bluuebunny/crossref_metadata_2025 huggingface dataset:
Численное моделирование напряженно-деформированного состояния массива в зоне очистного пространства
Authors: Тажибаев Д.К. , Кыдрашов А.Б. , Абдыгалиева А.К. , Мурзагалиева А.А.
Published: July 2024

Шақтының батыс қанатындағы Д-6 қабатындағы 322-Д6-3-З лаваның тазартпа кеңістігі маңайындағы тау сілемінің кернеулі-деформациялы күйін сандық модельдеудің нәтиже-лері қарастырылды, және «Қазақстан» шақтысының батыс қанатындағы тау-кен геологиялық жағдайын талдау жасалды. «Phase2» бағдарламасы көмегімен соңғы элемент-тер әдісімен модельдеу орындалды. Тазартпа кеңістігінің шеткі жағындағы тіректік қысым аймағының қалыптасуымен қатар тазартпа қазбасының төбесі мен табанындағы созылатын вертикальдық және горизонтальдық кернеулер мен кернеулердің мәнін түсіру аймағының қалыптасуын есептің қорытындылары арқылы көреміз. Тазартпа қазбасының табаны мен төбесіндегі бұзылыс аймағының қалыптасу динамикасын талдау нәтижесінде байқаймыз 322-Д6-3-З лавасының бұзылу қадамдарына болжам жасалды. №22585 мен №22576 барлау ұңғымалары бойынша мәліметтер алынды.

Рассмотрены результаты численного моделирования напряженно-деформированного состояния массива горных пород в районе обработки лавы 322-Д6-3-З в пласте Д-6 западного крыла шахты, а также проведены горно-геологические исследования. Проанализирована ситуация в западном крыле шахты «Казахстанская». С помощью программы «Phase2» моделирование производилось методом конечных элементов. Наряду с формированием зоны опорного давления на краю обрабатываемого пространства, по результатам расчета обнаружено формирование зон разгрузки вертикальных и горизонтальных напряжений и напряжений кровли и почвы очистной выработки. В результате анализа динамики формирования зон разрушения кровли и почвы камеры были предположены шаги разрушения лавы 322-Д6-3-З. Данные получены по разведочным скважинам №22585 и №22576.

The results of numerical modeling of the stress-strain state of the rock mass in the area of ​​processing of longwall 322-D6-3-Z in the D-6 layer of the western wing of the mine, as well as mining and geological studies are considered. The situation in the western wing of the Kazakhstanskaya mine is analyzed. With the help of the «Phase2» program, the modeling was carried out by the finite element method. Along with the formation of the support pressure zone at the edge of the treated area, according to the results of the calculation, we see the formation of zones of unloading of vertical and horizontal stresses and stresses, the roof and soil of the working excavation. As a result of the analysis of the dynamics of the formation of the destruction zone, the roof and soil of the chamber lava 322-D6-3-Z destruction steps were assumed. The data were obtained for exploration wells №22585 and №22576.
Development of a hybrid technology of the sulfidizing roasting of zinc, lead-bearing middlings of the enrichment products
Authors: ЧепуштановаТ А. , Меркибаев Е.С. , Мотовилов И.Ю. , Поляков К.В.
Published: July 2024

В статье приведены результаты по обоснованию и разработке гибридной технологии комплексной переработки промпродуктов обогащения посредством сульфидирующего обжига с пиритным концентратом и последующим магнитным и флотационным обогащением огарка, обеспечивающее повышение извлечения цинка и свинца из промпродуктов в селективные концентраты. Приведены результаты механизма процесса и условия сульфидирования с получением магнитного пирротина и гидрофобных сульфидов свинца и цинка. Разработана технология гибридного сульфидирующего обжига окисленных соединений свинца и цинка с достижением степени сульфидирования до 95%. Представлены результаты мокрой магнитной сепарации, которые показывают извлечение в магнитную фракцию до 95% магнитных пирротинов.

The paper presents the results of the substantiation and development of a hybrid technology for complex processing of enrichment middlings by sulfidizing roasting with pyrite concentrate and subsequent magnetic and flotation enrichment of cinder, which provides an increasing of the zinc and lead extraction from middlings into selective concentrates. Presents the results of the mechanism of the process and the sulfidization conditions with the production of magnetic pyrrhotites and hydrophobic lead and zinc sulfides. Elaborated technology of hybrid sulfidizing roasting of lead and zinc oxidized compounds allow to achieve the sulfidization degree of Pb and Zn is about 95%. Introduced the results of wet magnetic separation, which show the extraction of magnetic pyrrhotites up to 95% with Fe0,892S-Fe0,869S composition into the magnetic fraction. The results of flotation beneficiation are presented, it is established that the through-extraction from the beneficiation tailings into the foam product during flotation in a direct one-stage cycle of zinc is more than 84%, lead – 80%.
Investigation of the possibility of extraction of sulfide minerals in the complex processing of oil shales
Authors: Умарова И.К. , Хайитов О.Г.
Published: July 2024

Для изучения вещественного состава горючих сланцев проведены спектральный, химический и минералогический анализы. В качестве методов обогащения исходных сланцев приняты гравитационные, флотационные, пирометаллургические и гидрометаллургические. Результаты анализа гравитационного обогащения на концентрационном столе показывают, что извлечение сульфидов низкое. По результатам опытов флотации видно, что флотационным методом разделение органических компонентов в горючих сланцах не достигается. Пирометаллургические исследования проводились при конечных температурах 350°С, 550-600°С, 850-900°С с выдержкой времени 10-15 минут после окончания выделения жидкой фазы пиролиза. Результаты пирометаллургических исследований показывают, что максимальное извлечение изучаемых элементов достигается при выщелачивании золы.

