cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Araucaria Project. The Distance to the Local Group Galaxy WLM from Near-Infrared Photometry of Cepheid Variables
Creators: name: Gieren, W.
name: Pietrzynski, G.
name: Szewczyk, O.
name: Bresolin, F.
name: Kudritzki, R. -P.
name: Urbaneja, M. A.
name: Storm, J.
name: Minniti, D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have obtained deep images in the near-infrared J and K filters for several fields in the Local Group galaxy WLM. We report intensity mean magnitudes for 31 Cepheids located in these fields which we previously discovered in a wide-field optical imaging survey of WLM. The data define tight period-luminosity relations in both near-infrared bands which we use to derive the total reddening of the Cepheids in WLM and the true distance modulus of the galaxy from a multiwavelength analysis of the reddened distance moduli in the VIJK bands. From this, we obtain the values E(B-V) = 0.082 $\pm$ 0.02, and $(m-M)_{0} = 24.924 \pm 0.042$ mag, with a systematic uncertainty in the distance of about $\pm$ 3%. This Cepheid distance agrees extremely well with the distance of WLM determined from the I-band TRGB method by ourselves and others. Most of the reddening of the Cepheids in WLM (0.06 mag) is produced inside the galaxy, demonstrating again the need for an accurate determination of the total reddening and/or the use of infrared photometry to derive Cepheid distances which are accurate to 3% or better, even for small irregular galaxies like WLM.
description: latex, 6 figures. accepted to ApJ
Feedback Heating by Cosmic Rays in Clusters of Galaxies
Creators: name: Guo, Fulai
name: OH, S. Peng
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recent observations show that the cooling flows in the central regions of galaxy clusters are highly suppressed. Observed AGN-induced cavities/bubbles are a leading candidate for suppressing cooling, usually via some form of mechanical heating. At the same time, observed X-ray cavities and synchrotron emission point toward a significant non-thermal particle population. Previous studies have focused on the dynamical effects of cosmic-ray pressure support, but none have built successful models in which cosmic-ray heating is significant. Here we investigate a new model of AGN heating, in which the intracluster medium is efficiently heated by cosmic-rays, which are injected into the ICM through diffusion or the shredding of the bubbles by Rayleigh-Taylor or Kelvin-Helmholtz instabilities. We include thermal conduction as well. Using numerical simulations, we show that the cooling catastrophe is efficiently suppressed. The cluster quickly relaxes to a quasi-equilibrium state with a highly reduced accretion rate and temperature and density profiles which match observations. Unlike the conduction-only case, no fine-tuning of the Spitzer conduction suppression factor f is needed. The cosmic ray pressure, P_c/P_g
description: Revised version accepted for publication in MNRAS. Significantly expanded discussion and new simulations exploring parameter space/model robustness; conclusions unchanged
Jet propagation through inhomogeneous media and shock ionization
Creators: name: Perucho, Manel
name: López-Miralles, José
name: Reynaldi, Victoria
name: Labiano, Álvaro
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In this contribution we present the first numerical simulations of a relativistic outflow propagating through the inner hundreds of parsecs of its host galaxy, including atomic and ionised hydrogen, and the cooling effects of ionisation. Our results are preliminary, but we observe efficient shock ionization of atomic hydrogen in interstellar clouds. The mean density of the interstellar medium in these initial simulations is lower than that expected in typical galaxies, which makes cooling times longer and thus no recombination is observed inside the shocked region. The velocities achieved by the shocked gas in the simulations are in agreement with observational results, although with a wide spectrum of values.
description: To be published in the proceedings of the 6th GPS/CSS symposium, held in May 2021. Astronomische Nachrichten
Cirquent calculus deepened
Creators: name: Japaridze, Giorgi
Publisher: name: arXiv
Year: 2007
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Logic (math.LO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: F.4.1

description: Cirquent calculus is a new proof-theoretic and semantic framework, whose main distinguishing feature is being based on circuits, as opposed to the more traditional approaches that deal with tree-like objects such as formulas or sequents. Among its advantages are greater efficiency, flexibility and expressiveness. This paper presents a detailed elaboration of a deep-inference cirquent logic, which is naturally and inherently resource conscious. It shows that classical logic, both syntactically and semantically, is just a special, conservative fragment of this more general and, in a sense, more basic logic -- the logic of resources in the form of cirquent calculus. The reader will find various arguments in favor of switching to the new framework, such as arguments showing the insufficiency of the expressive power of linear logic or other formula-based approaches to developing resource logics, exponential improvements over the traditional approaches in both representational and proof complexities offered by cirquent calculus, and more. Among the main purposes of this paper is to provide an introductory-style starting point for what, as the author wishes to hope, might have a chance to become a new line of research in proof theory -- a proof theory based on circuits instead of formulas.
description: Significant improvements over the previous versions
A Complete Catalog of Swift GRB Spectra and Durations: Demise of a Physical Origin for Pre-Swift High-Energy Correlations
Creators: name: Butler, Nathaniel R.
name: Kocevski, Daniel
name: Bloom, Joshua S.
name: Curtis, Jason L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We calculate durations and spectral paramaters for 218 Swift bursts detected by the BAT instrument between and including GRBs 041220 and 070509, including 77 events with measured redshifts. Incorporating prior knowledge into the spectral fits, we are able to measure the characteristic $νF_ν$ spectral peak energy $E_{\rm pk,obs}$ and the isotropic equivalent energy $E_{\rm iso}$ (1--$10^4$ keV) for all events. This complete and rather extensive catalog, analyzed with a unified methodology, allows us to address the persistence and origin of high-energy correlations suggested in pre-Swift observations. We find that the $E_{\rm pk,obs}$-$E_{\rm iso}$ correlation is present in the Swift sample; however, the best-fit powerlaw relation is inconsistent with the best-fit pre-Swift relation at >5 sigma significance. Moreover, it has a factor >~ 2 larger intrinsic scatter, after accounting for large errors on $E_{\rm pk,obs}$. A large fraction of the Swift events are hard and subluminous relative to (and inconsistent with) the pre-Swift relation, in agreement with indications from BATSE GRBs without redshift. Moreover, we determine an experimental threshold for the BAT detector and show how the $E_{\rm pk,obs}$--$E_{\rm iso}$ correlation arises artificially due to partial correlation with the threshold. We show that pre-Swift correlations found by Amati et al.(2002), Yonetoku et al. (2004), Firmani et al.(2006) (and independently by others) are likely unrelated to the physical properties of GRBs and are likely useless for tests of cosmology. Also, an explanation of these correlations in terms of a detector threshold provides a natural and quantitative explanation for why short-duration GRBs and events at low redshift tend to be outliers to the correlations.
description: 25 pages, 9 figures, 2 tables, Accepted to ApJ
The effect of electrical stimulation and isokinetic exercise on muscular power of the quadriceps
Creators: name: Nobbs, Leslie Ann
Publisher: name: University of British Columbia
Year: 2010

