cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Black Holes with Scalar Hair in Three Dimensions
Creators: name: Karakasis, Thanasis
name: Koutsoumbas, George
name: Papantonopoulos, Eleftherios
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Three - dimensional static and spinning black hole solutions of the Einstein-Klein-Gordon system are obtained for a particular scalar field configuration. At large distances, and for small scalar field, the solutions reduce to the BTZ black hole. The scalar field dresses the black hole with secondary scalar hair, since the scalar charge is related to the conserved black hole mass and is not an independent charge. A self interacting potential is included, containing a mass term that is above the Breitenlohner-Freedman bound in three dimensions. Independence of the scalar potential from the conserved black hole charges, imposes fixed mass and angular momentum to scalar charge ratios. The thermodynamic properties as well as the energy conditions of the black hole are analysed.
description: Accepted for publication in PRD
Addressing Age-Related Accessibility Needs of Senior Users Through Model-Driven Engineering
Creators: name: Wickramathilaka, Shavindra
name: Mueller, Ingo
Publisher: name: arXiv
Year: 2023
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: One of the main reasons that cause seniors to face accessibility barriers when trying to use software applications is that the age-related user interface (UI) needs of seniors (e.g., physical and cognitive limitations) are not properly addressed in software user interfaces. The existing literature proposes model-driven engineering based UI adaptations as a prominent solution for this phenomenon. But in our exploration into the domain, we identified that the existing work lacks comprehensiveness when it comes to integrating accessibility into software modelling tools and methods when compared to a well-recognised accessibility standard such as the Web Content Accessibility Guidelines (WCAG). Thus in this paper, we outline a research roadmap that aims to use WCAG as a reference framework to design domain-specific languages that model the diverse accessibility scenarios of senior users via user context information and UI adaptation rules modelling so that they meet the accessibility standards specified in WCAG.
description: Accepted to the 16th International Conference on Cooperative and Human Aspects of Software Engineering (CHASE 2023), 6 pages, 2 figures, 1 table
An examination of alternative means of road user charging
Creators: name: Mottram, Clive Kenneth.
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.
Hopf hypersurfaces in spaces of oriented geodesics
Creators: name: Georgiou, Nikos
name: Guilfoyle, Brendan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: A Hopf hypersurface in a (para-)Kaehler manifold is a real hypersurface for which one of the principal directions of the second fundamental form is the (para-)complex dual of the normal vector. We consider particular Hopf hypersurfaces in the space of oriented geodesics of a non-flat space form of dimension greater than 2. For spherical and hyperbolic space forms, the oriented geodesic space admits a canonical Kaehler-Einstein and para-Kaehler-Einstein structure, respectively, so that a natural notion of a Hopf hypersurface exists. The particular hypersurfaces considered are formed by the oriented geodesics that are tangent to a given convex hypersurface in the underlying space form. We prove that a tangent hypersurface is Hopf in the space of oriented geodesics with respect to this canonical (para-)Kaehler structure iff the underlying convex hypersurface is totally umbilic and non-flat. In the case of 3 dimensional space forms, however, there exists a second canonical complex structure which can also be used to define Hopf hypersurfaces. We prove that in this dimension, the tangent hypersurface of a convex hypersurface in the space form is always Hopf with respect to this second complex structure.
description: 10 pages AMS-TEX
Gravitational waves or X-ray counterpart ? No need to choose
Creators: name: Mignon-Risse, Raphaël
name: Varniere, Peggy
name: Casse, Fabien
Publisher: name: Zenodo
Year: 2022

description: Binary black holes emit gravitational waves (GWs) as they inspiral towards coalescence. Searches for electromagnetic counterparts to GWs rely on looking for common sources producing both waves. Here, we take a different approach: we investigate the impact of radiation zone effects including retardation effects associated with GWs onto the outer circumbinary disk around stellar-mass black holes, using general relativistic hydrodynamical simulations and a general relativistic ray-tracing code. We show that radiation zone effects leave an imprint onto the disk, leading to quasi-periodic patterns in the X-ray lightcurve.
Lithium Separations Using Advanced Porous Material Composites
Creators: name: EDEN, NATHAN TOSHIHIRO
Publisher: name: Monash University
Year: 2023
Subjects: Metal organic frameworks
Separation science
Mineral processing/beneficiation
Nanomaterials
Separation technologies

