bluuebunny/crossref_metadata_2025 huggingface dataset:
AUTOMATION OF AGRICULTURAL MACHINERY CONTROL PROCESSES
Authors:   Don State Technical University, Rostov-on-Don, Russian Federation, Pleshchenko V.K.
Published: December 2024

The article considers the issue of automating agricultural machinery control processes as a promising area for agricultural development. Trends in further development, advantages, disadvantages and challenges associated with introducing automation into agriculture are discussed. An analysis is made of modern technologies used in automating agricultural machines, such as precision farming and global positioning systems.
USE OF DIGITAL SYSTEMS IN THE MANAGEMENT OF LIVESTOCK FARMS
Authors:   Don State Technical University, Rostov-on-Don, Russian Federation, Chmelev N.S.
Published: December 2024

In the modern world digital technologies become an integral part of many spheres of human activity, including agriculture. In particular, the use of digital systems can significantly improve the efficiency of livestock farm management. Digital systems are a set of technologies and tools that allow to automate processes on the farm and improve control over the condition of animals. This article dissects the types of digital technologies in agribusiness and analyses the use of digital systems in livestock farm management. Examples of the most common farm management and supply systems using digital technologies are given.
INNOVATIONS IN THE MEAT PROCESSING INDUSTRY: HOW TECHNOLOGY IS CHANGING THE APPROACH TO MEAT PRODUCTION AND QUALITY
Authors:   Don State Technical University, Rostov-on-Don, Russian Federation, Fedoseeva K.V.
Published: December 2024

The meat processing industry, like many other industries, is experiencing revolutionary changes caused by the introduction of modern technologies. Innovation not only optimizes production, but also improves the quality of final products, making them safer and more accessible to consumers.
PRODUCT SAFETY IN THE MEAT PROCESSING INDUSTRY: MODERN STANDARDS AND QUALITY CONTROL TECHNOLOGIES
Authors:   Don State Technical University, Rostov-on-Don, Russian Federation, Fedoseeva K.V.
Published: December 2024

In the meat processing industry, food safety is a top priority. Given the growing consumer interest in product quality and safety, as well as strict requirements from government agencies, factories and enterprises must apply modern quality control standards and technologies.
PLANT PROTEINS THAT MIMIC THE TASTE AND TEXTURE OF MEAT
Authors:   Don State Technical University, Rostov–on–Don, Russian Federation, Sarkisian D.S.
Published: December 2024

In this article, we explore and analyze in detail a variety of alternatives to meat products that represent innovative nutritional solutions and can be made from proteins derived from various plant sources. Promising options for replacing traditional meat are carefully considered, including not only popular legumes but also less common but highly valuable plants in terms of protein composition. We pay special attention to the potential of these plant proteins to create products that can not only replace meat in the human diet, but also provide a complete and balanced nutrition.
THE USE OF FAT IN THE PRODUCTION OF COMPOUND FEEDS FOR FARM ANIMALS AND FISH
Authors:   Don State Technical University, Rostov-on-Don, Russian Federation, Konyukhova P.D.
Published: December 2024

The article is devoted to an important aspect of animal husbandry - animal feeding with an emphasis on the use of compound feeds, which are complex diets, taking into account the physiological needs of various animals. In order to achieve high productivity in the agricultural sector, it is necessary to carefully prepare diets, including a variety of components such as fats and vegetable oils.
RESEARCH OF MONITORING PROGRAMS FROM WIALON
Authors:   Don State Technical University, Rostov-on-Don, Russian Federation, Chumakov K.A.
Published: December 2024

In modern industry, there are many ways, data and their analysis, to achieve high efficiency and benefit. Such programs for collecting and storing data can also serve for scientific purposes, because they greatly facilitate the collection, processing and analysis of data, allowing you to automate this process using API software interface technologies. The paper will consider and analyze the monitoring and analysis programs Wialon hosting and Wialon Hecterra. Wialon Hosting is a cloud version of the Wialon GPS / GLONASS monitoring system. It offers wide functionality and flexible configuration options for monitoring transport, location, fuel consumption and other parameters. Wialon Hecterra is a monitoring system for agricultural machinery. It is designed for agribusinesses and allows you to control field work, crop rotation, field processing and other aspects of agricultural activities.
IMAGE ANALYSIS IN AGRICULTURE USING NEURAL NETWORKS AND SAAS: NEW HORIZONS IN PRECISION FARMING
Authors:   Don State Technical University, Rostov-on-Don, Russian Federation, Geogdzhaian T.E.
Published: December 2024