Spectral, chemical and mineralogical analyzes were carried out to study the material composition of oil shale. Gravity, flotation, pyrometallurgical and hydrometallurgical research methods are adopted as methods of enrichment of the initial shale. The results of the concentration table gravity analyzes show that the recovery of sulfides is low. According to the results of flotation experiments, it can be seen that the separation of organic components in oil shale is not observed by the flotation method. Pyrometallurgical studies were carried out at final temperatures of 350 ° C, 550-600 ° C, 850-900 ° C with a time delay of 10-15 minutes after the end of the separation of the liquid phase of pyrolysis. The results of pyrometallurgical studies show that the maximum extraction of the studied elements is achieved with ash leaching.
Features of designing measures to prevent sudden emissions of coal and gas in reservoirs with a high rate of methane desorption
Authors: Баймухаметов С.К. , Полчин А.И. , Муллагалиева Л.Ф. , Рахимова А.Р.
Published: July 2024

Статья посвящена совершенствованию существующих мероприятий по предотвращению внезапных выбросов угля и газа особо выбросоопасного пласта Д6. Определен скачкообразный рост газоносности пласта Д6 с определенной глубины залегания, а также перечислены особенности его разработки. Рассмотрены недостатки ранее применяемой технологии предупреждения внезапных выбросов угля и газа. Приведены случаи самых крупных внезапных выбросов угля и газа при проведении подготовительных выработок, а также причины их возникновения на шахтах Карагандинского угольного бассейна. Даны результаты исследования мягкой пачки угля на проницаемость. Получен результат, позволяющий в несколько раз снизить природную газоносность, который показал свою эффективность.

Article is devoted to the improvement of existing measures to prevent sudden emissions of coal and gas from a particularly explosive formation D6. The abrupt growth of the gas content of the D6 formation from a certain depth of occurrence is determined, and the features of its development are listed. The disadvantages of the previously used technology for preventing sudden emissions of coal and gas are considered. The cases of the largest sudden emissions of coal and gas during preparatory workings, as well as the causes of their occurrence in the mines of the Karaganda coal basin are given. The results of a study of a soft pack of coal on permeability are given. The result has been obtained, which has shown its effectiveness, allowing several times to reduce the natural gas content.
The introduction of new technologies in the technical re-equipment of the mining production on the example of the Bogatyr open-pit mine
Authors: Андрюкова И.В. , Шаметова А.А.
Published: July 2024

Проведено исследование внедрения новых технологий в техническое перевооружение производства горной промышленности и комплекса мероприятий по повышению технико-экономического уровня разреза Богатырь, а также экономический эффект от их применения. Предлагаемые проекты внедрения инновационных технологий и расчет экономического эффекта от их применения улучшат качественные характеристики продукции, повысят производительность труда и замедлят рост производственной себестоимости добычи угля. Методика расчета экономического эффекта технического перевооружения может быть применена для проведения расчетов технико-экономического обоснования на этапе коммерциализации инновационных проектов перевооружения производства в горной промышленности.

The introduction of new technologies into the technical reequipment of production and a set of measures to improve the technical and economic level of the Bogatyr section were carried out. The purpose of the study is to consider the introduction of new technologies in the re-equipment of mining production and its economic effect from the application. The proposed projects for the introduction of innovative technologies and the calculation of the economic effect of their application will improve the quality characteristics of products, as well as increase labor productivity and slow down the growth of the production cost of coal mining. The methodology for calculating the economic effect of technical re-equipment of «Bogatyr Komir» LLP can also be used to carry out calculations of a feasibility study at the stage of commercialization of innovative projects for re-equipment of production in the mining industry.
Results of testingthe permeability of polyvinil chloride membranes with various fractions of waste
Authors: Акбаева Л.Х. , Тайбеков Е.С.
Published: July 2024

Были проведены испытания синтетических мембран Biobrane Liner производства Serge Ferrari SAS, Франция. На мембраны укладывали различные фракции отходов, таких как нефтешлам, зола, продукты питания, навоз, зерно испорченное. Через 21 день сравнивали результаты химического состава почв под мембранами. Выявлены следующие общие закономерности, как уменьшение влажности в почве под пленкой от 0,8 до 2,7%, слабый сдвиг pH почвы в щелочную сторону на 0,1-0,7. Увеличение под пленкой сульфатов от 2 до 26 ммоль, незначительное увеличение общей жесткости, незначительное увеличение удельной активности Cs-137. А также выявлены частные характеристики проницаемости мембран. В целом содержание химических компонентов в почве осталось в рамках допустимых концентраций.