description: Power and strength training, using conventional techniques, has been studied by several researchers. Investigations into the use of different training methods and their effect on power and strength development are continually being studied and re-assessed. Recently, the use of faradic or electrical stimulation has become an interesting alternative method, although much controversy surrounds this technique. It has been reported by Johnson et al. (1977) and Kots (1977) that faradic stimulation is used with success as part of a strengthening program by elite Soviet athletes. The combined effects of a program consisting of exercise as well as electrical stimulation was undertaken to determine the muscular power and strength potentials. The main objective of this study was to compare power and strength changes between equated groups employing the following training techniques: electrical stimulation plus isokinetic exercise, isokinetic exercise and electrical stimulation, respectively. Twenty-seven, moderately trained, female subjects, nine per group, were tested on three separate occasions. During the first session, height, weight, left and right quadriceps power evaluation, time to peak tension of the muscle contraction at the four velocities :(30, 100, 180 and 0 degrees per second) and two thigh girth measurements were determined. The three groups were equated for power after the pretest was conducted. The second and third testing sessions assessed the power and time to peak tension of the non-dominant leg at the four velocities and patellar and gluteal thigh girths. A significant difference for power was found between the pre and post tests and the pre and mid tests for the combined groups during the six week period of training. Although no difference was found between each of the three groups, the results indicated that programs involving electrical stimulation and isokinetic exercise, isokinetic exercise and electrical stimulation only, are potentially effective in improving muscular power and strength in normal subjects. The study revealed that one method was not superior to another after six weeks of training. There was significant power differences between the pre and post tests and pre and mid tests at the slow isokinetic speeds of 30° and 0° per second. Since the training was conducted at the speeds of 30° and 0° (isometric) per second, the slow testing speeds reflected neural adaptation and muscular recruitment when the specificity of training theory is considered. These findings imply that power and strength training benefits are limited to speeds used during training. During the six week training period, time to peak maximal torque and hypertrophy of the quadriceps muscle group did not alter significantly when examining the means of all three groups.
Relationship between vibrations and dynamical heterogeneity in a model glass former: extended soft modes but local relaxation
Creators: name: Ashton, Douglas J.
name: Garrahan, Juan P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the relation between short-time vibrational modes and long-time relaxational dynamics in a kinetically constrained lattice gas with harmonic interactions between neighbouring particles. We find a correlation between the location of the low (high) frequency vibrational modes and regions of high (low) propensity for motion. This is similar to what was observed in continuous force systems, but our interpretation is different: in our case relaxation is due to localised excitations which propagate through the system; these localised excitations act as background disorder for the elastic network, giving rise to anomalous vibrational modes. Our results show that a correlation between spatially extended low frequency modes and high propensity regions does not imply that relaxational dynamics originates in extended soft modes. We consider other measures of elastic heterogeneity, such as non-affine displacement fields and mode localisation lengths, and discuss implications of our results to interpretations of dynamic heterogeneity more generally.
description: 5 pages, 5 figures
К ПРОБЛЕМЕ ПРОИЗВОДСТВА ПОЛНОЦЕННОГО ЗЕРНОФУРАЖА
Creators: name: Шибеко Александр Эдмундович
name: Шестаков Юрий Николаевич
name: Сельманович Вячеслав Лукич
Publisher: name: Эпоха науки
Year: 2020
Subjects: корма
зернофураж
сбор белка
одновидовые и смешанные посевы
качество корма
протеин

description: в статье приведены данные исследования по подбору кормовых зерновых и зернобобовых фуражных культур для производства высококачественного, сбалансированного по белку зернофуража.
ИСПОЛЬЗОВАНИЕ МИНЕРАЛИЗОВАННЫХ ПРОТИВОПОЖАРНЫХ ПОЛОС
Creators: name: Книга Юрий Анатольевич
name: Берсенёва Мария Леонидовна
Publisher: name: Эпоха науки
Year: 2020
Subjects: природный пожар
фронт пламени
распространение
роза ветров
населённый пункт
промышленный объект
минерализованная полоса
Ачинский филиал

