Science.gov

Sample records for unknown mixing angle

  1. Overview of Neutrino Mixing Models and Their Mixing Angle Predictions

    SciTech Connect

    Albright, Carl H.

    2009-11-01

    An overview of neutrino-mixing models is presented with emphasis on the types of horizontal flavor and vertical family symmetries that have been invoked. Distributions for the mixing angles of many models are displayed. Ways to differentiate among the models and to narrow the list of viable models are discussed.

  2. Relating lepton mixing angles with lepton mass hierarchy

    NASA Astrophysics Data System (ADS)

    Borah, Debasish

    2016-01-01

    We revisit the possibility of relating lepton mixing angles with lepton mass hierarchies in a model-independent way. Guided by the existence of such relations in the quark sector, we first consider all the mixing angles, both in charged lepton and neutrino sectors to be related to the respective mass ratios. This allows us to calculate the leptonic mixing angles observed in neutrino oscillations as functions of the lightest neutrino mass. We show that for both normal and inverted hierarchical neutrino masses, this scenario does not give rise to correct leptonic mixing angles. We then show that correct leptonic mixing angles can be generated with normal hierarchical neutrino masses if the relation between mixing angle and mass ratio is restricted to 1-2 and 1-3 mixing in both charged lepton and neutrino sectors leaving the 2-3 mixing angles as free parameters. We then restrict the lightest neutrino mass as well as the difference between 2-3 mixing angles in charged lepton and neutrino sectors from the requirement of producing correct leptonic mixing angles. We constrain the lightest neutrino mass to be around 0.002 eV and leptonic Dirac CP phase δCP such that sin2δ CP ˜ (0.35-0.50). We also construct the leptonic mass matrices in terms of 2-3 mixing angles and lightest neutrino mass and briefly comment on the possibility of realizing texture zeros in the neutrino mass matrix.

  3. New mixing angles in the left-right symmetric model

    NASA Astrophysics Data System (ADS)

    Kokado, Akira; Saito, Takesi

    2015-12-01

    In the left-right symmetric model neutral gauge fields are characterized by three mixing angles θ12,θ23,θ13 between three gauge fields Bμ,WLμ 3,WRμ 3, which produce mass eigenstates Aμ,Zμ,Zμ', when G =S U (2 )L×S U (2 )R×U (1 )B-L×D is spontaneously broken down until U (1 )em . We find a new mixing angle θ', which corresponds to the Weinberg angle θW in the standard model with the S U (2 )L×U (1 )Y gauge symmetry, from these mixing angles. It is then shown that any mixing angle θi j can be expressed by ɛ and θ', where ɛ =gL/gR is a ratio of running left-right gauge coupling strengths. We observe that light gauge bosons are described by θ' only, whereas heavy gauge bosons are described by two parameters ɛ and θ'.

  4. Determination of the mixing angle between new charmonium states

    NASA Astrophysics Data System (ADS)

    Aliev, T. M.; Savc?, M.

    2015-04-01

    Using the pictures for as a mixture of charmonium and molecular states; as a mixture of and states, and as a mixture of the tetra-quark state with charmonium states, the corresponding mixing angles are estimated within the QCD sum rules. We find that our predictions for the mixing angles of the , , and states are considerably smaller compared to work in which the mixing angles are estimated from the condition in reproducing the mass of these states. Our conclusion is that the considered pictures for the , , and states are not successful in describing these states.

  5. Phenomenological relations for quark and neutrino mixing angles

    SciTech Connect

    Gaponov, Yu. V.; Khruschov, V. V.; Semenov, S. V.

    2008-01-15

    The most recent experimental data on quark and neutrino mixing angles are discussed. It is indicated that the results of the latest kaon-decay experiments are consistent with the unitarity condition for the first row of the Cabibbo-Kobayashi-Maskawa matrix if the currently available world-average value of the neutron lifetime is used to determine the element V{sub ud} of this matrix. The quark mixing angles are calculated within the Fritzsch-Scadron-Delbourgo-Rupp phenomenological approach on the basis of values of the masses of light and heavy constituent quarks. The neutrino mixing angles are calculated to a high precision with the aid of the hypothesis that the quark and neutrino mixing angles are complementary. The results are compatible with experimental data.

  6. Mixing angle of hadrons in QCD: A new view

    SciTech Connect

    Aliev, T. M.; Ozpineci, A.; Zamiralov, V.

    2011-01-01

    A new method for calculation of the mixing angle between the hadrons within QCD sum rules is proposed. In this method, the mixing is expressed in terms of quark and gluon degrees of freedom. As an application, the detailed calculation of the mixing angle between heavy cascade baryons {Xi}{sub Q} and {Xi}{sub Q}{sup '}, Q=c, b is presented and it is found that the mixing angle between {Xi}{sub b} ({Xi}{sub c}) and {Xi}{sub b}{sup '} ({Xi}{sub c}{sup '}) is given by {theta}{sub b}=6.4 deg. {+-}1.8 deg. ({theta}{sub c}=5.5 deg. {+-}1.8 deg.).

  7. Relation between the neutrino and quark mixing angles and grand unification.

    PubMed

    Raidal, Martti

    2004-10-15

    We argue that there exists a simple relation between the quark and lepton mixings, which supports the idea of grand unification and probes the underlying robust bimaximal fermion mixing structure of still unknown flavor physics. In this framework the quark mixing matrix is a parameter matrix describing the deviation of neutrino mixing from exactly bimaximal, predicting theta(sol)+theta(C)=pi/4, where theta(C) is the Cabibbo angle, theta(atm)+theta(CKM)(23)=pi/4 and theta(MNS)(13) approximately theta(CKM)(13) approximately O(lambda(3)), in perfect agreement with experimental data. Both non-Abelian and Abelian flavor symmetries are needed for such a prediction to be realistic. An example flavor model capable of explaining this flavor mixing pattern and inducing the measured quark and lepton masses is outlined. PMID:15524979

  8. Quark and lepton mixing angles with a dodeca-symmetry

    NASA Astrophysics Data System (ADS)

    Kim, Jihn E.; Seo, Min-Seok

    2011-02-01

    The discrete symmetry D 12 at the electroweak scale is used to fix the quark and lepton mixing angles. At the leading order, the Cabbibo angle θ C is 15°, and the PMNS matrix is of a bi-dodeca-mixing form giving the Solar-neutrino angle θ sol = 30°. Thus, there results the relation θ sol + θ C ≃ 45°. Out of discrete vacua, a certain vacuum is chosen for this assignment to be consistent with the dodeca-symmetry. A shift of θ C from 15° to 13.14° might arise from a small breaking of the dodeca-symmetry. The spontaneous breaking leading to the required electroweak vacuum is made possible by realizing the electroweak dodeca-symmetry explicitly at a high energy scale. At the vacuum we chose Arg.Det. M q is nonzero, and hence a solution of the strong CP problem invites a very light axion at a high energy scale. We also comment how the next level corrections can fit the mixing angles to the observed values. An example realizing this idea needs a symmetry SU(3) c × SU(2) L × U(1) Y × D 12 × U(1)Γ × Z 3 × Z 2.

  9. Accommodate the Neutrino Mixing Angle θ13 within SU(5)

    NASA Astrophysics Data System (ADS)

    Zhang, Jue; Kile, Jennifer; Perez, Jay; Ramond, Pierre

    2014-03-01

    Tri-bimaximal, Golden Ratio or Bimaximal matrix has long been considered as a good leading order parametrization for the neutrino mixing matrix. However, the recent discovery of non-zero θ13 neutrino mixing angle requires corrections to these leading order parametrizations. Those corrections may come from the quark sector, as in Grand Unified Theories Yukawa couplings of quarks and leptons are closely related. To explore this possibility, we perform a numerical search with the guidance of SU(5), and indeed find some solutions that can accommodate current neutrino data. This research is supported by the DOE grant No. DE-FG02-97ER41029 and CLAS Dissertation Fellowship.

  10. Measurement of flow angle and mass flow rate in an unknown flow field using hot film and hot wire probes

    NASA Technical Reports Server (NTRS)

    Helms, V. T., III

    1978-01-01

    A data reduction technique applicable to constant temperature hot film and hot wire probes is presented which is used to determine flow angle and mass flow rate in an unknown flow field over a wide range of flow conditions at supersonic and hypersonic velocities. The technique virtually eliminates the effect of Reynolds number on a probe's flow angle sensitivity. Methods for extrapolating a limited amount of mass flow rate calibration data to include the range of mass flow rate encountered in an experiment are also given. This technique has been applied to data obtained using a hot film probe during surveys in the leeside flow field of a space shuttle orbiter configuration.

  11. D14 - a common origin of the Cabibbo angle and the lepton mixing angle θ13l

    NASA Astrophysics Data System (ADS)

    Hagedorn, C.; Meloni, D.

    2012-09-01

    It has been shown that the Cabibbo angle can be predicted in terms of group theoretical quantities, if the dihedral group D14 plays the role of a flavor symmetry. We extend a supersymmetric D14 model to the lepton sector and show that θ13ν and the deviation of θ23ν from maximal mixing in the neutrino sector originate, similar to the Cabibbo angle in the quark sector, from a mismatch of different subgroups of D14 and are of the size of the Cabibbo angle. The mixing angles in the charged lepton sector are small. Thus, the lepton mixing angle θ13l is naturally in its experimentally preferred range and θ23l within its 3σ range. The solar mixing angle is of order one and the charged lepton mass hierarchy is correctly reproduced. Leading order results are only slightly perturbed, if next-to-leading order corrections are taken into account.

  12. Large mixing angles from many right-handed neutrinos

    NASA Astrophysics Data System (ADS)

    Feldstein, Brian; Klemm, William

    2012-03-01

    A beautiful understanding of the smallness of the neutrino masses may be obtained via the seesaw mechanism, whereby one takes advantage of the key qualitative distinction between the neutrinos and the other fermions: right-handed neutrinos are gauge singlets, and may therefore have large Majorana masses. The standard seesaw mechanism, however, does not address the apparent lack of hierarchy in the neutrino masses compared to the quarks and charged leptons, nor the large leptonic mixing angles compared to the small angles of the Cabibbo-Kobayashi-Maskawa matrix. In this paper, we will show that the singlet nature of the right-handed neutrinos may be taken advantage of in one further way in order to solve these remaining problems: Unlike particles with gauge interactions, whose numbers are constrained by anomaly cancellation, the number of gauge singlet particles is essentially undetermined. If large numbers of gauge singlet fermions are present at high energies—as is suggested, for example, by various string constructions—then the effective low-energy neutrino mass matrix may be determined as a sum over many distinct Yukawa couplings, with the largest ones being the most important. This can reduce hierarchy, and lead to large mixing angles. Assuming a statistical distribution of fundamental parameters, we will show that this scenario leads to a good fit to low-energy phenomenology, with only a few qualitative assumptions guided by the known quark and lepton masses. The scenario leads to predictions of a normal hierarchy for the neutrino masses, and a value for the |mee| mass matrix element of about 1-6 meV.

  13. Determination of the third neutrino-mixing angle θ13 and its implications

    NASA Astrophysics Data System (ADS)

    Roy, D. P.

    2013-05-01

    Until 2010 we had three unknown parameters of neutrino oscillation—the third mixing angle θ13, the sign of the larger mass difference Δm312 and the CP violating phase δ. Thanks to a number of consistent experimental results since then, culminating in the recent Daya Bay reactor neutrino data, we now have a definitive determination of θ13. Moreover its measured value, sin22θ13 ≈ 0.1, is close to its earlier upper limit. This has promising implications for the determination of the two remaining unknown parameters from the present and proposed accelerator neutrino experiments in the foreseeable future. This article presents a pedagogical review of these profound developments for the wider community of young physicists including university students.

  14. Mixing matrix estimation from sparse mixtures with unknown number of sources.

    PubMed

    Zhou, Guoxu; Yang, Zuyuan; Xie, Shengli; Yang, Jun-Mei

    2011-02-01

    In blind source separation, many methods have been proposed to estimate the mixing matrix by exploiting sparsity. However, they often need to know the source number a priori, which is very inconvenient in practice. In this paper, a new method, namely nonlinear projection and column masking (NPCM), is proposed to estimate the mixing matrix. A major advantage of NPCM is that it does not need any knowledge of the source number. In NPCM, the objective function is based on a nonlinear projection and its maxima just correspond to the columns of the mixing matrix. Thus a column can be estimated first by locating a maximum and then deflated by a masking operation. This procedure is repeated until the evaluation of the objective function decreases to zero dramatically. Thus the mixing matrix and the number of sources are estimated simultaneously. Because the masking procedure may result in some small and useless local maxima, particle swarm optimization (PSO) is introduced to optimize the objective function. Feasibility and efficiency of PSO are also discussed. Comparative experimental results show the efficiency of NPCM, especially in the cases where the number of sources is unknown and the sources are relatively less sparse. PMID:21095863

  15. W. K. H. Panofsky Prize: The Road to Neutrino Mixing Angle θ13

    NASA Astrophysics Data System (ADS)

    Luk, Kam-Biu

    2014-03-01

    A series of solar, atmospheric, accelerator and reactor neutrino experiments have observed transformations of one type of neutrino to another type. This intriguing phenomenon called neutrino oscillation was predicted by Pontecorvo, Maki, Nakagawa and Sakata. It is due to the fact that the three flavors of neutrinos observed in laboratories are mixtures of three neutrino mass eigenstates. Neutrino mixing is described by a set of three mixing angles and a CP-violating phase. The smallest angle, θ13, was unknown until 2012. Knowing the value of θ13 is essential. Besides being a fundamental parameter of nature, knowing its value will improve our understanding of neutrino mixing, provide guidance for building theoretical models and define the future program of neutrino oscillation experiments. In this talk, the experimental development that led to the recent discovery of a new θ13-driven neutrino oscillation will be presented. Work was supported by the US Department of Energy, Office of High Energy Physics, contract DE-AC02-05CH11231.

  16. The Cabibbo angle as a universal seed for quark and lepton mixings

    NASA Astrophysics Data System (ADS)

    Roy, S.; Morisi, S.; Singh, N. N.; Valle, J. W. F.

    2015-09-01

    A model-independent ansatz to describe lepton and quark mixing in a unified way is suggested based upon the Cabibbo angle. In our framework neutrinos mix in a "Bi-Large" fashion, while the charged leptons mix as the "down-type" quarks do. In addition to the standard Wolfenstein parameters (λ, A) two other free parameters (ψ, δ) are needed to specify the physical lepton mixing matrix. Through this simple assumption one makes specific predictions for the atmospheric angle as well as leptonic CP violation in good agreement with current observations.

  17. Wave-mixing interference in three-photon resonant atomic excitation with cross-polarized angled beams

    SciTech Connect

    Peet, V.

    2006-09-15

    Three-photon excitation and associated wave mixing near the 6s and 6s{sup '} resonances of xenon have been studied utilizing resonance-enhanced multiphoton ionization in angled beams with different polarizations. It has been shown that a complete cancellation of three-photon resonant atomic excitation caused by the well-known destructive wave-mixing interference occurs in s and p polarization of angled beams but distinct resonance ionization enhancement is observed when pump beams have orthogonal polarization planes. Pressure-induced evolution of the resonance ionization peak in cross-polarized beams is identical to that observed with counterpropagating beams. The reason for such resonance ionization enhancement is unknown and cannot be explained within the frame work of existing theory. The effect may result from some peculiarities of wave-mixing interference in a multilevel atomic system, where different degenerate magnetic sublevels of the upper atomic state and multiple interfering excitation processes are involved. Another possibility is that the resonance ionization enhancement results from a process where weak counterpropagating light is generated within the excitation region of cross-polarized angled beams.

  18. Neutrino interactions in astrophysics and the third neutrino mixing angle {theta}{sub 13}

    SciTech Connect

    Balantekin, A. B.

    2010-08-12

    The third neutrino mixing angle {theta}{sub 13} is the least known one. In this contribution, after a brief discussion of the current efforts to determine the value of this angle better, various astrophysical implications of a non-zero value of {theta}{sub 13} are summarized.

  19. Effects of energy and pitch angle mixed diffusion on radiation belt electrons

    NASA Astrophysics Data System (ADS)

    Zheng, Qiuhua; Fok, Mei-Ching; Albert, Jay; Horne, Richard B.; Meredith, Nigel P.

    2011-05-01

    Understanding the dynamics of the Earth’s radiation belts is important for modeling and forecasting the intensities of energetic electrons in space. Wave diffusion processes are known to be responsible for loss and acceleration of electrons in the radiation belts. Several recent studies indicate pitch angle and energy mixed-diffusion are also important when considering the total diffusive effects. In this study, a two-dimensional Fokker Planck equation is solved numerically using the Alternating Direction Implicit method. Mixed diffusion due to whistler-mode chorus waves tends to slow down the total diffusion in the energy-pitch angle space, particularly at smaller equatorial pitch angles. We then incorporate the electron energy and pitch angle mixed diffusions due to whistler-model chorus waves into the 4-dimensional Radiation Belt Environment (RBE) model and study the effect of mixed diffusion during a storm in October 2002. The 4-D simulation results show that energy and pitch angle mixed diffusion decrease the electron fluxes in the outer belt while electron fluxes in the slot region are enhanced (up to a factor of 2) during storm time.

  20. Radiative generation of quark masses and mixing angles in the two Higgs doublet model

    NASA Astrophysics Data System (ADS)

    Ibarra, Alejandro; Solaguren-Beascoa, Ana

    2014-09-01

    We present a framework to generate the quark mass hierarchies and mixing angles by extending the Standard Model with one extra Higgs doublet. The charm and strange quark masses are generated by small quantum effects, thus explaining the hierarchy between the second and third generation quark masses. All the mixing angles are also generated by small quantum effects: the Cabibbo angle is generated at zeroth order in perturbation theory, while the remaining off-diagonal entries of the Cabibbo-Kobayashi-Maskawa matrix are generated at first order, hence explaining the observed hierarchy |Vub|,|Vcb|≪|Vus|. The values of the radiatively generated parameters depend only logarithmically on the heavy Higgs mass, therefore this framework can be reconciled with the stringent limits on flavor violation by postulating a sufficiently large new physics scale.

  1. Golden ratio lepton mixing and nonzero reactor angle with A5

    NASA Astrophysics Data System (ADS)

    de Medeiros Varzielas, I.; Lavoura, L.

    2014-05-01

    We furnish a supersymmetric extension of the Standard Model with a flavour discrete symmetry A5 under which the lepton fields transform as an irreducible triplet. Additional (‘flavon’) superfields are used to break A5 into a {Z}_2 \\times {Z}_2 subgroup in the charged-lepton sector and another {Z}_2 subgroup in the neutrino sector. The first column of the resulting lepton mixing matrix is predicted and has entries which are related to the golden ratio. Using the observed θ13 as input, our model predicts a solar mixing angle θ12 in very good agreement with experiment; it also predicts a correlation between the atmospheric mixing angle θ23 and the CP-violating Dirac phase δ.

  2. Measurement of the weak mixing angle with the Drell-Yan process in proton-proton collisions at the LHC

    SciTech Connect

    Chatrchyan, S.; et al.,

    2011-12-01

    A multivariate likelihood method to measure electroweak couplings with the Drell-Yan process at the LHC is presented. The process is described by the dilepton rapidity, invariant mass, and decay angle distributions. The decay angle ambiguity due to the unknown assignment of the scattered constituent quark and antiquark to the two protons in a collision is resolved statistically using correlations between the observables. The method is applied to a sample of dimuon events from proton-proton collisions at sqrt(s) = 7 TeV collected by the CMS experiment at the LHC, corresponding to an integrated luminosity of 1.1 inverse femtobarns. From the dominant u-ubar, d-dbar to gamma*/Z to opposite sign dimuons process, the effective weak mixing angle parameter is measured to be sin^2(theta[eff]) = 0.2287 +/- 0.0020 (stat.) +/- 0.0025 (syst.). This result is consistent with measurements from other processes, as expected within the standard model.

  3. Neutrino masses and mixing angles in a predictive theory of fermion masses

    SciTech Connect

    Dimopoulos, S. ); Hall, L.J. ); Raby, S. )

    1993-05-01

    A framework for predicting charged fermion masses in supersymmetric grand unified theories is extended to make predictions in the neutrino sector. Eight new predictions are made: the two neutrino mass ratios and the three mixing angles and three phases of the weak leptonic mixing matrix. There are three versions of the theory which are relevant for producing MSW neutrino oscillations in the Sun. One of these is preferred by the combined solar neutrino observations. Another will be probed significantly by the searches for [nu][sub [mu

  4. Mass and mixing angle patterns in the Standard Model and its material Supersymmetric Extension

    SciTech Connect

    Ramond, P.

    1992-01-01

    Using renormalization group techniques, we examine several interesting relations among masses and mixing angles of quarks and lepton in the Standard Model of Elementary Particle Interactions as a functionof scale. We extend the analysis to the minimal Supersymmetric Extension to determine its effect on these mass relations. For a heavy to quark, and minimal supersymmetry, most of these relations, can be made to agree at one unification scale.

  5. Searching for 'Unknown Unknowns'

    NASA Technical Reports Server (NTRS)

    Parsons, Vickie S.

    2005-01-01

    The NASA Engineering and Safety Center (NESC) was established to improve safety through engineering excellence within NASA programs and projects. As part of this goal, methods are being investigated to enable the NESC to become proactive in identifying areas that may be precursors to future problems. The goal is to find unknown indicators of future problems, not to duplicate the program-specific trending efforts. The data that is critical for detecting these indicators exist in a plethora of dissimilar non-conformance and other databases (without a common format or taxonomy). In fact, much of the data is unstructured text. However, one common database is not required if the right standards and electronic tools are employed. Electronic data mining is a particularly promising tool for this effort into unsupervised learning of common factors. This work in progress began with a systematic evaluation of available data mining software packages, based on documented decision techniques using weighted criteria. The four packages, which were perceived to have the most promise for NASA applications, are being benchmarked and evaluated by independent contractors. Preliminary recommendations for "best practices" in data mining and trending are provided. Final results and recommendations should be available in the Fall 2005. This critical first step in identifying "unknown unknowns" before they become problems is applicable to any set of engineering or programmatic data.

  6. CKM-UT Angles: Mixing And CP Violation at the B Factories

    SciTech Connect

    Finocchiaro, Giuseppe; /Frascati

    2011-11-07

    We review the experimental status of the angles of the Unitarity Triangle of the CKM matrix, as measured by the BABAR and Belle experiments. The B Factories have demonstrated since the beginning of this decade that CP violation in the B meson system is consistent with the Standard Model (SM) description in terms of the complex phase in the three-by-three Cabibbo-Kobayashi-Maskawa (CKM) matrix. With one single phase, the SM predicts clear patterns for quark mixing and CP violations, to be satisfied by all processes.

  7. Low Q2 weak mixing angle measurements and rare Higgs decays

    NASA Astrophysics Data System (ADS)

    Davoudiasl, Hooman; Lee, Hye-Sung; Marciano, William J.

    2015-09-01

    A weighted average weak mixing angle θW derived from relatively low Q2 experiments is compared with the standard model prediction obtained from precision measurements. The approximate 1.8 sigma discrepancy is fit with an intermediate mass (˜10 - 35 GeV ) "dark" Z boson Zd, corresponding to a U (1 )d gauge symmetry of hidden dark matter, which couples to our world via kinetic and Z - Zd mass mixing. Constraints on such a scenario are obtained from precision electroweak bounds and searches for the rare Higgs decays H →Z Zd→4 charged leptons at the LHC. The sensitivity of future anticipated low Q2 measurements of sin2θW(Q2) to intermediate mass Zd is also illustrated. This dark Z scenario can provide interesting concomitant signals in low energy parity violating measurements and rare Higgs decays at the LHC over the next few years.

  8. Measuring the 13 Neutrino Mixing Angle and the CP Phase with Neutrino Telescopes

    SciTech Connect

    Serpico, P.D.; Kachelriess, M.

    2005-06-03

    The observed excess of high-energy cosmic rays from the Galactic plane in the energy range around 10{sup 18} eV may be explained by neutron primaries generated in the photodissociation of heavy nuclei. In this scenario, lower-energy neutrons decay before reaching the Earth and produce a detectable flux in a 1 km{sup 3} neutrino telescope. The initial flavor composition of the neutrino flux, {phi}({nu}{sub e}):{phi}({nu}{sub {mu}}):{phi}({nu}{sub {tau}})=1:0:0, permits a combined {nu}{sub {mu}}/{nu}{sub {tau}} appearance and {nu}{sub e} disappearance experiment. The observable flux ratio {phi}({nu}{sub {mu}})/{phi}({nu}{sub e}+{nu}{sub {tau}}) at Earth depends on the 13 mixing angle {theta}{sub 13} and the leptonic CP phase {delta}{sub CP}, thus opening a new way to measure these two quantities.

  9. 1++ nonet singlet-octet mixing angle, strange quark mass, and strange quark condensate

    NASA Astrophysics Data System (ADS)

    Yang, Kwei-Chou

    2011-08-01

    Two strategies are taken into account to determine the f1(1420)-f1(1285) mixing angle θ. (i) First, using the Gell-Mann-Okubo mass formula together with the K1(1270)-K1(1400) mixing angle θK1=(-34±13)° extracted from the data for B(B→K1(1270)γ), B(B→K1(1400)γ), B(τ→K1(1270)ντ), and B(τ→K1(1420)ντ), gave θ=(23-23+17)°. (ii) Second, from the study of the ratio for f1(1285)→ϕγ and f1(1285)→ρ0γ branching fractions, we have a twofold solution θ=(19.4-4.6+4.5)° or (51.1-4.6+4.5)°. Combining these two analyses, we thus obtain θ=(19.4-4.6+4.5)°. We further compute the strange quark mass and strange quark condensate from the analysis of the f1(1420)-f1(1285) mass difference QCD sum rule, where the operator-product-expansion series is up to dimension six and to O(αs3,ms2αs2) accuracy. Using the average of the recent lattice results and the θ value that we have obtained as inputs, we get /=0.41±0.09.

  10. Optimizing the determination of the neutrino mixing angle θ13 from reactor data

    NASA Astrophysics Data System (ADS)

    Khan, Amir N.; McKay, Douglas W.; Ralston, John P.

    2014-07-01

    The technical breakthroughs of multiple detectors developed by Daya Bay and RENO collaborations have gotten great attention. Yet the optimal determination of neutrino mixing parameters from reactor data depends on the statistical method and demands equal attention. We find that a straightforward method using minimal parameters will generally outperform a multi-parameter method by delivering more reliable values with sharper resolution. We review standard confidence levels and statistical penalties for models using extra parameters, and apply those rules to our analysis. We find that the methods used in recent work of the Daya Bay and RENO collaborations have several undesirable properties. The existing work also uses nonstandard measures of significance which we are unable to explain. A central element of the current methods consists of variationally fitting many more parameters than data points. As a result, the experimental resolution of sin2(2θ13) is degraded. The results also become extremely sensitive to certain model parameters that can be adjusted arbitrarily. The number of parameters to include in evaluating significance is an important issue that has generally been overlooked. The measures of significance applied previously would be consistent if and only if all parameters but one were considered to have no physical relevance for the experiment's hypothesis test. Simpler, more transparent methods can improve the determination of the mixing angle θ13 from reactor data, and exploit the advantages from superb hardware technique of the experiments. We anticipate that future experimental analysis will fully exploit those advantages.

  11. Theories of the pattern of quarks and lepton masses and mixing angles

    NASA Astrophysics Data System (ADS)

    Khan, Almas

    In this thesis we present a very simple SO(10) model with a radiative hierarchy that is very predictive. It is shown that this model gives an excellent fit to quark and lepton masses and mixings including the CKM phase and gives a definite relation between the neutrino angles theta 13 and theta23. We extend the model by including the right handed neutrinos and show that there is a definite correlation between the neutrino angle theta13 and the leptonic CP-violating phase. The Higgs mass-squared parameter might have a physical explanation in the context of "multiverse" scenario [2, 3]. We extend the analysis of [2, 3] to a slightly more general Higgs structure and show that a possible anthropic explanation of the fact that mu/md 1 emerges. We point out that one of the anthropic arguments proposed in [2,3] to exclude most of the mu2 > 0 region is invalidated by the existence of dark energy and show that the existence of dark energy makes possible a very different set of arguments that reach even stronger conclusions. If one or more extra Z bosons exist at low energies above the electroweak scale, then the patterns of their couplings to quarks and leptons would tell us something quite directly about unification. We show that certain ratios of these couplings allow one to make rigorous inferences about how much unification exists at high energy. We classify possible patterns of couplings that could be seen at the LHC and future accelerators into nine cases. This is the first general group-theoretical analysis of extra Z bosons of this type.

  12. A mixed problem of plate bending for doubly connected domains with partially unknown boundaries in the presence of cyclic symmetry

    NASA Astrophysics Data System (ADS)

    Odishelidze, N.; Criado-Aldeanueva, F.

    2010-10-01

    This paper addresses the problem of plate bending for a doubly connected body with outer and inner boundaries in the form of regular polygons with a common center and parallel sides. The neighborhoods of the vertices of the inner boundary are equal full-strength smooth arcs symmetric about the rays coming from the vertices to the center, but have unknown positions. Rigid bars are attached to the linear parts of the boundary. The plate bends by the moments applied to the middle point bars. The unknown arcs are free from external stresses. The same problem of plate bending is considered for a regular hexagon weakened by a full-strength hole. Using the methods of complex analysis, the analytical image of Kolosov-Muskhelishvilis complex potentials (characterizing an elastic equilibrium of the body), the plate deflection and unknown parts of its boundary are determined under the condition that the tangential normal moment on that plate takes a constant value. Numerical analyses are also performed and the corresponding graphs are constructed.

  13. Small RNA deep sequencing revealed that mixed infection of known and unknown viruses were common in field collected vegetable samples

    Technology Transfer Automated Retrieval System (TEKTRAN)

    In an effort to characterize the causal agents for plant diseases in field collected samples using the small RNA deep sequencing technology, numerous known or novel viruses and viroids were identified. In many cases, a mixed infection with multiple pathogen species was common. Such situation compl...

  14. A simple molecular mechanics integrator in mixed rigid body and dihedral angle space

    SciTech Connect

    Vitalis, Andreas; Pappu, Rohit V.

    2014-07-21

    We propose a numerical scheme to integrate equations of motion in a mixed space of rigid-body and dihedral angle coordinates. The focus of the presentation is biomolecular systems and the framework is applicable to polymers with tree-like topology. By approximating the effective mass matrix as diagonal and lumping all bias torques into the time dependencies of the diagonal elements, we take advantage of the formal decoupling of individual equations of motion. We impose energy conservation independently for every degree of freedom and this is used to derive a numerical integration scheme. The cost of all auxiliary operations is linear in the number of atoms. By coupling the scheme to one of two popular thermostats, we extend the method to sample constant temperature ensembles. We demonstrate that the integrator of choice yields satisfactory stability and is free of mass-metric tensor artifacts, which is expected by construction of the algorithm. Two fundamentally different systems, viz., liquid water and an α-helical peptide in a continuum solvent are used to establish the applicability of our method to a wide range of problems. The resultant constant temperature ensembles are shown to be thermodynamically accurate. The latter relies on detailed, quantitative comparisons to data from reference sampling schemes operating on exactly the same sets of degrees of freedom.

  15. Instantaneous, parallel mapping of protein electronic function with angle-resolved coherent wave-mixing

    NASA Astrophysics Data System (ADS)

    Mercer, Ian

    2010-03-01

    We present a novel laser method, angle-resolved coherent (ARC) wave-mixing, that separates out coherent electronic couplings from energy transfers in an instantaneous two-dimensional mapping (Ian P. Mercer et.al., Phys. Rev. Lett. 102, 57402, 2009). For this we use an ultra-broadband hollow fibre laser source. The power of the new method is demonstrated with the light harvesting complex II (LH2) of purple bacteria at ambient temperature. We observe signaturs of a coherent quantum electronic beating, a correlation between excitation and emission energies in the protein and a coherent component to the energy transfer between molecular rings. We are interested in exploring avenues for high throughput fingerprinting of molecular structure and function. Massively parallel maps, rich in detail, can be taken from solutions, surface films or solids of between 1 and 1000 microL. Each ARC map is generated instantaneously, with high throughput (currently up to 1kHz frame rate) and is noninvasive.

  16. Measurement of the neutrino mixing angle θ13 with the Double Chooz detector

    NASA Astrophysics Data System (ADS)

    Franke, Michael; Double Chooz Collaboration

    2015-07-01

    The θ13 parameter of the PMNS mixing matrix remained unknown until first hints and estimates by both Double Chooz and beam experiments in 2011. The Double Chooz reactor antineutrino experiment aims for a precise measurement of this parameter. Located at the Chooz nuclear power plant in France, it relies on a two identical detector measurement, canceling most of systematic uncertainties related to neutrino flux emission and detection. The near detector, located at a few hundred meters from the two reactor cores, aims to monitor the flux νe from the cores. The far detector, located at a distance of about one kilometer from the reactor cores near the expected first maximum of the oscillation, measures an energy dependent deficit in the electron antineutrino spectrum. Different approaches are used to extract θ13: A combined rate and spectral shape analysis as well as a background-model-independent analysis based on reactor power variations. A unique feature of the Double Chooz experiment is that it was able to take data during a time period with both reactors off. This provides access to the background only measurement, allowing to crosscheck the background models used in the oscillation analysis. A new analysis based on 467.90 live days with 66.5 GW-ton-years of exposure with far detector only, leads to a value of sin22θ13 = 0:090+0:032-0.029. Data taking in the near detector has started end of 2014, enabling a significant reduction of both reactor and detector related systematics uncertainties in a near future.

  17. Small-angle solution scattering using the mixed-mode pixel array detector.

    PubMed

    Koerner, Lucas J; Gillilan, Richard E; Green, Katherine S; Wang, Suntao; Gruner, Sol M

    2011-03-01

    Solution small-angle X-ray scattering (SAXS) measurements were obtained using a 128 128 pixel X-ray mixed-mode pixel array detector (MMPAD) with an 860?s readout time. The MMPAD offers advantages for SAXS experiments: a pixel full-well of >2 10(7) 10?keV X-rays, a maximum flux rate of 10(8)?X-rays pixel(-1) s(-1), and a sub-pixel point-spread function. Data from the MMPAD were quantitatively compared with data from a charge-coupled device (CCD) fiber-optically coupled to a phosphor screen. MMPAD solution SAXS data from lysozyme solutions were of equal or better quality than data captured by the CCD. The read-noise (normalized by pixel area) of the MMPAD was less than that of the CCD by an average factor of 3.0. Short sample-to-detector distances were required owing to the small MMPAD area (19.2?mm 19.2?mm), and were revealed to be advantageous with respect to detector read-noise. As predicted by the Shannon sampling theory and confirmed by the acquisition of lysozyme solution SAXS curves, the MMPAD at short distances is capable of sufficiently sampling a solution SAXS curve for protein shape analysis. The readout speed of the MMPAD was demonstrated by continuously monitoring lysozyme sample evolution as radiation damage accumulated. These experiments prove that a small suitably configured MMPAD is appropriate for time-resolved solution scattering measurements. PMID:21335900

  18. Measurement of the Effective Weak Mixing Angle inpp¯→Z/γ*→e+e-Events

    DOE PAGESBeta

    Abazov, V.  M.; Abbott, B.; Acharya, B.  S.; Adams, M.; Adams, T.; Agnew, J.  P.; Alexeev, G.  D.; Alkhazov, G.; Alton, A.; Askew, A.; et al

    2015-07-22

    We present a measurement of the fundamental parameter of the standard model, the weak mixing angle sin2θℓeff which determines the relative strength of weak and electromagnetic interactions, in pp¯→Z/γ*→e+e- events at a center of mass energy of 1.96 TeV, using data corresponding to 9.7 fb-1 of integrated luminosity collected by the D0 detector at the Fermilab Tevatron. The effective weak mixing angle is extracted from the forward-backward charge asymmetry as a function of the invariant mass around the Z boson pole. The measured value of sin2θℓeff=0.23147±0.00047 is the most precise measurement from light quark interactions to date, with a precisionmore »close to the best LEP and SLD results.« less

  19. Measurement of the Effective Weak Mixing Angle in p p ¯→Z /γ*→e+e- Events

    NASA Astrophysics Data System (ADS)

    Abazov, V. M.; Abbott, B.; Acharya, B. S.; Adams, M.; Adams, T.; Agnew, J. P.; Alexeev, G. D.; Alkhazov, G.; Alton, A.; Askew, A.; Atkins, S.; Augsten, K.; Avila, C.; Badaud, F.; Bagby, L.; Baldin, B.; Bandurin, D. V.; Banerjee, S.; Barberis, E.; Baringer, P.; Bartlett, J. F.; Bassler, U.; Bazterra, V.; Bean, A.; Begalli, M.; Bellantoni, L.; Beri, S. B.; Bernardi, G.; Bernhard, R.; Bertram, I.; Besançon, M.; Beuselinck, R.; Bhat, P. C.; Bhatia, S.; Bhatnagar, V.; Blazey, G.; Blessing, S.; Bloom, K.; Boehnlein, A.; Boline, D.; Boos, E. E.; Borissov, G.; Borysova, M.; Brandt, A.; Brandt, O.; Brock, R.; Bross, A.; Brown, D.; Bu, X. B.; Buehler, M.; Buescher, V.; Bunichev, V.; Burdin, S.; Buszello, C. P.; Camacho-Pérez, E.; Casey, B. C. K.; Castilla-Valdez, H.; Caughron, S.; Chakrabarti, S.; Chan, K. M.; Chandra, A.; Chapon, E.; Chen, G.; Cho, S. W.; Choi, S.; Choudhary, B.; Cihangir, S.; Claes, D.; Clutter, J.; Cooke, M.; Cooper, W. E.; Corcoran, M.; Couderc, F.; Cousinou, M.-C.; Cutts, D.; Das, A.; Davies, G.; de Jong, S. J.; De La Cruz-Burelo, E.; Déliot, F.; Demina, R.; Denisov, D.; Denisov, S. P.; Desai, S.; Deterre, C.; DeVaughan, K.; Diehl, H. T.; Diesburg, M.; Ding, P. F.; Dominguez, A.; Dubey, A.; Dudko, L. V.; Duperrin, A.; Dutt, S.; Eads, M.; Edmunds, D.; Ellison, J.; Elvira, V. D.; Enari, Y.; Evans, H.; Evdokimov, V. N.; Fauré, A.; Feng, L.; Ferbel, T.; Fiedler, F.; Filthaut, F.; Fisher, W.; Fisk, H. E.; Fortner, M.; Fox, H.; Fuess, S.; Garbincius, P. H.; Garcia-Bellido, A.; García-González, J. A.; Gavrilov, V.; Geng, W.; Gerber, C. E.; Gershtein, Y.; Ginther, G.; Gogota, O.; Golovanov, G.; Grannis, P. D.; Greder, S.; Greenlee, H.; Grenier, G.; Gris, Ph.; Grivaz, J.-F.; Grohsjean, A.; Grünendahl, S.; Grünewald, M. W.; Guillemin, T.; Gutierrez, G.; Gutierrez, P.; Haley, J.; Han, L.; Harder, K.; Harel, A.; Hauptman, J. M.; Hays, J.; Head, T.; Hebbeker, T.; Hedin, D.; Hegab, H.; Heinson, A. P.; Heintz, U.; Hensel, C.; Heredia-De La Cruz, I.; Herner, K.; Hesketh, G.; Hildreth, M. D.; Hirosky, R.; Hoang, T.; Hobbs, J. D.; Hoeneisen, B.; Hogan, J.; Hohlfeld, M.; Holzbauer, J. L.; Howley, I.; Hubacek, Z.; Hynek, V.; Iashvili, I.; Ilchenko, Y.; Illingworth, R.; Ito, A. S.; Jabeen, S.; Jaffré, M.; Jayasinghe, A.; Jeong, M. S.; Jesik, R.; Jiang, P.; Johns, K.; Johnson, E.; Johnson, M.; Jonckheere, A.; Jonsson, P.; Joshi, J.; Jung, A. W.; Juste, A.; Kajfasz, E.; Karmanov, D.; Katsanos, I.; Kaur, M.; Kehoe, R.; Kermiche, S.; Khalatyan, N.; Khanov, A.; Kharchilava, A.; Kharzheev, Y. N.; Kiselevich, I.; Kohli, J. M.; Kozelov, A. V.; Kraus, J.; Kumar, A.; Kupco, A.; Kurča, T.; Kuzmin, V. A.; Lammers, S.; Lebrun, P.; Lee, H. S.; Lee, S. W.; Lee, W. M.; Lei, X.; Lellouch, J.; Li, D.; Li, H.; Li, L.; Li, Q. Z.; Lim, J. K.; Lincoln, D.; Linnemann, J.; Lipaev, V. V.; Lipton, R.; Liu, H.; Liu, Y.; Lobodenko, A.; Lokajicek, M.; Lopes de Sa, R.; Luna-Garcia, R.; Lyon, A. L.; Maciel, A. K. A.; Madar, R.; Magaña-Villalba, R.; Malik, S.; Malyshev, V. L.; Mansour, J.; Martínez-Ortega, J.; McCarthy, R.; McGivern, C. L.; Meijer, M. M.; Melnitchouk, A.; Menezes, D.; Mercadante, P. G.; Merkin, M.; Meyer, A.; Meyer, J.; Miconi, F.; Mondal, N. K.; Mulhearn, M.; Nagy, E.; Narain, M.; Nayyar, R.; Neal, H. A.; Negret, J. P.; Neustroev, P.; Nguyen, H. T.; Nunnemann, T.; Orduna, J.; Osman, N.; Osta, J.; Pal, A.; Parashar, N.; Parihar, V.; Park, S. K.; Partridge, R.; Parua, N.; Patwa, A.; Penning, B.; Perfilov, M.; Peters, Y.; Petridis, K.; Petrillo, G.; Pétroff, P.; Pleier, M.-A.; Podstavkov, V. M.; Popov, A. V.; Prewitt, M.; Price, D.; Prokopenko, N.; Qian, J.; Quadt, A.; Quinn, B.; Ratoff, P. N.; Razumov, I.; Ripp-Baudot, I.; Rizatdinova, F.; Rominsky, M.; Ross, A.; Royon, C.; Rubinov, P.; Ruchti, R.; Sajot, G.; Sánchez-Hernández, A.; Sanders, M. P.; Santos, A. S.; Savage, G.; Savitskyi, M.; Sawyer, L.; Scanlon, T.; Schamberger, R. D.; Scheglov, Y.; Schellman, H.; Schwanenberger, C.; Schwienhorst, R.; Sekaric, J.; Severini, H.; Shabalina, E.; Shary, V.; Shaw, S.; Shchukin, A. A.; Simak, V.; Skubic, P.; Slattery, P.; Smirnov, D.; Snow, G. R.; Snow, J.; Snyder, S.; Söldner-Rembold, S.; Sonnenschein, L.; Soustruznik, K.; Stark, J.; Stoyanova, D. A.; Strauss, M.; Suter, L.; Svoisky, P.; Titov, M.; Tokmenin, V. V.; Tsai, Y.-T.; Tsybychev, D.; Tuchming, B.; Tully, C.; Uvarov, L.; Uvarov, S.; Uzunyan, S.; Van Kooten, R.; van Leeuwen, W. M.; Varelas, N.; Varnes, E. W.; Vasilyev, I. A.; Verkheev, A. Y.; Vertogradov, L. S.; Verzocchi, M.; Vesterinen, M.; Vilanova, D.; Vokac, P.; Wahl, H. D.; Wang, M. H. L. S.; Warchol, J.; Watts, G.; Wayne, M.; Weichert, J.; Welty-Rieger, L.; Williams, M. R. J.; Wilson, G. W.; Wobisch, M.; Wood, D. R.; Wyatt, T. R.; Xie, Y.; Yamada, R.; Yang, S.; Yasuda, T.; Yatsunenko, Y. A.; Ye, W.; Ye, Z.; Yin, H.; Yip, K.; Youn, S. W.; Yu, J. M.; Zennamo, J.; Zhao, T. G.; Zhou, B.; Zhu, J.; Zielinski, M.; Zieminska, D.; Zivkovic, L.; D0 Collaboration

    2015-07-01

    We present a measurement of the fundamental parameter of the standard model, the weak mixing angle sin2θeffℓ which determines the relative strength of weak and electromagnetic interactions, in p p ¯ →Z /γ*→e+e- events at a center of mass energy of 1.96 TeV, using data corresponding to 9.7 fb-1 of integrated luminosity collected by the D0 detector at the Fermilab Tevatron. The effective weak mixing angle is extracted from the forward-backward charge asymmetry as a function of the invariant mass around the Z boson pole. The measured value of sin2θeffℓ =0.23147 ±0.00047 is the most precise measurement from light quark interactions to date, with a precision close to the best LEP and SLD results.

  20. Measurement of the η- η' mixing angle in π - and K - beams with the GAMS-4 π Spectrometer

    NASA Astrophysics Data System (ADS)

    Donskov, S. V.; Kolosov, V. N.; Lednev, A. A.; Mikhailov, Yu. V.; Polyakov, V. A.; Samoylenko, V. D.; Khaustov, G. V.

    2013-10-01

    The η- η' mixing angle has been measured with the GAMS-4 π spectrometer in a high statistics experiment. η' and η mesons were generated with charge-exchange reactions in 32.5 GeV/c π - and K - beams. Using both π - and K - beams allows the study of the | η q > and | η s > components of the meson wave function. The cross section ratio at t'=0 (GeV/c)2 in the π - beam is R π ( η'/ η)=0.54±0.04, and the mixing angle ϕ P =(36.3±1.0)∘. For the K - beam the ratio is R K ( η'/ η)=1.27±0.15. It was found that the gluonium content in η' is sin2 ϕ G =0.17±0.07.

  1. Measurement of the Effective Weak Mixing Angle in pp[over ¯]→Z/γ^{*}→e^{+}e^{-} Events.

    PubMed

    Abazov, V M; Abbott, B; Acharya, B S; Adams, M; Adams, T; Agnew, J P; Alexeev, G D; Alkhazov, G; Alton, A; Askew, A; Atkins, S; Augsten, K; Avila, C; Badaud, F; Bagby, L; Baldin, B; Bandurin, D V; Banerjee, S; Barberis, E; Baringer, P; Bartlett, J F; Bassler, U; Bazterra, V; Bean, A; Begalli, M; Bellantoni, L; Beri, S B; Bernardi, G; Bernhard, R; Bertram, I; Besançon, M; Beuselinck, R; Bhat, P C; Bhatia, S; Bhatnagar, V; Blazey, G; Blessing, S; Bloom, K; Boehnlein, A; Boline, D; Boos, E E; Borissov, G; Borysova, M; Brandt, A; Brandt, O; Brock, R; Bross, A; Brown, D; Bu, X B; Buehler, M; Buescher, V; Bunichev, V; Burdin, S; Buszello, C P; Camacho-Pérez, E; Casey, B C K; Castilla-Valdez, H; Caughron, S; Chakrabarti, S; Chan, K M; Chandra, A; Chapon, E; Chen, G; Cho, S W; Choi, S; Choudhary, B; Cihangir, S; Claes, D; Clutter, J; Cooke, M; Cooper, W E; Corcoran, M; Couderc, F; Cousinou, M-C; Cutts, D; Das, A; Davies, G; de Jong, S J; De La Cruz-Burelo, E; Déliot, F; Demina, R; Denisov, D; Denisov, S P; Desai, S; Deterre, C; DeVaughan, K; Diehl, H T; Diesburg, M; Ding, P F; Dominguez, A; Dubey, A; Dudko, L V; Duperrin, A; Dutt, S; Eads, M; Edmunds, D; Ellison, J; Elvira, V D; Enari, Y; Evans, H; Evdokimov, V N; Fauré, A; Feng, L; Ferbel, T; Fiedler, F; Filthaut, F; Fisher, W; Fisk, H E; Fortner, M; Fox, H; Fuess, S; Garbincius, P H; Garcia-Bellido, A; García-González, J A; Gavrilov, V; Geng, W; Gerber, C E; Gershtein, Y; Ginther, G; Gogota, O; Golovanov, G; Grannis, P D; Greder, S; Greenlee, H; Grenier, G; Gris, Ph; Grivaz, J-F; Grohsjean, A; Grünendahl, S; Grünewald, M W; Guillemin, T; Gutierrez, G; Gutierrez, P; Haley, J; Han, L; Harder, K; Harel, A; Hauptman, J M; Hays, J; Head, T; Hebbeker, T; Hedin, D; Hegab, H; Heinson, A P; Heintz, U; Hensel, C; Heredia-De La Cruz, I; Herner, K; Hesketh, G; Hildreth, M D; Hirosky, R; Hoang, T; Hobbs, J D; Hoeneisen, B; Hogan, J; Hohlfeld, M; Holzbauer, J L; Howley, I; Hubacek, Z; Hynek, V; Iashvili, I; Ilchenko, Y; Illingworth, R; Ito, A S; Jabeen, S; Jaffré, M; Jayasinghe, A; Jeong, M S; Jesik, R; Jiang, P; Johns, K; Johnson, E; Johnson, M; Jonckheere, A; Jonsson, P; Joshi, J; Jung, A W; Juste, A; Kajfasz, E; Karmanov, D; Katsanos, I; Kaur, M; Kehoe, R; Kermiche, S; Khalatyan, N; Khanov, A; Kharchilava, A; Kharzheev, Y N; Kiselevich, I; Kohli, J M; Kozelov, A V; Kraus, J; Kumar, A; Kupco, A; Kurča, T; Kuzmin, V A; Lammers, S; Lebrun, P; Lee, H S; Lee, S W; Lee, W M; Lei, X; Lellouch, J; Li, D; Li, H; Li, L; Li, Q Z; Lim, J K; Lincoln, D; Linnemann, J; Lipaev, V V; Lipton, R; Liu, H; Liu, Y; Lobodenko, A; Lokajicek, M; Lopes de Sa, R; Luna-Garcia, R; Lyon, A L; Maciel, A K A; Madar, R; Magaña-Villalba, R; Malik, S; Malyshev, V L; Mansour, J; Martínez-Ortega, J; McCarthy, R; McGivern, C L; Meijer, M M; Melnitchouk, A; Menezes, D; Mercadante, P G; Merkin, M; Meyer, A; Meyer, J; Miconi, F; Mondal, N K; Mulhearn, M; Nagy, E; Narain, M; Nayyar, R; Neal, H A; Negret, J P; Neustroev, P; Nguyen, H T; Nunnemann, T; Orduna, J; Osman, N; Osta, J; Pal, A; Parashar, N; Parihar, V; Park, S K; Partridge, R; Parua, N; Patwa, A; Penning, B; Perfilov, M; Peters, Y; Petridis, K; Petrillo, G; Pétroff, P; Pleier, M-A; Podstavkov, V M; Popov, A V; Prewitt, M; Price, D; Prokopenko, N; Qian, J; Quadt, A; Quinn, B; Ratoff, P N; Razumov, I; Ripp-Baudot, I; Rizatdinova, F; Rominsky, M; Ross, A; Royon, C; Rubinov, P; Ruchti, R; Sajot, G; Sánchez-Hernández, A; Sanders, M P; Santos, A S; Savage, G; Savitskyi, M; Sawyer, L; Scanlon, T; Schamberger, R D; Scheglov, Y; Schellman, H; Schwanenberger, C; Schwienhorst, R; Sekaric, J; Severini, H; Shabalina, E; Shary, V; Shaw, S; Shchukin, A A; Simak, V; Skubic, P; Slattery, P; Smirnov, D; Snow, G R; Snow, J; Snyder, S; Söldner-Rembold, S; Sonnenschein, L; Soustruznik, K; Stark, J; Stoyanova, D A; Strauss, M; Suter, L; Svoisky, P; Titov, M; Tokmenin, V V; Tsai, Y-T; Tsybychev, D; Tuchming, B; Tully, C; Uvarov, L; Uvarov, S; Uzunyan, S; Van Kooten, R; van Leeuwen, W M; Varelas, N; Varnes, E W; Vasilyev, I A; Verkheev, A Y; Vertogradov, L S; Verzocchi, M; Vesterinen, M; Vilanova, D; Vokac, P; Wahl, H D; Wang, M H L S; Warchol, J; Watts, G; Wayne, M; Weichert, J; Welty-Rieger, L; Williams, M R J; Wilson, G W; Wobisch, M; Wood, D R; Wyatt, T R; Xie, Y; Yamada, R; Yang, S; Yasuda, T; Yatsunenko, Y A; Ye, W; Ye, Z; Yin, H; Yip, K; Youn, S W; Yu, J M; Zennamo, J; Zhao, T G; Zhou, B; Zhu, J; Zielinski, M; Zieminska, D; Zivkovic, L

    2015-07-24

    We present a measurement of the fundamental parameter of the standard model, the weak mixing angle sin^{2}θ_{eff}^{ℓ} which determines the relative strength of weak and electromagnetic interactions, in pp[over ¯]→Z/γ^{*}→e^{+}e^{-} events at a center of mass energy of 1.96 TeV, using data corresponding to 9.7 fb^{-1} of integrated luminosity collected by the D0 detector at the Fermilab Tevatron. The effective weak mixing angle is extracted from the forward-backward charge asymmetry as a function of the invariant mass around the Z boson pole. The measured value of sin^{2}θ_{eff}^{ℓ}=0.23147±0.00047 is the most precise measurement from light quark interactions to date, with a precision close to the best LEP and SLD results. PMID:26252676

  2. Measurement of the Effective Weak Mixing Angle inpp¯→Z/γ*→e+e-Events

    DOE PAGESBeta

    Abazov, V.  M.; Abbott, B.; Acharya, B.  S.; Adams, M.; Adams, T.; Agnew, J.  P.; Alexeev, G.  D.; Alkhazov, G.; Alton, A.; Askew, A.; et al

    2015-07-22

    We present a measurement of the fundamental parameter of the standard model, the weak mixing angle sin2θℓeff which determines the relative strength of weak and electromagnetic interactions, in pp¯→Z/γ*→e+e- events at a center of mass energy of 1.96 TeV, using data corresponding to 9.7 fb-1 of integrated luminosity collected by the D0 detector at the Fermilab Tevatron. The effective weak mixing angle is extracted from the forward-backward charge asymmetry as a function of the invariant mass around the Z boson pole. The measured value of sin2θℓeff=0.23147±0.00047 is the most precise measurement from light quark interactions to date, with a precisionmore » close to the best LEP and SLD results.« less

  3. Small-angle neutron scattering study of the structure of mixed micellar solutions based on nonionic and two cationic surfactants

    NASA Astrophysics Data System (ADS)

    Rajewska, A.; Medrzycka, K.; Hallmann, E.

