bluuebunny/crossref_metadata_2025_split huggingface dataset:
Influence of ambient condition on off-state current of polymer-blend transistors based on 6,13-bis(triisopropylsilylethynyl) pentacene with deposition of molybdenum trioxide
Authors: Mizoguchi Rei , Akiyama Naoki , Hiruta Sayaka , Kobayashi Masaki , Kashiwazaki Masahiro , Onojima Norio 
Published: March 2022

Abstract
We have fabricated blend films comprising 6,13-bis(triisopropylsilylethynyl) pentacene (TIPS pentacene) as a semiconducting small molecule and poly(methyl methacrylate) (PMMA) as an insulating polymer by electrostatic spray deposition (ESD). A thin film (5 nm) of molybdenum trioxide (MoO3) was evaporated on the entirety of the active layer surface. Then, we found that the off-state current in OFETs using the TIPS pentacene/PMMA blend films apparently increased. This result probably indicates the formation of a conductive surface channel due to the MoO3 deposition. In this study, we performed morphological and chemical analyzes. In consequence, we found that only Mo atoms (not together with O atoms) penetrated into TIPS pentacene and oxidation of Mo to MoO
x
could enhance charge transfer between neighboring TIPS pentacene molecules. Furthermore, this study demonstrated that the off-state current could be modulated by changing the ambient condition, such as relative humidity.
Impact of substrate heating during Al deposition and post annealing on surface morphology, Al crystallinity, and Ge segregation in Al/Ge(111) structure
Authors: Matsushita Keigo , Ohta Akio , Taoka Noriyuki , Hayashi Shohei , Makihara Katsunori , Miyazaki Seiichi 
Published: March 2022

Abstract
We have studied the impact of Ge substrate heating during ∼25 nm thick Al deposition and post annealing in N2 ambient on the surface flatness of an Al/Ge(111) structure, the crystallographic structure of the deposited Al layer, and formation of a Ge segregated layer. Surface segregation of Ge atoms on a flat metal surface is an effective means of growing two-dimensional Ge crystals as well as an ultrathin Ge crystalline layer. The surface morphology of the Al/Ge(111) structure becomes flat by substrate heating during Al deposition. The crystallinity of the Al layer on Ge(111) can be improved by both substrate heating and post annealing. Ge segregation on a flat Al(111) surface also occurred by post annealing.
Operational management of ship repair production using digital twins
Authors: Колесникова О.В. , Леонтьев Л.Б. , Лелюхин В.Е. 
Published: March 2022

В статье излагается способ повышения надежности автоматизированной системы управления судоремонтным производством при оперативном возникновении отклонений в ходе выполнения производственного процесса, вызванных различными внешними и внутренними факторами с использованием цифровых двойников. Объектом исследования является автоматизированная система управления цифровыми двойниками на предприятии с мелкосерийным и единичным позаказным производством. Для повышения надежности работы системы в условиях критической загрузки отдельных цехов и участков предлагается автоматизировать оперативное управление. Модернизация системы заключается во введении обратной связи с автоматической корректировкой информационного состояния ядра управления. Ядром управления является информационная база, существующая в квазиметрическом двумерном пространстве с координатами множества нормированных рабочих мест предприятия и реально текущим временем. Таким образом, появляется возможность непосредственного воздействия на постоянно изменяющееся состояние ядра. Для этого организовывается контролируемый доступ к изменению цифрового двойника в соответствии с реальным состоянием производственного процесса. При размещении нового заказа или при возникновении отклонений в ходе производственного процесса выполняется корректировка состояния ядра управления, которая заключается в поиске и размещении невыполненной технологической операций в графике загрузки рабочих мест. Для реализации управления производством на основе цифровых двойников предлагается реорганизация функций и взаимоотношений исполнителей, а также создание соответствующей инфраструктуры.
Article describes a method for increasing reliability of an automated control system ship repair production in event of prompt occurrence of deviations during production process caused by various external and internal factors using digital twins. Object of the research is an automated control system for digital twins at an enterprise small-scale and single-order production. To improve reliability of system under critical load conditions of individual shops and sections, it proposed to automate operational management. Modernization of system consists in providing feedback with automatic correction of information state of control core. The core of management is an information base that exists in a quasi-metric two-dimensional space with coordinates of set workplaces of enterprise and actual current time. Thus, it becomes possible to directly influence constantly changing state of nucleus. For this, controlled access to change digital twin is organized in accordance with real state of production process. When a new order is placed or deviations occur during the production process, state of control core is adjusted. It consists in finding and placing unfulfilled technological operations in workload schedule. To implement production management based on digital twins, it is proposed to reorganize functions and relationships of performers, as well as to create an appropriate infrastructure.
Control algorithms for ballast tanks flushing process
Authors: Чемодаков А.Л. 
Published: March 2022

