bluuebunny/crossref_metadata_2025_split huggingface dataset:
Social Entrepreneurship and Sustainable Development: the Creation of a Digital Platform Dedicated to Resource Sharing: Moroccan Case Study
Authors: Hafsa Lemsieh , Rachida Boumour , Nacer Mahouat , Khaoula Hadri , Ibtissam Abarar , Abderahim Benlekouiri 
Published: October 2024

Objective: The objective of this study is to investigate and analyze the role of digital social entrepreneurship in achieving sustainable development goals, with a deep focus on the creation of a digital platform for resource sharing.

Theoretical Framework: The study is based on the concepts of social entrepreneurship and sustainable development, emphasizing their role in addressing social and environmental challenges such as climate change and inequality, while leveraging digitalization to maximize impact.

Method: A quantitative study was conducted with 134 participants to examine the impact of digital social entrepreneurship on sustainable development. The data were collected using a structured questionnaire distributed through a non-probability snowball sampling method.

Results and Discussion: The results demonstrate how the creation of a resource-sharing platform can exemplify digital social entrepreneurship. By connecting individuals and organizations for the sharing of materials, skills, and knowledge, the platform fosters the sharing economy, reduces waste, and promotes community cooperation. These outcomes contribute to the achievement of various sustainable development goals.

Research Implications: The findings provide insights into the practical application of digital platforms in promoting sustainability and social entrepreneurship. They suggest that technology can be effectively harnessed to address global challenge.

Originality/Value: This study contributes to the literature by illustrating how digital social entrepreneurship can serve as a powerful tool for sustainable development. Its originality lies in the innovative approach of combining technology with social problem-solving to drive socio-economic and environmental progress.
Detection of Volcanic Ash Using Goes-16 Satellite Imagery: Case Study of Popocatépetl Volcano, Mexico
Authors: Juárez Santiago Piñón , Ramírez-Serrato Nelly L. , Valade Sébastien 
Published: October 2024

Objective: The objective of this study is to investigate the accuracy of volcanic ash detection using satellite imagery, to improve existing monitoring tools to adapt them to the Popocatépetl volcano in Mexico.

Theoretical Framework: Volcanic ash detection via remote sensing employs Pavolonis' algorithms that compare radiances in the thermal and mid-infrared spectrum. This approach differentiates ash from clouds and water vapor by leveraging its differential absorption. Satellites such as GOES-16, which capture multispectral data, optimize the continuous detection and monitoring of ash dispersion, even in areas of low concentration.

Method: Three volcanic ash detection algorithms were compared using images from the Popocatépetl eruption event on May 21, 2023: two developed by Pavolonis, which combine thermal and mid-infrared bands, and a third, a spectral adaptation designed to enhance precision at the edges of the ash cloud, tailored to the study area. Results were validated with an RGB ash image provided by NOAA.

Results and Discussion: Pavolonis' algorithms provided a solid foundation for general detection, but the third algorithm, specifically designed for this study, significantly improved edge detection where classification conditions are more complex. This improvement was reflected in a higher agreement with the RGB ash image used as a reference. However, limitations related to atmospheric interference were identified, which require further adjustments in low ash concentration scenarios.

Research Implications: The findings of this research have significant practical and theoretical implications for volcanic risk management and environmental protection. Enhanced accuracy in volcanic ash detection can optimize monitoring and early warning strategies, reducing risks to public health and infrastructure.

Originality/Value: This study contributes to the literature by introducing a specific spectral adaptation to improve edge detection of volcanic ash, a novel approach not previously addressed. The research's relevance lies in its ability to refine monitoring methodology, providing more effective tools for volcanic risk management and offering a model applicable to other areas facing similar remote sensing challenges.
Solubility of Amoxicillin Trihydrate Hydrochloride in Water
Authors: Alves Daniela Maria , Souza Luciana Cristina de , Santos Tamires de Paula dos , Begnini Mauro Luiz , Capuci Ana Paula Silva 
Published: October 2024

Objectives: This study aims to determine the solubility of amoxicillin trihydrate hydrochloride in water at different temperatures, addressing the scarcity of solubility data for this substance in the literature. The research focuses on the solubility behavior of the semi-synthetic antibiotic, part of the β-lactam group, widely used orally.