This article presents a neural network-based image analysis approach for agricultural applications, utilizing Software as a Service (SaaS) systems. Our findings demonstrate that analyzing satellite imagery can effectively identify areas in fields requiring additional fertilizer, thereby reducing costs and enhancing overall field productivity.
ANALISIS PENGGUNAN METODE GAMIFIKASI TERHADAP MOTIVASI BELAJAR SISWA
Authors: Muhammad Azman  , Afakhrul Masub Bakhtiar
Published: December 2024

Amification in instruction is picking up notoriety as a strategy to extend understudy engagement and inspiration. The concept includes the application of diversion components, such as focuses, levels, and identifications, into a learning setting to form a more interactive and locks in involvement. Inquire about appears that gamification includes a positive affect on students' inborn inspiration and comprehension of learning materials. Integrator gamification plan, which takes into consideration learning objectives and understudy characteristics, is basic to its successful execution. Whereas gamification offers numerous benefits, challenges in its usage, such as contrasts in understudy reactions to diversion components, too ought to be tended to. This inquire about strategy employments a writing survey to look at thinks about on the usage of gamification, highlighting the significance of suitable plan and a deep understanding of the brain research of inspiration. In conclusion, gamification can be an inventive and viable approach to expanding understudy inspiration to memorize, but requires continuous assessment and alteration in arrange to attain the generally instructive objectives. Assist ponders in different rudimentary instruction settings are required to decide the broader adequacy of gamification.
Analisis Komparasi User Experience Aplikasi M-Tix Versi 5.3.1 Dengan M-Tix Versi 6.0.15 Menggunakan Metode User Experience Questionnaire (UEQ)
Authors: Supriyanto Anatasya Clara , Nabila Rizky Oktadini  , M Rudi Sanjaya
Published: December 2024

Perkembangan teknologi telah mempengaruhi manusia dalam menonton film terutama bioskop. Penggunaan teknologi aplikasi mobile telah meningkatkan proses pembelian tiket bioskop secara online. Salah satu aplikasi yang menerapkan pemesanan tiket online adalah M-Tix. Aplikasi M-Tix telah mengalami beberapa kali pembaruan yang berguna untuk meningkatkan kinerja dan pengalaman pengguna. Dalam penelitian ini dilakukan komparasi dari kedua versi aplikasi M-Tix yakni versi 5.3.1 dan versi 6.0.15 untuk mencari tahu pengalaman pengguna mana yang lebih baik dari kedua versi tersebut. Penelitian ini menggunakan metode User Experience Questionnaire (UEQ). Hasil penelitian didapatkan bahwa aplikasi M-Tix versi 6.0.15 lebih unggul dari M-Tix 5.3.1 dan pada seluruh aspek UEQ didapatkan bahwa kedua versi aplikasi M-Tix memiliki perbedaan signifikan dengan besar signifikansi sebesar 0.000.
Keamanan Cloud Computing di Era Industri 4.0: Systematic Literature Review
Authors: Alkadrie Syarifah Aflia , Fitroh
Published: December 2024

Di era Industri 4.0, cloud computing telah menjadi teknologi kunci dalam mendukung transformasi digital di berbagai sektor industri. Namun, dengan adopsi yang semakin luas, tantangan terkait keamanan informasi dan privasi data juga meningkat. Penelitian ini bertujuan untuk mengeksplorasi strategi keamanan cloud computing melalui pendekatan Systematic Literature Review (SLR). Dengan menggunakan metode PRISMA, 30 artikel terpilih dari database akademik terkemuka dianalisis untuk menjawab empat pertanyaan utama: efektivitas strategi keamanan cloud dibandingkan pendekatan tradisional, peran cloud dalam mendukung keamanan data IoT dan Big Data, serta tantangan penerapan standar keamanan. Hasil penelitian menunjukkan bahwa teknologi seperti blockchain, kecerdasan buatan (AI), dan edge computing dapat secara signifikan meningkatkan keamanan data pada sistem cloud. Dibandingkan pendekatan tradisional, cloud computing menawarkan solusi yang lebih adaptif dan efisien dalam menghadapi ancaman keamanan, terutama pada lingkungan industri yang berbasis IoT. Meskipun demikian, penerapan standar keamanan seperti ISO 27001 menghadapi tantangan, terutama dalam hal sumber daya teknis, kesadaran pengguna, dan interoperabilitas. Studi ini memberikan rekomendasi strategis untuk meningkatkan perlindungan data dan mendukung efisiensi operasional di era Industri 4.0.
Perencanaan Strategis Sistem/Teknologi Informasi pada PT. XYZ dengan Metode Ward and Peppard
Authors: Rahayu, S.T., M.Kom. Sapty , Chanesha Frenzen , Wibisono Yohanes Priadi
Published: December 2024

