cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Dynamical obstruction to localization in a disordered spin chain
Creators: name: Sels, Dries
name: Polkovnikov, Anatoli
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We analyze a one-dimensional XXZ spin chain in a disordered magnetic field. As the main probes of the system's behavior we use the sensitivity of eigenstates to adiabatic transformations, as expressed through the fidelity susceptibility, in conjunction with the low frequency asymptotes of the spectral function. We identify a region of maximal chaos -- with exponentially enhanced susceptibility -- which separates the many-body localized phase from the diffusive ergodic phase. This regime is characterized by slow transport and we argue that the presence of such slow dynamics is incompatible with the localization transition in the thermodynamic limit. Instead of localizing, the system appears to enter a universal subdiffusive relaxation regime at moderate values of disorder, where the spectral function of the local longitudinal magnetization is inversely proportional to the frequency, corresponding to logarithmic in time relaxation of its auto-correlation function.
Statistical analysis of viscosity-composition data in glassmaking
Creators: name: Öksoy, Dolun
name: Pye, L. David
name: Boulos, Edward N.
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 1994
Subjects: subject: 660

description: The objective of this work is to revisit and expand the methods for calculating viscosities of glass with changes in composition that was pioneered by Lakatos, Johansson, and Simmingsköld. Using the data provided by these authors, an empirical statistical model will be presented. This will illustrate the effect of composition change on viscosity that can be expected in a typical glassmaking process.
Diopside marble-like sintered glass-ceramics
Creators: name: Karamanov, Alexander
name: Gutsow, Ivan
name: Penkov, Ivan
name: Andreev, Julian
name: Bogdanov, Bogdan
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 1994
Subjects: subject: 660

description: Experimental results on the synthesis of a new marble-like glass-ceramic material to be used for wall covering are given. The material is prepared by sintering and surface-induced crystallizadon of a precursor frit. In contrast to usual glass-ceramic materials similar to natural marbles and granites, where the major crystalline phase is β-wollastonite (CaO * Si0₂ ) , in the new material diopside (CaO * MgO * 2Si0₂ ) is formed. Due to the enhanced crystallization ability of the initial glasses, the duration of the heat treatment needed for the synthesis of the new materials can be considerably reduced.
Empirically Classifying Network Mechanisms
Creators: name: Langendorf, Ryan E.
name: Burgess, Matthew G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Social and Information Networks (cs.SI)
subject: Machine Learning (cs.LG)
subject: Computation (stat.CO)
subject: FOS: Computer and information sciences

description: Network models are used to study interconnected systems across many physical, biological, and social disciplines. Such models often assume a particular network-generating mechanism, which when fit to data produces estimates of mechanism-specific parameters that describe how systems function. For instance, a social network model might assume new individuals connect to others with probability proportional to their number of pre-existing connections ('preferential attachment'), and then estimate the disparity in interactions between famous and obscure individuals with similar qualifications. However, without a means of testing the relevance of the assumed mechanism, conclusions from such models could be misleading. Here we introduce a simple empirical approach which can mechanistically classify arbitrary network data. Our approach compares empirical networks to model networks from a user-provided candidate set of mechanisms, and classifies each network--with high accuracy--as originating from either one of the mechanisms or none of them. We tested 373 empirical networks against five of the most widely studied network mechanisms and found that most (228) were unlike any of these mechanisms. This raises the possibility that some empirical networks arise from mixtures of mechanisms. We show that mixtures are often unidentifiable because different mixtures can produce functionally equivalent networks. In such systems, which are governed by multiple mechanisms, our approach can still accurately predict out-of-sample functional properties.
description: 5 pages, 2 figures, 2 ancillary files
A Cocopa Witch
Creators: name: Ochurte Espinoza, Trinidad
name: Mixco, Mauricio J.
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: klb

description: See Kiliwa Texts: “When I have Donned My Crest of Stars” (University of Utah Press, 1983), p. 203 for transcription, segmentation, glossing, and translation of this story.
Deep Learning of Accurate Force Field of Ferroelectric HfO$_2$
Creators: name: Wu, Jing
name: Zhang, Yuzhi
name: Zhang, Linfeng
name: Liu, Shi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The discovery of ferroelectricity in HfO$_2$-based thin films opens up new opportunities for using this silicon-compatible ferroelectric to realize low-power logic circuits and high-density non-volatile memories. The functional performances of ferroelectrics are intimately related to their dynamic responses to external stimuli such as electric fields at finite temperatures. Molecular dynamics is an ideal technique for investigating dynamical processes on large length and time scales, though its applications to new materials is often hindered by the limited availability and accuracy of classical force fields. Here we present a deep neural network-based interatomic force field of HfO$_2$ learned from {\em ab initio} data using a concurrent learning procedure. The model potential is able to predict structural properties such as elastic constants, equation of states, phonon dispersion relationships, and phase transition barriers of various hafnia polymorphs with accuracy comparable with density functional theory calculations. The validity of this model potential is further confirmed by the reproduction of experimental sequences of temperature-driven ferroelectric-paraelectric phase transitions of HfO$_2$ with isobaric-isothermal ensemble molecular dynamics simulations. We suggest a general approach to extend the model potential of HfO$_2$ to related material systems including dopants and defects.
Modelling of time strength behaviour of soda-lime-silica glass in moist environments
Creators: name: Höhne, Lutz
name: Ullner, Christian
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 1994
Subjects: subject: 660

