bluuebunny/crossref_metadata_2025 huggingface dataset:
ДОСЛІДЖЕННЯ РАЦІОНАЛЬНОЇ КОНСТРУКТИВНОЇ ФОРМИ СТАЛЕВОЇ МАЛОЕЛЕМЕНТНОЇ ФЕРМИ ПРОЛЬОТОМ 18 М
Authors: Налепа О.І., , Філіпчук С.В., , Щолота Т.Ю.,
Published: November 2023

Наведений аналіз роботи малоелементної сталевої ферми прольотом 18 м під навантаженням. Обгрунтований вибір перерізу верхнього поясу у вигляді перфорованого двотавра змінної висоти по довжині поясу.
КОМПАКТНІ СПОРУДИ ГЛИБОКОЇ ОЧИСТКИ СТІЧНИХ ВОД МАЛИХ ПІДПРИЄМСТВ ХАРЧОВОЇ ПРОМИСЛОВОСТІ
Authors: Ковальчук В
Published: November 2023

У статті наведено опис компактних споруд глибокої очистки стічних вод підприємств харчової промисловості. Для очистки стічних вод запропоновано застосовувати виготовлені з металу відстійники-флотатори, комбіновані з аеротенками-відстійниками першого ступеню, а також аеротенки-відстійники другого ступеню, комбіновані з фільтрами з плаваючим завантаженням, що монтуються безпосередньо на майданчику очисних споруд.
ДЕФОРМАТИВНІСТЬ БЕТОНУ НА ОСНОВІ В’ЯЖУЧОГО З ПИЛОМ КЛІНКЕРНИХ ПЕЧЕЙ
Authors: Дворкін Л.Й., , Житковський В.В., , Фурсович М.О.,
Published: November 2023

Стаття присвячена дослідженню впливу складу в’яжучого низької водопотреби, що містить доменний шлак та пил цементних печей, а також технологічних факторів на показники тріщиностійкості, деформації усадки. Показано, що величина модуля пружності бетонів на даних в’яжучих тісно скорельована з їхньою міцністю при стиску і може орієнтовно розраховуватись за допомогою відомих базових залежностей.
ДРІБНОЗЕРНИСТІ ЦЕМЕНТНО-ЗОЛЬНІ БЕТОНИ ПРИДАТНІ ДЛЯ 3D ПРИНТЕРУ
Authors: Марчук В.В., , Дворкін Л.Й., , Макаренко Р.М.,
Published: November 2023

У статті gоказана можливість отримання цементно-зольних дрібнозернистих бетонних сумішей і бетонів, які можуть бути використані як робочі суміші для 3D принтера. За допомогою математичного планування експериментів отримано комплекс поліноміальних моделей властивостей цементно-зольних дрібнозернистих бетонних сумішей для 3D-друку, включаючи час їх придатності для екструзії «відкритий час», структурну міцність, міцність на розтяг при розколюванні та міцність на стиск екструдованого бетону. Встановлено вплив золи-виносу та прискорювача твердіння на комплекс властивостей запропонованого дрібнозернистого бетону.
ДОСЛІДЖЕННЯ ПОЗДОВЖНІХ ШПОНКОВИХ СТИКІВ ПЛИТ ПОКРИТТЯ З ВРАХУВАННЯМ СЕЙСМІЧНОГО НАВАНТАЖЕННЯ НА ВИРОБНИЧИХ БУДІВЛЯХ
Authors: Лучко Й.Й., , Кравець І. Б., , Пенцак А.Я.,
Published: November 2023

виробничої будівлі заводу електродвигунів у м. Ужгороді. Зокрема, дослідження шпонкових стиків плит покриття головного корпусу. На підставі обстеження було виявлено, що у 60-ти змонтованих  плитах відсутні шпонки для сейсмічних районів, що стало причиною обстежень та сформулювати задачі дослідження, які наведені у цій роботі. Були виконані три типи фрагментів стиків і випробувані. Представлена конструкція та міцність бетонів дослідних зразків і швів замонолічування, наведено в табл. 1. Результати порівняння несучої здатності поздовжніх шпонкових і безшпонкових швів дослідних зразків та визначених за нормативними даними, їх порівняння наведені в табл. 2. Також описано випробування дослідних зразків, зокрема появу тріщин і руйнівне навантаження. На підставі аналізу обстежень та експериментальних і розрахункових даних сформульовані відповідні висновки та пропозиції щодо подальшої експлуатації будівлі головного корпусу заводу електродвигунів.
ДОСЛІДЖЕННЯ РАЦІОНАЛЬНОСТІ ВИКОРИСТАННЯ ПЕРФОРОВАНИХ ДВОТАВРІВ ЗМІННОЇ ЖОРСТКОСТІ В СТАЛЕВІЙ МАЛОЕЛЕМЕНТНІЙ ФЕРМІ
Authors: Налепа О.І., , Філіпчук С.В., , Мисливий Т.А., , Крейч М.М.,
Published: November 2023

Наведений аналіз роботи малоелементної сталевої ферми прольотом 18 м під навантаженням. Обгрунтований вибір перерізу верхнього поясу у вигляді перфорованого двотавра змінної висоти по довжині поясу.
АНАЛІЗ МОЖЛИВОСТІ ЗМЕНШЕННЯ ВИТРАТ НА ІТП ГУРТОЖИТКУ №4 НУ «ЗАПОРІЗЬКА ПОЛІТЕХНІКА» В МІСТІ ЗАПОРІЖЖЯ
Authors: Шлянін О.С. , Петренко К.М. , Гарбар В.Я. , Назаренко О.М. , Іщенко О.Л.
Published: November 2023

