cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Characterization of petrophysical properties of organic-rich shales by experiments, lab measurements and machine learning analysis
Creators: name: Jiang, Han
Publisher: name: The University of Texas at Austin
Year: 2018
Subjects: Shale
Organic matter
Petrophysics
Permeability
Gas sorption
Machine learning
Clustering

description: The increasing significance of shale plays leads to the need for deeper understanding of shale behavior. Laboratory characterization of petrophysical properties is an important part of shale resource evaluation. The characterization, however, remains challenging due to the complicated nature of shale. This work aims at better characterization of shale using experiments, lab measurements, and machine leaning analysis. During hydraulic fracturing, besides tensile failure, the adjacent shale matrix is subjected to massive shear deformation. The interaction of shale pore system and shear deformation, and impacts on production remains unknown. This work investigates the response of shale nanoscale pore system to shear deformation using gas sorption and scanning electron microscope (SEM) imaging. Shale samples are deformed by confined compressive strength tests. After failure, fractures in nanoscale are observed to follow coarser grain boundaries and laminae of OM and matrix materials. Most samples display increases in pore structural parameters. Results suggest that the hydrocarbon mobility may be enhanced by the interaction of the OM laminae and the shear fracturing. Past studied show that the evolution of pore structure of shale is associated with thermal maturation. However, the evolution of shale transport propreties related to thermal maturation is unclear due to the difficulty of conducting permeability measurement for shale.This work studies evolution of permeability and pore structure measurements using heat treatment. Samples are heated from 110°C to 650°C. Gas sorption and GRI (Gas Research Institute) permeability measurements are performed. Results show that those petrophysical parameters, especially permeability, are sensitive to drying temperature. Multiscale pore network features of shale are also revealed in this study. Characterizing fluids in shale using nuclear magnetic resonance (NMR) T₁-T₂ maps is often done manually, which is difficult and subjected to human decisions. This work proposes a new approach based on Gaussian mixture model (GMM) clustering analysis. Six clustering algorithms are performed on T₁1-T₂ maps. To select the optimal cluster number and best algorithm, two cluster validity indices are proposed. Results validate the two indices, and GMM is found to be the best algorithm. A general fluid partition pattern is obtained by GMM, which is less sensitive to rock lithology. In addition, the clustering performance can be enhanced by drying the sample
Spin dynamics in a one-dimensional ferromagnetic Bose gas
Creators: name: Zvonarev, M. B.
name: Cheianov, V. V.
name: Giamarchi, T.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We investigate the propagation of spin excitations in a one-dimensional (1D) ferromagnetic Bose gas. While the spectrum of longitudinal spin waves in this system is sound-like, the dispersion of transverse spin excitations is quadratic making a direct application of the Luttinger Liquid (LL) theory impossible. By using a combination of different analytic methods we derive the large time asymptotic behavior of the spin-spin dynamical correlation function for strong interparticle repulsion. The result has an unusual structure associated with a crossover from the regime of trapped spin wave to an open regime and does not have analogues in known low-energy universality classes of quantum 1D systems.
description: Final version as appears in Phys. Rev. Lett.; Eqs. (6) and (14) have been corrected
title: Ветеринарно-санитарная экспертиза
Creators: name: ELS IPR BOOKS
Publisher: name: Ай Пи Ар Медиа
Year: 2021

description: В учебнике рассмотрены основные вопросы проведения ветеринарно-санитарной экспертизы продуктов и сырья животного происхождения. Изложены аспекты транспортировки убойных животных, требования, предъявляемые к местам убоя и убойным животным. Описана морфология и химии мяса и мясопродуктов, приведена методика исследования продуктов животного происхождения на доброкачественность. Представлена ветеринарно-санитарная экспертиза и санитарная оценка продуктов убоя животных при инфекционных, инвазионных и незаразных болезнях, а также методика и техника послеубойного ветеринарно-санитарного осмотра туш и органов. Рассмотрены вопросы ветеринарно-санитарной экспертизы молока, молокопродуктов, яиц, меда, рыбы, продуктов растительного происхождения и описаны правила контроля пищевых продуктов на продовольственных рынках. Учебник подготовлен с учетом требований Федерального государственного образовательного стандарта высшего образования. Предназначен для студентов, обучающихся по направлению подготовки 36.03.01 «Ветеринарно-санитарная экспертиза» и специальности 36.05.01 «Ветеринария», изучающих дисциплину «Ветеринарно-санитарная экспертиза». Предназначен для студентов, обучающихся по направлению подготовки 36.03.01 «Ветеринарно-санитарная экспертиза» и специальности 36.05.01 «Ветеринария», изучающих дисциплину «Ветеринарно-санитарная экспертиза». Издание также может быть использовано студентами направления подготовки 35.03.07 «Технология производства и переработки сельскохозяйственной продукции» при изучении курса «Основы ветеринарии и ветеринарно-санитарной экспертизы».
title: Model Estimates Of Interannual Stratification Variability On Southern Georges Bank, 1985-1992 And 1995
Creators: name: Bisagni, J.J.
Publisher: name: ASC 1997 - T
Year: 2024
Subjects: Ecosystem observation, processes and dynamics