description: The time strength behaviour of alkali silicate glasses depends on the environmental media and external stresses during aging as well as on the type of initial crack (kind of damage). An extended crack growth model based on the competing processes of crack growth and its retardation due to stress-enhanced alkali leaching in moist media has been implemented on a computer. Considering residual contact stresses, this model is able to simulate crack arrest, strength increase (or decrease, respectively) during aging under load, static and dynamic fadgue including strength distribudons of various soda-lime-silica glass applicadons. Lifetime predicdon of static fatigue can be improved up to about 10 years.
Interacting Dark Energy in a closed universe
Creators: name: Di Valentino, Eleonora
name: Melchiorri, Alessandro
name: Mena, Olga
name: Pan, Supriya
name: Yang, Weiqiang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Recent measurements of the Cosmic Microwave Anisotropies power spectra measured by the Planck satellite show a preference for a closed universe at more than $99 \%$ Confidence Level. Such a scenario is however in disagreement with several low redshift observables, including luminosity distances of Type Ia Supernovae. Here we show that Interacting Dark Energy (IDE) models can ease the discrepancies between Planck and Supernovae Ia data in a closed Universe. Therefore IDE cosmologies remain as very appealing scenarios, as they can provide the solution to a number of observational tensions in different fiducial cosmologies. The results presented here strongly favour broader analyses of cosmological data, and suggest that relaxing the usual flatness and vacuum energy assumptions can lead to a much better agreement among theory and observations.
description: 5 pages, 2 figures, Version accepted for publication in MNRAS letters
Spin-dependent hole quantum transport in Aharonov-Bohm ring structure: possible schemes for spin filter
Creators: name: Zhou, J.
name: Wu, M. W.
name: Weng, M. Q.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the Aharonov-Bohm (AB) effect in two-dimensional mesoscopic frame in hole systems. We show that differing from the AB effect in electron systems, due to the presence of both the heavy hole and the light hole, the conductances not only show the normal spin-unresolved AB oscillations, but also become spin-separated. Some schemes for spin filter based on the abundant interference characteristics are proposed.
description: 4 pages, 5 figures. Phys. Lett. A, 2005, in press
Race, Gender, and Leadership
Creators: name: Parker, Patricia
Publisher: name: Advancing Women in Leadership Journal
Year: 2017

