cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Validation of the Frequency Modulation technique applied to the pulsating delta Sct - gamma Dor eclipsing binary star KIC 8569819
Creators: name: Kurtz, Donald W.
name: Hambleton, Kelly M.
name: Shibahashi, Hiromoto
name: Murphy, Simon J.
name: Prsa, Andrej
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: KIC 8569819 is an eclipsing binary star with an early F primary and G secondary in a 20.85-d eccentric orbit. The primary is a delta Sct - gamma Dor star pulsating in both p modes and g modes. Using 4 years of Kepler Mission photometric data we independently model the light curve using the traditional technique with the modelling code PHOEBE, and we study the orbital characteristics using the new frequency modulation (FM) technique. We show that both methods provide the equivalent orbital period, eccentricity and argument of periastron, thus illustrating and validating the FM technique. In the amplitude spectrum of the p-mode pulsations we also discovered an FM signal compatible with a third body in the system, a low mass M dwarf in an 861-d orbit around the primary pair. However, the eclipses show no timing variations, indicating that the FM signal is a consequence of the intrinsic change in pulsation frequency, thus providing a cautionary tale. Our analysis shows the potential of the FM technique using {\it Kepler} data, and we discuss the prospects to detect planets and brown dwarfs in Kepler data for A and F stars even in the absence of transits and with no spectroscopic radial velocity curves. This opens the possibility of finding planets orbiting hotter stars that cannot be found by traditional techniques.
description: MNRAS in press
title: Возможности программы поиска скоплений микрокальцинатов на цифровых маммограммах для повышения эффективности диагностики рака молочной железы
title: Possibilities of Using the Program for Detecting Clusters of Microcalcifi cations on Digital Mammograms to Advance Breast Cancer Diagnosis
Creators: name: Кузнецов, Алексей Александрович
name: Валерьевна Климова, Наталья Валерьевна
Publisher: name: Издательский центр СурГУ
Year: 2022

description: Цель – оценить эффективность программного модуля обнаружения скоплений микрокальцинатов по данным цифровой маммографии. Материалы и методы. Разработана «Программа для поиска скоплений микрокальцинатов на цифровых маммограммах». Получено свидетельство государственной регистрации
программы для электронно-вычислительной машины № 2021681653 23.12.2021. Проведен ретроспективный
анализ маммографических исследований 248 пациенток, у которых был диагностирован рак без клинических
проявлений за период с 2016 по 2021 гг., с оценкой эффективности программного модуля обнаружения скоплений микрокальцинатов. Результаты. Разработанная «Программа для поиска скоплений микрокальцинатов на
цифровых маммограммах» повышает эффективность диагностики рака молочной железы на ранней стадии.
description: The study aims to evaluate the eff ectiveness of the software module for detecting clusters of
microcalcifi cations according to data received from digital mammography. Materials and methods. Program
for Detecting Clusters of Microcalcifi cations on Digital Mammograms was developed. The certifi cate of state
registration of the computer program No. 2021681653 was received on December 23, 2021. A retrospective analysis
of mammography studies of 248 patients who were diagnosed with cancer without clinical manifestations in 2016–
2021 was carried out. The eff ectiveness of the software module for detecting clusters of microcalcifi cations was
evaluated. Results. The developed Program for Detecting Clusters of Microcalcifi cations on Digital Mammograms
increases the effi ciency of diagnosing breast cancer at an early stage.
Response of stock prices to money supply announcements : Australian evidence
Creators: name: Singh, Ranjit Ajit.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author. Researchers can access this thesis by asking their local university, institution or public library to make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Maximum Tension: with and without a cosmological constant
Creators: name: Barrow, John D.
name: Gibbons, G. W.
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Physical sciences

description: We discuss various examples and ramifications of the conjecture that there exists a maximum force (or tension) in general relativistic systems. We contrast this situation with that in Newtonian gravity, where no maximum force exists, and relate it to the existence of natural units defined by constants of Nature and the fact that the Planck units of force and power do not depend on Planck's constant. We discuss how these results change in higher dimensions where the Planck units of force are no longer non-quantum. We discuss the changes that might occur to the conjecture if a positive cosmological constant exists and derive a maximum force bound using the Kottler-Schwarzschild-de Sitter black hole.