description: рассмотрены основные аспекты прокладки и использования минерализованных противопожарных для защиты населённых пунктов и промышленных объектов от распространяющихся природных пожаров. Предложены мероприятия по использованию пожарозащитных полос в учебном хозяйстве Ачинского филиала Красноярского государственного аграрного университета.
К ВЫБОРУ МАТЕРИАЛОВ ТЕПЛОИЗОЛЯЦИИ ДЛЯ УСЛОВИЙ НЕСТАЦИОНАРНОГО ТЕПЛООБМЕНА
Creators: name: Лукьянченко Александр Михайлович
name: Ульянцев Юрий Николаевич
name: Вендин Сергей Владимирович
Publisher: name: Эпоха науки
Year: 2020
Subjects: Теплоизоляция
нестационарные условия
теплообмен

description: В статье рассмотрены вопросы применимости различных теплоизоляционных материалов для условий нестационарной теплопередачи. При нестационарной теплопередаче имеющей место при резкой смене внешних температур на поверхности объекта (стенки), а также при обеспечении технологических режимов протекания процессов связанных с нагревом (охлаждением) продукта, скорость протекания процессов определяется величиной коэффициента температуропроводности. Поэтому при выборе материала теплоизоляции для условий нестационарных тепловых процессов необходимо, в первую очередь, учитывать его коэффициент температуропроводности. Согласно полученным результатам, можно заключить, что наименьшая температуропроводность у таких материалов, как дерево и композитные материалы на основе дерева, а из искусственных материалов ближе к ним можно отнести пенополиуретан. Таким образом, для условий нестационарного теплообмена для ограждающих конструкций, а также для конструкционных элементов установок с позиций теплоизоляции эти материалы подходят лучше всего.
A OTAN E A RELAÇÃO COM ÁFRICA: UMA REFLEXÃO SOBRE A COOPERAÇÃO ESTRATÉGICA DE PORTUGAL COM ANGOLA
Creators: name: Nádia T. Dos Santos Loureiro & António J. T. Correia
Publisher: name: PROELIUM
Year: 2025

description: Portugal é um dos países fundadores da Aliança Atlântica e tem desempenhado um papel relevante ao participar ativamente em várias operações e missões. Considerado um Estado pequeno, o país rapidamente percebeu as suas valências ao nível geoestratégico, potenciando-as nas suas relações diplomáticas com os Estados lusófonos fora da Aliança. Um exemplo é a Cooperação no Domínio da Defesa (CDD) sob a égide do Ministério da Defesa Nacional (MDN), cuja maior expressão se verifica nos países de língua oficial portuguesa.


Assim, no ano em que se celebra o 76º aniversário da OTAN, o presente ensaio tem como objetivo analisar a CDD entre Portugal e Angola, estabelecida em 1996 e compreender até que ponto esta cooperação reforça o papel de Portugal na OTAN, na promoção dos valores da Aliança Atlântica, como a não agressão, neste particular incidindo na problemática da não proliferação nuclear, fora da sua área de influência, no caso em apreço, num país africano.
description: PROELIUM, Vol. 8 N.º 15 (2025): Revista Proelium, VIII, 15
Imaging of granular sources in high energy heavy ion collisions
Creators: name: Yang, Zhi-Tao
name: Zhang, Wei-Ning
name: Huo, Lei
name: Zhang, Jing-Bo
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the source imaging for a granular pion-emitting source model in high energy heavy ion collisions. The two-pion source functions of the granular sources exhibit a two-tiered structure. Using a parametrized formula of granular two-pion source function, we examine the two-tiered structure of the source functions for the imaging data of Au+Au collisions at Alternating Gradient Synchrotron (AGS) and Relativistic Heavy Ion Collider (RHIC). We find that the imaging technique introduced by Brown and Danielewicz is suitable for probing the granular structure of the sources. Our data-fitting results indicate that there is not visible granularity for the sources at AGS energies. However, the data for the RHIC collisions with the selections of $40 < {\rm centrality} < 90%$ and $0.20
description: 14 pages, 6 figures
АНАЛИЗ КОНСТРУКЦИИ ДЕТАЛИ «ЧЕРВЯК»
Creators: name: Кеняйкин Дмитрий Сергеевич
name: Ефанов Сергей Александрович
Publisher: name: Эпоха науки
Year: 2020
Subjects: конечно-элементный анализ
напряженно-деформированное состояние
SOLIDWORKS Simulation