description: The preface to Race, Gender, and Leadership boldly declares that "this book takes up the charge put forth by cutting edge leadership scholars to envision new forms of leadership for the 21st century" (p. ix). A key point of the book is that in criticizing traditional "masculine" forms of leadership and arguing instead for an alleged "female advantage" or "feminine leadership" style, feminist scholars have done little more than perpetuate notions of dualism. Furthermore, the model of feminine leadership portrayed in the popular media is based on the experiences of a "select few" predominately white middle-class women. As a result, "The female advantage perspective excludes the experiences of African-American women as well as other women of color and of different class statuses" (p. xv). Most important, it ignores the multicultural perspective that is essential to understanding and advancing leadership development in an age of globalization.
description: Advancing Women in Leadership Journal, Vol. 21 (2006)
Highly ordered magnetic fields in the tail of the jellyfish galaxy JO206
Creators: name: Müller, Ancla
name: Poggianti, Bianca
name: Pfrommer, Christoph
name: Adebahr, Björn
name: Serra, Paolo
name: Ignesti, Alessandro
name: Sparre, Martin
name: Gitti, Myriam
name: Dettmar, Ralf-Jürgen
name: Vulcani, Benedetta
name: Moretti, Alessia
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Jellyfish galaxies have long tails of gas that is stripped from the disc by ram pressure due to the motion of galaxies in the intracluster medium in galaxy clusters. We present the first measurement of the magnetic field strength and orientation within the disc and the (90$\,$kpc-long) $\rm Hα$-emitting tail of the jellyfish galaxy JO206. The tail has a large-scale magnetic field ($>4.1\,μ$G), a steep radio spectral index ($α\sim -2.0$), indicating an aging of the electrons propagating away from the star-forming regions, and extremely high fractional polarisation ($>50\,$%), indicating low turbulent motions. The magnetic field vectors are aligned with (parallel to) the direction of the ionised-gas tail and stripping direction. High-resolution simulations of a large, cold gas cloud that is exposed to a hot, magnetised turbulent wind show that the high fractional polarisation and the ordered magnetic field can be explained by accretion of draped magnetised plasma from the hot wind that condenses onto the external layers of the tail, where it is adiabatically compressed and sheared. The ordered magnetic field, preventing heat and momentum exchange, may be a key factor in allowing in-situ star formation in the tail.
description: accepted for publication in Nature Astronomy, Sharedlt: https://rdcu.be/b9c0L (free read only)
Photoelectron spectra of early $3d$-transition metal dioxide cluster anions from $GW$ calculations
Creators: name: Rezaei, Meisam
name: Öğüt, Serdar
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Photoelectron spectra of early $3d-$transition metal dioxide anions, ScO$_{2}^-$, TiO$_{2}^-$, VO$_{2}^-$, CrO$_{2}^-$, MnO$_{2}^-$, are calculated using semilocal and hybrid density functional theory (DFT) and many-body perturbation theory within the $GW$ approximation using one-shot perturbative and eigenvalue self-consistent formalisms. Different levels of theory are compared with each other and with available photoelectron spectra. We show that one-shot $GW$ with a PBE0 starting point ($G_0W_0$@PBE0) consistently provides very good agreement for all experimentally measured binding energies (within 0.1-0.2 eV or less), which we attribute to the success of PBE0 in mitigating self-interaction error and providing good quasiparticle wave functions, which renders a first-order perturbative $GW$ correction effective. One-shot $GW$ calculations with semilocal exchange in the DFT starting point (e.g. $G_0W_0$@PBE) do poorly in predicting electron removal energies by underbinding orbitals with typical errors near 1.5 eV. Higher amounts of exact exchange (e.g. 50%) in the DFT starting point of one-shot $GW$ do not provide very good agreement with experiment by overbinding orbitals with typical errors near 0.5 eV. While not as accurate as $G_0W_0$@PBE0, the $G$-only eigenvalue self-consistent $GW$ scheme with $W$ fixed to the PBE level ($G_nW_0$@PBE) provides a reasonably predictive level of theory (typical errors near 0.3 eV) to describe photoelectron spectra of these $3d-$transition metal dioxide anions. Adding eigenvalue self-consistency also in $W$ ($G_nW_n$@PBE), on the other hand, worsens the agreement with experiment overall. Our findings on the performance of various $GW$ methods are discussed in the context of our previous studies on other transition metal oxide molecular systems.
description: 11 pages, 7 figures, submitted to JCP
Internal Structure of Massive Terrestrial Planets
Creators: name: Valencia, Diana
name: O'Connell, Richard J.
name: Sasselov, Dimitar D.
name: ;
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Planetary formation models predict the existence of massive terrestrial planets and experiments are now being designed that should succeed in discovering them and measuring their masses and radii. We calculate internal structures of planets with one to ten times the mass of the Earth (Super-Earths) in order to obtain scaling laws for total radius, mantle thickness, core size and average density as a function of mass. We explore different compositions and obtain a scaling law of $R\propto M^{0.267-0.272}$ for Super-Earths. We also study a second family of planets, Super-Mercuries with masses ranging from one mercury-mass to ten mercury-masses with similar composition to the Earth's but larger core mass fraction. We explore the effect of surface temperature and core mass fraction on the scaling laws for these planets. The scaling law obtained for the Super-Mercuries is $R\propto M^{\sim0.3}$.
description: 29 pages, 2 tables, 8 figures. In review in Icarus International Journal
Black Women Employed in the Ivory Tower: Connecting for Success
Creators: name: Henry, Dr. Wilma J.
name: Glenn, Nicole M.
Publisher: name: Advancing Women in Leadership Journal
Year: 2017

