cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Noise analysis of the Indian Pulsar Timing Array data release I
Creators: name: Srivastava, Aman
name: Desai, Shantanu
name: Kolhe, Neel
name: Surnis, Mayuresh
name: Joshi, Bhal Chandra
name: Susobhanan, Abhimanyu
name: Chalumeau, Aurélien
name: Hisano, Shinnosuke
name: K., Nobleson
name: Arumugam, Swetha
name: Kharbanda, Divyansh
name: Singha, Jaikhomba
name: Tarafdar, Pratik
name: Arumugam, P
name: Bagchi, Manjari
name: Bathula, Adarsh
name: Dandapat, Subhajit
name: Dey, Lankeswar
name: Dwivedi, Churchil
name: Girgaonkar, Raghav
name: Gopakumar, A.
name: Gupta, Yashwant
name: Kikunaga, Tomonosuke
name: Krishnakumar, M. A.
name: Liu, Kuo
name: Maan, Yogesh
name: Manoharan, P K
name: Paladi, Avinash Kumar
name: Rana, Prerna
name: Shaifullah, Golam M.
name: Takahashi, Keitaro
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The Indian Pulsar Timing Array (InPTA) collaboration has recently made its first official data release (DR1) for a sample of 14 pulsars using 3.5 years of uGMRT observations. We present the results of single-pulsar noise analysis for each of these 14 pulsars using the InPTA DR1. For this purpose, we consider white noise, achromatic red noise, dispersion measure (DM) variations, and scattering variations in our analysis. We apply Bayesian model selection to obtain the preferred noise models among these for each pulsar. For PSR J1600$-$3053, we find no evidence of DM and scattering variations, while for PSR J1909$-$3744, we find no significant scattering variations. Properties vary dramatically among pulsars. For example, we find a strong chromatic noise with chromatic index $\sim$ 2.9 for PSR J1939+2134, indicating the possibility of a scattering index that doesn't agree with that expected for a Kolmogorov scattering medium consistent with similar results for millisecond pulsars in past studies. Despite the relatively short time baseline, the noise models broadly agree with the other PTAs and provide, at the same time, well-constrained DM and scattering variations.
description: Accepted for publication in PRD, 30 pages, 17 figures, 4 tables
title: Непосредственные и отдаленные результаты предоперационной подготовки при неопухолевых механических желтухах
Creators: name: Кашаева, Марина
name: Прошин, Андрей
name: Швецов, Дмитрий
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2022

description: Проведен анализ клинических данных 154 больных, находившихся на лечении по поводу механической желтухи неопухолевой этиологии. В зависимости от объёма предоперационной подготовки больные разделены на две группы. Пациенты первой группы в количестве 82 оперированы экстренно после кратковременной традиционной подготовки. Пациенты второй группы в количестве 72 оперированы после комплексной многокомпонентной предоперационной подготовки, предложенной авторами в течение 3–7 дней. Объем оперативных вмешательств в обеих группах был сопоставим, выполнялась холецистэктомия, по показаниям удаление конкрементов из протоков и дренирование желчных путей. У больных с механической желтухой без предоперационной подготовки не про-изошло полной нормализации гомеостатических показателей. В группе пациентов с комплексной предоперационной подготовкой послеоперационный период протекал более благоприятно и показатели гомеостаза нормализовались.
A STUDY ON TRAINING AND DEVELOPMENT OF EMPLOYEES IN RAJALAKSHMI BUILDERS
Creators: name: Dr. N. Amsaveni*, K. Pradeepkumar** & M. S. Raghuraman**
Publisher: name: Zenodo
Year: 2025