description: 12 pages, no figures, 3 typos corrected. Matches published version
Life Cycle of Dust in the Magellanic Clouds and the Milky Way
Creators: name: Zhukovska, Svitlana
name: Henning, Thomas
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: To a great extent, our understanding of the life cycle of dust is based on the observational and theoretical studies of the Milky Way and the Magellanic Clouds, which will be the topic of this contribution. Over past years, a large volume of observations with unprecedented spatial resolution has been accumulated for the Milky Way. It permits investigations of different stages of the life cycle of dust, from its formation in stellar sources to destruction in star-forming regions and supernovae shocks. Observations of dust emission, extinction, polarisation of light, and interstellar element depletions in the solar neighbourhood provide the most accurate constraints for the reference dust models applied to study extragalactic systems. However, global spatial studies of the circumstellar and interstellar dust are complicated in the Milky Way disk because of high extinction, confusion along the line of sight and large uncertainties in distances. In contrast, the favourable location in the sky and the proximity of the Magellanic Clouds allow detailed multi-wavelength studies of the dust-forming stellar populations and the investigation of variations of the interstellar grain properties for the entire galaxies. They enable the first comparison between the global stardust production rates from theoretical calculations and those from observations, which confirm discrepancy between accumulated stardust mass and observed interstellar dust mass - "the missing dust-source" problem. Modelling of the life cycle of dust in the Large Magellanic Cloud showed that dust growth by mantle accretion in the ISM, a major dust source in the Milky Way, can be responsible for the existing dust mass in the LMC. We will present comparison of the dust input from different sources to the dust budgets of the Milky Way and the Magellanic Clouds, which reveals how the role of these dust sources depends on metallicity.
description: 18 pages, 6 figures, published recently online in the Proceedings of Science for the conference: Life Cycle of Dust in the Universe, Observations, Theory and Laboratory Experiments
Quantum learning of coherent states
Creators: name: Sentís, Gael
name: Guta, Madalin
name: Adesso, Gerardo
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We develop a quantum learning scheme for binary discrimination of coherent states of light. This is a problem of technological relevance for the reading of information stored in a digital memory. In our setting, a coherent light source is used to illuminate a memory cell and retrieve its encoded bit by determining the quantum state of the reflected signal. We consider a situation where the amplitude of the states produced by the source is not fully known, but instead this information is encoded in a large training set comprising many copies of the same coherent state. We show that an optimal global measurement, performed jointly over the signal and the training set, provides higher successful identification rates than any learning strategy based on first estimating the unknown amplitude by means of Gaussian measurements on the training set, followed by an adaptive discrimination procedure on the signal. By considering a simplified variant of the problem, we argue that this is the case even for non-Gaussian estimation measurements. Our results show that, even in absence of entanglement, collective quantum measurements yield an enhancement in the readout of classical information, which is particularly relevant in the operating regime of low-energy signals.
description: 14+6 pages, 3 figures
Tunneling spectroscopy of Majorana-Kondo devices
Creators: name: Eriksson, Erik
name: Nava, Andrea
name: Mora, Christophe
name: Egger, Reinhold
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the local density of states (LDOS) in systems of Luttinger-liquid nanowires connected to a common mesoscopic superconducting island, in which Majorana bound states give rise to different types of topological Kondo effects. We show that electron interactions enhance the low-energy LDOS in the leads close to the island, with unusual exponents due to Kondo physics that can be probed in tunneling experiments.
description: 9 pages, 2 figures
Efficient Coordinated Recovery of Sparse Channels in Massive MIMO
Creators: name: Masood, Mudassir
name: Afify, Laila H.
name: Al-Naffouri, Tareq Y.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Applications (stat.AP)
subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: This paper addresses the problem of estimating sparse channels in massive MIMO-OFDM systems. Most wireless channels are sparse in nature with large delay spread. In addition, these channels as observed by multiple antennas in a neighborhood have approximately common support. The sparsity and common support properties are attractive when it comes to the efficient estimation of large number of channels in massive MIMO systems. Moreover, to avoid pilot contamination and to achieve better spectral efficiency, it is important to use a small number of pilots. We present a novel channel estimation approach which utilizes the sparsity and common support properties to estimate sparse channels and require a small number of pilots. Two algorithms based on this approach have been developed which perform Bayesian estimates of sparse channels even when the prior is non-Gaussian or unknown. Neighboring antennas share among each other their beliefs about the locations of active channel taps to perform estimation. The coordinated approach improves channel estimates and also reduces the required number of pilots. Further improvement is achieved by the data-aided version of the algorithm. Extensive simulation results are provided to demonstrate the performance of the proposed algorithms.