Theoretical Framework: Amoxicillin is a β-lactam antibiotic of great therapeutic importance. Its solubility is relevant to the effectiveness of oral formulations and varies according to temperature. The literature on the solubility equilibrium of this compound is limited, motivating new studies that assist in the development of pharmaceutical solutions and the understanding of its physicochemical properties.

Method: The solubility of amoxicillin trihydrate hydrochloride was determined at three temperatures: 298.15 K, 309.15 K, and 318.15 K, using the UV spectrophotometry method. The experiment involved 3 hours of stirring and 2 hours of decantation, with a 1 mL aliquot taken for analysis. The samples were diluted in 100 mL volumetric flasks and analyzed by spectrophotometer.

Results and Discussion: The experimental results allowed correlating the solubility of amoxicillin trihydrate hydrochloride with empirical equations from the literature. The solubilities obtained demonstrated precision, with low relative deviation between the experimental values and those calculated by the equations. This indicates that the empirical models are adequate for predicting solubility behavior at different temperatures.

Research Implications: The research contributes to enriching the solubility database of antibiotics, essential for drug formulation and the development of new therapeutic applications. The precision of the experimental data supports future studies in the field of pharmacology and chemical engineering, particularly in the context of solid and liquid formulations.

Originality/Value: The study is original in addressing the solubility of amoxicillin trihydrate hydrochloride in water at different temperatures, filling a gap in the literature. Additionally, the use of UV spectrophotometry and the correlation of the data with empirical equations reinforce the validity of the results, making it valuable for researchers and professionals in the pharmaceutical sector.
Digital Mini-Archives: Social Media Users as Curators of an Architectural Utopia
Authors: Tošić Jovana 
Published: October 2024

This paper explores the importance and meaning of a new concept of architectural archives – digital mini-archives in the form of social media profiles (Instagram profiles), whether they are public or private. The paper's interpretation of digital architectural archives is based on Jacques Derrida's interpretation of archives. The aim is to analyze the relationship between archivists and users in the context of social media platforms, and the structure and content of digital mini-archives. I tried to select examples of different Instagram profiles whose content (photos, videos, and quotes) relates to architectural history and architectural design presented in an innovative manner. The hypothesis emphasizes a curating role of social media users as interpreters of architectural history references and their (new) meanings, as well as curators of the future of architecture. Also, the concept of architectural utopia concerns Nathaniel Coleman's theory of utopia in architecture and its contemporary interpretations. There is a strong bond between architectural utopia and digital mini-archives which enable architecture's utopian potential because of their flexibility, openness to change, and transformability. Thus, experimental projects with utopian potential are created based on digital mini-archives. However, do these digital mini-archives contribute by deciding which (part of) architectural history ought to be forgotten or remembered in collective memory and translated to another temporal context through experimental architectural design?
INFLUENCE OF IDEAS OF «POSTINDUSTRIALISM» ON DEVELOPMENT OF INDUSTRIAL CITIES OF URALS
Authors: МАЗАЕВ Г.В. , ВЕРХОВЫХ Е.Ю. 
Published: October 2024

В статье рассматриваются связи между изменением технологических укладов и планировочными структурами промышленных городов. Авторы предлагают новое понимание эволюции технологических укладов, существующих одновременно в различных территориальных «нишах». Показано, как идеи «постиндустриализма» влияют на экономическое развитие городов, какие изменения происходят в структуре занятости населения в связи с утратой промышленных территорий.
The article examines the relationship between the change in technological structures and the planning structures of industrial cities. The authors offer a new understanding of the evolution of technological structures, existing simultaneously in different spatial «niches». It is shown how the ideas of «post-industrialism» are influenced by the economic development of cities, what changes occur in the structure of employment of the population in connection with the loss of industrial territories.
THE PROCESS OF FORMATION OF NEW CITIES AND ITS ROLE IN DEVELOPMENT OF THE NATIONAL SYSTEM OF SETTLEMENT OF THE RUSSIAN FEDERATION
Authors: МАЗАЕВ А.Г. 
Published: October 2024

