cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Expectation consistency for calibration of neural networks
Creators: name: Clarté, Lucas
name: Loureiro, Bruno
name: Krzakala, Florent
name: Zdeborová, Lenka
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Despite their incredible performance, it is well reported that deep neural networks tend to be overoptimistic about their prediction confidence. Finding effective and efficient calibration methods for neural networks is therefore an important endeavour towards better uncertainty quantification in deep learning. In this manuscript, we introduce a novel calibration technique named expectation consistency (EC), consisting of a post-training rescaling of the last layer weights by enforcing that the average validation confidence coincides with the average proportion of correct labels. First, we show that the EC method achieves similar calibration performance to temperature scaling (TS) across different neural network architectures and data sets, all while requiring similar validation samples and computational resources. However, we argue that EC provides a principled method grounded on a Bayesian optimality principle known as the Nishimori identity. Next, we provide an asymptotic characterization of both TS and EC in a synthetic setting and show that their performance crucially depends on the target function. In particular, we discuss examples where EC significantly outperforms TS.
ЛИНГВИСТИЧЕСКИЙ ЛАНДШАФТ СОВРЕМЕННОГО ДЕРБЕНТА
Creators: name: М.А. Гасанова
Publisher: name: Мир науки, культуры, образования
Year: 2020
Subjects: лингвистический ландшафт
город
Дагестан
Дербент топонимика
годонимы
урбанонимы.

description: Статья посвящена исследованию лингвистического ландшафта современного дагестанского города. В работе рассмотрены основные принципы номинации годонимов. Выявлена специфика лингвистического ландшафта постсоветского дагестанского города, репрезентирующая социально-экономические, политические и культурно-идеологические тенденции различных периодов жизни нашей страны. Топонимы рассматриваются не только с позиций структурно-семантического и функционального аспектов, но и с позиции когнитологии. Внимание в работе уделено и эргонимам как значительному пласту урбанонимии. Автор делает вывод о том, что речевой портрет Дербента характеризуется разнообразной лингвистической практикой применения русского, английского и дагестанских языков, что говорит о полиязычном и социокультурном пространстве города. Дальнейшие исследования изменений в лингвистическом ландшафте современного дагестанского города позволят глубже понимать социолингвистические процессы, протекающие в многонациональном российском обществе.
MICOSE4aPS: Industrially Applicable Maturity Metric to Improve Systematic Reuse of Control Software
Creators: name: Vogel-Heuser, Birgit
name: Neumann, Eva-Maria
name: Fischer, Juliane
Publisher: name: arXiv
Year: 2022
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: automated Production Systems (aPS) are highly complex, mechatronic systems that usually have to operate reliably for many decades. Standardization and reuse of control software modules is a core prerequisite to achieve the required system quality in increasingly shorter development cycles. However, industrial case studies in the field of aPS show that many aPS companies still struggle with strategically reusing software. This paper proposes a metric-based approach to objectively measure the maturity of industrial IEC 61131-based control software in aPS (MICOSE4aPS) to identify potential weaknesses and quality issues hampering systematic reuse. Module developers in the machine and plant manufacturing industry can directly benefit as the metric calculation is integrated into the software engineering workflow. An in-depth industrial evaluation in a top-ranked machine manufacturing company in food packaging and an expert evaluation with different companies confirmed the benefit to efficiently manage the quality of control software.
description: 19 pages, https://dl.acm.org/doi/abs/10.1145/3467896
A Model Driven Approach on Object Oriented PLC Programming for Manufacturing Systems with regard to Usability
Creators: name: Obermeier, Martin
name: Braun, Steven
name: Vogel-Heuser, Birgit
Publisher: name: arXiv
Year: 2022
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: This paper presents the modular automation for reuse in manufacturing systems (modAT4rMS) approach to support the model-driven engineering (MDE) of object oriented manufacturing automation software with regard to its usability and software modularity. With usability we refer to the aspects effectiveness, efficiency and user acceptance, as defined by ISO 9241-11. The modAT4rMS notations are based on selected features from the Unified Modeling Language (UML) and the Systems Modeling language (SysML) and iteratively further developed by a series of empirical studies with industrial practitioners as well as mechatronics trainees. With modAT4rMS a MDE approach for Programmable Logic Controller (PLC) programming was developed with the goal to facilitate modular object oriented programming of PLC software by improving the representation of the relationships between the structure and behavior diagram types and by reducing the level of abstraction in the structure model. modAT4rMS notations for PLC software structure and software behavior modeling are presented and illustrated with a modeling example using a modAT4rMS editor prototype. For the evaluation of the developed notations the results from a study with 168 participants is presented, showing the benefits of this new approach in comparison to the classic procedural paradigm (IEC 61131-3) and the domain specific UML profile plcML in regard to programming performance and usability aspects. Finally the advantages and limitations of the approach are discussed and an outlook for further development is given.
