Sample records for tartust otsiti uude
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The ss(bar sign) component of the proton and the strangeness magnetic moment
DOE Office of Scientific and Technical Information (OSTI.GOV)
Riska, D. O.; Zou, B. S.
2006-07-11
The implications of the empirical indications for a positive strangeness magnetic moment on the possible configurations of the uudss(bar sign) component of the proton are analysed. A positive value for {mu}s is obtained in the ss(bar sign) configuration where the uuds subsystem is in an orbitally excited state with [4]FS[22]F[22]S flavor-spin symmetry, which is likely to have the lowest energy. The configurations in which the s-bar is orbitally excited, which include the conventional K+{lambda}0 configuration, with exception of that in which the uuds component has spin 2, yield negative values for {mu}s. The hidden strangeness analogues of recently proposed quarkmore » cluster models for the {theta}+ pentaquark give differing signs for {mu}s.« less
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Cold recycle pavement using urea urethane dispersion agent and rubber : final report.
DOT National Transportation Integrated Search
1994-12-01
This research study was a joint venture of the Oregon Department of Transportation (ODOT), Evans, Loosely, Inc., and Roseburg Paving Company, to evaluate the use of Urea Urethane Dispersion (UUD) agent, with finely ground tire rubber, high float emul...
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ss Component of the Proton and the Strangeness Magnetic Moment
DOE Office of Scientific and Technical Information (OSTI.GOV)
Zou, B.S.; Riska, D.O.; Helsinki Institute of Physics and Department of Physical Sciences, POB 64, 00014 University of Helsinki
2005-08-12
A complete analysis is given of the implications of the empirical indications for a positive strangeness magnetic moment {mu}{sub s} of the proton on the possible configurations of the uudss component of the proton. A positive value for {mu}{sub s} is obtained in the ss configuration where the uuds subsystem is in an orbitally excited state with [4]{sub FS}[22]{sub F}[22]{sub S} flavor-spin symmetry, which is likely to have the lowest energy. The configurations in which the s is orbitally excited, which include the conventional K{sup +}{lambda}{sup 0} configuration, with the exception of that in which the uuds component has spinmore » 2, yield negative values for {mu}{sub s}. The hidden strangeness analogues of recently proposed quark cluster models for the {theta}{sup +} pentaquark give differing signs for {mu}{sub s}.« less
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Lee, M.; Choi, E. S.; Huang, X.; ...
2014-12-01
Here we have performed magnetic, electric, thermal and neutron powder diffraction (NPD) experiments as well as density functional theory (DFT) calculations on Ba 3MnNb 2 O 9. All results suggest that Ba 3MnNb 2 O 9 is a spin-5/2 triangular lattice antiferromagnet (TLAF) with weak easy-axis anisotropy. At zero field, we observed a narrow two-step transition at T N1 = 3.4 K and T N2 = 3.0 K. The neutron diffraction measurement and the DFT calculation indicate a 120 spin structure in ab plane with out-of-plane canting at low temperatures. With increasing magnetic field, the 120 spin structure evolves intomore » up-up-down (uud) and oblique phases showing successive magnetic phase transitions, which fits well to the theoretical prediction for the 2D Heisenberg TLAF with classical spins. Ultimately, multiferroicity is observed when the spins are not collinear but suppressed in the uud and oblique phases.« less
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Strangeness spin, magnetic moment, and strangeness configurations of the proton
DOE Office of Scientific and Technical Information (OSTI.GOV)
An, C.S.; Riska, D.O.; Zou, B.S.