description: Lithium is currently extracted by slow, expansive and chemically intensive processing, taking around 12 months and 2.3 million litres of water per ton of lithium. To satisfy current and emerging demand for lithium, new materials and processes must be developed. In this thesis, membranes were prepared from advanced porous materials that have an appropriate size and interaction to improve lithium transport. This work was then translated into more stable porous materials with similar properties. Finally, a chemical-free regeneration technique was extended towards lithium separations. These low cost and scalable methods provide fundamental insight and meaningful directions towards commercialisation.
Formation of X-ray emitting stationary shocks in magnetized protostellar jets
Creators: name: Ustamujic, S.
name: Orlando, S.
name: Bonito, R.
name: Miceli, M.
name: de Castro, A. I. Gómez
name: López-Santiago, J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: X-ray observations of protostellar jets show evidence of strong shocks heating the plasma up to temperatures of a few million degrees. In some cases, the shocked features appear to be stationary. They are interpreted as shock diamonds. We aim at investigating the physics that guides the formation of X-ray emitting stationary shocks in protostellar jets, the role of the magnetic field in determining the location, stability, and detectability in X-rays of these shocks, and the physical properties of the shocked plasma. We performed a set of 2.5-dimensional magnetohydrodynamic numerical simulations modelling supersonic jets ramming into a magnetized medium and explored different configurations of the magnetic field. The model takes into account the most relevant physical effects, namely thermal conduction and radiative losses. We compared the model results with observations, via the emission measure and the X-ray luminosity synthesized from the simulations. Our model explains the formation of X-ray emitting stationary shocks in a natural way. The magnetic field collimates the plasma at the base of the jet and forms there a magnetic nozzle. After an initial transient, the nozzle leads to the formation of a shock diamond at its exit which is stationary over the time covered by the simulations (~ 40 - 60 yr; comparable with time scales of the observations). The shock generates a point-like X-ray source located close to the base of the jet with luminosity comparable with that inferred from X-ray observations of protostellar jets. For the range of parameters explored, the evolution of the post-shock plasma is dominated by the radiative cooling, whereas the thermal conduction slightly affects the structure of the shock.
description: Accepted for publication in Astronomy and Astrophysics
Single-mode dispersive waves and soliton microcomb dynamics
Creators: name: Yi, Xu
name: Yang, Qi-Fan
name: Zhang, Xueyue
name: Yang, Ki Youl
name: Vahala, Kerry
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Dissipative Kerr solitons are self-sustaining optical wavepackets in resonators. They use the Kerr nonlinearity to both compensate dispersion and to offset optical loss. Besides providing insights into nonlinear resonator physics, they can be applied in frequency metrology, precision clocks, and spectroscopy. Like other optical solitons, the dissipative Kerr soliton can radiate power in the form of a dispersive wave through a process that is the optical analogue of Cherenkov radiation. Dispersive waves typically consist of an ensemble of optical modes. A limiting case is demonstrated in which the dispersive wave is concentrated into a single cavity mode. In this limit, its interaction with the soliton is shown to induce bistable behavior in the spectral and temporal properties of the soliton. Also, an operating point of enhanced repetition-rate stability is predicted and observed. The single-mode dispersive wave can therefore provide quiet states of soliton comb operation useful in many applications.
description: Xu Yi, Qi-Fan Yang and Xueyue Zhang contributed equally to this work
Gravitational waves or X-ray counterpart ? No need to choose
Creators: name: Mignon-Risse, Raphaël
name: Varniere, Peggy
name: Casse, Fabien
Publisher: name: Zenodo
Year: 2022