description: This study explores the impact of training and development on employee performance at Rajalakshmi Builders. Training and development play a crucial role in enhancing workforce efficiency, reducing workplace risks, and improving job satisfaction. The research examines the effectiveness of various training methods, their frequency, and the challenges faced in implementing them. Using statistical tools such as percentage analysis, chi-square tests, and correlation methods, the study evaluates the relationship between training programs and key outcomes like employee productivity, retention, and career growth. The findings highlight the importance of structured training initiatives in maintaining a competitive edge in the construction industry.
An analysis of a prestressed (buttress type) concrete tank subjected to local tendon failure
Creators: name: Simić, Milan.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Self-organized Growth of Graphene Nanomesh with Increased Gas Sensitivity
Creators: name: König, Matthias
name: Ruhl, Günther
name: Batke, Joerg-Martin
name: Lemme, Max C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A bottom-up chemical vapor deposition (CVD) process for the growth of graphene nanomesh films is demonstrated. The process relies on silicon nanospheres to block nucleation sites for graphene CVD on copper substrates. These spheres are formed in a self-organized way through silicon diffusion through a 5 $μ$m copper layer on a silicon wafer coated with 400 nm of silicon nitride. The temperature during the growth process disintegrates the $Si_3$$N_4$ layer and silicon atoms diffuse to the copper surface, where they form the nanospheres. After graphene nanomesh growth, the Si nanospheres can be removed by a simple hydrofluoric acid etch, leaving holes in the graphene film. The nanomesh films have been successfully transferred to different substrates, including gas sensor test structures, and verified and characterized by Auger, TEM and SEM measurements. Electrical/gas-exposure measurements show a 2-fold increase in ammonia sensitivity compared to plain graphene sensors. This improvement can be explained by a higher adsorption site density (edge sites). This new method for nanopatterned graphene is scalable, inexpensive and can be carried out in standard semiconductor industry equipment. Furthermore, the substrates are reusable.
description: 13 pages, 3 figures
Realistic Detectability of Close Interstellar Comets
Creators: name: Cook, Nathaniel V.
name: Ragozzine, Darin
name: Granvik, Mikael
name: Stephens, Denise C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: During the planet formation process, billions of comets are created and ejected into interstellar space. The detection and characterization of such interstellar comets (also known as extra-solar planetesimals or extra-solar comets) would give us in situ information about the efficiency and properties of planet formation throughout the galaxy. However, no interstellar comets have ever been detected, despite the fact that their hyperbolic orbits would make them readily identifiable as unrelated to the solar system. Moro-Martín et al. 2009 have made a detailed and reasonable estimate of the properties of the interstellar comet population. We extend their estimates of detectability with a numerical model that allows us to consider "close" interstellar comets, e.g., those that come within the orbit of Jupiter. We include several constraints on a "detectable" object that allow for realistic estimates of the frequency of detections expected from the Large Synoptic Survey Telescope (LSST) and other surveys. The influence of several of the assumed model parameters on the frequency of detections is explored in detail. Based on the expectation from Moro-Martín et al. 2009, we expect that LSST will detect 0.001-10 interstellar comets during its nominal 10-year lifetime, with most of the uncertainty from the unknown number density of small (nuclei of $\sim$0.1-1 km) interstellar comets. Using simulated LSST-like astrometric data, we study the problem of orbit determination for these bodies, finding that LSST could identify their orbits as hyperbolic and determine an ephemeris sufficiently accurate for follow-up in about 4-7 days. We give the hyperbolic orbital parameters of the most detectable interstellar comets. Taking the results into consideration, we give recommendations to future searches for interstellar comets.
description: Published in Astrophysical Journal, 18 pages, 5 figures
Cross sections for inelastic $K$+$ϕ$ scattering
Creators: name: Pan, Yi-Hao
name: Xu, Xiao-Ming
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In the first Born approximation we study the reactions $Kϕ\toπK$, $ρK$, $πK^*$, and $ρK^*$ with quark-antiquark annihilation and creation. Transition amplitudes are derived with the development in spherical harmonics of the relative-motion wave functions of the two initial mesons and of the two final mesons so that parity is conserved and the total angular momentum of the final mesons equals the one of the initial mesons. Unpolarized cross sections are calculated from the transition amplitudes that also contain mesonic quark-antiquark relative-motion wave functions and transition potentials for quark-antiquark annihilation and creation. Notable temperature dependence of the cross sections is shown. While the cross sections for $Kϕ\toρK$, $Kϕ\toπK^*$, and $Kϕ\toρK^*$ may be of the millibarn scale, the cross section for $Kϕ\toπK$ is very small.
description: more discussions added
title: Изменение состава микробиоты как предиктор развития инфекций кровото-ка при гемобластозах
Creators: name: Кулешова, Александра
name: Чеботкевич, Виталий
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2022

description: Множественная миелома (ММ) составляет около 1% среди онкологических заболеваний и более 10% от общего числа гемобластозов. Высокодозная химиотерапия с последующей аутологичной трансплантацией гемопоэтических стволовых клеток (аутоТГСК) является стандартным методом лечения ММ. Существенную роль в развитии инфекций кровотока при гемобластозах и, в частности, при ММ играет эндогенное инфицирование крови через кишечник. Ведущим фактором, способствующим возникновению нарушений микробиома, является антибактериальная терапия. Появление новых лекарственных средств, таких как ингибиторы протеасом и моноклональных антител, не исключили аутоТГСК и сохранили ее важное значение при лечении больных. Целью нашего исследования явилось изучение изменения микробиома кишечника до аутоТГСК и после ее проведения у пациентов с ММ.
Советский опыт борьбы с преступностью: некоторые размышления в связи с монографией Д. В. Иванова «Государственно-правовой концепт и практика борьбы с преступностью на Северо-Западе РСФСР в 1917– 1991 годах» (СПб.: Юридический центр, 2018. 480 с.)
Creators: name: Кожевина Марина Анатольевна
Publisher: name: Петербургский исторический журнал
Year: 2020
Subjects: история государства и права России
нормативные правовые акты
государственно-правовые подходы
борьба с преступностью
правоохранительные органы
Северо-Запад РСФСР
1917– 1991 гг.