    2014-01-01

    The aggregation in mixed water systems based on nonionic surfactant, i.e., heptaethylene glycol monotetradecyl ether (C14E7), and cationic surfactants, i.e., cetyltrimethylammonium bromide (CTAB) and cetyltrimethylammonium chloride (CTAC), has been investigated using the small-angle neutron scattering method. The preliminary results of the study of the behavior of C14E7 aqueous solutions (for a concentration of 0.17%) when adding various small amounts of classical cationic surfactants (CTAB and CTAC) have been presented.

  4. A Next-Generation Sequencing Data Analysis Pipeline for Detecting Unknown Pathogens from Mixed Clinical Samples and Revealing Their Genetic Diversity

    PubMed Central

    Gong, Yu-Nong; Chen, Guang-Wu; Yang, Shu-Li; Lee, Ching-Ju; Shih, Shin-Ru; Tsao, Kuo-Chien

    2016-01-01

    Forty-two cytopathic effect (CPE)-positive isolates were collected from 2008 to 2012. All isolates could not be identified for known viral pathogens by routine diagnostic assays. They were pooled into 8 groups of 5–6 isolates to reduce the sequencing cost. Next-generation sequencing (NGS) was conducted for each group of mixed samples, and the proposed data analysis pipeline was used to identify viral pathogens in these mixed samples. Polymerase chain reaction (PCR) or enzyme-linked immunosorbent assay (ELISA) was individually conducted for each of these 42 isolates depending on the predicted viral types in each group. Two isolates remained unknown after these tests. Moreover, iteration mapping was implemented for each of these 2 isolates, and predicted human parechovirus (HPeV) in both. In summary, our NGS pipeline detected the following viruses among the 42 isolates: 29 human rhinoviruses (HRVs), 10 HPeVs, 1 human adenovirus (HAdV), 1 echovirus and 1 rotavirus. We then focused on the 10 identified Taiwanese HPeVs because of their reported clinical significance over HRVs. Their genomes were assembled and their genetic diversity was explored. One novel 6-bp deletion was found in one HPeV-1 virus. In terms of nucleotide heterogeneity, 64 genetic variants were detected from these HPeVs using the mapped NGS reads. Most importantly, a recombination event was found between our HPeV-3 and a known HPeV-4 strain in the database. Similar event was detected in the other HPeV-3 strains in the same clade of the phylogenetic tree. These findings demonstrated that the proposed NGS data analysis pipeline identified unknown viruses from the mixed clinical samples, revealed their genetic identity and variants, and characterized their genetic features in terms of viral evolution. PMID:26986479

  5. A Next-Generation Sequencing Data Analysis Pipeline for Detecting Unknown Pathogens from Mixed Clinical Samples and Revealing Their Genetic Diversity.

    PubMed

    Gong, Yu-Nong; Chen, Guang-Wu; Yang, Shu-Li; Lee, Ching-Ju; Shih, Shin-Ru; Tsao, Kuo-Chien

    2016-01-01

    Forty-two cytopathic effect (CPE)-positive isolates were collected from 2008 to 2012. All isolates could not be identified for known viral pathogens by routine diagnostic assays. They were pooled into 8 groups of 5-6 isolates to reduce the sequencing cost. Next-generation sequencing (NGS) was conducted for each group of mixed samples, and the proposed data analysis pipeline was used to identify viral pathogens in these mixed samples. Polymerase chain reaction (PCR) or enzyme-linked immunosorbent assay (ELISA) was individually conducted for each of these 42 isolates depending on the predicted viral types in each group. Two isolates remained unknown after these tests. Moreover, iteration mapping was implemented for each of these 2 isolates, and predicted human parechovirus (HPeV) in both. In summary, our NGS pipeline detected the following viruses among the 42 isolates: 29 human rhinoviruses (HRVs), 10 HPeVs, 1 human adenovirus (HAdV), 1 echovirus and 1 rotavirus. We then focused on the 10 identified Taiwanese HPeVs because of their reported clinical significance over HRVs. Their genomes were assembled and their genetic diversity was explored. One novel 6-bp deletion was found in one HPeV-1 virus. In terms of nucleotide heterogeneity, 64 genetic variants were detected from these HPeVs using the mapped NGS reads. Most importantly, a recombination event was found between our HPeV-3 and a known HPeV-4 strain in the database. Similar event was detected in the other HPeV-3 strains in the same clade of the phylogenetic tree. These findings demonstrated that the proposed NGS data analysis pipeline identified unknown viruses from the mixed clinical samples, revealed their genetic identity and variants, and characterized their genetic features in terms of viral evolution. PMID:26986479

  6. Effect of angle of incidence on self-mixing laser Doppler velocimeter and optimization of the system

    NASA Astrophysics Data System (ADS)

    Huang, Wei; Gui, Huaqiao; Lu, Liang; Xie, Jianping; Ming, Hai; He, Deyong; Wang, Huanqin; Zhao, Tianpeng

    2008-03-01

    Based on the theory of speckle and self-mixing interference in laser-diode, three-facet cavity model is introduced to analyze laser Doppler effect based on self-mixing interference in the case of a rough surface, and numerical solution of the signal is obtained. Simulation results of speckle-modulated Doppler signal based on self-mixing effect and tracking accuracy at different incident angles are given using parameters employed in the experiment. Simulation results indicate incident angle of around 30 is most suitable when both tracking accuracy and signal amplitude are considered. Experimental waveforms agree well with simulation results, and similar conclusions as simulation predictions about changing trend of tracking accuracies of the system at different incident angles can be made. Combining with difference frequency analog phase-lock loop (PLL) technique and appropriate sampling time, a laser Doppler velocimeter with tracking accuracy better than 1.3% in the range of 10-470 mm/s is realized.

  7. Combined effects of the in-plane orientation angle and the loading angle on the dynamic enhancement of honeycombs under mixed shear-compression loading

    NASA Astrophysics Data System (ADS)

    Tounsi, R.; Markiewicz, E.; Haugou, G.; Chaari, F.; Zouari, B.

    2016-04-01

    The combined effect of the loading angle (ψ) and the in-plane orientation angle (β) on the dynamic enhancement of aluminium alloy honeycombs is investigated. Experimental results are analysed on the crushing surfaces (initial peak and average crushing forces). A significant effect of the loading angle is reported. The dynamic enhancement rate depends on the loading angle until a critical loading angle (ψ critical ). Beyond, a negative dynamic enhancement rate is observed. Concerning the in-plane orientation angle β effect, it depends on the loading angle ψ under quasi-static conditions. Under dynamic conditions, a significant effect is reported independently of the loading angle ψ. Therefore, the dynamic enhancement rate depends on the combined effects of ψ and β angles. A global analysis of the buckling mechanisms allowed us to explain the combined effect of ψ and β angles on the initial peak force. The collapse mechanisms analysis explain the negative dynamic enhancement rate for large loading angles.

  8. Combined effects of the in-plane orientation angle and the loading angle on the dynamic enhancement of honeycombs under mixed shear-compression loading

    NASA Astrophysics Data System (ADS)

    Tounsi, R.; Markiewicz, E.; Haugou, G.; Chaari, F.; Zouari, B.

    2016-03-01

    The combined effect of the loading angle (ψ) and the in-plane orientation angle (β) on the dynamic enhancement of aluminium alloy honeycombs is investigated. Experimental results are analysed on the crushing surfaces (initial peak and average crushing forces). A significant effect of the loading angle is reported. The dynamic enhancement rate depends on the loading angle until a critical loading angle (ψ critical ). Beyond, a negative dynamic enhancement rate is observed. Concerning the in-plane orientation angle β effect, it depends on the loading angle ψ under quasi-static conditions. Under dynamic conditions, a significant effect is reported independently of the loading angle ψ. Therefore, the dynamic enhancement rate depends on the combined effects of ψ and β angles. A global analysis of the buckling mechanisms allowed us to explain the combined effect of ψ and β angles on the initial peak force. The collapse mechanisms analysis explain the negative dynamic enhancement rate for large loading angles.

  9. Effect of Jet Injection Angle and Number of Jets on Mixing and Emissions From a Reacting Crossflow at Atmospheric Pressure

    NASA Technical Reports Server (NTRS)

    St.John, D.; Samuelsen, G. S.

    2000-01-01

    The mixing of air jets into hot, fuel-rich products of a gas turbine primary zone is an important step in staged combustion. Often referred to as "quick quench," the mixing occurs with chemical conversion and substantial heat release. An experiment has been designed to simulate and study this process, and the effect of varying the entry angle (0 deg, 22.5 deg and 45 deg from normal) and number of the air jets (7, 9, and 11) into the main flow, while holding the jet-to-crossflow mass-low ratio, MR, and momentum-flux ratio, J, constant (MR = 2.5;J = 25). The geometry is a crossflow confined in a cylindrical duct with side-wall injection of jets issuing from orifices equally spaced around the perimeter. A specially designed reactor, operating on propane, presents a uniform mixture to a module containing air jet injection tubes that can be changed to vary orifice geometry. Species concentrations of O2, CO, CO2, NO(x) and HC were obtained one duct diameter upstream (in the rich zone), and primarily one duct radius downstream. From this information, penetration of the jet, the spatial extent of chemical reaction, mixing, and the optimum jet injection angle and number of jets can be deduced.

  10. Comparing symmetry restoration trends for meson masses and mixing angles in the QCD-like three quark flavor models

    NASA Astrophysics Data System (ADS)

    Tiwari, Vivek Kumar

    2013-10-01

    We are computing the modifications for the scalar and pseudoscalar meson masses and mixing angles due to the proper accounting of fermionic vacuum fluctuation in the framework of the generalized 2+1 flavor quark meson model and the Polyakov loop augmented quark meson model (PQM). The renormalized contribution of the divergent fermionic vacuum fluctuation at one loop level makes these models effective QCD-like models. It has been explicitly shown that analytical expressions for the model parameters, meson masses, and mixing angles do not depend on any arbitrary renormalization scale. We have investigated how the incorporation of fermionic vacuum fluctuation in quark meson and PQM models qualitatively and quantitatively affects the convergence in the masses of the chiral partners in pseudoscalar (π,η,η',K) and scalar (σ,a0,f0,κ) meson nonets as the temperature is varied on the reduced temperature scale. Comparison of present results in the quark meson model with vacuum term and the PQM model with vacuum term with the already existing calculations in the bare 2+1 quark meson and PQM models shows that the restoration of chiral symmetry becomes smoother due to the influence of the fermionic vacuum term. We find that the melting of the strange condensate registers a significant increase in the presence of the fermionic vacuum term and its highest melting is found in the PQM model with vacuum term. The role of the UA(1) anomaly in determining the isoscalar masses and mixing angles for the pseudoscalar (η and η') and scalar (σ and f0) meson complex has also been significantly modified due to the fermionic vacuum correction. In its influence, the interplay of chiral symmetry restoration and the setting up of the UA(1) restoration trends have also been shown to be significantly modified.

  11. Mixed convection cooling of a cylinder using slot jet impingement at different circumferential angles

    NASA Astrophysics Data System (ADS)

    Naderipour, S.; Yousefi, T.; Ashjaee, M.; Naylor, D.

    2015-08-01

    An experimental study using Mach-Zehnder interferometer has been carried out to investigate the heat transfer from an isothermal horizontal circular cylinder, which is exposed to an air slot jet at different angles of jet impingement. A square edged nozzle is mounted parallel with the cylinder axis and jet flow impinges on the side of the cylinder at angles Θ = 0°, 30°, 60° and 90°. The Reynolds number varied from 240 to 1900 while the Grashof number and slot- to cylinder-spacing is kept constant at Gr = 22,300 and H/w = 7 respectively. The Richardson number varied from 0.006 to 0.4. The flow field is greatly influenced by the slot exit velocity and the buoyancy force due to density change. The local Nusselt number around the cylinder has been calculated using the infinite fringe interferograms at 10° intervals. Average Nusselt number shows that heat transfer is decreased when the angle of jet impingement is increased .

  12. Radiative symmetry breaking, fermion masses and mixing angles, and large Yukawa couplings in N - 1 SUSY-GUTS

    SciTech Connect

    Anderson, G.W.

    1992-12-01

    The effect of large third generation Yukawa couplings on radiative electroweak symmetry breaking in N = 1 SUSY-GUTS is reported. Limits on tan {beta}, and on the amount of fine tuning necessary for consistent symmetry breaking in the MSSM are derived. Predictions for fermion masses and mixing angles from GUT scale textures are also discussed. The effect of large Yukawa couplings on the running of the DHR texture is used to determine limits on the top quark valid for all values of tan {beta}.

  13. Flavor identification of astronomical high energy neutrinos and the accuracy of mixing angles

    SciTech Connect

    Hwang, Ggyoung-Riun; Siyeon, Kim

    2008-11-23

    Typical initial neutrino fluxes from pion decays may be different depending on energy, since the muon decays can be excluded due to the electromagnetic energy loss. However, the specification of the initial flux ratio is limited by the accuracy of neutrino mixing parameters. We will discuss the expected measurement of relative flavors at future neutrino telescopes, focusing on the ambiguity in current neutrino parameters.

  14. Large neutrino mixing angle θ13MNS and quark-lepton mass ratios in unified flavor models

    NASA Astrophysics Data System (ADS)

    Antusch, Stefan; Maurer, Vinzenz

    2011-12-01

    We analyze how a large value of the leptonic mixing angle θ13MNS can be generated via charged lepton corrections in unified flavor models, using novel combinations of Clebsch-Gordan factors for obtaining viable quark-lepton mass ratios for the first two families. We discuss how these Clebsch-Gordan factors affect the relations between down-type quark mixing and charged lepton mixing in SU(5) grand unified theories and Pati-Salam unified models and calculate the resulting possible predictions for θ13MNS for models with θ13ν, θ13e≪θ12e. While symmetric mass matrices with zero (1, 1) elements always lead to comparatively small θ13MNS≈2.8°, we find novel combinations of Clebsch-Gordan factors for nonsymmetric mass matrices which can yield θ13MNS≈5.1°, 6.1°, 7.6°, or 10.1°, as favored by the current experimental hints for large θ13MNS. We discuss applications to classes of models with underlying tribimaximal or bimaximal mixing in the neutrino sector.

  15. Spontaneous R-parity violation: Lightest neutralino decays and neutrino mixing angles at future colliders

    NASA Astrophysics Data System (ADS)

    Hirsch, M.; Vicente, A.; Porod, W.

    2008-04-01

    We study the decays of the lightest supersymmetric particle (LSP) in models with spontaneously broken R-parity. We focus on the two cases that the LSP is either a bino or a neutral singlet lepton. We work out the most important phenomenological differences between these two scenarios and discuss also how they might be distinguished from explicit R-parity breaking models. In both cases we find that certain ratios of decay branching ratios are correlated with either the solar or the atmospheric (and reactor) neutrino angle. The hypothesis that spontaneous R-parity violation is the source of the observed neutrino masses is therefore potentially testable at the LHC.

  16. Race Unknown

    ERIC Educational Resources Information Center

    Gray, Katti

    2011-01-01

    Bryan Lee, a senior at the University of California, Irvine, has noticed that some of his classmates adamantly declare their multiracial heritage while others choose not to identify themselves as being any particular ethnicity. The half-Korean, half-White biomedical engineering major is co-president of the university's Mixed Students Organization…

  17. A PRECISION MEASUREMENT OF THE NEUTRINO MIXING ANGLE THETA (SUB 13) USING REACTOR ANTINEUTRINOS AT DAYA BAY.

    SciTech Connect

    KETTELL, S.; ET AL.

    2006-10-16

    This document describes the design of the Daya Bay reactor neutrino experiment. Recent discoveries in neutrino physics have shown that the Standard Model of particle physics is incomplete. The observation of neutrino oscillations has unequivocally demonstrated that the masses of neutrinos are nonzero. The smallness of the neutrino masses (<2 eV) and the two surprisingly large mixing angles measured have thus far provided important clues and constraints to extensions of the Standard Model. The third mixing angle, {delta}{sub 13}, is small and has not yet been determined; the current experimental bound is sin{sup 2} 2{theta}{sub 13} < 0.17 at 90% confidence level (from Chooz) for {Delta}m{sub 31}{sup 2} = 2.5 x 10{sup -3} eV{sup 2}. It is important to measure this angle to provide further insight on how to extend the Standard Model. A precision measurement of sin{sup 2} 2{theta}{sub 13} using nuclear reactors has been recommended by the 2004 APS Multi-divisional Study on the Future of Neutrino Physics as well as a recent Neutrino Scientific Assessment Group (NUSAG) report. We propose to perform a precision measurement of this mixing angle by searching for the disappearance of electron antineutrinos from the nuclear reactor complex in Daya Bay, China. A reactor-based determination of sin{sup 2} 2{theta}{sub 13} will be vital in resolving the neutrino-mass hierarchy and future measurements of CP violation in the lepton sector because this technique cleanly separates {theta}{sub 13} from CP violation and effects of neutrino propagation in the earth. A reactor-based determination of sin{sup 2} 2{theta}{sub 13} will provide important, complementary information to that from long-baseline, accelerator-based experiments. The goal of the Daya Bay experiment is to reach a sensitivity of 0.01 or better in sin{sup 2} 2{theta}{sub 13} at 90% confidence level.

  18. Measurement of B⁰→J/ψη(') and constraint on the η-η' mixing angle

    SciTech Connect

    Chang, M.-C.; Duh, Y.-C.; Lin, J.-Y.; Adachi, I.; Adamczyk, K.; Aihara, H.; Asner, D. M.; Aushev, T.; Bakich, A. M.; Bhardwaj, V.; Bhuyan, B.; Bondar, A.; Bozek, A.; Bračko, M.; Brodzicka, J.; Browder, T. E.; Chang, P.; Chen, A.; Chen, K.-F.; Chen, P.; Cheon, B. G.; Chilikin, K.; Chistov, R.; Cho, I.-S.; Choi, S.-K.; Choi, Y.; Dalseno, J.; Doležal, Z.; Drásal, Z.; Drutskoy, A.; Eidelman, S.; Fast, J. E.; Gaur, V.; Garmash, A.; Goh, Y. M.; Golob, B.; Haba, J.; Hara, T.; Hayasaka, K.; Hayashii, H.; Horii, Y.; Hoshi, Y.; Hou, W.-S.; Hyun, H. J.; Iijima, T.; Ishikawa, A.; Itoh, R.; Iwabuchi, M.; Iwasaki, Y.; Iwashita, T.; Julius, T.; Katayama, N.; Kawasaki, T.; Kim, H. O.; Kim, J. B.; Kim, K. T.; Kim, M. J.; Kim, Y. J.; Kinoshita, K.; Ko, B. R.; Koblitz, S.; Kodyš, P.; Korpar, S.; Križan, P.; Krokovny, P.; Kuhr, T.; Kumar, R.; Kumita, T.; Kwon, Y.-J.; Lange, J. S.; Lee, S.-H.; Li, J.; Li, Y.; Libby, J.; Liu, C.; Liu, Z. Q.; Louvot, R.; McOnie, S.; Miyabayashi, K.; Miyata, H.; Miyazaki, Y.; Mizuk, R.; Mohanty, G. B.; Moll, A.; Muramatsu, N.; Nagasaka, Y.; Nakamura, I.; Nakano, E.; Nakao, M.; Nakazawa, H.; Natkaniec, Z.; Nishida, S.; Nishimura, K.; Nitoh, O.; Ogawa, S.; Ohshima, T.; Okuno, S.; Olsen, S. L.; Pakhlova, G.; Park, C. W.; Park, K. S.; Pedlar, T. K.; Peng, T.; Pestotnik, R.; Petrič, M.; Piilonen, L. E.; Röhrken, M.; Ryu, S.; Sahoo, H.; Sakai, K.; Sakai, Y.; Schneider, O.; Schwanda, C.; Schwartz, A. J.; Senyo, K.; Sevior, M. E.; Shapkin, M.; Shen, C. P.; Shibata, T.-A.; Shiu, J.-G.; Sibidanov, A.; Simon, F.; Smerkol, P.; Sohn, Y.-S.; Sokolov, A.; Solovieva, E.; Stanič, S.; Starič, M.; Sumihama, M.; Sumiyoshi, T.; Tanaka, S.; Tatishvili, G.; Teramoto, Y.; Uchida, M.; Uehara, S.; Uglov, T.; Unno, Y.; Uno, S.; Urquijo, P.; Usov, Y.; Varner, G.; Vorobyev, V.; Wang, C. H.; Wang, M.-Z.; Wang, P.; Watanabe, Y.; Williams, K. M.; Won, E.; Yamamoto, H.; Yamashita, Y.; Yuan, C. Z.; Yusa, Y.; Zhang, Z. P.; Zhilich, V.; Zhulanov, V.; Zupanc, A.

    2012-05-04

    We measure the branching fractions of B⁰→J/ψη(') decays with the complete Belle data sample of 772×10⁶ BB¯¯¯ events collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e⁺e⁻ collider. The results for the branching fractions are: B(B⁰→J/ψη)=(12.3±1.811.7±0.7)×10⁻⁶ and B(B⁰→J/ψη')<7.4×10⁻⁶ at 90% confidence level. The η-η' mixing angle is constrained to be less than 42.2° at 90% confidence level.

  19. Measurement of B⁰→J/ψη(') and constraint on the η-η' mixing angle

    DOE PAGESBeta

    Chang, M.-C.; Duh, Y.-C.; Lin, J.-Y.; Adachi, I.; Adamczyk, K.; Aihara, H.; Asner, D. M.; Aushev, T.; Bakich, A. M.; Bhardwaj, V.; et al

    2012-05-04

    We measure the branching fractions of B⁰→J/ψη(') decays with the complete Belle data sample of 772×10⁶ BB¯¯¯ events collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e⁺e⁻ collider. The results for the branching fractions are: B(B⁰→J/ψη)=(12.3±1.811.7±0.7)×10⁻⁶ and B(B⁰→J/ψη')<7.4×10⁻⁶ at 90% confidence level. The η-η' mixing angle is constrained to be less than 42.2° at 90% confidence level.

  20. Calculation of the flow field including boundary layer effects for supersonic mixed compression inlets at angles of attack

    NASA Technical Reports Server (NTRS)

    Vadyak, J.; Hoffman, J. D.

    1982-01-01

    The flow field in supersonic mixed compression aircraft inlets at angle of attack is calculated. A zonal modeling technique is employed to obtain the solution which divides the flow field into different computational regions. The computational regions consist of a supersonic core flow, boundary layer flows adjacent to both the forebody/centerbody and cowl contours, and flow in the shock wave boundary layer interaction regions. The zonal modeling analysis is described and some computational results are presented. The governing equations for the supersonic core flow form a hyperbolic system of partial differential equations. The equations for the characteristic surfaces and the compatibility equations applicable along these surfaces are derived. The characteristic surfaces are the stream surfaces, which are surfaces composed of streamlines, and the wave surfaces, which are surfaces tangent to a Mach conoid. The compatibility equations are expressed as directional derivatives along streamlines and bicharacteristics, which are the lines of tangency between a wave surface and a Mach conoid.

  1. Mixed-mode I and II fatigue threshold and crack deflection angle in SiCp/2024Al composite

    SciTech Connect

    Liu, P.; Wang, Z.

    1996-04-15

    In the past decade, extensive studies were made on fatigue crack propagation behavior in particle or whisker reinforced metal-matrix composites (MMCs) with specific emphasis on the pure mode I fatigue crack growth threshold condition. However, the pure mode I case seldom occurred in practice. In many components cracks are not normal to the maximum principal stress direction and the crack may not grow in the plane of initial crack. Therefore, it is important to study the fatigue behavior under mixed-mode condition. A particle reinforced metal-matrix composite and its matrix alloy were selected for this study. Special attention has been paid to the influence of crack faces friction on the mixed-mode thresholds and crack deflection angle {theta}c. The composite used in the present work is a 15% vol. SiC particulate (nominal size 14 {micro}m) reinforced 2024Al which was produced by casting and extruded at an extrusion ratio of 10:1 into 28 mm diameter rod. Also an unreinforced 2024 Al alloy with a processing history identical to that of the composite was used for comparison.

  2. Impacts of an unknown daytime HONO source on the mixing ratio and budget of HONO, and hydroxyl, hydroperoxyl, and organic peroxy radicals, in the coastal regions of China

    NASA Astrophysics Data System (ADS)

    Tang, Y.; An, J.; Wang, F.; Li, Y.; Qu, Y.; Chen, Y.; Lin, J.

    2015-08-01

    Many field experiments have found high nitrous acid (HONO) mixing ratios in both urban and rural areas during daytime, but these high daytime HONO mixing ratios cannot be explained well by gas-phase production, HONO emissions, and nighttime hydrolysis conversion of nitrogen dioxide (NO2) on aerosols, suggesting that an unknown daytime HONO source (Punknown) could exist. The formula Punknown ≈ 19.60[NO2] · J(NO2) was obtained using observed data from 13 field experiments across the globe. The three additional HONO sources (i.e., the Punknown, nighttime hydrolysis conversion of NO2 on aerosols, and HONO emissions) were coupled into the WRF-Chem model (Weather Research and Forecasting model coupled with Chemistry) to assess the Punknown impacts on the concentrations and budgets of HONO and peroxy (hydroxyl, hydroperoxyl, and organic peroxy) radicals (ROx) (= OH + HO2 + RO2) in the coastal regions of China. Results indicated that the additional HONO sources produced a significant improvement in HONO and OH simulations, particularly in the daytime. High daytime average Punknown values were found in the coastal regions of China, with a maximum of 2.5 ppb h-1 in the Beijing-Tianjin-Hebei region. The Punknown produced a 60-250 % increase of OH, HO2, and RO2 near the ground in the major cities of the coastal regions of China, and a 5-48 % increase of OH, HO2, and RO2 in the daytime meridional-mean mixing ratios within 1000 m above the ground. When the three additional HONO sources were included, the photolysis of HONO was the second most important source in the OH production rate in Beijing, Shanghai, and Guangzhou before 10:00 LST with a maximum of 3.72 ppb h-1 and a corresponding Punknown contribution of 3.06 ppb h-1 in Beijing, whereas the reaction of HO2 + NO (nitric oxide) was dominant after 10:00 LST with a maximum of 9.38 ppb h-1 and a corresponding Punknown contribution of 7.23 ppb h-1 in Beijing. The whole ROx cycle was accelerated by the three additional HONO sources, especially the Punknown. The daytime average OH production rate was enhanced by 0.67 due to the three additional HONO sources; [0.64], due to the Punknown, to 4.32 [3.86] ppb h-1, via the reaction of HO2 + NO, and by 0.49 [0.47] to 1.86 [1.86] ppb h-1, via the photolysis of HONO. The OH daytime average loss rate was enhanced by 0.58 [0.55] to 2.03 [1.92] ppb h-1, via the reaction of OH + NO2, and by 0.31 [0.28] to 1.78 [1.64] ppb h-1, via the reaction of OH + CO (carbon monoxide) in Beijing, Shanghai, and Guangzhou. Similarly, the three additional HONO sources produced an increase of 0.31 [0.28] (with a corresponding Punknown contribution) to 1.78 [1.64] ppb h-1, via the reaction of OH + CO, and 0.10 [0.09] to 0.63 [0.59] ppb h-1, via the reaction of CH3O2 (methylperoxy radical) + NO in the daytime average HO2 production rate, and 0.67 [0.61] to 4.32 [4.27] ppb h-1, via the reaction of HO2 + NO in the daytime average HO2 loss rate in Beijing, Shanghai, and Guangzhou. The above results suggest that the Punknown considerably enhanced the ROx concentrations and accelerated ROx cycles in the coastal regions of China, and could produce significant increases in concentrations of inorganic aerosols and secondary organic aerosols and further aggravate haze events in these regions.

  3. Small-angle neutron scattering study of the structure of mixed micellar solutions based on heptaethylene glycol monotetradecyl ether and cesium dodecyl sulfate

    NASA Astrophysics Data System (ADS)

    Rajewska, A.; Medrzycka, K.; Hallmann, E.; Soloviov, D. V.

    2016-01-01

    The micellization in mixed aqueous systems based on a nonionic surfactant, heptaethylene glycol monotetradecyl ether (C14E7), and an anionic surfactant, cesium dodecyl sulfate, has been investigated by small-angle neutron scattering. Preliminary data on the behavior of the C14E7 aqueous solutions (with three concentrations, 0.17, 0.5, and 1%) mixed with a small amount of anionic surfactant, cesium dodecyl sulfate, are reported.

  4. Independent measurement of the neutrino mixing angle θ13 via neutron capture on hydrogen at Daya Bay

    DOE PAGESBeta

    Jaffe, D. E.

    2014-10-03

    A new measurement of the θ13 mixing angle has been obtained at the Daya Bay Reactor Neutrino Experiment via the detection of inverse beta decays tagged by neutron capture on hydrogen. The antineutrino events for hydrogen capture are distinct from those for gadolinium capture with largely different systematic uncertainties, allowing a determination independent of the gadolinium-capture result and an improvement on the precision of the θ13 measurement. With a 217-day antineutrino data set obtained with six antineutrino detectors and from six 2.9 GWth reactors, the rate deficit observed at the far hall is interpreted as sin22θ13=0.083±0.018 in the three-flavor oscillationmore » model. When combined with the gadolinium-capture result from Daya Bay, we obtain sin22θ13=0.089±0.008 as the final result for the six-antineutrino-detector configuration of the Daya Bay experiment.« less

  5. Independent measurement of the neutrino mixing angle θ13 via neutron capture on hydrogen at Daya Bay

    SciTech Connect

    Jaffe, D. E.

    2014-10-03

    A new measurement of the θ13 mixing angle has been obtained at the Daya Bay Reactor Neutrino Experiment via the detection of inverse beta decays tagged by neutron capture on hydrogen. The antineutrino events for hydrogen capture are distinct from those for gadolinium capture with largely different systematic uncertainties, allowing a determination independent of the gadolinium-capture result and an improvement on the precision of the θ13 measurement. With a 217-day antineutrino data set obtained with six antineutrino detectors and from six 2.9 GWth reactors, the rate deficit observed at the far hall is interpreted as sin213=0.083±0.018 in the three-flavor oscillation model. When combined with the gadolinium-capture result from Daya Bay, we obtain sin213=0.089±0.008 as the final result for the six-antineutrino-detector configuration of the Daya Bay experiment.

  6. Reducing radiation dose to the female breast during CT coronary angiography: A simulation study comparing breast shielding, angular tube current modulation, reduced kV, and partial angle protocols using an unknown-location signal-detectability metric

    SciTech Connect

    Rupcich, Franco; Gilat Schmidt, Taly; Badal, Andreu; Popescu, Lucretiu M.; Kyprianou, Iacovos

    2013-08-15

    Purpose: The authors compared the performance of five protocols intended to reduce dose to the breast during computed tomography (CT) coronary angiography scans using a model observer unknown-location signal-detectability metric.Methods: The authors simulated CT images of an anthropomorphic female thorax phantom for a 120 kV reference protocol and five “dose reduction” protocols intended to reduce dose to the breast: 120 kV partial angle (posteriorly centered), 120 kV tube-current modulated (TCM), 120 kV with shielded breasts, 80 kV, and 80 kV partial angle (posteriorly centered). Two image quality tasks were investigated: the detection and localization of 4-mm, 3.25 mg/ml and 1-mm, 6.0 mg/ml iodine contrast signals randomly located in the heart region. For each protocol, the authors plotted the signal detectability, as quantified by the area under the exponentially transformed free response characteristic curve estimator (A-caret{sub FE}), as well as noise and contrast-to-noise ratio (CNR) versus breast and lung dose. In addition, the authors quantified each protocol's dose performance as the percent difference in dose relative to the reference protocol achieved while maintaining equivalent A-caret{sub FE}.Results: For the 4-mm signal-size task, the 80 kV full scan and 80 kV partial angle protocols decreased dose to the breast (80.5% and 85.3%, respectively) and lung (80.5% and 76.7%, respectively) with A-caret{sub FE} = 0.96, but also resulted in an approximate three-fold increase in image noise. The 120 kV partial protocol reduced dose to the breast (17.6%) at the expense of increased lung dose (25.3%). The TCM algorithm decreased dose to the breast (6.0%) and lung (10.4%). Breast shielding increased breast dose (67.8%) and lung dose (103.4%). The 80 kV and 80 kV partial protocols demonstrated greater dose reductions for the 4-mm task than for the 1-mm task, and the shielded protocol showed a larger increase in dose for the 4-mm task than for the 1-mm task. In general, the CNR curves indicate a similar relative ranking of protocol performance as the corresponding A-caret{sub FE} curves, however, the CNR metric overestimated the performance of the shielded protocol for both tasks, leading to corresponding underestimates in the relative dose increases compared to those obtained when using the A-caret{sub FE} metric.Conclusions: The 80 kV and 80 kV partial angle protocols demonstrated the greatest reduction to breast and lung dose, however, the subsequent increase in image noise may be deemed clinically unacceptable. Tube output for these protocols can be adjusted to achieve a more desirable noise level with lesser breast dose savings. Breast shielding increased breast and lung dose when maintaining equivalent A-caret{sub FE}. The results demonstrated that comparisons of dose performance depend on both the image quality metric and the specific task, and that CNR may not be a reliable metric of signal detectability.

  7. Determination of the Higgs CP-mixing angle in the tau decay channels at the LHC including the Drell-Yan background

    NASA Astrophysics Data System (ADS)

    Berge, Stefan; Bernreuther, Werner; Kirchner, Sebastian

    2014-11-01

    We investigate how precisely the CP nature of the 125 GeV Higgs-boson resonance can be unraveled at the LHC in its decays to pairs, . We use a method which allows one to determine the scalar-pseudoscalar Higgs mixing angle in this decay mode. This mixing angle can be extracted from the distribution of a signed angle, denoted by , which we analyze for the major charged-prong decays. For definiteness, we consider Higgs-boson production by gluon fusion at NLO QCD. We take into account also the irreducible background from Drell-Yan production, , at NLO QCD. We compute, for the signal and background reactions, angular and energy correlations of the charged prongs and analyze which type of cuts suppress the Drell-Yan background. An important feature of this background is that its contribution to the distribution of our observable is a flat line, also at NLO QCD. By separating the Drell-Yan events into two different sets, two different non-trivial distributions are obtained. Based on this observation we propose to use these sets for calibration purposes. By Monte Carlo simulation we study also the effect of measurement uncertainties on this distribution. We estimate that the Higgs mixing angle can be determined with our method to a precision of at the high-luminosity LHC (14 TeV) with an integrated luminosity of fb (3 ab).

  8. A mixed problem of plane elasticity theory for a multiply connected domain with partially unknown boundary: the case of a rhombus

    NASA Astrophysics Data System (ADS)

    Odishelidze, Nana; Criado-Aldeanueva, Francisco; Sanchez, J. M.

    2015-10-01

    This paper addresses a problem of plane elasticity theory for a multiply connected domain, whose external boundary is a rhombus and the internal boundary is the required two holes that are symmetric with respect to its diagonals. Absolutely rigid punches with rectilinear bases are applied to each segment of the outer boundary of the given body, and they are under the action of the forces P that apply to their middle points. There is no friction between the surface of the given elastic body and the punches. The boundaries of the unknown holes are free from external loads. Tangential stresses are equal to zero along the entire boundary of the domain, and the normal displacements on the linear parts of the boundary are constant. The shapes of the holes' contours and the stress state of the given body are determined, provided that the tangential normal stress arising at the holes' contours takes a constant value. Such holes are called full-strength holes. Full-strength contours and stress state are found by means of complex analysis. The solution is written in quadratures. Numerical analyses are presented, and the corresponding plots are constructed.

  9. Penguin-mediated B{sub d,s}{yields}VV decays and the B{sub s}-B{sub s} mixing angle

    SciTech Connect

    Descotes-Genon, Sebastien

    2007-10-01

    In this paper, we propose three different strategies to extract the weak mixing angle {phi}{sub s} of the B{sub s} system using penguin-mediated decays into vectors, mainly B{sub s}{yields}K*{sup 0}K*{sup 0}, B{sub s}{yields}{phi}K*{sup 0}, and B{sub s}{yields}{phi}{phi}. We also provide predictions for the longitudinal branching ratio and CP asymmetries of B{sub s}{yields}K*{sup 0}K*{sup 0} using a method that combines QCD factorization with flavor symmetries to relate this decay to its B{sub d} counterpart.

  10. New physics effects in tree-level decays and the precision in the determination of the quark mixing angle γ

    NASA Astrophysics Data System (ADS)

    Brod, Joachim; Lenz, Alexander; Tetlalmatzi-Xolocotzi, Gilberto; Wiebusch, Martin

    2015-08-01

    We critically review the assumption that no new physics is acting in tree-level B -meson decays and study the consequences for the ultimate precision in the direct determination of the Cabibbo-Kobayashi-Maskawa (CKM) angle γ . In our exploratory study we find that sizeable universal new physics contributions, Δ C1 ,2, to the tree-level Wilson coefficients C1 ,2 of the effective Hamiltonian describing weak decays of the b quark are currently not excluded by experimental data. In particular, we find that Im Δ C1 and Im Δ C2 can easily be of order ±10 % without violating any constraints from data. Such a size of new physics effects in C1 and C2 corresponds to an intrinsic uncertainty in the CKM angle γ of the order of |δ γ |≈4 ° , which is slightly below the current experimental precision. The accuracy in the determination of γ can be improved by putting stronger constraints on the tree-level Wilson coefficients, in particular C1. To this end we suggest a more refined theoretical study as well as more precise measurements of the observables that currently provide the strongest bounds on hypothetical new weak phases in C1 and C2. We note that the semileptonic C P asymmetries seem to have the best prospect for improving the bound on the weak phase in C1.

  11. Improved Measurement of B^ \\to\\rho^ \\rho^0 and Determination of the Quark-Mixing Phase Angle~\\alpha

    SciTech Connect

    Aubert, B.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Prencipe, E.; Prudent, X.; Tisserand, V.; Tico, J.Garra; Grauges, E.; Lopez, L.; Palano, A.; Pappagallo, M.; Eigen, G.; Stugu, B.; Sun, L.; Battaglia, M.; Brown, D.N.; Kerth, L.T.; Kolomensky, Yu.G.; Lynch, G.; Osipenkov, I.L.; /Annecy, LAPP /Barcelona U., ECM /INFN, Bari /Bari U. /Bergen U. /LBL, Berkeley /Birmingham U. /Ruhr U., Bochum /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UCLA /UC, Riverside /UC, San Diego /UC, Santa Barbara /UC, Santa Cruz /Caltech /Cincinnati U. /Colorado U. /Colorado State U.

    2009-07-14

    The authors present improved measurements of the branching fraction {Beta}, the longitudinal polarization fraction f{sub L}, and the direct CP asymmetry A{sub CP} in the B meson decay channel B{sup +} {yields} {rho}{sup +}{rho}{sup 0}. The data sample was collected with the BABAR detector at SLAC. The results are {Beta}(B{sup +} {yields} {rho}{sup +}{rho}{sup 0}) = (23.7 {+-} 1.4 {+-} 1.4) x 10{sup -6}, f{sub L} = 0.950 {+-} 0.015 {+-} 0.006, and A{sub CP} = -0.054 {+-} 0.055 {+-} 0.010, where the uncertainties are statistical and systematic, respectively. Based on these results, they perform an isospin analysis and determine the CKM weak phase angle {alpha} to be (92.4{sub -6.5}{sup +6.0}){sup 0}.

  12. Improved measurement of B+ --> rho+ rho0 and determination of the quark-mixing phase angle alpha.

    PubMed

    Aubert, B; Karyotakis, Y; Lees, J P; Poireau, V; Prencipe, E; Prudent, X; Tisserand, V; Garra Tico, J; Grauges, E; Lopez, L; Palano, A; Pappagallo, M; Eigen, G; Stugu, B; Sun, L; Battaglia, M; Brown, D N; Kerth, L T; Kolomensky, Yu G; Lynch, G; Osipenkov, I L; Tackmann, K; Tanabe, T; Hawkes, C M; Soni, N; Watson, A T; Koch, H; Schroeder, T; Asgeirsson, D J; Fulsom, B G; Hearty, C; Mattison, T S; McKenna, J A; Barrett, M; Khan, A; Randle-Conde, A; Blinov, V E; Bukin, A D; Buzykaev, A R; Druzhinin, V P; Golubev, V B; Onuchin, A P; Serednyakov, S I; Skovpen, Yu I; Solodov, E P; Todyshev, K Yu; Bondioli, M; Curry, S; Eschrich, I; Kirkby, D; Lankford, A J; Lund, P; Mandelkern, M; Martin, E C; Stoker, D P; Abachi, S; Buchanan, C; Atmacan, H; Gary, J W; Liu, F; Long, O; Vitug, G M; Yasin, Z; Zhang, L; Sharma, V; Campagnari, C; Hong, T M; Kovalskyi, D; Mazur, M A; Richman, J D; Beck, T W; Eisner, A M; Heusch, C A; Kroseberg, J; Lockman, W S; Martinez, A J; Schalk, T; Schumm, B A; Seiden, A; Winstrom, L O; Cheng, C H; Doll, D A; Echenard, B; Fang, F; Hitlin, D G; Narsky, I; Piatenko, T; Porter, F C; Andreassen, R; Mancinelli, G; Meadows, B T; Mishra, K; Sokoloff, M D; Bloom, P C; Ford, W T; Gaz, A; Hirschauer, J F; Nagel, M; Nauenberg, U; Smith, J G; Wagner, S R; Ayad, R; Soffer, A; Toki, W H; Wilson, R J; Feltresi, E; Hauke, A; Jasper, H; Karbach, M; Merkel, J; Petzold, A; Spaan, B; Wacker, K; Kobel, M J; Nogowski, R; Schubert, K R; Schwierz, R; Volk, A; Bernard, D; Bonneaud, G R; Latour, E; Verderi, M; Clark, P J; Playfer, S; Watson, J E; Andreotti, M; Bettoni, D; Bozzi, C; Calabrese, R; Cecchi, A; Cibinetto, G; Franchini, P; Luppi, E; Negrini, M; Petrella, A; Piemontese, L; Santoro, V; Baldini-Ferroli, R; Calcaterra, A; de Sangro, R; Finocchiaro, G; Pacetti, S; Patteri, P; Peruzzi, I M; Piccolo, M; Rama, M; Zallo, A; Contri, R; Guido, E; Lo Vetere, M; Monge, M R; Passaggio, S; Patrignani, C; Robutti, E; Tosi, S; Chaisanguanthum, K S; Morii, M; Adametz, A; Marks, J; Schenk, S; Uwer, U; Bernlochner, F U; Klose, V; Lacker, H M; Bard, D J; Dauncey, P D; Tibbetts, M; Behera, P K; Chai, X; Charles, M J; Mallik, U; Cochran, J; Crawley, H B; Dong, L; Meyer, W T; Prell, S; Rosenberg, E I; Rubin, A E; Gao, Y Y; Gritsan, A V; Guo, Z J; Arnaud, N; Béquilleux, J; D'Orazio, A; Davier, M; Firmino da Costa, J; Grosdidier, G; Le Diberder, F; Lepeltier, V; Lutz, A M; Pruvot, S; Roudeau, P; Schune, M H; Serrano, J; Sordini, V; Stocchi, A; Wormser, G; Lange, D J; Wright, D M; Bingham, I; Burke, J P; Chavez, C A; Fry, J R; Gabathuler, E; Gamet, R; Hutchcroft, D E; Payne, D J; Touramanis, C; Bevan, A J; Clarke, C K; Di Lodovico, F; Sacco, R; Sigamani, M; Cowan, G; Paramesvaran, S; Wren, A C; Brown, D N; Davis, C L; Denig, A G; Fritsch, M; Gradl, W; Hafner, A; Alwyn, K E; Bailey, D; Barlow, R J; Jackson, G; Lafferty, G D; West, T J; Yi, J I; Anderson, J; Chen, C; Jawahery, A; Roberts, D A; Simi, G; Tuggle, J M; Dallapiccola, C; Salvati, E; Saremi, S; Cowan, R; Dujmic, D; Fisher, P H; Henderson, S W; Sciolla, G; Spitznagel, M; Yamamoto, R K; Zhao, M; Patel, P M; Robertson, S H; Schram, M; Lazzaro, A; Lombardo, V; Palombo, F; Stracka, S; Bauer, J M; Cremaldi, L; Godang, R; Kroeger, R; Summers, D J; Zhao, H W; Simard, M; Taras, P; Nicholson, H; De Nardo, G; Lista, L; Monorchio, D; Onorato, G; Sciacca, C; Raven, G; Snoek, H L; Jessop, C P; Knoepfel, K J; Losecco, J M; Wang, W F; Corwin, L A; Honscheid, K; Kagan, H; Kass, R; Morris, J P; Rahimi, A M; Regensburger, J J; Sekula, S J; Wong, Q K; Blount, N L; Brau, J; Frey, R; Igonkina, O; Kolb, J A; Lu, M; Rahmat, R; Sinev, N B; Strom, D; Strube, J; Torrence, E; Castelli, G; Gagliardi, N; Margoni, M; Morandin, M; Posocco, M; Rotondo, M; Simonetto, F; Stroili, R; Voci, C; Del Amo Sanchez, P; Ben-Haim, E; Briand, H; Chauveau, J; Hamon, O; Leruste, Ph; Ocariz, J; Perez, A; Prendki, J; Sitt, S; Gladney, L; Biasini, M; Manoni, E; Angelini, C; Batignani, G; Bettarini, S; Calderini, G; Carpinelli, M; Cervelli, A; Forti, F; Giorgi, M A; Lusiani, A; Marchiori, G; Morganti, M; Neri, N; Paoloni, E; Rizzo, G; Walsh, J J; Lopes Pegna, D; Lu, C; Olsen, J; Smith, A J S; Telnov, A V; Anulli, F; Baracchini, E; Cavoto, G; Faccini, R; Ferrarotto, F; Ferroni, F; Gaspero, M; Jackson, P D; Li Gioi, L; Mazzoni, M A; Morganti, S; Piredda, G; Renga, F; Voena, C; Ebert, M; Hartmann, T; Schröder, H; Waldi, R; Adye, T; Franek, B; Olaiya, E O; Wilson, F F; Emery, S; Esteve, L; Hamel de Monchenault, G; Kozanecki, W; Vasseur, G; Yèche, Ch; Zito, M; Chen, X R; Liu, H; Park, W; Purohit, M V; White, R M; Wilson, J R; Allen, M T; Aston, D; Bartoldus, R; Benitez, J F; Cenci, R; Coleman, J P; Convery, M R; Dingfelder, J C; Dorfan, J; Dubois-Felsmann, G P; Dunwoodie, W; Field, R C; Gabareen, A M; Graham, M T; Grenier, P; Hast, C; Innes, W R; Kaminski, J; Kelsey, M H; Kim, H; Kim, P; Kocian, M L; Leith, D W G S; Li, S; Lindquist, B; Luitz, S; Luth, V; Lynch, H L; Macfarlane, D B; Marsiske, H; Messner, R; Muller, D R; Neal, H; Nelson, S; O'Grady, C P; Ofte, I; Perl, M; Ratcliff, B N; Roodman, A; Salnikov, A A; Schindler, R H; Schwiening, J; Snyder, A; Su, D; Sullivan, M K; Suzuki, K; Swain, S K; Thompson, J M; Va'vra, J; Wagner, A P; Weaver, M; West, C A; Wisniewski, W J; Wittgen, M; Wright, D H; Wulsin, H W; Yarritu, A K; Yi, K; Young, C C; Ziegler, V; Burchat, P R; Edwards, A J; Miyashita, T S; Ahmed, S; Alam, M S; Ernst, J A; Pan, B; Saeed, M A; Zain, S B; Spanier, S M; Wogsland, B J; Eckmann, R; Ritchie, J L; Ruland, A M; Schilling, C J; Schwitters, R F; Drummond, B W; Izen, J M; Lou, X C; Bianchi, F; Gamba, D; Pelliccioni, M; Bomben, M; Bosisio, L; Cartaro, C; Della Ricca, G; Lanceri, L; Vitale, L; Azzolini, V; Lopez-March, N; Martinez-Vidal, F; Milanes, D A; Oyanguren, A; Albert, J; Banerjee, Sw; Bhuyan, B; Choi, H H F; Hamano, K; King, G J; Kowalewski, R; Lewczuk, M J; Nugent, I M; Roney, J M; Sobie, R J; Gershon, T J; Harrison, P F; Ilic, J; Latham, T E; Mohanty, G B; Puccio, E M T; Band, H R; Chen, X; Dasu, S; Flood, K T; Pan, Y; Prepost, R; Vuosalo, C O; Wu, S L

    2009-04-10

    We present improved measurements of the branching fraction B, the longitudinal polarization fraction f{L}, and the direct CP asymmetry A{CP} in the B meson decay channel B;{+}-->rho;{+}rho;{0}. The data sample was collected with the BABAR detector at SLAC. The results are B(B;{+}-->rho;{+}rho;{0})=(23.7+/-1.4+/-1.4) x 10;{-6}, f{L}=0.950+/-0.015+/-0.006, and A{CP}=-0.054+/-0.055+/-0.010, where the uncertainties are statistical and systematic, respectively. Based on these results, we perform an isospin analysis and determine the Cabibbo-Kobayashi-Maskawa phase angle alpha=arg(-V{td}V{tb};/V{ud}V{ub}) to be (92.4{-6.5};{+6.0}) degrees. PMID:19392426

  13. Mixing angle and phase correlations from A5 with generalized C P and their prospects for discovery

    NASA Astrophysics Data System (ADS)

    Ballett, Peter; Pascoli, Silvia; Turner, Jessica

    2015-11-01

    The observed leptonic mixing pattern could be explained by the presence of a discrete flavor symmetry broken into residual subgroups at low energies. In this scenario, a residual generalized charge parity (C P ) symmetry allows the parameters of the Pontecorvo-Maki-Nakagawa-Sakata matrix, including Majorana phases, to be predicted in terms of a small set of input parameters. In this article, we study the mixing parameter correlations arising from the symmetry group A5 including generalized C P subsequently broken into all of its possible residual symmetries. Focusing on those patterns which satisfy present experimental bounds, we then provide a detailed analysis of the measurable signatures accessible to the planned reactor, superbeam and neutrinoless double-beta decay experiments. We also discuss the role which could be played by high-precision measurements from longer term projects such as the Neutrino Factory. This work provides a concrete example of how the synergies of the upcoming experimental program allow flavor symmetric models to be thoroughly investigated. Indeed, thanks to the rich tapestry of observable correlations, we find that each step of the experimental program can make important contributions to the assessment of such flavor-symmetric patterns, and ultimately all patterns that we have identified can be excluded, or strong evidence found for their continued relevance.

  14. Unveiling Neutrino Mixing and Leptonic CP Violation

    NASA Astrophysics Data System (ADS)

    Mena, Olga

    We review the present understanding of neutrino masses and mixings, discussing what are the unknowns in the three-family oscillation scenario. Despite the anticipated success coming from the planned long baseline neutrino experiments in unraveling the leptonic mixing sector, there are two important unknowns which may remain obscure: the mixing angle θ13 and the CP-phase δ. The measurement of these two parameters has led us to consider the combination of superbeams and neutrino factories as the key to unveil the neutrino oscillation picture.

  15. Complete two-loop electroweak fermionic corrections to the effective leptonic weak mixing angle sin2theta(lept)eff and indirect determination of the Higgs Boson Mass.

    PubMed

    Awramik, M; Czakon, M; Freitas, A; Weiglein, G

    2004-11-12

    We present a complete calculation of the contributions to the effective leptonic weak mixing angle, sin((2)theta;(lept)(eff), generated by closed fermion loops at the two-loop level of the electroweak interactions. This quantity is the source of the most stringent bound on the mass M(H) of the standard model Higgs boson. The size of the corrections with respect to known partial results varies between -4 x 10(-5) and -8 x 10(-5) for a realistic range of M(H) from 100 to 300 GeV. This translates into a shift of the predicted (from sin((2)theta;(lept)(eff) alone) central value of M(H) by +19 GeV, to be compared with the shift induced by a recent change in the measured top quark mass which amounts to +36 GeV. PMID:15600915

  16. Observation of direct CP violation in B0 --> pi+pi- decays and model-independent constraints on the quark-mixing angle phi2.

