bluuebunny/crossref_metadata_2025_split huggingface dataset:
MONITORING THERMAL POLLUTION SOURCES IN VORONEZH (RUSSIA) USING REMOTE SENSING DATA
Authors: Сарычев Дмитрий Владимирович , Попова Ирина Владимировна , Куролап Семен Александрович 
Published: December 2021

Рассмотрены вопросы мониторинга теплового загрязнения окружающей среды в городах. Представлена методика отбора спектрозональных спутниковых снимков, их обработки и интерпретации полученных результатов. Для оценки городского острова тепла были использованы снимки с космического аппарата Landsat 8 TIRS. На их основе построены карты пространственной структуры острова тепла города Воронежа за летний и зимний периоды. Определены тепловые аномалии и выявлено 11 основных техногенных источников теплового загрязнения в г. Воронеже, установлена их принадлежность к промышленным зонам предприятий, а также к очистным гидротехническим сооружениям. Поверхностные температуры данных источников в среднем были выше фоновых температур приблизительно на 6° зимой и на 15,5° С летом. Синхронно со спутниковой съемкой были проведены наземные контрольные тепловизионные измерения температур основных подстилающих поверхностей в г. Воронеже. Полученные данные показали высокую сходимость космических и наземных измерений, на основании чего сделан вывод о надежности используемых данных дистанционного зондирования Земли в мониторинговых наблюдениях теплового загрязнения городской среды. Результаты работ могут найти применение в городском планировании и медицинской экологии.
The study deals with the remote sensing and monitoring of urban heat islands. We present a methodology of multispectral satellite imagery selection and processing. The study bases on the freely available Landsat 8 TIRS data. We used multitemporal thermal band combinations to make maps of the urban heat island of Voronezh (Russia) during summer and winter periods. That let us identify 11 artificial sources of heat in Voronezh. All of them turned out to be allocated within industrial zones of plants and water treatment facilities. Land surface temperatures (LST) of these sources were approximately 6° and 15.5° C above the background temperatures in winter and summer, respectively. To prove the remotely sensed temperatures we conducted ground control measurements of LST of different surface types at the satellite revisit moments. Our results showed a significant correlation between the satellite and ground-based measurements, so the maps we produced in this study should be robust. They are of use in urban planning and medical ecology studies.
Analysis of Nonlinear Static-Dynamic Deformation of Reinforced Concrete Frames in out-of-Limit States
Authors: Федорова Н. В. , Ву Нгок Туен , Медянкин М. Д. 
Published: December 2021

Постановка задачи. Приводятся расчетная модель, алгоритм расчетного анализа и результаты расчета нелинейного статико-динамического деформирования железобетонных рам в запредельных состояниях, вызванных внезапным удалением одной из несущих конструкций. Результаты. Для создания численной модели режима статико-динамического нагружения конструктивной системы использован программный комплекс LS-DYNA с применением детальной 3Д-модели, реализующей явный метод конечных элементов. При проведении расчетного анализа были приняты физико-механические характеристики деформирования материалов в трех вариантах: полученные по опытным данным Г. А. Гениева, по опытным данным Н. В. Федоровой, М. Д. Медянкина при статико-динамическом одноосном режиме испытаний ограниченного числа стандартных образцов призм и по СП 385.1325800.2018. Выводы. Численным анализом статико-динамического деформирования железобетонной рамно-стержневой системы каркаса многоэтажного здания установлено, что дифференцированный учет количественного значения модуля вязкости бетона и соответственно времени и уровня статико-динамического догружения конструкции позволяет более строго определять критерии особого предельного состояния элементов железобетонных конструктивных систем зданий и сооружений.
Statement of the problem. The article presents a computational model, an algorithm for computational analysis and the results of calculating the nonlinear static-dynamic deformation of reinforced concrete frames in out-of-limit states caused by the sudden removal of one of the supporting structures. Results. To design a numerical model of the static-dynamic loading mode of a structural system, the LS-DYNA software package was used that makes use of a detailed 3D model implementing an explicit finite element method. During the computational analysis, the physical and mechanical characteristics of the deformation of materials were taken in three variants: those obtained based on the experimental data by G. A. Geniev, the experimental data by N. V. Fedorova and M. D. Medyankin under the static-dynamic uniaxial testing mode of a limited number of standard samples of prisms and according to the Russian standards SP (СП) 385.1325800.2018. Conclusions. Numerical analysis of the static-dynamic deformation of the reinforced concrete frame-rod system of a multi-storey building has established that the differentiated accounting of the quantitative value of the concrete viscosity modulus and, accordingly, the time and level of static-dynamic loading of the structure allows one to identify the criteria for the special limit state of the elements of reinforced concrete structural systems of buildings and structures in a more rigid manner.
Influence of the Self-Heating Temperature on the Cyclic Durability of Composite Materials
Authors: Бондарев Б. А. , Комаров П. В. , Ерофеев А. В. , Баязов В. А. 
Published: December 2021

