cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Eta Photoproduction as a Test of the Extended Chiral Symmetry
Creators: name: Fernandez-Ramirez, C.
name: de Guerra, E. Moya
name: Udias, J. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyze the $γp \to ηp$ process from threshold up to 1.2 GeV, employing an effective Lagrangian approach that allows for a mixing of eta couplings of pseudoscalar and pseudovector nature. The mixing ratio of the couplings may serve as a quantitative estimation of the $SU_L(3)\times SU_R(3)$ extended chiral symmetry violation in this energy regime. The data analyzed (differential cross sections and asymmetries) show a preference for the pseudoscalar coupling -- 91% of pseudoscalar coupling component for the best fit. We stress that a more conclusive answer to this question requires a more complete electromagnetic multipole database than the presently available one.
description: Accepted for publication in Physics Letters B, 1 table, 3 figures
Feeble Metallicity and Robust Semiconducting Regime in Structurally Sensitive Ba(Pb, Sn)O$_3$ Alloys
Creators: name: Kashikar, Ravi
name: Nanda, B. R. K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Density functional calculations are carried out to study the symmetry and substitution-driven electronic phase transition in BaPb$_{1-x}$Sn$_x$O$_3$. Two end members BaSnO$_3$ and BaPbO$_3$, are found to be insulating and metallic, respectively. In the latter case, the metallicity arises with the presence of an electron pocket, formed by Pb-s dominated conduction band edge, and a hole pocket formed O-p dominated valence bands. While electron carriers are found to be highly mobile, the hole carriers are localized. Our study reveals that an insulating phase can be realized in the metallic cubic BaPbO$_3$ in three ways in order to explore optoelectronic properties. Firstly, by lowering the symmetry of the lattice to monoclinic through rotation and tilting of the PbO$_6$ octahedra. Secondly, by hydrostatic pressure, and thirdly by alloying with Sn substitution. The presence of soft phonon modes implies the plausibility of symmetry lowering structural transitions. Furthermore, unlike the earlier reports, we find that Sn substituted BaPbO$_3$ cannot exhibits topological insulator phase due to absence of the band inversion.
description: 11 pages, 12 figures
ราชมงคลพระนครวิชาการ
Creators: name: ดวงสุดา  เตโชติรส
Publisher: name: มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร
Year: 2013
Subjects: ราชมงคลพระนคร, งานวิชาการ, งานวิจัย

description: 2, 7, วารสารวิชาการและวิจัย มทร.พระนคร
A Tale of Two Herbig Ae stars -MWC275 and AB Aurigae: Comprehensive Models for SED and Interferometry
Creators: name: Tannirkulam, A.
name: Monnier, J. D.
name: Harries, T. J.
name: Millan-Gabet, R.
name: Zhu, Z.
name: Pedretti, E.
name: Ireland, M.
name: Tuthill, P.
name: Brummelaar, T. ten
name: McAlister, H.
name: Farrington, C.
name: Goldfinger, P. J.
name: Sturmann, J.
name: Sturmann, L.
name: Turner, N.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present comprehensive models for the Herbig Ae stars MWC275 and AB Aur that aim to explain their spectral energy distribution (from UV to millimeter) and long baseline interferometry (from near-infrared to millimeter) simultaneously. Data from the literature, combined with new mid-infrared (MIR) interferometry from the Keck Segment Tilting Experiment, are modeled using an axisymmetric Monte Carlo radiative transfer code. Models in which most of the near-infrared (NIR) emission arises from a dust rim fail to fit the NIR spectral energy distribution (SED) and sub-milli-arcsecond NIR CHARA interferometry. Following recent work, we include an additional gas emission component with similar size scale to the dust rim, inside the sublimation radius, to fit the NIR SED and long-baseline NIR interferometry on MWC275 and AB Aur. In the absence of shielding of star light by gas, we show that the gas-dust transition region in these YSOs will have to contain highly refractory dust, sublimating at ~1850K. Despite having nearly identical structure in the thermal NIR, the outer disks of MWC275 and AB Aur differ substantially. In contrast to the AB Aur disk, MWC275 lacks small grains in the disk atmosphere capable of producing significant 10-20micron emission beyond ~7AU, forcing the outer regions into the "shadow" of the inner disk
description: Accepted for publication in ApJ
ПРОБЛЕМЫ ИНВЕСТИЦИОННОЙ ПРИВЛЕКАТЕЛЬНОСТИ ЭКОНОМИКИ РОССИИ
Creators: name: ИСАЕВА Ю.Д.
Publisher: name: Экономика и бизнес: теория и практика
Year: 2020
Subjects: ИНВЕСТИЦИОННАЯ ПРИВЛЕКАТЕЛЬНОСТЬ РОССИЙСКОЙ ЭКОНОМИКИ
ИНВЕСТИЦИОННЫЙ КЛИМАТ
ПРИОРИТЕТЫ ИНВЕСТИЦИОННОЙ ПОЛИТИКИ
ИНОСТРАННЫЕ ИНВЕСТИЦИИ
INVESTMENT ATTRACTIVENESS OF THE RUSSIAN ECONOMY
INVESTMENT CLIMATE
INVESTMENT POLICY PRIORITIES
FOREIGN INVESTMENT

description: В статье раскрываются современные проблемы формирования благоприятного инвестиционного климата в российской экономике, приводятся основные приоритеты инвестиционной политики. Рассмотрены проблемы инвестиционной привлекательности экономики Российской Федерации и подходы к ее повышению, обоснована важность мониторинга инвестиционной привлекательности, необходимость разработки мер, направленных на повышение инвестиционной привлекательности государства и привлечение иностранных инвестиций в его экономику.
An Algorithmic Approach for Identifying Critical Distance Relays for Transient Stability Studies
Creators: Ramin Vakili
Mojdeh Khorsand
Vijay Vittal
Bill Robertson
and Philip Augustin
Publisher: name: IEEE
Year: 2021

