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1

Image Restoration with Mixed or Unknown Noises , Zuowei Shen  

E-print Network

Image Restoration with Mixed or Unknown Noises Zheng Gong , Zuowei Shen , and Kim-Chuan Toh Abstract This paper proposes a simple model for image restoration with mixed or unknown noises. It can handle image restoration without assuming any prior knowledge of the noise distribution

Shen, Zuowei

2

A simple non-iterative algorithm for 2-D tomography with unknown view angles  

E-print Network

for both the un- known angles and the unknown image simultaneously, which is time that the projec- tion (view) angles need not be known. Specifically, if projection data at more than 24 unknown an unknown image from its projections at un- known angles in [1], [3] and [5]. The approach used here

Yagle, Andrew E.

3

Overview of Neutrino Mixing Models and Their Mixing Angle Predictions  

E-print Network

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.

Carl H. Albright

2009-11-12

4

RHYTHMIXEARCH: SEARCHING FOR UNKNOWN MUSIC BY MIXING KNOWN MUSIC  

Microsoft Academic Search

We present a novel method for searching for unknown music. RhythMiXearch is a music search system we de- veloped that can accept two music inputs and mix those inputs to search for music that could reasonably be a re- sult of the mixture. This approach expands the ability of Query-by-Example and allows greater flexibility for users in finding unknown music.

Makoto P. Kato

2009-01-01

5

Measurement of ?( ?? ?? ?)\\/ ?( ?? ??) and the pseudoscalar mixing angle  

Microsoft Academic Search

We have measured the radiative decays ????, ????? selecting ?+????? final state in a sample of ?5×107?-mesons produced at the Frascati ?-factory DA?NE. We obtain ?(?????)\\/?(????)=(4.70±0.47±0.31)×10?3. From this result we derive new accurate values for the branching ratio BR(?????)=(6.10±0.61±0.43)×10?5 and the mixing angle of pseudoscalar mesons in the flavour basis ?P=(41.8+1.9?1.6)°.

A Aloisio; F Ambrosino; A Antonelli; M Antonelli; C Bacci; G Bencivenni; S Bertolucci; C Bini; C Bloise; V Bocci; F Bossi; P Branchini; S. A Bulychjov; G Cabibbo; R Caloi; P Campana; G Capon; G Carboni; M Casarsa; V Casavola; G Cataldi; F Ceradini; F Cervelli; F Cevenini; G Chiefari; P Ciambrone; S Conetti; S Dell'Agnello; A Denig; A Doria; M Dreucci; O Erriquez; A Farilla; G Felici; A Ferrari; M. L Ferrer; G Finocchiaro; C Forti; A Franceschi; P Franzini; C Gatti; P Gauzzi; S Giovannella; E Gorini; F Grancagnolo; E Graziani; S. W Han; M Incagli; L Ingrosso; W Kluge; C Kuo; V Kulikov; F Lacava; G Lanfranchi; J Lee-Franzini; D Leone; F Lu; M Martemianov; M Matsyuk; W Mei; L Merola; R Messi; S Miscetti; M Moulson; S Müller; F Murtas; M Napolitano; A Nedosekin; F Nguyen; M Palutan; L Paoluzi; E Pasqualucci; L Passalacqua; A Passeri; V Patera; E Petrolo; G Pirozzi; C Pistillo; L Pontecorvo; M Primavera; F Ruggieri; P Santangelo; E Santovetti; G Saracino; R. D Schamberger; B Sciascia; A Sciubba; F Scuri; I Sfiligoi; T Spadaro; E Spiriti; G. L Tong; L Tortora; E Valente; P Valente; B Valeriani; G Venanzoni; S Veneziano; A Ventura; Y Xu; Y Yu

2002-01-01

6

4.MD,G Finding an unknown angle  

NSDL National Science Digital Library

This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important asects of the task and its potential use. Here are the first few lines of the commentary for this task: In the figure, $ABCD$ is a rectangle and $\\angle CAD = 31^{\\circ}$. Find $\\angle BAC$....

7

Perturbative Estimates of Lepton Mixing Angles in Unified Models  

E-print Network

Many unified models predict two large neutrino mixing angles, with the charged lepton mixing angles being small and quark-like, and the neutrino masses being hierarchical. Assuming this, we present simple approximate analytic formulae giving the lepton mixing angles in terms of the underlying high energy neutrino mixing angles together with small perturbations due to both charged lepton corrections and renormalisation group (RG) effects, including also the effects of third family canonical normalization (CN). We apply the perturbative formulae to the ubiquitous case of tri-bimaximal neutrino mixing at the unification scale, in order to predict the theoretical corrections to mixing angle predictions and sum rule relations, and give a general discussion of all limiting cases.

Stefan Antusch; Stephen F. King; Michal Malinsky

2008-10-21

8

Generalized mixing angles in gauge theories with natural flavor conservation  

SciTech Connect

A number of theorems, relating Natural Flavor Conservation and Calculability are proven for general gauge models of the weak and electromagnetic interactions with an unbroken U(1) symmetry. The concept of nontriviality - a necessary condition that all naturally flavor conserving gauge models must obey in order to have nontrivial mixing angles - is introduced. It is found that naturality groups guaranteeing Natural Flavor Conservation cannot generate meaningful mixing angles in any gauge model.

Rothman, Arthur C.; Kang, Kyungsik

1981-01-01

9

Reactor mixing angle from hybrid neutrino masses  

E-print Network

In terms of its eigenvector decomposition, the neutrino mass matrix (in the basis where the charged lepton mass matrix is diagonal) can be understood as originating from a tribimaximal dominant structure with small deviations, as demanded by data. If neutrino masses originate from at least two different mechanisms, referred to as "hybrid neutrino masses", the experimentally observed structure naturally emerges provided one mechanism accounts for the dominant tribimaximal structure while the other is responsible for the deviations. We demonstrate the feasibility of this picture in a fairly model-independent way by using lepton-number-violating effective operators, whose structure we assume becomes dictated by an underlying $A_4$ flavor symmetry. We show that if a second mechanism is at work, the requirement of generating a reactor angle within its experimental range always fixes the solar and atmospheric angles in agreement with data, in contrast to the case where the deviations are induced by next-to-leading order effective operators. We prove this idea is viable by constructing an $A_4$-based ultraviolet completion, where the dominant tribimaximal structure arises from the type-I seesaw while the subleading contribution is determined by either type-II or type-III seesaw driven by a non-trivial $A_4$ singlet (minimal hybrid model). After finding general criteria, we identify all the $\\mathbb{Z}_N$ symmetries capable of producing such $A_4$-based minimal hybrid models.

D. Aristizabal Sierra; I. de Medeiros Varzielas

2014-04-09

10

Weak mixing angles from semileptonic decays in the quark model  

Microsoft Academic Search

We use the constituent-quark model to predict the electron spectra in semileptonic meson decays. Particular attention is paid to the end-point region of the spectrum in B decays, which is important to the determination of the b-->u weak mixing angle.

Benjamin Grinstein; Mark B. Wise; Nathan Isgur

1986-01-01

11

Unified Parametrization for Quark and Lepton Mixing Angles  

E-print Network

We propose a new parametrization for the quark and lepton mixing matrices: the two 12-mixing angles (the Cabibbo angle and the angle responsible for solar neutrino oscillations) are at zeroth order pi/12 and pi/5, respectively. The resulting 12-elements in the CKM and PMNS matrices, V_{us} and U_{e2}, are in this order irrational but simple algebraic numbers. We note that the cosine of pi/5 is the golden ratio divided by two. The difference between pi/5 and the observed best-fit value of solar neutrino mixing is of the same order as the difference between the observed value and the one for tri-bimaximal mixing. In order to reproduce the central values of current fits, corrections to the zeroth order expressions are necessary. They are small and of the same order and sign for quarks and leptons. We parametrize the perturbations to the CKM and PMNS matrices in a 'triminimal' way, i.e., with three small rotations in an order corresponding to the order of the rotations in the PDG-description of mixing matrices.

Werner Rodejohann

2008-12-09

12

A Non-linear Geodetic Data Inversion Using ABIC for Slip Distribution on a Fault With an Unknown dip Angle  

Microsoft Academic Search

We developed a method of geodetic data inversion for slip distribution on a fault with an unknown dip angle. When fault geometry is unknown, the problem of geodetic data inversion is non-linear. A common strategy for obtaining slip distribution is to first determine the fault geometry by minimizing the square misfit under the assumption of a uniform slip on a

Y. Fukahata; T. J. Wright

2006-01-01

13

Quark and lepton mixing angles with a dodeca-symmetry  

NASA Astrophysics Data System (ADS)

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 ? C is 15°, and the PMNS matrix is of a bi-dodeca-mixing form giving the Solar-neutrino angle ? sol = 30°. Thus, there results the relation ? sol + ? C ? 45°. Out of discrete vacua, a certain vacuum is chosen for this assignment to be consistent with the dodeca-symmetry. A shift of ? 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)? × Z 3 × Z 2.

Kim, Jihn E.; Seo, Min-Seok

2011-02-01

14

A non-linear geodetic data inversion using ABIC for slip distribution on a fault with an unknown dip angle  

Microsoft Academic Search

We have developed a method of geodetic data inversion for slip distribution on a fault with an unknown dip angle. A common strategy for obtaining slip distribution in previous studies is to first determine the fault geometry by minimizing the square misfit under the assumption of a uniform slip on a rectangular fault, and then apply the usual linear inversion

Yukitoshi Fukahata; Tim J. Wright

2008-01-01

15

Multivariate statistical approach to estimate mixing proportions for unknown end members  

USGS Publications Warehouse

A multivariate statistical method is presented, which includes principal components analysis (PCA) and an end-member mixing model to estimate unknown end-member hydrochemical compositions and the relative mixing proportions of those end members in mixed waters. PCA, together with the Hotelling T2 statistic and a conceptual model of groundwater flow and mixing, was used in selecting samples that best approximate end members, which then were used as initial values in optimization of the end-member mixing model. This method was tested on controlled datasets (i.e., true values of estimates were known a priori) and found effective in estimating these end members and mixing proportions. The controlled datasets included synthetically generated hydrochemical data, synthetically generated mixing proportions, and laboratory analyses of sample mixtures, which were used in an evaluation of the effectiveness of this method for potential use in actual hydrological settings. For three different scenarios tested, correlation coefficients (R2) for linear regression between the estimated and known values ranged from 0.968 to 0.993 for mixing proportions and from 0.839 to 0.998 for end-member compositions. The method also was applied to field data from a study of end-member mixing in groundwater as a field example and partial method validation.

Valder, Joshua F.; Long, Andrew J.; Davis, Arden D.; Kenner, Scott J.

2012-01-01

16

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)

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.

Helms, V. T., III

1978-01-01

17

Semi-Empirical Neutrino and Quark Mixing Angle Broken 4-Color Geometric Symmetry  

E-print Network

Two semi-empirical ideas are guiding the present research: 1) one neutrino and N color quark triple mixing angles have second physical meaning of vector direction angles in euclidean 3-space, and 2) the difference between neutrino and quark mixing in the SM weak interactions is mostly conditioned by known fundamental difference of these particles by numbers of color degree of freedom. As main physical inference, the elementary particle mixing angles obey a novel phenomenological quark-neutrino (N+1)-color and 3 mixing angle symmetric positive definite quadratic Pythagorean equation in terms of double mixing angles. This equation predicts immediately that two large solar and atmospheric angles must be accompanied by one small not zero theta-13 neutrino angle in convincing agreement with recent new theta-13 experimental data. Benchmark flavor mixing pattern - united bimaximal neutrino and zero quark ones - follows from solutions of the primary equation without free parameters. Agreement with known experimental data follows only when the number of quark colors is equal to the number of particle flavors, N = 3. Together with closely related to the fine structure constant one empirical small parameter, that benchmark pattern determines realistic quark and neutrino mixing angles in good agreement with data and especially accurate for quark Cabibbo and neutrino solar angles. Coming accurate neutrino mixing angle data are important for testing the Pythagorean equation.

E. M. Lipmanov

2014-02-17

18

Improved measurements of the neutrino mixing angle ?[subscript 13] with the Double Chooz detector  

E-print Network

The Double Chooz experiment presents improved measurements of the neutrino mixing angle ?[subscript 13] using the data collected in 467.90 live days from a detector positioned at an average distance of 1050 m from two ...

Conrad, Janet

19

Angles  

NSDL National Science Digital Library

Play these games to determine the best angles for success! Alien Angles Set the angle to rescue the alien. Space Angles Target the angle to shoot the alien spaceship. Mini Golf Knowing the angles will help you get the ball in the hole. ...

Clark, Mr

2012-10-31

20

Ansatz of Leptonic Mixing: The Alliance of Bi-Maximal Mixing with a Single-Angle Rotation  

E-print Network

We introduce an ansatz of the PMNS matrix that consists of specific types of transformations. Bi-maximal mixing is taken for the neutrino masses, while a single-angle rotation in the 1-2 block is taken for the charged lepton masses. Motivated by the implications of the recent results on neutrino oscillations, $\\theta_{23}$ in the first octant and non-zero $\\theta_{13}$ are predicted by the ansatz. Three physical mixing angles are expressed in terms of a single variable, the 1-2 angle of charged leptons, so that a simple relation among the angles has been obtained: $\\tan\\theta_{13}=\\sqrt{2}(\\sin\\theta_{23}-\\sin\\theta_{12})$. It follows that a model of the inverted hierarchy that can produce the given ansatz is proposed.

Kim Siyeon

2012-08-13

21

Angles  

NSDL National Science Digital Library

This set of eight interactive activities lets the user explore angles from many different perspectives. Activities include (1) visualizing the size of an angle; (2) examining objects that will stand or fall with right and non-right angles; (3) identifying obtuse, right, acute and straight angles; (4) guessing angle measures with different levels of precision; (5) exploring regular shapes and their angle measures; (6) studying angles in a fractal tree that is drawn with user inputs of the same angle measure between the branches at each stage; (7) exploring angle measures through firing a cannon (8) drawing with a Logo activity.

Edkins, Jo

2007-01-01

22

A numerical investigation of mixing and spreading across an angled discontinuity  

NASA Astrophysics Data System (ADS)

We study mixing and spreading in a very simple heterogeneous system: a numerical flow cell comprised of two homogeneous porous media separated by a sharp angled interface. The two media have identical porosity, but differing permeability and dispersivity characteristics representing a fine and a coarse medium. We focus on transport in advection-dominated systems as the primary role of the angled interface is to distort the velocity field. We demonstrate that the angle of the interface influences spreading in the system as observed by depth averaged breakthrough curves, but that the direction of flow does not appear to have a significant role on this. We also study evolution of mixing in the system as quantified by the dilution index. We demonstrate that when transverse dispersion is neglected global rates of mixing appear very similar for all considered interface angles, despite discernible differences in spreading. As a consequence this paper demonstrates that systems with quite different spreading characteristics can have similar mixing characteristics, and likewise systems with identical spreading characteristics can have quite different mixing. This work reinforces the limited applicability of using information from depth averaged breakthrough curves in assessing mixing and mixing driven phenomena.

Schneider, Brandon; Paster, Amir; Bolster, Diogo

2013-12-01

23

Large neutrino mixing angles for type-I see-saw mechanism in SO(10) GUT  

E-print Network

We consider the neutrino mixing angles in an SO(10) GUT with the usual Higgs structure in which neutrino masses are explained by the type-I see-saw mechanism. The Dirac-neutrino Yukawa matrix then has a structure similar to that of the $u$-quark. We determine the light neutrino mass matrix through type-I see-saw mechanism using the experimentally consistent $u$-quark Yukawa matrix. We find that large neutrino mixing-angles emerge naturally in this model.

Bipin R. Desai; G. Rajasekaran; U. Sarkar

2005-04-08

24

Running Effects on Lepton Mixing Angles in Flavour Models with Type I Seesaw  

E-print Network

We study renormalization group running effects on neutrino mixing patterns when a (type I) seesaw model is implemented by suitable flavour symmetries. We are particularly interested in mass-independent mixing patterns to which the widely studied tribimaximal mixing pattern belongs. In this class of flavour models, the running contribution from neutrino Yukawa coupling, which is generally dominant at energies above the seesaw threshold, can be absorbed by a small shift on neutrino mass eigenvalues leaving mixing angles unchanged. Consequently, in the whole running energy range, the change in mixing angles is due to the contribution coming from charged lepton sector. Subsequently, we analyze in detail these effects in an explicit flavour model for tribimaximal neutrino mixing based on an A4 discrete symmetry group. We find that for normally ordered light neutrinos, the tribimaximal prediction is essentially stable under renormalization group evolution. On the other hand, in the case of inverted hierarchy, the deviation of the solar angle from its TB value can be large depending on mass degeneracy.

Yin Lin; Luca Merlo; Alessio Paris

2009-11-16

25

Angles  

NSDL National Science Digital Library

This Java applet enables students to investigate acute, obtuse, and right angles. The student decides to work with one or two transversals and a pair of parallel lines. Angle measure is given for one angle. The student answers a short series of questions about the size of other angles, identifying relationships such as vertical and adjacent angles and alternate interior and alternate exterior angles. In addition to automatically checking the student's answers, the applet can keep score of correct answers. From the activity page, What, How, and Why buttons open pages that explain the activity's purpose, function, and how the mathematics fits into the curriculum. Supplemental resources include lesson plans and a handout with a grid for showing the relationship between all possible angles that occur when parallel lines are cut by a transversal. Copyright 2005 Eisenhower National Clearinghouse

Foundation, Shodor E.

2004-01-01

26

Radiative Generation of Quark Masses and Mixing Angles in the Two Higgs Doublet Model  

E-print Network

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 zero-th 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 $|V_{ub}|,|V_{cb}|\\ll |V_{us}|$. 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.

Alejandro Ibarra; Ana Solaguren-Beascoa

2014-07-04

27

Angles  

NSDL National Science Digital Library

In this activity, students practice comparing angles when a transversal intersects two parallel lines. This activity allows students to explore the vocabulary used when comparing angles (e.g., alternate, same-side, interior, corresponding, etc.). This activity includes supplemental materials, including background information about the topics covered, a description of how to use the application, and exploration questions for use with the java applet.

2011-03-04

28

Understanding the linear see-saw neutrino mass relations and large mixing angle MSW solution  

E-print Network

We study the effective ways for generating the linear see-saw neutrino mass relations and large neutrino mixing angles in two classes of grand unified SO(10) models where the texture of Dirac neutrino mass matrix is related to either the charged lepton mass matrix (case A) or the up-quark mass matrix (case B). We also briefly analyse their stability criteria and they are found to be stable under under radiative corrections at low energies.

N. Nimai Singh

2000-09-07

29

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

SciTech Connect

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.

Ramond, P.

1992-01-01

30

Constraint on the heavy sterile neutrino mixing angles in the SO(10) model with double see-saw mechanism  

E-print Network

Constraints on the heavy sterile neutrino mixing angles are studied in the framework of a minimal supersymmetric ${\\rm SO}(10)$ model with {\\it double see-saw mechanism}. A new singlet matter in addition to the right-handed neutrinos is introduced to realize the double see-saw mechanism. The minimal ${\\rm SO}(10)$ model gives an unambiguous Dirac neutrino mass matrix, which enables us to predict the masses and the mixing angles in the enlarged $9 \\times 9$ neutrino mass matrix. Mixing angles between the light Majorana neutrinos and the heavy sterile neutrinos are shown to be within the LEP experimental bound on all ranges of the Majorana phases.

Takeshi Fukuyama; Tatsuru Kikuchi; Koichi Matsuda

2005-10-05

31

A study on supersonic mixing by circular nozzle with various injection angles for air breathing engine  

NASA Astrophysics Data System (ADS)

SCRAM-jet engine is considered to be one of the useful system propulsion for super/hypersonic transportation vehicle and various researches were made to develop the engine. However, there are a lot of problems to be solved to develop it and one of them is the problem of supersonic mixing. In the SCRAM-jet engine combustor, main airflow is supersonic and residence time of the air is very short (about 1 ms). Hence rapid mixing of air and fuel is necessary. However, usually it is quite difficult to mix fuel with air in very short distance. Also total pressure loss occurs by flow interaction the air and fuel. Total pressure loss is not preferable because it causes the thrust loss. Therefore, supersonic mixing with very rapid mixing and lower total pressure loss ratio is highly requested. In order to develop the supersonic mixing, it is very important to understand the effect of injection angle. In present study, we investigate the effect of injection angle with circular sonic nozzle by changing the injection angle. Experimental and computational studies on supersonic mixing phenomena of two-dimensional slot injector with various injection angles were conducted. Supersonic wind tunnel was used for the experiments. The free stream Mach number is 3.8, total pressure is 1.1 MPa and total temperature is 287 K on average. As a secondary gas, helium gas was injected at sonic speed from the circular nozzle. The injection angle is 30°, 90° and 150°. Its total pressure is 0.4 MPa and total temperature is 287 K on average. The same flow field was also simulated by solving three-dimensional full Navier-Stokes equation with AUSM-DV scheme [Y. Wada, M.S. Liou, A flux splitting scheme with high-resolution and robustness for discontinuities, AIAA Paper 94-0083, 1994] for convective terms and full implicit LU-ADI factorization method [S. Obayashi, K. Matsushima, K. Fujii, K. Kuwahara, Improvements in efficiency and reliability for Navier-Stokes computations using the LU-ADI factorization algorithm, AIAA Paper 86-0338, 1986] for time integration. Central difference was used for viscous terms and k-? two-equation turbulence model [D.C. Wilcox, Reassessment of the scale determining equation for advanced turbulent models, J. AIAA 26(11) (1988) 1299-1310; D.C. Wilcox, A two-equation turbulence model for wall-bounded and free-share flows, AIAA Paper 93-2905, 1993] was also employed. In the experiments, stream line on the wall surface was revealed by the oil flow picture and the flow field was visualized by the Shlieren photograph. The wall static pressure profile along the flow was obtained by the wall pressure measurements. Also volume fraction distribution measurements were conducted. Each one of those showed good agreement with computational ones. From the thorough investigation of the flow field by experiments and computations, various characteristics of the supersonic mixing with circular nozzle have been revealed.

Aso, S.; Inoue, K.; Yamaguchi, K.; Tani, Y.

2009-09-01

32

Measurement of the pseudoscalar mixing angle and ? ? gluonium content with the KLOE detector  

Microsoft Academic Search

We have measured the ratio R?=BR(?????)\\/BR(????) by looking for the radiative decays ????? and ???? into the final states ?+??7? and 7?, respectively, in a sample of ?1.4×109? mesons produced at the Frascati ? factory. We obtain R?=(4.77±0.09stat±0.19syst)×10?3, from which we derive BR(?????)=(6.20±0.11stat±0.25syst)×10?5. Assuming the ?? has zero gluonium content, we extract the pseudoscalar mixing angle in the quark-flavor basis,

F. Ambrosino; A. Antonelli; M. Antonelli; C. Bacci; P. Beltrame; G. Bencivenni; S. Bertolucci; C. Bini; C. Bloise; S. Bocchetta; V. Bocci; F. Bossi; D. Bowring; P. Branchini; R. Caloi; P. Campana; G. Capon; T. Capussela; F. Ceradini; S. Chi; G. Chiefari; P. Ciambrone; S. Conetti; E. De Lucia; A. De Santis; P. De Simone; G. De Zorzi; S. Dell'Agnello; A. Denig; A. Di Domenico; C. Di Donato; S. Di Falco; B. Di Micco; A. Doria; M. Dreucci; G. Felici; A. Ferrari; M. L. Ferrer; G. Finocchiaro; S. Fiore; C. Forti; P. Franzini; C. Gatti; P. Gauzzi; S. Giovannella; E. Gorini; E. Graziani; M. Incagli; W. Kluge; V. Kulikov; F. Lacava; G. Lanfranchi; J. Lee-Franzini; D. Leone; M. Martini; P. Massarotti; W. Mei; S. Meola; S. Miscetti; M. Moulson; S. Müller; F. Murtas; M. Napolitano; F. Nguyen; M. Palutan; E. Pasqualucci; A. Passeri; V. Patera; F. Perfetto; L. Pontecorvo; M. Primavera; P. Santangelo; E. Santovetti; G. Saracino; B. Sciascia; A. Sciubba; F. Scuri; I. Sfiligoi; T. Spadaro; M. Testa; L. Tortora; P. Valente; B. Valeriani; G. Venanzoni; S. Veneziano; A. Ventura; R. Versaci; G. Xu

2007-01-01

33

Precise measurement of the weak mixing angle in neutrino-nucleon scattering  

NASA Astrophysics Data System (ADS)

We report a precise measurement of the weak mixing angle from the ratio of neutral current to charged current inclusive cross sections in deep-inelastic neutrino-nucleon scattering. The data were gathered at the CCFR neutrino detector in the Fermilab quadrupole-triplet beam, with neutrino energies up to 600 GeV. Using the on-shell definition, sin2?W==1-M2W/M2Z, we obtain sin2?W=0.2218+/-0.0025(stat)+/-0.0036(expt syst)+/-0.0037(model).

Arroyo, C. G.; King, B. J.; Bachmann, K. T.; Bazarko, A. O.; Bolton, T.; Foudas, C.; Lefmann, W. C.; Leung, W. C.; Mishra, S. R.; Oltman, E.; Quintas, P. Z.; Rabinowitz, S. A.; Sciulli, F. J.; Seligman, W. G.; Shaevitz, M. H.; Merritt, F. S.; Oreglia, M. J.; Schumm, B. A.; Bernstein, R. H.; Borcherding, F.; Fisk, H. E.; Lamm, M. J.; Marsh, W.; Merritt, K. W.; Schellman, H. M.; Yovanovitch, D. D.; Bodek, A.; Budd, H. S.; de Barbaro, P.; Sakumoto, W. K.; Kinnel, T.; Sandler, P. H.; Smith, W. H.

1994-05-01

34

See-saw neutrino masses and large mixing angles in the vortex background on a sphere  

E-print Network

In the vortex background on a sphere, a single 6-dimensional fermion family gives rise to 3 zero-modes in the 4-dimensional point of view, which may explain the replication of families in the Standard Model. Previously, it had been shown that realistic hierarchical mass and mixing patterns can be reproduced for the quarks and the charged leptons. Here, we show that the addition of a single heavy 6-dimensional field that is gauge singlet, unbound to the vortex, and embedded with a bulk Majorana mass enables to generate 4D Majorana masses for the light neutrinos through the see-saw mechanism. The scheme is very predictive. The hierarchical structure of the fermion zero-modes leads automatically to an inverted pseudo-Dirac mass pattern, and always predicts one maximal angle in the neutrino see-saw matrix. It is possible to obtain a second large mixing angle from either the charged lepton or the neutrino sector, and we demonstrate that this model can fit all observed data in neutrino oscillations experiments. Also, U_{e3} is found to be of the order ~0.1.

Jean-Marie Frère; Maxim Libanov; Fu-Sin Ling

2010-06-27

35

See-saw neutrino masses and large mixing angles in the vortex background on a sphere  

NASA Astrophysics Data System (ADS)

In the vortex background on a sphere, a single 6-dimensional fermion family gives rise to 3 zero-modes in the 4-dimensional point of view, which may explain the replication of families in the Standard Model. Previously, it had been shown that realistic hierarchical mass and mixing patterns can be reproduced for the quarks and the charged leptons. Here, we show that the addition of a single heavy 6-dimensional field that is gauge singlet, unbound to the vortex, and embedded with a bulk Majorana mass enables to generate 4D Majorana masses for the light neutrinos through the see-saw mechanism. The scheme is very predictive. The hierarchical structure of the fermion zero-modes leads automatically to an inverted pseudo-Dirac mass pattern, and always predicts one maximal angle in the neutrino see-saw matrix. It is possible to obtain a second large mixing angle from either the charged lepton or the neutrino sector, and we demonstrate that this model can fit all observed data in neutrino oscillations experiments. Also, U e3 is found to be of the order ? ˜ 0 .1.

Frère, J.-M.; Libanov, M.; Ling, F.-S.

2010-09-01

36

Minimal see-saw model predicting best fit lepton mixing angles  

NASA Astrophysics Data System (ADS)

We discuss a minimal predictive see-saw model in which the right-handed neutrino mainly responsible for the atmospheric neutrino mass has couplings to (?e ,?? ,??) proportional to (0 , 1 , 1) and the right-handed neutrino mainly responsible for the solar neutrino mass has couplings to (?e ,?? ,??) proportional to (1 , 4 , 2), with a relative phase ? = - 2 ? / 5. We show how these patterns of couplings could arise from an A4 family symmetry model of leptons, together with Z3 and Z5 symmetries which fix ? = - 2 ? / 5 up to a discrete phase choice. The PMNS matrix is then completely determined by one remaining parameter which is used to fix the neutrino mass ratio m2 /m3. The model predicts the lepton mixing angles ?12 ?34? ,?23 ?41? ,?13 ?9.5?, which exactly coincide with the current best fit values for a normal neutrino mass hierarchy, together with the distinctive prediction for the CP violating oscillation phase ? ?106?.

King, Stephen F.

