cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Role of uniform horizontal magnetic field on convective flow
Creators: name: Pal, Pinaki
name: Kumar, Krishna
Publisher: name: arXiv
Year: 2013
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences
subject: 76W05

description: The effect of uniform magnetic field applied along a fixed horizontal direction in Rayleigh-Bénard convection in low-Prandtl-number fluids has been studied using a low dimensional model. The model shows the onset of convection (primary instability) in the form of two dimensional stationary rolls in the absence of magnetic field, when the Rayleigh number $R$ is raised above a critical value $R_c$. The flow becomes three dimensional at slightly higher values of Rayleigh number via wavy instability. These wavy rolls become chaotic for slightly higher values of $R$ in low-Prandtl-number ($P_r$) fluids. A uniform magnetic field along horizontal plane strongly affects all kinds of convective flows observed at higher values of $R$ in its absence. As the magnetic field is raised above certain value, it orients the convective rolls in its own direction. Although the horizontal magnetic field does not change the threshold for the primary instability, it affects the threshold for secondary (wavy) instability. It inhibits the onset of wavy instability. The critical Rayleigh number $R_o (Q,P_r)$ at the onset of wavy instability, which depends on Chandrasekhar's number $Q$ and $P_r$, increases monotonically with $Q$ for a fixed value of $P_r$. The dimensionless number $R_o (Q, P_r)/(R_c Q P_r)$ scales with $Q$ as $Q^{-1}$. A stronger magnetic field suppresses chaos and makes the flow two dimensional with roll pattern aligned along its direction.
description: 6 pages, 8 figures
The Recurrent Nova T Pyx: Distance and Remnant Geometry from Light Echoes
Creators: name: Sokoloski, J. L.
name: Crotts, Arlin P. S.
name: Uthas, Helena
name: Lawrence, Stephen
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The recurrent nova T Pyxidis (T Pyx) is well known for its small binary separation, its unusually high luminosity in quiescence, and the spectacular Hubble Space Telescope (HST) images of its surrounding remnant. In 2011 April, T Pyx erupted for the first time since 1966. Here we describe HST observations in late 2011 of a transient reflection nebula around the erupting white dwarf (WD). Our observations of this light echo in the pre-existing remnant show that it is dominated by a clumpy ring with a radius of about 5", and an inclination of 30 to 40 degrees, with the eastern edge tilted toward the observer. The delay times between the direct optical light from the central source, and the scattering of this light from dust in several clumps with the same foreground distance as the central source, give a distance to T Pyx of 4.8 +- 0.5 kpc. Given past evidence from two-dimensional optical spectra that the remnant contains a shell-like component, it must actually consist of a ring embedded within a quasi-spherical shell. The large distance of 4.8 kpc supports the contention that T Pyx has an extraordinarily high rate of mass transfer in quiescence, and thus that nova explosions themselves can enhance mass loss from a donor star, and reduce the time between eruptions in a close binary.
description: To be published in ApJL; 20 pages, 3 figures
title: Английский язык для будущих социальных работников
Creators: name: ELS IPR BOOKS
Publisher: name: Профобразование
Year: 2021

description: Учебное пособие способствует развитию навыков и умений чтения специальной литературы на иностранном языке и разговорной речи на иностранном языке. Тексты дают представление о социальных проблемах, существующих в странах изучаемого языка и родной страны, а также подчеркивают роль социальных работников в решении этих проблем. Предтекстовые задания помогают расширить словарный запас, отработать лексику, присутствующую в тексте, устранить смысловые и языковые трудности. Послетекстовые задания помогают закрепить лексику, проверить понимание прочитанного, выявить главное, определить существенные детали текста, а также быть способным самостоятельно высказаться по изучаемой теме и решить поставленную проблемную задачу. Учебное пособие предназначено для изучения дисциплины «Иностранный язык (английский)» по профессии среднего профессионального образования 39.01.01 «Социальный работник» и специальности 39.02.01 «Социальная работа».
Test Methods for Corrosion-Fatigue of Offshore Structures
Creators: name: Saeed, Hasan
name: Chaudhuri, Somsubhro
name: De Waele, Wim
Publisher: name: Zenodo
Year: 2022

description: The increasing demand for renewable energy, necessitates offshore wind turbine structures to be installed in deeper waters and more remote areas.
 They are subjected to challenging conditions, i.e., the combination of cyclic loads from wind, waves, and currents, and the corrosive nature of the seawater environment. The literature lacks experimental data on the corrosion-fatigue of structural steels, especially concerning the short crack propagation regime. This study involves developing test methods and equipment for corrosion-fatigue testing of welded structural steel and quantifying the propagation rate of short cracks (starting from corrosion pits). The developed models (calibrated by the experiments) allow accurate prediction of the remaining lifetime of steel structures exposed to corrosion damage.
Zur Seneca-Lektüre im Lateinunterricht - ein Überblick
Creators: name: Fritsch, Andreas
Publisher: name: Pegasus-Onlinezeitschrift
Year: 2017

description: Der Artikel „Zur Seneca-Lektüre im Lateinunterricht – ein Überblick“ von Andreas Fritsch behandelt die Verwendung von Seneca als Schulautor aus früherer sowie aktueller fachdidaktischer Sicht. Er liefert neben einem Abriss über Leben und Werk des Philosophen auch die Gegenüberstellung zweier Schulausgaben der Epistulae morales, einer anspruchsvollen, sehr systematisch aufgebauten Autoren- und Werklektüre von Gregor Maurach aus dem Jahre 1987 sowie einer an den modernen fachdidaktischen Forderungen orientierten und schülerfreundlichen Ausgabe von Christian Zitzl aus dem Jahre 2009.