PT. XYZ merupakan perusahaan distribusi agen suku cadang mesin alat-alat berat. PT. XYZ telah menerapkan Sistem dan Teknologi Informasi (SI/TI) namun implementasi SI/TInya belum terintegrasi satu dengan lainnya, sehingga proses bisnis tidak berjalan dengan maksimal. Hal ini mendorong PT. XYZ untuk memiliki perencanaan strategis SI/TI guna menunjang proses bisnisnya. Penelitian ini menggunakan framework Ward and Peppard yang berfokus pada pembangunan rencana strategis TI yang terintegrasi dengan bisnis organisasi. Penelitian ini mengidentifikasi kondisi lingkungan internal dan eksternal bisnis dan SI/TI perusahaan menggunakan alat analisis meliputi SWOT, Value chain, Balanced Scorecard, Porter’s Five Forces, dan McFarlan Strategic Grid. Hasil rekomendasi strategi SI berupa rekomendasi beberapa aplikasi yang dapat diterapkan yaitu SI HRGA, SI Keuangan, SI Gudang, E-Faktur, website, E-mail, media sosial, E-commerce, dan E-CRM. Rekomendasi berkaitan dengan penyusunan strategi manajemen SI/TI berupa usulan penambahan divisi staf IT, pembagian tanggung jawab pengelolaan aplikasi yang diusulkan, serta penambahan pegawai baru. Rekomendasi penyusunan strategi TI mencakup usulan pemanfaatan cloud computing, otomasi proses bisnis, dan integrasi antar sistem informasi setiap divisi pada perusahaan. Rancangan roadmap pengembangan aplikasi dibuat menjadi skala prioritas yang akan dilaksanakan selama empat semester ke depan.
Evaluasi Penerapan Manajemen Keamanan Informasi menggunakan Indeks Keamanan Informasi (KAMI) Versi 4.2 di Diskominfosandi Kabupaten XYZ
Authors: Rahayu, S.T., M.Kom. Sapty , Nastiti Putri , Gultom Cyril Saulnier Mikanen
Published: December 2024

Manajemen keamanan informasi adalah salah satu upaya untuk melindungi aset informasi yang dimiliki oleh sebuah instansi dari potensi ancaman. Salah satu aktivitas untuk meyakinkan bahwa praktek pengamanan informasi telah dilakukan dengan benar adalah dengan melakukan evaluasi terhadap keamanan informasi. Di Indonesia, instansi-instansi pelayanan publik diwajibkan untuk melakukan praktek pengamanan informasi. Dinas Komunikasi, Informatika dan Persandian (Diskominfosandi) Kabupaten XYZ adalah salah satu instansi pemerintah yang wajib melakukan praktek pengamanan informasi. Selama ini Diskominfosandi Kabupaten XYZ telah menerapkan praktek pengamanan informasi dan telah melakukan evaluasi tahunan dengan menggunakan indeks Keamanan Informasi (KAMI) versi 4.2. Namun hasil evaluasi sebelumnya menunjukkan masih adanya kelemahan terutama di area kerangka kerja keamanan informasi. Upaya perbaikan telah dilakukan namun belum diketahui apakah sudah ada perbaikan dalam indeks KAMInya. Berdasarkan hal tersebut, penelitian ini dilakukan dengan tujuan untuk mengevaluasi kembali praktek pengamanan informasi yang dilakukan dengan Indeks KAMI 4.2. Hasil evaluasi menunjukkan bahwa praktek pengamanan informasi telah mengalami peningkatan, dari skor tingkat kelengkapan 389 pada evaluasi sebelumnya ke 435. Tingkat kematangan indeks KAMI juga meningkat dari I+ sampai dengan II+ menjadi II sampai dengan III. Berdasarkan hasil tersebut diberikan beberapa rekomendasi untuk meningkatkan skor dan level pengamanan informasi.
KESESUAIAN PENULISAN ABSTRAK ARTIKEL JURNAL PADA SCIENCE AND TECHNOLOGY INDEX (SINTA)
Authors: Sudiar Nining , Latiar Hadira , Monika Winda
Published: December 2024