Питання енергозбереження в житловому фонді - найбільш актуальне, оскільки стосується буквально всіх і кожного. Житловий фонд – це майже 80% усіх будівель та споруд, і енергоспоживання житлових будівель – це 23% первинної енергії, що споживається в країні. У багатьох випадках можливо уникнути схеми теплопостачання через ЦТП до прямого включення будівель до теплових трас через ІТП. При цьому квартальні теплові мережі будуть більше не потрібні, що забезпечить допоміжну теплоекономію і грошових витрат.

Вимоги, що висуваються на сьогоднішній день до якості та енергоефективності об'єктів житлового та соціально-побутового значення, диктують необхідність включення до складу проекту сучасних підходів до контролю та управління інженерними мережами.

Основними ознаками інженерних систем є максимальна автоматизація процесу, можливість віддаленого контролю та відповідно ефективне енергозбереження.

В Україні актуальними питаннями залишаються зменшення використання енергоресурсів, які доводиться постачати та закуповувати з інших країн, збільшення енергоефективності будівництва, зменшення викидів вуглекислого газу та ефективного використання теплоти у існуючих будинках, особливо старої забудови. Саме останній проблемі присвячено ця стаття. Одним із шляхів її вирішення є впровадження автоматизованих індивідуальних теплових пунктів для ефективного регулювання теплоспоживання будинку [1]. Метою даної роботи є теоретичні дослідження особливостей експлуатації  ІТП для ефективного регулювання теплоспоживання гуртожитку.
ОСОБЛИВОСТІ ЗНИЖЕННЯ ТЕПЛОПРОВІДНОСТІ ПРИ ТЕМПЕРАТУРНОМУ ВПЛИВІ НА ВОГНЕЗАХИЩЕНУ ТКАНИНУ
Authors: Цапко Ю.В., , Бондаренко О.П., , Цапко О.Ю., , Гулик Ю.Б.,
Published: November 2023

В роботі було досліджено парусинову тканину, вогнезахищену інтумесцентним покриттям. Доведено, що в процесі термічного впливу на тканину проходить процес перенесення високої температури та її загорання. А саме, з наростанням температури густина теплового потоку на необробленій тканині збільшується до значення понад 60 кВт/м2, що достатньо для її займання. Натомість, густина теплового потоку через інтумесцентне покриття на початку термічної дії становила понад 20 кВт/м2, а потім наступив процес утворення теплоізолювального шару пінококсу і значення густини теплового потоку не перевищило 8,2 кВт/м2, що недостатньо для її займання.
Political communication in Chinese history: the influence of confucianism on centralized monarchy
Authors: Budiská Zuzana , Wang Chi
Published: November 2023

The purpose of this article is to analyze the influence of Confucianism on the centralized monarchy in Chinese history. This article adopts literature research method and interdisciplinary research method.  Confucianism catered to the centralization of the monarchy in Chinese history.
Video podcast as alternative education media of Borobudur temple campaign during pandemic COVID-19
Authors: Kasatriyanto Bambang , Wibowo Arif Ardy , Nashir Roziani Mat
Published: November 2023

COVID-19 pandemic changes all aspects of human life. Various adaptations need to be carried out by the community, and communication must be adaptive in making these adjustments. The use of Borobudur Temple, either in tourism or education, was also affected by this pandemic. The Borobudur Conservation Center, as one of the managers of Borobudur Temple, initiated a new way of publishing and educating the public. Through the YouTube video podcast BUSUR, the Borobudur Conservation Center tries to take advantage of the new publication model as an effort to keep educating the public about Borobudur Temple. This analysis aims to determine how the public responds to alternative media called BUSUR video podcast made by the Borobudur Conservation Center. Community response is measured based on the number of subscribers and views count on BUSUR video content uploaded. Based on the data obtained, data will describe it using a qualitative descriptive approach. The research includes collecting various data from relevant sources. Data collection was carried out through observation. Then select and analyze data. Then end by making conclusions from the results obtained. Based on this study, the results obtained shows that the BUSUR podcast's video content received an excellent public response. By the data, there is an addition of 2490 subscribers and 35,000 video podcast screenings throughout 2020. Based on this analysis, the BUSUR video podcast as an alternative media to introduce Borobudur Temple to the public is very successful because the theme of cultural heritage still gets quite a lot of attention from the crowd.
A critical discourse analysis on Jokowi and Prabowo’s tweets during 2019 presidential election
Authors: Santoso Dwi , Wardani Anggita Dyah Kusuma
Published: November 2023