Anhang
description: Pegasus-Onlinezeitschrift, Bd. 12, Nr. 2: Pegasus-Onlinezeitschrift
Surface acoustic waves in rotating orthorhombic crystals
Creators: name: Destrade, Michel
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The propagation of surface (Rayleigh) waves over a rotating orthorhombic crystal is studied. The crystal possesses three crystallographic axes, normal to the symmetry planes: the half-space is cut along a plane normal to one of these axes, the wave travels in the direction of another, and the rotation occurs at a uniform rate about any of the three axes. The secular equation for the surface wave speed is found explicitly; in contrast to the non-rotating case, it is dispersive (frequency-dependent). Both Coriolis and centrifugal accelerations appear in the equations of motion: none can be neglected in favor of the other, even at small rotation rates.
title: Банковское право
Creators: name: ELS IPR BOOKS
Publisher: name: Профобразование
Year: 2021

description: В учебно-методическом пособии представлен теоретический материал по банковскому праву, содержатся задания и методические рекомендации для практических и контрольных работ. В издании рассмотрены субъекты банковского права, особенности банковской системы Российской Федерации, особенности банковских вкладов и счетов, кредитные и валютные операции. Рассмотрены также особенности применения факторинга, операции с ценными бумагами и услуги по доверительному управлению имуществом клиентов. Издание составлено на основе опубликованной судебной практики, а также изданных ранее книг: Л.Г. Ефимова, Д.Г. Алексеева «Банковское право», С.И. Алескеров, А.И. Землин, Н.П. Ольховская «Банковское право». Учебно-методическое пособие может быть использовано для изучения дисциплины «Основы правового регулирования деятельности банков» по профессии среднего профессионального образования 38.01.03 «Контролер банка».
title: История русского костюма
Creators: name: ELS IPR BOOKS
Publisher: name: Профобразование
Year: 2021

description: В учебном пособии рассмотрены основные виды русского костюма разных эпох и сословий (крестьяне, знать, воины), а также виды тканей и символика вышивки в русском костюме. Издание содержит рисунки, фотоиллюстрации музейных экспонатов, картины художников, иконы и схемы кроя. В учебном пособии также представлены ссылки на фильмы, в которых можно увидеть русские костюмы в реальном ношении. Учебное пособие будет полезно при изучении дисциплины «История костюма» по профессиям среднего профессионального образования 29.01.04 «Художник по костюму», 29.01.05 «Закройщик», 29.01.07 «Портной» и специальности29.02.01 «Конструирование, моделирование и технология изделий из кожи».
Chancen und Grenzen übergreifender Grammatikarbeit Englisch / Latein
Creators: name: Dominick, Laura
Publisher: name: Pegasus-Onlinezeitschrift
Year: 2017

description: Vor dem Hintergrund der angestrebten Mehrsprachigkeit thematisiert Laura Dominick in ihrem Artikel „Chancen und Grenzen übergreifender Grammatikarbeit Englisch / Latein“, welches Potential eine engere und vor allem übergreifende Zusammenarbeit der Fächer Latein und Englisch bezüglich des Grammatikunterrichts haben kann. Sie illustriert mithilfe verschiedener Aufgaben aus Lateinlehrwerken anhand des AcI, der Funktion der Vergangenheitstempora und lateinsicher Affixe in Bezug auf das Englische, dass sprachübergreifendes Lernen für Schülerinnen und Schüler aufgrund aufgezeigte Parallelen durchaus hilfreich ist.
description: Pegasus-Onlinezeitschrift, Bd. 15, Nr. 1: Pegasus-Onlinezeitschrift
Constraining the cometary flux through the asteroid belt during the late heavy bombardment
Creators: name: Brož, M.
name: Morbidelli, A.
name: Bottke, W. F.
name: Rozehnal, J.
name: Vokrouhlický, D.
name: Nesvorný, D.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: In the Nice model, the late heavy bombardment (LHB) is related to an orbital instability of giant planets which causes a fast dynamical dispersion of a transneptunian cometary disk. We study effects produced by these hypothetical cometary projectiles on main-belt asteroids. In particular, we want to check whether the observed collisional families provide a lower or an upper limit for the cometary flux during the LHB. We present an updated list of observed asteroid families as identified in the space of synthetic proper elements by the hierarchical clustering method, colour data, albedo data and dynamical considerations and we estimate their physical parameters. We selected 12 families which may be related to the LHB according to their dynamical ages. We then used collisional models and N-body orbital simulations to gain insight into the long-term dynamical evolution of synthetic LHB families over 4 Gyr. We account for the mutual collisions, the physical disruptions of comets, the Yarkovsky/YORP drift, chaotic diffusion, or possible perturbations by the giant-planet migration. Assuming a "standard" size-frequency distribution of primordial comets, we predict the number of families with parent-body sizes D_PB >= 200 km which seems consistent with observations. However, more than 100 asteroid families with D_PB >= 100 km should be created at the same time which are not observed. This discrepancy can be nevertheless explained by the following processes: i) asteroid families are efficiently destroyed by comminution (via collisional cascade), ii) disruptions of comets below some critical perihelion distance (q
description: accepted in Astronomy and Astrophysics
title: Культура юридической речи
Creators: name: ELS IPR BOOKS
Publisher: name: Профобразование
Year: 2021