description: No abstracts are to be cited without prior reference to the author.In this study, input time series of five-day averaged yertical heat flux, tidal stirring and wind mixing, ,togetherwith a simple one-dimensional energy model incorporating the effects of a bottom boundary layer,spatially-varying bottom roughness and spatially varying but constant tidal mixing efficiencies areused to, examine interannual variability, of monthly-averaged stratification on southem Georges Bank from 1985~1992 and 1995.
Multiple zeros of nonlinear systems
Creators: name: Dayton, Barry H.
name: Li, Tien-Yien
name: Zeng, Zhonggang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65H10, 68W30

description: As an attempt to bridge between numerical analysis and algebraic geometry, this paper formulates the multiplicity for the general nonlinear system at an isolated zero, presents an algorithm for computing the multiplicity structure, proposes a depth-deflation method for accurate computation of multiple zeros, and introduces the basic algebraic theory of the multiplicity. Furthermore, this paper elaborates and proves some fundamental properties of the multiplicity, including local finiteness, consistency, perturbation invariance, and depth-deflatability. As a justification of this formulation, the multiplicity is proved to be consistent with the multiplicity defined in algebraic geometry for the special case of polynomial systems. The proposed algorithms can accurately compute the multiplicity and the multiple zeros using floating point arithmetic even if the nonlinear system is perturbed.
Beyond Simple AGN Unification with Chandra-observed 3CRR Sources
Creators: name: Kuraszkiewicz, Joanna
name: Wilkes, Belinda J.
name: Atanas, Adam
name: Buchner, Johannes
name: McDowell, Jonathan C.
name: Willner, S. P.
name: Ashby, Matthew L. N.
name: Azadi, Mojegan
name: Barthel, Peter
name: Haas, Martin
name: Worrall, Diana M.
name: Birkinshaw, Mark
name: Antonucci, Robert
name: Chini, Rolf
name: Fazio, Giovanni G.
name: Lawrence, Charles
name: Ogle, Patrick
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Low-frequency radio selection finds radio-bright galaxies regardless of the amount of obscuration by gas and dust. We report \chandra\ observations of a complete 178~MHz-selected, and so orientation unbiased, sample of 44 $0.5
title: Advection Of Fish Larvae Along The Southem Flank Of Georges Bank In The Spring Of 1995 And 1997
Creators: name: Manning, J.P.
name: Naimie, C.E.
name: Lough, R.G.
name: Churchill, J.
Publisher: name: ASC 1997 - T
Year: 2024
Subjects: Ecosystem observation, processes and dynamics

description: No abstracts are to be cited without prior reference to the author.The Dartmouth Circulation Model (Lynch, et al., 1996) has been used to advect observed fishlarvae concentrations along the southem flank of Georges Bank over the period of several daysin mid-May of both 1995 and 1997. The 3-d finite element model was forced vvith M2 tides andobserved winds.
Equation of state for hybrid compact stars with a nonlocal chiral quark model
Creators: name: Grunfeld, A. G.
name: Berdermann, J.
name: Blaschke, D. B.
name: Klahn, T.
name: Dumm, D. Gomez
name: Scoccola, N. N.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the thermodynamics of two flavor color superconducting (2SC) quark matter within a nonlocal chiral quark model, using both instantaneous and covariant nonlocal interactions. For applications to compact stars, we impose conditions of electric and color charge neutrality as well as beta equilibrium and construct a phase transition to the hadronic matter phase described within the Dirac-Brueckner-Hartree-Fock (DBHF) approach. We obtain mass-radius relations for hybrid star configurations which fulfill modern observational constraints, including compact star masses above 2 M_sun.
description: 4 pages, 1 figure
Additional file 1: of Association of the hypertriglyceridemic waist phenotype and severity of acute pancreatitis
Creators: name: Ding, Yanbing
name: Zhang, Min
name: Wang, Lisheng
name: Yin, Tao
name: Wang, Ningzhi
name: Wu, Jian
name: Zhi, Jiehua
name: Chen, Weiwei
name: Wu, Keyan
name: Gong, Weijuan
name: Xiao, Weiming
name: Xu, Zhenglei
name: Lu, Guotao
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Molecular Biology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Science Policy
subject: Hematology

description: Figure S1. After admission, the AP patient underwent CT scan to assess the disease. The waist circumference was regarded as an ellipse in the mathematical model. From the above diagram we can see that the long axis was 311.5 mm and the short one was 208.7 mm on the L4 plane, and the coefficient was × (short axis + long axis) ÷2 according to the ellipse formula. It is concluded that the Waist circumference of the patient is 82 cm. (DOCX 1308 kb)
title: Технология первичной переработки продуктов животноводства
Creators: name: ELS IPR BOOKS
Publisher: name: Ай Пи Ар Медиа
Year: 2021