Постановка задачи. Для определения выносливости полимерных композиционных материалов используют различные методы ускоренных испытаний. Одним из таких методов является температурный, который имеет свои ограничения применения. Это подразумевает необходимость установления возможности его применения для эпоксидных полимерных материалов. Результаты. Предложена формула для определения величины усталостной долговечности эпоксидного композиционного материала, опытным путем установлена достоверность величин, рассчитываемых по данной формуле. Доказано, что интенсивность роста температуры зависит от скорости загружения. Выводы. Достоверность расчетов по предложенной формуле для расчета показателей усталостной долговечности подтверждена сравнением результатов с опытными данными, значения достаточно близко коррелируют, что позволяет применять эту формулу при расчете выносливости для образцов из эпоксидного композита.
Statement of the problem. Various methods of accelerated testing are used to determine the endurance of polymer composite materials. One of these methods is the temperature method which has its own limitations of application. Thus the possibility of its application for epoxy polymer materials should be established. Results. The article proposes a formula for identifying the value of the fatigue life of an epoxy composite material. The reliability of the values calculated using this formula is experimentally established. It is proved that the intensity of the temperature increase depends on the loading speed. Conclusions. The reliability of the calculations according to the proposed formula for calculating the fatigue life indicators is confirmed by comparing the results with experimental data, the values are quite closely correlated, which allows us to use this formula when calculating the endurance for samples made of epoxy composite.
Quantitative Assessment of the Kinetics of Damage Accumulation in the Polymer Matrix Structure Under Full-Scale Climatic Factors and Tensile Loads
Authors: Селяев В. П. , Низин Д. Р. , Канаева Н. С. 
Published: December 2021

Постановка задачи. Изучено изменение упруго-прочностных показателей и кинетики накопления повреждений в эпоксидных полимерах под действием растягивающих нагрузок в контрольном состоянии и после натурного климатического воздействия в течение одного календарного года. Расчет кинетики накопления повреждений осуществлялся на основе авторской методики, основанной на использовании методов фрактального анализа кривых деформирования образцов полимерных материалов при растяжении. Результаты. Предложен удельный показатель θ, позволяющий количественно оценивать суммарное число повреждений на единицу прочности, накопление которого приводит к разрушению полимеров. Получены аппроксимирующие зависимости, описывающие взаимосвязь между удельным показателем θ и пределом прочности эпоксидных полимеров при растяжении. Выводы. Установлено, что наибольшей стабильностью свойств под действием натурного климатического воздействия обладает полимер на основе эпоксидной смолы «Этал-247».
Statement of the problem. In the current study we look at the change in the elastic-strength performance and kinetics of damage accumulation in epoxy polymers under tensile loads in the control state and after full-scale climatic exposure during one calendar year were studied. Damage accumulation kinetics was calculated based on the author's method using methods of fractal analysis of deformation curves for polymer materials samples under tension. Results. We proposed specific index θ to quantify the total number of damages per unit of strength where its accumulation leads to the destruction of polymers. The dependences have been obtained that describe the relationship between specific index θ and tensile strength of epoxy polymers. Consclusion. The study has shown that the Etal-247 epoxy resin-based polymer cured with Etal-1440 amine hardener has the most stable properties under the full-scale climatic exposure.
Impact of Urban Planning Activities on the Environmental Status of Human Settlements and Finding Ways to Improve It by Means of Urban Development Measures
Authors: Климова А. В. 
Published: December 2021

