cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Режимы работы электрооборудования электрических станций
Creators: name: ELS IPR BOOKS
Publisher: name: Профобразование
Year: 2021

description: В учебном пособии рассмотрены некоторые особенности конструктивного исполнения основного электрооборудования электрических станций и подстанций и режимы его работы в различных условиях. Издание содержит материалы о работе синхронных генераторов, силовых трансформаторов, асинхронных двигателей. Учебное пособие может быть использовано при изучении дисциплин «Обеспечение обслуживания электрооборудования электрических станций», «Обслуживание электрооборудования электрических станций, сетей и систем» по профессии среднего профессионального образования 13.01.05 «Электромонтер по техническому обслуживанию электростанций и сетей» и специальности 13.02.03 «Электрические станции, сети и системы».
The Stellar Mass Growth of Brightest Cluster Galaxies in the IRAC Shallow Cluster Survey
Creators: name: Lin, Yen-Ting
name: Brodwin, Mark
name: Gonzalez, Anthony H.
name: Bode, Paul
name: Eisenhardt, Peter R. M.
name: Stanford, S. A.
name: Vikhlinin, Alexey
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The details of the stellar mass assembly of brightest cluster galaxies (BCGs) remain an unresolved problem in galaxy formation. We have developed a novel approach that allows us to construct a sample of clusters that form an evolutionary sequence, and have applied it to the Spitzer IRAC Shallow Cluster Survey (ISCS) to examine the evolution of BCGs in progenitors of present-day clusters with mass of (2.5-4.5)x10^{14}Msun. We follow the cluster mass growth history extracted from a high resolution cosmological simulation, and then use an empirical method that infers the cluster mass based on the ranking of cluster luminosity to select high-z clusters of appropriate mass from ISCS to be progenitors of the given set of z=0 clusters. We find that, between z=1.5 and 0.5, the BCGs have grown in stellar mass by a factor of 2.3, which is well-matched by the predictions from a state-of-the-art semi-analytic model. Below z=0.5 we see hints of differences in behavior between the model and observation.
description: 6 pages, 5 figures; accepted for publication in ApJ
title: Bounded Verification of Message-Passing Concurrency in Go
Creators: name: Dilley, Nicolas
Publisher: name: University of Kent
Year: 2022

description: Go is a programming language that has gained increased popularity due to its good support for system programming and its channel-based message passing concurrency mechanism. These features rendered Go the language of choice of many platform software developers. Go offers a wide range of primitives to coordinate lightweight threads, e.g., channels, waitgroups, and mutexes. Although, these concurrency primitives help mitigate data races, they introduce additional complications due to the complexity of reasoning about concurrency. In this thesis, we first perform an empirical analysis on concurrent Go programs which analyses 125 Go projects from GitHub in order to understand how concurrency is used in publicly available code. Our results include the following findings: (1) concurrency primitives are used frequently and intensively, (2) most projects use synchronous communication channels over asynchronous ones, and (3) most Go projects use simple concurrent thread topologies, which are however currently not fully supported by existing static verification frameworks. To address these limitations, we propose a novel static checker for Go programs that relies on performing bounded model checking of their concurrent behaviours. In contrast to previous works, our approach deals with large codebases, supports programs that have statically unknown parameters and is extensible to additional concurrency primitives. Our work includes an empirical analysis that studies the usage of concurrency in Go projects, a detailed presentation of the extraction algorithm from Go programs to Promela models, an algorithm to automatically check programs with statically unknown parameters, and a large scale evaluation of our approach. The latter shows that our approach outperforms the state-of-the-art.
title: Собственные нужды тепловых, атомных и гидравлических станций и подстанций
Creators: name: ELS IPR BOOKS
Publisher: name: Профобразование
Year: 2021