This paper proposes an iterative algorithm that uses two methods to identify the critical distance relays to be modeled in stability studies: (i) apparent impedance monitoring, and (ii) the minimum voltage evaluation.
After major disturbances, power system behavior is governed by the dynamic characteristics of its assets and protection schemes. Therefore, modeling protection devices is essential for performing accurate stability studies. Modeling all the protection devices in a bulk power system is an intractable task due to the limitations of current stability software, and the difficulty in updating the setting data for thousands of protection devices. One of the critical protection schemes that is not adequately modeled in stability studies is distance relaying. Therefore, this paper proposes an iterative algorithm that uses two methods to identify the critical distance relays to be modeled in stability studies: (i) apparent impedance monitoring, and (ii) the minimum voltage evaluation (MVE). The algorithm is implemented in Python 3.6 and uses the GE positive sequence load flow analysis (PSLF) software for performing stability studies. The performance of the algorithm is evaluated on the Western Electricity Coordinating Council (WECC) system data representing the 2018 summer-peak load. The results of the case studies representing various types of contingencies show that to have an accurate assessment of system behavior, modeling the critical distance relays identified by the algorithm suffices, and there is no need for modeling all the distance relays.
ТЕНДЕНЦИИ РАЗВИТИЯ ЧЕЛОВЕЧЕСКОГО КАПИТАЛА В СОВРЕМЕННЫХ УСЛОВИЯХ
Creators: name: ИШМУРАТОВА Д.Ф.
Publisher: name: Экономика и бизнес: теория и практика
Year: 2020
Subjects: ЧЕЛОВЕЧЕСКИЙ КАПИТАЛ
ПРОФЕССИОНАЛЬНО-КВАЛИФИКАЦИОННЫЙ ДИСБАЛАНС
ЦИФРОВИЗАЦИЯ
КОМПЕТЕНЦИИ
РЫНОК ТРУДА
HUMAN CAPITAL
PROFESSIONAL AND QUALIFICATION IMBALANCE
DIGITALIZATION
COMPETENCIES
LABOR MARKET

description: В статье рассматриваются современные особенности формирования и развития человеческого капитала. Определено, что динамичное изменение социально-экономической среды оказывает влияние на изменение его компонентов в части знаний и навыков. В современных условиях фактором успешной конкуренции на рынке труда является обладание широким спектром компетенций и навыков, относящихся как к конкретной профессии, так и не являющихся узкоспециализированными, связанными с умением взаимодействовать и решать разнообразные задачи в целом.
Imaging High Jitter, Very Fast Phenomena: A Remedy for Shutter Lag
Creators: name: Hoppis, Noah
name: Sturge, Kathryn M.
name: Barney, Jonathan E.
name: Beaudoin, Brian L.
name: Bussio, Ariana M.
name: Hammell, Ashley E.
name: Henderson, Samuel L.
name: Krutzler, James E.
name: Lichthardt, Joseph P.
name: Mueller, Alexander H.
name: Smith, Karl
name: Tappan, Bryce C.
name: Koeth, Timothy W.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Dielectric breakdown is an example of a natural phenomenon that occurs on very short time scales, making it incredibly difficult to capture optical images of the process. Event initiation jitter is one of the primary challenges, as even a microsecond of jitter time can cause the imaging attempt to fail. Initial attempts to capture images of dielectric breakdown with a gigahertz frame rate camera and an exploding bridge wire initiation were stymied by high initiation jitter. Subsequently, a novel optical delay line apparatus was developed in order to effectively circumvent the jitter and reliably image dielectric breakdown. The design and performance of the optical delay line apparatus are presented. The optical delay line increased the image capture success rate from 25% to 94% while also permitting enhanced temporal resolution and has applications for use in imaging other high-jitter, extremely fast phenomena.
description: 11 pages, 6 figures, accepted manuscript
Ground-state properties of one-dimensional anyon gases
Creators: name: Hao, Yajiang
name: Zhang, Yunbo
name: Chen, Shu
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We investigate the ground state of the one-dimensional interacting anyonic system based on the exact Bethe ansatz solution for arbitrary coupling constant ($0\leq c\leq \infty$) and statistics parameter ($0\leq κ\leq π$). It is shown that the density of state in quasi-momentum $k$ space and the ground state energy are determined by the renormalized coupling constant $c'$. The effect induced by the statistics parameter $κ$ exhibits in the momentum distribution in two aspects: Besides the effect of renormalized coupling, the anyonic statistics results in the nonsymmetric momentum distribution when the statistics parameter $κ$ deviates from 0 (Bose statistics) and $π$ (Fermi statistics) for any coupling constant $c$. The momentum distribution evolves from a Bose distribution to a Fermi one as $κ$ varies from 0 to $π$. The asymmetric momentum distribution comes from the contribution of the imaginary part of the non-diagonal element of reduced density matrix, which is an odd function of $κ$. The peak at positive momentum will shift to negative momentum if $κ$ is negative.
description: 6 pages, 5 figures, published version in Phys. Rev. A
Generative Adversarial Networks-Based Synthetic PMU Data Creation for Improved Event Classification
Creators: Xiangtian Zheng
Bin Wang
Dileep Kalathil
and Le Xie
Publisher: name: IEEE
Year: 2021