description: 16 pages, 12 figures
Directed motion of doublons and holes in periodically driven Mott insulators
Creators: name: Genske, Maximilian
name: Rosch, Achim
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Periodically driven systems can lead to a directed motion of particles. We investigate this ratchet effect for a bosonic Mott insulator where both a staggered hopping and a staggered local potential vary periodically in time. If driving frequencies are smaller than the interaction strength and the density of excitations is small, one obtains effectively a one-particle quantum ratchet describing the motion of doubly occupied sites (doublons) and empty sites (holes). Such a simple quantum machine can be used to manipulate the excitations of the Mott insulator. For suitably chosen parameters, for example, holes and doublons move in opposite direction. To investigate whether the periodic driving can be used to move particles "uphill", i.e., against an external force, we study the influence of a linear potential $- g x$. For long times, transport is only possible when the driving frequency $ω$ and the external force $g$ are commensurate, $n_0 g = m_0 ω$, with $\frac{n_0}{2},m_0 \in \mathbb{Z}$.
description: 11 pages, 9 figures
Effects of elevated pCO2 on the response of coccolithophore Emiliania huxleyi to prolonged darkness
Creators: name: Gao, Letian
name: Huang, Zhongjian
name: Zhong, Zhihai
name: Shi, Xiaomeng
name: Chang, Xing
name: Sun, Yuhong
name: Zhang, Nuoyan
name: Zou, Ning
name: Tong, Shanying
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Molecular Biology
subject: Physiology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Marine Biology
subject: Cancer
subject: Inorganic Chemistry
subject: Plant Biology

description: Although numerous studies have examined the responses of coccolithophores to ocean acidification, less is known on the fate of those calcifying organisms when they sink to the ocean’s aphotic regions. In this study, the coccolithophore Emiliania huxleyi was first grown under a regular 12/12 light/dark cycle at 20°C, exposed to both high (1000 μatm) and ambient CO2 (410 μatm) levels. The cultures were then transferred to continuous darkness for 96 h at 20°C or 16°C. We found that elevated CO2 decreased the specific growth rate while increasing the cellular particulate organic carbon (POC) and nitrogen (PON) contents and the POC/PON ratio of E. huxleyi in the light/dark period. After 96 h of dark acclimation, the cell abundance decreased more obviously at 20°C than at 16°C but showed no significant difference between the two CO2 treatments. The decrease in volumetric POC concentration was most prominent in the high CO2/20°C treatment and least in the ambient CO2/16°C treatment. At 16°C, the PON concentration increased in the high CO2 cultures and exhibited no change in the ambient CO2 cultures. While at 20°C, the PON concentration decreased significantly both under high and ambient CO2 conditions. The final POC/PON ratio showed no significant differences among the different temperature and CO2 treatments. Overall, a higher percentage of POC relative to that of PON was lost in darkness with increasing CO2 concentration, with potential implications for the ocean’s nutrient cycle.
A study of bonus share issues made by selected Australian companies
Creators: name: Woolley, Glenn P.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author. Researchers can access this thesis by asking their local university, institution or public library to make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Supplementary Information for EJMSOL-D-22-00210-R1
Creators: name: Ni, Tao
name: Zaccariotto, Mirco
name: Fan, Xuanmei
name: Zhu, Qizhi
name: Schrefler, Bernhard A.
name: Galvanetto, Ugo
Publisher: name: figshare
Year: 2022
Subjects: subject: 91308 Solid Mechanics
subject: FOS: Mechanical engineering

description: The supplementary information of the revised paper "A peridynamic differential operator-based scheme for the extended bond-based peridynamics and its application to fracture problems of brittle solids".
Inverse Ising inference with correlated samples
Creators: name: Obermayer, Benedikt
name: Levine, Erel
Publisher: name: arXiv
Year: 2014
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Correlations between two variables of a high-dimensional system can be indicative of an underlying interaction, but can also result from indirect effects. Inverse Ising inference is a method to distinguish one from the other. Essentially, the parameters of the least constrained statistical model are learned from the observed correlations such that direct interactions can be separated from indirect correlations. Among many other applications, this approach has been helpful for protein structure prediction, because residues which interact in the 3D structure often show correlated substitutions in a multiple sequence alignment. In this context, samples used for inference are not independent but share an evolutionary history on a phylogenetic tree. Here, we discuss the effects of correlations between samples on global inference. Such correlations could arise due to phylogeny but also via other slow dynamical processes. We present a simple analytical model to address the resulting inference biases, and develop an exact method accounting for background correlations in alignment data by combining phylogenetic modeling with an adaptive cluster expansion algorithm. We find that popular reweighting schemes are only marginally effective at removing phylogenetic bias, suggest a rescaling strategy that yields better results, and provide evidence that our conclusions carry over to the frequently used mean-field approach to the inverse Ising problem.