Статья посвящена описанию количественных и качественных характеристик процесса образования новых городов в ходе исторического развития Национальной системы расселения Российской Федерации. Показаны роль и значение градообразования как процесса, делающего систему расселения жизнеспособной. Показана пространственно-временная неравномерность градообразования, выявлены два его исторических максимума. Рассмотрено влияние государственной политики на ускорение градообразования в российской истории.
The article is devoted to the description of quantitative and qualitative characteristics of the process of formation of new cities in the course of the historical development of the National System of Settlement of the Russian Federation. The role and importance of city formation as a process that makes the resettlement system viable is shown. The spatio-temporal unevenness of the town formation is shown, its two historical maxima are revealed. The influence of state policy on the acceleration of city formation in Russian history is shown.
THE PRESERVATION AND RECONSTRUCTION OF RESIDENTIAL COMPLEXES OF CONSTRUCTIVISM IN YEKATERINBURG-SVERDLOVSK (Part 2)
Authors: МИХАЙЛОВА Л.Г. , ДОЛГОВ А.В. , КУРАШОВ Ю.Ю. 
Published: October 2024

В статье рассматриваются проблемы сохранения жилых комплексов, построенных в Екатеринбурге-Свердловске в 1920-1930-е годы в стилевых формах архитектуры конструктивизма, в том числе являющихся объектами культурного наследия, для их сохранения, реабилитации и ревитализации.
The article deals with problems of preservation of the residential complexes built in Yekaterinburg-Sverdlovsk in 1920-1930-ies of the in style forms of constructivism, including those which are objects of cultural heritage, for their preservation, rehabilitation and revitalization.
STRUCTURE OF POLYSILICATE BINDING FOR SILICATE PAINTS
Authors: ЛОГАНИНА В.И. , АВЕРИН И.А. , МАЖИТОВ Е.Б. , КАРМАНОВ А.А. 
Published: October 2024

Предложено использовать в качестве связующего при изготовлении силикатных красок полисиликатные растворы, полученные смешением жидкого стекла и золя кремниевой кислоты. Приведены сведения о структуре и свойствах натриевого полисиликатного связующего. Установлено, что введение золя способствует увеличению доли высокополимерных фракций кремнекислородных анионов, причем с увеличением содержания золя доля полимерной формы кремнезема возрастает. Разработана рецептура состава на основе полисиликатного связующего. ©Логанина В. И., Аверин И. А., Мажитов Е. Б., Карманов А. А., 2017
It is proposed to use polysilicate solutions obtained by mixing liquid glass and silicic acid sol as a binder in the manufacture of silicate paints. Information on the structure and properties of the sodium polysilicate binder is presented. It was found that the introduction of the sol contributes to an increase in the fraction of high-polymer fractions of silicic anions, and with an increase in the sol content the fraction of the polymer form of silica increases. A composition based on a polysilicate binder was developed.
solving the problem of routing corporate transport
Authors: Васина Е.В. , Борсук Н.А. 
Published: October 2024

Актуальность данной работы представлена тем, что в наше время в целях оптимизации своей работы все большее число компаний вводит систему корпоративного транспорта. Данное введение действительно позволяет экономить время, давая сотрудникам компании возможность организованно и с комфортом добираться до рабочего места. Однако при неправильной организации транспортных маршрутов компания может нести убытки и вовсе отказаться от корпоративного транспорта, хотя в большинстве случае требуются анализ и оптимизация маршрутов, которые превратят корпоративный транспорт в надежную и полезную систему.
The relevance of this topic is represented by the fact that nowadays in order to optimize their work, an increasing number of companies are introducing a corporate transport system. This introduction really saves time by giving employees the opportunity to get to the workplace in an organized and comfortable way. However, if transport routes are improperly organized, the company may incur losses and completely abandon corporate transport. In most cases, analysis and optimization of routes are required, which will turn corporate transport into a reliable and useful system.
reaction between uric acid and amines
Authors: Чикина М.В. , Ильясов С.Г. , Синицына А.А. 
Published: October 2024