description: В учебнике изложены основные вопросы технологии первичной переработки продуктов животноводства. Подробно описаны категории убойных животных по полу, возрасту и упитанности, рассмотрено их значение для мясной промышленности. Представлены особенности переработки мяса, яиц, меда, рыбы; приведены их свойства, химический состав, органолептические показатели, а также методы определения качества. Учебник подготовлен с учетом требований Федерального государственного образовательного стандарта высшего образования. Предназначен для студентов, обучающихся по направлению подготовки 36.03.02 «Зоотехния», изучающих дисциплину «Технология первичной переработки продуктов животноводства». Издание также может быть использовано студентами направления подготовки 35.03.07 «Технология производства и переработки сельскохозяйственной продукции» при изучении курса «Технология хранения и переработки продукции животноводства».
MOESM6 of Comparative outcomes of heart failure among existent classes of anti-diabetic agents: a network meta-analysis of 171,253 participants from 91 randomized controlled trials
Creators: name: Yang, Da-ya
name: He, Xin
name: Liang, Hui-wei
name: Zhang, Shao-zhao
name: Zhong, Xiang-bin
name: Luo, Chu-fan
name: Du, Zhi-min
name: He, Jian-gui
name: Zhuang, Xiao-dong
name: Liao, Xin-xue
Publisher: name: figshare
Year: 2019
Subjects: Medicine
Cell Biology
Biological Sciences not elsewhere classified
Developmental Biology
Science Policy

description: Additional file 6: Figure S2. Sensitivity analysis after excluding studies with an arm of fewer than 100 patients.
Wheeled pro(p)file of Batalin-Vilkovisky formalism
Creators: name: Merkulov, S. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Differential Geometry (math.DG)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 18D50; 53D55

description: Using technique of wheeled props we establish a correspondence between the homotopy theory of unimodular Lie 1-bialgebras and the famous Batalin-Vilkovisky formalism. Solutions of the so called quantum master equation satisfying certain boundary conditions are proven to be in 1-1 correspondence with representations of a wheeled dg prop which, on the one hand, is isomorphic to the cobar construction of the prop of unimodular Lie 1-bialgebras and, on the other hand, is quasi-isomorphic to the dg wheeled prop of unimodular Poisson structures. These results allow us to apply properadic methods for computing formulae for a homotopy transfer of a unimodular Lie 1-bialgebra structure on an arbitrary complex to the associated quantum master function on its cohomology. It is proven that in the category of quantum BV manifolds associated with the homotopy theory of unimodular Lie 1-bialgebras quasi-isomorphisms are equivalence relations. It is shown that Losev-Mnev's BF theory for unimodular Lie algebras can be naturally extended to the case of unimodular Lie 1-bialgebras (and, eventually, to the case of unimodular Poisson structures). Using a finite-dimensional version of the Batalin-Vilkovisky quantization formalism it is rigorously proven that the Feynman integrals computing the effective action of this new BF theory describe precisely homotopy transfer formulae obtained within the wheeled properadic approach to the quantum master equation. Quantum corrections (which are present in our BF model to all orders of the Planck constant) correspond precisely to what are often called "higher Massey products" in the homological algebra.
description: 42 pages. The journal version
Bimodality - a Sign of Critical Behavior in Nuclear Reactions
Creators: name: Fevre, A. Le
name: Aichelin, J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The recently discovered coexistence of multifragmentation and residue production for the same total transverse energy of light charged particles can be well reproduced in numerical simulations of the heavy ion reactions. A detailed analysis shows that fluctuations (introduced by elementary nucleon-nucleon collisions) determine which of the exit states is realized. Thus we observe for the first time nonlinear dynamics in heavy ion reactions. Also the scaling of the coexistence region with beam energy is well reproduced in these results from the QMD simulation program.
description: references update, slightly shortend, final version to be published in Phys. Rev. Lett
title: A Survey Of Oestrogenic Activity In Uk Estuaries And Its Effects On Gonadal Development Of The Flounder Platichthys Flesus
Creators: name: Allen, Yvonne
name: Thain, John
name: Matthiessen, Peter
name: Scott, Alexander P.
name: Haworth, Sarah
name: Feist, Steve
Publisher: name: ASC 1997 - U
Year: 2024
Subjects: Ecosystem observation, processes and dynamics
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author.Oestrogenic discharges are known or suspeeted to be present in many UK estuariesand are also occurring from offshore oil and gas installations. The aim of this studywas to establish whether oestrogens and their mimics are present in marine waters ateoneentrations which can produee biologieal responses in fish, and, if so, to establishwhether the effects are likely to be harmful to populations and communities throughchanges in reproductive and other physiological processes.
Gwadar Port as an Economic Zone its impact on Region
Creators: name: Ali, Dildar
Publisher: name: Zenodo
Year: 2021
Subjects: CPEC, Gwadar, Pakistan, India, Reservation, Impacts