description: 14 pages, https://ieeexplore.ieee.org/abstract/document/6873317
МОТИВЫ ИСПОЛЬЗОВАНИЯ ДОСТИЖЕНИЙ ПЕРЕДОВОЙ НАУКИ И СОЦИАЛЬНОГО ПОДАВЛЕНИЯ В РОМАНЕ-АНТИУТОПИИ И ПРОИЗВЕДЕНИЯХ РУССКОГО КИБЕРПАНКА
Creators: name: А.Т. Ламина
Publisher: name: Мир науки, культуры, образования
Year: 2020
Subjects: киберпанк
мотив
достижения науки
социальное подавление

description: Статья посвящена раскрытию мотивов использования достижений передовой науки и социального подавления в романе-антиутопии и произведениях русского киберпанка. Отмечается, что для антиутопии в целом характерно изображение научно-технических достижений с помощью приемов гротеска и фантастики. Мотив использования достижений передовой науки, трансформируясь в произведениях русского киберпанка, может приобретать несколько иной акцент. Так, гротескно-фантастически представленные достижения передовой науки в художественном мире рассматриваемого жанра сами могут приобретать способность манипулировать общественным сознанием. Мотив использования достижений передовой науки в романе-антиутопии тесно соприкасается с мотивом социального подавления. В статье делается вывод, что русский киберпанк унаследовал мотив социального подавления от романа-антиутопии. И так же, как и в антиутопии, отдельные элементы мотива использования достижений передовой науки могут органически вписываться в его структуру.
Boosting Extra-functional Code Reusability in Cyber-physical Production Systems: The Error Handling Case Study
Creators: name: Vogel-Heuser, Birgit
name: Fischer, Juliane
name: Hess, Dieter
name: Neumann, Eva-Maria
name: Wuerr, Marcus
Publisher: name: arXiv
Year: 2022
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Cyber-Physical Production Systems (CPPS) are long-living and mechatronic systems, which include mechanics, electrics/electronics and software. The interdisciplinary nature combined with challenges and trends in the context of Industry 4.0 such as a high degree of customization, small lot sizes and evolution cause a high amount of variability. Mastering the variability of functional control software, e.g., different control variants of an actuator type, is itself a challenge in developing and reusing CPPS software. This task becomes even more complex when considering extra-functional software such as operating modes, diagnosis and error handling. These software parts have high interdependencies with functional software, often involving the human-machine interface (HMI) to enable the intervention of operators. This paper illustrates the challenges in documenting the dependencies of these software parts including their variability using family models. A procedural and an object-oriented concept for implementing error handling, which represents an extra-functional task with high dependencies to functional software and the HMI, are proposed. The suitability of both concepts to increase the software's reusability and, thus, its flexibility in the context of Industry 4.0 is discussed. Their comparison confirms the high potential of the object-oriented extension of IEC 61131-3 to handle planned reuse of extra-functional CPPS software successfully.
description: 13 pages, https://ieeexplore.ieee.org/abstract/document/9687320/
Volume Reflection and Volume Refraction of Relativistic Particles in a Uniformly Bent Crystal
Creators: name: Kovalev, Gennady V.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The scattering of fast charged particles in a bent crystal has been analyzed in the framework of relativistic classical mechanics. The expressions obtained for the deflection function are in satisfactory agreement with the experimental data for the volume reflection of relativistic protons obtained in [1,2,3]. The features of the scattering of the particles on ring potentials are considered in a wide range of impact parameters
description: 5 pages, 3 figures
The Infrared Imaging Spectrograph (IRIS) for TMT: Volume phase holographic grating performance testing and discussion
Creators: name: Chen, Shaojie
name: Meyer, Elliot
name: Wright, Shelley A.
name: Moore, Anna M.
name: Larkin, James E.
name: Maire, Jerome
name: Mieda, Etsuko
name: Simard, Luc
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Maximizing the grating efficiency is a key goal for the first light instrument IRIS (Infrared Imaging Spectrograph) currently being designed to sample the diffraction limit of the TMT (Thirty Meter Telescope). Volume Phase Holographic (VPH) gratings have been shown to offer extremely high efficiencies that approach 100% for high line frequencies (i.e., 600 to 6000l/mm), which has been applicable for astronomical optical spectrographs. However, VPH gratings have been less exploited in the near-infrared, particularly for gratings that have lower line frequencies. Given their potential to offer high throughputs and low scattered light, VPH gratings are being explored for IRIS as a potential dispersing element in the spectrograph. Our team has procured near-infrared gratings from two separate vendors. We have two gratings with the specifications needed for IRIS current design: 1.51-1.82μm (H-band) to produce a spectral resolution of 4000 and 1.19- 1.37 μm (J-band) to produce a spectral resolution of 8000. The center wavelengths for each grating are 1.629μm and 1.27μm, and the groove densities are 177l/mm and 440l/mm for H-band R=4000 and J-band R=8000, respectively. We directly measure the efficiencies in the lab and find that the peak efficiencies of these two types of gratings are quite good with a peak efficiency of ~88% at the Bragg angle in both TM and TE modes at H-band, and 90.23% in TM mode, 79.91% in TE mode at J-band for the best vendor. We determine the drop in efficiency off the Bragg angle, with a 20-23% decrease in efficiency at H-band when 2.5 degree deviation from the Bragg angle, and 25%-28% decrease at J-band when 5° deviation from the Bragg angle.