description: В учебном пособии рассматривается назначение и устройство машин и механизмов системы собственных нужд, обеспечивающих технологический цикл производства и преобразования электрической и тепловой энергии на электрических станциях, а также схемы электроснабжения приводов этих аппаратов. Приведены нормативно-справочные материалы для проектирования схем собственных нужд станций различного типа. Учебное пособие будет полезно при изучении дисциплины «Обслуживание оборудования подстанций» по профессии среднего профессионального образования 13.01.05 «Электромонтер по техническому обслуживанию электростанций и сетей», дисциплины «Устройство и техническое обслуживание электрических подстанций» по специальности 13.02.07 «Электроснабжение (по отраслям)», дисциплины «Техническое обслуживание и ремонт электрооборудования подстанций» по специальности 13.02.09 «Монтаж и эксплуатация линий электропередачи)», дисциплины «Оборудование подстанций» по специальности 13.02.11 «Техническая эксплуатация и обслуживание электрического и электромеханического оборудования (по отраслям)».
The Planetary Nebulae Population in the Nuclear Regions of M31: the SAURON view
Creators: name: Pastorello, Nicola
name: Sarzi, Marc
name: Cappellari, Michele
name: Emsellem, Eric
name: Mamon, Gary A.
name: Bacon, Roland
name: Davies, Roger L.
name: de Zeeuw, P. Tim
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Following a first study of the central regions of M32 that illustrated the power of integral-field spectroscopy (IFS) in detecting and measuring the [O III]λ5007 emission of PNe against a strong stellar background, we turn to the very nuclear PN population of M31, within 80 pc of its centre. We show that PNe can also be found in the presence of emission from diffuse gas and further illustrate the excellent sensitivity of IFS in detecting extragalactic PNe through a comparison with narrowband images obtained with the Hubble Space Telescope. We find the nuclear PNe population of M31 is only marginally consistent with the generally adopted form of the PNe luminosity function (PNLF). In particular, this is due to a lack of PNe with absolute magnitude M5007 brighter than -3, which would only result from a rather unfortunate draw from such a model PNLF. We suggest that the observed lack of bright PNe in the nuclear regions of M31 is due to a horizontal-branch population that is more tilted toward less massive and hotter He-burning stars, so that its progeny consists mostly of UV-bright stars that fail to climb back up the asymptotic giant branch (AGB) and only of few, if any, bright PNe powered by central post-AGB stars. These results are also consistent with recent reports on a dearth of bright post-AGB stars towards the nucleus of M31, and lend further support to the idea that the metallicity of a stellar population has an impact on the way the horizontal branch is populated and to the loose anticorrelation between the strength of the UV-upturn and the specific number of PNe that is observed in early-type galaxies. Finally, our investigation also serves to stress the importance of considering the same spatial scales when comparing the PNe population of galaxies with the properties of their stellar populations.
description: 11 pages, 10 figures, accepted for publication on Monthly Notices of the Royal Astronomical Society
title: Современные электроэнергетические системы и сети
Creators: name: ELS IPR BOOKS
Publisher: name: Профобразование
Year: 2021

description: В учебном пособии приведена характеристика информационной обеспеченности подсистемы современных электроэнергетических систем — распределительных электрических сетей. Показано, как моделировать информационные потоки, характеризующие режимную ситуацию, в условиях неполноты и недостоверности исходной информации, изложена методика эквивалентирования распределительных электрических сетей и описано ее практическое применение. Учебное пособие может быть использовано при изучении дисциплины «Электроэнергетические системы и сети» по специальности среднего профессионального образования 13.02.07 «Электроснабжение (по отраслям)».
On Read's type operators on Hilbert spaces
Creators: name: Grivaux, Sophie
name: Roginskaya, Maria
Publisher: name: arXiv
Year: 2013
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: Using Read's construction of operators without non-trivial invariant subspaces/subsets on $\ell_{1}$ or $c_{0}$, we construct examples of operators on a Hilbert space whose set of hypercyclic vectors is "large" in various senses. We give an example of an operator such that the closure of every orbit is a closed subspace, and then, answering a question of D. Preiss, an example of an operator such that the set of its non-hypercyclic vectors is Gauss null. This operator has the property that it is orbit-unicellular, i.e. the family of the closures of its orbits is totally ordered. We also exhibit an example of an operator on a Hilbert space which is not orbit-reflexive.
description: This is a preprint version of the article "On Read's type operators on Hilbert spaces", Int. Math. Res. Not., 2008 Art. ID rnn083, 42 pp
Spherically Symmetric Solutions in F(R) Gravity and Gravitational Repulsion
Creators: name: Arbuzova, E. V.
name: Dolgov, A. D.
name: Reverberi, L.
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Spherically symmetric solutions in F(R) theories in astronomical systems with rising energy density are studied. The range of parameters is established for which the flat space-time approximation for the background metric is valid. For the solutions in which the curvature scalar oscillates with large amplitude and high frequency, found in our previous papers, it is shown that the analysis of the Jeans instability is strongly modified. It is discovered that for large astronomical objects modified gravity can be repulsive, so such objects shrink forming relatively thin shells instead of quasi uniform bodies. This may explain the formation of cosmic voids.
description: 6 pages. References are added
Process Optimization for Biodiesel Production from Trichiliaemetica Seed 'Luiya' Oil
Creators: name: Shumet, Seid
Publisher: name: Zenodo
Year: 2018

description: The Energy utilization in the whole world has achieved by using the natural resource like coal, natural gas and petroleum diesel for a long period of time. Continuous using up of those nonrenewable energy sources leads to running down the reserve. In addition to this environmental problems are the main issue in the whole world and this leads to search more attractive and environmentally friend energy source. From this biodiesel is the best one to replace petroleum diesel in order to fulfill our energy needs for a sustainable way. The high cost of edible oil seed has increase biodiesel making price. Due to this searching non-edible oil seed has to minimize biodiesel making cost. The major objective for this study work was the optimization process for making biodiesel from the trichiliaemetica oilseed. For transesterification process trichiliaemetica oil, methanol alcohol and calcium oxide catalyst were used. Extraction of oil was undertaken by using manually operated mechanical compress and 75 ml/kg oil was extract
title: Современный русский язык
Creators: name: ELS IPR BOOKS
Publisher: name: Профобразование
Year: 2021