A two-stage machine learning-based approach for creating synthetic phasor measurement unit data is proposed in this article.
A two-stage machine learning-based approach for creating synthetic phasor measurement unit (PMU) data is proposed in this article. This approach leverages generative adversarial networks (GAN) in data generation and incorporates neural ordinary differential equation (Neural ODE) to guarantee underlying physical meaning. We utilize this approach to synthetically create massive eventful PMU data, which would otherwise be difficult to obtain from the real world due to the critical energy infrastructure information (CEII) protection. To illustrate the utility of such synthetic data for subsequent data-driven methods, we specifically demonstrate the application of using synthetic PMU data for event classification by scaling up the real data set. The addition of the synthetic PMU data to a small set of real PMU data is shown to have improved the event classification accuracy by 2 to 5 percent.
Exact solutions of interacting dissipative systems via weak symmetries
Creators: name: McDonald, Alexander
name: Clerk, Aashish A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We demonstrate how the presence of continuous weak symmetry can be used to analytically diagonalize the Liouvillian of a class Markovian dissipative systems with arbitrary strong interactions or nonlinearity. This enables an exact description of the full dynamics and dissipative spectrum. Our method can be viewed as implementing an exact, sector-dependent mean-field decoupling, or alternatively, as a kind of quantum-to-classical mapping. We focus on two canonical examples: a nonlinear bosonic mode subject to incoherent loss and pumping, and an inhomogeneous quantum Ising model with arbitrary connectivity and local dissipation. In both cases, we calculate and analyze the full dissipation spectrum. Our method is applicable to a variety of other systems, and could provide a powerful new tool for the study of complex driven-dissipative quantum systems.
Dark Scalar Doublets and Neutrino Tribimaximal Mixing from A_4 Symmetry
Creators: name: Ma, Ernest
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the context of A_4 symmetry, neutrino tribimaximal mixing is achieved through the breaking of A_4 to Z_3 (Z_2) in the charged-lepton (neutrino) sector respectively. The implied vacuum misalignment of the (1,1,1) and (1,0,0) directions in A_4 space is a difficult technical problem, and cannot be treated without many auxiliary fields and symmetries (and perhaps extra dimensions). It is pointed out here that an alternative scenario exists with A_4 alone and no redundant fields, if neutrino masses are "scotogenic", i.e. radiatively induced by dark scalar doublets as recently proposed.
description: 8 pages, 2 figures, 1 reference and 1 paragraph added
Integral order photonic RF and microwave signal processors based on soliton crystal Kerr micro-combs
Creators: name: Tan, Mengxi
name: Xu, Xingyuan
name: Moss, David J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applied Physics (physics.app-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Soliton crystal micro-combs are powerful tools as sources of multiple wavelength channels for radio frequency (RF) signal processing. They offer a compact device footprint, large numbers of wavelengths, very high versatility, and wide Nyquist bandwidths. Here, we demonstrate integral order RF signal processing functions based on a soliton crystal micro-comb, including a Hilbert transformer and first- to third-order differentiators. We compare and contrast results achieved and the tradeoffs involved with varying comb spacing, tap design methods, as well as shaping methods.
description: 12 pages, 10 figures, 110 references, 1 table
Two-dimensional ring-like vortex and multisoliton nonlinear structures at the upper-hybrid resonance
Creators: name: Lashkin, V. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Two-dimensional (2D) equations describing the nonlinear interaction between upper-hybrid and dispersive magnetosonic waves are presented. Nonlocal nonlinearity in the equations results in the possibility of existence of stable 2D nonlinear structures. A rigorous proof of the absence of collapse in the model is given. We have found numerically different types of nonlinear localized structures such as fundamental solitons, radially symmetric vortices, nonrotating multisolitons (two-hump solitons, dipoles and quadrupoles), and rotating multisolitons (azimuthons). By direct numerical simulations we show that 2D fundamental solitons with negative hamiltonian are stable.
description: 8 pages, 6 figures, submitted to Phys. Plasmas
NUMERICAL STUDY OF AXIAL LOAD EFFECT ON THE SEISMIC BEHAVIOR OF SHEAR LINKS IN ECCENTRICALLY BRACED FRAMES
Creators: name: Dastmalchi, Shahrzad
Publisher: name: Digital Repository at the University of Maryland
Year: 2014
Subjects: subject: Civil engineering
subject: FOS: Civil engineering

description: High ductility and stiffness of the eccentrically braced frames (EBFs) are provided by the isolated beam segments between two braces or between brace and column which is referred as links. The remarkable hysteresis behavior of shear links in EBFs is so appealing to seismic design that they have also been used in other types of structure applications such as fuse members that provides required ductility and energy dissipation. Therefore, using shear links is becoming more and more popular not only in buildings but also in bridges.

