cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The evolution of Balmer jump selected galaxies in the ALHAMBRA survey
Creators: name: Iribarren, P. Troncoso
name: Infante, L.
name: Padilla, N.
name: Lacerna, I.
name: Garcia, S.
name: Orsi, A.
name: Arancibia, A. Muñoz
name: Moustakas, J.
name: Cristóbal-Hornillos, J.
name: Moles, M.
name: Fernández-Soto, A.
name: Martínez, V. J.
name: Cerviño, M.
name: Alfaro, E. J.
name: Ascaso, B.
name: Arnalte-Mur, P.
name: Nieves-Seoane, L.
name: Benítez, N.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a new color-selection technique, based on the Bruzual & Charlot models convolved with the bands of the ALHAMBRA survey, and the redshifted position of the Balmer jump to select star-forming galaxies in the redshift range 0.5 < z < 1.5. These galaxies are dubbed Balmer jump Galaxies BJGs. We apply the iSEDfit Bayesian approach to fit each detailed SED and determine star-formation rate (SFR), stellar mass, age and absolute magnitudes. The mass of the haloes where these samples reside are found via a clustering analysis. Five volume-limited BJG sub-samples with different mean redshifts are found to reside in haloes of median masses $\sim 10^{12.5 \pm 0.2} M_\odot$ slightly increasing toward z=0.5. This increment is similar to numerical simulations results which suggests that we are tracing the evolution of an evolving population of haloes as they grow to reach a mass of $\sim 10^{12.7 \pm 0.1} M_\odot$ at z=0.5. The likely progenitors of our samples at z$\sim$3 are Lyman Break Galaxies, which at z$\sim$2 would evolve into star-forming BzK galaxies, and their descendants in the local Universe are elliptical galaxies.Hence, this allows us to follow the putative evolution of the SFR, stellar mass and age of these galaxies. From z$\sim$1.0 to z$\sim$0.5, the stellar mass of the volume limited BJG samples nearly does not change with redshift, suggesting that major mergers play a minor role on the evolution of these galaxies. The SFR evolution accounts for the small variations of stellar mass, suggesting that star formation and possible minor mergers are the main channels of mass assembly.
description: 14 pages, 10 figures. Submitted to A&A. It includes first referee's comments. Abstract abridged due to arXiv requirements
Revisiting stress-corrosion cracking and hydrogen embrittlement in 7xxx-Al alloys at the near-atomic-scale
Creators: name: Freixes, Martí López
name: Zhou, Xuyang
name: Zhao, Huan
name: Godin, Hélène
name: Peguet, Lionel
name: Warner, Timothy
name: Gault, Baptiste
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Hydrogen embrittlement (HE) affects all major high-strength structural materials and as such is a major impediment to lightweighting e.g. vehicles and help reduce carbon-emissions and reach net-zero. The high-strength 7xxx series aluminium alloys can fulfil the need for light, high strength materials, and are already extensively used in aerospace for weight reduction purposes. However, depending on the thermomechanical and loading state, these alloys can be sensitive to stress-corrosion cracking (SCC) through anodic dissolution and hydrogen embrittlement. Here, we study at the near-atomic-scale the intra- and inter-granular microstructure ahead and in the wake of a propagating SCC crack. Moving away from model cases not strictly relevant to application, we performed an industry-standard test on an engineering Al-7XXX alloy. H is found segregated to planar arrays of dislocations and to grain boundaries that we can associate to the combined effects of hydrogen-enhanced localized plasticity (HELP) and hydrogen-enhanced decohesion (HEDE) mechanisms. We report on a Mg-rich H-rich amorphous oxide on the corroded crack surface and evidence of Mg-related diffusional processes leading to dissolution of the strengthening eta-phase precipitates ahead of the crack. We show ingress of up to 1 at% O, i.e. well above the solubility limit of O in Al, near the oxide-metal interface, while no increased level of H is found in the matrix. We provide an array of discussion points relative to the interplay of structural defects, transport of solutes, thereby changing the resistance against crack propagation, which have been overlooked across the SCC literature and prevent accurate service life predictions.
Data stream mining for predicting software build outcomes using source code metrics
Creators: name: Finlay, Jacqui
name: Pears, Russel
name: Connor, Andy M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Software development projects involve the use of a wide range of tools to produce a software artifact. Software repositories such as source control systems have become a focus for emergent research because they are a source of rich information regarding software development projects. The mining of such repositories is becoming increasingly common with a view to gaining a deeper understanding of the development process.
Alpha states demystified: Towards microscopic models of AdS$_2$ holography
Creators: name: Blommaert, Andreas
name: Iliesiu, Luca V.
name: Kruthoff, Jorrit
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We continue our study of factorizing theories of dilaton gravity, characterized by a universal bilocal interaction. All such factorizing theories can be shown to have discrete spectra, distinguished only by their local dilaton potentials. We show how such theories can be used to construct all alpha-states in the Hilbert space of baby universes of ordinary JT gravity. Large classes of these theories with different local potentials are found to be non-perturbatively equivalent and have identical discrete spectra. This is a concrete example of how different bulk descriptions can give rise to the same boundary theory. Such equivalences manifest themselves as null states, which have to be quotiented out in order to construct a proper baby universe Hilbert space. Our results also allow us to revisit the mechanism discussed by Coleman, Giddings, and Strominger, and concretely link ensemble averaging to the appearance or disappearance of spacetime wormholes. We then investigate JT gravity deformed only by the universal bilocal interaction. In this theory, the only terms that do not cancel in a topological expansion are disks, which capture perturbative fluctuations around a two-dimensional black hole saddle. We find that this theory of black holes has an evenly spaced spectrum, instead of a quantum chaotic one. We present a dual quantum mechanical system with exactly the same discrete spectrum, and propose that this is an example of a new holographic duality between a two-dimensional theory of quantum gravity and a conventional quantum mechanics.