2013-07-01

37

Constructing the large mixing angle MNS matrix in see-saw models with right-handed neutrino dominance  

E-print Network

Recent SNO results strongly favour the large mixing angle (LMA) MSW solar solution. We argue that there are only two technically natural low energy neutrino mass matrix structures consistent with the LMA MSW solution, corresponding to either a hierarchy or an inverted hierarchy with pseudo-Dirac neutrinos. We first present a model-independent analysis in which we diagonalise each of these two mass matrix structures to leading order in $\\theta_{13}$ and extract the neutrino masses, mixing angles and phases. In this analysis we express the MNS matrix to leading order in the small angle $\\theta_{13}$ including the neutrino {\\em and} charged lepton mixing angles and phases, the latter playing a crucial r\\^{o}le for allowing the inverted hierarchy case to be consistent with the LMA MSW solution. We then consider the see-saw mechanism with right-handed neutrino dominance and show how the successful neutrino mass matrix structures may be constructed with no tuning and with small radiative corrections, leading to a full, partial or inverted neutrino mass hierarchy. In each case we derive approximate analytic relations between the input see-saw parameters and the resulting neutrino masses, mixing angles and phases, which will provide a useful guide for unified model building. For the hierarchical cases the LMA MSW solution gives a soft lower bound $|U_{e3}|\\simgt 0.1$, just below the current CHOOZ limit. Both hierarchical and inverted hierarchical cases predict small $\\beta \\beta_{0\

S. F. King

2002-04-30

38

The MOLLER Experiment: An Ultra-Precise Measurement of the Weak Mixing Angle Using Møller Scattering  

E-print Network

The physics case and an experimental overview of the MOLLER (Measurement Of a Lepton Lepton Electroweak Reaction) experiment at the 12 GeV upgraded Jefferson Lab are presented. A highlight of the Fundamental Symmetries subfield of the 2007 NSAC Long Range Plan was the SLAC E158 measurement of the parity-violating asymmetry $A_{PV}$ in polarized electron-electron (M{\\o}ller) scattering. The proposed MOLLER experiment will improve on this result by a factor of five, yielding the most precise measurement of the weak mixing angle at low or high energy anticipated over the next decade. This new result would be sensitive to the interference of the electromagnetic amplitude with new neutral current amplitudes as weak as $\\sim 10^{-3}\\cdot G_F$ from as yet undiscovered dynamics beyond the Standard Model. The resulting discovery reach is unmatched by any proposed experiment measuring a flavor- and CP-conserving process over the next decade, and yields a unique window to new physics at MeV and multi-TeV scales, complementary to direct searches at high energy colliders such as the Large Hadron Collider (LHC). The experiment takes advantage of the unique opportunity provided by the upgraded electron beam energy, luminosity, and stability at Jefferson Laboratory and the extensive experience accumulated in the community after a round of recent successfully completed parity-violating electron scattering experiments

MOLLER Collaboration; J. Benesch; P. Brindza; R. D. Carlini; J-P. Chen; E. Chudakov; S. Covrig; M. M. Dalton; A. Deur; D. Gaskell; A. Gavalya; J. Gomez; D. W. Higinbotham; C. Keppel; D. Meekins; R. Michaels; B. Moffit; Y. Roblin; R. Suleiman; R. Wines; B. Wojtsekhowski; G. Cates; D. Crabb; D. Day; K. Gnanvo; D. Keller; N. Liyanage; V. V. Nelyubin; H. Nguyen; B. Norum; K. Paschke; V. Sulkosky; J. Zhang; X. Zheng; J. Birchall; P. Blunden; M. T. W. Gericke; W. R. Falk; L. Lee; J. Mammei; S. A. Page; W. T. H. van Oers; K. Dehmelt; A. Deshpande; N. Feege; T. K. Hemmick; K. S. Kumar; T. Kutz; R. Miskimen; M. J. Ramsey-Musolf; S. Riordan; N. Hirlinger Saylor; J. Bessuille; E. Ihloff; J. Kelsey; S. Kowalski; R. Silwal; G. De Cataldo; R. De Leo; D. Di Bari; L. Lagamba; E. NappiV. Bellini; F. Mammoliti; F. Noto; M. L. Sperduto; C. M. Sutera; P. Cole; T. A. Forest; M. Khandekar; D. McNulty; K. Aulenbacher; S. Baunack; F. Maas; V. Tioukine; R. Gilman; K. Myers; R. Ransome; A. Tadepalli; R. Beniniwattha; R. Holmes; P. Souder; D. S. Armstrong; T. D. Averett; W. Deconinck; W. Duvall; A. Lee; M. L. Pitt; J. A. Dunne; D. Dutta; L. El Fassi; F. De Persio; F. Meddi; G. M. Urciuoli; E. Cisbani; C. Fanelli; F. Garibaldi; K. Johnston; N. Simicevic; S. Wells; P. M. King; J. Roche; J. Arrington; P. E. Reimer; G. Franklin; B. Quinn; A. Ahmidouch; S. Danagoulian; O. Glamazdin; R. Pomatsalyuk; R. Mammei; J. W. Martin; T. Holmstrom; J. Erler; Yu. G. Kolomensky; J. Napolitano; K. A. Aniol; W. D. Ramsay; E. Korkmaz; D. T. Spayde; F. Benmokhtar; A. Del Dotto; R. Perrino; S. Barkanova; A. Aleksejevs; J. Singh

2014-11-15

39

Improving large mixing angle predictions with nonstandard interactions: Neutrino decay in solar matter?  

NASA Astrophysics Data System (ADS)

It has been known for some time that the well-established large mixing angle (LMA) solution to the observed solar neutrino deficit fails to predict a flat energy spectrum for Super-Kamiokande as opposed to what the data indicates. It also leads to a Chlorine rate which appears to be too high as compared to the data. We investigate the possible solution to these inconsistencies with nonstandard neutrino interactions, assuming that they come as extra contributions to the ???? and ??e vertices that affect both the propagation of neutrinos in the Sun and their detection. We find that, among the many possibilities for nonstandard couplings, only the diagonal imaginary ones lead to a solution to the tension between the LMA predictions and the data, implying neutrino instability in the solar matter. Unitarity requirements further restrict the solution and a neutrino decay into an antineutrino and a Majoron within the Sun is the one favored. Antineutrino probability is however too small to open the possibility of experimentally observing antineutrinos from the Sun due to NSI.

Das, C. R.; Pulido, João

2011-03-01

40

Improved measurements of the neutrino mixing angle ? 13 with the Double Chooz detector  

NASA Astrophysics Data System (ADS)

The Double Chooz experiment presents improved measurements of the neutrino mixing angle ? 13 using the data collected in 467.90 live days from a detector positioned at an average distance of 1050 m from two reactor cores at the Chooz nuclear power plant. Several novel techniques have been developed to achieve significant reductions of the backgrounds and systematic uncertainties with respect to previous publications, whereas the efficiency of the signal has increased. The value of ? 13 is measured to be sin2 2 ? 13 = 0.090{-/0.029 + 0.032} from a fit to the observed energy spectrum. Deviations from the reactor prediction observed above a prompt signal energy of 4 MeV and possible explanations are also reported. A consistent value of ? 13 is obtained from a fit to the observed rate as a function of the reactor power independently of the spectrum shape and background estimation, demonstrating the robustness of the ? 13 measurement despite the observed distortion. [Figure not available: see fulltext.

Abe, Y.; dos Anjos, J. C.; Barriere, J. C.; Baussan, E.; Bekman, I.; Bergevin, M.; Bezerra, T. J. C.; Bezrukov, L.; Blucher, E.; Buck, C.; Busenitz, J.; Cabrera, A.; Caden, E.; Camilleri, L.; Carr, R.; Cerrada, M.; Chang, P.-J.; Chauveau, E.; Chimenti, P.; Collin, A. P.; Conover, E.; Conrad, J. M.; Crespo-Anadón, J. I.; Crum, K.; Cucoanes, A. S.; Damon, E.; Dawson, J. V.; Dhooghe, J.; Dietrich, D.; Djurcic, Z.; Dracos, M.; Elnimr, M.; Etenko, A.; Fallot, M.; von Feilitzsch, F.; Felde, J.; Fernandes, S. M.; Fischer, V.; Franco, D.; Franke, M.; Furuta, H.; Gil-Botella, I.; Giot, L.; Göger-Neff, M.; Gonzalez, L. F. G.; Goodenough, L.; Goodman, M. C.; Grant, C.; Haag, N.; Hara, T.; Haser, J.; Hofmann, M.; Horton-Smith, G. A.; Hourlier, A.; Ishitsuka, M.; Jochum, J.; Jollet, C.; Kaether, F.; Kalousis, L. N.; Kamyshkov, Y.; Kaplan, D. M.; Kawasaki, T.; Kemp, E.; de Kerret, H.; Kryn, D.; Kuze, M.; Lachenmaier, T.; Lane, C. E.; Lasserre, T.; Letourneau, A.; Lhuillier, D.; Lima, H. P.; Lindner, M.; López-Castaño, J. M.; LoSecco, J. M.; Lubsandorzhiev, B.; Lucht, S.; Maeda, J.; Mariani, C.; Maricic, J.; Martino, J.; Matsubara, T.; Mention, G.; Meregaglia, A.; Miletic, T.; Milincic, R.; Minotti, A.; Nagasaka, Y.; Nikitenko, Y.; Novella, P.; Oberauer, L.; Obolensky, M.; Onillon, A.; Osborn, A.; Palomares, C.; Pepe, I. M.; Perasso, S.; Pfahler, P.; Porta, A.; Pronost, G.; Reichenbacher, J.; Reinhold, B.; Röhling, M.; Roncin, R.; Roth, S.; Rybolt, B.; Sakamoto, Y.; Santorelli, R.; Schilithz, A. C.; Schönert, S.; Schoppmann, S.; Shaevitz, M. H.; Sharankova, R.; Shimojima, S.; Shrestha, D.; Sibille, V.; Sinev, V.; Skorokhvatov, M.; Smith, E.; Spitz, J.; Stahl, A.; Stancu, I.; Stokes, L. F. F.; Strait, M.; Stüken, A.; Suekane, F.; Sukhotin, S.; Sumiyoshi, T.; Sun, Y.; Svoboda, R.; Terao, K.; Tonazzo, A.; Thi, H. H. Trinh; Valdiviesso, G.; Vassilopoulos, N.; Veyssiere, C.; Vivier, M.; Wagner, S.; Walsh, N.; Watanabe, H.; Wiebusch, C.; Winslow, L.; Wurm, M.; Yang, G.; Yermia, F.; Zimmer, V.

2014-10-01

41

Small-angle neutron-scattering study on a structure of microemulsion mixed with polymer networks  

NASA Astrophysics Data System (ADS)

The structure of a microemulsion mixed with polymer networks was investigated by means of small-angle neutron scattering (SANS). The system consists of nonionic surfactant, polymer network, oil, and water. The microemulsion and the polymer network employed in this work are known to undergo temperature-induced structural transition and volume phase transition, respectively. Polymer solutions and gels were made by polymerizing monomer solutions in the presence of microemulsion droplets. In the case of a mixture of an N-isopropylacrylamide (NIPA ) monomer solution and a microemulsion, the NIPA monomer was found to behave as a cosurfactant. However, polymerization resulted in a phase separation to polymer-rich and -poor phases. Interestingly, SANS results indicated that a well-developed ordered structure of oil domains was formed in polymer network and the structure was very different from its parent systems. Furthermore, the system underwent two different types of structural transitions with respect to temperature. One was originated from the structural transition of microemulsion due to the change of the spontaneous curvature and the other from the volume phase transition of the NIPA gel.

Nagao, Michihiro; Okabe, Satoshi; Shibayama, Mitsuhiro

2005-10-01

42

Constructing the large mixing angle MNS matrix in see-saw models with right-handed neutrino dominance  

NASA Astrophysics Data System (ADS)

Recent SNO results strongly favour the large mixing angle (LMA) MSW solar solution. We argue that there are only two technically natural low energy neutrino mass matrix structures consistent with the LMA MSW solution, corresponding to either a hierarchy or an inverted hierarchy with pseudo-Dirac neutrinos. We construct the MNS matrix to leading order in the small angle ?13 including the neutrino and charged lepton mixing angles and phases, the latter playing a crucial rôle for allowing the inverted hierarchy case to be consistent with the LMA MSW solution. We then consider the see-saw mechanism with right-handed neutrino dominance and show how the successful neutrino mass matrix structures may be constructed with no tuning and with small radiative corrections, leading to a full, partial or inverted neutrino mass hierarchy. In each case we derive approximate analytic relations between the input see-saw parameters and the resulting neutrino masses, mixing angles and phases, which will provide a useful guide for unified model building. For the hierarchical cases the LMA MSW solution gives a soft lower bound |Ue3| gtrsim 0.1, just below the current CHOOZ limit. Both hierarchical and inverted hierarchical cases predict small ??0? with |mee| ~ 0.007 eV within the sensitivity of future proposals such as GENIUS. Successful leptogenesis is possible if the dominant right-handed neutrino is the heaviest one, but the leptogenesis phase is unrelated to the MNS phases.

King, Stephen F.

2002-09-01

43

Thermal properties and mixing state of ethylene glycol-water binary solutions by calorimetry, large-angle X-ray scattering, and small-angle neutron scattering.  

PubMed

Thermal properties and mixing states of ethylene glycol (EG)-water binary solutions in the entire mole fraction range of EG, 0 < or = x(EG) < or = 1, have been clarified by using differential scanning calorimetry (DSC), large-angle X-ray scattering (LAXS), and small-angle neutron scattering (SANS) techniques. The DSC curves obtained have shown that the EG-water solutions over the range of EG mole fraction 0.3 < or = x(EG) < or = 0.5 are kept in the supercooling state until approximately 100 K, and those in the range of 0.6 < or = x(EG) < or = 0.8 are vitrified, and those in the ranges of 0 < x(EG) < or = 0.2 and 0.9 < or = x(EG) < 1 are crystallized. The radial distribution function (RDF) for pure EG obtained from the LAXS measurements has suggested that a gauche conformation of an EG molecule is favorable in the liquid. The RDFs for the EG-water solutions have shown that the structure of the binary solutions moderately changes from the inherent structure of EG to the tetrahedral-like structure of water when the water content increases. The SANS intensities for deuterated ethylene glycol (HOCD2CD2OH) (EGd4)-water solutions at x(EG) = 0.4 and 0.6 have not been significantly observed in the temperature range from 298 to 173 K, showing that EG and water molecules are homogeneously mixed. On the other hand, the SANS intensities at x(EG) = 0.2 and 0.9 have been strengthened when the temperature decreases due to crystallization of the solutions. On the basis of all the present results, a relation between thermal properties of EG-water binary solutions and their mixing states clarified by the LAXS and SANS measurements has been discussed at the molecular level. PMID:16800561

Matsugami, Masaru; Takamuku, Toshiyuki; Otomo, Toshiya; Yamaguchi, Toshio

2006-06-29

44

Searching for 'Unknown Unknowns'  

NASA Technical Reports Server (NTRS)

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.

Parsons, Vickie S.

2005-01-01

45

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

NASA Astrophysics Data System (ADS)

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.

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

2014-01-01

46

Unknown unknowns: modeling unanticipated events  

Microsoft Academic Search

In simulations involving uncertainty, two types of unknowns must be taken into account: known unknowns and unknown unknowns. For known unknowns, the nature of the task is known, adequate historical data is available, and although the value of the model variable is unknown, either a theoretical or an empirical probability density function can be established to describe the variable. For

Lobna A. Okashah; Paul M. Goldwater

1994-01-01

47

Constraints on neutrino mixing angle theta_13 and Supernova neutrino fluxes from the LSD neutrino signal from SN1987A  

E-print Network

Detection of 5 events by the Liquid Scintillation Detector (LSD) on February, 23, 1987 was recently interpreted as a detection of the electron neutrino flux from the first stage of the two-stage Supernova collapse. We show that, if neutrino mass hierarchy is normal, such interpretation excludes values of neutrino mixing angle \\theta_{13} larger than 3\\cdot 10^{-2}, independently of the particular Supernova collapse model. Also constraints on the original fluxes of neutrinos and antineutrinos of different flavours are obtained.

Lychkovskiy, O

2006-01-01

48

Constraints on neutrino mixing angle theta_13 and Supernova neutrino fluxes from the LSD neutrino signal from SN1987A  

E-print Network

Detection of 5 events by the Liquid Scintillation Detector (LSD) on February, 23, 1987 was recently interpreted as a detection of the electron neutrino flux from the first stage of the two-stage Supernova collapse. We show that, if neutrino mass hierarchy is normal, such interpretation excludes values of neutrino mixing angle \\theta_{13} larger than 3\\cdot 10^{-2}, independently of the particular Supernova collapse model. Also constraints on the original fluxes of neutrinos and antineutrinos of different flavours are obtained.

Oleg Lychkovskiy

2006-04-12

49

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

SciTech Connect

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.

Hirsch, M.; Vicente, A.; Porod, W. [AHEP Group, Institut de Fisica Corpuscular--C.S.I.C. and Universitat de Valencia, Edificio Institutos de Paterna, Apt 22085, E-46071 Valencia (Spain); Institut fuer Theoretische Physik und Astronomie, Universitaet Wuerzburg, Am Hubland, 97074 Wuerzburg (Germany)

2008-04-01

50

Realization of lepton masses and mixing angles from point interactions in an extra dimension  

NASA Astrophysics Data System (ADS)

We investigate a model on an extra dimension S 1 where plenty of effective boundary points described by point interactions (zero-thickness branes) are arranged. After suitably selecting the conditions on these points for each type of five-dimensional fields, we realize the tiny active neutrino masses, the charged lepton mass hierarchy, and lepton mixings with a CP-violating phase, simultaneously. Not only the quark's but also the lepton's configurations are generated in a unified way with acceptable accuracy, with neither the see-saw mechanism nor symmetries in Yukawa couplings, by suitably setting the model parameters, even though their flavor structures are dissimilar each other. One remarkable point is that a complex vacuum expectation value of the five-dimensional Higgs doublet in this model becomes the common origin of the CP violation in both quark and lepton sectors. The model can be consistent with the results of the precision electroweak measurements and Large Hadron Collider experiments.

Fujimoto, Yukihiro; Nishiwaki, Kenji; Sakamoto, Makoto; Takahashi, Ryo

2014-10-01

51

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

NASA Technical Reports Server (NTRS)

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.

Vadyak, J.; Hoffman, J. D.

1982-01-01

52

Angles, Angles and More Angles!  

NSDL National Science Digital Library

Test Your Angle Knowledge! Angles Telescope Star Gazing Help diget to fill up his scrapbook of stars by using his telescope and pointting at each planet during the night! But make sure you hurry before the sun comes up! Shoot The Space Ship Angles Game Try and figure out which angle you need to use to shoot down the aliens spaceship! ...

Smith, Miss

2011-03-23

53

Small-angle neutron scattering study of the mixed state of Yb3Rh4Sn13  

NASA Astrophysics Data System (ADS)

Using the small angle neutron scattering (SANS) technique we investigated the vortex lattice (VL) in the mixed state of the stannide superconductor Yb3Rh4Sn13. We find a single domain VL of slightly distorted hexagonal geometry for field strengths between 350 and 18 500 G and temperatures between T =0.05 and 6.5 K. We observe a clear in-plane rotation of the VL for different magnetic field directions relative to the crystallographic axes. We also find that the hexagonal symmetry of the VL is energetically favorable in Yb3Rh4Sn13 for external fields oriented along axes of different symmetries: twofold [110], threefold [111], and fourfold [100]. The observed behavior is different from other conventional and unconventional superconductors. The superconducting state is characterized by an isotropically gapped order parameter with an amplitude of ? (0)=1.57±0.05 meV. At the lowest temperatures, the field dependence of the magnetic form factor in our material reveals a London penetration depth of ?L=2508±17 Å and a Ginzburg coherence length of ? =100±1.3 Å, i.e., it is a strongly type-II superconductor, ? =?L/?=25.

Mazzone, D.; Gavilano, J. L.; Sibille, R.; Ramakrishnan, M.; Kenzelmann, M.

2014-07-01

54

7. Photocopy of photograph (Source unknown) Photographer unknown, Date unknown ...  

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

7. Photocopy of photograph (Source unknown) Photographer unknown, Date unknown EXTERIOR CORNER WALLS SHOWING RAMPART AND CANNONS - Sutter's Fort, L & Twenty-Seventh Streets, Sacramento, Sacramento County, CA

55

21. Photocopy of photograph (Source unknown Photographer unknown, Date unknown ...  

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

21. Photocopy of photograph (Source unknown Photographer unknown, Date unknown TWO RUSSIAN CANNONS OUTSIDE OF FORT ENTRANCE - Sutter's Fort, L & Twenty-Seventh Streets, Sacramento, Sacramento County, CA

56

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

E-print Network

We investigate how precisely the CP nature of the 125 GeV Higgs boson resonance h can be unraveled at the LHC in its decays to tau pairs. We use a method which allows 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, which we analyze for the major charged-prong tau 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 calibation 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 14 degree (5 degree) at the high luminosity LHC (14 TeV) with an integrated luminosity of 500 inverse fb (3 inverse ab).

Stefan Berge; Werner Bernreuther; Sebastian Kirchner

2014-08-04

57

Dynamic flow angle measurements at the diffuser exit of a Mach 2.5 mixed compression inlet  

NASA Technical Reports Server (NTRS)

An exploratory investigation was made to determine the magnitude of the dynamic flow angle at a single point in the diffuser exit of a Mach 2.50 inlet. Results indicate that the maximum flow angle variation was + or - 3 degrees except when vortex generators were installed in the subsonic diffuser. The amplitude of these flow angle fluctuations was directly related to the amplitude of the total pressure fluctuations at the probe survey point. Flow angle fluctuations as high as + or - 11 degrees were recorded when vortex generators were installed near the probe survey point.

Prati, W. M.; Calogeras, J. E.

1972-01-01

58

Experimental study on the effect of angles and positions of mixing vanes on CHF in a 2 × 2 rod bundle with working fluid R-134a  

Microsoft Academic Search

In this paper, the CHF experiment on the effect of angles and position of mixing vanes was performed in a 2×2 rod bundle. The test section had rectangular geometry in which four rod, each with a diameter of 9.5mm, were inserted. The rod-to-rod gap was 3.15mm, and the rod-to-wall gap was 1.575mm. It was vertically installed in the test loop

Byung Soo Shin; Soon Heung Chang

2005-01-01

59

Race Unknown  

ERIC Educational Resources Information Center

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…

Gray, Katti

2011-01-01

60

Experimental investigations of the influence of thickness and mixed-mode loading on the crack initial angle in LC4-CS aluminum  

NASA Astrophysics Data System (ADS)

The influence of thickness and mixed mode I/II loading on the crack initial angle of aluminum LC4-CS plates of 2, 4, 8 and 14 mm thickness was investigated experimentally from tensile-tearing testing of the compact-tension-shear type specimens. Experimental results of the crack initial angle for various thickness plates and load mode mixity were presented, and compared with theoretical predictions form the maximum tangential stress criterion and the maximum triaxial stress criterion. The crack initial angle is found to vary not only with load mode mixity but also with specimen thickness. The experimental result show a god agreement with theoretical predictions in 2, 14 mm- thickness specimens but a great deal difference in 8 mm-thickness specimens. The results are discussed in the viewpoint of 3D failure theory.

Dong, Huiru; Guo, Wanlin; Yu, Liang

2002-05-01

61

unknown title  

E-print Network

an ste became established in the lake during the summer months. Increased humidity during the winter led to mixing of the lake waters, re-establishment of oxic conditions and to deposition of a thin film of sediment. Such environmental conditions were episodically biota of mixed terrestrial (e.g., plants, insects, birds, smaller and larger lakes existed, which became filled with sand, silt, volcanic ash, and finely laminated claystone. These lake sediments record volcanic eruptions, cata-Palaeogeography, Palaeoclimatology, Palaeoedinosaurs) and lacustrine origin (e.g. fish, crustaceans,interrupted by flash floods and volcanic ash falls, which may have been responsible for the preservation of the more spectacular elements of the Jehol biota such as birds and feathered dinosaurs.

North-eastern China

62

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

E-print Network

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 ...

Alver, Burak Han

63

Unveiling neutrino mixing and leptonic CP violation  

SciTech Connect

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 {theta}{sub 13} and the CP-phase {delta}. 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.

Mena, Olga; /Fermilab

2005-01-01

64

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

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.

Rupcich, Franco; Gilat Schmidt, Taly [Department of Biomedical Engineering, Marquette University, Milwaukee, Wisconsin 53233 (United States)] [Department of Biomedical Engineering, Marquette University, Milwaukee, Wisconsin 53233 (United States); Badal, Andreu; Popescu, Lucretiu M.; Kyprianou, Iacovos [Center for Devices and Radiological Health, US Food and Drug Administration, Silver Spring, Maryland 20905 (United States)] [Center for Devices and Radiological Health, US Food and Drug Administration, Silver Spring, Maryland 20905 (United States)

2013-08-15

65

Human Cryptosporidiosis Diagnosed in Western Australia: a Mixed Infection with Cryptosporidium meleagridis, the Cryptosporidium Mink Genotype, and an Unknown Cryptosporidium Species  

PubMed Central

This report describes a case of cryptosporidiosis from an immunocompetent patient from Perth, Western Australia, suffering from diarrhea and a spectrum of other symptoms. Molecular identification revealed that this patient was infected with three Cryptosporidium species—Cryptosporidium meleagridis, the Cryptosporidium mink genotype, and an unknown Cryptosporidium species. PMID:23637295

Combs, Barry; MacKenzie, Brian; Ryan, Una

2013-01-01

66

A study of the structure of mixed micellar solutions based on heptaethylene glycol monotetradecyl ether and sodium (lithium) dodecyl sulfate by the small-angle neutron scattering method  

SciTech Connect

The micellization in mixed aqueous systems based on a new nonionic surfactant, namely, heptaethylene glycol monotetradecyl ether (C{sub 14}E{sub 7}), and an anionic surfactant, namely, sodium dodecyl sulfate, sodium decyl sulfate, or lithium dodecyl sulfate, is studied by small-angle neutron scattering. Preliminary results of the investigation into the behavior of C{sub 14}E{sub 7} aqueous solutions (at two concentrations, 0.17 and 0.50%) upon addition of small amounts of three different classical anionic surfactants are reported.

Rajewska, A. [Joint Institute for Nuclear Research (Russian Federation)], E-mail: aldonar@jinr.ru; Medrzycka, K.; Hallmann, E. [Gdansk University of Technology (Poland)

2007-09-15

67

Parity-violating Møller scattering. MOLLER: an ultra-precise measurement of the weak mixing angle with a 11 GeV electron beam at Jefferson Laboratory  

NASA Astrophysics Data System (ADS)

Measurements of electroweak observables at Q^2? M_Z^2, if carried out with sufficient accuracy, complement potential discoveries at the Large Hadron Collider. Such measurements will be necessary in order to comprehensively search for new dynamics at the TeV scale. We discuss the new MOLLER project to make a precision measurement of parity-violation in Møller scattering using the upgraded 11 GeV beam at Jefferson Laboratory. This would allow a measurement of the weak mixing angle sin^2?_W with comparable precision to the single best measurement at e + e- colliders, and accesses the contact interaction scale ? ee ˜25 TeV.

Kumar, Krishna S.

2011-11-01

68

Unambiguous discrimination between two unknown qudit states  

E-print Network

We consider the unambiguous discrimination between two unknown qudit states in $n$-dimensional ($n\\geqslant2$) Hilbert space. By equivalence of unknown pure states to known mixed states and with the Jordan-basis method, we demonstrate that the optimal success probability of the discrimination between two unknown states is independent of the dimension $n$. We also give a scheme for a physical implementation of the programmable state discriminator that unambiguously discriminate between two unknown states with optimal probability of success.

Tao Zhou

2011-05-16

69

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

SciTech Connect

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}.

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

70

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

PubMed

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

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

2009-04-10

71

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

PubMed

Decays of B(s)(0) and B(0) mesons into J/? ?+?-?+?- 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/? 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

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

2014-03-01

72

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)

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.

Vadyak, J.; Hoffman, J. D.

1982-01-01

73

The impact of particle shape on the angle of internal friction and the implications for sediment dynamics at a steep, mixed sand-gravel beach  

NASA Astrophysics Data System (ADS)

The impact of particle shape on the angle of internal friction, and the resulting impact on beach sediment dynamics, is still poorly understood. In areas characterized by sediments of specific shape, particularly non-rounded particles, this can lead to large departures from the expected sediment dynamics. The steep slope (1 : 10) of the mixed sand-gravel beach at Advocate Harbour is stable in large-scale morphology over decades, despite a high tidal range of 10 m or more, and intense shore-break action during storms. The Advocate sand (d < 2 mm) was found to have an elliptic, plate-like shape (Corey Shape Index, CSI ? 0.2-0.6). High angles of internal friction of this material were determined using direct shear, ranging from ? ? 41 to 49°, while the round to angular gravel was characterized as ? = 33°. The addition of 25% of the elliptic plate-like sand-sized material to the gravel led to an immediate increase in friction angle to ? = 38°. Furthermore, re-organization of the particles occurred during shearing, characterized by a short phase of settling and compaction, followed by a pronounced strong dilatory behavior and an accompanying strong increase of resistance to shear and, thus, shear stress. Long-term shearing (24 h) using a ring shear apparatus led to destruction of the particles without re-compaction. Finally, submerged particle mobilization was simulated using a tilted tray submerged in a water-filled tank. Despite a smooth tray surface, particle motion was not initiated until reaching tray tilt angles of 31° and more, being ≥7° steeper than for motion initiation of the gravel mixtures. In conclusion, geotechnical laboratory experiments quantified the important impact of the elliptic, plate-like shape of Advocate Beach sand on the angles of internal friction of both pure sand and sand-gravel mixtures. The resulting effect on initiation of particle motion was confirmed in tilting tray experiments. This makes it a vivid example of how particle shape can contribute to the stabilization of the beach face.

Stark, N.; Hay, A. E.; Cheel, R.; Lake, C. B.

2014-08-01

74

Absolute molecular weight determination of hypromellose acetate succinate by size exclusion chromatography: use of a multi angle laser light scattering detector and a mixed solvent.  

PubMed

Molecular weight distribution is an important quality attribute for hypromellose acetate succinate (HPMCAS), a pharmaceutical excipient used in spray-dried dispersions. Our previous study showed that neither relative nor universal calibration method of size exclusion chromatography (SEC) works for HPMCAS polymers. We here report our effort to develop a SEC method using a mass sensitive multi angle laser light scattering detector (MALLS) to determine molecular weight distributions of HPMCAS polymers. A solvent screen study reveals that a mixed solvent (60:40%, v/v 50mM NaH(2)PO(4) with 0.1M NaNO(3) buffer: acetonitrile, pH* 8.0) is the best for HPMCAS-LF and MF sub-classes. Use of a mixed solvent creates a challenging condition for the method that uses refractive index detector. Therefore, we thoroughly evaluated the method performance and robustness. The mean weight average molecular weight of a polyethylene oxide standard has a 95% confidence interval of (28,443-28,793) g/mol vs. 28,700g/mol from the Certificate of Analysis. The relative standard deviations of average molecular weights for all polymers are 3-6%. These results and the Design of Experiments study demonstrate that the method is accurate and robust. PMID:21840663

Chen, Raymond; Ilasi, Nicholas; Sekulic, Sonja S

2011-12-01

75

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

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

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

2013-01-01

76

Differing angles on angle  

Microsoft Academic Search

Values of plane angles are expressed with a choice of several units. Historically the quantity needed a unit because it was, and still is, used as a base quantity. ISO\\/TC 12 defines it as a derived, dimensionless quantity, and the International System of Units (SI) gives it the ‘dimensionless unit’ radian, which now means no more than ‘one’. This paper

W H Emerson

2005-01-01

77

Exploring the Unknown  

ERIC Educational Resources Information Center

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…

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

2012-01-01

78

Angle Sums  

NSDL National Science Digital Library

"Examine the angles in a triangle, quadrilateral, pentagon, hexagon, heptagon or octagon and find a relationship between the number of sides and the sum of the interior angles." (Source: 2000-2012 National Council of Teachers of Mathematics)

Mathematics, Illuminations N.

