cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Matched Filtering of Numerical Relativity Templates of Spinning Binary Black Holes
Creators: name: Vaishnav, Birjoo
name: Hinder, Ian
name: Herrmann, Frank
name: Shoemaker, Deirdre
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Tremendous progress has been made towards the solution of the binary-black-hole problem in numerical relativity. The waveforms produced by numerical relativity will play a role in gravitational wave detection as either test-beds for analytic template banks or as template banks themselves. As the parameter space explored by numerical relativity expands, the importance of quantifying the effect that each parameter has on first the detection of gravitational waves and then the parameter estimation of their sources increases. In light of this, we present a study of equal-mass, spinning binary-black-hole evolutions through matched filtering techniques commonly used in data analysis. We study how the match between two numerical waveforms varies with numerical resolution, initial angular momentum of the black holes and the inclination angle between the source and the detector. This study is limited by the fact that the spinning black-hole-binaries are oriented axially and the waveforms only contain approximately two and a half orbits before merger. We find that for detection purposes, spinning black holes require the inclusion of the higher harmonics in addition to the dominant mode, a condition that becomes more important as the black-hole-spins increase. In addition, we conduct a preliminary investigation of how well a template of fixed spin and inclination angle can detect target templates of arbitrary spin and inclination for the axial case considered here.
Impacts of agricultural drainage and an assessment of diffused aeration in the Serpentine River, British Columbia
Creators: name: Robinson, S. Thomas
Publisher: name: University of British Columbia
Year: 2010

description: Urban expansion of the City of Vancouver has resulted in increased land development of the municipality of Surrey, and more intensive agriculture on the remaining farmland. From 1980 to 1984 five different fish kills in the Serpentine River attributed to low dissolved oxygen were thought to be caused by a combination of agricultural discharges, high autumn water temperatures, as well as rainfall and river flow patterns. In 1985 an experimental instream aeration system was installed in a lower reach of the river in an attempt to provide additional oxygen during the critical autumn period. This study was undertaken to determine the extent of the agricultural drainage discharge problem. Weekly sampling from July to December, 1987, revealed that organic pollutional loading from dairy farms was high. Nutrients loadings in the river supported a heavy algal growth which resulted in an oxygen deficit during autumn algal die-off and decay. Although the flushing of farm ditches normally exerts an additional oxygen demand on the river, this was not observed in 1987 because the major autumn rains began on Oct 30, and lower water temperatures prevented a rapid exertion of the biodegradable oxygen demand. Implementation of source control of farm animal wastes is strongly recommended, along with a program of public education on conservation and management of natural habitat. Harvesting of filamentous algae in the river may eventually prove necessary for successful rehabilitation as diffused river aeration appears to be having a very small effect.
A translation of L. Euler's "Considerations on the motion of celestial bodies"
Creators: name: Bistafa, Sylvio R
Publisher: name: arXiv
Year: 2021
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Physical sciences

description: Euler wrote several papers on Astronomy, most of them in Latin. This is a commented translation of E304 'Considerationes de motu corporum coelestium' (Considerations on the motion of celestial bodies). In this publication, Euler essentially focuses on the solution of two particular motions of a three-body problem consisting of Sun, Earth and Moon. The first motion, represents a hypothetical situation of these three celestial bodies in perpetual alignment in syzygy - the three-body problem on a straight line -, for which the parameter that controls the distances among the planets was found to be given by a quintic function. The conclusion was that if the Moon were four times more distant from the Earth (either in conjunction or in opposition), a motion of this kind would have been possible to exist, such that the Moon would appear always connected to the Sun. The second motion considered by Euler was Moon libration, when these planets are aligned in regular syzygy. Here, perhaps for the first time, Euler introduces an archaic form of a Fourier sine series expansion to describe the Moon's wagging motion. However, as Euler himself recognizes, the calculations turned out very tedious, and led him to greatly simplify his model in order to obtain some numerical values for the phenomenon.
description: 12 pages, 1 figure
The orbital and physical parameters of the eclipsing binary OW Gemiorum
Creators: name: Gałan, C.
name: Mikołajewski, M.
name: Tomov, T.
name: Kolev, D.
name: Graczyk, D.
name: Majcher, A.
name: Janowski, J. Ł.
name: Cikała, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present our multicolour photometric data of the primary and secondary eclipses of OW Gem that took place in 1995, 2002, and 2006, as well as the new radial-velocity data collected since 1993 by R. F. Griffin and A. Duquennoy. The Wilson-Devinney code was used for the simultaneous solution of both photometric and spectroscopic data. A complete set of orbital and physical parameters of the components was obtained. The pair of values, eccentricity e=0.5286 and argument of periastron omega=140.73 degree, give better compatibility of the moment of the secondary minimum with the observations compared to previous estimates.
title: Icelandic Groundfish Survey
Creators: name: Palsson, Olafur K.
name: Steinarsson, Björn Æ.
name: Jonsson, Einar
name: Guðmundsson, Guðmundur
name: Jonsson, Gunnar
name: Stefansson, Gunnar
name: Björnsson, Höskuldur
name: Schopka, Sigfus A.
Publisher: name: ASC 1997 - Y
Year: 2024
Subjects: Fisheries and aquaculture
Technologies and data