description: China Pakistan Economic Corridor is a bunch of multiple projects on construction of railroad, airport, and pipeline projects to import and export Chinese goods at intra-regional and ultra-regional degrees, Gwadar is the hub and center of this Corridor, its cost’s US $46 billion increase to the US $64 billion including energy projects.CPEC is the project of investment in energy and a corridor to upgrade Gwadar, provide railroad connectivity, and enhance trade and transport at intra and extra-regional levels. The project has socio-economic benefits. Although India and the US have reservations the project has no military ambitions. Pakistan will generate revenue, find employment opportunities, up-gradation of railroads, furthermore, it will end the energy crisis. What benefits, prospects and economic securities Pakistan would have from this CPEC, shall be studied in this study. The purpose of this study is to look into benefits for Pakistan and China, reservation and defense of the project, role of state and non-state actors, and regional importance with special reference to its impacts on a regional level. To conduct a study on this particular subject qualitative and quantitative methods are chosen. Primary cum Secondary sources are used. The study is concluded with its positive and negative impacts on Pakistan. It will end the energy crisis, boost our economy, provide shelter from insurgencies in Baluchistan, develop in infrastructure and transport corridor, it will reduce rice crop cultivation, will have a lingual impact on society, and increase communism.
Hardy's non-locality and generalized non-local theory
Creators: name: Choudhary, Sujit K.
name: Ghosh, Sibasish
name: Kar, Guruprasad
name: Kunkri, Samir
name: Rahaman, Ramij
name: Roy, Anirban
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Hardy's non-locality theorem for multiple two-level systems is explored in the context of generalized nonlocal theory. We find nonlocal but non-signaling probabilities, providing Hardy's nonlocal argument, which are higher than those in Quantum Mechanics. Maximum probability of success of Hardy's argument is obtained for three two-level systems in quantum as well as in a more generalized theory. Interestingly, the maximum in the nonlocal generalized theory for both the cases turns out to be same.
description: 15 pages
MOESM7 of Comparative outcomes of heart failure among existent classes of anti-diabetic agents: a network meta-analysis of 171,253 participants from 91 randomized controlled trials
Creators: name: Yang, Da-ya
name: He, Xin
name: Liang, Hui-wei
name: Zhang, Shao-zhao
name: Zhong, Xiang-bin
name: Luo, Chu-fan
name: Du, Zhi-min
name: He, Jian-gui
name: Zhuang, Xiao-dong
name: Liao, Xin-xue
Publisher: name: figshare
Year: 2019
Subjects: Medicine
Cell Biology
Biological Sciences not elsewhere classified
Developmental Biology

description: Additional file 7: Figure S3. Sensitivity analysis after excluding studies with a follow-up period of fewer than 48 weeks.
Realisation of low-voltage square-root-domain all-pass filters
Creators: name: Khanday, Farooq A.
name: Shah, Nisar A.
Publisher: name: Maejo University
Year: 2013
Subjects: analog integrated circuits,companding filters,current-mode circuits,squareroot-domain filters,all-pass filters

description: 3, 7, Maejo International Journal of Science and Technology
การพัฒนาหลักสูตรฝึกอบรมเครือข่ายเพื่อการดำเนินงานประกันคุณภาพการศึกษาภายในมหาวิทยาลัยมหาสารคาม
Creators: name: กัมปนาท อาชา
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2556
Subjects: หลักสูตรฝึกอบรม, ประกันคุณภาพการศึกษา, เครือข่าย