description: Binary black holes emit gravitational waves (GWs) as they inspiral towards coalescence. In this study, we investigate the impact of such GWs onto the circumbinary disk around stellar-mass black holes, using general relativistic hydrodynamical simulations and a general relativistic ray-tracing code. We show that, due to the proximity to the binary, pre-merger GWs leave an imprint onto the disk, leading to quasi-periodic patterns in the X-ray lightcurve.
An efficient quantum algorithm for spectral estimation
Creators: name: Steffens, A.
name: Rebentrost, P.
name: Marvian, I.
name: Eisert, J.
name: Lloyd, S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We develop an efficient quantum implementation of an important signal processing algorithm for line spectral estimation: the matrix pencil method, which determines the frequencies and damping factors of signals consisting of finite sums of exponentially damped sinusoids. Our algorithm provides a quantum speedup in a natural regime where the sampling rate is much higher than the number of sinusoid components. Along the way, we develop techniques that are expected to be useful for other quantum algorithms as well - consecutive phase estimations to efficiently make products of asymmetric low rank matrices classically accessible and an alternative method to efficiently exponentiate non-Hermitian matrices. Our algorithm features an efficient quantum-classical division of labor: The time-critical steps are implemented in quantum superposition, while an interjacent step, requiring only exponentially few parameters, can operate classically. We show that frequencies and damping factors can be obtained in time logarithmic in the number of sampling points, exponentially faster than known classical algorithms.
description: 20 pages
Computational Investigation of Microstrip Antennas in Plasma Environment
Creators: name: Vyas, Hardik
name: Chaudhury, Bhaskar
name: Gupta, Sanjeev
Publisher: name: arXiv
Year: 2016
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Microstrip antennas are extensively used in spacecraft systems and other applications where they encounter a plasma environment. A detailed computational investigation of change in antenna radiation properties in the presence of plasma has been presented in this paper. The study shows antenna properties such as the resonant frequency, return loss, radiation properties and the different characteristics of the antenna changes when it is surrounded by plasma. Particular focus of the work is to understand the causes behind these changes by correlating the complex propagation constant in the plasma medium, field distribution on the patch and effective dielectric of the antenna substrate with antenna parameter variations. The study also provides important insights to explore the possibilities of designing tunable microstrip antenna where the substrate can be replaced with plasma and important antenna characteristics can be controlled by varying the plasma density.
description: IEEE AEMC
The mechanism of anchor penetration in coarse stones
Creators: name: Ham, Yeon Sook.
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.
de Sitter Space Decay and Cosmological Constant Relaxation in Unimodular Gravity with Charged Membranes
Creators: name: Kaloper, Nemanja
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: General covariant unimodular gravity frameworks, based on the Henneaux-Teitelboim formulation, are, in disguise, precisely $4$-form field theories corrected with higher dimension operators. In the presence of charged tensional membranes, any de Sitter space in all such theories is unstable and decays. If the fluxes sourced by membranes are mutually incommensurate, de Sitter geometries comprise a very refined discretuum of states. Whenever the $4$-form sector is dominated by terms linear in flux the almost-Minkowski space is the unique long-time attractor. As a result, a tiny cosmological constant is natural in all such frameworks, without appealing to anthropic reasoning.
description: 28 pages, 5 figures; v2: Final version as published in PRD: title changed in journal, added discussion, added labels in a figure, extra references
Theory and simulation of multiphase coexistence in biomolecular mixtures
Creators: name: Jacobs, William M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Biomolecules (q-bio.BM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Biomolecular condensates constitute a newly recognized form of spatial organization in living cells. Although many condensates are believed to form as a result of phase separation, the physicochemical properties that determine the phase behavior of heterogeneous biomolecular mixtures are only beginning to be explored. Theory and simulation provide invaluable tools for probing the relationship between molecular determinants, such as protein and RNA sequences, and the emergence of phase-separated condensates in such complex environments. This review covers recent advances in the prediction and computational design of biomolecular mixtures that phase-separate into many coexisting phases. First, we review efforts to understand the phase behavior of mixtures with hundreds or thousands of species using theoretical models and statistical approaches. We then describe progress in developing analytical theories and coarse-grained simulation models to predict multiphase condensates with the molecular detail required to make contact with biophysical experiments. We conclude by summarizing the challenges ahead for modeling the inhomogeneous spatial organization of biomolecular mixtures in living cells.
An Ultraviolet imager to study bright UV sources
Creators: name: Mathew, Joice
name: Prakash, Ajin
name: Sarpotdar, Mayuresh
name: Sreejith, A. G.
name: Safonova, Margarita
name: Murthy, Jayant
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We have designed and developed a compact ultraviolet imaging payload to fly on a range of possible platforms such as high altitude balloon experiments, cubesats, space missions, etc. The primary science goals are to study the bright UV sources (mag < 10) and also to look for transients in the Near UV (200 - 300 nm) domain. Our first choice is to place this instrument on a spacecraft going to the Moon as part of the Indian entry into Google lunar X-Prize competition. The major constraints for the instrument are, it should be lightweight (< 2Kg), compact (length < 50cm) and cost effective. The instrument is an 80 mm diameter Cassegrain telescope with a field of view of around half a degree designated for UV imaging. In this paper we will discuss about the various science cases that can be performed by having observations with the instrument on different platforms. We will also describe the design, development and the current state of implementation of the instrument. This includes opto-mechanical and electrical design of the instrument. We have adopted an all spherical optical design which would make the system less complex to realize and a cost effective solution compared to other telescope configuration. The structural design has been chosen in such a way that it will ensure that the instrument could withstand all the launch load vibrations. An FPGA based electronics board is used for the data acquisition, processing and CCD control. We will also briefly discuss about the hardware implementation of the detector interface and algorithms for the detector readout and data processing.
description: 7 pages, 4 figures, presented at Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray conference, July 18, 2016 at Edinburgh, UK
Integrating AI, Machine Learning, And IoT In Academic Libraries: Opportunities And Challenges
Creators: name: Mallikarjuna, C
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 461006
subject: Library studies
classificationCode: 461099
subject: Library and information studies not elsewhere classified
classificationCode: 460299
subject: Artificial intelligence not elsewhere classified

description: This article discusses the opportunities and challenges of integrating artificial intelligence (AI), machine learning (ML), and IoT technologies in academic libraries. It highlights the need for libraries to adopt a continuing education approach to AI, integrate AI into their virtual reference process, and proactively explore AI’s potential impact on their services and roles. The article stresses the importance of overcoming resistance to technological change, communicating change efforts, and frequently engaging staff with the technology. Ultimately, AI implementation can enhance library services and streamline operations, but libraries must be aware of the challenges and actively work to overcome them.
Попов А.А., Догданов Д.В., Шорин С.А., Айрапетьянц К.А. Международный опыт государственного финансирования и поддержки сферы культуры // Актуальные вопросы современной экономики. 2022. № 11. С. 631-642.
Creators: name: Shorin, Sergey
Publisher: name: figshare
Year: 2022
Subjects: Economic development policy
Public economics - taxation and revenue
Comparative economic systems
Socio-economic development
Arts and cultural policy
Public administration
Public sector organisation and management