This study aims to evaluate the suitability of scientific article abstract writing with the standard of abstract writing in Lancang Kuning University journals indexed by Science And Technology Index (Sinta). The research methodology is quantitative, including literature search and comparative analysis of Sinta-indexed journal abstracts. The results showed that there were 22 accredited journals with different accreditation levels, ranging from Sinta 2 to Sinta 6. All journals have writing rules or guidelines, but these rules have not been followed or obeyed properly by the authors so that there are still discrepancies in abstract writing. More than half or 78.51% of the discrepancies were caused by the use of language, then 50.12% in the use of word count and 45.30% in the use of keywords. A small proportion of discrepancies, or 12.42%, were found in writing the substance of the abstract.
A importância da Educação Física para os alunos na escola
Authors: Lima Wallace Apicelo , Silveira Sergio Roberto
Published: December 2024

O processo de educação para a formação do ser humano é de vital importância para uma sociedade, portanto a partir deste pontopodemos entender as necessidades do universo escolar, dentre essas temáticas, temos o esporte e a atividade física que se encontrafortemente evidenciada no currículo da educação física. O objetivo geral deste estudo foi analisar a importância da educação física, levando em consideração, questões norteadoras aos princípios da atividade, da educação física escolar e do esporte para os indivíduosque se relacionaram com essa disciplina. O presente estudo foi realizado através de uma metodologia com natureza qualitativa equantitativa oriunda de observação realizada através de aplicação de questionário com 119 pessoas que em algum momento tiveramcontato com a disciplina de educação física. A proposição proposta no estudo apresentou que a educação física através da sua inserçãona escola, no esporte e na atividade física apresentou-se de forma satisfatória, todavia, são necessárias diversas ações para que essarelação aconteça ainda mais de maneira efetiva para benefício da população.
La importancia de la superación docente en la enseñanza del Béisbol Five: Retos y oportunidades
Authors: Borges Primelles Lenier , Primalles Justino Isabel
Published: December 2024

La disposición por elevar la calidad de la clase de Educación Física constituye el deseo del autor en la búsqueda de opciones para garantizar la preparación de los profesores de Educación Física de la enseñanza Primaria, dirigida a perfeccionar el proceso de enseñanza- aprendizaje del deporte Béisbol Five. Por este motivo, la investigación tiene como objetivo: elaborar una estrategia de superación a los  profesores de Educación Física que imparten el programa de Béisbol Five. El diagnóstico realizado a los profesores de Educación Física de la enseñanza Primaria, con la aplicación de métodos y técnicas: la modelación, el análisis de documentos, la observación, la entrevista, la encuesta y el pre-experimento. Como métodos estadístico-matemáticos: las tablas de distribución de frecuencias, el análisis porcentual y las gráficas para el análisis de los datos recopilados a partir de la aplicación de los métodos y las técnicas de carácter empírico, mostró insuficiencias teóricas - metodológicas en los profesores de Educación Física para impartir las clases en el deporte Béisbol Five. La propuesta está diseñada en cuatro etapas. Los resultados finales mostraron la aceptación de la estrategia para la superación y exhibiendo en especial la relevancia en la preparación de los profesores de Educación Física dirigida a perfeccionar el proceso de enseñanza- aprendizaje del deporte Béisbol Five durante las clases de Educación Física.
Correlação entre equilíbrio de membros inferiores e flexibilidade em jovens atletas de futebol feminino
Authors: Silva Yuri Rolim Lopes , Oliveira Cecilia Ramos de , Da Silva Giullio César Pereira Salustiano Mallen , Bastos Larissa Ruiz Garcia Rosa , Costa Dayane Marins , Vale Rodrigo Gomes de Souza , Lima Vicente , Nunes Rodolfo
Published: December 2024