description: 1, 4, วารสารสาระคาม
Diagrammatic quantum Monte Carlo study of an acoustic lattice polaron
Creators: name: Hahn, Thomas
name: Nagaosa, Naoto
name: Franchini, Cesare
name: Mishchenko, Andrey S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present the first approximation free diagrammatic Monte Carlo study of a lattice polaron interacting with an acoustic phonon branch through the deformation potential. Weak and strong coupling regimes are separated by a self-trapping region where quantum resonance between various possible lattice deformations is seen in the ground state properties, spectral function, and optical conductivity. The unique feature of such polaron is the interplay between long- and short wavelength acoustic vibrations creating a composite phonon cloud and leading to persistent self-trapping due to the existence of multiple quasi-stable states. This results in a spectral response whose structure is much more complex than in any of the previously considered polaron models.
description: 6 pages, 4 figures + supplemental material
BeamLearning: an end-to-end Deep Learning approach for the angular localization of sound sources using raw multichannel acoustic pressure data
Creators: name: Pujol, Hadrien
name: Bavu, Éric
name: Garcia, Alexandre
Publisher: name: arXiv
Year: 2021
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Sound (cs.SD)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Sound sources localization using multichannel signal processing has been a subject of active research for decades. In recent years, the use of deep learning in audio signal processing has allowed to drastically improve performances for machine hearing. This has motivated the scientific community to also develop machine learning strategies for source localization applications. In this paper, we present BeamLearning, a multi-resolution deep learning approach that allows to encode relevant information contained in unprocessed time domain acoustic signals captured by microphone arrays. The use of raw data aims at avoiding simplifying hypothesis that most traditional model-based localization methods rely on. Benefits of its use are shown for realtime sound source 2D-localization tasks in reverberating and noisy environments. Since supervised machine learning approaches require large-sized, physically realistic, precisely labelled datasets, we also developed a fast GPU-based computation of room impulse responses using fractional delays for image source models. A thorough analysis of the network representation and extensive performance tests are carried out using the BeamLearning network with synthetic and experimental datasets. Obtained results demonstrate that the BeamLearning approach significantly outperforms the wideband MUSIC and SRP-PHAT methods in terms of localization accuracy and computational efficiency in presence of heavy measurement noise and reverberation.
description: The following article has been submitted to the special issue on Machine Learning in Acoustics in JASA. After it is published, it will be found at http://asa.scitation.org/journal/jas
Two-integral distribution functions for axisymmetric systems
Creators: name: Jiang, Zhenglu
name: Ossipkov, Leonid
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Some formulae are presented for finding two-integral distribution functions (DFs) which depends only on the two classical integrals of the energy and the magnitude of the angular momentum with respect to the axis of symmetry for stellar systems with known axisymmetric densities. They come from an combination of the ideas of Eddington and Fricke and they are also an extension of those shown by Jiang and Ossipkov for finding anisotropic DFs for spherical galaxies. The density of the system is required to be expressed as a sum of products of functions of the potential and of the radial coordinate. The solution corresponding to this type of density is in turn a sum of products of functions of the energy and of the magnitude of the angular momentum about the axis of symmetry. The product of the density and its radial velocity dispersion can be also expressed as a sum of products of functions of the potential and of the radial coordinate. It can be further known that the density multipied by its rotational velocity dispersion is equal to a sum of products of functions of the potential and of the radial coordinate minus the product of the density and the square of its mean rotational velocity. These formulae can be applied to the Binney and the Lynden-Bell models. An infinity of the odd DFs for the Binney model can be also found under the assumption of the laws of the rotational velocity.
title: Body Burdens Of Lipophilic Xenobiotics And Reproductive Success In Baltic Cod (Gadus Morlzua L.)
Creators: name: Petersen, Gitte I.
name: Gerup, Jens
name: Nilsson, Lilly
name: Larsen, Jan René
name: Schneider, Rolf
Publisher: name: ASC 1997 - U
Year: 2024
Subjects: Ecosystem observation, processes and dynamics
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author.Running ripe Baltic cad (Gadus morlzua) were caught in the Gotland Basin, Gdansk Basin andBoriiliolm Basin iri June/July 1996. Eggs from 55 females were stripped and artificiallyiriseminated arid incubated in Baldc seawater at 7°C arid a salinity of 15%. Egg size, viablehatch, larval size at hatch, larval. survival, larval growth, larval malfonnation anddevelopnierital stage of 10 days post hatch larvae were used as effect parameters in theassessmerit of the effects of lipophiÜc xenobiotics deteimiried in ovaries of parental flsh.
Field-driven dynamics of magnetic Hopfions
Creators: name: Raftrey, D.
name: Fischer, P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present micromagnetic simulations on resonant spin wave modes of magnetic Hopfions up to 15 GHz driven by external magnetic fields. A sharp transition is found around 32 mT coinciding with a transition from Hopfions to magnetic torons. The modes exhibit characteristic amplitudes in frequency space accompanied by unique localization patterns in real space, and are found to be robust to damping around topological features, particularly vortex lines in Hopfions and Bloch points in torons. The marked differences in spin wave spectra between Hopfions, torons and target skyrmions can serve as fingerprints in future experimental validation studies of these novel 3d topological spin textures.
description: 18 pg, 5 figs
New constraints on H_0 and Omega_M from SZE/X-RAY data and Baryon Acoustic Oscillations
Creators: name: Holanda, R. F. L.
name: Cunha, J. V.
name: Lima, J. A. S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The Hubble constant, $H_0$, sets the scale of the size and age of the Universe and its determination from independent methods is still worthwhile to be investigated. In this article, by using the Sunyaev-Zel`dovich effect and X-ray surface brightness data from 38 galaxy clusters observed by Bonamente {\it{et al.}} (2006), we obtain a new estimate of $H_0$ in the context of a flat $Λ$CDM model. There is a degeneracy on the mass density parameter ($Ω_{m}$) which is broken by applying a joint analysis involving the baryon acoustic oscillations (BAO) as given by Sloan Digital Sky Survey (SDSS). This happens because the BAO signature does not depend on $H_0$. Our basic finding is that a joint analysis involving these tests yield $H_0= 0.765^{+0.035}_{-0.033}$ km s$^{-1}$ Mpc$^{-1}$ and $Ω_{m}=0.27^{+0.03}_{-0.02}$. Since the hypothesis of spherical geometry assumed by Bonamente {\it {et al.}} is questionable, we have also compared the above results to a recent work where a sample of triaxial galaxy clusters has been considered.
description: 8 pages, 4 figures, 1 table, accepted version in the general relativity and gravitation
title: Recent Variations Of Hydrological Regime In The South-Eastern Baltic Sea And Their Impact Upon Cod Spawning Conditions
Creators: name: A.S., Zezera
name: E.S., Zezera
Publisher: name: ASC 1997 - U
Year: 2024
Subjects: Ecosystem observation, processes and dynamics
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author.The works in the frames of South-Eastern Baltic Sea monitoring, annyally performed by AtlantNIRO from 1992, have been continued in the end of 1996. Main trends of deep water hydrology variations were analysed in Gdansk and southern Gotland Deeps from 1992 to 1997.
Apprentice for Event Generator Tuning
Creators: name: Krishnamoorthy, Mohan
name: Schulz, Holger
name: Ju, Xiangyang
name: Wang, Wenjing
name: Leyffer, Sven
name: Marshall, Zachary
name: Mrenna, Stephen
name: Muller, Juliane
name: Kowalkowski, James B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Apprentice is a tool developed for event generator tuning. It contains a range of conceptual improvements and extensions over the tuning tool Professor. Its core functionality remains the construction of a multivariate analytic surrogate model to computationally expensive Monte-Carlo event generator predictions. The surrogate model is used for numerical optimization in chi-square minimization and likelihood evaluation. Apprentice also introduces algorithms to automate the selection of observable weights to minimize the effect of mis-modeling in the event generators. We illustrate our improvements for the task of MC-generator tuning and limit setting.
description: 9 pages, 2 figures, submitted to the 25th International Conference on Computing in High-Energy and Nuclear Physics
Dark-Bright Soliton Bound States in a Microresonator
Creators: name: Zhang, Shuangyou
name: Bi, Toby
name: Ghalanos, George N.
name: Moroney, Niall P.
name: Del Bino, Leonardo.
name: Del'Haye, Pascal
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The recent discovery of dissipative Kerr solitons in microresonators has facilitated the development of fully coherent, chip-scale frequency combs. In addition, dark soliton pulses have been observed in microresonators in the normal dispersion regime. Here, we report bound states of mutually trapped dark-bright soliton pairs in a microresonator. The soliton pairs are generated seeding two modes with opposite dispersion but with similar group velocities. One laser operating in the anomalous dispersion regime generates a bright soliton microcomb, while the other laser in the normal dispersion regime creates a dark soliton via Kerr-induced cross-phase modulation with the bright soliton. Numerical simulations agree well with experimental results and reveal a novel mechanism to generate dark soliton pulses. The trapping of dark and bright solitons can lead to light states with the intriguing property of constant output power while spectrally resembling a frequency comb. These results can be of interest for telecommunication systems, frequency comb applications, ultrafast optics and soliton states in atomic physics.
Do the periodic activities of repeating fast radio bursts represent the spins of neutron stars?
Creators: name: Xu, Kun
name: Li, Qiao-Chu
name: Yang, Yuan-Pei
name: Li, Xiang-Dong
name: Dai, Zi-Gao
name: Liu, Jifeng
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Fast radio bursts (FRBs) are mysterious radio transients with millisecond durations. Recently, a periodic activity of $\sim$16 day and a possible periodicity of $\sim$159 day were detected to arise from FRB 180916.J0158+65 and FRB 121102, respectively, and the spin period of a slow-rotation magnetar was further considered to be one of possibilities to explain the periodic activities of repeating FRBs. For isolated neutron stars, the spin evolution suggests that it's difficult to reach several hours. In this work, we mainly focus on the possible maximum spin period of isolated NSs / magnetars dominated by an interaction between star's magnetic field and the disk. We find that the disk wind plays an important role in spin evolution, whose influence varies the power law index in the evolution equation of mass flow rate. For a magnetar without disk wind, the longest spin period is tens of hours. When the disk wind with a classical parameter is involved, the maximum spin period can reach hundreds of hours. But for a much extremely large index of mass flow rate due to disk wind or other angular momentum extraction processes, a spin period of $\sim$(16-160) days is still possible.
description: Accepted for publication in ApJ
Cosmology with Twisted Tori
Creators: name: Karthauser, Josef L. P.
name: Saffin, P. M.
name: Hindmarsh, Mark
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider the cosmological role of the scalar fields generated by the compactification of 11-dimensional Einstein gravity on a 7D elliptic twisted torus, which has the attractive features of giving rise to a positive semi-definite potential, and partially fixing the moduli. This compactification is therefore relevant for low energy M-theory, 11D supergravity. We find that slow-roll inflation with the moduli is not possible, but that there is a novel scaling solution in Friedmann cosmologies in which the massive moduli oscillate but maintain a constant energy density relative to the background barotropic fluid.
NMR microscopic imaging of the single cell : Acetabularia mediterranea
Creators: name: Munasinghe, Jeeva Prasanna
Publisher: name: University of British Columbia
Year: 2010