2010-05-20

79

Angle Practice!  

NSDL National Science Digital Library

How well do you know your angles? Check out these games and put your knowledge to the test! They will stump you if you don't pay close attention to the different angles they give you! Alien Angles! - Use the protractor to guess where the alien has flown away to. If you pick the right spot, you can save all the aliens! Squirt the Dog! Angle practice - Move the hose using different measures of angles to try and squirt the dog. To what degree? - Think you're ready to challenge yourself? Check out ...

Hume, Ms.

2012-11-02

80

Finding an Unknown Charge  

NSDL National Science Digital Library

Four charges are shown (one is unknown) given in 10-10C that form what is known as a quadrupole. You can measure the potential at any point by dragging the test charge around. Distance is measured in m.

Christian, Wolfgang; Belloni, Mario

2007-01-26

81

Semi-Empirical Flavor Mixing Phenomenology and T2K Theta_13 Data  

E-print Network

Stimulated by recent T2K indications on a surprisingly large neutrino mixing theta_13 angle we suggest that this last unknown angle is not independent but determined by the known large solar and atmospheric neutrino oscillation angles via simple, symmetric, positive-definite equation. Encouragingly, it appears in agreement with recent new long base-line appearance nu-mu to nu-e neutrino oscillation T2K data. At zero approximation this equation determines benchmark bimaximal neutrino mixing matrix as its unique solution with one texture zero. Extension to quark mixing angles leads to definite equation with unit mixing matrix as sole solution. All six realistic neutrino and quark mixing angles are explicitly expressed as small deviations from the zero approximation benchmark ones by one small empirical universal parameter. Thus in the considered semi-empirical flavor phenomenology the system of two related neutrino and quark equations is the source of the known main empirical rule of 'large neutrino mixing angles versus small quark ones' as well as other particle mixing regularities.

E. M. Lipmanov

2011-07-06

82

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

83

7. Photocopy of photograph (Location of original unknown) Photographer unknown, ...  

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

7. Photocopy of photograph (Location of original unknown) Photographer unknown, Date unknown VIEW FROM RAILROAD TRACKS LOOKING NORTHWEST - Omaha Quartermaster Depot Historic District, Twenty-second & Woolworth Streets, Omaha, Douglas County, NE

84

Binding of sodium dodecyl sulfate and hexaethylene glycol mono-n-dodecyl ether to the block copolymer L64: electromotive force, microcalorimetry, surface tension, and small angle neutron scattering investigations of mixed micelles and polymer/micellar surfactant complexes.  

PubMed

The interactions of sodium dodecyl sulfate (SDS) with the triblock copolymer L64 (EO13-PO30-EO13) and hexaethylene glycol mono-n-dodecyl ether (C12EO6) were studied using electromotive force, isothermal titration microcalorimetry, differential scanning microcalorimetry, and surface tension measurements. In certain regions of binding, mixed micelles are formed, and here we could evaluate an interaction parameter using regular solution theory. The mixed micelles of L64 with both SDS and C12EO6 exhibit synergy. When L64 is present in its nonassociated state, it forms polymer/micellar SDS complexes at SDS concentrations above the critical aggregation concentration (cac). The cac is well below the critical micellar concentration (cmc) of pure SDS, and a model suggesting how bound micelles are formed at the cac in the presence of a polymer is described. The interaction of nonassociated L64 with C12EO6 is a very rare example of strong binding between a nonionic surfactant and a nonionic polymer, and C12EO6/L64 mixed micelles are formed. We also carried out small angle neutron scattering measurement to determine the structure of the monomeric polymer/micellar SDS complex, as well as the mixed L64/C12EO6 aggregates. In these experiments, contrast matching was achieved by using the h and d forms of SDS, as well as C12EO6. During the early stages of the formation of polymer-bound SDS micelles, SDS aggregates with aggregation numbers of approximately 20 were found and such complexes contain 4-6 bound L64 monomers. The L64/C12EO6 data confirmed the existence of mixed micelles, and structural information involving the composition of the mixed micelle and the aggregation numbers were evaluated. PMID:16229545

Couderc-Azouani, S; Sidhu, J; Thurn, T; Xu, R; Bloor, D M; Penfold, J; Holzwarth, J F; Wyn-Jones, E

2005-10-25

85

The Unknown Fossil Report  

NSDL National Science Digital Library

This project challenges the students ingenuity, creativity, and resourcefulness! They each receive a fossil of unknown identity (general geographic locality may be given, e.g., I-55 south of St. Louis, MO). The specimen is described in as much detail as possible. Their report should include taxonomic classification (as complete as they can), age, paleoecology, Earth history, and other interpretations they can infer. Identification may require library work, Internet search, etc.

Max Reams

86

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)

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.

Vadyak, J.; Hoffman, J. D.

1978-01-01

87

Improved Measurement of B{sup +}{yields}{rho}{sup +}{rho}{sup 0} and Determination of the Quark-Mixing Phase Angle {alpha}  

SciTech Connect

We present improved measurements of the branching fraction B, 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 B(B{sup +}{yields}{rho}{sup +}{rho}{sup 0})=(23.7{+-}1.4{+-}1.4)x10{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, we perform an isospin analysis and determine the Cabibbo-Kobayashi-Maskawa phase angle {alpha}=arg(-V{sub td}V{sub tb}*/V{sub ud}V{sub ub}*) to be (92.4{sub -6.5}{sup +6.0}) deg.

Aubert, B.; Karyotakis, Y.; Lees, J. P.; Poireau, V.; Prencipe, E.; Prudent, X.; Tisserand, V. [Laboratoire d'Annecy-le-Vieux de Physique des Particules (LAPP), Universite de Savoie, CNRS/IN2P3, F-74941 Annecy-Le-Vieux (France); Garra Tico, J.; Grauges, E. [Universitat de Barcelona, Facultat de Fisica, Departament ECM, E-08028 Barcelona (Spain); Lopez, L.; Palano, A.; Pappagallo, M. [INFN Sezione di Bari, I-70126 Bari (Italy); Dipartmento di Fisica, Universita di Bari, I-70126 Bari (Italy); Eigen, G.; Stugu, B.; Sun, L. [University of Bergen, Institute of Physics, N-5007 Bergen (Norway); Battaglia, M.; Brown, D. N.; Kerth, L. T.; Kolomensky, Yu. G.; Lynch, G. [Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720 (United States)] (and others)

2009-04-10

88

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

89

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

90

62. Men Picking Rocks, date unknown Historic Photograph, Photographer Unknown; ...  

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

62. Men Picking Rocks, 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

91

64. Final Coal Conveyor, date unknown Historic Photograph, Photographer Unknown; ...  

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

64. Final Coal Conveyor, 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

92

1. Building a brush dam. Location unknown. Photographer: Unknown, no ...  

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

1. Building a brush dam. Location unknown. Photographer: Unknown, no date. Source: Salt River Project Archives (SRPA) - Tempe Canal, South Side Salt River in Tempe, Mesa & Phoenix, Tempe, Maricopa County, AZ

93

1. Photocopy of photograph (Original source unknown, date unknown) EXTERIOR, ...  

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

1. Photocopy of photograph (Original source unknown, date unknown) EXTERIOR, SOUTH FRONT OF ADOBE INCLUDING ENVIRONS - Gaspar Orena House, East de la Guerra Street, Santa Barbara, Santa Barbara County, CA

94

4. Photocopy of photograph (location of original negative unknown) Unknown, ...  

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

4. Photocopy of photograph (location of original negative unknown) Unknown, Photographer, Date Unknown PERSPECTIVE VIEW OF SOUTH (FRONT) AND EAST SIDE BEFORE HOUSE MOVED SHOWING THIRTEEN LIQUIDAMBAR TREES IN FOREGROUND - Hamilton Grange, (Moved From) 237 West 141 Street to 141st Street & Amsterdam, New York, New York County, NY

95

6. Photocopy of photograph (location of original negative unknown) Unknown, ...  

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

6. Photocopy of photograph (location of original negative unknown) Unknown, Photographer, Date Unknown PERSPECTIVE VIEW OF SOUTH (FRONT) AND EAST SIDE DURING MOVE SHOWING HOUSE RAISED - Hamilton Grange, (Moved From) 237 West 141 Street to 141st Street & Amsterdam, New York, New York County, NY

96

Learning for an Unknown Future  

ERIC Educational Resources Information Center

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…

Barnett, Ronald

2012-01-01

97

7. Photocopy of photograph (location of original negative unknown) Unknown, ...  

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

7. Photocopy of photograph (location of original negative unknown) Unknown, Photographer, Date Unknown PERSPECTIVE VIEW (SOUTHEAST) FROM ORIGINAL SITE SHOWING THIRTEEN LIQUIDAMBAR TREES (FOREGROUND) AND NORTH AND WEST SIDES OF HOUSE AS LOCATED AND ALTERED AT PRESENT SITE (ENTRANCE STAIRS FROM ORIGINAL SOUTH FRONT MOVED TO PRESENT WEST FRONT) - Hamilton Grange, (Moved From) 237 West 141 Street to 141st Street & Amsterdam, New York, New York County, NY

98

Carboxylic Acid Unknowns and Titration 90 CARBOXYLIC ACID UNKNOWN  

E-print Network

Point/Boiling Point If your carboxylic acid is a solid, take its melting point. If it is a liquid, take its micro- boiling point. C. Titration/Neutralization EquivalenceMolecular Weight Determination WeighCarboxylic Acid Unknowns and Titration 90 CARBOXYLIC ACID UNKNOWN A. Solubility Tests: Water, Na

Jasperse, Craig P.

99

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

100

Learning for an Unknown Future  

ERIC Educational Resources Information Center

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…

Barnett, Ronald

2004-01-01

101

Triangle Geometry: Angles  

NSDL National Science Digital Library

This interactive math site teaches students about angles and triangles. There are interactive activities for measuring angles, exploring types of angles, and adding angles. By using a Java applet and pictures, a proof of the Pythagorean Theorem is demonstrated.

Math Cove

2007-12-12

102

Unknowns and unknown unknowns: from dark sky to dark matter and dark energy  

NASA Astrophysics Data System (ADS)

Answering well-known fundamental questions is usually regarded as the major goal of science. Discovery of other unknown and fundamental questions is, however, even more important. Recognition that "we didn't know anything" is the basic scientific driver for the next generation. Cosmology indeed enjoys such an exciting epoch. What is the composition of our universe ? This is one of the well-known fundamental questions that philosophers, astronomers and physicists have tried to answer for centuries. Around the end of the last century, cosmologists finally recognized that "We didn't know anything". Except for atoms that comprise slightly less than 5% of the universe, our universe is apparently dominated by unknown components; 23% is the known unknown (dark matter), and 72% is the unknown unknown (dark energy). In the course of answering a known fundamental question, we have discovered an unknown, even more fundamental, question: "What is dark matter? What is dark energy?" There are a variety of realistic particle physics models for dark matter, and its experimental detection may be within reach. On the other hand, it is fair to say that there is no widely accepted theoretical framework to describe the nature of dark energy. This is exactly why astronomical observations will play a key role in unveiling its nature. I will review our current understanding of the "dark sky", and then present on-going Japanese project, SuMIRe, to discover even more unexpected questions.

Suto, Yasushi

2010-07-01

103

Reuse Knowns and Unknowns Bill Frakes  

E-print Network

Reuse Knowns and Unknowns Bill Frakes CS Dept, Virginia Tech NCR, Falls Church, VA frakes seldom build completely new systems. known unknowns 1. How to do systematic reuse and DE for systems. Is reusability a valid concept? Unknown knowns? Unknown unknowns? Some Resources ­ ReNews http

Christian, Eric

104

Identification of Streptococcus pneumoniae Serotype 11E, Serovariant 11Av and Mixed Populations by High-Resolution Magic Angle Spinning Nuclear Magnetic Resonance (HR-MAS NMR) Spectroscopy and Flow Cytometric Serotyping Assay (FCSA)  

PubMed Central

Background Recent studies have identified Streptococcus pneumoniae serotype 11E and serovariant 11Av among isolates previously typed as 11A by classical serotyping methods. Serotype 11E and serovariant 11Av differ from serotype 11A by having totally or partially inactive wcjE, a gene in cps locus coding for an O-acetyl transferase. Serotype 11E is rare among carriage isolates but common among invasive isolates suggesting that it survives better during invasion. Aim of this work was to investigate the epidemiology of serotype 11A in a pneumococcal collection using a new serotyping approach based on High-Resolution Magic Angle Spinning Nuclear Magnetic Resonance (HR-MAS NMR) spectroscopy to distinguish serotypes 11A and 11E. Methods A collection of 48 (34 invasive and 14 carriage) S. pneumoniae isolates from Italy, previously identified as serotype 11A by the Quellung reaction, were investigated by wcjE sequencing, HR-MAS NMR spectroscopy and the reference flow cytometric serotyping assay (FCSA) based on monoclonal antibodies. Results HR-MAS NMR spectra from serotypes 11A and 11E showed different NMR peaks indicating that HR-MAS NMR could be used to distinguish these serotypes, although HR-MAS NMR could not distinguish serotype 11Av from serotype 11E unambiguously. Thirty-eight isolates were confirmed to be serotype 11A, 8 isolates with a mutated wcjE were serotype 11E, 1 isolate belonged to serovariant 11Av, and 1 isolate was a mixed population 11A/11Av. All 11E isolates were identified among invasive isolates. Conclusions We proved that HR-MAS NMR can be of potential use for pneumococcal serotyping. The detection of serotype 11E among invasive isolates in our collection, supports previous epidemiological studies suggesting that mutations in wcjE can represent a mechanism promoting pneumococcal survival during invasion. The discovery of a spectrum of immunochemical diversity within established serotypes should stimulate efforts to develop new serotyping approaches. PMID:24967818

Camilli, Romina; Spencer, Brady L.; Moschioni, Monica; Pinto, Vittoria; Berti, Francesco; Nahm, Moon H.; Pantosti, Annalisa

2014-01-01

105

Allocating monitoring effort in the face of unknown unknowns  

USGS Publications Warehouse

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.

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

2010-01-01

106

Massive ascites of unknown origin  

PubMed Central

Massive ascites of unknown origin is an uncommon condition, which represent a diagnostic challenge. Patients with delayed diagnosis and treatment may have a poor prognosis. A 22-year-old female was referred to this hospital due to a 4-year progressive abdominal distension with massive ascites of unknown origin. By thorough investigations, she was eventually diagnosed as chronic calcified constrictive pericarditis. She received pericardiectomy and had an uneventful postoperative course. With a few day paracentesis, ascites did not progress any more. She was doing well at 5-month follow-up and has returned to work. Extracardiac manifestations, such as massive ascites and liver cirrhosis, were rare in patients with constrictive pericarditis. Pericardiectomy can be a radical solution for the treatment of chronic constrictive pericarditis. In order to avoid delayed diagnosis and treatment, physicians have to bear in mind this rare manifestation of chronic calcified constrictive pericarditis. PMID:24600502

Yuan, Shi-Min

2014-01-01

107

Postictal hyperfamiliarity for unknown faces.  

PubMed

Hyperfamiliarity for unknown faces (HFUF) is a rare disorder in which unfamiliar people or faces appear familiar. Three young adults were admitted for acute symptomatic secondarily generalized tonic-clonic seizures (two) and psychomotor status (one). During the days following the seizures the patients continuously experienced a strong familiarity for unknown people, including other patients, visitors, and hospital staff. This disorder disappeared gradually, lasting a mean of 13 days. Brain MRI showed left amygdalohippocampal lesions, suggesting the etiology of encephalitis in two patients and multiple "active" demyelinating lesions in one patient. Interictal and ictal EEG findings showed left temporal epileptiform abnormalities. Two patients had a transitory defect of verbal memory. HFUF is a newly defined postictal symptom, more likely to arise from left temporal epileptic discharges. In our cases it was associated with acute lesions of the temporal areas, suggesting that its occurrence may also imply a structural etiology of epilepsy. PMID:20837401

Michelucci, Roberto; Riguzzi, Patrizia; Rubboli, Guido; Volpi, Lilia; Pasini, Elena; Santoro, Francesca; Meletti, Stefano; Benuzzi, Francesca; Pittau, Francesca; Toni, Francesco; Marliani, Anna F

2010-11-01

108

The Senses of "Unknown Creatures"  

NSDL National Science Digital Library

In this activity, learners use earthworms as "unknown creatures" from the South American jungle to find out how animals use senses. Learners are given supplies to devise their own experiments and test the response of the earthworms to light, touch and chemicals. Learners collect data and draw conclusions based on this data. Learners return the earthworms to their natural habitat (a flower or garden bed) when they are finished with the experiments.

Chudler, Eric

2009-01-01

109

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

NASA Technical Reports Server (NTRS)

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.

Duong, Tuan A.

2012-01-01

110

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

ERIC Educational Resources Information Center

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…

Wang, Lijuan; McArdle, John J.

2008-01-01

111

Patchiness and Spatial Distribution of Laccase Genes of Ectomycorrhizal, Saprotrophic, and Unknown Basidiomycetes  

E-print Network

, Saprotrophic, and Unknown Basidiomycetes in the Upper Horizons of a Mixed Forest Cambisol Patricia Luis1- tributed to ectomycorrhizal, unknown and saprotrophic basidiomycetes, respectively. Most dominant sequences various functional groups of fungi (saprotrophs, symbionts, and pathogens) but not within all species (e

Bruns, Tom

112

Association Between Baseline Angle Width and Induced Angle Opening Following Prophylactic Laser Peripheral Iridotomy  

PubMed Central

Purpose. To evaluate the association between baseline angle width and laser peripheral iridotomy (LPI)-induced opening of the anterior chamber angle. Methods. Anterior segment optical coherence tomography images captured before and after LPI were analyzed to determine the angle opening distance at 250 ?m (AOD250), 500 ?m (AOD500), and 750 ?m (AOD750) from the scleral spur; trabecular–iris space area at 500 ?m (TISA500) and 750 ?m (TISA750) from the scleral spur; angle recess area at 750 ?m (ARA750) from the scleral spur; and trabecular–iris angle (TIA). Differences in preoperative and postoperative measurements for the anterior chamber angle width parameters were compared by paired Student's t-tests. Univariate and linear mixed-effects regression models were used to examine the association between baseline and LPI-induced opening of anterior chamber angle width parameters. Results. Eighty-four eyes of 52 primary angle closure suspects were included in the analysis. AOD250, AOD500, AOD750, TISA500, TISA750, ARA750, and TIA significantly increased following LPI by paired Student's t-tests (all P < 0.0001). Lower baseline measurements were significantly associated with greater postoperative opening in all anterior chamber angle width parameters in both univariate and linear mixed-effects regression analyses (all P < 0.05). Conclusions. Our results showed significant opening of the anterior chamber angle width after LPI and demonstrated an inverse association between baseline and LPI-induced opening of the anterior chamber angle width, such that eyes with a more crowded anterior chamber angle undergoing LPI had a greater magnitude of increase in anterior chamber angle width after the procedure. PMID:23661374

Lee, Roland Y.; Kasuga, Toshimitsu; Cui, Qi N.; Huang, Guofu; He, Mingguang; Lin, Shan C.

2013-01-01

113

Angles of Reflection  

NSDL National Science Digital Library

This interactive simulation shows what happens to light when it hits a mirror. The simluation allows the user to change the angle of the incoming or incident light wave and see the corresponding reflected angle.

Davidson, Michael W.; Tchourioukanov, Kirill I.

2006-06-15

114

What's Your Angle?  

NSDL National Science Digital Library

In this activity, students devise procedures for using a protractor to measure the number of degrees in an angle, and use inductive reasoning to develop "angle sense." Then they describe circumstances and careers that require a working knowledge of angles and their measurements.

2010-01-01

115

Estimation of Unknown Large Power System Dynamics  

Microsoft Academic Search

Instead of approximating an unknown large power system in the neighboring area by an infinite bus of constant voltage and constant frequency, this paper models the large power system DYNAMICS as one large electric machine so that both the voltage and the frequency of the unknown power system bus may vary. For the parameter estimation, an unknown dynamic power system

Yao-nan Yu; M. A. El-Sharkawi; M. D. Wvong

1979-01-01

116

Discovering a Point Source in Unknown Environments  

E-print Network

] among many others. In these works, the robot is in an unknown or partially known planar environmentDiscovering a Point Source in Unknown Environments Martin Burger1 , Yanina Landa2 , Nicolay M impen- etrable (and possibly unknown) obstacles. We present an adaptive algorithm for determining

Tsai, Yen-Hsi Richard

117

Chronic villitis of unknown etiology.  

PubMed

The diagnosis of chronic villitis of unknown etiology (CVUE), characterized by focal areas of inflammation with mononuclear cells and areas of fibrinoid necrosis in chorionic villi, can only be set-up after exclusion of a latent maternal-fetal transmission of infectious agents by sophisticated techniques such as polymerase chain reaction. Significant associations of CVUE with maternal body mass index, multigravidity and ethnicity were reported. While a fetal origin of the inflammatory cells has been evoked, there are many more arguments drawn from histopathology and immunohistology for a maternal immune response against the foreign fetal allograft. CVUE is detected in 7-33% of placentas, mainly after idiopathic intrauterine growth retardation, unexplained prematurity, preeclampsia, perinatal asphyxia and intrauterine fetal death. CVUE is also more frequent in pregnancies affected by autoimmune or alloimmune diseases. Considering the high rate of recurrences after an index case of CVUE, we would suggest to associate aspirine and corticosteroids in further pregnancies, a regimen that was successful in our experience but must be confirmed by other studies. The same is true for the alleviated inflammatory immunologic response recently obtained by a weekly use of maternal intravenous immunoglobulins. PMID:17683846

Boog, Georges

2008-01-01

118

Solidifying the solid angle.  

PubMed

This paper evaluates the position of the solid angle in its application to modeling in electrocardiology. Particular attention is paid to the use of the solid angle for linking cardiac electric activity to the potentials observed on the body surface. In this application, the solid angle is a dominant factor in the expression of the sources during depolarization known as the uniform double layer. In the related equivalent double layer model, the contributions of the elementary sources are also expressed in terms of solid angles, their strength not being uniform. A recently developed theory allows the equivalent double layer to be applied to both depolarization and repolarization. PMID:12539116

van Oosterom, A

2002-01-01

119

Integrated Multimodal Information for Detection of Unknown Objects and Unknown Names , Naoto Iwahasi  

E-print Network

for the discrimination between unknown and known objects. The detection accuracy of an unknown object and its name was 97, for the classification of known and unknown objects. We con- sider a task in which a robot is told "bring me Object Name and their names, the input object is clas- sified into an unknown object categories and known object category

Takiguchi, Tetsuya

120

DIP ANGLE MEASURING DEVICE  

E-print Network

tude of the angle between the true horizon and the visible horizon known as the angle .... chred within the bearing by a support member 38 which is screwed onto the ... and the bearing. 55 to prevent a metal to metal contact, and a steel spring.

Boris J. Gavrisheff

121

What's My Angle?  

NSDL National Science Digital Library

This interactive module offers learners the opportunity to check their knowledge of angle measure and estimation, and the use of a protractor. There are ten activities that vary the tasks and the degree of precision. The site is designed for whiteboard demonstration as well, and it includes a tutorial on angle types and protractor use.

2011-01-01

122

Reading Angles in Maps  

ERIC Educational Resources Information Center

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…

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

2014-01-01

123

Special Angle Pairs Discovery Activity  

NSDL National Science Digital Library

This lesson uses a discovery approach to identify the special angles formed when a set of parallel lines is cut by a transversal. During this lesson students identify the angle pair and the relationship between the angles. Students use this relationship and special angle pairs to make conjectures about which angle pairs are considered special angles.

Barbara Henry

2012-04-16

124

Titration of an Unknown Acid or Base  

NSDL National Science Digital Library

This website contains a JAVA applet that simulates the titration of an unknown acid or base, and provides a graphical output of the titration curve. The unknown compounds are taken from a list of amino acids. Students set up the parameters of the titration, and then create a simulated pH curve. From this they are able to identify the unknown compound from the list, and determine the acid dissociation constant(s) from the titration data.

Blauch, David N.

2011-02-07

125

[Energy drinks: an unknown risk].  

PubMed

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

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

2012-05-01

126

Laser angle sensor development  

NASA Technical Reports Server (NTRS)

Electrical and optical parameters were developed for a two axis (pitch/roll) laser angle sensor. The laser source and detector were mounted in the plenum above the model. Two axis optical distortion measurements of flow characteristics in a 0.3 transonic cryogenic tunnel were made with a shearing interferometer. The measurement results provide a basis for estimating the optical parameters of the laser angle sensor. Experimental and analytical information was generated on model windows to cover the reflector. A two axis breadboard was assembled to evaluate different measurement concepts. The measurement results were used to develop a preliminary design of a laser angle sensor. Schematics and expected performance specifications are included.

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

1980-01-01

127

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

USGS Publications Warehouse

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.

Hanna, M.S.; Chang, T.

1990-01-01

128

Wetting and Contact Angle  

NSDL National Science Digital Library

Students are presented with the concepts of wetting and contact angle. They are also introduced to the distinction between hydrophobic and hydrophilic surfaces. Students observe how different surfaces are used to maintain visibility under different conditions.

NSF CAREER Award and RET Program, Mechanical Engineering and Material Science,

129

Tri-bimaximal-Cabibbo mixing  

NASA Astrophysics Data System (ADS)

Recent measurements of the lepton mixing angle ?13 by the Daya Bay and RENO reactor experiments are consistent with the relationship ?13??C/?{2} where ?C is the Cabibbo angle. We propose Tri-Bimaximal-Cabibbo (TBC) mixing, in which sin ?13=sin ?C/?{2}, sin ?23=1/?{2} and sin ?12=1/?{3}. We show that TBC mixing may arise approximately from tri-bimaximal, bi-maximal or Golden Ratio neutrino mixing, together with Cabibbo-like charged lepton corrections arising from a Pati-Salam gauge group, leading to predictions for the CP-violating phase of ??±90°,±180°,±75°, respectively. Alternatively, we show that TBC neutrino mixing may realised accurately using the type I see-saw mechanism with partially constrained sequential right-handed neutrino dominance, assuming a family symmetry which is broken by a flavon common to quarks and neutrinos.

King, S. F.

2012-11-01

130

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

131

'Magic Angle Precession'  

SciTech Connect

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.

Binder, Bernd [Quanics.com, Germany, 88679 Salem, P.O. Box 1247 (United States)], E-mail: binder@quanics.com

2008-01-21

132

Mixed cryoglobulinemia  

PubMed Central

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

Ferri, Clodoveo

2008-01-01

133

State and unknown inputs estimation via a proportional integral observer with unknown  

E-print Network

State and unknown inputs estimation via a proportional integral observer with unknown inputs Atef and iden- tification in noisy systems. A proportionnal integral observer with un- known inputs is used in order to estimate the state and the faults which are assumed as unknown inputs. The noise's effect

Paris-Sud XI, Université de

134

Exploration of unknown mechanical assemblies through manipulation  

NASA Technical Reports Server (NTRS)

If robots must function in unstructured environments, they must also possess the ability to acquire information and construct appropriate models of the unknown environment. This paper addresses the automatic generation of kinematic models of unknown objects with movable parts in the environment. If the relative motion between moving parts must be observed and characterized, vision alone cannot suffice. An approach in which manipulation is used with vision for sensing is better suited to the task of determining kinematic properties. In this paper, algorithms for constructing models of unknown mechanical assemblies and characterizing the relative motion are developed. Results of a simulation are described to demonstrate the role of manipulation in such an endeavor.

Kumar, Vijay R.; Yun, Xiaoping; Bajcsy, Ruzena

1990-01-01

135

Unknown, placeholder, or variable: what is x?  

NASA Astrophysics Data System (ADS)

One of the most significant steps in learning algebra is understanding the change in the role of letters in mathematical expressions from unknowns to variables. We describe the historical development of this change in usage, starting with the ancient use of mathematical unknowns, detailing several important changes in practice that allowed for the idea of the placeholder, the birth of symbolic algebra, and the development of the variable. Focusing on these changes in practice, we interpret some classroom examples of 8th-grade students who interpret letters in terms of their experience with unknowns, rather than in terms of variables, to the confusion and dismay of the teachers. We also discuss how particular curricular and pedagogical treatments can support student learning by deliberately focusing on these changes in practice in the transition from unknowns to variables in the middle grades.

Ely, Robert; Adams, Anne E.

2012-03-01

136

Quantum circuits cannot control unknown operations  

NASA Astrophysics Data System (ADS)

One of the essential building blocks of classical computer programs is the ‘if’ clause, which executes a subroutine depending on the value of a control variable. Similarly, several quantum algorithms rely on applying a unitary operation conditioned on the state of a control system. Here we show that this control cannot be performed by a quantum circuit if the unitary is completely unknown. The task remains impossible even if we allow the control to be done modulo a global phase. However, this no-go theorem does not prevent implementing quantum control of unknown unitaries in practice, as any physical implementation of an unknown unitary provides additional information that makes the control possible. We then argue that one should extend the quantum circuit formalism to capture this possibility in a straightforward way. This is done by allowing unknown unitaries to be applied to subspaces and not only to subsystems.

Araújo, Mateus; Feix, Adrien; Costa, Fabio; Brukner, ?aslav

2014-09-01

137

General Information about Carcinoma of Unknown Primary  

MedlinePLUS

... chemotherapy is the use of two or more anticancer drugs. Hormone therapy Hormone therapy is a cancer ... Internal radiation therapy . Chemotherapy with one or more anticancer drugs . A clinical trial . Recurrent Carcinoma of Unknown ...

138

Taxicab Angles and Trigonometry  

E-print Network

A natural analogue to angles and trigonometry is developed in taxicab geometry. This structure is then analyzed to see which, if any, congruent triangle relations hold. A nice application involving the use of parallax to determine the exact (taxicab) distance to an object is also discussed.

Thompson, Kevin

2011-01-01

139

Casting and Angling.  

ERIC Educational Resources Information Center

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…

Smith, Julian W.

140

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

NASA Technical Reports Server (NTRS)

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.