This paper aims to present critical discourse analysis on Jokowi and Prabowo's tweets during the 2019 presidential election. This paper will focus on critical discourse analysis, especially on the discourse structure of Jokowi and Prabowo's tweets and the communication strategies used by Jokowi and Prabowo during the presidential election. This research uses qualitative methods. The data obtained by the researcher comes from tweets written by Jokowi and Prabowo during the 2019 presidential election campaign. The data collection method used is the observation method by observing Jokowi and Prabowo's Twitter accounts. After collecting the data, the researcher classified the discourse structure using Van Dijk's discourse analysis concept in Jokowi and Prabowo's Tweets. The results of this study found elements of macrostructure (theme), superstructure (scheme), and microstructure consisting of semantic elements (background, detail, intention, presupposition), syntax (sentence form, coherence, conditional coherence, distinguish coherence, disavowal, pronoun), stylistic elements (lexicon) and rhetorical elements (graphology and metaphor) in tweets written by Jokowi and Prabowo. Furthermore, Jokowi and Prabowo used strategic communication campaign stage 3, "Pramodel," during the presidential election. Joko Widodo used photos and videos of his story; meanwhile, Prabowo Subianto had much interaction with his Twitter followers.
Indonesian government crisis communication facing coronavirus pandemic
Authors: Masduki Anang , Niu Panqiang , Yana Maria Effi
Published: November 2023

Many Indonesian officials have joked about the coronavirus outbreak. The Indonesian government has come to a point, namely crisis communication. With qualitative descriptive research, with data sources from scientific journals, articles from experts and intellectuals related to coronavirus, mass media news, and other relevant information. Analysis using triangulation techniques. This paper aims to reveal the communication side of the government's crisis and see society's reality in responding to information conveyed by Indonesian government agencies. As a result, the communication crisis that occurred was preceded by weak government coordination in dealing with the outbreak. Then the result is policymaking that is not correctly aligned and integrated. The government's various information to the public is also different and changing, confusing the community. On the other hand, people through social media convey a lot of information that has not been verified. So that it adds to the complexity of the problem of handling the coronavirus outbreak. In conclusion, informing and providing guidance for the community to deal with pandemics is the key to successful communication during a crisis.
Challenges of internationalization of the Indonesian museum guides' communication skills competency
Authors: Nugraheni Nur Endah , Makhasi Ghifari Yuristiadhi Masyhari , Soelistiyowati Endang , Chen Shu-Chuan , Chen Mei-Ru , Chang Chia-Chen
Published: November 2023

As the front guards, museum guides need to master many skills that support the role of transferring information in the museum to every visitor who comes, both domestic and foreign. More specifically, every museum guide must master foreign language skills in order to serve foreign visitors. Unfortunately, not all museum guides have foreign language skills, especially English, and other supporting skills such as curation, communication, and public speaking. This paper investigates the limited ability of English mastery and other supporting skills of museum guides in two government-owned museums in Yogyakarta, the second tourism city in Indonesia, and how far they affect the internationalization of the two museums as representatives of other museums in Indonesia. This descriptive research uses data collection methods in surveys with questionnaires and in-depth interviews with guides and visitors of the museum, both domestic and foreign. This research found that limited foreign language skills, especially English and other professional skills of museum guides, can slow down the museum's internationalization process in Indonesia.
Socialization of the Covid-19 vaccine for children on the acceptance of parents
Authors: Adhani Abrar , Anshori Akhyar , Nasution Nurhasanah
Published: November 2023

This study aims to find out how the influence of the socialization of the Covid-19 vaccine program on children by the Indonesian government has on the level of parental acceptance in Medan City. The research was conducted using a quantitative approach to 200 parents of elementary school students. Data collection was carried out through questionnaires and data analysis was carried out by testing hypotheses through t-test and f-test and the coefficient of determination. The results of the study found that the outreach carried out by the government about the benefits of the Covid-19 vaccine for children was not effective. This can be seen from the results of the coefficient of determination test, whether there is a level of trust of respondents in the information on the Covid-19 vaccine and whether there is a child's behavior in implementing the health protocol which is carried out simultaneously. regarding the respondent's attitude regarding Covid-19 vaccination for children, the respondent's acceptance rate was 14.1%. This shows the failure of the Indonesian government in socializing the benefits of the Covid-19 vaccine for children in efforts to prevent Covid-19.
A semiotic intertextual analysis of beauty influencers' communication strategies on youtube: uncovering meaning and influence by using Pierce's framework
Authors: Wardhani Ariani , Hasan Hanisa
Published: November 2023

This research aims to conduct a semiotic intertextual analysis of beauty influencers on YouTube. Specifically, the study centers on two prominent beauty influencers, Andra Alodita, and Kornelia Meilinda, and their strategies for effectively promoting recommended lipstick products. The research was conducted employing a qualitative approach, utilizing Peirce's semiotic theory. The findings reveal that beauty influencers strategically employ visual elements to convey meaning and captivate viewers' attention. Both Andra Alodita and Kornelia Meilinda meticulously craft their content, considering factors such as color schemes, backgrounds, and object placement. They adopt distinct approaches to reviewing lipstick products tailored to diverse audiences and preferences. This multiplicity of perspectives enhances the complexity of semiotic elements within beauty influencer content and broadens the spectrum of meanings conveyed to viewers. Furthermore, the findings underscore the significance of semiotic intertextuality as a potent tool for beauty influencers to shape meaning, influence perceptions, and resonate with their extensive audience. These findings offer valuable insights for marketers, brands, and content creators seeking to leverage semiotics' potential in shaping beauty trends and consumer behavior.
Tourism and education intersection: cultural reproduction of Osing community in the Angklung Caruk music festival
Authors: Karsono Karsono
Published: November 2023