description: Proceedings of the SPIE, 9147-334
Learning-based Calibration of Flux Crosstalk in Transmon Qubit Arrays
Creators: name: Barrett, Cora N.
name: Karamlou, Amir H.
name: Muschinske, Sarah E.
name: Rosen, Ilan T.
name: Braumüller, Jochen
name: Das, Rabindra
name: Kim, David K.
name: Niedzielski, Bethany M.
name: Schuldt, Meghan
name: Serniak, Kyle
name: Schwartz, Mollie E.
name: Yoder, Jonilyn L.
name: Orlando, Terry P.
name: Gustavsson, Simon
name: Grover, Jeffrey A.
name: Oliver, William D.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Superconducting quantum processors comprising flux-tunable data and coupler qubits are a promising platform for quantum computation. However, magnetic flux crosstalk between the flux-control lines and the constituent qubits impedes precision control of qubit frequencies, presenting a challenge to scaling this platform. In order to implement high-fidelity digital and analog quantum operations, one must characterize the flux crosstalk and compensate for it. In this work, we introduce a learning-based calibration protocol and demonstrate its experimental performance by calibrating an array of 16 flux-tunable transmon qubits. To demonstrate the extensibility of our protocol, we simulate the crosstalk matrix learning procedure for larger arrays of transmon qubits. We observe an empirically linear scaling with system size, while maintaining a median qubit frequency error below $300$ kHz.
description: 20 pages, 16 figures; replaced with published version
СЕМАНТИЧЕСКИ МНИМЫЕ АНГЛО-АМЕРИКАНСКИЕ ЗАИМСТВОВАНИЯ В НЕМЕЦКОМ ЯЗЫКЕ (SCHEINENTLEHNUNGEN)
Creators: name: М.С. Омельченко
Publisher: name: Мир науки, культуры, образования
Year: 2020
Subjects: семантические особенности заимствований
семантические мнимые заимствования
англо-американизмы
концепт
языкдонор
язык-реципиент.

description: Целью данной статьи является описание путей и способов влияния языка-донора на язык-реципиент. Рассматривается термин Scheinentlehnungen, так называемые, мнимые заимствования. Любой процесс, происходящий в современном мире, влечёт за собой изменения в языке во многих сферах. Несомненным является тот факт, что большая часть заимствований поступает из английского языка. В статье рассматривается категория «семантические мнимые заимствования» (Scheinentlehnungen), даётся характеристика и приводятся примеры функционирования заимствований данного вида в немецком языке. Автор делает вывод о том, что в случаях с семантическими мнимыми заимствованиями трудно установить, идет ли речь об англицизме, имеющем в немецком языке такое же значение, как в английском, или слово получило дополнительные значения. Основные изменения значений заимствований связаны с процессами расширения, которые можно проследить как на старых заимствованиях (starten, Festival), так и на современных заимствованных англо-американизмах (Drink, Team, Camp).
High accuracy decoding of dynamical motion from a large retinal population
Creators: name: Marre, Olivier
name: Botella-Soler, Vicente
name: Simmons, Kristina D.
name: Mora, Thierry
name: Tkačik, Gašper
name: Berry, Michael J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Biological sciences

description: Motion tracking is a challenge the visual system has to solve by reading out the retinal population. Here we recorded a large population of ganglion cells in a dense patch of salamander and guinea pig retinas while displaying a bar moving diffusively. We show that the bar position can be reconstructed from retinal activity with a precision in the hyperacuity regime using a linear decoder acting on 100+ cells. The classical view would have suggested that the firing rates of the cells form a moving hill of activity tracking the bar's position. Instead, we found that ganglion cells fired sparsely over an area much larger than predicted by their receptive fields, so that the neural image did not track the bar. This highly redundant organization allows for diverse collections of ganglion cells to represent high-accuracy motion information in a form easily read out by downstream neural circuits.
description: 23 pages, 7 figures
ПРОБЛЕМА ИДЕИ «ВОСТОЧНОГО ПЕССИМИЗМА» И КРИЗИС РУБЕЖА XIX – XX ВЕКОВ В РОМАНЕ Г.К. ЧЕСТЕРТОНА «ЧЕЛОВЕК, КОТОРЫЙ БЫЛ ЧЕТВЕРГОМ»
Creators: name: Л.В. Писарев
Publisher: name: Мир науки, культуры, образования
Year: 2020
Subjects: Г.К. Честертон
гностицизм
пессимизм
декаданс
анархизм
нигилизм
атеизм
теодицея

description: В статье исследуется один из аспектов религиозно-философской проблематики романа Г.К. Честертона «Человек, который был Четвергом»: генезис идей, лежащих в основе разрушительных тенденций в обществе рубежа XIX – XX веков. Произведение Г.К. Честертона стало реакцией писателя на экзистенциальный кризис рубежа веков, его жизнеутверждающий пафос полемически направлен не только против отдельных течений в культуре, искусстве и общественной жизни, но против самой идеи пессимизма и скепсиса по отношению к мирозданию. Автор статьи нашел в тексте романа косвенные указания на природу и источник разрушительных идей, носителем которых является упоминаемая в романе «могущественная, богатая и фанатичная церковь восточного пессимизма», стоящая за такими явлениями как атеизм, анархизм, нигилизм и терроризм. На основании анализа текста романа «Человек, который был Четвергом», исследования историко-биографического контекста его создания с привлечением материалов «Автобиографии» Г.К. Честертона и материалов по философской и богословской проблематике автор делает предположение, что мировоззренческой основой таких явлений эпохи декаданса, как анархизм, нигилизм, дух пессимизма и негативного мировосприятия могли быть религиозно-философские взгляды гностиков, сохранившие свои доктринальные особенности со времен возникновения гностицизма. Проведенное исследование расширяет границы понимания авторского замысла романа «Человек, который был Четвергом» и доказывает, что произведение Г.К. Честертона затрагивает глубокие религиозно-философские проблемы.