description: 46 pages, 6 figures
Final state observability estimates and cost-uniform approximate null-controllability for bi-continuous semigroups
Creators: name: Kruse, Karsten
name: Seifert, Christian
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optimization and Control (math.OC)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: Primary 93C20, 93C25, 47N70, Secondary 47D06, 46A70

description: We consider final state observability estimates for bi-continuous semigroups on Banach spaces, i.e. for every initial value, estimating the state at a final time $T>0$ by taking into account the orbit of the initial value under the semigroup for $t\in [0,T]$, measured in a suitable norm. We state a sufficient criterion based on an uncertainty relation and a dissipation estimate and provide two examples of bi-continuous semigroups which share a final state observability estimate, namely the Gauss-Weierstrass semigroup and the Ornstein-Uhlenbeck semigroup on the space of bounded continuous functions. Moreover, we generalise the duality between cost-uniform approximate null-controllability and final state observability estimates to the setting of locally convex spaces for the case of bounded and continuous control functions, which seems to be new even for the Banach spaces case.
Collaborative Bimanual Manipulation Using Optimal Motion Adaptation and Interaction Control
Creators: name: Wen, Ruoshi
name: Rouxel, Quentin
name: Mistry, Michael
name: Li, Zhibin
name: Tiseo, Carlo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: This work developed collaborative bimanual manipulation for reliable and safe human-robot collaboration, which allows remote and local human operators to work interactively for bimanual tasks. We proposed an optimal motion adaptation to retarget arbitrary commands from multiple human operators into feasible control references. The collaborative manipulation framework has three main modules: (1) contact force modulation for compliant physical interactions with objects via admittance control; (2) task-space sequential equilibrium and inverse kinematics optimization, which adapts interactive commands from multiple operators to feasible motions by satisfying the task constraints and physical limits of the robots; and (3) an interaction controller adopted from the fractal impedance control, which is robust to time delay and stable to superimpose multiple control efforts for generating desired joint torques and controlling the dual-arm robots. Extensive experiments demonstrated the capability of the collaborative bimanual framework, including (1) dual-arm teleoperation that adapts arbitrary infeasible commands that violate joint torque limits into continuous operations within safe boundaries, compared to failures without the proposed optimization; (2) robust maneuver of a stack of objects via physical interactions in presence of model inaccuracy; (3) collaborative multi-operator part assembly, and teleoperated industrial connector insertion, which validate the guaranteed stability of reliable human-robot co-manipulation.
description: in IEEE Robotics & Automation Magazine, 2023
Undergraduate training in developmental disabilities of Malaysian medical practitioners
Creators: name: Moyle., Judith
Publisher: name: Monash University
Year: 2021

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.
A note on the Lumer--Phillips theorem for bi-continuous semigroups
Creators: name: Kruse, Karsten
name: Seifert, Christian
Publisher: name: arXiv
Year: 2022
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: Primary 47B44 Secondary 47D06, 46A70

description: Given a Banach space $X$ and an additional coarser Hausdorff locally convex topology $τ$ on $X$ we characterise the generators of $τ$-bi-continuous semigroups in the spirit of the Lumer--Phillips theorem, i.e. by means of dissipativity w.r.t.~a directed system of seminorms and a range condition.
The ALMA REBELS Survey: Specific Star-Formation Rates in the Reionization Era
Creators: name: Topping, Michael W.
name: Stark, Daniel P.
name: Endsley, Ryan
name: Bouwens, Rychard J.
name: Schouws, Sander
name: Smit, Renske
name: Stefanon, Mauro
name: Inami, Hanae
name: Bowler, Rebecca A. A.
name: Oesch, Pascal
name: Gonzalez, Valentino
name: Dayal, Pratika
name: da Cunha, Elisabete
name: Algera, Hiddo
name: van der Werf, Paul
name: Pallottini, Andrea
name: De Soto, Laia Barrufet
name: Schneider, Raffaella
name: De Looze, Ilse
name: Sommovigo, Laura
name: Whitler, Lily
name: Graziani, Luca
name: Fudamoto, Yoshinobu
name: Ferrara, Andrea
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present specific star-formation rates for 40 UV-bright galaxies at $z\sim7-8$ observed as part of the Reionization Era Bright Emission Line Survey (REBELS) ALMA large program. The sSFRs are derived using improved measures of SFR and stellar masses, made possible by measurements of far-infrared (FIR) continuum emission and [CII]-based spectroscopic redshifts. For each source in the sample, we derive stellar masses from SED fitting and total SFRs from calibrations of the UV and FIR emission. The median sSFR is $18_{-5}^{+7}$ Gyr$^{-1}$, significantly larger than literature measurements lacking constraints in the FIR. The increase in sSFR reflects the larger obscured SFRs we derive from the dust continuum relative to that implied by the UV+optical SED. We suggest that such differences may reflect spatial variations in dust across these luminous galaxies, with the component dominating the FIR distinct from that dominating the UV. We demonstrate that the inferred stellar masses (and hence sSFRs) are strongly-dependent on the assumed star formation history (SFH) in reionization-era galaxies. When large sSFR galaxies are modeled with non-parametric SFHs, the derived stellar masses can increase by an order of magnitude relative to constant star formation models, owing to the presence of a significant old stellar population that is outshined by the recent burst. The [CII] line widths in the largest sSFR systems are often very broad, suggesting dynamical masses that are easily able to accommodate the dominant old stellar population suggested by non-parametric models. Regardless of these systematic uncertainties in the derived parameters, we find that the sSFR increases rapidly toward higher redshifts for massive galaxies ($9.6<\log(\rm M_*/M_{\odot})<9.8$), with a power law that goes as $(1+z)^{1.7\pm0.3}$, broadly consistent with expectations from the evolving baryon accretion rates.