description: Актуальность исследования международного опыта организации управления и осуществления бюджетных расходов в сфере культуры связана с перспективами его применения в российской практике путем заимствования лучших образцов экономических и правовых решений развитых стран. Кроме того, международный опыт бюджетирования становится все более востребованным с развитием в России нового инструмента обеспечения эффективности бюджетных расходов – обзоров бюджетных расходов. Результаты исследования показывают, что совершенствование системы управления бюджетными расходами в России возможно путем нахождения оптимальной доли бюджетных расходов в общем его объеме, подлежащих направлению на финансирование сферы культуры, научно и практически обоснованному выбору основной формы данного финансирования или сочетания его форм в том соотношении, которое обеспечило бы повышение бюджетной эффективности. Дополнительно необходимо активизировать применение помимо бюджетных расходов иные источники финансирования сферы культуры, в том числе банковские гарантии, а также поддержку организаций и граждан, осуществляющих культурную и смежную с ней деятельность, в форме снижения накладываемого на них фискального бремени.
Glassy behaviour of stabilised zirconia alloys
Creators: name: Chen, Yu.
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.
von Neumann measurement-related matrices and the nullity condition for quantum correlation
Creators: name: Zhao, Ming-Jing
name: Ma, Teng
name: Zhang, Ting-Gui
name: Fei, Shao-Ming
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study von Neumann measurement-related matrices, and the nullity condition of quantum correlation. We investigate the properties of these matrices that are related to a von Neumann measurement. It is shown that these (m^2-1)* (m^2-1) matrices are idempotent, and have rank m-1. These properties give rise to necessary conditions for the nullity of quantum correlations in bipartite systems. Finally, as an example we discuss quantum correlation in Bell diagonal states.
Assigning a Small Agreeable Set of Indivisible Items to Multiple Players
Creators: name: Suksompong, Warut
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computer Science and Game Theory (cs.GT)
subject: FOS: Computer and information sciences

description: We consider an assignment problem that has aspects of fair division as well as social choice. In particular, we investigate the problem of assigning a small subset from a set of indivisible items to multiple players so that the chosen subset is \emph{agreeable} to all players, i.e., every player weakly prefers the chosen subset to any subset of its complement. For an arbitrary number of players, we derive tight upper bounds on the size for which a subset of that size that is agreeable to all players always exists when preferences are monotonic. We then present polynomial-time algorithms that find an agreeable subset of approximately half of the items when there are two or three players and preferences are responsive. Our results translate to a 2-approximation on the individual welfare of every player when preferences are subadditive.
description: A preliminary version appeared in Proceedings of the 25th International Joint Conference on Artificial Intelligence (IJCAI), 2016
СОДЕРЖАНИЕ ГЛЮКОЗЫ В КРОВИ ВЫСОКОПРОДУКТИВНЫХ КОРОВ ПО ПЕРИОДАМ ЛАКТАЦИИ И СПОСОБАМ СОДЕРЖАНИЯ КАК КРИТЕРИЙ ОЦЕНКИ ЭНЕРГЕТИЧЕСКОГО ОБМЕНА
Creators: name: Корельская, Лариса
Publisher: name: figshare
Year: 2022
Subjects: Animal nutrition

description: В рамках темы НИР № FMGZ-2022-0003 проводились исследования биохимического состава крови высокопродуктивных лактирующих и сухостойных коров, находящихся на привязном и беспривязном содержании. Постановка научно-хозяйственного опыта осуществлялась на базе сельскохозяйственного предприятия Племзавод-колхоз «Аврора» Грязовецкого района Вологод- ской области. Место исследований включает в себя животноводческий комплекс привязного содержания коров с доением в молокопровод, животноводческий комплекс беспривязного содер- жания коров с доением в доильном зале, животноводческий комплекс беспривязного содержа- ния коров с роботизированным доением. Целью исследований являлось изучение биохимических показателей крови высокопродуктивных коров в разные периоды физиологического цикла при разных способах содержания
Energy Dependence of SEP Electron and Proton Onset Times
Creators: name: Xie, Hong
name: Makela, Pertti
name: Gopalswamy, Nat
name: Cyr, Orville St.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We study the large solar energetic particle (SEP) events that were detected by GOES in the $>$ 10 MeV energy channel during December 2006 to March 2014. We derive and compare solar particle release (SPR) times for the 0.25--10.4 MeV electrons and 10--100 MeV protons for the 28 SEP events. In the study, the electron SPR times are derived with the time-shifting analysis (TSA) and the proton SPR times are derived using both the TSA and the velocity dispersion analysis (VDA). Electron anisotropies are computed to evaluate the amount of scattering for the events under study. Our main results include: 1)near-relativistic electrons and high-energy protons are released at the same time within 8 min for most (16 of 23) SEP events. 2)There exists a good correlation between electron and proton acceleration, peak intensity and intensity time profiles. 3) The TSA SPR times for 90.5 MeV and 57.4 MeV protons have maximum errors of 6 min and 10 min compared to the proton VDA release times, respectively, while the maximum error for 15.4 MeV protons can reach to 32 min. 4) For 7 low-intensity events of the 23, large delays occurred between 6.5 MeV electrons and 90.5 MeV protons relative to 0.5 MeV electrons. Whether these delays are due to times needed for the evolving shock to be strengthened or due to particle transport effects remains unresolved.
Textures and Mechanical Properties of Extruded Mg Alloys Containing Rare-earth Elements
Creators: name: LIU, HUAIYU
Publisher: name: Monash University
Year: 2023
Subjects: Metals and alloy materials

