bluuebunny/crossref_metadata_2025_split huggingface dataset:
Internet portal for solving scientific and engineering problems
Authors: Сотников Игорь Юрьевич , Завозкин Сергей Юрьевич , Гудов Александр Михайлович 
Published: October 2021

Приведены описание, архитектура и сервисы инженерного вычислительного портала, представляющего собой комплексное решение для организации доступа к высокопроизводительным вычислительным ресурсам, кооперации специалистов из разных областей для решения сложных вычислительных задач, проведения вычислительных экспериментов и обучения параллельным технологиям.
Goal. The project aimed at designing web-oriented high technology software and hardware complex (engineering and computational portal) to solve scientific and experimental problems which are carried out at Kemerovo State University. The project is considered to be unique, because three options, namely solution of engineering problems, performance of computational experiments based on high performance resources and educational services dedicated to theory and technology of high performance computations are combined. Methods. The architecture of the engineering and computational portal was designed with the help of a service-oriented method. This method is used to create distributed systems that have services for other systems or other services. The service-oriented method simplifies integration of new components to improve the portal’s options. The applied technology of web services is based on the following standards: WSDL - web service description standard, SOAP - web service interaction message format and BPEL - business processes description standard (orchestration), as well as portlet technology. The following tasks have already been accomplished: ∙ the web portal has been created on the basis of Liferay web platform; ∙ the service for user files storage management has been implemented; ∙ the service to solve flooded mine problem has been implemented; ∙ “Onlide” system has been developed in order to create software parallel user-code and start it on the basis of high performance resources; ∙ both components to register computational resources and to allow access to them have been implemented; ∙ “Virtual Laboratory Practicum” has been integrated as an educational element. Summary. The described engineering and computational portal is heavily employed at Kemerovo State University in order to perform computational experiments based on the high performance resources and to teach theory and technology of high performance computations. Future plans are as follows: implementation of the component to interact with the portal experts, “Master” component implementation, that is considered to be a portal guide, implementation of computational resources accounting components, implementation of the high-performance leased components, expansion of computational services list, implementation of the service to solve the problem of gas-dispersion gas/particle mixture combustion that applies Phoenics CFD technology.
Application of the optimal network flow method to the problem of locomotive selection for freight trains on the Eastern Polygon
Authors: Шабунин Александр Борисович , Такмазьян Андрей Куркенович 
Published: October 2021

Моделируется подбор тяговых ресурсов (локомотивов - в данном случае) для провоза грузовых поездов. В качестве входных данных рассматриваются маршрут поезда, время готовности поезда к отправлению, средняя скорость и вес поезда. Имеется множество локомотивов, обладающих грузоподъемностью и областью разрешенного действия. Цель - оптимально подобрать ресурс для каждого участка маршрута поезда. Решение ищется методом потока ресурсов минимальной суммарной стоимости через специально сконструированную сеть. Сеть построена на основе взвешенного орграфа из ребер графика поездов на линейных участках и ребер альтернативы, в процессе прохода по которым осуществляется “смена деятельности” локомотива (например, отцепление от одного поезда и подцепка к другому). Полученное решение обладает свойством глобальной оптимальности по времени.
The selection of traction resources (locomotives) for the transport of freight trains is modelled. The input data are the train route, the readiness time of the train for departure, the average speed and weight of the train. In addition, there are many locomotives with a carrying capacity and an area of permitted action. The research objective is to optimally select a resource for each segment of the train route. The solution is sought by the resource flow method of the minimum total cost through a specially designed network. The network includes edges created from train schedule segments whose filling means locomotive assignment to train at the segment, and special alternative edges, passing through which a locomotive alternates its assignment. The algorithm for finding the optimal solution is the method of pushing through the pre-flow proposed by A. Goldberg and R. Tarjan. This is one of the fastest algorithms converging to a global optimum. Two test cases were investigated: a trivial one, out of six trains and three locomotives, and a more complicated one, which is a model example the size of 10% of the full scale model and consists of 150 trains. Full scale calculations provide planning of the freight transportation on the Eastern Operational domain of the Russian Railways. The model includes 1800 locomotives and about 3000 trains on the time horizon of 48 hours. Solution is found in less than 5 minutes of processor time for a PC powered by Intel(R) Pentium(R) G2010 2.80 GHz processor.
Analytical theory and numerical modelling of nonlinear wave packages (breathers) in the ocean stratified by density and currents
Authors: Талипова Татьяна Георгиевна , Диденкулова Екатерина Геннадьевна , Пелиновский Ефим Наумович 
Published: October 2021