description: В учебно-методическом пособии рассматриваются особенности современной фонетики, лексикологии, словообразования и морфологии, синтаксиса. Приведен краткий теоретический материал, задания к практическим занятиям, тесты и упражнения для закрепления теоретического материала. Учебно-методическое пособие будет полезно при изучении дисциплины «Русский язык» по всем специальностям и профессиям среднего профессионального образования.
title: Социальная работа с инвалидами
Creators: name: ELS IPR BOOKS
Publisher: name: Профобразование
Year: 2021

description: В учебном пособии изложены наиболее важные теоретико-методологические вопросы социальной работы с инвалидами, рассмотрены основные направления и формы социальной защиты, помощи и поддержки инвалидов, особенности технологий социальной работы с данной категорией населения. Учебное пособие может быть использовано при изучении дисциплин «Социальный патронаж лиц пожилого возраста и инвалидов», «Технология социальной работы с пожилыми и инвалидами» по специальности среднего профессионального образования 39.02.01 «Социальная работа», а также дисциплины «Оказание социальных услуг лицам пожилого возраста и инвалидам на дому» по профессии 39.01.01 «Социальный работник».
Lp-Nuclearity, traces, and Grothendieck-Lidskii formula on compact Lie groups
Creators: name: Delgado, Julio
name: Ruzhansky, Michael
Publisher: name: arXiv
Year: 2013
Subjects: subject: Functional Analysis (math.FA)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: Given a compact Lie group $G$, in this paper we give symbolic criteria for operators to be nuclear and r-nuclear on Lp-spaces, with applications to distribution of eigenvalues and trace formulae. Since criteria in terms of kernels are often not effective in view of Carleman's example, in this paper we adopt the symbolic point of view. The criteria here are given in terms of the concept of matrix symbols defined on the non-commutative analogue of the phase space $G\times\hat{G}$, where $\hat{G}$ is the unitary dual of $G$.
description: This is the second half of our paper arXiv:1303.3914 so there is overlap in the preliminaries section
title: Теория дизайна
Creators: name: ELS IPR BOOKS
Publisher: name: Профобразование
Year: 2021

description: В учебном пособии изложены принципы, методы, этапы дизайн-проектирования, качества дизайн-продукта; подробно рассмотрены цели и задачи, определения дизайна, их интерпретация с различных точек зрения; показана модель специалиста-дизайнера, его профессиональные качества и мировоззрение; раскрыт педагогический потенциал дизайна. Учебное пособие предназначено для изучения дисциплин «Дизайн-проектирование (композиция, макетирование, современные концепции в искусстве)», «Основы дизайн-проектирования» по специальности среднего профессионального образования 54.02.01 «Дизайн (по отраслям)».
Nonlocal Symmetries, Telescopic Vector Fields and $λ$-Symmetries of Ordinary Differential Equations
Creators: name: Muriel, Concepción
name: Romero, Juan Luis
Publisher: name: arXiv
Year: 2012
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: This paper studies relationships between the order reductions of ordinary differential equations derived by the existence of $λ$-symmetries, telescopic vector fields and some nonlocal symmetries obtained by embedding the equation in an auxiliary system. The results let us connect such nonlocal symmetries with approaches that had been previously introduced: the exponential vector fields and the $λ$-coverings method. The $λ$-symmetry approach let us characterize the nonlocal symmetries that are useful to reduce the order and provides an alternative method of computation that involves less unknowns. The notion of equivalent $λ$-symmetries is used to decide whether or not reductions associated to two nonlocal symmetries are strictly different.
Postscriptum to "Survey Participation in the Time of Corona"
Creators: name: Becker, Rolf
name: Möser, Sara
name: Moser, Nora
name: Glauser, David
Publisher: name: Survey Research Methods
Year: 2022

description: The analysis of "Survey Participation in the Time of Corona" is replicated by taking a more recent survey into account that was conducted one year later during the same period. The results clearly indicate that the temporary public shutdown in spring 2020 indeed boosted the panellists’ participation at the initial stage of the survey.
description: Survey Research Methods, Vol 16 No 1 (2022)
title: Теория и методология дизайна. Креативные методы дизайна
Creators: name: ELS IPR BOOKS
Publisher: name: Профобразование
Year: 2021

description: Учебное пособие содержит методы разработки новых идей в дизайне, направленные на активизацию творческого мышления дизайнера. Оно описывает многие известные методы пробуждения творческой активности дизайнера. Автором сформулированы собственные креативные методы дизайна, которые для удобства читателя выделены в содержании жирным шрифтом. Учебное пособие будет полезно при изучении дисциплины «Дизайн-проектирование (композиция, макетирование, современные концепции в искусстве)» по специальности среднего профессионального образования 54.02.01 «Дизайн (по отраслям)».
title: Эксплуатация электрических сетей и систем электроснабжения
Creators: name: ELS IPR BOOKS
Publisher: name: Профобразование
Year: 2021