Music festivals are social and cultural events mostly seen as activities to present artistic expressions for the audience to enjoy. If it is investigated closely, the presentation of work at festivals is the final culmination of training and learning, both of which are essential elements of the educational process. This research aims to examine and show that music festivals have educational elements, even in the context of tourism interests. The music festival studied was the Angklung Caruk Festival, a type of traditional music from the Osing community. The festival competes for musical skills between student angklung groups in Banyuwangi, East Java. The research uses ethnographic methods to discover and explain the intersection between festivals' education and tourism dimensions. Data collection uses participant observation techniques, interviews, document study, and documentation. Data analysis uses an ethnographic model, including domain analysis, taxonomy, components, and cultural themes. The research results show that the Angklung Caruk music festival is an arena for competition in the beauty of musical works between student groups to achieve victory. This competition has become a tourism commodity packaged under the title Banyuwangi Festival. To present their best musical works, each angklung group receives intensive and profound education from professional musicians, with the support of the school, government, and parents. Thus, the Angklung  Caruk Festival is an arena for reproducing Osing traditional music culture which has an economic and educational dimension. It has an impact on strengthening the identity and social repositioning of the Osing community in the present and future.
Clientelism of the Idea of Young Voters in Creating Substantial Democracy in the 2024 General Election
Authors: Rahmaddian Rahmaddian , Andika Rio , Harahap Muda H , Yusri Arienaldi , M. Hafiz Al Habsy  , Arizal Arizal
Published: November 2023

As a tactical step away from the concept of democracy, general elections in Indonesia are always faced with the practice of political clientelism.These problems are certainly a warning of the death of substantial democracy. Amid these threats, the 2024 general election has a different vote map from previous periods, where the proportion of young voters exceeds 50% of the national vote. This study aims to see the potential role that young voters can play in the 2024 general election to create substantial democracy. This article is a literature study through collecting library data, reading, recording, and processing research materials. In general, this article finds that young voters have a fairly high level of concern for environmental and climate issues after the issue of corruption. In particular, this article shows that climate and environmental issues can become a political narrative that encourages the creation of substantial democracy in the 2024 general election. In the pattern of political clientelism, the 2024 general election can form substantial democracy through the propositions of young voters and their interests, which will form a political narrative based on ideas.
The Juridical Impact of the Implementation of the Paradigm Regarding the Determination of the National Capital (IKN) of the Archipelago as an Asymmetric Region
Authors: Ayyubi Manggala , Perwira Indra , Abdurrahman Ali
Published: November 2023

The relocation of the National Capital (IKN) of the archipelago to Kalimantan reaped pros and cons from the community. However, as a democratic country, when the State has decided to move the National Capital (IKN) of the archipelago with a democratic process through law, all components of the nation should support it. The Indonesian nation needs to minimize the excesses of moving the National Capital (IKN) of the Archipelago. There is no single decision that satisfies all people, but decisions that provide greater benefits to the Indonesian nation must be supported as a form of love and devotion for the Unitary State of the Republic of Indonesia in 1945. The results showed that and obstacles in determining the National Capital (IKN) of the archipelago as an asymmetric area as described in the discussion were imbalance, injustice, regional conflicts, coordination and integration, resource management, inadequate infrastructure, availability of public services, uneven economic development, lack of investment and private sector development, complex interagency coordination, and social and cultural change.  And there is no concrete case study regarding the implementation of the National Capital (IKN) of the archipelago as an asymmetric area because this plan is still in the planning and discussion stage.
A concepção e o fim de uma escola inovadora
Authors: Tavares Fernando Gomes de Oliveira
Published: November 2023

A construção deste ensaio se apoia no discurso de diversos agentes escolares e na utilização de documentos institucionais para narrar a origem, o desenvolvimento e o fim da Escola Projeto Âncora. Apresento os bastidores, esforços e percalços para a criação de uma escola com práticas educacionais inovadoras que, após enfrentar sérios problemas financeiros, chegou ao fim no ano de 2020. Por fim, reflito sobre os obstáculos que uma instituição escolar pode enfrentar em seus intentos de inovação.
JIWA KEWIRAUSAHAAN DAN INOVASI PRODUK PADA IKM KERUPUK RAMBAK DI BANGSAL MOJOKERTO
Authors: Wahyuningsih Roy
Published: November 2023

Maintaining an enterprise's success requires increasing the entrepreneur's spirit. The enhanced entrepreneurial spirit, combined with improved product innovation, will benefit IKM's operations in the Mojokerto district's Bangsal Village. The purpose of this study is to determine the impact of the entrepreneurial spirit and product innovation on the success of the Rambak Crackers IKM Business in Bangsal Village, Mojokerto Regency. This study takes a quantitative method. A saturated sample of 73 owners Rambak Crackers IKM Business in Bangsal Village was used for sampling. Methods of data collection include observations, interviews, questions, and documentation.Double regression analysis was employed in this study, which included descriptive statistical analysis, validity tests, reliability tests, classical assumption tests, double linear regression analyses, hypothesis tests, and determination coefficients. The results of the study show that there is an influence of an entrepreneurial spirit on the success of the rambak crackers IKM business; there is an influence of product innovation on the success of the rambak crackers IKM business; and there is the influence of the entrepreneurial spirit and product innovation on the success of the rambak cracker IKM business in the village of Bangsal, Mojokerto Regency
ANALISIS ONLINE CONSUMER REVIEWS DAN GREEN PRODUCT TERHADAP PURCHASE DECISION MELALUI TRUST SEBAGAI VARIABEL INTERVENING
Authors: Putri Yessi Anggraeni , Lukitaningsih Ambar , Fadhilah Muinah
Published: November 2023