description: 18 pages, 10 figures, submitted to MNRAS
Fast Deep Autoencoder for Federated learning
Creators: name: Novoa-Paradela, David
name: Romero-Fontenla, Oscar
name: Guijarro-Berdiñas, Bertha
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: This paper presents a novel, fast and privacy preserving implementation of deep autoencoders. DAEF (Deep Autoencoder for Federated learning), unlike traditional neural networks, trains a deep autoencoder network in a non-iterative way, which drastically reduces its training time. Its training can be carried out in a distributed way (several partitions of the dataset in parallel) and incrementally (aggregation of partial models), and due to its mathematical formulation, the data that is exchanged does not endanger the privacy of the users. This makes DAEF a valid method for edge computing and federated learning scenarios. The method has been evaluated and compared to traditional (iterative) deep autoencoders using seven real anomaly detection datasets, and their performance have been shown to be similar despite DAEF's faster training.
РОЛЬ ПРЯМЫХ ИНОСТРАННЫХ ИНВЕСТИЦИЙ В РАЗВИТИИ НАЦИОНАЛЬНЫХ ЭКОНОМИК
Creators: name: АРТЕМКИНА Л.Р.
Publisher: name: Инновации и инвестиции
Year: 2020
Subjects: ИНВЕСТИЦИИ
ИНВЕСТИЦИОННАЯ СТРАТЕГИЯ
ФАКТОРЫ ИНОСТРАННОГО ИНВЕСТИРОВАНИЯ
ПРЯМЫЕ ИНОСТРАННЫЕ ИНВЕСТИЦИИ
НЕФТЕГАЗОВЫЕ КОМПАНИИ
INVESTMENTS
INVESTMENT STRATEGY
FACTORS OF FOREIGN INVESTMENT
FOREIGN DIRECT INVESTMENT
OIL AND GAS COMPANIES

description: В статье определяется понятие инвестирования, инвестиционной деятельности, рассматриваются основные виды инвестирования. Показано, что инвестиции делятся по видам инвестиций: по объекту инвестирования, основным целям инвестирования, форме собственности на инновационные ресурсы, сроку инвестирования. Также автором в работе рассматриваются факторы и причины иностранного инвестирования. Выдвигается мнение, согласно которому, факторы, влияющие на отток и приток капитала, в большинстве случае, совпадают, что приводит к взаимным инвестициям. Кроме того, ключевая доля прямых иностранных инвестиций приходится на развитые страны, которые осуществляются методом перекрестного инвестирования. Так, к ключевым прямым иностранным инвесторам можно отнести развитые страны, такие как: США, Япония, Германия, Великобритания, а также страны, относящиеся к развивающимся странам, такие как: Сингапур, Республика Корея, Саудовская Аравия, ОАЭ и др. В исследовании оцениваются положительные и отрицательные последствия иностранных инвестиций.
Novel phases in rotating Bose-condensed gas: vortices and quantum correlation
Creators: name: Imran, Mohd.
name: Ahsan, M. A. H.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We present the exact diagonalization study of rotating Bose-condensed gas interacting via finite-range Gaussian potential confined in a quasi-2D harmonic trap. The system of many-body Hamiltonian matrix is diagonalized in given subspaces of quantized total angular momentum to obtain the lowest-energy eigenstate employing the beyond lowest-Landau-level approximation. In the co-rotating frame, the quantum mechanical stability of angular momentum states is discussed for the existence of phase transition between the stable states of interacting system. Thereby analyzing the von Neumann entanglement entropy and degree of condensation provide the information about quantum phase correlation in the many-body states. Calculating the conditional probability distribution, we further probe the internal structure of quantum mechanically stable and unstable states. Much emphasis is put on finding the spatial correlation of bosonic atoms in the rotating system for the formation and entry of singly quantized vortices, and then organizing into canonical polygons with and without a central vortex at the trap center. Results are summarized in the form of a movie depicting the vortex patterns having discrete p-fold rotational symmetry with $p = 2,3,4,5,6$.