description: В учебном пособии рассмотрены особенности конструктивного исполнения и основные вопросы эксплуатации современных электрических аппаратов и устройств, применяемых на объектах электроэнергетических систем. Освещаются такие темы, как маневренность и мобильность электрических станций, нагрев электрооборудования, эксплуатация электродвигателей, трансформаторов и распределительных устройств, а также линий электропередачи. Учебное пособие будет полезно при изучении дисциплины «Электроэнергетические системы и сети» по специальности среднего профессионального образования 13.02.07 «Электроснабжение (по отраслям)».
Uvod v register SiOHCA: od ideje do izpeljave pilotne izvedbe/Introduction to the SiOHCA Registry: from idea to pilot implementation
Creators: name: Petravić, Luka
name: Burger, Evgenija
name: Keše, Urša
name: Kulovec, Domen
name: Lopes, Miguel
name: Miklič, Rok
name: Pintarič, Tilen
name: Poljanšek, Eva
name: Tomšič, Gašper
name: Brezovnik, Miha
name: Strnad, Matej
Publisher: name: Zenodo
Year: 2023
Subjects: out-of-hospital cardiac arrest
OHCA
registry

description: Izvleček: SiOHCA (ang. Slovenian out-of-hospital cardiac arrest registry) je študentski projekt, ki je začel delovati marca 2022. Gre za ponovni zagon ideje, da Slovenija nujno potrebuje register izvenbolnišničnega srčnega zastoja (OHCA; ang. out-of-hospital cardiac arrest), ki se pojavlja že od leta 2012. Zbiranje in analiziranje podatkov o OHCA ter implementacija ugotovitev, se je v tujini izkazala za ključno pri izboljšanju oskrbe, preživetju ter kakovosti življenja pacientov. Pri pilotni izvedbi smo sodelovali tudi v panevropski študiji EuReCa THREE (ang. European Registry of Cardiac Arrest). Zbiranje podatkov je potekalo v obliki prenovljenih papirnatih obrazcev, ki so jih zdravniki digitalno vnesli v spletni obrazec. To je omogočalo enoten zapis in olajšalo čiščenje podatkov ter kasnejšo analizo. Naše uspešno delo je plod dobrega sodelovanja velike skupine ljudi (študenti, DCZ, ekipe NMP, zdravstvene ekipe v bolnišnicah, ipd.) v kateri vsak prispeva svoje znanje za izpopolnjevanje naše rešitve. Končni cilj projekta je uvedba stalnega registra OHCA v Sloveniji, ki se bo skladal z nacionalnim načrtom digitalizacije zdravstva in omogočal kakovostne vpoglede v stanje na terenu. Abstract: SiOHCA (Slovenian out-of-hospital cardiac arrest registry) is a student-led initiative that began in March 2022. It is a revival of the notion that Slovenia requires a registry of out-of-hospital cardiac arrest (OHCA) urgently, which has existed in some form since 2012. Collecting and analyzing data on OHCA and incorporating the results has proven vital for enhancing the care, survival, and quality of life for patients abroad. On the pilot implementation, we have also collaborated with the pan-European EuReCa (European Registry of Cardiac Arrest )THREE study. Redesigned paper forms were used to capture data, which were then digitally input by physicians into an online form. This enabled a uniform record and made data cleansing and subsequent analysis easier. Our successful work is the result of a large group (students, dispatch center, EMS teams, hospital medical teams, etc.) working together to enhance our solution by contributing their knowledge. The ultimate objective of the initiative is to establish a permanent OHCA registry in Slovenia, which will be in accordance with the national health digitalisation strategy and provide qualitative insights into the local situation.
description: Presented by Eva Poljanšek, Rok Miklič and Matej Strnad on June 15, 2023.
HoloWrist: Holographic Skeletons for Wrist Surgery
Creators: name: Solouki, Ata
name: Booth, Brian
name: Allebosch, Gianni
name: Luong, Hiep
name: Veelaert, Peter
Publisher: name: Zenodo
Year: 2022