description: Учебно-методическое пособие включает минимальный теоретический материал и значительный языковой практикум. В нем содержится теоретическая информация об основных требованиях к текстам юридического подстиля официально-делового стиля и о нормах русского языка; ключевые вопросы для обсуждения; практические задания в виде упражнений, помогающих отработать механизм применения определенных языковых правил; вопросы к зачету; примерный вариант итоговой контрольной работы; библиографический список источников. В Приложении содержатся тексты для редактирования — приговоры и постановления. Издание будет полезно при изучении дисциплины «Русский язык и культура речи» по укрупненной группе специальностей среднего профессионального образования 40.00.00 «Юриспруденция».
Tierknochenfunde und Wirtschaftsarchäologie. Eine kritische Studie der Methoden der Osteo-Archäologie
Creators: name: Uerpmann, Hans-Peter
Publisher: name: DGUF e.V.
Year: 2017

description: [nicht vorhanden / not available]
description: Archäologische Informationen, Bd. 1 (1972): Archäologische Informationen
title: Культурология
Creators: name: ELS IPR BOOKS
Publisher: name: Профобразование
Year: 2021

description: В учебном пособии рассмотрены предмет и метод культурологии, понятие культуры, ее структура и функции, изложена социология и динамика культуры, представлена типология культур. Описаны восточная культура и её разновидности, европейская культурная традиция, русская культура, современная культура, ее особенности и проблемы. Учебное пособие предназначено для студентов всех специальностей и профессий, учебными планами которых предусмотрено изучение дисциплины «Культурология».
title: Лечебная физическая культура
Creators: name: ELS IPR BOOKS
Publisher: name: Профобразование
Year: 2021

description: В учебном пособии рассмотрены теоретико-методические основы лечебной физкультуры, представлено содержание занятий, средства и методы ЛФК. Большое внимание уделяется описанию специальных упражнений, которые применяются при различных заболеваниях. В конце каждой главы даны вопросы для самоконтроля знаний. Учебное пособие предназначено для изучения дисциплин «Лечебная физическая культура», «Лечебная физическая культура и массаж», «Основы врачебного контроля, лечебной физической культуры (ЛФК) и массажа» по специальностям среднего профессионального образования 49.02.01 «Физическая культура», 49.02.02 «Адаптивная физическая культура».
title: Начальная обработка деталей швейных изделий. В 2-х частях. Ч. 1
Creators: name: ELS IPR BOOKS
Publisher: name: Профобразование
Year: 2021

description: Учебное пособие содержит основные сведения о строении и применении ниточных соединений, видах и режимах влажно-тепловой обработки (ВТО), а также практические рекомендации по освоению приемов выполнения ниточных соединений деталей одежды и технические требования к выполнению операций ВТО. Учебное пособие может быть использовано при изучении дисциплин «Основы обработки различных видов швейных изделий», «Технологическая обработка швейных изделий» по профессиям среднего профессионального образования 29.01.04 «Художник по костюму», 29.01.08 «Оператор швейного оборудования» и специальности 29.02.04 «Конструирование, моделирование и технология швейных изделий».
Practical approach to the sign problem at finite theta-vacuum angle
Creators: name: Sasaki, Takahiro
name: Kouno, Hiroaki
name: Yahiro, Masanobu
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate a way of circumventing the sign problem in lattice QCD simulations with a theta-vacuum term, using the PNJL model. We consider the reweighting method for the QCD Lagrangian after the U_A(1) transformation. In the Lagrangian, the P-odd mass term as a cause of the sign problem is minimized. In order to find out a good reference system in the reweighting method, we estimate the average reweighting factor by using the two-flavor PNJL model and eventually find a good reference system.
description: 6 pages, 7 figures. Accepted for publication in Phys. Rev. D. Substantial text overlap with arXiv:1208.0375
Antwort auf R. Protsch: "Wie alt ist der Homo sapiens?", Arch. Inf. 4, 1978, 8-32
Creators: name: Solecki, Ralph
Publisher: name: DGUF e.V.
Year: 2017

description: [nicht vorhanden / not available]
description: Archäologische Informationen, Bd. 5 (1983): Archäologische Informationen
Structure of the eigenfrequencies parameter space for the system of dissipatively coupled oscillators
Creators: name: Emelianova, Yulia P.
name: Kuznetsov, Alexander P.
name: Turukina, Ludmila V.
name: Sataev, Igor R.
name: Chernyshov, Nikolai Yu.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Structure of the eigenfrequencies parameter space for three and four dissipatively coupled van der Pol oscillators is discussed. Situations of different codimension relating to the configuration of the full synchronization area as well as a picture of different modes in its neighborhood are revealed. The organization of quasi-periodic areas of different dimensions is considered. The results for the phase model and for the original system are compared.
description: 16 pages, 9 figures
Theoretical analysis of Sinc-collocation methods and Sinc-Nyström methods for initial value problems
Creators: name: Okayama, Tomoaki
Publisher: name: arXiv
Year: 2013
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65L05, 65R20, 65D30