description: NMR imaging studies performed in the microscopic realm using the cell organelles of the single celled marine green alga, Acetabularia mediterranea, are presented. The study had two main objectives. First, to attain microscopic spatial resolution. Second, to monitor development stages in the reproductive structure, the cap. The images of caps which are flat, oriented in the xy plane, have been obtained as 2-dimensional images. Using a 270 MHz spectrometer and an imaging probe made in this department, a lower resolution of 40-50 µm is reported. The probable causes for the limitation of resolution are discussed in terms of the molecular diffusion of the vacuolar water and the magnetic field inhomogeneity caused by the susceptibility differences at the interfaces of the sample and the sample holder on which the sample was mounted. Proton density images of immature, mature and partly mature caps are presented in order to portray the attainable resolution. Images obtained at higher gradients (~50 Gauss cm⁻¹) are presented and compared with those obtained at moderate gradients (~15 Gauss cm⁻¹). The necessity to perform the imaging sequence at a shorter time, in order to minimize molecular diffusion, is highlighted. T₁ contrast imaging experiments were performed to investigate the different maturation stages. The main attention is given to the partly mature caps, which have a mixture of mature and partly mature rays. Images obtained by T₁ contrasting, and the T₁values determined in a preliminary study, are discussed in relation to the probable changes in mobile and bound water during maturation. The variation of the T₁ values from long (immature) to short (partly mature) is explained in accordance with the ultrastructural development of the cap. Results of contrasting using T₂ values and paramagnetic ions (Mn²⁺) are presented briefly. Imaging of the rhizoid has been done, demonstrating the possibility of monitoring the large nucleus during maturation.
Room temperature superconductivity dome at a Fano resonance in superlattices of wires
Creators: name: Mazziotti, M. V.
name: Jarlborg, T.
name: Bianconi, A.
name: Valletta, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Recently room temperature superconductivity with Tc=15 degrees Celsius has been discovered in a pressurized complex ternary hydride, CSHx, which is a carbon doped H3S alloy. The nanoscale structure of H3S is a particular realization of the 1993 patent claim of superlattice of quantum wires for room temperature superconductors where the maximum Tc occurs at the top of a superconducting dome. Here we focus on the electronic structure of materials showing nanoscale heterostructures at atomic limit made of a superlattice of quantum wires like hole doped cuprate perovskites, organics, A15 intermetallics and pressurized hydrides. We provide a perspective of the theory of room temperature multigap superconductivity in heterogeneous materials tuned at a Fano Feshbach resonance (called also shape resonance) in the superconducting gaps focusing on H3S where the maximum Tc occurs where the pressure tunes the chemical pressure near a topological Lifshitz transition. Here the superconductivity dome of Tc versus pressure is driven by both electron-phonon coupling and contact exchange interaction. We show that the Tc amplification up to room temperature is driven by the Fano Feshbach resonance between a superconducting gap in the anti-adiabatic regime and other gaps in the adiabatic regime. In these cases the Tc amplification via contact exchange interaction is the missing term in conventional multiband BCS and anisotropic Migdal-Eliashberg theories including only Cooper pairing
description: 7 pages, 5 figures
On the deconfining limit in (2+1)-dimensional Yang-Mills theory
Creators: name: Abe, Yasuhiro
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider (2+1)-dimensional Yang-Mills theory on $S^1 \times S^1 \times {\bf R}$ in the framework of a Hamiltonian approach developed by Karabali, Kim and Nair. The deconfining limit in the theory can be discussed in terms of one of the $S^1$ radii of the torus ($S^1 \times S^1$), while the other radius goes to infinity. We find that the limit agrees with the previously known result for a dynamical propagator mass of a gluon. We also make comparisons with numerical data.
description: 21 pages; v2. lattice data references updated, comparative statements revised; v3. minor corrections; v4. section 6 extended, published version
Optimal control of centrifugal spreader
Creators: name: Rußwurm, Franz
name: Osinenko, Pavel
name: Streif, Stefan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: G.1.6; G.1.10
subject: 37M05, 93B45, 93C15