description: No abstracts are to be cited without prior reference to the author.The objective of the Icelandic Groundfish Survey (IceGFS) is to improve the scientificbasis of fi heries management and thus increase consistency and reliability ofmanagement advice for demersal fish stocks in Icelandic water . The survey has beencarried out annually in March since 1985, covering the continental shelf waters aroundIceland with 540-600 'semi-randomly' distributed tows.
Exploiting scale dependence in cosmological averaging
Creators: name: Mattsson, Teppo
name: Ronkainen, Maria
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the role of scale dependence in the Buchert averaging method, using the flat Lemaitre-Tolman-Bondi model as a testing ground. Within this model, a single averaging scale gives too coarse predictions, but by replacing it with the distance of the objects R(z) for each redshift z, we find an O(1%) precision at z<2 in the averaged luminosity and angular diameter distances compared to their exact expressions. At low redshifts, we show the improvement for generic inhomogeneity profiles, and our numerical computations further verify it up to redshifts z~2. At higher redshifts, the method breaks down due to its inability to capture the time evolution of the inhomogeneities. We also demonstrate that the running smoothing scale R(z) can mimic acceleration, suggesting it could be at least as important as the backreaction in explaining dark energy as an inhomogeneity induced illusion.
description: v2: minor corrections
Buffer-aided relay networks in 5G and beyond-5G mobile systems
Creators: name: Alkhawatrah, Mohammad
Publisher: name: Loughborough University
Year: 2020
Subjects: subject: 91399 Mechanical Engineering not elsewhere classified
subject: FOS: Mechanical engineering

description: Wireless communication in the 5G era has to meet challenging goals such as huge target data rates, ultra-low latency, massive connectivity, and several other requirements. In the literature, several techniques were suggested to fulfil these goals. One of the promising techniques to achieve higher data rates, which has received considerable attention recently,is buffer-aided cooperative relay networks.This thesis aims to study how to exploit buffer-aided relays in the 5G cooperative net-works more effectively to get closer to achieve the goals of the 5G and beyond. Specifically,the proposed techniques in this thesis are directed to improve the most critical performance metrics of the buffer-aided cooperative relay network: the system throughput, the diversity gain and the average packet delay. [Continues.]
title: The International Bottom Trawl Survey In The North Sea, The Skagerrak And Kattegat
Creators: name: Heessen, Henk J.L.
name: Dalskov, Jørgen
name: Cook, Robin M.
Publisher: name: ASC 1997 - Y
Year: 2024
Subjects: Fisheries and aquaculture
Technologies and data

description: No abstracts are to be cited without prior reference to the author.Since its start in 1966 as 'a pilot-study for future young herring research in the NorthSea' the International Bottom Trawl Survey has been conducted annually, and evolvedfrom a specific herring recruit survey into a much more general 'fish survey'. The surveyprovides primarily abundance indices for recruiting year c1asses of several commercialfish species and data used for tuning the VPA. In addition, the results are used in a widevariety of studies, varying from investigations of the changes in growth and maturity ofcertain species, to studies into the ecosystem effects of fisheries.The paper describes the history of the survey, its current objectives and methods, andthe use that is made of the survey results. Finally several aspects of the survey arecritically reviewed.
Bloch's theory in periodic structures with Rashba's spin-orbit interaction
Creators: name: Smirnov, S.
name: Bercioux, D.
name: Grifoni, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We consider a two-dimensional electron gas with Rashba's spin-orbit interaction and two in-plane potentials superimposed along directions perpendicular to each other. The first of these potentials is assumed to be a general periodic potential while the second one is totally arbitrary. A general form for Bloch's amplitude is found and an eigen-value problem for the band structure of the system is derived. We apply the general result to the two particular cases in which either the second potential represents a harmonic in-plane confinement or it is zero. We find that for a harmonic confinement regions of the Brillouin zone with high polarizations are associated with the ones of large group velocity.
description: 6 pages, 5 figures
Van der Waals interaction affects wrinkle formation in two-dimensional materials
Creators: name: Ares, Pablo
name: Wang, Yi Bo
name: Woods, Colin R.
name: Dougherty, James
name: Fumagalli, Laura
name: Guinea, Francisco
name: Davidovitch, Benny
name: Novoselov, Kostya S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Nonlinear mechanics of solids is an exciting field that encompasses both beautiful mathematics, such as the emergence of instabilities and the formation of complex patterns, as well as multiple applications. Two-dimensional crystals and van der Waals (vdW) heterostructures allow revisiting this field on the atomic level, allowing much finer control over the parameters and offering atomistic interpretation of experimental observations. In this work, we consider the formation of instabilities consisting of radially-oriented wrinkles around mono- and few-layer "bubbles" in two-dimensional vdW heterostructures. Interestingly, the shape and wavelength of the wrinkles depend not only on the thickness of the two-dimensional crystal forming the bubble, but also on the atomistic structure of the interface between the bubble and the substrate, which can be controlled by their relative orientation. We argue that the periodic nature of these patterns emanates from an energetic balance between the resistance of the top membrane to bending, which favors large wavelength of wrinkles, and the membrane-substrate vdW attraction, which favors small wrinkle amplitude. Employing the classical "Winkler foundation" model of elasticity theory, we show that the number of radial wrinkles conveys a valuable relationship between the bending rigidity of the top membrane and the strength of the vdW interaction. Armed with this relationship, we use our data to demonstrate a nontrivial dependence of the bending rigidity on the number of layers in the top membrane, which shows two different regimes driven by slippage between the layers, and a high sensitivity of the vdW force to the alignment between the substrate and the membrane.
Power-law expansion cosmology in Schrödinger-type formulation
Creators: name: Gumjudpai, Burin
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate non-linear Schrödinger-type formulation of cosmology of which our cosmological system is a general relativistic FRLW universe containing canonical scalar field under arbitrary potential and a barotropic fluid with arbitrary spatial curvatures. We extend the formulation to include phantom field case and we have found that Schrödinger wave function in this formulation is generally non-normalizable. Assuming power-law expansion, $a \sim t^q$, we obtain scalar field potential as function of time. The corresponding quantities in Schrödinger-type formulation such as Schrödinger total energy, Schrödinger potential and wave function are also presented.
description: 9 pages, 5 figures, Revtex 4, accepted by Astroparticle Physics, more Ref. added
title: The Northeast Fisheries Science Center Bottom Trawl Survey Program
Creators: name: Azarovitz, Thomas
name: Clark, Stephen
name: Despres, Linda
name: Byrne, Charles
Publisher: name: ASC 1997 - Y
Year: 2024
Subjects: Fisheries and aquaculture
Technologies and data