Parareal with a physics-informed neural network as coarse propagator
Creators: name: Ibrahim, Abdul Qadir
name: Götschel, Sebastian
name: Ruprecht, Daniel
Publisher: name: arXiv
Year: 2023
Subjects: subject: Numerical Analysis (math.NA)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 65Y05, 68T07, 65M55

description: Parallel-in-time algorithms provide an additional layer of concurrency for the numerical integration of models based on time-dependent differential equations. Methods like Parareal, which parallelize across multiple time steps, rely on a computationally cheap and coarse integrator to propagate information forward in time, while a parallelizable expensive fine propagator provides accuracy. Typically, the coarse method is a numerical integrator using lower resolution, reduced order or a simplified model. Our paper proposes to use a physics-informed neural network (PINN) instead. We demonstrate for the Black-Scholes equation, a partial differential equation from computational finance, that Parareal with a PINN coarse propagator provides better speedup than a numerical coarse propagator. Training and evaluating a neural network are both tasks whose computing patterns are well suited for GPUs. By contrast, mesh-based algorithms with their low computational intensity struggle to perform well. We show that moving the coarse propagator PINN to a GPU while running the numerical fine propagator on the CPU further improves Parareal's single-node performance. This suggests that integrating machine learning techniques into parallel-in-time integration methods and exploiting their differences in computing patterns might offer a way to better utilize heterogeneous architectures.
description: 13 pages, 7 figures
Nernst response, viscosity and mobile entropy in vortex liquids
Creators: name: Behnia, Kamran
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In a liquid of superconducting vortices, a longitudinal thermal gradient generates a transverse electric field. This Nernst signal peaks at an intermediate temperature and magnetic field, presumably where the entropy difference between the vortex core and the superfluid environment is largest. There is a puzzling similarity of the amplitude of this peak across many different superconductors. This peak can be assimilated to a minimum in the viscosity to entropy density ratio of the vortex liquid. Expressed in units of $\frac{\hbar}{k_B}$, this minimum is one order of magnitude larger than what is seen in common liquids. Moreover, the entropy stocked in the vortex core is \textit{not} identical to the entropy bound to a moving magnetic flux line. Due to a steady exchange of normal quasi-particles, entropy can leak from the vortex core. A slowly moving vortex will be peeled off its entropy within a distance of the order of a superconducting coherence length, provided that the $\fracΔ{E_F}$ ratio is sufficiently large.
description: 17 pages, 5 figures
The Impact of Business Environmental Factors on Organization’s Change Management Process - A Study on a Multinational Company “Starbucks Corporation”
Creators: name: Chowdhury, Rupam
Publisher: name: figshare
Year: 2022
Subjects: subject: 150301 Business Information Management (incl. Records, Knowledge and Information Management, and Intelligence)
subject: FOS: Economics and business

description: Sustaining for a substantial period of time organization does simply need to adapt the business environmental forces for changes. In doing so, an organization must have to execute some critical but essential transformational programs like: merger and acquisition, new product development, new market exploration, managerial and operational changes, changes in supply chain, leadership, cultural change, total quality management, restructuring accompanied by the effective guidance of a valid change management model. This paper is to examine how a multinational organization like ‘Starbucks Corporation’ has operated through carrying out such a predetermined but unanticipated adaptation activities. In-depth inspection shows, Starbucks Corporation has implemented Kotter’s Eight Steps Change Management model rigorously, to be transformed into, what they are in the current market place despite of heavy environmental resistance from both the inside and outside the organization.
СЕМАНТИЧЕСКАЯ СТРУКТУРА ПОСЛОВИЦ И ПОГОВОРОК ЗАКАТАЛЬСКОГО ДИАЛЕКТА АВАРСКОГО ЯЗЫКА
Creators: name: М.Ч. Чеерчиев
Publisher: name: Мир науки, культуры, образования
Year: 2020
Subjects: аварский язык
закатальский диалект
пословицы и поговорки
семантика.

description: Закатальский диалект аварского языка изучен достаточно подробно. Вместе с тем пословицы и поговорки этого диалекта не были предметом специального научного исследования. В статье показано, что пословицы и поговорки этого диалекта в структурно-семантическом отношении подразделяются на три группы: о человеческих отношениях, о достоинствах и недостатках человека, смысле жизни; о доверии к человеку, его чувствах и характере; пословицы и поговорки на бытовую тематику. Каждая из этих групп внутри себя обнаруживает достаточно большое тематическое разнообразие. Тот факт, что в пословицах и поговорках очень редко встречаются заимствованные слова, свидетельствует о достаточно древнем их происхождении.