description: Updated version with 12 pages and 25 figures. This paper is dedicated to the memory of Professor M. Rafat (JMI), deceased on January 09, 2021, at the age of 65
ν-Flows: Conditional Neutrino Regression
Creators: name: Leigh, Matthew
name: Raine, John Andrew
name: Zoch, Knut
name: Golling, Tobias
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Machine Learning (cs.LG)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We present $ν$-Flows, a novel method for restricting the likelihood space of neutrino kinematics in high energy collider experiments using conditional normalizing flows and deep invertible neural networks. This method allows the recovery of the full neutrino momentum which is usually left as a free parameter and permits one to sample neutrino values under a learned conditional likelihood given event observations. We demonstrate the success of $ν$-Flows in a case study by applying it to simulated semileptonic $t\bar{t}$ events and show that it can lead to more accurate momentum reconstruction, particularly of the longitudinal coordinate. We also show that this has direct benefits in a downstream task of jet association, leading to an improvement of up to a factor of 1.41 compared to conventional methods.
description: 26 pages, 15 figures
РЕГИОНАЛЬНЫЕ РЫНКИ ГАЗА. СРАВНИТЕЛЬНЫЙ АНАЛИЗ
Creators: name: ПОЛАЕВА Г.Б.
name: КОПЫТИН И.А.
Publisher: name: Инновации и инвестиции
Year: 2020
Subjects: РЕГИОНАЛЬНЫЕ РЫНКИ ГАЗА
ЭКСПОРТЕРЫ И ИМПОРТЕРЫ ГАЗА
ЭНЕРГОБАЛАНС
ДОБЫЧА И ПОТРЕБЛЕНИЕ ГАЗА
ПРОИЗВОДИТЕЛИ И ПОСТАВЩИКИ ГАЗА
ЭНЕРГЕТИЧЕСКАЯ ИНТЕГРАЦИЯ
REGIONAL GAS MARKETS
GAS EXPORTERS AND IMPORTERS
ENERGY BALANCE
GAS PRODUCTION AND CONSUMPTION
GAS PRODUCERS AND SUPPLIERS
ENERGY INTEGRATION

description: На основе экспертных оценок и данных официальной статистики выявлено, что общий мировой рынок газа еще не сформирован. Он разбит на следующие региональные рынки: рынок Северной Америки (НАФТА), рынок ЕС, рынок АТР, формирующийся рынок ЕАЭС. Авторами дана характеристика каждого из представленных рынков, дан анализ их основных показателей, выявлены их особенности, вызовы и риски. В статье определены условия, необходимые для формирования общего рынка газа
Intrinsic noise profoundly alters the dynamics and steady state of morphogen-controlled bistable genetic switches
Creators: name: Perez-Carrasco, Ruben
name: Guerrero, Pilar
name: Briscoe, James
name: Page, Karen
Publisher: name: arXiv
Year: 2016
Subjects: subject: Molecular Networks (q-bio.MN)
subject: FOS: Biological sciences

description: During tissue development, patterns of gene expression determine the spatial arrangement of cell types. In many cases, gradients of secreted signaling molecules - morphogens - guide this process. The continuous positional information provided by the gradient is converted into discrete cell types by the downstream transcriptional network that responds to the morphogen. A mechanism commonly used to implement a sharp transition between two adjacent cell fates is the genetic toggle switch, composed of cross-repressing transcriptional determinants. Previous analyses emphasize the steady state output of these mechanisms. Here, we explore the dynamics of the toggle switch and use exact numerical simulations of the kinetic reactions, the Chemical Langevin Equation, and Minimum Action Path theory to establish a framework for studying the effect of gene expression noise on patterning time and boundary position. This provides insight into the time scale, gene expression trajectories and directionality of stochastic switching events between cell states. Taking gene expression noise into account predicts that the final boundary position of a morphogen-induced toggle switch, although robust to changes in the details of the noise, is distinct from that of the deterministic system. Moreover, stochastic switching introduces differences in patterning time along the morphogen gradient that result in a patterning wave propagating away from the morphogen source. The velocity of this wave is influenced by noise; the wave sharpens and slows as it advances and may never reach steady state in a biologically relevant time. This could explain experimentally observed dynamics of pattern formation. Together the analysis reveals the importance of dynamical transients for understanding morphogen-driven transcriptional networks and indicates that gene expression noise can qualitatively alter developmental patterning.
The Scale of New Physics from the Higgs Couplings to gg
Creators: name: Abu-Ajamieh, Fayez
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Measuring the Higgs couplings accurately at colliders is one of the best routes for finding physics Beyond the Standard Model (BSM). If the measured couplings deviate from the SM predictions, then this would give rise to energy-growing processes that violate tree-level unitarity at some energy scale, indicating new physics. In this paper, we extend previous work on unitarity bounds from the Higgs potential and the Higgs couplings to vector bosons, the top quark, $γγ$ and $γZ$; to the Higgs coupling to gg. We show that the scale of new physics could be as low as $\sim 10$ TeV, which although beyond the reach of the LHC, is well within the reach of the future 100-TeV collider, and can also be probed indirectly in the High Luminosity LHC (HL-LHC).
description: 19 Pages, 6 figures. arXiv admin note: substantial text overlap with arXiv:2112.13529
ЭНЕРГЕТИЧЕСКАЯ ИНТЕГРАЦИЯ СТРАН ЕАЭС: ПРОБЛЕМЫ И ПЕРСПЕКТИВЫ
Creators: name: ГРИБАНИЧ В.М.
name: СУХАНОВ А.А.