description: В статье приводится статический анализ конструкции детали. В качестве метода анализа используется метод конечных элементов, а в качестве среды моделирования SOLIDWORKS Simulation. 3D модель червяка реализована в виде детали адаптированной к конечно элементному анализу. Разработаны граничные условия по перемещениям обеспечивающие вычислительную эффективность, а также адекватность получаемых решений. Результаты анализа напряженно-деформированного состояния представлены в наглядной форме, пригодной для оценки.
Nucleosynthetic Pt isotope anomalies and the Hf-W chronology of core formation in inner and outer solar system planetesimals
Creators: name: Spitzer, Fridolin
name: Burkhardt, Christoph
name: Nimmo, Francis
name: Kleine, Thorsten
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: The 182Hf-182W chronology of iron meteorites provides crucial information on the timescales of accretion and differentiation of some of the oldest planetesimals of the Solar System. Determining accurate Hf-W model ages of iron meteorites requires correction for cosmic ray expo-sure (CRE) induced modifications of W isotope compositions, which can be achieved using in-situ neutron dosimeters such as Pt isotopes. Until now it has been assumed that all Pt isotope variations in meteorites reflect CRE, but here we show that some ungrouped iron meteorites display small nucleosynthetic Pt isotope anomalies. These provide the most appropriate starting composition for the correction of CRE-induced W isotope variations in iron meteorites from all major chemical groups, which leads to a ~1 Ma upward revision of previously reported Hf-W model ages. The revised ages indicate that core formation in non-carbonaceous (NC) iron meteorite parent bodies occurred at ~1-2 Ma after CAI formation, whereas most carbonaceous (CC) iron meteorite parent bodies underwent core formation ~2 Ma later. We show that the younger CC cores have lower Fe/Ni ratios than the earlier-formed NC cores, indicating that core formation under more oxidizing conditions occurred over a more protracted timescale. Thermal modeling of planetesimals heated by 26Al-decay reveals that this protracted core formation timescale is consistent with a higher fraction of water ice in CC compared to NC planetesimals, implying that in spite of distinct core formation timescales, NC and CC iron meteorite parent bodies accreted about contemporaneously within ~1 Ma after CAI formation, but at different radial locations in the disk.
description: Accepted for publication in Earth and Planetary Science Letters
ЭФФЕКТИВНОСТЬ ИСПОЛЬЗОВАНИЯ ЭНЕРГЕТИЧЕСКИХ РЕСУРСОВ В АЧИНСКОМ ФИЛИАЛЕ ФГБОУ ВО КРАСНОЯРСКИЙ ГАУ
Creators: name: Макеева Юлия Николаевна
name: Пиляева Ольга Владимировна
name: Книга Юрий Анатольевич
Publisher: name: Эпоха науки
Year: 2020
Subjects: мониторинг
теплопотери
энергоэффективность
тепловой расчет
ограждающие конструкции

description: представлены результаты энергетического аудита Ачинского филиала ФГБОУ ВО Красноярский ГАУ, произведены расчёты тепловых потерь ограждающих конструкций эксплуатируемых зданий, предложены мероприятия по повышению энергоэффективности предприятия.
ВЛИЯНИЕ РЕЖИМА ОБКАТКИ НА ПОКАЗАТЕЛИ РАБОТЫ ДВИГАТЕЛЕЙ
Creators: name: Королев Александр Егорович
Publisher: name: Эпоха науки
Year: 2020
Subjects: двигатель
ремонт
обкатка
испытание
технические показатели
распределение и закономерности

description: В статье анализируется процесс обкатки двигателей на ремонтном предприятии. Технология обкатки в значительной степени определяет надёжность двигателей. Работоспособность двигателей характеризуется допустимыми значениями их выходных параметров. Проведены производственные испытания дизелей ЯМЗ-238НБ на трёх режимах различной продолжительности. Показан диапазон рассеивания технических показателей относительно нормативных значений, установленным требованиям соответствуют 64…72% двигателей. Определена корреляционная взаимосвязь между изучаемыми параметрами. Выявлены закономерности изменения выходных показателей качества приработки двигателей. Установлено влияние режима обкатки на качественные показатели объектов исследования, по значимости факторы распределились следующим образом: время 0,72, нагрузка 0,15, скорость 0,13. Рекомендовано увеличить продолжительность испытания дизелей в 1,5 раза.
Collinear ordering of easy-axis triangular lattice antiferromagnets
Creators: name: Sen, Arnab
name: Wang, Fa
name: Damle, Kedar
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Antiferromagnetically coupled moments on the frustrated triangular lattice typically order in a coplanar state at low temperature. Here, we demonstrate that the presence of not-very-large easy axis single ion anisotropy leads to an interesting orientationally ordered collinear state in triangular lattice antiferromagnets with moments $S \ge 3/2$. This ordered state breaks the symmetry of $π/3$ rotations about a lattice site, while leaving intact the translational symmetry of the lattice.
description: 4 pages, 2-column format, 3 .eps figures
Bayesian Inference in Astrophysics: Applications to Gravitational-Wave Memory and Quasi-Periodic Oscillations
Creators: name: HUEBNER, MORITZ THOMAS
Publisher: name: Monash University
Year: 2021
Subjects: subject: 20105 General Relativity and Gravitational Waves
subject: FOS: Physical sciences
subject: 20106 High Energy Astrophysics; Cosmic Rays
subject: Astrophysics
subject: 140305 Time-Series Analysis
subject: FOS: Economics and business