    PubMed

    Ishino, H; Abe, K; Abe, K; Adachi, I; Aihara, H; Anipko, D; Arinstein, K; Aushev, T; Bakich, A M; Barberio, E; Barbero, M; Bedny, I; Bitenc, U; Bizjak, I; Blyth, S; Bozek, A; Bracko, M; Browder, T E; Chang, M-C; Chang, P; Chao, Y; Chen, A; Chen, K-F; Chen, W T; Cheon, B G; Chistov, R; Choi, Y; Choi, Y K; Cole, S; Dalseno, J; Dash, M; Drutskoy, A; Eidelman, S; Fratina, S; Gershon, T; Go, A; Gokhroo, G; Golob, B; Gorisek, A; Ha, H; Haba, J; Hara, K; Hayasaka, K; Hazumi, M; Heffernan, D; Hokuue, T; Hoshi, Y; Hou, S; Hsiung, Y B; Iijima, T; Imoto, A; Inami, K; Ishikawa, A; Iwasaki, Y; Kang, J H; Kapusta, P; Kataoka, S U; Katayama, N; Kawai, H; Kawasaki, T; Khan, H R; Kibayashi, A; Kichimi, H; Kinoshita, K; Korpar, S; Krizan, P; Krokovny, P; Kulasiri, R; Kumar, R; Kuo, C C; Kusaka, A; Kuzmin, A; Kwon, Y-J; Lee, M J; Lee, S E; Lesiak, T; Limosani, A; Lin, S-W; MacNaughton, J; Mandl, F; Marlow, D; Matsumoto, T; Matyja, A; McOnie, S; Mitaroff, W; Miyabayashi, K; Miyake, H; Miyata, H; Miyazaki, Y; Mizuk, R; Mohapatra, D; Nagasaka, Y; Nakano, E; Nakao, M; Nishida, S; Nitoh, O; Nozaki, T; Ogawa, S; Ohshima, T; Olsen, S L; Onuki, Y; Ozaki, H; Pakhlov, P; Pakhlova, G; Park, H; Peak, L S; Pestotnik, R; Piilonen, L E; Sahoo, H; Sakai, Y; Satoyama, N; Schietinger, T; Schneider, O; Schümann, J; Schwanda, C; Schwartz, A J; Seidl, R; Senyo, K; Sevior, M E; Shibuya, H; Shwartz, B; Somov, A; Soni, N; Stanic, S; Staric, M; Stoeck, H; Sumisawa, K; Sumiyoshi, T; Suzuki, S Y; Tajima, O; Takasaki, F; Tamai, K; Tamura, N; Tanaka, M; Teramoto, Y; Tian, X C; Trabelsi, K; Tsukamoto, T; Uehara, S; Ueno, K; Unno, Y; Uno, S; Urquijo, P; Ushiroda, Y; Usov, Y; Varner, G; Varvell, K E; Villa, S; Wang, C H; Wang, M-Z; Watanabe, Y; Won, E; Wu, C-H; Xie, Q L; Yabsley, B D; Yamaguchi, A; Yamashita, Y; Yamauchi, M; Zhang, L M; Zhang, Z P; Zhilich, V; Zupanc, A

    2007-05-25

    We report a new measurement of the time-dependent CP-violating parameters in B(0)-->pi(+)pi(-) decays with 535 x 10(6) BB pairs collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider operating at the Upsilon(4S) resonance. We find 1464+/-65 B(0)-->pi(+)pi(-) events and measure the CP-violating parameters S(pipi)=-0.61+/-0.10(stat)+/-0.04(syst) and A(pipi)=+0.55+/-0.08(stat)+/-0.05(syst). We observe large direct CP violation with a significance greater than 5 standard deviations for any S(pipi) value. Using isospin relations, we measure the Cabibbo-Kobayashi-Maskawa quark-mixing matrix angle phi(2)=(97+/-11) degrees for the solution consistent with the standard model and exclude the range 11 degrees

  17. Measurement of the forward-backward asymmetry in Z/γ∗ → μ + μ - decays and determination of the effective weak mixing angle

    NASA Astrophysics Data System (ADS)

    Aaij, R.; Adeva, B.; Adinolfi, M.; Affolder, A.; Ajaltouni, Z.; Akar, S.; Albrecht, J.; Alessio, F.; Alexander, M.; Ali, S.; Alkhazov, G.; Alvarez Cartelle, P.; Alves, A. A.; Amato, S.; Amerio, S.; Amhis, Y.; An, L.; Anderlini, L.; Anderson, J.; Andreassi, G.; Andreotti, M.; Andrews, J. E.; Appleby, R. B.; Aquines Gutierrez, O.; Archilli, F.; d'Argent, P.; Artamonov, A.; Artuso, M.; Aslanides, E.; Auriemma, G.; Baalouch, M.; Bachmann, S.; Back, J. J.; Badalov, A.; Baesso, C.; Baldini, W.; Barlow, R. J.; Barschel, C.; Barsuk, S.; Barter, W.; Batozskaya, V.; Battista, V.; Bay, A.; Beaucourt, L.; Beddow, J.; Bedeschi, F.; Bediaga, I.; Bel, L. J.; Bellee, V.; Belloli, N.; Belyaev, I.; Ben-Haim, E.; Bencivenni, G.; Benson, S.; Benton, J.; Berezhnoy, A.; Bernet, R.; Bertolin, A.; Bettler, M.-O.; van Beuzekom, M.; Bien, A.; Bifani, S.; Billoir, P.; Bird, T.; Birnkraut, A.; Bizzeti, A.; Blake, T.; Blanc, F.; Blouw, J.; Blusk, S.; Bocci, V.; Bondar, A.; Bondar, N.; Bonivento, W.; Borghi, S.; Borsato, M.; Bowcock, T. J. V.; Bowen, E.; Bozzi, C.; Braun, S.; Britsch, M.; Britton, T.; Brodzicka, J.; Brook, N. H.; Buchanan, E.; Bursche, A.; Buytaert, J.; Cadeddu, S.; Calabrese, R.; Calvi, M.; Calvo Gomez, M.; Campana, P.; Campora Perez, D.; Capriotti, L.; Carbone, A.; Carboni, G.; Cardinale, R.; Cardini, A.; Carniti, P.; Carson, L.; Carvalho Akiba, K.; Casse, G.; Cassina, L.; Castillo Garcia, L.; Cattaneo, M.; Cauet, Ch.; Cavallero, G.; Cenci, R.; Charles, M.; Charpentier, Ph.; Chefdeville, M.; Chen, S.; Cheung, S.-F.; Chiapolini, N.; Chrzaszcz, M.; Cid Vidal, X.; Ciezarek, G.; Clarke, P. E. L.; Clemencic, M.; Cliff, H. V.; Closier, J.; Coco, V.; Cogan, J.; Cogneras, E.; Cogoni, V.; Cojocariu, L.; Collazuol, G.; Collins, P.; Comerma-Montells, A.; Contu, A.; Cook, A.; Coombes, M.; Coquereau, S.; Corti, G.; Corvo, M.; Couturier, B.; Cowan, G. A.; Craik, D. C.; Crocombe, A.; Cruz Torres, M.; Cunliffe, S.; Currie, R.; D'Ambrosio, C.; Dall'Occo, E.; Dalseno, J.; David, P. N. Y.; Davis, A.; De Aguiar Francisco, O.; De Bruyn, K.; De Capua, S.; De Cian, M.; De Miranda, J. M.; De Paula, L.; De Simone, P.; Dean, C.-T.; Decamp, D.; Deckenhoff, M.; Del Buono, L.; Déléage, N.; Demmer, M.; Derkach, D.; Deschamps, O.; Dettori, F.; Dey, B.; Di Canto, A.; Di Ruscio, F.; Dijkstra, H.; Donleavy, S.; Dordei, F.; Dorigo, M.; Dosil Suárez, A.; Dossett, D.; Dovbnya, A.; Dreimanis, K.; Dufour, L.; Dujany, G.; Dupertuis, F.; Durante, P.; Dzhelyadin, R.; Dziurda, A.; Dzyuba, A.; Easo, S.; Egede, U.; Egorychev, V.; Eidelman, S.; Eisenhardt, S.; Eitschberger, U.; Ekelhof, R.; Eklund, L.; El Rifai, I.; Elsasser, Ch.; Ely, S.; Esen, S.; Evans, H. M.; Evans, T.; Falabella, A.; Färber, C.; Farley, N.; Farry, S.; Fay, R.; Ferguson, D.; Fernandez Albor, V.; Ferrari, F.; Ferreira Rodrigues, F.; Ferro-Luzzi, M.; Filippov, S.; Fiore, M.; Fiorini, M.; Firlej, M.; Fitzpatrick, C.; Fiutowski, T.; Fohl, K.; Fol, P.; Fontana, M.; Fontanelli, F.; Forty, R.; Frank, M.; Frei, C.; Frosini, M.; Fu, J.; Furfaro, E.; Gallas Torreira, A.; Galli, D.; Gallorini, S.; Gambetta, S.; Gandelman, M.; Gandini, P.; Gao, Y.; García Pardiñas, J.; Garra Tico, J.; Garrido, L.; Gascon, D.; Gaspar, C.; Gauld, R.; Gavardi, L.; Gazzoni, G.; Gerick, D.; Gersabeck, E.; Gersabeck, M.; Gershon, T.; Ghez, Ph.; Gianì, S.; Gibson, V.; Girard, O. G.; Giubega, L.; Gligorov, V. V.; Göbel, C.; Golubkov, D.; Golutvin, A.; Gomes, A.; Gotti, C.; Grabalosa Gándara, M.; Graciani Diaz, R.; Granado Cardoso, L. A.; Graugés, E.; Graverini, E.; Graziani, G.; Grecu, A.; Greening, E.; Gregson, S.; Griffith, P.; Grillo, L.; Grünberg, O.; Gui, B.; Gushchin, E.; Guz, Yu.; Gys, T.; Hadavizadeh, T.; Hadjivasiliou, C.; Haefeli, G.; Haen, C.; Haines, S. C.; Hall, S.; Hamilton, B.; Han, X.; Hansmann-Menzemer, S.; Harnew, N.; Harnew, S. T.; Harrison, J.; He, J.; Head, T.; Heijne, V.; Hennessy, K.; Henrard, P.; Henry, L.; van Herwijnen, E.; Heß, M.; Hicheur, A.; Hill, D.; Hoballah, M.; Hombach, C.; Hulsbergen, W.; Humair, T.; Hussain, N.; Hutchcroft, D.; Hynds, D.; Idzik, M.; Ilten, P.; Jacobsson, R.; Jaeger, A.; Jalocha, J.; Jans, E.; Jawahery, A.; Jing, F.; John, M.; Johnson, D.; Jones, C. R.; Joram, C.; Jost, B.; Jurik, N.; Kandybei, S.; Kanso, W.; Karacson, M.; Karbach, T. M.; Karodia, S.; Kecke, M.; Kelsey, M.; Kenyon, I. R.; Kenzie, M.; Ketel, T.; Khairullin, E.; Khanji, B.; Khurewathanakul, C.; Klaver, S.; Klimaszewski, K.; Kochebina, O.; Kolpin, M.; Komarov, I.; Koopman, R. F.; Koppenburg, P.; Kozeiha, M.; Kravchuk, L.; Kreplin, K.; Kreps, M.; Krocker, G.; Krokovny, P.; Kruse, F.; Krzemien, W.; Kucewicz, W.; Kucharczyk, M.; Kudryavtsev, V.; Kuonen, A. K.; Kurek, K.; Kvaratskheliya, T.; Lacarrere, D.; Lafferty, G.; Lai, A.; Lambert, D.; Lanfranchi, G.; Langenbruch, C.; Langhans, B.; Latham, T.; Lazzeroni, C.; Le Gac, R.; van Leerdam, J.; Lees, J.-P.; Lefèvre, R.; Leflat, A.; Lefrançois, J.; Lemos Cid, E.; Leroy, O.; Lesiak, T.; Leverington, B.; Li, Y.; Likhomanenko, T.; Liles, M.; Lindner, R.; Linn, C.; Lionetto, F.; Liu, B.; Liu, X.; Loh, D.; Longstaff, I.; Lopes, J. H.; Lucchesi, D.; Lucio Martinez, M.; Luo, H.; Lupato, A.; Luppi, E.; Lupton, O.; Lusiani, A.; Machefert, F.; Maciuc, F.; Maev, O.; Maguire, K.; Malde, S.; Malinin, A.; Manca, G.; Mancinelli, G.; Manning, P.; Mapelli, A.; Maratas, J.; Marchand, J. F.; Marconi, U.; Marin Benito, C.; Marino, P.; Marks, J.; Martellotti, G.; Martin, M.; Martinelli, M.; Martinez Santos, D.; Martinez Vidal, F.; Martins Tostes, D.; Massafferri, A.; Matev, R.; Mathad, A.; Mathe, Z.; Matteuzzi, C.; Mauri, A.; Maurin, B.; Mazurov, A.; McCann, M.; McCarthy, J.; McNab, A.; McNulty, R.; Meadows, B.; Meier, F.; Meissner, M.; Melnychuk, D.; Merk, M.; Michielin, E.; Milanes, D. A.; Minard, M.-N.; Mitzel, D. S.; Molina Rodriguez, J.; Monroy, I. A.; Monteil, S.; Morandin, M.; Morawski, P.; Mordà, A.; Morello, M. J.; Moron, J.; Morris, A. B.; Mountain, R.; Muheim, F.; Müller, D.; Müller, J.; Müller, K.; Müller, V.; Mussini, M.; Muster, B.; Naik, P.; Nakada, T.; Nandakumar, R.; Nandi, A.; Nasteva, I.; Needham, M.; Neri, N.; Neubert, S.; Neufeld, N.; Neuner, M.; Nguyen, A. D.; Nguyen, T. D.; Nguyen-Mau, C.; Niess, V.; Niet, R.; Nikitin, N.; Nikodem, T.; Novoselov, A.; O'Hanlon, D. P.; Oblakowska-Mucha, A.; Obraztsov, V.; Ogilvy, S.; Okhrimenko, O.; Oldeman, R.; Onderwater, C. J. G.; Osorio Rodrigues, B.; Otalora Goicochea, J. M.; Otto, A.; Owen, P.; Oyanguren, A.; Palano, A.; Palombo, F.; Palutan, M.; Panman, J.; Papanestis, A.; Pappagallo, M.; Pappalardo, L. L.; Pappenheimer, C.; Parker, W.; Parkes, C.; Passaleva, G.; Patel, G. D.; Patel, M.; Patrignani, C.; Pearce, A.; Pellegrino, A.; Penso, G.; Pepe Altarelli, M.; Perazzini, S.; Perret, P.; Pescatore, L.; Petridis, K.; Petrolini, A.; Petruzzo, M.; Picatoste Olloqui, E.; Pietrzyk, B.; Pilař, T.; Pinci, D.; Pistone, A.; Piucci, A.; Playfer, S.; Plo Casasus, M.; Poikela, T.; Polci, F.; Poluektov, A.; Polyakov, I.; Polycarpo, E.; Popov, A.; Popov, D.; Popovici, B.; Potterat, C.; Price, E.; Price, J. D.; Prisciandaro, J.; Pritchard, A.; Prouve, C.; Pugatch, V.; Puig Navarro, A.; Punzi, G.; Qian, W.; Quagliani, R.; Rachwal, B.; Rademacker, J. H.; Rama, M.; Rangel, M. S.; Raniuk, I.; Rauschmayr, N.; Raven, G.; Redi, F.; Reichert, S.; Reid, M. M.; dos Reis, A. C.; Ricciardi, S.; Richards, S.; Rihl, M.; Rinnert, K.; Rives Molina, V.; Robbe, P.; Rodrigues, A. B.; Rodrigues, E.; Rodriguez Lopez, J. A.; Rodriguez Perez, P.; Roiser, S.; Romanovsky, V.; Romero Vidal, A.; Ronayne, J. W.; Rotondo, M.; Rouvinet, J.; Ruf, T.; Ruiz Valls, P.; Saborido Silva, J. J.; Sagidova, N.; Sail, P.; Saitta, B.; Salustino Guimaraes, V.; Sanchez Mayordomo, C.; Sanmartin Sedes, B.; Santacesaria, R.; Santamarina Rios, C.; Santimaria, M.; Santovetti, E.; Sarti, A.; Satriano, C.; Satta, A.; Saunders, D. M.; Savrina, D.; Schiller, M.; Schindler, H.; Schlupp, M.; Schmelling, M.; Schmelzer, T.; Schmidt, B.; Schneider, O.; Schopper, A.; Schubiger, M.; Schune, M.-H.; Schwemmer, R.; Sciascia, B.; Sciubba, A.; Semennikov, A.; Serra, N.; Serrano, J.; Sestini, L.; Seyfert, P.; Shapkin, M.; Shapoval, I.; Shcheglov, Y.; Shears, T.; Shekhtman, L.; Shevchenko, V.; Shires, A.; Siddi, B. G.; Silva Coutinho, R.; Silva de Oliveira, L.; Simi, G.; Sirendi, M.; Skidmore, N.; Skwarnicki, T.; Smith, E.; Smith, E.; Smith, I. T.; Smith, J.; Smith, M.; Snoek, H.; Sokoloff, M. D.; Soler, F. J. P.; Soomro, F.; Souza, D.; Souza De Paula, B.; Spaan, B.; Spradlin, P.; Sridharan, S.; Stagni, F.; Stahl, M.; Stahl, S.; Stefkova, S.; Steinkamp, O.; Stenyakin, O.; Stevenson, S.; Stoica, S.; Stone, S.; Storaci, B.; Stracka, S.; Straticiuc, M.; Straumann, U.; Sun, L.; Sutcliffe, W.; Swientek, K.; Swientek, S.; Syropoulos, V.; Szczekowski, M.; Szumlak, T.; T'Jampens, S.; Tayduganov, A.; Tekampe, T.; Teklishyn, M.; Tellarini, G.; Teubert, F.; Thomas, C.; Thomas, E.; van Tilburg, J.; Tisserand, V.; Tobin, M.; Todd, J.; Tolk, S.; Tomassetti, L.; Tonelli, D.; Topp-Joergensen, S.; Torr, N.; Tournefier, E.; Tourneur, S.; Trabelsi, K.; Tran, M. T.; Tresch, M.; Trisovic, A.; Tsaregorodtsev, A.; Tsopelas, P.; Tuning, N.; Ukleja, A.; Ustyuzhanin, A.; Uwer, U.; Vacca, C.; Vagnoni, V.; Valenti, G.; Vallier, A.; Vazquez Gomez, R.; Vazquez Regueiro, P.; Vázquez Sierra, C.; Vecchi, S.; Velthuis, J. J.; Veltri, M.; Veneziano, G.; Vesterinen, M.; Viaud, B.; Vieira, D.; Vieites Diaz, M.; Vilasis-Cardona, X.; Volkov, V.; Vollhardt, A.; Volyanskyy, D.; Voong, D.; Vorobyev, A.; Vorobyev, V.; Voß, C.; de Vries, J. A.; Waldi, R.; Wallace, C.; Wallace, R.; Walsh, J.; Wandernoth, S.; Wang, J.; Ward, D. R.; Watson, N. K.; Websdale, D.; Weiden, A.; Whitehead, M.; Wilkinson, G.; Wilkinson, M.; Williams, M.; Williams, M. P.; Williams, M.; Williams, T.; Wilson, F. F.; Wimberley, J.; Wishahi, J.; Wislicki, W.; Witek, M.; Wormser, G.; Wotton, S. A.; Wright, S.; Wyllie, K.; Xie, Y.; Xu, Z.; Yang, Z.; Yu, J.; Yuan, X.; Yushchenko, O.; Zangoli, M.; Zavertyaev, M.; Zhang, L.; Zhang, Y.; Zhelezov, A.; Zhokhov, A.; Zhong, L.; Zucchelli, S.

    2015-11-01

    The forward-backward charge asymmetry for the process qoverline{q}to Z/{γ}^{ast}to {μ}+{μ}- is measured as a function of the invariant mass of the dimuon system. Measurements are performed using proton proton collision data collected with the LHCb detector at √{s}=7 and 8 TeV, corresponding to integrated luminosities of 1 fb-1 and 2 fb-1 respectively. Within the Standard Model the results constrain the effective electroweak mixing angle to be sin^2{θ}W^{eff}=0.23142± 0.00073± 0.00052± 0.00056, where the first uncertainty is statistical, the second systematic and the third theoretical. This result is in agreement with the current world average, and is one of the most precise determinations at hadron colliders to date. [Figure not available: see fulltext.

  18. Observation of B(s)(0) → J/ψ f1(1285) decays and measurement of the f1(1285) mixing angle.

    PubMed

    Aaij, R; Adeva, B; Adinolfi, M; Adrover, C; Affolder, A; Ajaltouni, Z; Albrecht, J; Alessio, F; Alexander, M; Ali, S; Alkhazov, G; Alvarez Cartelle, P; Alves, A A; Amato, S; Amerio, S; Amhis, Y; Anderlini, L; Anderson, J; Andreassen, R; Andreotti, M; Andrews, J E; Appleby, R B; Aquines Gutierrez, O; Archilli, F; Artamonov, A; Artuso, M; Aslanides, E; Auriemma, G; Baalouch, M; Bachmann, S; Back, J J; Badalov, A; Baesso, C; Balagura, V; Baldini, W; Barlow, R J; Barschel, C; Barsuk, S; Barter, W; Batozskaya, V; Bauer, Th; Bay, A; Beddow, J; Bedeschi, F; Bediaga, I; Belogurov, S; Belous, K; Belyaev, I; Ben-Haim, E; Bencivenni, G; Benson, S; Benton, J; Berezhnoy, A; Bernet, R; Bettler, M-O; van Beuzekom, M; Bien, A; Bifani, S; Bird, T; Bizzeti, A; Bjørnstad, P M; Blake, T; Blanc, F; Blouw, J; Blusk, S; Bocci, V; Bondar, A; Bondar, N; Bonivento, W; Borghi, S; Borgia, A; Bowcock, T J V; Bowen, E; Bozzi, C; Brambach, T; van den Brand, J; Bressieux, J; Brett, D; Britsch, M; Britton, T; Brook, N H; Brown, H; Bursche, A; Busetto, G; Buytaert, J; Cadeddu, S; Calabrese, R; Callot, O; Calvi, M; Calvo Gomez, M; Camboni, A; Campana, P; Campora Perez, D; Carbone, A; Carboni, G; Cardinale, R; Cardini, A; Carranza-Mejia, H; Carson, L; Carvalho Akiba, K; Casse, G; Castillo Garcia, L; Cattaneo, M; Cauet, Ch; Cenci, R; Charles, M; Charpentier, Ph; Cheung, S-F; Chiapolini, N; Chrzaszcz, M; Ciba, K; Cid Vidal, X; Ciezarek, G; Clarke, P E L; Clemencic, M; Cliff, H V; Closier, J; Coca, C; Coco, V; Cogan, J; Cogneras, E; Collins, P; Comerma-Montells, A; Contu, A; Cook, A; Coombes, M; Coquereau, S; Corti, G; Couturier, B; Cowan, G A; Craik, D C; Cruz Torres, M; Cunliffe, S; Currie, R; D'Ambrosio, C; David, P; David, P N Y; Davis, A; De Bonis, I; De Bruyn, K; De Capua, S; De Cian, M; De Miranda, J M; De Paula, L; De Silva, W; De Simone, P; Decamp, D; Deckenhoff, M; Del Buono, L; Déléage, N; Derkach, D; Deschamps, O; Dettori, F; Di Canto, A; Dijkstra, H; Dogaru, M; Donleavy, S; Dordei, F; Dosil Suárez, A; Dossett, D; Dovbnya, A; Dupertuis, F; Durante, P; Dzhelyadin, R; Dziurda, A; Dzyuba, A; Easo, S; Egede, U; Egorychev, V; Eidelman, S; van Eijk, D; Eisenhardt, S; Eitschberger, U; Ekelhof, R; Eklund, L; El Rifai, I; Elsasser, Ch; Falabella, A; Färber, C; Farinelli, C; Farry, S; Ferguson, D; Fernandez Albor, V; Ferreira Rodrigues, F; Ferro-Luzzi, M; Filippov, S; Fiore, M; Fiorini, M; Fitzpatrick, C; Fontana, M; Fontanelli, F; Forty, R; Francisco, O; Frank, M; Frei, C; Frosini, M; Furfaro, E; Gallas Torreira, A; Galli, D; Gandelman, M; Gandini, P; Gao, Y; Garofoli, J; Garosi, P; Garra Tico, J; Garrido, L; Gaspar, C; Gauld, R; Gersabeck, E; Gersabeck, M; Gershon, T; Ghez, Ph; Gibson, V; Giubega, L; Gligorov, V V; Göbel, C; Golubkov, D; Golutvin, A; Gomes, A; Gorbounov, P; Gordon, H; Grabalosa Gándara, M; Graciani Diaz, R; Granado Cardoso, L A; Graugés, E; Graziani, G; Grecu, A; Greening, E; Gregson, S; Griffith, P; Grillo, L; Grünberg, O; Gui, B; Gushchin, E; Guz, Yu; Gys, T; Hadjivasiliou, C; Haefeli, G; Haen, C; Hafkenscheid, T W; Haines, S C; Hall, S; Hamilton, B; Hampson, T; Hansmann-Menzemer, S; Harnew, N; Harnew, S T; Harrison, J; Hartmann, T; He, J; Head, T; Heijne, V; Hennessy, K; Henrard, P; Hernando Morata, J A; van Herwijnen, E; Heß, M; Hicheur, A; Hicks, E; Hill, D; Hoballah, M; Hombach, C; Hulsbergen, W; Hunt, P; Huse, T; Hussain, N; Hutchcroft, D; Hynds, D; Iakovenko, V; Idzik, M; Ilten, P; Jacobsson, R; Jaeger, A; Jans, E; Jaton, P; Jawahery, A; Jing, F; John, M; Johnson, D; Jones, C R; Joram, C; Jost, B; Kaballo, M; Kandybei, S; Kanso, W; Karacson, M; Karbach, T M; Kenyon, I R; Ketel, T; Khanji, B; Kochebina, O; Komarov, I; Koopman, R F; Koppenburg, P; Korolev, M; Kozlinskiy, A; Kravchuk, L; Kreplin, K; Kreps, M; Krocker, G; Krokovny, P; Kruse, F; Kucharczyk, M; Kudryavtsev, V; Kurek, K; Kvaratskheliya, T; La Thi, V N; Lacarrere, D; Lafferty, G; Lai, A; Lambert, D; Lambert, R W; Lanciotti, E; Lanfranchi, G; Langenbruch, C; Latham, T; Lazzeroni, C; Le Gac, R; van Leerdam, J; Lees, J-P; Lefèvre, R; Leflat, A; Lefrançois, J; Leo, S; Leroy, O; Lesiak, T; Leverington, B; Li, Y; Li Gioi, L; Liles, M; Lindner, R; Linn, C; Liu, B; Liu, G; Lohn, S; Longstaff, I; Lopes, J H; Lopez-March, N; Lu, H; Lucchesi, D; Luisier, J; Luo, H; Luppi, E; Lupton, O; Machefert, F; Machikhiliyan, I V; Maciuc, F; Maev, O; Malde, S; Manca, G; Mancinelli, G; Maratas, J; Marconi, U; Marino, P; Märki, R; Marks, J; Martellotti, G; Martens, A; Martín Sánchez, A; Martinelli, M; Martinez Santos, D; Martins Tostes, D; Martynov, A; Massafferri, A; Matev, R; Mathe, Z; Matteuzzi, C; Maurice, E; Mazurov, A; McCann, M; McCarthy, J; McNab, A; McNulty, R; McSkelly, B; Meadows, B; Meier, F; Meissner, M; Merk, M; Milanes, D A; Minard, M-N; Molina Rodriguez, J; Monteil, S; Moran, D; Morawski, P; Mordà, A; Morello, M J; Mountain, R; Mous, I; Muheim, F; Müller, K; Muresan, R; Muryn, B; Muster, B; Naik, P; Nakada, T; Nandakumar, R; Nasteva, I; Needham, M; Neubert, S; Neufeld, N; Nguyen, A D; Nguyen, T D; Nguyen-Mau, C; Nicol, M; Niess, V; Niet, R; Nikitin, N; Nikodem, T; Nomerotski, A; Novoselov, A; Oblakowska-Mucha, A; Obraztsov, V; Oggero, S; Ogilvy, S; Okhrimenko, O; Oldeman, R; Onderwater, G; Orlandea, M; Otalora Goicochea, J M; Owen, P; Oyanguren, A; Pal, B K; Palano, A; Palutan, M; Panman, J; Papanestis, A; Pappagallo, M; Parkes, C; Parkinson, C J; Passaleva, G; Patel, G D; Patel, M; Patrick, G N; Patrignani, C; Pavel-Nicorescu, C; Pazos Alvarez, A; Pearce, A; Pellegrino, A; Penso, G; Pepe Altarelli, M; Perazzini, S; Perez Trigo, E; Pérez-Calero Yzquierdo, A; Perret, P; Perrin-Terrin, M; Pescatore, L; Pesen, E; Pessina, G; Petridis, K; Petrolini, A; Phan, A; Picatoste Olloqui, E; Pietrzyk, B; Pilař, T; Pinci, D; Playfer, S; Plo Casasus, M; Polci, F; Polok, G; Poluektov, A; Polycarpo, E; Popov, A; Popov, D; Popovici, B; Potterat, C; Powell, A; Prisciandaro, J; Pritchard, A; Prouve, C; Pugatch, V; Puig Navarro, A; Punzi, G; Qian, W; Rachwal, B; Rademacker, J H; Rakotomiaramanana, B; Rangel, M S; Raniuk, I; Rauschmayr, N; Raven, G; Redford, S; Reichert, S; Reid, M M; Dos Reis, A C; Ricciardi, S; Richards, A; Rinnert, K; Rives Molina, V; Roa Romero, D A; Robbe, P; Roberts, D A; Rodrigues, A B; Rodrigues, E; Rodriguez Perez, P; Roiser, S; Romanovsky, V; Romero Vidal, A; Rotondo, M; Rouvinet, J; Ruf, T; Ruffini, F; Ruiz, H; Ruiz Valls, P; Sabatino, G; Saborido Silva, J J; Sagidova, N; Sail, P; Saitta, B; Salustino Guimaraes, V; Sanmartin Sedes, B; Santacesaria, R; Santamarina Rios, C; Santovetti, E; Sapunov, M; Sarti, A; Satriano, C; Satta, A; Savrie, M; Savrina, D; Schiller, M; Schindler, H; Schlupp, M; Schmelling, M; Schmidt, B; Schneider, O; Schopper, A; Schune, M-H; Schwemmer, R; Sciascia, B; Sciubba, A; Seco, M; Semennikov, A; Senderowska, K; Sepp, I; Serra, N; Serrano, J; Seyfert, P; Shapkin, M; Shapoval, I; Shcheglov, Y; Shears, T; Shekhtman, L; Shevchenko, O; Shevchenko, V; Shires, A; Silva Coutinho, R; Sirendi, M; Skidmore, N; Skwarnicki, T; Smith, N A; Smith, E; Smith, E; Smith, J; Smith, M; Sokoloff, M D; Soler, F J P; Soomro, F; Souza, D; Souza De Paula, B; Spaan, B; Sparkes, A; Spradlin, P; Stagni, F; Stahl, S; Steinkamp, O; Stevenson, S; Stoica, S; Stone, S; Storaci, B; Straticiuc, M; Straumann, U; Subbiah, V K; Sun, L; Sutcliffe, W; Swientek, S; Syropoulos, V; Szczekowski, M; Szczypka, P; Szilard, D; Szumlak, T; T'jampens, S; Teklishyn, M; Tellarini, G; Teodorescu, E; Teubert, F; Thomas, C; Thomas, E; van Tilburg, J; Tisserand, V; Tobin, M; Tolk, S; Tomassetti, L; Tonelli, D; Topp-Joergensen, S; Torr, N; Tournefier, E; Tourneur, S; Tran, M T; Tresch, M; Tsaregorodtsev, A; Tsopelas, P; Tuning, N; Ubeda Garcia, M; Ukleja, A; Ustyuzhanin, A; Uwer, U; Vagnoni, V; Valenti, G; Vallier, A; Vazquez Gomez, R; Vazquez Regueiro, P; Vázquez Sierra, C; Vecchi, S; Velthuis, J J; Veltri, M; Veneziano, G; Vesterinen, M; Viaud, B; Vieira, D; Vilasis-Cardona, X; Vollhardt, A; Volyanskyy, D; Voong, D; Vorobyev, A; Vorobyev, V; Voß, C; Voss, H; Waldi, R; Wallace, C; Wallace, R; Wandernoth, S; Wang, J; Ward, D R; Watson, N K; Webber, A D; Websdale, D; Whitehead, M; Wicht, J; Wiechczynski, J; Wiedner, D; Wiggers, L; Wilkinson, G; Williams, M P; Williams, M; Wilson, F F; Wimberley, J; Wishahi, J; Wislicki, W; Witek, M; Wormser, G; Wotton, S A; Wright, S; Wu, S; Wyllie, K; Xie, Y; Xing, Z; Yang, Z; Yuan, X; Yushchenko, O; Zangoli, M; Zavertyaev, M; Zhang, F; Zhang, L; Zhang, W C; Zhang, Y; Zhelezov, A; Zhokhov, A; Zhong, L; Zvyagin, A

    2014-03-01

    Decays of B(s)(0) and B(0) mesons into J/ψ π+π-π+π- final states, produced in pp collisions at the LHC, are investigated using data corresponding to an integrated luminosity of 3 fb-1 collected with the LHCb detector. B(s)(0) → J/ψ f1(1285) decays are seen for the first time, and the branching fractions are measured. Using these rates, the f1(1285) mixing angle between strange and nonstrange components of its wave function in the qq structure model is determined to be ±(24.0-2.6-0.8+3.1+0.6)°. Implications on the possible tetraquark nature of the f1(1285) are discussed. PMID:24655242

  19. A computer program for the calculation of the flow field including boundary layer effects for mixed-compression inlets at angle of attack

    NASA Technical Reports Server (NTRS)

    Vadyak, J.; Hoffman, J. D.

    1982-01-01

    A computer program was developed which is capable of calculating the flow field in the supersonic portion of a mixed compression aircraft inlet operating at angle of attack. The supersonic core flow is computed using a second-order three dimensional method-of-characteristics algorithm. The bow shock and the internal shock train are treated discretely using a three dimensional shock fitting procedure. The boundary layer flows are computed using a second-order implicit finite difference method. The shock wave-boundary layer interaction is computed using an integral formulation. The general structure of the computer program is discussed, and a brief description of each subroutine is given. All program input parameters are defined, and a brief discussion on interpretation of the output is provided. A number of sample cases, complete with data listings, are provided.

  20. Exploring the Unknown

    ERIC Educational Resources Information Center

    Pallant, Amy; Pryputniewicz, Sarah; Lee, Hee-Sun

    2012-01-01

    Scientists, and science in general, move from the unknown to increasing levels of certainty. Teaching students about science means encouraging them to embrace and investigate the unknown, make reliable scientific claims, justify those claims with evidence, and evaluate the quality of the evidence. In all areas of science--and especially in…

  1. Structure determination of functional membrane proteins using small-angle neutron scattering (sans) with small, mixed-lipid liposomes: native beef heart mitochondrial cytochrome c oxidase forms dimers.

    PubMed

    Rubinson, Kenneth A; Pokalsky, Christine; Krueger, Susan; Prochaska, Lawrence J

    2013-01-01

    The low-resolution three-dimensional structure of purified native beef heart mitochondrial cytochrome c oxidase (COX) in asolectin unilamellar liposomes has been measured by small-angle neutron scattering under the conditions where the protein remains fully functional. From a neutron scattering perspective, the use of mixed-lipid liposomes provided for a more homogeneous matrix than can be achieved using a single lipid. As a result, the measurements were able to be performed under conditions where the liposome scattering was essentially eliminated (contrast-matched conditions). The protein structure in the membrane was modeled as a simple parallelepiped with side lengths of (59 × 70 × 120) Å with uncertainties, respectively, (11, 12, 20 Å). The molecular mass calculated for a typical protein with this volume is estimated to be (410 ± 124) kDa, which indicates the mass of a COX dimer. The longest dimension has some uncertainty due to intermolecular scattering contributing to the data. Nevertheless, that length was estimated using an average protein density and the known dimer molecular mass. Using the same cross sectional dimensions for the structure, the length is estimated to be 120 Å. However, the measured scattering curve of the dimer in the liposome differs significantly from that calculated from the X-ray structure of the dimer in a crystal of mixed micelles (PDB 3AG1). The calculated SANS scattering from the crystal structure was fit with a parallelepiped, measuring (59 × 101 × 129) Å with fitting uncertainties, respectively, (2, 3, 3 Å). Our results suggest that COX is a functional dimer when reconstituted into mixed-lipid liposomes. PMID:23143018

  2. Transition between two next-nearest-neighbor phases in a mixed Langmuir monolayer. A study by grazing-incidence x-ray diffraction and Brewster-angle microscopy

    NASA Astrophysics Data System (ADS)

    Teer, Ellis; Knobler, Charles M.; Braslau, Alan; Daillant, Jean; Blot, Christian; Luzet, Daniel; Goldmann, Michel; Fontiane, Phillipe

    2000-08-01

    Grazing incidence x-ray diffraction and Brewster-angle microscopy measurements have been undertaken for a mixed Langmuir monolayer of octadecanoic acid and methyl octadecanoate. For the composition studied (49.7 mol % ester) there are two noncrystalline tilted phases, one at low pressure in which the chains point to their nearest neighbors (L2 phase) and a higher-pressure phase in which the tilt is toward next-nearest neighbors. The higher-pressure phase arises from a merger of the L2' and Ov phases, which are separated in the pure acid. A continuous change between the two regions is observed rather than a first-order transition, as had been suggested. The results are discussed with reference to different proposals for the origin of two distinct next-nearest neighbor tilted mesophases: the presence of one-dimensional chain backbone order [V. M. Kaganer and E. B. Loginov, Phys. Rev. E 51, 2237 (1995)] and a coupling between tilt and distortion [E. Sirota, Langmuir 13, 3849 (1997)].

  3. FLOW FIELD IN SUPERSONIC MIXED-COMPRESSION INLETS AT ANGLE OF ATTACK USING THE THREE DIMENSIONAL METHOD OF CHARACTERISTICS WITH DISCRETE SHOCK WAVE FITTING

    NASA Technical Reports Server (NTRS)

    Bishop, A. R.

    1994-01-01

    This computer program calculates the flow field in the supersonic portion of a mixed-compression aircraft inlet at non-zero angle of attack. This approach is based on the method of characteristics for steady three-dimensional flow. The results of this program agree with those produced by the two-dimensional method of characteristics when axisymmetric flow fields are calculated. Except in regions of high viscous interaction and boundary layer removal, the results agree well with experimental data obtained for threedimensional flow fields. The flow field in a variety of axisymmetric mixed compression inlets can be calculated using this program. The bow shock wave and the internal shock wave system are calculated using a discrete shock wave fitting procedure. The internal flow field can be calculated either with or without the discrete fitting of the internal shock wave system. The influence of molecular transport can be included in the calculation of the external flow about the forebody and in the calculation of the internal flow when internal shock waves are not discretely fitted. The viscous and thermal diffussion effects are included by treating them as correction terms in the method of characteristics procedure. Dynamic viscosity is represented by Sutherland's law and thermal conductivity is represented as a quadratic function of temperature. The thermodynamic model used is that of a thermally and calorically perfect gas. The program assumes that the cowl lip is contained in a constant plane and that the centerbody contour and cowl contour are smooth and have continuous first partial derivatives. This program cannot calculate subsonic flow, the external flow field if the bow shock wave does not exist entirely around the forebody, or the internal flow field if the bow flow field is injected into the annulus. Input to the program consists of parameters to control execution, to define the geometry, and the vehicle orientation. Output consists of a list of parameters used, solution planes, and a description of the shock waves. This program is written in FORTRAN IV for batch execution and has been implemented on a CDC 6000 series machine with a central memory requirement of 110K (octal) of 60 bit words when it is overlayed. This flow analysis program was developed in 1978.

  4. Metrology with Unknown Detectors

    NASA Astrophysics Data System (ADS)

    Altorio, Matteo; Genoni, Marco G.; Somma, Fabrizia; Barbieri, Marco

    2016-03-01

    The best possible precision is one of the key figures in metrology, but this is established by the exact response of the detection apparatus, which is often unknown. There exist techniques for detector characterization that have been introduced in the context of quantum technologies but apply as well for ordinary classical coherence; these techniques, though, rely on intense data processing. Here, we show that one can make use of the simpler approach of data fitting patterns in order to obtain an estimate of the Cramér-Rao bound allowed by an unknown detector, and we present applications in polarimetry. Further, we show how this formalism provides a useful calculation tool in an estimation problem involving a continuous-variable quantum state, i.e., a quantum harmonic oscillator.

  5. 32. Photocopy of drawing (Location of original unknown) Architect unknown, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    32. Photocopy of drawing (Location of original unknown) Architect unknown, Date unknown STEEL WORK DETAILS, WEST END OF BANKING ROOM, STAIR LANDINGS - Anglo & London Paris National Bank, One Sansome Street, San Francisco, San Francisco County, CA

  6. [Badminton--unknown sport].

    PubMed

    Zekan-Petrinovi?, Lidija

    2007-01-01

    For a long time, badminton was considered to be only a slow and light game for children, a game that is played outdoors and is structurally undemanding.Today, it is not an unknown and unrecognised sport, especially after it was included into the Olympics Games in 1992. Badminton is one of the oldest sports in the world. It is suitable for all ages (for children and elderly equally), women and men and even handicapped persons. Beginners can start playing badminton matches early because the basics are learned quickly. As a recreational activity, badminton is very popular in Zagreb. In the last 10 years, a number of halls specialized for badminton or offering badminton as one of available sports activities have been opened in Zagreb. At present, there are over 70 professional playgrounds for training of top contestants but also for the citizens who can play recreational badminton. PMID:18949927

  7. 7. Photocopy of painting (Source unknown, Date unknown) EXTERIOR SOUTH ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    7. Photocopy of painting (Source unknown, Date unknown) EXTERIOR SOUTH FRONT VIEW OF MISSION AND CONVENTO AFTER 1913 - Mission San Francisco Solano de Sonoma, First & Spain Streets, Sonoma, Sonoma County, CA

  8. 22. Photocopy of photograph (photographer unknown, date unknown, original print ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    22. Photocopy of photograph (photographer unknown, date unknown, original print in possession of National Park Service, Petrified Forest National Park), EROSION CONTROL IN RIVER NEAR BRIDGE. - Rio Puerco Bridge, Mainline Road, spanning Rio Puerco, Holbrook, Navajo County, AZ

  9. 6. Photocopy of photograph Photographer unknown, date unknown DETAIL OF ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    6. Photocopy of photograph Photographer unknown, date unknown DETAIL OF BOTTOM OF DRUM, SHOWING DECORATIVE MOLDING OF DRUM AND ARCHES: NOTE EFFECT OF BOX BEAMS CREATED BY MOLDING - University of Kentucky, Carnegie Library, Lexington, Fayette County, KY

  10. [Profamilia: immense unknown contribution].

    PubMed

    Ramirez Ocampo, J

    1990-12-01

    In late 1965, when he presented himself to the International Planned Parenthood Federation headquarters in London weeks after founding the Profamilia Foundation, Dr. Fernando Tamayo was an unknown Colombian physician with a mission to modify Colombia's very rapid rate of population growth. Colombia in 1964 has a population of 17.5 million growing at an annual rate of 3.4%. By 1973, the population was 22.9 million and growing at 2.7%. Cultural, religious, and moral obstacles precluded an aggressive family planning campaign, which would have aroused violent resistance. Profamilia personnel worked discreetly but persistently, convinced that they would see few short term results but that their effect would be immense in the long run. Family planning is partly a process of educating families in the health, socioeconomic, and psychological benefits of smaller families. Profamilia has a centralized organization which administers 3 main programs, the clinical program with 40 traditional clinics in major cities and 8 well-accepted male clinics, the sterilization program in clinics and mobile units, and the community-based distribution program which distributes pills, condoms, and IUDs through 3000 community posts under the direction of 120 instructors. Between 1964-90, Colombia's total fertility rate declined from 9.2 to 4.4 in rural areas, from 5.2 to 2.2 in urban areas, and from 7.0 to 2.8 overall. The rate of population growth declined from 3.4 to 1.8%. It has been estimated that over half the decline is due to Profamilia services. The total investment by Profamilia during its history was US $100 million. The average cost of protecting a couple against unwanted pregnancy is US $5.26 per year. Colombia's population is projected to increase from 30 to 54 million between 1985 and 2025 even if the growth rate declines from 1.8% in 1990 to 1.3% in 2025. The most worrisome aspect of the projected growth is its concentration in urban areas, which are already beset by poverty, inadequate basic services, and a limited potential water supply already threatened by deforestation. It is clear that the work of family planning in Colombia is not done and that much remains to be accomplished. PMID:12283633

  11. Learning for an Unknown Future

    ERIC Educational Resources Information Center

    Barnett, Ronald

    2012-01-01

    What is it to learn for an unknown future? It might be said that the future has always been unknown but this question surely takes on a new pedagogical challenge in the contemporary age. Generic skills may seem to offer the basis of just such a learning for an unknown future. Generic skills, by definition, are those that surely hold across…

  12. Constraints on the Z-Z Prime mixing angle from data measured for the process e{sup +}e{sup -} {yields} W{sup +}W{sup -} at the LEP2 collider

    SciTech Connect

    Andreev, Vas. V.; Pankov, A. A.

    2012-01-15

    An analysis of effects induced by new neutral gauge Z Prime bosons was performed on the basis of data from the OPAL, DELPHI, ALEPH, and L3 experiments devoted to measuring differential cross sections for the process of the annihilation production of pairs of charged gauge W{sup {+-}} bosons at the LEP2 collider. By using these experimental data, constraints on the Z Prime -boson mass and on the angle of Z-Z Prime mixing were obtained for a number of extended gauge models.

  13. 50. Photographer unknown Date unknown HUMBOLDT COUNTY, SECTION A, HIGHWAY ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    50. Photographer unknown Date unknown HUMBOLDT COUNTY, SECTION A, HIGHWAY 1. ABANDONED PORTION OF HIGHWAY RECONSTRUCTED 1935 ACROSS RIVER CONNECTING WITH NEW SMITH PT. BR., 1-HUM-1A #203. Stamped office copy. - Redwood National & State Parks Roads, California coast from Crescent City to Trinidad, Crescent City, Del Norte County, CA

  14. Learning for an Unknown Future

    ERIC Educational Resources Information Center

    Barnett, Ronald

    2004-01-01

    What is it to learn for an unknown future? It might be said that the future has always been unknown but our opening question surely takes on a new pedagogical challenge if not urgency in the contemporary age. Indeed, it could be said that our opening question has never been generally acknowledged to be a significant motivating curricular and…

  15. Provenance of unknown plutonium material.

    PubMed

    Nicolaou, G

    2008-10-01

    The determination of the provenance of 'unknown' plutonium material is demonstrated through a simulation study based on an isotopic fingerprinting approach. Plutonium of known provenance was considered as the 'unknown' nuclear material in order to evaluate the potential of the approach and verify its predictive capabilities. Factor analysis was used to compare the Pu isotopic composition of the 'unknown' material with Pu isotopic compositions simulating well known spent fuels from a range of commercial nuclear power stations. The provenance of the 'unknown material' is assigned to the commercial fuel with which exhibits the highest degree of similarity with respect to the Pu composition. The approach appears promising since it accurately predicted the provenance of the one 'unknown' sample considered; nevertheless, the approach is still at the development stage. Important challenging issues related to the simulation uncertainties and its testing on real laboratory samples have to be explored prior to evaluating the potential of the approach. PMID:18639370

  16. Calculation of the flow field in supersonic mixed-compression inlets at angle of attack using the three-dimensional method of characteristics with discrete shock wave fitting

    NASA Technical Reports Server (NTRS)

    Vadyak, J.; Hoffman, J. D.

    1978-01-01

    The influence of molecular transport is included in the computation by treating viscous and thermal diffusion terms in the governing partial differential equations as correction terms in the method of characteristics scheme. The development of a production type computer program is reported which is capable of calculating the flow field in a variety of axisymmetric mixed-compression aircraft inlets. The results agreed well with those produced by the two-dimensional method characteristics when axisymmetric flow fields are computed. For three-dimensional flow fields, the results agree well with experimental data except in regions of high viscous interaction and boundary layer removal.

  17. Measurement of CP asymmetry in a time-dependent Dalitz analysis of B0-->(rhopi)0 and a constraint on the quark mixing matrix angle phi2.

    PubMed

    Kusaka, A; Wang, C C; Ishino, H; Abe, K; Abe, K; Adachi, I; Aihara, H; Anipko, D; Aulchenko, V; Aushev, T; Bakich, A M; Barberio, E; Bay, A; Bedny, I; Belous, K; Bitenc, U; Bizjak, I; Blyth, S; Bondar, A; Bozek, A; Bracko, M; Browder, T E; Chang, M-C; Chang, P; Chao, Y; Chen, A; Chen, K-F; Chen, W T; Cheon, B G; Chistov, R; Choi, S-K; Choi, Y; Choi, Y K; Cole, S; Dalseno, J; Danilov, M; Dash, M; Dragic, J; Drutskoy, A; Eidelman, S; Fratina, S; Fujikawa, M; Gabyshev, N; Garmash, A; Gershon, T; Gokhroo, G; Golob, B; Ha, H; Haba, J; Hara, T; Hastings, N C; Hayasaka, K; Hayashii, H; Hazumi, M; Heffernan, D; Hokuue, T; Hoshi, Y; Hou, S; Hou, W-S; Hsiung, Y B; Iijima, T; Ikado, K; Imoto, A; Inami, K; Ishikawa, A; Itoh, R; Iwasaki, M; Iwasaki, Y; Kaji, H; Kakuno, H; Kang, J H; Kapusta, P; Katayama, N; Kawai, H; Kawasaki, T; Khan, H R; Kichimi, H; Kim, Y J; Kinoshita, K; Korpar, S; Krizan, P; Krokovny, P; Kulasiri, R; Kumar, R; Kuo, C C; Kuzmin, A; Kwon, Y-J; Lee, J; Lee, M J; Lee, S E; Lesiak, T; Limosani, A; Lin, S-W; Liventsev, D; Mandl, F; Marlow, D; Matsumoto, T; Miyabayashi, K; Miyake, H; Miyazaki, Y; Mizuk, R; Mori, T; Nakano, E; Nakao, M; Nakazawa, H; Natkaniec, Z; Nishida, S; Nitoh, O; Noguchi, S; Ogawa, S; Ohshima, T; Okuno, S; Onuki, Y; Ozaki, H; Pakhlov, P; Pakhlova, G; Park, H; Park, K S; Peak, L S; Pestotnik, R; Piilonen, L E; Poluektov, A; Sakai, Y; Satoyama, N; Schneider, O; Schümann, J; Schwartz, A J; Seidl, R; Senyo, K; Sevior, M E; Shapkin, M; Shibuya, H; Singh, J B; Somov, A; Soni, N; Stanic, S; Staric, M; Stoeck, H; Suzuki, S Y; Tajima, O; Takasaki, F; Tamai, K; Tanaka, M; Taylor, G N; Teramoto, Y; Tian, X C; Tikhomirov, I; Trabelsi, K; Tsuboyama, T; Tsukamoto, T; Uehara, S; Uglov, T; Unno, Y; Uno, S; Urquijo, P; Ushiroda, Y; Usov, Y; Varner, G; Villa, S; Wang, C H; Wang, M-Z; Watanabe, Y; Wedd, R; Won, E; Xie, Q L; Yabsley, B D; Yamaguchi, A; Yamashita, Y; Zhang, L M; Zhang, Z P; Zhilich, V; Zupanc, A

    2007-06-01

    We present a measurement of CP asymmetry using a time-dependent Dalitz plot analysis of B0-->pi+pi-pi0 decays based on a 414 fb(-1) data sample containing 449 x 10(6) BB pairs. The data was collected on the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric energy e+ e- collider. Combining our analysis with information on charged B decay modes, we perform a full Dalitz and isospin analysis and obtain a constraint on the CKM angle phi2, 68 degrees < phi2 < 95 degrees as the 68.3% confidence interval for the phi2 solution consistent with the standard model (SM). A large SM-disfavored region also remains. PMID:17677832

  18. Simultaneous analysis of neutrinoless double beta decay and LHC pp-cross sections: limits on the left-right mixing angle

    NASA Astrophysics Data System (ADS)

    Civitarese, O.; Suhonen, J.; Zuber, K.

    2015-09-01

    The extension of the Standard Model of electroweak interactions, to accommodate massive neutrinos and/or right-handed currents, is one of the fundamental questions to answer in the cross-field of particle and nuclear physics. The consequences of such extensions would reflect upon nuclear decays, like the very exotic nuclear double-beta-decay, as well as upon high-energy proton-proton reactions of the type performed at the LHC accelerator. In this talk we shall address this question by looking at the results reported by the ATLAS and CMS collaborations, where the excitation and decay of a heavy-mass boson may be mediated by a heavy-mass neutrino in proton-proton reactions leading to two jets and two leptons, and by extracting limits on the left-right mixing, from the latest measurements of nuclear-double-beta decays reported by the GERDA and EXO collaborations.

  19. Known and unknown unknowns: uncertainty estimation in satellite remote sensing

    NASA Astrophysics Data System (ADS)

    Povey, A. C.; Grainger, R. G.