description: Magnesium alloys are appealing materials for their low density and high specific strength. However, conventional Mg alloys tend to form a strong basal texture during the extrusion or post-extrusion annealing process, resulting in low ductility and pronounced tension- compression yield asymmetry at room temperature. It is now well established that additions of rare-earth (RE) elements to Mg can weaken the basal texture and promote the formation of non-basal textures, which improve the ductility and reduce the tension-compression yield asymmetry. This project aims to study the microstructures and mechanical properties of Mg-Mn and Mg-Zr alloys with different RE additions, with a view to understanding the potential for improved ductility and minimised tension-compression yield asymmetry.
Maximally entangled state and fully entangled fraction
Creators: name: Zhao, Ming-Jing
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study maximally entangled states and fully entangled fraction in general d'\otimes d (d'\geq d) systems. Necessary and sufficient conditions for maximally entangled pure and mixed states are presented. As a natural generalization of the usual fully entangled fraction for d\otimes d systems, we define the maximal overlap between a given quantum state and the maximally entangled states as the fully entangled fraction in d'\otimes d systems. The properties of this fully entangled fraction and its relations to quantum teleportation have been analyzed. The witness for detecting maximally entangled states and quantum states that are useful for quantum teleportation is provided.
A Delay-Tolerant Potential-Field-Based Network Implementation of an Integrated Navigation System
Creators: name: Gupta, Rachana Ashok
name: Masoud, Ahmad A.
name: Chow, Mo-Yuen
Publisher: name: arXiv
Year: 2016
Subjects: subject: Robotics (cs.RO)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Network controllers (NCs) are devices that are capable of converting dynamic, spatially extended, and functionally specialized modules into a taskable goal-oriented group called networked control system. This paper examines the practical aspects of designing and building an NC that uses the Internet as a communication medium. It focuses on finding compatible controller components that can be integrated via a host structure in a manner that makes it possible to network, in real-time, a webcam, an unmanned ground vehicle (UGV), and a remote computer server along with the necessary operator software interface. The aim is to deskill the UGV navigation process and yet maintain a robust performance. The structure of the suggested controller, its components, and the manner in which they are interfaced are described. Thorough experimental results along with performance assessment and comparisons to a previously implemented NC are provided.
Parking need determination for facilities with multiple users and bay types
Creators: name: Johnson, Bruce Andrew.
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.
Real-time flood forecasting with RORB/TOPOG model
Creators: name: Mag, Valerie.
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.
ОБОСНОВАНИЕ СТРУКТУРЫ АВТОНОМНОЙ ЭНЕРГОУСТАНОВКИ С НИЗКИМ УРОВНЕМ ВЫБРОСОВ ЗАГРЯЗНЯЮЩИХ ВЕЩЕСТВ И ОТСУТСТВИЕМ ШУМОВОГО ЗАГРЯЗНЕНИЯ ОКРУЖАЮЩЕЙ СРЕДЫ
Creators: name: СУДАЧЕНКО В.Н.
name: ЭРК А.Ф.
name: ТИМОФЕЕВ Е.В.
name: РАЗМУК В.А.
name: ЕФИМОВА А.Н.
Publisher: name: Технологии и технические средства механизированного производства продукции растениеводства и животноводства
Year: 2020
Subjects: ЭНЕРГОУСТАНОВКА
ФЕРМЕРСКОЕ ХОЗЯЙСТВО
ЭЛЕКТРОЭНЕРГИЯ
ТЕПЛО
ШУМОВОЕ ЗАГРЯЗНЕНИЕ
УДЕЛЬНЫЕ ВЫБРОСЫ
ЗАГРЯЗНЯЮЩЕЕ ВЕЩЕСТВО
СОЛНЕЧНАЯ ПАНЕЛЬ

description: По результатам энергетических обследований фермерских (крестьянских) хозяйств Ленинградской области, не имеющих централизованного электрои теплоснабжения, и анализа программ энергосбережения субъектов Российской Федерации на Северо-Западе страны установлено, что для получения электроэнергии такие сельхозпредприятия используют дизельные электростанции малой мощности (2-5 кВт), а для получения тепловой энергии печные установки на различных видах твердого и жидкого топлива. Шум работающей дизельной электростанции, выхлопные газы и дымовые газы теплогенерирующих установок могут отрицательно влиять на пчел, сельскохозяйственных животных и птицу. Не исключен разлив топлива, что приводит к загрязнению почвы и водоемов. Целью данной работы является обоснование методов и технических решений снижения уровня шумового загрязнения и выбросов в атмосферу загрязняющих веществ при работе автономных энергогенерирующих установок малой мощности. В фермерских (крестьянских) хозяйствах в настоящее время имеется семь структурных схем построения автономных энергоустановок. Проведена оценка уровня экологической нагрузки, включая шумовое загрязнение, фермерского (крестьянского) хозяйства при организации системы автономного энергоснабжения по всем установленным структурным схемам. Самый низкий уровень выбросов загрязняющих веществ имеют энергоустановки с газогенераторными электростанциями на дровах и топливных гранулах, но уровень шумового загрязнения газопоршневых двигателей этих энергоустановок сравним с дизельными электростанциями. Полученные данные удельных выбросов загрязняющих веществ и уровня шумового загрязнения воздушной среды явились основанием разработки структурной схемы автономной энергоустановки с низким уровнем выбросов загрязняющих веществ и отсутствием шумового загрязнения окружающей среды. В состав предложенной структурной схемы автономной энергоустановки входят солнечные панели и твердотопливная печь с термоэлектрическим генератором, работа которого построена на эффекте Зеебека.
ОЦЕНКА ВЛИЯНИЯ ФАКТОРОВ СВЕТОВОЙ СРЕДЫ НА ЭФФЕКТИВНОСТЬ ВЫРАЩИВАНИЯ РАССАДЫ ТОМАТА
Creators: name: МАРКОВА А.Е.
name: МИШАНОВ А.П.
name: РАКУТЬКО Е.Н.
name: РАКУТЬКО С.А.
Publisher: name: Технологии и технические средства механизированного производства продукции растениеводства и животноводства
Year: 2020
Subjects: СВЕТОКУЛЬТУРА
ЭНЕРГОЭКОЛОГИЯ
СПЕКТР
ФОТОПЕРИОД
ОБЛУЧЕННОСТЬ
ФОТОСИНТЕЗ
БИОХИМИЧЕСКИЙ СОСТАВ