description: In this thesis, I explore how Bayesian inference, a key statistical technique in astrophysics, can be used to analyse some of the most energetic phenomena. First, I show that we can use inference to find small deviations in the models of gravitational waves, specifically the gravitational-wave memory effect. Gravitational waves are sourced in the collision of black holes and finding the memory effect is an important test of prevalent theories. I also show that inference is a useful tool to develop and evaluate models for x-ray signals, specifically to search for oscillatory behaviour.
Properties of X-ray selected Broad Absorption Line Quasars
Creators: name: Blustin, A. J.
name: Dwelly, T.
name: Page, M. J.
name: McHardy, I. M.
name: Seymour, N.
name: Kennea, J. A.
name: Loaring, N. S.
name: Mason, K. O.
name: Sekiguchi, K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Broad absorption line quasars (commonly termed BALQSOs) contain the most dramatic examples of AGN-driven winds. The high absorbing columns in these winds, ~10^24 cm^-2, ensure that BALQSOs are generally X-ray faint. This high X-ray absorption means that almost all BALQSOs have been discovered through optical surveys, and so what little we know about their X-ray properties is derived from very bright optically-selected sources. A small number of X-ray selected BALQSOs (XBALQSOs) have, however, recently been found in deep X-ray survey fields. In this paper we investigate the X-ray and rest-frame UV properties of five XBALQSOs for which we have obtained XMM-Newton EPIC X-ray spectra and deep optical imaging and spectroscopy. We find that, although the XBALQSOs have an alpha_ox steeper by ~0.5 than normal QSOs, their median alpha_ox is nevertheless flatter by 0.30 than that of a comparable sample of optically selected BALQSOs (OBALQSOs). We rule out the possibility that the higher X-ray to optical flux ratio is due to intrinsic optical extinction. We find that the amount of X-ray and UV absorption due to the wind in XBALQSOs is similar, or perhaps greater than, the corresponding wind absorption in OBALQSOs, so the flatter alpha_ox cannot be a result of weaker wind absorption. We conclude that these XBALQSOs have intrinsically higher X-ray to optical flux ratios than the OBALQSO sample with which we compare them.
description: 13 pages, 8 figures, accepted for publication in MNRAS
Bottomed Analog of Z+(4433)
Creators: name: Cheung, Kingman
name: Keung, Wai-Yee
name: Yuan, Tzu-Chiang
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The newly observed $Z^+ (4433)$ resonance by BELLE is believed to be a tetraquark bound state made up of $(cu)(\bar c \bar d)$. We propose the bottomed analog of this bound state, namely, by replacing one of the charm quarks by a bottom quark, thus forming $Z_{bc}^{0, \pm, \pm\pm}$. One of the $Z_{bc}$ is doubly charged. The predicted mass of $Z_{bc}$ is around 7.6 GeV. This doubly-charged bound state can be detected by its decay into $B_c^\pm π^\pm$. Similarly, we can also replace both charm quark and antiquark of the $Z^+ (4433)$ by bottom quark and antiquark, respectively, thus forming $Z_{bb}$ the bottomonium analog of $Z^+ (4433)$. The predicted mass of $Z_{bb}$ is about 10.7 GeV.
description: 5 pages
Disjointness of representations arising in harmonic analysis on the infinite-dimensional unitary group
Creators: name: Gorin, Vadim
Publisher: name: arXiv
Year: 2008
Subjects: subject: Representation Theory (math.RT)
subject: Combinatorics (math.CO)
subject: Probability (math.PR)
subject: FOS: Mathematics

description: We prove pairwise disjointness of representations T_{z,w} of the infinite-dimensional unitary group. These representations provide a natural generalization of the regular representation for the case of "big" group U(\infty). They were introduced and studied by G.Olshanski and A.Borodin. Disjointness of the representations can be reduced to disjointness of certain probability measures on the space of paths in the Gelfand-Tsetlin graph. We prove the latter disjointness using probabilistic and combinatorial methods.
description: 22 pages; some references added, introduction revised, minor changes in text
title: Automatic Compiler Support for Application-Specific Instruction Set Architecture Extensions
Creators: name: Halkenhäuser, Michael
Publisher: name: UNSPECIFIED
Year: 2022

description: High demand for computational power over the last decades has led to the widespread presence of processors in our everyday lives. Simultaneous growth in the number of application areas requires specialized hardware, tailored for specific tasks. These application-specific processors are of key importance, since their limitation to a few possible operations offers distinct advantages. Such hardware-accelerators are generally able to outperform any common processor with regard to some metrics. The most frequent ones being computational speed or power consumption. With availability of the RISC-V open-standard processor architecture, development of customized processors becomes even more interesting. It allows the creation and implementation of instructions tailored to one's own prerequisites, generally without requiring licensing fees. Once these instructions are defined and an actual processor implementation is available, developers are faced with the lack of proper support by compilers. This in turn complicates the instructions' utilization considerably, requiring distinct knowledge of their actual binary representation or manual implementation of support. Both options are time consuming and demanding with regard to the assumed proficiency. Therefore, we want to suggest an automated approach to the implementation of compiler support for these Instruction Set Architecture (ISA) eXtensions (ISAXs). Our presented infrastructure will be utilizing and operating on LLVM, an open-source compiler framework and automatically add support for certain instruction types. In this work, we will provide an introduction to automated source code customization with regard to the LLVM sub-project LibTooling and present the performed modifications in detail. Furthermore, we will introduce an input format based on LLVM's Intermediate Representation (IR) and show how certain instruction properties may be automatically determined. The last step of our approach will present the application of this information in order to ultimately enable compiler support. Afterwards, we will evaluate our approach with regard to reduced development effort and requirements. Lastly, we will summarize our work and conclude with the presentation of possible next steps with regard to the extension of our presented infrastructure.
Superstring and Superstring Field Theory: a new solution using Ultradistributions of Exponential Type
Creators: name: Bollini, C. G.
name: Rocca, M. C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we show that Ultradistributions of Exponential Type (UET) are appropriate for the description in a consistent way superstring and superstring field theories. A new Lagrangian for the closed superstring is given. We show that the superstring field is a linear superposition of UET of compact support, and give the notion of anti-superstring. We evaluate the propagator for the superstring field, and calculate the convolution of two of them.
description: 33 pages, no figures
The wedding of modified dynamics and non-exotic dark matter in galaxy clusters
Creators: name: Famaey, B.
name: Angus, G. W.
name: Gentile, G.
name: Shan, H. Y.
name: Zhao, H. S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We summarize the status of Modified Newtonian Dynamics (MOND) in galaxy clusters. The observed acceleration is typically larger than the acceleration threshold of MOND in the central regions, implying that some dark matter is necessary to explain the mass discrepancy there. A plausible resolution of this issue is that the unseen mass in MOND is in the form of ordinary neutrinos with masses just below the experimentally detectable limit. In particular, we show that the lensing mass reconstructions of the clusters 1E0657-56 (the bullet cluster) and Cl0024+17 (the ring) do not pose a new challenge to this scenario. However, the mass discrepancy for cool X-ray emitting groups, in which neutrinos cannot cluster, pose a more serious problem, meaning that dark baryons could present a more satisfactory solution to the problem of unseen mass in MOND clusters.
description: to appear in World Scientific, proceedings of DARK 2007
ВОЗОБНОВЛЯЕМАЯ ЭНЕРГЕТИКА В ДЕЦЕНТРАЛИЗОВАННОМ ЭЛЕКТРОСНАБЖЕНИИ
Creators: name: Пиляева Ольга Владимировна
Publisher: name: Эпоха науки
Year: 2020
Subjects: солнечная энергия
электроэнергия
энергетическая установка
сельский потребитель
солнечная радиация