Развита теория нелинейных осциллирующих волновых пакетов в океане, стратифицированном по плотности и течению. Теория основана на уравнении Гарднера, которое полностью интегрируется современными методами теории нелинейных волн. Определены фазовые соотношения в бризерах. В качестве примера рассмотрен расчет динамики пакета внутренних волн с образованием бризеров для условий, приближенных к условиям Балтийского моря в районе Готландской котловины.
The paper addresses the important problem of modelling the transformation of breathers of internal waves in a horizontally heterogeneous medium stratified by density and currents. At present, there are sufficiently detailed hydrological atlases that allow performing calculations of the kinematic characteristics of internal waves for a given density field in an ocean. The data on currents is incomplete, and still there is no necessary accuracy. For solitons of small amplitude, “ignorance” of the flow field leads only to a quantitative difference in the parameters, however for breathers the situation can change qualitatively, and if the sign of cubic nonlinearity changes, the breather simply ceases to exist. Currents lead to differences in the spatial and temporal characteristics of a breather, which is very important when comparing measurement data obtained by different methods (from a buoy or from a moving carrier). In this case, the effects of blocking waves on the opposite currents, which vary horizontally, are possible. All this points require a thorough study of the behavior of breathers on ocean currents. The theory of nonlinear oscillating wave packets in the ocean is developed. The theory is based on the Gardner equation, which is fully integrated by modern methods of the theory of nonlinear waves. Phase relations in breathers are determined. As an example, the calculation of the dynamics of the package of internal waves with the formation of breathers for the conditions close to the conditions of the Baltic Sea in the Gotland Basin is considered.
Thermal processes during acoustic impact on a liquid-saturated porous
Authors: Хусаинова Г.Я. 
Published: October 2021

Выполнено исследование процесса нагрева трехзонной пористой среды, насыщенной жидкостью, с помощью акустического поля. С учетом того, что основным механизмом, переводящим энергию акустического поля в тепло, является сила вязкого трения между насыщающей жидкостью и скелетом пористой среды, построена функция объемного источника тепла для процесса нагрева пористой среды акустическим воздействием. Исследована зависимость температурного поля от параметров пористой среды и акустического поля.
Research of the impact of acoustic field on the near-well zone of rocks is considered to be attractive for using in different technological processes, in particular, during gas-oil well exploitation. Thermal effect under acoustic impact on three-zone porous medium is analyzed in this paper.

At the boundary of the porous medium a source of harmonic pressure waves is imposed. Affected by a source of pressure waves liquid will vibrate relatively to the skeleton of the porous medium.

The wave and the thermal problem are considered. The linearized equations of continuity, momentum and state, as well as boundary conditions are written for the wave problem. For the boundary between the first and second zones we write the conditions of absence of an abrupt change in the pressure and the velocity of motion of the liquid, and the right-hand boundary of the second zone is considered to be highly permeable.

The solution of the wave problem is sought in the form of a traveling wave. Solutions are obtained for the pressure and velocity of fluid flow the formula for calculating the average heat influx per unit volume in a unit time.

For the temperature problem we write the equation of the influx of heat to the porous medium saturated with liquid, with allowance for the heat source due to the viscous attenuation of the acoustic field.

The temperature problem is solved numerically by the sweep method. The dependence of the temperature field from the porous medium parameters and the acoustic field has been analyzed. Graphs of the dependence of the temperature of the porous medium from the coordinates are presented.