description: В статье рассмотрены результаты исследований выращивания рассады томата Благовест F1 при различных уровнях фотонной облученности (Е): 240, 170 и 100 мкМ∙м-2∙с-1, и фотопериодах (Т): 12, 16 и 22 ч под облучателями с различным спектральным составом. Выращивание проводили в условиях полного отсутствия естественного облучения. В качестве источников облучения применяли люминесцентные лампы марки OSRAM L58W/840 (Cool White) и OSRAM L58W/77 Fluora (облучатель №1) с процентным соотношением цветов в поддиапазонах спектра: синий (КB), зеленый(КG), красный (КR) КB:КG:КR =31:35:34, а также облучатель с добавлением синих светодиодных излучателей марки ARPL-Star-3W (BLUE) с длиной волны излучения 440 нм (облучатель №2) с КB:КG:КR=39:31:30. Выращивание растений проводили на лабораторной многоярусной культивационной установке, позволяющей одновременно создавать различные уровни облученности. Наиболее эффективное использование фотонной энергии наблюдали в вариантах выращивания при Е=170 мкМ∙м-2∙с-1 и Т=12 ч для обоих облучателей. При этих параметрах растения соответствовали требованиям, предъявляемым к рассаде на 39-й день после появления всходов. Фотонная энергоемкость создания сухого вещества для облучателя №1 варьировалась в пределах 1,35 1,79 М∙г-1 при изменении Е от 100 до 240 мкМ∙м-2∙с-1. Для облучателя №2 эти значения находились в диапазоне 1,52 1,88 М∙г-1. Увеличение фотопериода до 22 ч привело к резкому снижению выхода сухого вещества у растений, выращенных под обоими облучателями, что привело к увеличению фотонной энергоемкости до 16,6 М∙г-1 для облучателя №1 и до 23,3 М∙г-1 для облучателя №2. Увеличение доли в синем поддиапазоне спектра до 39% относительно спектрального соотношения КB:КG:КR=31:35:34 не вызвало заметных изменений в росте и развитии растений, что свидетельствует о возможности применения данных соотношений в спектральном составе источников облучения при выращивании рассады томата.
Quenched large deviations for interacting diffusions in random media
Creators: name: Luçon, Eric
Publisher: name: arXiv
Year: 2016
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 60F10, 60K35, 82B44

description: The aim of the paper is to establish a large deviation principle (LDP) for the empirical measure of mean-field interacting diffusions in a random environment. The point is to derive such a result once the environment has been frozen (quenched model). The main theorem states that a LDP holds for every realization of the environment, with a rate function that does not depend on the disorder and is different from the rate function in the averaged model. Similar results concerning the empirical flow and local empirical measures are provided.
description: 34 pages
ВЛИЯНИЕ РАЗЛИЧИЙ В СПЕКТРАЛЬНОМ СОСТАВЕ ИЗЛУЧЕНИЯ НА ФЛУКТУИРУЮЩУЮ АСИММЕТРИЮ БИЛАТЕРАЛЬНЫХ ПРИЗНАКОВ ЮВЕНИЛЬНЫХ РАСТЕНИЙ ПЕРЦА (CAPSICUM ANNUUM L.)
Creators: name: РАКУТЬКО Е.Н.
name: ВАСЬКИН А.Н.
name: НОВИКОВ И.С.
name: РАКУТЬКО С.А.
Publisher: name: Технологии и технические средства механизированного производства продукции растениеводства и животноводства
Year: 2020
Subjects: СВЕТОКУЛЬТУРА
СПЕКТР
ПЕРЕЦ
ЮВЕНИЛЬНАЯ ФАЗА
СТАБИЛЬНОСТЬ РАЗВИТИЯ
БИЛАТЕРАЛЬНЫЙ ПРИЗНАК
ФЛУКТУИРУЮЩАЯ АСИММЕТРИЯ