Global Numerical Modeling of Energetic Proton Acceleration in a Coronal Mass Ejection Traveling through the Solar Corona
Creators: name: Kozarev, Kamen A.
name: Evans, Rebekah M.
name: Schwadron, Nathan A.
name: Dayeh, Maher A.
name: Opher, Merav
name: Korreck, Kelly E.
name: van der Holst, Bart
Publisher: name: arXiv
Year: 2014
Subjects: subject: Space Physics (physics.space-ph)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The acceleration of protons and electrons to high (sometimes GeV/nucleon) energies by solar phenomena is a key component of space weather. These solar energetic particle (SEP) events can damage spacecraft and communications, as well as present radiation hazards to humans. In-depth particle acceleration simulations have been performed for idealized magnetic fields for diffusive acceleration and particle propagation, and at the same time the quality of MHD simulations of coronal mass ejections (CMEs) has improved significantly. However, to date these two pieces of the same puzzle have remained largely decoupled. Such structures may contain not just a shock but also sizable sheath and pileup compression regions behind it, and may vary considerably with longitude and latitude based on the underlying coronal conditions. In this work, we have coupled results from a detailed global three-dimensional MHD time-dependent CME simulation to a global proton acceleration and transport model, in order to study time-dependent effects of SEP acceleration between 1.8 and 8 solar radii in the 2005 May 13 CME. We find that the source population is accelerated to at least 100 MeV, with distributions enhanced up to six orders of magnitude. Acceleration efficiency varies strongly along field lines probing different regions of the dynamically evolving CME, whose dynamics is influenced by the large-scale coronal magnetic field structure. We observe strong acceleration in sheath regions immediately behind the shock.
description: 28 pages, 8 figures; Published in The Astrophysical Journal
Evolution of Solar-Type Activity: Acoustic and Magnetic Energy Generation and Propagation in Beta Hydri (G2 IV)
Creators: name: Fawzy, Diaa E.
name: Cuntz, Manfred
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We examine the acoustic and magnetic energy generation and propagation in beta Hydri (G2 IV). The underlying motivation for this work is based on the solar, stellar, and galactic relevance of beta Hydri (a star in the Southern hemisphere), which is readily understood as a prime example and proxy of the future Sun - thus allowing assessments and analyses of the secular decay of solar activity. Regarding the magnetic energy generation, we consider longitudinal flux tube waves. We also assess acoustic waves. For the acoustic wave energy flux, the difference between the results obtained for beta Hydri and the Sun is significantly smaller than typically attained for main-sequence stars, which is largely due to the gravity-dependence of the acoustic energy generation. Furthermore, we study the height-dependent behavior of the magnetic energy flux for different magnetic filling factors corresponding to different flux tube spreadings. Finally, we comment on possible directions of future research.
description: Accepted by Astrophysics and Space Science (Ap&SS); 25 pages, including 8 figures and 5 tables
The InfraRed Imaging Spectrograph (IRIS) for TMT: Reflective ruled diffraction grating performance testing and discussion
Creators: name: Meyer, Elliot
name: Chen, Shaojie
name: Wright, Shelley A.
name: Moore, Anna M.
name: Larkin, James E.
name: Simard, Luc
name: Maire, Jerome
name: Mieda, Etsuko
name: Gordon, Jacob
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We present the efficiency of near-infrared reflective ruled diffraction gratings designed for the InfraRed Imaging Spectrograph (IRIS). IRIS is a first light, integral field spectrograph and imager for the Thirty Meter Telescope (TMT) and narrow field infrared adaptive optics system (NFIRAOS). We present our experimental setup and analysis of the efficiency of selected reflective diffraction gratings. These measurements are used as a comparison sample against selected candidate Volume Phase Holographic (VPH) gratings (see Chen et al., this conference). We investigate the efficiencies of five ruled gratings designed for IRIS from two separate vendors. Three of the gratings accept a bandpass of 1.19-1.37 μm (J band) with ideal spectral resolutions of R=4000 and R=8000, groove densities of 249 and 516 lines/mm, and blaze angles of 9.86 and 20.54 degrees, respectively. The other two gratings accept a bandpass of 1.51-1.82 μm (H Band) with an ideal spectral resolution of R=4000, groove density of 141 lines/mm, and blaze angle of 9.86°. We measure the efficiencies off blaze angle for all gratings and the efficiencies between the polarization transverse magnetic (TM) and transverse electric (TE) states. The peak reflective efficiencies are 98.90 +/- 3.36% (TM) and 84.99 +/- 2.74% (TM) for the H-band R=4000 and J-band R=4000 respectively. The peak reflective efficiency for the J-band R=8000 grating is 78.78 +/- 2.54% (TE). We find that these ruled gratings do not exhibit a wide dependency on incident angle within +/-3°. Our best-manufactured gratings were found to exhibit a dependency on the polarization state of the incident beam with a ~10-20% deviation, consistent with the theoretical efficiency predictions.