The tests were carried out on synthetic membranes Biobrane Liner manufactured by Serge Ferrari SAS, France. Various fractions of waste, such as oil sludge, ash, foodstuffs, manure, spoiled grain, were placed on the membranes. After 21 days, the results of the chemical composition of the soils under the membranes were compared. The following general patterns were revealed, such as a decrease in moisture in the soil under the film from 0.8 to 2.7%, a slight shift in soil pH to the alkaline side by 0.1-0.7. An increase under the film of sulfates from 2 to 26 mmol, a slight increase in the total hardness, a slight increase in the specific activity of Cs-137. And also revealed the particular characteristics of the permeability of the membranes. In general, the content of chemical components in the soil remained within the permissible concentrations.
Ways to optimize drilling and blasting operations
Authors: Ескенова Г.Б. , Абдиева А.Т. , Есен А.М.
Published: July 2024

В статье приводится решение комплекса задач по разработке ресурсосберегающей технологии разрушения массивов горных пород бурением и взрыванием с использованием эмульсионных взрывчатых веществ местного производства, включающее в себя комплексное исследование прочностных характеристик массива горных пород с целью установления возможности его рационального разрушения, с одной стороны, путем разделения массивов бурением и взрыванием с использованием эмульсионных взрывчатых веществ местного производства с целью воздействия в нужном месте, а с другой – определения взрывчатых свойств взрывчатых веществ, уточнение возможности создания определенного давления при взрыве. При этом можно добиться значительного сокращения материальных ресурсов, затрачиваемых на буровзрывные работы и повышения качества подготовки горной массы к выработке.

The solution of a complex of tasks for the development of resource-saving technology for the destruction of rock massifs by drilling and blasting using locally produced emulsion explosives includes a comprehensive study of the strength characteristics of the local rock mass, in order to establish the possibility of their rational destruction, on the one hand, by separating the arrays by drilling and blasting using locally produced emulsion explosives in order to impact in the right place, and on the other hand, to determine the explosive properties of explosives, clarification of the possibility of creating a certain pressure during an explosion. At the same time, it is possible to achieve a significant reduction in material resources spent on drilling and blasting and improve the quality of preparation of the rock mass for mining.
Justification of the choice of a promising reservoir for the implementation of a project for the extraction of coalbed methane
Authors: Дрижд Н.А. , Мусин Р.А. , Жүнис Г.М. , Халикова Э.Р.
Published: July 2024

Совершенствование методики подсчета запасов метана имеет огромное значение для угольных предприятий, начиная с использования добываемого метана в котельной и заканчивая промышленной добычей газа. Недостаток энергетических ресурсов в Казахстане способствует повышению интереса к использованию нетрадиционных источников получения топливно-энергетического сырья. Одним из них, к тому же достаточно перспективным, является метан угольных пластов. Недостаточная изученность оценки ресурсов газа метана при отработке угольных месторождений приводит к большим потерям. Данное исследование позволит более точно вычислить ресурсы газа метана угольных пластов. В статье предлагается технология подсчета полезного компонента путем усредненного количества сорбционной емкости углей каждого из пластов.

Improving the methodology for calculating methane reserves is of great importance for coal enterprises, starting with the use of extracted methane in the boiler room and ending with industrial gas production. The lack of energy resources in Kazakhstan contributes to increasing interest in the use of non-traditional sources of fuel and energy raw materials. One of them, moreover, is quite promising, is coalbed methane. Insufficient knowledge of the assessment of methane gas resources during the development of coal deposits leads to both large losses. This study will make it possible to more accurately calculate the methane gas resources of coal seams. The article proposes a technology for calculating the useful component by averaging the amount of sorption capacity of the coals of each of the layers.
Brief analysis of iron ore raw material market in the Republic of Kazakhstan
Authors: Ыдырышев А.К. , Тажбенов К.А. , Джумагулова Г.Е. , Ибраева Г.М.
Published: July 2024

В статье рассмотрены проблемы отечественного рынка железорудного сырья и пути их решения. Установлено, что запасы железных руд определяют развитие черной металлургии, в целом, и сталеплавильной отрасли, в частности, обеспечивая их необходимым сырьем, а также закрывая потребность отечественного машиностроения в литье и сплавах, что гарантирует производство металлопроката в широком ассортименте. Особое внимание уделено анализу объемов добычи железорудного сырья в разрезе регионов с указанием производителей и потребителей данной продукции. Отражены основные продуктовые тенденции железорудного сырья, производимого в стране, изучены вопросы ценообразования. Подчеркивается, что объемы разведанной железорудной базы Казахстана могут обеспечить значительное увеличение производства железорудного сырья с учетом перспектив развития производства и потребления железорудного сырья в Республике Казахстан.