In order to assure that shear links provide required strength and ductility of the structure, studying the effect of key parameters on hysteretic behavior of shear links is of interest. High axial load is one of the key parameters which affect hysteretic behavior of shear links because premature flange local buckling might occur and results in deterioration in shear capacity, ductility, and energy dissipation of the links.

The effect of high axial load ratio on shear capacity and ductility of shear links is studied by numerical simulation in this research. Finite element (FE) model was calibrated using experimental data for two link beams, including one link subjected to high axial load ratio. Nonlinear FE analysis of twenty-two shear link specimens was carried out to determine the plastic shear capacity of shear links with different link length and axial load level. In comparison with the formula given in 2010 AISC Seismic Provisions, a reduction factor is proposed to modify the code-specified design equation. Furthermore, local buckling due to high axial load was observed in link specimens, which precludes the shear links from providing the code-specified rotation capacity. The detrimental effect of high axial load ratio on ductility of the shear links was also observed from cyclic loading analysis of six link specimens in this research.
ИССЛЕДОВАНИЕ ДЕБИТОРСКОЙ ЗАДОЛЖЕННОСТИ РОССИЙСКИХ ТОРГОВЫХ ПРЕДПРИЯТИЙ ХИМИЧЕСКОЙ ОТРАСЛИ
Creators: name: РАСТЕГАЕВА Ф.С.
name: КАВЫЕВА Г.Х.
Publisher: name: Экономика и бизнес: теория и практика
Year: 2020
Subjects: ДЕБИТОРСКАЯ ЗАДОЛЖЕННОСТЬ
ТОРГОВЫЕ ПРЕДПРИЯТИЯ ХИМИЧЕСКОЙ ОТРАСЛИ
ПОКАЗАТЕЛИ ДЕБИТОРСКОЙ ЗАДОЛЖЕННОСТИ
ФАКТОРНЫЙ АНАЛИЗ
ACCOUNTS RECEIVABLES
TRADE ENTERPRISES OF CHEMICAL PRODUCTS
FACTORS OF ACCOUNTS RECEIVABLES
FACTOR ANALYSIS

description: Вопрос проблемы эффективного управления дебиторской задолженностью для торговых компаний остается по-прежнему актуальным, так как она занимает существенную удельную долю в составе оборотных активов и непосредственно связана с получением дохода. В статье описывается исследование дебиторской задолженности российских торговых предприятий химической отрасли посредством анализа финансовых показателей на макро- и микроуровнях. Подробно рассмотрен факторный анализ дебиторской задолженности на примере уфимского предприятия ООО «Химсервис».
HEXAVALENT CHROMIUM QUANTIFICATION AND REMEDIATION IN SOILS AND WASTE MATERIALS
Creators: name: DeSarle, Catherine Rose
Publisher: name: Digital Repository at the University of Maryland
Year: 2014
Subjects: subject: Soil sciences
subject: Environmental science
subject: Chemistry
subject: chromium
subject: contaminated soil
subject: extraction method
subject: method-induced reduction
subject: remediation

description: Hexavalent chromium (Cr(VI)) is a carcinogen and a pollutant of soils and natural waters. The standard method to extract and quantify total Cr(VI) in soils and waste materials was modified to prevent method-induced reduction of Cr(VI) by not heating (95°C) but shaking (100 cycles/min) at 23°C, followed by quantification using the 1,5-diphenylcarbazide method or ion chromatography. Forms of carbon and Cr(VI) (mineralogical vs. soluble) significantly influenced method-induced reduction. The proposed method should be used with samples containing ≥ 10 g/kg organic C. The new method was used to study the reduction of Cr(VI) in soils with Fe(II), Fe(III), and organic carbon, and the Cr in remediated soils was fractionated. Fe(II) in combination with Fe(III) was the most effective at reducing Cr(VI) and immobilizing newly-reduced Cr(III). The extraction and quantification refinements are relevant to accurate and precise metrics for Cr(VI) and its remediation in soils.
Improving I/O Performance for Exascale Applications through Online Data Layout Reorganization
Creators: name: Wan, Lipeng
name: Huebl, Axel
name: Gu, Junmin
name: Poeschel, Franz
name: Gainaru, Ana
name: Wang, Ruonan
name: Chen, Jieyang
name: Liang, Xin
name: Ganyushin, Dmitry
name: Munson, Todd
name: Foster, Ian
name: Vay, Jean-Luc
name: Podhorszki, Norbert
name: Wu, Kesheng
name: Klasky, Scott
Publisher: name: arXiv
Year: 2021
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: The applications being developed within the U.S. Exascale Computing Project (ECP) to run on imminent Exascale computers will generate scientific results with unprecedented fidelity and record turn-around time. Many of these codes are based on particle-mesh methods and use advanced algorithms, especially dynamic load-balancing and mesh-refinement, to achieve high performance on Exascale machines. Yet, as such algorithms improve parallel application efficiency, they raise new challenges for I/O logic due to their irregular and dynamic data distributions. Thus, while the enormous data rates of Exascale simulations already challenge existing file system write strategies, the need for efficient read and processing of generated data introduces additional constraints on the data layout strategies that can be used when writing data to secondary storage. We review these I/O challenges and introduce two online data layout reorganization approaches for achieving good tradeoffs between read and write performance. We demonstrate the benefits of using these two approaches for the ECP particle-in-cell simulation WarpX, which serves as a motif for a large class of important Exascale applications. We show that by understanding application I/O patterns and carefully designing data layouts we can increase read performance by more than 80%.
description: 12 pages, 15 figures, accepted by IEEE Transactions on Parallel and Distributed Systems
EfficientPPS: Part-aware Panoptic Segmentation of Transparent Objects for Robotic Manipulation
Creators: name: Alt, Benjamin
name: Nguyen, Minh Dang
name: Hermann, Andreas
name: Katic, Darko
name: Jäkel, Rainer
name: Dillmann, Rüdiger
name: Sax, Eric
Publisher: name: arXiv
Year: 2023
Subjects: subject: Robotics (cs.RO)
subject: Artificial Intelligence (cs.AI)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences
subject: I.4.6; I.2.10; I.2.9
subject: 68T45