description: A Sinc-collocation method has been proposed by Stenger, and he also gave theoretical analysis of the method in the case of a `scalar' equation. This paper extends the theoretical results to the case of a `system' of equations. Furthermore, this paper proposes more efficient method by replacing the variable transformation employed in Stenger's method. The efficiency is confirmed by both of theoretical analysis and numerical experiments. In addition to the existing and newly-proposed Sinc-collocation methods, this paper also gives similar theoretical results for Sinc-Nyström methods proposed by Nurmuhammad et al. From a viewpoint of the computational cost, it turns out that the newly-proposed Sinc-collocation method is the most efficient among those methods.
description: Keywords: Sinc approximation, Sinc indefinite integration, differential equation, Volterra integral equation, tanh transformation, double-exponential transformation
Besiedlung Ostfrieslands in ur- und frühgeschichtlicher Zeit. Klassifikation des Feuersteinmaterials von Oberflächenfundplätzen
Creators: name: Schwarz, Wolfgang
Publisher: name: DGUF e.V.
Year: 2017

description: [nicht vorhanden / not available]
description: Archäologische Informationen, Bd. 12, Nr. 2 (1989): Archäologische Informationen
The resolution of field identification fixed points in diagonal coset theories
Creators: name: Fuchs, Jürgen
name: Schellekens, Bert
name: Schweigert, Christoph
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 1996
Subjects: subject: 530
subject: field theory: conformal
subject: dimension: 2
subject: coset space
subject: algebra: Kac-Moody
subject: algebra: representation
subject: S-matrix

description: The fixed point resolution problem is solved for diagonal coset theories. The primary fields into which the fixed points are resolved are described by submodules of the branching spaces, obtained as eigenspaces of the automorphisms that implement field identification. To compute the characters and the modular S -matrix we use ‘orbit Lie algebras’ and ‘twining characters’, which were introduced in a previous paper. The characters of the primary fields are expressed in terms of branching functions of twining characters. This allows us to express the modular S -matrix through the S -matrices of the orbit Lie algebras associated to the identification group. Our results can be extended to the larger class of ‘generalized diagonal cosets’.
Observation of Polarized Positrons from an Undulator-Based Source
Creators: name: Alexander, G.
name: Barley, J.
name: Batygin, Y.
name: Berridge, S.
name: Bharadwaj, V.
name: Bower, G.
name: Bugg, W.
name: Decker, F.-J.
name: Dollan, R.
name: Efremenko, Y.
name: Gharibyan, V.
name: Hast, C.
name: Iverson, R.
name: Kolanoski, H.
name: Kovermann, J.
name: Laihem, K.
name: Lohse, T.
name: McDonald, K. T.
name: Mikhailichenko, A. A.
name: Moortgat-Pick, G. A.
name: Pahl, P.
name: Pitthan, R.
name: Pöschl, R.
name: Reinherz-Aronis, E.
name: Riemann, S.
name: Schälicke, A.
name: Schüler, K. P.
name: Schweizer, T.
name: Scott, D.
name: Sheppard, J. C.
name: Stahl, A.
name: Szalata, Z. M.
name: Walz, D.
name: Weidemann, A. W.
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2008
Subjects: subject: 550
subject: 13.88.+e
subject: 41.75.Fr
subject: 29.27.Hj
subject: 07.77.Ka

description: An experiment (E166) at the Stanford Linear Accelerator Center has demonstrated a scheme in which a multi-GeV electron beam passed through a helical undulator to generate multi-MeV, circularly polarized photons which were then converted in a thin target to produce positrons (and electrons) with longitudinal polarization above 80% at 6 MeV. The results are in agreement with Geant4 simulations that include the dominant polarization-dependent interactions of electrons, positrons, and photons in matter.
title: Начальная обработка деталей швейных изделий. В 2-х частях. Ч. 2
Creators: name: ELS IPR BOOKS
Publisher: name: Профобразование
Year: 2021

description: Учебное пособие содержит основные сведения о начальной обработке швейных изделий плательно-блузочного и сорочечного ассортимента, включающие строение и применение швейных машинных стежков и строчек, практические рекомендации по освоению приемов работы на швейных машинах и технические условия выполнения машинных работ. Учебное пособие может быть использовано при изучении дисциплин «Основы обработки различных видов швейных изделий», «Технологическая обработка швейных изделий» по профессиям среднего профессионального образования 29.01.04 «Художник по костюму», 29.01.08 «Оператор швейного оборудования» и специальности 29.02.04 «Конструирование, моделирование и технология швейных изделий».
The Correlation between Dispersion Measure and X-ray Column Density from Radio Pulsars
Creators: name: He, C.
name: Ng, C. -Y.
name: Kaspi, V. M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Pulsars are remarkable objects that emit across the entire electromagnetic spectrum, providing a powerful probe of the interstellar medium. In this study, we investigate the relation between dispersion measure (DM) and X-ray absorption column density NH using 68 radio pulsars detected at X-ray energies with the Chandra X-ray Observatory or XMM-Newton. We find a best-fit empirical linear relation of NH (10^20 cm^-2)= 0.30+0.13-0.09 DM (pc cm^-3), which corresponds to an average ionization of 10+4-3%, confirming the ratio of one free electron per ten neutral hydrogen atoms commonly assumed in the literature. We also compare different NH estimates and note that some NH values obtained from X-ray observations are higher than the total Galactic HI column density along the same line of sight, while the optical extinction generally gives the best NH predictions.
description: 4 figures, accepted for publication in ApJ
title: Органическая химия
Creators: name: ELS IPR BOOKS
Publisher: name: Профобразование
Year: 2021