In this study, trust will be used as a mediator to examine the elements that affect consumers' decisions to buy skin care goods at Sociolla. Quantitative research methodology is employed. 100 Sociolla consumers who bought Sukin goods in Indonesia are included in this study. Questionnaire-based data collection where answers are rated on a likert scale. Descriptive statistical analysis and inferential statistical analysis (SEM) based on variance, including the Measurement Model Indicator Test and Fit Model Test, are included in the data analysis process. testing of hypotheses using internal model testing findings. Based on the results of the analysis can be concluded that online customer reviews have a positive impact on consumer trust Sociolla, Green product has a positive effect on the trust of consumers Sociolla. Trust has no positive influence on purchase decisions, Online customer reviews have no positive impact on purchasing decisions. Green products have a positive impact on purchasing decisions. Trust variables do not play a role in measuring the influence of online customer reviews on consumer purchase decisions at Sociolla. Trust variables do not play a role in influencing the influence of green products on purchasing decisions at Sociolla.
PENGEMBANGAN MEDIA PEMBELAJARAN KOTAK DAN KARTU MISTERIUS UNTUK MENINGKATKAN HASIL BELAJAR
Authors: Nasiyah Nasiyah , Mariatun Ika Lis , Sholeh Yusrianto
Published: November 2023

Education is always developing and can be seen from the various findings and the increasing components of the existing education system. The learning outcomes obtained by students are a reflection of the learning process with the learning model and learning media used. The purpose of this study was to develop learning media for mysterious boxes and cards in the Economics subject of Class XI at Nurusshaleh High School. The type of research used is Research and Development using procedures developed by Brog and Gall. The steps used are: Analysis and potential problems, Data Collection, Product Design, Design Validation, Design Revision, Product Testing. The Material and Media testing phase is carried out by media experts. The data in this study are in the form of qualitative and quantitative data. The research instrument was a questionnaire on student learning motivation and a questionnaire on the assessment of mysterious boxes and cards by experts. Based on the development obtained an average of the validation of material experts 29,5, media experts 9,625, learning practitioners 10,265 and student responses with an average of 11,625, learning outcomes obtained from an average pretest score of 52,5 an average posttest score of 76,1. Based on the results of the research that has been done, it means that the mysterious box and card media are in the good category and are suitable for use in class XI SMA Nurusshaleh.
ANALISIS KEPUTUSAN PEMBELIAN PRODUK “LELONG” PADA MAHASISWA PENDIDIKAN EKONOMI FKIP UNIVERSITAS TANJUNGPURA
Authors: Nurhanida Nurhanida , Witarsa Witarsa , Budiman Jumardi , Okianna Okianna , Kuswanti Heni
Published: November 2023

One of the products that students are interested in today is the products of imported used goods that are often referred to as "shell". The study is aimed at analyzing the purchasing decisions of retail products in FKIP University of Tanjungpura Economic Education Students. Research approach using qualitative and case study research methods. The data source used is the primary source. The sampling technique uses Purposive Sampling where samples are selected based on specific considerations. The informants of this study are students of economics education force 2019 - 2021 who have purchased clothing products at auction at least 3 times. Data collection techniques are interviews, literature, and observation. Data analysis methods include data reduction, data presentation, conclusion withdrawal. The results show that the basic aspects of consumer behavior are the cultural aspects due to foreign fashion; the social aspects are the products of clothing auctions presented by close relatives; the psychological aspects with a simple, fashionable and economical lifestyle. While the dimension of consideration of the purchase decision is the selection of products with detail in terms of quality and price; the choice of different brands has different quality characteristics of materials and models; complete store / location and friendly service; time of purchase without planned, make a purchase when looking at a good auction product; the number of purchases vary with the amount of purchase between Rs5,000-Rp200,000.
ANALISIS PERTUMBUHAN DAN STRUKTUR EKONOMI MAKRO DI KOTA BANDUNG
Authors: Nahwan Darwin
Published: November 2023

Bandung has become an important center for creative and technology industries in Indonesia. The existence of leading universities, research centers, and business incubators has formed an innovation ecosystem that encourages the birth of startups and technology companies based in this city. Along with increasing challenges and opportunities in a rapidly changing global environment, a strong and developing economic sector is a vital key in ensuring the country's sustainability and prosperity. This study aims to analyze the growth and macroeconomic structure in the city of Bandung. The research method used is quantitative. Research data comes from the Central Bureau of Statistics and local government reports, to identify patterns and trends in urban economic development. Analysis shows that the city of Bandung has experienced rapid economic growth in the last few decades. The creative and technological industries, as well as tourism, are the main drivers of economic growth. The activities in Bandung in relation to the economy of West Java throughout 2019-2022 are the area of exchange, accommodation and cafes as well as the areas of communication and conversion, because with the presence of development (+) and commitment (-) is actually meant with the assumption that this movement expands its commitment will be an outstanding area
Influence of the composition of the cumulative lattice during thermal diffusion chromiing on the depth of the diffusion layer
Authors: Shaburova N. A.
Published: November 2023