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

2007-01-01

141

Ejs Brewsterâs Angle Model  

NSDL National Science Digital Library

The Ejs Brewsterâs Angle model displays the electric field of an electromagnetic wave incident on a change of index of refraction. The simulation allows an arbitrarily linearly (in parallel and perpendicular components) polarized wave to encounter the change of index of refraction. The initial electric field and incidence angle change of index of refraction can all be changed via sliders. You can modify this simulation if you have Ejs installed by right-clicking within the plot and selecting âOpen Ejs Modelâ from the pop-up menu item. Ejs Brewsterâs Angle model was created using the Easy Java Simulations (Ejs) modeling tool. It is distributed as a ready-to-run (compiled) Java archive. Double clicking the ejs_ehu_waves_brewster.jar file will run the program if Java is installed. Ejs is a part of the Open Source Physics Project and is designed to make it easier to access, modify, and generate computer models. Additional Ejs models for wave optics are available. They can be found by searching ComPADRE for Open Source Physics, OSP, or Ejs.

Aguirregabiria, Juan

2008-08-20

142

Balance-Solving for Unknowns, Part One  

NSDL National Science Digital Library

This Sketchpad activity, which opens on Geometer's Sketchpad as well as on iOS with Sketchbook Explorer (cataloged separately), is the first of three balance activities in which students develop intuitive strategies for writing and solving simple algebraic equations. Students drag a shape whose numerical value is known onto one side of a scale and then drag copies of a shape with an unknown numerical value to the other side of the scale until both sides are level. Students then solve the equation to determine the value of the unknown shape. A five-minute movie provides detailed instructions and downloadable PDF of teacher notes and student worksheets are also included.

Scher, Daniel

2013-01-01

143

Weak cloning of an unknown quantum state  

E-print Network

The impossibility to clone an unknown quantum state is a powerful principle to understand the nature of quantum mechanics, especially within the context of quantum computing and quantum information. This principle has been generalized to quantitative statements as to what extent imperfect cloning is possible. We delineate an aspect of the border between the possible and the impossible concerning quantum cloning, by putting forward an entanglement-assisted scheme for simulating perfect cloning in the context of weak measurements. This phenomenon we call weak cloning of an unknown quantum state.

Erik Sjöqvist; Johan Åberg

2006-05-22

144

Protocol for Counterfactually Transporting an Unknown Qubit  

E-print Network

Quantum teleportation circumvents the uncertainty principle using dual channels: a quantum one consisting of previously-shared entanglement, and a classical one, together allowing the disembodied transport of an unknown quantum state over distance. It has recently been shown that a classical bit can be counterfactually communicated between two parties in empty space, "Alice" and "Bob". Here, using a novel "dual" version of the chained quantum Zeno effect, we propose a protocol for transporting an unknown qubit counterfactually, that is without any physical particles travelling between Alice and Bob - no classical channel and no previously-shared entanglement.

Hatim Salih

2014-04-14

145

Vector meson {omega}-{phi} mixing and their form factors in the light-cone quark model  

SciTech Connect

The vector meson {omega}-{phi} mixing is studied in two alternative scenarios with different numbers of mixing angles, i.e., the one-mixing-angle scenario and the two-mixing-angle scenario, in both the octet-singlet mixing scheme and the quark flavor mixing scheme. Concerning the reproduction of experimental data and the Q{sup 2} behavior of transition form factors, the one-mixing-angle scenario in the quark flavor scheme performs better than that in the octet-singlet scheme, while the two-mixing-angle scenario works well for both mixing schemes. The difference between the two mixing angles in the octet-singlet scheme is bigger than that in the quark flavor scheme.

Qian Wen; Ma Boqiang [School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871 (China)

2008-10-01

146

40. CENTRAL PAVILION OF WEST FACADESLIGHTLY ANGLED, FRONTAL, NORMAL ANGLE ...  

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

40. CENTRAL PAVILION OF WEST FACADE--SLIGHTLY ANGLED, FRONTAL, NORMAL ANGLE Copy photograph of photogrammetric plate LC-HABS-FS13-B-1974-839R. - St. Mary's Seminary, 600 North Paca Street, Baltimore, Independent City, MD

147

Alcohol Unknown (NMR)/Synthesis of Aspirin 27 Alcohol Unknowns and Aspirin  

E-print Network

Alcohol Unknown (NMR)/Synthesis of Aspirin 27 Alcohol Unknowns and Aspirin Part 1: Microscale Synthesis of Aspirin Intro Aspirin is among the most versatile drugs known to medicine, and is among the oldest (the first known use of an aspirin-like preparation can be traced to ancient Greece

Jasperse, Craig P.

148

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

149

Multi-resource Allocation with Unknown Participants  

E-print Network

philosophers problem. We apply this problem to systems where participants (here called clients) are unknown. We to handle client dynamicity. Extend our solution to handle larger resource requests is let as a future work. I. INTRODUCTION Research in distributed resource sharing problems (both in static and dynamic

Devismes, Stéphane

150

Fever of unknown origin, with a twist  

PubMed Central

The authors present a case of an 81-year-old man with fever of unknown origin. The case report is illustrated with the images which clarified the diagnosis in this challenging case. The cardiac MR images were of critical importance in arriving at a diagnosis of aortic root mycotic pseudoaneurysm with rupture into the right ventricle. PMID:23345531

Lobo, Ronstan; Meany, Brendan; O'Hanlon, Rory; Kiernan, Thomas John

2013-01-01

151

X-ray Analysis of Unknown Minerals  

NSDL National Science Digital Library

In this exercise, students use X-ray analysis to identify unknown minerals. They are given two samples to grind up and X-ray, using Jade to identify them. Once the minerals are identified, students make a spreadsheet and do a series of calculations.

Dexter Perkins

152

Adapting to Unknown Smoothness via Wavelet Shrinkage  

Microsoft Academic Search

We attempt to recover a function of unknown smoothness from noisy sampled data. We introduce a procedure, SureShrink, that suppresses noise by thresholding the empirical wavelet coefficients. The thresholding is adaptive: A threshold level is assigned to each dyadic resolution level by the principle of minimizing the Stein unbiased estimate of risk (Sure) for threshold estimates. The computational effort of

David L. Donoho; Iain M. Johnstone

1995-01-01

153

Searching for the unknown in Particle Physics  

E-print Network

Searching for the unknown in Particle Physics: past discoveries and present challenges QuarkNet 2002, FSU Laura Reina #12; Outline #15; What is Particle Physics? #15; The origins of Particle Physics and future experimental facilities ! example: the search for the Higgs particle #12; What is Particle Physics

McQuade, D. Tyler

154

Interval Analysis for Unknown Dependencies and Genetic  

E-print Network

Interactions and Market Power Final Project Report Power Systems Engineering Research Center A National Science Research Center Interval Analysis for Unknown Dependencies and Genetic Algorithm Emulation of Markets;Preface The Power Systems Engineering Research Center sponsored the research project titled "Market

155

Adaptive control of plants with unknown hystereses  

Microsoft Academic Search

For a system with hysteresis, the authors present a parameterized hysteresis model and develop a hysteresis inverse. The authors then design adaptive controllers with an adaptive hysteresis inverse for plants with unknown hysteresis. A new adaptive controller structure is introduced which is capable of achieving a linear parameterization and a linear error model in the presence of a hysteresis nonlinearity.

Gang Tao; Petar V. KokotoviC

1995-01-01

156

Jaundice of unknown origin: Remember zoonoses!  

PubMed

Zoonotic diseases are randomly remembered in the differential diagnosis of jaundice of unknown origin. We present four characteristic cases of jaundice attributed to brucellosis and Coxiella burnetii infection and discuss the various pathogenetic pathways implicated in each case. We present a brief review of the relevant literature and, in an era of increasing subspecialization, underline the importance of viewing the "whole picture". PMID:16635923

Pappas, Georgios; Christou, Leonidas; Akritidis, Nikolaos K; Tsianos, Epameinondas V

2006-04-01

157

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

PubMed

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

Budko, A A; Nazartsev, B I

2012-07-01

158

Using Chemical Change to Identify an Unknown  

NSDL National Science Digital Library

In this activity, learners will develop a method to test five similar-looking powders (baking soda, baking powder, cream of tartar, detergent, and cornstarch) with four test liquids (water, vinegar, iodine solution, red cabbage solution). They will use the characteristic set of reactions for each powder to identify an unknown powder, which is one of the five powders they have tested.

Kessler, James H.; Galvan, Patricia M.

2007-01-01

159

Wide Angle Movie  

NASA Technical Reports Server (NTRS)

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.

1999-01-01

160

48 CFR 47.305-5 - Destination unknown.  

Code of Federal Regulations, 2013 CFR

...47.305-5 Destination unknown. (a)(1) When destinations are unknown, solicitations shall be f...supplies to be acquired is not known, but the general location...52.247-49, Destination Unknown, when destinations are...

2013-10-01

161

48 CFR 52.247-62 - Specific Quantities Unknown.  

Code of Federal Regulations, 2011 CFR

...false Specific Quantities Unknown. 52.247-62 Section...247-62 Specific Quantities Unknown. As prescribed in 47...shipments will be made are known, but the specific quantity...contract. Specific Quantities Unknown (APR 1984) (a) For...

2011-10-01

162

48 CFR 47.305-5 - Destination unknown.  

Code of Federal Regulations, 2010 CFR

...47.305-5 Destination unknown. (a)(1) When destinations are unknown, solicitations shall be f...supplies to be acquired is not known, but the general location...52.247-49, Destination Unknown, when destinations are...

2010-10-01

163

48 CFR 47.305-5 - Destination unknown.  

Code of Federal Regulations, 2011 CFR

...47.305-5 Destination unknown. (a)(1) When destinations are unknown, solicitations shall be f...supplies to be acquired is not known, but the general location...52.247-49, Destination Unknown, when destinations are...

2011-10-01

164

48 CFR 52.247-62 - Specific Quantities Unknown.  

Code of Federal Regulations, 2010 CFR

...false Specific Quantities Unknown. 52.247-62 Section...247-62 Specific Quantities Unknown. As prescribed in 47...shipments will be made are known, but the specific quantity...contract. Specific Quantities Unknown (APR 1984) (a) For...

2010-10-01

165

48 CFR 52.247-62 - Specific Quantities Unknown.  

Code of Federal Regulations, 2012 CFR

...false Specific Quantities Unknown. 52.247-62 Section...247-62 Specific Quantities Unknown. As prescribed in 47...shipments will be made are known, but the specific quantity...contract. Specific Quantities Unknown (APR 1984) (a) For...

2012-10-01

166

48 CFR 52.247-62 - Specific Quantities Unknown.  

Code of Federal Regulations, 2013 CFR

...false Specific Quantities Unknown. 52.247-62 Section...247-62 Specific Quantities Unknown. As prescribed in 47...shipments will be made are known, but the specific quantity...contract. Specific Quantities Unknown (APR 1984) (a) For...

2013-10-01

167

48 CFR 47.305-5 - Destination unknown.  

Code of Federal Regulations, 2012 CFR

...47.305-5 Destination unknown. (a)(1) When destinations are unknown, solicitations shall be f...supplies to be acquired is not known, but the general location...52.247-49, Destination Unknown, when destinations are...

2012-10-01

168

Shapes and Angles  

NSDL National Science Digital Library

In this activity (page 7 of PDF), learners will identify the general two-dimensional geometric shape of the uppermost cross section of an impact crater. They will also draw connections between the general two-dimensional geometric shape of an impact crater and the projectile's angle of impact. There are two versions of this activity: Challenge, where students construct a launcher and create their own craters; and Non-Challenge where students analyze pictures of craters. The Moon Math: Craters! guide follows a 5E approach, applying concepts of geometry, modeling, data analysis to the NASA lunar spacecraft mission, LCROSS.

NASA

2012-05-08

169

The costovertebral angle.  

PubMed

Because the anatomy of the costovertebral angle is complex and often unfamiliar to the operating thoracic surgeon, surgical procedures performed in that area must be performed by a surgical team rather than by individual surgeons, and such a team usually includes either an orthopedic surgeon or a neurosurgeon. This is the case, for example, of Pancoast's tumors invading the roots of the brachial plexus or the spine itself where the help of an orthopedic surgeon is invaluable not only to achieve a complete resection but also to prevent catastrophic complications. PMID:18271164

Vallières, Eric

2007-11-01

170

Angles and Area  

NSDL National Science Digital Library

In this activity (page 10 of PDF), learners approximate the area of the uppermost cross section of an impact crater using a variety of square grids. They conclude which angle of impact results in the greatest area. There are two versions of this activity: Challenge, where students construct a launcher and create their own craters; and Non-Challenge where students analyze pictures of craters. Includes a pre-lesson activity (p54). The Moon Math: Craters! guide follows a 5E approach, applying concepts of geometry, modeling, data analysis to the NASA lunar spacecraft mission, LCROSS.

Nasa

2012-05-08

171

Variable angle correlation spectroscopy  

SciTech Connect

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.

Lee, Y.K. [Univ. of California, Berkeley, CA (United States)]|[Lawrence Berkeley Lab., CA (United States). Chemical Biodynamics Div.

1994-05-01

172

Angle performance on optima MDxt  

NASA Astrophysics Data System (ADS)

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° (1?). 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° (1?).

David, Jonathan; Kamenitsa, Dennis

2012-11-01

173

Angle performance on optima MDxt  

SciTech Connect

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}).

David, Jonathan; Kamenitsa, Dennis [Axcelis Technologies, Inc., 108 Cherry Hill Dr, Beverly, MA 01915 (United States)

2012-11-06

174

Triangles: Finding Interior Angle Measures  

NSDL National Science Digital Library

In this lesson plan, students will start with a hands-on activity and then experiment with a GeoGebra-based computer model to investigate and discover the Triangle Angle Sum Theorem. Then they will use the Triangle Angle Sum Theorem to write and solve equations and find missing angle measures in a variety of examples.

2012-11-25

175

Management of neuroendocrine tumors of unknown origin.  

PubMed

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

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

2011-12-01

176

Noma: an "infectious" disease of unknown aetiology.  

PubMed

Noma (cancrum oris) is a devastating gangrenous disease that leads to severe tissue destruction in the face and is associated with high morbidity and mortality. It is seen almost exclusively in young children living in remote areas of less developed countries, particularly in Africa. The exact prevalence of the disease is unknown, but a conservative estimate is that 770000 people are currently affected by noma sequelae. The cause remains unknown, but a combination of several elements of a plausible aetiology has been identified: malnutrition, a compromised immune system, poor oral hygiene and a lesion of the gingival mucosal barrier, and an unidentified bacterial factor acting as a trigger for the disease. This review discusses the epidemiology, clinical features, current understanding of the pathophysiology, and treatment of the acute phase and sequelae requiring reconstructive surgery. Noma may be preventable if recognised at an early stage. Further research is needed to identify more exactly the causative agents. PMID:12837347

Baratti-Mayer, Denise; Pittet, Brigitte; Montandon, Denys; Bolivar, Ignacio; Bornand, Jacques-Etienne; Hugonnet, Stéphane; Jaquinet, Alexandre; Schrenzel, Jacques; Pittet, Didier

2003-07-01

177

Venus atmospheric circulation - Known and unknown  

NASA Technical Reports Server (NTRS)

Temporally and longitudinally averaged circulation determined from images acquired since 1979 from the Pioneer Venus orbiter has shown significant changes in th meridional flow. The solar-locked structure in the zonal and meridional components of the cloud motions is also observed to change with time. Mechanisms for such changes remain unknown, although planetary waves and a slight modulation of the cloud level have been suggested as explanations. Decomposition of the solar-locked structure into diurnal and semidiurnal components suggests that nightside zonal flow may be 10-20 m/s faster than the average dayside flow. Many aspects of the circulation remain unknown, including the horizontal and vertical structure on the nightside and at levels higher and lower than the UV cloud features, sources, and sinks of UV absorbers, and meridional transports of heat, momentum, and water vapor at different levels.

Limaye, Sanjay Shridhar

1990-01-01

178

Heterodyne Interferometer Angle Metrology  

NASA Technical Reports Server (NTRS)

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.

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

2010-01-01

179

Sun angle calculator  

NASA Technical Reports Server (NTRS)

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.

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

1976-01-01

180

Narrow Angle movie  

NASA Technical Reports Server (NTRS)

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.

1999-01-01

181

Advanced mixing nozzle concepts for COIL  

NASA Astrophysics Data System (ADS)

An advanced mixing nozzle concept has been developed for high chemical efficiency, high pressure recovery chemical oxygen-iodine laser applications. This concept incorporates the use of mixing tabs mounted at the nozzle exit plane for generating structured streamwise vorticity for mixing enhancement. The tab vortex generators produce strong streamwise vortices for mixing entrainment of highly compressible mixing layers. The optimal tab configuration, dimension, ramp angle relative to the flow direction, and tab spacing were determined by CFD analyses. The CFD computations show the entrainment and mixing produced by these mixing tabs are very efficient. The predicted mixing effectiveness of this nozzle configuration has been validated by experimental Pitot pressure scans of a three- blade nozzle hardware assembly.

Yang, Tientsai T.; Hsia, Y. C.; Moon, L. F.; Dickerson, Robert A.

2000-05-01

182

The Weak Mixing Matrix  

NASA Astrophysics Data System (ADS)

We show that the Weak Mixing Matrix, ( *20c Uud & Uus & Uub Ucd & Ucs & Ucb Utd & Uts & Utb ) , is not equal to the product of rotations, and in particular, it is not equal to the KM, or the PDG Matrices. At most, we may find an approximating matrix for the Weak Mixing Matrix that is based on the rotation matrices. We show that one such approximating matrix for the Real part of the Weak Mixing Matrix is ( *20c ?C?C^3 & ?C?C^3 & ^3 ?C?C^2 - ?C?C^2 & ?C?C^2 & ^2 ?C - ?C^3 ?C & - ?C?C^3 ^2 ?C & ?C^2 ?C^3 ), where ?C is the Cabbibo angle. The approximating matrix depends on ?C alone, and predicts the Real part of the Weak Mixing Matrix to a high degree of accuracy. We establish, with a Chi-Squared Goodness-of- Fitness-Test, that our approximating matrix can be used with extremely high level of statistical confidence.

Dannon, Vic; Levine, Robert

2009-10-01

183

Fast and Complete Unknown Tag Identification in Large  

E-print Network

tags in large RFID systems Unknown tag Known tag Reader #12;7 Motivation A continuous scanning scheme singleton expected collision known tags unknown tags #12;12 BUIP: Basic Unknown tag Identification Protocol expected collision known tags unknown tags #12;13 Known Tag Acknowledgment Not all known tags can

Xiao, Bin

184

Assigning labels in unknown anonymous Pierre Fraigniaud \\Lambda  

E-print Network

of an unknown network [6, 10]. Known characterizations of the attainable and unattainable tasks in unknownAssigning labels in unknown anonymous networks Pierre Fraigniaud \\Lambda (pierre@lri.fr) Andrzej to nodes of an unknown anonymous network. A priori, nodes do not have any identities (anonymous network

Fondements et Applications, Université Paris 7

185

Interval estimation for systems with unknown input delays and gains  

E-print Network

to the systems with unknown input delay and known parameters. The present work constitutes an extension1 Interval estimation for systems with unknown input delays and gains Si Chen, Denis Efimov, Jean-Pierre Richard, Zongxia Jiao Abstract--The estimation problem of a system with unknown time-delay and unknown

Paris-Sud XI, Université de

186

Verifying Heap-Manipulating Programs with Unknown Procedure Calls  

E-print Network

prog contains calls to some un- known procedure unknown, we infer a specification mspecu for unknownVerifying Heap-Manipulating Programs with Unknown Procedure Calls Shengchao Qin1 , Chenguang Luo2 to unknown pro- cedures is a practical problem, because in many scenarios not all codes of programs

Qin, Shengchao

187

Magnetic Unmixing: From the Known to the Unknown (Invited)  

NASA Astrophysics Data System (ADS)

Unravelling mixed magnetic mineral assemblages is fundamental to environmental magnetic interpretation. Within natural settings, mixtures of different magnetic mineral types and particle sizes can provide important quantitative information concerning combinations of processes that influence the local, or even global, environment. An ability to identify, characterize and quantify environmentally relevant fractions of a magnetic mineral assemblage is therefore essential. Unmixing strategies aim to mathematically separate the convolved information carried by magnetic mineral assemblages into environmentally meaningful parts. An ability to identify such characteristic components allows links to be identified between the composition of the magnetic mineral assemblage and specific environmental processes. Environmental magnetists now have access to a range of numerical strategies that approach the task of unmixing from different angles. Despite the wide use of unmixing tools in the environmental magnetic community, more advanced techniques that can handle diverse data types still need to be developed. We will show how recently developed forward and inverse unmixing methods can be applied to a variety of measurements, for example, isothermal remanent magnetization acquisition curves, hysteresis loops, and first-order reversal curve distributions. It is also important to consider the consistency between mixing models that employ different strategies and types of measurements. An often undiscussed aspect of unmixing is non-uniqueness. Nearly all of our existing unmixing techniques suffer from non-uniqueness and some of the more common pitfalls (and ways to avoid them) will be discussed. Looking forward, we will consider what the future holds for numerical unmixing and the key challenges we face.

Heslop, D.; Roberts, A. P.

2013-12-01

188

Color Mixing  

NSDL National Science Digital Library

This is an online activity where learners can virtually mix different colors of light or paint (you can switch between them) and see how the colors combine. It demonstrates how millions of colors are created on computer monitors and TVs, and in art and printing. Learners can try to match a given target color ("Mix to Match"), or simply play around with mixtures ("Mix for Fun"). Background information explains how light is additive (more colors tends towards white), whereas paint absorbs color and is subtractive (more colors tends towards black). There's also information about how the human eye works.

Industry, Oregon M.

2002-01-01

189

Generalization of the Euler Angles  

NASA Technical Reports Server (NTRS)

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.

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

2002-01-01

190

Fidelities for transformations of unknown quantum states  

SciTech Connect

We present a general theoretical formalism to compute the fidelity of transformations of unknown quantum states, and we apply our theory to Gaussian transformations of continuous variable quantum systems. For the case of a Gaussian distribution of displaced coherent states, the theory is readily tractable by a covariance matrix formalism, and a wider class of states, exemplified by Fock states, can be treated efficiently by the Wigner function formalism. Given the distribution of input states, the optimum feedback gain is identified, and analytical results for the fidelities are presented for recently implemented teleportation and memory storage protocols for continuous variables.

Madsen, Lars Bojer [Department of Physics and Astronomy, University of Aarhus, 8000 Aarhus C (Denmark); Moelmer, Klaus [Department of Physics and Astronomy, University of Aarhus, 8000 Aarhus C (Denmark); Department of Physics and Astronomy, QUANTOP-Danish National Research Foundation Center for Quantum Optics, University of Aarhus, 8000 Aarhus C (Denmark)

2006-03-15

191

A small-angle scatterometer  

Microsoft Academic Search

The design, analysis, and performance of a small-angle scatterometer are presented. A dye-cell Gaussian apodized aperture is utilized to reduce the small-angle diffraction background, so that the system scatter becomes the dominant noise in the instrument beam profile. The geometrical aberrations are graphically shown to have no significant effect on the higher-order diffraction rings of the beam profile. Small-angle scattered

Steven J. Wein; William L. Wolfe

1989-01-01

192

A model of quark and lepton mixing  

NASA Astrophysics Data System (ADS)

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 ?C ? 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 ? l = 260° ± 5°.

King, Stephen F.

2014-01-01

193

8.G Find the Angle  

NSDL National Science Digital Library

This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important asects of the task and its potential use. Here are the first few lines of the commentary for this task: In triangle $\\Delta ABC$, point $M$ is the point of intersection of the bisectors of angles $\\angle BAC$, $\\angle ABC$, and $\\angle ACB$. The measure o...

194

Lepton Flavor Mixing and CP Symmetry  

E-print Network

The strategy of constraining the lepton flavor mixing from remnant CP symmetry is investigated in a rather general way. The neutrino mass matrix generally admits four remnant CP transformations which can be derived from the measured lepton mixing matrix in the charged lepton diagonal basis. Conversely, the lepton mixing matrix can be reconstructed from the postulated remnant CP transformations. All mixing angles and CP violating phases can be completely determined by the full set of remnant CP transformations or three of them. When one or two remnant CP transformations are preserved, the resulting lepton mixing matrix would depend on three real parameters or one real parameter respectively in addition to the parameters characterizing the remnant CP, and the concrete form of the mixing matrix is presented. The phenomenological predictions for the mixing parameters are discussed. The conditions leading to vanishing or maximal Dirac CP violation are studied.

Chen, Peng; Ding, Gui-Jun

2014-01-01

195

Lepton Flavor Mixing and CP Symmetry  

E-print Network

The strategy of constraining the lepton flavor mixing from remnant CP symmetry is investigated in a rather general way. The neutrino mass matrix generally admits four remnant CP transformations which can be derived from the measured lepton mixing matrix in the charged lepton diagonal basis. Conversely, the lepton mixing matrix can be reconstructed from the postulated remnant CP transformations. All mixing angles and CP violating phases can be completely determined by the full set of remnant CP transformations or three of them. When one or two remnant CP transformations are preserved, the resulting lepton mixing matrix would depend on three real parameters or one real parameter respectively in addition to the parameters characterizing the remnant CP, and the concrete form of the mixing matrix is presented. The phenomenological predictions for the mixing parameters are discussed. The conditions leading to vanishing or maximal Dirac CP violation are studied.

Peng Chen; Cai-Chang Li; Gui-Jun Ding

2014-12-29

196

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

NASA Astrophysics Data System (ADS)

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.

Phanomchoeng, Gridsada

197

Spinning angle optical calibration apparatus  

DOEpatents

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.

Beer, Stephen K. (Morgantown, WV); Pratt, II, Harold R. (Morgantown, WV)

1991-01-01

198

The granular mixing in a slurry rotating drum  

NASA Astrophysics Data System (ADS)

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.

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

2009-12-01

199

The granular mixing in a slurry rotating drum  

NASA Astrophysics Data System (ADS)

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.

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

2010-03-01

200

Autonomous exploration and mapping of unknown environments  

NASA Astrophysics Data System (ADS)

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.

Owens, Jason; Osteen, Phil; Fields, MaryAnne

2012-06-01

201

[Granulomatous hepatitis and fever of unknown origin].  

PubMed

In this paper, we review the etiological, clinical and evolutive aspects of patients with fever of unknown origin (FUO) whose hepatic biopsy showed the presence of granulomas (GH). This is retrospective study covering a period of 10 years (1982-1991). The clinical records of all the patients hospitalized due to FUO (n = 71) and of all those in whose hepatic biopsy the presence of GH (n = 70) was documentated, were reviewed. Thirty patients fulfilled both criteria: FUO + GH. In our environment, Q Fever is the most frequent cause of FUO and GH in patients without infection by the HIV. On the contrary, in patients infected by HIV, the most frequent etiology is tuberculosis. PMID:7981360

Viladés, C; Ferré, R; Martín-Urda, A; Vidal, F; Mayayo, E; Richart, C

1994-07-01

202

Multiple sensor fusion under unknown distributions  

SciTech Connect

In a system of N sensors, the sensor {ital S{sub i}}, i = 1, 2 ..., N, outputs {ital Y}{sup (i)} {element_of} {Re}, according to an unknown probability distribution P{sub Y{sup (i)}}{vert_bar}X, corresponding to input X {element_of} {Re}. A training {ital n}-sample (X{sub 1}, Y{sub 1}), (X{sub 2},Y{sub 2}), ..., (X{sub n},Y{sub n}) is given where {ital Y{sub i}} = (Y{sub i}{sup (1)},Y{sub i}{sup (2)},...,Y{sub i}{sup (N)}) such that Y{sub i}{sup (j)} is the output of S{sub j} in response to input X{sub i}. The problem is to design a fusion rule expected square error: I({ital f}) = {integral}[X - f (Y)]{sup 2}dP{sub y{vert_bar}X}dPx, where Y=(Y{sup (1)}, Y{sup (2)},..., Y({sup N)}),is minimized over a family of functions {ital F}. Let f{sup *} minimize I(.) over {ital F}; in general, f{sup *} cannot be computed since the underlying distributions are unknown. We consider sufficient conditions based on smoothness and/or combinatorial dimensions of {ital F} to ensure that an estimator {cflx {ital f}} satisfies P[I({cflx {ital f}}) - I(f{sup *}) > {epsilon}] < {delta} for any {epsilon} > 0 and 0 < {delta} < 1. We present two methods for computing {cflx {ital f}} based on feedforward sigmoidal networks and Nadaraya-Watson estimator. Design and performance characteristics of the two methods are discussed, based both on theoretical and simulation results.

Rao, N.S.V.

1996-10-01

203

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

204

68. Water Delivery Pipes for Menzie Cone, date unknown Historic ...  

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

68. Water Delivery Pipes for Menzie Cone, 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

205

55. East Side of Breaker, date unknown Historic Photograph, Photographer ...  

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

55. East Side of Breaker, 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

206

56. Rock Belt Line, Transfer Building, date unknown Historic Photograph, ...  

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

56. Rock Belt Line, Transfer Building, 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

207

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

208

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

209

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

210

5 CFR 1651.16 - Missing and unknown beneficiaries.  

Code of Federal Regulations, 2011 CFR

...2011-01-01 false Missing and unknown beneficiaries. 1651...1651.16 Missing and unknown beneficiaries. (a...1651.10 (b) Payment to known beneficiaries. If all potential beneficiaries are known but one or more...

2011-01-01

211

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

212

5 CFR 1651.16 - Missing and unknown beneficiaries.  

Code of Federal Regulations, 2010 CFR

...2010-01-01 false Missing and unknown beneficiaries. 1651...1651.16 Missing and unknown beneficiaries. (a...1651.10 (b) Payment to known beneficiaries. If all potential beneficiaries are known but one or more...

2010-01-01

213

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

214

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

215

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

216

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

217

1. Historic American Buildings Survey Photographer Unknown. Furnished by Mrs ...  

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

1. Historic American Buildings Survey Photographer Unknown. Furnished by Mrs Mecia, Tombstone, Arizona. Date Unknown GENERAL VIEW MAIN CHURCH (SOUTHEAST ELEVATION). - San Xavier del Bac Mission, Mission Road, Tucson, Pima County, AZ

218

5 CFR 1651.16 - Missing and unknown beneficiaries.  

Code of Federal Regulations, 2012 CFR

...2012-01-01 false Missing and unknown beneficiaries. 1651...1651.16 Missing and unknown beneficiaries. (a...1651.10 (b) Payment to known beneficiaries. If all potential beneficiaries are known but one or more...

2012-01-01

219

5 CFR 1651.16 - Missing and unknown beneficiaries.  

Code of Federal Regulations, 2014 CFR

...2014-01-01 false Missing and unknown beneficiaries. 1651...1651.16 Missing and unknown beneficiaries. (a...1651.10 (b) Payment to known beneficiaries. If all potential beneficiaries are known but one or more...