description: Практикум включает 18 лабораторных работ по органической химии, выполнение которых позволит студентам закрепить теоретические знания и приобрести практические навыки в работе с реактивами, оборудованием и приборами. Каждая лабораторная работа содержит краткую теоретическую часть, перечень необходимых реактивов, посуды и оборудования и описание экспериментальной части. Практикум предназначен для студентов всех специальностей и профессий среднего профессионального образования, учебными планами которых предусмотрено изучение дисциплины «Органическая химия».
SUG'URTA FAOLIYATINI RAQAMLASHTIRISHNING ASOSIY YO'NALISHLARI.
Creators: name: Muxammadiyeva, Muxayyo
Publisher: name: Zenodo
Year: 2023

description: Ushbu maqolada sug'urta faoliyatini raqamlashtirishning ta'siri va risklari tahlil qilinadi.
Relaxor behavior and morphotropic phase boundary in a simple model
Creators: name: Tomita, Yusuke
name: Kato, Takeo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A simple model to reproduce strong enhancement of dielectric response near the morphotropic phase boundary (MPB) is proposed. This model consists of long-range dipole-dipole interaction and compositional chemical disorder incorporated by the variation in lengths of dipole moments. By applying Monte Carlo simulation, we show that there appears a ferroelectric boundary phase between two types of antiferroelectric phases at an optimal strength of randomness. In the boundary phase, ferroelectric domain becomes remarkably large and flexible to external electric fields, leading to huge dielectric response. This observation indicates that huge dielectric response near the MPB originates from {\it local} polarization rotation under suppressed anisotropy by phase competition.
description: 5 pages, 4 figures
A finiteness theorem for Lagrangian fibrations
Creators: name: Sawon, Justin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14D06, 14K10, 53C26

description: We consider (holomorphic) Lagrangian fibrations X->P^n that satisfy some natural hypotheses. We prove that there are only finitely many such Lagrangian fibrations up to deformation.
description: 20 pages
Design of 224/448 Gbps Nrz/Pam4 Wireline Transmitter Using 28Nm CMOS- and 250Nm InP-Technology
Creators: name: Gorzka
Publisher: name: Zenodo
Year: 2022

description: The global data traffic, whether wired or wireless, will not stop growing. The worldwide fixed internet traffic is increasing by 2-fold every 3-4 years. Therefore, faster optical communication systems are demanded for the transmission of larger volumes of data.
 A typical digital coherent optical communications system contains digital-to-analog converter (DAC) to convert digital signals from digital signal processors (DSPs) to analog signals. These DACs are generally fabricated in the complementary metal oxide semiconductor (CMOS) process for integration with DSPs fabricated in the same process. Nowadays, CMOS DACs are facing speed bottlenecks due to their limited analog bandwidth of around 56 GHz, when used for high speed transmitter architectures targeting beyond 100 Gbps.
 This PhD is exploring for solutions to overcome such bandwidth limitations to drive off-chip optical modulators with higher speeds. One of the solutions, which this PhD research is investigating, is to combine CMOS technology with a faster III-V technology namely Indium-Phosphide (InP). That is, all complex architectures like PRBS15, delay-blocks, duty-cycle correction (DCC) circuits and predistortion techniques like feed-forward equalization (FFE) and PAM4-level adjustments were implemented in 28nm planar CMOS to leverage from its high yields. Then, to extend the bandwidth and to target higher speeds, a 4:1-Analog Multiplexer (AMUX) was implemented in 250nm InP-DHBT technology.
 Next, it is planned to combine this 4:1-AMUX with the aforementioned CMOS DACs such that speeds beyond 224 Gbaud symbolrates are achieved with 400mVpp output voltage swing. A further feature this 224/448 Gbps NRZ/PAM4 wireline CMOS-InP-transmitter module offers is the capability to equalize not only the channel of the CMOS DACs' output, but also the channel at the output of the first InP 2:1-AMUX to maintain signal integrity.
Low temperature ferromagnetism, surface paramagnetism and exchange bias effect in nano-grained alpha-Fe1.4Ga0.6O3 oxide
Creators: name: Bhowmik, R. N.
name: Naresh, N.
name: Ghosh, B.
name: Banerjee, S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The compound alpha-Fe1.4Ga0.6O3 has been prepared by mechanical alloying of alpha-Fe2O3 and Ga2O3 and subsequent heating of the mechanical alloyed samples in vacuum condition. Magnetic ordering of alpha-Fe2O3 has been modified by substitution of non-magnetic Ga atoms. The ferromagnetism in alpha-Fe1.4Ga0.6O3 is more soft and enhanced in comparison to alpha-Fe2O3. Mössbauer spectroscopy also confirmed enhanced ferromagnetic order in alpha-Fe1.4Ga0.6O3. The room temperature soft ferromagnetism by Ga substitution is interesting for designing alpha-Fe2O3 based unconventional ferromagnet, which is a great challenge to the materials scientists. The alpha-Fe1.4Ga0.6O3 samples also exhibited features of exchange bias, low temperature surface paramagnetism, and suppression of Morin transition. These features have been affected up to certain extent by the nano-sized grains of the samples.
description: 28 pages
title: Охрана труда
Creators: name: ELS IPR BOOKS
Publisher: name: Профобразование
Year: 2021