description: The purpose of this article is to continue the dialogue regarding the impact of lack of critical mass and systemic racism on the success of Black women employed in higher education. While the literature suggests that it is essential for Black women to connect with one another in order to overcome the obstacles they face within the academy, the effects of systemic racism and their underrepresentation in the profession makes this recommendation extremely difficult to implement in some settings, and nearly impossible in others. Black feminist thought and critical race theory provide a theoretical framework for discussing innovative connective opportunities that promote the success of Black women working in higher education. Individual as well as institutional strategies are presented as a means to address the obstacles encountered by Black female faculty and staff in predominantly White institutions (PWIs). Implications for practice are discussed and recommendations for research are offered.
description: Advancing Women in Leadership Journal, Vol. 29 (2009)
Constraints on SUSY Lepton Flavour Violation by rare processes
Creators: name: Paradisi, Paride
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We study the constraints on flavour violating terms in low energy SUSY coming from several processes as li -> lj gamma, li -> lj lj lj and mu -> e in Nuclei. We show that a combined analysis of the processes allows us to extract additional information with respect to an individual analysis of all the processes. In particular, it makes possible to put bounds on sectors previously unconstrained by li -> lj gamma. We perform the analysis both in the mass eigenstate and in the mass insertion approximations clarifying the limit of applicability of these approximations.
description: 23 pages, 15 figures. Typos corrected, several references and equations added. Results and conclusions completely unchanged. Accepted version for publication in JHEP
Identifying Type II Strongly Lensed Gravitational-Wave Images in Third-Generation Gravitational-Wave Detectors
Creators: name: Wang, Yijun
name: Lo, Rico K. L.
name: Li, Alvin K. Y.
name: Chen, Yanbei
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Strong gravitational lensing is a gravitational wave (GW) propagation effect that influences the inferred GW source parameters and the cosmological environment. Identifying strongly-lensed GW images is challenging as waveform amplitude magnification is degenerate with a shift in the source intrinsic mass and redshift. However, even in the geometric-optics limit, type II strongly-lensed images cannot be fully matched by type I (or unlensed) waveform templates, especially with large binary mass ratios and orbital inclination angles. We propose to use this mismatch to distinguish individual type II images. Using planned noise spectra of Cosmic Explorer, Einstein Telescope and LIGO Voyager, we show that a significant fraction of type II images can be distinguished from unlensed sources, given sufficient SNR ($\sim 30$). Incorporating models on GW source population and lens population, we predict that the yearly detection rate of lensed GW sources with detectable type II images is 172.2, 118.2 and 27.4 for CE, ET and LIGO Voyager, respectively. Among these detectable events, 33.1%, 7.3% and 0.22% will be distinguishable via their type II images with a log Bayes factor larger than 10. We conclude that such distinguishable events are likely to appear in the third-generation detector catalog; our strategy will significantly supplement existing strong lensing search strategies.
description: 20 pages, 16 figures. Figures and some texts were modified without changes to the conclusion. Published In PRD
Quantum simulation and computing with Rydberg-interacting qubits
Creators: name: Morgado, M.
name: Whitlock, S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Arrays of optically trapped atoms excited to Rydberg states have recently emerged as a competitive physical platform for quantum simulation and computing, where high-fidelity state preparation and readout, quantum logic gates and controlled quantum dynamics of more than 100 qubits have all been demonstrated. These systems are now approaching the point where reliable quantum computations with hundreds of qubits and realistically thousands of multiqubit gates with low error rates should be within reach for the first time. In this article we give an overview of the Rydberg quantum toolbox, emphasizing the high degree of flexibility for encoding qubits, performing quantum operations and engineering quantum many-body Hamiltonians. We then review the state-of-the-art concerning high-fidelity quantum operations and logic gates as well as quantum simulations in many-body regimes. Finally, we discuss computing schemes that are particularly suited to the Rydberg platform and some of the remaining challenges on the road to general purpose quantum simulators and quantum computers.
description: This review article has been submitted the journal AVS Quantum Science
Stochastic Ergodicity Breaking: a Random Walk Approach
Creators: name: Bel, Golan
name: Barkai, Eli
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The continuous time random walk (CTRW) model exhibits a non-ergodic phase when the average waiting time diverges. Using an analytical approach for the non-biased and the uniformly biased CTRWs, and numerical simulations for the CTRW in a potential field, we obtain the non-ergodic properties of the random walk which show strong deviations from Boltzmann--Gibbs theory. We derive the distribution function of occupation times in a bounded region of space which, in the ergodic phase recovers the Boltzmann--Gibbs theory, while in the non-ergodic phase yields a generalized non-ergodic statistical law.
description: 5 pages, 3 figures
Constraining the Distance to the North Polar Spur with Gaia DR2
Creators: name: Das, Kaustav K.
name: Zucker, Catherine
name: Speagle, Joshua S.
name: Goodman, Alyssa
name: Green, Gregory M.
name: Alves, João
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The North Polar Spur (NPS) is one of the largest structures observed in the Milky Way in both the radio and soft x-rays. While several predictions have been made regarding the origin of the NPS, modelling the structure is difficult without precise distance constraints. In this paper, we determine accurate distances to the southern terminus of the NPS and toward latitudes ranging up to 55$^{\circ}$. First, we fit for the distance and extinction to stars toward the NPS using optical and near-infrared photometry and Gaia DR2 astrometry. We model these per-star distance-extinction estimates as being caused by dust screens at unknown distances, which we fit for using a nested sampling algorithm. We then compare the extinction to the Spur derived from our 3D dust modelling with integrated independent measures from XMM-Newton X-ray absorption and HI column density measures. We find that we can account for nearly 100% of the total column density of the NPS as lying within 140 pc for latitudes $>26^{\circ}$ and within 700 pc for latitudes $< 11^{\circ}$. Based on the results, we conclude that the NPS is not associated with the Galactic Centre or the Fermi bubbles. Instead, it is likely associated, especially at higher latitudes, with the Sco-Cen association.
description: Accepted for publication in MNRAS, 10 pages, 4 figures and 2 tables
Some applications of transversality for infinite dimensional manifolds
Creators: name: Eftekharinasab, Kaveh
Publisher: name: arXiv
Year: 2021
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: We present some transversality results for a category of Fréchet manifolds, the so-called $MC^k$-Fréchet manifolds. In this context, we apply the obtained transversality results to construct the degree of nonlinear Fredholm mappings by virtue of which we prove a rank theorem, an invariance of domain theorem and a Bursuk-Ulam type theorem.
Correspondence Matrices are Underrated
Creators: name: Zodage, Tejas
name: Chakwate, Rahul
name: Sarode, Vinit
name: Srivatsan, Rangaprasad Arun
name: Choset, Howie
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Point-cloud registration (PCR) is an important task in various applications such as robotic manipulation, augmented and virtual reality, SLAM, etc. PCR is an optimization problem involving minimization over two different types of interdependent variables: transformation parameters and point-to-point correspondences. Recent developments in deep-learning have produced computationally fast approaches for PCR. The loss functions that are optimized in these networks are based on the error in the transformation parameters. We hypothesize that these methods would perform significantly better if they calculated their loss function using correspondence error instead of only using error in transformation parameters. We define correspondence error as a metric based on incorrectly matched point pairs. We provide a fundamental explanation for why this is the case and test our hypothesis by modifying existing methods to use correspondence-based loss instead of transformation-based loss. These experiments show that the modified networks converge faster and register more accurately even at larger misalignment when compared to the original networks.
description: Accepted in the conference, 3DV 2020. 8 pages + 2 supplementary pages + 2 reference papers
Protection against heat, radiation and glare - New developments in automotive glazings
Creators: name: Weigt, Paul
name: Schrey, Helmut
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 1994
Subjects: subject: 660