2014-01-01

220

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

221

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

222

5 CFR 1651.16 - Missing and unknown beneficiaries.  

Code of Federal Regulations, 2013 CFR

...2013-01-01 false Missing and unknown beneficiaries. 1651...1651.16 Missing and unknown beneficiaries. (a...1651.10 (b) Payment to known beneficiaries. If all potential beneficiaries are known but one or more...

2013-01-01

223

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

224

Neutrino mass, mixing and discrete symmetries  

NASA Astrophysics Data System (ADS)

Status of the discrete symmetry approach to explanation of the lepton masses and mixing is summarized in view of recent experimental results, in particular, establishing relatively large 1-3 mixing. The lepton mixing can originate from breaking of discrete flavor symmetry Gf to different residual symmetries Gl and Gv in the charged lepton and neutrino sectors. In this framework the symmetry group condition has been derived which allows to get relations between the lepton mixing elements immediately without explicit model building. The condition has been applied to different residual neutrino symmetries Gv. For generic (mass independent) Gv = Z2 the condition leads to two relations between the mixing parameters and fixes one column of the mixing matrix. In the case of Gv = Z2 × Z2 the condition fixes the mixing matrix completely. The non-generic (mass spectrum dependent) Gv lead to relations which include mixing angles, neutrino masses and Majorana phases. The symmetries Gl, Gv, Gf are identified which lead to the experimentally observed values of the mixing angles and allow to predict the CP phase.

Smirnov, Alexei Y.

2013-07-01

225

Influence Analysis in Linear Mixed Models  

Microsoft Academic Search

This paper is devoted to discussion case-deletion methodologies of influence assessments in linear mixed models (LMM) for longitudinal data. The paper presents two case-deletion influence measures to detect the influential individuals\\u000a in the context of LMM with unknown covariance structures. These two measures can be easily used to real data analysis.

Yu Fei; Jianxin Pan

226

Grand unified textures for neutrino and quark mixings  

Microsoft Academic Search

The atmospheric neutrino data imply large mixing between the numu and nutau states, theta23 = (45+\\/-12)°, while the MSW solution to the solar neutrino problem needs very small mixing angle theta12 = (2+\\/-1)°. In the quark sector the situation is rather opposite -- the 23 mixing is tiny, theta23 simeq 2°, versus reasonable 12 mixing, theta12 simeq 13°. We show

Zurab Berezhiani; Anna Rossi

1999-01-01

227

Angle closure in younger patients.  

PubMed Central

PURPOSE: Angle-closure glaucoma is rare in children and young adults. Only scattered cases associated with specific clinical entities have been reported. We evaluated the findings in patients in our database aged 40 or younger with angle closure. METHODS: Our database was searched for patients with angle closure who were 40 years old or younger. Data recorded included age at initial consultation; age at the time of diagnosis; gender; results of slit-lamp examination, gonioscopy, and ultrasound biomicroscopy (from 1993 onward); clinical diagnosis; and therapy. Patients with previous incisional surgery were excluded, as were patients with anterior chamber proliferative mechanisms leading to angle closure. RESULTS: Sixty-seven patients (49 females, 18 males) met entry criteria. Mean age (+/- SD) at the time of consultation was 34.4 +/- 9.4 years (range, 3-68 years). Diagnoses included plateau iris syndrome (35 patients), iridociliary cysts (8 patients), retinopathy of prematurity (7 patients), uveitis (5 patients), isolated nanophthalmos (3 patients), relative pupillary block (2 patients), Weill-Marchesani syndrome (3 patients), and 1 patient each with Marfan syndrome, miotic-induced angle closure, persistent hyperplastic primary vitreous, and idiopathic lens subluxation. CONCLUSION: The etiology of angle closure in young persons is different from that in the older population and is typically associated with structural or developmental ocular anomalies rather than relative pupillary block. Following laser iridotomy, these eyes should be monitored for recurrent angle closure and the need for additional laser or incisional surgical intervention. PMID:12545694

Chang, Brian M; Liebmann, Jeffrey M; Ritch, Robert

2002-01-01

228

Trajectory planning and environment recognition for unknown environment  

Microsoft Academic Search

This paper deals with robots which can move in an unknown environment. Convenient robots can only move and work in a structured environment. This paper proposes a novel method. In the proposed method, the robot recognizes the unknown environment using a camera. Based on the visual information, robots construct a 3-D map to move and work in an unknown environment.

A. Kato; T. Murakami; K. Ohnishi

2002-01-01

229

Defining the Problem Known Environment Unknown Environment Improvements Reinforcement Learning  

E-print Network

Defining the Problem Known Environment Unknown Environment Improvements Reinforcement Learning Bel¨oningsbaserad Inl¨arning #12;Defining the Problem Known Environment Unknown Environment Improvements 1 Defining Assumptions Central Concepts 2 Known Environment Bellman's Equation Solving Techniques 3 Unknown Environment

Kjellström, Hedvig

230

Proportional Hazards Regression with Unknown Link Function By WEI WANG  

E-print Network

the unknown index by assuming a known link function between the log-hazard function and covariates. A linearProportional Hazards Regression with Unknown Link Function By WEI WANG Harvard Medical School | z} = 0(t) exp (0 T z) , (1) where 0(t) is an unknown baseline hazard function corresponding to z

Wang, Jane-Ling

231

Defining the Problem Known Environment Unknown Environment Improvements Reinforcement Learning  

E-print Network

Defining the Problem Known Environment Unknown Environment Improvements Reinforcement Learning Bel¨oningsbaserad Inl¨arning #12;Defining the Problem Known Environment Unknown Environment Improvements 1 Defining Assumptions Central Concepts 2 Known Environment Bellmans Equation Solving Techniques 3 Unknown Environment

Kjellström, Hedvig

232

Unknown Input Observer Design and Analysis for Networked Control  

E-print Network

and design of dynamic robust observers for linear and nonlinear systems, for systems with known and unknown1 Unknown Input Observer Design and Analysis for Networked Control Systems Ahmad F Taha, Ahmed subject to unknown inputs in a form of disturbances, perturbations, or attacks. The objective

Sun, Dengfeng

233

10 CFR 71.83 - Assumptions as to unknown properties.  

Code of Federal Regulations, 2012 CFR

... false Assumptions as to unknown properties. 71.83 Section...71.83 Assumptions as to unknown properties. When the...material in any package is not known, the licensee shall package the fissile material as if the unknown properties have credible...

2012-01-01

234

Practical Motion Planning in Unknown and Unpredictable Environments  

E-print Network

Abstract: Motion planners for robots in unknown and dynamic environments often assume known obstacle-free trajectory segments in the unknown configuration-time (CT) space of a robot without assum- ing known obstaclePractical Motion Planning in Unknown and Unpredictable Environments Rayomand Vatcha and Jing Xiao

Xiao, Jing

235

10 CFR 71.83 - Assumptions as to unknown properties.  

Code of Federal Regulations, 2013 CFR

... false Assumptions as to unknown properties. 71.83 Section...71.83 Assumptions as to unknown properties. When the...material in any package is not known, the licensee shall package the fissile material as if the unknown properties have credible...

2013-01-01

236

Jigsaw Puzzles with Pieces of Unknown Orientation Andrew C. Gallagher  

E-print Network

location is known but orientation is unknown, we propose a pairwise MRF where each node represents a jigsaw- sembled. To solve puzzles with jigsaw pieces of known lo- #12;cation and unknown orientation, we proposeJigsaw Puzzles with Pieces of Unknown Orientation Andrew C. Gallagher Eastman Kodak Research

Chen, Tsuhan

237

Defining the Problem Known Environment Unknown Environment Improvements Reinforcement Learning  

E-print Network

Defining the Problem Known Environment Unknown Environment Improvements Reinforcement Learning Bel¨oningsbaserad Inl¨arning Defining the Problem Known Environment Unknown Environment Improvements 1 Defining Assumptions Central Concepts 2 Known Environment Bellmans Equation Solving Techniques 3 Unknown Environment

Kjellström, Hedvig

238

10 CFR 71.83 - Assumptions as to unknown properties.  

Code of Federal Regulations, 2014 CFR

... false Assumptions as to unknown properties. 71.83 Section...71.83 Assumptions as to unknown properties. When the...material in any package is not known, the licensee shall package the fissile material as if the unknown properties have credible...

2014-01-01

239

Stability Analysis of Networked Control Systems with Unknown Inputs  

E-print Network

# , Jitesh H. Panchal and Dengfeng Sun Abstract-- Unknown Input Observers (UIO) use the known plant's inputs robust observers for linear and nonlinear systems, for systems with known and unknown inputsStability Analysis of Networked Control Systems with Unknown Inputs Ahmad F Taha, Ahmed Elmahdi

Sun, Dengfeng

240

Measurements of the CKM Angle phi3/gamma  

SciTech Connect

We present a review on the measurements of the CKM angle {gamma} ({phi}{sub 3}){sup 1} as performed by the BABAR and Belle experiments at the asymmetric-energy e{sup +}e{sup -} B factories colliders PEP-II and KEKB. These measurements are using either charged or neutral B decays. For charged B decays the modes {tilde D}{sup 0}K{sup -}, {tilde D}*{sup 0}K{sup -}, and {tilde D}{sup 0}K*{sup -} are employed, where {tilde D}{sup 0} indicates either a D{sup 0} or a {bar D}{sup 0} meson. Direct CP violation is exploited. It is caused by interferences between V{sub ub} and V{sub cb} accessible transitions that generate asymmetries in the final states. For these decays various methods exist to enhance the sensitivity to the V{sub ub} transition, carrying the weak phase {gamma}. For neutral B decays, the modes D{sup (*){+-}}{pi}{sup {-+}} and D{sup {+-}}{rho}{sup {-+}} are used. In addition to the V{sub ub} and V{sub cb} interferences, these modes are sensitive to the B{sup 0}-{bar B}{sup 0} mixing, so that time dependent analyses are performed to extract sin(2{beta} + {gamma}). An alternative method would use the lower branching ratios decay modes {tilde D}{sup (*)0}{bar K}{sup (*)0} where much larger asymmetries are expected. The various available methods are mostly ''theoretically clean'' and always free of penguins diagrams. In some cases a high sensitivity to {gamma} is expected and large asymmetries may be seen. But these measurements are always experimentally difficult as one has to face with either low branching ratios, or small asymmetries, or additional technical/theoretical difficulties due to Dalitz/SU(3) and re-scattering models needed to treat/estimate nuisance parameters such as unknown strong phases and the relative magnitude of the amplitude of the interfering ''V{sub ub}'' transitions. Thus at the present time only a relatively limited precision on {gamma} can be extracted from these measurements. The current world average is {gamma} = (78{sub -26}{sup +19}){sup o} [1]. For other methods and long term perspectives, as discussed in details, the reader is invited to consult the proceedings of the recent CKM workshop that was held in Nagoya (Japan) in December 2006 [2].

Tisserand, Vincent; /Annecy, LAPP

2007-06-27

241

Mixed finite element methods for incompressible flow: Stationary ...  

E-print Network

In this article, we develop and analyze a mixed finite element method for the Stokes equations. Our mixed ... Let f = (f1, ... , fd ) and ? > 0 be the given external body force and kinematic ... significant ones are the increase in the number of unknowns and the symmetry requirement for .... We use H?1( ) to denote the dual of. H1.

2009-05-14

242

2D DOA estimation with propagator method for correlated sources under unknown symmetric Toeplitz noise  

Microsoft Academic Search

The paper employs the propagator method (PM) to find two-dimensional (2D) direction of arrival angles (DOAs). The proposed algorithm can be applied to the situation when the incident sources are mixed, either with uncorrelated or fully correlated (coherent) sources. Like S. Pasad et al. (see IEEE Trans., vol.ASSP-36, no.5, p.631-41, 1988), we assume a symmetric Toeplitz covariance matrix for the

Nizar Tayem; Hyuck M. Kwon

2005-01-01

243

Two Comments on Bond Angles  

NASA Astrophysics Data System (ADS)

Tetrahedral Bond Angle from Elementary Trigonometry The alternative approach of using the scalar (or dot) product of vectors enables the determination of the bond angle in a tetrahedral molecule in a simple way. There is, of course, an even more straightforward derivation suitable for students who are unfamiliar with vectors, or products thereof, but who do know some elementary trigonometry. The starting point is the figure showing triangle OAB. The point O is the center of a cube, and A and B are at opposite corners of a face of that cube in which fits a regular tetrahedron. The required bond angle alpha = AÔB; and using Pythagoras' theorem, AB = 2(square root 2) is the diagonal of a face of the cube. Hence from right-angled triangle OEB, tan(alpha/2) = (square root 2) and therefore alpha = 2tan-1(square root 2) is approx. 109° 28' (see Fig. 1).

Glaister, P.

1997-09-01

244

Solar Angles and Tracking Systems  

NSDL National Science Digital Library

Students learn about the daily and annual cycles of solar angles used in power calculations to maximize photovoltaic power generation. They gain an overview of solar tracking systems that improve PV panel efficiency by following the sun through the sky.

Integrated Teaching And Learning Program

245

Angles, scales and parametric renormalization  

E-print Network

We decompose renormalized Feynman rules according to the scale and angle dependence of amplitudes. We use parametric representations such that the resulting amplitudes can be studied in algebraic geometry.

Francis Brown; Dirk Kreimer

2011-12-06

246

Robot self-location in unknown environments  

SciTech Connect

It is often necessary for robots to navigate in environments which are not known in advance. In this context, self-location is the problem of determining how far and in what direction motion has occurred. Because of wheel slippage and other errors, odometry cannot be depended upon to provide precise or accurate positional information. Triangulating from visual features can help make position estimation more accurate. This paper describes work that was done during a three-month student research internship at the Center for Engineering Systems Advanced Research (CESAR) of the Oak Ridge National Laboratory, exploring the problem of robot self-location in unknown environments. This work included the development and integration of a set of programs which present a partial solution to this self-location problem. These programs use a sequence of images which are acquired as the camera moves between positions with a motion which is known approximately. Visual features are extracted from the images and matched through time. Triangulation using these features then provides a rough estimate of the range of these features from the camera. Kalman filtering (not implemented) can then be used to integrate the information from odometry and vision to provide a better estimate of the position of the robot. 10 refs., 13 figs., 1 tab.

Stuck, E.R.

1991-02-01

247

[Mixed cryoglobulinemia].  

PubMed

The authors describe two clinical cases of cryoglobulinemia. A 70 years old woman, having skin ulcers on lower limbs, arthralgias, paresthesias and constitutional symptoms, for about 10 months. Exams revealed mild anemia, elevation of the biological parameters of inflammation and aminotransferases, positive cryoglobulin and rheumatoid factor in serum, and a severe reduction in C4 complement fraction. Hepatitis C virus (HCV) serology was negative. Idiopathic mixed cryoglobulinemia was diagnosed and corticosteroid therapy started. Given the lack of response, cyclophosphamide and plasmapheresis were added. Two weeks later the patient died in septic shock. The second case refers to a 41 years old female, with untreated hepatitis C who developed over a 6 month period petechiae and livedoid lesions on the lower limbs, peripheral neuropathy, and constitutional symptoms and was admitted with intestinal necrosis. Exams were consistent with the diagnosis of mixed cryoglobulinemia associated, with HCV. She started therapy with ribavirin and pegylated interferon-alpha, with improvement. PMID:22113605

Roque, R; Ramiro, S; Vinagre, F; Cordeiro, A; Godinho, F; Santos, Maria José; Gonçalves, P; Canas da Silva, J

2011-01-01

248

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...

249

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....

250

High angle of attack: Aerodynamics  

NASA Technical Reports Server (NTRS)

The ability to predict high angle of attack, nonlinear, aerodynamic characteristics of flight vehicles, including aircraft, has made significant progress in the last 25 years using computational tools and analyses. The key technological element which has made these analyses possible is the ability to account for the influence of the shed vortical flow, prevalent in this angle of attack range, on geometries of interest. Using selected analysis techniques, applications have also been made to wing design in order to improve their high speed maneuver performance. Various techniques, associated with different levels of accuracy, exist to model this vortical flow influence. The ones included in this paper cover: suction analogy with extensions; free vortex filaments; free vortex sheet modeling; and Euler and Navier-Stokes solutions. Associated relevant features of vortices are also addressed, including: the wing and flow conditions which cause vortex formation; and how the vortex strength varies with angle of attack and wing sweep.

Lamar, John E.

1992-01-01

251

Dilution jet mixing program, phase 3  

NASA Technical Reports Server (NTRS)

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.

Srinivasan, R.; Coleman, E.; Myers, G.; White, C.

1985-01-01

252

Management of angle closure glaucoma  

PubMed Central

Primary angle closure glaucoma (PACG) is equally prevalent in Indian in Asian population as the primary open angle glaucoma. Eighty-six percent of people with PACG are in Asia, with approximately 48.0% in China, 23.9% in India and 14.1% in southeast Asia. To understand PACG, it is mandatory to understand its classification and type of presentation with the underlying pathophysiology. The treatment options are medical, laser and/or surgical. The present article provides an overview of PACG. PMID:21150039

See, Jovina L S; Aquino, Maria Cecilia D; Aduan, Joel; Chew, Paul T K

2011-01-01

253

Do not Bet on the Unknown Versus Try to Find Out More: Estimation Uncertainty and “Unexpected Uncertainty” Both Modulate Exploration  

PubMed Central

Little is known about how humans solve the exploitation/exploration trade-off. In particular, the evidence for uncertainty-driven exploration is mixed. The current study proposes a novel hypothesis of exploration that helps reconcile prior findings that may seem contradictory at first. According to this hypothesis, uncertainty-driven exploration involves a dilemma between two motives: (i) to speed up learning about the unknown, which may beget novel reward opportunities; (ii) to avoid the unknown because it is potentially dangerous. We provide evidence for our hypothesis using both behavioral and simulated data, and briefly point to recent evidence that the brain differentiates between these two motives. PMID:23087606

Payzan-LeNestour, Élise; Bossaerts, Peter

2012-01-01

254

EXPANDED MIXED FINITE ELEMENT METHODS FOR QUASILINEAR SECOND ORDER ELLIPTIC PROBLEMS, It (*)  

Microsoft Academic Search

Anew mixed formulation recently proposedfor hnear problems is extended to quasihnear second-order elliptic problems This new formulation expands the standard mixed formulation in the sense that three variables are explicitly treated, ie, the scalar unknown, Us gradient, and itsflux (the coefficient times the gradient) Based on this formulation, mixed finite element approximations of the quasihnear problems are estabhshed Existence and

Zhangxin CHEN

1994-01-01

255

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

256

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

PubMed

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

Zhao, Chunzhe; Li, Donghai

2014-07-01

257

Discovering the Inscribed Angle Theorem  

ERIC Educational Resources Information Center

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,…

Roscoe, Matt B.

2012-01-01

258

Paired-angle multiplicative compounding.  

PubMed

Ultrasound compounding is a method of combining multiple images from different angles in order to create a single image with improved resolution and reduced angular-dependent artifactual detail. Compounding methods traditionally calculate each pixel in the compound image as a simple functional relationship between pixel elements in the component image set. In order to achieve an even better resolution and further reduce angular-dependent artifacts, this paper investigates a new type of compounding we call paired angle multiplicative compounding (PAMC), in which compound images are produced by a summation of multiplied pairs of component images acquired at different angles. A PAMC image of a breast phantom demonstrates improved delineation ofmicrocalcifications in comparison to the mean operation. Images of the forearm are used to investigate larger angles of paired multiplication, the best improving contrast ratio (28%) and signal to noise ratio (24%) when compared to the mean method. The PAMC method is found to be similar to the MEM and median compounding operations, the largest difference being that it is better preserving contributions from normal incidence but at the expense of needing a larger angular range. PMID:18939612

Macione, James; Yang, Zhi; Fox, Martin

2008-04-01

259

Constraints on widths of mixed pentaquark multiplets  

E-print Network

We determine constraints on the partial widths of mixed pentaquark multiplets in the framework of heavy baryon chiral perturbation theory (HB$\\chi$PT). The partial widths satisfy a GMO-type relation at leading order in HB$\\chi$PT, for arbitrary mixing. The widths of N(1440), N(1710), and $\\Theta(1540)$ are not consistent with ideal mixing, $\\theta_{N} = 35.3^{\\circ}$, but are consistent with $\\theta_{N} \\lesssim 25^{\\circ}$. Furthermore, there are parameter values in HB$\\chi$PT that produce such a mixing angle while allowing the identification of the mass spectrum above. As an alternative to non-ideal mixing, we also suggest reasons for giving up on N(1440) as a pure pentaquark state.

Vivek Mohta

2004-11-18

260

Constraints on widths of mixed pentaquark multiplets  

E-print Network

We determine constraints on the partial widths of mixed pentaquark multiplets in the framework of heavy baryon chiral perturbation theory (HB$\\chi$PT). The partial widths satisfy a GMO-type relation at leading order in HB$\\chi$PT, for arbitrary mixing. The widths of N(1440), N(1710), and $\\Theta(1540)$ are not consistent with ideal mixing, $\\theta_{N} = 35.3^{\\circ}$, but are consistent with $\\theta_{N} \\lesssim 25^{\\circ}$. Furthermore, there are parameter values in HB$\\chi$PT that produce such a mixing angle while allowing the identification of the mass spectrum above. As an alternative to non-ideal mixing, we also suggest reasons for giving up on N(1440) as a pure pentaquark state.

Mohta, V

2004-01-01

261

Assessment of angle velocity in girls with adolescent idiopathic scoliosis  

PubMed Central

Background Although it has been demonstrated that the peak height velocity (PHV) is a predictive factor of progression in adolescent idiopathic scoliosis (AIS), little is known about the usefulness of angle progression in clinical practice. The purpose of this study was to establish a relationship between height and angle velocities, as well as to determine if peak angle velocity (PAV) occurs at the same time than PHV. Methods A retrospective study of a cohort of girls with idiopathic scoliotic curves greater than 10°. Data of 132 girls who participated in a previous retrospective study about growth in AIS were used to calculate height and angle velocities. Relationship between height and angle velocities was estimated by the use of a Linear Mixed Model. Results PHV and PAV take place simultaneously 1 year before menarche in progressive curves managed with a brace in AIS. Changes in angle velocity are influenced by changes in height growth velocity, in such a way that as from 6 months post-menarche, height growth velocity in this group of girls estimates curve progression velocity (?-coefficient -0.88, p = 0.04). Conclusion As from 6 months post-menarche, there is an inverse relationship between height velocity and curve progression in the group of AIS girls with progressive curves managed with a brace. Because height velocity is decreasing from 1 year before menarche, this finding corroborates that at the end of puberty, there is still a risk of progression in this group of girls despite bracing. The assessment of both height and angle velocity might be useful in clinical practice at the time of assessing brace effectiveness and how long bracing has to be indicated. PMID:19758424

Escalada, Ferran; Marco, Ester; Duarte, Esther; Ma Muniesa, Josep; Boza, Roser; Tejero, Marta; Cáceres, Enric

2009-01-01

262

Testing solar lepton mixing sum rules in neutrino oscillation experiments  

E-print Network

Small discrete family symmetries such as S4, A4 or A5 may lead to simple leading-order predictions for the neutrino mixing matrix such as the bimaximal, tribimaximal or golden ratio mixing patterns, which may be brought into agreement with experimental data with the help of corrections from the charged-lepton sector. Such scenarios generally lead to relations among the parameters of the physical leptonic mixing matrix known as solar lepton mixing sum rules. In this article, we present a simple derivation of such solar sum rules, valid for arbitrary neutrino and charged lepton mixing angles and phases, assuming only {\\theta}13^{\

Peter Ballett; Stephen F. King; Christoph Luhn; Silvia Pascoli; Michael A. Schmidt

2014-11-13

263

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

264

a Simple Synchronization Scheme of Coullet Systems with Unknown Parameters  

NASA Astrophysics Data System (ADS)

Synchronization of Coullet systems is investigated via back stepping method when parameters are unknown. A novel adaptive control scheme is presented, which contains a single controller. To achieve the synchronization of Coullet systems, sufficient conditions are derived and the unknown parameters are estimated. Finally, some numerical simulations are employed to verify the effectiveness of the proposed scheme.

Wang, Zuo-Lei; Shi, Xue-Rong; Jiang, Yaolin

2014-12-01

265

54. East Side of Breaker from Foot House, date unknown ...  

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

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

266

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

267

Behavioral/Systems/Cognitive The Known Unknowns: Neural Representation of  

E-print Network

Behavioral/Systems/Cognitive The Known Unknowns: Neural Representation of Second-Order Uncertainty-outcome associations in a gamble are either known (unambig- uous) or completely unknown (ambiguous). Here, we relaxed their probabilities are known precisely, which we refer to as "first-order uncertainty." How- ever, action

Penny, Will

268

Using Artificial Anomalies to Detect Unknown and Known Network Intrusions  

Microsoft Academic Search

Intrusion detection systems (IDSs) must be capable of detecting new and unknown attacks, or anomalies. We study the problem of building detection models for both pure anomaly detection and combined misuse and anomaly detection (i.e., detection of both known and unknown in- trusions). We propose an algorithm to generate artificial anomalies to coerce the inductive learner into discovering an accurate

Wei Fan; Matthew Miller; Salvatore J. Stolfo; Wenke Lee; Philip K. Chan

2001-01-01

269

Using artificial anomalies to detect unknown and known network intrusions  

Microsoft Academic Search

Intrusion detection systems (IDSs) must be capable of detecting new and unknown attacks, or anomalies. We study the problem of building detection models for both pure anomaly detection and combined misuse and anomaly detection (i.e., detection of both known and unknown intrusions). We show the necessity of artificial anomalies by discussing the failure to use conventional inductive learning methods to

Wei Fan; Matthew Miller; Salvatore J. Stolfo; Wenke Lee; Philip K. Chan

2004-01-01

270

Models of Neutrino Masses from Oscillations with Maximal Mixing  

E-print Network

We discuss models of neutrino masses that lead to a large mixing angle for atmospheric neutrino oscillations. In particular we study a mechanism where a simple texture for the Dirac matrix leads to the observed pattern of mixings for a continuous range of Majorana matrices in a reasonably natural way. Both nearly maximal and small mixing solutions for solar neutrinos are compatible with this model. Possible dynamical realizations are discussed and a detailed example in terms of horizontal U(1) charges is presented.

Guido Altarelli; Ferruccio Feruglio

1998-09-30

271

Angle interferometer cross axis errors  

SciTech Connect

Angle interferometers are commonly used to measure surface plate flatness. An error can exist when the centerline of the double comer cube mirror assembly is not square to the surface plate and the guide bar for the mirror sled is curved. Typical errors can be one to two microns per meter. A similar error can exist in the calibration of rotary tables when the centerline of the double comer cube mirror assembly is not square to the axes of rotation of the angle calibrator and the calibrator axis is not parallel to the rotary table axis. Commercial double comer cube assemblies typically have non-parallelism errors of ten milli-radians between their centerlines and their sides and similar values for non-squareness between their centerlines and end surfaces. The authors have developed a simple method for measuring these errors and correcting them by remachining the reference surfaces.

Bryan, J.B.; Carter, D.L.; Thompson, S.L.

1994-01-01

272

Unilateral acute angle closure glaucoma.  

PubMed

A 52-year-old gentleman presented with 1-week history of severe right-sided headache associated with reduced vision in his right, amblyopic eye. Examination revealed raised intraocular pressure at 64 mm Hg. The anterior chamber (AC) was shallow and there was a dense cataract with no red reflex or fundal view. The contralateral eye had a deep anterior chamber with normal pressure and a clear lens. He was treated initially for acute angle closure glaucoma. The anterior chamber remained shallow and the intraocular pressure uncontrolled, despite maximum medical therapy. Owing to the absent fundal view and unilateral AC shallowing, further imaging was performed and a choroidal mass was found to be responsible for anterior displacement of the lens and shallowing of the angle. He went on to have an enucleation of the right eye, and histological examination confirmed the diagnosis of choroidal melanoma. PMID:23440984

Tan, Shi Zhuan; Sampat, Keerthika; Rasool, Sana; Nolan, Daniel

2013-01-01

273

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

NASA Astrophysics Data System (ADS)

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.

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

2014-12-01

274

Small angle scattering and asphaltenes  

NASA Astrophysics Data System (ADS)

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.

Sheu, Eric Y.

2006-09-01

275

Gaia basic angle monitoring system  

NASA Astrophysics Data System (ADS)

The Gaia mission will create an extraordinarily precise three-dimensional map of more than one billion stars in our Galaxy. The Gaia spacecraft, built by EADS Astrium, is part of ESA's Cosmic Vision programme and scheduled for launch in 2013. Gaia measures the position, distance and motion of stars with an accuracy of 24 micro-arcsec using two telescopes at a fixed mutual angle of 106.5°, named the ‘Basic Angle’. This accuracy requires ultra-high stability, which can only be achieved by using Silicon Carbide for both the optical bench and the telescopes. TNO has developed, built and space qualified the Silicon carbide Basic Angle Monitoring (BAM) on-board metrology system for this mission. The BAM measures the relative motion of Gaia’s telescopes with accuracies in the range of 0.5 micro-arcsec. This is achieved by a system of two laser interferometers able to measure Optical Path Differences (OPD) as small as 1.5 picometer rms. Following a general introduction to the Gaia mission, the Payload Module (PLM) and the use of Silicon Carbide as base material, this presentation will address an overview of the challenges towards the key requirements, design, integration and testing (including space-level qualification) of the Gaia BAM.

Gielesen, W.; de Bruijn, D.; van den Dool, T.; Kamphues, F.; Meijer, E.; Calvel, B.; Laborie, A.; Monteiro, D.; Coatantiec, C.; Touzeau, S.; Erdmann, M.; Gare, P.

2012-09-01

276

Superwarfarin intoxication of unknown etiology accompanying hemoperitoneum in a patient on fluconazole therapy.  