This article discusses the problems of the domestic market of iron ore raw materials (further as iron ore) and ways to solve them. It is established that the iron and steel industry determines the development of ferrous metallurgy, in general, and the steelmaking industry, in particular, providing them with the necessary raw materials, as well as the need for domestic engineering in casting and alloys, which guarantees the production of rolled metal in a wide range. Particular attention is paid to the analysis of the volume of production of iron ore in the context of regions, indicating the producers and consumers of these products, the main product trends of iron ore produced in the country are reflected, pricing issues are studied. It is emphasized that the volumes of the explored iron ore base of Kazakhstan can provide a significant increase in the production of iron ore, taking into account the prospects for the development of production and consumption of iron ore raw materials in the Republic of Kazakhstan.
Технологии выделения нанозолота из природных и техногенных руд
Authors: Vorobyov A.E. , Peregudov V.V.
Published: July 2024

Innovative technologies for separating nanogold from natural and technogenic ores are disclosed. The main forms of presence of gold nanoparticles in mineral raw materials are described: in the crystal structure of carrier minerals, crystal structure defects, microcracks, and films of newly formed minerals. It is shown that the main minerals – concentrates of nanosized gold are chalcedonic quartz, albite, valensionite, arsenic pyrite, arsenopyrite, chalcopyrite, marcasite, iron oxides, realgar, clay minerals, etc. When developing a technology for the enrichment of gold-bearing ores, in which the presence of gold nanoparticles is established, it is necessary to take into account their physical and chemical properties that affect the essence of the technology used and its parameters, as well as characteristics.

Раскрыты инновационные технологии выделения нанозолота из природных и техногенных руд. Описаны основные формы нахождения наночастиц золота в минеральном сырье: в кристаллической структуре минералов-носителей, дефектах кристаллической структуры, микротрещинах и пленках новообразованных минералов. Показано, что основными минералами – концентратами наноразмерного золота являются халцедоновидный кварц, альбит, валенсионит, мышьяковистый пирит, арсенопирит, халькопирит, марказит, оксиды железа, реальгар, глинистые минералы. При разработке технологии обогащения золотосодержащих руд, в которых установлено наличие наночастиц золота, необходимо учитывать их физические и химические свойства, влияющие на сущность используемой технологии и ее параметры, а также характеристики.
Особенности геодезического наблюдения деформаций линейных объектов
Authors: Болатбек Ш.Ә. , Нұрлыжігітов Ж.Ә. , Мұқаметжан М.Б.
Published: July 2024

Бұл мақалада инженерлік құрылымдардың, сызықтық нысандардың оның ішінде мұнай мен мұнай өнімдерін сақтауға арналған резервуарлардың және мұнай айдау қондырғысының технологиялық жабдықтары мен құбырларының деформацияларын анықтау бойынша геодезиялық жұмыстарды жүргізу технологиялары қарастырылады. Мұнай өндіру объектілерінің тұрақтылығын талдау әдістемесі ұсынылады. Инженерлік құрылыстардың жұмыс істеу қауіпсіздігін қамтамасыз ету үшін геодезиялық мониторинг кеңінен қолданылады, оның мақсаты деформациялардың шектік шамаларын уақтылы анықтау, олардың пайда болу себептерін анықтау, қолайсыз процестердің әрекетін жою бойынша шараларды әзірлеу және қабылдау болып табылады. Инженерлік құрылымдардың өмірлік циклінің барлық кезеңдеріндегі геодезиялық өлшеулер мен бақылаулардың нәтижелері инженерлік құрылысты бақылау нәтижелерін көрсетудің кешенді жүйесін құрудың негізі болып табылады.

В данной статье рассматриваются технологии проведения геодезических работ по выявлению деформаций инженерных сооружений, линейных объектов, в том числе резервуаров для хранения нефти и нефтепродуктов, технологического оборудования и трубопроводов нефтеперекачивающей установки. Предложена методика анализа устойчивости объектов нефтедобычи. Для обеспечения безопасности функционирования инженерных сооружений широко применяется геодезический мониторинг, целью которого является своевременное определение предельных величин деформаций, выявление причин их возникновения, разработка и принятие мер по устранению действия неблагоприятных процессов. Результаты геодезических измерений и наблюдений на всех этапах жизненного цикла инженерных сооружений являются основой для создания комплексной системы отражения результатов контроля инженерного строительства.

In this article, the technologies of conducting geodetic works to detect deformations of engineering structures, linear objects, including tanks for storing oil and petroleum products, technological equipment and pipelines of an oil pumping unit are considered. A methodology for analyzing the stability of oil production facilities is proposed. To ensure the safety of the operation of engineering structures, geodetic monitoring is widely used, the purpose of which is to determine the limit values of deformations in a timely manner, identify the causes of their occurrence, develop and adopt measures to eliminate the action of adverse processes. Results of geodesic measurements and observations at all stages of the life cycle of engineering structures is the basis for creating a comprehensive system for displaying the results of control over engineering construction.
Исследование сульфидно-углеродистого материала с целью изучения физико-химических превращений при его обжиге
Authors: Narzullayev Ja.
Published: July 2024

Over the past decades, due to the decrease in the quality of mineral raw materials from developed deposits, the share of gold extracted from refractory ores has increased, the effective processing of which requires the development of more complex and combined schemes that ensure the most complete extraction of gold. For the same purpose, in 2019, Navoi Mining and Metallurgical Combine (NMMC) successfully launched a workshop for roasting sorption cyanidation tailings during the processing of gold-bearing ores from the Kokpatas and Daugyztau deposits. At this stage, the NMMC specialists face the task of intensifying and optimizing the roasting process. This paper briefly presents the results of a detailed study of the effect of temperature on chemical transformations occurring during roasting of sorption cyanidation tails, carried out in order to identify the reasons that prevent the disclosure of gold particles during roasting and its encapsulation.