Постановка задачи. Исследуется влияние мероприятий по градостроительству, планировке населенных мест на экологическое состояние поселений, а также пути улучшения экологии мерами градостроительства. Результаты. Методом экстраполяции исследована динамика сельского и городского населения, осуществлен прогноз на перспективу. Определено гигиеническое значение планировки территории. Рассмотрены истоки возникновения и причины развития наиболее общих экологических проблем урбанизированной территории. Раскрыты такие наиболее актуальные проблемы крупных городов, как несанкционированные свалки, точечная застройка, высокая плотность населения, сокращение площади зеленых насаждений и др.; предложены мероприятия по их решению (снижению негативного влияния) на законодательном и исполнительном уровнях. Выводы. Результаты исследования позволяют сделать вывод о существенном положительном влиянии своевременных градостроительных мер на экологическую ситуацию в городах.
Statement of the problem. The problem of identifying the impact of urban planning activities on the environmental status of human settlements and finding ways to improve it by urban development measures is considered. Results. The dynamics of rural and urban populations has been investigated by means of the extrapolation method and the projections have been made. The hygienic requirements to the territorial planning have been determined. Causes and origins of the most common environmental problems of urban areas have been examined. The most urgent problems of cities, such as illegal dumps, infill development, high population density, reduction of urban green spaces, etc. were revealed. The activities for reducing the negative impact were proposed at both the legislative as well as executive levels. Conclusions. The findings of the study suggest that there is a significant positive impact of timely well-grounded urban planning measures on the ecological situation in cities.
Annual plants in the floral design of the exhibition areas of the National Dendrological Park "Sofiyivka" of NAS of Ukraine
Authors: Kovalchuk Tetiana , Didenko Inna 
Published: December 2021

Aim. The National Dendrological Park "Sofiyivka" of the National Academy of Sciences of Ukraine is an example of the tandem of nature and human creativity, where a significant place in the formation of landscapes belongs to floral design. It is one of the most colorful architectural and artistic elements of landscaping. The aim is to describe and to define the main features of flower beds of the Dendrological Park “Sofiyivka”, and to describe the range of annual plants used in flower arrangements. Methods. The study was conducted in the dendrological park during 2019-2021. Examples of flower design have been described according to the classification of flower beds by V. V. Pushkar. Latin names of plant species were given according to “The Plant List, 2013”. Results. The analysis of flower design in the dendrological park “Sofiyivka” using annual plants was carried out. The features of flower beds are clarified by: shape and location, duration of their existence, flowering period, location of plants in the vertical plane and the type of plant combination. Conclusions. Five exhibition areas in “Sofiyivka” park have been defined. They are decorated with 12 flower compositions. This floral design belongs to the landscape and regular type of planning.
Orthographic relatedness and transposed-word effects in the grammatical decision task
Authors: Mirault Jonathan , Leflaëc Charlotte , Grainger Jonathan 
Published: December 2021

AbstractIn two on-line experiments (N = 386) we asked participants to make speeded grammatical decisions to a mixture of syntactically correct sentences and ungrammatical sequences of words. In Experiment 1, the ungrammatical sequences were formed by transposing two inner words in a correct sentence (e.g., the brave daunt the wind / the daunt brave the wind), and we manipulated the orthographic relatedness of the two transposed words (e.g., the brave brace the wind / the brace brave the wind). We found inhibitory effects of orthographic relatedness in decisions to both the correct sentences and the ungrammatical transposed-word sequences. In Experiment 2, we further investigated the impact of orthographic relatedness on transposed-word effects by including control ungrammatical sequences that were matched to the transposed-word sequences. We replicated the inhibitory effects of orthographic relatedness on both grammatical and ungrammatical decisions and found that transposed-word effects were not influenced by this factor. We conclude that orthographic relatedness across adjacent words impacts on processes involved in parallel word identification for sentence comprehension, but not on the association of word identities to positions in a sequence.
Analisis Diagnostik Kelemahan Mahasiswa Teknik Menguasai Materi Fungsi Trasenden Menggunakan Program R
Authors: Munaji Munaji , Suyitno Suyitno 
Published: December 2021