Publisher: name: Инновации и инвестиции
Year: 2020
Subjects: ЭНЕРГЕТИЧЕСКАЯ ИНТЕГРАЦИЯ
ЕАЭС
ИНТЕГРАЦИОННЫЕ ОБЪЕДИНЕНИЯ
ОБЩИЙ ЭЛЕКТРОЭНЕРГЕТИЧЕСКИЙ РЫНОК
ОБЩИЙ РЫНОК ГАЗА
ОБЩИЙ РЫНОК НЕФТИ И НЕФТЕПРОДУКТОВ
ENERGY INTEGRATION
THE EAEU
INTEGRATION ASSOCIATIONS
THE GENERAL ELECTRICITY MARKET
THE GENERAL GAS MARKET
THE GENERAL OIL AND OIL PRODUCTS MARKET

description: В статье рассматриваются этапы становления и развития Евразийского экономического союза, дается краткая характеристика всех этапов от Таможенного союза до ЕАЭС. Также в исследовании определяются основные факторы и направления развития Евразийского экономического союза, вызовы с которыми может столкнуться Союз в ходе развития. Определена необходимость интеграции в энергетической сфере, рассмотрены основные этапы создания Общих рынков электроэнергии, газа, нефти и нефтепродуктов, а также их экономическая целесообразность, согласно которой, по мнению специалистов, экономический эффект от создания Общего рынка электроэнергии принесет около 7 млрд. долл. США ежегодно, Общего рынка газа порядка 1 млрд. долл. США ежегодно, а от создания Общего рынка нефти и нефтепродуктов за первые пять лет функционирования принесут от 5 до 8 млрд. долл. США.
ФОРМИРОВАНИЕ СТРАТЕГИИ ФИНАНСИРОВАНИЯ ИННОВАЦИОННЫХ ПРОЕКТОВ ПО СОЗДАНИЮ ВЫСОКОТЕХНОЛОГИЧНОЙ ПРОДУКЦИИ (НА ПРИМЕРЕ АВИАСТРОЕНИЯ)
Creators: name: ЕФИМОВА Н.С.
name: МОКРОУСОВА А.И.
Publisher: name: Инновации и инвестиции
Year: 2020
Subjects: АВИАСТРОЕНИЕ
ИННОВАЦИОННЫЕ ПРОЕКТЫ
НИР
ФИНАНСИРОВАНИЕ
AIRCRAFT MANUFACTURING
INNOVATIVE PROJECTS
RESEARCH
FINANCING

description: В настоящее время рынок продукции авиастроения активно растет и развивается в Российской Федерации. Однако многие продукты российских производителей на данный момент не обладают достаточной конкурентоспособностью, чтобы встать в один ряд с известными моделями иностранного производства. Важную роль в процессе планирования бюджета инновационного проекта играет контроль расходов на НИР, особенно в связи с отсутствием положительной связи между ними и прибыльностью проекта. Согласно проведенному анализу эффективности стратегии финансирования двух проектов по финансовому критерию, наиболее эффективную стратегию имеет проект SSJ 100 несмотря на то, что большую часть средств составляют заемные и привлеченные средства. Проанализировав структуру капитала обоих предприятий, можно сделать вывод что в настоящее время стратегия финансирования не является эффективной для всех проектов на рынке гражданского самолетостроения
On amenable Hilbert-Schmidt stable groups
Creators: name: Eckhardt, Caleb
name: Shulman, Tatiana
Publisher: name: arXiv
Year: 2022
Subjects: subject: Group Theory (math.GR)
subject: Functional Analysis (math.FA)
subject: Operator Algebras (math.OA)
subject: FOS: Mathematics

description: We examine Hilbert-Schmidt stability (HS-stability) of discrete amenable groups from several angles. We give a short, elementary proof that finitely generated nilpotent groups are HS-stable. We investigate the permanence of HS-stability under central extensions by showing HS-stability is preserved by finite central quotients, but is not preserved in general. We give a characterization of HS-stability for semidirect products $G\rtimes_γ\mathbb{Z}$ with $G$ abelian. We use it to construct the first example of a finitely generated amenable HS-stable group which is not permutation stable. Finally, it is proved that for amenable groups flexible HS-stability is equivalent to HS-stability, and very flexible HS stability is equivalent to maximal almost periodicity. There is some overlap of our work with the very recent and very nice preprint of Levit and Vigdorovich. We detail this overlap in the introduction. Where our work overlaps it appears that we take different approaches to the proofs and we feel the two works compliment each other.
description: 28 pages
ТЕНДЕНЦИИ РАЗВИТИЯ МИРОВОЙ НЕФТЕХИМИИ ДО 2050 ГОДА
Creators: name: МИХАЙЛОВА А.Д.
Publisher: name: Инновации и инвестиции
Year: 2020
Subjects: МИРОВАЯ НЕФТЕХИМИЧЕСКАЯ ОТРАСЛЬ
ТЕНДЕНЦИИ РАЗВИТИЯ ГЛОБАЛЬНОЙ НЕФТЕГАЗОХИМИИ
ЗАТРАТЫ НА ПРОИЗВОДСТВО
GLOBAL PETROCHEMICAL INDUSTRY
TRENDS IN THE DEVELOPMENT OF GLOBAL PETROCHEMISTRY
COMPETITIVENESS OF PETROCHEMICAL PRODUCTS
PRODUCTION COSTS

description: Растущая роль нефтехимии является одним из ключевых «слепых пятен» в глобальной энергетической дискуссии. Разнообразие и сложность этого сектора означает, что нефтехимии уделяется меньше внимания, чем другим секторам, несмотря на их растущее значение. Данная статья посвящена анализу текущей ситуации в мировой нефтехимической отрасли и факторов выбора сырья и технологических маршрутов производства, таких как себестоимость производства, учитывающая затраты на оборудование и производительность процесса, хотя существуют и другие факторы, некоторые из которых являются региональными, включая доступность сырья, затраты на рабочую силу и нормативную среду.