В течение последних десятилетий в виду снижения качества минерального сырья разрабатываемых месторождений увеличивается доля золота, извлекаемого из упорных руд, эффективная обработка которых требует разработку более сложных и комбинированных схем, обеспечивающих максимально полное извлечения золота. С этой же целью в Навоийском горно-металлургическом комбинате (НГМК) в 2019 году был успешно запущен цех по обжигу хвостов сорбционного цианирования при переработке золотосодержащих руд месторождений Кокпатас и Даугызтау. На данном этапе перед специалистами НГМК стоит задача: интенсификация и оптимизация процесса обжига. В данной работе кратко представлены результаты детального исследования влияния температуры на химические превращения, происходящие при обжиге хвостов сорбционного цианирования, проведенного с целью выявления причин, препятствующих раскрытию частиц золота при обжиге и его инкапсуляции.
Цифровизация горнодобывающих активов
Authors: Ozhigin S.G.
Published: July 2024

The article considers the issues of using information technology to control mining companies’ engineering and business processes. It reveals the urgency of implementing an automated management system for mining operations powered. This system provides the basis for creating a virtual source of a mining company. The paper presents the software functionality in creating 3D models of deposits and surfaces, as well as solutions for companies with both opencast and underground mining methods. The proposed software solution contains the widest range of applications and supports the highest data transfer rate. A comprehensive approach and integration with other systems installed at enterprises allow you to find the best option for managerial decisions in terms of optimizing resources and processes, time and data traffic.

В статье рассматриваются вопросы использования информационных технологий для управления инженерными и бизнес-процессами горнодобывающих компаний. Это показывает актуальность внедрения автоматизированной системы управления горными работами, которая обеспечивает основу для создания виртуального источника горнодобывающей компании. В статье представлены функциональные возможности программного обеспечения для создания 3D-моделей месторождений и поверхностей, а также решения для компаний, использующих как открытые, так и подземные методы добычи полезных ископаемых. Предлагаемое программное решение содержит самый широкий спектр приложений и поддерживает самую высокую скорость передачи данных. Комплексный подход и интеграция с другими системами, установленными на предприятиях, позволяют найти оптимальный вариант управленческих решений с точки зрения оптимизации ресурсов и процессов, времени и трафика данных.
Multilingual Monetary Policy: Unfolding Language and Policy Preferences of Swiss Central Bankers
Authors: Schütze Florian , Diaf Sami
Published: July 2024

Understanding monetary policy has always been of paramount economic and political importance. However, it remains a difficult task, despite transparency efforts and the regular flow of information to the public, which becomes even more complex when communication channels are multilingual. This paper examines the policy narratives of the Swiss National Bank (SNB) in terms of language and policy preferences, using the corpus of speeches delivered by its members over the period 1997-2022. Using a dynamic semantic search strategy based on top2vec, the framework analysis was able to identify interlingual similarities and differences with the help of pre-trained multilingual models. The results show that the SNB's communication strategy is strongly oriented towards the objectives assigned to the central bank, with attention being paid to systemic risks, banking regulation and financial markets, which emerge as second but no less important objectives, closely linked to the international environment, in particular the Eurosystem as a strategic aspect of the stability of the Swiss franc. The results suggest that English is used exclusively to address core central banking issues (monetary policy, inflation and interest rates), while uncertainty concerns seem to be reported more in German or French. The resulting dual semantic space, consisting of embedded words and documents, yielded relevant topics with respect to the size and scope of the corpus. Furthermore, informative indices could be constructed for policy measurement, as a crisis index was found to be consistent with the business cycle fluctuations and technical recessions experienced in Switzerland over the last 25 years.
Unlocking the Potential of Machine Learning in Portfolio Selection: A Hybrid Approach with Genetic Optimization
Authors: Alzaman Chaher
Published: July 2024

In the field of financial market predictions, machine learning has been widely used to identify patterns and gain valuable insights. However, for success in portfolio selection, it is crucial to optimize factors that impact accuracy. This study focuses on combining machine learning and optimization to enhance stock selection and prediction capabilities. The work starts with hyperparameter optimization and utilizes three different machine learning algorithms: XGBoost, LSTM, and Deep RankNet. Our findings show a 40% improvement in results through the use of a genetic-based optimization technique, as well as a promising daily average return of 0.47% through a novel feature engineering approach. The study provides a framework for optimizing and learning in financial portfolio selection, with promising results for medium and small-sized traders.
Who Enjoys the Lion's Share? Unveiling Sentiment of the Media in Indonesia’s Presidential Election Using Large Multi-Language Model
Authors: Anggoro Angga Wahyu , Wahyuni Ani Tri
Published: July 2024

The media serves as a framing tool to influence people's decisions. With more than 220 million internet users in Indonesia, it is a promising avenue for gaining significant voter support in the presidential election. This study aims to contribute to existing knowledge by examining how media coverage shapes public perceptions of the presidential election. The research uses a large multi-language model to predict sentiment analysis for the investigation of media framing and cultivation theories. The study examines 778 headlines from 119 media outlets collected from news aggregator services in the campaign period to understand media behaviour throughout the presidential campaign. The findings reveal the alignment between media coverage during the presidential election and the result of the quick count.
The potential of Google Trend in estimating the absorption rate of European structural funds
Authors: Pierucci Eleonora , Caravaggio Nicola , Resce Giuliano
Published: July 2024