description: To maintain thermal comfort for driver and passengers in cars body-tinted, coated and insulated glasses were recently developed. Representative glasses of these categories and their thermal properties are presented. For assessment o f the sun-protective properties the spectrophotometric data are taken into account. The use of these glasses with respect to the legal Hght transmittance limits is discussed. The presentation of the heat protection function includes the determination of U values for different driving conditions. The determination of the spectrophotometric and heat engineering data with respect to the International Standard ISO/DIS 9050 is discussed. I t is shown, how far deviations from this standard can lead to misleading evaluations of the same glazings.
Asymptotics of the deuteron form factors in the nucleon model and JLab experiments
Creators: name: Krutov, A. F.
name: Troitsky, V. E.
name: Tsirova, N. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Using the instant form dynamics of Poincaré invariant quantum mechanics and the modified relativistic impulse approximation proposed previously we calculate asymptotics of electromagnetic form factors for the deuteron considered as two--nucleon system. We show that today experiment on the elastic $ed$-scattering has reached asymptotic regime. The possible range of momentum transfer when the quark degrees of freedom could be seen in future JLab experiments is estimated. The explicit relation between the behavior of deuteron wave function at $r=0$ and the form factors asymptotics is obtained. The conditions on wave functions to give the asymptotics predicted by QCD and quark counting rules are formulated.
description: 9 pages, 1 figure
Synthesis of wall-covering glass-ceramics from waste raw materials
Creators: name: Karamanov, Alexander
name: Chomakov, Ivan
name: Christov, Jancho
name: Kostov, Lyubomir
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 1994
Subjects: subject: 660

description: The possibility of producing glass-ceramic wall-covering materials from waste raw materials by sintering and crystallization of the frit is demonstrated. The compositions used are given and suggestions concerning the synthesis are made depending on the type of the initial waste materials.
HAZMAT. VII. The Evolution of Ultraviolet Emission with Age and Rotation for Early M Dwarf Stars
Creators: name: Loyd, R. O. Parke
name: Shkolnik, Evgenya L.
name: Schneider, Adam C.
name: Richey-Yowell, Tyler
name: Jackman, James A. G.
name: Peacock, Sarah
name: Barman, Travis S.
name: Pagano, Isabella
name: Meadows, Victoria S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The ultraviolet (UV) emission from the most numerous stars in the universe, M dwarfs, impacts the formation, chemistry, atmospheric stability, and surface habitability of their planets. We have analyzed the spectral evolution of UV emission from M0-M2.5 (0.3-0.6 Msun) stars as a function of age, rotation, and Rossby number, using Hubble Space Telescope observations of Tucana Horologium (40 Myr), Hyades (650 Myr), and field (2-9 Gyr) objects. The quiescent surface flux of their C II, C III, C IV, He II, N V, Si III, and Si IV emission lines, formed in the stellar transition region, remains elevated at a constant level for 240 $\pm$ 30 Myr before declining by 2.1 orders of magnitude to an age of 10 Gyr. Mg II and far-UV pseudocontinuum emission, formed in the stellar chromosphere, exhibit more gradual evolution with age, declining by 1.3 and 1.7 orders of magnitude, respectively. The youngest stars exhibit a scatter of 0.1 dex in far-UV line and pseudocontinuum flux attributable only to rotational modulation, long-term activity cycles, or an unknown source of variability. Saturation-decay fits to these data can predict an M0-M2.5 star's quiescent emission in UV lines and the far-UV pseudocontinuum with an accuracy of roughly 0.2-0.3 dex, the most accurate means presently available. Predictions of UV emission will be useful for studying exoplanetary atmospheric evolution, the destruction and abiotic production of biologically relevant molecules, and interpreting infrared and optical planetary spectra measured with observatories like the James Webb Space Telescope.
description: accepted to The Astronomical Journal, 25 pages, 9 figures | v2 accidental trackchanges toggled off | v3 typo fixes, more precise language on activity decline
Industrial experience with oxygen-fired glass furnaces
Creators: name: Lauwers, Eddy
name: Strohberg, Horst
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 1994
Subjects: subject: 660