The Spitzer-HETDEX Exploratory Large-Area Survey
Creators: name: Papovich, Casey
name: Shipley, H. V.
name: Mehrtens, N.
name: Lanham, C.
name: Lacy, M.
name: Ciardullo, R.
name: Finkelstein, S. L.
name: Bassett, R.
name: Behroozi, P
name: Blanc, G. A.
name: de Jong, R. S.
name: DePoy, D. L.
name: Drory, N.
name: Gawiser, E.
name: Gebhardt, K.
name: Gronwall, C.
name: Hill, G. J.
name: Hopp, U.
name: Jogee, S.
name: Kawinwanichakij, L.
name: Marshall, J. L.
name: McLinden, E.
name: Cooper, E. Mentuch
name: Somerville, R. S.
name: Steinmetz, M.
name: Tran, K. -V.
name: Tuttle, S.
name: Viero, M.
name: Wechsler, R.
name: Zeimann, G.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present post-cryogenic Spitzer imaging at 3.6 and 4.5 micron with the Infrared Array Camera (IRAC) of the Spitzer/HETDEX Exploratory Large-Area (SHELA) survey. SHELA covers $\sim$deg$^2$ of the Sloan Digital Sky Survey "Stripe 82" region, and falls within the footprints of the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX) and the Dark Energy Survey. The HETDEX blind R $\sim$ 800 spectroscopy will produce $\sim$ 200,000 redshifts from the Lyman-$α$ emission for galaxies in the range 1.9 < z < 3.5, and an additional $\sim$200,000 redshifts from the [OII] emission for galaxies at z < 0.5. When combined with deep ugriz images from the Dark Energy Camera, K-band images from NEWFIRM, and other ancillary data, the IRAC photometry from Spitzer will enable a broad range of scientific studies of the relationship between structure formation, galaxy stellar mass, halo mass, AGN, and environment over a co-moving volume of $\sim$0.5 Gpc$^3$ at 1.9 < z < 3.5. Here, we discuss the properties of the SHELA IRAC dataset, including the data acquisition, reduction, validation, and source catalogs. Our tests show the images and catalogs are 80% (50%) complete to limiting magnitudes of 22.0 (22.6) AB mag in the detection image, which is constructed from the weighted sum of the IRAC 3.6 and 4.5 micron images. The catalogs reach limiting sensitivities of 1.1 $μ$Jy at both 3.6 and 4.5 micron (1$σ$, for R=2 arcsec circular apertures). As a demonstration of science, we present IRAC number counts, examples of highly temporally variable sources, and galaxy surface density profiles of rich galaxy clusters. In the spirit of Spitzer Exploratory programs we provide all images and catalogs as part of the publication.
description: Accepted for publication in ApJS. 30 pages, emulateapj format. Many figures. All data products, including images and catalogs available http://irsa.ipac.caltech.edu/data/SPITZER/SHELA
Early-type Host Galaxies of Type Ia Supernovae. I. Evidence for Downsizing
Creators: name: Kang, Yijung
name: Kim, Young-Lo
name: Lim, Dongwook
name: Chung, Chul
name: Lee, Young-Wook
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Type Ia supernova (SN Ia) cosmology provides the most direct evidence for the presence of dark energy. This result is based on the assumption that the look-back time evolution of SN Ia luminosity, after light-curve corrections, would be negligible. Recent studies show, however, that the Hubble residual (HR) of SN Ia is correlated with the mass and morphology of host galaxies, implying the possible dependence of SN Ia luminosity on host galaxy properties. In order to investigate this more directly, we have initiated spectroscopic survey for the early-type host galaxies, for which population age and metallicity can be more reliably determined from the absorption lines. As the first paper of the series, here we present the results from high signal-to-noise ratio (>100 per pixel) spectra for 27 nearby host galaxies in the southern hemisphere. For the first time in host galaxy studies, we find a significant (~3.9sigma) correlation between host galaxy mass (velocity dispersion) and population age, which is consistent with the "downsizing" trend among non-host early-type galaxies. This result is rather insensitive to the choice of population synthesis models. Since we find no correlation with metallicity, our result suggests that stellar population age is mainly responsible for the relation between host mass and HR. If confirmed, this would imply that the luminosity evolution plays a major role in the systematic uncertainties of SN Ia cosmology.
description: Accepted for publication in ApJS
Robustness Analysis of Video-Language Models Against Visual and Language Perturbations
Creators: name: Schiappa, Madeline C.
name: Vyas, Shruti
name: Palangi, Hamid
name: Rawat, Yogesh S.
name: Vineet, Vibhav
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Multimedia (cs.MM)
subject: FOS: Computer and information sciences

description: Joint visual and language modeling on large-scale datasets has recently shown good progress in multi-modal tasks when compared to single modal learning. However, robustness of these approaches against real-world perturbations has not been studied. In this work, we perform the first extensive robustness study of video-language models against various real-world perturbations. We focus on text-to-video retrieval and propose two large-scale benchmark datasets, MSRVTT-P and YouCook2-P, which utilize 90 different visual and 35 different text perturbations. The study reveals some interesting initial findings from the studied models: 1) models are generally more susceptible when only video is perturbed as opposed to when only text is perturbed, 2) models that are pre-trained are more robust than those trained from scratch, 3) models attend more to scene and objects rather than motion and action. We hope this study will serve as a benchmark and guide future research in robust video-language learning. The benchmark introduced in this study along with the code and datasets is available at https://bit.ly/3CNOly4.
description: NeurIPS 2022 Datasets and Benchmarks Track. This projects webpage is located at https://bit.ly/3CNOly4
Coagulant proteins in glomerulonephritis
Creators: name: Moussa., Leon
Publisher: name: Monash University
Year: 2021

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.