description: В статье рецензируется монография Д. В. Иванова «Государственно-правовой концепт и практика борьбы с преступностью на Северо-Западе РСФСР в 1917–1991 годах», содержание которой посвящено анализу государственно-правовых подходов и практическим мерам борьбы с преступностью в северо-западном регионе РСФСР. Работа является заметным событием в историко-правовой науке, значима для понимания механизма борьбы с преступностью на различных этапах функционирования советского государства, общества и права.
Deep probing of the photospheric sunspot penumbra: no evidence for magnetic field-free gaps
Creators: name: Borrero, J. M.
name: Ramos, A. Asensio
name: Collados, M.
name: Schlichenmaier, R.
name: Balthasar, H.
name: Franz, M.
name: Rezaei, R.
name: Kiess, C.
name: Suarez, D. Orozco
name: Pastor, A.
name: Berkefeld, T.
name: von der Luehe, O.
name: Schmidt, D.
name: Schmidt, W.
name: Sigwarth, M.
name: Soltau, D.
name: Volkmer, R.
name: Waldmann, T.
name: Denker, C.
name: Hofmann, A.
name: Staude, J.
name: Strassmeier, K. G.
name: Feller, A.
name: Lagg, A.
name: Solanki, S. K.
name: Sobotka, M.
name: Nicklas, H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Some models for the topology of the magnetic field in sunspot penumbrae predict the existence of field-free or dynamically weak-field regions in the deep Photosphere. To confirm or rule out the existence of weak-field regions in the deepest photospheric layers of the penumbra. The magnetic field at $\logτ_5=0$ is investigated by means of inversions of spectropolarimetric data of two different sunspots located very close to disk center with a spatial resolution of approximately 0.4-0.45 arcsec. The data have been recorded using the GRIS instrument attached to the 1.5-meters GREGOR solar telescope at El Teide observatory. It includes three Fe I lines around 1565 nm, whose sensitivity to the magnetic field peaks at half a pressure-scale-height deeper than the sensitivity of the widely used Fe I spectral line pair at 630 nm. Prior to the inversion, the data is corrected for the effects of scattered light using a deconvolution method with several point spread functions. At $\logτ_5=0$ we find no evidence for the existence of regions with dynamically weak ($B<500$ Gauss) magnetic fields in sunspot penumbrae. This result is much more reliable than previous investigations done with Fe I lines at 630 nm. Moreover, the result is independent of the number of nodes employed in the inversion, and also independent of the point spread function used to deconvolve the data, and does not depend on the amount of straylight (i.e. wide-angle scattered light) considered.
description: Accepted for publication in Astronomy & Astrophysics
Molecular Dynamics Simulations of Chemically Disordered Ferroelectric (Ba,Sr)TiO$_3$ with a Semi-Empirical Effective Hamiltonian
Creators: name: Nishimatsu, Takeshi
name: Gruenebohm, Anna
name: Waghmare, Umesh V.
name: Kubo, Momoji
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a semi-empirical effective Hamiltonian to capture effects of disorder associated with Ba and Sr cations occupying $A$ sites in (Ba$_{x}$Sr$_{1-x}$)TiO$_3$ on its ferroelectric phase transition. Averaging between the parameters of first-principles effective Hamiltonians of end members BaTiO$_3$ and SrTiO$_3$, we include a term with an empirical parameter to capture the local polarization and strains arising from the difference between ionic radii of Ba and Sr. Using mixed-space molecular dynamics of the effective Hamiltonian, we determine $T$-dependent ferroelectric phase transitions in (Ba$_{x}$Sr$_{1-x}$)TiO$_3$ which are in good agreement with experiment. Our scheme of determination of semi-empirical parameters in effective Hamiltonian should be applicable to other perovskite-type ferroelectric solid solutions.
description: 7 pages, 6 figures, submitted to JPSJ
title: Возрастные особенности ремоделирования стенки сонной артерии и миокарда левого желудочка у пациентов с артериальной гипертензией
Creators: name: Кулик, Надежда
name: Вебер, Виктор
name: Жмайлова, Светлана
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2022

description: Проведен анализ частоты ремоделирования стенки общей сонной артерии (ОСА) и миокарда левого желу-дочка (ЛЖ) у пациентов с артериальной гипертензией (АГ) 2 степени, не получающих регулярной антигипертензив-ной терапии старше 40 лет без клинических проявлений поражения органов-мишеней. Были сформированы под-группы в зависимости от возраста: группа 1 (n = 23; средний возраст 45,13±0,95 лет) и группа 2 (n = 23; средний воз-раст 54,93±0,46 лет). Средняя продолжительность АГ составила 4,5 года. При ультразвуковом исследовании оцени-вались толщина задней стенки ЛЖ и межжелудочковой перегородки, варианты геометрии миокарда, толщина ком-плекса интима-медиа (ТКИМ). В результате проведенного исследования значимых различий в распространенности гипертрофии ЛЖ в группах в зависимости от возраста не было выявлено (34,8% и 39,1%).
ПРОЧНОСТЬ ЦЕМЕНТНОГО КАМНЯ С МИНЕРАЛЬНЫМИ ДОБАВКАМИ НА ОСНОВЕ ОБОЖЖЕННОЙ ГЛИНЫ И КАРБОНАТНЫХ ПОРОД
Creators: name: БАЛЫКОВ АРТЕМИЙ СЕРГЕЕВИЧ
name: НИЗИНА ТАТЬЯНА АНАТОЛЬЕВНА
name: ВОЛОДИН ВЛАДИМИР ВЛАДИМИРОВИЧ
name: КОРОВКИН ДМИТРИЙ ИГОРЕВИЧ
Publisher: name: Эксперт: теория и практика
Year: 2020
Subjects: ЦЕМЕНТНЫЙ КАМЕНЬ
МИНЕРАЛЬНАЯ ДОБАВКА
ОБОЖЖЕННАЯ ГЛИНА
КАРБОНАТНЫЕ ПОРОДЫ
ПРОЧНОСТЬ ПРИ СЖАТИИ
CEMENT STONE
MINERAL ADDITIVE
CALCINED CLAY
CARBONATE ROCKS
COMPRESSIVE STRENGTH