Значительный объем морских перевозок наливных грузов создал проблему переноса опасных и патогенных водных организмов с судовым водяным балластом. В настоящее время для ее решения применяются различные технологические операции. Наиболее распространенной является процедура замены балласта. Дополнительно, для повышения эффективности данной операции танкеры стали оборудоваться системами промывки балластных танков. Для разработки системы автоматического управления такой системой необходимо соответствующее алгоритмическое обеспечение. В работе представлен алгоритм управления процессом промывки танка изолированного балласта, являющегося частью алгоритма управления балластными операциями. Он предусматривает подготовительные процедуры, синхронный и асинхронный режим работы промывочных сопел, процедуры окончания промывки. При синхронном режиме все сопла работают одновременно, независимо от уровня жидкости. При асинхронном режиме группы промывочных сопел включаются и отключаются в зависимости от уровня в балластном танке. Рассматриваемый алгоритм может быть использован при разработке программного обеспечения системы управления балластной системой танкера.
A significant volume of sea transportation of liquid cargoes has created the problem of transferring dangerous and pathogenic aquatic organisms with ship's ballast water. Currently, various technological operations are used to solve it. The most common is the ballast replacement procedure. Additionally, to increase the efficiency of this operation, tankers are equipped with ballast tank flushing systems. To develop an automatic control system for these systems, appropriate algorithmic support is needed. The paper presents an algorithm for controlling the process of washing an isolated ballast tank flushing, which is part of the ballast operations control algorithm. It provides for preparatory procedures, synchronous and asynchronous operation of the flushing nozzles, and flushing finish procedures. In synchronous mode, all nozzles work simultaneously, regardless of the liquid level. In asynchronous mode, groups of flushing nozzles are switched on and off depending on the level in the ballast tank. The algorithm under consideration can be used in the development of software for the control system of the tanker ballast system.
Is theology more of a field than a father is a king? Modelling semantic relatedness in processing literal and metaphorical statements
Authors: Westbury Chris , Harati Parastoo 
Published: March 2022

AbstractOne major question in the study of metaphors historically is: Are different mechanisms involved in the comprehension of figurative statements versus literal statements? Many studies have addressed this question from a variety of perspectives, with mixed results. Following Harati, Westbury, and Kiaee (Behavior Research Methods, 53, 2214-2225, 2021), we use a computational (word embedding) model of semantics to approach the question in a way that allows for the quantification of the semantic relationship between the two keywords in literal and metaphorical “x is a y” statements. We first demonstrate that almost all literal statements (95.2% of 582 statements we considered) have very high relatedness values. We then show that literality decisions are slower for literal statements with low relatedness and metaphorical statements with high relatedness. We find a similar but smaller effect attributable to the cosine of the vectors representing the two keywords. The fact that the same measurable characteristics allow us to predict which metaphors or literal sentences will have the slowest literality decision times suggests that the same processes underlie the comprehension of both literal and metaphorical statements.
Constraining the Cosmic Baryon Distribution with Fast Radio Burst Foreground Mapping
Authors: Lee Khee-Gan , Ata Metin , Khrykin Ilya S. , Huang Yuxin , Prochaska J. Xavier , Cooke Jeff , Zhang 张 Jielai 洁莱 , Batten Adam 
Published: March 2022