This study investigates the relationship between Google Trends (GT) interest in European Structural and Investment Funds (ESIF) and the absorption rate across 27 European Union countries. Utilizing a two-way fixed effect methodology, we analyse annual GT data from 2007 to 2016. Results reveal a consistently positive and statistically significant explicative power of lagged values of GT interest on absorption rates. The findings suggest that the online search behaviour regarding ESIF correlates with fund absorption, revealing the potential predictive value of GT data in the context of regional cohesion policies. This study contributes to the literature on the practical applications of GT across diverse domains and underscores its relevance in predicting the implementation of EU cohesion policies.
Exploring Enotourism’s Impact on Winery Competitiveness through Online Data
Authors: Baixauli Jose , Debon Ana María , Cervelló-Royo Roberto Elias , Domenech Josep
Published: July 2024

Enotourism has become an increasingly popular form of tourism in the wine industry, offering visitors the opportunity to discover the wine culture, history, and production process while enjoying the natural and cultural heritage of the region. Enotourism can improve the wine brand image, heritage, cellar reputation, and the Denomination of Origin (DO) recognition. This paper explores how enoturism offers, including visits, tastings, restaurants, and accommodation services, relate to the competitiveness of wineries in Spain. To this end, financial variables obtained from the Sistema de Análisis de Balances Ibéricos (SABI) are combined with indicators extracted from the wineries' websites. PCA is applied to financial variables and the first three components are used to measure the different dimensions of winery competitiveness. Results show that each dimension is associated with a different set of concepts related to enoturism offer.
In What is Europe Investing? A Text Mining Approach on Cohesion Projects
Authors: Fanelli Laura , Caravaggio Nicola , Di Renzo Giuseppe , Resce Giuliano , Santangelo Agapito Emanuele
Published: July 2024

In this Paper we analyze the dynamics of the interventions of European cohesion policies in the Italian territory - according to a regional division - focusing on the topics financed, extracted through text mining, in particular with the term document matrix and term frequency – inverse document frequency. From the analysis conducted on 51.971 projects financed from 2000 to 2022, a clear preponderance of the topics of internships, civil service and more generally aspects relating to the world of work emerges. Although these are the most frequent topics, by weighing the frequency of words in the summary of the call with the total value of the financing, it emerges that the most costly projects in terms of resources are those linked to the development of infrastructure. This innovative approach allows an innovative understanding of the spending trends, useful to improve the action of the European political decision-maker.
Improving Accuracy in Geospatial Information Transfer: A Population Density-Based Approach
Authors: Pérez Virgilio , Pavía Jose Manuel
Published: July 2024

The R package sc2sc offers fundamental tools for transferring information between census sections and postal codes in Spain, based on the cartography of these geographic segmentations. However, certain aspects for improvement have been identified. This document presents a substantial improvement to the package, optimizing the cp2sc function, which facilitates the transfer of information from postal codes to census sections. The introduced improvement considers population density as a corrective factor in the process, resulting in a more accurate and relevant data allocation. Various use cases highlight the improvement of the new methodology, though they also underline the need to work with updated and precise cartography, opening new lines of research and future work.
Can websites reveal the extent and degree to which a business’s values reflect national policy? A text embeddings approach
Authors: Hogan Alexander , Moran Stephanie Cussans , Hogan Kevin , Barker Beth , Woodall Richard
Published: July 2024

This paper demonstrates a novel application of WebAI, applying word vectorisation to website texts to measure the prevalence and proliferation of values associated with the Well-being of Future Generations (Wales) Act 2015 amongst Welsh businesses. This was achieved by training a model to recognise topics of particular importance in texts describing the WFGA, and then using this model to analyse the text hosted on Welsh business’s websites. The companies studied comprised a structured national sample of the Welsh economy. Our findings indicate that the method detects meaningful differences between regions, business sector and participants in a government innovation support program.
Digital Transformation in Supply Chain Management: A Bibliometric Analysis
Authors: Zhang Lihong , Banihashemi Saeed , Rui Aiwen , Chen Song
Published: July 2024

In an era dominated by digital advancements, Supply Chain Management (SCM) is undergoing significant transformations. This study aims to outline a digitally-enabled SCM framework by examining prevalent research themes, methodologies, collaboration models, and groundbreaking contributions. Leveraging bibliometric analysis techniques, 600 articles from 2002 to 2023, sourced from 3 top databases, was conducted using CiteSpace for keyword analysis, co-citation analysis, and emerging term evaluations. The research identifies three distinct phases in this field: initial, incremental, and accelerated, with a notable surge in research activity post-2017, particularly after 2019. China, the US, and the UK are major contributors. Dominant topics include technology integration, efficiency, globalization challenges, strategic management, and sustainability. The study reveals limited collaboration among authors but highlights influential scholars. Given the centrality of DT, it emphasizes the need for interdisciplinary exploration and consideration of rapidly evolving digital paradigms in future research endeavors.
A multi-platform framework for nowcasting social phenomena: a case study for food insecurity
Authors: Silveira Carneiro Bia , Resce Giuliano , Tucci Giulia , Ruscica Giosuè , Caravaggio Nicola , Fanelli Laura , Santangelo Agapito Emanuele , Cruciata Pietro
Published: July 2024