PubMed

We report a case of brodifacoum (superwarfarin) intoxication of unknown etiology presenting as hemoperitoneum after fluconazole administration for one week before the onset of symptoms. The initial prothrombin time (PT) and partial thromboplastin time (PTT) were markedly prolonged, although a mixing study with normal plasma showed that the corrected PT and PTT were in the normal range. Vitamin K-dependent coagulation factors (Factors II (5%), VII (8%), IX (4%), and X (6%)), and Protein C (16%) and Protein S (19%) activities were reduced. Although the patient denied ingesting rodenticides or medications other than an antifungal drug, fluconazole, superwarfarin toxicity was suspected; subsequently, his serum brodifacoum level was found to be positive. After administration of fresh frozen plasma (FFP) and oral vitamin K(1) for five days and following drainage of the hemoperitoneum, the patient's bleeding tendency stopped, with slow decreases in PT and PTT. Compared to previous reports of superwarfarin intoxication of unknown exposure, this case is distinct in that the severe bleeding tendency needed surgical management and involved a suspected drug interaction with fluconazole. Therefore, superwarfarin intoxication should be suspected in subjects with markedly prolonged PT and PTT of unknown etiology, since a drug interaction could amplify the toxicity from a small exposure to superwarfarin. PMID:20689146

Kim, So Young; Cho, Sun Young; Lee, Hee Joo; Suh, Jin-Tae; Oh, Seung Hwan; Lee, Woo-In; Park, Tae Sung; Yoon, Hwi-Joong

2010-01-01

277

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

PubMed Central

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

Moffa, Giusi; Spang, Rainer

2013-01-01

278

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

PubMed

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

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

2013-11-01

279

CHF Performance of Hybrid Mixing Vane Grid for a Nuclear Fuel Bundle  

Microsoft Academic Search

Numerous studies have shown that the mixing vanes of the spacer grids in a nuclear fuel rod bundle increase the Critical Heat Flux (CHF) significantly. The amount of the CHF enhancement depends strongly on the design of the mixing vanes such as the vane shape and vane bending angle. Recently a new mixing vane design was developed for an advanced

Chang-Hwan Shin; Tae-Hyun Chun; Yeon-Jun Choo; Sang-Ki Moon; Se-Young Chun

2007-01-01

280

Nonlinear Adaptive Control for Bioreactors with Unknown Kinetics  

E-print Network

on a real life wastewater treatment plant. Key words: Nonlinear adaptive control, continuous bioprocesses, unknown kinetics, wastewater treatment. 1 Introduction Biological processes have become widely used a pollutant (wastewater treatment...). There- fore, bioreactors require advanced regulation procedures

Bernard, Olivier

281

[Fever without focus and fever of unknown origin in childhood].  

PubMed

Fever is one of the most common presenting symptoms in children. In the majority of cases the underlying cause is easily diagnosed and if necessary a treatment initiated. In case of absent localising symptoms and signs (fever without a focus) investigations rapidly need to be undertaken in particular in newborns and infants. Persisting daily fever for more than two weeks are called fever of unknown origin. Diagnosis of etiology of fever of unknown origin is challenging. In approximately half of the cases an infectious cause is found; inflammatory and mailgnant diseases account for 5 to 10% of the cases. Despite a systematic and interdisciplinary approach the etiology remains unknown in up to a quarter of cases. This review discusses differential diagnoses, suggested investigations and treatment for fever without a focus and fever of unknown origin. PMID:23384985

Ritz, Nicole

2013-01-30

282

37 CFR 382.7 - Unknown copyright owners.  

Code of Federal Regulations, 2011 CFR

...Trademarks, and Copyrights COPYRIGHT ROYALTY BOARD, LIBRARY OF...Services § 382.7 Unknown copyright owners. If the Collective is unable to identify or locate a copyright owner or performer who...notwithstanding the common law or statutes of any...

2011-07-01

283

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

284

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

285

Genetics Experts Unite to I.D. Unknown Katrina Victims  

MedlinePLUS

... News From NIH Genetics Experts Unite to I.D. Unknown Katrina Victims Past Issues / Summer 2006 Table ... and genetics," says team member Stephen Sherry, Ph.D., of NLM's National Center for Biotechnology Information, "is ...

286

10 CFR 71.83 - Assumptions as to unknown properties.  

Code of Federal Regulations, 2011 CFR

...or other pertinent property of fissile material in any package is not known, the licensee shall package the fissile material as if the unknown properties have credible values that will cause the maximum neutron...

2011-01-01

287

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

288

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

289

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

290

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

291

Unknown Journal Series Volume 000, Number 0, 0000  

E-print Network

Unknown Journal Series Volume 000, Number 0, 0000 Arrays, Numeration Systems and Frankenstein Games properties of A. Further, we propose and analyze a family Frankenstein of 2­player pebbling games played

Fraenkel, Aviezri

292

Autonomous flight in unstructured and unknown indoor environments  

E-print Network

This thesis presents the design, implementation, and validation of a system that enables a micro air vehicle to autonomously explore and map unstructured and unknown indoor environments. Such a vehicle would be of considerable ...

Bachrach, Abraham Galton

2009-01-01

293

16 CFR 303.14 - Products containing unknown fibers.  

Code of Federal Regulations, 2011 CFR

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

2011-01-01

294

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

295

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

296

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

297

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

298

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

299

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

300

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

301

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

302

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

303

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

304

Using the Wheatstone Bridge to Compute Unknown Resistances.  

ERIC Educational Resources Information Center

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)

Schlenker, Richard M.

305

4. VIEW OF BORING MILL IN OPERATION, operator unknown (note ...  

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

4. VIEW OF BORING MILL IN OPERATION, operator unknown (note console in background). - Juniata Shops, Erecting Shop & Machine Shop, East of Fourth Avenue, between Fourth & Fifth Streets, Altoona, Blair County, PA

306

3. VIEW OF BORING MILL IN OPERATION, operator unknown (note ...  

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

3. VIEW OF BORING MILL IN OPERATION, operator unknown (note console in background). - Juniata Shops, Erecting Shop & Machine Shop, East of Fourth Avenue, between Fourth & Fifth Streets, Altoona, Blair County, PA

307

10 CFR 71.83 - Assumptions as to unknown properties.  

Code of Federal Regulations, 2010 CFR

...or other pertinent property of fissile material in any package is not known, the licensee shall package the fissile material as if the unknown properties have credible values that will cause the maximum neutron...

2010-01-01

308

System for identifying known materials within a mixture of unknowns  

DOEpatents

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.

Wagner, J.S.

1999-07-20

309

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

310

37 CFR 260.7 - Unknown copyright owners.  

Code of Federal Regulations, 2014 CFR

...ROYALTY PANEL RULES AND PROCEDURES RATES AND TERMS FOR PREEXISTING SUBSCRIPTION SERVICES' DIGITAL TRANSMISSIONS OF SOUND RECORDINGS AND MAKING OF EPHEMERAL PHONORECORDS § 260.7 Unknown copyright owners. If the designated...

2014-07-01

311

37 CFR 260.7 - Unknown copyright owners.  

Code of Federal Regulations, 2011 CFR

...ROYALTY PANEL RULES AND PROCEDURES RATES AND TERMS FOR PREEXISTING SUBSCRIPTION SERVICES' DIGITAL TRANSMISSIONS OF SOUND RECORDINGS AND MAKING OF EPHEMERAL PHONORECORDS § 260.7 Unknown copyright owners. If the designated...

2011-07-01

312

37 CFR 260.7 - Unknown copyright owners.  

Code of Federal Regulations, 2012 CFR

...ROYALTY PANEL RULES AND PROCEDURES RATES AND TERMS FOR PREEXISTING SUBSCRIPTION SERVICES' DIGITAL TRANSMISSIONS OF SOUND RECORDINGS AND MAKING OF EPHEMERAL PHONORECORDS § 260.7 Unknown copyright owners. If the designated...

2012-07-01

313

37 CFR 260.7 - Unknown copyright owners.  

Code of Federal Regulations, 2013 CFR

...ROYALTY PANEL RULES AND PROCEDURES RATES AND TERMS FOR PREEXISTING SUBSCRIPTION SERVICES' DIGITAL TRANSMISSIONS OF SOUND RECORDINGS AND MAKING OF EPHEMERAL PHONORECORDS § 260.7 Unknown copyright owners. If the designated...

2013-07-01

314

System for identifying known materials within a mixture of unknowns  

DOEpatents

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.

Wagner, John S. (Albuquerque, NM)

1999-01-01

315

Method for identifying known materials within a mixture of unknowns  

DOEpatents

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.

Wagner, John S. (Albuquerque, NM)

2000-01-01

316

Autonomous Flight in Unstructured and Unknown Indoor Environments  

E-print Network

This paper presents our solution for enabling a quadrotor helicopter, equipped with a laser rangefinder sensor, to autonomously explore and map unstructured and unknown indoor environments. While these capabilities are ...

Bachrach, Abraham Galton

317

1. Historic photograph (from Illinois Central Railroad), photographer unknown, 1894 ...  

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

1. Historic photograph (from Illinois Central Railroad), photographer unknown, 1894 ORIGINAL PASSENGER DEPOT - Illinois Central Railroad, Passenger Depot No. 1, North of First Street, east of Union Street, La Salle, La Salle County, IL

318

5. Historic photograph (from Illinois Central Gulf Railroad) photographer unknown, ...  

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

5. Historic photograph (from Illinois Central Gulf Railroad) photographer unknown, 1918 VIEW LOOKING NORTH SHOWING CONSTRUCTION OF FOUNDATION - Illinois Central Railroad, Freight Depot No. 2, North of First Street, east of Union Street, La Salle, La Salle County, IL

319

1. Historic photograph (from Illinois Central Gulf Railroad), photographer unknown, ...  

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

1. Historic photograph (from Illinois Central Gulf Railroad), photographer unknown, ca. 1918 SAND TANK NEAR FREIGHT DEPOT, CA. 1918 - Illinois Central Railroad, Sand Tank, North of First Street, east of Union Street, La Salle, La Salle County, IL

320

3. Historic photograph (from Illinois Central Railroad), photographer unknown, 1918 ...  

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

3. Historic photograph (from Illinois Central Railroad), photographer unknown, 1918 NORTH FACADE OF NEW FREIGHT HOUSE, TAKEN IN 1918 - Illinois Central Railroad, Freight Depot No. 2, North of First Street, east of Union Street, La Salle, La Salle County, IL

321

6. Historic photograph (from Illinois Central Gulf Railroad), photographer unknown, ...  

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

6. Historic photograph (from Illinois Central Gulf Railroad), photographer unknown, 1918 VIEW LOOKING NORTH SHOWING INTERIOR UNDER CONSTRUCTION - Illinois Central Railroad, Freight Depot No. 2, North of First Street, east of Union Street, La Salle, La Salle County, IL

322

Managing Credit Lines Using Markov Decision Processes with Unknown Parameters  

NASA Astrophysics Data System (ADS)

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.

Maeda, Yasunari; Masui, Fumito; Suzuki, Masakiyo

323

Photograph provided by Landmarks Commission, Photographer unknown, (e. 1945). OVERALL ...  

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

Photograph provided by Landmarks Commission, Photographer unknown, (e. 1945). OVERALL FRONT. WEST SIDE. VIEW LOOKING EAST (Photocopy of photograph: 3 x 5 copy negative) - Kansas City General Hospital, 2315 Locust, Kansas City, Jackson County, MO

324

37 CFR 382.7 - Unknown copyright owners.  

Code of Federal Regulations, 2012 CFR

...RECORDINGS AND THE REPRODUCTION OF EPHEMERAL RECORDINGS BY PREEXISTING SUBSCRIPTION SERVICES AND PREEXISTING SATELLITE DIGITAL AUDIO RADIO SERVICES Preexisting Subscription Services § 382.7 Unknown copyright owners. If the Collective is unable...

2012-07-01

325

65. Final Screening and Picking Tables, date unknown Historic Photograph, ...  

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

65. Final Screening and Picking Tables, date unknown Historic Photograph, Photographer Uknown; 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

326

Housing Mix, School Mix: Barriers to Success  

ERIC Educational Resources Information Center

Recent UK policy has emphasised both the development of socially mixed communities and the creation of balanced school intakes. In this paper, we use a case study of an area of mixed tenure in eastern England to explore policy in practice and the extent to which mechanisms of segregation impact on both the creation of socially mixed neighbourhoods…

Camina, M. M.; Iannone, P.

2014-01-01

327

Angles, Scales and Parametric Renormalization  

NASA Astrophysics Data System (ADS)

We discuss the structure of renormalized Feynman rules. Regarding them as maps from the Hopf algebra of Feynman graphs to {{C}} originating from the evaluation of graphs by Feynman rules, they are elements of a group {G=Spec_{Feyn}(H)} . We study the kinematics of scale and angle-dependence to decompose G into subgroups {G_{{1-s}}} and {G_{fin}} . Using parametric representations of Feynman integrals, renormalizability and the renormalization group underlying the scale dependence of Feynman amplitudes are derived and proven in the context of algebraic geometry.

Brown, Francis; Kreimer, Dirk

2013-09-01

328

The 30-degree angle revisited.  

PubMed

The standard surgical ellipse, with 30 degrees apical angles and a length-to-width ratio of 2 or 3 to 1, works optimally on a flat surface. The same pattern, when used for excisions on strongly convex or concave surfaces, leads to distortions which may require significant revisions. The reason for these discrepancies is explainable by the mathematical differences between flat Euclidian geometry and curved non-Euclidian geometry. Understanding these basic mathematical principles as applied to cutaneous surgery should lead to better preoperative planning, fewer intraoperative surprises, and more pleasing results. PMID:16243133

Klapper, Mitchell

2005-11-01

329

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

330

Chinese Unknown Word Identification as Known Word Tagging  

Microsoft Academic Search

This paper presents a tagging approach to Chinese unknown word identification based on lexicalized hidden Markov models (LHMMs). In this work, Chinese unknown word identification is represented as a tagging task on a sequence of known words by introducing word-formation patterns and part-of-speech. Based on the lexicalized HMMs, a statistical tagger is further developed to assign each known word an

Zhaoyun Wang; Guohong Fu

331

Chinese unknown word identification as known word tagging  

Microsoft Academic Search

This work presents a tagging approach to Chinese unknown word identification based on lexicalized hidden Markov models (LHMMs). In this work, Chinese unknown word identification is represented as a tagging task on a sequence of known words by introducing word-formation patterns and part-of-speech. Based on the lexicalized HMMs, a statistical tagger is further developed to assign each known word an

Guo-Hong Fu; Kang-Kwong Luke

2004-01-01

332

Developing Tests to Distinguish Between Similar-Looking Unknowns  

NSDL National Science Digital Library

Learners identify an unknown liquid by comparing its behavior to known liquids. Learners drop liquids onto different surfaces and see how the liquids behave. Learners realize that using a combination of results from two or more tests will allow them to successfully identify the unknown. Use the related activity "Look-alike Liquids" from the same resource (see related resources) to introduce the behavior of the liquids on different surfaces.

Kessler, James H.; Galvan, Patricia M.

2007-01-01

333

Chinese unknown word recognition for PCFG-LA parsing.  

PubMed

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

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

2014-01-01

334

Planet Impact: What's Your Angle  

NSDL National Science Digital Library

In this interactive module, students can vary the comet's angle of approach to see the effect of gravity on its trajectory towards Jupiter. The speed and masses of the two bodies are held constant. The goal is for the students to understand the relationship between the distance from the planet and the force of gravity. Students may work independently or in small groups to complete this activity. It may also be done as a teacher-directed activity in the classroom. After completing this module, students will learn about how changing the angle of approach affects the force of gravity on a comet. This module is a part of the online exploration "Planet Impact!" An explanation of the science behind the animations can be found in "Science Scoop." More information on the crash of Shoemaker-Levy 9 on Jupiter can be obtained from "Gravity Gallery" and "Comet News." Detailed teacher pages, identified as Teaching Tips on the title pages of the activity, provide science background information, lesson plan ideas, related resources, and alignment with national education standards.

2012-08-03

335

An approximate analytical solution for interlaminar stresses in angle-ply laminates  

NASA Technical Reports Server (NTRS)

An improved approximate analytical solution for interlaminar stresses in finite width, symmetric, angle-ply laminated coupons subjected to axial loading is presented. The solution is based upon statically admissible stress fields which take into consideration local property mismatch effects and global equilibrium requirements. Unknown constants in the admissible stress states are determined through minimization of the complementary energy. Typical results are presented for through-the-thickness and interlaminar stress distributions for angle-ply laminates. It is shown that the results represent an improved approximate analytical solution for interlaminar stresses.

Rose, Cheryl A.; Herakovich, Carl T.

1991-01-01

336

Mixing in process vessels used in biopharmaceutical manufacturing.  

PubMed

The use of nonbaffled vessels for mixing applications is becoming common in the biopharmaceutical industry but is not sufficiently well studied. Orientation of the impellers off-centered and/or at an angle is necessary to enhance mixing and eliminate swirling that would result without a baffle in a standard tank. This study focuses on characterizing mixing in vessels with the hydrofoil axial flow impellers mounted off-center at 10 degrees to the vertical. Geometrically similar vessels ranging from 100 to 5000 L working volume were used in this study. Mixing performance was successfully correlated to vessel geometric factors. PMID:10753450

Ram, K; Vickroy, T B; Lamb, K A; Slater, N K; Dennis, J S; Duffy, L E

2000-01-01

337

High angle of incidence implications upon air intake design and location for supersonic cruise aircraft and highly maneuverable transonic aircraft  

NASA Technical Reports Server (NTRS)

The effects of angle of attack on supersonic mixed compression inlet performance at four different locations about a hypothetical forebody are given. A computational method to predict optimum inlet location, orientation, and centerbody control schedule for design and off-design performance is described. The effects of inlet location and a forward canard on the angle-of-attack performance of a normal shock inlet at transonic speeds were studied. Proper integration of inlet location and a forward canard can enhance the angle-of-attack performance of a normal shock inlet. Two lower lip treatments for improving the angle-of-attack performance of rectangular inlets at transonic speeds are discussed.

Presley, L. L.

1979-01-01

338

Angle-dependent transmission in graphene heterojunctions  

NASA Astrophysics Data System (ADS)

We describe an experimental setup for measuring angle-dependent transmission due to Klein tunneling through quasi-ballistic graphene heterojunctions. Our devices consist of straight and angled leads, in which the barrier height is controlled by a shared gate electrode. Using a balancing technique and a differential measurement, we show how to isolate the angle-dependent contribution to the resistance from other angle-insensitive, gate-dependent, and device-dependent effects. We find that our baseline signal is dominated by mesoscopic conductance fluctuations, but that the increase in the fluctuation amplitude is due to angle-dependent transmission.

Rahman, Atikur; Guikema, Janice Wynn; Hassan, Nora M.; Markovi?, Nina

2015-01-01

339

Convection and Mixing in Giant Planet Evolution  

E-print Network

The primordial internal structures of gas giant planets are unknown. Often giant planets are modeled under the assumption that they are adiabatic, convective, and homogeneously mixed, but this is not necessarily correct. In this work, we present the first self-consistent calculation of convective transport of both heat and material as the planets evolve. We examine how planetary evolution depends on the initial composition and its distribution, whether the internal structure changes with time, and if so, how it affects the evolution. We consider various primordial distributions, different compositions, and different mixing efficiencies and follow the distribution of heavy elements in a Jupiter-mass planet as it evolves. We show that a heavy-element core cannot be eroded by convection if there is a sharp compositional change at the core-envelope boundary. If the heavy elements are initially distributed within the planet according to some compositional gradient, mixing occurs in the outer regions resulting in a...

Vazan, Allona; Kovetz, Attay; Podolak, Morris

2015-01-01

340

Modeling and Parameterizing Mixed  

E-print Network

Modeling and Parameterizing Mixed Layer Eddies Baylor Fox-Kemper (MIT) with Raffaele Ferrari (MIT: Baroclinic Instabilities of the Ocean Interior and Mixed Layer Part II: Modeling and Parameterizing Mixed Layer Eddies Part III: Implementing the Parameterization in the Hallberg Isopycnal Model #12;Ocean Mixed

Fox-Kemper, Baylor

341

Heat conductivity in linear mixing systems  

E-print Network

We present analytical and numerical results on the heat conduction in a linear mixing system. In particular we consider a quasi one dimensional channel with triangular scatterers with internal angles irrational multiples of pi and we show that the system obeys Fourier law of heat conduction. Therefore deterministic diffusion and normal heat transport which are usually associated to full hyperbolicity, actually take place in systems without exponential instability.

Baowen Li; Giulio Casati; Jiao Wang

2002-08-06

342

Effects of active-sterile neutrino mixing during primordial nucleosynthesis  

NASA Astrophysics Data System (ADS)

In the present work, we discuss the effects of the inclusion of sterile-active neutrino oscillations during the production of primordial light-nuclei. We assume that the sterile neutrino mass-eigenstate might oscillate with the two lightest active neutrino mass-eigenstates, with mixing angles ?1 and ?2. We also allow a constant renormalization (represented by a parameter (?)) of the sterile neutrino occupation factor. Taking ? and the mixing angles as free parameters, we have computed distribution functions of active and sterile neutrinos and primordial abundances. Using observable data we set constrains in the free parameters of the model. It is found that the data on primordial abundances are consistent with small mixing angles and with a value of ? smaller than 0.65 at 3? level.

Civitarese, Osvaldo; Mosquera, Mercedes Elisa; Sáez, María Manuela

2014-11-01

343

Update on Angles and Sides of the CKM Unitarity Triangle from BaBar  

SciTech Connect

We report several recent updates from the BABAR Collaboration on the matrix elements |V{sub cb}|, |V{sub ub}|, and |V{sub td}| of the Cabibbo-Kobayashi-Maskawa (CKM) quark-mixing matrix, and the angles {beta} and {alpha} of the unitarity triangle. Most results presented here are using the full BABAR {Upsilon}(4S) data set.

Cheng, Chih-hsiang; /Caltech; ,

2011-11-14

344

The Toroidal Imaging Mass-Angle Spectrograph (TIMAS) for the polar mission  

Microsoft Academic Search

The science objectives of the Toroidal Imaging Mass-Angle Spectrograph (TIMAS) are to investigate the transfer of solar wind energy and momentum to the magnetosphere, the interaction between the magnetosphere and the ionosphere, the transport processes that distribute plasma and energy throughout the magnetosphere, and the interactions that occur as plasma of different origins and histories mix and interact. In order

E. G. Shelley; A. G. Ghielmetti; H. Balsiger; R. K. Black; J. A. Bowles; R. P. Bowman; O. Bratschi; J. L. Burch; C. W. Carlson; A. J. Coker; J. F. Drake; J. Fischer; J. Geiss; A. Johnstone; D. L. Kloza; O. W. Lennartsson; A. L. Magoncelli; G. Paschmann; W. K. Peterson; H. Rosenbauer; T. C. Sanders; M. Steinacher; D. M. Walton; B. A. Whalen; D. T. Young

1995-01-01

345

A parametric numerical study of mixing in a cylindrical duct  

NASA Technical Reports Server (NTRS)

The interaction is described of some of the important parameters affecting the mixing process in a quick mixing region of a rich burn/quick mix/lean burn (RQL) combustor. The performance of the quick mixing region is significantly affected by the geometric designs of both the mixing domain and the jet inlet orifices. Several of the important geometric parameters and operating conditions affecting the mixing process were analytically studied. Parameters such as jet-to-mainstream momentum flux ratio (J), mass flow ratio (MR), orifice geometry, orifice orientation, and number of orifices/row (equally spaced around the circumferential direction were analyzed. Three different sets of orifice shapes were studied: (1) square, (2) elongated slots, and (3) equilateral triangles. Based on the analytical results, the best mixing configuration depends significantly on the penetration depth of the jet to prevent the hot mainstream flow from being entrained behind the orifice. The structure in a circular mixing section is highly weighted toward the outer wall and any mixing structure affecting this area significantly affects the overall results. The increase in the number of orifices per row increases the mixing at higher J conditions. Higher slot slant angles and aspect ratios are generally the best mixing configurations at higher momentum flux ratio (J) conditions. However, the square and triangular shaped orifices were more effective mixing configurations at lower J conditions.

Oechsle, V. L.; Mongia, H. C.; Holderman, J. D.

1992-01-01

346

A parametric numerical study of mixing in a cylindrical duct  

NASA Astrophysics Data System (ADS)

The interaction is described of some of the important parameters affecting the mixing process in a quick mixing region of a rich burn/quick mix/lean burn (RQL) combustor. The performance of the quick mixing region is significantly affected by the geometric designs of both the mixing domain and the jet inlet orifices. Several of the important geometric parameters and operating conditions affecting the mixing process were analytically studied. Parameters such as jet-to-mainstream momentum flux ratio (J), mass flow ratio (MR), orifice geometry, orifice orientation, and number of orifices/row (equally spaced around the circumferential direction were analyzed. Three different sets of orifice shapes were studied: (1) square, (2) elongated slots, and (3) equilateral triangles. Based on the analytical results, the best mixing configuration depends significantly on the penetration depth of the jet to prevent the hot mainstream flow from being entrained behind the orifice. The structure in a circular mixing section is highly weighted toward the outer wall and any mixing structure affecting this area significantly affects the overall results. The increase in the number of orifices per row increases the mixing at higher J conditions. Higher slot slant angles and aspect ratios are generally the best mixing configurations at higher momentum flux ratio (J) conditions. However, the square and triangular shaped orifices were more effective mixing configurations at lower J conditions.

Oechsle, V. L.; Mongia, H. C.; Holderman, J. D.

1992-07-01

347

A Parametric Numerical Study of Mixing in a Cylindrical Duct  

NASA Technical Reports Server (NTRS)

The interaction is described of some of the important parameters affecting the mixing process in a quick mixing region of a rich burn/quick mix/lean burn (RQL) combustor. The performance of the quick mixing region is significantly affected by the geometric designs of both the mixing domain and the jet inlet orifices. Several of the important geometric parameters and operating conditions affecting the mixing process were analytically studied. Parameters such as jet-to-mainstream momentum flux ratio (J), mass flow ratio (MR), orifice geometry, orifice orientation, and number of orifices/row (equally spaced) around the circumferential direction were analyzed. Three different sets of orifice shapes were studied: (1) square, (2) elongated slots, and (3) equilateral triangles. Based on the analytical results, the best mixing configuration depends significantly on the penetration depth of the jet to prevent the hot mainstream flow from being entrained behind the orifice. The structure in a circular mixing section is highly weighted toward the outer wall and any mixing structure affecting this area significantly affects the overall results. The increase in the number of orifices per row increases the mixing at higher J conditions. Higher slot slant angles and aspect ratios are generally the best mixing configurations at higher momentum flux ratio (J) conditions. However, the square and triangular shaped orifices were more effective mixing configurations at lower J conditions.

Oechsle, V. L.; Mongia, H. C.; Holdeman, J. D.

1992-01-01

348

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

349

Angled Layers in Super Resolution  

NASA Technical Reports Server (NTRS)

Researchers used a special imaging technique with the panoramic camera on NASA's Mars Exploration Rover Opportunity to get as detailed a look as possible at a target region near eastern foot of 'Burns Cliff.' The intervening terrain was too difficult for driving the rover closer. The target is the boundary between two sections of layered rock. The layers in lower section (left) run at a marked angle to the layers in next higher section (right).

This view is the product of a technique called super resolution. It was generated from data acquired on sol 288 of Opportunity's mission (Nov. 14, 2004) from a position along the southeast wall of 'Endurance Crater.' Resolution slightly higher than normal for the panoramic camera was synthesized for this view by combining 17 separate images of this scene, each one 'dithered' or pointed slightly differently from the previous one. Computer manipulation of the individual images was then used to generate a new synthetic view of the scene in a process known mathematically as iterative deconvolution, but referred to informally as super resolution. Similar methods have been used to enhance the resolution of images from the Mars Pathfinder mission and the Hubble Space Telescope.

2004-01-01

350

Signature extension for sun angle, volume 1  

NASA Technical Reports Server (NTRS)

The author has identified the following significant results. Within a restricted zenith sun angle range of 35 - 50 degrees, it was empirically observed that canopy reflectance is mainly Lambertian. Reflectance changes with crop stage were simple shifts in scale in the sun angle range. It was noted that sun angle variations depend on canopy characteristics. Effects of the vegetative canopy were most pronounced at the larger solar zenith angles (20 %). The linear sun angle correction coefficients demonstrate a dependency on both crop stage (15-20 %) and crop type (10-20 %). The use of canopy reflectance modeling allowed for the generation of a simulated data set over an extremely broad envelope of sun angles.

Smith, J. A. (principal investigator); Berry, J. K.; Heimes, F.

1975-01-01

351

A direct approach to finding unknown boundary conditions in steady heat conduction  

NASA Technical Reports Server (NTRS)

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.

Martin, Thomas J.; Dulikravich, George S.

1993-01-01

352

Ant-Inspired Navigation In Unknown Environments Stergios I. Roumeliotis  

E-print Network

Ant-Inspired Navigation In Unknown Environments Stergios I. Roumeliotis Computer Science Dpt-0781 maja@robotics.usc.edu In contrast to mostother ant species, desert ants (Cataglyphis fortis) do not use) information. Indeed desert ants and honeybees use such information in addition to path integration. On a fa

Roumeliotis, Stergios I.

353

Entanglement concentration for unknown atomic entangled states via entanglement swapping  

SciTech Connect

An entanglement concentration scheme for unknown atomic entanglement states is proposed via entanglement swapping in cavity QED. Because the interaction used here is a large-detuned one between two driven atoms and a quantized cavity mode, the effects of the cavity decay and thermal field have been eliminated. These advantages can warrant the experimental feasibility of the current scheme.

Yang Ming; Zhao Yan; Song Wei; Cao Zhuoliang [Anhui Key Laboratory of Information Material and Devices, School of Physics and Material Science, Anhui University, Hefei 230039 (China)

2005-04-01

354

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

355

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

356

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

357

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

358

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

359

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

360

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

361

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

362

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

363

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

364

Delta: Automatic Identification of Unknown Web-based Infection Campaigns  

E-print Network

for other vulnerable web sites, and launch a carefully crafted infection campaign in order to maximizeDelta: Automatic Identification of Unknown Web-based Infection Campaigns Kevin Borgolte malicious web sites has become a major chal- lenge in today's Internet. Previous work focused on detecting

Vigna, Giovanni

365

Pyrexia of unknown origin: Kikuchi-Fujimoto disease.  

PubMed

A case of Kikuchi-Fujimoto disease is presented in the context of pyrexia of unknown origin. Although no specific etiology has been identified, several reported cases are associated with a variety of viruses, toxoplasma, or systemic lupus erythematosus. We present a case and discuss the implications for management. PMID:15206067

Parappil, Ali; Rifaath, A A; Doi, Suhail A R; Pathan, Ejaz; Surrun, S K

2004-07-01

366

Autonomous sonar navigation in indoor, unknown and unstructured environments  

Microsoft Academic Search

A mobile robot operating autonomously in unknown, unstructured environments has to be able to map its environment while at the same time determining its own position accurately within this environment. This paper presents an approach where the bootstrapping problem of concurrent localisation and map building is solved by estimating the respective errors introduced by each of the processes and correcting

W. D. Rencken

1994-01-01

367

159. Photocopy of measured drawing (location of original document unknown) ...  

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

159. Photocopy of measured drawing (location of original document unknown) C. H. Puls, delineator 12 January 1937 Last revised by Keister 23 September 1948 FIFTH FLOOR PLAN - U.S. Department of the Interior, Eighteenth & C Streets Northwest, Washington, District of Columbia, DC

368

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

ERIC Educational Resources Information Center

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)…

Braden, Jeffery P.; Shaw, Steven R.