Presents the results of experiments on improving the technology of thermal diffusion chromium plating of structural steels through the use of an internal emission field created in the technological backfill during heating. To create a field in the separating part of the technological backfill, aluminum oxide was completely replaced by mixtures of two compositions: a mixture of scheelite (CaWO4) and serpentine (Mg3Si2O7); a mixture of scheelite (CaWO4), serpentine (Mg3Si2O7), MgO, dicalcium silicate (γ-2•CaO•SiO2). The choice of these materials was based on the results of preliminary experiments on measuring the thermionic current in them. Saturation of samples of steel 35CrNi2-3 with chromium was carried out at a temperature of 1000°C for 24 hours. For both variants of technological fillings, the ab-sence of sintering and good knockout of parts were noted. The chemical composition of the diffusion layer on metal samples was controlled using a JEOL JSM-6460LV universal scanning (scanning) electron microscope. The micro-hardness of the coatings was measured using an FM-800 microhardness tester. The results show that the additional use of cumulative lattices of nickel and nichrome for thermal diffusion chromium plating provides an increase in the depth of chromium diffusion by 1.5 times when saturated in the backfill of the same composition. In this case, the lattice material has little effect on the depth of chromium diffusion, but it influences the intensity of surface microalloying with nickel. The electron yield work of nichrome X20H80, equal to 4.5 eV, has been determined. It was found that the hardness of the diffusion layers formed on the surface correlates with the content of chromium and nickel in them. The hardness of the chrome layer is 790±10 HV and 820±10 HV, using nickel and nichrome cumulative lattices, respective-ly. In the case of saturation without grids, the hardness is 50 and 20 HV respectively lower.
Quantifying the Environmental Impact: A Comparative Analysis of Consensus Algorithms in Blockchain for Carbon Footprint Reduction and Mitigating Climate Change
Authors: Ali Mohanad , Jaber Tanya
Published: November 2023

The rapid rise of blockchain has stirred up a lot of interest lately. It's not just about cryptocurrencies anymore; people are excited about how it could help with big global issues, like climate change. This scientific paper is like a detective story. It's diving deep into the inner workings of consensus algorithms in blockchain systems, the decision-makers of the digital world. To figure out how these algorithms affect the environment, especially their role in carbon footprint, and to see if they're actually doing a good job at helping us deal with climate change. We're focusing on the well-known ones like Proof of Work (PoW), where it's all about computational skills, Proof of Stake (PoS), which puts a spotlight on ownership, and Delegated Proof of Stake (DPoS), a system where only a few get to make the calls. And the emerging consensus mechanisms.
How Customer Engagement Leads to Word-of-Mouth and Continuance Intention? The Mediating Role of Satisfaction
Authors: Burhanudin Burhanudin , Windy Raden Roro , Bokhari Syed Muntasir Husain
Published: November 2023

With active participation from halal tourism visitors, managers can comprehend visitors’ needs and expectations. This information can be utilized to enhance services and adapt to tourism requirements. The purpose of this study is to examine the effect of customer engagement on satisfaction, as well as its effect on both continuance intention and word-of-mouth (WOM). Additionally, this study examines the mediation of satisfaction on the effect of customer engagement on continuance intention and the effect of customer engagement on WOM. A survey was conducted to test these effects, involving 250 visitors of Al-Aqsa Holy Tower Mosque, Kudus, Indonesia. Structural equation modeling was employed to analyze the data in this study. The analysis results reveal that customer engagement influences satisfaction, which subsequently affects WOM and continuance intention. In addition, satisfaction mediates the effect of customer engagement on continuance intention and the effect of customer engagement on WOM. These findings indicate that tourism managers can leverage customer engagement to sustain the development of their tourism industry.
Az Operation Unified Protector a máltai légi navigációs szolgáltató szemszögéből
Authors: Paulov Attila
Published: November 2023

A háborús konfliktusok minden esetben hatást gyakorolnak a légi navigációs szolgáltatókra közvetlen és közvetett módon egyaránt. Napjainkban különösen aktuális egy szomszédos országban zajló konfliktuson keresztül vizsgálni a légi navigációs szolgáltatás ellátását, felvázolni annak komplexitását, nehézségeit és egyben a polgári-katonai együttműködésben rejlő lehetőségeket. Jelen tanulmányomban a máltai légi navigációs szolgáltató OUP-műveletben való szerepének elemzésére vállalkoztam, bemutatva egyben a szigetország légi közlekedésének rövid történetét, valamint légiforgalmi környezetét.
SDR mint lehetséges drónzavaró eszköz
Authors: Varga Péter János , Baross Márk Tamás , Wührl Tibor
Published: November 2023

Napjainkban a drónok felhasználása és alkalmazása szinte az életünk minden területén megjelenik. A felhasználási intenzitás növekedése egyre nagyobb, akár katonai, akár civil vonatkozásban. A drón alkalmazása egy bizonyos nézőpontból lehet „hasznos”, az emberiség és társadalom fejlődését elősegítő, és lehet „káros” is. Az adott nézőpontból „hasznos” kategóriába sorolt drónt és annak küldetésteljesítését meg kell védeni, míg a „káros” kategóriába sorolt működését és küldetés-végrehajtását korlátozni kell. Cikkünkben a drónok tájékozódását segítő műholdas navigációs rendszer kiiktathatóságát és zavarhatóságát vizsgáljuk. Vizsgálatainkhoz szoftverdefiniált rádiót (SDR) használunk.
Merevszárnyú drónok üzleti alkalmazásai Magyarországon
Authors: Szilágyi Dávid , Sziroczák Dávid , Fendrik Ármin
Published: November 2023