description: Главной чертой, характеризующей практическое использование солнечной энергии, является высокая стоимость получаемой тепловой и электрической энергии по сравнению с традиционными источниками. В статье рассмотрен вопрос использования солнечной энергии в северных районах Красноярского края.
ПРОБЛЕМА ПЛАНИРОВАНИЯ ЗАНЯТИЙ ПО ОГНЕВОЙ ПОДГОТОВКЕ
Creators: name: Плешков Александр Владимирович
name: Коряковцев Дмитрий Александрович
name: Благодатин Анатолий Борисович
Publisher: name: Эпоха науки
Year: 2020
Subjects: огневая подготовка
занятие
проблема
МВД
навыки
оружие

description: абсолютно всем известно, что для обучения чему-то необходимо выделять этому новому делу должное количество времени, стараний, внимания. А если говорить о формировании навыка, умения, то здесь играет роль не только сколько времени Вы потратили на это дело, но и способ организации Вашего времени.
Super Schrodinger algebra in AdS/CFT
Creators: name: Sakaguchi, Makoto
name: Yoshida, Kentaroh
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss (extended) super Schrodinger algebras obtained as subalgebras of the superconformal algebra psu(2,2|4). The Schrodinger algebra with two spatial dimensions can be embedded into so(4,2). In the superconformal case the embedded algebra may be enhanced to the so-called super Schrodinger algebra. In fact, we find an extended super Schrodinger subalgebra of psu(2,2|4). It contains 24 supercharges (i.e., 3/4 of the original supersymmetries) and the generators of so(6), as well as the generators of the original Schrodinger algebra. In particular, the 24 supercharges come from 16 rigid supersymmetries and half of 16 superconformal ones. Moreover, this superalgebra contains a smaller super Schrodinger subalgebra, which is a supersymmetric extension of the original Schrodinger algebra and so(6) by eight supercharges (half of 16 rigid supersymmetries). It is still a subalgebra even if there are no so(6) generators. We also discuss super Schrodinger subalgebras of the superconformal algebras, osp(8|4) and osp(8^*|4).
description: 19pp; references added and title changed. version to appear in J. Math. Phys
ДОСТОИНСТВА И НЕДОСТАТКИ ПИСТОЛЕТА МАКАРОВА
Creators: name: Плешков Александр Владимирович
name: Коряковцев Дмитрий Александрович
name: Благодатин Анатолий Борисович
Publisher: name: Эпоха науки
Year: 2020
Subjects: Пистолет Макарова
оружие
надежность
силовые структуры

description: Статья посвящена непосредственному анализу основных достоинств и недостатков пистолета Макарова. Во время написания научной статьи был сделан вывод, что данный пистоле является достойным представителем российского оружейного рынка и имеет малое количество недостатков
TECNOLOGIAS DISRUPTIVAS EM SEGURANÇA E DEFESA: O EMPREGO DE UAVS NA ARTILHARIA – PERSPETIVAS FUTURAS
Creators: name: Guilherme D. Codeço S. Campos, Bruno M. G. L. Martinho
Publisher: name: PROELIUM
Year: 2025

description: Face ao fenómeno do crescimento e emprego exponencial dos Unmanned Aerial Vehicles nas operações militares, este artigo pretende, através da construção de um estudo de caso, analisar, qualitativamente, o emprego desta tipologia de aeronaves no âmbito das operações militares, circunscrevendo-as às que se enquadram no âmbito da Artilharia de Campanha, destacando as possibilidades dos Unmanned Aerial Vehicles nas operações militares na sua generalidade, e, posteriormente, para o meios de apoio de fogo. A investigação corrente, analisa as limitações às quais estas aeronaves podem estar associadas, realizando um levantamento das tecnologias e tipos de Unmanned Aerial Vehicles empregues atualmente, especificando a pesquisa ao conflito russo-ucraniano, analisando as características que tornam os Unmanned Aerial Vehicles adequados para o apoio às missões de Artilharia.


Analisando os resultados da investigação são destacadas distintas potencialidades e capacidades dos Unmanned Aerial Vehicles para a Artilharia de Campanha, sendo essas, reconhecimento completo das posições de Artilharia, regulação de fogos com uma precisão superior, observação de objetivos e áreas de interesse, apoio no processo de tomada de decisão, substituição de militares em missões de alta perigosidade e contributo para o processo do targeting. Estas possibilidades tornam os Unmanned Aerial Vehicles uma ferramenta promissora e complementar no contexto das operações de Artilharia de Campanha.
description: PROELIUM, Vol. 8 N.º 15 (2025): Revista Proelium, VIII, 15
ПРИМЕНЕНИЕ ОГНЕСТРЕЛЬНОГО ОРУЖИЯ СОТРУДНИКОМ ПОЛИЦИ
Creators: name: Якимов Сергей Сергеевич
name: Зубрилкин Сергей Дмитриевич
name: Гурылев Владимир Иванович
Publisher: name: Эпоха науки
Year: 2020
Subjects: сотрудник полиции
оружие
применение
закон
служба