2009-01-01

369

19. Photographic copy of photograph, photographer unknown, 9 February 1907 ...  

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

19. Photographic copy of photograph, photographer unknown, 9 February 1907 (original print located at U.S. Bureau of Reclamation Upper Columbia Area Office, Yakima, Washington). "Keechelus Crib Dam. Showing east abutment and freshet". - Keechelus Dam, Yakima River, 10 miles northwest of Easton, Easton, Kittitas County, WA

370

29. Photographic copy of photograph, photographer unknown, 5 February 1914 ...  

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

29. Photographic copy of photograph, photographer unknown, 5 February 1914 (original print located at U.S. Bureau of Reclamation Upper Columbia Area Office, Yakima, Washington). "General view of the camp in winter." - Keechelus Dam, Yakima River, 10 miles northwest of Easton, Easton, Kittitas County, WA

371

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

372

31. Photographic copy of photograph, photographer unknown, 28 May 1914 ...  

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

31. Photographic copy of photograph, photographer unknown, 28 May 1914 (original print located at U.S. Bureau of Reclamation Upper Columbia Area Office, Yakima, Washington). "View of steam shovel excavation and general view of north borrow pit." - Keechelus Dam, Yakima River, 10 miles northwest of Easton, Easton, Kittitas County, WA

373

25. Photographic copy of photograph, photographer unknown, 26 June 1913 ...  

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

25. Photographic copy of photograph, photographer unknown, 26 June 1913 (original print located at U.S. Bureau of Reclamation Upper Columbia Area Office, Yakima, Washington). "View of 'C' Street in camp showing laborers bunk houses and tents. A bath house, and the end of the Y.M.C.A." - Keechelus Dam, Yakima River, 10 miles northwest of Easton, Easton, Kittitas County, WA

374

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

375

32. Photographic copy of photograph, photographer unknown, 29 June 1914 ...  

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

32. Photographic copy of photograph, photographer unknown, 29 June 1914 (original print located at U.S. Bureau of Reclamation Upper Columbia Area Office, Yakima, Washington). "Building embankment. A section of the foundation and riprap rock in place is shown on the left." - Keechelus Dam, Yakima River, 10 miles northwest of Easton, Easton, Kittitas County, WA

376

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

377

21. Photographic copy of photograph, photographer unknown, March 1907 (original ...  

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

21. Photographic copy of photograph, photographer unknown, March 1907 (original print located at U.S. Bureau of Reclamation Upper Columbia Area Office, Yakima, Washington). "Keechelus Crib Dam. Showing gates and spillway from below." - Keechelus Dam, Yakima River, 10 miles northwest of Easton, Easton, Kittitas County, WA

378

26. Photographic copy of photograph, photographer unknown, 27 September 1913 ...  

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

26. Photographic copy of photograph, photographer unknown, 27 September 1913 (original print located at U.S. Bureau of Reclamation Upper Columbia Area Office, Yakima, Washington). "General view of camp from top of trestle." - Keechelus Dam, Yakima River, 10 miles northwest of Easton, Easton, Kittitas County, WA

379

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

380

23. Photographic copy of photograph, photographer unknown, 17 August 1907 ...  

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

23. Photographic copy of photograph, photographer unknown, 17 August 1907 (original print located at U.S. Bureau of Reclamation Upper Columbia Area Office, Yakima, Washington). "View across dam from right bank showing drift. Mr. Jacobs and Watchman Hansen in foreground." - Keechelus Dam, Yakima River, 10 miles northwest of Easton, Easton, Kittitas County, WA

381

16. Photographic copy of photograph, photographer unknown, 31 October 1905 ...  

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

16. Photographic copy of photograph, photographer unknown, 31 October 1905 (original print located at U.S. Bureau of Reclamation Upper Columbia Area Office, Yakima, Washington). "view showing dam in outlet of Keechelus Lake, WN., looking east from right bank at outlet of lake." - Keechelus Dam, Yakima River, 10 miles northwest of Easton, Easton, Kittitas County, WA

382

28. Photographic copy of photograph, photographer unknown, 15 October 1913 ...  

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

28. Photographic copy of photograph, photographer unknown, 15 October 1913 (original print located at U.S. Bureau of Reclamation Upper Columbia Area Office, Yakima, Washington). "Placing concrete in core-wall from concrete cars operating on the trestle." - Keechelus Dam, Yakima River, 10 miles northwest of Easton, Easton, Kittitas County, WA

383

20. Photographic copy of photograph, photographer unknown, 12 March 1907 ...  

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

20. Photographic copy of photograph, photographer unknown, 12 March 1907 (original print located at U.S. Bureau of Reclamation Upper Columbia Area Office, Yakima, Washington). "Keechelus Crib Dam. Looking upstream from below dam; showing horses hauling car up trestle to east abutment. Completed apron on left." - Keechelus Dam, Yakima River, 10 miles northwest of Easton, Easton, Kittitas County, WA

384

24. Photographic copy of photograph, photographer unknown, 28 May 1913 ...  

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

24. Photographic copy of photograph, photographer unknown, 28 May 1913 (original print located at U.S. Bureau of Reclamation Upper Columbia Area Office, Yakima, Washington). "Stump puller pulling stumps on dam site." - Keechelus Dam, Yakima River, 10 miles northwest of Easton, Easton, Kittitas County, WA

385

30. Photographic copy of photograph, photographer unknown, 29 April 1914 ...  

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

30. Photographic copy of photograph, photographer unknown, 29 April 1914 (original print located at U.S. Bureau of Reclamation Upper Columbia Area Office, Yakima, Washington). "Completed bridge." - Keechelus Dam, Yakima River, 10 miles northwest of Easton, Easton, Kittitas County, WA

386

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

387

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

388

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

389

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

390

Discover the Unknown Chekhov in Your ESL Classroom  

ERIC Educational Resources Information Center

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

Beliavsky, Ninah

2007-01-01

391

On the Energy Detection of Unknown Signals Over Fading Channels  

Microsoft Academic Search

This letter addresses the problem of energy detection of an unknown signal over a multipath channel. It starts with the no-diversity case, and presents some alternative closed-form expressions for the probability of detection to those recently reported in the literature. Detection capability is boosted by implementing both square-law combining and square-law selection diversity schemes

Fadel F. Digham; Mohamed-slim Alouini; Marvin K. Simon

2007-01-01

392

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

393

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

394

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

395

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

396

40. Photocopy of building model photograph, ca., 1974, photographer unknown. ...  

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

40. Photocopy of building model photograph, ca., 1974, photographer unknown. Original photograph property of United States Air Force, 21" Space Command. CAPE COD AIR STATION PAVE PAWS FACILITY MODEL - ELEVATION SHOWING FLOOR AND EQUIPMENT LAYOUT. - Cape Cod Air Station, Technical Facility-Scanner Building & Power Plant, Massachusetts Military Reservation, Sandwich, Barnstable County, MA

397

41. Photocopy of progress photograph ca. 1974, photographer unknown. Original ...  

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

41. Photocopy of progress photograph ca. 1974, photographer unknown. Original photograph Property of United States Air Force, 21" Space Command. This is the source for views 41 to 47. CAPE COD AIR STATION PAVE PAWS FACILITY - SHOWING BUILDING "RED IRON" STEEL STRUCTURE NEARING COMPLETION. - Cape Cod Air Station, Technical Facility-Scanner Building & Power Plant, Massachusetts Military Reservation, Sandwich, Barnstable County, MA

398

39. Photocopy of building model photograph, ca. 1974, photographer unknown. ...  

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

39. Photocopy of building model photograph, ca. 1974, photographer unknown. Original photograph property of United States Air Force, 21" Space Command. CAPE COD AIR STATION PAVE PAWS FACILITY MODEL - SHOWING "A" AND "B" FACES. - Cape Cod Air Station, Technical Facility-Scanner Building & Power Plant, Massachusetts Military Reservation, Sandwich, Barnstable County, MA

399

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

400

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

401

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

402

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

403

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

404

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

405

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

406

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

407

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

408

AUTOMATICALLY INCORPORATING UNKNOWN WORDS IN JUPITER Grace Chung  

E-print Network

AUTOMATICALLY INCORPORATING UNKNOWN WORDS IN JUPITER½ Grace Chung Spoken Language Systems Group) words in the JUPITER weather information system. Specifically our objective is to deal with weather in the JUPITER domain, and this paper will detail the development of a system that uses an ANGIE-based framework

409

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

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

Photographic copy of photograph, photographer unknown, September 1912 (original print located at U.S. Bureau of Reclamation Upper Columbia Area Office, Yakima, Washington). "BLASTING IN LAKE (DREDGE) HT. 500'." - Kachess Dam, Inlet Channel, Kachess River, 1.5 miles north of Interstate 90, Easton, Kittitas County, WA

410

22. Photographic copy of photograph, photographer unknown, 17 August 1907 ...  

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

22. Photographic copy of photograph, photographer unknown, 17 August 1907 (original print located at U.S. Bureau of Reclamation Upper Columbia Area Office, Yakima, Washington). "Keechelus Crib Dam. View dam from right bank of river, showing downstream face and apron of dam". - Keechelus Dam, Yakima River, 10 miles northwest of Easton, Easton, Kittitas County, WA

411

7. Historic photograph (from Illinois Central Gulf Railroad), photographer unknown, ...  

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

7. Historic photograph (from Illinois Central Gulf Railroad), photographer unknown, ca. 1915 SECOND PASSENGER DEPOT, CA. 1915, AFTER REMODELING OF SECOND PASSENGER DEPOT - Illinois Central Railroad, Passenger Depot No. 2, North of First Street, east of Union Street, La Salle, La Salle County, IL

412

3. Historic photograph (from Illinois Central Gulf Railroad), photographer unknown, ...  

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

3. Historic photograph (from Illinois Central Gulf Railroad), photographer unknown, ca. 1915 SECOND PASSENGER DEPOT, CA. 1915 DURING REMODELING OF DEPOT - Illinois Central Railroad, Passenger Depot No. 2, North of First Street, east of Union Street, La Salle, La Salle County, IL

413

5. Historic photograph (from Illinois Central Gulf railroad), photographer unknown, ...  

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

5. Historic photograph (from Illinois Central Gulf railroad), photographer unknown, ca. 1915 SECOND PASSENGER DEPOT, CA. 1915, DURING REMODELING OF DEPOT - Illinois Central Railroad, Passenger Depot No. 2, North of First Street, east of Union Street, La Salle, La Salle County, IL

414

4. Historic photograph (from Illinois Central Gulf Railroad), photographer unknown, ...  

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

4. Historic photograph (from Illinois Central Gulf Railroad), photographer unknown, 1918 VIEW LOOKING NORTHEAST SHOWING EXTERIOR OF BUILDING NEARING COMPLETION - Illinois Central Railroad, Freight Depot No. 2, North of First Street, east of Union Street, La Salle, La Salle County, IL

415

10. Historic photograph (from Illinois Central Gulf Railroad), photographer unknown, ...  

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

10. Historic photograph (from Illinois Central Gulf Railroad), photographer unknown, ca. 1915 INTERIOR OF SECOND PASSENGER DEPOT, CA. 1915, AFTER REMODELING OF SECOND PASSENGER DEPOT - Illinois Central Railroad, Passenger Depot No. 2, North of First Street, east of Union Street, La Salle, La Salle County, IL

416

4. Historic photograph (from Illinois Central Railroad), photographer unknown, ca. ...  

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

4. Historic photograph (from Illinois Central Railroad), photographer unknown, ca. 1915 SECOND PASSENGER DEPOT, CA. 1915, DURING REMODELING OF DEPOT - Illinois Central Railroad, Passenger Depot No. 2, North of First Street, east of Union Street, La Salle, La Salle County, IL

417

9. Historic photograph (from Illinois Central Gulf Railroad), photographer unknown, ...  

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

9. Historic photograph (from Illinois Central Gulf Railroad), photographer unknown, ca. 1915 INTERIOR OF SECOND PASSENGER DEPOT, CA. 1915, AFTER REMODELING OF SECOND PASSENGER DEPOT - Illinois Central Railroad, Passenger Depot No. 2, North of First Street, east of Union Street, La Salle, La Salle County, IL

418

9. Historic photograph (from Illinois Central Railroad), photographer unknown, 1918 ...  

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

9. Historic photograph (from Illinois Central Railroad), photographer unknown, 1918 NORTH FACADE, TAKEN IN 1918, SHOWING DOUBLE DOORS FOR ENGINE HOUSE - Illinois Central Railroad, Freight Depot No. 1, North of First Street, east of Union Street, La Salle, La Salle County, IL

419

2. Historic photograph (from Illinois Central Gulf Railroad), photographer unknown, ...  

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

2. Historic photograph (from Illinois Central Gulf Railroad), photographer unknown, 1918 CONSTRUCTION OF NEW FREIGHT DEPOT, TAKEN IN 1918, DURING THE CONVERSEION OF THE ORIGINAL FREIGHT DEPOT INTO AN ENGINE HOUSE - Illinois Central Railroad, Freight Depot No. 2, North of First Street, east of Union Street, La Salle, La Salle County, IL

420

8. Historic photograph (from Illinois Central Gulf Railroad), photographer unknown, ...  

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

8. Historic photograph (from Illinois Central Gulf Railroad), photographer unknown, ca. 1915 SECOND PASSENGER DEPOT, CA. 1915, AFTER REMODELING OF SECOND PASSENGER DEPOT - Illinois Central Railroad, Passenger Depot No. 2, North of First Street, east of Union Street, La Salle, La Salle County, IL

421

2. Historic photograph (from Illinois Central Gulf Railroad) photographer unknown, ...  

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

2. Historic photograph (from Illinois Central Gulf Railroad) photographer unknown, 1915 SECOND PASSENGER DEPOT, PHOTOGRAPH TAKEN IN 1915 PRIOR TO REMODELING - Illinois Central Railroad, Passenger Depot No. 2, North of First Street, east of Union Street, La Salle, La Salle County, IL

422

1. Historic photograph (from Illinois Central Railroad), photographer unknown, 1915 ...  

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

1. Historic photograph (from Illinois Central Railroad), photographer unknown, 1915 HISTORIC PHOTOGRAPH OF SECOND PASSENGER DEPOT BEFORE REMODELING, WITH ORIGINAL FREIGHT DEPOT BEYOND - Illinois Central Railroad, Passenger Depot No. 2, North of First Street, east of Union Street, La Salle, La Salle County, IL

423

8. Historic photograph (from Illinois Central Gulf Railroad), photographer unknown, ...  

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

8. Historic photograph (from Illinois Central Gulf Railroad), photographer unknown, 1918 SOUTH AND WEST FACADES, TAKEN IN 1918 DURING THE CONVERSION OF THE FREIGHT DEPOT INTO AN ENGINE HOUSE. - Illinois Central Railroad, Freight Depot No. 1, North of First Street, east of Union Street, La Salle, La Salle County, IL

424

1. Historic photograph (from Illinois Central Gulf Railroad), photographer unknown, ...  

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

1. Historic photograph (from Illinois Central Gulf Railroad), photographer unknown, 1918 NEW FREIGHT DEPOT, TAKEN IN 1918, DURING THE CONVERSION OF THE ORIGINAL FREIGHT DEPOT INTO AN ENGINE HOUSE - Illinois Central Railroad, Freight Depot No. 2, North of First Street, east of Union Street, La Salle, La Salle County, IL

425

6. Historic photograph (from Illinois Central Gulf Railroad), photographer unknown, ...  

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

6. Historic photograph (from Illinois Central Gulf Railroad), photographer unknown, ca. 1915 SECOND PASSENGER DEPOT, CA. 1915, AFTER REMODELING OF SECOND PASSENGER DEPOT - Illinois Central Railroad, Passenger Depot No. 2, North of First Street, east of Union Street, La Salle, La Salle County, IL

426

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

427

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

428

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

429

Walking Gait Optimization for Accommodation of Unknown Terrain Height Variations  

E-print Network

Walking Gait Optimization for Accommodation of Unknown Terrain Height Variations Brent Griffin of terrain height changes. Trajectory and control deviations are related to a nominal periodic orbit via that specifically account for trajectory and control-effort perturbations arising from a finite set of ground height

Grizzle, Jessy W.

430

26. Photocopy of photograph dated 1930; photographer unknown; original filed ...  

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

26. Photocopy of photograph dated 1930; photographer unknown; original filed as MR2.9/SP8/p343 in Audio-Visual Collection of Minnesota Historical Society, St. Paul; THREE-QUARTER VIEW SHOWING WEST SIDE AND SOUTH FRONT SHORTLY AFTER COMPLETION; LOOKING NORTHEAST - Northwest Airways Hangar & Administration Building, 590 Bayfield Street, St. Paul Downtown Airport (Holman), Saint Paul, Ramsey County, MN

431

29. Photocopy of photograph dated 1930; photographer unknown; original filed ...  

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

29. Photocopy of photograph dated 1930; photographer unknown; original filed as HE17/p7 in Audio-Visual Collection of Minnesota Historical Society, St. Paul; HANGAR AREA, INTERIOR, SHOWING LONGITUDINAL 'CARRYING' TRUSS AND CANTILEVERED SECTION OF ROOF TRUSSES; LOOKING NORTHWEST FROM SOUTHEAST FRONT CORNER - Northwest Airways Hangar & Administration Building, 590 Bayfield Street, St. Paul Downtown Airport (Holman), Saint Paul, Ramsey County, MN

432

28. Photocopy of photograph dated ca. 1940; photographer unknown; original ...  

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

28. Photocopy of photograph dated ca. 1940; photographer unknown; original filed as MR2.9/SP8/r373 in Audio-Visual Collection of Minnesota Historical Society, St. Paul; WEST SIDE AFTER SECOND-STORY ADDITION; LOOKING EAST - Northwest Airways Hangar & Administration Building, 590 Bayfield Street, St. Paul Downtown Airport (Holman), Saint Paul, Ramsey County, MN

433

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

434

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

435

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

436

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

437

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

438

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

439

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

440

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

441

49. South Side of Breaker Historic Photographer Unknown Originally taken ...  

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

49. South Side of Breaker Historic Photographer Unknown Originally taken by Glen Alden Safety Department, 18 August 1954; 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

442

46. North Side of Breaker Historic Photograph, Photographer Unknown, Originally ...  

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

46. North Side of Breaker Historic Photograph, Photographer Unknown, Originally taken by Glen Alden Safety Department, 18 August 1954; Collection of William Everett, Jr. (Wilkes-Barre, PA), photocopy of Joseph E.B. Elliot - Huber Coal Breaker, 101 South Main Street, Ashley, Luzerne County, PA

443

Application of incremental unknowns to the Burgers equation  

NASA Technical Reports Server (NTRS)

In this article, we make a few remarks on the role that attractors and inertial manifolds play in fluid mechanics problems. We then describe the role of incremental unknowns for approximating attractors and inertial manifolds when finite difference multigrid discretizations are used. The relation with direct numerical simulation and large eddy simulation is also mentioned.

Choi, Haecheon; Temam, Roger

1993-01-01

444

Analog table look-up device identifies unknown terrain  

NASA Technical Reports Server (NTRS)

Table provides a probability map defining unknown terrain in terms of known terrain inputs. Device consists of analog transformation network and flying spot scanner. Information is useful to manufacturers and users of remote sensing equipment and applies to automated quality control.

Dye, R. H.

1972-01-01

445

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

446

Single particle diversity and mixing state measurements  

NASA Astrophysics Data System (ADS)

A newly developed framework for quantifying aerosol particle diversity and mixing state based on information-theoretic entropy is applied for the first time to single particle mass spectrometry field data. Single particle mass fraction estimates for black carbon, organic aerosol, ammonium, nitrate and sulfate, derived using single particle mass spectrometer, aerosol mass spectrometer and multi-angle absorption photometer measurements are used to calculate single particle species diversity (Di). The average single particle species diversity (D?) is then related to the species diversity of the bulk population (D?) to derive a mixing state index value (?) at hourly resolution. The mixing state index is a single parameter representation of how internally/externally mixed a particle population is at a given time. The index describes a continuum, with values of 0 and 100% representing fully external and internal mixing, respectively. This framework was applied to data collected as part of the MEGAPOLI winter campaign in Paris, France, 2010. Di values are low (~ 2) for fresh traffic and wood-burning particles that contain high mass fractions of black carbon and organic aerosol but low mass fractions of inorganic ions. Conversely, Di values are higher (~ 4) for aged carbonaceous particles containing similar mass fractions of black carbon, organic aerosol, ammonium, nitrate and sulfate. Aerosol in Paris is estimated to be 59% internally mixed in the size range 150-1067 nm, and mixing state is dependent both upon time of day and air mass origin. Daytime primary emissions associated with vehicular traffic and wood-burning result in low ? values, while enhanced condensation of ammonium nitrate on existing particles at night leads to higher ? values. Advection of particles from continental Europe containing ammonium, nitrate and sulfate leads to increases in D?, D? and ?. The mixing state index represents a useful metric by which to compare and contrast ambient particle mixing state at other locations globally.

Healy, R. M.; Riemer, N.; Wenger, J. C.; Murphy, M.; West, M.; Poulain, L.; Wiedensohler, A.; O'Connor, I. P.; McGillicuddy, E.; Sodeau, J. R.; Evans, G. J.

2014-06-01

447

[Drug mix-ups].  

PubMed

We investigated drug mix-ups at a Danish hospital. We found 115 drug mix-ups among 1,554 medication errors (7%). The majority were packing mix-ups with insulin, infusion fluids and prepared syringes. The most frequent cause of name confusions was illegible handwriting. Packing mix-up occurring during routine dispensing may be prevented with bar-coding, and package mix-ups occurring in acute situations may be prevented through better package design focusing on reducing the risk of mix-ups. PMID:19265609

Nielsen, Rie Harboe; Hellebek, Annemarie

2009-03-01

448

A novel angle-tuned thin film filter with low angle sensitivity  

NASA Astrophysics Data System (ADS)

An angle-tuned thin film narrowband filter is widely used in the dense wavelength division multiplexing (DWDM) system. With increase of incident angle of the thin film filter, the central wavelengths of both S-polarization and P-polarization will separate obviously and shift to short wavelength much faster, which will cause serious polarization sensitivity and angle sensitivity. In conventional angle-tuned thin film filters, the research works usually focus on the polarization sensitivity. However, their angle sensitivity is very high because the effective refractive indexes of their spacer are very low. Their precision of the angle controlling system is very rigorous (less than 0.005°) and their incident angles are usually less than 20°, which will limit their wavelength tuning range. In the present paper, we propose and fabricate a novel 100 GHz angle-tuned thin film filter stack with low angle sensitivity which uses the high refractive index material ? -Si as the spacer and its incident angle can be expanded to 32°. Using the polarization beam-splitters and the half wave plates, this angle-tuned thin film filter can also eliminate the polarization sensitivity. The simulation results and the experiments show that the angle-tuned thin film filter with low angle sensitivity has a effective tuning range of 40 nm, which can cover the whole C-band and its precision of the angle control is relatively easy (more than 0.05°).

Yu, Kan; Liu, Yuanyuan; Yin, Juanjuan; Bao, Jiaqi

2015-05-01

449

High angle of attack hypersonic aerodynamics  

NASA Technical Reports Server (NTRS)

A new aerodynamics force model is presented which is based on modified Newtonian theory and empirical correlations. The algebraic model was developed for complete vehicles from take off to orbital speeds and for large angles of attack. Predictions are compared to results for a wind tunnel model at a Mach number of 20, and the full scale Shuttle Orbiter for Mach numbers from 0.25 to 20 for angles of attack from 0 to 50 deg. The maximum shuttle orbiter lift/drag at Mach 10 and 20 is 1.85 at 20-deg angle-of-attack. Aerodynamic force predictions are made for a transatmospheric vehicle, which is a derivative of the Shuttle Orbiter, for Mach numbers from 4 to 27 at angles of attack from 5 to 40 deg. Predicted aerodynamic force data indicate that lift/drag ratios of 5.2 at Mach number 10 and 3.6 at Mach number 26 are obtainable. Changes in force coefficients with changes in: nose angle, sweep angle, and (volume exp 2/3)/planform area are quantified for Mach numbers of 10 and 26. Lift/drag ratios increase with decreasing nose angle and (volume exp 2/3)/planform area and increasing wing sweep angle. Lift/drag ratios are independent of these variables for angles of attack in excess of 20 deg at Mach 10 and 30 deg at Mach 26.

Harloff, Gary J.

1987-01-01

450

Pitch Angle Survey of GOODS Spiral Galaxies  

NASA Astrophysics Data System (ADS)

This research looks at how the pitch angles of galaxies change over scales of cosmic time. We measure the pitch angle, or tightness of spiral winding, using a new code, Spirality. We then compare the results to those obtained from established software, 2DFFT (2 Dimensional Fast Fourier Transform). We investigate any correlation between pitch angle and redshift, or distance from Earth. Previous research indicates that the pitch angle of a galaxy correlates with its central bulge mass and the mass of its central black hole. Thus any evolution in the distribution of pitch angles could ultimately prove to be indicative of evolution in the supermassive black hole mass function. Galaxies from the Hubble GOODS (Great Observatories Origins Deep Survey) North and South were measured. We found that there was strong agreement between Spirality and 2DFFT measurements. Spirality measured the pitch angle of the GOODS galaxies with a lower error than 2DFFT on average. With both software a correlation between pitch angle and redshift was found. Spirality observed a 6.150 increase in pitch per unit redshift. The increase in pitch angle with redshift suggests that in the past galaxies had higher pitch angles, which could be indicative of lower central black hole masses (or, more directly, central bulge masses).

Boe, Benjamin; Kennefick, Daniel; Arkansas Galaxy Evolution Survey, Arkansas Center for Space; Planetary Sciences

2015-01-01

451

Tri-meson-mixing of $?$-$?$-$?'$ and $?$-$?$-$?$ in the light-cone quark model  

E-print Network

The radiative transition form factors of the pseudoscalar mesons {$\\pi$, $\\eta$, $\\eta'$} and the vector mesons {$\\rho$, $\\omega$, $\\phi$} are restudied with $\\pi$-$\\eta$-$\\eta'$ and $\\rho$-$\\omega$-$\\phi$ in tri-meson-mixing pattern, which is described by tri-mixing matrices in the light-cone constituent quark model. The experimental transition decay widths are better reproduced with tri-meson-mixing than previous results in a two-mixing-angle scenario of only two-meson $\\eta$-$\\eta'$ mixing and $\\omega$-$\\phi$ mixing.

Wen Qian; Bo-Qiang Ma

2009-12-03

452

Microwave background constraints on mixing of photons with hidden photons  

SciTech Connect

Various extensions of the Standard Model predict the existence of hidden photons kinetically mixing with the ordinary photon. This mixing leads to oscillations between photons and hidden photons, analogous to the observed oscillations between different neutrino flavors. In this context, we derive new bounds on the photon-hidden photon mixing parameters using the high precision cosmic microwave background spectral data collected by the Far Infrared Absolute Spectrophotometer instrument on board of the Cosmic Background Explorer. Requiring the distortions of the CMB induced by the photon-hidden photon mixing to be smaller than experimental upper limits, this leads to a bound on the mixing angle {chi}{sub 0} {approx}< 10{sup -7}-10{sup -5} for hidden photon masses between 10{sup -14} eV and 10{sup -7} eV. This low-mass and low-mixing region of the hidden photon parameter space was previously unconstrained.

Mirizzi, Alessandro [Max-Planck-Institut fuer Physik (Werner Heisenberg Institut), Foehringer Ring 6, 80805 Muenchen (Germany)] [Max-Planck-Institut fuer Physik (Werner Heisenberg Institut), Foehringer Ring 6, 80805 Muenchen (Germany); Redondo, Javier [Deutsches Elektronen Synchrotron, Notkestrasse 85, 22607 Hamburg (Germany)] [Deutsches Elektronen Synchrotron, Notkestrasse 85, 22607 Hamburg (Germany); Sigl, Guenter, E-mail: amirizzi@mppmu.mpg.de, E-mail: javier.redondo@desy.de, E-mail: sigl@mail.desy.de [II. Institut fuer theoretische Physik, Universitaet Hamburg, Luruper Chaussee 149, 22761 Hamburg (Germany)] [II. Institut fuer theoretische Physik, Universitaet Hamburg, Luruper Chaussee 149, 22761 Hamburg (Germany)

2009-03-15

453

Divergent-ray projection method for measuring the flapping angle, lag angle, and torsional angle of a bumblebee wing  

NASA Astrophysics Data System (ADS)

A divergent-ray projection (DRP) method was developed for measuring the flapping angle, lag angle, and torsional angle of bumblebee wing during beating motion. This new method can measure the spatial coordinates of an insect wing by digitizing the images that are projected by two divergent laser rays from different directions. The advantage of the DRP method is its ability to measure those three angles simultaneously using only one high-speed camera. The resolution of the DRP method can be changed easily by adjusting system parameters to meet the needs of different types of objects. The measurement results for these angles of a bumblebee wing probe the effectiveness of the DRP method in studying the flight performance of insects.

Zeng, Lijiang; Matsumoto, Hirokazu; Kawachi, Keiji

1996-11-01

454

Mixed-Status Couples  

MedlinePLUS

... Hospitalization and Palliative Care Friends & Family Dating and Marriage Having Children Mixed-Status Couples Discrimination Legal Issues ... safe sex and HIV. Friends and Family Dating & Marriage Having Children Mixed-Status Couples Related Topics on ...

455

Mixing in astrophysics  

SciTech Connect

Turbulent mixing plays a vital role in many fields in astronomy. Here I review a few of these sites, discuss the importance of this turbulent mixing and the techniques used by astrophysicists to solve these problems.

Fryer, Christopher Lee [Los Alamos National Laboratory

2011-01-07

456

Length shortening and surfactant mixing behavior of nonionic/ionic mixed cylindrical micelle  

NASA Astrophysics Data System (ADS)

Cylindrical micelles, which are surfactant self-assembled structures with nm scale, usually grow in length as surfactant concentration increases. Small angle neutron scattering of nonionic/ionic (C 12E 5/DTAB) mixed cylindrical micellar solution showed the shape of aggregates maintained the cylindrical geometry while the micellar length shortened as the fraction of ionic surfactant increased. Unexpectedly, we observed, for the first time, the micellar length shortened as total surfactant concentration increased at constant DTAB mole fraction. This observation suggests that strong non-ideal mixing of the surfactants in the cylindrical micelles, leading to an end-cap energy lowering with increasing concentration, is responsible for the length shortening.