description: A surgeon's most crucial task when repairing a broken scaphoid bone is to bring it back together and screw it into place accurately. Wrist anatomy is complex, so the surgeon needs a comprehensive view of wrist bones. X-ray imaging is one of the most convenient ways to do this, but it can't be used repeatedly because it is harmful to humans. In addition, the surgeon receives 2D information from the x-ray imaging, which makes it difficult for him or her to interpret the information in 3D for the patient's wrist. The purpose of the project is to accurately display a hologram of a patient's wrist bones on the patient themselves using augmented reality technology.
Pure spinor equations to lift gauged supergravity
Creators: name: Rosa, Dario
name: Tomasiello, Alessandro
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We rewrite the equations for ten-dimensional supersymmetry in a way formally identical to a necessary and sufficient G-structure system in N=2 gauged supergravity, where all four-dimensional quantities are replaced by combinations of pure spinors and fluxes in the internal space. This provides a way to look for lifts of BPS solutions without having to reduce or even rewrite the ten-dimensional action. In particular this avoids the problem of consistent truncation, and the introduction of unphysical gravitino multiplets.
description: 61 pages
Dynamical analysis of the cosmology of mass-varying massive gravity
Creators: name: Wu, De-Jun
name: Cai, Yifu
name: Piao, Yun-Song
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study cosmological evolutions of the generalized model of nonlinear massive gravity in which the graviton mass is given by a rolling scalar field and is varying along time. By performing dynamical analysis, we derive the critical points of this system and study their stabilities. These critical points can be classified into two categories depending on whether they are identical with the traditional ones obtained in General Relativity. We discuss the cosmological implication of relevant critical points.
description: 16 pages
On extreme field limits in high power laser matter interactions: radiation dominant regimes in high intensity electromagnetic wave interaction with electrons
Creators: name: Bulanov, Sergei V.
name: Esirkepov, Timur Zh.
name: Kando, Masaki
name: Koga, James K.
name: Nakamura, Tatsufumi
name: Bulanov, Stepan S.
name: Zhidkov, Alexei G.
name: Kato, Yoshiaki
name: Korn, Georg
Publisher: name: arXiv
Year: 2013
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We discuss the key important regimes of electromagnetic field interaction with charged particles. Main attention is paid to the nonlinear Thomson/Compton scattering regime with the radiation friction and quantum electrodynamics effects taken into account. This process opens a channel of high efficiency electromagnetic energy conversion into hard electromagnetic radiation in the form of ultra short high power gamma ray flashes.
description: 15 pages, 10 figures, invited talk presented at the SPIE-2013 conference, Prague, Czech Republic, Apr. 15, 2013
Low-dimensional physics of ultracold gases with bound states and the sine-Gordon model
Creators: name: Jolicoeur, Thierry
name: Burovski, Evgeni
name: Orso, Giuliano
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: One-dimensional systems of interacting atoms are an ideal laboratory to study the Kosterlitz-Thouless phase transition. In the renormalization group picture there is essentially a two-parameter phase diagram to explore. We first present how detailed experiments have shown direct evidence for the theoretical treatment of this transition. Then generalization to the case of two-component systems with bound state formation is discussed. Trimer formation in the asymmetric attractive Hubbard model involve in a crucial way this kind of physics.
description: Review talk at Lyon BEC 2012, Conference proceedings, 9 pages, 5 figures
Advancing Research Data Management through Enhanced Vertical Interoperability
Creators: name: Plankytė, Vaida
name: Macneil, Rory
Publisher: name: RSpace
Year: 2024
Subjects: RSpace
Metadata
Vertical Interoperability
Interoperability
Research Data Lifecycle
Research Data Management
Repositories

description: This presentation introduces the concept of Vertical Interoperability, which we define as the seamless passage of data and metadata across research tools involved in every stage of the research lifecycle, from the initial stages of research planning to the archiving and deposit of research outputs.

We introduce the concept using the MaLDReTH model, and contrast it with horizontal interoperability. We then illustrate it through examples of RSpace integrations that demonstrate such interoperability. Finally, we argue why Vertical Interoperability is relevant to repositories, and set the scene for a discussion on what is required to achieve Vertical Interoperability.

This presentation was given as part of the Vertical Interoperability Workshop session at the GREI Annual Meeting 2024.
title: Электрические сети
Creators: name: ELS IPR BOOKS
Publisher: name: Профобразование
Year: 2021

description: В практикуме изложены основные теоретические положения, методика и примеры решения задач по расчету установившихся режимов электрических сетей различных конфигураций и нескольких номинальных напряжений. Издание включает в себя задачи по определению параметров схем замещения основных элементов электрических сетей, расчетных нагрузок узлов, по расчету установившихся режимов разомкнутых разветвленных электрических сетей, простых замкнутых сетей, сетей различной конфигурации, сетей с несколькими номинальными напряжениями, а также по выбору ответвлений РПН трансформаторов и линейных регуляторов. Практикум может быть использован при изучении дисциплины «Электроэнергетические системы и сети» по специальности среднего профессионального образования 13.02.07 «Электроснабжение (по отраслям)».
Effects of Annealing under Tellurium Vapor for Fe$_{1.03}$Te$_{0.8}$Se$_{0.2}$ Single Crystals
Creators: name: Koshika, Yuta
name: Usui, Tomohiro
name: Adachi, Shintaro
name: Watanabe, Takao
name: Sakano, Kouhei
name: Simayi, Shalamujiang
name: Yoshizawa, Masahito
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In this study, the effects of annealing under tellurium vapor have been investigated for Fe$_{1.03}$Te$_{0.8}$Se$_{0.2}$ single crystals. The as-grown crystal is not superconducting. After annealing it at 400 $^\circ$C for 250 h in tellurium (Te) vapor, it shows metallic resistivity temperature dependence below 150 K and a sharp superconducting transition at 13 K. The sample also shows a full magnetic shielding effect at low temperatures. The improvement in superconductivity has been attributed to the removal of excess Fe, which is inevitably incorporated in the as-grown crystals, by the annealing.
description: 9 pages, 6 figures
Airport construction: changing the emphasis of developing competencies of higher education students
Creators: name: Agieieva, Galyna
Publisher: name: Zenodo
Year: 2021
Subjects: airports
urbanization of areas close to airports
architecture of airport
buildings and facilities
National Aviation University
education students
the practice of training specialists for civil aviation