Abstract
The dispersion measure of fast radio bursts (FRBs) encodes the integrated electron density along the line of sight, which is typically dominated by the intergalactic medium contribution in the case of extragalactic FRBs. In this paper, we show that incorporating wide-field spectroscopic galaxy survey data in the foreground of localized FRBs can significantly improve constraints on the partition of diffuse cosmic baryons. Using mock dispersion measures and realistic light-cone galaxy catalogs derived from the Millennium simulation, we define spectroscopic surveys that can be carried out with 4 and 8 m class wide-field spectroscopic facilities. On these simulated surveys, we carry out Bayesian density reconstructions in order to estimate the foreground matter density field. In comparison with the “true” matter density field, we show that these can help reduce the uncertainties in the foreground structures by ∼2–3× compared to cosmic variance. We calculate the Fisher matrix to forecast that N = 30 (96) localized FRBs should be able to constrain the diffuse cosmic baryon fraction to ∼10% (∼5%) and parameters governing the size and baryon fraction of galaxy circumgalactic halos to within ∼20%–25% (∼8%–12%). From the Fisher analysis, we show that the foreground data increase the sensitivity of localized FRBs toward our parameters of interest by ∼25×. We briefly introduce FLIMFLAM, an ongoing galaxy redshift survey that aims to obtain foreground data on ∼30 localized FRB fields.
Constructing the Emission-line Galaxy–Host Halo Connection through Auto and Cross Correlations
Authors: Gao Hongyu , Jing Y. P. , Zheng Yun , Xu Kun 
Published: March 2022

Abstract
We investigate the [O ii] emission-line galaxy (ELG)-host halo connection via auto and cross correlations, and propose a concise and effective method to populate ELGs in dark matter halos without assuming a parameterized halo occupation distribution (HOD) model. Using the observational data from VIMOS Public Extragalactic Redshift Survey, we measure the auto and cross correlation functions between ELGs selected by [O ii] luminosity and normal galaxies selected by stellar mass. Combining the stellar–halo mass relation derived for the normal galaxies and the fraction of ELGs observed in the normal galaxy population, we demonstrate that we can establish an accurate ELG–halo connection. With the ELG–halo connection, we can accurately reproduce the auto and cross correlation functions of ELGs and normal galaxies both in real space and in redshift space, once the satellite fraction is properly reduced. Our method provides a novel strategy to generate ELG mock catalogs for ongoing and upcoming galaxy redshift surveys. We also provide a simple description for the HOD of ELGs.
Mapping the Three-dimensional Lyα Forest Large-scale Structure in Real and Redshift Space*
Authors: Sinigaglia Francesco , Kitaura Francisco-Shu , Balaguera-Antolínez Andrés , Shimizu Ikkoh , Nagamine Kentaro , Sánchez-Benavente Manuel , Ata Metin 
Published: March 2022

Abstract
This work presents a new physically motivated supervised machine-learning method, hydro-bam, to reproduce the three-dimensional Lyα forest field in real and redshift space, which learns from a reference hydrodynamic simulation and thereby saves about seven orders of magnitude in computing time. We show that our method is accurate up to k ∼ 1 h Mpc−1 in the one- (probability distribution function), two- (power spectra), and three-point (bispectra) statistics of the reconstructed fields. When compared to the reference simulation including redshift-space distortions, our method achieves deviations of ≲2% up to k = 0.6 h Mpc−1 in the monopole and ≲5% up to k = 0.9 h Mpc−1 in the quadrupole. The bispectrum is well reproduced for triangle configurations with sides up to k = 0.8 h Mpc−1. In contrast, the commonly adopted Fluctuating Gunn–Peterson approximation shows significant deviations, already when peculiar motions are not included (real space) at configurations with sides of k = 0.2–0.4 h Mpc−1 in the bispectrum and is also significantly less accurate in the power spectrum (within 5% up to k = 0.7 h Mpc−1). We conclude that an accurate analysis of the Lyα forest requires considering the complex baryonic thermodynamical large-scale structure relations. Our hierarchical domain-specific machine-learning method can efficiently exploit this and is ready to generate accurate Lyα forest mock catalogs covering the large volumes required by surveys such as DESI and WEAVE.
Density Profile of the Ambient Circumnuclear Medium in Seyfert 1 Galaxies
Authors: Wang 王 Yijun 倚君 , He 何 Zhicheng 志成 , Mao 毛 Junjie 俊捷 , Kaastra Jelle , Xue 薛 Yongquan 永泉 , Mehdipour Missagh 
Published: March 2022