description: No abstracts are to be cited without prior reference to the author.The National Marine Fisheries Service, Northeast FisheriesScience Center's Research Program includes multispecies bottomtrawl surveys; shellfish surveys for sea scallops, Atlanticsurfclams and ocean quahogs, and northern shrimp; longlinesurveys for apex-predators; and line transect surveys for marinemammal populations. This document provides an overview of themultispecies bottom trawl survey component and applications ofthe resulting data. The autumn bottom trawl survey has beenconducted since 1963; aspring survey was initiated in 1968, andsummer and winter surveys have been conducted intermittently.
AstroSat observation of the HBL 1ES 1959+650 during its October 2017 flaring
Creators: name: Shah, Zahir
name: Ezhikode, Savithri H.
name: Misra, Ranjeev
name: R, Rajalakshmi T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present the results of the X-ray flaring activity of 1ES 1959+650 during October 25-26, 2017 using AstroSat observations. The source was variable in the X-ray. We investigated the evolution of the X-ray spectral properties of the source by dividing the total observation period ($\sim 130$ ksecs) into time segments of 5 ksecs, and fitting the SXT and LAXPC spectra for each segment. Synchrotron emission of a broken power-law particle density model provided a better fit than the log-parabola one. The X-ray flux and the normalised particle density at an energy less than the break one, were found to anti-correlate with the index before the break. However, a stronger correlation between the density and index was obtained when a delay of $\sim 60$ ksec was introduced. The amplitude of the normalised particle density variation $|Δn_γ/n_γ| \sim 0.1$ was found to be less than that of the index $ΔΓ\sim 0.5$. We model the amplitudes and the time delay in a scenario where the particle acceleration time-scale varies on a time-scale comparable to itself. In this framework, the rest frame acceleration time-scale is estimated to be $\sim 1.97\times10^{5}$ secs and the emission region size to be $\sim 6.73\times 10^{15}$ cms.
description: 13 pages, 7 figures, 3 tables. Accepted for publication in MNRAS
The chiral condensate in holographic models of QCD
Creators: name: Cherman, Aleksey
name: Cohen, Thomas D.
name: Werbos, Elizabeth S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Bottom-up holographic models of QCD, inspired by the AdS/CFT correspondence, have shown a remarkable degree of phenomenological success. However, they rely on a number of bold assumptions. We investigate the reliability of one of the key assumptions, which involves matching the parameters of these models to QCD at high 4D momentum $q^2$ and renormalization scale $μ^2$. We show that this leads to phenomenological and theoretical inconsistencies for scale-dependent quantities such as $\bra \bar{q}q\ket$
description: 5 pages, fixed typos in Eq. 6 and in text after Eq. 13
Association of Chemokine (C-C Motif) Receptor 5 and Ligand 5 with Recovery from Major Depressive Disorder and Related Neurocognitive Impairment
Creators: name: Bauer, Olivia
name: Milenkovic, Vladimir M.
name: Hilbert, Sven
name: Sarubin, Nina
name: Weigl, Johannes
name: Bahr, Lisa-Marie
name: Wetter, Thomas C.
name: Heckel, Barbara
name: Wetzel, Christian H.
name: Rupprecht, Rainer
name: Nothdurfter, Caroline
Publisher: name: Universität Regensburg
Year: 2021
Subjects: subject: Chemokine (C-C motif) receptor 5 · Chemokine (C-C motif) ligand 5/RANTES · Major depressive disorder · Cognitive impairment · Cambridge Neuropsychological Test Automated Battery
subject: 610 Medizin