Tujuan dari penelitian ini adalah untuk mengetahui kelemahan-kelemahan mahasiswa teknik dalam menguasai materi fungsi trasenden. Rancangan penelitian ini merupakan penelitian deskriptif kuantitatif. Instrumen penelitian berupa tes bentuk obyektif dengan empat pilihan jawaban. Teknik pengambilan sampel berupa teknik purposive sampling dengan jumlah sampel sebanyak 34 mahasiswa teknik elektro semester 2. Hasil analisis diagnostik menggunakan GDINA model program R menunjukkan bahwa kelemahan-kelemahan mahasiswa dalam menguasai materi fungsi tersenden yang paling dominan pada sub bab: (1) fungsi logaritma asli yaitu, mahasiswa belum menguasai penggunaan konsep logaritma asli dalam menyelesaikan masalah; (2) invers fungsi dan turunannya yaitu, mahasiswa belum menguasai bagaimana cara menentukan turunan dari invers fungsi dengan benar; (3) fungsi eksponen umum yaitu, mahasiswa belum menguasai bagaimana cara menentukan turunan dari fungsi eksponen asli dengan metode pendiferensialan implisit; (4) fungsi logaritma dan eksponen umum yaitu, mahasiswa belum menguasai bagaimana cara menggunakan sisfat-sifat fungsi eksponen umum dengan benar. Sub bab fungsi logaritma dan eksponen umum merupakan sub bab yang paling dominan belum dikuasai oleh mahasiswa dibandingkan dengan tiga sub bab lainnya.
La caducidad en las leyes provinciales de adhesión a la ley 27.348
Authors: Salas Ana María 
Published: December 2021

La ley 27.348 invitó a las provincias y a la Ciudad Autónoma de Buenos Aires a adherir a las disposiciones contenida en el Título I de la ley (art. 4) . Esa adhesión importó la obligatoriedad de la intervención de las comisiones médicas jurisdiccionales con carácter previo y excluyente. Por ello los trabajadores deben necesariamente solicitar la definición de esos organismos del carácter profesional de su enfermedad o contingencia, la determinación de su incapacidad y las correspondientes prestaciones dinerarias previstas en la Ley de Riesgos del Trabajo. Algunas provincias al dictar las leyes de adhesión establecieron un plazo de caducidad para acceder a la instancia judicial. El análisis de esa caducidad es lo que se propone realizar en el presente trabajo con el objeto de verificar la compatibilidad del instituto con la Constitución Nacional y tratados internacionales que integran el Bloque de Constitucionalidad Federal (art. 75, inc. 22 de la CN).
Sumario
I.- Nociones preliminares. II.- La caducidad en el Código Civil y Comercial. III.- La caducidad en las leyes provinciales de adhesión a la ley 27.348. IV.- Argumentos que ponen en crisis los plazos de caducidad de las legislaciones provinciales. V.- La conclusión final que genera el tema.
Learning Management System (LMS) Menggunakan Google Classroom Bagi Guru SDK Mardiwiyata 2 Malang
Authors: Fransiskus Xaverius Agung Perkasa Jampur  , Vinno Christmantara  
Published: December 2021

SDK Mardiwiyata II Malang yang merupakan salah satu sekolah swasta dalam naungan Yayasan Mardiwiyata memiliki 12 rombongan belajar yang terbagi ke dalam 12 kelas, dengan jumlah siswa sebanyak 381 anak, dimana pada masa pandemi ini, pihak sekolah terpaksa melakukan pembelajaran secara daring kepada seluruh siswa tehitung sejak bulan april 2020. Pada pembelajaran bagi pendidikan sekolah dasar yang gagap akan teknologi tersebut pihak sekolah menggunakan platform pembelajaran daring yang beragam seperti edmodo, zoom, google classroom, bahkan melalui grup aplikasi percakapan WhatsApp, yang mana memiliki kesulitan dalam penggunaan platform, juga perbedaan kemampuan guru dalam penguasaan teknologi informasi, dan kebinguan wali murid yang sama-sama kaget menimbulkan permasalahan, maka dari itu kegiatan pengabdian ini dilaksanakan dalam rangka menyeragamkan penggunaan platform sebagai learning management system (LMS) bagi sekolah mitra dan sekaligus meningkatkan kemampuan pemahaman dan penguasaan Guru terhadap fitur-fitur penting pada Google Classroom. Metode yang digunakan yaitu penyamaan persepsi pengabdi dan mitra, pembuatan modul pelatihan, dan pelaksanaan pelatihan serta pendampingan guru.
Kata kunci: Learning Management System (LMS), Pendidikan Sekolah Dasar, Google Classroom
Thermal Phase Curves of XO-3b: An Eccentric Hot Jupiter at the Deuterium Burning Limit
Authors: Dang Lisa , Bell Taylor J. , Cowan Nicolas B. , Thorngren Daniel , Kataria Tiffany , Knutson Heather A. , Lewis Nikole K. , Stassun Keivan G. , Fortney Jonathan J. , Agol Eric , Laughlin Gregory P. , Burrows Adam , Collins Karen A. , Deming Drake , Jovmir Diana , Langton Jonathan , Rastegar Sara , Showman Adam P. 
Published: December 2021