description: Among the leading industrial gases suppliers, Praxair has developed a leadership position in oxygen combustion technology and in on-site oxygen supply technology with its Vacuum Pressure Swing Adsorption process. A tailor-made solution with regard to oxygen burner technology and to oxygen supply method is provided to meet customer requirements. The latest developments show a reduction in particulate emission o f up to 30 % and in NOx emission of up to 90 % compared to air/fuel-fired operations. These results are confirmed in industrial use. Due to specific requirements in applicadon technology, different burner concepts have been developed. These concepts can be classified in two groups: Conventional burners with direct oxygen-fuel mixing create high flame temperatures and NOx formadon; recirculating burners create low flame temperatures and NOx formation due to controlled fluid dynamics to entrain furnace atmosphere into the main oxygen stream before the now diluted oxygen reacts with the fuel.
The lived experience of fishers through the cod moratorium in Newfoundland
Creators: name: Wall, Marie
Publisher: name: University of British Columbia
Year: 2009

description: Using Karlsson's Empirical Psychological Phenomenological Method, this thesis project researches the fishers' lived experience of the cod-fishing moratorium in Newfoundland that began in 1992. The source for the lived experience was derived from interviews with five fishers from St. Mary's Bay, Newfoundland, who were full-time fishers at the declaration of the moratorium. The study resulted in 17 themes representing their experience, including the experiences of: steadfastness, knowing, loss and grief, abandonment, dashed hopes, professionalization, being prepared for the moratorium and not being prepared for the moratorium, of waiting, remembering the resettlement program, being judged disrespectfully, being devalued for fishers' economic contribution, being paid-off, being misguided, frustration and change. This study articulated the issues as named by those most affected and translated the experience into a psychological perspective that can influence the development and implementation of counselling practices and programs. Based on the findings of this study, implications were drawn for counselling practice, for individual and group processes, and policy making.
Ultrasonic measurements and complex elastic moduli of silicate glass melts in the viscoelastic and viscous range
Creators: name: Bornöft, Hansjörg
name: Brückner, Rolf
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 1994
Subjects: subject: 660

description: The temperature- and frequency-dependence of the ultrasonic velocity and attenuation in glass melts is investigated up to a temperature of 1400 C by means of an equipment for measuring the longitudinal and transversal ultrasonic waves. The range of dispersion and the attenuation maxima are determined at frequencies 0.5 to 4 MHz completely for the DGG standard glass I and for the glass melts (composidons in mol%): 7 4 Si0₂ , 16Na₂O, 10CaO and 7 4 Si0₂ , 16 K₂O, 10CaO and partly for the glass melt 7 4 Si0₂ , 16CS₂O, 10CaO and for the B₂O₃ melt. The whole number of elastic constants follows from the ultrasonic velocities and from the density in the usual way The properties of these glass melts are compared along the temperature and viscosity. The transition from the elastic solid to the viscous fluid can be characterized by the elastic modul and interpreted as a viscoelasdc response of an unrelaxed to a relaxed dynamic network which depolymerizes reversibly with increasing and polymerizes with decreasing temperature. The internal frieden, Q⁻¹ characterizes the inelastic pordon during the periodical stress of the ultrasonic waves. The activation energy of Q⁻¹ obtained via frequencies and temperature of the maxima of is nearly twice the amount of the viscosity activation energy in the same temperature region.
Physical conditions of gas components in debris disks of 49 Ceti and HD 21997
Creators: name: Higuchi, Aya E.
name: Kóspál, Ágnes
name: Moór, Attila
name: Nomura, Hideko
name: Yamamoto, Satoshi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Characterization of gas component in debris disks is of fundamental importance for understanding its origin. Toward this goal, we have conducted non-LTE (local thermodynamic equilibrium) analyses of the rotational spectral lines of CO including those of rare isotopologues ($^{13}$CO and C$^{18}$O) observed toward the gaseous debris disks of 49 Ceti and HD 21997 with the Atacama Large Millimeter/submillimeter Array (ALMA) and Atacama Compact Array (ACA). The analyses have been carried out for a wide range of the H$_{2}$ density, and the observed line intensities are found to be reproduced, as far as the H$_{2}$ density is higher than 10$^{3}$ cm$^{-3}$. The CO column density and the gas temperature are evaluated to be (1.8-5.9)$\times$10$^{17}$ cm$^{-2}$ and 8-11 K for 49 Ceti and (2.6-15)$\times$10$^{17}$ cm$^{-2}$ and 8-12 K for HD 21997, respectively, where the H$_{2}$ collision is assumed for the rotational excitation of CO. The results do not change significantly even if electron collision is considered. Thus, CO molecules can be excited under environments of no H$_{2}$ or a small number of H$_{2}$ molecules, even where the collision with CO, C, O, and C$^{+}$ would make an important contribution for the CO excitation in addition to H$_{2}$. Meanwhile, our result does not rule out the case of abundant H$_{2}$ molecules. The low gas temperature observed in the debris disks is discussed in terms of inefficient heating by interstellar and stellar UV radiation.
description: 25 pages, 5 figures, 9 tables, accepted for publication in ApJ
Women in Hospital Chief Executive Officer Positions: Fact or Fiction
Creators: name: Hoss, Mary Ann Keogh
Publisher: name: Advancing Women in Leadership Journal
Year: 2017