2006-03-15
The implications of the empirical signatures for the positivity of the strangeness magnetic moment {mu}{sub s} and the negativity of the strangeness contribution to the proton spin {delta}{sub s} on the possible uudss configurations of five quarks in the proton are analyzed. The empirical signs for the values for these two observables can only be obtained in configurations where the uuds subsystem is orbitally excited and the s antiquark is in the ground state. The configurations in which the s is orbitally excited, including the conventional K{sup +}{lambda}{sup 0} configuration, with the exception of that in which the uuds componentmore » has spin 2, yield negative values for {mu}{sub s}. Here, the strangeness spin {delta}{sub s}, strangeness magnetic moment {mu}{sub s}, and axial coupling constant G{sub A}{sup s} are calculated for all possible configurations of the uudss component of the proton. In the configuration with [4]{sub FS}[22]{sub F}[22]{sub S} flavor-spin symmetry, which is likely to have the lowest energy, {mu}{sub s} is positive and {delta}{sub s}{approx_equal}G{sub A}{sup s}{approx_equal}-1/3{mu}{sub s}.« less
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1981-04-01
approximately 5,000 square miles can bo covered by contamination at levels that would be hazardous to human life if the fallout had been deposited on a...shots over larger areas was necessary. On Shot 5 alternative methods were attempted. The Division of Biology and Medicine (DBM) of the Atomic...tvoluotion.nott, howtvtf, thai it it •mall Pont« «ithin Larga Cirelt-Com^iM ovtroll ml- Inity tf Mark II «htn uud «uk mtr^ad in « atar which it cantam
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Feehan, Lynne; Buie, Helen; Li, Linda; McKay, Heather
2013-12-24
High Resolution-Peripheral Quantitative Computed Tomography (HR-pQCT) is an emerging technology for evaluation of bone quality in Rheumatoid Arthritis (RA). However, there are limitations with standard HR-pQCT imaging protocols for examination of regions of bone commonly affected in RA. We developed a customized protocol for evaluation of volumetric bone mineral density (vBMD) and microstructure at the metacarpal head (MH), metacarpal shaft (MS) and ultra-ultra-distal (UUD) radius; three sites commonly affected in RA. The purpose was to evaluate short-term measurement precision for bone density and microstructure at these sites. 12 non-RA participants, individuals likely to have no pre-existing bone damage, consented to participate [8 females, aged 23 to 71 y [median (IQR): 44 (28) y]. The custom protocol includes more comfortable/stable positioning and adapted cortical segmentation and direct transformation analysis methods. Dominant arm MH, MS and UUD radius scans were completed on day one; repeated twice (with repositioning) three to seven days later. Short-term precision for repeated measures was explored using intraclass correlational coefficient (ICC), mean coefficient of variation (CV%), root mean square coefficient of variation (RMSCV%) and least significant change (LSC%95). Bone density and microstructure precision was excellent: ICCs varied from 0.88 (MH2 trabecular number) to .99 (MS3 polar moment of inertia); CV% varied from < 1 (MS2 vBMD) to 6 (MS3 marrow space diameter); RMSCV% varied from < 1 (MH2 full bone vBMD) to 7 (MS3 marrow space diameter); and LSC%95 varied from 2 (MS2 full bone vBMD to 21 (MS3 marrow space diameter). Cortical porosity measures were the exception; RMSCV% varying from 19 (MS3) to 42 (UUD). No scans were stopped for discomfort. 5% (5/104) were repeated due to motion during imaging. 8% (8/104) of final images had motion artifact graded > 3 on 5 point scale. In our facility, this custom protocol extends the potential for in vivo
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{phi} meson production in pp annihilation at rest
DOE Office of Scientific and Technical Information (OSTI.GOV)
Srisuphaphon, S.; Yan, Y.; Thailand Center of Excellence in Physics, Ministry of Education, Bangkok
2011-10-01
Apparent channel-dependent violations of the Okubo-Zwieg-Iizuka (OZI) rule in nucleon-antinucleon annihilation reactions in the presence of an intrinsic strangeness component in the nucleon are discussed. Admixture of ss quark pairs in the nucleon wave function enables the direct coupling to the {phi}-meson in the annihilation channel without violating the OZI rule. Three forms are considered in this work for the strangeness content of the proton wave function, namely, the uud cluster with a ss sea-quark component, kaon-hyperon clusters based on a simple chiral quark model, and the pentaquark picture uudss. Nonrelativistic quark model calculations reveal that the strangeness magnetic momentmore » {mu}{sub s} and the strangeness contribution to the proton spin {sigma}{sub s} from the first two models are consistent with recent experimental data, where {mu}{sub s} and {sigma}{sub s} are negative. For the third model, the uuds subsystem with the configurations [31]{sub FS}[211]{sub F}[22]{sub S} and [31]{sub FS}[31]{sub F}[22]{sub S} leads to negative values of {mu}{sub s} and {sigma}{sub s}. With effective quark line diagrams incorporating the {sup 3}P{sub 0} model, we give estimates for the branching ratios of the annihilation reactions at rest pp{yields}{phi}X (X={pi}{sup 0}, {eta}, {rho}{sup 0}, {omega}). Results for the branching ratios of {phi}X production from atomic pp s-wave states are for the first and third model found to be strongly channel dependent, in good agreement with measured rates.« less
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1981-06-01
which affect the corrosion of steel in concrete. The effects of moisture content [21, 22] of the concrete and the use of inhibitors in concrete mixes...use of inhibitors to reduce or eliminate corrosion. 3. The use of different alloys as rebar. 4. The use of cathodic protection in new and...8217- qq q or-wwr- - 4 m ON unlw Nr H E4E-4 0 vv o ~ o wq O % UU%D www AI L % z H Z 00 %ocnrj %o w o w (% N or csq r- qr IM c4 n NLn r- r -w 00 ’ 04
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Shao, Jie; Chen, Qing-Wen; Lv, Hua-Jun; He, Juan; Liu, Zhi-Feng; Lu, Yan-Na; Liu, Hai-Li; Wang, Guo-Dong; Wang, Yong
2017-04-07
Two GFPPS linked (+)-thalianatriene (1) and (-)-retigeranin B (2) sesterterpene synthase genes were identified from the genome of Arabidopsis thaliana. 1 possesses an unprecedented 11-6-5 tricyclic ring system, while 2 contains a characteristic 5-5-5-6-5 pentacyclic ring system. Their structures were determined by extensive NMR spectroscopy, chemical derivatization, and X-ray crystallography. The variable-temp NMR measurement of 3, a diepoxy-bearing derivative of 1, enables us to completely assign the NMR signals of the two conformers as 3a (67%, UUU) and 3b (33%, UUD). A plausible biosynthesis mechanism of 1 was proposed.