description: Introduction: Inflammatory processes play an important role in the pathophysiology of major depressive disorder (MDD), but their relevance for specific symptoms such as neurocognitive impairment is rarely investigated. Methods: In this observational study, we investigated the changes of leukocyte chemokine (C-C motif) receptor 5 (CCR5) and ligand 5 (CCL5) mRNA levels and inflammatory cytokines in 60 MDD patients before (PRE) and after 5 weeks (W5) of antidepressive treatment in relation to therapy response and alterations in cognitive functions by means of the Cambridge Neuropsychological Test Automated Battery (CANTAB). We hypothesized that elevated CCR5 and CCL5 levels in depressed patients would decrease upon treatment and could differ with regard to cognitive impairment associated with MDD. Results: Both CCR5 and CCL5 levels were significantly decreased in the responder group compared to nonresponders even before treatment. The cytokine IL-6 as a marker of inflammation in depression did not show a difference before treatment in future responders versus nonresponders, but decreased significantly upon antidepressive therapy. Regarding neurocognitive impairment in MDD patients, an increased misperception of the emotion “anger” after 5 weeks of treatment proved to be associated with a more pronounced change in CCR5, and the perception of the emotion “disgust” became faster along with a stronger decrease in CCL5 over the same time. Executive functions typically impaired in MDD patients were not markedly associated with alterations in CCR5/CCL5. Discussion: CCR5 and CCL5 are important in the targeting of immune cells by HIV. This is the first study providing valuable hints that both CCR5 and CCL5 might also serve as markers of therapy response prediction in MDD. Regarding neurocognitive impairment in depression, CCR5 and CCL5 did not reveal characteristic changes upon MDD treatment such as executive functions, which are probably delayed. However, changes of emotional perception appear to be an earlier responding feature.
Witt groups of Grassmann varieties
Creators: name: Balmer, Paul
name: Calmès, Baptiste
Publisher: name: arXiv
Year: 2008
Subjects: subject: Algebraic Geometry (math.AG)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics
subject: 19G99, 11E81, 18E30

description: We compute the total Witt groups of (split) Grassmann varieties, over any regular base X. The answer is a free module over the total Witt ring of X. We provide an explicit basis for this free module, which is indexed by a special class of Young diagrams, that we call even Young diagrams.
description: 31 pages, 16 figures. Final version. Complies with the new formalism on total Witt groups recently developed by the authors (arXiv:1104.5051)
Relationship between various supersymmetric lattice models
Creators: name: Takimi, Tomohisa
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We comment on the relationships between several supersymmetric lattice models; the ``orbifold lattice theory'' by Cohen-Kaplan-Katz-Unsal (CKKU), lattice regularization of the topological field theory by Sugino and the ``geometrical approach'' by Catterall. We point out that these three models have close relationships; the N =(2,2) model by Catterall [Catterall] and the two-dimensional N = (2,2) lattice theory being similar to Sugino's construction [Sugino] can be derived by appropriate truncation of fields in the two-dimensional N = (4,4) orbifold lattice theory by CKKU [Cohen et al]. Catterall's N = (2,2) description possesses extra degrees of freedom compared to the target N = (2,2) theory. If we remove those extra degrees of freedom in a way keeping supersymmetry on the lattice, Catterall's description reduces to a model of the Sugino type.
description: 26 pages, no figure, (v3) modified the eq. (3.15) and (3.18) and related statement in the derivation of Sugino model from the Catterall model in the previous version (v2)
The Origin of Solar Activity in the Tachocline
Creators: name: Parfrey, Kyle P.
name: Menou, Kristen
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Solar active regions, produced by the emergence of tubes of strong magnetic field in the photosphere, are restricted to within 35 degrees of the solar equator. The nature of the dynamo processes that create and renew these fields, and are therefore responsible for solar magnetic phenomena, are not well understood. We analyze the magneto-rotational stability of the solar tachocline for general field geometry. This thin region of strong radial and latitudinal differential rotation, between the radiative and convective zones, is unstable at latitudes above 37 degrees, yet is stable closer to the equator. We propose that small-scale magneto-rotational turbulence prevents coherent magnetic dynamo action in the tachocline except in the vicinity of the equator, thus explaining the latitudinal restriction of active regions. Tying the magnetic dynamo to the tachocline elucidates the physical conditions and processes relevant to solar magnetism.
description: 10 pages, 1 figure, accepted for publication in ApJL
A Review of Disease and Development
Creators: name: Liu, Ruiwu
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Economics (econ.GN)
subject: FOS: Economics and business