description: 18 pages, 6 figures; accepted at New J Phys
Alpha clustering and flow in ultra-relativistic heavy-ion collisions
Creators: name: Broniowski, Wojciech
name: Arriola, Enrique Ruiz
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We show how ultra-relativistic collisions of light nuclei with heavy targets may be used to record snap-shots of the ground-state configurations and reveal information on cluster correlations. The development of collective flow in the formed fireball, which reflects the geometric correlations in the initial state, is essential for the method. As an illustration we analyze the 12C-208Pb collisions.
description: Talk presented at SOTANCP3, 26-30 May 2014, Yokohama, 5 pages
Energetics and magnetism of Co-doped GaN(0001) surfaces: A first-principles stud
Creators: name: Qin, Zhenzhen
name: Xiong, Zhihua
name: Qin, Guangzhao
name: Chen, Lanli
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A comprehensive first-principles study of the energetics, electronic and magnetic properties of Co-doped GaN(0001) thin films are presented and the effect of surface structure on the magnetic coupling between Co atoms is demonstrated. It is found that Co atoms prefer to substitute the surface Ga sites in different growth conditions. In particular, a CoN/GaN interface structure with Co atoms replacing the first Ga layer is preferred under N-rich and moderately Ga-rich conditions, while CoGax/GaN interface is found to be energetically stable under extremely Ga-rich conditions. It's worth noted that the antiferromagnetic coupling between Co atoms is favorable in clean GaN(0001) surface, but the existence of FM would be expected to occur as Co concentration increased in Ga-bilayer GaN(0001) surface. Our study provides the theoretical understanding for experimental research on Co-doped GaN films and might promise the Co:GaN system potential applications in spin injection devices.
description: 7 figures
The determinants of accounting information published by private not-for-profit organisations
Creators: name: Simnett, Roger.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author. Researchers can access this thesis by asking their local university, institution or public library to make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Lista dos aplicativos resultantes do Mapeamento da Literatura Multivocal
Creators: name: Jéssica I, Pegorini
name: Alinne C. Corrêa Souza
name: Souza, Francisco Carlos M.
name: Luiz C. Pessoa Albini
Publisher: name: Zenodo
Year: 2023

description: Este documento faz parte dos resultados alcançados por meio da condução de um Mapeamento da Literatura Multivocal, no qual são apresentados os estudos e aplicativos identificados pelo mesmo.
The financial management function : an examination of its nature and role within the organizational framework
Creators: name: Sirianni, Frank Anthony.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author. Researchers can access this thesis by asking their local university, institution or public library to make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Building better writing assignments: TiLTing tasks towards transparency
Creators: name: Keeney, Sarah
name: Speidel, Zoe
Publisher: name: Oregon Health and Science University
Year: 2023
Subjects: subject: Diversity, Equity, Inclusion
subject: Writing
subject: Thinking
subject: Learning
subject: Students
subject: Health sciences education
subject: Assessment of learning
subject: Skill building

description: Most courses at OHSU contain some form of written assessment, and most faculty want students to improve their writing skills. We have noticed that many writing assignment instructions emphasize the purpose of the assessment and the grading criteria but not the tasks needed to complete the writing assignment from start to finish. We have also noticed that the writing-related skills and knowledge needed to succeed on the assignment are not necessarily present or adequately emphasized within the course itself. This is where the Transparency in Learning and Teaching (TiLT) model comes in. The TiLT model is a framework that allows instructors to reimagine writing assignments, both in terms of their orientation toward problem-centered learning and in terms of the instruction document's structure
Stored energies in electric and magnetic current densities for small antennas
Creators: name: Jonsson, B. L. G.
name: Gustafsson, Mats
Publisher: name: arXiv
Year: 2014
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences
subject: 35Q61, 49K20

description: Electric and magnetic currents are essential to describe electromagnetic stored energy, as well as the associated quantities of antenna Q and the partial directivity to antenna Q-ratio, D/Q, for general structures. The upper bound of previous D/Q-results for antennas modeled by electric currents is accurate enough to be predictive, this motivates us here to extend the analysis to include magnetic currents. In the present paper we investigate antenna Q bounds and D/Q-bounds for the combination of electric- and magnetic-currents, in the limit of electrically small antennas. This investigation is both analytical and numerical, and we illustrate how the bounds depend on the shape of the antenna. We show that the antenna Q can be associated with the largest eigenvalue of certain combinations of the electric and magnetic polarizability tensors. The results are a fully compatible extension of the electric only currents, which come as a special case. The here proposed method for antenna Q provides the minimum Q-value, and it also yields families of minimizers for optimal electric and magnetic currents that can lend insight into the antenna design.
description: 27 pages 7 figures
Gravitational-wave sensitivity curves
Creators: name: Moore, Christopher J.
name: Cole, Robert H.
name: Berry, Christopher P. L.