description: В учебном пособии изложены основные положения охраны труда: терминология в области охраны труда, основные формы деятельности человека и его работоспособность, классификация опасных и вредных производственных факторов, правовые и организационные вопросы. Издание разработано с учетом последних изменений в законах РФ и нормативных документах по охране труда. Учебное пособие предназначено для студентов всех специальностей и профессий среднего профессионального образования, учебными планами которых предусмотрено изучение дисциплины «Охрана труда».
CH2D+, the Search for the Holy Grail
Creators: name: Roueff, E.
name: Gerin, M.
name: Lis, D. C.
name: Wootten, A.
name: Marcelino, N.
name: cernicharo, J.
name: Tercero, B.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: CH2D+, the singly deuterated counterpart of CH3+, offers an alternative way to mediate formation of deuterated species at temperatures of several tens of K, as compared to the release of deuterated species from grains. We report a longstanding observational search for this molecular ion, whose rotational spectroscopy is not yet completely secure. We summarize the main spectroscopic properties of this molecule and discuss the chemical network leading to the formation of CH2D+, with explicit account of the ortho/para forms of H2, H3+ and CH3+. Astrochemical models support the presence of this molecular ion in moderately warm environments at a marginal level.
description: 25 pages, 6 Figures Accepted in Journal of Physical Chemistry A. "Oka Festschrift: Celebrating 45 years of Astrochemistry"
A New Probe of Naturalness
Creators: name: Craig, Nathaniel
name: Englert, Christoph
name: McCullough, Matthew
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Any new scalar fields that perturbatively solve the hierarchy problem by stabilizing the Higgs mass also generate new contributions to the Higgs field-strength renormalization, irrespective of their gauge representation. These new contributions are physical and their magnitude can be inferred from the requirement of quadratic divergence cancellation, hence they are directly related to the resolution of the hierarchy problem. Upon canonically normalizing the Higgs field these new contributions lead to modifications of Higgs couplings which are typically great enough that the hierarchy problem and the concept of electroweak naturalness can be probed thoroughly within a precision Higgs program. Specifically, at a Linear Collider this can be achieved through precision measurements of the Higgs associated production cross-section. This would lead to indirect constraints on perturbative solutions to the hierarchy problem in the broadest sense, even if the relevant new fields are gauge singlets.
description: 5 pages, 2 figures
High sensitivity differential Magneto-Optical Imaging with a compact Faradaymodulator
Creators: name: Mandal, Pabitra
name: Chowdhury, Debanjan
name: Banerjee, S. S.
name: Tamegai, T.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We present here the design of a sensitive Compact Faraday-modulator (CFM) based optical magnetometer for imaging the distribution of weak local magnetic fields inside hysteretic magnetic materials. The system developed has a root mean square (rms) noise level of 50 mG.Hz-1/2 at a full frame rate of 1 frame per second with each frame being of size 512 x 512 pixels. By measuring the local magnetic field distribution in different superconducting samples we show that our magnetometer provides an order of magnitude improvement in the signal to noise (S/N) ratio at low fields as compared to ordinary magneto-optical imaging technique. Moreover, it provides the required sensitivity for imaging the weak magnetization response near a superconducting transition where a number of other imaging techniques are practically unviable. An advantage of our CFM design is that it can be scaled in size to fit into situations with tight space constraints.
description: 16 pages, 7 figures
Numerical study of shock formation in the dispersionless Kadomtsev-Petviashvili equation and dispersive regularizations
Creators: name: Klein, Christian
name: Roidot, Kristelle
Publisher: name: arXiv
Year: 2013
Subjects: subject: Analysis of PDEs (math.AP)
subject: Numerical Analysis (math.NA)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: The formation of singularities in solutions to the dispersionless Kadomtsev-Petviashvili (dKP) equation is studied numerically for different classes of initial data. The asymptotic behavior of the Fourier coefficients is used to quantitatively identify the critical time and location and the type of the singularity. The approach is first tested in detail in 1+1 dimensions for the known case of the Hopf equation, where it is shown that the break-up of the solution can be identified with prescribed accuracy. For dissipative regularizations of this shock formation as the Burgers' equation and for dispersive regularizations as the Korteweg-de Vries equation, the Fourier coefficients indicate as expected global regularity of the solutions. The Kadomtsev-Petviashvili (KP) equation can be seen as a dispersive regularization of the dKP equation. The behavior of KP solutions for small dispersion parameter $ε\ll 1$ near a break-up of corresponding dKP solutions is studied. It is found that the difference between KP and dKP solutions for the same initial data at the critical point scales roughly as $ε^{2/7}$ as for the Korteweg-de Vries equation.
description: 42 pages
title: Охрана труда: несчастные случаи на производстве и профессиональные заболевания
Creators: name: ELS IPR BOOKS
Publisher: name: Профобразование
Year: 2021