A drónok vagy pilóta nélküli légi járművek alkalmazása számos területen új fejezetet nyitott a szakmákban vagy iparágakban. A leggyakoribb dróntípus, amelyet a legtöbb feladatra alkalmaznak, a forgószárnyas drón. A merevszárnyú drónok energiahatékonysága azonban néhány alkalmazás esetén előnyösebb lehet, a csökkent manőverezhetőség mellett is. A cikkben egy hazai fejlesztésűmerevszárnyú drónplatform magyar viszonylatban való üzleti alkalmazási lehetőségeit tekintjük át. A világszerte különböző repülőeszközökkel végrehajtott feladatok összegyűjtése és analízise alapján a platform magyar viszonylatban a lineáris struktúrák ellenőrzésére lehet legalkalmasabb. Ezek közül az elektromos távvezetékek, illetve olaj- és gázvezetékek ellenőrzése a leginkábbcélravezető. Legtöbbször ugyanis az egyetlen lehetőség a légi, helikopteres ellenőrzés lehet a nehéz bejárhatóság miatt, amely sokkal költségesebb és kevésbé biztonságos. A helikopterek megvásárlása erre a célra rendkívül költséges, így legtöbbször bérlik erre a feladatra, azonban a drónok beszerzése minden felszereléssel együtt csak ennek töredéke, akár a helikopter beszerzési értékének 10%-a alatt is lehet. A feladat szempontjából a drónos megoldás is a megfelelő szenzorokkal felszerelve ekvivalens adatokkal szolgál. A növényzet benövését, szakadást, szivárgást, törést és hasonló üzemi hibákat ugyanúgy képesek azonosítani.
A szuverenitás klasszikus elméletei a jog tükrében
Authors: Nagy Kristóf
Published: November 2023

Mit takar pontosan a szuverenitás fogalma? Ki tekinthető a legfőbb hatalom alanyának, és hogyan változtak a legfőbb hatalomra vonatkozó nézetek a történelem alakulása során? A fenti kérdések már évszázadok óta foglalkoztatják a társadalomtudományok művelőit, aminek eredményeként a téma kapcsán ez idáig számos tudományos igényű elmélet látott napvilágot. Ahhoz azonban, hogy az abban rejlő ellentmondások okára fény derüljön, szükséges a tárgyalt témakör központi kérdéseit közelebbről is megvizsgálni. Erre figyelemmel bemutatom egyrészt a szuverenitás fogalmának ellentmondásos jellegét, másfelől pedig azt, hogy miként változott annak tartalma az évszázadok állam- és jogfejlődése során. A tanulmány tehát rávilágít azokra a tényezőkre, amelyek révén a korlátozhatatlan szuverenitás felfogása elvezetett az alkotmányos alapokon nyugvó államhatalomig, továbbá górcső alá veszi az említett szuverenitásértelmezések jogi szempontú jellegzetességeit is.
Antenna Systems with Wide-Angle Mechanoelectrical Beam Steering
Authors: Stankovsky A. V. , Polenga S. V. , Strigova Ye. A. , Salomatov Yu. P.
Published: November 2023

Introduction. The active development of satellite communication networks determines the need for new antenna systems for ground terminals. The Sphere Federal program implies the commissioning of new satellite constellations for communication and remote sensing of the Earth. The Skif (providing broadband Internet access) and Express-RV (providing the Internet and communications for Arctic) satellite constellations are not geostationary, thus requiring constant satellite tracking even for stationary terminals. Deflecting structures operating on the principle of quasi-optical beam control make it possible to develop scanning antenna systems for organizing continuous satellite communications.

   Aim. Investigation of various types of dielectric structures for radiation pattern deflection and scanning antenna systems on their basis, as well as identification of a configuration with improved characteristics compared to the ideal structure in the shape of a dielectric wedge.

   Materials and methods. Mathematical modeling, electrodynamic modeling using CAD by the finite element method and the finite integration method, as well as an experimental study of an antenna system prototype in an anechoicchamber by measuring methods in the far-field and near-field of the antenna.

   Results. Electrodynamic simulation was carried out for three types of dielectric structures, analogues of a dielectric wedge, including a structure assembled from various dielectrics of fixed sizes with different dielectric constants; a structure of triangular dielectric plates; and a perforated dielectric structure. In addition, scanning antenna systems based on the presented configurations were analyzed. Radiation patterns were obtained for all structural types for various rotation angles of the deflecting systems. The structure assembled from various dielectrics of fixed sizes with different dielectric constants was found to possess the most optimal characteristics. This structure was used to develop a model for experimental confirmation of the conducted electrodynamic simulation. The maximum tilt angle of the radiation pattern was about 60°, the decrease in the directivity relative to the maximum value was 6 dB; for tilt angles up to 55°, the directivity degradation did not exceed 4 dB, the level of the side lobes did not exceed –12 dB (calculated) and –14 dB (measured).