description: The use of autonomous robots for assistance tasks in hospitals has the potential to free up qualified staff and im-prove patient care. However, the ubiquity of deformable and transparent objects in hospital settings poses signif-icant challenges to vision-based perception systems. We present EfficientPPS, a neural architecture for part-aware panoptic segmentation that provides robots with semantically rich visual information for grasping and ma-nipulation tasks. We also present an unsupervised data collection and labelling method to reduce the need for human involvement in the training process. EfficientPPS is evaluated on a dataset containing real-world hospital objects and demonstrated to be robust and efficient in grasping transparent transfusion bags with a collaborative robot arm.
description: 8 pages, 8 figures, presented at the 56th International Symposium on Robotics (ISR Europe)
The largest oxigen bearing organic molecule repository
Creators: name: Requena-Torres, M. A.
name: Martin-Pintado, J.
name: Martin, S.
name: Morris, M. R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the first detection of complex aldehydes and isomers in three typical molecular clouds located within 200pc of the center of our Galaxy. We find very large abundances of these complex organic molecules (COMs) in the central molecular zone (CMZ), which we attribute to the ejection of COMs from grain mantles by shocks. The relative abundances of the different COMs with respect to that of CH3OH are strikingly similar for the three sources, located in very different environments in the CMZ. The similar relative abundances point toward a unique grain mantle composition in the CMZ. Studying the Galactic center clouds and objects in the Galactic disk having large abundances of COMs, we find that more saturated molecules are more abundant than the non-saturated ones. We also find differences between the relative abundance between COMs in the CMZ and the Galactic disk, suggesting different chemical histories of the grain mantles between the two regions in the Galaxy for the complex aldehydes. Different possibilities for the grain chemistry on the icy mantles in the GC clouds are briefly discussed. Cosmic rays can play an important role in the grain chemistry. With these new detections, the molecular clouds in the Galactic center appear to be one of the best laboratories for studying the formation of COMs in the Galaxy.
description: 20 pages, 4 figures, accepted in ApJ
Slides for: Addressing the Scalability and Privacy Issues of Energy Communities
Creators: Pierluigi Siano
Publisher: name: IEEE
Year: 2021

Slides for Webinar: Addressing the Scalability and Privacy Issues of Energy Communities
Modern power systems are evolving from a centralized paradigm, according to which electrical energy was mainly generated by large power plants at the transmission level, to a new model where Distributed Generation (DG), often based on Renewable Energy Sources (RES) represents a relevant portion of the produced electrical energy. In this new model, the provision of ancillary services to the Transmission System Operator (TSO) should take into account the possible flexibility furnished by new distributed resources, such as dispersed and small generators, also based on RES, and frequently endowed with small batteries. In particular, distributed Battery Energy Storage Systems (BESSs), also of small scale, that were mainly used to decrease the uncertainty due to RES and to increase the energy self-consumption for the end-user, can be also managed to provide energy flexibility to the TSO. A novel scalable and privacy-preserving distributed parallel optimization that allows the participation of large-scale aggregation of prosumers with residential PVbattery systems in the market for the ancillary service (ASM) is proposed in this presentation. To consider both reserve capacity and reserve energy, dayahead and real-time stages in the ASM are considered.