description: В учебном пособии рассматриваются вопросы, связанные с анализом состояния охраны и условий труда в организации. Изложены материалы по расследованию и учету несчастных случаев на производстве и профессиональных заболеваний, а также аспекты обязательного социального страхования таких случаев. В приложениях к изданию в качестве справочного материала приведены журналы, формы и акты, заполнение которых обязательно при расследовании несчастных случаев на производстве и профессиональных заболеваний. Учебное пособие предназначено для студентов всех специальностей и профессий среднего профессионального образования, учебными планами которых предусмотрено изучение дисциплины «Охрана труда».
Online-Bürgerbeteiligung an der Parlamentsarbeit. TAB-Fokus
Creators: name: Oertel, Britta
name: Kahlisch, Carolin
name: Albrecht, Steffen
Publisher: name: Büro für Technikfolgen-Abschätzung beim Deutschen Bundestag (TAB)
Year: 2017

description: Online-Bürgerbeteiligung kann dazu dienen, die Beziehungen zwischen Bürgerschaft und Staat zu verbessern sowie Vertrauen und Legitimität zu stärken. Der Bundestag erprobt seit über 10 Jahren unterschiedliche Verfahren der Online-Bürgerbeteiligung. Die Verfahren tragen zur Transparenz der parlamentarischen Arbeit bei und werden von Teilnehmenden wie Außenstehenden positiv bewertet. Die Beteiligung ist meist qualitativ hochwertig, bleibt aber häufig zahlenmäßig hinter den Erwartungen zurück. Eine Ausnahme stellen die E-Petitionen dar, die den höchsten Bekanntheitsgrad der Beteiligungsverfahren erreichen. Für eine Verstetigung und Weiterentwicklung der Online-Bürgerbeteiligung kommen insbesondere konsultative Formate infrage, als Zeitpunkt haben sich frühe Stadien der Meinungsbildung bewährt. In strategischer Hinsicht empfehlen sich eine weiterhin behutsame, sukzessive Entwicklung der Onlinebeteiligungsangebote sowie deren stärker konzeptuelle Einbindung in die parlamentarische Arbeit.
title: Первичные средства пожаротушения. Ч. 1. Переносные огнетушители
Creators: name: ELS IPR BOOKS
Publisher: name: Профобразование
Year: 2021

description: В учебно-методическом пособии рассмотрены классификация переносных огнетушителей, требования технических регламентов к огнетушителям, характеристика огнетушащих веществ в огнетушителях, устройство огнетушителей, сроки их хранения, а также требования к безопасности. Издание содержит теоретическую и практическую части, а также требования к оформлению лабораторной работы. Учебно-методическое пособие будет полезно при изучении дисциплины «Пожарно-спасательная техника и оборудование» по специальности среднего профессионального образования 20.02.04 «Пожарная безопасность».
A minimal communication approach to parallel time integration
Creators: name: Barker, Andrew T.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: We explore an approach due to Nievergelt of decomposing a time-evolution equation along the time dimension and solving it in parallel with as little communication as possible between the processors. This method computes a map from initial conditions to final conditions locally on slices of the time domain, and then patches these operators together into a global solution using a single communication step. A basic error analysis is given, and some comparisons are made with other parallel in time methods. Based on the assumption that parallel computation is cheap but communication is very expensive, it is shown that this method can be competitive for some problems. We present numerical simulations on graphics chips and on traditional parallel clusters using hundreds of processors for a variety of problems to show the practicality and scalability of the proposed method.
description: 16 pages
title: Первичные средства пожаротушения. Ч. 2. Пожарный кран
Creators: name: ELS IPR BOOKS
Publisher: name: Профобразование
Year: 2021

description: В учебно-методическом пособии рассмотрены технические требования к элементам противопожарного водопровода, к шкафам пожарным, клапанам пожарным запорным, стволам пожарным ручным, а также к трубопроводу и пожарному крану. Издание содержит теоретическую и практическую части, а также требования к оформлению лабораторной работы. Учебно-методическое пособие будет полезно при изучении дисциплины «Пожарно-спасательная техника и оборудование» по специальности среднего профессионального образования 20.02.04 «Пожарная безопасность».
title: Процессы и аппараты химической технологии. Ч. 1. Гидромеханические процессы и аппараты
Creators: name: ELS IPR BOOKS
Publisher: name: Профобразование
Year: 2021