description: The construction and operation of civil aviation airports has a centuries-old history. The individual stages and practices of its operation correspond to the stages of development of aircraft construction and society as a whole. The challenge of time for airport construction is to take into account the processes associated with the increase in the size of airports, their approach to built-up area, the rearrangement of internal infrastructure; integration of transport infrastructure of local, regional and world levels, creation of multimodal transportation systems, etc. According to the forecast of European Organisation for the Safety of Air Navigation (EUROCONTROL), urbanization of areas close to airports, despite the crisis in the aviation industry related to the COVID-19 pandemic, will remain a trend of development and management of territories in pandemic and post-pandemic time.
The Mysterious Sickle Object in the Carina Nebula: A stellar wind induced bow shock grazing a clump?
Creators: name: Ngoumou, Judith
name: Preibisch, Thomas
name: Ratzka, Thorsten
name: Burkert, Andreas
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Optical and near-infrared images of the Carina Nebula show a peculiar arc-shaped feature, which we call the "Sickle", next to the B-type star Trumpler 14 MJ 218. We use multi-wavelength observations to explore and constrain the nature and origin of the nebulosity. Using sub-mm data from APEX/LABOCA as well as Herschel far-infrared maps, we discovered a dense, compact clump with a mass of ~ 40 Msun located close to the apex of the Sickle. We investigate how the B-star MJ 218, the Sickle, and the clump are related. Our numerical simulations show that, in principle, a B-type star located near the edge of a clump can produce a crescent-shaped wind shock front, similar to the observed morphology. However, the observed proper motion of MJ 218 suggest that the star moves with high velocity (~ 100 km/s) through the ambient interstellar gas. We argue that the star is just about to graze along the surface of the clump, and the Sickle is a bow shock induced by the stellar wind, as the object moves supersonically through the density gradient in the envelope of the clump.
description: Accepted for publication in ApJ(8 pages, 6 figures). A high quality preprint is available at: http://www.usm.uni-muenchen.de/people/preibisch/publications.html
Deep LBT/LUCI Spectroscopy of a Lyman-alpha Emitter Candidate at z ~ 7.7
Creators: name: Jiang, Linhua
name: Bian, Fuyan
name: Fan, Xiaohui
name: Krug, Hannah B.
name: McGreer, Ian D.
name: Stark, Daniel P.
name: Clement, Benjamin
name: Egami, Eiichi
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present deep spectroscopic observations of a Lyman-alpha emitter (LAE) candidate at z ~ 7.7 using the infrared spectrograph LUCI on the 2 x 8.4m Large Binocular Telescope (LBT). The candidate is the brightest among the four z ~ 7.7 LAE candidates found in a narrow-band imaging survey by Krug et al. 2012. Our spectroscopic data include a total of 7.5 hours of integration with LBT/LUCI and are deep enough to significantly (3.2-4.9 sigma) detect the Lyman-alpha emission line of this candidate, based on its Lyman-alpha flux 1.2 x 10^{-17} erg s^{-1} cm^{-2} estimated from the narrow-band photometry. However, we do not find any convincing signal at the expected position of its Lyman-alpha emission line, suggesting that this source is not an LAE at z ~ 7.7. The non-detection in this work, together with the previous studies of z ~ 7.7 LAEs, puts a strong constraint on the bright-end Lyman-alpha luminosity function (LF) at z ~ 7.7. We find a rapid evolution of the Lyman-alpha LF from z ~ 6.5 to 7.7: the upper limit of the z ~ 7.7 LF is more than 5 times lower than the z ~ 6.5 LF at the bright end (f > 1.0 x 10^{-17} erg s^{-1} cm^{-2}, or L > 6.9 x 10^{42} erg s^{-1}). This is likely caused by an increasing neutral fraction in the IGM that substantially attenuates Lyman-alpha emission at z ~ 7.7.
description: ApJL accepted: 12 pages, 4 figures
Narrow-bandwidth solar upconversion: design principles, efficiency limits, and case studies
Creators: name: Briggs, Justin A.
name: Atre, Ashwin C.
name: Dionne, Jennifer A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optics (physics.optics)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We employ a detailed balance approach to model a single-junction solar cell with a realistic narrow-band, non-unity-quantum-yield upconverter. As upconverter bandwidths are increased from 0 to 0.5 eV, maximum cell efficiencies increase from the Shockley-Queisser limit of 30.58% to over 43%. Such efficiency enhancements are calculated for upconverters with near-infrared spectral absorption bands, readily accessible with existing upconverters. While our model shows that current bimolecular and lanthanide-based upconverting materials will improve cell efficiencies by <1%, cell efficiencies can increase by several absolute percent with increased upconverter quantum yield - even without an increased absorption bandwidth. By examining the efficiency limits of a highly realistic solar cell-upconverter system, our model provides a platform for optimizing future solar upconverter designs.
description: 6 pages, 4 figures
GENOMIC ANALYSIS OF E. COLI STRAINS IN URINARY TRACT INFECTIONS
Creators: name: Karim, T. Jabbar
name: Layla, M. Farouk
Publisher: name: AYDEN JOURNAL
Year: 2024
Subjects: E. coli, WGS, Urinary tract infection and MLST