description: Acemoglu and Johnson (2007) put forward the unprecedented view that health improvement has no significant effect on income growth. To arrive at this conclusion, they constructed predicted mortality as an instrumental variable based on the WHO international disease interventions to analyse this problem. I replicate the process of their research and eliminate some biases in their estimate. In addition, and more importantly, we argue that the construction of their instrumental variable contains a violation of the exclusion restriction of their instrumental variable. This negative correlation between health improvement and income growth still lacks an accurate causal explanation, according to which the instrumental variable they constructed increases reverse causality bias instead of eliminating it.
description: This paper was from my advanced case study report (2019) in the Australian National University
Coulomb-nuclear interference in pion-nucleus bremsstrahlung
Creators: name: Fäldt, Göran
name: Tengblad, Ulla
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Pion-nucleus bremsstrahlung offers a possibility of measuring the structure functions of pion-Compton scattering from a study of the small-momentum-transfer region where the bremsstrahlung reaction is dominated by the single-photon-exchange mechanism. The corresponding cross-section distribution is characterized by a sharp peak at small momentum transfers. But there is also a hadronic contribution which is smooth and constitutes an undesired background. In this communication the modification of the single-photon exchange amplitude by multiple-Coulomb scattering is investigated as well as the Coulomb-nuclear interference term.
description: 21 pages, 5 figures. Eqs.(51,52) corrected; some new figures
Archives in the Life of the User:  What Archives Can Learn from User-Centric Museums
Creators: name: Martin, Jason P.
Publisher: name: See Also
Year: 2016

description: Library, archive, and museum convergence is still a topic of much contention in some academic circles. However, resistance is perhaps most entrenched in the archival discipline. This article attempts to briefly examine why that might be the case, and then asks the question: What can archives learn from museums' relatively-new increased focus on being user-centric?

The author uses the extraordinary scholarship of authors such as Paul F. Marty, W. Boyd Rayward, and numerous others in order to examine changes in libraries and, most specifically, museums, as well as the creation of the museum information professional role and the use of museum informatics. From this examination, the article suggests that archives and archivists could indeed benefit greatly from further explorating into, and adaptation of, the museum world's increasingly user-centric approach. It is furthermore suggested, following in the prior steps of libraries and museums, that the focus of archives should move from a "user in the life of the archive" to an "archive in the life of the user" mentality.
description: See Also, No 2 (2016)
คุณธรรม จริยธรรม จรรยาบรรณวิชาชีพ สำหรับอาจารย์ในสถาบันการศึกษา
Creators: name: ไชยยศ เหมะรัชตะ
Publisher: name: คณะนิติศาสตร์ มหาวิทยาลัยนเรศวร
Year: 2557
Subjects: -

description: 2, 7, วารสารนิติศาสตร์ มหาวิทยาลัยนเรศวร
Tonal Noise of Voluteless Centrifugal Fan Generated by Turbulence Stemming from Upstream Inlet Gap
Creators: name: Ottersten, Martin
name: Yao, Hua-Dong
name: Davidson, Lars
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: In this study, noise generation is investigated for a generic voluteless centrifugal HVAC fan at an off-design operation point where tonal noise increases. The simulations are performed by coupling IDDES with the FW-H acoustic analogy, and the experiments are conducted in a rig consisting of a plenum chamber and a reverberation room. In contrast to typical tonal noise sources induced by the fan blades, we find out that another predominant source is the turbulence stemming from the gap between the fan shroud and the inlet duct. The turbulence evolves along with the shroud and is swept downstream to interact with the top side of the blade leading edge. The interaction accounts for uneven surface pressure distribution on the blades. Moreover, the pressure is significantly unsteady near the shroud. The power spectral density (PSD) of the noise shows obvious tones at 273Hz that is approximately equal to the difference of the blade passing frequency (BPF0) and the fan rotation frequency. By coarsening the mesh resolution near the inlet gap and shroud, we artificially deactivate the gap turbulence in the numerical simulations and, consequently, detect that the tone at 273Hz disappears completely. At this frequency, the PSD contours of surface pressure fluctuations are found potent at the inlet gap and the blade top side only if the gap turbulence is resolved. These findings indicate that the tonal noise source at 273Hz is the interaction between the gap turbulence and blades. As the gap turbulence exists near the shroud wall upstream of the blades, the rotating wall introduces rotational momentum into the turbulence due to the wall friction. Hence the tonal frequency of the interaction is smaller than BPF0 with a decrement of the fan rotation frequency. To the authors' knowledge, it is the first time that voluteless centrifugal fans are studied for the noise generation from the gap turbulence.
description: 25 pages, 19 figures
Seeing Metadata: Representing Digital Collection Metadata
Creators: name: Williamson, Evan Peter
Publisher: name: See Also
Year: 2015