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: There are several common conventions in use by the gravitational-wave community to describe the amplitude of sources and the sensitivity of detectors. These are frequently confused. We outline the merits of and differences between the various quantities used for parameterizing noise curves and characterizing gravitational-wave amplitudes. We conclude by producing plots that consistently compare different detectors. Similar figures can be generated on-line for general use at \url{http://rhcole.com/apps/GWplotter}.
description: Paper to accompany resource at http://rhcole.com/apps/GWplotter
Computational speed-up in a single qudit NMR quantum information processor
Creators: name: Silva, I. A.
name: Çakmak, B.
name: Karpat, G.
name: Vidoto, E. L. G.
name: Soares-Pinto, D. O.
name: deAzevedo, E. R.
name: Fanchini, F. F.
name: Gedik, Z.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum algorithms are known for presenting more efficient solutions to certain computational tasks than any corresponding classical algorithm. It has been thought that the origin of the power of quantum computation has its roots in non-classical correlations such as entanglement or quantum discord. However, it has been recently shown that even a single pure qudit is sufficient to design an oracle-based algorithm which solves a black-box problem faster than any classical approach to the same problem. In particular, the algorithm that we consider determines whether eight permutation functions defined on a set of four elements is positive or negative cyclic. While any classical solution to this problem requires two evaluations of the function, quantum mechanics allows us to perform the same task with only a single evaluation. Here, we present the first experimental demonstration of the considered quantum algorithm with a quadrupolar nuclear magnetic resonance setup using a single four-level quantum system, i.e., a ququart.
description: Improved version with new title. 5 pages, 3 figures
title: Качество атмосферного воздуха в Новгородской области
Creators: name: Амосова, Анна
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2022

description: Качество атмосферного воздуха – это определенная совокупность физических, химических и биологических показателей, оказывающая воздействие на живые организмы и их места обитания. При определении качества воздуха используются критерии, которые обозначают допустимые нормативные пределы концентрации для
каждого из загрязнителей. Качество атмосферного воздуха считается в норме, если примеси в его составе остаются в пределах допустимой концентрации (ПДК). В статье проанализирован материал, позволяющий судить об изменении качества атмосферного воздуха городах Новгородской области в период с 2016 по 2020 гг. В атмосферном воздухе исследовалось наличие наиболее вредных 16 примесей, по каждому из которых
рассматривался ПДКмр и исходя из общих значений определялось значение ИЗА. Мониторинг качества атмосферного воздуха крайне необходим и позволяет отслеживать и прогнозировать негативные изменения, а также устранять последствия, вызванные природными и особенно антропогенными факторами.
Reflection Positivity for Parafermions
Creators: name: Jaffe, Arthur
name: Pedrocchi, Fabio L.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We establish reflection positivity for Gibbs trace states for a class of gauge-invariant, reflection-invariant Hamiltonians describing parafermion interactions on a lattice. We relate these results to recent work in the condensed-matter physics literature.
description: 15 pages
Conceptual Preconditions of Overcoming of Relativistic Intentions in Modern Philosophy of Science
Creators: name: Kulikov, Sergey
Publisher: name: arXiv
Year: 2014
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Physical sciences
subject: 03A99

description: The paper defends the thesis that it's possible to maintain some conceptual preconditions of overcoming of relativistic intentions in modern philosophy of science ("there are no any general foundations in philosophy of science"). We found two general foundations in philosophy of science as a minimum. From the first side it's realistic to reveal on the base of special understanding of time the value of time not only in natural thought (especially in theory of gravity) but also in humanitarian knowledge. That's why philosophy of science has independent position in epistemology and ontology corresponding to interpretation of time as a general category of scientific thinking. The nature of time has internally inconsistent (paradoxical) character. Time is phenomenon which existing and not existing at the same time. This phenomenon is identified with imaginary movement and also ideal (formal) process of formation of the nature. The general understanding of time is connected with its "mathematical" meaning as calculable formal regulation of language practice and also the universal organization rules of quantitative parameters of intelligence of natural (physical) processes. From the second side we can say that exist an actual branch of philosophy of science. It exists on the basis of disclosure of aprioristic limits of consciousness of its cultural and historical development. There is possible a special interpretation of time. In that context time is the connection of an action of the cultural phenomenon or its "energy" with some kind of "weight", the historical importance of a separate limit of consciousness through analog of "distance" as intensity of cultural and historical space (or "oppositional nature of interaction of mental intentions").