description: Приведены результаты исследования прочности при сжатии цементного камня в возрасте 1, 7 и 28 суток, модифицированного поликарбоксилатным суперпластификатором и минеральными добавками на основе местных сырьевых ресурсов Республики Мордовия обожженная полиминеральная глина, доломит и термоактивированная смесь глины и известняка. Зафиксирован высокий темп набора прочности цементных композитов при сжатии в возрасте 1 и 7 суток 41-50 и 75-86% от прочности в возрасте 28 суток соответственно. Выявлены оптимальные дозировки минеральных добавок обожженной глины и термоактивированной смеси глины и известняка, способствующие повышению прочностных показателей цементного камня относительно контрольного бездобавочного состава не более 19 и 12% от массы твердой фазы соответственно. Установлена относительная химическая инертность Ельниковского доломита в цементных системах.Study results of cement stone compressive strength aged 1, 7 and 28 days, modified withpolycarboxylate superplasticizer and mineral additives based on local raw materials of the Republic of Mordovia (calcined polymineral clay, dolomite and thermally activated mixture of clay and limestone) are presented. High rate of increasing cement composites compression strength at the age of 1 and 7 days (41-50 and 75-86% of the strength at the age of 28 days, respectively) was recorded. Optimal dosages of mineral additives of calcined clay and thermally activated mixture of clay and limestone are identified, the sizes of which do not exceed 19 and 12 % by binder weight, respectively, which contribute to an increase in strength characteristics of cement stone relative to the control composition without additives. The relative chemical inertness of Elnikovsky dolomite in cement systems is revealed.
Kinetic corrections from analytic non-Maxwellian distribution functions in magnetized plasmas
Creators: name: Izacard, Olivier
Publisher: name: arXiv
Year: 2016
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Accelerator Physics (physics.acc-ph)
subject: Atomic Physics (physics.atom-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: In magnetized plasma physics, almost all developed analytic theories assume a Maxwellian distribution function (MDF) and in some cases small deviations are described using the perturbation theory. The deviations with respect to the Maxwellian equilibrium, called kinetic effects, are required to be taken into account specially for fusion reactor plasmas. Generally, because the perturbation theory is not consistent with observed steady-state non-Maxwellians, these kinetic effects are numerically evaluated by very CPU-expensive codes, avoiding the analytic complexity of velocity phase space integrals. We develop here a new method based on analytic non-Maxwellian distribution functions constructed from non-orthogonal basis sets in order to (i) use as few parameters as possible, (ii) increase the efficiency to model numerical and experimental non-Maxwellians, (iii) help to understand unsolved problems such as diagnostics discrepancies from the physical interpretation of the parameters, and (iv) obtain analytic corrections due to kinetic effects given by a small number of terms and removing the numerical error of the evaluation of velocity phase space integrals. This work does not attempt to derive new physical effects even if it could be possible to discover one from the better understandings of some unsolved problems, but here we focus on the analytic prediction of kinetic corrections from analytic non-Maxwellians. As applications, examples of analytic kinetic corrections are shown for the secondary electron emission, the Langmuir probe characteristic curve, and the entropy. This is done by using three analytic representations of the distribution function: the Kappa (KDF), the bi-modal or a new interpreted non-Maxwellian (INMDF) distribution function. [...]
description: 15 pages, 12 figures
Bridging closed and dissipative discrete time crystals in spin systems with infinite-range interactions
Creators: name: Cosme, Jayson G.
name: Skulte, Jim
name: Mathey, Ludwig
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We elucidate the role that the dissipation in a bosonic channel plays in the prevalence and stability of time crystals (TCs) in a periodically driven spin-boson system described by the Dicke model. Here, the bosons are represented by photons, and they mediate the infinite-range interactions between the spin systems. For strong dissipation, we study the dynamics using an effective atom-only description and the closed Lipkin-Meshkov-Glick model. By mapping out the phase diagrams for varying dissipation strengths, ranging from zero to infinitely strong, we demonstrate that the area in the phase diagram, where a TC exists, grows with the dissipation strength but only up to an optimal point, beyond which most of the TCs become unstable. We find TCs in both closed-system and dissipative regimes, but dissipative TCs are shown to be more robust against random noise in the drive, and are only weakly affected by the choice of initial state. We present the finite-sized behaviour and the scaling of the lifetime of the TCs with respect to the number of spins and the interaction strength within a fully quantum mechanical description.
description: 16 pages, 14 figures
Метаморфозы «крестьянской» памяти
Creators: name: Кедров Николай Геннадьевич
Publisher: name: Петербургский исторический журнал
Year: 2020