description: Are women represented in hospital CEO positions? Twenty-three hospitals in three counties were surveyed to answer this question. Surveys were done to determine the number and percentage of women in hospital CEO positions. Also identified were the beds controlled by women hospital CEOs within each county. From the county with the lowest percentage of women in CEO positions, an American College of Healthcare Executives survey, Gender and Career in Healthcare Management (GCHM), was conducted. Two counties were above the national average for women CEOs at 23.3%. One county was at 25% and the other county was at 33%. The first county was at 52% and the second county was at 27% for control of percentage of beds by women hospital CEOs. The third county which was below the national average for women was at 11% with 1.3% of the beds controlled by women. In the results of the GCHM, women respondents were satisfied with advancement, infrequently engaging in informal networking within their current organizations, and perceived male stereotyping and preconceptions of women's roles and abilities as the primary barrier to advancement. More research needs to be conducted on the counties with women hospital CEOs to identify the strategies that helped make these women in CEO positions a fact.
description: Advancing Women in Leadership Journal, Vol. 21 (2006)
European Database for Multiscale Modelling of Radiation Damage (ENTENTE) H2020 project
Creators: name: Serrano, Marta
name: Sanahuja, Julien
name: Robertson, Christian
name: Lindross, Matti
Publisher: name: Zenodo
Year: 2021
Subjects: wind
wind power
EU projects
open data

description: This presentation was part of the EERA JP Wind & SETWind Cross-cutting workshop on Open & Fair Data (May 29, 2020).
Transmission electron microscopy investigation of segregation and critical floating-layer content of indium for island formation in InGaAs
Creators: name: Litvinov, D.
name: Gerthsen, D.
name: Rosenauer, A.
name: Schowalter, M.
name: Passow, T.
name: Feinaeugle, P.
name: Hetterich, M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We have investigated InGaAs layers grown by molecular-beam epitaxy on GaAs(001) by transmission electron microscopy (TEM) and photoluminescence spectroscopy. InGaAs layers with In-concentrations of 16, 25 and 28 % and respective thicknesses of 20, 22 and 23 monolayers were deposited at 535 C. The parameters were chosen to grow layers slightly above and below the transition between the two- and three-dimensional growth mode. In-concentration profiles were obtained from high-resolution TEM images by composition evaluation by lattice fringe analysis. The measured profiles can be well described applying the segregation model of Muraki et al. [Appl. Phys. Lett. 61 (1992) 557]. Calculated photoluminescence peak positions on the basis of the measured concentration profiles are in good agreement with the experimental ones. Evaluating experimental In-concentration profiles it is found that the transition from the two-dimensional to the three-dimensional growth mode occurs if the indium content in the In-floating layer exceeds 1.1+/-0.2 monolayers. The measured exponential decrease of the In-concentration within the cap layer on top of the islands reveals that the In-floating layer is not consumed during island formation. The segregation efficiency above the islands is increased compared to the quantum wells which is explained tentatively by strain-dependent lattice-site selection of In. In addition, In0.25Ga0.75As quantum wells were grown at different temperatures between 500 oC and 550 oC. The evaluation of concentration profiles shows that the segregation efficiency increases from R=0.65 to R=0.83.
description: 16 pages, 6 figures, 1 table, sbmitted in Phys. Rev. B
Modeling of the bubble population in glass melts
Creators: name: Roi, Torsten
name: Seidel, Olaf
name: Nölle, Günther
name: Höhne, Diethard
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 1994
Subjects: subject: 660