description: в данной статье рассмотрена тема применения огнестрельного оружия сотрудником полиции. Сотрудник полиции всегда обязан помнить и чтить все законы, тем более в своей деятельности. И должен правильно уметь обращаться с оружием.
Embedding operators into strongly continuous semigroups
Creators: name: Eisner, Tanja
Publisher: name: arXiv
Year: 2008
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 47D06, 47A05

description: We study linear operators $T$ on Banach spaces for which there exists a $C_0$-semigroup $(T(t))_{t\geq 0}$ such that $T=T(1)$. We present a necessary condition in terms of the spectral value 0 and give classes of examples where this can or cannot be achieved.
description: 7 pages
МЕСТО ОГНЕВОЙ ПОДГОТОВКИ В ФОРМИРОВАНИИ ЛИЧНОСТИ МОЛОДОГО СОТРУДНИКА ОВД
Creators: name: Якимов Сергей Сергеевич
name: Зубрилкин Сергей Дмитриевич
name: Гурылев Владимир Иванович
Publisher: name: Эпоха науки
Year: 2020
Subjects: огневая подготовка
оперативно-служебные действия
сотрудники ОВД

description: в статье определено место огневой подготовки в формировании личности молодого сотрудника ОВД. Дано понятие процесса целенаправленного формирования личности молодого сотрудника ОВД средствами огневой подготовки. Утверждается, что в процессе огневой подготовки у молодых сотрудников ОВД происходит формирование научного мировоззрения и психологической устойчивости к экстремальным ситуациям (условиям).
Signatures of muonic activation in the Majorana Demonstrator
Creators: name: Arnquist, I. J.
name: Avignone, F. T.
name: Barabash, A. S.
name: Barton, C. J.
name: Bertrand, F. E.
name: Blalock, E.
name: Bos, B.
name: Busch, M.
name: Buuck, M.
name: Caldwell, T. S.
name: Chan, Y-D.
name: Christofferson, C. D.
name: Chu, P. -H.
name: Clark, M. L.
name: Cuesta, C.
name: Detwiler, J. A.
name: Edwards, T. R.
name: Efremenko, Yu.
name: Ejiri, H.
name: Elliott, S. R.
name: Giovanetti, G. K.
name: Green, M. P.
name: Gruszko, J.
name: Guinn, I. S.
name: Guiseppe, V. E.
name: Haufe, C. R.
name: Henning, R.
name: Aguilar, D. Hervas
name: Hoppe, E. W.
name: Hostiuc, A.
name: Kidd, M. F.
name: Kim, I.
name: Kouzes, R. T.
name: Lannen, T. E.
name: Lopez, A. M.
name: López-Castaño, J. M.
name: Martin, E. L.
name: Martin, R. D.
name: Massarczyk, R.
name: Meijer, S. J.
name: Mertens, S.
name: Oli, T. K.
name: Othman, G.
name: Paudel, L. S.
name: Pettus, W.
name: Poon, A. W. P.
name: Radford, D. C.
name: Reine, A. L.
name: Rielage, K.
name: Ruof, N. W.
name: Tedeschi, D.
name: Varner, R. L.
name: Vasilyev, S.
name: Wilkerson, J. F.
name: Wiseman, C.
name: Xu, W.
name: Yu, C. -H.
name: Zhu, B. X.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Experiments searching for very rare processes such as neutrinoless double-beta decay require a detailed understanding of all sources of background. Signals from radioactive impurities present in construction and detector materials can be suppressed using a number of well-understood techniques. Background from in-situ cosmogenic interactions can be reduced by siting an experiment deep underground. However, the next generation of such experiments have unprecedented sensitivity goals of 10$^{28}$ years half-life with background rates of 10$^{-5}$cts/(keV kg yr) in the region of interest. To achieve these goals, the remaining cosmogenic background must be well understood. In the work presented here, Majorana Demonstrator data is used to search for decay signatures of meta-stable germanium isotopes. Contributions to the region of interest in energy and time are estimated using simulations, and compared to Demonstrator data. Correlated time-delayed signals are used to identify decay signatures of isotopes produced in the germanium detectors. A good agreement between expected and measured rate is found and different simulation frameworks are used to estimate the uncertainties of the predictions. The simulation campaign is then extended to characterize the background for the LEGEND experiment, a proposed tonne-scale effort searching for neutrinoless double-beta decay in $^{76}$Ge.
description: 14 pages, 12 figures
The separation of ions and fluxes in nonlinear ion-acoustic waves
Creators: name: Dubinov, A. E.
name: Kitayev, I. N.
name: Kolotkov, D. Y.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The multi-species plasma of natural or laboratory origin is often considered to host nonlinear ion-acoustic waves. We present calculations of ion fluxes induced by nonlinear ion-acoustic waves in a plasma consisting of multiple ion populations, electrons, and dust. The following plasma models are considered: an electron-ion plasma with cold ions, a bi-ion plasma with two types of warm positively charged ions, and a dusty bi-ion plasma. It is found that in the electron-ion plasma, the wave-induced ion flux is directed oppositely to the phase speed of the nonlinear ion-acoustic wave. In the bi-ion plasma, there are two modes of ion-acoustic waves which are fast and slow waves. In the nonlinear fast ion-acoustic wave, the fluxes of both types of ions are found to be co-directed and drift against the wave. In a slow wave, the nonlinear fluxes of ions are directed in opposite directions. This result demonstrates the possibility to use these nonlinear wave-induced ion fluxes for effective separation of ions in the plasma. In a dusty bi-ion plasma, the ion separation process can be intensified by a super-nonlinear regime of slow ion-acoustic waves.
description: Accepted for publication in Physics of Plasmas
Quantum metamaterials: Electromagnetic waves in a Josephson qubit line
Creators: name: Rakhmanov, A. L.
name: Zagoskin, A. M.
name: Savel'ev, Sergey
name: Nori, Franco
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Other Condensed Matter (cond-mat.other)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider the propagation of a classical electromagnetic wave through a transmission line, formed by identical superconducting charge qubits inside a superconducting resonator. Since the qubits can be in a coherent superposition of quantum states, we show that such a system demonstrates interesting new effects, such as a ``breathing'' photonic crystal with an oscillating bandgap, and a ``quantum Archimedean screw'' that transports, at an arbitrary controlled velocity, Josephson plasma waves through the transmission line. The key ingredient of these effects is that the optical properties of the Josephson transmission line are controlled by the quantum coherent state of the qubits.
description: References added
ОСНОВНЫЕ ФАКТОРЫ СОВЕРШЕНСТВОВАНИЯ ОГНЕВОЙ ПОДГОТОВКИ СОТРУДНИКОВ ОВД
Creators: name: Якимов Сергей Сергеевич
name: Зубрилкин Сергей Дмитриевич
name: Гурылев Владимир Иванович
Publisher: name: Эпоха науки
Year: 2020
Subjects: Огневая подготовка
огнестрельное оружие
выстрел
формирование навыка
методика обучения
психологическая готовность