    2015-11-01

    This paper discusses a best-practice representation of uncertainty in satellite remote sensing data. An estimate of uncertainty is necessary to make appropriate use of the information conveyed by a measurement. Traditional error propagation quantifies the uncertainty in a measurement due to well-understood perturbations in a measurement and in auxiliary data - known, quantified "unknowns". The under-constrained nature of most satellite remote sensing observations requires the use of various approximations and assumptions that produce non-linear systematic errors that are not readily assessed - known, unquantifiable "unknowns". Additional errors result from the inability to resolve all scales of variation in the measured quantity - unknown "unknowns". The latter two categories of error are dominant in under-constrained remote sensing retrievals, and the difficulty of their quantification limits the utility of existing uncertainty estimates, degrading confidence in such data. This paper proposes the use of ensemble techniques to present multiple self-consistent realisations of a data set as a means of depicting unquantified uncertainties. These are generated using various systems (different algorithms or forward models) believed to be appropriate to the conditions observed. Benefiting from the experience of the climate modelling community, an ensemble provides a user with a more complete representation of the uncertainty as understood by the data producer and greater freedom to consider different realisations of the data.

  20. Celestin Freinet, the Unknown Reformer.

    ERIC Educational Resources Information Center

    Lee, William B.

    1983-01-01

    Although unknown in the United States, Celestin Freinet founded in France an influential educational reform movement, Ecole Moderne, based on four principles: (1) democratic values, (2) empiricism, (3) interaction with nature and life, and (4) work as a basic human need. (SK)

  1. Allocating monitoring effort in the face of unknown unknowns

    USGS Publications Warehouse

    Wintle, B.A.; Runge, M.C.; Bekessy, S.A.

    2010-01-01

    There is a growing view that to make efficient use of resources, ecological monitoring should be hypothesis-driven and targeted to address specific management questions. 'Targeted' monitoring has been contrasted with other approaches in which a range of quantities are monitored in case they exhibit an alarming trend or provide ad hoc ecological insights. The second form of monitoring, described as surveillance, has been criticized because it does not usually aim to discern between competing hypotheses, and its benefits are harder to identify a priori. The alternative view is that the existence of surveillance data may enable rapid corroboration of emerging hypotheses or help to detect important 'unknown unknowns' that, if undetected, could lead to catastrophic outcomes or missed opportunities. We derive a model to evaluate and compare the efficiency of investments in surveillance and targeted monitoring. We find that a decision to invest in surveillance monitoring may be defensible if: (1) the surveillance design is more likely to discover or corroborate previously unknown phenomena than a targeted design and (2) the expected benefits (or avoided costs) arising from discovery are substantially higher than those arising from a well-planned targeted design. Our examination highlights the importance of being explicit about the objectives, costs and expected benefits of monitoring in a decision analytic framework. ?? 2010 Blackwell Publishing Ltd/CNRS.

  2. Photographic copy of photograph, photographer unknown, 29 July 1911 (original ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Photographic copy of photograph, photographer unknown, 29 July 1911 (original print located at U.S. Bureau of Reclamation Upper Columbia Area Office, Yakima, Washington). "NEW CONCRETE MIXING PLANT" - Kachess Dam, Inlet Channel, Kachess River, 1.5 miles north of Interstate 90, Easton, Kittitas County, WA

  3. Photographic copy of photograph, photographer unknown, 29 July 1911 (original ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Photographic copy of photograph, photographer unknown, 29 July 1911 (original print located at U.S. Bureau of Reclamation Upper Columbia Area Office, Yakima, Washington). "NEW SAND AND GRAVEL BIN AND CONCRETE MIXING PLANT" - Kachess Dam, Inlet Channel, Kachess River, 1.5 miles north of Interstate 90, Easton, Kittitas County, WA

  4. [Recurrent seizures of unknown aetiology].

    PubMed

    Krauß, Martha; Berkermann, Heiner; Ghadimi, Michael; Gaedcke, Jochen; Bürger, Tobias

    2016-04-01

    History and admission findings | A 41year old woman presented at our internistic clinic after treatment by an emergency doctor because of confusion and amnesia accompanied by a hypoglycaemic episode while driving her car. Only by giving continuous glucose intravenously a stable clinical state could be achieved. In her medical history she took Lamotrigin for 12 years since she had seizures of unknown aetiology. 16 years ago she had similar sudden attacks with confusion and hypoglycaemia. At that time thorough diagnostics at the clinic for internal medicine did not reveal any evidence for hyperinsulinaemia. While taking Lamotrigin the patient had no seizures or similar symptoms for 12 years. Treatment and course | In the present case we detected a tumor in the pancreas and a two-fold increased insulin secretion. Histopathological work-up of the removed tissue confirmed the suspected diagnosis of insulinoma. Postoperatively, Lamotrigin treatment was terminated. Since then the patient remained asymptomatic. PMID:27123728

  5. K{sub 1}(1270)-K{sub 1}(1400) mixing angle and new-physics effects in B{yields}K{sub 1}l{sup +}l{sup -} decays

    SciTech Connect

    Hatanaka, Hisaki; Yang, K.-C.

    2008-10-01

    We study semileptonic B meson decays B{yields}K{sub 1}(1270)l{sup +}l{sup -} and K{sub 1}(1400)l{sup +}l{sup -} (l{identical_to}e, {mu}, {tau}), where the strange P-wave mesons, K{sub 1}(1270) and K{sub 1}(1400), are the mixtures of the K{sub 1A} and K{sub 1B}, which are the 1{sup 3}P{sub 1} and 1{sup 1}P{sub 1} states, respectively. We show that the ratio R{sub l}{identical_to}B(B{yields}K{sub 1}(1400)l{sup +}l{sup -})/B(B{yields}K{sub 1}(1270)l{sup +}l{sup -}), insensitive to new-physics parameters, is suitable for determining the K{sub 1}(1270)-K{sub 1}(1400) mixing angle, {theta}{sub K{sub 1}}. The forward-backward asymmetry shows a weak {theta}{sub K{sub 1}} dependence for B{yields}K{sub 1}(1270){mu}{sup +}{mu}{sup -}, but relatively strong for B{yields}K{sub 1}(1400){mu}{sup +}{mu}{sup -}. We investigate model-independent new-physics corrections to operators relevant to the b{yields}sl{sup +}l{sup -} electroweak-penguin and weak-box diagrams. Furthermore, for the B{yields}K{sub 1}(1270){mu}{sup +}{mu}{sup -} decay the position of the forward-backward asymmetry zero, which is almost independent of the value of {theta}{sub K{sub 1}}, can be dramatically changed under variation of new-physics parameters.

  6. Search in unknown random environments.

    PubMed

    Gelenbe, Erol

    2010-12-01

    N searchers are sent out by a source in order to locate a fixed object which is at a finite distance D, but the search space is infinite and D would be in general unknown. Each of the searchers has a finite random lifetime, and may be subject to destruction or failures, and it moves independently of other searchers, and at intermediate locations some partial random information may be available about which way to go. When a searcher is destroyed or disabled, or when it "dies naturally," after some time the source becomes aware of this and it sends out another searcher, which proceeds similarly to the one that it replaces. The search ends when one of the searchers finds the object being sought. We use N coupled brownian motions to derive a closed form expression for the average search time as a function of D which will depend on the parameters of the problem: the number of searchers, the average lifetime of searchers, the routing uncertainty, and the failure or destruction rate of searchers. We also examine the cost in terms of the total energy that is expended in the search. PMID:21230649

  7. [Archaeons--still unknown microorganisms].

    PubMed

    Efenberger, Magdalena; Brzezińska-Błaszczyk, Ewa; Wódz, Karolina

    2014-01-01

    Archaea is a group of microorganisms described by Carl Woese in 1977. Although Archaea have a similar cellular organization to bacteria, their cell wall and cell membrane are quite unique. Archaeal cell wall lacks peptidoglican and cell membrane is composed of ether-lipids which are far more stable than bacteria-specific esther-lipids. Besides, Archaea have some specific external structures, like: archaella, pili, hami and cannulae but their exact functions are still unclear. Most of Archaea obtain energy via anaerobic processes of simple inorganic or organic compounds, however some of these organisms are also able to generate methane in the process known as methanogesis. They reproduce by cell division or budding-like process and some studies demonstrated the mechanisms of genetic transfer such as conjugation, transduction and natural transformation for the Archaea. They are capable of forming biofilms also in interaction with bacteria. Some archaeons, such as Haloferax mediterranei and Sulfolobus islandicus can synthesize antimicrobial agents which are called archaeocins. In recent years huge progress has been made in understanding of Archaea but many aspects of their biology remain still unknown. In this review, we present recent advances in Archaea biology focusing mainly on archaeal morphology, metabolism and reproduction. PMID:25531709

  8. [Energy drinks: an unknown risk].

    PubMed

    Petit, Aymeric; Levy, Fanny; Lejoyeux, Michel; Reynaud, Michel; Karila, Laurent

    2012-05-01

    The term "energy drink" designates "any product in the form of a drink or concentrated liquid, which claims to contain a mixture of ingredients having the property to raise the level of energy and vivacity". The main brands, Red Bull, Dark Dog, Rockstar, Burn, and Monster, are present in food stores, sports venues, and bars among other soft drinks and fruit juices. Their introduction into the French market raised many reluctances, because of the presence of taurine, caffeine and glucuronolactone. These components present in high concentrations, could be responsible for adverse effects on health. The association of energy drinks and spirits is widely found among adolescents and adults who justify drinking these mixed drinks by their desire to drink more alcohol while delaying drunkenness. Given the importance of the number of incidents reported among the energy drinks consumers, it seemed appropriate to make a synthesis of available data and to establish causal links between the use of these products and the development of health complications. For a literature review, we selected scientific articles both in English and French published between 2001 and 2011 by consulting the databases Medline, Embase, PsycINFO and Google Scholar. The words used alone or in combination are "energy dinks", "caffeine", "taurine", "toxicity", "dependence". An occasional to a moderate consumption of these drinks seems to present little risk for healthy adults. However, excessive consumption associated with the use of alcohol or drugs in amounts that far exceed the manufacturers recommended amount, could be responsible for negative consequences on health, particularly among subjects with cardiovascular disease. PMID:22730801

  9. rac-N-Benzyl-isatincreatinine (unknown solvate).

    PubMed

    Penthala, Narsimha Reddy; Crooks, Peter A

    2013-02-01

    The title compound, C(19)H(18)N(4)O(3) [systematic name: (RS)-1-benzyl-3-hy-droxy-3-(2-imino-3-methyl-5-oxoimidazolidin-4-yl)-2,3-dihydro-1H-indol-2-one], was prepared as a racemate (RR and SS) by the aldol condensation of N-benzyl-isatin with creatinine in the presence of sodium acetate in acetic acid. The r.m.s. deviation of the isatin ring system is 0.033 Å. The benzyl group is disordered over two orientations, with refined occupancies of 0.847 (7) and 0.153 (7). The dihedral angles between the isatin ring system and the benzene ring (major disorder component) and the imidazole ring are 82.82 (7) and 51.31 (3)°, respectively, In the crystal, mol-ecules are linked into (001) sheets by N-H⋯O and O-H⋯N hydrogen bonds, which incorporate R(2) (2)(9) ring motifs. The crystal was grown from mixed solvents (ethanol, methanol and possibly also ethyl acetate). These solvents are disordered in the crystal and the resulting electron density was found to be uninter-pretable. The solvent contribution to the scattering was removed with the SQUEEZE routine in PLATON [Spek (2009 ▶). Acta Cryst. D65, 148-155]. The formula mass and density do not take account of the solvent. PMID:23424560

  10. Pattern Recognition Algorithm for High-Sensitivity Odorant Detection in Unknown Environments

    NASA Technical Reports Server (NTRS)

    Duong, Tuan A.

    2012-01-01

    In a realistic odorant detection application environment, the collected sensory data is a mix of unknown chemicals with unknown concentrations and noise. The identification of the odorants among these mixtures is a challenge in data recognition. In addition, deriving their individual concentrations in the mix is also a challenge. A deterministic analytical model was developed to accurately identify odorants and calculate their concentrations in a mixture with noisy data.

  11. A Simulation Study Comparison of Bayesian Estimation with Conventional Methods for Estimating Unknown Change Points

    ERIC Educational Resources Information Center

    Wang, Lijuan; McArdle, John J.

    2008-01-01

    The main purpose of this research is to evaluate the performance of a Bayesian approach for estimating unknown change points using Monte Carlo simulations. The univariate and bivariate unknown change point mixed models were presented and the basic idea of the Bayesian approach for estimating the models was discussed. The performance of Bayesian…

  12. Mixed micelles of gangliosides

    SciTech Connect

    Cantu, L. ); Corti, M.; Degiorgio, V. )

    1990-01-25

    The aggregation number and the hydrodynamic radius of micelles formed by mixtures of two distinct gangliosides (biological glycolipids) have been measured by static and dynamic light scattering and small-angle neutron scattering. The experimental data indicate that a nonideal mixing of the two amphiphiles occurs in the mixed micelle and that the shape of the mixed micelle may become more asymmetrical than that of the micelles of the pure gangliosides.

  13. Circuitry for Angle Measurements

    NASA Technical Reports Server (NTRS)

    Currie, J. R.; Kissel, R. R.

    1983-01-01

    Angle resolver pulsed and read under microprocessor control. Pulse generator excites resolver windings with dual slope pulse. System sequentially reads sine and cosine windings. Microprocessor determines angle through which resolver shaft turned from reference angle. Suitable applications include rate tables, antenna direction controllers, and machine tools.

  14. 53. Photographer unknown, date unknown. E.C. COLLIER under sail, dredging ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    53. Photographer unknown, date unknown. E.C. COLLIER under sail, dredging oysters. Please credit Chesapeake Bay Maritime Museum, St. Michaels, Maryland. - Two-Sail Bateau E. C. COLLIER, Chesapeake Bay Maritime Museum, Mills Street, Saint Michaels, Talbot County, MD

  15. Estimability of thrusting trajectories in 3-D from a single passive sensor with unknown launch point

    NASA Astrophysics Data System (ADS)

    Yuan, Ting; Bar-Shalom, Yaakov; Willett, Peter; Ben-Dov, R.; Pollak, S.

    2013-09-01

    The problem of estimating the state of thrusting/ballistic endoatmospheric projectiles moving in 3-dimensional (3-D) space using 2-dimensional (2-D) measurements from a single passive sensor is investigated. The location of projectile's launch point (LP) is unavailable and this could significantly affect the performance of the estimation and the IPP. The LP altitude is then an unknown target parameter. The estimability is analyzed based on the Fisher Information Matrix (FIM) of the target parameter vector, comprising the initial launch (azimuth and elevation) angles, drag coefficient, thrust and the LP altitude, which determine the trajectory according to a nonlinear motion equation. The full rank of the FIM ensures that one has an estimable target parameters. The corresponding Craḿer-Rao lower bound (CRLB) quantifies the estimation performance of the estimator that is statistically efficient and can be used for IPP. In view of the inherent nonlinearity of the problem, the maximum likelihood (ML) estimate of the target parameter vector is found by using a mixed (partially grid-based) search approach. For a selected grid in the drag-coefficient-thrust-altitude subspace, the proposed parallelizable approach is shown to have reliable estimation performance and further leads to the final IPP of high accuracy.

  16. Intelligent Mobile Robot Control in Unknown Environments

    NASA Astrophysics Data System (ADS)

    Mester, Gyula

    This paper gives the fuzzy reactive control of a wheeled mobile robot motion in an unknown environment with obstacles. The model of the vehicle has two driving wheels and the angular velocities of the two wheels are independently controlled. When the vehicle is moving towards the target and the sensors detect an obstacle, an avoiding strategy is necessary. We proposed a fuzzy reactive navigation strategy of collision-free motion in an unknown environment with obstacles. First, the vehicle kinematics constraints and kinematics model are analyzed. Then the fuzzy reactive control of a wheeled mobile robot motion in an unknown environment with obstacles is proposed. Output of the fuzzy controller is the angular speed difference between the left and right wheels (wheel angular speed correction) of the vehicle. The simulation results show the effectiveness and the validity of the obstacle avoidance behavior in an unknown environment of the proposed fuzzy control strategy.

  17. 1. Photocopy of photograph (Source unknown, 1886 (?) ) Photographer ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. Photocopy of photograph (Source unknown, 1886 (?) ) Photographer unknown, Date unknown GENERAL VIEW LOOKING UP POWELL STREET FROM MARKET STREET - Powell Street, San Francisco, San Francisco County, CA

  18. On graphically representing the confidence region for an unknown rotation in three dimensions

    USGS Publications Warehouse

    Hanna, M.S.; Chang, T.

    1990-01-01

    In assessing the errors involved in reconstructing tectonic plate rotations, it is desirable to have confidence regions for the unknown rotation. This paper presents a method for graphing such confidence regions, which exhibits the dependence of the range of possible angles of rotation on the axis considered. Namely, the minimum and maximum angles of rotation are graphed as functions of axis longitude and latitude. A FORTRAN 77 program SPHEREREGRESS is given which, under a variety of probabilistic models for the data, generates grid matrices which are used to draw contour maps of the minimum and maximum angles of rotation. ?? 1990.

  19. Creating a Superposition of Unknown Quantum States.

    PubMed

    Oszmaniec, Michał; Grudka, Andrzej; Horodecki, Michał; Wójcik, Antoni

    2016-03-18

    The superposition principle is one of the landmarks of quantum mechanics. The importance of quantum superpositions provokes questions about the limitations that quantum mechanics itself imposes on the possibility of their generation. In this work, we systematically study the problem of the creation of superpositions of unknown quantum states. First, we prove a no-go theorem that forbids the existence of a universal probabilistic quantum protocol producing a superposition of two unknown quantum states. Second, we provide an explicit probabilistic protocol generating a superposition of two unknown states, each having a fixed overlap with the known referential pure state. The protocol can be applied to generate coherent superposition of results of independent runs of subroutines in a quantum computer. Moreover, in the context of quantum optics it can be used to efficiently generate highly nonclassical states or non-Gaussian states. PMID:27035290

  20. Creating a Superposition of Unknown Quantum States

    NASA Astrophysics Data System (ADS)

    Oszmaniec, Michał; Grudka, Andrzej; Horodecki, Michał; Wójcik, Antoni

    2016-03-01

    The superposition principle is one of the landmarks of quantum mechanics. The importance of quantum superpositions provokes questions about the limitations that quantum mechanics itself imposes on the possibility of their generation. In this work, we systematically study the problem of the creation of superpositions of unknown quantum states. First, we prove a no-go theorem that forbids the existence of a universal probabilistic quantum protocol producing a superposition of two unknown quantum states. Second, we provide an explicit probabilistic protocol generating a superposition of two unknown states, each having a fixed overlap with the known referential pure state. The protocol can be applied to generate coherent superposition of results of independent runs of subroutines in a quantum computer. Moreover, in the context of quantum optics it can be used to efficiently generate highly nonclassical states or non-Gaussian states.

  1. Reading Angles in Maps

    ERIC Educational Resources Information Center

    Izard, Vronique; O'Donnell, Evan; Spelke, Elizabeth S.

    2014-01-01

    Preschool children can navigate by simple geometric maps of the environment, but the nature of the geometric relations they use in map reading remains unclear. Here, children were tested specifically on their sensitivity to angle. Forty-eight children (age 47:15-53:30months) were presented with fragments of geometric maps, in which angle sections

  2. Reading Angles in Maps

    ERIC Educational Resources Information Center

    Izard, Véronique; O'Donnell, Evan; Spelke, Elizabeth S.

    2014-01-01

    Preschool children can navigate by simple geometric maps of the environment, but the nature of the geometric relations they use in map reading remains unclear. Here, children were tested specifically on their sensitivity to angle. Forty-eight children (age 47:15-53:30 months) were presented with fragments of geometric maps, in which angle sections…

  3. Conquering the Unknown: Exploring the Options

    ERIC Educational Resources Information Center

    Baker, Lynne M.

    2012-01-01

    There are many challenges that lie ahead for families of children with special needs. It is indeed a time for conquering the unknown and diligently exploring the options in an effort to locate, understand, and ultimately embrace the as yet undiscovered beauties of the new setting. This paper will consider some of the issues relevant for parents,…

  4. [Pavlov's unknown letter to L. A. Orbely].

    PubMed

    Budko, A A; Nazartsev, B I

    2012-07-01

    The text of Ivan P. Pavlov's unknown letter addressed to Leon A. Orbely is published for the first time. The document is kept in the Fund of the Military Medical Museum of the Military Medical Academy named after Sergey M. Kirov. PMID:23074838

  5. Unknown Vocabulary Density and Reading Comprehension.

    ERIC Educational Resources Information Center

    Hsueh-Chao, Marcella Hu; Nation, Paul

    2000-01-01

    Examines what percentage of coverage of text is needed for unassisted reading for pleasure, where learners are able to read without the interruption of looking up words. Looks at the effect of three densities of unknown vocabulary on two measures of reading comprehension, a multiple-choice test and a cued written recall test. (Author/VWL)

  6. 14. Photocopy of photograph (source unknown) photographer unknown pre1885 NORTH ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    14. Photocopy of photograph (source unknown) photographer unknown pre-1885 NORTH SIDE AND WEST FRONT (NOTE ABSENCE OF DORMER ON GAMBREL ROOF OF ELL) (Illustration #6 of Data Report included in Field Records) - Narbonne House, 71 Essex Street, Salem, Essex County, MA

  7. Diffraction-limited imaging of unknown objects through fixed unknown aberrations using interferometry

    NASA Astrophysics Data System (ADS)

    Roddier, Claude; Roddier, Francois

    1990-10-01

    Diffraction-limited imaging of unknown objects through fixed unknown aberrations is demonstrated using rotational shear interferograms. Objects are assumed to be fully incoherent. No reference point source is used to calibrate the effects of aberrations. Several algorithms are described, and two are successfully used to reconstruct extended objects. Best results are obtained by combining the two successful ones.

  8. Problems Dealing with Unknown Quantities and Two Different Levels of Representing Unknowns

    ERIC Educational Resources Information Center

    Filloy, Eugenio; Rojano, Teresa; Solares, Armando

    2010-01-01

    This article centers on studying the progress of algebraic syntax once students have surmounted initial obstacles found in the transition toward symbolic algebra. It specifically analyzes students' progress concerning the operation on the unknown, when the latter is represented by an expression that involves a 2nd unknown. In curricular terms,

  9. Photoelectric angle converter

    NASA Astrophysics Data System (ADS)

    Podzharenko, Volodymyr A.; Kulakov, Pavlo I.

    2001-06-01

    The photo-electric angle transmitter of rotation is offered, at which the output voltage is linear function of entering magnitude. In a transmitter the linear phototransducer is used on the basis of pair photo diode -- operating amplifier, which output voltage is linear function of the area of an illuminated photosensitive stratum, and modulator of a light stream of the special shape, which ensures a linear dependence of this area from an angle of rotation. The transmitter has good frequent properties and can be used for dynamic measurements of an angular velocity and angle of rotation, in systems of exact drives and systems of autocontrol.

  10. Carcinoma of unknown primary and paraneoplastic dermatomyositis

    PubMed Central

    Sonnenblick, Amir

    2015-01-01

    Dermatomyositis is known to be associated with neoplastic disorders, however the presentation of carcinoma of unknown primary as dermatomyositis is rare. We describe a case index of 50-year-old female who presented with enlarged inguinal lymph nodes accompanied with symmetric proximal muscle weakness and erythematous plaques. Conventional basic work-up did not reveal the diagnosis, however, positron emission tomography-computed tomography and re-staining of the pathology specimen suggested the ovaries as the primary site. Chemotherapy including carboplatin paclitaxel and bevacizumab led to complete response of disease and improvement in the dermatomyositis. The present case emphasizes the importance of a thorough directed evaluation for the underlying cancer in patients with carcinoma of unknown primary presenting as dermatomyositis. We further provide an up-to-date detailed review of published data describing these clinical entities. PMID:26677443

  11. Management of neuroendocrine tumors of unknown origin.

    PubMed

    Polish, Ariel; Vergo, Maxwell T; Agulnik, Mark

    2011-12-01

    Neuroendocrine tumors (NETs) of unknown origin account for more than 10% of all NETs. Most of these tumors are poorly differentiated and, thus, very aggressive. Establishing the location of the primary tumor can be challenging. Workup of these NETs of unknown origin includes a thorough family history, immunohistochemistry, imaging, and OctreoScan. If the location of the primary malignancy is not determined, treatment is often initiated based on the grade and level of differentiation of the tumor, with well- and moderately differentiated tumors treated as carcinoid tumors, whereas poorly differentiated tumors are treated similarly to small cell tumors. Therapy is chosen based on symptoms and with the goal of debulking tumor when feasible and safe. PMID:22157557

  12. Unified sensor management in unknown dynamic clutter

    NASA Astrophysics Data System (ADS)

    Mahler, Ronald; El-Fallah, Adel

    2010-04-01

    In recent years the first author has developed a unified, computationally tractable approach to multisensor-multitarget sensor management. This approach consists of closed-loop recursion of a PHD or CPHD filter with maximization of a "natural" sensor management objective function called PENT (posterior expected number of targets). In this paper we extend this approach so that it can be used in unknown, dynamic clutter backgrounds.

  13. Angles, Time, and Proportion

    ERIC Educational Resources Information Center

    Pagni, David L.

    2005-01-01

    This article describes an investigation making connections between the time on an analog clock and the angle between the minute hand and the hour hand. It was posed by a middle school mathematics teacher. (Contains 8 tables and 6 figures.)

  14. Neurofunctional Signature of Hyperfamiliarity for Unknown Faces

    PubMed Central

    Negro, Elisa; D’Agata, Federico; Caroppo, Paola; Coriasco, Mario; Ferrio, Federica; Celeghin, Alessia; Diano, Matteo; Rubino, Elisa; de Gelder, Beatrice; Rainero, Innocenzo; Pinessi, Lorenzo; Tamietto, Marco

    2015-01-01

    Hyperfamiliarity for unknown faces is a rare selective disorder that consists of the disturbing and abnormal feeling of familiarity for unknown faces, while recognition of known faces is normal. In one such patient we investigated with a multimodal neuroimaging design the hitherto undescribed neural signature associated with hyperfamiliarity feelings. Behaviorally, signal detection methods revealed that the patient’s discrimination sensitivity between familiar and unfamiliar faces was significantly lower than that of matched controls, and her response criterion for familiarity decisions was significantly more liberal. At the neural level, while morphometric analysis and single-photon emission CT (SPECT) showed the atrophy and hypofunctioning of the left temporal regions, functional magnetic resonance imaging (fMRI) revealed that hyperfamiliarity feelings were selectively associated to enhanced activity in the right medial and inferior temporal cortices. We therefore characterize the neurofunctional signature of hyperfamiliarity for unknown faces as related to the loss of coordinated activity between the complementary face processing functions of the left and right temporal lobes. PMID:26154253

  15. ``Magic Angle Precession''

    NASA Astrophysics Data System (ADS)

    Binder, Bernd

    2008-01-01

    An advanced and exact geometric description of nonlinear precession dynamics modeling very accurately natural and artificial couplings showing Lorentz symmetry is derived. In the linear description it is usually ignored that the geometric phase of relativistic motion couples back to the orbital motion providing for a non-linear recursive precession dynamics. The high coupling strength in the nonlinear case is found to be a gravitomagnetic charge proportional to the precession angle and angular velocity generated by geometric phases, which are induced by high-speed relativistic rotations and are relevant to propulsion technologies but also to basic interactions. In the quantum range some magic precession angles indicating strong coupling in a phase-locked chaotic system are identified, emerging from a discrete time dynamical system known as the cosine map showing bifurcations at special precession angles relevant to heavy nuclei stability. The "Magic Angle Precession" (MAP) dynamics can be simulated and visualized by cones rolling in or on each other, where the apex and precession angles are indexed by spin, charge or precession quantum numbers, and corresponding magic angles. The most extreme relativistic warping and twisting effect is given by the Dirac spinor half spin constellation with "Hyperdiamond" MAP, which resembles quark confinement.

  16. 'Magic Angle Precession'

    SciTech Connect

    Binder, Bernd

    2008-01-21

    An advanced and exact geometric description of nonlinear precession dynamics modeling very accurately natural and artificial couplings showing Lorentz symmetry is derived. In the linear description it is usually ignored that the geometric phase of relativistic motion couples back to the orbital motion providing for a non-linear recursive precession dynamics. The high coupling strength in the nonlinear case is found to be a gravitomagnetic charge proportional to the precession angle and angular velocity generated by geometric phases, which are induced by high-speed relativistic rotations and are relevant to propulsion technologies but also to basic interactions. In the quantum range some magic precession angles indicating strong coupling in a phase-locked chaotic system are identified, emerging from a discrete time dynamical system known as the cosine map showing bifurcations at special precession angles relevant to heavy nuclei stability. The 'Magic Angle Precession' (MAP) dynamics can be simulated and visualized by cones rolling in or on each other, where the apex and precession angles are indexed by spin, charge or precession quantum numbers, and corresponding magic angles. The most extreme relativistic warping and twisting effect is given by the Dirac spinor half spin constellation with 'Hyperdiamond' MAP, which resembles quark confinement.

  17. Space Invariant Independent Component Analysis and ENose for Detection of Selective Chemicals in an Unknown Environment

    NASA Technical Reports Server (NTRS)

    Duong, Tuan A.; Ryan, Margaret A.; Duong, Vu A.

    2007-01-01

    In this paper, we present a space invariant architecture to enable the Independent Component Analysis (ICA) to solve chemical detection from two unknown mixing chemical sources. The two sets of unknown paired mixture sources are collected via JPL 16-ENose sensor array in the unknown environment with, at most, 12 samples data collected. Our space invariant architecture along with the maximum entropy information technique by Bell and Sejnowski and natural gradient descent by Amari has demonstrated that it is effective to separate the two mixing unknown chemical sources with unknown mixing levels to the array of two original sources under insufficient sampled data. From separated sources, they can be identified by projecting them on the 11 known chemical sources to find the best match for detection. We also present the results of our simulations. These simulations have shown that 100% correct detection could be achieved under the two cases: a) under-completed case where the number of input (mixtures) is larger than number of original chemical sources; and b) regular case where the number of input is as the same as the number of sources while the time invariant architecture approach may face the obstacles: overcomplete case, insufficient data and cumbersome architecture.

  18. Angles and Daemons: Spin Correlations at the LHC

    SciTech Connect

    Tran, Nhan V.

    2011-01-01

    The Large Hadron Collider has recently started collecting data, opening a new energy regime. This will allow us to probe further than ever before many of the current mysteries of the field. New physics beyond the Standard Model, the field's current paradigm, could manifest itself via new particles. In addition, the Higgs boson, hypothesized as a consequence of electroweak symmetry breaking, remains undiscovered. At the time of discovery, the properties of such particles will be unknown. In order to understand the nature of any new physics, it will be important to understand the properties of that new particle. Methods are presented for measuring its spin, parity and coupling to the Standard Model particles. These methods are implemented at the Compact Muon Solenoid experiment and an analysis is presented with the data collected during 2010 and 2011 running at the Large Hadron Collider. An application of these techniques is used to make a measurement of the weak mixing angle. A current status of the search for the Higgs boson is also presented.

  19. Mixed cryoglobulinemia

    PubMed Central

    Ferri, Clodoveo

    2008-01-01

    Mixed cryoglobulinemia (MC), type II and type III, refers to the presence of circulating cryoprecipitable immune complexes in the serum and manifests clinically by a classical triad of purpura, weakness and arthralgias. It is considered to be a rare disorder, but its true prevalence remains unknown. The disease is more common in Southern Europe than in Northern Europe or Northern America. The prevalence of 'essential' MC is reported as approximately 1:100,000 (with a female-to-male ratio 3:1), but this term is now used to refer to a minority of MC patients only. MC is characterized by variable organ involvement including skin lesions (orthostatic purpura, ulcers), chronic hepatitis, membranoproliferative glomerulonephritis, peripheral neuropathy, diffuse vasculitis, and, less frequently, interstitial lung involvement and endocrine disorders. Some patients may develop lymphatic and hepatic malignancies, usually as a late complication. MC may be associated with numerous infectious or immunological diseases. When isolated, MC may represent a distinct disease, the so-called 'essential' MC. The etiopathogenesis of MC is not completely understood. Hepatitis C virus (HCV) infection is suggested to play a causative role, with the contribution of genetic and/or environmental factors. Moreover, MC may be associated with other infectious agents or immunological disorders, such as human immunodeficiency virus (HIV) infection or primary Sjögren's syndrome. Diagnosis is based on clinical and laboratory findings. Circulating mixed cryoglobulins, low C4 levels and orthostatic skin purpura are the hallmarks of the disease. Leukocytoclastic vasculitis involving medium- and, more often, small-sized blood vessels is the typical pathological finding, easily detectable by means of skin biopsy of recent vasculitic lesions. Differential diagnoses include a wide range of systemic, infectious and neoplastic disorders, mainly autoimmune hepatitis, Sjögren's syndrome, polyarthritis, and B-cell lymphomas. The first-line treatment of MC should focus on eradication of HCV by combined interferon-ribavirin treatment. Pathogenetic treatments (immunosuppressors, corticosteroids, and/or plasmapheresis) should be tailored to each patient according to the progression and severity of the clinical manifestations. Long-term monitoring is recommended in all MC patients to assure timely diagnosis and treatment of the life-threatening complications. The overall prognosis is poorer in patients with renal disease, liver failure, lymphoproliferative disease and malignancies. PMID:18796155

  20. Casting and Angling.

    ERIC Educational Resources Information Center

    Smith, Julian W.

    As part of a series of books and pamphlets on outdoor education, this manual consists of easy-to-follow instructions for fishing activities dealing with casting and angling. The manual may be used as a part of the regular physical education program in schools and colleges or as a club activity for the accomplished weekend fisherman or the…

  1. Autonomous exploration and mapping of unknown environments

    NASA Astrophysics Data System (ADS)

    Owens, Jason; Osteen, Phil; Fields, MaryAnne

    2012-06-01

    Autonomous exploration and mapping is a vital capability for future robotic systems expected to function in arbitrary complex environments. In this paper, we describe an end-to-end robotic solution for remotely mapping buildings. For a typical mapping system, an unmanned system is directed to enter an unknown building at a distance, sense the internal structure, and, barring additional tasks, while in situ, create a 2-D map of the building. This map provides a useful and intuitive representation of the environment for the remote operator. We have integrated a robust mapping and exploration system utilizing laser range scanners and RGB-D cameras, and we demonstrate an exploration and metacognition algorithm on a robotic platform. The algorithm allows the robot to safely navigate the building, explore the interior, report significant features to the operator, and generate a consistent map - all while maintaining localization.

  2. Fever of unknown origin in returning travellers.

    PubMed

    Korzeniewski, Krzysztof; Gaweł, Bartłomiej; Krankowska, Dagny; Wasilczuk, Katarzyna

    2015-01-01

    The aim of the article is to discuss issues associated with the occurrence of febrile illnesses in leisure and business travellers, with a particular emphasis on fevers of unknown origin (FUO). FUO, apart from diarrhoeas, respiratory tract infections and skin lesions, are one of the most common health problems in travellers to tropical and subtropical countries. FUO are manifestations of various diseases, typically of infectious or invasive aetiology. In one out of 3 cases, the cause of a fever in travellers returning from the hot climate zone is malaria, and therefore diagnostic tests should first aim at ruling out this specific disease entity. Other illnesses with persistent fever include dengue, enteric fever, viral hepatitis A, bacterial diarrhoeas and rickettsioses. Fever may also occur in travellers suffering from diseases of non-tropical origin, e.g. cosmopolitan respiratory tract or urinary tract infections, also, fever may coexist with other illnesses or injuries (skin rashes, bites, burns). PMID:26119676

  3. Unknown components of the plastidial permeome

    PubMed Central

    Pick, Thea R.; Weber, Andreas P. M.

    2014-01-01

    Beyond their role in photosynthesis plastids provide a plethora of additional metabolic functions to plant cells. For example, they harbor complete biosynthetic pathways for the de novo synthesis of carotenoids, fatty acids, and amino acids. Furthermore plastids contribute important reactions to multi-compartmentalized pathways, such as photorespiration or plant hormone syntheses, and they depend on the import of essential molecules that they cannot synthesize themselves, such as ascorbic acid. This causes a high traffic of metabolites across the plastid envelope. Although it was recently shown that non-polar substrates could be exchanged between the plastid and the ER without involving transporters, various essential transport processes are mediated by highly selective but still unknown metabolite transporters. This review focuses on selected components of the plastidial permeome that are predicted to exist but that have not yet been identified as molecular entities, such as the transporters for isopentenyl diphosphate (IPP) or ascorbic acid. PMID:25191333

  4. Necrotizing cervical fasciitis of unknown origin.

    PubMed

    Gillis, A R; Gillis, T M

    1992-06-01

    Necrotizing fasciitis is an acute soft-tissue infection rarely seen in the head and neck area. The case of a 29-year-old female with necrotizing cervical fasciitis of unknown origin is presented. These infections usually result from dental infections; this patient, however, denied any associated dental problems. The patient presented with an erythematous swelling over the anterior neck associated with a choking sensation and an elevated WBC suggestive of acute thyroiditis. After three days of hospitalization the skin over the anterior neck area became necrotic. Surgical debridement of the area was undertaken with significant improvement. Once wound healing had commenced a pedicled flap was used to reconstruct the large defect. Flap selection for closure of the defect is discussed. It is apparent that early recognition and surgical debridement of necrotizing fasciitis is vital to ensure a rapid recovery. PMID:1404565

  5. An Access To The Unknown Kuiper Belt

    NASA Astrophysics Data System (ADS)

    Roques, Francoise

    2007-10-01

    The size distribution in the Kuiper Belt is unknown for faint objects. Current differential size distribution estimates give a slope of 4.5+- 0.2 for large end until mR=26 (Petit et al., 2007) but the population of fainter objects (small and far) is unknown. Observations with the HST (Bernstein et al., 2004) with a limiting magnitude de 28.5 could indicate a very shallow size distribution for small KBOs. The estimated slope would much smaller than expected from collisional equilibrium. It would also be smaller than the estimation of small KBOs numbers deduced from analyse of Triton cratering (Stern and McKinnon, 2000). It will be very difficult to improve these contradictory results from direct observations. The next advance could come from occultations of background targets. Three independant observations have announced occultations detections of KBOs. Observations of the bright X target Scorpius X1 by the satellite RXTE reveals 12 events compatible with KBOs occultations (Chang et al. 2007). Several occultations detections have been announced by Georgevits et al. (2006). The conditions of these two observations do not allow to measure the distance of the occulting objects. Three events were detected by Roques et al, 2006 but none is in the known Kuiper region. Occultation is a non reproductible phenomenon. Reliable results can only be obtained from simultaneous detection from two nearby telescope, or by signature of diffraction (expected with a very small target star and good temporal definition of the light curve) or by statistical signature of a large events data set (correlation with direction of observation or with the ecliptic latitude). Moreover, it is very difficult to compare results from different instruments in differents configurations. Results from three research campaigns with Ultracam are presented with an attempt of comparison with other results and some remarks about instruments best adapted for occultations works.

  6. A Different Angle on Perspective

    ERIC Educational Resources Information Center

    Frantz, Marc

    2012-01-01

    When a plane figure is photographed from different viewpoints, lengths and angles appear distorted. Hence it is often assumed that lengths, angles, protractors, and compasses have no place in projective geometry. Here we describe a sense in which certain angles are preserved by projective transformations. These angles can be constructed with…

  7. A Different Angle on Perspective

    ERIC Educational Resources Information Center

    Frantz, Marc

    2012-01-01

    When a plane figure is photographed from different viewpoints, lengths and angles appear distorted. Hence it is often assumed that lengths, angles, protractors, and compasses have no place in projective geometry. Here we describe a sense in which certain angles are preserved by projective transformations. These angles can be constructed with

  8. Angles in the Sky?

    NASA Astrophysics Data System (ADS)

    Behr, Bradford

    2005-09-01

    Tycho Brahe lived and worked in the late 1500s before the telescope was invented. He made highly accurate observations of the positions of planets, stars, and comets using large angle-measuring devices of his own design. You can use his techniques to observe the sky as well. For example, the degree, a common unit of measurement in astronomy, can be measured by holding your fist at arm's length up to the sky. Open your fist and observe the distance across the sky covered by the width of your pinky fingernail. That is, roughly, a degree! After some practice, and knowing that one degree equals four minutes, you can measure elapsed time by measuring the angle of the distance that the Moon appears to have moved and multiplying that number by four. You can also figure distances and sizes of things. These are not precise measurements, but rough estimates that can give you a "close-enough" answer.

  9. Laser angle sensor

    NASA Technical Reports Server (NTRS)

    Pond, C. R.; Texeira, P. D.

    1985-01-01

    A laser angle measurement system was designed and fabricated for NASA Langley Research Center. The instrument is a fringe counting interferometer that monitors the pitch attitude of a model in a wind tunnel. A laser source and detector are mounted above the model. Interference fringes are generated by a small passive element on the model. The fringe count is accumulated and displayed by a processor in the wind tunnel control room. This report includes optical and electrical schematics, system maintenance and operation procedures.

  10. Small Angle Neutron Scattering

    SciTech Connect

    Urban, Volker S

    2012-01-01

    Small Angle Neutron Scattering (SANS) probes structural details at the nanometer scale in a non-destructive way. This article gives an introduction to scientists who have no prior small-angle scattering knowledge, but who seek a technique that allows elucidating structural information in challenging situations that thwart approaches by other methods. SANS is applicable to a wide variety of materials including metals and alloys, ceramics, concrete, glasses, polymers, composites and biological materials. Isotope and magnetic interactions provide unique methods for labeling and contrast variation to highlight specific structural features of interest. In situ studies of a material s responses to temperature, pressure, shear, magnetic and electric fields, etc., are feasible as a result of the high penetrating power of neutrons. SANS provides statistical information on significant structural features averaged over the probed sample volume, and one can use SANS to quantify with high precision the structural details that are observed, for example, in electron microscopy. Neutron scattering is non-destructive; there is no need to cut specimens into thin sections, and neutrons penetrate deeply, providing information on the bulk material, free from surface effects. The basic principles of a SANS experiment are fairly simple, but the measurement, analysis and interpretation of small angle scattering data involves theoretical concepts that are unique to the technique and that are not widely known. This article includes a concise description of the basics, as well as practical know-how that is essential for a successful SANS experiment.

  11. Angle states in quantum mechanics

    NASA Astrophysics Data System (ADS)

    de la Torre, A. C.; Iguain, J. L.

    1998-12-01

    Angle states and angle operators are defined for a system with arbitrary angular momentum. They provide a reasonable formalization of the concept of angle provided that we accept that the angular orientation is quantized. The angle operator is the generator of boosts in angular momentum and is, almost everywhere, linearly related to the logarithm of the shift operator. Angle states for fermions and bosons behave differently under parity transformation.

  12. Computational prospecting the great viral unknown.

    PubMed

    Hurwitz, Bonnie L; U'Ren, Jana M; Youens-Clark, Ken

    2016-05-01

    Bacteriophages play an important role in host-driven biological processes by controlling bacterial population size, horizontally transferring genes between hosts and expressing host-derived genes to alter host metabolism. Metagenomics provides the genetic basis for understanding the interplay between uncultured bacteria, their phage and the environment. In particular, viral metagenomes (viromes) are providing new insight into phage-encoded host genes (i.e. auxiliary metabolic genes; AMGs) that reprogram host metabolism during infection. Yet, despite deep sequencing efforts of viral communities, the majority of sequences have no match to known proteins. Reference-independent computational techniques, such as protein clustering, contig spectra and ecological profiling are overcoming these barriers to examine both the known and unknown components of viromes. As the field of viral metagenomics progresses, a critical assessment of tools is required as the majority of algorithms have been developed for analyzing bacteria. The aim of this paper is to offer an overview of current computational methodologies for virome analysis and to provide an example of reference-independent approaches using human skin viromes. Additionally, we present methods to carefully validate AMGs from host contamination. Despite computational challenges, these new methods offer novel insights into the diversity and functional roles of phages in diverse environments. PMID:27030726

  13. Entanglement purification of unknown quantum states

    SciTech Connect

    Brun, Todd A.; Caves, Carlton M.; Schack, Ru''diger

    2001-04-01

    A concern has been expressed that ''the Jaynes principle can produce fake entanglement'' [R. Horodecki , Phys. Rev. A 59, 1799 (1999)]. In this paper we discuss the general problem of distilling maximally entangled states from N copies of a bipartite quantum system about which only partial information is known, for instance, in the form of a given expectation value. We point out that there is indeed a problem with applying the Jaynes principle of maximum entropy to more than one copy of a system, but the nature of this problem is classical and was discussed extensively by Jaynes. Under the additional assumption that the state {rho}{sup (N)} of the N copies of the quantum system is exchangeable, one can write down a simple general expression for {rho}{sup (N)}. By measuring one or more of the subsystems, one can gain information and update the state estimate for the remaining subsystems with the quantum version of the Bayes rule. Using this rule, we show how to modify two standard entanglement purification protocols, one-way hashing and recurrence, so that they can be applied to exchangeable states. We thus give an explicit algorithm for distilling entanglement from an unknown or partially known quantum state.

  14. A chronic granulomatous syndrome of unknown origin.

    PubMed

    Friedland, J S; Weatherall, D J; Ledingham, J G

    1990-11-01

    A small clinically distinct group of patients with widespread tissue granulomata are described. The principal presenting symptoms are malaise, fever, and weight loss, although a wide variety of complaints are documented. Pulmonary involvement is uncommon. The granulomata are noncaseating with a few multinucleate giant cells and some surrounding chronic inflammatory infiltrate. There is no evidence of an associated arteritis. The disease has a relapsing and remitting course and although it may require treatment with immunosuppressive drugs, particularly if the kidneys are involved, the prognosis is relatively good. We propose that this entity be called granulomatous syndrome of unknown origin. The characteristics that set this syndrome apart from the other granulomatous vasculitides are discussed. The current limited understanding of granuloma formation does not allow us to propose a definite etiology for this condition. It is emphasized that it is not helpful to encompass it within a label of sarcoidosis. First, it may only serve to confuse the doctor in assessing and treating this very particular group of patients. Secondly, it may hinder future attempts to understand the different pathogenetic mechanisms underlying the various conditions in which granulomata may arise. PMID:2233230

  15. Multigrain indexing of unknown multiphase materials

    PubMed Central

    Wejdemann, Christian; Poulsen, Henning Friis

    2016-01-01

    A multigrain indexing algorithm for use with samples comprising an arbitrary number of known or unknown phases is presented. No a priori crystallographic knowledge is required. The algorithm applies to data acquired with a monochromatic beam and a conventional two-dimensional detector for diffraction. Initially, candidate grains are found by searching for crystallographic planes, using a Dirac comb convoluted with a box function as a filter. Next, candidate grains are validated and the unit cell is optimized. The algorithm is validated by simulations. Simulations of 500 cementite grains and ∼100 reflections per grain resulted in 99.2% of all grains being indexed correctly and 99.5% of the reflections becoming associated with the right grain. Simulations with 200 grains associated with four mineral phases and 50–700 reflections per grain resulted in 99.9% of all grains being indexed correctly and 99.9% of the reflections becoming associated with the right grain. The main limitation is in terms of overlap of diffraction spots and computing time. Potential areas of use include three-dimensional grain mapping, structural solution and refinement studies of complex samples, and studies of dilute phases. PMID:27047308

  16. Fracture pain-Traveling unknown pathways.

    PubMed

    Alves, Cecília J; Neto, Estrela; Sousa, Daniela M; Leitão, Luís; Vasconcelos, Daniel M; Ribeiro-Silva, Manuel; Alencastre, Inês S; Lamghari, Meriem

    2016-04-01

    An increase of fracture incidence is expected for the next decades, mostly due to the undeniable increase of osteoporotic fractures, associated with the rapid population ageing. The rise in sports-related fractures affecting the young and active population also contributes to this increased fracture incidence, and further amplifies the economical burden of fractures. Fracture often results in severe pain, which is a primary symptom to be treated, not only to guarantee individual's wellbeing, but also because an efficient management of fracture pain is mandatory to ensure proper bone healing. Here, we review the available data on bone innervation and its response to fracture, and discuss putative mechanisms of fracture pain signaling. In addition, the common therapeutic approaches to treat fracture pain are discussed. Although there is still much to learn, research in fracture pain has allowed an initial insight into the mechanisms involved. During the inflammatory response to fracture, several mediators are released and will putatively activate and sensitize primary sensory neurons, in parallel, intense nerve sprouting that occurs in the fracture callus area is also suggested to be involved in pain signaling. The establishment of hyperalgesia and allodynia after fracture indicates the development of peripheral and central sensitization, still, the underlying mechanisms are largely unknown. A major concern during the treatment of fracture pain needs to be the preservation of proper bone healing. However, the most common therapeutic agents, NSAIDS and opiates, can cause significant side effects that include fracture repair impairment. The understanding of the mechanisms of fracture pain signaling will allow the development of mechanisms-based therapies to effectively and safely manage fracture pain. PMID:26851411

  17. Wide Angle Movie

    NASA Technical Reports Server (NTRS)

    1999-01-01

    This brief movie illustrates the passage of the Moon through the Saturn-bound Cassini spacecraft's wide-angle camera field of view as the spacecraft passed by the Moon on the way to its closest approach with Earth on August 17, 1999. From beginning to end of the sequence, 25 wide-angle images (with a spatial image scale of about 14 miles per pixel (about 23 kilometers)were taken over the course of 7 and 1/2 minutes through a series of narrow and broadband spectral filters and polarizers, ranging from the violet to the near-infrared regions of the spectrum, to calibrate the spectral response of the wide-angle camera. The exposure times range from 5 milliseconds to 1.5 seconds. Two of the exposures were smeared and have been discarded and replaced with nearby images to make a smooth movie sequence. All images were scaled so that the brightness of Crisium basin, the dark circular region in the upper right, is approximately the same in every image. The imaging data were processed and released by the Cassini Imaging Central Laboratory for Operations (CICLOPS)at the University of Arizona's Lunar and Planetary Laboratory, Tucson, AZ.

    Photo Credit: NASA/JPL/Cassini Imaging Team/University of Arizona

    Cassini, launched in 1997, is a joint mission of NASA, the European Space Agency and Italian Space Agency. The mission is managed by NASA's Jet Propulsion Laboratory, Pasadena, CA, for NASA's Office of Space Science, Washington DC. JPL is a division of the California Institute of Technology, Pasadena, CA.

  18. Laser angle measurement system

    NASA Technical Reports Server (NTRS)

    Pond, C. R.; Texeira, P. D.; Wilbert, R. E.

    1980-01-01

    The design and fabrication of a laser angle measurement system is described. The instrument is a fringe counting interferometer that monitors the pitch attitude of a model in a wind tunnel. A laser source and detector are mounted above the mode. Interference fringes are generated by a small passive element on the model. The fringe count is accumulated and displayed by a processor in the wind tunnel control room. Optical and electrical schematics, system maintenance and operation procedures are included, and the results of a demonstration test are given.