description: 6 pages, conference "Science and Education" (Russia, Tomsk, 19-23 April, 2010), translated from Russian by author
Методы исследования упругих характеристик нанообъектов (обзор)
Creators: name: Филиппов Артем Александрович
name: Фомин Василий Михайлович
Publisher: name: Физическая мезомеханика
Year: 2020
Subjects: аддитивные технологии
холодное газодинамическое напыление
лазерное воздействие
покрытие
микроструктура
шероховатость
морфология

description: В работе представлен обзор работ, опубликованных за последние 20 лет в рецензируемых журналах России в области определения упругих характеристик наноматериалов. Из литературы известно, что при изменении характерного размера наноматериалов их характеристики могут изменяться в несколько раз, что необходимо учитывать при создании конкретных конструкций, наполненных наночастицами.
Compliance with accounting and auditing standards in Australia
Creators: name: Ramsay, Alan L.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author. Researchers can access this thesis by asking their local university, institution or public library to make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Temperature Fluctuations driven by Magnetorotational Instability in Protoplanetary Disks
Creators: name: McNally, Colin P.
name: Hubbard, Alexander
name: Yang, Chao-Chin
name: Mac Low, Mordecai-Mark
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The magnetorotational instability (MRI) drives magnetized turbulence in sufficiently ionized regions of protoplanetary disks, leading to mass accretion. The dissipation of the potential energy associated with this accretion determines the thermal structure of accreting regions. Until recently, the heating from the turbulence has only been treated in an azimuthally averaged sense, neglecting local fluctuations. However, magnetized turbulence dissipates its energy intermittently in current sheet structures. We study this intermittent energy dissipation using high resolution numerical models including a treatment of radiative thermal diffusion in an optically thick regime. Our models predict that these turbulent current sheets drive order unity temperature variations even where the MRI is damped strongly by Ohmic resistivity. This implies that the current sheet structures where energy dissipation occurs must be well resolved to correctly capture the flow structure in numerical models. Higher resolutions are required to resolve energy dissipation than to resolve the magnetic field strength or accretion stresses. The temperature variations are large enough to have major consequences for mineral formation in disks, including melting chondrules, remelting calcium-aluminum rich inclusions, and annealing silicates; and may drive hysteresis: current sheets in MRI active regions could be significantly more conductive than the remainder of the disk.
description: 16 pages, 13 figures, ApJ In Press, updated to match proofs
Прогнозирование образования кристаллографических текстур при интенсивном неупругом деформировании поликристаллических образцов на основе двухуровневой статистической упруговязкопластической модели
Creators: name: Янц Антон Юрьевич
name: Трусов Петр Валентинович
name: Остапович Кирилл Вадимович
Publisher: name: Физическая мезомеханика
Year: 2020
Subjects: интенсивное неупругое деформирование
кристаллографическая текстура
многоуровневая модель
физические теории упруговязкопластичности
метод конечных элементов
кластерный анализ

description: Предложена многоуровневая математическая модель для исследования технологических процессов обработки металлов и сплавов методами интенсивной неупругой деформации, основанная на физической теории упруговязкопластичности и позволяющая описывать эволюционирующую структуру, в том числе прогнозировать образование кристаллографических текстур. Приведена постановка краевой нестационарной геометрически нелинейной задачи квазистатического упруговязкопластического деформирования макроскопических образцов из поликристаллических материалов в скоростной форме, включающая системы уравнений, описывающие физические механизмы на различных структурно-масштабных уровнях. Отличительной особенностью выполненной постановки является учет переменных контактных условий на поверхности материала, устанавливаемых в каждый момент времени процесса нагружения. В качестве базовой конститутивной модели использована двухуровневая модель поликристалла, в которой характеристики представительного объема макроуровня вычисляются согласованным статистическим осреднением по значениям аналогичных величин для входящих в него элементов мезоуровня, соответствующих кристаллитам. В рамках обозначенного подхода информация о кристаллографических текстурах в различных частях образца представляется в виде выборок ориентаций кристаллических решеток. Для редуцированного воспроизведения связанных с ними выходных данных численных расчетов предложено привлечение методов кластерного анализа. С применением разработанного аппарата проведено исследование процесса волочения сплошного медного цилиндра.
title: Communication between Power Blackout and Mobile Network Overload
Creators: name: Reuter, Christian
Publisher: name: IGI Global
Year: 2023

description: In cases of power outages the communication of organizations responsible for recovery work (emergency services, public administration, energy network operators) to the public poses several challenges, primarily the breakdowns of many communication infrastructures and therefore the limitations of the use of classical communication media. This paper surveys technical concepts to support crisis communication during blackouts. Therefore it first investigates the perception and information demands of citizens and communication infrastructures in different scenarios. Furthermore, it analyzes communication infrastructures and their availability in different scenarios. Finally it proposes ‘BlaCom', an ICT-based concept for blackout communication, which addresses the time span between the occurrence of the energy blackout and the possible overload of the mobile phone network. It combines general information with location-specific and setting-specific information, was implemented as a prototype smartphone application and evaluated with 12 potential end users.