description: Uropathogenic E. coli is the primary causal agent responsible for urinary tract infections, particularly in women. We obtained a total of 30 samples from the Atatürk University Research Hospital in Erzurum, Türkiye, from January 2021 to April 2021. We established the presence of E. coli using routine identification and biochemical assays. We discovered certain isolates through whole genome sequencing. This investigation revealed that a total of 84 genes, coding for virulence factors (VF), were present in five isolates. Our isolates include the following virulence factors: 12 genes encoding adhesins, 9 genes encoding iron acquisition systems, 8 genes involved in protection and invasion, 4 genes encoding toxins, and several additional miscellaneous proteins. The isolates contained in B1 and B2 belong to phylogenetic group classes one and four, respectively. Isolates two, three, and five are all part of the same phylogenetic group. Sequence type (ST) 69 contains isolate one, while ST 162 now contains isolate two. We isolated three individuals in ST 405, four in ST 131, and five in ST 69
Material dependence of Casimir interaction between a sphere and a plate: First analytic correction beyond proximity force approximation
Creators: name: Teo, L. P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We derive analytically the asymptotic behavior of the Casimir interaction between a sphere and a plate when the distance between them, $d$, is much smaller than the radius of the sphere, $R$. The leading order and next-to-leading order terms are derived from the exact formula for the Casimir interaction energy. They are found to depend nontrivially on the dielectric functions of the objects. As expected, the leading order term coincides with that derived using the proximity force approximation. The result on the next-to-leading order term complements that found by Bimonte, Emig and Kardar [Appl. Phys. Lett. \textbf{100}, 074110 (2012)] using derivative expansion. Numerical results are presented when the dielectric functions are given by the plasma model or the Drude model, with the plasma frequency (for plasma and Drude models) and relaxation frequency (for Drude model) given respectively by 9eV and 0.035eV, the conventional values used for gold metal. It is found that if plasma model is used instead of Drude model, the error in the sum of the first two leading terms is at most 2%, while the error in $θ_1$, the ratio of the next-to-leading order term divided by $d/R$ to the leading order term, can go up to 4.5%.
description: 21 pages, 10 figures
title: Электроэнергетические системы и сети
Creators: name: ELS IPR BOOKS
Publisher: name: Профобразование
Year: 2021

description: В учебном пособии приведены основные определения и понятия электроэнергетических систем, принципы построения, конструктивного исполнения и функционирования электрических сетей, методы расчета установившихся режимов, основы регулирования частоты и напряжения. Дается понятие графиков электрических нагрузок и раскрывается их роль в функционировании электроэнергетической системы. Особое внимание в учебном пособии уделено расчету установившихся режимов сетей, характеризующих основное состояние электрических сетей. Раскрыты способы и принципы регулирования напряжения. Показана роль балансов активной и реактивной мощности в электроэнергетических системах, раскрыт физический смысл и приведены основы регулирования частоты в электроэнергетической системе. Учебное пособие предназначено для изучения дисциплины «Электроэнергетические системы и сети» по специальности среднего профессионального образования 13.02.07 «Электроснабжение (по отраслям)».
Letter Change Bias and Local Uniqueness in Optimal Sequence Alignments
Creators: name: Hauser, Raphael
name: Matzinger, Heinrich
Publisher: name: arXiv
Year: 2013
Subjects: subject: Probability (math.PR)
subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 60F10, 92D20

description: Considering two optimally aligned random sequences, we investigate the effect on the alignment score caused by changing a random letter in one of the two sequences. Using this idea in conjunction with large deviations theory, we show that in alignments with a low proportion of gaps the optimal alignment is locally unique in most places with high probability. This has implications in the design of recently pioneered alignment methods that use the local uniqueness as a homology indicator.
Extinction and PAH intensity variations across the HII region IRAS 12063-6259
Creators: name: Stock, D. J.
name: Peeters, E.
name: Tielens, A. G. G. M.
name: Otaguro, J. N.
name: Bik, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The spatial variations in PAH band intensities are normally attributed to the physical conditions of the emitting PAHs, however in recent years it has been suggested that such variations are caused mainly by extinction. To resolve this question, we have obtained near-infrared (NIR), mid-infrared (MIR) and radio observations of the compact H ii region IRAS 12063-6259. We use these data to construct multiple independent extinction maps and also to measure the main PAH features (6.2, 7.7, 8.6 and 11.2 μm) in the MIR. Three extinction maps are derived: the first using the NIR hydrogen lines and case B recombination theory; the second combining the NIR data with radio data; and the third making use of the Spitzer/IRS MIR observations to measure the 9.8 μm silicate absorption feature using the Spoon method and PAHFIT (as the depth of this feature can be related to overall extinction). The silicate absorption over the bright, southern component of IRAS 12063-6259 is almost absent while the other methods find significant extinction. While such breakdowns of the relationship between the NIR extinction and the 9.8 μm absorption have been observed in molecular clouds, they have never been observed for HII regions. We then compare the PAH intensity variations in the Spitzer/IRS data after dereddening to those found in the original data. It was found that in most cases, the PAH band intensity variations persist even after dereddening, implying that extinction is not the main cause of the PAH band intensity variations.
description: 16 Pages, 17 Figures, 2 Tables. ApJ Accepted
FACTORS AND CONDITIONS FOR THE DEVELOPMENT OF PROFESSIONAL PEDAGOGICAL SKILLS OF A MODERN TEACHER
Creators: name: Ochilova, Nigora
Publisher: name: Zenodo
Year: 2023