Abstract
We report Spitzer full-orbit phase observations of the eccentric hot Jupiter XO-3b at 3.6 and 4.5 μm. Our new eclipse depth measurements of 1770 ± 180 ppm at 3.6 μm and 1610 ± 70 ppm at 4.5 μm show no evidence of the previously reported dayside temperature inversion. We also empirically derive the mass and radius of XO-3b and its host star using Gaia DR3's parallax measurement and find a planetary mass M

p
= 11.79 ± 0.98 M
Jup and radius R

p
= 1.295 ± 0.066 R
Jup. We compare our Spitzer observations with multiple atmospheric models to constrain the radiative and advective properties of XO-3b. While the decorrelated 4.5 μm observations are pristine, the 3.6 μm phase curve remains polluted with detector systematics due to larger amplitude intrapixel sensitivity variations in this channel. We focus our analysis on the more reliable 4.5 μm phase curve and fit an energy balance model with solid body rotation to estimate the zonal wind speed and the pressure of the bottom of the mixed layer. Our energy balance model fit suggests an eastward equatorial wind speed of

3.13

−
0.83

+
0.26

km s−1, an atmospheric mixed layer down to

2.40

−
0.16

+
0.92

bars, and a Bond albedo of

0.106

−
0.106

+
0.008

. We assume that the wind speed and mixed layer depth are constant throughout the orbit. We compare our observations with 1D planet-averaged model predictions at apoapse and periapse and 3D general circulation model predictions for XO-3b. We also investigate the inflated radius of XO-3b and find that it would require an unusually large amount of internal heating to explain the observed planetary radius.
Apparent Motion of the Circumstellar Envelope of CQ Tau in Scattered Light
Authors: Safonov Boris S. , Strakhov Ivan A. , Goliguzova Maria V. , Voziakova Olga V. 
Published: December 2021

Abstract
The study of spiral structures in protoplanetary disks is of great importance for understanding the processes in the disks, including planet formation. Bright spiral arms were detected in the disk of young star CQ Tau by Uyama et al. in the H and L bands. The spiral arms are located inside the gap in millimeter-sized dust, discovered earlier using Atacama Large Millimeter/submillimeter Array observations. To explain the gap, Ubeira Gabellini et al. proposed the existence of a planet with the semimajor axis of 20 au. We obtained multi-epoch observations of a spiral feature in the circumstellar envelope of CQ Tau in the I

c
band using a novel technique of differential speckle polarimetry. The observations covering a period from 2015 to 2021 allow us to estimate the pattern speed of the spiral: −0.°2 ± 1.°1 yr−1 (68% credible interval; positive value indicates counterclockwise rotation), assuming a face-on orientation of the disk. This speed is significantly smaller than expected for a companion-induced spiral, if the perturbing body has a semimajor axis of 20 au. We emphasize that the morphology of the spiral structure is likely to be strongly affected by shadows of a misaligned inner disk detected by Eisner et al.
Perpendicular Diffusion of Energetic Particles: A Complete Analytical Theory
Authors: Shalchi A. 
Published: December 2021

Abstract
Over the past two decades scientists have significantly improved our understanding of the transport of energetic particles across a mean magnetic field. Due to test-particle simulations, as well as powerful nonlinear analytical tools, our understanding of this type of transport is almost complete. However, previously developed nonlinear analytical theories do not always agree perfectly with simulations. Therefore, a correction factor a
2 was incorporated into such theories with the aim to balance out inaccuracies. In this paper a new analytical theory for perpendicular transport is presented. This theory contains the previously developed unified nonlinear transport theory, the most advanced theory to date, in the limit of small Kubo number turbulence. New results have been obtained for two-dimensional turbulence. In this case, the new theory describes perpendicular diffusion as a process that is sub-diffusive while particles follow magnetic field lines. Diffusion is restored as soon as the turbulence transverse complexity becomes important. For long parallel mean-free paths, one finds that the perpendicular diffusion coefficient is a reduced field line random walk limit. For short parallel mean-free paths, on the other hand, one gets a hybrid diffusion coefficient that is a mixture of collisionless Rechester & Rosenbluth and fluid limits. Overall, the new analytical theory developed in the current paper is in agreement with heuristic arguments. Furthermore, the new theory agrees almost perfectly with previously performed test-particle simulations without the need of the aforementioned correction factor a
2 or any other free parameter.