description: Рецензия на книгу: Кознова И. Е. Сталинская эпоха в памяти крестьянства России. М.: Политическая энциклопедия, 2016. 464 с.
Expert database system in contamination control
Creators: name: Yu, Chuen Keung.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
DynaLog: An automated dynamic analysis framework for characterizing Android applications
Creators: name: Alzaylaee, Mohammed K.
name: Yerima, Suleiman Y.
name: Sezer, Sakir
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Android is becoming ubiquitous and currently has the largest share of the mobile OS market with billions of application downloads from the official app market. It has also become the platform most targeted by mobile malware that are becoming more sophisticated to evade state-of-the-art detection approaches. Many Android malware families employ obfuscation techniques in order to avoid detection and this may defeat static analysis based approaches. Dynamic analysis on the other hand may be used to overcome this limitation. Hence in this paper we propose DynaLog, a dynamic analysis based framework for characterizing Android applications. The framework provides the capability to analyse the behaviour of applications based on an extensive number of dynamic features. It provides an automated platform for mass analysis and characterization of apps that is useful for quickly identifying and isolating malicious applications. The DynaLog framework leverages existing open source tools to extract and log high level behaviours, API calls, and critical events that can be used to explore the characteristics of an application, thus providing an extensible dynamic analysis platform for detecting Android malware. DynaLog is evaluated using real malware samples and clean applications demonstrating its capabilities for effective analysis and detection of malicious applications.
description: 2016 International Conference On Cyber Security And Protection Of Digital Services (Cyber Security)
ВЫРАВНИВАНИЕ НАПРЯЖЕНИЙ В ЭЛЕМЕНТАХ С ОТВЕРСТИЯМИ ЗА СЧЕТ ПРИМЕНЕНИЯ МАТЕРИАЛОВ С НАПРАВЛЕННОЙ СТРУКТУРОЙ
Creators: name: ЛАЗАРЕВ АЛЕКСАНДР ЛЬВОВИЧ
name: КОЕШОВ НУРДИН МАТЕЛОВИЧ
Publisher: name: Эксперт: теория и практика
Year: 2020
Subjects: НАПРЯЖЕННО-ДЕФОРМИРОВАННОЕ СОСТОЯНИЕ
ОТВЕРСТИЯ
КОНЦЕНТРАЦИЯ НАПРЯЖЕНИЙ
МОДУЛЬ УПРУГОСТИ
КОЭФФИЦИЕНТ ПУАССОНА
STRESS-STRAIN STATE
HOLES
STRESS CONCENTRATION
MODULUS OF ELASTICITY
POISSON’S RATIO

description: Приведено описание решения задачи снижения локальных напряжений в области технологических отверстий за счет направленного изменения упругих характеристик материала конструкции в соответствии с желательным наряженным состоянием.A description of the solution to the problem of reducing local stresses in the area of process holes due to a directional change in the elastic characteristics of the construction material in accordance with the desired dressed state is given.
Towards a multi-scale understanding of the gas-star formation cycle in the Central Molecular Zone
Creators: name: Kruijssen, J. M. Diederik
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The Central Molecular Zone (CMZ, the central 500 pc of the Milky Way) contains the largest reservoir of high-density molecular gas in the Galaxy, but forms stars at a rate 10-100 times below commonly-used star formation relations. We discuss recent efforts in understanding how the nearest galactic nucleus forms its stars. The latest models of the gas inflow, star formation, and feedback duty cycle reproduce the main observable features of the CMZ, showing that star formation is episodic and that the CMZ currently resides at a star formation minimum. Using orbital modelling, we derive the three-dimensional geometry of the CMZ and show how the orbital dynamics and the star formation potential of the gas are closely coupled. We discuss how this coupling reveals the physics of star formation and feedback under the conditions seen in high-redshift galaxies, and promotes the formation of the densest stellar clusters in the Galaxy.
description: 11 pages, 3 figures; keynote talk to appear in the proceedings of IAU Symposium 322, The Multi-Messenger Astrophysics of the Galactic Centre, Eds. R. Crocker, S. Longmore & G. Bicknell, Cambridge University Press
Exclusive diffractive bremsstrahlung of one and two photons at forward rapidities: Possibilities for experimental studies in $pp$ collisions at the LHC
Creators: name: Lebiedowicz, Piotr
name: Nachtmann, Otto
name: Szczurek, Antoni
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We evaluate the cross section for diffractive bremsstrahlung of a single photon in the $pp \to pp γ$ reaction at high energies and at forward photon rapidities. Several differential distributions, for instance, in $y$, $k_{\perp}$ and $ω$, the rapidity, the absolute value of the transverse momentum, and the energy of the photon, respectively, are presented. We compare the results for our standard approach, based on QFT and the tensor-pomeron model, with two versions of soft-photon-approximations, SPA1 and SPA2, where the radiative amplitudes contain only the leading terms proportional to $ω^{-1}$. The SPA1, which does not have the correct energy-momentum relations, performs surprisingly well in the kinematic range considered. We discuss also azimuthal correlations between outgoing particles. The azimuthal distributions are not isotropic and are different for our standard model and SPAs. We discuss also the possibility of a measurement of two-photon-bremsstrahlung in the $pp \to pp γγ$ reaction. In our calculations we impose a cut on the relative energy loss ($0.02 < ξ_{i} < 0.1$, $i = 1,2$) of the protons where measurements by the ATLAS Forward Proton (AFP) detectors are possible. The AFP requirement for both diffractively scattered protons and one forward photon (measured at LHCf) reduces the cross section for $p p \to p p γ$ almost to zero. On the other hand, much less cross-section reduction occurs for $pp \to pp γγ$ when photons are emitted in opposite sides of the ATLAS interaction point and can be measured by two different arms of LHCf. For the SPA1 ansatz we find $σ(pp \to pp γγ) \simeq 0.03$ nb at $\sqrt{s} = 13$ TeV and with the cuts $0.02 < ξ_{i} < 0.1$, $8.5 < y_{3} < 9$, $-9 < y_{4} < -8.5$. Our predictions can be verified by ATLAS and LHCf combined experiments.
description: 18 pages, 9 figures. In v2 we discussed the role of the $p p \to p p \pi^0$ background for single photon production
Searching for Brown Dwarf Companions to White Dwarfs
Creators: name: French, Jenni
Publisher: name: University of Leicester
Year: 2025