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1985-05-01
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NASA Astrophysics Data System (ADS)
Chen, M.; Wei, S.
2016-12-01
The serious damage of Mexico City caused by the 1985 Michoacan earthquake 400 km away indicates that urban areas may be affected by remote earthquakes. To asses earthquake risk of urban areas imposed by distant earthquakes, we developed a hybrid Frequency Wavenumber (FK) and Finite Difference (FD) code implemented with MPI, since the computation of seismic wave propagation from a distant earthquake using a single numerical method (e.g. Finite Difference, Finite Element or Spectral Element) is very expensive. In our approach, we compute the incident wave field (ud) at the boundaries of the excitation box, which surrounding the local structure, using a paralleled FK method (Zhu and Rivera, 2002), and compute the total wave field (u) within the excitation box using a parallelled 2D FD method. We apply perfectly matched layer (PML) absorbing condition to the diffracted wave field (u-ud). Compared to previous Generalized Ray Theory and Finite Difference (Wen and Helmberger, 1998), Frequency Wavenumber and Spectral Element (Tong et al., 2014), and Direct Solution Method and Spectral Element hybrid method (Monteiller et al., 2013), our absorbing boundary condition dramatically suppress the numerical noise. The MPI implementation of our method can greatly speed up the calculation. Besides, our hybrid method also has a potential use in high resolution array imaging similar to Tong et al. (2014).
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NASA Astrophysics Data System (ADS)
Rahayu; Soeprobowati, Tri Retnaningsih
2018-02-01
This article aims to analyze the implementation of state obligations and responsibility ensuring the availability of clean water as part of human rights in Karimunjawa islands. The analysis based on principle of the State obligations and responsibility to fulfill their citizen right. Water sources in Karimunjawa Islands is very limited. It depend on forest conservation. Around 9.600 peoples live in Karimunjawa Islands, but Karimunjawa is non groundwater basin region. It means, Karimunjawa doesn't have groundwater potential. The quantity of water depends on the season. The solution to maintain the sustainability of clean water is piping from water reservoir to residential areas. The problem is there are so many hotels in Karimunjawa islands, it disrupted the fulfillment of clean water. Besides utilizing water from reservoir, many hotels drilled the ground to get water. It had impact to the availibity of water in dry season and affected to fulfillment of water supply for Karimunjawa people. There is no specific regulation and policy to solve this problem. Clean water management is doing by Karimunjawa's people. Meanwhile, based on Mahkamah Konstitusi Decree number 85/PUU-XI/2013, state is a rights holder to dominate the water in accordance with the Articles 33 paragraph (2) and (3) UUD NRI 1945, so the government has an obligation to make a policy, regulations, management, and supervision.
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Responding book banning in indonesia
NASA Astrophysics Data System (ADS)
Aji, RNB; Artono; Liana, C.
2018-01-01
The prohibition of books conducted by the government through its apparatus without any due process of law is unfortunate. The Constitutional Court of the Republic of Indonesia (MKRI) in 2010 was decided that book banning is contradictory to the 1945 Constitution (UUD 1945). The purpose of this paper is to know Indonesia, according to the Constitutional Court must absolutely carry out the function of due process of law that is law enforcement in a judicial system when it wants to prohibit printed material which is a book, whether it is a book that is considered criticism and books that teach radicalism. It would be wise for anyone who disagrees with a book, and then responds by writing through a book. The result of this article is to support and suggest that the government and its apparatus in the state of the law should not arbitrarily impose a book ban. Likewise, people should not take violence action to respond this issue. In historical records, the prohibition of books without due process of law is always followed by the withdrawal of books and make people unable to deal with differences, especially in knowledge. That’s why, the government and its apparatus must create a conducive situation and support the creation of various perspectives in the framework of the progress of science through a book. It would implicate that people can respect in any perspective and thought.