description: Achieving an evenly distributed fertilization spread pattern is a complex technical task. A corresponding control algorithm must account for the tractor movement, the settings of the spreader, the prescribed dosage as well as machine constraints. It dictates, in particular, the fertilization process needs be estimated ahead to achieve an optimized spread pattern. The presented work is concerned with the development of a predictive control scheme for optimized fertilizer application using modeling of the tractor moving on the field and the spread pattern in form of a crescent behind the tractor. In particular, the form of the spread pattern is modeled via four normal distributions, two for each side of the pattern. The control goal is to achieve a desired fertilizer distribution on the field. The study presents three algorithms for comparison: a one-step optimization and two approaches using model-predictive control, one with a simplified model of the spread pattern in the prediction horizon, and one with a comprehensive one model, respectively. The best results are obtained with model-predictive control using the comprehensive model.
description: 6 pages, 6 figures, IFAC World Congress
Valley relaxation of resident electrons and holes in a monolayer semiconductor: Dependence on carrier density and the role of substrate-induced disorder
Creators: name: Li, Jing
name: Goryca, M.
name: Yumigeta, K.
name: Li, H.
name: Tongay, S.
name: Crooker, S. A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Using time-resolved optical Kerr rotation, we measure the low temperature valley dynamics of resident electrons and holes in exfoliated WSe$_2$ monolayers as a systematic function of carrier density. In an effort to reconcile the many disparate timescales of carrier valley dynamics in monolayer semiconductors reported to date, we directly compare the doping-dependent valley relaxation in two electrostatically-gated WSe$_2$ monolayers having different dielectric environments. In a fully-encapsulated structure (hBN/WSe$_2$/hBN, where hBN is hexagonal boron nitride), valley relaxation is found to be monoexponential. The valley relaxation time $τ_v$ is quite long ($\sim$10~$μ$s) at low carrier densities, but decreases rapidly to less than 100~ns at high electron or hole densities $\gtrsim$2 $\times 10^{12}$~cm$^{-2}$. In contrast, in a partially-encapsulated WSe$_2$ monolayer placed directly on silicon dioxide (hBN/WSe$_2$/SiO$_2$), carrier valley relaxation is multi-exponential at low carrier densities. The difference is attributed to environmental disorder from the SiO$_2$ substrate. Unexpectedly, very small out-of-plane magnetic fields can increase $τ_v$, especially in the hBN/WSe$_2$/SiO$_2$ structure, suggesting that localized states induced by disorder can play an important role in depolarizing spins and mediating the valley relaxation of resident carriers in monolayer transition metal-dichalcogenide semiconductors.
description: 11 pages, 5 figures
title: Мой первый словарик (для детей-билингвов 1–4 классов)
Creators: name: ELS IPR BOOKS
Publisher: name: Ай Пи Ар Медиа
Year: 2021