The obtained results show that by selecting the frequency and amplitude of the acoustic field, it is possible to achieve a pronounced effect on the clogged areas of the bottomhole formation zone in order to heat this zone and, thereby, melting and cleaning from paraffin deposits.
Stylistic Features of Works for Choir A Cappella by Dmitry Smirnov on the Example of Choir Concerto “Insomnia”
Authors: Макарова А.В. 
Published: October 2021

В творчестве современного петербургского композитора Дмитрия Валентиновича Смирнова (р. 1952) хоровые сочинения занимают особое место. В жанровом отношении именно концерт для хора представляет собой своеобразное «зеркало» творческого поиска композитора. Начиная с ранних сочинений начала 1980-х годов («Приявший мир», «Рождение крыла», Концерт для хора на стихи Н. Некрасова) и вплоть до созданного в 2006 году цикла «Набоковские песнопения» многочастные композиции хоровых концертов играли ключевую роль в процессе становления и постепенного усложнения хорового письма автора. Хоровой концерт «Бессонница» (1986) открывает новый этап в творчестве композитора. В этот период происходит окончательное формирование устойчивой системы стилистических особенностей музыкального языка; композитор обращается к созданию сложных многочастных композиций для хора a cappella. К данному периоду можно отнести такие сочинения, как Концерт для хора на стихи И. Анненского «Кипарисовый ларец», Концерт для хора на стихи О. Мандельштама «Я рожден в девяносто четвертом, я рожден в девяносто втором…» и «Молитвословия» из Литургии Св. Иоанна Златоуста. Сочинения указанного периода отличает многоуровневая смысловая полифоничность, которая находит свое отражение в усложнении драматургии цикла и значительном расширении комплекса музыкально-выразительных средств композиторского письма. Таким образом, происходит окончательное формирование основных стилистических особенностей хорового языка Дмитрия Смирнова.
Choral works occupy a special place in the work of the contemporary Petersburg composer Dmitry V. Smirnov (born 1952). In terms of genre, it is the concert for choir that is a kind of “mirror” of the composer’s creative search. Beginning with the early compositions of the early 1980s (“The One Who Accepted the World”, “Birth of Wing”, Concerto for Choir on poems by Nikolay Nekrasov) and up to the cycle “Nabokov’s chants”, multi-movement compositions of choral concerts played a key role in the formation and gradual complication of the author's choral writing. The choir concerto “Insomnia” (1986) opens a new stage in the composer’s work. This is a period of final formation of a stable system of stylistic features of the musical language; the composer turns to creation of complex multi-movement compositions for a cappella choir. This period includes such compositions as Concerto for Choir on the poems of Innokentiy Annensky “Cypress Casket”, a Concerto for Choir on the verses of Osip Mandelstam “I was born in the ninety-fourth, I was born in the ninety-second...” (1989) and “Prayers” from the Liturgy of St. John Chrysostom (1992). The works of this period are distinguished by multilevel semantic polyphony, which is reflected in complication of the cycle's drama and a significant expansion of the complex of musical and expressive means of composer writing. Thus, the final formation of the main stylistic features of the choral language of Dmitry Smirnov takes place.
The XVIII Bach Readings in St. Petersburg
Authors: Ковнацкая Л.Г. 
Published: October 2021

В первой, вступительной части публикуемой рецензии на XVIII Баховские чтения, прошедшие в Санкт-Петербургской консерватории в марте 2021 года, рецензент рассказывает про свой баховедческий опыт, отчасти дающий автору право суждения о столь специальном событии. Во второй, основной части рецензии рассматривается разработанный в представленных на Чтениях докладах свод научных тем, ракурсов и методов исследования в свете научных интересов и вклада ученых в эту область музыкознания. Современное баховедение в Чтениях предстает как специфическая отрасль музыкальной науки со своими актуальными проблемами и как единое открытое духовное пространство, взаимодействующее с проблемами времени и окружающей жизни в ее динамике.
In the first, introductory part of the published review of the XVIII Bach Readings, which took place at the St. Petersburg Conservatory in March 2021, the reviewer tells about her individual Bach-studies experience. This experience reflects the Bachian life in Leningrad in the second half of the 20th century. In part, according to the author, it gives her the right to estimate such a special event. In the second, main part of the review, the author provides a set of topics, angles and research methods in the light of scientific interests and contribution of scholars to this area of musicology. In the Readings, modern Bachology appears as a specific branch of musicology with its current problems and as an open scientific world interacting with the problems of time and the surrounding life in its dynamics.
Сurrent state of artificial reproduction of chum salmon in Primorye Region
Authors: Kurgansky G. N. 
Published: October 2021