Giant gravitons and the emergence of geometric limits in $β$-deformations of ${\cal N}=4$ SYM
Creators: name: Berenstein, David
name: Dzienkowski, Eric
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study a one parameter family of supersymmetric marginal deformations of ${\cal N}=4$ SYM with $U(1)^3$ symmetry, known as $β$-deformations, to understand their dual $AdS\times X$ geometry, where $X$ is a large classical geometry in the $g_{YM}^2N\to \infty$ limit. We argue that we can determine whether or not $X$ is geometric by studying the spectrum of open strings between giant gravitons states, as represented by operators in the field theory, as we take $N\to\infty$ in certain double scaling limits. We study the conditions under which these open strings can give rise to a large number of states with energy far below the string scale. The number-theoretic properties of $β$ are very important. When $\exp(iβ)$ is a root of unity, the space $X$ is an orbifold. When $\exp(iβ)$ close to a root of unity in a double scaling limit sense, $X$ corresponds to a finite deformation of the orbifold. Finally, if $β$ is irrational, sporadic light states can be present.
description: 1 Table
Экспериментальное и численное изучение катастрофической стадии разрушения горных пород и горных массивов
Creators: name: Бакеев Рустам Альфредович
name: Кульков Алексей Сергеевич
name: Перышкин Алексей Юрьевич
name: Смолин Игорь Юрьевич
name: Макаров Павел Васильевич
Publisher: name: Физическая мезомеханика
Year: 2020
Subjects: горные породы
геосреды
разрушение
поврежденность
стадийность
численное моделирование

description: Методом доплеровской лазерной интерферометрии измерены продолжительность переходного процесса от медленной квазистационарной стадии накопления повреждений в образцах горных пород к сверхбыстрой катастрофической стадии разрушения и продолжительность автокаталитической стадии макроскопического разрушения. Малые образцы горных пород испытывались на сжатие и трехточечный изгиб. В экспериментах измерялась скорость смещения боковой поверхности нагружаемых образцов вплоть до их макроскопического разрушения. Показано, что скорость смещения поверхности образцов на катастрофической стадии на три порядка превышает среднюю скорость смещения на квазистационарной стадии накопления повреждений. Продолжительность переходной к катастрофическому разрушению стадии оценена в 60–100 мс, а продолжительность сверхбыстрого катастрофического режима разрушения — в 15–20 мс для малых образцов мрамора. Переходная стадия является процессом самоорганизации отдельных актов разрушения в состояние самосогласованной критичности. На этой стадии распределение отдельных актов разрушения эволюционирует в степенные распределения. Предложена простая модель разрушения, отвечающая степенным законам распределения и имеющая хорошее согласие с данными экспериментов. По разработанной математической модели выполнены расчеты разрушения малых образцов горных пород, воспроизводящих эксперименты по их одноосному сжатию и трехточечному изгибу, и разрушения в горных массивах с выработками в процессе ведения горных работ. Выполнено численное моделирование процесса формирования разломов и разрушения для горной области Центрального Алтая, включая форшоковый процесс, главное событие (Чуйское землетрясение 27.09.2003 г.) и афтершоковый процесс. Расчетный сейсмический процесс полностью отвечает закону повторяемости землетрясений Гутенберга–Рихтера, а расчетный афтершоковый процесс — закону Омори.
The audits of internal control systems with a computer service bureau sub-system
Creators: name: Pound, G. D.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author. Researchers can access this thesis by asking their local university, institution or public library to make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Plasma Leakage from the Centrifugal Magnetospheres of Magnetic B-Type Stars
Creators: name: Shultz, Matt
name: Wade, Gregg
name: Rivinius, Thomas
name: Grunhut, Jason
name: Petit, Véronique
name: Collaboration, the MiMeS
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Magnetic B-type stars are often host to Centrifugal Magnetospheres (CMs). Here we describe the results of a population study encompassing the full sample of known magnetic early B-type stars, focusing on those with detectable CMs. We present revised rotational and magnetic parameters for some stars, clarifying their positions on the rotation-confinement diagram, and? find that plasma densities within their CMs are much lower than those predicted by centrifugal breakout.