Abstract
The shape of the ambient circumnuclear medium (ACM) density profile can probe the history of accretion onto the central supermassive black holes in galaxies and the circumnuclear environment. However, due to the limitations of instrument resolution, the density profiles of the ACM for most galaxies remain largely unknown. In this work, we propose a novel method to measure the ACM density profile of active galactic nuclei (AGNs) by the equilibrium between the radiation pressure on the warm absorbers (WAs, a type of AGN outflow) and the drag pressure from the ACM. We study the correlation between the outflow velocity and ionization parameter of WAs in each of the five Seyfert 1 galaxies (NGC 3227, NGC 3783, NGC 4051, NGC 4593, and NGC 5548), inferring that the density profile of the ACM is between n ∝ r
−1.7 and n ∝ r
−2.15 (n is number density and r is distance) from 0.01 pc to parsec scales in these five AGNs. Our results indicate that the ACM density profile in Seyfert 1 galaxies is steeper than the prediction by the spherically symmetric Bondi accretion model and the simulated results of the hot accretion flow, but more in line with the prediction by the standard thin-disk model.
Model-independent Reconstruction of the Cosmological Scale Factor as a Function of Lookback Time
Authors: Zhang Jian-Chen , Zheng Jing , Zhang Tong-Jie 
Published: March 2022

Abstract
We present a model-independent method of reconstructing scale factor against lookback time from the Observational Hubble parameter Data (OHD). The reconstruction method is independent of dynamical models and is only based on the Friedmann–Robertson–Walker metric. We also calculate the propagation of error in the reconstruction process. The reconstruction data errors mainly come from trapezoidal rule approximation and the uncertainty from OHD. Furthermore, the model discrimination ability of original OHD and reconstructed a–t data is discussed under a dimensionless standard method. The a–t data can present the differences between cosmology models more clearly than H–z data by comparing their coefficients of variations. Finally, we add 50 simulated H(z) data to estimate the influence of future observation. More Hubble measurements in the future will help constrain cosmological parameters more accurately.
Quantum Mechanical Simulations of the Radical–Radical Chemistry on Icy Surfaces
Authors: Enrique-Romero Joan , Rimola Albert , Ceccarelli Cecilia , Ugliengo Piero , Balucani Nadia , Skouteris Dimitrios 
Published: March 2022

Abstract
The formation of the interstellar complex organic molecules (iCOMs) is a hot topic in astrochemistry. One of the main paradigms trying to reproduce the observations postulates that iCOMs are formed on the ice mantles covering the interstellar dust grains as a result of radical–radical coupling reactions. We investigate iCOM formation on the icy surfaces by means of computational quantum mechanical methods. In particular, we study the coupling and direct hydrogen abstraction reactions involving the CH3 + X systems (X = NH2, CH3, HCO, CH3O, CH2OH) and HCO + Y (Y = HCO, CH3O, CH2OH), plus the CH2OH + CH2OH and CH3O + CH3O systems. We computed the activation energy barriers of these reactions, as well as the binding energies of all the studied radicals, by means of density functional theory calculations on two ice water models, made of 33 and 18 water molecules. Then, we estimated the efficiency of each reaction using the reaction activation, desorption, and diffusion energies and derived kinetics with the Eyring equations. We find that radical–radical chemistry on surfaces is not as straightforward as usually assumed. In some cases, direct H-abstraction reactions can compete with radical–radical couplings, while in others they may contain large activation energies. Specifically, we found that (i) ethane, methylamine, and ethylene glycol are the only possible products of the relevant radical–radical reactions; (ii) glyoxal, methyl formate, glycolaldehyde, formamide, dimethyl ether, and ethanol formation is likely in competition with the respective H-abstraction products; and (iii) acetaldehyde and dimethyl peroxide do not seem to be likely grain-surface products.
The Magnetic Field versus Density Relation in Star-forming Molecular Clouds
Authors: Auddy Sayantan , Basu Shantanu , Kudoh Takahiro 
Published: March 2022

Abstract
We study the magnetic field to density (B–ρ) relation in turbulent molecular clouds with dynamically important magnetic fields using nonideal three-dimensional magnetohydrodynamic simulations. Our simulations show that there is a distinguishable break density ρ
T between the relatively flat low-density regime and a power-law regime at higher densities. We present an analytic theory for ρ
T based on the interplay of the magnetic field, turbulence, and gravity. The break density ρ
T scales with the strength of the initial Alfvén Mach number