description: Creators of digital content are often narrowly focused on each individual collection or project. In the face of the ever increasing scale of digital collections, it is challenging to step back and evaluate the metadata of the repository as a whole. This project outlines methods to visualize, evaluate, and use metadata in ways that overcome limitations inherent in the traditional management tools and workflows. The results demonstrate that visual analytic approaches have the potential to open up metadata from a new, more holistic perspective—freeing us from the item-level tabular view to grasp the larger patterns and structures in the data. Creating visual representations of metadata will be a valuable tool for management, analysis, and exploration.
description: See Also, No 1 (2015)
DIY Journal: Introduction to OJS [workshop]
Creators: name: Williamson, Evan Peter
Publisher: name: See Also
Year: 2015

description: A lesson plan for a stand alone workshop designed for university students interested in a hands-on introduction to Open Journal Systems (OJS). Designed to promote knowledge of scholarly publishing and complement the OJS hosting services available through the library.
description: See Also, No 1 (2015)
An Exploration of Finding Aid Technologies and NoSQL Databases
Creators: name: Fan, Stephanie
Publisher: name: See Also
Year: 2015

description: While NoSQL databases, specifically document databases such as MongoDB, are not the answer for the majority of storage use cases, technical contributors to the major finding aids information systems should consider these new technologies. The conjunction of archival finding aids technologies and these new data stores has not yet been explored before given the highly siloed nature of the library, archival, and information sciences (LAIS) field and limited development resources that focus on this area. However, there are many similarities between the problems that LAIS system administrators face maintaining descriptive documents and the reasons for why this new class of non-relational databases was developed.
description: See Also, No 1 (2015)
Branching optical frequency transfer with enhanced post automatic phase noise cancellation
Creators: name: Xue, Ruimin
name: Hu, Liang
name: Shen, Jianguo
name: Chen, Jianping
name: Wu, Guiling
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present a technique for coherence transfer of laser light through a branching fiber link, where the optical phase noise induced by environmental perturbations via the fiber link is passively compensated by remote users without the requirements of any active servo components. At each remote site, an acousto-optic modulator (AOM) is simultaneously taken as a frequency distinguisher for distinguishing its unique frequency from other sites' and as an optical actuator for compensating the phase noise coming from the optical fiber. With this configuration, we incorporate a long outside loop path consisting of a fiber-pigtailed AOM into the loop, enabling the significant reduction of the outside loop phase noise in the passive way. To further address the residual out-of-loop phase noise coming from the interferometer and the two-way optical frequency comparison setup, we design a low-noise active temperature stabilization system. Measurements with a back-to-back system show that the stability in our stabilization system is $2\times10^{-16}$ at 1 s, reaching $2\times10^{-20}$ after 10,000 s. Adopting these techniques, we demonstrate transfer of a laser light through a branching fiber network with 50 km and 145 km two fiber links. After being compensated for the 145 km fiber link, the relative frequency instability is $3.4\times10^{-15}$ at the 1 s averaging time and scales down to $3.7\times10^{-19}$ at the 10,000 s averaging time. This proposed technique is suitable for the simultaneous transfer of an optical signal to a number of independent users within a local area.
description: 8 pages, 5 figure, Accepted for publication in Journal Lightwave of Technology
Data literacy instruction in academic libraries: best practices for librarians
Creators: name: Wanner, Amanda
Publisher: name: See Also
Year: 2015

description: This paper discusses the challenges and opportunities of bringing data literacy instruction to academic libraries. Information literacy and digital literacy in libraries has been widely discussed in the library sciences and education literature, but until recently very little focus has been given to data literacy. However, new e-government and open data initiatives over the past decade have created widely available public data that is of great interest to students and academics. Increased technological capabilities to process "big data" have also created new opportunities for the layperson and researcher alike. One popular article claims, "Ensuring that big data creates big value calls for a reskilling effort that is at least as much about fostering a data-driven mindset and analytical culture as it is about adopting new technology" (Harris, 2012). The influx of available data presents unique challenges for librarians. How can libraries play a role, for example, in this “reskilling effort” to develop a “data-driven mindset”?
description: See Also, No 1 (2015)
Analytic determination of lung microgeometry with gas diffusion magnetic resonance
Creators: name: Buhl, Niels
Publisher: name: arXiv
Year: 2021
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Medical Physics (physics.med-ph)
subject: FOS: Physical sciences

description: Through inhalation of, e.g., hyperpolarized $^3$He, it is possible to acquire gas diffusion magnetic resonance measurements that depend on the local geometry in the vast network of microscopic airways that form the respiratory zone of the human lung. Here, we demonstrate that this can be used to determine the dimensions (length and radius) of these airways noninvasively. Specifically, the above technique allows measurement of the weighted time-dependent diffusion coefficient (also called the apparent diffusion coefficient), which we here derive in analytic form using symmetries in the airway network. Agreement with experiment is found for the full span of published hyperpolarized $^3$He diffusion magnetic resonance measurements (diffusion times from milliseconds to seconds) and published invasive airway dimension measurements.
description: 7 pages, 5 figures
Volume estimates for equiangular hyperbolic Coxeter polyhedra
Creators: name: Atkinson, Christopher K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M50; 30F40