A method, based on hybrid Variable Neighbourhood Search (VNS) and distributed parallel optimization is designed for the day ahead and real-time optimization. Different distributed optimization methods are compared and designed and a new distributed optimization method based on Linear Programming (LP) is designed that overcomes previous methods based on integer and Quadratic programming (QP). The proposed LP-based optimization can be easily coded up and implemented on microcontrollers and connected to a designed Internet of Things (IoT) based architecture. As confirmed by simulation results, carried out considering different realistic case studies, both day-ahead and real-time proposed optimization methods, by allocating the computational effort among local resources, are highly scalable and fulfil the privacy of prosumers.
Stable and compact RF-to-optical link using lithium niobate on insulator waveguides
Creators: name: Obrzud, Ewelina
name: Denis, Séverine
name: Sattari, Hamed
name: Choong, Gregory
name: Kundermann, Stefan
name: Dubochet, Olivier
name: Despont, Michel
name: Lecomte, Steve
name: Ghadimi, Amir
name: Brasch, Victor
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applied Physics (physics.app-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Optical frequency combs have become a very powerful tool in metrology and beyond thanks to their ability to link radio frequencies with optical frequencies via a process known as self-referencing. Typical self-referencing is accomplished in two steps: the generation of an octave-spanning supercontinuum spectrum and the frequency-doubling of one part of that spectrum. Traditionally, these two steps have been performed by two separate optical components. With the advent of photonic integrated circuits, the combination of these two steps has become possible in a single small and monolithic chip. One photonic integrated circuit platform very well suited for on-chip self-referencing is lithium niobate on insulator - a platform characterised by high second and third order nonlinearities. Here we show that combining a lithium niobate on insulator waveguide with a silicon photodiode results in a very compact and direct low-noise path towards self-referencing of mode-locked lasers. Using digital servo electronics the resulting frequency comb is fully stabilized. Its high degree of stability is verified with an independent out-of-loop measurement and is quantified to be 6.8 mHz. Furthermore, we show that the spectrum generated inside the lithium niobate waveguide remains stable over many hours.
Uncertainty-Aware Reliable Text Classification
Creators: name: Hu, Yibo
name: Khan, Latifur
Publisher: name: arXiv
Year: 2021
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Deep neural networks have significantly contributed to the success in predictive accuracy for classification tasks. However, they tend to make over-confident predictions in real-world settings, where domain shifting and out-of-distribution (OOD) examples exist. Most research on uncertainty estimation focuses on computer vision because it provides visual validation on uncertainty quality. However, few have been presented in the natural language process domain. Unlike Bayesian methods that indirectly infer uncertainty through weight uncertainties, current evidential uncertainty-based methods explicitly model the uncertainty of class probabilities through subjective opinions. They further consider inherent uncertainty in data with different root causes, vacuity (i.e., uncertainty due to a lack of evidence) and dissonance (i.e., uncertainty due to conflicting evidence). In our paper, we firstly apply evidential uncertainty in OOD detection for text classification tasks. We propose an inexpensive framework that adopts both auxiliary outliers and pseudo off-manifold samples to train the model with prior knowledge of a certain class, which has high vacuity for OOD samples. Extensive empirical experiments demonstrate that our model based on evidential uncertainty outperforms other counterparts for detecting OOD examples. Our approach can be easily deployed to traditional recurrent neural networks and fine-tuned pre-trained transformers.
description: KDD 2021
Invariant-mass distribution of cc-bar in Upsilon(1S) -> cc-bar + X
Creators: name: Chung, Hee Sok
name: Kim, Taewon
name: Lee, Jungil
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We calculate the invariant-mass distribution for the cc-bar pair produced in the inclusive Upsilon(1S) decay based on the color-singlet mechanism of the nonrelativistic quantum chromodynamics factorization approach at leading order in the bottom-quark velocity v_b in the meson rest frame. As the short-distance processes, we consider bb-bar -> g^*gg followed by g^* -> cc-bar and bb-bar -> gamma^* -> cc-bar at leading order in the strong coupling. The invariant-mass distribution of the bb-bar -> cc-bar gg contribution has a sharp peak just above the threshold and that of the bb-bar -> gamma^* -> cc-bar channel is concentrated at the maximally allowed kinematic end point. We predict that Gamma[Upsilon(1S) -> cc-bar+X]/Gamma[Upsilon(1S)->light hadrons] = 0.065 alpha_s, which is smaller than a previous result by about 20%.
description: 15 pages, 1 figure
Recoil effects in bound muon decay
Creators: name: Brookfield, Gary John
Publisher: name: University of British Columbia
Year: 2010

description: An unbound muon at rest decays into two neutrinos and an electron. Momentum conservation forbids the electron to have energy greater than one half the muon mass. However, if the muon is bound to a nucleus, its orbital motion -and nuclear recoil make it possible for the decay electron energy to approach the muon mass. These high energy electrons are an important background effect in the search for muon to electron conversion. This thesis investigates recoil corrections to the electron spectrum and asymmetry from bound muon decay using an effective potential approach. This approach simplifies the equations describing a finitely massive nucleus and electron (or muon) interacting electromagnetically, to a one particle Dirac equation for a potential well. For large Z, calculation of the electron spectrum requires including the effects of finite nuclear size and electron wave function distortion. Such a calculation would involve numerically generated wave functions and numerical integrations, and is not done here, though the applicable methods and general formulas are presented. For small Z the calculation can proceed analytically and an expression has been derived for the spectrum and asymmetry including recoil.
ИНДУСТРИАЛЬНЫЙ ЛАНДШАФТ ТЕРРИТОРИИ: ЭВОЛЮЦИЯ ФОРМ И ПЕРСПЕКТИВЫ РАЗВИТИЯ
Creators: name: КАПЛЮК Е.В.
Publisher: name: Экономика и бизнес: теория и практика
Year: 2020
Subjects: ИНДУСТРИАЛЬНЫЙ ЛАНДШАФТ
ФОРМА
ФОРМООБРАЗОВАНИЕ
ПРОСТРАНСТВЕННОЕ РАЗВИТИЕ
ИННОВАЦИОННОЕ РАЗВИТИЕ
INDUSTRIAL LANDSCAPE
FORM
SHAPING
SPATIAL DEVELOPMENT
INNOVATIVE DEVELOPMENT