description: Обоснована целесообразность оценки качества облучения растений по флуктуирующей асимметрии билатеральных (зеркальных) признаков, характеризующей общую стабильность их развития. Обзор результатов исследований взаимосвязи параметров световой среды со стабильностью развития отдельных видов растений показал, что у растений в условиях более благоприятной световой среды наблюдаются меньшие значения флуктуирующей асимметрии. Цель исследования подтверждение гипотезы о влиянии различий в спектральном составе излучения на уровень флуктуирующей асимметрии для растений перца (Capsicum Annuum L.). Использовали растения перца в момент появления второй пары настоящих листьев, т.е. в ювенильном возрастном состоянии, на 14-е сутки после появления всходов. Растения выращивали под источниками с тремя различными спектрами излучения. В качестве биометрических показателей фиксировали сырую массу растений и содержание в нем сухого вещества. В качестве билатеральных признаков фиксировали длины листьев первой пары и их оптические плотности в синем, зеленом и красном диапазонах. Выявлено наличие флуктуирующей асимметрии длин первой пары настоящих листьев и их оптических плотностей. Меньшим значениям флуктуирующей асимметрии, т.е. большей стабильности развития растения, соответствовала большая продуктивность по сырой массе растений. При увеличении соотношения красного к синему излучению в 2,2 раза величина флуктуирующей асимметрии уменьшилась на 22-45%, в зависимости от диапазона, в котором определялась оптическая плотность листа. При этом наблюдалось увеличение массы растения на 26,2%. На примере растений перца экспериментально доказано, что показатели флуктуирующей асимметрии могут быть использованы для оценки качества световой среды выращивания растений.
Финансово—экономический журнал,Выпуск 16МКАП 2022
Creators: name: ООО "Институт развития образования и консалтинга"
Publisher: name: ООО "Институт развития образования и консалтинга"
Year: 2022

description: Финансово—экономический журнал,Выпуск 16МКАП 2022
Reversed radial distribution trend of subpopulations in the globular clusters NGC 362 and NGC 6723
Creators: name: Lim, Dongwook
name: Lee, Young-Wook
name: Pasquato, Mario
name: Han, Sang-Il
name: Roh, Dong-Goo
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Most globular clusters (GCs) are now known to host multiple stellar populations with different light element abundances. Here we use narrow-band photometry and low-resolution spectroscopy for NGC 362 and NGC 6723 to investigate their chemical properties and radial distributions of subpopulations. We confirm that NGC 362 and NGC 6723 are among the GCs with multiple populations showing bimodal CN distribution and CN-CH anti-correlation without a significant spread in calcium abundance. These two GCs show more centrally concentrated CN-weak earlier generation stars compared to the later generation CN-strong stars. These trends are reversed with respect to those found in previous studies for many other GCs. Our findings, therefore, seem contradictory to the current scenario for the formation of multiple stellar populations, but mass segregation acting on the two subpopulations might be a possible solution to explain this reversed radial trend.
description: 12 pages, 8 figures, 2 tables, accepted for publication in ApJ
Compatibility and Timing Attacks for JPEG Steganalysis
Creators: name: Levecque, Etienne
name: Bas, Patrick
name: Butora, Jan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: This paper introduces a novel compatibility attack to detect a steganographic message embedded in the DCT domain of a JPEG image at high-quality factors (close to 100). Because the JPEG compression is not a surjective function, i.e. not every DCT blocks can be mapped from a pixel block, embedding a message in the DCT domain can create incompatible blocks. We propose a method to find such a block, which directly proves that a block has been modified during the embedding. This theoretical method provides many advantages such as being completely independent to Cover Source Mismatch, having good detection power, and perfect reliability since false alarms are impossible as soon as incompatible blocks are found. We show that finding an incompatible block is equivalent to proving the infeasibility of an Integer Linear Programming problem. However, solving such a problem requires considerable computational power and has not been reached for 8x8 blocks. Instead, a timing attack approach is presented to perform steganalysis without potentially any false alarms for large computing power.
description: Workshop on Information Hiding and Multimedia Security, ACM, Jun 2023, Chicago, United States
ОПТИМИЗАЦИЯ ПАРАМЕТРОВ ПОЧВООБРАБАТЫВАЮЩЕГО АГРЕГАТА
Creators: name: ВАЛГЕ А.М.
Publisher: name: Технологии и технические средства механизированного производства продукции растениеводства и животноводства
Year: 2020
Subjects: ПАХОТНЫЙ АГРЕГАТ
МОЩНОСТЬ
СИЛА ТЯГИ
РАЦИОНАЛЬНАЯ ФОРМУЛА
МАТЕМАТИЧЕСКАЯ МОДЕЛЬ
ОПТИМИЗАЦИЯ