The young centre of the Earth
Creators: name: Uggerhoj, Ulrik I.
name: Mikkelsen, Rune E.
name: Faye, Jan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Physics Education (physics.ed-ph)
subject: Popular Physics (physics.pop-ph)
subject: FOS: Physical sciences

description: We treat, as an illustrative example of gravitational time dilation in relativity, the observation that the center of the Earth is younger than the surface by an appreciable amount. Richard Feynman first made this insightful point and presented an estimate of the size of the effect in a talk; a transcription was later published in which the time difference is quoted as 'one or two days'. However, a back-of-the-envelope calculation shows that the result is in fact a few years. In this paper we present this estimate alongside a more elaborate analysis yielding a difference of two and a half years. The aim is to provide a fairly complete solution to the relativity of the 'aging' of an object due to differences in the gravitational potential. This solution - accessible at the undergraduate level - can be used for educational purposes, as an example in the classroom. Finally, we also briefly discuss why exchanging 'years' for 'days' - which in retrospect is a quite simple, but significant, mistake - has been repeated seemingly uncritically, albeit in a few cases only. The pedagogical value of this discussion is to show students that any number or observation, no matter who brought it forward, must be critically examined.
description: Published version, apart from minor editing (e.g. corrections of 'center' to 'centre')
The Spectral Geometry of de Sitter Space in Asymptotic Safety
Creators: name: Ferrero, Renata
name: Reuter, Martin
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Within the functional renormalization group approach to Background Independent quantum gravity, we explore the scale dependent effective geometry of the de Sitter solution dS${}_4$. The investigation employs a novel approach whose essential ingredient is a modified spectral flow of the metric dependent d'Alembertian, or of similar hyperbolic kinetic operators. The corresponding one-parameter family of spectra and eigenfunctions encodes information about the nonperturbative backreaction of the dynamically gravitating vacuum fluctuations on the mean field geometry of the quantum spacetime. Used as a diagnostic tool, the power of the spectral flow method resides in its ability to identify the scale dependent subsets of field modes that supply the degrees of freedom which participate in the effective field theory description of the respective scale. A central result is that the ultraviolet of Quantum Einstein Gravity comprises far less effective degrees of freedom than predicted (incorrectly) by background dependent reasoning. Exploring the quantum spacetime's spatial geometry carried by physical fields, we find that 3-dimensional space disintegrates into a collection of coherent patches which individually can, but in their entirety cannot be described by one of the effective average actions occurring along the renormalization group trajectory. A natural concept of an entropy is introduced in order to quantify this fragmentation effect. Tentatively applied to the real Universe, surprising analogies to properties of the observed cosmic microwave background are uncovered. Furthermore, a set of distinguished field modes is found which, in principle, has the ability to transport information about the asymptotic fixed point regime from the ultraviolet, across almost the entire "scale history", to cosmological distances in the observed Universe.
description: 64 pages, 13 figures
Demographic noise in complex ecological communities
Creators: name: Larroya, Ferran
name: Galla, Tobias
Publisher: name: arXiv
Year: 2022
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: We introduce an individual-based model of a complex ecological community with random interactions. The model contains a large number of species, each with a finite population of individuals, subject to discrete reproduction and death events. The interaction coefficients determining the rates of these events is chosen from an ensemble of random matrices, and is kept fixed in time. The set-up is such that the model reduces to the known generalised Lotka-Volterra equations with random interaction coefficients in the limit of an infinite population for each species. Demographic noise in the individual-based model means that species which would survive in the Lotka-Volterra model can become extinct. These noise-driven extinctions are the focus of the paper. We find that, for increasing complexity of interactions, ecological communities generally become less prone to extinctions induced by demographic noise. An exception are systems composed entirely of predator-prey pairs. These systems are known to be stable in deterministic Lotka-Volterra models with random interactions, but, as we show, they are nevertheless particularly vulnerable to fluctuations.
description: 20 pages, 10 figures
Graph-based Multi-View Fusion and Local Adaptation: Mitigating Within-Household Confusability for Speaker Identification
Creators: name: Chen, Long
name: Meng, Yixiong
name: Ravichandran, Venkatesh
name: Stolcke, Andreas
Publisher: name: arXiv
Year: 2022
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: Sound (cs.SD)
subject: Image and Video Processing (eess.IV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Speaker identification (SID) in the household scenario (e.g., for smart speakers) is an important but challenging problem due to limited number of labeled (enrollment) utterances, confusable voices, and demographic imbalances. Conventional speaker recognition systems generalize from a large random sample of speakers, causing the recognition to underperform for households drawn from specific cohorts or otherwise exhibiting high confusability. In this work, we propose a graph-based semi-supervised learning approach to improve household-level SID accuracy and robustness with locally adapted graph normalization and multi-signal fusion with multi-view graphs. Unlike other work on household SID, fairness, and signal fusion, this work focuses on speaker label inference (scoring) and provides a simple solution to realize household-specific adaptation and multi-signal fusion without tuning the embeddings or training a fusion network. Experiments on the VoxCeleb dataset demonstrate that our approach consistently improves the performance across households with different customer cohorts and degrees of confusability.