description: В статье приведены результаты исследования формообразования в промышленности в императивах инновационного развития экономики. Проведен структурно-динамический анализ использования и разработки передовых производственных технологий, выявлены перспективные технологии цифровизации производства. Представлена эволюция формообразования в промышленности, выделены этапы перспективные формы.
Homocaligidae
Creators: name: Fan, Qing-Hai
name: Zhang, Zhi-Qiang
Publisher: name: Zenodo
Year: 2004
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Actinedida
Homocaligidae

description: Family Homocaligidae   Homocaligidae Wood, 1969: 712. Type genus: Homocaligus Berlese, 1910, by original designation.
 Wood (1969) described the chelicerae of Homocaligidae as being basally completely separated. The bases of chelicerae are actually conjunct to each other, similar to some genera of Stigmaeidae (Caligohomus Habeeb, Cheylostigmaeus Willmann, Postumius Kuznetsov and Villersiella Willmann). He also described short peritremes arising laterally at the bases of chelicerae and ending above the first pair of coxae, and with ventral setae 3a absent. In fact, he misinterpreted the podocephalic canals as peritremes and 3a as 3b.
 So far two genera are known worldwide: Annerosella and Homocaligus.
description: Published as part of Fan, Qing-Hai & Zhang, Zhi-Qiang, 2004, in the collection of H. Habeeb, pp. 1-28 in Zootaxa 763 on page 3, DOI: 10.5281/zenodo.169564
Supercritical Fluid Extraction of Hydrocarbons from the Marcellus Shale by Using CO2
Creators: name: Jarboe, Palma Jean
Publisher: name: Digital Repository at the University of Maryland
Year: 2014
Subjects: subject: Petroleum geology
subject: Geochemistry
subject: FOS: Earth and related environmental sciences
subject: Carbon Dioxide
subject: Hydrocarbons
subject: Marcellus Shale
subject: Supercritical Fluid Extraction

description: Supercritical carbon dioxide was used to extract n-aliphatic hydrocarbons from samples of Marcellus shale, and to evaluate recovery as a function of sample matrix particle size (sieve size). Results show that supercritical CO2 has the potential to liberate diesel-range n-aliphatic hydrocarbons from high-maturity shale at estimated in situ pressure and temperature conditions. Total quantity of resolvable n-aliphatic hydrocarbons ranged from approximately 0.3 - 12 milligrams of hydrocarbon per gram of total organic carbon. No significant differences in extracted hydrocarbons were observed between crushed samples of different sieve sizes (1000 - 500 µm, 250 - 125 µm, and 63 - 25 µm). However, some increase in hydrocarbon extraction efficiency was seen as a function of exposed surface area. Additionally, a slight positive correlation was also observed between hydrocarbon recovery and S1 (free oil content) warranting further investigation.
УПРАВЛЕНИЕ РИСКАМИ В ЭКОНОМИКЕ, В ЦЕЛЯХ ПОВЫШЕНИЯ НАДЕЖНОСТИ ПРИНИМАЕМЫХ РЕШЕНИЙ
Creators: name: КАРЕЙША П.Г.
Publisher: name: Экономика и бизнес: теория и практика
Year: 2020
Subjects: ЭКОНОМИКА
УПРАВЛЕНИЕ
УПРАВЛЕНЧЕСКОЕ РЕШЕНИЕ
РИСК
АНАЛИЗ
ПРОГНОЗИРОВАНИЕ
ЗАДАЧИ
ECONOMY
MANAGEMENT
MANAGEMENT DECISION
RISK
ANALYSIS
FORECASTING
TASKS

description: В данной статье рассматриваются вопросы прогнозирования и оценки экономических рисков. Современная система управления - это сложный и многогранный процесс и в нынешних условиях, для руководства предприятий характерно принятие управленческих решений, как реакции на возникающие проблемы. Причины проблем могут быть разнообразны: это и недостаток информации, и такое понятие, как «форс-мажор», а иными словами - «элемент случайности», когда практически невозможно рассчитать и предсказать последствия принятия того, либо иного решения. Свою лепту привносит и недобросовестная конкуренция. Однако рисками можно управлять, используя различные инструменты и предотвращать наступление критических последствий слабо просчитанного, непродуманного управленческого решения, таким образом, снижая степень риска. Исследования в данной области показывают, что в настоящее время в Российской Федерации крайне высокий процент ухода с рынков мелких (и не только) компаний, закрытие и банкротство фирм. Предприятия малого и среднего бизнеса, как и крупный бизнес в нашей стране, постоянно находятся в зоне риска. Таким образом, процесс разработки, принятия и реализации управленческих решений - это реализация объективных законов, присущих этому процессу.
Phase behavior of a fluid with competing attractive and repulsive interactions
Creators: name: Archer, Andrew J.
name: Wilding, Nigel B.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Fluids in which the interparticle potential has a hard core, is attractive at moderate separations, and repulsive at greater separations are known to exhibit novel phase behavior, including stable inhomogeneous phases. Here we report a joint simulation and theoretical study of such a fluid, focusing on the relationship between the liquid-vapor transition line and any new phases. The phase diagram is studied as a function of the amplitude of the attraction for a certain fixed amplitude of the long ranged repulsion. We find that the effect of the repulsion is to substitute the liquid-vapor critical point and a portion of the associated liquid-vapor transition line, by two first order transitions. One of these transitions separates the vapor from a fluid of spherical liquidlike clusters; the other separates the liquid from a fluid of spherical voids. At low temperature, the two transition lines intersect one another and a vapor-liquid transition line at a triple point. While most integral equation theories are unable to describe the new phase transitions, the Percus Yevick approximation does succeed in capturing the vapor-cluster transition, as well as aspects of the structure of the cluster fluid, in reasonable agreement with the simulation results.
description: 15 pages, 20 figures
SUSTAINABLE CULTURES: Fusing Local and Global traditions
Creators: name: Ensor, David Ensor B.
Publisher: name: Digital Repository at the University of Maryland
Year: 2014
Subjects: subject: Architecture
subject: FOS: Civil engineering