description: An equiangular hyperbolic Coxeter polyhedron is a hyperbolic polyhedron where all dihedral angles are equal to π/n for some fixed integer n at least 2. It is a consequence of Andreev's theorem that either n=3 and the polyhedron has all ideal vertices or that n=2. Volume estimates are given for all equiangular hyperbolic Coxeter polyhedra.
description: 27 pages, 11 figures; corrected typo in Theorem 2.4
Five-Branes in M-Theory and a Two-Dimensional Geometric Langlands Duality
Creators: name: Tan, Meng-Chwan
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: Representation Theory (math.RT)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: A recent attempt to extend the geometric Langlands duality to affine Kac-Moody groups, has led Braverman and Finkelberg [arXiv:0711.2083] to conjecture a mathematical relation between the intersection cohomology of the moduli space of G-bundles on certain singular complex surfaces, and the integrable representations of the Langlands dual of an associated affine G-algebra, where G is any simply-connected semisimple group. For the A-type groups, where the conjecture has been mathematically verified to a large extent, we show that the relation has a natural physical interpretation in terms of six-dimensional compactifications of M-theory with coincident five-branes wrapping certain hyperkahler four-manifolds; in particular, it can be understood as an expected invariance in the resulting spacetime BPS spectrum under string dualities. By replacing the singular complex surface with a smooth multi-Taub-NUT manifold, we find agreement with a closely related result demonstrated earlier via purely field-theoretic considerations by Witten. By adding OM five-planes to the original analysis, we argue that an analogous relation involving the non-simply-connected D-type groups, ought to hold as well. This is the first example of a string-theoretic interpretation of such a two-dimensional extension to complex surfaces of the geometric Langlands duality for the A-D groups.
description: 43 pages. Technical refinement of section 4.3. Minor correction of sections 5.2 and 5.3: level 2k changed to k
สูตร T-formula สำหรับประเมินความรุนแรงของโรคหลอดเลือดเกินในเด็กแรกเกิด
Creators: name: อุเทน บุญมี, พญ.ปริมพัชร์ ไวทยวงศ์สกุล
Publisher: name: Mahidol University
Year: 2019
Subjects: โรคหลอดเลือดเกิน
การตรวจคลื่นเสียงสะท้อนหัวใจ
เด็กแรกเกิด

description: Mahidol R2R e-Journal, 6, 1, 24-30
Prediction of embankment performance using in-situ tests
Creators: name: Leclair, Donna Gail
Publisher: name: University of British Columbia
Year: 2010

description: In-situ piezocone, flat dilatometer, and screw plate tests were carried out adjacent to the site of several large earth embankments, founded on a deep deposit of compressible soil. Settlement records since construction were available for two of the embankments. Geotechnical parameters were not back analyzed from the case record, rather, embankment performance was predicted on the basis of parameters interpreted from the in-situ tests alone. Consolidation characteristics were interpreted from the measurement of dissipation of excess pore pressures using the piezocone and dilatometer. Both devices provided complementary results in terms of an appropriate coefficient of consolidation. The excellent stratigraphic profile furnished by the piezocone (CPTU) tests proved to be a most valuable feature. The stratigraphic detail provided by the CPTU tests performed across the site identified continuous, free (framing soil layers which would generally be missed in a conventional geotechnical investigation using a drilled borehole with discrete sampling. The identification of these layers was of paramount importance in the prediction of settlement rate. A one-dimensional analysis formed the basis for the settlement predictions, and was found to be satisfactory. Settlement magnitudes were predicted within 10% of the observed measurements, parallelling the observed rate of settlement throughout the embankment construction period in the early 1970's and to the present date. Key words: settlement, deltaic soils, embankment, in-situ testing, piezocone, flat dilatometer, screw plate, coefficient of consolidation, compressibility, pore pressure dissipation.
title: Современные тенденции развития законодательства Российской Федерации о несостоятельности (банкротстве)
title: Modern Trends in the Development of the Russian Federation Legislation on Insolvency (Bankruptcy)
Creators: name: Любаненко, Андрей Владимирович
name: Чукреев, Андрей Александрович
Publisher: name: Издательский центр СурГУ
Year: 2021