Results of 4 salmon hatcheries operation in Primorye Region are overviewed. Dynamics of chum salmon producers return to the rivers is presented for 4 last years. Recent tendency of shifting the peak of return from middle October to late September — early October is noted both for the rivers flowing into Peter the Great Bay (Barabashevka) and for the rivers of central Primorye (Verbnaya and Milogradovka). High percentage of producers aged 2+ was observed in the hatchery rivers in some years (32.9 % in the Barabashevka in 2019, 31.0 % in the Verbnaya in 2020, 37.8 % in the Bezymyanny in 2020). Interannual fluctuations in the number of producers return are possibly caused by malfunctions of hatcheries. A problem of water supply to the hatcheries is considered. Expediency of temperature control at hatcheries is shown. Data on release of chum salmon juveniles in the last decade are presented for each hatchery: the number of juveniles released, the average weight of juveniles, and the timing of release. Total release to the Barabashevka River was 119.29 . 106 juveniles, to the Ryazanovka — 114.24 . 106 juveniles, to the Poyma — 49.43 . 106 juveniles, to the Narva — 6.02 . 106 juveniles, to the Brusya — 3.11 . 106 juveniles, to the Verbnaya — 69.66 . 106 juveniles, to the Milogradovka — 1.00 . 106 juveniles, to the Lidovka — 1.71 . 106 juveniles, to the Bezymyanny — 69.45 . 106 juveniles, and 2.00 . 106 juveniles each to the Kievka and Margaritovka Rivers.
Compositionally-Restricted Attention-Based Network for Materials Property Prediction
Authors: Wang Anthony , Kauwe Steven , Murdock Ryan , Sparks Taylor 
Published: October 2021

In this paper, we demonstrate a novel application of the Transformer self-attention mechanism. Our network, the Compositionally-Restricted Attention-Based network, referred to as CrabNet, explores the area of structure-agnostic materials property predictions when only a chemical formula is provided.Our results show that CrabNet's performance matches or exceeds current best practice methods on nearly all of 28 total benchmark datasets. We also demonstrate how CrabNet's architecture lends itself towards model interpretability by showing different visualization approaches that are made possible by its design.We feel confident that CrabNet, and its attention-based framework, will be of keen interest to future materials informatics researchers. For trained model weights, please see: http://doi.org/10.5281/zenodo.4633866
РОЛЬ ФИНАНСОВЫХ РЕСУРСОВ В ОБЕСПЕЧЕНИИ ЭКОНОМИЧЕСКОЙ безопасности коммерческой деятельности хозяйствующих субъектов национальной экономики Российской Федерации
Authors: Мерзлякова Алена Сергеевна , Назмиева Лилия Фуатовна , Зяблицкая Наталья Викторовна 
Published: October 2021

Цель работы. Научная статья посвящена исследовательскому анализу теоретической и практической роли финансовых ресурсов в рамках обеспечения экономической безопасности коммерческой деятельности хозяйствующих субъектов национальной экономики Российской Федерации (РФ). Метод или методология проведения работы. Методологической базой работы выступают общенаучные методы познания экономических явлений, позволившие рассмотреть актуальные вопросы управления финансовыми ресурсами. Исследование базируется на сочетании нормативного и позитивного анализа, принципах единства исторического и логического, а также аналитического подхода к исследованию экономических явлений, отражающих противоречивый характер общественных процессов. Результаты. В рамках статьи рассмотрены теоретические аспекты понятия «финансовые ресурсы». Описана роль управления стоимостью финансовых ресурсов. Выделены показатели и процессы, которые формируют стоимость финансовых ресурсов предприятия в целях обеспечения его коммерческой деятельности. Перечислены критерии, которые сигнализируют о финансовой устойчивости предприятия. Проанализированы внутренние и внешние факторы, которые влияют на процедуру обеспечения российских организаций финансовыми ресурсами. Область применения результатов. Значение результатов работы заключается в развитии теоретических положений и методического обеспечения системы управления финансовыми ресурсами на базе российских предприятий. Выводы. В заключение научной статьи автором установлено, что финансовые ресурсы влияют на эффективность бизнеса и его оценку. От стоимости финансовых ресурсов зависят размеры расходов и доходов предприятия. Стоимость финансовых ресурсов – это отражение концепции стоимостного подхода, поскольку от первых зависит то, какую оценку стоимость бизнеса компании получит со стороны потенциальных инвесторов и акционеров. При этом были подытожены ключевые факторы внутренней и внешней среды, влияющие на обеспечение предприятий необходимыми финансовыми ресурсами.
EVALUATION OF RISK FACTORS OF PATIENTS WITH CHRONIC LOW BACK PAIN APPLYING TO THE PHYSICAL THERAPY AND REHABILITATION OUTPATIENT CLINIC
Authors: Barut Ayşe Berhoğlu 
Published: October 2021