description: В статье представлен метод построения и анализа энергетической модели пахотного агрегата. На основе рациональной формулы Горячкина В.П. разработан метод анализа влияния основных факторов: скорости движения и произведения ширины захвата на глубину обработки на силу тяги и тяговую мощность трактора. На основе метода наименьших квадратов предложен метод обработки экспериментальных данных для определения коэффициентов рациональной формулы. По экспериментальным данным зависимости тягового усилия от скоростей движения пахотного агрегата и произведений ширины захвата на глубину обработки, определены коэффициенты рациональной формулы Горячкина В.П. На основании рациональной формулы получены выражения для расчёта мощности трактора и производительности пахотного агрегата, по которым выполнен анализ влияния факторов, скорости движения и произведения ширины захвата на глубину обработки на силу тяги трактора, развиваемую мощность и производительность пахотного агрегата. Разработана математическая модель оптимизации параметров пахотного агрегата по определению максимальной его производительности при постоянной (заданной) мощности трактора. Решение оптимизационной задачи показало, что при постоянной мощности трактора увеличение производительности пахотного агрегата достигается только с увеличением ширины захвата агрегата, при этом происходит снижение скорости движения и увеличение тягового сопротивления.
Street lighting policy for local authorities
Creators: name: Cusmano, Joseph M. .
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.
Undercover EUV Solar Jets Observed by the Interface Region Imaging Spectrograph
Creators: name: Chen, N. -H.
name: Innes, D. E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: It is well-known that extreme ultraviolet emission emitted at the solar surface is absorbed by overlying cool plasma. Especially in active regions dark lanes in EUV images suggest that much of the surface activity is obscured. Simultaneous observations from IRIS, consisting of UV spectra and slit-jaw images give vital information with sub-arcsecond spatial resolution on the dynamics of jets not seen in EUV images. We studied a series of small jets from recently formed bipole pairs beside the trailing spot of active region 11991, which occurred on 2014 March 5 from 15:02:21 UT to 17:04:07 UT. There were collimated outflows with bright roots in the SJI 1400 Å (transition region) and 2796 Å (upper chromosphere) that were mostly not seen in AIA 304 Å (transition region) and AIA 171 Å (lower corona) images. The Si IV spectra show strong blue-wing but no red-wing enhancements in the line profiles of the ejecta for all recurrent jets indicating outward flows without twists. We see two types of Mg II line profiles produced by the jets spires: reversed and non-reversed. Mg II lines remain optically thick but turn into optically thin in the highly Doppler shifted wings.The energy flux contained in each recurrent jet is estimated using a velocity differential emission measure technique which measures the emitting power of the plasma as a function of line-of-sight velocity. We found that all the recurrent jets release similar energy (10$^8$ erg cm$^{-2}$ s$^{-1}$ ) toward the corona and the downward component is less than 3\%.
description: Accepted for publication in ApJ, 6 fiugres
РЕЗУЛЬТАТЫ ЭКСПЕРИМЕНТАЛЬНЫХ ИССЛЕДОВАНИЙ ПОЧВООБРАБАТЫВАЮЩЕГО АГРЕГАТА УКПА-2,4 С КОЛЬЦЕВЫМИ РАБОЧИМИ ОРГАНАМИ
Creators: name: ШАМОНИН В.И.
name: ДЖАББОРОВ Н.И.
Publisher: name: Технологии и технические средства механизированного производства продукции растениеводства и животноводства
Year: 2020
Subjects: ЗАЛЕЖНЫЕ ЗЕМЛИ
ТЕХНОЛОГИЯ ВОССТАНОВЛЕНИЯ
ПОВЫШЕННОЕ УВЛАЖНЕНИЕ
ПОЧВООБРАБАТЫВАЮЩИЙ АГРЕГАТ
КОЛЬЦЕВОЙ РАБОЧИЙ ОРГАН
КОНСТРУКТИВНЫЙ ПАРАМЕТР
КАЧЕСТВО РАБОТЫ

description: Для первичного восстановления залежных земель в Российской Федерации разрабатываются и обосновываются зональные технологии и технические средства, отвечающие перспективным показателям и критериям их оценки. В Институте агроинженерных и экологических проблем сельскохозяйственного производства филиале ФГБНУ ФНАЦ ВИМ проводятся исследования, связанные с технологиями и техническими средствами с новыми рабочими органами для первичного восстановления залежных земель в Северо-Западном регионе РФ зоне повышенного увлажнения. Цель представленного исследования проверка работоспособности и оценка показателей качества работы применяемого для этого почвообрабатывающего агрегата блочно-модульного типа УКПА-2,4 с кольцевыми рабочими органами в полевых условиях. Предметом исследования были технологические и конструктивные параметры агрегата, показатели качества выполнения технологического процесса. Научная новизна состояла в оценке конструктивно-технологических параметров, работоспособности и эффективности УКПА-2,4 с кольцевыми рабочими органами. Результаты экспериментальных исследований показали, что агрегат с кольцевыми рабочими органами обеспечивает требуемое качество первичной обработки залежных земель; разуплотнение дернины без оборота пласта на глубину до 10 см; сепарацию верхнего слоя почвы, т.е. поверхностное рыхление с отделением сорных растений и их корневищ от почвы, и вычесывание (выдергивание) с поверхности поля сорных растений; дискование почвы при снятом кольце; выравнивание поля после обработки. Использование агрегата с кольцевыми рабочими органами позволяет повысить степень рыхления почвы до 84% и степень уничтожения сорняков до 98%, a также выровнять поверхность поля.