Given the growing significance of internet-based information flows, this research proposes a conceptual framework that integrates digital platforms to nowcast social phenomena, applied to the context of food security monitoring in the Global South. Building on the foundations of Digital Methods and online issue mapping, our research objective is to establish a multi-modal, multi-media model that monitors events from different perspectives to identify potential early warning signals arising from the data, ultimately informing policy actors and supporting early action. We apply three analytical processes: social listening, media monitoring and search interest analysis. Exploratory analysis on data from Zimbabwe point to the feasibility of the models applied to identify food security dimensions in text and search engine data. Further analysis is needed to interpret converging and diverging trends across the data streams, and their implications to food insecurity early warning.
Mapping Circular Economy in Spain with LinkedIn data
Authors: Tsagarakis Konstantinos P. , Daglis Theodoros , Tsironis George , Fafalios Pavlos
Published: July 2024

This paper presents a quantitative approach that captures the LinkedIn information that can be derived regarding companies and jobs that operate in a circular economy context. To do so, we perform this analysis for the regions of Spain, providing metrics for the standardization of the companies identified, for measurement reasons, while job posts and other information is analyzed. Finally, heatmaps and other graphs demonstrate the distribution of LinkedIn information for the various regions of Spain, concluding that Spain's regions do not perform in a homogenous way in LinkedIn regarding the circular economy.
The use of non-official data source for the analysis of public events: evidences from the Eurovision Song Contest 2022
Authors: Marletta Andrea , Forciniti Alessia , Moretti Magda
Published: July 2024

The use of non-official data sources as Twitter has been implemented for the monitoring of social and public events in many different fields during last years. Following this issue, this work proposes to analyse a very well-known musical event, the Eurovision Song Contest (ESC) 2022 using tweets pooled by the official hashtag of the competition. From a methodological point of view, text mining techniques have been applied to detect the most influencing terms and topics tweeted by users during the show and to compare the official results of the contest with a ranking only based on the appreciation of the Twitter users on posts relative to the participant countries.
The Algofeed project. A methodological proposal to assessing the effects of algorithmic recommendations on platformized consumption
Authors: Punziano Gabriella , Gandini Alessandro , Caliandro Alessandro , Airoldi Massimo , Padricelli Giuseppe Michele , Acampa Suania , Trezza Domenico , Crescentini Noemi , Rama Ilir
Published: July 2024

This paper outlines the construction phase of the consumption profiling, algorithmic awareness, and digital literacy tool within the ALGOFEED project. ALGOFEED, funded as an Italian Research Project of Significant National Interest (PRIN), seeks to illuminate the socio-cultural impacts of platform-based feedback loops while developing a novel methodological and theoretical framework for the sociological examination of consumer culture algorithms. The project aims to produce unique empirical insights into cultural consumption patterns on digital platforms in Italy. Specifically, ALGOFEED investigates the effects of automated content recommendations on platforms like TikTok and YouTube on individual and collective cultural consumption behaviours over time. The primary objectives include acquiring distinctive empirical findings on platform-driven cultural consumption in Italy, advancing a fresh methodological and theoretical approach for studying algorithmic consumer culture sociologically, and fostering algorithmic awareness among Italian consumers through impactful diffusion activities grounded in a transformative paradigm. In this study, the authors introduce the empirical tool designed to detect the feedback loop and define its components: digital skills, Platform Usage Type, and Algorithmic Awareness.
Challenges in Upholding Human Autonomy through the Right to be Forgotten
Authors: Zarrin Sadaf , Unceta Mendieta Irene
Published: July 2024

The paper examines the difficulties and challenges in implementing the right to be forgotten, highlighting the importance of this right for individual autonomy and privacy. It explores the main obstacles to upholding this right from legal, ethical, practical, and technical viewpoints, providing a summary of the existing problems and making recommendations for potential solutions. To improve the applicability of human rights in the digital world, the research emphasizes the significance of public awareness, international collaboration, and improvements in machine unlearning solutions. In order to assist the effective application of the right to be forgotten, the paper ends with suggestions for future research. These ideas seek to achieve a balance between autonomy, the need for privacy, and the rapid development of technology in digital spaces
INFLUÊNCIA DA MUDANÇA DO PH NA COMPOSIÇÃO QUÍMICA DE SOLOS TROPICAIS: ESTUDO DE CASO EM ÁREA ADJACENTE AO LIXÃO DA ESTRUTURAL, BRASÍLIA – DF
Authors: MOURA Florença das Graças , CAMPOS José Eloi Guimarães , COSTA Ricardo Avelino
Published: July 2024

RESUMO - Os resíduos sólidos podem ser fonte de metais pesados que afetam os solos. A capacidade de adsorção de cátions e ânions pelos solos depende das características físicas do meio, das concentrações dos elementos em solução, das cargas do complexo de troca e do pH. O objetivo desse trabalho foi analisar o comportamento químico de um Latossolo localizado em uma área adjacente ao Lixão da Estrutural, Distrito Federal, a partir da elevação do pH com a adição de pó de dolomito. Foram realizadas análises químicas de três conjuntos de amostras do solo, uma amostragem previa a adição do pó de dolomito e duas posteriores (após três e 12 meses). Para interpretação dos dados, foram realizadas análises individuais dos teores médios dos elementos, análise de correspondência com remoção do efeito do arco (DCA), análise de componentes principais (PCA) e teste estatístico de Mann-Whitney. Tais análises evidenciaram que a adição do pó de dolomito gerou aumento do pH e alteração dos teores dos elementos constituintes do solo e que as variações dos teores foram significativas ao longo de todas as campanhas de amostragem, indicando que o pH é um fator importante no controle de contaminação dos solos.
Palavras-chave: Lixão da Estrutural. Latossolos. pH. Geoquímica de solos. Geoestatística.
 