A
0

for sub-Alfvénic (



A
0

<
1

) and trans-Alfvénic (



A
0

∼
1

) clouds. We fit the variation of ρ
T for model clouds as a function of



A
0

, set by different values of initial sonic Mach number



0

and the initial ratio of gas pressure to magnetic pressure β
0. This implies that ρ
T, which denotes the transition in mass-to-flux ratio from the subcritical to the supercritical regime, is set by the initial turbulent compression of the molecular cloud.
Comment conduire un projet de prévention primaire des RPS ? Les enseignements d’un projet deploye dans une pharmacie à usage intérieur d’un hôpital public
Authors: Durand Sandra , Baret Christophe 
Published: March 2022

Compte tenu de la forte exposition des personnels aux facteurs de RPS, les hôpitaux sont encouragés à déployer des projets de prévention. Cependant, les démarches entreprises sont jugées insatisfaisantes compte tenu du fait qu’elles s’inscrivent dans des approches individuelles et non organisationnelles. Elles relèvent essentiellement des niveaux secondaires (formation des individus pour les aider à faire face aux risques) et tertiaires (soutien médical ou psychologique des personnes victimes d’un risque) et non du niveau primaire (identification et traitement des facteurs organisationnels générateurs de risques). Ce dernier est considéré comme étant le plus efficace mais également le plus complexe à décliner car il suppose de remettre en cause l’organisation du travail. Face à cette problématique, la littérature déborde de listes de bonnes pratiques s’inscrivant dans le niveau primaire de prévention mais elle reste relativement muette sur les modalités concrètes qui permettent de les décliner opérationnellement. C’est dans l’objectif de produire des connaissances sur le « comment faire » que nous avons analysé le déploiement d’un projet de prévention des RPS conduit au sein d’une pharmacie à usage intérieur (PUI) d’un centre hospitalier public en France. En adoptant une démarche de recherche-intervention, nous avons analysé les 15 actions de prévention proposées par le groupe de travail ainsi que les mesures d’accompagnement adoptées par l’intervenant pour permettre au groupe de prendre du recul et engager une analyse approfondie du travail.
Fait religieux au travail : vers une structuration d’un objet d'étude en GRH ? De la spécificité du contexte français
Authors: Volia Jean-Christophe , Guillet Olivier , Gaillard Hugo 
Published: March 2022

Cet article est la première synthèse critique des travaux francophones concernant le fait religieux au travail en contexte français, dans la recherche en gestion. La littérature est peu abondante et les chercheurs travaillant sur la question sont encore peu nombreux. Notre travail consiste en une revue systématique de la littérature qui permet de faire émerger sept axes de recherche en management : le management du fait religieux, l’origine religieuse des pratiques de gestion actuelles, développer l’entreprise sur la base de préceptes religieux, l’inspiration religieuse des leaders, l’essence religieuse de la démarche d’entreprenariat, l’approche religieuse de la stratégie marketing et l’éthique religieuse dans la finance. Par ailleurs, il met en avant une certaine prédominance de la religion musulmane dans les recherches de l’axe « management du fait religieux », qui est celui qui suscite le plus l’attention des chercheurs. Enfin, il permet de positionner les recherches sur un continuum contrainte/ressource concernant la manière dont elles considèrent le fait religieux. Notre travail s’achève sur un programme de recherche en trois temps qui comprend un ancrage disciplinaire en GRH appelé par la pratique et permis par la maturité du sujet ; un recours à d’autres méthodologies et une focale sur les besoins des praticiens ; et enfin une ouverture du débat sur la réflexivité des chercheurs, et une réflexion sur l’impact des travaux publiés sur l’objet passé sous examen.
La Covid-19 plus meurtrière pour les hommes que pour les femmes
Authors: Pison Gilles , Meslé France 
Published: March 2022

La surmortalité masculine due à la Covid-19 est plus importante que celle pour l’ensemble des décès à partir de 50 ans, peut-être en raison d’un plus grand risque pour les hommes d’être contaminés, du fait de leurs comportements, et aussi de comorbidités plus fréquentes chez eux, qui pourraient entraîner une plus grande létalité (risque de mourir de la maladie quand on est atteint).