description: To date, thousands of exoplanets have been discovered and characterised but the high contrast between planets and their host stars makes atmospheric studies difficult. White dwarf–brown dwarf binaries offer unique opportunities to study brown dwarfs and their atmospheres with minimal contamination from the host star when observing in the infrared. Although up to 0.5% of white dwarfs are predicted to have brown dwarf companions, these systems are rare, with only ∼10 known close white dwarf–brown dwarf binaries, and ∼7 such binaries with a wide separation. In this thesis, I present the discovery and characterisation of multiple white dwarf–brown dwarf binary systems. With near-infrared spectroscopy, I find a new wide white dwarf–brown dwarf binary SDSS J2225+0016, which has the third smallest separation for a spatially resolved white dwarf–brown dwarf binary after GD 165AB and PHL 5038AB. I characterise the orbit as well as the brown dwarf and compare this binary to other brown dwarf and exoplanetary systems. I analyse new infrared spectroscopic data of the close, eclipsing white dwarf–brown dwarf binary WD1032+011, extracting the phase-dependent spectra of the brown dwarf. I show the effects of constant irradiation on the atmosphere of the brown dwarf, causing a dayside-nightside temperature contrast and slowing the contraction of the brown dwarf such that its radius is inflated. I examine the candidate white dwarf–brown dwarf binary WD0950+0115 using near-infrared and optical spectroscopy to determine the presence of a companion that causes a radial velocity variation in the Hα and Hβ lines in the atmosphere of the white dwarf. I also present near-infrared spectroscopy of 10 candidate brown dwarf companions to white dwarfs identified via the Backyard Worlds citizen science project. I identify 7 new brown dwarf companions amongst this sample, determining their spectral types, thus adding to the small sample of these rare binaries.
Optimisation of the Boyer PM2 saveall
Creators: name: Loy, Bradley John.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
A Generalized Read-Shockley Model and Large Scale Simulations for the Energy and Structure of Graphene Grain Boundaries
Creators: name: Shekhawat, Ashivni
name: Ophus, Colin
name: Ritchie, Robert O.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The grain boundary (GB) energy is a quantity of fundamental importance for understanding several key properties of graphene. Here we present a comprehensive theoretical and numerical study of the entire space of symmetric and asymmetric graphene GBs. We have simulated over 79,000 graphene GBs to explore the configuration space of GBs in graphene. We use a generalized Read-Shockley theory and the Frank-Bilby relation to develop analytical expressions for the GB energy as a function of the misorientation angle and the line angle, and elucidate the salient structural features of the low energy GB configurations.
ПРОЧНОСТЬ СЖАТЫХ И РАСТЯНУТЫХ НАКЛОННЫХ ПОЛОС В СТЕНАХ ИЗ КИРПИЧНОЙ КЛАДКИ ПРИ ИЗМЕНЕНИИ УГЛА НАКЛОНА ПОСТЕЛЬНЫХ ШВОВ
Creators: name: ЛАСЬКОВ НИКОЛАЙ НИКОЛАЕВИЧ
Publisher: name: Эксперт: теория и практика
Year: 2020
Subjects: ПРОЧНОСТЬ
КИРПИЧНАЯ КЛАДКА
СЖАТЫЕ И РАСТЯНУТЫЕ НАКЛОННЫЕ ПОЛОСЫ
УГОЛ ОРИЕНТАЦИИ ПОСТЕЛЬНЫХ ШВОВ
STRENGTH
MASONRY
COMPRESSED AND STRETCHED
OBLIQUE STRIPES
THE ANGLE OF ORIENTATION OF THE BED SEAMS

description: Приводятся результаты анализа изменения прочности сжатых и растянутых наклонных полос в стенах из кирпичной кладки при изменении угла ориентации постельных швов.The results of the analysis of changes in the strength of compressed and stretched sloping strips in walls made of brickwork when changing the orientation angle of bed seams are presented.
Advances and Applications of Computer Vision Techniques in Vehicle Trajectory Generation and Surrogate Traffic Safety Indicators
Creators: name: Abdel-Aty, Mohamed
name: Wang, Zijin
name: Zheng, Ou
name: Abdelraouf, Amr
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: The application of Computer Vision (CV) techniques massively stimulates microscopic traffic safety analysis from the perspective of traffic conflicts and near misses, which is usually measured using Surrogate Safety Measures (SSM). However, as video processing and traffic safety modeling are two separate research domains and few research have focused on systematically bridging the gap between them, it is necessary to provide transportation researchers and practitioners with corresponding guidance. With this aim in mind, this paper focuses on reviewing the applications of CV techniques in traffic safety modeling using SSM and suggesting the best way forward. The CV algorithm that are used for vehicle detection and tracking from early approaches to the state-of-the-art models are summarized at a high level. Then, the video pre-processing and post-processing techniques for vehicle trajectory extraction are introduced. A detailed review of SSMs for vehicle trajectory data along with their application on traffic safety analysis is presented. Finally, practical issues in traffic video processing and SSM-based safety analysis are discussed, and the available or potential solutions are provided. This review is expected to assist transportation researchers and engineers with the selection of suitable CV techniques for video processing, and the usage of SSMs for various traffic safety research objectives.
title: Взаимосвязь социальных условий проживания и повышенного уровня артериального давления у подростков 12–13 лет
Creators: name: Оспанова, Айнур
name: Керимкулова, Айман
name: Рымбаева, Тамара
name: Мусабекова, Жанна
name: Адильгожина, Салтанат
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2022