  19. Overfitting Bayesian Mixture Models with an Unknown Number of Components

    PubMed Central

    2015-01-01

    This paper proposes solutions to three issues pertaining to the estimation of finite mixture models with an unknown number of components: the non-identifiability induced by overfitting the number of components, the mixing limitations of standard Markov Chain Monte Carlo (MCMC) sampling techniques, and the related label switching problem. An overfitting approach is used to estimate the number of components in a finite mixture model via a Zmix algorithm. Zmix provides a bridge between multidimensional samplers and test based estimation methods, whereby priors are chosen to encourage extra groups to have weights approaching zero. MCMC sampling is made possible by the implementation of prior parallel tempering, an extension of parallel tempering. Zmix can accurately estimate the number of components, posterior parameter estimates and allocation probabilities given a sufficiently large sample size. The results will reflect uncertainty in the final model and will report the range of possible candidate models and their respective estimated probabilities from a single run. Label switching is resolved with a computationally light-weight method, Zswitch, developed for overfitted mixtures by exploiting the intuitiveness of allocation-based relabelling algorithms and the precision of label-invariant loss functions. Four simulation studies are included to illustrate Zmix and Zswitch, as well as three case studies from the literature. All methods are available as part of the R package Zmix, which can currently be applied to univariate Gaussian mixture models. PMID:26177375

  20. 53. Retail Pockets, Looking West, date unknown Historic Photograph, Photogapher ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    53. Retail Pockets, Looking West, date unknown Historic Photograph, Photogapher Unknown; Collection of William Everett, Jr. (Wilkes-Barre, PA), photocopy by Joseph E.B. Elliot - Huber Coal Breaker, 101 South Main Street, Ashley, Luzerne County, PA

  1. 45. Photocopy of drawing (Source unknown, 1928) Rapid Blue Print ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    45. Photocopy of drawing (Source unknown, 1928) Rapid Blue Print Co., Los Angeles, CA, Photographer, Date unknown SECOND FLOOR PLAN - Richfield Oil Building, 555 South Flower Street, Los Angeles, Los Angeles County, CA

  2. 46. Photocopy of drawing (Source unknown, 1928) Rapid Blue Print ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    46. Photocopy of drawing (Source unknown, 1928) Rapid Blue Print Co., Los Angeles, CA, Photographer, Date unknown NORTH ELEVATION - Richfield Oil Building, 555 South Flower Street, Los Angeles, Los Angeles County, CA

  3. 49. Photocopy of drawing (Source unknown, 1928) Rapid Blue Print ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    49. Photocopy of drawing (Source unknown, 1928) Rapid Blue Print Co., Los Angeles, CA, Photographer, Date unknown SECTION THROUGH BUILDING, LOOKING EAST - Richfield Oil Building, 555 South Flower Street, Los Angeles, Los Angeles County, CA

  4. 50. Photocopy of drawing (Source unknown, 1928) Rapid Blue Print ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    50. Photocopy of drawing (Source unknown, 1928) Rapid Blue Print Co., Los Angleles, CA, Photographer, Date unknown ENTRANCE AND TYPICAL BAY ON FLOWER STREET - Richfield Oil Building, 555 South Flower Street, Los Angeles, Los Angeles County, CA

  5. 53. Photocopy of drawing (Source unknown, 1928) Rapid Blue Print ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    53. Photocopy of drawing (Source unknown, 1928) Rapid Blue Print Co., Los Angeles, CA, Photographer, Date unknown DETAILS OF CORRIDORS ON SECOND - TWELFTH FLOORS - Richfield Oil Building, 555 South Flower Street, Los Angeles, Los Angeles County, CA

  6. 48. Photocopy of drawing (Source unknown, 1928) Rapid Blue Print ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    48. Photocopy of drawing (Source unknown, 1928) Rapid Blue Print Co., Los Angeles, CA., Photographer, Date unknown SECTION THROUGH BUILDING, LOOKING NORTH - Richfield Oil Building, 555 South Flower Street, Los Angeles, Los Angeles County, CA

  7. 44. Photocopy of drawing (Source unknown, 1928) Rapid Blue Print ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    44. Photocopy of drawing (Source unknown, 1928) Rapid Blue Print Co., Los Angeles, CA, Photographer, Date unknown FIRST FLOOR PLAN - Richfield Oil Building, 555 South Flower Street, Los Angeles, Los Angeles County, CA

  8. 52. Photocopy of drawing (Source unknown, 1928) Rapid Blue Print ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    52. Photocopy of drawing (Source unknown, 1928) Rapid Blue Print Co., Los Angeles, CA, Photographer, Date unknown DETAILS OF MAIN FLOOR ELEVATOR LOBBY - Richfield Oil Building, 555 South Flower Street, Los Angeles, Los Angeles County, CA

  9. 47. Photocopy of drawing (Source unknown, 1928) Rapid Blue Print ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    47. Photocopy of drawing (Source unknown, 1928) Rapid Blue Print Co., Los Angleles, CA, Photographer, Date unknown WEST ELEVATION - Richfield Oil Building, 555 South Flower Street, Los Angeles, Los Angeles County, CA

  10. 51. Photocopy of drawing (Source unknown, 1928) Rapid Blue Print ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    51. Photocopy of drawing (Source unknown, 1928) Rapid Blue Print Co., Los Angeles, CA, Photographer, Date unknown EXTERIOR, ELEVATION DETAILS - Richfield Oil Building, 555 South Flower Street, Los Angeles, Los Angeles County, CA

  11. 14. Photo copy of photograph (location of original print unknown) ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    14. Photo copy of photograph (location of original print unknown) c.1932, photographer unknown Historic view of bridge - Bridge at Mouth of Rogue River, Spanning Rogue River on Oregon Coast Highway, Gold Beach, Curry County, OR

  12. Variable angle correlation spectroscopy

    SciTech Connect

    Lee, Y K

    1994-05-01

    In this dissertation, a novel nuclear magnetic resonance (NMR) technique, variable angle correlation spectroscopy (VACSY) is described and demonstrated with {sup 13}C nuclei in rapidly rotating samples. These experiments focus on one of the basic problems in solid state NMR: how to extract the wealth of information contained in the anisotropic component of the NMR signal while still maintaining spectral resolution. Analysis of the anisotropic spectral patterns from poly-crystalline systems reveal information concerning molecular structure and dynamics, yet in all but the simplest of systems, the overlap of spectral patterns from chemically distinct sites renders the spectral analysis difficult if not impossible. One solution to this problem is to perform multi-dimensional experiments where the high-resolution, isotropic spectrum in one dimension is correlated with the anisotropic spectral patterns in the other dimensions. The VACSY technique incorporates the angle between the spinner axis and the static magnetic field as an experimental parameter that may be incremented during the course of the experiment to help correlate the isotropic and anisotropic components of the spectrum. The two-dimensional version of the VACSY experiments is used to extract the chemical shift anisotropy tensor values from multi-site organic molecules, study molecular dynamics in the intermediate time regime, and to examine the ordering properties of partially oriented samples. The VACSY technique is then extended to three-dimensional experiments to study slow molecular reorientations in a multi-site polymer system.

  13. Stochastic Inversion of Seismic Amplitude-Versus-Angle Data (Stinv-AVA)

    Energy Science and Technology Software Center (ESTSC)

    2008-04-03

    The software was developed to invert seismic amplitude-versus-angle (AVA) data using a Bayesian framework. The posterior probability distribution function is sampled by effective Markov chain Monte Carlo (MCMC) methods. The software could provide not only estimates of unknown variables but also varieties of information about uncertainty, such as the mean, mode, median, variance, and even probability density of each unknown.

  14. Angle performance on optima MDxt

    SciTech Connect

    David, Jonathan; Kamenitsa, Dennis

    2012-11-06

    Angle control on medium current implanters is important due to the high angle-sensitivity of typical medium current implants, such as halo implants. On the Optima MDxt, beam-to-wafer angles are controlled in both the horizontal and vertical directions. In the horizontal direction, the beam angle is measured through six narrow slits, and any angle adjustment is made by electrostatically steering the beam, while cross-wafer beam parallelism is adjusted by changing the focus of the electrostatic parallelizing lens (P-lens). In the vertical direction, the beam angle is measured through a high aspect ratio mask, and any angle adjustment is made by slightly tilting the wafer platen prior to implant. A variety of tests were run to measure the accuracy and repeatability of Optima MDxt's angle control. SIMS profiles of a high energy, channeling sensitive condition show both the cross-wafer angle uniformity, along with the small-angle resolution of the system. Angle repeatability was quantified by running a channeling sensitive implant as a regular monitor over a seven month period and measuring the sheet resistance-to-angle sensitivity. Even though crystal cut error was not controlled for in this case, when attributing all Rs variation to angle changes, the overall angle repeatability was measured as 0.16 Degree-Sign (1{sigma}). A separate angle repeatability test involved running a series of V-curves tests over a four month period using low crystal cut wafers selected from the same boule. The results of this test showed the angle repeatability to be <0.1 Degree-Sign (1{sigma}).

  15. Heterodyne Interferometer Angle Metrology

    NASA Technical Reports Server (NTRS)

    Hahn, Inseob; Weilert, Mark A.; Wang, Xu; Goullioud, Renaud

    2010-01-01

    A compact, high-resolution angle measurement instrument has been developed that is based on a heterodyne interferometer. The common-path heterodyne interferometer metrology is used to measure displacements of a reflective target surface. In the interferometer setup, an optical mask is used to sample the measurement laser beam reflecting back from a target surface. Angular rotations, around two orthogonal axes in a plane perpendicular to the measurement- beam propagation direction, are determined simultaneously from the relative displacement measurement of the target surface. The device is used in a tracking telescope system where pitch and yaw measurements of a flat mirror were simultaneously performed with a sensitivity of 0.1 nrad, per second, and a measuring range of 0.15 mrad at a working distance of an order of a meter. The nonlinearity of the device is also measured less than one percent over the measurement range.

  16. Sun angle calculator

    NASA Technical Reports Server (NTRS)

    Flippin, A.; Schmitt, A. L. (Inventor)

    1976-01-01

    A circular computer and system is disclosed for determining the sun angle relative to the horizon from any given place and at any time. The computer includes transparent, rotatably mounted discs on both sides of the circular disc member. Printed on one side of the circular disc member are outer and inner circular sets of indicia respectively representative of site longitude and Greenwich Mean Time. Printed on an associated one of the rotatable discs is a set of indicia representative of Solar Time. Printed on the other side of the circular disc member are parallel lines representative of latitude between diametral representations of North and South poles. Elliptical lines extending between the North and South poles are proportionally disposed on the surface to scale Solar Time in hours.

  17. Narrow Angle movie

    NASA Technical Reports Server (NTRS)

    1999-01-01

    This brief three-frame movie of the Moon was made from three Cassini narrow-angle images as the spacecraft passed by the Moon on the way to its closest approach with Earth on August 17, 1999. The purpose of this particular set of images was to calibrate the spectral response of the narrow-angle camera and to test its 'on-chip summing mode' data compression technique in flight. From left to right, they show the Moon in the green, blue and ultraviolet regions of the spectrum in 40, 60 and 80 millisecond exposures, respectively. All three images have been scaled so that the brightness of Crisium basin, the dark circular region in the upper right, is the same in each image. The spatial scale in the blue and ultraviolet images is 1.4 miles per pixel (2.3 kilometers). The original scale in the green image (which was captured in the usual manner and then reduced in size by 2x2 pixel summing within the camera system) was 2.8 miles per pixel (4.6 kilometers). It has been enlarged for display to the same scale as the other two. The imaging data were processed and released by the Cassini Imaging Central Laboratory for Operations (CICLOPS) at the University of Arizona's Lunar and Planetary Laboratory, Tucson, AZ.

    Photo Credit: NASA/JPL/Cassini Imaging Team/University of Arizona

    Cassini, launched in 1997, is a joint mission of NASA, the European Space Agency and Italian Space Agency. The mission is managed by NASA's Jet Propulsion Laboratory, Pasadena, CA, for NASA's Office of Space Science, Washington DC. JPL is a division of the California Institute of Technology, Pasadena, CA.

  18. State, Parameter, and Unknown Input Estimation Problems in Active Automotive Safety Applications

    NASA Astrophysics Data System (ADS)

    Phanomchoeng, Gridsada

    A variety of driver assistance systems such as traction control, electronic stability control (ESC), rollover prevention and lane departure avoidance systems are being developed by automotive manufacturers to reduce driver burden, partially automate normal driving operations, and reduce accidents. The effectiveness of these driver assistance systems can be significant enhanced if the real-time values of several vehicle parameters and state variables, namely tire-road friction coefficient, slip angle, roll angle, and rollover index, can be known. Since there are no inexpensive sensors available to measure these variables, it is necessary to estimate them. However, due to the significant nonlinear dynamics in a vehicle, due to unknown and changing plant parameters, and due to the presence of unknown input disturbances, the design of estimation algorithms for this application is challenging. This dissertation develops a new approach to observer design for nonlinear systems in which the nonlinearity has a globally (or locally) bounded Jacobian. The developed approach utilizes a modified version of the mean value theorem to express the nonlinearity in the estimation error dynamics as a convex combination of known matrices with time varying coefficients. The observer gains are then obtained by solving linear matrix inequalities (LMIs). A number of illustrative examples are presented to show that the developed approach is less conservative and more useful than the standard Lipschitz assumption based nonlinear observer. The developed nonlinear observer is utilized for estimation of slip angle, longitudinal vehicle velocity, and vehicle roll angle. In order to predict and prevent vehicle rollovers in tripped situations, it is necessary to estimate the vertical tire forces in the presence of unknown road disturbance inputs. An approach to estimate unknown disturbance inputs in nonlinear systems using dynamic model inversion and a modified version of the mean value theorem is presented. The developed theory is used to estimate vertical tire forces and predict tripped rollovers in situations involving road bumps, potholes, and lateral unknown force inputs. To estimate the tire-road friction coefficients at each individual tire of the vehicle, algorithms to estimate longitudinal forces and slip ratios at each tire are proposed. Subsequently, tire-road friction coefficients are obtained using recursive least squares parameter estimators that exploit the relationship between longitudinal force and slip ratio at each tire. The developed approaches are evaluated through simulations with industry standard software, CARSIM, with experimental tests on a Volvo XC90 sport utility vehicle and with experimental tests on a 1/8th scaled vehicle. The simulation and experimental results show that the developed approaches can reliably estimate the vehicle parameters and state variables needed for effective ESC and rollover prevention applications.

  19. Dual Wall Angles Would Enhance Performance Of A Solar Pond

    NASA Technical Reports Server (NTRS)

    Noever, David A.

    1995-01-01

    Proposed dual-angle design for Sun-facing wall of solar pond enhances solar-energy-storage performance of pond; increase in performance over that of similar pond with conventional (single-angle) wall estimated to be 25 percent. Design compromises between maximizing heating and minimizing convection. Top part of Sun-facing wall optimized for top colder layer of water, less tendency toward convective mixing. Bottom part of wall optimized for bottom, warmer layer of water, greater tendency towards convection. Optimization involves consideration of both anticipated temperature-vs.-depth profile (affects tendency toward convection) and latitude (affects angle of incidence of solar radiation and rate of heating).

  20. Equilibrium contact angle or the most-stable contact angle?

    PubMed

    Montes Ruiz-Cabello, F J; Rodríguez-Valverde, M A; Cabrerizo-Vílchez, M A

    2014-04-01

    It is well-established that the equilibrium contact angle in a thermodynamic framework is an "unattainable" contact angle. Instead, the most-stable contact angle obtained from mechanical stimuli of the system is indeed experimentally accessible. Monitoring the susceptibility of a sessile drop to a mechanical stimulus enables to identify the most stable drop configuration within the practical range of contact angle hysteresis. Two different stimuli may be used with sessile drops: mechanical vibration and tilting. The most stable drop against vibration should reveal the changeless contact angle but against the gravity force, it should reveal the highest resistance to slide down. After the corresponding mechanical stimulus, once the excited drop configuration is examined, the focus will be on the contact angle of the initial drop configuration. This methodology needs to map significantly the static drop configurations with different stable contact angles. The most-stable contact angle, together with the advancing and receding contact angles, completes the description of physically realizable configurations of a solid-liquid system. Since the most-stable contact angle is energetically significant, it may be used in the Wenzel, Cassie or Cassie-Baxter equations accordingly or for the surface energy evaluation. PMID:24140073

  1. Control design for the SISO system with the unknown order and the unknown relative degree.

    PubMed

    Zhao, Chunzhe; Li, Donghai

    2014-07-01

    For the uncertain system whose order, relative degree and parameters are unknown in the control design, new research is still in need on the parameter tuning and close-loop stability. During the last 10 years, much progress is made in the application and theory research of the active disturbance rejection control (ADRC) for the uncertain system. In this study, the necessary and sufficient conditions are established for building the ADRC for the minimum-phase system and the open-loop stable system when the plant parameters, orders and relative degrees are unknown, the corresponding ideal dynamics are analyzed, and the theoretical results are verified by the simulations. Considering the wide application and the long history of the PID/PI controller, a method is given to design ADRC quickly based on the existing (generalized or conventional) PID/PI controller. A plenty of simulations are made to illustrate this PID/PI-based design method and the corresponding close-loop performances. The simulation examples include the minimum/nonminimum-phase plants, the stable/integrating plants, the high/low-order plant, and the plants with time delays. Such plants are from a wider scope than the theoretical result, and representative of many kinds of the industrial processes. That leads to a new way to simplify the ADRC design via absorbing the engineering experience in designing the PID/PI controller. PMID:24238360

  2. Cerebellopontine Angle Epidermoids

    PubMed Central

    Doyle, Karen Jo; De la Cruz, Antonio

    1996-01-01

    Epidermoids, or congenital cholesteatomas, constitute about 0.2% to 1.5% of intracranial tumors, and 3% to 5% of tumors of the cerebellopontine angle (CPA). We review the surgical management of CPA epidermoids in 13 patients at the House Ear Clinic for the years 1978 to 1993. There were seven male and six female patients, ranging in age from 27 to 59 years (average, 40 years). Tumors ranged in size from 3.5 cm to 7.0 cm, and the surgical approach was tailored to the tumor extent and location. All patients complained at presentation of unilateral hearing loss, and nine had poor speech discrimination (less than 50%) preoperatively. Serviceable hearing was preserved in two patients. Two patients presented with facial nerve symptoms, and four cases had postoperative permanent facial nerve paralysis (House-Brackmann Grade V or VI). There were no surgical deaths. Four patients required second surgeries to remove residual cholesteatoma. Compared with prior series, we describe a higher rate of total tumor removed, as well as a higher rate of second operations, indicating a more aggressive approach to these lesions. ImagesFigure 1Figure 2Figure 3 PMID:17170950

  3. Measurement of the Effective Weak Mixing Angle inpp¯Z/γ*e+e-Events

    SciTech Connect

    Abazov, V.  M.; Abbott, B.; Acharya, B.  S.; Adams, M.; Adams, T.; Agnew, J.  P.; Alexeev, G.  D.; Alkhazov, G.; Alton, A.; Askew, A.; Atkins, S.; Augsten, K.; Avila, C.; Badaud, F.; Bagby, L.; Baldin, B.; Bandurin, D.  V.; Banerjee, S.; Barberis, E.; Baringer, P.; Bartlett, J.  F.; Bassler, U.; Bazterra, V.; Bean, A.; Begalli, M.; Bellantoni, L.; Beri, S.  B.; Bernardi, G.; Bernhard, R.; Bertram, I.; Besançon, M.; Beuselinck, R.; Bhat, P.  C.; Bhatia, S.; Bhatnagar, V.; Blazey, G.; Blessing, S.; Bloom, K.; Boehnlein, A.; Boline, D.; Boos, E.  E.; Borissov, G.; Borysova, M.; Brandt, A.; Brandt, O.; Brock, R.; Bross, A.; Brown, D.; Bu, X.  B.; Buehler, M.; Buescher, V.; Bunichev, V.; Burdin, S.; Buszello, C.  P.; Camacho-Pérez, E.; Casey, B.  C. K.; Castilla-Valdez, H.; Caughron, S.; Chakrabarti, S.; Chan, K.  M.; Chandra, A.; Chapon, E.; Chen, G.; Cho, S.  W.; Choi, S.; Choudhary, B.; Cihangir, S.; Claes, D.; Clutter, J.; Cooke, M.; Cooper, W.  E.; Corcoran, M.; Couderc, F.; Cousinou, M. -C.; Cutts, D.; Das, A.; Davies, G.; de Jong, S.  J.; De La Cruz-Burelo, E.; Déliot, F.; Demina, R.; Denisov, D.; Denisov, S.  P.; Desai, S.; Deterre, C.; DeVaughan, K.; Diehl, H.  T.; Diesburg, M.; Ding, P.  F.; Dominguez, A.; Dubey, A.; Dudko, L.  V.; Duperrin, A.; Dutt, S.; Eads, M.; Edmunds, D.; Ellison, J.; Elvira, V.  D.; Enari, Y.; Evans, H.; Evdokimov, V.  N.; Fauré, A.; Feng, L.; Ferbel, T.; Fiedler, F.; Filthaut, F.; Fisher, W.; Fisk, H.  E.; Fortner, M.; Fox, H.; Fuess, S.; Garbincius, P.  H.; Garcia-Bellido, A.; García-González, J.  A.; Gavrilov, V.; Geng, W.; Gerber, C.  E.; Gershtein, Y.; Ginther, G.; Gogota, O.; Golovanov, G.; Grannis, P.  D.; Greder, S.; Greenlee, H.; Grenier, G.; Gris, Ph.; Grivaz, J. -F.; Grohsjean, A.; Grünendahl, S.; Grünewald, M.  W.; Guillemin, T.; Gutierrez, G.; Gutierrez, P.; Haley, J.; Han, L.; Harder, K.; Harel, A.; Hauptman, J.  M.; Hays, J.; Head, T.; Hebbeker, T.; Hedin, D.; Hegab, H.; Heinson, A.  P.; Heintz, U.; Hensel, C.; Heredia-De La Cruz, I.; Herner, K.; Hesketh, G.; Hildreth, M.  D.; Hirosky, R.; Hoang, T.; Hobbs, J.  D.; Hoeneisen, B.; Hogan, J.; Hohlfeld, M.; Holzbauer, J.  L.; Howley, I.; Hubacek, Z.; Hynek, V.; Iashvili, I.; Ilchenko, Y.; Illingworth, R.; Ito, A.  S.; Jabeen, S.; Jaffré, M.; Jayasinghe, A.; Jeong, M.  S.; Jesik, R.; Jiang, P.; Johns, K.; Johnson, E.; Johnson, M.; Jonckheere, A.; Jonsson, P.; Joshi, J.; Jung, A.  W.; Juste, A.; Kajfasz, E.; Karmanov, D.; Katsanos, I.; Kaur, M.; Kehoe, R.; Kermiche, S.; Khalatyan, N.; Khanov, A.; Kharchilava, A.; Kharzheev, Y.  N.; Kiselevich, I.; Kohli, J.  M.; Kozelov, A.  V.; Kraus, J.; Kumar, A.; Kupco, A.; Kurča, T.; Kuzmin, V.  A.; Lammers, S.; Lebrun, P.; Lee, H.  S.; Lee, S.  W.; Lee, W.  M.; Lei, X.; Lellouch, J.; Li, D.; Li, H.; Li, L.; Li, Q.  Z.; Lim, J.  K.; Lincoln, D.; Linnemann, J.; Lipaev, V.  V.; Lipton, R.; Liu, H.; Liu, Y.; Lobodenko, A.; Lokajicek, M.; Lopes de Sa, R.; Luna-Garcia, R.; Lyon, A.  L.; Maciel, A.  K. A.; Madar, R.; Magaña-Villalba, R.; Malik, S.; Malyshev, V.  L.; Mansour, J.; Martínez-Ortega, J.; McCarthy, R.; McGivern, C.  L.; Meijer, M.  M.; Melnitchouk, A.; Menezes, D.; Mercadante, P.  G.; Merkin, M.; Meyer, A.; Meyer, J.; Miconi, F.; Mondal, N.  K.; Mulhearn, M.; Nagy, E.; Narain, M.; Nayyar, R.; Neal, H.  A.; Negret, J.  P.; Neustroev, P.; Nguyen, H.  T.; Nunnemann, T.; Orduna, J.; Osman, N.; Osta, J.; Pal, A.; Parashar, N.; Parihar, V.; Park, S.  K.; Partridge, R.; Parua, N.; Patwa, A.; Penning, B.; Perfilov, M.; Peters, Y.; Petridis, K.; Petrillo, G.; Pétroff, P.; Pleier, M. -A.; Podstavkov, V.  M.; Popov, A.  V.; Prewitt, M.; Price, D.; Prokopenko, N.; Qian, J.; Quadt, A.; Quinn, B.; Ratoff, P.  N.; Razumov, I.; Ripp-Baudot, I.; Rizatdinova, F.; Rominsky, M.; Ross, A.; Royon, C.; Rubinov, P.; Ruchti, R.; Sajot, G.; Sánchez-Hernández, A.; Sanders, M.  P.; Santos, A.  S.; Savage, G.; Savitskyi, M.; Sawyer, L.; Scanlon, T.; Schamberger, R.  D.; Scheglov, Y.; Schellman, H.; Schwanenberger, C.; Schwienhorst, R.; Sekaric, J.; Severini, H.; Shabalina, E.; Shary, V.; Shaw, S.; Shchukin, A.  A.; Simak, V.; Skubic, P.; Slattery, P.; Smirnov, D.; Snow, G.  R.; Snow, J.; Snyder, S.; Söldner-Rembold, S.; Sonnenschein, L.; Soustruznik, K.; Stark, J.; Stoyanova, D.  A.; Strauss, M.; Suter, L.; Svoisky, P.; Titov, M.; Tokmenin, V.  V.; Tsai, Y. -T.; Tsybychev, D.; Tuchming, B.; Tully, C.; Uvarov, L.; Uvarov, S.; Uzunyan, S.; Van Kooten, R.; van Leeuwen, W.  M.; Varelas, N.; Varnes, E.  W.; Vasilyev, I.  A.; Verkheev, A.  Y.; Vertogradov, L.  S.; Verzocchi, M.; Vesterinen, M.; Vilanova, D.; Vokac, P.; Wahl, H.  D.; Wang, M.  H. L. S.; Warchol, J.; Watts, G.; Wayne, M.; Weichert, J.; Welty-Rieger, L.; Williams, M.  R. J.; Wilson, G.  W.; Wobisch, M.; Wood, D.  R.; Wyatt, T.  R.; Xie, Y.; Yamada, R.; Yang, S.; Yasuda, T.; Yatsunenko, Y.  A.; Ye, W.; Ye, Z.; Yin, H.; Yip, K.; Youn, S.  W.; Yu, J.  M.; Zennamo, J.; Zhao, T.  G.; Zhou, B.; Zhu, J.; Zielinski, M.; Zieminska, D.; Zivkovic, L.

    2015-07-22

    We present a measurement of the fundamental parameter of the standard model, the weak mixing angle sin2θeff which determines the relative strength of weak and electromagnetic interactions, in pp¯→Z/γ*→e+e- events at a center of mass energy of 1.96 TeV, using data corresponding to 9.7 fb-1 of integrated luminosity collected by the D0 detector at the Fermilab Tevatron. The effective weak mixing angle is extracted from the forward-backward charge asymmetry as a function of the invariant mass around the Z boson pole. The measured value of sin2θeff=0.23147±0.00047 is the most precise measurement from light quark interactions to date, with a precision close to the best LEP and SLD results.

  4. Structural studies of mixed glass former 0.35Na2O + 0.65[xB2O3 + (1 - x)P2O5] glasses by Raman and 11B and 31P magic angle spinning nuclear magnetic resonance spectroscopies.

    PubMed

    Christensen, Randilynn; Olson, Garrett; Martin, Steve W

    2013-02-21

    The mixed glass former (MGF) effect (MGFE) is defined as a nonlinear and nonadditive change in the ionic conductivity with changing glass former composition at constant modifier composition. In this study, sodium borophosphate 0.35Na(2)O + 0.65[xB(2)O(3) + (1 - x)P(2)O(5)], 0 ≤ x ≤ 1, glasses which have been shown to exhibit a positive MGFE have been prepared and examined using Raman and (11)B and (31)P magic angle spinning nuclear magnetic resonance (MAS NMR) spectroscopies. Through examination of the short-range order (SRO) structures found in the ternary glasses, it was determined that the minority glass former, B for 0.1 ≤ x ≤ 0.7 and P for 0.7 ≤ x ≤ 0.9, is "overmodified" and contains more Na(+) ions than would be expected from simple linear mixing of the binary sodium borate, x = 1, and sodium phosphate, x = 0, glasses, respectively. Changes in the intermediate range order (IRO) structures were suggested by changes in the NMR spectral chemical shifts and Raman spectra wavenumber shifts over the full composition range x in the Raman and MAS NMR spectra. The changes observed in the chemical shifts of (31)P MAS NMR spectra with x are found to be too large to be caused solely by changing sodium modification of the phosphate SRO structural groups, and this indicates that internetwork bonding between phosphorus and boron through bridging oxygens (BOs), P-O-B, must be a major contributor to the IRO structure of these glasses. While not fully developed, a first-order thermodynamic analysis based upon the Gibbs free energies of formation of the various SRO structural units in this system has been developed and can be used to account for the preferential formation of tetrahedral boron groups, B(4), by the reaction of B(3) with P(2) groups to form B(4) and P(3) groups, respectively, where the superscript denotes the number of BOs on these units, in these glasses. This preference for B(4) units appears to be a predominate cause of the changing modifier to glass former ratio with composition x in these ternary MGF glasses and appears to be associated with the large negative value of the Gibbs free energy of formation of this group. PMID:23281937

  5. Biophysical optimality of the golden angle in phyllotaxis

    NASA Astrophysics Data System (ADS)

    Okabe, Takuya

    2015-10-01

    Plant leaves are arranged around a stem axis in a regular pattern characterized by common fractions, a phenomenon known as phyllotaxis or phyllotaxy. As plants grow, these fractions often transition according to simple rules related to Fibonacci sequences. This mathematical regularity originates from leaf primordia at the shoot tip (shoot apical meristem), which successively arise at fixed intervals of a divergence angle, typically the golden angle of 137.5°. Algebraic and numerical interpretations have been proposed to explain the golden angle observed in phyllotaxis. However, it remains unknown whether phyllotaxis has adaptive value, even though two centuries have passed since the phenomenon was discovered. Here, I propose a new adaptive mechanism explaining the presence of the golden angle. This angle is the optimal solution to minimize the energy cost of phyllotaxis transition. This model accounts for not only the high precision of the golden angle but also the occurrences of other angles observed in nature. The model also effectively explains the observed diversity of rational and irrational numbers in phyllotaxis.

  6. Biophysical optimality of the golden angle in phyllotaxis

    PubMed Central

    Okabe, Takuya

    2015-01-01

    Plant leaves are arranged around a stem axis in a regular pattern characterized by common fractions, a phenomenon known as phyllotaxis or phyllotaxy. As plants grow, these fractions often transition according to simple rules related to Fibonacci sequences. This mathematical regularity originates from leaf primordia at the shoot tip (shoot apical meristem), which successively arise at fixed intervals of a divergence angle, typically the golden angle of 137.5°. Algebraic and numerical interpretations have been proposed to explain the golden angle observed in phyllotaxis. However, it remains unknown whether phyllotaxis has adaptive value, even though two centuries have passed since the phenomenon was discovered. Here, I propose a new adaptive mechanism explaining the presence of the golden angle. This angle is the optimal solution to minimize the energy cost of phyllotaxis transition. This model accounts for not only the high precision of the golden angle but also the occurrences of other angles observed in nature. The model also effectively explains the observed diversity of rational and irrational numbers in phyllotaxis. PMID:26471765

  7. Small angle neutron scattering

    NASA Astrophysics Data System (ADS)

    Cousin, Fabrice

    2015-10-01

    Small Angle Neutron Scattering (SANS) is a technique that enables to probe the 3-D structure of materials on a typical size range lying from ˜ 1 nm up to ˜ a few 100 nm, the obtained information being statistically averaged on a sample whose volume is ˜ 1 cm3. This very rich technique enables to make a full structural characterization of a given object of nanometric dimensions (radius of gyration, shape, volume or mass, fractal dimension, specific area…) through the determination of the form factor as well as the determination of the way objects are organized within in a continuous media, and therefore to describe interactions between them, through the determination of the structure factor. The specific properties of neutrons (possibility of tuning the scattering intensity by using the isotopic substitution, sensitivity to magnetism, negligible absorption, low energy of the incident neutrons) make it particularly interesting in the fields of soft matter, biophysics, magnetic materials and metallurgy. In particular, the contrast variation methods allow to extract some informations that cannot be obtained by any other experimental techniques. This course is divided in two parts. The first one is devoted to the description of the principle of SANS: basics (formalism, coherent scattering/incoherent scattering, notion of elementary scatterer), form factor analysis (I(q→0), Guinier regime, intermediate regime, Porod regime, polydisperse system), structure factor analysis (2nd Virial coefficient, integral equations, characterization of aggregates), and contrast variation methods (how to create contrast in an homogeneous system, matching in ternary systems, extrapolation to zero concentration, Zero Averaged Contrast). It is illustrated by some representative examples. The second one describes the experimental aspects of SANS to guide user in its future experiments: description of SANS spectrometer, resolution of the spectrometer, optimization of spectrometer configurations, optimization of sample characteristics prior to measurements (thickness, volume, hydrogen content…), standards measurements to be made and principle of data reduction.

  8. Generalization of the Euler Angles

    NASA Technical Reports Server (NTRS)

    Bauer, Frank H. (Technical Monitor); Shuster, Malcolm D.; Markley, F. Landis

    2002-01-01

    It is shown that the Euler angles can be generalized to axes other than members of an orthonormal triad. As first shown by Davenport, the three generalized Euler axes, hereafter: Davenport axes, must still satisfy the constraint that the first two and the last two axes be mutually perpendicular if these axes are to define a universal set of attitude parameters. Expressions are given which relate the generalized Euler angles, hereafter: Davenport angles, to the 3-1-3 Euler angles of an associated direction-cosine matrix. The computation of the Davenport angles from the attitude matrix and their kinematic equation are presented. The present work offers a more direct development of the Davenport angles than Davenport's original publication and offers additional results.

  9. 2. Photocopy of photograph Photographer unknown, ca. 1893 Train shed ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    2. Photocopy of photograph Photographer unknown, ca. 1893 Train shed under construction - Pennsylvania Railroad Station, Broad Street Station, Broad & Market Streets, Philadelphia, Philadelphia County, PA

  10. 16. Historic photograph, photographer unknown, 1943. VIEW OF BRIDGE UNDER ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    16. Historic photograph, photographer unknown, 1943. VIEW OF BRIDGE UNDER CONSTRUCTION, LOOKING WEST. - Verde River Sheep Bridge, Spanning Verde River (Tonto National Forest), Cave Creek, Maricopa County, AZ

  11. The Critical Angle Can Override the Brewster Angle

    ERIC Educational Resources Information Center

    Froehle, Peter H.

    2009-01-01

    As a culminating activity in their study of optics, my students investigate polarized light and the Brewster angle. In this exercise they encounter a situation in which it is impossible to measure the Brewster angle for light reflecting from a particular surface. This paper describes the activity and explains the students' observations.

  12. η and η' mixing from lattice QCD.

    PubMed

    Michael, C; Ottnad, K; Urbach, C

    2013-11-01

    We present a lattice QCD computation of η and η' masses and mixing angles, for the first time controlling continuum and quark mass extrapolations. The results for M(η) = 551(8)(stat) (6)(yst) MeV and M(η') = 1006(54)(stat)(38)(syst)(+61)(ex) MeV are in excellent agreement with experiment. Our data show that the mixing in the quark flavor basis can be described by a single mixing angle of Ø = 46(1)(stat)(3)(syst)° indicating that the η' is mainly a flavor singlet state. PMID:24237506

  13. Tri-bimaximal Mixing from Cascades

    SciTech Connect

    Takahashi, Ryo

    2008-11-23

    We investigate fermion mass matrices of the cascade form which lead to the tri-bimaximal mixing in the lepton sector. The cascade neutrino matrix predicts a parameter-independent relation among the observables, which are the neutrino mixing angles and mass squared differences. The relation predicts that the atmospheric neutrino mixing angle is close to maximal. We also study phenomenological aspect of the cascade form in supersymmetric theory, which are lepton flavor violation and thermal leptogenesis. A dynamical realivation of the cascade mass matrix are also presented in U(1) flavor theory.

  14. Relating quark mixing neutrino mixing and δlep

    NASA Astrophysics Data System (ADS)

    Barr, S. M.; Chen, Heng-Yu

    2013-05-01

    It is proposed that all flavor mixing is caused by the mixing of the three quark and lepton families with vectorlike fermions in 5 + 5 multiplets of SU(5). The entire 3 × 3 complex mass matrix of the neutrinos Mν is then found to have a simple expression in terms of two complex parameters and an overall scale. Thus, all the presently unknown neutrino parameters are predicted. The best fits are for θatm <~ 40° The leptonic Dirac CP phase is found to be somewhat greater than π.

  15. Relating quark mixing neutrino mixing and {delta}{sub lep}

    SciTech Connect

    Barr, S. M.; Chen Hengyu

    2013-05-23

    It is proposed that all flavor mixing is caused by the mixing of the three quark and lepton families with vectorlike fermions in 5+5-bar multiplets of SU(5). The entire 3 Multiplication-Sign 3 complex mass matrix of the neutrinos M{sub {nu}} is then found to have a simple expression in terms of two complex parameters and an overall scale. Thus, all the presently unknown neutrino parameters are predicted. The best fits are for {theta}{sub atm} Less-Than-Or-Equivalent-To 40 Degree-Sign The leptonic Dirac CP phase is found to be somewhat greater than {pi}.

  16. 16 CFR 303.14 - Products containing unknown fibers.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... RULES AND REGULATIONS UNDER THE TEXTILE FIBER PRODUCTS IDENTIFICATION ACT § 303.14 Products containing unknown fibers. (a) Where a textile fiber product is made from miscellaneous scraps, rags, odd lots, secondhand materials, textile by-products, or waste materials of unknown, and for practical...

  17. 10 CFR 71.83 - Assumptions as to unknown properties.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 10 Energy 2 2010-01-01 2010-01-01 false Assumptions as to unknown properties. 71.83 Section 71.83 Energy NUCLEAR REGULATORY COMMISSION (CONTINUED) PACKAGING AND TRANSPORTATION OF RADIOACTIVE MATERIAL Operating Controls and Procedures § 71.83 Assumptions as to unknown properties. When the isotopic...

  18. 16 CFR 303.14 - Products containing unknown fibers.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 16 Commercial Practices 1 2012-01-01 2012-01-01 false Products containing unknown fibers. 303.14... RULES AND REGULATIONS UNDER THE TEXTILE FIBER PRODUCTS IDENTIFICATION ACT § 303.14 Products containing unknown fibers. (a) Where a textile fiber product is made from miscellaneous scraps, rags, odd...

  19. 16 CFR 303.14 - Products containing unknown fibers.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 16 Commercial Practices 1 2014-01-01 2014-01-01 false Products containing unknown fibers. 303.14... RULES AND REGULATIONS UNDER THE TEXTILE FIBER PRODUCTS IDENTIFICATION ACT § 303.14 Products containing unknown fibers. (a) Where a textile fiber product is made from miscellaneous scraps, rags, odd...

  20. 16 CFR 303.14 - Products containing unknown fibers.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 16 Commercial Practices 1 2013-01-01 2013-01-01 false Products containing unknown fibers. 303.14... RULES AND REGULATIONS UNDER THE TEXTILE FIBER PRODUCTS IDENTIFICATION ACT § 303.14 Products containing unknown fibers. (a) Where a textile fiber product is made from miscellaneous scraps, rags, odd...

  1. 16 CFR 303.14 - Products containing unknown fibers.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 16 Commercial Practices 1 2010-01-01 2010-01-01 false Products containing unknown fibers. 303.14... RULES AND REGULATIONS UNDER THE TEXTILE FIBER PRODUCTS IDENTIFICATION ACT § 303.14 Products containing unknown fibers. (a) Where a textile fiber product is made from miscellaneous scraps, rags, odd...

  2. 15. Photo copy of photograph (location of original print unknown) ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    15. Photo copy of photograph (location of original print unknown) c.1932, photographer unknown Historic view of cartouche detail at center of arch - Bridge at Mouth of Rogue River, Spanning Rogue River on Oregon Coast Highway, Gold Beach, Curry County, OR

  3. Poorly differentiated neoplasms and tumors of unknown origin

    SciTech Connect

    Fer, M.F.; Greco, F.A.; Oldham, R.K.

    1986-01-01

    This book contains 22 selections. Some of the titles are: Presentations and Clinical Syndromes of Tumors of Unknown Origin; Epidermoid and Undifferentiated Carcinoma of Unknown Origin; Gene Rearrangements as Specific Clonal Markers in Human Neoplasms; Small Cell Carcinomas of Extraplumonary Origin; and Chromosome Abnormalities in Solid Tumors: Potential Applications to Tumor Recognition.

  4. 37 CFR 253.9 - Unknown copyright owners.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 37 Patents, Trademarks, and Copyrights 1 2010-07-01 2010-07-01 false Unknown copyright owners. 253.9 Section 253.9 Patents, Trademarks, and Copyrights COPYRIGHT OFFICE, LIBRARY OF CONGRESS COPYRIGHT... NONCOMMERCIAL EDUCATIONAL BROADCASTING § 253.9 Unknown copyright owners. If PBS and its stations, NPR and...

  5. 37 CFR 381.9 - Unknown copyright owners.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 37 Patents, Trademarks, and Copyrights 1 2010-07-01 2010-07-01 false Unknown copyright owners. 381.9 Section 381.9 Patents, Trademarks, and Copyrights COPYRIGHT ROYALTY BOARD, LIBRARY OF CONGRESS... EDUCATIONAL BROADCASTING § 381.9 Unknown copyright owners. If PBS and its stations, NPR and its stations,...

  6. Students' Conscious Unknowns about Artefacts and Natural Objects

    ERIC Educational Resources Information Center

    Vaz-Rebelo, Piedade; Fernandes, Paula; Morgado, Julia; Monteiro, António; Otero, José

    2016-01-01

    This study attempts to characterise what 7th- and 12th-grade students believe they do not know about artefacts and natural objects, as well as the dependence of what is unknown on a knowledge of these objects. The students were asked to make explicit through questioning what they did not know about a sample of objects. The unknowns generated were…

  7. 48. Northwest Side of Breaker, from Culm Bank, date unknown ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    48. Northwest Side of Breaker, from Culm Bank, date unknown Historic Photograph, Photographer Unknown; Collection of William Everett, Jr. (Wilkes-Barre,PA), photocopy by Joseph E.B. Elliot - Huber Coal Breaker, 101 South Main Street, Ashley, Luzerne County, PA

  8. Considering Unknown Unknowns: Reconstruction of Nonconfoundable Causal Relations in Biological Networks

    PubMed Central

    Moffa, Giusi; Spang, Rainer

    2013-01-01

    Abstract Our current understanding of cellular networks is rather incomplete. We over look important but so far unknown genes and mechanisms in the pathways. Moreover, we often only have a partial account of the molecular interactions and modifications of the known players. When analyzing the cell, we look through narrow windows leaving potentially important events in blind spots. Network reconstruction is naturally confined to what we have observed. Little is known on how the incompleteness of our observations confounds our interpretation of the available data. Here we ask which features of a network can be confounded by incomplete observations and which cannot. In the context of nested effects models, we show that in the presence of missing observations or hidden factors a reliable reconstruction of the full network is not feasible. Nevertheless, we can show that certain characteristics of signaling networks like the existence of cross-talk between certain branches of the network can be inferred in a nonconfoundable way. We derive a test for inferring such nonconfoundable characteristics of signaling networks. Next, we introduce a new data structure to represent partially reconstructed signaling networks. Finally, we evaluate our method both on simulated data and in the context of a study on early stem cell differentiation in mice. PMID:24195708

  9. Considering unknown unknowns: reconstruction of nonconfoundable causal relations in biological networks.

    PubMed

    Sadeh, Mohammad J; Moffa, Giusi; Spang, Rainer

    2013-11-01

    Our current understanding of cellular networks is rather incomplete. We over look important but so far unknown genes and mechanisms in the pathways. Moreover, we often only have a partial account of the molecular interactions and modifications of the known players. When analyzing the cell, we look through narrow windows leaving potentially important events in blind spots. Network reconstruction is naturally confined to what we have observed. Little is known on how the incompleteness of our observations confounds our interpretation of the available data. Here we ask which features of a network can be confounded by incomplete observations and which cannot. In the context of nested effects models, we show that in the presence of missing observations or hidden factors a reliable reconstruction of the full network is not feasible. Nevertheless, we can show that certain characteristics of signaling networks like the existence of cross-talk between certain branches of the network can be inferred in a nonconfoundable way. We derive a test for inferring such nonconfoundable characteristics of signaling networks. Next, we introduce a new data structure to represent partially reconstructed signaling networks. Finally, we evaluate our method both on simulated data and in the context of a study on early stem cell differentiation in mice. PMID:24195708

  10. Bayesian methods for characterizing unknown parameters of material models

    DOE PAGESBeta

    Emery, J. M.; Grigoriu, M. D.; Field Jr., R. V.

    2016-02-04

    A Bayesian framework is developed for characterizing the unknown parameters of probabilistic models for material properties. In this framework, the unknown parameters are viewed as random and described by their posterior distributions obtained from prior information and measurements of quantities of interest that are observable and depend on the unknown parameters. The proposed Bayesian method is applied to characterize an unknown spatial correlation of the conductivity field in the definition of a stochastic transport equation and to solve this equation by Monte Carlo simulation and stochastic reduced order models (SROMs). As a result, the Bayesian method is also employed tomore » characterize unknown parameters of material properties for laser welds from measurements of peak forces sustained by these welds.« less

  11. Spinning angle optical calibration apparatus

    DOEpatents

    Beer, Stephen K.; Pratt, II, Harold R.

    1991-01-01

    An optical calibration apparatus is provided for calibrating and reproducing spinning angles in cross-polarization, nuclear magnetic resonance spectroscopy. An illuminated magnifying apparatus enables optical setting an accurate reproducing of spinning "magic angles" in cross-polarization, nuclear magnetic resonance spectroscopy experiments. A reference mark scribed on an edge of a spinning angle test sample holder is illuminated by a light source and viewed through a magnifying scope. When the "magic angle" of a sample material used as a standard is attained by varying the angular position of the sample holder, the coordinate position of the reference mark relative to a graduation or graduations on a reticle in the magnifying scope is noted. Thereafter, the spinning "magic angle" of a test material having similar nuclear properties to the standard is attained by returning the sample holder back to the originally noted coordinate position.

  12. Guidance law against maneuvering targets with intercept angle constraint.

    PubMed

    Xiong, Shaofeng; Wang, Weihong; Liu, Xiaodong; Wang, Sen; Chen, Zengqiang

    2014-07-01

    This study explores the guidance law against maneuvering targets with the intercept angle constraint. The limitation of the traditional guidance law, which simply treats the unknown target acceleration as zero, has been analyzed. To reduce this limitation, a linear extended state observer is constructed to estimate the acceleration of the maneuvering target to enhance the tracking performance of the desired intercept angle. Furthermore, a nonsingular terminal sliding mode control scheme is adopted to design the sliding surface, which is able to avoid the singularity in the terminal phase of guidance. Simulation results have demonstrated that the proposed guidance law outperforms the traditional guidance law in the sense that more accurate intercept angle can be achieved. PMID:24773919

  13. Hysteresis during contact angles measurement.

    PubMed

    Diaz, M Elena; Fuentes, Javier; Cerro, Ramon L; Savage, Michael D

    2010-03-15

    A theory, based on the presence of an adsorbed film in the vicinity of the triple contact line, provides a molecular interpretation of intrinsic hysteresis during the measurement of static contact angles. Static contact angles are measured by placing a sessile drop on top of a flat solid surface. If the solid surface has not been previously in contact with a vapor phase saturated with the molecules of the liquid phase, the solid surface is free of adsorbed liquid molecules. In the absence of an adsorbed film, molecular forces configure an advancing contact angle larger than the static contact angle. After some time, due to an evaporation/adsorption process, the interface of the drop coexists with an adsorbed film of liquid molecules as part of the equilibrium configuration, denoted as the static contact angle. This equilibrium configuration is metastable because the droplet has a larger vapor pressure than the surrounding flat film. As the drop evaporates, the vapor/liquid interface contracts and the apparent contact line moves towards the center of the drop. During this process, the film left behind is thicker than the adsorbed film and molecular attraction results in a receding contact angle, smaller than the equilibrium contact angle. PMID:20060981

  14. OPTOTRAK Measurement of the Quadriceps Angle Using Standardized Foot Positions

    PubMed Central

    Livingston, Lori A.; Spaulding, Sandi J.

    2002-01-01

    Objective: While there is evidence to suggest that the magnitude of the quadriceps (Q) angle changes with alterations in foot position, a detailed quantitative description of this relationship has not been reported. Our purpose was to determine the effect of varying foot placement on the magnitude of the Q angle. Design and Setting: A mixed between-within, repeated-measures design was used to compare Q angles derived under static weight-bearing conditions with the feet positioned in self-selected versus standardized stance positions. Subjects: Twenty healthy young-adult men and women with no history of acute injury to or chronic dysfunction of the lower limbs. Measurements: We placed light-emitting diodes bilaterally on the left and right anterior superior iliac spines, the tibial tuberosities, and the midpoints of the patellae to bilaterally define the Q angles. An OPTOTRAK motion-measurement system was used to capture x,y coordinate data at a sampling rate of 60 Hz. These data were subsequently filtered and used to calculate the magnitude of the left and right Q angles. Results: A repeated-measures analysis of variance revealed that when measured statically, Q angles differed significantly between stance positions (P < .001) and limbs (P < .05). Depending on the stance adopted, mean Q angles varied from 7.2° to 12.7° and 11.0° to 16.1° in the left and right lower limbs, respectively. Q-angle measurements taken in conjunction with the Romberg foot position most closely resembled those gathered with the feet in a self-selected stance (Pearson r = 0.86 to 0.92). Conclusions: Q-angle magnitude varies with changes in foot position, increasing or decreasing as the foot rotates internally or externally, respectively. These data demonstrate the need for a standardized foot position for Q-angle measurements. PMID:12937581

  15. A model of quark and lepton mixing

    NASA Astrophysics Data System (ADS)

    King, Stephen F.

    2014-01-01

    We propose a model of quark and lepton mixing based on the tetrahedral A 4 family symmetry with quark-lepton unification via the tetra-colour Pati-Salam gauge group SU(4) PS , together with SU(2) L × U(1) R . The "tetra-model" solves many of the flavour puzzles and remarkably gives ten predictions at leading order, including all six PMNS parameters. The Cabibbo angle is approximately given by θC ≈ 1 /4, due to the tetra-vacuum alignment (1 , 4 , 2), providing the Cabibbo connection between quark and lepton mixing. Higher order corrections are responsible for the smaller quark mixing angles and CP violation and provide corrections to the Cabibbo and lepton mixing angles and phases. The tetra-model involves an SO(10)-like pattern of Dirac and heavy right-handed neutrino masses, with the strong up-type quark mass hierarchy cancelling in the see-saw mechanism, leading to a normal hierarchy of neutrino masses with an atmospheric angle in the first octant, , a solar angle , a reactor angle , depending on the ratio of neutrino masses m 2 /m 3, and a Dirac CP violating oscillation phase δ l = 260° ± 5°.

  16. Ring magnet firing angle control

    DOEpatents

    Knott, M.J.; Lewis, L.G.; Rabe, H.H.

    1975-10-21

    A device is provided for controlling the firing angles of thyratrons (rectifiers) in a ring magnet power supply. A phase lock loop develops a smooth ac signal of frequency equal to and in phase with the frequency of the voltage wave developed by the main generator of the power supply. A counter that counts from zero to a particular number each cycle of the main generator voltage wave is synchronized with the smooth AC signal of the phase lock loop. Gates compare the number in the counter with predetermined desired firing angles for each thyratron and with coincidence the proper thyratron is fired at the predetermined firing angle.

  17. Relativistic Transformation of Solid Angle.

    ERIC Educational Resources Information Center

    McKinley, John M.

    1980-01-01

    Rederives the relativistic transformations of light intensity from compact sources (stars) to show where and how the transformation of a solid angle contributes. Discusses astrophysical and other applications of the transformations. (Author/CS)

  18. 15. Photocopy of photograph (original in WACC), photographer unknown, c. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    15. Photocopy of photograph (original in WACC), photographer unknown, c. 1917 BEN ERICKSON IN WWI UNIFORM STANDING IN FRONT OF SOUTH LIVING ROOM WINDOW (ADOBE WALLS) - Faraway Ranch, Willcox, Cochise County, AZ

  19. Genetics Experts Unite to I.D. Unknown Katrina Victims

    MedlinePlus

    ... Current Issue Past Issues Research News From NIH Genetics Experts Unite to I.D. Unknown Katrina Victims ... in the recent Advances in molecular biology and genetics," says team member Stephen Sherry, Ph.D., of ...

  20. A Method for Finding Unknown Signals Using Reinforcement FFT Differencing

    SciTech Connect

    Charles R. Tolle; John W. James

    2009-12-01

    This note addresses a simple yet powerful method of discovering the spectral character of an unknown but intermittent signal buried in a background made up of a distribution of other signals. Knowledge of when the unknown signal is present and when it is not, along with samples of the combined signal when the unknown signal is present and when it is not are all that is necessary for this method. The method is based on reinforcing Fast Fourier Transform (FFT) power spectra when the signal of interest occurs and subtracting spectra when it does not. Several examples are presented. This method could be used to discover spectral components of unknown chemical species within spectral analysis instruments such as Mass Spectroscopy, Fourier Transform Infrared Spectroscopy (FTIR) and Gas Chromatography. In addition, this method can be used to isolate device loading signatures on power transmission lines.

  1. 7. Historic American Buildings Survey unknown illustrator, 1898 DRAWING OF ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    7. Historic American Buildings Survey unknown illustrator, 1898 DRAWING OF PLYMOUTH PLACE, 1898 From the Collection of the Regional Transportation District - Plymouth Place, 1560-1572 Broadway, Denver, Denver County, CO

  2. 11. Photocopy of photograph (from St. Paul's Church) Photographer unknown ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    11. Photocopy of photograph (from St. Paul's Church) Photographer unknown 1886 'EPISCOPAL CHURCH, CORNER OF 1ST AND J ST. BENICIA' WEST AND SOUTH SIDES - St. Paul's Episcopal Church, 120 East J Street, Benicia, Solano County, CA

  3. 41. Upstream end of emergency spillway excavation. Photographer unknown, 1929. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    41. Upstream end of emergency spillway excavation. Photographer unknown, 1929. Source: Arizona Department of Water Resources (ADWR). - Waddell Dam, On Agua Fria River, 35 miles northwest of Phoenix, Phoenix, Maricopa County, AZ

  4. 44. Reinforcement construction to Pleasant Dam. Photographer unknown, 1935. Source: ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    44. Reinforcement construction to Pleasant Dam. Photographer unknown, 1935. Source: Huber Collection, University of California, Berkeley, Water Resources Library. - Waddell Dam, On Agua Fria River, 35 miles northwest of Phoenix, Phoenix, Maricopa County, AZ

  5. 30. Upstream face of construction effort. Photographer unknown, January 29, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    30. Upstream face of construction effort. Photographer unknown, January 29, 1927. Source: Fritz Seifritz. - Waddell Dam, On Agua Fria River, 35 miles northwest of Phoenix, Phoenix, Maricopa County, AZ

  6. 25. Photocopy of photograph (Source unknown, c. 19231925) EXTERIOR, CLOSEUP ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    25. Photocopy of photograph (Source unknown, c. 1923-1925) EXTERIOR, CLOSE-UP OF SOUTH FRONT OF MISSION AFTER RESTORATION, C. 1923-1925 - Mission San Francisco Solano de Sonoma, First & Spain Streets, Sonoma, Sonoma County, CA

  7. 22. Photographer unknown, 1956 AERIAL VIEW, LOOKING SOUTHSOUTHEAST, BUILDING 20 ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    22. Photographer unknown, 1956 AERIAL VIEW, LOOKING SOUTH-SOUTHEAST, BUILDING 20 AT LEFT. DARK AREAS ARE LANDSCAPED. - U. S. Veterans Administration Medical Center, 2100 Ridgecrest Southeast, Albuquerque, Bernalillo County, NM

  8. Managing Credit Lines Using Markov Decision Processes with Unknown Parameters

    NASA Astrophysics Data System (ADS)

    Maeda, Yasunari; Masui, Fumito; Suzuki, Masakiyo

    In this research we apply Markov decision processes with unknown parameters to managing credit lines. We propose a new managing credit lines method which maximizes total discounted reward with reference to a Bayes criterion.