description: Proceedings of the SPIE, 9147-349
The Impact of Effective Human Resource Management Practices on the Organizational Performance: An Analysis on Some Selected Banking Organization in Bangladesh
Creators: name: Chowdhury, Rupam
Publisher: name: figshare
Year: 2022
Subjects: subject: 150305 Human Resources Management
subject: FOS: Economics and business

description: This research has been conducted in the area of application of human resource management (HRM), especially its impact on the organization’s financial performances. The aim of the paper is to focus on the relationship between HR practices and performances for the banking organization in Bangladesh. It is assumed that HRM practices have favorable influence on the profitability and growth of a firm. The primary data were gathered by using structured questionnaire sent to employees having different job status from several departments of banking firms in Bangladesh. Annual reports (as source of secondary data) of the selected banking companies were collected for the purpose measuring and finding the performance. The research paper has been designed to reveal the role of HRM practices and to test the relationship among different firm’s performance indicators such as: total assets turnover, net profit and gross profit margin etc. It is found that HRM practices truly improve the performance of the banking organization in Bangladesh.
Recent Advances and Applications of Machine Learning in Experimental Solid Mechanics: A Review
Creators: name: Jin, Hanxun
name: Zhang, Enrui
name: Espinosa, Horacio D.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: For many decades, experimental solid mechanics has played a crucial role in characterizing and understanding the mechanical properties of natural and novel materials. Recent advances in machine learning (ML) provide new opportunities for the field, including experimental design, data analysis, uncertainty quantification, and inverse problems. As the number of papers published in recent years in this emerging field is exploding, it is timely to conduct a comprehensive and up-to-date review of recent ML applications in experimental solid mechanics. Here, we first provide an overview of common ML algorithms and terminologies that are pertinent to this review, with emphasis placed on physics-informed and physics-based ML methods. Then, we provide thorough coverage of recent ML applications in traditional and emerging areas of experimental mechanics, including fracture mechanics, biomechanics, nano- and micro-mechanics, architected materials, and 2D material. Finally, we highlight some current challenges of applying ML to multi-modality and multi-fidelity experimental datasets and propose several future research directions. This review aims to provide valuable insights into the use of ML methods as well as a variety of examples for researchers in solid mechanics to integrate into their experiments.
description: 93 pages, 10 figures
Quasi-conical quantum dot: electron states and quantum transitions
Creators: name: Kazaryan, Eduard
name: Petrosyan, Lyudvig
name: Shahnazaryan, Vanik
name: Sarkisyan, Hayk
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The exactly solvable model of quasi-conical quantum dot, having a form of spherical sector is proposed. Due to the specific symmetry of the problem the separation of variables in spherical coordinates is possible in the one-electron Schrodinger equation. Analytical expressions for wave function and energy spectrum are obtained. It is shown that at small values of the stretch angle of spherical sector the problem reduced to the conical QD problem. The comparison with previously performed works showed good agreement of results. As an application of the obtained results, the quantum transitions in the system are considered.
ВЛИЯНИЕ ИНТЕРКУЛЬТУРНОЙ КОММУНИКАЦИИ НА ФОРМИРОВАНИЕ И РАЗВИТИЕ ЯЗЫКОВОЙ ЛИЧНОСТИ В СПЕЦИФИКЕ ПОЛИЛИНГВАЛЬНОГО ПРОСТРАНСТВА СЕВЕРО-КАВКАЗСКОГО РЕГИОНА
Creators: name: А.С. Гончаров
name: М.С. Кардумян
name: О.С. Макарова
name: В.Г. Павленко
Publisher: name: Мир науки, культуры, образования
Year: 2020
Subjects: языковая личность
интеркультурная коммуникация
лингвоментальный комплекс
полилингвальная личность
национальная культура
ординарная семантика
билингвизм

description: Настоящая статья посвящена изучению влияния интеркультурной коммуникации, национальной культуры, языкового коллектива и индивидуально-личностных черт на формирование и развитие языковой личности. При рассмотрении уровней владения языком нами анализируется когнитивно-эмоциональный и логико-семантический факторы качественного преобразования внутренних языковых характеристик личности. В ходе исследования разбирается манифестация языковой личности через интеркультурную коммуникацию в специфике полилингвального региона, на основе чего выявляется сущность аутентичной инокультурной коммуникации. Изучаются лингвистические характеристики языковой личности – культурные концепты и их аттракторы, даётся общая оценка экстралингвистическим характеристикам – ценностным аттракторам в лингвоментальном комплексе языковой личности.