Objectives: To investigate the risk factors affecting these pains in patients with low back pain.
Methods: In this retrospective observational study, the patients were asked about their age, gender, occupation, marital status, educational status, economic status and smoking status. The duration of low back pain was measured in months and the severity was 0-no pain and 10-unbearable pain on a 10 cm line with the Visual Analogue Scale (VAS) and the data were recorded.
Results: Of 224 patients, 144 (64.3%) were female and 80 (35.7%) were male. The most common causes of chronic low back pain were lumbar spondylosis (120 patients, 53.6%) and discal hernia (68 patients, 30.4%). It was determined that the rate of low back pain was 72.3% higher in patients aged 60 and over. It was observed that as the education level increased, the rate of low back pain decreased significantly. 57.1% of the patients were found to be low-income; low back pain rate was higher in this group compared to the others. When we examined the relationship between smoking and low back pain, it was determined that 60.7% of the patients with low back pain were smoking.
Conclusion: A significant relationship was found between low back pain and an advanced age female patient, low economic level, low education level, and smoking.
Dynamics of Law Enforcement of the Islamic Criminal Law in Aceh in the Indonesian Democratic System
Authors: Adawiah Rabiatul , Kamaludin Ihsan 
Published: October 2021

<p>This study focuses on analyzing the dynamics of the application of the Criminal Code <em>(Qanun Jinayah)</em> in the Aceh region. In the Pancasila democratic system run by the Indonesian state, the government guarantees the right of every citizen and belief group to manifest their teachings, but there are some areas that have the authority to enforce special policies such as Aceh which has ratified regional regulations based on Islamic law and the State supports the application of the rules. the. The method used in this study is descriptive qualitative research expected to be able to reveal qualitative information with description-analysis using the strategy used in this research is a case study. This research indicates that the implementation of <em>Qanun Jinayah </em>carried out in Aceh often results in differences of opinion because some parties consider that the application of the law overlaps with human rights which is usually implemented in democratic countries such as Indonesia, moreover the law also applies to non-Muslim residents who live in Aceh. However, there are also several parties who continue to support the implementation of the <em>Qanun Jinayah</em> to continue to be enforced because they have followed special rules ratified by the Government of Indonesia.</p><p> <em>Penelitian ini berfokus untuk menganalisa dinamika penerapan Peraturan Tindak Pidana (Qanun Jinayah) di wilayah Aceh. Di dalam sistem demokrasi Pancasila yang dijalankan oleh negara Indonesia, pemerintah menjamin hak setiap warga negara maupun kelompok kepercayaan untuk memanifestasikan ajarannya, namun terdapat beberapa wilayah yang memiliki otoritas untuk memberlakukan kebijakan khusus seperti Aceh yang telah mengesahkan peraturan daerah bedasarkan syariat Islam dan Negara mendukung penerapan aturan tersebutMetode yang digunakan di dalam penelitian ini adalah kualitatif deskriptif yang dimaksudkan untuk menganalisa topik secara mendalam serta menggunakan strategi studi kasus. Penelitian ini mengindikasikan bahwa penerapan Qanun Jinayah yang dilakukan di Aceh sering kali menghasilkan perbedaan pendapat dikarenakan beberapa pihak menilai bahwa penerapan hukum tersebut tumpang tindih dengan hak asasi manusia, apalagi hukum tersebut juga berlaku bagi penduduk non-muslim yang tinggal di daerah Aceh. Meskipun demikian, terdapat juga beberapa pihak yang terus mendukung penerapan Qanun Jinayah tersebut untuk dapat terus diberlakukan karena sudah mengikuti aturan khusus yang disahkan oleh Pemerintah Indonesia</em></p>