description: Книга представляет собой учебный толковый словарь русского языка для детей-билингвов младшего школьного возраста (1–4 классы), который поможет повысить культуру письма и грамотности речи. В словарике дается толкование слов, которые входят в лексический минимум учеников младшей школы. Издание содержит примеры употребления лексических единиц и задания на их усвоение. Словарь рекомендуется учащимся младших классов, родителям и учителям.
First Run II Measurement of the W Boson Mass
Creators: name: CDF Collaboration
name: Aaltonen, T.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We describe a measurement of the W boson mass mW using 200/pb of root-s = 1.96 TeV p-pbar collision data taken with the CDF II detector. With a sample of 63,964 W -> e nu candidates and 51,128 W -> mu nu candidates, we measure mW = [80.413 +- 0.034 (stat) +- 0.034 (sys) = 80.413 +- 0.048] GeV/c^2. This is the single most precise mW measurement to date. When combined with other measured electroweak parameters, this result further constrains the properties of unobserved particles coupling to W and Z bosons.
description: Submitted to Phys. Rev. D
Multiplicative Bundle Gerbes with Connection
Creators: name: Waldorf, Konrad
Publisher: name: arXiv
Year: 2008
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 18G30, 58D05, 81T45

description: Multiplicative bundle gerbes are gerbes over a Lie group which are compatible with the group structure. In this article connections on such bundle gerbes are introduced and studied. It is shown that multiplicative bundle gerbes with connection furnish geometrical constructions of the following objects: smooth central extensions of loop groups, Chern-Simons actions for arbitrary gauge groups, and symmetric bi-branes for WZW models with topological defect lines.
description: 50 pages; v2: minor changes; v3: exposition improved, one convention in Definition 1.3 changed, accordant changes throughout the whole paper, many details added in Section 2, Section 3.1 is completely rewritten, all main results unchanged, v4: minor changes, final version. Differential Geom. Appl., to appear
title: The social (de-) construction of the Corona-pandemic as being a serious threat to society
title: Insights from a discourse analysis of German tweets until contacts were banned in March 2020
titleType: Subtitle
Creators: name: Deisner, Jana
name: Mai, Johanna
name: Auschra, Carolin
Publisher: name: Freie Universität Berlin
Year: 2021
Subjects: subject: Pandemic
subject: COVID-19
subject: social construction
subject: discourse analysis
subject: Twitter
subject: 600 Technik, Medizin, angewandte Wissenschaften::650 Management, Öffentlichkeitsarbeit::650 Management und unterstützende Tätigkeiten

description: This essay examines how different individual and collective actors interpreted the initial weeks of the worldwide COVID-19 outbreak from the German perspective. During this early phase, knowledge about COVID-19 was quite limited and uncertain, which also influenced the ability to assess (potential) impacts. The analysis relies on twitter data and traces the main arguments in the public German discourse between January and March 2020. It shows that actors ascribed different meanings to the outbreak – either recognizing or negating the gravity of the COVID-19 threat. Shortly before the first German lockdown, the seriousness of the COVID-19 threat had begun to feature prominently within the public discourse.
Soliton Oscillations and Revised Constraints from Eridanus II of Fuzzy Dark Matter
Creators: name: Chiang, Barry T.
name: Schive, Hsi-Yu
name: Chiueh, Tzihong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Fuzzy dark matter (FDM) has been a promising alternative to standard cold dark matter. The model consists of ultralight bosons with mass $m_b \sim 10^{-22}$ eV and features a quantum-pressure-supported solitonic core that oscillates. In this work, we show that the soliton density oscillations persist even after significant tidal stripping of the outer halo. We report two intrinsic yet distinct timescales associated, respectively, with the ground-state soliton wavefunction $τ_{00}$ and the soliton density oscillations $τ_\text{soliton}$, obeying $τ_\text{soliton} /τ_{00} \simeq 2.3$. The central star cluster (SC) in Eridanus II has a characteristic timescale $τ_\text{soliton} / τ_\text{SC} \sim 2$ to $3$ that deviates substantially from unity. As a result, we demonstrate, both analytically and numerically with three-dimensional self-consistent FDM simulations, that the gravitational heating of the SC owing to soliton density oscillations is negligible irrespective of $m_b$. We also show that the subhalo mass function to form Eridanus II does not place a strong constraint on $m_b$. These results are contrary to the previous findings by Marsh & Niemeyer (2019).
description: 19 pages, 19 figures; Accepted for publication in PRD