В данной статье приведены результаты исследования взаимодействия мочевой кислоты с аминами, показано что при 25 °С в водной среде в присутствии аммиака и окислителя происходит образование новых перспективных производных иминоаллантоина: 4-этилиминоаллантоин, 4-пропилиминоаллантоин, 4-изо-пропилиминоаллантоин, 4-н-бутилиминоаллантоин, 4-изо-бутилиминоаллантоин, 4-трет-бутилимино-аллантоин, 4-пропаргилиминоаллантоин, 4-фенилиминоаллантоин. Расчётным путем с помощью программы PASS показано, что полученные соединения обладают биологической активностью, а именно обладают кералитическим действием с вероятностью выше 84 %.
Here we report the study results on the reaction between uric acid and amines and demonstrate that the reaction in aqueous medium over ammonia at 25 °С affords new promising iminoallantoine derivatives such as 4-ethylliminoallantoine, 4-propyliminoallantoine, 4-iso-propyliminoallantoine, 4-n-butyliminoallantoine, 4-iso-butyliminoallantoine, 4-tert-butylimino-allantoine, 4-propargyliminoallantoine and 4-phenyliminoallantoine. The prediction in the PASS software showed that the resultant compounds exhibit a biological activity, more specifically a keratolytic action with a probability of over 84%.
PULSED AEROSOL GENERATION
Authors: Муравлев Е.В. , Ворожцов А.Б. , Павленко А.А. , Титов С.С. , Кудряшова О.Б. 
Published: October 2024

Федеральное государственное бюджетное учреждение науки Институт проблем химико-энергетических технологий Сибирского отделения Российской академии наук, г. Бийск Представлены результаты исследования возможности генерации аэрозолей различного физико-химического состава импульсными методами с использованием энергии высокоэнергетических веществ (ВЭМ), позволяющие за краткие промежутки времени выделять большое количество энергии. При диспергировании жидких сред импульсными методами механизм образования аэрозолей чрезвычайно сложен и характеризуется большим числом параметров, которые определяются как свойствами дисперсной фазы, так и свойствами внешней среды. В статье приведены устройства импульсных распылителей и характеристики генерируемых ими аэрозолей.
The results of the study of the possibility of generating aerosols of different physicochemical composition by pulse methods using energy of high-energy substances are presented, which allow to release a large amount of energy over short periods of time. When dispersing liquid media by pulse methods, the mechanism of aerosol formation is extremely complex and characterized by a large number of parameters, which are determined by both the properties of the dispersed phase and the properties of the external medium. The article shows the devices of pulse sprayers and the characteristics of aerosols generated by them.
DEVELOPMENT OF A MATHEMATICAL MODEL FOR RESEARCHING THE PROCESS OF REDUCTION OF TUNGSTEN HEXAFLUORIDE BY GASEOUS HYDROGEN
Authors: Шубин А.К. 
Published: October 2024

В работе рассмотрена математическая модель, описывающая течение ламинарной стационарной вязкой несжимаемой смеси газа в трехмерном осесимметричном канале. Математическая модель, описывающая этот процесс, состоит из уравнений Навье – Стокса, уравнения неразрывности, тепло- и массообмена, которые записаны в безразмерной форме с учетом осесимметричности в цилиндрической системе координат. Решение уравнений осуществляется в физических переменных «скорость – давление» на разнесенной разностной сетке. Показано влияние характерных параметров и критериев на распределение полей температуры. Полученная математическая модель позволяет проводить численные исследования по выбору оптимальных условий осуществления процесса.
The paper considers a mathematical model describing the flow of a laminar stationary viscous incompressible gas mixture in a three-dimensional axisymmetric channel. The mathematical model describing this process consists of the Navier - Stokes equations, the equations of continuity, heat and mass transfer, which are written in dimensionless form, taking into account axisymmetry in a cylindrical coordinate system. The equations are solved in physical variables "velocity - pressure" on a spaced difference grid. The influence of characteristic parameters and criteria on the distribution of the fields of temperature. The obtained mathematical model makes it possible to carry out numerical studies on the choice of optimal conditions for the process of reduction of tungsten hexafluoride with hydrogen.
APPLICATION OF THE GENETIC ALGORITHM FOR DEFINITIONS OF THE ACTUAL STATE CATALYSTS
Authors: Шварев Е.В. , Сиротина Е.В. , Крышко К.А. , Баширов М.Г. , Хафизов А.М. 
Published: October 2024