description: Воздействие социального благополучия на уровень артериального давления у подростков 12–13 лет является актуальной темой на сегодняшний день. Значение благоустроенности жилья является важной составляющей жизни любого человека, тем более подростка. В ходе исследования изучено влияние различных социальных аспектов и образа жизни подростков 12–13 лет на повышение уровня АД. В исследование вошли данные опроса 1519 под-ростков 12–13 лет: мальчики — 49,1% (n = 745), девочки – 50,9% (n = 774). Выявлена связь благоустроенности жилья и повышенного АД, значимое среди девочек, и этнические различия среди подростков-казахов. Собственное благосостояние глазами подростка более чем в 76% случаев выглядит как самое лучшее.
Quantum ergodicity and $L^p$ norms of restrictions of eigenfunctions
Creators: name: Hezari, Hamid
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: Classical Analysis and ODEs (math.CA)
subject: Differential Geometry (math.DG)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics

description: We prove an analogue of Sogge's local $L^p$ estimates for $L^p$ norms of restrictions of eigenfunctions to submanifolds, and use it to show that for quantum ergodic eigenfunctions one can get improvements of the results of Burq-Gérard-Tzvetkov, Hu, and Chen-Sogge. The improvements are logarithmic on negatively curved manifolds (without boundary) and by $o(1)$ for manifolds (with or without boundary) with ergodic geodesic flows. In the case of ergodic billiards with piecewise smooth boundary, we get $o(1)$ improvements on $L^\infty$ estimates of Cauchy data away from a shrinking neighborhood of the corners, and as a result using the methods of Ghosh-Reznikov-Sarnak and Jung-Zelditch, we get that the number of nodal domains of two dimensional ergodic billiards tends to infinity as $λ\to \infty$. These results work only for a full density subsequence of any given orthonormal basis of eigenfunctions. We also present an extension of the $L^p$ estimates of Burq-Gérard-Tzvetkov, Hu, and Chen-Sogge, for the restrictions of Dirichlet and Neumann eigenfunctions to compact submanifolds of the interior of manifolds with piecewise smooth boundary. This part does not assume ergodicity on the manifolds.
ВЛИЯНИЕ УСЛОВИЙ ЗАМОРАЖИВАНИЯ НА МОРОЗОСТОЙКОСТЬ СТРОИТЕЛЬНЫХ КОМПОЗИТОВ
Creators: name: НЕПОМЯЩИЙ АЛЕКСАНДР НИКОЛАЕВИЧ
name: ВЫРОВОЙ ВАЛЕРИЙ НИКОЛАЕВИЧ
name: СУХАНОВ ВЛАДИМИР ГЕННАДИЕВИЧ
Publisher: name: Эксперт: теория и практика
Year: 2020
Subjects: СВОЙСТВА МАТЕРИАЛА
ЛОКАЛЬНОЕ ЗАМОРАЖИВАНИЕ И ОТТАИВАНИЕ
СТРУКТУРНЫЕ ИЗМЕНЕНИЯ
MATERIAL PROPERTIES
LOCAL FREEZING AND THAWING
STRUCTURAL CHANGES

description: Значительное количество строительных изделий и конструкций претерпевают при эксплуатации циклические односторонние (локальные) воздействия отрицательных температур. Это неизбежно ведет к возникновению и развитию градиентов температурных деформаций по сечению изделия, что провоцирует изменение условий работы материала изделий. В представленной работе приведены сведенья о влиянии условий многократного замораживания и оттаивания на изменение физико-механических свойств и морозостойкости строительных композитов. Полученные экспериментальные результаты дают основания заключить, что условия воздействия отрицательных температур на изделия и конструкции в значительной степени влияют на способность материала сопротивляться морозному разрушению.A significant number of building products and structures undergo cyclic unilateral (local) effects of negative temperatures during operation. This inevitably leads to the emergence and development of temperature strain gradients over the product cross section, which provokes a change in the working conditions of the product material. In the present work, information is presented on the influence of repeated freezing and thawing conditions on the change in the physicomechanical properties and frost resistance of building composites. The obtained experimental results suggest that the conditions of exposure to negative temperatures on products and structures significantly affect the ability of the material to resist frost damage.
On the origin of horseshoes in transitional discs
Creators: name: Ragusa, Enrico
name: Dipierro, Giovanni
name: Lodato, Giuseppe
name: Laibe, Guillaume
name: Price, Daniel J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We investigate whether the rings, lopsided features and horseshoes observed at millimetre wavelengths in transitional discs can be explained by the dynamics of gas and dust at the edge of the cavity in circumbinary discs. We use 3D dusty smoothed particle hydrodynamics calculations to show that binaries with mass ratio $q \gtrsim 0.04$ drive eccentricity in the central cavity, naturally leading to a crescent-like feature in the gas density, which is accentuated in the mm dust grain population with intensity contrasts in mm-continuum emission of 10 or higher. We perform mock observations to demonstrate that these features closely match those observed by ALMA, suggesting that the origin of rings, dust horseshoes and other non-axisymmetric structures in transition discs can be explained by the presence of massive companions.
description: 7 pages, 3 figures, 1 table, accepted for publication in MNRAS
title: Выявление ранних признаков поверхностно-распространяющихся меланом с использованием компьютерных технологий
Creators: name: Рисс, Мария
name: Нумерицкая, Катерина
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2022