Kim, Sanghyun; Kwon, Su Yong; Moon, Jun hyuk; Kim, Mahn Won

2008-10-01

457

A generalized technique for using cones and dihedral angles in attitude determination, revision 1  

NASA Technical Reports Server (NTRS)

Analytic development is presented for a general least squares attitude determination subroutine applicable to spinning satellites. The method is founded on a geometric approach which is completely divorced from considerations relating to particular types and configurations of onboard attitude sensors. Any mix of sensor measurements which can be first transformed (outside the program) to cone or dihedral angle data can be processed. A cone angle is an angle between the spin axis and a known direction line in space; a dihedral angle is an angle between two planes formed by the spin axis and each of two known direction lines. Many different kinds of sensor data can be transformed to these angles, which in turn constitute the actual program inputs, so that the subroutine can be applied without change to a variety of satellite missions. Either a constant or dynamic spin axis model can be handled. The program is also capable of solving for fixed biases in the input angles, in addition to the spin axis attitude solution.

Werking, R. D.

1973-01-01

458

A Climbing Class' Reinvention of Angles  

ERIC Educational Resources Information Center

A previous study shows how a twelve-year-old girl discovers angles in her narrative from a climbing trip. Based on this research, the girl's class takes part in one day of climbing and half a day of follow-up work at school. The students mathematise their climbing with respect to angles and they express themselves in texts and drawings. Their…

Fyhn, Anne Birgitte

2008-01-01

459

Large angle spin-echo imaging.  

PubMed

A study was undertaken to assess the use of excitation flip angles greater than 90 degrees for T1 weighted spin-echo (SE) imaging with a single 180 degrees refocusing pulse and short TR values. Theoretical predictions of signal intensity for SE images with excitation pulse angles of 90-180 degrees were calculated based on the Bloch equations and then measured experimentally from MR images of MnCl2 phantoms of various concentrations. Liver signal-to-noise ratios (SNR) and liver-spleen contrast-to-noise ratios (CNR) were measured from breathhold MR images of the upper abdomen in 16 patients using 90 and 110 degrees excitation flip angles. The theoretical predictions showed significant improvements in SNR with excitation flip angles > 90 degrees, which were more pronounced at small TR values. The phantom studies showed reasonably good agreement with the theoretical predictions in correlating the excitation pulse angle with signal intensity. In the human imaging studies, the 110 degrees excitation pulse angle resulted in a 7.4% (p < .01) increase in liver SNR and an 8.2% (p = .2) increase in liver-spleen CNR compared to the 90 degrees pulse angle at TR = 275 ms. Increased signal intensity resulting from the use of large flip angle excitation pulses with a single echo SE pulse sequence was predicted and confirmed experimentally in phantoms and humans. PMID:7898278

DiIorio, G; Brown, J J; Borrello, J A; Perman, W H; Shu, H H

1995-01-01

460

Automatic star-horizon angle measurement system  

NASA Technical Reports Server (NTRS)

Automatic star horizontal angle measuring aid for general navigational use incorporates an Apollo type sextant. The eyepiece of the sextant is replaced with two light detectors and appropriate circuitry. The device automatically determines the angle between a navigational star and a unique point on the earths horizon as seen on a spacecraft.

Koerber, K.; Koso, D. A.; Nardella, P. C.

1969-01-01

461

Vision only Presented angle (Visual / Body)  

E-print Network

Vision only Presented angle (Visual / Body) 45º / 30º 60º / 40º 75º / 50º Reproductedrotationangle rotation Vision + Body (same gain) Presented angle (Visual / Body) 45º / 30º 60º / 40º 75º / 50º Reproductedrotationangle(º) 0 10 20 30 40 50 60 70 80 Visual rotation Body rotation Vision + Body (different gain

462

Firing angle optimisation for chain cell converters  

Microsoft Academic Search

Firing angles for chain cell multi-level converters can be optimised to reduce waveform distortion. Optimisation techniques have previously been developed that calculate the required firing angles, but these techniques fall short of accurate optimisation due to over-simplification of the problem. Established optimisation routines often only work on a subset of possible converter modes, hence optimal solutions are not produced for

D. W. Sandells; T. C. Green

2001-01-01

463

Classification procedure in limited angle tomography system  

SciTech Connect

In this work we propose the use of limited angle reconstruction algorithms combined with a procedure for defect detection and feature evaluation in three dimensions. The procedure consists of the following steps: acquisition of the X-ray projections, approximated limited angle 3D image reconstruction, and image preprocessing and classification.

Chlewicki, W.; Baniukiewicz, P.; Chady, T.; Brykalski, A. [Faculty of Electrical Engineering, Westpomeranian University of Technology, Szczecin (Poland)

2011-06-23

464

Development of Tibiofemoral Angle in Korean Children  

PubMed Central

This study was performed to identify the chronological changes of the knee angle or the tibiofemoral angles in normal healthy Korean children. Full-length anteroposterior view standing radiographs of 818 limbs of 452 Korean children were analyzed. The overall patterns of the chronological changes in the knee angle were similar to those described previously in western or Asian children, but the knee angle development was delayed, i.e., genu varum before 1 yr, neutral at 1.5 yr, increasing genu valgum with maximum a value of 7.8° at 4 yr, followed by a gradual decrease to approximately 5-6° of genu valgum of the adult level at 7 to 8 yr of age. These normative data on chronological changes of knee angles should be taken into consideration when evaluating lower limb alignment in children. PMID:18756063

Yoo, Jae Ho; Cho, Tae-Joon; Chung, Chin Youb; Yoo, Won Joon

2008-01-01

465

Reliable measurement of the receding contact angle.  

PubMed

Surface wettability is usually evaluated by the contact angle between the perimeter of a water drop and the surface. However, this single measurement is not enough for proper characterization, and the so-called advancing and receding contact angles also need to be measured. Measuring the receding contact angle can be challenging, especially for extremely hydrophobic surfaces. We demonstrate a reliable procedure by using the common needle-in-the-sessile-drop method. Generally, the contact line movement needs to be followed, and true receding movement has to be distinguished from "pseudo-movement" occurring before the receding angle is reached. Depending on the contact angle hysteresis, the initial size of the drop may need to be surprisingly large to achieve a reliable result. Although our motivation for this work was the characterization of superhydrophobic surfaces, we also show that this method works universally ranging from hydrophilic to superhydrophobic surfaces. PMID:23451825

Korhonen, Juuso T; Huhtamäki, Tommi; Ikkala, Olli; Ras, Robin H A

2013-03-26

466

Child deaths of unknown cause: review of 7 years' experience.  

PubMed

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

Bowen, Kathryn A; Marshall, William N

2004-01-01

467

PERIOD ESTIMATION OF UNKNOWN PERIODIC PERTURBATION IN BIPED BALANCE CONTROL  

E-print Network

process using the ankle strategy model of the biped balance. However, the period estimation based can maintain upright posture by changing the joint angle of the ankle: Human firstly maintains words, humans can learn the movement of the ankle as a periodic motion pattern. In our previous papers

Ito, Satoshi

468

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

469

Fever of unknown origin (FUO) due to Legionnaire's disease.  

PubMed

Fevers of unknown origin (FUOs) may be due to any of over 200 different disorders. We present a most unusual case of an FUO in a returning traveler from the Dominican Republic. Work-up for Q fever, Brucellosis, Bartonella, malaria and HIV were negative, but very highly elevated ESRs and ferritin levels suggested possible Legionnaire's disease. This is the third reported case of Legionnaire's disease presenting as an FUO. PMID:25444558

Muñoz-Gómez, Sigridh; Cunha, Burke A

2015-01-01

470

Design of suboptimal robust controllers under unknown weights of perturbations  

Microsoft Academic Search

In the classical formulations of the problems of design of the robust optimal controllers, the equations of the nominal plant\\u000a and the weights of the permissible perturbations are assumed to be known. In the present paper, consideration was given to\\u000a a nonclassical formulation of the design problem where the weights of perturbations are assumed to be unknown and subject\\u000a to

V. F. Sokolov

2007-01-01

471

Photographic copy of photograph, photographer unknown, 1 November 1905 (original ...  

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

Photographic copy of photograph, photographer unknown, 1 November 1905 (original print located at U.S. Bureau of Reclamation Upper Columbia Area Office, Yakima, Washington). "VIEW SHOWING LOCATION OF PROPOSED DAM SITE AT OUTLET OF LAKE KACHESS, WN., JUST BELOW PRESENT OLD DAM" - Kachess Dam, 1904 Cascade Canal Company Crib Dam, Kachess River, 1.5 miles north of Interstate 90, Easton, Kittitas County, WA

472

Discrete-Time Feedback Error Learning for Unknown Nonlinear Systems  

Microsoft Academic Search

In this study, the technique of discrete-time feedback error learning for nonlinear systems(DTFELN) is extended to control unknown nonlinear systems. First, the relationship between DTFEL and nonlinear discrete-time adaptive control with adaptive feedback linearization is discussed. It shows that DTFEL can be interpreted as a form of nonlinear adaptive control. Second, Lyapunov analysis of the controlled system is presented. It

Sirisak Wongsura; Waree Kongprawechnon

2007-01-01

473

Spread-Spectrum Carrier Estimation With Unknown Doppler Shift  

NASA Technical Reports Server (NTRS)

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.

DeLeon, Phillip L.; Scaife, Bradley J.

1998-01-01

474

Adaptive control of plants with unknown dead-zones  

Microsoft Academic Search

Model reference adaptive controllers are designed for plants with unknown dead-zones. Several control strategies are investigated in which two sets of adjustable parameters, one belonging to a dead-zone inverse and the other to a linear controller, are either kept fixed or adaptively updated. The developed adaptive control schemes ensure boundedness of all closed-loop signals and reduce the tracking error

Gang Tao; P. V. Kokotovic

1994-01-01

475

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

476

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

477

27. Photocopy of photograph dated ca. 1940; photographer unknown; original ...  

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

27. Photocopy of photograph dated ca. 1940; photographer unknown; original filed as MR2.9/SP8/r374 in Audio-Visual Collection Minnesota Historical Society, St. Paul; THREE-QUARTER VIEW SHOWING WEST SIDE AND SOUTH FRONT AFTER SECOND-STORY ADDITION; LOOKING NORTHEAST - Northwest Airways Hangar & Administration Building, 590 Bayfield Street, St. Paul Downtown Airport (Holman), Saint Paul, Ramsey County, MN

478

Estimation of unknown variable parameters in moving boundary problems  

NASA Technical Reports Server (NTRS)

The problem of estimating unknown variable parameters appearing in moving boundary problems is considered; these are specifically nonlinear diffusion equations defined on a moving spatial domain. A spline-based approximation method that results in a sequence of computationally tractable approximate parameter estimation problems has been developed. A convergence result is proved for a certain class of these moving boundary problems. The paper is concluded with a set of representative numerical examples.

Murphy, K. A.

1992-01-01

479

Earth Limb and Clouds over Open Ocean, Location Unknown  

NASA Technical Reports Server (NTRS)

A northern hemisphere tropical storm over open ocean - location unknown, can be seen forming by the loosly defined cyclonic spiral gyre within the cumulonimbus clouds. The storm can be readily identified as being in the northern hemisphere by the counter-clockwise rotation of the gyre. Because of the Earth's rotation induced coriolis effect, all northern hemisphere cyclonic circulations rotate in a counter-clockwise spiral and all those in the southern hemisphere rotate in a clockwise spiral.

1981-01-01

480

Nanoscale Mixing of Soft Solids  

SciTech Connect

Assessing the state of mixing on the molecular scale in soft solids is challenging. Concentrated solutions of micelles formed by self-assembly of polystyrene-block-poly(ethylene-alt-propylene) (PS-PEP) diblock copolymers in squalane (C{sub 30}H{sub 62}) adopt a body-centered cubic (bcc) lattice, with glassy PS cores. Utilizing small-angle neutron scattering (SANS) and isotopic labeling ({sup 1}H and {sup 2}H (D) polystyrene blocks) in a contrast-matching solvent (a mixture of squalane and perdeuterated squalane), we demonstrate quantitatively the remarkable fact that a commercial mixer can create completely random mixtures of micelles with either normal, PS(H), or deuterium-labeled, PS(D), cores on a well-defined bcc lattice. The resulting SANS intensity is quantitatively modeled by the form factor of a single spherical core. These results demonstrate both the possibility of achieving complete nanoscale mixing in a soft solid and the use of SANS to quantify the randomness.

Choi, Soo-Hyung; Lee, Sangwoo; Soto, Haidy E.; Lodge, Timothy P.; Bates, Frank S. (UMM); (Texas)

2013-03-07

481

Assisted assignment of ligands corresponding to unknown electron density  

PubMed Central

A semi-automated computational procedure to assist in the identification of bound ligands from unknown electron density has been developed. The atomic surface surrounding the density blob is compared to a library of three-dimensional ligand binding surfaces extracted from the Protein Data Bank (PDB). Ligands corresponding to surfaces which share physicochemical texture and geometric shape similarities are considered for assignment. The method is benchmarked against a set of well represented ligands from the PDB, in which we show that we can identify the correct ligand based on the corresponding binding surface. Finally, we apply the method during model building and refinement stages from structural genomics targets in which unknown density blobs were discovered. A semi-automated computational method is described which aims to assist crystallographers with assigning the identity of a ligand corresponding to unknown electron density. Using shape and physicochemical similarity assessments between the protein surface surrounding the density and a database of known ligand binding surfaces, a plausible list of candidate ligands are identified for consideration. The method is validated against highly observed ligands from the Protein Data Bank and results are shown from its use in a high-throughput structural genomics pipeline. PMID:20091237

Binkowski, T. Andrew; Cuff, Marianne; Nocek, Boguslaw; Chang, Changsoo; Joachimiak, Andrzej

2010-01-01

482

Unknown Quantum States and Operations,a Bayesian View  

NASA Astrophysics Data System (ADS)

The classical de Finetti theorem provides an operational definition of the concept of an unknown probability in Bayesian probability theory, where probabilities are taken to be degrees of belief instead of objective states of nature. In this chapter, we motivate and review two results that generalize de Finettis theorem to the quantum mechanical setting: Namely a de Finetti theorem for quantum states and a de Finetti theorem for quantum operations. The quantum-state theorem, in a closely analogous fashion to the original de Finetti theorem, deals with exchangeable density-operator assignments and provides an operational definition of the concept of an unknown quantum state in quantum-state tomography. Similarly, the quantum-operation theorem gives an operational definition of an unknown quantum operation in quantum-process tomography. These results are especially important for a Bayesian interpretation of quantum mechanics, where quantum states and (at least some) quantum operations are taken to be states of belief rather than states of nature.

Fuchs, Christopher A.; Schack, Rüdiger

483

Assisted assignment of ligands corresponding to unknown electron density.  

SciTech Connect

A semi-automated computational procedure to assist in the identification of bound ligands from unknown electron density has been developed. The atomic surface surrounding the density blob is compared to a library of three-dimensional ligand binding surfaces extracted from the Protein Data Bank (PDB). Ligands corresponding to surfaces which share physicochemical texture and geometric shape similarities are considered for assignment. The method is benchmarked against a set of well represented ligands from the PDB, in which we show that we can identify the correct ligand based on the corresponding binding surface. Finally, we apply the method during model building and refinement stages from structural genomics targets in which unknown density blobs were discovered. A semi-automated computational method is described which aims to assist crystallographers with assigning the identity of a ligand corresponding to unknown electron density. Using shape and physicochemical similarity assessments between the protein surface surrounding the density and a database of known ligand binding surfaces, a plausible list of candidate ligands are identified for consideration. The method is validated against highly observed ligands from the Protein Data Bank and results are shown from its use in a high-throughput structural genomics pipeline.

Binkowski, T. A.; Cuff, M.; Nocek, B.; Chang, C.; Joachimiak, A.; Biosciences Division

2010-01-03

484

Neutrino Mixing and Neutrino Telescopes  

E-print Network

Measuring flux ratios of ultra-high energy neutrinos is an alternative method to determine the neutrino mixing angles and the CP phase delta. We conduct a systematic analysis of the neutrino mixing probabilities and of various flux ratios measurable at neutrino telescopes. The considered cases are neutrinos from pion, neutron and muon-damped sources. Explicit formulae in case of mu-tau symmetry and its special case tri-bimaximal mixing are obtained, and the leading corrections due to non-zero theta_{13} and non-maximal theta_{23} are given. The first order correction is universal as it appears in basically all ratios. We study in detail its dependence on theta_{13}, theta_{23} and the CP phase, finding that the dependence on theta_{23} is strongest. The flavor compositions for the considered neutrino sources are evaluated in terms of this correction. A measurement of a flux ratio is a clean measurement of the universal correction (and therefore of theta_{13}, theta_{23} and delta) if the zeroth order ratio does not depend on theta_{12}. This favors pion sources over the other cases, which in turn are good candidates to probe theta_{12}. The only situations in which the universal correction does not appear are certain ratios in case of a neutron and muon-damped source, which depend mainly on theta_{12} and receive only quadratic corrections from the other parameters. We further show that there are only two independent neutrino oscillation probabilities, give the allowed ranges of the considered flux ratios and of all probabilities, and show that none of the latter can be zero or one.

Werner Rodejohann

2007-01-03

485

Generation mixing and CP-violation, standard and beyond  

SciTech Connect

We discuss several issues related to the observed generation pattern of quarks and leptons. Among the main topics: Masses, angles and phases and possible relations among them, a possible fourth generation of quarks and leptons, new bounds on neutrino masses, comments on the recently observed mixing in the B - anti B system, CP-violation, and recent proposals for a b-quark ''factory''.

Harari, H.

1987-05-01

486

Mixed formulation for frictionless contact problems  

NASA Technical Reports Server (NTRS)

Simple mixed finite element models and a computational precedure are presented for the solution of frictionless contact problems. The analytical formulation is based on a form of Reissner's large rotation theory of the structure with the effects of transverse shear deformation included. The contact conditions are incorporated into the formulation by using a perturbed Lagrangian approach with the fundamental unknowns consisting of the internal forces (stress resultants), the generalized displacements, and the Lagrange multipliers associated with the contact conditions. The element characteristic array are obtained by using a modified form of the two-field Hellinger-Reissner mixed variational principle. The internal forces and the Lagrange multipliers are allowed to be discontinuous at interelement boundaries. The Newton-Raphson iterative scheme is used for the solution of the nonlinear algebraic equations, and the determination of the contact area and the contact pressures.

Noor, Ahmed K.; Kim, Kyun O.

1989-01-01

487

An algebraic framework for the design of nonlinear observers with unknown inputs  

E-print Network

and the unknown inputs should be invertible. This assumption is also known as the observability matching conditionAn algebraic framework for the design of nonlinear observers with unknown inputs Jean-Pierre BARBOT with unknown inputs are characterized via differentially al- gebraic techniques. State variables and unknown

Boyer, Edmond

488

Noncircular-PARAFAC for 2D-DOA estimation of noncircular signals in arbitrarily spaced acoustic vector-sensor array subjected to unknown locations  

NASA Astrophysics Data System (ADS)

In this paper, we propose a noncircular-parallel factor (NC-PARAFAC) algorithm for two-dimensional direction of arrival (DOA) estimation of noncircular signals for acoustic vector-sensor array. The proposed algorithm enhances the angle estimation performance via utilizing the noncircularity of the signals, and it can be suitable for arbitrary array subjected to unknown locations and achieve automatically paired two-dimensional angle estimation. The proposed algorithm has better angle estimation performance than estimation of signal parameters via rotational invariance technique, PARAFAC algorithm, and propagator method. Furthermore, the proposed algorithm has a lower computational complexity than the PARAFAC algorithm. We also derive the Crámer-Rao bound of DOA estimation of noncircular signal in acoustic vector-sensor array. The simulation results verify the effectiveness of the algorithm.

Zhang, Xiaofei; Cao, Renzheng; Zhou, Ming

2013-12-01

489

Angle sensing with ferromagnetic nanowire arrays  

NASA Astrophysics Data System (ADS)

Hysteresis loops and Ferromagnetic Resonance (FMR) linewidths of Nickel ferromagnetic nanowire arrays are measured versus angle ?H between the applied magnetic field angle and the common nanowire axis. Using Preisach analysis, we extract from the hysteresis loop an interaction parameter ?i that strongly depends on ?H. Extending the analysis to FMR lineshapes, we deduce a strong dependence of the FMR field linewidth ?H on ?H through the interaction parameter ?i. Existence of a link between static (hysteresis) and dynamic (FMR) cases through ?H might be exploited in contactless absolute angle sensing devices that could compete with inductive, Hall, and magnetoresistive devices.

Tannous, C.; Gieraltowski, J.

2014-01-01

490

Trigger Angle Targeting for Orbital Rendezvous  

NASA Astrophysics Data System (ADS)

Orbital rendezvous missions often have a co-elliptic approach phase where a chaser vehicle approaches an object with a near-constant relative altitude and relative velocity. A well known orbital rendezvous technique is to trigger the Terminal Phase Initiation (TPI) maneuver when the apparent elevation of the target reaches some nominal angle. The best elevation trigger angle on which to initiate the final transfer maneuver must balance favorable performance characteristics and desirable operational simplicity. A detailed analysis is given deriving the best trigger angles and showing how these results correlate to past missions and how they could potentially influence future ones.

Woffinden, David C.; Ben Rose, M.; Geller, David K.

2008-12-01

491

Orientation Angles of a Pulsar's Polarization Vector  

E-print Network

A statistical model of the polarization of pulsar radio emission is used to derive the general statistics of a polarization vector's orientation angles. The theoretical distributions are compared with orientation angle histograms computed from single-pulse, polarization observations of PSR B2020+28. The favorable agreement between the theoretical and measured distributions lends support to the underlying assumptions of the statistical model, and demonstrates, like recent work on other pulsars, that the handedness of circular polarization is associated with the radiation's orthogonally polarized modes. Comprehensive directional statistics of the vector's orientation angles are also derived, and are shown to follow the Watson bipolar and Fisher distributions in its limiting forms.

Mark M. McKinnon

2006-03-17

492

Wide-angle vision for road views  

NASA Astrophysics Data System (ADS)

The field-of-view of a wide-angle image is greater than (say) 90 degrees, and so contains more information than available in a standard image. A wide field-of-view is more advantageous than standard input for understanding the geometry of 3D scenes, and for estimating the poses of panoramic sensors within such scenes. Thus, wide-angle imaging sensors and methodologies are commonly used in various road-safety, street surveillance, street virtual touring, or street 3D modelling applications. The paper reviews related wide-angle vision technologies by focusing on mathematical issues rather than on hardware.

Huang, F.; Fehrs, K.-K.; Hartmann, G.; Klette, R.

2013-03-01

493

Phase-angle controller for Stirling engines  

NASA Technical Reports Server (NTRS)

An actuator includes a restraint link adapted to be connected with a pivotal carrier arm for a force transfer gear interposed between the crankshaft for an expander portion of a Stirling engine and a crankshaft for the displacer portion of the engine. The restraint link is releasably trapped hydraulic fluid for selectively establishing a phase angle relationship between the crankshaft. A second embodiment incorporates a hydraulic coupler for use in varying the phase angle of gear-coupled crank fpr a Stirling engine whereby phase angle changes are obtainable.

Mcdougal, A. R. (inventor)

1980-01-01

494

Effect of {eta}-{eta}{sup '} mixing on D{yields}PV decays  

SciTech Connect

Charmed meson decays to a light pseudoscalar (P) and light vector (V) meson are analyzed taking account of {eta}-{eta}{sup '} mixing. A frequently-used octet-singlet mixing angle of 19.5 degree sign is compared with a value of 11.7 degree sign favored by a recent analysis of D{yields}PP decays.

Bhattacharya, Bhubanjyoti; Rosner, Jonathan L. [Enrico Fermi Institute and Department of Physics, University of Chicago, 5640 S. Ellis Avenue, Chicago, Illinois 60637 (United States)

2010-08-01

495

Spherical Trigonometry of the Projected Baseline Angle  

E-print Network

The basic geometry of a stellar interferometer with two telescopes consists of a baseline vector and a direction to a star. Two derived vectors are the delay vector, and the projected baseline vector in the plane of the wavefronts of the stellar light. The manuscript deals with the trigonometry of projecting the baseline further outwards onto the celestial sphere. The position angle of the projected baseline is defined, measured in a plane tangential to the celestial sphere, tangent point at the position of the star. This angle represents two orthogonal directions on the sky, differential star positions which are aligned with or orthogonal to the gradient of the delay recorded in the u-v plane. The North Celestial Pole is chosen as the reference direction of the projected baseline angle, adapted to the common definition of the "parallactic" angle.

Mathar, R J

2006-01-01

496

Nanofluid surface wettability through asymptotic contact angle.  

PubMed

This investigation introduces the asymptotic contact angle as a criterion to quantify the surface wettability of nanofluids and determines the variation of solid surface tensions with nanofluid concentration and nanoparticle size. The asymptotic contact angle, which is only a function of gas-liquid-solid physical properties, is independent of droplet size for ideal surfaces and can be obtained by equating the normal component of interfacial force on an axisymmetric droplet to that of a spherical droplet. The technique is illustrated for a series of bismuth telluride nanofluids where the variation of surface wettability is measured and evaluated by asymptotic contact angles as a function of nanoparticle size, concentration, and substrate material. It is found that the variation of nanofluid concentration, nanoparticle size, and substrate modifies both the gas-liquid and solid surface tensions, which consequently affects the force balance at the triple line, the contact angle, and surface wettability. PMID:21338112

Vafaei, Saeid; Wen, Dongsheng; Borca-Tasciuc, Theodorian

2011-03-15

497

Inlets for high angles of attack  

NASA Technical Reports Server (NTRS)

Different inlet designs for high angle of attack STOL and VTOL applications were tested in a subsonic wind tunnel. Three removable entry lips having contraction ratios of 1.30, 1.34 and 1.38 were tested with a single diffuser. The internal contour of each entry lip was an ellipse with a major to minor axis of 2.0. Each lip and diffuser assembly was tested to determine its tolerance to angle of attack, first with a conventional centerbody and then with an extended centerbody. Results indicate that a large improvement in separation angle (determined as a function of lip contraction ratio and inlet flow) was obtained for the extended centerbody for all contraction ratios. Improved inlet tolerance to angle of attack was obtained by reducing the adverse pressure gradient downstream of the throat.

Miller, B. A.

1976-01-01

498

Ducted turbine theory with right angled ducts  

NASA Astrophysics Data System (ADS)

This paper describes the use of an inviscid approach to model a ducted turbine - also known as a diffuser augmented turbine - and a comparison of results with a particular one-dimensional theory. The aim of the investigation was to gain a better understanding of the relationship between a real duct and the ideal diffuser, which is a concept that is developed in the theory. A range of right angled ducts, which have a rim for a 90° exit angle, were modelled. As a result, the performance of right angled ducts has been characterised in inviscid flow. It was concluded that right angled ducts cannot match the performance of their associated ideal diffuser and that the optimum rotor loading for these turbines varies with the duct dimensions.

McLaren-Gow, S.; Jamieson, P.; Graham, J. M. R.

2014-06-01

499

Hawaii Ocean Mixing Experiment: Program Summary  

NASA Technical Reports Server (NTRS)

It is becoming apparent that insufficient mixing occurs in the pelagic ocean to maintain the large scale thermohaline circulation. Observed mixing rates fall a factor of ten short of classical indices such as Munk's "Abyssal Recipe." The growing suspicion is that most of the mixing in the sea occurs near topography. Exciting recent observations by Polzin et al., among others, fuel this speculation. If topographic mixing is indeed important, it must be acknowledged that its geographic distribution, both laterally and vertically, is presently unknown. The vertical distribution of mixing plays a critical role in the Stommel Arons model of the ocean interior circulation. In recent numerical studies, Samelson demonstrates the extreme sensitivity of flow in the abyssal ocean to the spatial distribution of mixing. We propose to study the topographic mixing problem through an integrated program of modeling and observation. We focus on tidally forced mixing as the global energetics of this process have received (and are receiving) considerable study. Also, the well defined frequency of the forcing and the unique geometry of tidal scattering serve to focus the experiment design. The Hawaiian Ridge is selected as a study site. Strong interaction between the barotropic tide and the Ridge is known to take place. The goals of the Hawaiian Ocean Mixing Experiment (HOME) are to quantify the rate of tidal energy loss to mixing at the Ridge and to identify the mechanisms by which energy is lost and mixing generated. We are challenged to develop a sufficiently comprehensive picture that results can be generalized from Hawaii to the global ocean. To achieve these goals, investigators from five institutions have designed HOME, a program of historic data analysis, modeling and field observation. The Analysis and Modeling efforts support the design of the field experiments. As the program progresses, a global model of the barotropic (depth independent) tide, and two models of the baroclinic (depth varying) tide, all validated with near-Ridge data, will be applied, to reveal the mechanisms of tidal energy conversion along the Ridge, and allow spatial and temporal integration of the rate of conversion. Field experiments include a survey to identify "hot spots" of enhanced mixing and barotropic to baroclinic conversion, a Nearfield study identifying the dominant mechanisms responsible for topographic mixing, and a Farfield program which quantifies the barotropic energy flux convergence at the Ridge and the flux divergence associated with low mode baroclinic waves radiation. The difference is a measure of the tidal power available for mixing at the Ridge. Field work is planned from years 2000 through 2002, with analysis and modeling efforts extending through early 2006. If successful, HOME will yield an understanding of the dominant topographic mixing processes applicable throughout the global ocean. It will advance understanding of two central problems in ocean science, the maintenance of the abyssal stratification, and the dissipation of the tides. HOME data will be used to improve the parameterization of dissipation in models which presently assimilate TOPEX-POSEIDON observations. The improved understanding of the dynamics and spatial distribution of mixing processes will benefit future long-term programs such as CLIVAR.

Ray, Richard D.; Chao, Benjamin F. (Technical Monitor)

2002-01-01

500

Cooking with Trail Mix  

E-print Network

soda ? teaspoon baking powder ? teaspoon cinnamon (if you like) ? cup trail mix What you need ? cup all-purpose flour ? teaspoon... it 1. Wash your hands; make sure your cooking area is clean. 2. Preheat the oven to 350 degrees F. 3. In a large bowl, mix sugar, applesauce, oil, egg and milk. 4. Add flour, baking soda, baking powder and cinnamon and mix it thoroughly. 5. Stir...

Anding, Jenna

2008-12-09