  9. Using the Wheatstone Bridge to Compute Unknown Resistances.

    ERIC Educational Resources Information Center

    Schlenker, Richard M.

    This document presents a secondary level physics unit which introduces students to the Wheatstone Bridge, its use in determining the value of unknown resistors, and the effects of wiring resistors in series or in parallel. (SL)

  10. 35. Photocopy of drawing (from Library of Congress) Artist unknown ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    35. Photocopy of drawing (from Library of Congress) Artist unknown 1891 SOUTH FRONT FROM THE SOUTHWEST - Patent Office Building, Bounded by Seventh, Ninth, F & G Streets, Northwest, Washington, District of Columbia, DC

  11. 81. photographer unknown 11 June 1937 WORKMEN ON TURBINE BLADES ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    81. photographer unknown 11 June 1937 WORKMEN ON TURBINE BLADES BEFORE LOWERING INTO DRAFT TUBE LINER. - Bonneville Project, Powerhouse No.1, Spanning Bradford Slough, from Bradford Island, Bonneville, Multnomah County, OR

  12. 356. Delineator Unknown March 1946 STATE OF CALIFORNIA; DEPARTMENT OF ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    356. Delineator Unknown March 1946 STATE OF CALIFORNIA; DEPARTMENT OF PUBLIC WORKS; SAN FRANCISCO - OAKLAND BAY BRIDGE; GENERAL DATA; PLAT III - San Francisco Oakland Bay Bridge, Spanning San Francisco Bay, San Francisco, San Francisco County, CA

  13. 16. photographer unknown undated TYPICAL POWER SHOVEL, DUMP TRUCK, AND ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    16. photographer unknown undated TYPICAL POWER SHOVEL, DUMP TRUCK, AND BULLDOZER EXCAVATING AT LOCK SITE. - Bonneville Project, Navigation Lock No. 1, Oregon shore of Columbia River near first Powerhouse, Bonneville, Multnomah County, OR

  14. 55. Photocopy of plans. Draftsman unknown, 1914 SECOND ADDITION TO ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    55. Photocopy of plans. Draftsman unknown, 1914 SECOND ADDITION TO BUILDING. FRAME FOR 15-TON OVERHEAD TRAVELING CRANE. - Milwaukee Light, Heat & Traction Company, 8336 West Lapham Street, West Allis, Milwaukee County, WI

  15. 49. Photocopy of plans. Draftsman unknown, 1929 ROOF ALTERATION OVER ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    49. Photocopy of plans. Draftsman unknown, 1929 ROOF ALTERATION OVER OFFICE PORTION OF BUILDING. VIEWS TO WEST, EAST, AND NORTH. - Milwaukee Light, Heat & Traction Company, 8336 West Lapham Street, West Allis, Milwaukee County, WI

  16. 47. Photocopy of plans. Draftsman unknown, 1916 ADDITION TO CAR ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    47. Photocopy of plans. Draftsman unknown, 1916 ADDITION TO CAR BARN. LONGITUDINAL AND CROSS SECTIONS. VIEWS TO SOUTH AND WEST. - Milwaukee Light, Heat & Traction Company, 8336 West Lapham Street, West Allis, Milwaukee County, WI

  17. 42. Photocopy of plans. Draftsman unknown, 1909 FIRST ADDITION TO ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    42. Photocopy of plans. Draftsman unknown, 1909 FIRST ADDITION TO SUBSTATION. WEST SIDE WINDOW DETAILS. - Milwaukee Light, Heat & Traction Company, 8336 West Lapham Street, West Allis, Milwaukee County, WI

  18. 56. Photocopy of plans. Draftsman unknown, 1914 SECOND ADDITION TO ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    56. Photocopy of plans. Draftsman unknown, 1914 SECOND ADDITION TO BUILDING. BEARING FOR 15-TON OVERHEAD TRAVELING CRANE - Milwaukee Light, Heat & Traction Company, 8336 West Lapham Street, West Allis, Milwaukee County, WI

  19. 37. Photocopy of photograph. Photographer unknown, 1904 FRONT FACADE AND ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    37. Photocopy of photograph. Photographer unknown, 1904 FRONT FACADE AND EAST SIDE OF NEWLY COMPLETED BUILDING. VIEW TO WEST-NORTHWEST. - Milwaukee Light, Heat & Traction Company, 8336 West Lapham Street, West Allis, Milwaukee County, WI

  20. 36. Photocopy of photograph. Photographer unknown, 1904 FRONT FACADE AND ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    36. Photocopy of photograph. Photographer unknown, 1904 FRONT FACADE AND WEST SIDE OF NEWLY COMPLETED BUILDING. VIEW TO EAST-NORTHEAST. - Milwaukee Light, Heat & Traction Company, 8336 West Lapham Street, West Allis, Milwaukee County, WI

  1. 41. Photocopy of plans. Draftsman unknown, 1909 FIRST ADDITION TO ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    41. Photocopy of plans. Draftsman unknown, 1909 FIRST ADDITION TO SUBSTATION. LONGITUDINAL AND CROSS SECTIONS. VIEW TO NORTH. - Milwaukee Light, Heat & Traction Company, 8336 West Lapham Street, West Allis, Milwaukee County, WI

  2. 34. Photocopy of photograph. Photographer unknown, 1903. FRONT FACADE AND ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    34. Photocopy of photograph. Photographer unknown, 1903. FRONT FACADE AND WEST SIDE. UNDER CONSTRUCTION. VIEW TO NORTHEAST. - Milwaukee Light, Heat & Traction Company, 8336 West Lapham Street, West Allis, Milwaukee County, WI

  3. 33. Photocopy of photograph. Photographer unknown, 1903. EAST OF CAR ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    33. Photocopy of photograph. Photographer unknown, 1903. EAST OF CAR BARN. UNDER CONSTRUCTION. VIEW TO WEST-NORTHWEST. - Milwaukee Light, Heat & Traction Company, 8336 West Lapham Street, West Allis, Milwaukee County, WI

  4. 58. Photocopy of plans. Draftsman unknown, 1914 SECOND ADDITION TO ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    58. Photocopy of plans. Draftsman unknown, 1914 SECOND ADDITION TO BUILDING. CHAIN RECEPTACLES FOR 15-TON OVERHEAD TRAVELING CRANE. - Milwaukee Light, Heat & Traction Company, 8336 West Lapham Street, West Allis, Milwaukee County, WI

  5. 40. Photocopy of plans. Draftsman unknown, 1909 FIRST ADDITION TO ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    40. Photocopy of plans. Draftsman unknown, 1909 FIRST ADDITION TO SUBSTATION. VIEWS TO EAST, SOUTH, AND WEST. - Milwaukee Light, Heat & Traction Company, 8336 West Lapham Street, West Allis, Milwaukee County, WI

  6. 54. Photocopy of plans. Draftsman unknown, 1914 SECOND ADDITION TO ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    54. Photocopy of plans. Draftsman unknown, 1914 SECOND ADDITION TO SUBSTATION. CRANE BRIDGE FOR 15-TON OVERHEAD TRAVELING CRANE. - Milwaukee Light, Heat & Traction Company, 8336 West Lapham Street, West Allis, Milwaukee County, WI

  7. 59. Photocopy of plans. Draftsman unknown, 1914 ASSEMBLY DRAWING FOR ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    59. Photocopy of plans. Draftsman unknown, 1914 ASSEMBLY DRAWING FOR 15-TON OVERHEAD TRAVELING CRANE. - Milwaukee Light, Heat & Traction Company, 8336 West Lapham Street, West Allis, Milwaukee County, WI

  8. 57. Photocopy of plans. Draftsman unknown, 1914 SECOND ADDITION TO ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    57. Photocopy of plans. Draftsman unknown, 1914 SECOND ADDITION TO SUBSTATION. GEAR SHAFTING FOR 15-TON OVERHEAD TRAVELING CRANE. - Milwaukee Light, Heat & Traction Company, 8336 West Lapham Street, West Allis, Milwaukee County, WI

  9. 35. Photocopy of photograph. Photographer unknown, 1904 NEWLY COMPLETED OFFICE, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    35. Photocopy of photograph. Photographer unknown, 1904 NEWLY COMPLETED OFFICE, SUBSTATION, CAR BARN. VIEW TO NORTHEAST. - Milwaukee Light, Heat & Traction Company, 8336 West Lapham Street, West Allis, Milwaukee County, WI

  10. 47. Photocopy of postcard (Pentran file), photographer unknown. Hampton's Old ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    47. Photocopy of postcard (Pentran file), photographer unknown. Hampton's Old Point Comfort electric trolley in 1921. - Newport News & Old Point Railway & Electric Company, Trolley Barn & Administration Building, 3400 Victoria Boulevard, Hampton, Hampton, VA

  11. 22. Photographic copy of photograph, circa 1928, photographer unknown (original ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    22. Photographic copy of photograph, circa 1928, photographer unknown (original in Rundell Library, Rochester, New York) AUDITORIUM AND STAGE DECORATED FOR POLITICAL CONVENTION, VIEW FROM BALCONY LOOKING SOUTHWEST - New York State Arsenal, 75 Woodbury Boulevard, Rochester, Monroe County, NY

  12. 254. Photocopy of photograph from Parish's Artwork Photographer unknown, 1893 ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    254. Photocopy of photograph from Parish's Artwork Photographer unknown, 1893 803 WHITAKER STREET, 'RESIDENCE OF J.S. WOOD' - Savannah Victorian Historic District, Bounded by Gwinnett, East Broad, West Broad Street & Anderson Lane, Savannah, Chatham County, GA

  13. 61. Photographic copy of photograph (1898). Photographer unknown. West side ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    61. Photographic copy of photograph (1898). Photographer unknown. West side of bridge in 1893, looking southeast - Wabasha Street Bridge, Spanning Mississippi River at Wabasha Street, Saint Paul, Ramsey County, MN

  14. 78. photographer unknown March 1936 CRIB IN PLACE IN SECOND ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    78. photographer unknown March 1936 CRIB IN PLACE IN SECOND STEP COFFERDAM. BULKHEAD AND FIRST STEP COFFERDAM IN BACKGROUND. - Bonneville Project, Bonneville Dam, Columbia River, Bonneville, Multnomah County, OR

  15. 1. PHOTOCOPY OF HISTORIC DRAWING OF SHIP SECTION, UNKNOWN DELINEATOR ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. PHOTOCOPY OF HISTORIC DRAWING OF SHIP SECTION, UNKNOWN DELINEATOR AND DATE, SOURCE: BISHOP MUSEUM, HONOLULU, HI. - Ship "Falls of Clyde", Hawaii Maritime Center,Pier 7, Honolulu, Honolulu County, HI

  16. 37. photographer unknown undated VIEW OF SOUTH COFFERDAM LOOKING TOWARD ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    37. photographer unknown undated VIEW OF SOUTH COFFERDAM LOOKING TOWARD BRADFORD ISLAND. CRIB UNDER CONSTRUCTION ON WAYS IN RIVER AWAITING PLACEMENT. STEEL SHEET PILES DRIVEN ALONG RIGHT FACE OF COFFERDAM. - Bonneville Project, Bonneville Dam, Columbia River, Bonneville, Multnomah County, OR

  17. 38. photographer unknown undated VIEW OF SOUTH COFFERDAM LOOKING TOWARD ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    38. photographer unknown undated VIEW OF SOUTH COFFERDAM LOOKING TOWARD BRADFORD ISLAND. CRIB UNDER CONSTRUCTION ON WAYS IN RIVER AWAITING PLACEMENT. STEEL SHEET PILES DRIVEN ALONG RIGHT FACE OF COFFERDAM. - Bonneville Project, Bonneville Dam, Columbia River, Bonneville, Multnomah County, OR

  18. The Unknown Computer Viruses Detection Based on Similarity

    NASA Astrophysics Data System (ADS)

    Liu, Zhongda; Nakaya, Naoshi; Koui, Yuuji

    New computer viruses are continually being generated and they cause damage all over the world. In general, current anti-virus software detects viruses by matching a pattern based on the signature; thus, unknown viruses without any signature cannot be detected. Although there are some static analysis technologies that do not depend on signatures, virus writers often use code obfuscation techniques, which make it difficult to execute a code analysis. As is generally known, unknown viruses and known viruses share a common feature. In this paper we propose a new static analysis technology that can circumvent code obfuscation to extract the common feature and detect unknown viruses based on similarity. The results of evaluation experiments demonstrated that this technique is able to detect unknown viruses without false positives.

  19. 66. photographer unknown 26 December 1935 LAYING TIMBERS AFTER PART ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    66. photographer unknown 26 December 1935 LAYING TIMBERS AFTER PART OF CRIBFILL PLACED IN THE DOWNSTREAM TIMBER BULKHEAD FOR SECOND STEP COFFERDAM. - Bonneville Project, Bonneville Dam, Columbia River, Bonneville, Multnomah County, OR

  20. 2. Photocopy of photograph (from Reading Co. Archives) Photographer unknown ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    2. Photocopy of photograph (from Reading Co. Archives) Photographer unknown ca. 1937 NORTHEAST FRONT AND SOUTHEAST SIDE - Philadelphia & Reading Railroad, Terminal Station, 1115-1141 Market Street, Philadelphia, Philadelphia County, PA

  1. 43. Photographer unknown September 1967 VISITOR INFORMATION KIOSK, LOCATED NEAR ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    43. Photographer unknown September 1967 VISITOR INFORMATION KIOSK, LOCATED NEAR THE POWDER MILL ROAD INTERCHANGE. (NPS/NCR (cn) 9995-C) - Baltimore-Washington Parkway, Greenbelt, Prince George's County, MD

  2. 1. Historic American Buildings Survey, Copy, Photographer unknown 1900 (a) ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. Historic American Buildings Survey, Copy, Photographer unknown 1900 (a) Old Photo showing Kilns about 1900 (from original print found at site) - Charcoal Kilns, Valley Road, Pelham, Hampshire County, MA

  3. 14. Photocopy, photographer unknown, c. 194041 SOUTH ELEVATION DURING RECONSTRUCTION ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    14. Photocopy, photographer unknown, c. 1940-41 SOUTH ELEVATION DURING RECONSTRUCTION OF PORCH - White Deer Lake Camp, Chimney Cabin, Cyrus H. McCormick Experimental Forest, Champion, Marquette County, MI

  4. 16. Photocopy, photographer unknown, c. 194041 WEST END OF SOUTH ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    16. Photocopy, photographer unknown, c. 1940-41 WEST END OF SOUTH ELEVATION DURING RECONSTRUCTION - White Deer Lake Camp, Chimney Cabin, Cyrus H. McCormick Experimental Forest, Champion, Marquette County, MI

  5. 13. Photocopy, photographer unknown, c. 194041 SOUTH ELEVATION FROM LAKE ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    13. Photocopy, photographer unknown, c. 1940-41 SOUTH ELEVATION FROM LAKE DURING RECONSTRUCTION - White Deer Lake Camp, Chimney Cabin, Cyrus H. McCormick Experimental Forest, Champion, Marquette County, MI

  6. View of an unknown industrial building in the Dolphin Jute ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    View of an unknown industrial building in the Dolphin Jute Mill Complex, looking southwest. Note Garret Mountain at upper left and historic Dexter-Lambert smokestack. - Dolphin Manufacturing Company, Spruce & Barbour Streets, Paterson, Passaic County, NJ

  7. System for identifying known materials within a mixture of unknowns

    DOEpatents

    Wagner, John S.

    1999-01-01

    One or both of two methods and systems are used to determine concentration of a known material in an unknown mixture on the basis of the measured interaction of electromagnetic waves upon the mixture. One technique is to utilize a multivariate analysis patch technique to develop a library of optimized patches of spectral signatures of known materials containing only those pixels most descriptive of the known materials by an evolutionary algorithm. Identity and concentration of the known materials within the unknown mixture is then determined by minimizing the residuals between the measurements from the library of optimized patches and the measurements from the same pixels from the unknown mixture. Another technique is to train a neural network by the genetic algorithm to determine the identity and concentration of known materials in the unknown mixture. The two techniques may be combined into an expert system providing cross checks for accuracy.

  8. Method for identifying known materials within a mixture of unknowns

    DOEpatents

    Wagner, John S.

    2000-01-01

    One or both of two methods and systems are used to determine concentration of a known material in an unknown mixture on the basis of the measured interaction of electromagnetic waves upon the mixture. One technique is to utilize a multivariate analysis patch technique to develop a library of optimized patches of spectral signatures of known materials containing only those pixels most descriptive of the known materials by an evolutionary algorithm. Identity and concentration of the known materials within the unknown mixture is then determined by minimizing the residuals between the measurements from the library of optimized patches and the measurements from the same pixels from the unknown mixture. Another technique is to train a neural network by the genetic algorithm to determine the identity and concentration of known materials in the unknown mixture. The two techniques may be combined into an expert system providing cross checks for accuracy.

  9. System for identifying known materials within a mixture of unknowns

    DOEpatents

    Wagner, J.S.

    1999-07-20

    One or both of two methods and systems are used to determine concentration of a known material in an unknown mixture on the basis of the measured interaction of electromagnetic waves upon the mixture. One technique is to utilize a multivariate analysis patch technique to develop a library of optimized patches of spectral signatures of known materials containing only those pixels most descriptive of the known materials by an evolutionary algorithm. Identity and concentration of the known materials within the unknown mixture is then determined by minimizing the residuals between the measurements from the library of optimized patches and the measurements from the same pixels from the unknown mixture. Another technique is to train a neural network by the genetic algorithm to determine the identity and concentration of known materials in the unknown mixture. The two techniques may be combined into an expert system providing cross checks for accuracy. 37 figs.

  10. 54. Date unknown. "No. 38. View of stringers and middle ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    54. Date unknown. "No. 38. View of stringers and middle pier, Wheeler Creek Bridge, Pinnacles Road, mile two. Taken from under bridge, looking up." - Crater Lake National Park Roads, Klamath Falls, Klamath County, OR

  11. 52. photographer unknown 9 October 1935 CURING CONCRETE BLOCKS FOR ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    52. photographer unknown 9 October 1935 CURING CONCRETE BLOCKS FOR BASE OF SOUTH HALF OF SPILLWAY DAM. INSPECTION TUNNEL FORM IN BACKGROUND. - Bonneville Project, Bonneville Dam, Columbia River, Bonneville, Multnomah County, OR

  12. 25. photographer unknown 21 July 1936 THE DALLES WAS THE ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    25. photographer unknown 21 July 1936 THE DALLES WAS THE FIRST BOAT TO PASS THROUGH THE LOCK. - Bonneville Project, Navigation Lock No. 1, Oregon shore of Columbia River near first Powerhouse, Bonneville, Multnomah County, OR

  13. 12. photographer unknown undated BOAT ROCK, SITE ORIGINALLY PROPOSED FOR ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    12. photographer unknown undated BOAT ROCK, SITE ORIGINALLY PROPOSED FOR MAIN DAM SPILLWAY. - Bonneville Project, Columbia River, 1 mile Northeast of Exit 40, off Interstate 84, Bonneville, Multnomah County, OR

  14. 13. photographer unknown undated BOAT ROCK, SITE ORIGINALLY PROPOSED FOR ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    13. photographer unknown undated BOAT ROCK, SITE ORIGINALLY PROPOSED FOR MAIN DAM SPILLWAY. - Bonneville Project, Columbia River, 1 mile Northeast of Exit 40, off Interstate 84, Bonneville, Multnomah County, OR

  15. 14. photographer unknown undated BOAT ROCK, SITE ORIGINALLY PROPOSED FOR ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    14. photographer unknown undated BOAT ROCK, SITE ORIGINALLY PROPOSED FOR MAIN DAM SPILLWAY. - Bonneville Project, Columbia River, 1 mile Northeast of Exit 40, off Interstate 84, Bonneville, Multnomah County, OR

  16. 15. photographer unknown undated JACKHAMMERS DRILLING AT WEST END OF ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    15. photographer unknown undated JACKHAMMERS DRILLING AT WEST END OF BOAT ROCK, SITE LATER ABANDONED. - Bonneville Project, Columbia River, 1 mile Northeast of Exit 40, off Interstate 84, Bonneville, Multnomah County, OR

  17. 27. Photographic copy of undated photo; Photographer unknown; Original owned ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    27. Photographic copy of undated photo; Photographer unknown; Original owned by Waterloo Community Development Board, Waterloo, Iowa; SPLITTING CATTLE CARCASSES WITH RECIPROCATING SAW - Rath Packing Company, Beef Killing Building, Sycamore Street between Elm & Eighteenth Streets, Waterloo, Black Hawk County, IA

  18. 29. Historic photographer, photographer unknown, c. 1944. VIEW OF BRIDGE, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    29. Historic photographer, photographer unknown, c. 1944. VIEW OF BRIDGE, LOOKING EAST FROM TOP OF WEST TOWER. SHEEP CROSSING BRIDGE. NOTE SWAY CABLES. - Verde River Sheep Bridge, Spanning Verde River (Tonto National Forest), Cave Creek, Maricopa County, AZ

  19. 18. Historic photograph, photographer unknown, 1943. VIEW OF BRIDGE, LOOKING ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    18. Historic photograph, photographer unknown, 1943. VIEW OF BRIDGE, LOOKING EAST. EAST TOWER ON SKYLINE HAS NOT BEEN REINFORCED WITH CONCRETE. - Verde River Sheep Bridge, Spanning Verde River (Tonto National Forest), Cave Creek, Maricopa County, AZ

  20. 38. Historic photograph, photographer unknown, c. 1944. VIEW SHOWING BURROS ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    38. Historic photograph, photographer unknown, c. 1944. VIEW SHOWING BURROS (OR MULES) CROSSING BRIDGE, LOOKING NORTHEAST. - Verde River Sheep Bridge, Spanning Verde River (Tonto National Forest), Cave Creek, Maricopa County, AZ

  1. 35. Historic photograph, photographer unknown, c. 1941. VIEW OF HORSESHOE ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    35. Historic photograph, photographer unknown, c. 1941. VIEW OF HORSESHOE DAM SITE BRIDGE, SHOWING WALKWAY WITH CHARLES WILLIS (WITH HAT) AND FAMILY. - Verde River Sheep Bridge, Spanning Verde River (Tonto National Forest), Cave Creek, Maricopa County, AZ

  2. 39. Historic photograph, photographer unknown, c. 1944. VIEW SHOWING SHEEP ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    39. Historic photograph, photographer unknown, c. 1944. VIEW SHOWING SHEEP CROSSING BRIDGE, LOOKING WEST FROM CORRAL AT EAST APPROACH TO WALKWAY. - Verde River Sheep Bridge, Spanning Verde River (Tonto National Forest), Cave Creek, Maricopa County, AZ

  3. 40. Historic photograph, photographer unknown, c. 1954. VIEW OF SHEARING ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    40. Historic photograph, photographer unknown, c. 1954. VIEW OF SHEARING SHEEP IN SHED NEAR WEST END OF THE BRIDGE. - Verde River Sheep Bridge, Spanning Verde River (Tonto National Forest), Cave Creek, Maricopa County, AZ

  4. 41. Historic photograph, photographer unknown, c. 1954. VIEW OF LOADING ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    41. Historic photograph, photographer unknown, c. 1954. VIEW OF LOADING SACKS OF FLEECES ONTO TRUCK AT JUNCTION OF SEVEN SPRINGS ROAD AND TANGLE CREEK ROAD. - Verde River Sheep Bridge, Spanning Verde River (Tonto National Forest), Cave Creek, Maricopa County, AZ

  5. 34. Historic photograph, photographer unknown, October 10, 1944. VIEW SHOWING ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    34. Historic photograph, photographer unknown, October 10, 1944. VIEW SHOWING HORSESHOE DAM UNDER CONSTRUCTION, LOOKING WEST. ONLY THE BRIDGE TOWERS REMAIN. - Verde River Sheep Bridge, Spanning Verde River (Tonto National Forest), Cave Creek, Maricopa County, AZ

  6. 37. Historic photograph, photographer unknown, c. 1942. PHOTOGRAPH OF B. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    37. Historic photograph, photographer unknown, c. 1942. PHOTOGRAPH OF B. L. 'LES' SMITH, SON OF GEORGE W. SMITH, REPAIRING HORSESHOE DAM SITE BRIDGE - Verde River Sheep Bridge, Spanning Verde River (Tonto National Forest), Cave Creek, Maricopa County, AZ

  7. 32. Historic photograph, photographer unknown, c. 1943. VIEW OF HORSESHOE ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    32. Historic photograph, photographer unknown, c. 1943. VIEW OF HORSESHOE DAM SITE BRIDGE, LOOKING NORTH, SHOWING BRIDGE SPANNING THE VERDE RIVER BEFORE DAM WAS BUILT. - Verde River Sheep Bridge, Spanning Verde River (Tonto National Forest), Cave Creek, Maricopa County, AZ

  8. 10. Photocopy of map (from Benicia Historical Society) Delineator unknown ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    10. Photocopy of map (from Benicia Historical Society) Delineator unknown May 1, 1894, revised to Mar. 27, 1918 'MAP OF BENICIA ARSENAL RESERVATION' - Benicia Arsenal, Benicia Industrial Park, Benicia, Solano County, CA

  9. 19. Historic American Buildings Survey Unknown Draftsman 1931 BLUEPRINT OF ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    19. Historic American Buildings Survey Unknown Draftsman 1931 BLUEPRINT OF 1932 ADDITIONS, SOUTHWEST ELEVATION From the Collection of Walker and Walker, Architects-Engineers - U.S. Post Office & Courthouse, Marshall & Texas Streets, Shreveport, Caddo Parish, LA

  10. 23. Historic American Buildings Survey Unknown Draftsman 1931 BLUEPRINT OF ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    23. Historic American Buildings Survey Unknown Draftsman 1931 BLUEPRINT OF 1932 ADDITIONS, DETAIL OF PENTHOUSE CONSTRUCTION From the Collection of Walker and Walker, Architects-Engineers - U.S. Post Office & Courthouse, Marshall & Texas Streets, Shreveport, Caddo Parish, LA

  11. 21. Historic American Buildings Survey Unknown Draftsman 1931 BLUEPRINT OF ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    21. Historic American Buildings Survey Unknown Draftsman 1931 BLUEPRINT OF 1932 ADDITIONS, NORTHEAST ELEVATION From the Collection of Walker and Walker, Architects-Engineers - U.S. Post Office & Courthouse, Marshall & Texas Streets, Shreveport, Caddo Parish, LA

  12. 20. Historic American Buildings Survey Unknown Draftsman 1931 BLUEPRINT OF ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    20. Historic American Buildings Survey Unknown Draftsman 1931 BLUEPRINT OF 1932 ADDITIONS, NORTHWEST ELEVATION From the Collection of Walker and Walker, Architects-Engineers - U.S. Post Office & Courthouse, Marshall & Texas Streets, Shreveport, Caddo Parish, LA

  13. 18. Historic American Buildings Survey Unknown Draftsman 1931 BLUEPRINT OF ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    18. Historic American Buildings Survey Unknown Draftsman 1931 BLUEPRINT OF 1932 ADDITIONS, SOUTHEAST ELEVATION From the Collection of Walker and Walker, Architects-Engineers - U.S. Post Office & Courthouse, Marshall & Texas Streets, Shreveport, Caddo Parish, LA

  14. 43. Photocopy of photograph, photographer unknown, ca January 1929 (original ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    43. Photocopy of photograph, photographer unknown, ca January 1929 (original print located at Arizona Department of Transportation, Phoenix AZ). COMPLETED BRIDGE. - Navajo Bridge, Spanning Colorado River at U.S. Highway 89 Alternate, Page, Coconino County, AZ

  15. 51. BOILER ROOM. SMALL BOILER ON LEFT OF UNKNOWN MANUFACTURE, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    51. BOILER ROOM. SMALL BOILER ON LEFT OF UNKNOWN MANUFACTURE, WITH INDUCTION MOTORS. HARTLEY BOILER, MONTGOMERY, ALABAMA, ON RIGHT. - Prattville Manufacturing Company, Number One, 242 South Court Street, Prattville, Autauga County, AL

  16. 4. Photocopy of photograph, date unknown DETAIL, DECORATIVE SWAG OF ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    4. Photocopy of photograph, date unknown DETAIL, DECORATIVE SWAG OF EARS OF CORN - Thomas Asylum for Orphan & Destitute Indians, Dining Hall, Route 438, Cattaraugas Reservation, Irving, Chautauqua County, NY

  17. Angles of multivariable root loci

    NASA Technical Reports Server (NTRS)

    Thompson, P. M.; Stein, G.; Laub, A. J.

    1982-01-01

    A generalized eigenvalue problem is demonstrated to be useful for computing the multivariable root locus, particularly when obtaining the arrival angles to finite transmission zeros. The multivariable root loci are found for a linear, time-invariant output feedback problem. The problem is then employed to compute a closed-loop eigenstructure. The method of computing angles on the root locus is demonstrated, and the method is extended to a multivariable optimal root locus.

  18. Riser unit covers all angles

    SciTech Connect

    Dean, Q.W.

    1980-06-05

    A riser angle positioning system (RAPS), which measures the angle of selected joints in the riser system and, through the use of a mini-computer develops information on the vessel-wellhead position reference, is described. The system currently is employed on the drillship, Discoverer Seven Seas, which is currently drilling wells in approx. 4000 ft of water. The RAPS provides a backup system for more conventional acoustic systems. Sample calculations are included. (BLM)

  19. 8. VIEW SHOWING THE DEMOSSING OF GRAND CANAL LOCATION UNKNOWN. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    8. VIEW SHOWING THE DEMOSSING OF GRAND CANAL LOCATION UNKNOWN. AT TEAM OF HORSES ON OPPOSITE BANKS OF THE CANAL DRAG A CHAIN BETWEEN THEM ALONG THE BOTTOM OF THE CANAL, WHICH PULLS THE MOSS AND WEEDS LOOSE. THE PLANS THEN FLOAT DOWN THE CANAL AND ARE CAUGHT IN A SCREEN AND REMOVED. Photographer unknown, 1923 - Grand Canal, North side of Salt River, Tempe, Maricopa County, AZ

  20. Chinese unknown word recognition for PCFG-LA parsing.

    PubMed

    Huang, Qiuping; He, Liangye; Wong, Derek F; Chao, Lidia S

    2014-01-01

    This paper investigates the recognition of unknown words in Chinese parsing. Two methods are proposed to handle this problem. One is the modification of a character-based model. We model the emission probability of an unknown word using the first and last characters in the word. It aims to reduce the POS tag ambiguities of unknown words to improve the parsing performance. In addition, a novel method, using graph-based semisupervised learning (SSL), is proposed to improve the syntax parsing of unknown words. Its goal is to discover additional lexical knowledge from a large amount of unlabeled data to help the syntax parsing. The method is mainly to propagate lexical emission probabilities to unknown words by building the similarity graphs over the words of labeled and unlabeled data. The derived distributions are incorporated into the parsing process. The proposed methods are effective in dealing with the unknown words to improve the parsing. Empirical results for Penn Chinese Treebank and TCT Treebank revealed its effectiveness. PMID:24895681

  1. Moderate Positive Spin Hall Angle in Uranium

    NASA Astrophysics Data System (ADS)

    Anguera, Marta; Singh, Simran; Del Barco, Enrique; Springell, Ross; Miller, Casey W.

    We will present results on FMR and voltage measurements of magnetic damping and the inverse spin Hall effect, respectively, in Ni80Fe20/Uranium bilayers. A pure spin current is injected into an Uranium film from the ferromagnetic resonance dynamics of the magnetization of an adjacent Ni80Fe20 (permalloy) film. The spin current generated is then converted into an electric field by the inverse spin Hall effect. Our results suggest a spin mixing conductance of order 2x1019 m-2 and a positive spin Hall angle of 0.004, which are both unexpected based on trends in d-electron systems. These results support the idea that materials with unfilled f-electron orbitals may require additional exploration for spin physics. Work at UCF was supported by NSF-ECCS grant # 1402990. Work at RIT was supported by NSF-ECCS Grant 1515677.

  2. 26. Evening view of concrete mixing plant, concrete placement tower, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    26. Evening view of concrete mixing plant, concrete placement tower, cableway tower, power line and derrick. Photographer unknown, 1927. Source: MWD. - Waddell Dam, On Agua Fria River, 35 miles northwest of Phoenix, Phoenix, Maricopa County, AZ

  3. Helicity-dependent single-walled carbon nanotube alignment on graphite for helical angle and handedness recognition.

    PubMed

    Chen, Yabin; Shen, Ziyong; Xu, Ziwei; Hu, Yue; Xu, Haitao; Wang, Sheng; Guo, Xiaolei; Zhang, Yanfeng; Peng, Lianmao; Ding, Feng; Liu, Zhongfan; Zhang, Jin

    2013-01-01

    Aligned single-walled carbon nanotube arrays provide a great potential for the carbon-based nanodevices and circuit integration. Aligning single-walled carbon nanotubes with selected helicities and identifying their helical structures remain a daunting issue. The widely used gas-directed and surface-directed growth modes generally suffer the drawbacks of mixed and unknown helicities of the aligned single-walled carbon nanotubes. Here we develop a rational approach to anchor the single-walled carbon nanotubes on graphite surfaces, on which the orientation of each single-walled carbon nanotube sensitively depends on its helical angle and handedness. This approach can be exploited to conveniently measure both the helical angle and handedness of the single-walled carbon nanotube simultaneously at a low cost. In addition, by combining with the resonant Raman spectroscopy, the (n,m) index of anchored single-walled carbon nanotube can be further determined from the (d,θ) plot, and the assigned (n,m) values by this approach are validated by both the electronic transition energy Eii measurement and nanodevice application. PMID:23892334

  4. Helicity-dependent single-walled carbon nanotube alignment on graphite for helical angle and handedness recognition

    PubMed Central

    Chen, Yabin; Shen, Ziyong; Xu, Ziwei; Hu, Yue; Xu, Haitao; Wang, Sheng; Guo, Xiaolei; Zhang, Yanfeng; Peng, Lianmao; Ding, Feng; Liu, Zhongfan; Zhang, Jin

    2013-01-01

    Aligned single-walled carbon nanotube arrays provide a great potential for the carbon-based nanodevices and circuit integration. Aligning single-walled carbon nanotubes with selected helicities and identifying their helical structures remain a daunting issue. The widely used gas-directed and surface-directed growth modes generally suffer the drawbacks of mixed and unknown helicities of the aligned single-walled carbon nanotubes. Here we develop a rational approach to anchor the single-walled carbon nanotubes on graphite surfaces, on which the orientation of each single-walled carbon nanotube sensitively depends on its helical angle and handedness. This approach can be exploited to conveniently measure both the helical angle and handedness of the single-walled carbon nanotube simultaneously at a low cost. In addition, by combining with the resonant Raman spectroscopy, the (n,m) index of anchored single-walled carbon nanotube can be further determined from the (d,θ) plot, and the assigned (n,m) values by this approach are validated by both the electronic transition energy Eii measurement and nanodevice application. PMID:23892334

  5. The granular mixing in a slurry rotating drum

    NASA Astrophysics Data System (ADS)

    Liao, C. C.; Hsiau, S. S.

    2009-12-01

    The mixing dynamics of granular materials immersed in a liquid was experimentally studied in a quasi-2D rotating drum. A DV (SONY DCR-TRV900 NTSC) motion corder analyzer was used to record the motions of granular materials. The effects of interstitial fluid viscosity and filling degree on the mixing index, mixing rate constant, and dynamic repose angle in the rotating drum were investigated and discussed in this paper. The experimental results show that the interstitial fluid viscosity has almost not influence on the final stable mixing index but has significantly effects on the mixing rate constant and dynamic repose angle in slurry granular flows. The results show that the mixing rate and dynamic repose angle increase with increasing the interstitial fluid viscosity. The results also indicate that the filling degree plays an important role in mixing dynamics in slurry granular flows. The mixing rate constant is demonstrated to be decreased with increasing the filling degree. The dynamic repose angle is not altered by the filling degree. Finally, we find that the dynamic repose angle and the mixing rate constant increase slightly at high Stokes number and increase dramatically at low Stokes number with decreasing Stokes number.

  6. The granular mixing in a slurry rotating drum

    NASA Astrophysics Data System (ADS)

    Liao, C. C.; Hsiau, S. S.

    2010-03-01

    The mixing dynamics of granular materials immersed in a liquid was experimentally studied in a quasi-2D rotating drum. A DV (SONY DCR-TRV900 NTSC) motion corder analyzer was used to record the motions of granular materials. The effects of interstitial fluid viscosity and filling degree on the mixing index, mixing rate constant, and dynamic repose angle in the rotating drum were investigated and discussed in this paper. The experimental results show that the interstitial fluid viscosity has almost not influence on the final stable mixing index but has significantly effects on the mixing rate constant and dynamic repose angle in slurry granular flows. The results show that the mixing rate and dynamic repose angle increase with increasing the interstitial fluid viscosity. The results also indicate that the filling degree plays an important role in mixing dynamics in slurry granular flows. The mixing rate constant is demonstrated to be decreased with increasing the filling degree. The dynamic repose angle is not altered by the filling degree. Finally, we find that the dynamic repose angle and the mixing rate constant increase slightly at high Stokes number and increase dramatically at low Stokes number with decreasing Stokes number.

  7. Wide-Angle Quasar Feedback

    NASA Astrophysics Data System (ADS)

    Chartas, George

    2015-08-01

    I will present results from the detection of near-relativistic winds launched near the innermost stable circular orbits of SMBHs. A recent detection of a powerful wind in the X-ray bright narrow absorption line (NAL) quasar HS 0810 strengthens the case that quasars play a significant role in feedback. In both deep Chandra and XMM-Newton observations of HS 0810 we detected blueshifted absorption lines implying outflowing velocities ranging between 0.1c and 0.5c. The presence of both an emission line at 6.8 keV and an absorption line at 7.8 keV in the spectral line profile of HS 0810 is a characteristic feature of a P-Cygni profile supporting the presence of an expanding outflowing highly ionized Fe absorber in this object. A hard excess component is detected in the XMM-Newton observation of HS 0810 possibly originating from reflection off the disk. Modeling of the XMM-Newton spectrum constrains the inclination angle to be about 30 degrees. The presence of relativistic winds in both low inclination angle NAL quasars and well as in high inclination angle BAL quasars implies that the solid angle of quasar winds may be quite large. The larger solid angle of quasar winds would also indicate that their contribution to the regulation of the host galaxy may be even more important than previously thought.

  8. MoCha: Molecular Characterization of Unknown Pathways.

    PubMed

    Lobo, Daniel; Hammelman, Jennifer; Levin, Michael

    2016-04-01

    Automated methods for the reverse-engineering of complex regulatory networks are paving the way for the inference of mechanistic comprehensive models directly from experimental data. These novel methods can infer not only the relations and parameters of the known molecules defined in their input datasets, but also unknown components and pathways identified as necessary by the automated algorithms. Identifying the molecular nature of these unknown components is a crucial step for making testable predictions and experimentally validating the models, yet no specific and efficient tools exist to aid in this process. To this end, we present here MoCha (Molecular Characterization), a tool optimized for the search of unknown proteins and their pathways from a given set of known interacting proteins. MoCha uses the comprehensive dataset of protein-protein interactions provided by the STRING database, which currently includes more than a billion interactions from over 2,000 organisms. MoCha is highly optimized, performing typical searches within seconds. We demonstrate the use of MoCha with the characterization of unknown components from reverse-engineered models from the literature. MoCha is useful for working on network models by hand or as a downstream step of a model inference engine workflow and represents a valuable and efficient tool for the characterization of unknown pathways using known data from thousands of organisms. MoCha and its source code are freely available online under the GPLv3 license. PMID:26950055

  9. Critical rolling angle of microparticles

    NASA Astrophysics Data System (ADS)

    Farzi, Bahman; Vallabh, Chaitanya K. P.; Stephens, James D.; Cetinkaya, Cetin

    2016-03-01

    At the micrometer-scale and below, particle adhesion becomes particularly relevant as van der Waals force often dominates volume and surface proportional forces. The rolling resistance of microparticles and their critical rolling angles prior to the initiation of free-rolling and/or complete detachment are critical in numerous industrial processes and natural phenomenon involving particle adhesion and granular dynamics. The current work describes a non-contact measurement approach for determining the critical rolling angle of a single microparticle under the influence of a contact-point base-excitation generated by a transient displacement field of a prescribed surface acoustic wave pulse and reports the critical rolling angle data for a set of polystyrene latex microparticles.

  10. Burner tilting angle effect on velocity profile in 700 MW Utility Boiler

    NASA Astrophysics Data System (ADS)

    Munisamy, K. M.; Yusoff, M. Z.; Thangaraju, S. K.; Hassan, H.; Ahmad, A.

    2015-09-01

    700 MW of utility boiler is investigated with manipulation of inlet burner angle. Manipulation of burner titling angle is an operational methodology in controlling rear pass temperature in utility boilers. The rear pass temperature unbalance between right and left side is a problem caused by fouling and slagging of the ash from the coal fired boilers. This paper presents the CFD investigation on the 0° and -30° of the burner angle of the utility boiler. The results focusing on the velocity profile. The design condition of 0° burner firing angle is compared with the off-design burner angle -30° which would be the burner angle to reduce the rear pass temperature un-balance by boiler operators. It can be concluded that the -30° burner angle reduce the turbulence is fire ball mixing inside the furnace. It also shift the fire ball position in the furnace to reduce the rear pass temperature.

  11. Mixed results with mixed disulfides.

    PubMed

    Brigelius-Flohé, Regina

    2016-04-01

    A period of research with Helmut Sies in the 1980s is recalled. Our experiments aimed at an in-depth understanding of metabolic changes due to oxidative challenges under near-physiological conditions, i.e. perfused organs. A major focus were alterations of the glutathione and the NADPH/NADP(+) system by different kinds of oxidants, in particular formation of glutathione mixed disulfides with proteins. To analyze mixed disulfides, a test was adapted which is widely used until today. The observations in perfused rat livers let us believe that glutathione-6-phosphate dehydrogenase (G6PDH), i.a. might be activated by glutathionylation. Although we did not succeed to verify this hypothesis for the special case of G6PDH, the regulation of enzyme/protein activities by glutathionylation today is an accepted posttranslational mechanism in redox biology in general. Our early experimental approaches are discussed in the context of present knowledge. PMID:27095221

  12. Quantum key distribution with an unknown and untrusted source

    NASA Astrophysics Data System (ADS)

    Zhao, Yi; Qi, Bing; Lo, Hoi-Kwong

    2008-05-01

    The security of a standard bidirectional plug-and-play quantum key distribution (QKD) system has been an open question for a long time. This is mainly because its source is equivalently controlled by an eavesdropper, which means the source is unknown and untrusted. Qualitative discussion on this subject has been made previously. In this paper, we solve this question directly by presenting the quantitative security analysis on a general class of QKD protocols whose sources are unknown and untrusted. The securities of standard Bennett-Brassard 1984 protocol, weak+vacuum decoy state protocol, and one-decoy state protocol, with unknown and untrusted sources are rigorously proved. We derive rigorous lower bounds to the secure key generation rates of the above three protocols. Our numerical simulation results show that QKD with an untrusted source gives a key generation rate that is close to that with a trusted source.

  13. Quantifying mixing using equilibrium reactions

    SciTech Connect

    Wheat, Philip M.; Posner, Jonathan D.

    2009-03-15

    A method of quantifying equilibrium reactions in a microchannel using a fluorometric reaction of Fluo-4 and Ca{sup 2+} ions is presented. Under the proper conditions, equilibrium reactions can be used to quantify fluid mixing without the challenges associated with constituent mixing measures such as limited imaging spatial resolution and viewing angle coupled with three-dimensional structure. Quantitative measurements of CaCl and calcium-indicating fluorescent dye Fluo-4 mixing are measured in Y-shaped microchannels. Reactant and product concentration distributions are modeled using Green's function solutions and a numerical solution to the advection-diffusion equation. Equilibrium reactions provide for an unambiguous, quantitative measure of mixing when the reactant concentrations are greater than 100 times their dissociation constant and the diffusivities are equal. At lower concentrations and for dissimilar diffusivities, the area averaged fluorescence signal reaches a maximum before the species have interdiffused, suggesting that reactant concentrations and diffusivities must be carefully selected to provide unambiguous, quantitative mixing measures. Fluorometric equilibrium reactions work over a wide range of pH and background concentrations such that they can be used for a wide variety of fluid mixing measures including industrial or microscale flows.

  14. Scheme for cloning an unknown single qutrit state with assistance

    NASA Astrophysics Data System (ADS)

    Wang, Zhang-yin; Yuan, Hao; Shi, Shou-hua

    2007-01-01

    We propose a scheme for cloning an unknown single qutrit state with assistance. The scheme includes a qutrit-state teleportation at the cloner's site. During this process different states (i.e., the maximally entangled or non-maximally entangled two-qutrit states) as quantum channel are taken into account. After the teleportation, to help the cloner Alice to reestablish the unknown state, the state preparer Victor should perform a single-qutrit measurement and tell her the outcome. In this scheme, the success probability of cloning the original state is determined by the used quantum channel.

  15. Scheme for teleportation of unknown states of trapped ion

    NASA Astrophysics Data System (ADS)

    Chen, Mei-Feng; Ma, Song-She

    2008-02-01

    A scheme is presented for teleporting an unknown state in a trapped ion system. The scheme only requires a single laser beam. It allows the trap to be in any state with a few phonons, e.g. a thermal motion. Furthermore, it works in the regime, where the Rabi frequency of the laser is on the order of the trap frequency. Thus, the teleportation speed is greatly increased, which is important for decreasing the decoherence effect. This idea can also be used to teleport an unknown ionic entangled state.

  16. 17. Photographic copy of photograph. Location unknown but assumed to ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    17. Photographic copy of photograph. Location unknown but assumed to be uper end of canal. Features no longer extant. (Source: U.S. Department of Interior. Office of Indian Affairs. Indian Irrigation service. Annual Report, Fiscal Year 1925. Vol. I, Narrative and Photographs, Irrigation District #4, California and Southern Arizona, RG 75, Entry 655, Box 28, National Archives, Washington, DC.) Photographer unknown. MAIN (TITLED FLORENCE) CANAL, WASTEWAY, SLUICEWAY, & BRIDGE, 1/26/25. - San Carlos Irrigation Project, Marin Canal, Amhurst-Hayden Dam to Picacho Reservoir, Coolidge, Pinal County, AZ

  17. Adaptive mobile tracking in unknown non-line-of-sight conditions with application to digital TV networks

    NASA Astrophysics Data System (ADS)

    Chen, Liang; Pich, Robert; Kuusniemi, Heidi; Chen, Ruizhi

    2014-12-01

    This paper studies the problem of tracking a mobile device in mixed line-of-sight (LOS) and non-line-of-sight (NLOS) conditions. NLOS error is assumed to be Gaussian with unknown mean and variance. An adaptive Rao-Blackwellized particle filter (RBPF) is proposed for mobile tracking in such scenarios. An extended Kalman filter is used to approximately estimate the mobile state, and the particle filter is applied to estimate the posterior distribution of sight conditions and the unknown static parameters, the distribution of which is updated by sufficient statistics. To improve the efficiency of the particle filtering, we use the approximate optimal proposal distribution for particle inference. Algorithm performance is investigated in the scenario of mobile tracking using signals of opportunity from digital TV (DTV) network. Simulation results show that the adaptive RBPF method is effective to infer the unknown NLOS parameter and can achieve good tracking accuracy using a small number of particles.

  18. Logo and Angle Estimation Skills.

    ERIC Educational Resources Information Center

    Frazier, Max K.

    1989-01-01

    Described is a study in which seventh graders used LOGO in place of receiving geometry instruction. It was hypothesized that angle recognition estimation and construction would be higher for the LOGO group. Reports that a difference was found favoring the LOGO group. Provides a short history of the LOGO language. (MVL)

  19. Discovering the Inscribed Angle Theorem

    ERIC Educational Resources Information Center

    Roscoe, Matt B.

    2012-01-01

    Learning to play tennis is difficult. It takes practice, but it also helps to have a coach--someone who gives tips and pointers but allows the freedom to play the game on one's own. Learning to act like a mathematician is a similar process. Students report that the process of proving the inscribed angle theorem is challenging and, at times,…

  20. The EUVE Right Angle Program (RAP)

    NASA Astrophysics Data System (ADS)

    Sommers, J.; Christian, D.; Craig, N.; Jessop, H.; Stroozas, B.

    1996-05-01

    The Extreme Ultraviolet Explorer (EUVE ) has three scanning telescopes that observe in a direction perpendicular to that of the primary guest observer (GO) telescope---the Deep Survey/Spectrometer (DS/S). During the first 6 months of the EUVE mission, the scanning telescopes were used to conduct an all-sky survey consisting of short exposures ( ~ 500 s) of the entire sky between 58--740 Angstroms . These telescopes are now being used during GO observations to conduct simultaneous long exposure (typically 40+ ks) observations as part of the very successful---and publicly accessible---EUVE Right Angle Program (RAP). To date, the EUVE RAP has provided photometric and timing data on late-type stars and CVs and has been responsible for detecting dozens of previously unknown extreme ultraviolet sources, including many stars without optical counterparts. This poster presents some of the exciting results found with EUVE RAP data, along with general information about the program and instructions for submitting RAP proposals. This work is supported by NASA contract NAS5-29298.

  1. Unknown Gases: Student-Designed Experiments in the Introductory Laboratory.

    ERIC Educational Resources Information Center

    Hanson, John; Hoyt, Tim

    2002-01-01

    Introductory students design and carry-out experimental procedures to determine the identity of three unknown gases from a list of eight possibilities: air, nitrogen, oxygen, argon, carbon dioxide, helium, methane, and hydrogen. Students are excited and motivated by the opportunity to come up with their own experimental approach to solving a

  2. A Size Exclusion Chromatography Laboratory with Unknowns for Introductory Students

    ERIC Educational Resources Information Center

    McIntee, Edward J.; Graham, Kate J.; Colosky, Edward C.; Jakubowski, Henry V.

    2015-01-01

    Size exclusion chromatography is an important technique in the separation of biological and polymeric samples by molecular weight. While a number of laboratory experiments have been published that use this technique for the purification of large molecules, this is the first report of an experiment that focuses on purifying an unknown small

  3. Concentration for unknown atomic entangled states via cavity decay

    SciTech Connect

    Cao Zhuoliang; Yang Ming; Zhang Lihua

    2006-01-15

    We present a physical scheme for entanglement concentration of unknown atomic entangled states via cavity decay. In the scheme, the atomic state is used as a stationary qubit and the photonic state as a flying qubit, and a close maximally entangled state can be obtained from pairs of partially entangled states probabilistically.

  4. 6. Photographic copy of photograph. No date. Photographer unknown. (Source: ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    6. Photographic copy of photograph. No date. Photographer unknown. (Source: SCIP office, Coolidge, AZ) CHINA WASH FLUME UNDER CONSTRUCTION - San Carlos Irrigation Project, China Wash Flume, Main (Florence-Case Grande) Canal at Station 137+00, T4S, R10E, S14, Coolidge, Pinal County, AZ

  5. 28. Photographic copy of historic construction drawing (date unknown, original ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    28. Photographic copy of historic construction drawing (date unknown, original print in possession of St. Paul District, U.S. Army Corps of Engineers) sectional elevation thru typical bay, view east - Mississippi River 9-Foot Channel, Lock & Dam No. 1, In Mississippi River at Mississippi Boulevard, below Ford Parkway Bridge, Saint Paul, Ramsey County, MN

  6. 56. Photographer unknown February 1925 HUMBOLDT COUNTY, SECTION J, HIGHWAY ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    56. Photographer unknown February 1925 HUMBOLDT COUNTY, SECTION J, HIGHWAY 1. HUM-1-J #36, SINKS ALONG OCEAN SHORE, 2-25. Stamped office copy. - Redwood National & State Parks Roads, California coast from Crescent City to Trinidad, Crescent City, Del Norte County, CA

  7. 54. Photographer unknown February 1925 HUMBOLDT COUNTY, SECTION J, HIGHWAY ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    54. Photographer unknown February 1925 HUMBOLDT COUNTY, SECTION J, HIGHWAY 1. HUM-1-J #34, SINKS ALONG HIGH. NEAR OCEAN, 2-25. - Redwood National & State Parks Roads, California coast from Crescent City to Trinidad, Crescent City, Del Norte County, CA

  8. Photographic copy of photograph, photographer unknown, 1912 (original print located ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Photographic copy of photograph, photographer unknown, 1912 (original print located at U.S. Bureau of Reclamation Upper Columbia Area Office, Yakima, Washington). "LINING OF OUTLET TUNNEL BELOW THE DAM" - Kachess Dam, Outlet Channel, Kachess River, 1.5 miles north of Interstate 90, Easton, Kittitas County, WA

  9. 5. VIEW EAST, height finder radar towers, radar tower (unknown ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    5. VIEW EAST, height finder radar towers, radar tower (unknown function), prime search radar tower, operations building, and central heating plant - Fort Custer Military Reservation, P-67 Radar Station, .25 mile north of Dickman Road, east of Clark Road, Battle Creek, Calhoun County, MI

  10. 4. VIEW NORTHEAST, radar tower (unknown function), prime search radar ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    4. VIEW NORTHEAST, radar tower (unknown function), prime search radar tower, emergency power building, and height finder radar tower - Fort Custer Military Reservation, P-67 Radar Station, .25 mile north of Dickman Road, east of Clark Road, Battle Creek, Calhoun County, MI

  11. Controlled remote implementation of partially unknown quantum operation

    NASA Astrophysics Data System (ADS)

    Fan, Qiubo; Liu, Dongdong

    2008-11-01

    A protocol for controlled remote implementation of a partially unknown operation on an arbitrary quantum state is proposed. In this protocol, a task can be performed using a GHZ state shared among three distant parties: Alice, Bob and the controller Charlie. This protocol is also generalized to the multi-party control system based on sharing an N-qubit GHZ state.