description: Within the modern world, a conflict arises between the existence of "universal" and "local".  The result of the struggle has been a fading of our local traditions and customs.  Acknowledged as a vital component of our being and interpreted as the essence of culture, the "local" is seen as an endangered resource.  This proposes the question of how, can, and does architecture sustain a (the local) culture? To explore the question, this thesis uses the architectural program type of the library as the vehicle of study.  A programmatic and spatial diagram of the library is applied to three different towns within a similar climate and geographical region. The towns of Alexandria, VA, and Chestertown and Cumberland, MD were chosen because each one possesses a strong sense of place and identity.  Using the theories of regionalism, each town is analyzed to investigate the nuances of the culture.  The process of design begins with the acknowledgment and understanding of the existing pattern of development.  The understanding leads to an interpretative and transformative process to reveal a dialog between "Universal" and "Local".  The architecture of each library reflects the characteristics innate to a library as it embodies the relevance of the local culture.
PES Web-based Tutorial Series: An Introduction to Digital Switchgear, Session 1: Introducing Digital Switchgear & the Role of Sensors
Creators: Dr. Harsh Karandikar and Ron Pate
Publisher: name: IEEE
Year: 2020

This Tutorial Slide Presentation: Medium voltage (MV) switchgear is a key element of the electrical energy distribution system. The Digital Switchgear concept, at the MV distribution level, presents many operational advantages and is inherently safe. It is based on the combination of technologies such as current and voltage sensors and IEC 61850 incorporated into modern numerical IEDs. When these technologies are combined in an optimal way the advantages of digital switchgear include increased safety, space, weight and energy savings, flexibility towards changing load flows, the ability to more easily handle last minute load changes, quicker delivery times and the possibility of late customization. In this tutorial, we will cover the background and characteristics of Digital Switchgear and contrast it with conventional switchgear. Two key component technologies, current and voltage sensors and IEC 61850 based protection and control will be covered in detail. The practical experiences gained from the early projects in the field will be presented.
This Tutorial Slide Presentation: Medium voltage (MV) switchgear is a key element of the electrical energy distribution system. The Digital Switchgear concept, at the MV distribution level, presents many operational advantages and is inherently safe. It is based on the combination of technologies such as current and voltage sensors and IEC 61850 incorporated into modern numerical IEDs. When these technologies are combined in an optimal way the advantages of digital switchgear include increased safety, space, weight and energy savings, flexibility towards changing load flows, the ability to more easily handle last minute load changes, quicker delivery times and the possibility of late customization. In this tutorial, we will cover the background and characteristics of Digital Switchgear and contrast it with conventional switchgear. Two key component technologies, current and voltage sensors and IEC 61850 based protection and control will be covered in detail. The practical experiences gained from the early projects in the field will be presented.
Parasitism of Trichoptera by Bunodera mediovitellata (Digenea:Allocreadiidae) and the encapsulation responses
Creators: name: Caira, Janine Nicole
Publisher: name: University of British Columbia
Year: 2010

description: The incidence of parasitism by Bunodera mediovitellata in Trichoptera in Tin Can Creek was investigated. Larvae of Lepidostoma roafi had a low incidence of infection , while Psychoglypha alascensis larvae had a high incidence of infection. The encapsulation reactions of these Trichoptera larvae to internal Epon implants, and metacercariae of the parasite encysted within the silk glands, were examined in vivo to determine the details of the cellular encapsulation reactions of Trichoptera to foreign objects in both of these sites, and to determine which hemocytes are involved in the reaction. The hemocytes of larvae of P. alascensis were capable of encapsulating Epon implants within the hemocoele; the reaction took approximately twenty days longer than those of other insects that have been maintained at 20°C. The hemocytes of larvae of P. alascensis are also capable of encapsulating the metacercariae of their natural parasite B. mediovitellata in the silk glands despite the normal absence of hemocytes from the silk gland lumen. The hemocyte capsules around both the non-living and living objects was typical of the 'ordinary encapsulation reaction' described by Salt (1970). The capsule consisted of an inner layer of flattened cells which were densely packed and an outer layer of cells which were not flattened to the same extent as those of the inner layer. The hemocytes which took part in both capsules around implants and capsules around parasites were flattened elongated hemocytes which probably correspond to plasmatocytes or granulocytes. However, the production of a Summary Fate Map of free circulating hemocytes demonstrated that hemocyte types are stages in the development of a number of lines of hemocyte types. It appears that the hemocytes taking part in the encapsulation reactions belong to two of these lines of hemocyte types.