ABSTRACT - Solid waste can serve as a source of heavy metals that affect soils. The adsorption capacity of cations and anions by soils depends on the soil physical characteristics, the concentrations of elements in solution, the charges of the exchange complex, and the soil pH. The objective of this work was to analyze the chemical behavior of a Latosol located in an area adjacent to the Estrutural Landfill, Federal District - Brazil, from the increase of pH with the addition of dolomite powder. Chemical analyses were performed on three sets of soil samples, one sampling prior to the addition of the dolomite powder and two subsequent samplings (after three and 12 months). For data interpretation, individual analyses of the average element contents, detrended correspondence analysis (DCA), principal component analysis (PCA) and Mann-Whitney statistical test were conducted. These analyses revealed that the addition of dolomite powder increased the soil pH and altered the levels of its constituent elements significantly across all sampling campaigns, indicating pH as a crucial factor in controlling soil contamination.
Keywords: “Lixão da estrutural”. Latosols. Ph. Soil Geochemistry. Geostatistics.
Pengembangan Pop-Up Book Digital untuk Meningkatkan Pemahaman Siswa pada Materi Kegiatan Ekonomi Kelas IV SD
Authors: Maulifia Rizky Rindayu , Hanifah Nurdinah , Syahid Aah Ahmad
Published: July 2024

Penelitian ini dilatarbelakangi oleh siswa yang cenderung mudah jenuh dalam belajar dan tidak menaruh perhatian kepada materi yang sedang diajarkan. Hal tersebut terjadi karena kemampuan guru dalam menggunakan media pembelajaran yang terbilang kurang mumpuni. Guru lebih banyak menggunakan media pembelajaran konvensional dan tidak memanfaatkan perkembangan digital. Dengan demikian, tujuan dari penelitian ini adalah untuk menganalisis kebutuhan, merancang, mengembangkan media pembelajaran digital, khususnya Pop-up Book Digital dengan melakukan uji kelayakan yang dievaluasi oleh para ahli, meningkatan pemahaman siswa dan mengetahui umpan balik dari pengguna. Metode penelitian yang digunakan adalah Research and Development (R&D) dengan menerapkan prosedur ADDIE yang memiliki lima tahapan, yaitu analisis, desian, pengembangan, implementasi dan evaluasi. Berdasarkan hasil penelitian, evaluasi kelayakan media dilakukan oleh tiga ahli, yakni ahli materi memberikan skor sebesar 94%, ahli media memberikan skor sebesar 94% dan ahli praktisi memberikan nilai sebesar 93%. Uji coba produk ini dilakukan di SDN Periuk 1 Tangerang dengan melakukan tiga kali pertemuan, yaitu pretest, treatment dan posttest. Berdasarkan hasil tes pemahaman tersebut menunjukkan bahwa terdapat peningkatan pemahaman siswa dengan menggunakan media Pop-up Book Digital dalam pembelajaran. Media Pop-up Book Digital mendapatkan tanggapan positif dari siswa, yakni dengan memperoleh sekor sebesar 86,4% dengan kategori sangat baik melalui lembar angket tanggapan siswa.
Mehrphasiges Blutersatzfluid zur Quantifizierung komplexer Blutströmungen für Particle Image Velocimetry Messungen
Authors: Winkler Christina Maria
Published: July 2024

In dieser Arbeit werden mehrphasige Blutersatzﬂuide entwickelt, die für die Quantiﬁzierung von Blutströmungen mittels Particle Image Velocimetry (PIV) eingesetzt werden können. Die Herausforderung liegt in der Nachbildung der elastischen 7 μm großen Erythrozyten. Diese werden durch das natürliche Hydrogel Agarose und dem Photopolymer NOA60 ersetzt. Insgesamt können drei verschiedene Blutersatzﬂuide erfolgreich hergestellt werden, darunter künstliches Plasma aus einer Glycerin-Wasser Mischung, versetzt mit sphärischen und scheibenförmigen Agarose-Erythrozyten sowie mit scheibenförmigen NOA60-Erythrozyten. Die bis zu 29 μm großen Erythrozyten (engl. Beads) werden mit den Verfahren des Elektrosprayings und der Mikroﬂuidik synthetisiert. Zusätzlich werden 9 μm große PIV Seeding-Partikel in die Beads integriert, um sie während der PIV Messungen sichtbar zu machen. Die hergestellten Beads werden mittels Schwimm-/ Sink-Verfahren in die Glycerin-Wasser-Mischung überführt und weisen keinen Ölﬁlm auf, der die PIV Messungen ggf. negativ beeinträchtigen könnte. Die entwickelten Blutersatzﬂuide können mit den Agarosebeads für 24 Tage und mit den NOA60-Beads für mehrere Monate für PIV-Messungen verwendet werden.