description: Узловые меланомы кожи встречаются в 47% случаев диагностики меланом и требуют более сложного и дорогостоящего лечения. Проведенный анализ уровня диагностики меланом кожи в Новгородской области показывает увеличение встречаемости данной патологии более чем в 1,5 раза за последние десять лет. Для ранней диагностики поверхностно-распространяющихся меланом впервые применен неинвазивный способ ZOOM-диагностики с использованием портативного USB-микроскопа. Новообразования предварительно окрашивали по типу Ван-Гизона с целью ранней диагностики меланом кожи и активизации пигментных невусов. В случае активизации с возможной трансформацией пигментных невусов наблюдаются изменения структуры, которые выводятся на экран. На основе полученных данных может быть сформирована электронная библиотека.
The influence of bismuth on the corrosion of lead in 5 M H2SO4
Creators: name: Koop, Michael James.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
ТРЕЩИНООБРАЗОВАНИЕ В КРУПНОПОРИСТОМ БЕТОНЕ С ИНТЕГРАЛЬНЫМ РАСПОЛОЖЕНИЕМ КРУПНОГО ЗАПОЛНИТЕЛЯ
Creators: name: ПИЧУГИН АНАТОЛИЙ ПЕТРОВИЧ
name: ХРИТАНКОВ ВЛАДИМИР ФЕДОРОВИЧ
name: СМИРНОВА ОЛЬГА ЕВГЕНЬЕВНА
name: ПИМЕНОВ ЕВГЕНИЙ ГЕННАДЬЕВИЧ
Publisher: name: Эксперт: теория и практика
Year: 2020
Subjects: LARGE-POROUS LIGHT CONCRETE
SLAG GRANULES
EXPANDED CLAY GRAVEL
CRACK FORMATION
CONTACT ZONE OF A LARGE FILLER
CEMENT MATRIX

description: При решении задачи получения и исследования легких крупнопористых бетонов на основе топливных шлаков и керамзитового гравия были изучены физико-механические свойства нового материала и подтверждена возможность их использования в качестве крупного заполнителя. Разработаны рациональные составы материала и защитной композиции для гранул шлака, способствующие обеспечить повышение прочностных параметров. Дальнейшее изучение свойства потребовало провести комплекс исследований по эксплуатационной стойкости крупнопористого легкого бетона под нагрузкой и определить максимально допустимые напряжения в материале до образования трещин. Проведенные испытания показали, что наиболее уязвимым местом в крупнопористом легком бетоне является контактная зона между крупным заполнителем и цементной матрицей.The physio-mechanical properties of the new material have been studied during the receiving and research process of large-porous light concrete on the basis of slag granules and expanded clay gravel. The possibility of using them as a large filler has been confirmed. Rational compositions of material and protective composition for slag granules were developed. This could increase strength parameters. Further examination of the characteristic required a complex of studies on the operational stability of large-porous light concrete that was under pressure as well as the determination of the maximum acceptable stress in the material before the crack formation. Tests have shown that the most vulnerable place in large-porous light concrete is the contact zone between the large filling substance and the cement matrix.
Paradox of integration -- a computational model
Creators: name: Krawczyk, Malgorzata J.
name: Kulakowski, Krzysztof
Publisher: name: arXiv
Year: 2016
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: The paradoxical aspect of integration of a social group has been highlighted by Peter Blau (Exchange and Power in Social Life, Wiley and Sons, 1964). During the integration process, the group members simultaneously compete for social status and play the role of the audience. Here we show that when the competition prevails over the desire of approval, a sharp transition breaks all friendly relations. However, as was described by Blau, people with high status are inclined to bother more with acceptance of others; this is achieved by praising others and revealing her/his own weak points. In our model, this action smooths the transition and improves interpersonal relations.
ФРАКТАЛЬНАЯ ПРИРОДА МАСШТАБНОГО ЭФФЕКТА ПРОЧНОСТИ БЕТОНА
Creators: name: СЕЛЯЕВ ВЛАДИМИР ПАВЛОВИЧ
name: СЕЛЯЕВ ПАВЕЛ ВЛАДИМИРОВИЧ
name: ГОРЕНКОВ АЛЕКСАНДР ОЛЕГОВИЧ
name: БЕЗРУКОВА ЕВГЕНИЯ СЕРГЕЕВНА
name: КЕЧУТКИНА ЕВГЕНИЯ ЛЬВОВНА
Publisher: name: Эксперт: теория и практика
Year: 2020
Subjects: ФРАКТАЛ
МОДЕЛЬ
БЕТОН
РАЗРУШЕНИЕ
ФРАКТАЛЬНАЯ РАЗМЕРНОСТЬ
ПРОЧНОСТЬ
СТРУКТУРА
ДЕФЕКТ
FRACTAL
MODEL
CONCRETE
FRACTURE
FRACTAL DIMENSION
STRENGTH
STRUCTURE
DEFECT

description: В предлагаемой статье рассматривается возможность описания масштабного эффекта на основе фрактальной геометрии Б. Мандельброта. Основываясь на гипотезе о масштабной инвариантности структуры разработана фрактальная модель, согласно которой прочность материала зависит от размера дефектов, масштабного фактора и фрактальной размерности. Предложен новый способ определения фрактальной размерности, как характеристики однородности, внутреннего порядка структуры материала.This article discusses the possibility of describing a large-scale effect based on B. Mandelbrot’s fractal geometry. Based on the hypothesis of scale invariance of the structure, a fractal model has been developed, according to which the strength of the material depends on the size of the defects, scale factor, and fractal dimension. A new method is proposed for determining the fractal dimension as a characteristic of homogeneity, the internal order of the structure of the material. The data of analysis of experimental data published in the scientific literature, which confirm the adequacy of the model.