description: В учебном пособии рассмотрены теоретические основы построения, инженерного расчета основных гидромеханических процессов, а также принципы устройства и функционирования аппаратуры. Раскрыты основные понятия и соотношения, основные закономерности протекания гидромеханических процессов. Особое внимание уделяется вопросам гидравлики, структуре потоков и режимам течения жидкостей, перемещению жидкостей и газов. Учебное пособие предназначено для изучения дисциплины «Процессы и аппараты» по специальностям среднего профессионального образования 18.02.07 «Технология производства и переработки пластических масс и эластомеров», 19.02.01 «Биохимическое производство», а также дисциплины «Процессы и аппараты химической технологии» по специальности 18.02.10 «Коксохимическое производство».
The Influence of Outer Solar System Architecture on the Structure and Evolution of the Oort Cloud
Creators: name: Lewis, Alexia R.
name: Quinn, Thomas
name: Kaib, Nathan A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We study the influence of outer Solar System architecture on the structural evolution of the Oort Cloud (OC) and the flux of Earth-crossing comets. In particular, we seek to quantify the role of the giant planets as "planetary protectors". To do so, we have run simulations in each of four different planetary mass configurations to understand the significance of each of the giant planets. Because the outer planets modify the structure of the OC throughout its formation, we integrate each simulation over the full age of the Solar System. Over this time, we follow the evolution of cometary orbits from their starting point in the protoplanetary disk to their injection into the OC to their possible re-entry into the inner planetary region. We find that the overall structure of the OC, including the location of boundaries and the relative number of comets in the inner and outer parts, does not change significantly between configurations; however, as planetary mass decreases, the trapping efficiency (TE) of comets into the OC and the flux of comets into the observable region increases. We determine that those comets that evolve onto Earth-crossing orbits come primarily from the inner OC but show no preference for initial protoplanetary disk location. We also find that systems that have at least a Saturn-mass object are effective at deflecting possible Earth-crossing comets but the difference in flux between systems with and without such a planet is less than an order of magnitude. We conclude by discussing the individual roles of the planets and the implications of incorporating more realistic planetary accretion and migration scenarios into simulations, particularly on existing discrepancies between low TE and the mass of the protoplanetary disk and on determining the structural boundaries of the OC.
description: 13 pages, 6 figures, 2 tables. Accepted to AJ
Propagation of subcycle pulses in a two-level medium: Area-theorem breakdown and pulse shape
Creators: name: Novitsky, Denis
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We solve the problem of ultrashort pulse propagation in a two-level medium beyond the rotating-wave (RWA) and slowly-varying-envelope approximations. The method of solution is based on the Maxwell--Bloch equations represented in the form that allows one to switch between RWA and general (non-RWA) cases in the framework of a single numerical algorithm. Using this method, the effect of a subcycle pulse (containing less than a single period of field oscillations) on the two-level medium was analyzed. It is shown that for such short pulses, the clear breakdown of the area theorem occurs for the pulses of large enough area. Moreover, deviations from the area theorem appear to be strongly dependent on the pulse shape that cannot be observed for longer few-cycle pulses.
description: 5 pages, 4 figures
title: Процессы и аппараты химической технологии. Ч. 2. Тепловые процессы и аппараты
Creators: name: ELS IPR BOOKS
Publisher: name: Профобразование
Year: 2021

description: В учебном пособии рассмотрены основные закономерности протекания тепловых процессов, рассмотрены механизмы переноса тепла — теплопроводность, тепловое излучение и конвекция. Приведена характеристика основных способов подвода тепла к химической аппаратуре и отвода тепла от нее. Представлены конструкции основных типов теплообменных аппаратов — кожухотрубчатых, пластинчатых, аппаратов воздушного охлаждения. Рассмотрен теплообмен, протекающий в трубчатых печах, дана характеристика показателей работы печей. Рассмотрен процесс выпаривания и основные типы выпарных аппаратов. Учебное пособие предназначено для изучения дисциплины «Процессы и аппараты» по специальностям среднего профессионального образования 18.02.07 «Технология производства и переработки пластических масс и эластомеров», 19.02.01 «Биохимическое производство», а также дисциплины «Процессы и аппараты химической технологии» по специальности 18.02.10 «Коксохимическое производство».
Rotational quenching of H2CO by molecular hydrogen: cross-sections, rates, pressure broadening
Creators: name: Wiesenfeld, Laurent
name: Faure, Alexandre
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We compute the rotational quenching rates of the first 81 rotational levels of ortho- and para-H2CO in collision with ortho- and para-H2, for a temperature range of 10-300 K. We make use of the quantum close-coupling and coupled-states scattering methods combined with the high accuracy potential energy surface of Troscompt et al. (2009a). Rates are significantly different from the scaled rates of H2CO in collision with He; consequently, critical densities are noticeably lower. We compare a full close- coupling computation of pressure broadening cross sections with experimental data and show that our results are compatible with the low temperature measurements of Mengel & De Lucia (2000), for a spin temperature of H2 around 50 K.
title: Процессы и аппараты химической технологии. Ч. 3. Массообменные процессы и аппараты
Creators: name: ELS IPR BOOKS
Publisher: name: Профобразование
Year: 2021

description: В учебном пособии рассмотрены основные вопросы теории и расчета типовых массообменных процессов и аппаратов, являющихся составными частями сложных современных технологических установок переработки нефти, природного и попутного углеводородных газов. Учебное пособие предназначено для изучения дисциплины «Процессы и аппараты» по специальностям среднего профессионального образования 18.02.07 «Технология производства и переработки пластических масс и эластомеров», 19.02.01 «Биохимическое производство», а также дисциплины «Процессы и аппараты химической технологии» по специальности 18.02.10 «Коксохимическое производство».
Emergent Odd-Frequency Superconducting Order Parameter near Boundaries in Unconventional Superconductors
Creators: name: Matsumoto, Masashige
name: Koga, Mikito
name: Kusunose, Hiroaki
Publisher: name: arXiv
Year: 2013
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: It was previously suggested that an odd-frequency pair amplitude exists in the vicinity of boundaries in unconventional superconductors. We develop this idea and quest for a novel superconducting order parameter with an odd-frequency dependence. For this purpose, we focus on p-wave superconductors and extend the quasi-classical theory to include the odd-frequency dependence in the order parameter. Both of the frequency and spacial dependences of the order parameter are determined self-consistently. Under a finite electron-phonon interaction, it is found that an odd-frequency order parameter is stabilized near the boundary and coexists with the even-frequency one. By analyzing the induced odd-frequency pair amplitude in terms of the superconducting quasi-particle wavefunction, it is found that the mid-gap bound state generates the emergent odd-frequency order parameter.
description: 15 pages, 10 figures