description: Previous studies of refining models have mostly dealt with the mathematical description of the behavior of individual bubbles in glass melts. A further step was the modeling of the ascent and growth of groups of bubbles, including restrictions with respect to the spatial distribution of the individual bubbles. Even though no algorithm was derived in this stage which described the total bubble balance during refining, these investigations have produced important results in the field of bubble growth and ascent. In this study, a general and comprehensive mathematical description of the bubble population during refining shall be given, on the basis of the population balance equation used in chemical engineering. The general balance equation for bubbles during refining is presented together with the corresponding computer model. Several experimental investigations into bubble size distribution are described, together with an analysis of the reduction of the bubble concentration in the pot. The obtained values were used as initial parameters and estimates in computer simulations. Some special results of modeling are shown and discussed.
Measurement of convective heat transfer for various checker systems
Creators: name: Bauer, Johannes
name: Hofmann, Otto-R.
name: Giese, Sabine
Publisher: name: Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft
Year: 1994
Subjects: subject: 660

description: The heat transfer properties of six different checkerworks were studied using a special test equipment. The temperature was deliberately limited to 300 C in order to measure the local temperature distribution of the air for the first time. The flow in the regenerator channels shows a considerable non-symmetrical appearance and local strands. Its enthalpy can not be determined by the measurement of only one temperature. The heat transfer depends not only on the velocity of the flow (forced convection) but also on the temperature differences and resulting density differences of the fluid (free convection). In consequence of the low operating temperature and the necessity to measure the air temperature at many points, sufficiently accurate values for the coefficient of heat transfer could only be achieved for a part of the parameter range of industrial regenerators.
On the Sufficient Optimality Condition for Quantum Information Processing
Creators: name: Belavkin, V. P.
name: Vantsyan, A. G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The necessary and sufficient conditions of optimality of the decoding of quantum signals minimizing the Bayesian risk are generalized for the Shannon mutual information criteria. It is shown that for a linear channel with Gaussian boson noise these conditions are satisfied by coherent quasi-measurement of the canonical annihilation amplitudes in the received superposition.
description: 6 pages. An addition to quant-ph/0511042
The interaction of the ITER first wall with magnetic perturbations
Creators: name: Boozer, Allen H.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Mitigation of the multiple risks associated with disruptions and runaway electrons in tokamaks involves competing demands. Success requires that each risk be understood sufficiently that appropriate compromises can be made. Here the focus is on the interaction of short timescale magnetic-perturbations with the structure in ITER that is closest to the plasma, blanket modules covered by separated beryllium tiles. The effect of this tiled surface on the perturbations and on the forces on structures are subtle. Indeterminacy can be introduced by tile-to-tile shorting. A determinate subtlety is introduced because electrically separated tiles can act as a conducting surface for magnetic perturbations that have a normal component to the surface. A practical method for including this determinate subtlety into plasma simulations is developed. The shorter the timescales and the greater the localization, particularly in the toroidal direction, the more important the magnetic effects of the tiles become.
Women in Higher Education Since 1970: The More Things Change, the More They Stay the Same
Creators: name: Gerdes, Eugenia Proctor
Publisher: name: Advancing Women in Leadership Journal
Year: 2017

description: Senior women looking back over their careers noted the increased presence of women, changes in policies or behavior, and/or improvements in beliefs or attitudes. However, almost half also noted family problems that remain for women, and about two-thirds described biases against women that remain a part of higher education today.
description: Advancing Women in Leadership Journal, Vol. 21 (2006)
การบูรณาการหลักธรรมเพื่อแก้ปัญหาจากการพนันของชุมชนเกษตรกรยางพาราและปาล์มน้ำมัน ตำบลทุ่งหลวง อำเภอเวียงสระ จังหวัดสุราษฎร์ธานี
Creators: name: ปัณณพงศ์ วงศ์ณาศรี
Publisher: name: มหาวิทยาลัยมหาจุฬาลงกรณราชวิทยาลัย วิทยาเขตขอนแก่น
Year: 2021
Subjects: การพนัน
การบูรณาการหลักธรรม
ศีล 5
อบายมุข 6
ชุมชนเกษตรกรยางพาราและปาล์มน้ำมัน

description: วารสารวิชาการธรรมทรรศน์, 21, 4, 67-80
Learning to be a Singer
Creators: name: Ochurte Espinoza, Trinidad
name: Mixco, Mauricio J.
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: klb

description: See Kiliwa Texts: "When I have Donned My Crest of Stars" (University of Utah Press, 1983), p. 182 for transcription, segmentation, glossing, and translation of this story.