Этилен является одним из сырьевых материалов в химической промышленности. Производство этилена считается жизненно важным символом национальной всесторонней силы в нефтехимической промышленности. Для увеличения экономического эффекта производства этилена необходимо внедрять системы усовершенствованного управления технологическим процессом (СУУТП), которые демонстрируют более оптимальные характеристики управления по сравнению с традиционным управлением процессом. В данной статье описывается совершенствование информационно-измерительной системы производства этиленовой продукции, заключающееся в определении коэффициента скорости проявления коксовых отложений в катализаторах. Цена ошибочных прогнозов состояния катализаторов гораздо выше, чем при неверной оценке активности. Очевидно, что необходимы надежные и обоснованные методы контроля состояния катализаторов. Поэтому в последнее время наряду с классическими способами определения качества каталитических контактов развиваются и методы обработки результатов тестирования с использованием математических моделей. Авторами предлагается отслеживать фактическое состояние катализатора с помощью генетического алгоритма.
Ethylene is one of the raw materials in the chemical industry. Ethylene production is considered a vital symbol of the nation's all-round strength in the petrochemical industry. To increase the economic effect of ethylene production, it is necessary to introduce advanced process control systems (SUPS), which demonstrate more optimal control characteristics compared to traditional process control. This article describes the improvement of the information-measuring system for the production of ethylene products, which consists in determining the coefficient of the rate of manifestation of coke deposits in catalysts. The cost of erroneous predictions of the state of catalysts is much higher than with an incorrect estimate of activity. It is obvious that reliable and valid methods for monitoring the catalyst condition are needed. Therefore, recently, along with the classical methods for determining the quality of catalytic contacts, methods for processing test results using mathematical models have been developing. The authors propose to track the actual state of the catalyst using a genetic algorithm.
IMPLEMENTATION OF THE ADVANCED MANAGEMENT SYSTEM FOR ETHYLENE-PROPYLENE PRODUCTION BASED ON YOKOGAWA CENTUM VP
Authors: Сиротина Е.В. , Шварев Е.В. , Крышко К.А. , Баширов М.Г. , Хафизов А.М. 
Published: October 2024

Производство ацетилена окислительным пиролизом природного газа представляет собой сложную химико-технологическую систему. Одним из важнейших этапов, при создании этиленовой продукции, является гидрирование ацетилена в этан-этиленовой фракции (ЭЭФ). Для ускорения процесса гидрирования, в реакторах применяют катализаторы. Как и во многих технологических процессах при гидрировании образуются побочные продукты реакции, снижающие эффективность катализаторов, ускоряющие их закоксованность. Рассматривается вопрос закоксованности катализатора. Предложен вариант усовершенствованный системы управления, при котором на основе анализа данных с датчиков, используемых для контроля технологического процесса в реакторе, будет отслеживать фактическое состояние закоксованности катализатора. В качестве основополагающего инструмента, предлагается использовать генетический алгоритм. С помощью генетического алгоритма, появляется возможность определить коэффициент скорости проявления коксовых отложений. Предлагаемый вариант позволит избежать плановых остановок процесса и улучшить экономическую составляющую рассматриваемого оборудования.
Acetylene production by oxidative pyrolysis of natural gas is a complex chemical-technological system. One of the most important stages in the creation of ethylene products is the hydrogenation of acetylene in the ethane-ethylene fraction (EEF). To accelerate the hydrogenation process, catalysts are used in the reactors. As in many technological processes, hydrogenation produces by-products of the reaction, which reduce the efficiency of catalysts and accelerate their coking. The question of catalyst coking is considered. A variant of an improved control system is proposed, in which, based on the analysis of data from sensors used to control the technological process in the reactor, the actual state of coking of the catalyst will be monitored. It is proposed to use a genetic algorithm as a fundamental tool. With the help of a genetic algorithm, it becomes possible to determine the rate of development of coke deposits. The proposed option will allow avoiding planned process shutdowns and improving the economic component of the equipment under consideration.