description: огневая подготовка является одним из основных предметов профессиональной и служебной подготовки сотрудников органов внутренних дел и направленна на формирование устойчивых навыков в обращении с огнестрельным оружием, обучение личного состава действовать в условиях, связанных с эффективным и правомерным его применением. Большинство предлагаемых методик обучения различным видам стрельбы из огнестрельного оружия условно можно отнести к начальному этапу и этапу совершенствования навыков.
ИСРОЛЬЗОВАНИЕ МЕТОДА ДОПОЛНИТЕЛЬНОЙ МОБИЛИЗАЦИИ АНАЛИЗАТОРОВ НА ЗАНЯТИЯХ ПО ФИЗИЧЕСКОЙ ПОДГОТОВКЕ С СОТРУДНИКАМИ МВД РОССИИ ПРИ ОБУЧЕНИИ БОЕВЫМ ПРИЁМАМ БОРЬБЫ
Creators: name: Евтушенко Александр Анатольевич
name: Силантьев Виктор Владимирович
Publisher: name: Эпоха науки
Year: 2020
Subjects: Метод
анализаторы
подготовка
имитация
упражнения
скоростно-силовые качества
боевые приемы борьбы

description: В статье авторами рассматривается методика обучения боевым приемам борьбы сотрудников МВД России с использованием методов дополнительной мобилизации анализаторов и ударного метода в тренировочном процессе. Акцентируется внимание на необходимости повышения уровня скоростно-силовой подготовленности сотрудников органов внутренних дел на различных этапах обучения.
Buffer capacity of human skeletal muscle : relationships to fiber composition and anaerobic performance
Creators: name: Parkhouse, Wade Stephen
Publisher: name: University of British Columbia
Year: 2010

description: Twenty male volunteers, comprising four distinct sub-samples (S=800m runners; R=varsity oarsmen; M=marathon runners; UT=untrained controls), participated in this study. They were made aware of the potential risks involved and informed consent was obtained. Anthropometric (hydrostatic weighing), physical characteristic and pulmonary function (Collins Respirometer) were assessed by standard techniques. Maximal oxygen consumption was determined on a progressive treadmill run (0.22 m.s⁻¹ every minute; initial speed 2.22 m.s⁻¹) to fatigue. Respiratory gases were monitered every 15 seconds (Beckman Metabolic Measurement Cart) with the four highest consecutive oxygen uptake values being averaged for determination of maximal oxygen uptake. Anaerobic performance (AST) was assessed as the time to fatigue the constant workload treadmill run at 3.52 m.s⁻¹, 20 percent incline. Post exercise blood lactate levels (HLa) were determined as an additional variable in assessment of anaerobic capacity. The M were significantly older than the other 3 groups while no significant differences existed between the trained groups for maximal oxygen uptake values. The S and R demonstrated significantly elevated AST (p<.01) and post-AST HLa (p<.05) levels above the M, whose values were similiar to the UT. This enhanced anaerobic performance could not be attributed to physical characteristic, pulmonary function or aerobic capacity differences of the trained athletes. Post-AST HLa displayed a significant relationship to anaerobic performance (r=.90). An enhanced lactate efflux mechanism was shown by the trained groups, which was not altered by training specificity. Muscle biopsies obtained at rest from the vastus lateralis muscle, were examined for fiber composition, pH, histidine and carnosine levels and buffer capacity (B). B was found to be elevated in the anaerobicly trained groups (p<.01) demonstrating a significant relationship to AST (r=.51) and fast-twitch fiber percentage (FT%; r=.51), which implied a relationship to muscle glycolytic capacity. Within the S and R, carnosine levels were found to be significantly elevated (p<.01), illustrating a significant correlation to B (r=.64) and FT% (r=.46), which emphasized the importance of carnosine as a physiological buffer and its possible relationship to the glycolytic capacity of the tissue. No differences in histidine levels or resting intramuscular pH were demonstrated with training specificity. These results suggest that the enhanced anaerobic performance could partially be attributed to elevated B and carnosine levels demonstrated within skeletal muscle subjected to anaerobic training. This may be due to the tissues enhanced capacities to seqestor the protons which accumulate during anaerobic glycolysis.