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NASA Astrophysics Data System (ADS)
Friedman, J. I.
2001-01-01
In the period following World War II, there was a rapid development of particle physics. With the construction of synchrotrons and the development of detector technology, many new particles were discovered and the systematics of their interactions investigated. The invention of the bubble chamber played an especially important role in uncovering the rich array of hadrons that were discovered in this period.In 1961 Murray Gell-Mann [1] and Yuval Ne'eman [2] independently introduced a classification scheme, based on SU(3) symmetry, which placed hadrons into families on the basis of spin and parity. Like the periodic table for the elements, this scheme was predictive as well as descriptive, and various hadrons, such as the - , were predicted within this framework and were later discovered.In 1964 Gell-Mann [3] and George Zweig [4] independently proposed quarks as the building blocks of hadrons as a way of generating the SU(3) classification scheme. When the quark model was first proposed, it postulated three types of quarks: up (u), down (d), and strange (s), with charges 2/3, - 1/3, and - 1/3 respectively. Each of these was hypothesized to be a spin1/2 particle. In this model the nucleon (and all other baryons) is made up of three quarks, and each meson consists of a quark and an antiquark. For example, as the proton and neutron both have ero strangeness, they are (u,u,d) and (d,d,u) systems respectively.
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NASA Astrophysics Data System (ADS)
Akaishi, Yoshinori; Yamazaki, Toshimitsu
2017-11-01
We propose and examine a new form of high-density neutral composite of Λ* ≡K- p = (s u bar) ⊗ (uud), which may be called anti-Kaonic Proton Matter (KPM), or simply, Λ*-Matter, where substantial shrinkage of baryonic bound systems originating from the strong attraction of the (K bar N) I = 0 interaction takes place, providing a ground-state neutral baryonic system with a large energy gap. The mass of an ensemble of (K-p)m, where m, the number of the K- p pair, becomes larger than m ≈ 10, is predicted to drop down below that of its corresponding neutron ensemble, (n)m, since the attractive interaction is further increased by the Heitler-London type molecular covalency as well as by chiral symmetry restoration of the QCD vacuum. Since the seed clusters (K- p, K- pp and K-K- pp) are short-lived, the formation of such a stabilized relic ensemble, (K-p)m, may be conceived during the Big-Bang Quark Gluon Plasma (QGP) period in the early universe. At the final stage of baryogenesis a substantial amount of primordial (u bar , d bar)'s are transferred and captured into KPM, where the anti-quarks find places to survive forever. The expected KPM state may be cold, dense and neutral q bar q-hybrid (Quark Gluon Bound (QGB)) states,[ s (u bar ⊗ u) ud ] m, to which the relic of the disappearing anti-quarks plays an essential role as hidden components. KPM may also be produced during the formation and decay of neutron stars in connections with supernova explosions, and other forms may exist as strange quark matter in cosmic dusts.
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Brenner, Howard
2005-12-01
A quiescent single-component gravity-free gas subject to a small steady uniform temperature gradient T, despite being at rest, is shown to experience a drift velocity UD=-D* gradient ln T, where D* is the gas's nonisothermal self-diffusion coefficient. D* is identified as being the gas's thermometric diffusivity alpha. The latter differs from the gas's isothermal isotopic self-diffusion coefficient D, albeit only slightly. Two independent derivations are given of this drift velocity formula, one kinematical and the other dynamical, both derivations being strictly macroscopic in nature. Within modest experimental and theoretical uncertainties, this virtual drift velocity UD=-alpha gradient ln T is shown to be constitutively and phenomenologically indistinguishable from the well-known experimental and theoretical formulas for the thermophoretic velocity U of a macroscopic (i.e., non-Brownian) non-heat-conducting particle moving under the influence of a uniform temperature gradient through an otherwise quiescent single-component rarefied gas continuum at small Knudsen numbers. Coupled with the size independence of the particle's thermophoretic velocity, the empirically observed equality, U=UD, leads naturally to the hypothesis that these two velocities, the former real and the latter virtual, are, in fact, simply manifestations of the same underlying molecular phenomenon, namely the gas's Brownian movement, albeit biased by the temperature gradient. This purely hydrodynamic continuum-mechanical equality is confirmed by theoretical calculations effected at the kinetic-molecular level on the basis of an existing solution of the Boltzmann equation for a quasi-Lorentzian gas, modulo small uncertainties pertaining to the choice of collision model. Explicitly, this asymptotically valid molecular model allows the virtual drift velocity UD of the light gas and the thermophoretic velocity U of the massive, effectively non-Brownian, particle, now regarded as the tracer particle