description: Предметом исследования является законодательство Российской Федерации о несостоятельности (банкротстве). Цель исследования – выявить тенденции и перспективы развития отечественного законодательства в сфере банкротства на современном этапе. В ходе исследования были использованы как общенаучные, так и частнонаучные методы научного познания: формально-логический, системный, формально-юридический, историко-правовой и сравнительно-правовой методы. В России в связи с возвратом к рыночной экономике было возрождено законодательство о несостоятельности (банкротстве), которое за постсоветский период прошло большой путь становления и развития. При этом оно остается относительно нестабильным. Это делает рассматриваемый правовой институт и практику его применения недостаточно предсказуемыми. Однако российское законодательство о несостоятельности (банкротстве) продолжает совершенствоваться. На сегодняшний день назрела необходимость дальнейшей существенной модернизации Федерального закона от 26 октября 2002 г. № 127-ФЗ «О несостоятельности (банкротстве)» в части банкротства юридических лиц. Для этого в результате многолетней работы Министерством экономического развития Российской Федерации подготовлен проект закона, который внесен в мае 2021 г. на рассмотрение в Государственную Думу.
description: The subject of the research is the Russian Federation legislation on insolvency (bankruptcy). The objective of the study is to identify trends and prospects for the development of domestic legislation in the field of bankruptcy at the present stage. In the course of the research, both general scientific and specific scientific methods of scientific knowledge are used: formal and logical, systemic, formal and legal, historical and legal, comparative legal methods.
In Russia, in connection with the return to a market economy, legislation on insolvency (bankruptcy) was revived, which in the post-Soviet period has passed a long way of its formation and development. Still, it remains relatively unstable. This makes the legal institution under consideration and the practice of its application insufficiently predictable. However, the Russian legislation on insolvency (bankruptcy) continues to improve.
Today there is a need for further substantial modernization of the Federal Law of October 26, 2002, No. 127-FZ “On insolvency (bankruptcy)” in terms of bankruptcy of legal entities. For this, as a result of many years of work, the Ministry of Economic Development of the Russian Federation has prepared a draft law that should be submitted for consideration to the State Duma of the Russian Federation in 2021.
Radial oscillations in neutron stars from QCD
Creators: name: Jiménez, José C.
name: Fraga, Eduardo S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the stability against infinitesimal radial oscillations of neutron stars generated by a set of equations of state obtained from first-principle calculations in cold and dense QCD and constrained by observational data. We consider mild and large violations of the conformal bound, $c_{s} = 1/\sqrt{3}$, in stars that can possibly contain a quark matter core. Some neutron star families in the mass-radius diagram become dynamically unstable due to large oscillation amplitudes near the core.
description: 8 pages, 5 figures
การได้มาซึ่งสมาชิกวุฒิสภา : ศึกษาเปรียบเทียบระหว่างประเทศไทย กัมพูชา และฟิลิปปินส์
Creators: name: ประยูร สิทธิประการ
Publisher: name: คณะนิติศาสตร์ มหาวิทยาลัยนเรศวร
Year: 2557
Subjects: ไทย กัมพูชา และฟิลิปปินส์, การเปรียบเทียบ, การได้มาซึ่งสมาชิกวุฒิสภา

description: 2, 7, วารสารนิติศาสตร์ มหาวิทยาลัยนเรศวร
Comment on "Limits on the Time Variation of the Electromagnetic Fine-Structure Constant in the Low Energy Limit from Absorption Lines in the Spectra of Distant Quasars"
Creators: name: Murphy, Michael T.
name: Webb, John K.
name: Flambaum, Victor V.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: In their Letter [Phys. Rev. Lett. 92, 121302 (2004)] (also [Astron. Astrophys. 417, 853 (2004)]), Srianand et al. analysed optical spectra of heavy-element species in 23 absorption systems along background quasar sight-lines, reporting limits on relative variations in the fine-structure constant: da/a=(-0.06+/-0.06) x 10^{-5}. Here we demonstrate basic flaws in their analysis, using the same data and absorption profile fits, which led to spurious values of da/a and significantly underestimated uncertainties. We conclude that these data and fits offer no stringent test of previous evidence for a varying alpha. In their Reply (arXiv:0711.1742) to this Comment, Srianand et al. state or argue several points regarding their original analysis and our new analysis. We discuss these points here, dismissing all of them because they are demonstrably incorrect or because they rely on a flawed application of simple statistical arguments.
description: 1+2 pages, 1 EPS figure. Page 1 accepted as PRL Comment on arXiv:astro-ph/0402177 . Further details available in arXiv:astro-ph/0612407 . v2: Added critical discussion of Reply from Srianand et al. (arXiv:0711.1742)
Pictures of the Northwoods: A Bibliography of Illustrated Children's Literature from Minnesota
Creators: name: Williamson, Evan Peter
Publisher: name: See Also
Year: 2015

description: A bibliography of illustrated children's books focusing on collaborations of artists and authors with Minnesota ties depicting northwoods themes. The project was first inspired by Antler, Bear, Canoe: A Northwoods Alphabet Year featuring the beautiful woodcut illustrations of Betsy Bowen from Grand Marais. It highlights local creativity, beautiful art, and northwoods subject matter.
description: See Also, No 1 (2015)
Book Appeal, Literacy, and the Reader: Readers’ Advisory in practice and theory
Creators: name: Ferri, Anna
Publisher: name: See Also
Year: 2015

description: This paper examines the development of “appeal factors” as a guiding principle of modern readers’ advisory (RA) services and training programs in public libraries. There is a growing body of literature that suggests this method, with the focus on factors intrinsic to the materials, limits the profession’s understanding of how readers experience reading and understand that experience. In examining existing literature, it is clear that more research is needed on how the reader, rather than the material, impacts the success of the readers’ advisory experience. If RA is to survive and thrive into future iterations of public library practice, then it is essential that we push the existing materials-focused model of book appeal into a more nuanced and reader-focused model.
description: See Also, No 1 (2015)