   Conclusion. The results of studies into various types of structures for quasi-optical beam control of the radiation pattern show the possibility of using these configurations when creating low-profile antenna systems with wide-angle mechanoelectric scanning for organizing satellite communications for both mobile and stationary consumers using medium earth orbit spacecrafts.
Effect of the Configuration and Shape of External Ribs of Sealed Enclosures of Electronic Devices on Heat Removal Efficiency
Authors: Piskun G. А. , Аlexeev V. F. , Stsepchankou A. V. , Popov A. N. , Belikov A. N. , Rybakov D. G.
Published: November 2023

Introduction. Modern computing and electronic devices are constructed on the basis of radio-electronic components, such as processors, graphics processing units, etc. During operation, these components emit tens of watts of thermal energy. Therefore, effective excess heat removal from both semiconductor electronic devices and electronic systems as a whole through the use of passive or active cooling systems represents an important research problem.

   Aim. To study the influence of the configuration and shape of external ribs of sealed enclosures of electronic devices, which use solely passive cooling systems inside, on the efficiency of heat removal from the processor for eachenclosure design under consideration based on their comparative analysis.

   Materials and methods. Simulation experiments were carried out using 3D parametric models of various device types, which were developed in the SolidWorks Flow Simulation software environment. These models differed in terms of configuration of thermal channels formed by the external enclosure ribs.

   Results. The conducted simulation experiments allowed the authors to study the cooling process of processors installed in modern electronic devices. The influence of the configuration and shape of the enclosure ribs on excess heat removal from the processor was studied in a passive cooling mode and when blowing the devices with air moving from above (perpendicular to the cover) or laterally (parallel to the cover) with a gradual increase in a processor power from 10 to 25 W. A ribbed enclosure with passive cooling was shown to ensure a more effective heat removal from a 10 W processor compared to a non-ribbed enclosure (the temperature drop is 4.1 °C). For a 25 W processor, this value comprises 11.01 °C. When blowing the device, the direction (perpendicular or parallel) of air movement significantly affects the cooling efficiency of the heated surface (with a processor power of 45 W, the difference is more than 10 °C).

   Conclusion. The developed 3D models effectively simulate the cooling system of heat-loaded high-power radio-electronic components located in sealed enclosures, due to the implementation of their external ribbing.
Statistical Analysis of Local Extrema in Rough Sea Surfaces Based on Computer Simulation
Authors: Pyko N. S. , Orandarenko E. D. , Bogachev M. I.
Published: November 2023

Introduction. Generalized extreme value (GEV) distributions represent a universal description of the limiting distribution of the normalized local maxima statistics for independent and identically distributed data series. Extreme value distributions are commonly classified into three different types representing different functional forms and thus varying in shape, also known as types I, II, and III. Thus, attribution of some observational data series to a particular type of its local maxima distribution, as well as fitting of the distribution parameters, provides certain information about the laws governing the underlying natural or technogenic process. Radar-based remote sensing techniques represent a ubiquitous tool for analyzing large patterns of the sea surface and determining the parameters of the waves. In turn, understanding the laws governing the extreme values in the rough sea surface obtained from their radar images followed by evaluation of their distribution parameters, depending on the wind speed and direction, as well as the presence of surface currents and swells, can be useful for predicting wave height.

   Aim. Analysis of the functional forms governing the local extreme value distributions in a rough sea surface for the given wind and swell parameters based on computer simulations.

   Materials and methods. For the rough sea surface simulated by an additive harmonic synthesis procedure, the local extreme value distribution was fitted using the least-mean-squares technique. The fitted parameters were then used for their classification according to the three predetermined types.

   Results. Computer simulations of a rough sea surface with combined wind and swell waves were performed. It is shown that the distribution of local maxima in the absence of swell waves could be well approximated by theWeibull (type III GEV) distribution, with the parameters explicitly depending on the wind speed. At the same time, no significant dependence on the sea depth was observed. On the contrary, in the presence of additional swell waves, the distribution of local extrema could be rather attributed to the Fréchet (type II GEV) distribution, with the parameters additionally depending on the angle between the wind and swell waves.

   Conclusion. The laws governing the distributions of local wave extrema in rough seas are in a good agreement with the theoretical GEV approximations, with the distribution parameters being deductible from the key features of the waves. This indicates the predictability of wave height extrema from sea surface measurements, which can be performed based on remote radar observations.
Models for estimation of solar irradiance in Zimbabwe: A statistical and machine learning approach
Authors: Chiteka Kudzanayi , Mwarazi Rejoice , Arora Rajesh , Enweremadu Christopher
Published: November 2023

The present study focused on the statistical development of solar irradiance predictive models for locations with limited solar irradiance measuring equipment. Multiple linear regression models were developed using both measured and satellite corrected meteorological data. The study chose easy to measure and access meteorological data for analysis and modelling. Multicollinearity and correlation analysis were performed to analyse the relationships among the independent and depended variables. Statistical predictive models were developed, and the prediction accuracy of the developed models was analysed using the coefficient of determination (R2) and the Mean Absolute Percentage Error (MAPE). The results revealed a higher performance of the developed models compared to generic empirical models. The prediction MAPE for the three models developed were respectively 0.117 kWh/m2, 0.132 kWh/m2 and 0.044 kWh/m2 for Hg, Hb and Hd. The models also had R2 values of 0.895, 0.972 and 0.993 respectively for global horizontal irradiance (Hg), direct normal irradiance (Hb) and diffuse irradiance (Hd). The developed models outperformed the generic models by a minimum of 5.74%. The study showed that it is more accurate to predict Global Horizontal Irradiance by summing the predicted component of Hb and Hd.