  12. 24. Photocopy of photograph sketch, Artist and photographer unknown, circa ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    24. Photocopy of photograph sketch, Artist and photographer unknown, circa 1930. Original sketch can be found in Marvine Colliery folder in the archives of the Lackawanna Historical Society, Scranton, Pennsylvania. ARTIST'S RENDERING OF CHANCE CONE, HUDSON COAL COMPANY, SCRANTON, PA. - Marvine Colliery, Breaker No. 2, West side Boulevard Avenue, between East Parker Street & Route 380, Scranton, Lackawanna County, PA

  13. Severe Scratcher-Reaction: An Unknown Health Hazard?

    PubMed Central

    Mikkelsen, Carsten Sauer; Holmgren, Helene Ringe; Arvesen, Kristian Bakke; Jarjis, Reem Dina; Gunnarsson, Gudjon Leifur

    2015-01-01

    Tattoos are well known to cause skin problems and the number of reported adverse reactions after tattooing has increased. Illegally imported tattoo ink is unrestrained and can contain unknown ingredients and contamination thereby posing a serious health hazard. We present a case illustrating the risk of pronounced phototoxic allergic reaction and other severe complications after using home kit tattoo ink. PMID:25918618

  14. Photographic copy of photograph, photographer unknown, 1 July 1911 (original ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Photographic copy of photograph, photographer unknown, 1 July 1911 (original print located at U.S. Bureau of Reclamation Upper Columbia Area Office, Yakima, Washington). "WATER FLOWING OVER TIMBER WEIR AT END OF CUT-OFF CHANNEL" - Kachess Dam, Cutoff Channel and Crib Structures, Kachess River, 1.5 miles north of Interstate 90, Easton, Kittitas County, WA

  15. 45. Photographic copy of photograph, photographer unknown, 28 October 1915 ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    45. Photographic copy of photograph, photographer unknown, 28 October 1915 (original print located at U.S. Bureau of Reclamation Upper Columbia Area Office, Yakima, Washington). "Flood water discharging thru flume." - Keechelus Dam, Yakima River, 10 miles northwest of Easton, Easton, Kittitas County, WA

  16. Intervention Validity of Cognitive Assessment: Knowns, Unknowables, and Unknowns

    ERIC Educational Resources Information Center

    Braden, Jeffery P.; Shaw, Steven R.

    2009-01-01

    The intervention validity of cognitive assessment batteries is considered within an historical context to identify what the evidence supports (knowns), what cannot be known (unknowables), and what is not yet known (unknowns). Two ways cognitive batteries could inform intervention are identified: a disordinal (i.e., aptitude-treatment interaction)

  17. A Size Exclusion Chromatography Laboratory with Unknowns for Introductory Students

    ERIC Educational Resources Information Center

    McIntee, Edward J.; Graham, Kate J.; Colosky, Edward C.; Jakubowski, Henry V.

    2015-01-01

    Size exclusion chromatography is an important technique in the separation of biological and polymeric samples by molecular weight. While a number of laboratory experiments have been published that use this technique for the purification of large molecules, this is the first report of an experiment that focuses on purifying an unknown small…

  18. 45. Photocopy of photograph (Pentran file), photographer and date unknown ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    45. Photocopy of photograph (Pentran file), photographer and date unknown (circa 1900). A single truck, solid mahagony car which ran between Hampton, Phoebus and Old Point Comfort. - Newport News & Old Point Railway & Electric Company, Trolley Barn & Administration Building, 3400 Victoria Boulevard, Hampton, Hampton, VA

  19. 18. Photocopy of photograph. Horgan, date unknown. Original negative can ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    18. Photocopy of photograph. Horgan, date unknown. Original negative can be found in D & H collection of the Anthracite Heritage Museum, Scranton, Pennsylvania. DETAIL VIEW OF SLUSH TROUGH FROM BREAKER NO. 2 TO BOREHOLE UNDER NORTH END OF BOILER HOUSE NO. 2, LOOKING SOUTH - Marvine Colliery, Breaker No. 2, West side Boulevard Avenue, between East Parker Street & Route 380, Scranton, Lackawanna County, PA

  20. 197. Photocopy of drawing, Twin Falls, Canal Company, date unknown. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    197. Photocopy of drawing, Twin Falls, Canal Company, date unknown. GATE STEMS AND LIFTING DEVICES, NO COUNTY; BLUEPRINT SKETCHES. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  1. Severe scratcher-reaction: an unknown health hazard?

    PubMed

    Mikkelsen, Carsten Sauer; Holmgren, Helene Ringe; Arvesen, Kristian Bakke; Jarjis, Reem Dina; Gunnarsson, Gudjon Leifur

    2015-03-16

    Tattoos are well known to cause skin problems and the number of reported adverse reactions after tattooing has increased. Illegally imported tattoo ink is unrestrained and can contain unknown ingredients and contamination thereby posing a serious health hazard. We present a case illustrating the risk of pronounced phototoxic allergic reaction and other severe complications after using home kit tattoo ink. PMID:25918618

  2. 79. photographer unknown 13 March 1936 AERIAL VIEW OF THE ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    79. photographer unknown 13 March 1936 AERIAL VIEW OF THE SPILLWAY DAM JUST BEFORE FLOODING THE FIRST STEP COFFERDAM. TWO CRIBS IN PLACE ON WASHINGTON SHORE FOR EACH LEG OF THE SECOND STEP COFFERDAM. CRIBWAYS NEAR UPSTREAM LEG. - Bonneville Project, Bonneville Dam, Columbia River, Bonneville, Multnomah County, OR

  3. 15. Photographic copy of photograph dated ca. 1929; Photographer unknown; ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    15. Photographic copy of photograph dated ca. 1929; Photographer unknown; Original in Rath collection at Grout Museum, Waterloo, Iowa; Filed under: Rath Packing Company, Box 4; THE RATH COMPLEX IN THE LATE 1920S; LOOKING WEST FROM 18TH STREET; LARGE BUILDING AT CENTER IS HOG KILL (BUILDING 40) - Rath Packing Company, Sycamore Street between Elm & Eighteenth Streets, Waterloo, Black Hawk County, IA

  4. Simulation in Familiarizing Older People with an Unknown Building.

    ERIC Educational Resources Information Center

    Hunt, Michael E.; Roll, Mary K.

    1987-01-01

    Examined how successfully an environmental simulation technique could provide older people with a working knowledge of an unknown building. Compared three groups of participants: site visit (n=20); simulation (n=20); and control (n=20). Found simulation comparable to site visits in instilling confidence in way-finding ability, providing a mental

  5. 15. UPSTREAM VIEW (PHOTOGRAPHER UNKNOWN) SHOWING BIG DALTON DAM NEAR ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    15. UPSTREAM VIEW (PHOTOGRAPHER UNKNOWN) SHOWING BIG DALTON DAM NEAR FULL CAPACITY AFTER CONSTRUCTION. PICTURE WAS DEVELOPED FROM COPY NEGATIVES WHICH WERE TAKEN ON 2-15-1973 BY PHOTOGRAPHER D. MEIER OF L.A. COUNTY PUBLIC WORKS. - Big Dalton Dam, 2600 Big Dalton Canyon Road, Glendora, Los Angeles County, CA

  6. 27. Photographic copy of photograph, photographer unknown, 15 October 1913 ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    27. Photographic copy of photograph, photographer unknown, 15 October 1913 (original print located at U.S. Bureau of Reclamation Upper Columbia Area Office, Yakima, Washington). "Pile driver driving piling for core-wall. Moving for the next pile." - Keechelus Dam, Yakima River, 10 miles northwest of Easton, Easton, Kittitas County, WA

  7. 48. Photographic copy of photograph, photographer unknown, 5 September 1916 ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    48. Photographic copy of photograph, photographer unknown, 5 September 1916 (original print located at U.S. Bureau of Reclamation Upper Columbia Area Office, Yakima, Washington). "Piling logs with Washington donkey." - Keechelus Dam, Yakima River, 10 miles northwest of Easton, Easton, Kittitas County, WA

  8. 17. Photographic copy of photograph, photographer unknown, 1940 (original print ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    17. Photographic copy of photograph, photographer unknown, 1940 (original print located at F.E. Warren Air Force Base Archives, Cheyenne, Wyoming). GYMNASIUM SOON AFTER COMPLETION. VIEW TO EAST. - Fort David A. Russell, Gymnasium, Randall Avenue between Fourth & Fifth Streets, Cheyenne, Laramie County, WY

  9. 17. Photocopy of a photograph, source and date unknown GENERAL ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    17. Photocopy of a photograph, source and date unknown GENERAL VIEW OF FRONT FACADE OF MT. CLARE STATION; PASSENGER CAR SHOP IN REAR - Baltimore & Ohio Railroad, Mount Clare Passenger Car Shop, Southwest corner of Pratt & Poppleton Streets, Baltimore, Independent City, MD

  10. 1. Drop Structure on the Arizona Crosscut Canal. Photographer unknown, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. Drop Structure on the Arizona Crosscut Canal. Photographer unknown, no date. Note that caption is incorrect: in relation to Camelback Mountain (rear), this can only be the Old Crosscut. Source: reprinted from the 13th Annual Report of the U.S. Geological Survey, 1893. - Old Crosscut Canal, North Side of Salt River, Phoenix, Maricopa County, AZ

  11. Discover the Unknown Chekhov in Your ESL Classroom

    ERIC Educational Resources Information Center

    Beliavsky, Ninah

    2007-01-01

    The author, an English-as-a-Second-Language (ESL) teacher, believes that for stories to be a successful tool in classroom instruction, they need to have universal themes, and they must deal with situations that the students could readily identify with regardless of their language, culture, or religion. In this article, she introduces the unknown

  12. 14. PHOTOCOPY OF PHOTOGRAPH: DOMED CEILING OF AUDITORIUM, Date unknown. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    14. PHOTOCOPY OF PHOTOGRAPH: DOMED CEILING OF AUDITORIUM, Date unknown. from FOURTH CHURCH OF CHRIST, SCIENTIST ARCHIVE (used with permission) E. S. Cheney and R. B. Bird, Photographers, Cheney Photo Adv. Co., Oakland, California. - Fourth Church of Christ, Scientist, 1330 Lakeshore Avenue, Oakland, Alameda County, CA

  13. 10. PHOTOCOPY OF PHOTOGRAPH: WEST FRONT AT NIGHT, Date unknown. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    10. PHOTOCOPY OF PHOTOGRAPH: WEST FRONT AT NIGHT, Date unknown. from FOURTH CHURCH OF CHRIST, SCIENTIST ARCHIVE (used with permission) E. S. Cheney and R. B. Bird, Photographers Cheney Photo Adv. Co., Oakland, California - Fourth Church of Christ, Scientist, 1330 Lakeshore Avenue, Oakland, Alameda County, CA

  14. 38. Photocopy of photograph (Pentran file), photographer unknown. Bus garage ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    38. Photocopy of photograph (Pentran file), photographer unknown. Bus garage to left now demolished. Trolley car drivers, maintenance personnel and management staff in 1915. VIEW SOUTH - Newport News & Old Point Railway & Electric Company, Trolley Barn & Administration Building, 3400 Victoria Boulevard, Hampton, Hampton, VA

  15. 4. Photographic copy of photo dated ca. 1936; Photographer unknown; ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    4. Photographic copy of photo dated ca. 1936; Photographer unknown; Original in Rath collection at Grout Museum, Waterloo, Iowa; Filed under: Rath Packing Company, Box 5; SAUSAGES HANGING IN CURING ROOM AT RATH PACKING COMPANY - Rath Packing Company, Cooler Building, Sycamore Street between Elm & Eighteenth Streets, Waterloo, Black Hawk County, IA

  16. Photographic copy of photograph, photographer unknown, 16 September 1913 (original ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Photographic copy of photograph, photographer unknown, 16 September 1913 (original print located at U.S. Bureau of Reclamation Upper Columbia Area Office, Yakima, Washington). "VIEW OF LOG BOOM COMPOSED OF TIMBER CUT DURING CLEARING OPERATIONS OF THE RESERVOIR SITE" - Kachess Dam, Kachess River, 1.5 miles north of Interstate 90, Easton, Kittitas County, WA

  17. Photographic copy of photograph, photographer unknown, 6 June 1914 (original ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Photographic copy of photograph, photographer unknown, 6 June 1914 (original print located at U.S. Bureau of Reclamation Upper Columbia Area Office, Yakima, Washington). "CATERPILLAR TRACTOR USED TO HAUL LOGS TO THE LAKE AND WOOD AND TIE TIMBER TO THE MILL AT EASTON" - Kachess Dam, Kachess River, 1.5 miles north of Interstate 90, Easton, Kittitas County, WA

  18. 10. Photocopy of photograph. Horgan, date unknown Original photograph can ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    10. Photocopy of photograph. Horgan, date unknown Original photograph can be found in Marvine Colliery folder, archives of the Lackawanna Historical Society, Scranton, Pennsylvania. INTERIOR VIEW OF MINERS CHANGING ROOM, SHOWING CLOTHING SUSPENDED FROM CEILING - Marvine Colliery, West side Boulevard Avenue, between East Parker Street & Route 380, Scranton, Lackawanna County, PA

  19. 6. Photocopy of photograph. Photographer unknown. ca. 1922 Original photograph ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    6. Photocopy of photograph. Photographer unknown. ca. 1922 Original photograph can be found in Marvine Colliery folder, archives of The Lackawanna Historical Society, Scranton, Pennsylvania. AERIAL VIEW OF ENTIRE COMPLEX, LOOKING EAST-NORTHEAST - Marvine Colliery, West side Boulevard Avenue, between East Parker Street & Route 380, Scranton, Lackawanna County, PA

  20. 178. Photocopy of photograph, photographer unknown, 1927 (original print located ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    178. Photocopy of photograph, photographer unknown, 1927 (original print located at Rocky Mountain Arsenal, Commerce City, Colorado). MAURER CHILDREN. - Rocky Mountain Arsenal, Bounded by Ninety-sixth Avenue & Fifty-sixth Avenue, Buckley Road, Quebec Street & Colorado Highway 2, Commerce City, Adams County, CO

  1. 17. Photographic copy of photograph, photographer unknown, 22 November 1906 ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    17. Photographic copy of photograph, photographer unknown, 22 November 1906 (original print located at U.S. Bureau of Reclamation Upper Columbia Area Office, Yakima, Washington). "Government camp at foot of lake." - Keechelus Dam, Yakima River, 10 miles northwest of Easton, Easton, Kittitas County, WA

  2. 18. Photographic copy of photograph, photographer unknown, 10 January 1907 ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    18. Photographic copy of photograph, photographer unknown, 10 January 1907 (original print located at U.S. Bureau of Reclamation Upper Columbia Area Office, Yakima, Washington). "Government camp on right bank of Yakima River." - Keechelus Dam, Yakima River, 10 miles northwest of Easton, Easton, Kittitas County, WA

  3. 6. Photographic copy of historic photograph (date and photograph unknown) ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    6. Photographic copy of historic photograph (date and photograph unknown) of upper dam showing retaining walls (original in possession of United States Department of Agriculture-Forest Service-Allegheny National Forest). VIEW WEST - Loleta Recreation Area, Upper Dam, 6 miles Southeast of interesection of State Route 24041 & State Route 66, Loleta, Elk County, PA

  4. Photocopy of photograph (from NBPPNSY) photographer unknown, 1988 view east ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Photocopy of photograph (from NBP-PNSY) photographer unknown, 1988 view east of marine railway (Haer no. Pa-387-W). The railway was being dismantled at the time this photograph was taken. - Naval Base Philadelphia-Philadelphia Naval Shipyard, League Island, Philadelphia, Philadelphia County, PA

  5. Intervention Validity of Cognitive Assessment: Knowns, Unknowables, and Unknowns

    ERIC Educational Resources Information Center

    Braden, Jeffery P.; Shaw, Steven R.

    2009-01-01

    The intervention validity of cognitive assessment batteries is considered within an historical context to identify what the evidence supports (knowns), what cannot be known (unknowables), and what is not yet known (unknowns). Two ways cognitive batteries could inform intervention are identified: a disordinal (i.e., aptitude-treatment interaction)…

  6. 23. Historic American Buildings Survey unknown draftsman June 1908 BROWN ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    23. Historic American Buildings Survey unknown draftsman June 1908 BROWN LINE OF ORIGINAL DRAWING OF DOOR DETAILS From the Collection of Dan Peterson, A.I.A. Architect - Santa Rosa Post Office & Federal Building, 401 Fifth Street (moved to Seventh Street), Santa Rosa, Sonoma County, CA

  7. 21. Historic American Buildings Survey unknown draftsman June 1908 BROWN ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    21. Historic American Buildings Survey unknown draftsman June 1908 BROWN LINE OF ORIGINAL DRAWING OF ROOF FRAMING AND TRUSSES From the Collection of Dan Peterson, A.I.A. Architect - Santa Rosa Post Office & Federal Building, 401 Fifth Street (moved to Seventh Street), Santa Rosa, Sonoma County, CA

  8. 10. Historic American Buildings Survey unknown draftsman June 1908 BROWN ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    10. Historic American Buildings Survey unknown draftsman June 1908 BROWN LINE OF ORIGINAL DRAWING OF FRONT ELEVATION From the Collection of Dan Peterson, A.I.A. Architect - Santa Rosa Post Office & Federal Building, 401 Fifth Street (moved to Seventh Street), Santa Rosa, Sonoma County, CA

  9. 177. Photocopy of photograph, photographer unknown, ca. 1925 (original print ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    177. Photocopy of photograph, photographer unknown, ca. 1925 (original print located at Rocky Mountain Arsenal, Commerce City, Colorado). ROSE HILL SCHOOL. - Rocky Mountain Arsenal, Bounded by Ninety-sixth Avenue & Fifty-sixth Avenue, Buckley Road, Quebec Street & Colorado Highway 2, Commerce City, Adams County, CO

  10. 7. Photocopy of photograph, date unknown. VIEW OF WEST HIGH ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    7. Photocopy of photograph, date unknown. VIEW OF WEST HIGH STREET BRIDGE OVER SOUTH BRANCH OF FRENCH CREEK, WITH PENN RAILROAD BRIDGE IN BACKGROUND. (Original in Union City Historical Museum.) 8'x10' enlargement from 4'x5' negative. - Bridge Street Bridge, Spanning Little French Creek at Bridge Street, Union City, Erie County, PA

  11. 4. Photocopy of photograph, date unknown. VIEW OF EDWIN CLARK ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    4. Photocopy of photograph, date unknown. VIEW OF EDWIN CLARK RESIDENCE ON EASTERN SIDE OF BRIDGE STREET. (Original in possession of the Erie County Historical Society.) 8'x10' enlargement from 4'x5' negative. - Bridge Street Bridge, Spanning Little French Creek at Bridge Street, Union City, Erie County, PA

  12. 42. Photographic copy of photograph, photographer unknown, 26 May 1915 ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    42. Photographic copy of photograph, photographer unknown, 26 May 1915 (original print located at U.S. Bureau of Reclamation Upper Columbia Area Office, Yakima, Washington). "Laying tar paper and sheeting inside of flume." - Keechelus Dam, Yakima River, 10 miles northwest of Easton, Easton, Kittitas County, WA

  13. Photographic copy of photograph, date unknown (original print located at ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Photographic copy of photograph, date unknown (original print located at the History Office, U.S. Army South, Fort Clayton, Republic of Panama). Early view of Fort Sherman from boat dock with theater in background, facing southwest. - Fort Sherman, Toro Point on Limon Bay, Colon, Former Panama Canal Zone, CZ

  14. 24. Photographic copy of historic photo of unknown date (original ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    24. Photographic copy of historic photo of unknown date (original filed in drawer 98, Bridge Division, Department of Public Works, St. Paul City Annex). 3/4 view of main spans of Selby Avenue Bridge similar to that shown in MN-61-4. - Selby Avenue Bridge, Spanning Short Line Railways track at Selby Avenue between Hamline & Snelling Avenues, Saint Paul, Ramsey County, MN

  15. 8. Photocopy of photograph, date unknown (original print on file ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    8. Photocopy of photograph, date unknown (original print on file at U.S. Army Intelligence Security Command, Fort Belvoir, Virginia). VIEW OF SULLINS COLLEGE, BRISTOL, VIRGINIA. SULLINS COLLEGE PRESIDENT WILLIAM MARTIN FOUNDED ARLINGTON HALL JUNIOR COLLEGE, AND APPEARS TO HAVE LOOSELY BASED THE DESIGN OF THE NEW SCHOOL'S BUILDINGS UPON THOSE AT SULLINS. - Arlington Hall Station, 4000 Arlington Boulevard, Arlington, Arlington County, VA

  16. 44. Photocopy of photograph, photographer unknown, 1415 June 1929 (original ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    44. Photocopy of photograph, photographer unknown, 14-15 June 1929 (original print located at Utah State Historical Society Photograph Collection, Salt Lake City UT). DEDICATION CEREMONY AT BRIDGE. - Navajo Bridge, Spanning Colorado River at U.S. Highway 89 Alternate, Page, Coconino County, AZ

  17. 36. Historic photograph, photographer unknown, c. 1943. PHOTOGRAPH OF GEORGE ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    36. Historic photograph, photographer unknown, c. 1943. PHOTOGRAPH OF GEORGE E. SMITH (RIGHT), ONE OF THE PRINCIPAL BUILDERS OF THE VERDE RIVER SHEEP BRIDGE AND HIS SON, B. L. 'LES' SMITH. - Verde River Sheep Bridge, Spanning Verde River (Tonto National Forest), Cave Creek, Maricopa County, AZ

  18. 33. Historic photograph, photographer unknown, February 13, 1944. VIEW OF ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    33. Historic photograph, photographer unknown, February 13, 1944. VIEW OF HORSESHOE DAM SITE BRIDGE, LOOKING WEST, SHOWING BRIDGE SPANNING THE VERDE RIVER JUST AS WORK ON THE DAM IS BEGINNING. - Verde River Sheep Bridge, Spanning Verde River (Tonto National Forest), Cave Creek, Maricopa County, AZ

  19. 17. Historic photograph, photographer unknown, 1943. ENLARGEMENT OF PORTION OF ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    17. Historic photograph, photographer unknown, 1943. ENLARGEMENT OF PORTION OF PHOTOGRAPH AZ-10-16, SHOWING WOOD TOWER BEFORE CONCRETE WAS ADDED. NOTE GUY CABLE CONNECTED TO TOP RIGHT OF TOWER. - Verde River Sheep Bridge, Spanning Verde River (Tonto National Forest), Cave Creek, Maricopa County, AZ

  20. 37 CFR 382.7 - Unknown copyright owners.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ....7 Section 382.7 Patents, Trademarks, and Copyrights COPYRIGHT ROYALTY BOARD, LIBRARY OF CONGRESS RATES AND TERMS FOR STATUTORY LICENSES RATES AND TERMS FOR DIGITAL TRANSMISSIONS OF SOUND RECORDINGS AND... SATELLITE DIGITAL AUDIO RADIO SERVICES Preexisting Subscription Services § 382.7 Unknown copyright...

  1. 37 CFR 260.7 - Unknown copyright owners.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 37 Patents, Trademarks, and Copyrights 1 2010-07-01 2010-07-01 false Unknown copyright owners. 260.7 Section 260.7 Patents, Trademarks, and Copyrights COPYRIGHT OFFICE, LIBRARY OF CONGRESS COPYRIGHT ARBITRATION ROYALTY PANEL RULES AND PROCEDURES RATES AND TERMS FOR PREEXISTING SUBSCRIPTION SERVICES'...

  2. 38. Photographic copy of photograph, photographer unknown, 26 March 1915 ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    38. Photographic copy of photograph, photographer unknown, 26 March 1915 (original print located at U.S. Bureau of Reclamation Upper Columbia Area Office, Yakima, Washington). " Dredge after failure of control dam." - Keechelus Dam, Yakima River, 10 miles northwest of Easton, Easton, Kittitas County, WA

  3. 39. Photographic copy of photograph, photographer unknown, 26 March 1915 ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    39. Photographic copy of photograph, photographer unknown, 26 March 1915 (original print located at U.S. Bureau of Reclamation Upper Columbia Area Office, Yakima, Washington). "View of control dam after failure." - Keechelus Dam, Yakima River, 10 miles northwest of Easton, Easton, Kittitas County, WA

  4. 11. Photocopy of photograph. Photographer unknown 3 May 1935 PART ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    11. Photocopy of photograph. Photographer unknown 3 May 1935 PART OF 1.4 MILLION POUNDS OF REINFORCING STEEL USED IN THE TANNER CREEK RAILROAD VIADUCT. Original historic photograph located at the Bonneville Powerhouse, Bonneville, Oregon. - Bonneville Project, Fish Hatchery, On Columbia River bordered on South by Union Pacific, Bonneville, Multnomah County, OR

  5. 12. Photocopy of photograph. Photographer unknown undated COLLAPSIBLE FORM FOR ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    12. Photocopy of photograph. Photographer unknown undated COLLAPSIBLE FORM FOR CONCRETE AREA ON TANNER CREEK RAILROAD VIADUCT. Original historic photograph located at the Bonneville Powerhouse, Bonneville, Oregon. NOTE: PRINT FROM 8X10 NEGATIVE - Bonneville Project, Fish Hatchery, On Columbia River bordered on South by Union Pacific, Bonneville, Multnomah County, OR

  6. 10. Photocopy of photograph. Photographer unknown 28 March 1935 PIERS ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    10. Photocopy of photograph. Photographer unknown 28 March 1935 PIERS AND ARCHES FOR TANNER CREEK RAILROAD VIADUCT ACROSS HATCHERY GROUNDS UNDER CONSTRUCTION. Original historic photograph located at the Bonneville Powerhouse, Bonneville, Oregon. - Bonneville Project, Fish Hatchery, On Columbia River bordered on South by Union Pacific, Bonneville, Multnomah County, OR

  7. 13. Photocopy of photograph. Photographer unknown 30 October 1935 TANNER ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    13. Photocopy of photograph. Photographer unknown 30 October 1935 TANNER CREEK RAILROAD VIADUCT COMPLETE, AWAITING INSTALLATION OF RAILROAD TRACKS. Original historic photograph located at the Bonneville Powerhouse, Bonneville, Oregon. - Bonneville Project, Fish Hatchery, On Columbia River bordered on South by Union Pacific, Bonneville, Multnomah County, OR

  8. Fever of unknown origin in childhood: difficulties in diagnosis.

    PubMed Central

    Martin, K; Davies, E G; Axford, J S

    1994-01-01

    We have described a child with systemic onset juvenile chronic arthritis who presented initially with fever of unknown origin. Treatment of a presumed infection led to a severe allergic response with Stevens-Johnson syndrome, renal failure and DIC. This reaction obscured the features of the underlying disease and delayed the diagnosis. Images PMID:7944613

  9. Photographic copy of photograph, photographer unknown, ca. 1930 (original print ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Photographic copy of photograph, photographer unknown, ca. 1930 (original print located at Colorado Historical Society, Denver, Colorado). Overall view of Southern UTE Agency Boarding School, with boys dormitory at center. - Southern Ute Boarding School, Boy's Dormitory, Ouray & Capote Drives, Ignacio, La Plata County, CO

  10. Photographic copy of photograph, photographer unknown, 1942 (original print located ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Photographic copy of photograph, photographer unknown, 1942 (original print located at Southern UTE Agency, Bureau of Indian Affairs Office, Ignacio, Colorado). West front and south side of boy's dormitory. - Southern Ute Boarding School, Boy's Dormitory, Ouray & Capote Drives, Ignacio, La Plata County, CO

  11. Photographic copy of photograph, photographer unknown, ca. 1930 (original print ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Photographic copy of photograph, photographer unknown, ca. 1930 (original print located at Colorado Historical Society, Denver, Colorado). Overall views of Southern Ute Agency Boarding School, with boys' dormitory at left of lower view. - Southern Ute Boarding School, Boy's Dormitory, Ouray & Capote Drives, Ignacio, La Plata County, CO

  12. Photographic copy of photograph, photographer unknown, 1942 (original print located ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Photographic copy of photograph, photographer unknown, 1942 (original print located at Southern UTE Agency, Bureau of Indian Affairs Office, Ignacio, Colorado). East rear and north side of boy's dormitory. - Southern Ute Boarding School, Boy's Dormitory, Ouray & Capote Drives, Ignacio, La Plata County, CO

  13. Photographic copy of photograph, photographer unknown, ca. 1915 (original print ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Photographic copy of photograph, photographer unknown, ca. 1915 (original print located at Southern Ute Agency, Bureau of Indian Affairs Office, Ignacio, Colorado). Overall view of Southern Ute Agency Boarding School, with main building (boy's dormitory) at right. - Southern Ute Boarding School, Boy's Dormitory, Ouray & Capote Drives, Ignacio, La Plata County, CO

  14. 187. Photocopy of drawing, Twin Falls Canal Company, date unknown. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    187. Photocopy of drawing, Twin Falls Canal Company, date unknown. TOPOGRAPHICAL MAP OF MILNER DAM LOCATION, TWIN FALLS COUNTY, MILNER, IDAHO; BLUEPRINT MAP. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  15. 192. Photocopy of drawing, Twin Falls Canal Company, date unknown. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    192. Photocopy of drawing, Twin Falls Canal Company, date unknown. TOPOGRAPHICAL MAP (DAM DRAWN IN), MILNER SITE, TWIN FALLS COUNTY, MILNER, IDAHO; RIGHT SIDE OF MAP (LEFT ON ID-15-183). - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  16. Unknown Gases: Student-Designed Experiments in the Introductory Laboratory.

    ERIC Educational Resources Information Center

    Hanson, John; Hoyt, Tim

    2002-01-01

    Introductory students design and carry-out experimental procedures to determine the identity of three unknown gases from a list of eight possibilities: air, nitrogen, oxygen, argon, carbon dioxide, helium, methane, and hydrogen. Students are excited and motivated by the opportunity to come up with their own experimental approach to solving a…

  17. 46. Photocopy of photograph, dated June 24, 1960, photographer unknown. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    46. Photocopy of photograph, dated June 24, 1960, photographer unknown. Original photograph property of the U.S. Coast Guard. VIEW FROM BOW SHOWING MAIN DECK AND PILOTHOUSE. NOTE BUOYS STORED ON PIER AT RIGHT. - U.S. Coast Guard Cutter WHITE HEATH, USGS Integrated Support Command Boston, 427 Commercial Street, Boston, Suffolk County, MA

  18. 47. Photocopy of photograph, dated July 1, 1960, photographer unknown. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    47. Photocopy of photograph, dated July 1, 1960, photographer unknown. Original photograph property of the U.S. Coast Guard. PORT SIDE VIEW IN HARBOR. - U.S. Coast Guard Cutter WHITE HEATH, USGS Integrated Support Command Boston, 427 Commercial Street, Boston, Suffolk County, MA

  19. 42. Photocopy of photograph, ca. 1950, photographer unknown. Original photograph ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    42. Photocopy of photograph, ca. 1950, photographer unknown. Original photograph property of the U.S. Coast Guard. STARBOARD SIDE OF BOW. - U.S. Coast Guard Cutter WHITE LUPINE, U.S. Coast Guard Station Rockland, east end of Tillson Avenue, Rockland, Knox County, ME

  20. 43. Photocopy of photograph, dated July 1, 1947, photographer unknown. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    43. Photocopy of photograph, dated July 1, 1947, photographer unknown. Original photograph property of the U.S. Coast Guard. PORT SIDE VIEW WHILE IN U.S. NAVY SERVICE AS YF 445. NOTE GRAY PAINT. - U.S. Coast Guard Cutter WHITE HEATH, USGS Integrated Support Command Boston, 427 Commercial Street, Boston, Suffolk County, MA

  1. 44. Photocopy of photograph, dated February 19, 1948, photographer unknown. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    44. Photocopy of photograph, dated February 19, 1948, photographer unknown. Original photograph property of the U.S. Coast Guard. STARBOARD SIDE OF BOW DURING UNDERWAY TRIAL. - U.S. Coast Guard Cutter WHITE HEATH, USGS Integrated Support Command Boston, 427 Commercial Street, Boston, Suffolk County, MA

  2. 44. Photocopy of photograph, dated June 19, 1959, photographer unknown. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    44. Photocopy of photograph, dated June 19, 1959, photographer unknown. Original photograph property of the U.S. Coast Guard. PORT SIDE VIEW IN HARBOR. - U.S. Coast Guard Cutter WHITE LUPINE, U.S. Coast Guard Station Rockland, east end of Tillson Avenue, Rockland, Knox County, ME

  3. 48. Photocopy of photograph, dated March 23, 1964, photographer unknown. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    48. Photocopy of photograph, dated March 23, 1964, photographer unknown. Original photograph property of the U.S. Coast Guard. AERIAL VIEW OF STARBOARD SIDE WHILE UNDERWAY. - U.S. Coast Guard Cutter WHITE HEATH, USGS Integrated Support Command Boston, 427 Commercial Street, Boston, Suffolk County, MA

  4. 47. Photocopy of photograph, dated March 26, 1969, photographer unknown. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    47. Photocopy of photograph, dated March 26, 1969, photographer unknown. Original photograph property of the U.S. Coast Guard. STARBOARD SIDE OF BOW. - U.S. Coast Guard Cutter WHITE LUPINE, U.S. Coast Guard Station Rockland, east end of Tillson Avenue, Rockland, Knox County, ME

  5. 43. Photocopy of photograph, dated July 13, 1953, photographer unknown. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    43. Photocopy of photograph, dated July 13, 1953, photographer unknown. Original photograph property of the U.S. Coast Guard. LOADING OF LIGHTED BUOYS WITH MOORINGS OF HEAVY CHAIN. CONCRETE, AND CAST-IRON SINKERS. - U.S. Coast Guard Cutter WHITE LUPINE, U.S. Coast Guard Station Rockland, east end of Tillson Avenue, Rockland, Knox County, ME

  6. 45. Photocopy of photograph, dated February 19, 1948, photographer unknown. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    45. Photocopy of photograph, dated February 19, 1948, photographer unknown. Original photograph property of the U.S. Coast Guard. STARBOARD SIDE VIEW DURING UNDERWAY TRIAL. - U.S. Coast Guard Cutter WHITE HEATH, USGS Integrated Support Command Boston, 427 Commercial Street, Boston, Suffolk County, MA

  7. 46. Photocopy of photograph, dated March 26, 1969, photographer unknown. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    46. Photocopy of photograph, dated March 26, 1969, photographer unknown. Original photograph property of the U.S. Coast Guard. STARBOARD SIDE OF BOW. - U.S. Coast Guard Cutter WHITE LUPINE, U.S. Coast Guard Station Rockland, east end of Tillson Avenue, Rockland, Knox County, ME

  8. 45. Photocopy of photograph, dated September 14, 1964, photographer unknown. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    45. Photocopy of photograph, dated September 14, 1964, photographer unknown. Original photograph property of the U.S. Coast Guard. PILOT HOUSE SHOWING STARBOARD SIDE. - U.S. Coast Guard Cutter WHITE LUPINE, U.S. Coast Guard Station Rockland, east end of Tillson Avenue, Rockland, Knox County, ME

  9. 380. Delineator Unknown December 1932 STATE OF CALIFORNIA; DEPARTMENT OF ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    380. Delineator Unknown December 1932 STATE OF CALIFORNIA; DEPARTMENT OF PUBLIC WORKS; SAN FRANCISCO - OAKLAND BAY BRIDGE; CABLES & ATTACHMENTS WEST BAY CROSSING; CABLE BANDS; CONTRACT NO. 6A; DRAWING NO. 3 - San Francisco Oakland Bay Bridge, Spanning San Francisco Bay, San Francisco, San Francisco County, CA

  10. 362. Delineator Unknown June 1933 STATE OF CALIFORNIA; DEPARTMENT OF ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    362. Delineator Unknown June 1933 STATE OF CALIFORNIA; DEPARTMENT OF PUBLIC WORKS; SAN FRANCISCO - OAKLAND BAY BRIDGE; SAN FRANCISCO ANCHORAGE; EYE BAR ANCHOR CHAIN; CONTRACT NO. 3; SUP. DRAWING NO. 11-A - San Francisco Oakland Bay Bridge, Spanning San Francisco Bay, San Francisco, San Francisco County, CA

  11. 374. Delineator Unknown June 1933 STATE OF CALIFORNIA; DEPARTMENT OF ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    374. Delineator Unknown June 1933 STATE OF CALIFORNIA; DEPARTMENT OF PUBLIC WORKS; SAN FRANCISCO - OAKLAND BAY BRIDGE; YERBA BUENA CROSSING; EYE BAR CHAIN; CONTRACT NO. 5; SUP. DRAWING NO. 12A - San Francisco Oakland Bay Bridge, Spanning San Francisco Bay, San Francisco, San Francisco County, CA

  12. 406. Delineator Unknown April 19, 1933 ELEVATION STUDY FOR SAN ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    406. Delineator Unknown April 19, 1933 ELEVATION STUDY FOR SAN FRANCISCO ANCHORAGE; SAN FRANCISCO - OAKLAND BAY BRIDGE; BOARD OF CONSULTING ARCHITECTS; TIMOTHY L. PFLUEGER, ARTHUR BROWN JR., JOHN J. DONOVAN; SHEET 23 - San Francisco Oakland Bay Bridge, Spanning San Francisco Bay, San Francisco, San Francisco County, CA

  13. 198. Photocopy of drawing, Twin Falls Canal Company, date unknown. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    198. Photocopy of drawing, Twin Falls Canal Company, date unknown. SEGREGATION OF PUBLIC LAND, LINCOLN AND CASSIA COUNTIES; MAP. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  14. 25. Photographic copy of undated photo; Photographer unknown; Original in ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    25. Photographic copy of undated photo; Photographer unknown; Original in Rath collection at Iowa State University Libraries, Ames, Iowa; Filed under: Rath Packing Company, Printed Photographs, Symbol M, Box 2; REMOVING HIDES ON THE SKINNING TABLE; CARCASSES IN HALF-HOIST POSITION; LOOKING SOUTH - Rath Packing Company, Beef Killing Building, Sycamore Street between Elm & Eighteenth Streets, Waterloo, Black Hawk County, IA

  15. 24. Photographic copy of undated photo; Photographer unknown; Original in ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    24. Photographic copy of undated photo; Photographer unknown; Original in Rath collection at Iowa State University Libraries, Ames, Iowa; Filed under: Rath Packing Company, Printed Photographs, Symbol M, Box 2; REMOVING HIDES ON THE MOVING SKINNING TABLE; LOOKING NORTH - Rath Packing Company, Beef Killing Building, Sycamore Street between Elm & Eighteenth Streets, Waterloo, Black Hawk County, IA

  16. 26. Photographic copy of undated photo; Photographer unknown; Original in ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    26. Photographic copy of undated photo; Photographer unknown; Original in Rath collection at Iowa State University Libraries, Ames, Iowa; Filed under: Rath Packing Company, Printed Photographs, Symbol M, Box 2; EVISCERATING CATTLE CARCASSES INSIDE BUILDING 149 - Rath Packing Company, Beef Killing Building, Sycamore Street between Elm & Eighteenth Streets, Waterloo, Black Hawk County, IA

  17. 28. Photographic copy of undated photo; Photographer unknown; Original in ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    28. Photographic copy of undated photo; Photographer unknown; Original in Rath collection at Iowa State University Libraries, Ames, Iowa; Filed under: Rath Packing Company, Printed Photographs, Symbol M, Box 2; WORKERS STACKING HIDES IN THE CELLAR OF BUILDING 149 - Rath Packing Company, Beef Killing Building, Sycamore Street between Elm & Eighteenth Streets, Waterloo, Black Hawk County, IA

  18. 22. Historic American Buildings Survey Unknown Draftsman 1931 BLUEPRINT OF ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    22. Historic American Buildings Survey Unknown Draftsman 1931 BLUEPRINT OF 1932 ADDITIONS, DETAIL PLAN AND ELEVATIONS OF LOADING DOCK AND CANOPY From the Collection of Walker and Walker, Architects-Engineers - U.S. Post Office & Courthouse, Marshall & Texas Streets, Shreveport, Caddo Parish, LA

  19. 189. Photocopy of drawing, Twin Falls Canal Company, date unknown. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    189. Photocopy of drawing, Twin Falls Canal Company, date unknown. ROCK CREEK CROSSING, LOW LINE CANAL, TWIN FALLS COUNTY, SOUTH OF KIMBERLY, IDAHO; BLUEPRINT. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  20. 195. Photocopy of drawing, Twin Falls Canal Company, date unknown. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    195. Photocopy of drawing, Twin Falls Canal Company, date unknown. PLAN OF CONSTRUCTION AREA PLANT, TWIN FALLS COUNTY, MILNER, IDAHO; BLUEPRINT. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  1. 191. Photocopy of drawing, Twin Falls Canal Company, date unknown. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    191. Photocopy of drawing, Twin Falls Canal Company, date unknown. SPILLWAY GATES, MILNER DAM, TWIN FALLS COUNTY, MILNER, IDAHO; BLUEPRINT. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  2. 186. Photocopy of drawing, Twin Falls Canal Company, date unknown. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    186. Photocopy of drawing, Twin Falls Canal Company, date unknown. DRY CREEK RESERVOIR, CASSIA COUNTY (NOW TWIN FALLS COUNTY); MAP. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  3. 194. Photocopy of drawing, Twin Falls Canal Company, date unknown. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    194. Photocopy of drawing, Twin Falls Canal Company, date unknown. PROFILE AND GATE PLAN, NORTH ISLAND CROSS SECTION OF DAM, TWIN FALLS COUNTY, MILNER, IDAHO; BLUEPRINT. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  4. 193. Photocopy of Photograph, Twin Falls Canal Company, date unknown. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    193. Photocopy of Photograph, Twin Falls Canal Company, date unknown. MILNER DAM PROFILE, TWIN FALLS COUNTY, MILNER, IDAHO; BLUEPRINT. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  5. 185. Photocopy of drawing, Twin Falls Canal Company, date unknown. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    185. Photocopy of drawing, Twin Falls Canal Company, date unknown. MILNER DAM CROSS SECTION PLAN, TWIN FALLS COUNTY, MILNER, IDAHO; BLUEPRINT. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  6. 190. Photocopy of drawing, Twin Falls Canal Company, date unknown. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    190. Photocopy of drawing, Twin Falls Canal Company, date unknown. GENERAL PLAN OF MILNER DAM TUNNELS, TWIN FALLS COUNTY, MILNER, IDAHO; BLUEPRINT. - Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 miles West of city of Burley, Idaho, Twin Falls, Twin Falls County, ID

  7. 46. Photocopy of photograph, photographer unknown, CA. 1935 (original print ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    46. Photocopy of photograph, photographer unknown, CA. 1935 (original print located at Arizona Department of Transportation, Phoenix AZ). BRIDGE WITH NEW COMMEMORATIVE PLATE INSTALLED IN 1934. - Navajo Bridge, Spanning Colorado River at U.S. Highway 89 Alternate, Page, Coconino County, AZ

  8. 42. Photocopy of photograph, photographer unknown, 12 September 1928 (original ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    42. Photocopy of photograph, photographer unknown, 12 September 1928 (original print located at Arizona Department of Transportation, Phoenix AZ). BRIDGE IMMEDIATELY AFTER INSERTION OF CENTER PIN. - Navajo Bridge, Spanning Colorado River at U.S. Highway 89 Alternate, Page, Coconino County, AZ

  9. 45. Photocopy of photograph, photographer unknown, 1415 June 1929 (original ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    45. Photocopy of photograph, photographer unknown, 14-15 June 1929 (original print located at Arizona Department of Transportation, Phoenix AZ). AIRPLANE STUNT DURING DEDICATION CEREMONY AT BRIDGE. - Navajo Bridge, Spanning Colorado River at U.S. Highway 89 Alternate, Page, Coconino County, AZ

  10. Detection of Answer Copying with Unknown Item and Trait Parameters.

    ERIC Educational Resources Information Center

    Wollack, James A.; Cohen, Allan S.

    1998-01-01

    Investigated empirical Type I error rates and the power of omega (index of answer copying developed by J. Wollack, 1997) when item and trait (theta) parameters were unknown and estimated from datasets of 100 and 500 examinees. Type I error was unaffected by estimating item parameters, with power slightly lower for the smaller sample. (SLD)

  11. Oral cancer, fever of unknown origin, and listeriosis.

    PubMed

    Morritt, A N; Mclean, N R; Snow, M H

    2002-10-01

    Listeriosis is a rare cause of fever of unknown origin in patients with oral cancer. We report two patients who, because of pain and discomfort, ate large quantities of soft cheeses; this caused listeriosis and fever. Both cases responded to high doses of amoxycillin. PMID:12379195

  12. Neutrino mass and mixing with discrete symmetry.

    PubMed

    King, Stephen F; Luhn, Christoph

    2013-05-01

    This is a review paper about neutrino mass and mixing and flavour model building strategies based on discrete family symmetry. After a pedagogical introduction and overview of the whole of neutrino physics, we focus on the PMNS mixing matrix and the latest global fits following the Daya Bay and RENO experiments which measure the reactor angle. We then describe the simple bimaximal, tri-bimaximal and golden ratio patterns of lepton mixing and the deviations required for a non-zero reactor angle, with solar or atmospheric mixing sum rules resulting from charged lepton corrections or residual trimaximal mixing. The different types of see-saw mechanism are then reviewed as well as the sequential dominance mechanism. We then give a mini-review of finite group theory, which may be used as a discrete family symmetry broken by flavons either completely, or with different subgroups preserved in the neutrino and charged lepton sectors. These two approaches are then reviewed in detail in separate chapters including mechanisms for flavon vacuum alignment and different model building strategies that have been proposed to generate the reactor angle. We then briefly review grand unified theories (GUTs) and how they may be combined with discrete family symmetry to describe all quark and lepton masses and mixing. Finally, we discuss three model examples which combine an SU(5) GUT with the discrete family symmetries A₄, S₄ and Δ(96). PMID:23645075

  13. Neutrino mass and mixing with discrete symmetry

    NASA Astrophysics Data System (ADS)

    King, Stephen F.; Luhn, Christoph

    2013-05-01

    This is a review paper about neutrino mass and mixing and flavour model building strategies based on discrete family symmetry. After a pedagogical introduction and overview of the whole of neutrino physics, we focus on the PMNS mixing matrix and the latest global fits following the Daya Bay and RENO experiments which measure the reactor angle. We then describe the simple bimaximal, tri-bimaximal and golden ratio patterns of lepton mixing and the deviations required for a non-zero reactor angle, with solar or atmospheric mixing sum rules resulting from charged lepton corrections or residual trimaximal mixing. The different types of see-saw mechanism are then reviewed as well as the sequential dominance mechanism. We then give a mini-review of finite group theory, which may be used as a discrete family symmetry broken by flavons either completely, or with different subgroups preserved in the neutrino and charged lepton sectors. These two approaches are then reviewed in detail in separate chapters including mechanisms for flavon vacuum alignment and different model building strategies that have been proposed to generate the reactor angle. We then briefly review grand unified theories (GUTs) and how they may be combined with discrete family symmetry to describe all quark and lepton masses and mixing. Finally, we discuss three model examples which combine an SU(5) GUT with the discrete family symmetries A4, S4 and Δ(96).

  14. A QCD Sum Rules Approach to Mixing of Hadrons

    SciTech Connect

    Aliev, T. M.; Ozpineci, A.; Zamiralov, V. S.

    2010-12-28

    A method for the calculation of the hadronic mixing angles using QCD sum rules is proposed. This method is then applied to predict the mixing angle between the heavy cascade hyperons {Xi}{sub Q} and {Xi}{sub Q}{sup '} where Q = c or Q = b. It is obtained the {theta}{sub b} = 6.4 deg. {+-}1.8 deg. and {theta}{sub c} = 5.5 deg. {+-}1.8 deg.

  15. Known and unknown unknowns: the application of ensemble techniques to uncertainty estimation in satellite remote sensing data

    NASA Astrophysics Data System (ADS)

    Povey, A. C.; Grainger, R. G.

    2015-08-01

    This paper discusses a best-practice representation of uncertainty in satellite remote sensing data. An estimate of uncertainty is necessary to make appropriate use of the information conveyed by a measurement. Traditional error propagation quantifies the uncertainty in a measurement due to well-understood perturbations in a measurement and auxiliary data - known, quantified "unknowns". The underconstrained nature of most satellite remote sensing observations requires the use of various approximations and assumptions that produce non-linear systematic errors that are not readily assessed - known, unquantifiable "unknowns". Additional errors result from the inability to resolve all scales of variation in the measured quantity - unknown "unknowns". The latter two categories of error are dominant in underconstrained remote sensing retrievals and the difficulty of their quantification limits the utility of existing uncertainty estimates, degrading confidence in such data. This paper proposes the use of ensemble techniques to present multiple self-consistent realisations of a data set as a means of depicting unquantified uncertainties. These are generated using various systems (different algorithms or forward models) believed to be appropriate to the conditions observed. Benefiting from the experience of the climate modelling community, an ensemble provides a user with a more complete representation of the uncertainty as understood by the data producer and greater freedom to consider different realisations of the data.

  16. Drop shape visualization and contact angle measurement on curved surfaces.

    PubMed

    Guilizzoni, Manfredo

    2011-12-01

    The shape and contact angles of drops on curved surfaces is experimentally investigated. Image processing, spline fitting and numerical integration are used to extract the drop contour in a number of cross-sections. The three-dimensional surfaces which describe the surface-air and drop-air interfaces can be visualized and a simple procedure to determine the equilibrium contact angle starting from measurements on curved surfaces is proposed. Contact angles on flat surfaces serve as a reference term and a procedure to measure them is proposed. Such procedure is not as accurate as the axisymmetric drop shape analysis algorithms, but it has the advantage of requiring only a side view of the drop-surface couple and no further information. It can therefore be used also for fluids with unknown surface tension and there is no need to measure the drop volume. Examples of application of the proposed techniques for distilled water drops on gemstones confirm that they can be useful for drop shape analysis and contact angle measurement on three-dimensional sculptured surfaces. PMID:21889152

  17. The impact of radar incidence angle on soil moisture retrieval skill

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The impact of measurement incidence angle on the accuracy of radar-based surface soil moisture retrievals is largely unknown due to discrepancies in theoretical backscatter models as well as limitations in the availability of sufficiently-extensive ground-based soil moisture observations for validat...

  18. Inferring the impact of radar incidence angle on soil moisture retrieval skill using data assimilation

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The impact of measurement incidence angle (') on the accuracy of radar-based surface soil moisture (') retrievals is largely unknown due to discrepancies in theoretical backscatter models as well as limitations in the availability of sufficiently extensive ground-based ' observations for validation....

  19. Molecular toolbox for the identification of unknown genetically modified organisms.

    PubMed

    Ruttink, Tom; Demeyer, Rolinde; Van Gulck, Elke; Van Droogenbroeck, Bart; Querci, Maddalena; Taverniers, Isabel; De Loose, Marc

    2010-03-01

    Competent laboratories monitor genetically modified organisms (GMOs) and products derived thereof in the food and feed chain in the framework of labeling and traceability legislation. In addition, screening is performed to detect the unauthorized presence of GMOs including asynchronously authorized GMOs or GMOs that are not officially registered for commercialization (unknown GMOs). Currently, unauthorized or unknown events are detected by screening blind samples for commonly used transgenic elements, such as p35S or t-nos. If (1) positive detection of such screening elements shows the presence of transgenic material and (2) all known GMOs are tested by event-specific methods but are not detected, then the presence of an unknown GMO is inferred. However, such evidence is indirect because it is based on negative observations and inconclusive because the procedure does not identify the causative event per se. In addition, detection of unknown events is hampered in products that also contain known authorized events. Here, we outline alternative approaches for analytical detection and GMO identification and develop new methods to complement the existing routine screening procedure. We developed a fluorescent anchor-polymerase chain reaction (PCR) method for the identification of the sequences flanking the p35S and t-nos screening elements. Thus, anchor-PCR fingerprinting allows the detection of unique discriminative signals per event. In addition, we established a collection of in silico calculated fingerprints of known events to support interpretation of experimentally generated anchor-PCR GM fingerprints of blind samples. Here, we first describe the molecular characterization of a novel GMO, which expresses recombinant human intrinsic factor in Arabidopsis thaliana. Next, we purposefully treated the novel GMO as a blind sample to simulate how the new methods lead to the molecular identification of a novel unknown event without prior knowledge of its transgene sequence. The results demonstrate that the new methods complement routine screening procedures by providing direct conclusive evidence and may also be useful to resolve masking of unknown events by known events. PMID:19937431

  20. Quark mixing sum rules and the right unitarity triangle

    SciTech Connect

    Antusch, Stefan; Spinrath, Martin; King, Stephen F.; Malinsky, Michal

    2010-02-01

    In analogy with the recently proposed lepton mixing sum rules, we derive quark mixing sum rules for the case of hierarchical quark mass matrices with 1-3 texture zeros, in which the separate up and down-type 1-3 mixing angles are approximately zero, and V{sub ub} is generated from V{sub cb} as a result of 1-2 up-type quark mixing. Using the sum rules, we discuss the phenomenological viability of such textures, including up to four texture zeros, and show how the right-angled unitarity triangle, i.e., {alpha}{approx_equal}90 deg., can be accounted for by a remarkably simple scheme involving real mass matrices apart from a single element being purely imaginary. In the framework of grand unified theories, we show how the quark and lepton mixing sum rules may combine to yield an accurate prediction for the reactor angle.