description: 2 pages, 1 figure, proceedings of the IAU Symposium 307 held in Geneva in June 2014
Закономерности многоуровневого разрушения покрытий Ti-Al-N в процессе одноосного растяжения
Creators: name: Никонов Антон Юрьевич
name: Дмитриев Андрей Иванович
name: Панин Алексей Викторович
name: Шугуров Артур Рубинович
Publisher: name: Физическая мезомеханика
Year: 2020
Subjects: керамические покрытия
одноосное растяжение
зарождение трещин
разрушение
молекулярная динамика
многоуровневый подход

description: Закономерности разрушения покрытий Ti0.45Al0.55N при одноосном растяжении исследованы на различных масштабных уровнях. Покрытия наносили на подложки из стали 12Х18Н9Т методом реактивного магнетронного распыления при постоянном токе. Методом молекулярной динамики выявлено влияние неоднородного распределения алюминия в покрытиях на характер зарождения и распространения в них трещин. Экспериментально установлено, что процесс макроскопического разрушения покрытий Ti0.45Al0.55N на металлической подложке при одноосном растяжении состоит из четырех стадий, продолжительность которых определяется конкуренцией между различными механизмами релаксации напряжений. Продемонстрировано влияние толщины покрытий на развитие конкурирующих механизмов их деформации и разрушения.
Synchronizing spatio-temporal chaos with imperfect models: a stochastic surface growth picture
Creators: name: Pazó, Diego
name: López, Juan M.
name: Gallego, Rafael
name: Rodríguez, Miguel A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We study the synchronization of two spatially extended dynamical systems where the models have imperfections. We show that the synchronization error across space can be visualized as a rough surface governed by the Kardar-Parisi-Zhang equation with both upper and lower bounding walls corresponding to nonlinearities and model discrepancies, respectively. Two types of model imperfections are considered: parameter mismatch and unresolved fast scales, finding in both cases the same qualitative results. The consistency between different setups and systems indicates the results are generic for a wide family of spatially extended systems.
description: 10 pages
Probing for Exoplanets Hiding in Dusty Debris Disks: Disk Imaging, Characterization, and Exploration with HST/STIS Multi-Roll Coronagraphy
Creators: name: Schneider, Glenn
name: Grady, Carol A.
name: Hines, Dean C.
name: Stark, Christopher C.
name: Debes, John H.
name: Carson, Joe
name: Kuchner, Marc J.
name: Perrin, Marshall D.
name: Weinberger, Alycia J.
name: Wisniewski, John P.
name: Silverstone, Murray D.
name: Jang-Condell, Hannah
name: Henning, Thomas
name: Woodgate, Bruce E.
name: Serabyn, Eugene
name: Moro-Martin, Amaya
name: Tamura, Motohide
name: Hinz, Phillip M.
name: Rodigas, Timothy J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Spatially resolved scattered-light images of circumstellar (CS) debris in exoplanetary systems constrain the physical properties and orbits of the dust particles in these systems. They also inform on co-orbiting (but unseen) planets, systemic architectures, and forces perturbing starlight-scattering CS material. Using HST/STIS optical coronagraphy, we have completed the observational phase of a program to study the spatial distribution of dust in ten CS debris systems, and one "mature" protoplanetrary disk all with HST pedigree, using PSF-subtracted multi-roll coronagraphy. These observations probe stellocentric distances > 5 AU for the nearest stars, and simultaneously resolve disk substructures well beyond, corresponding to the giant planet and Kuiper belt regions in our Solar System. They also disclose diffuse very low-surface brightness dust at larger stellocentric distances. We present new results inclusive of fainter disks such as HD92945 confirming, and better revealing, the existence of a narrow inner debris ring within a larger diffuse dust disk. Other disks with ring-like sub-structures, significant asymmetries and complex morphologies include: HD181327 with a posited spray of ejecta from a recent massive collision in an exo-Kuiper belt; HD61005 suggested interacting with the local ISM; HD15115 & HD32297, discussed also in the context of environmental interactions. These disks, and HD15745, suggest debris system evolution cannot be treated in isolation. For AU Mic's edge-on disk, out-of-plane surface brightness asymmetries at > 5 AU may implicate one or more planetary perturbers. Time resolved images of the MP Mus proto-planetary disk provide spatially resolved temporal variability in the disk illumination. These and other new images from our program enable direct inter-comparison of the architectures of these exoplanetary debris systems in the context of our own Solar System.
description: 109 pages, 43 figures, accepted for publication in the Astronomical Journal