description: To appear in Interspeech 2022. arXiv admin note: text overlap with arXiv:2106.08207
The Pierre Auger Exotic Events and Axion Quark Nuggets
Creators: name: Zhitnitsky, Ariel
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: The Pierre Auger Observatory have reported [1-3] observation of several exotic cosmic ray -like events which apparently related to thunderstorms. These events are much larger in size than conventional cosmic ray events, and they have very distinct timing features. A possible nature of the observed phenomenon is still a matter of active research and debates as many unusual features of these exotic events are hard to explain. In particular, the frequency of appearance of these exotic events is very low (less than 2 events/year), in huge contrast with a typical rate of a conventional lightning strikes in the area. We propose that the observed exotic events can be explained within the so-called axion quark nugget (AQN) dark matter model. The idea is that the AQNs may trigger and initiate a special and unique class of lightning strikes during a thunderstorm as a result of ionization of the atmospheric molecules along its path. The corresponding AQN-induced lighting flashes may show some specific features not shared by typical and much more frequent conventional flashes. We support this proposal by demonstrating that the observations[1-3], including the frequency of appearance and time duration are consistent with observations. We also comment on possible relation of AUGER exotic events with the Telescope Array bursts and the terrestrial gamma ray flashes. We list a number of features of the AQN-induced exotic events (such as specific radio pulses synchronized with these events) which can be directly tested by future experiments. We also suggest to use distributed acoustic sensing instruments to detect the acoustic pulses which must be synchronized with AUGER exotic events.
description: Many new comments and clarifications on relation with conventional lightnings. Matches the published version in Journal of Physics G: Nuclear and Particles Physics
Deep Learning with Coherent VCSEL Neural Networks
Creators: name: Chen, Zaijun
name: Sludds, Alexander
name: Davis, Ronald
name: Christen, Ian
name: Bernstein, Liane
name: Heuser, Tobias
name: Heermeier, Niels
name: Lott, James A.
name: Reitzenstein, Stephan
name: Hamerly, Ryan
name: Englund, Dirk
Publisher: name: arXiv
Year: 2022
Subjects: subject: Emerging Technologies (cs.ET)
subject: Optics (physics.optics)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Deep neural networks (DNNs) are reshaping the field of information processing. With their exponential growth challenging existing electronic hardware, optical neural networks (ONNs) are emerging to process DNN tasks in the optical domain with high clock rates, parallelism and low-loss data transmission. However, to explore the potential of ONNs, it is necessary to investigate the full-system performance incorporating the major DNN elements, including matrix algebra and nonlinear activation. Existing challenges to ONNs are high energy consumption due to low electro-optic (EO) conversion efficiency, low compute density due to large device footprint and channel crosstalk, and long latency due to the lack of inline nonlinearity. Here we experimentally demonstrate an ONN system that simultaneously overcomes all these challenges. We exploit neuron encoding with volume-manufactured micron-scale vertical-cavity surface-emitting laser (VCSEL) transmitter arrays that exhibit high EO conversion (<5 attojoule/symbol with $V_π$=4 mV), high operation bandwidth (up to 25 GS/s), and compact footprint (<0.01 mm$^2$ per device). Photoelectric multiplication allows low-energy matrix operations at the shot-noise quantum limit. Homodyne detection-based nonlinearity enables nonlinear activation with instantaneous response. The full-system energy efficiency and compute density reach 7 femtojoules per operation (fJ/OP) and 25 TeraOP/(mm$^2\cdot$ s), both representing a >100-fold improvement over state-of-the-art digital computers, with substantially several more orders of magnitude for future improvement. Beyond neural network inference, its feature of rapid weight updating is crucial for training deep learning models. Our technique opens an avenue to large-scale optoelectronic processors to accelerate machine learning tasks from data centers to decentralized edge devices.
description: 10 pages, 5 figures
Wall stabilization of the rigid ballooning $m=1$ mode in a long-thin mirror trap
Creators: name: Kotelnikov, Igor
name: Prikhodko, Vadim
name: Yakovlev, Dmitri
name: Zeng, Qiusun
name: Zhang, Keqing
name: Chen, Zhibin
name: Yu, Jie
Publisher: name: arXiv
Year: 2022
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The prospect of stabilization of the $m=1$ ``rigid'' ballooning mode in an open axially symmetric long-thin trap with the help of a conducting lateral wall surrounding a column of isotropic plasma is studied. It is found that for effective wall stabilization, the beta parameter must exceed $70\%$. The dependence of the critical beta on the mirror ratio, the radial pressure profile, and the axial profile of the vacuum magnet has been studied. It is shown that when a conductive lateral wall is combined with conductive end plates simulating attachment of the end MHD stabilizers to the central cell of an open trap, there are two critical beta values and two stability zones that can merge, making stable the entire range of allowable beta values $0<β<1$.
description: 17 pages, 7 figures