Leveraging TCN and Transformer for effective visual-audio fusion in continuous emotion recognition
Creators: name: Zhou, Weiwei
name: Lu, Jiada
name: Xiong, Zhaolong
name: Wang, Weifeng
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Human emotion recognition plays an important role in human-computer interaction. In this paper, we present our approach to the Valence-Arousal (VA) Estimation Challenge, Expression (Expr) Classification Challenge, and Action Unit (AU) Detection Challenge of the 5th Workshop and Competition on Affective Behavior Analysis in-the-wild (ABAW). Specifically, we propose a novel multi-modal fusion model that leverages Temporal Convolutional Networks (TCN) and Transformer to enhance the performance of continuous emotion recognition. Our model aims to effectively integrate visual and audio information for improved accuracy in recognizing emotions. Our model outperforms the baseline and ranks 3 in the Expression Classification challenge.
description: 2023 IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops (CVPRW)
Fastcc: fast colour corrections for broadband radio telescope data
Creators: name: Peel, Mike W.
name: Genova-Santos, Ricardo
name: Dickinson, C.
name: Leahy, J. P.
name: López-Caraballo, Carlos
name: Fernández-Torreiro, M.
name: Rubiño-Martín, J. A.
name: Spencer, Locke D.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Broadband receiver data need colour corrections applying to correct for the different source spectra across their wide bandwidths. The full integration over a receiver bandpass may be computationally expensive and redundant when repeated many times. Colour corrections can be applied, however, using a simple quadratic fit based on the full integration instead. Here we describe fastcc and interpcc, quick Python and IDL codes that return, respectively, colour correction coefficients for different power-law spectral indices and modified black bodies for various Cosmic Microwave Background related experiments. The codes are publicly available, and can be easily extended to support additional telescopes.
description: 3 pages, 1 figure. Published in RNAAS
Weak electron-phonon coupling in the early alkali atomic wires
Creators: name: Lanzillo, Nicholas A.
name: Nayak, Saroj K.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The structural, electronic and vibrational properties of atomic wires composed of the early alkali metals lithium and sodium are studied using density functional perturbation theory. The s-like electronic states near the Fermi level couple very weakly to longitudinal acoustic phonons and not at all to the transverse acoustic phonons, which results in a weak overall electron-phonon coupling. The results are compared to earlier studies on the electron-phonon coupling in metallic atomic wires and reinforces the idea that s-like states at the Fermi level give rise to weak electron-phonon coupling in one-dimension, in contrast with materials containing d-like states at the Fermi level which have correspondingly larger electron-phonon coupling due to interactions with transverse phonons.
description: 4 pages, 3 figures
АНАЛИЗ СРАВНЕНИЙ, ОПИСЫВАЮЩИХ ДЕЙСТВИЯ, В ТЕКСТАХ ОЛОНХО СЕВЕРО-ВОСТОЧНОЙ ТРАДИЦИИ ЯКУТОВ
Creators: name: О.К. Павлова
Publisher: name: Мир науки, культуры, образования
Year: 2020
Subjects: тюркские эпосы
якутское олонхо
северо-восточная традиция
поэтические средства
сравнения
сравнения описывающие действия.

description: В статье поставлена цель – выявить сложную сравнительную конструкцию и проанализировать структуру сравнений, описывающих действия, в текстах олонхо северо-восточной традиции якутов. Научная новизна данной статьи заключается в том, что поэтические средства в северо-восточной эпической традиции якутов изучаются впервые. Специальные труды по изучению поэтических троп в текстах якутских олонхо очень немногочисленны. Для данной эпической традиции характерны простые и сложные сравнения. Сложные сравнения разделяются на три группы: ступенчатые, множительные и сравнения, описывающие действия. В результате исследования мы смогли доказать, что в текстах олонхо северо-восточной традиции якутов используются сложные сравнительные конструкции. Структура сравнений, описывающие действия, состоит из нескольких простых сравнений, каждое из которых имеет свои объекты, выраженные действиями.
Simulations and measurements of beam loss patterns at the CERN Large Hadron Collider
Creators: name: Bruce, R.
name: Assmann, R. W.
name: Boccone, V.
name: Bracco, C.
name: Brugger, M.
name: Cauchi, M.
name: Cerutti, F.
name: Deboy, D.
name: Ferrari, A.
name: Lari, L.
name: Marsili, A.
name: Mereghetti, A.
name: Mirarchi, D.
name: Quaranta, E.
name: Redaelli, S.
name: Robert-Demolaize, G.
name: Rossi, A.
name: Salvachua, B.
name: Skordis, E.
name: Tambasco, C.
name: Valentino, G.
name: Weiler, T.
name: Vlachoudis, V.
name: Wollmann, D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The CERN Large Hadron Collider (LHC) is designed to collide proton beams of unprecedented energy, in order to extend the frontiers of high-energy particle physics. During the first very successful running period in 2010--2013, the LHC was routinely storing protons at 3.5--4 TeV with a total beam energy of up to 146 MJ, and even higher stored energies are foreseen in the future. This puts extraordinary demands on the control of beam losses. An un-controlled loss of even a tiny fraction of the beam could cause a superconducting magnet to undergo a transition into a normal-conducting state, or in the worst case cause material damage. Hence a multi-stage collimation system has been installed in order to safely intercept high-amplitude beam protons before they are lost elsewhere. To guarantee adequate protection from the collimators, a detailed theoretical understanding is needed. This article presents results of numerical simulations of the distribution of beam losses around the LHC that have leaked out of the collimation system. The studies include tracking of protons through the fields of more than 5000 magnets in the 27 km LHC ring over hundreds of revolutions, and Monte-Carlo simulations of particle-matter interactions both in collimators and machine elements being hit by escaping particles. The simulation results agree typically within a factor 2 with measurements of beam loss distributions from the previous LHC run. Considering the complex simulation, which must account for a very large number of unknown imperfections, and in view of the total losses around the ring spanning over 7 orders of magnitude, we consider this an excellent agreement. Our results give confidence in the simulation tools, which are used also for the design of future accelerators.