description: Modernization of higher education institutions and the educational process in them, increasing the quality monitoring of the system of training pedagogic specialists, equipping modern teachers with modern professional knowledge, qualifications and skills, in relation to the professional and pedagogical skills of modern teachers formation of acmeological motivation is one of the important tasks in the process of formation of professional training of pedagogues.
Collective behavior and evolutionary games - An introduction
Creators: name: Perc, Matjaz
name: Grigolini, Paolo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: This is an introduction to the special issue titled "Collective behavior and evolutionary games" that is in the making at Chaos, Solitons & Fractals. The term collective behavior covers many different phenomena in nature and society. From bird flocks and fish swarms to social movements and herding effects, it is the lack of a central planner that makes the spontaneous emergence of sometimes beautifully ordered and seemingly meticulously designed behavior all the more sensational and intriguing. The goal of the special issue is to attract submissions that identify unifying principles that describe the essential aspects of collective behavior, and which thus allow for a better interpretation and foster the understanding of the complexity arising in such systems. As the title of the special issue suggests, the later may come from the realm of evolutionary games, but this is certainly not a necessity, neither for this special issue, and certainly not in general. Interdisciplinary work on all aspects of collective behavior, regardless of background and motivation, and including synchronization and human cognition, is very welcome.
description: 6 two-column pages, 1 figure; accepted for publication in Chaos, Solitons & Fractals [the special issue is available at http://www.sciencedirect.com/science/journal/09600779/56]
Three-dimensional integral equation approach to light scattering, extinction cross sections, local density of states and quasinormal modes
Creators: name: de Lasson, Jakob Rosenkrantz
name: Mørk, Jesper
name: Kristensen, Philip Trøst
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present a numerical formalism for solving the Lippmann-Schwinger equation for the electric field in three dimensions. The formalism may be applied to scatterers of different shapes and embedded in different background media, and we develop it in detail for the specific case of spherical scatterers in a homogeneous background medium. In addition, we show how several physically important quantities may readily be calculated with the formalism. These quantities include the extinction cross section, the total Green's tensor, the projected local density of states and the Purcell factor as well as the quasinormal modes of leaky resonators with the associated resonance frequencies and quality factors. We demonstrate the calculations for the well-known plasmonic dimer consisting of two silver nanoparticles and thus illustrate the versatility of the formalism for use in modeling of advanced nanophotonic devices.
description: 14 pages, 10 figures. Accepted for JOSA B
A Study on Anisotropy in the Arrival Directions of Ultra-High-Energy Cosmic Rays Observed by Pierre Auger Observatory
Creators: name: Kim, Hang Bae
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We study the anisotropy in the arrival directions of PAO UHECRs, using the point source correlational angular distance distribution. The result shows that the anisotropy is characterized by one prominent excess region and one void region. The excess region is located near the Centaurus A direction, supporting that the Centaurus A is a promising UHECR source. The void region near the south pole direction may be used to limit the diffuse isotropic background contribution.
description: 8 pages
Parametric study of non-relativistic electrostatic shocks and the structure of their transition layer
Creators: name: Dieckmann, ME
name: Ahmed, H
name: Sarri, G
name: Doria, D
name: Kourakis, I
name: Romagnani, L
name: Pohl, M
name: Borghesi, M
Publisher: name: arXiv
Year: 2013
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Nonrelativistic electrostatic unmagnetized shocks are frequently observed in laboratory plasmas and they are likely to exist in astrophysical plasmas. Their maximum speed, expressed in units of the ion acoustic speed far upstream of the shock, depends only on the electron-to-ion temperature ratio if binary collisions are absent. The formation and evolution of such shocks is examined here for a wide range of shock speeds with particle-in-cell (PIC) simulations. The initial temperatures of the electrons and the 400 times heavier ions are equal. Shocks form on electron time scales at Mach numbers between 1.7 and 2.2. Shocks with Mach numbers up to 2.5 form after tens of inverse ion plasma frequencies. The density of the shock-reflected ion beam increases and the number of ions crossing the shock thus decreases with an increasing Mach number, causing a slower expansion of the downstream region in its rest frame. The interval occupied by this ion beam is on a positive potential relative to the far upstream. This potential pre-heats the electrons ahead of the shock even in the absence of beam instabilities and decouples the electron temperature in the foreshock ahead of the shock from the one in the far upstream plasma. The effective Mach number of the shock is reduced by this electron heating. This effect can potentially stabilize nonrelativistic electrostatic shocks moving as fast as supernova remnant (SNR) shocks.
description: 11 pages, 12 figures, accepted for publication in Physics of Plasmas