  1. Small angle scattering and asphaltenes

    NASA Astrophysics Data System (ADS)

    Sheu, Eric Y.

    2006-09-01

    Petroleum is a mixture of organic material consisting of a series of molecules with increasing molecular weight but with decreasing carbon to hydrogen ratios. This monotonic trend leads to distinctive properties of each class, cut by solvents. Asphaltenes are a class soluble in toluene but not in heptane. The importance of asphaltenes lies in their relevance to petroleum operations. Many properties of petroleum liquids are due to the interplay between asphaltenes and other co-existing components. These complex interactions impact on petroleum phases, and thus the operations. So-called petroleomics is a scheme to link the molecular structures of the most relevant components in the petroleum liquid to its overall properties, similar to the proteomics widely accepted in biological sciences. However, though the asphaltene molecular structure and compositions are relevant to the macroscopic properties of petroleum liquids, their aggregates on the colloidal length scale could be the most relevant elementary unit that dictates the properties of the petroleum mixtures. In this regard, it is legitimate to use small angle x-ray scattering (SAXS) and small angle neutron scattering (SANS) techniques to bridge the molecular structures of asphaltenes and the operational parameters that are commonly applied in the field. In this review, the linkages between asphaltene molecules and their aggregates and the asphaltene aggregates and the macroscopic properties are described. Applications of small angle x-ray and neutron scattering for characterizing asphaltene aggregates and asphaltene emulsions are also discussed.

  2. Adjustable-angle pipe fitting

    SciTech Connect

    Kronberg, J.W.

    1991-12-31

    This invention pertains to a pipe fitting for joining two pipes at a desired, preselected angle and comprises a curved section of pipe with a generally circular cross-section. One end of the curved pipe is preferably furnished with a bell fitting. The other end is adapted to be inserted into the bell of another pipe fitting. The surface of the pipe is marked with circumferential lines spaced at several-degree intervals, the lines corresponding to the angle of the bend which will result if the pipe is cut along that line. The outer diameter of the pipe is closely controlled to be the same throughout its length as the outer diameter of a straight pipe, so the cut end can be inserted into the bell of another fitting without further treatment, and the radius of curvature of the pipe is larger than a standard street elbow, preferably three to ten times the diameter of the pipe. Thus, a cut approximately perpendicular to the axial centerline can be made at any point along the length of the pipe to form an elbow of any desired angle.

  3. OPENING ANGLES OF COLLAPSAR JETS

    SciTech Connect

    Mizuta, Akira; Ioka, Kunihito

    2013-11-10

    We investigate the jet propagation and breakout from the stellar progenitor for gamma-ray burst (GRB) collapsars by performing two-dimensional relativistic hydrodynamic simulations and analytical modeling. We find that the jet opening angle is given by θ{sub j} ∼ 1/5Γ{sub 0} and infer the initial Lorentz factor of the jet at the central engine, Γ{sub 0}, is a few for existing observations of θ{sub j}. The jet keeps the Lorentz factor low inside the star by converging cylindrically via collimation shocks under the cocoon pressure and accelerates at jet breakout before the free expansion to a hollow-cone structure. In this new picture, the GRB duration is determined by the sound crossing time of the cocoon, after which the opening angle widens, reducing the apparent luminosity. Some bursts violating the maximum opening angle θ{sub j,{sub max}} ∼ 1/5 ∼ 12° imply the existence of a baryon-rich sheath or a long-acting jet. We can explain the slopes in both Amati and Yonetoku spectral relations using an off-centered photosphere model, if we make only one assumption that the total jet luminosity is proportional to the initial Lorentz factor of the jet. We also numerically calibrate the pre-breakout model (Bromberg et al.) for later use.

  4. Dilution jet mixing program, phase 3

    NASA Technical Reports Server (NTRS)

    Srinivasan, R.; Coleman, E.; Myers, G.; White, C.

    1985-01-01

    The main objectives for the NASA Jet Mixing Phase 3 program were: extension of the data base on the mixing of single sided rows of jets in a confined cross flow to discrete slots, including streamlined, bluff, and angled injections; quantification of the effects of geometrical and flow parameters on penetration and mixing of multiple rows of jets into a confined flow; investigation of in-line, staggered, and dissimilar hole configurations; and development of empirical correlations for predicting temperature distributions for discrete slots and multiple rows of dilution holes.

  5. Dermatomyositis Associated with Cancer of Unknown Primary Site

    PubMed Central

    Kim, Hyung Il; Chung, Sung Hoon; Hwang, Jun Eul; Kim, Sang Ho; Ahn, Jae Sook; Yang, Duk Hwan; Kim, Yoe Kyeoung; Yun, Sook Jung; Cho, Sang Hee; Lee, JeJung; Kim, Hyeoung Joon

    2007-01-01

    Dermatomyositis (DM) is an uncommon inflammatory myopathy with characteristic rash accompanying, or more often preceding, muscle weakness. There is a well-recognized association between DM and several cancers, such as ovarian cancer, breast cancer, melanoma, colon cancer, and non-Hodgkin lymphoma. We report the first case of cancer of unknown primary site associated with DM. A 62-yr-old woman presented to us with both shoulder painful swelling and facial edema. She was diagnosed previously as cancer of unknown primary site, histologically confirmed with squamous cell carcinoma in a pelvic mass. For the following days, she complained of erythematous face followed by progressive weakness of the proximal muscles of upper and lower limbs. The laboratory tests showed an increased muscle enzyme and acute phase reactants. The electromyogram showed the typical findings of DM. After the treatment with high dose steroid and methotrexate, the proximal motor weakness improved, and she received palliative radiation therapy. PMID:17923750

  6. Anal Cancer debuting as Cancer of Unknown Primary

    PubMed Central

    Sveistrup, Joen; Loft, Annika; Engelholm, Svend Aage

    2011-01-01

    Anal cancer usually presents with a visible or palpable tumour. In this case we describe a 54-year old man diagnosed with Cancer of Unknown Primary (CUP) with a single inguinal node as the only finding. Thorough examination failed to identify any primary tumour. The patient was treated with lymph node dissection and not until nearly two years after initial diagnosis, was the primary tumour found, and the patient was diagnosed with anal cancer. The patient was treated with chemoradiotherapy and 45 months after initial diagnosis there is still no sign of relapse. This case illustrates, that anal cancer can metastasise before the primary tumour is detectable. Furthermore, it demonstrates the necessity of thorough clinical follow-up after treatment of CUP since the primary tumour was found later. Finally this is a case of a long-term survivor following treatment for metastatic inguinal lymph nodes from an initially unknown primary cancer. PMID:21769317

  7. NASA WHY FILES: The Case of the Unknown Stink

    NASA Technical Reports Server (NTRS)

    2000-01-01

    In this program, students are invited to actively join the tree house detectives as they investigate the 'Case of the Unknown Stink.' The tree house detectives accept the challenge of trying to find the source of an unpleasant odor that is invading the surrounding neighborhoods. To determine the source of the stink, our detectives learn about the sense of smell: what it is, how people and animals smell, and how wind speed and direction influence the movement of odor. They also learn about how NASA's Atmospheric Science research can help solve the case. While investigating the case, the tree house detectives learn that the source of the 'unknown stink' is 'right under their very noses.'

  8. An ``Unknown'' Magnetic Moment Measured Five Independent Ways

    NASA Astrophysics Data System (ADS)

    Reichert, Jonathan F.

    2007-03-01

    In an introductory, or even advanced student laboratory, it is difficult to find an experiment where the ``unknown'' or the physical constant can be measured in multiple ways. This talk will describe five independent methods students can use to measure the magnetic moment of a NdFeB disc imbedded in a 6.1 cm diameter snooker ball. Mechanics, as well as E&M concepts are necessary to analyze these experiments. Expressing results in the proper units turns out to be an additional challenge for most students. Each measurement has its own unique systematic as well as precision uncertainties. I believe that no other undergraduate experiment uses such a wide range of physical phenomena and complementary measurements to zero-in on a single unknown.

  9. Child deaths of unknown cause: review of 7 years' experience.

    PubMed

    Bowen, Kathryn A; Marshall, William N

    2004-01-01

    Using data from the Pima County (Arizona) Child Fatality Review Team, we sought to describe the nature of unknown cause pediatric deaths. Of 1,150 total deaths (1995-2001), 22 were unknown cause and 3 had only a mode of death on the death certificate. There were 15 infants <6 months, 4 children 1-4 years, 2 children 5-9 years, 1 preteen (10-14 years), and 3 aged 15-17 years. Four patterns were seen: those resembling SIDS but with confounding history, autopsy, or scene investigation; sleeping toddlers with respiratory symptoms; children with underlying conditions not expected to cause death; and deaths without complete investigation. PMID:15583775

  10. Towards high-speed autonomous navigation of unknown environments

    NASA Astrophysics Data System (ADS)

    Richter, Charles; Roy, Nicholas

    2015-05-01

    In this paper, we summarize recent research enabling high-speed navigation in unknown environments for dynamic robots that perceive the world through onboard sensors. Many existing solutions to this problem guarantee safety by making the conservative assumption that any unknown portion of the map may contain an obstacle, and therefore constrain planned motions to lie entirely within known free space. In this work, we observe that safety constraints may significantly limit performance and that faster navigation is possible if the planner reasons about collision with unobserved obstacles probabilistically. Our overall approach is to use machine learning to approximate the expected costs of collision using the current state of the map and the planned trajectory. Our contribution is to demonstrate fast but safe planning using a learned function to predict future collision probabilities.

  11. Effects of yaw on low angle injection into a supersonic flow

    NASA Technical Reports Server (NTRS)

    Thomas, R. H.; Schetz, J. A.; Fuller, E. J.

    1991-01-01

    This paper presents the results of a study of transverse gas injection into supersonic/hypersonic streams with low downstream transverse angles in addition to yaw angles varying from zero to approximately 30 deg. The primary data are concentration measurements, with nanoshadowgraphs and oil flow visualization pictures also included. Two sets of experiments were performed. The first set studied the effects of yaw angle, specifically beta = 15 and 28 deg, on a helium injector with a 30-deg transverse angle in a Mach 3 freestream. Axial measurement stations were x/d = 30, 50, and 100. It was found that, as beta was increased, the maximum concentration mixing rate did not vary, but the jet core penetration decreased more at beta = 15 deg than at beta = 28 deg. A shearing effect between the portion of the jet in the boundary layer and the portion in the freestream increased the area of a typical constant concentration contour. The second set of experiments, conducted at NASA Langley, studied the effect of yawed injection at a transverse angle of 15 deg in a Mach 6 flow. Axial stations of x/d = 20, 40, 60, and 80 were used. A yaw angle of beta = 15 deg was found to decrease both the jet core mixing rate and penetration. The primary benefit of yaw was to increase lateral spreading. For similar injection conditions, the results show less near-field mixing at Mach 6 than Mach 3, but a faster mixing rate in the far-field at Mach 6.

  12. Metastatic Meningioma Presenting as Cancer of Unknown Primary

    PubMed Central

    Gupta, Vinay; Gonsalves, Wilson I.; Robinson, Steven I.

    2013-01-01

    We describe a case of anaplastic meningioma presenting in an extracranial osseous location, initially diagnosed as cancer of unknown primary. Although anaplastic meningioma comprise 3% of all meningiomas, this subtype is more likely to be associated with metastases. The increased degree of dedifferentiation in anaplastic meningioma makes diagnosis difficult, especially if characteristic imaging findings of meningioma are not identified. Adequate tissue for diagnostic purposes and appropriate imaging studies may help in establishing a definitive diagnosis. PMID:24416493

  13. Photographic copy of photograph, photographer unknown, October 1911 (original print ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Photographic copy of photograph, photographer unknown, October 1911 (original print located at National Archives and Records Center, Denver, Colorado). "OUTLET TUNNEL PRIOR TO BACKFILLING." SHOWS CONDUIT SECTION THAT WOULD PASS THROUGH THE NOT-YET-BUILT DAM EMBANKMENT. THE CORE WALL IS VISIBLE THROUGH THE CENTER OF THE VIEW - Kachess Dam, Outlet Channel, Kachess River, 1.5 miles north of Interstate 90, Easton, Kittitas County, WA

  14. Component spectra extraction from terahertz measurements of unknown mixtures.

    PubMed

    Li, Xian; Hou, D B; Huang, P J; Cai, J H; Zhang, G X

    2015-10-20

    The aim of this work is to extract component spectra from unknown mixtures in the terahertz region. To that end, a method, hard modeling factor analysis (HMFA), was applied to resolve terahertz spectral matrices collected from the unknown mixtures. This method does not require any expertise of the user and allows the consideration of nonlinear effects such as peak variations or peak shifts. It describes the spectra using a peak-based nonlinear mathematic model and builds the component spectra automatically by recombination of the resolved peaks through correlation analysis. Meanwhile, modifications on the method were made to take the features of terahertz spectra into account and to deal with the artificial baseline problem that troubles the extraction process of some terahertz spectra. In order to validate the proposed method, simulated wideband terahertz spectra of binary and ternary systems and experimental terahertz absorption spectra of amino acids mixtures were tested. In each test, not only the number of pure components could be correctly predicted but also the identified pure spectra had a good similarity with the true spectra. Moreover, the proposed method associated the molecular motions with the component extraction, making the identification process more physically meaningful and interpretable compared to other methods. The results indicate that the HMFA method with the modifications can be a practical tool for identifying component terahertz spectra in completely unknown mixtures. This work reports the solution to this kind of problem in the terahertz region for the first time, to the best of the authors' knowledge, and represents a significant advance toward exploring physical or chemical mechanisms of unknown complex systems by terahertz spectroscopy. PMID:26560381

  15. [Identification of an exhumed unknown infant through DNA analysis].

    PubMed

    Jopp, Eilin; Püschel, Klaus; Warschke, Christian; Kaufmann, Richard; Krebs, Oliver

    2014-01-01

    The article reports on the exhumation and subsequent DNA analysis of the skeletal remains of an unknown male newborn from 1988. Molecular biological methods confirmed the maternity of a woman who was already convicted of infanticide. Since homicide could not be clearly proven and manslaughter becomes barred by the statute of limitation after 20 years, the woman cannot be held accountable for the alleged killing of her first child. PMID:25004622

  16. Prevalence and Treatment Outcome of Cervicitis of Unknown Etiology

    PubMed Central

    Taylor, Stephanie N.; Lensing, Shelly; Schwebke, Jane; Lillis, Rebecca; Mena, Leandro A.; Nelson, Anita L.; Rinaldi, Anne; Saylor, Lisa; McNeil, Linda; Lee, Jeannette Y.

    2013-01-01

    Background Mucopurulent cervicitis (MPC) is a clinical syndrome characterized by mucopurulent discharge from the cervix and other signs of inflammation. This was a phase III, multi-center study designed to evaluate the effectiveness of placebo versus empiric antibiotic treatment for clinical cure of MPC of unknown etiology at 2 months follow-up. Unfortunately, enrollment was terminated due to low accrual of women with cervicitis of unknown etiology but important prevalence and outcome data were obtained. Methods Five hundred seventy-seven women were screened for MPC. Women with MPC were randomized to the treatment or placebo arm of the study and the two arms were evaluated based upon the etiology, clinical cure rates, adverse events (AEs) and rates of pelvic inflammatory disease (PID). Results One hundred thirty-one or 23% (131/577) of screened women were found to have MPC. Eighty-seven were enrolled and randomized. After excluding women with sexually transmitted infections and other exclusions, 61% (53/87) had cervicitis of unknown etiology. The overall clinical failure rate was 30% (10/33) and the clinical cure rate was only 24% (8/33). Rates were not significantly different between the arms. There were 24 gastrointestinal (GI) AEs in the treatment arm compared to 1 AE in the placebo arm. Conclusion Over half of the cases of MPC were of unknown etiology. Clinical cure rates for the placebo and treatment arms were extremely low, with most women concluding the study with a partial response. Gastrointestinal AEs were higher in the treatment arm. PMID:23588127

  17. Detecting entanglement of unknown quantum states with random measurements

    NASA Astrophysics Data System (ADS)

    Szangolies, Jochen; Kampermann, Hermann; Bru, Dagmar

    2015-11-01

    In quantum information theory, the reliable and effective detection of entanglement is of paramount importance. However, given an unknown state, assessing its entanglement is a challenging task. To attack this problem, we investigate the use of random local measurements, from which entanglement witnesses are then constructed via semidefinite programming methods. We propose a scheme of successively increasing the number of measurements until the presence of entanglement can be unambiguously concluded, and investigate its performance in various examples.

  18. 13. Photocopy of photograph. Photographer unknown, circa 1940. Original photograph ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    13. Photocopy of photograph. Photographer unknown, circa 1940. Original photograph can be found in Marvine Colliery folder in the archives of the Lackawanna Historical Society, Scranton, Pennsylvania. VIEW SHOWING SOUTH AND EAST FACADES OF BREAKER, WITH OVERHEAD PIPING IN FOREGROUND AND RETAIL SCALES OFFICE AT FAR RIGHT, LOOKING NORTHWEST - Marvine Colliery, Breaker No. 2, West side Boulevard Avenue, between East Parker Street & Route 380, Scranton, Lackawanna County, PA

  19. 11. Photocopy of photograph. Photographer unknown, circa 1955. Original photograph ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    11. Photocopy of photograph. Photographer unknown, circa 1955. Original photograph can be found in Marvine Colliery folder in the archives of the Lackawanna Historical Society, Scranton, Pennsylvania. VIEW SHOWING EAST AND NORTH FACADES OF BREAKER, WITH BOILER HOUSE AT FAR LEFT AND RETAIL SCALES OFFICE DIRECTLY EAST OF BREAKER, LOOKING SOUTHWEST - Marvine Colliery, Breaker No. 2, West side Boulevard Avenue, between East Parker Street & Route 380, Scranton, Lackawanna County, PA

  20. 14. Photographic copy of photograph dated ca. 1925; Photographer unknown; ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    14. Photographic copy of photograph dated ca. 1925; Photographer unknown; Original in Rath collection at Iowa State University Libraries, Department of Special Collection, Ames, Iowa; Filed under: Rath Packing Company, Public Relations, Symbol N, Box 106, File 6: THE RATH COMPLEX IN THE MID 1920; LARGE BUILDING TO LEFT OF SMOKESTACK IS HOG KILL (BUILDING 40); LOOKING NORTH FROM ACROSS CEDAR RIVER - Rath Packing Company, Sycamore Street between Elm & Eighteenth Streets, Waterloo, Black Hawk County, IA

  1. Photocopy of photograph. Photographer unknown. Typical suggestion award photograph from ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Photocopy of photograph. Photographer unknown. Typical suggestion award photograph from the World War II period. Useful suggestions were awarded a $ 50 bond and usually a photo in the shipyard newspaper, the beacon. This photo shows an improved bilge block template layout table left to right: Stuart S. Sanders, Rosalie Moschella, Eddie Ormond, Lt. CDR. J.M. Ballinger, and A.A. Goldman. - Naval Base Philadelphia-Philadelphia Naval Shipyard, League Island, Philadelphia, Philadelphia County, PA

  2. Unknown Word Processing Method for the Common Sense Judgement System

    NASA Astrophysics Data System (ADS)

    Tsuchiya, Seiji; Kojima, Kazuhide; Watabe, Hirokazu; Kawaoka, Tsukasa

    When we humans receive uncertain information, we interpret it properly, so we can expand the conversation, and take the proper actions. This is possible because we have “common sense” concerning the basic word concept, which is built up from long time experience storing knowledge of our language. Of the common sense we use in our every day lives we think that there are; common sense concerning quantity such as size, weight, speed, time, or place; common sense concerning sense or feeling such as hot, beautiful, or loud; and moreover common sense concerning emotion such as happy or sad. In order to make computers closer to human beings, we think that the construction of a “Common Sense Judgment System” which deals with these kinds of common sense is necessary. When aiming to realize this “Common Sense Judgment System” and trying to make a computer have the same common sense knowledge and judgment ability as human beings, a very important factor is the handling of unknown words. Judgment concerning words which were given to the computer as knowledge before hand, it can refer to that knowledge, and the process will have no problem at all. But when an unknown word, which is not registered as knowledge, is inputted, how to process that word is a very difficult problem. In this paper, by using a concept base, which is made from several electric dictionaries; the degree of association, which is done based on the concept base; neural network, putting the closeness of meaning in consideration, we propose a method of unknown word processing, which connects an inputted unknown word to a representing word that is registered in the judgment knowledge base, and we will verify its effectiveness by experiment applied to the emotional judgment subsystem.

  3. Photographic copy of photograph, photographer unknown, 26 April 1912 (original ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Photographic copy of photograph, photographer unknown, 26 April 1912 (original print located at U.S. Bureau of Reclamation Upper Columbia Area Office, Yakima, Washington). "TRESTLE TO BE USED IN HANDLING EMBANKMENT MATERIAL, ALSO SHOWS THE HEIGHT OF FILL IN CUT-OFF TRENCH, THE CUT-OFF TRENCH AND CORE-WALL TRENCH IN HILL AT EAST END OF DAM" - Kachess Dam, Kachess River, 1.5 miles north of Interstate 90, Easton, Kittitas County, WA

  4. Photocopy of photograph. Photographer unknown. Poster from the World War ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Photocopy of photograph. Photographer unknown. Poster from the World War II period. During drives to encourage purchase of war bonds, posters featuring female shipyard workers were widely distributed purchasers were allowed one vote for each bond bought. Votes were cast and the woman who got the most votes was named "War Bond Girl." The contest was won by Kay McGinty, 4th row, 2nd column. - Naval Base Philadelphia-Philadelphia Naval Shipyard, League Island, Philadelphia, Philadelphia County, PA

  5. 65. Photographer unknown March 1931 DEL NORTE COUNTY, SECTION B, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    65. Photographer unknown March 1931 DEL NORTE COUNTY, SECTION B, HIGHWAY 1, 1-DN-1-B #66A, STA. 166.0+00 WIDENED ROADBED BEFORE COVERING LOG CRIB, 3-31. BACK READS: WIDENING ROAD BED WITH LOGS, APPROX 30 SQUARE & 60 LONG ON DN-1 SEC B STA 156+. Stamped office copy, - Redwood National & State Parks Roads, California coast from Crescent City to Trinidad, Crescent City, Del Norte County, CA

  6. Interferometric distillation and determination of unknown two-qubit entanglement

    SciTech Connect

    Lee, S.-S. B.; Sim, H.-S.

    2009-05-15

    We propose a scheme for both distilling and quantifying entanglement, applicable to individual copies of an arbitrary unknown two-qubit state. It is realized in a usual two-qubit interferometry with local filtering. Proper filtering operation for the maximal distillation of the state is achieved by erasing single-qubit interference, and then the concurrence of the state is determined directly from the visibilities of two-qubit interference. We compare the scheme with full state tomography.

  7. Spread-Spectrum Carrier Estimation With Unknown Doppler Shift

    NASA Technical Reports Server (NTRS)

    DeLeon, Phillip L.; Scaife, Bradley J.

    1998-01-01

    We present a method for the frequency estimation of a BPSK modulated, spread-spectrum carrier with unknown Doppler shift. The approach relies on a classic periodogram in conjunction with a spectral matched filter. Simulation results indicate accurate carrier estimation with processing gains near 40. A DSP-based prototype has been implemented for real-time carrier estimation for use in New Mexico State University's proposal for NASA's Demand Assignment Multiple Access service.

  8. 11. Photographic copy of photograph, photographer unknown, 2 July 1938 ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    11. Photographic copy of photograph, photographer unknown, 2 July 1938 (original print located at U.S. Bureau of Reclamation Upper Columbia Area Office, Yakima, Washington). "Inspecting concrete on upstream face of Keechelus Dam spillway. Joseph Jacobs, consulting engineer; M.B. Lemon, Gatetender; Paul Taylor, assistant engineer; and C.H. Paul, consulting engineer." - Keechelus Dam, Spillway, Yakim River, 10 miles northwest of Easton, Easton, Kittitas County, WA

  9. 9. Photographic copy of photo dated 1940; Photographer unknown; Original ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    9. Photographic copy of photo dated 1940; Photographer unknown; Original in Rath collection at Iowa State University Libraries, Department of Special Collections, Ames, Iowa; Filed under: Rath Packing Company, Public Relations, Symbol N, Box 106, File 6; SOUTH END OF COMPLEX, LATE 1940; FROM ACROSS CEDAR RIVER; BUILDING 148 ADDITION UNDER CONSTRUCTION (CENTER) - Rath Packing Company, Grease Interceptor Building, Sycamore Street between Elm & Eighteenth Streets, Waterloo, Black Hawk County, IA

  10. 10. Photographic copy of photo dated 1940; Photographer unknown; Original ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    10. Photographic copy of photo dated 1940; Photographer unknown; Original in Rath collection at Iowa State University Libraries, Department of Special Collections, Ames, Iowa; Filed under: Rath Packing Company, Public Relations, Symbol N, Box 106, File 6; SOUTH END OF RATH COMPLEX IN SPRING OF 1941, AFTER COMPLETION OF THREE-STORY ADDITION TO GREASE INTERCEPTOR - Rath Packing Company, Grease Interceptor Building, Sycamore Street between Elm & Eighteenth Streets, Waterloo, Black Hawk County, IA

  11. 16. Photographic copy of photograph dated ca. 1935; Photographer unknown; ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    16. Photographic copy of photograph dated ca. 1935; Photographer unknown; Original in Rath collection at Iowa State University Libraries, Department of Special Collection, Ames, Iowa; Filed under: Rath Packing Company, Public Relations, Symbol N, Box 106, File 6: COLD STORAGE AND WAREHOUSE BUILDINGS ON WEST END OF RATH COMPLEX; BUILDING WITH ELEVATOR TOWER NEAR CENTER OF PHOTO IS BUILDING 9: LOOKING SOUTHEAST - Rath Packing Company, Sycamore Street between Elm & Eighteenth Streets, Waterloo, Black Hawk County, IA

  12. 2. Photographic copy of undated photograph; Photographer unknown; Original in ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    2. Photographic copy of undated photograph; Photographer unknown; Original in Rath collection at Iowa State University Libraries, Department of Special Collections, Ames, Iowa; Filed under: Rath Packing Company, Public Relations, Symbol N, Box 106, File 6; HOG KILLING OPERATIONS INSIDE BUILDING 40; WORKER AT RIGHT REAR IS USING BLOWTORCH TO REMOVE BRISTLES FROM CARCASSES - Rath Packing Company, Hog Killing & By-Products Building, Sycamore Street between Elm & Eighteenth Streets, Waterloo, Black Hawk County, IA

  13. 13. Photographic copy of photograph dated ca. 1901; Photographer unknown; ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    13. Photographic copy of photograph dated ca. 1901; Photographer unknown; Original in collection of Waterloo Courier, Waterloo, Iowa; THE RATH COMPLEX AS IT APPEARED AT THE END OF THE COMPANY'S FIRST DECADE: ENGINE ROOM AT LEFT, KILLING BUILDING AT CENTER, WAREHOUSE BUILDINGS AT RIGHT; A PORTION OF THE ICEHOUSE IS VISIBLE AT EXTREME RIGHT; LOOKING SOUTH - Rath Packing Company, Sycamore Street between Elm & Eighteenth Streets, Waterloo, Black Hawk County, IA

  14. Analysis of multinomial models with unknown index using data augmentation

    USGS Publications Warehouse

    Royle, J. Andrew; Dorazio, R.M.; Link, W.A.

    2007-01-01

    Multinomial models with unknown index ('sample size') arise in many practical settings. In practice, Bayesian analysis of such models has proved difficult because the dimension of the parameter space is not fixed, being in some cases a function of the unknown index. We describe a data augmentation approach to the analysis of this class of models that provides for a generic and efficient Bayesian implementation. Under this approach, the data are augmented with all-zero detection histories. The resulting augmented dataset is modeled as a zero-inflated version of the complete-data model where an estimable zero-inflation parameter takes the place of the unknown multinomial index. Interestingly, data augmentation can be justified as being equivalent to imposing a discrete uniform prior on the multinomial index. We provide three examples involving estimating the size of an animal population, estimating the number of diabetes cases in a population using the Rasch model, and the motivating example of estimating the number of species in an animal community with latent probabilities of species occurrence and detection.

  15. Microarray-based method for detection of unknown genetic modifications

    PubMed Central

    Tengs, Torstein; Kristoffersen, Anja B; Berdal, Knut G; Thorstensen, Tage; Butenko, Melinka A; Nesvold, Håvard; Holst-Jensen, Arne

    2007-01-01

    Background Due to the increased use of genetic modifications in crop improvement, there is a need to develop effective methods for the detection of both known and unknown transgene constructs in plants. We have developed a strategy for detection and characterization of unknown genetic modifications and we present a proof of concept for this method using Arabidopsis thaliana and Oryza sativa (rice). The approach relies on direct hybridization of total genomic DNA to high density microarrays designed to have probes tiled throughout a set of reference sequences. Results We show that by using arrays with 25 basepair probes covering both strands of a set of 235 vectors (2 million basepairs) we can detect transgene sequences in transformed lines of A. thaliana and rice without prior knowledge about the transformation vectors or the T-DNA constructs used to generate the studied plants. Conclusion The approach should allow the user to detect the presence of transgene sequences and get sufficient information for further characterization of unknown genetic constructs in plants. The only requirements are access to a small amount of pure transgene plant material, that the genetic construct in question is above a certain size (here ≥ 140 basepairs) and that parts of the construct shows some degree of sequence similarity with published genetic elements. PMID:18088429

  16. Characterizing unknown systematics in large scale structure surveys

    SciTech Connect

    Agarwal, Nishant; Ho, Shirley; Myers, Adam D.; Seo, Hee-Jong; Ross, Ashley J.; Bahcall, Neta; Brinkmann, Jonathan; Eisenstein, Daniel J.; Muna, Demitri; Palanque-Delabrouille, Nathalie; Yèche, Christophe; Petitjean, Patrick; Schneider, Donald P.; Streblyanska, Alina; Weaver, Benjamin A.

    2014-04-01

    Photometric large scale structure (LSS) surveys probe the largest volumes in the Universe, but are inevitably limited by systematic uncertainties. Imperfect photometric calibration leads to biases in our measurements of the density fields of LSS tracers such as galaxies and quasars, and as a result in cosmological parameter estimation. Earlier studies have proposed using cross-correlations between different redshift slices or cross-correlations between different surveys to reduce the effects of such systematics. In this paper we develop a method to characterize unknown systematics. We demonstrate that while we do not have sufficient information to correct for unknown systematics in the data, we can obtain an estimate of their magnitude. We define a parameter to estimate contamination from unknown systematics using cross-correlations between different redshift slices and propose discarding bins in the angular power spectrum that lie outside a certain contamination tolerance level. We show that this method improves estimates of the bias using simulated data and further apply it to photometric luminous red galaxies in the Sloan Digital Sky Survey as a case study.

  17. Quantum key distribution with an unknown and untrusted source

    NASA Astrophysics Data System (ADS)

    Zhao, Yi; Qi, Bing; Lo, Hoi-Kwong

    2009-03-01

    The security of a standard bi-directional ``plug & play'' quantum key distribution (QKD) system has been an open question for a long time. This is mainly because its source is equivalently controlled by an eavesdropper, which means the source is unknown and untrusted. Qualitative discussion on this subject has been made previously. In this paper, we present the first quantitative security analysis on a general class of QKD protocols whose sources are unknown and untrusted. The securities of standard BB84 protocol, weak+vacuum decoy state protocol, and one-decoy decoy state protocol, with unknown and untrusted sources are rigorously proved. We derive rigorous lower bounds to the secure key generation rates of the above three protocols. Our numerical simulation results show that QKD with an untrusted source gives a key generation rate that is close to that with a trusted source. Our work is published in [1]. [4pt] [1] Y. Zhao, B. Qi, and H.-K. Lo, Phys. Rev. A, 77:052327 (2008).

  18. [Determination of contact angle of pharmaceutical excipients and regulating effect of surfactants on their wettability].

    PubMed

    Hua, Dong-dong; Li, He-ran; Yang, Bai-xue; Song, Li-na; Liu, Tiao-tiao; Cong, Yu-tang; Li, San-ming

    2015-10-01

    To study the effects of surfactants on wettability of excipients, the contact angles of six types of surfactants on the surface of two common excipients and mixture of three surfactants with excipients were measured using hypsometry method. The results demonstrated that contact angle of water on the surface of excipients was associated with hydrophilcity of excipients. Contact angle was lowered with increase in hydrophilic groups of excipient molecules. The sequence of contact angle from small to large was starch < sodium benzoate < polyvinylpyrrolidone < sodium carboxymethylcellulose < sodium alginate < chitosan < hydroxypropyl methyl cellulose mixed in excipients significantly reduced the contact angle of excipients, and their abilities to lower contact angle varied. The results of the present study offer a guideline in the formulation design of tablets. PMID:26837184

  19. Neutrino masses from modified bimaximal mixing

    NASA Astrophysics Data System (ADS)

    Damanik, Asan

    2015-09-01

    The bimaximal (BM) neutrino mixing matrix was formulated in order to accommodate the data of the experimental results which indicate that both solar and atmospheric neutrino oscillation in vacuum are near maximal. But, after the T2K and Daya Bay Collaborations reported that the mixing angle θ13 is nonzero and relatively large, many authors have modified the neutrino mixing matrix in order to accommodate experimental data. We modified the BM mixing matrix by introducing a simple perturbation matrix into BM mixing matrix. The modified BM mixing matrix can proceed the mixing angles which are compatible with the global fit analysis data and by imposing the μ-τ symmetry into mass matrix from modified BM, we have the neutrino mass in normal hierarchy (NH): m1 < m2 < m3. Using the neutrino masses that obtained from neutrino mass matrix in the scheme of modified BM and imposing the constraint exact μ-τ symmetry into neutrino mass matrix, we cannot have compatible squared-mass differences for both Δm212 and Δm322 as dictated by experimental results. In order to proceed the neutrino masses that can predict correctly the squared-mass difference, we introduce a small parameter λ into neutrino mass matrix. The obtained neutrino masses are in agreement with the squared-mass difference as dictated by experimental results. The predicted neutrino effective mass: = 0.166eV in this paper can be tested in the future neutrinoless double beta decay.

  20. Global 3ν oscillation analysis: Status of unknown parameters and future systematic challenges for ORCA and PINGU

    NASA Astrophysics Data System (ADS)

    Capozzi, Francesco; Lisi, Eligio; Marrone, Antonio

    2016-04-01

    Within the standard 3ν oscillation framework, we illustrate the status of currently unknown oscillation parameters: the θ23 octant, the mass hierarchy (normal or inverted), and the possible CP-violating phase δ, as derived by a (preliminary) global analysis of oscillation data available in 2015. We then discuss some challenges that will be faced by future, high-statistics analyses of spectral data, starting with one-dimensional energy spectra in reactor experiments, and concluding with two-dimensional energy-angle spectra in large-volume atmospheric experiments. It is shown that systematic uncertainties in the spectral shapes can noticeably affect the prospective sensitivities to unknown oscillation parameters, in particular to the mass hierarchy.

  1. Flavor mixing democracy and minimal CP violation

    NASA Astrophysics Data System (ADS)

    Gerard, Jean-Marc; Xing, Zhi-zhong

    2012-06-01

    We point out that there is a unique parametrization of quark flavor mixing in which every angle is close to the Cabibbo angle θC≃13° with the CP-violating phase ϕq around 1°, implying that they might all be related to the strong hierarchy among quark masses. Applying the same parametrization to lepton flavor mixing, we find that all three mixing angles are comparably large (around π/4) and the Dirac CP-violating phase ϕl is also minimal as compared with its values in the other eight possible parametrizations. In this spirit, we propose a simple neutrino mixing ansatz which is equivalent to the tri-bimaximal flavor mixing pattern in the ϕl→0 limit and predicts sin θ13=1/√{2}sin(ϕl/2) for reactor antineutrino oscillations. Hence the Jarlskog invariant of leptonic CP violation Jl=(sin ϕl)/12 can reach a few percent if θ13 lies in the range 7°⩽θ13⩽10°.

  2. Unknown unknowns in biomedical research: does an inability to deal with ambiguity contribute to issues of irreproducibility?

    PubMed

    Mullane, Kevin; Williams, Michael

    2015-09-15

    The credibility and consequent sustainability of the biomedical research "ecosystem" is in jeopardy, in part due to an inability to reproduce data from the peer-reviewed literature. Despite obvious and relatively inexpensive solutions to improve reproducibility-ensuring that experimental reagents, specifically cancer cell lines and antibodies, are authenticated/validated before use and that best practices in statistical usage are incorporated into the design, analysis, and reporting of experiments-these are routinely ignored, a reflection of hubris and a comfort with the status quo on the part of many investigators. New guidelines for the peer review of publications and grant applications introduced in the past year, while well-intended, lack the necessary consequences, e.g., denial of funding, that would result in sustained improvements when scientific rigor is lacking and/or transparency is, at best, opaque. An additional factor contributing to irreproducibility is a reductionist mindset that prioritizes certainty in research outcomes over the ambiguity intrinsic to biological systems that is often reflected in "unknown unknowns". This has resulted in a tendency towards codifying "rules" that can provide "yes-no" outcomes that represent a poor substitute for the intellectual challenge and skepticism that leads to an awareness and consideration of "unknown unknowns". When acknowledged as potential causes of unexpected experimental outcomes, these can often transition into the "knowns" that facilitate positive, disruptive innovation in biomedical research like the human microbiome. Changes in investigator mindset, both in terms of validating reagents and embracing ambiguity, are necessary to aid in reducing issues with reproducibility. PMID:26239804

  3. Ocular Biometry in Angle Closure

    PubMed Central

    Razeghinejad, Mohammad Reza; Banifatemi, Mohammad

    2013-01-01

    Purpose To compare ocular biometric parameters in primary angle closure suspects (PACS), primary angle closure glaucoma (PACG) and acute primary angle closure (APAC). Methods This cross-sectional study was performed on 113 patients including 33 cases of PACS, 45 patients with PACG and 35 subjects with APAC. Central corneal thickness (CCT), axial length (AL), anterior chamber depth (ACD) and lens thickness (LT) were measured with an ultrasonic biometer. Lens-axial length factor (LAF), relative lens position, corrected ACD (CACD) and corrected lens position were calculated. The parameters were measured bilaterally but only data from the right eyes were compared. In the APAC group, biometric parameters were also compared between affected and unaffected fellow eyes. Logistic regression analysis was performed to identify risk factors. Results No statistically significant difference was observed in biometric parameters between PACS and PACG eyes, or between affected and fellow eyes in the APAC group (P>0.05 for all comparisons). However, eyes with APAC had thicker cornea (P=0.001), thicker lens (P<0.0001), shallower ACD (P=0.009), shallower CACD (P=0.003) and larger LAF (P<0.0001). Based on ROC curve analysis, lower ACD, and larger LT, LAF and CCT values were associated with APAC. In the APAC group, LAF (P<0.0001) and CCT (P=0.001) were significant risk factors. Conclusion This study revealed no significant difference in biometric characteristics in eyes with PACS and PACG. However, larger LAF and CCT were predictive of APAC. PMID:23825708

  4. A direct approach to finding unknown boundary conditions in steady heat conduction

    NASA Technical Reports Server (NTRS)

    Martin, Thomas J.; Dulikravich, George S.

    1993-01-01

    The capability of the boundary element method (BEM) in determining thermal boundary conditions on surfaces of a conducting solid where such quantities are unknown was demonstrated. The method uses a non-iterative direct approach in solving what is usually called the inverse heat conduction problem (IHCP). Given any over-specified thermal boundary conditions such as a combination of temperature and heat flux on a surface where such data is readily available, the algorithm computes the temperature field within the object and any unknown thermal boundary conditions on surfaces where thermal boundary values are unavailable. A two-dimensional, steady-state BEM program was developed and was tested on several simple geometries where the analytic solution was known. Results obtained with the BEM were in excellent agreement with the analytic values. The algorithm is highly flexible in treating complex geometries, mixed thermal boundary conditions, and temperature-dependent material properties and is presently being extended to three-dimensional and unsteady heat conduction problems. The accuracy and reliability of this technique was very good but tended to deteriorate when the known surface conditions were only slightly over-specified and far from the inaccessible surface.

  5. Optimal Foraging Strategy: Angle Matters

    NASA Astrophysics Data System (ADS)

    Erdmann, Udo; Göller, Sebastian; Sokolov, Igor M.; Schimansky-Geier, Lutz

    2006-03-01

    We report a theory to describe the motion of zooplankton. In contrast to move just randomly like a classical Brownian particle, zooplankters like Daphnia or Copepods pick their turning angle from a distribution which is far from being Gaussian or equally distributed. This leads to different behavior in the motion compared to normal diffusion. The question which can be asked here is: Is there an evolutionary reason to forage for food in the aforementioned manner? The talk is planned to give an answer into that direction.

  6. Angle-resolved cathodoluminescence spectroscopy

    SciTech Connect

    Coenen, Toon; Vesseur, Ernst Jan R.; Polman, Albert

    2011-10-03

    We present a cathodoluminescence spectroscopy technique which combines deep subwavelength excitation resolution with angle-resolved detection capabilities. The cathodoluminescence emission is collected by a paraboloid mirror (effective NA = 0.96) and is projected onto a 2D CCD array. The azimuthal and polar emission pattern is directly deduced from the image. As proof of principle, we use the technique to measure the angular distribution of transition radiation from a single crystalline gold surface under 30 keV electron irradiation. We find that the experiment matches very well with theory, illustrating the potential of this technique for the characterization of photonic structures with deep subwavelength dimensions.

  7. Moderate positive spin Hall angle in uranium

    NASA Astrophysics Data System (ADS)

    Singh, Simranjeet; Anguera, Marta; del Barco, Enrique; Springell, Ross; Miller, Casey W.

    2015-12-01

    We report measurements of spin pumping and the inverse spin Hall effect in Ni80Fe20/uranium bilayers designed to study the efficiency of spin-charge interconversion in a super-heavy element. We employ broad-band ferromagnetic resonance on extended films to inject a spin current from the Ni80Fe20 (permalloy) into the uranium layer, which is then converted into an electric field by the inverse spin Hall effect. Surprisingly, our results suggest a spin mixing conductance of order 2 × 1019 m-2 and a positive spin Hall angle of 0.004, which are both merely comparable with those of several transition metals. These results thus support the idea that the electronic configuration may be at least as important as the atomic number in governing spin pumping across interfaces and subsequent spin Hall effects. In fact, given that both the magnitude and the sign are unexpected based on trends in d-electron systems, materials with unfilled f-electron orbitals may hold additional exploration avenues for spin physics.

  8. Moderate positive spin Hall angle in uranium

    SciTech Connect

    Singh, Simranjeet; Anguera, Marta; Barco, Enrique del E-mail: cwmsch@rit.edu; Springell, Ross; Miller, Casey W. E-mail: cwmsch@rit.edu

    2015-12-07

    We report measurements of spin pumping and the inverse spin Hall effect in Ni{sub 80}Fe{sub 20}/uranium bilayers designed to study the efficiency of spin-charge interconversion in a super-heavy element. We employ broad-band ferromagnetic resonance on extended films to inject a spin current from the Ni{sub 80}Fe{sub 20} (permalloy) into the uranium layer, which is then converted into an electric field by the inverse spin Hall effect. Surprisingly, our results suggest a spin mixing conductance of order 2 × 10{sup 19} m{sup −2} and a positive spin Hall angle of 0.004, which are both merely comparable with those of several transition metals. These results thus support the idea that the electronic configuration may be at least as important as the atomic number in governing spin pumping across interfaces and subsequent spin Hall effects. In fact, given that both the magnitude and the sign are unexpected based on trends in d-electron systems, materials with unfilled f-electron orbitals may hold additional exploration avenues for spin physics.

  9. Management of Secondary Angle Closure Glaucoma

    PubMed Central

    Parivadhini, Annadurai

    2014-01-01

    ABSTRACT Secondary angle closure glaucomas are a distinct entity from primary angle closure glaucoma (PACG). Unlike PACG, secondary angle closure glaucoma's have an identifable contributory factor/s for angle closure and obstruction of aqueous fow which is usually unrelieved by iridotomy. The treatment of each type of secondary angle closure glaucoma is varied, so identification of the primary cause aids in its effective management. How to cite this article: Annadurai P, Vijaya L. Management of Secondary Angle Closure Glaucoma. J Current Glau Prac 2014;8(1):25-32.

  10. Tribimaximal mixing, discrete family symmetries, and a conjecture connecting the quark and lepton mixing matrices

    NASA Astrophysics Data System (ADS)

    Low, Catherine I.; Volkas, Raymond R.

    2003-08-01

    Neutrino oscillation experiments (excluding the Liquid Scintillator Neutrino Detector experiment) suggest a tribimaximal form for the lepton mixing matrix. This form indicates that the mixing matrix is probably independent of the lepton masses, and suggests the action of an underlying discrete family symmetry. Using these hints, we conjecture that the contrasting forms of the quark and lepton mixing matrices may both be generated by such a discrete family symmetry. This idea is that the diagonalization matrices out of which the physical mixing matrices are composed have large mixing angles, which cancel out due to a symmetry when the CKM matrix is computed, but do not do so in the MNS case. However, in the cases where the Higgs bosons are singlets under the symmetry, and the family symmetry commutes with SU(2)L, we prove a no-go theorem: no discrete unbroken family symmetry can produce the required mixing patterns. We then suggest avenues for future research.

  11. Bipair Neutrino Mixing and Leptogenesis

    NASA Astrophysics Data System (ADS)

    Kitabayashi, Teruyuki

    2013-03-01

    We estimate the baryon-photon ratio in the Universe via the leptogenesis scenario in the framework of the minimal seesaw model with a minimally modified bipair neutrino mixing. We assume that one of the elements of the 3 × 2 Dirac mass matrix mD is exactly zero. It turns out that the lepton asymmetry as well as baryon number of the Universe definitely depends on the reactor neutrino mixing angle in the cases of (mD)11 = 0 and (mD)12 = 0. The allowed region of the Majorana CP phase is separated into three regions related to the assumption of either (mD)11 = 0, (mD)21, 31 = 0 or (mD)12 = 0.

  12. Efficiency fluctuations of small machines with unknown losses

    NASA Astrophysics Data System (ADS)

    Vroylandt, Hadrien; Bonfils, Anthony; Verley, Gatien

    2016-05-01

    The efficiency statistics of a small thermodynamic machine has been recently investigated assuming that the total dissipation is a linear combination of two currents: the input and output currents. Here, we relax this standard assumption and consider the question of the efficiency fluctuations for a machine involving three different currents, first in full generality and second for two different examples. Since the third current may not be measurable and/or may decrease the machine efficiency, our motivation is to study the effect of unknown losses in small machines.

  13. Adaptive microphone array for unknown desired speaker's transfer function.

    PubMed

    Papp, Istvan I; Saric, Zoran M; Jovicic, Slobodan T; Teslic, Nikola Dj

    2007-08-01

    The main drawback of minimum variance distortionless response (MVDR) beamformer is the cancellation of the desired speech signal and its degradation in multi-path wave propagation environment. To make the adaptive algorithm robust against room reverberation and to prevent desired signal cancellation an estimation of unknown desired speaker's transfer function was proposed. The estimation is based on the signal and the interference covariance matrices. The estimated transfer function is then applied to the MVDR beamformer. The proposed algorithm was tested on a simulated room with reverberation. The results showed better quality of the restored speech compared to some typical adaptive algorithms. PMID:17672528

  14. Maximum-revenue tariff under Bertrand duopoly with unknown costs

    NASA Astrophysics Data System (ADS)

    Ferreira, Fernanda A.; Ferreira, Flávio

    2009-09-01

    This paper considers an international trade under Bertrand model with differentiated products and with unknown production costs. The home government imposes a specific import tariff per unit of imports from the foreign firm. We prove that this tariff is decreasing in the expected production costs of the foreign firm and increasing in the production costs of the home firm. Furthermore, it is increasing in the degree of product substitutability. We also show that an increase in the tariff results in both firms increasing their prices, an increase in both expected sales and expected profits for the home firm, and a decrease in both expected sales and expected profits for the foreign firm.

  15. 7. Photographic copy of photograph, date unknown (original print in ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    7. Photographic copy of photograph, date unknown (original print in possession of James E. Zielinski Earth Tech, Huntsville, AL). Pan American World Airways, photographer. Aerial view (north to south) of missile launch area. Warhead handling building can be seen at the bottom center of the picture and the universal missile building in the middle right. In the distance can be seen the missile site control building and related structures - Stanley R. Mickelsen Safeguard Complex, Missile Launch Area, Within Exclusion Area, Nekoma, Cavalier County, ND

  16. Villitis of Unknown Etiology and Massive Chronic Intervillositis.

    PubMed

    Chan, Joanna S Y

    2013-03-01

    Villitis of unknown etiology (VUE) is a common lesion affecting from 6.6% to 33.8% of third-trimester placentas. VUE needs to be distinguished from villitis of infectious etiology, most commonly cytomegalovirus and syphilis. Clinically, this lesion is associated with intrauterine growth retardation, intrauterine fetal demise, fetal neural impairment, maternal alloimmune and autoimmune disease, and maternal hypertension. It has a tendency to recur in subsequent pregnancies. Massive chronic intervillositis (MCI), also known as chronic histiocytic intervillositis, is a rare lesion that has an unclear relationship with VUE. MCI is associated with recurrent abortions. PMID:26838706

  17. Mitochondrial Ca2+ channels: Great unknowns with important functions

    PubMed Central

    Malli, Roland; Graier, Wolfgang F.

    2014-01-01

    Mitochondria process local and global Ca2+ signals. Thereby the spatiotemporal patterns of mitochondrial Ca2+ signals determine whether the metabolism of these organelles is adjusted or cell death is executed. Mitochondrial Ca2+ channels of the inner mitochondrial membrane (IMM) actually implement mitochondrial uptake from cytosolic Ca2+ rises. Despite great efforts in the past, the identity of mitochondrial Ca2+ channels is still elusive. Numerous studies aimed to characterize mitochondrial Ca2+ uniport channels and provided a detailed profile of these great unknowns with important functions. This mini-review revisits previous research on the mechanisms of mitochondrial Ca2+ uptake and aligns them with most recent findings. PMID:20074570

  18. Optimal unambiguous comparison of two unknown squeezed vacua

    SciTech Connect

    Olivares, Stefano; Paris, Matteo G. A.; Sedlak, Michal; Rapsan, Peter; Busek, Vladimir

    2011-01-15

    We propose a scheme for the unambiguous state comparison (USC) of two unknown squeezed vacuum states of the electromagnetic field. Our setup is based on linear optical elements and photon-number detectors, and it achieves optimal USC in an ideal case of unit quantum efficiency. In realistic conditions, i.e., for nonunit quantum efficiency of photodetectors, we evaluate the probability of getting an ambiguous result as well as the reliability of the scheme, thus showing its robustness in comparison to previous proposals.

  19. 1979J2 - Discovery of a previously unknown Jovian satellite

    NASA Technical Reports Server (NTRS)

    Synnott, S. P.

    1980-01-01

    Detailed examination of imaging data of Jupiter taken by Voyager 1 reveals a previously unknown satellite 1979J2. Analysis of the image on the Jovian disk indicates that it is not an atmospheric feature or the shadow of any known satellite. The orbital period is calculated at 16 hours 11 minutes 21.25 seconds + or - 0.5 second and the semimajor axis is 3.1054 Jupiter radii. The observed profile is roughly circular with a diameter of 80 kilometers. An albedo of approximately 0.05 is reported, which is similar to Amalthea's. The geometry of the observational situation is illustrated.

  20. Mechanics of hearing 2014 known unknowns: A moderated discussion

    NASA Astrophysics Data System (ADS)

    Nowotny, Manuela; Olson, Elizabeth

    2015-12-01

    The following is an edited transcript of a recorded discussion session on the topic of "Mechanics of Hearing 2014 Known Unknowns". The discussion, moderated by the authors, took place at the 12th International Workshop on the Mechanics of Hearing held at Cape Sounio, Greece, in June 2014. All participants knew that the session was being recorded. In view of both the spontaneous nature of the discussion and the editing, however, this transcript may not represent the considered or final views of the participants, and may not represent a consensus of experts in the field. The reader is advised to consult additional independent publications.