Stochastic Differential Equations for Quantum Dynamics of Spin-Boson Networks
Creators: name: Mandt, Stephan
name: Sadri, Darius
name: Houck, Andrew A.
name: Türeci, Hakan E.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The quantum dynamics of open many-body systems poses a challenge for computational approaches. Here we develop a stochastic scheme based on the positive P phase-space representation to study the nonequilibrium dynamics of coupled spin-boson networks that are driven and dissipative. Such problems are at the forefront of experimental research in cavity and solid state realizations of quantum optics, as well as cold atom physics, trapped ions and superconducting circuits. We demonstrate and test our method on a driven, dissipative two-site system, each site involving a spin coupled to a photonic mode, with photons hopping between the sites, where we find good agreement with Monte Carlo Wavefunction simulations. In addition to numerically reproducing features recently observed in an experiment [Phys. Rev. X 4, 031043 (2014)], we also predict a novel steady state quantum dynamical phase transition for an asymmetric configuration of drive and dissipation.
description: 15 pages, 8 figures
Job Stress: Its Causes, Impact and Minimization Strategies
Creators: name: Chowdhury, Rupam
Publisher: name: figshare
Year: 2022
Subjects: subject: 150311 Organisational Behaviour
subject: FOS: Economics and business

description: Effective job stress management has become a critical success factor for an organization due to the rapid changes in technology, service diversification, environment, and consumer behavior. It is true that all employees cannot cope with such fast changes. Stress among employees has turned into an unavoidable factor as the wok procedures, techniques and systems are getting complicated. This paper is aimed at identifying what organizational stress is all about, its causes, symptoms, and how to manage stress effectively. Structured questionnaire has been prepared to get relevant data from the selected sample from different private universities. It is found that most of the junior faculty members in private universities remain in stress. Majority seeks for better solution to get relieved from such high level of stress.
Superfluid dark matter in tension with weak gravitational lensing data
Creators: name: Mistele, Tobias
name: McGaugh, Stacy
name: Hossenfelder, Sabine
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Superfluid dark matter (SFDM) is a model that promises to reproduce the successes of both particle dark matter on cosmological scales and those of Modified Newtonian Dynamics (MOND) on galactic scales. SFDM reproduces MOND only up to a certain distance from the galactic center, and only for kinematic observables: It does not affect trajectories of light. We test whether this is consistent with a recent analysis of weak gravitational lensing that has probed accelerations around galaxies to unprecedentedly large radii. This analysis found the data to be close to the prediction of MOND, suggesting they might be difficult to fit with SFDM. To investigate this matter, we solved the equations of motion of the model and compared the result to observational data. Our results show that the SFDM model is incompatible with the weak-lensing observations, at least in its current form.
description: 20 pages, 12 figures
Robust Direction-of-Arrival Estimation using Array Feedback Beamforming in Low SNR Scenarios
Creators: name: Mehta, Parth
name: Appaiah, Kumar
name: Velmurugan, Rajbabu
Publisher: name: arXiv
Year: 2023
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: A new spatial IIR beamformer based direction-of-arrival (DoA) estimation method is proposed in this paper. We propose a retransmission based spatial feedback method for an array of transmit and receive antennas that improves the performance parameters of a beamformer, viz. half-power beamwidth (HPBW), side-lobe suppression, and directivity. Through quantitative comparison, we show that our approach outperforms the previous feedback beamforming approach with a single transmit antenna, and the conventional beamformer. We then incorporate a retransmission based minimum variance distortionless response (MVDR) beamformer with the feedback beamforming setup. We propose two approaches, show that one approach is superior in terms of lower estimation error, and use that as the DoA estimation method. We then compare this approach with Multiple Signal Classification (MUSIC), Estimation of Parameters using Rotation Invariant Technique (ESPRIT), robust MVDR, nested-array MVDR, and reduced-dimension MVDR methods. The results show that at SNR levels of -60 dB to -10 dB, the angle estiation error of the proposed method is 20 degree less compared to that of prior methods.
What Determines the Fermi Wave Vector of Composite Fermions?
Creators: name: Kamburov, D.
name: Liu, Yang
name: Mueed, M. A.
name: Shayegan, M.
name: Pfeiffer, L. N.
name: West, K. W.
name: Baldwin, K. W.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Composite fermions (CFs), exotic particles formed by pairing an even number of flux quanta to each electron, provide a fascinating description of phenomena exhibited by interacting two-dimensional electrons at high magnetic fields. At and near Landau level filling $ν=1/2$, CFs occupy a Fermi sea and exhibit commensurability effects when subjected to a periodic potential modulation. We observe a pronounced asymmetry in the magnetic field positions of the commensurability resistance minima of CFs with respect to the field at $ν=1/2$. This unexpected asymmetry is quantitatively consistent with the CFs' Fermi wave vector being determined by the \textit{minority} carriers in the lowest Landau level. Our data indicate a breaking of the particle-hole symmetry for CFs near $ν=1/2$.
description: 4 pages, 4 figures