Objetivo foi verificar se existe correlação entre equilíbrio e flexibilidade em jovens jogadoras de futebol feminino.  A amostra foi composta por 20 atletas de futebol feminino, divididas em 2 grupos, o grupo de movimento (GMOV) com 13 atletas e o grupo de flexibilidade (GFLEX) 7, todos das categorias Sub 15 e 17, respectivamente. A coleta foi realizada em 2 dias. No primeiro, avaliação de estatura e massa corporal, testes de flexibilidade com flexímetro, star excursion balance test. No segundo, step-down, step-up e agachamento unilateral. Para o GFLEX, os resultados não apresentaram correlações entre o star excursion balance test e a flexibilidade. Para o GMOV, correlação negativa moderada entre o ângulo de desalinhamento do quadril e o ângulo de desalinhamento do joelho no teste step-up (r=-571; p<0,05); correlação positiva moderada entre o ângulo de desalinhamento do joelho esquerdo no teste de agachamento unilateral e step-down (r=0,594; p<0,05). Não houve correlação entre equilíbrio e flexibilidade de membros inferiores em jovens jogadoras de futebol para o GFLEX enquanto para o GMOV há relação entre os testes de agachamento unilateral e step-down quanto ao desalinhamento dos joelhos, e de desalinhamento de quadril e joelho step-up.
Konsep Arsitektur Berkelanjutan pada Desain Sekolah Alam di Polewali Mandar
Authors: Alfiansyah Muhammad , Alfiah Alfiah , Abdullah Sudarman
Published: December 2024

Sekolah alam adalah salah satu model pendidikan alternatif yang berkembang di Indonesia, berbeda dari sistem pendidikan konvensional. Pendekatan ini bertujuan membantu siswa tumbuh menjadi individu yang memiliki moral yang baik. Berbeda dengan sekolah konvensional yang cenderung berfokus pada pembelajaran di dalam kelas, sekolah alam mendorong siswa untuk belajar lebih banyak di alam terbuka dengan memanfaatkan strategi pembelajaran yang menyenangkan dan berorientasi pada aksi. Melalui pendekatan pembelajaran langsung ini, siswa di sekolah alam menjadi lebih antusias dan bersemangat dalam proses belajar, yang membuat mereka tidak mudah merasa bosan.Tujuan dari penulisan ini adalah untuk merancang Sekolah Alam dengan memanfaatkan konsep arsitektur berkelanjutan, dengan fokus pada pencahayaan, sirkulasi udara, dan penggunaan material yang ramah lingkungan dalam perancangan bangunan. Metode penelitian yang digunakan adalah metode kualitatif, yang bertujuan untuk mendeskripsikan potensi pengembangan sekolah alam yang berkelanjutan dari segi ramah lingkungan. Proses pembahasan dimulai dengan pengumpulan data, yang kemudian dianalisis dan disintesis untuk membentuk sebuah konsep desain. Pengumpulan data dilakukan melalui metode deskriptif kualitatif. Hasil dari perancangan ini mencakup implementasi konsep arsitektur berkelanjutan dengan fokus pada efisiensi pencahayaan dan penggunaan material yang ramah lingkungan dalam bangunan sekolah tersebut.
Arsitektur Healing Environment untuk Rumah Sakit Perawatan Pasien Covid-19 di Makassar
Authors: Mustafa Fajari , Marwati Marwati , Amin Burhanuddin
Published: December 2024

Abstrak_Kesehatan merupakan aspek penting dalam kemajuan kota dan pengembangan sumber daya manusia. Berdasarkan Undang-Undang Pokok Kesehatan No. 9 Tahun 1960 dan definisi WHO tahun 1975, kesehatan meliputi aspek jasmani, mental, dan sosial. Kota Makassar menghadapi tantangan besar dalam menyediakan layanan kesehatan, terutama dengan meningkatnya kebutuhan rujukan ke rumah sakit. Pandemi Covid-19, yang disebabkan oleh virus Corona, pertama kali ditemukan di Wuhan, China, pada Desember 2019 dan menyebar cepat ke seluruh dunia, termasuk Indonesia. Pandemi ini memerlukan langkah mitigasi, salah satunya pembatasan sosial sesuai Peraturan Pemerintah Nomor 21 Tahun 2020. Penelitian ini bertujuan merancang rumah sakit khusus perawatan pasien Covid-19 di Makassar dengan pendekatan arsitektur healing environment. Metode penelitian meliputi analisis tapak, pengumpulan data primer dan sekunder, serta sintesis konsep berbasis elemen desain yang mendukung pemulihan pasien. Hasilnya, desain rumah sakit mencakup pencahayaan alami, ventilasi optimal, dan integrasi elemen alam, yang terbukti meningkatkan kenyamanan fisik dan psikologis pasien serta mempercepat proses penyembuhan.
A new chaotic hyperjerk system with four quadratic nonlinearities, its bifurcation analysis, multistability, circuit design and complete synchronization design via active backstepping control
Authors: Vaidyanathan Sundarapandian , Sambas Aceng , Moroz Irene M. , Aruna Chittineni , Mohamed Mohamad Afendee , Sundaram Arun
Published: December 2024

In this research work, we propose a new four-dimensional chaotic hyperjerk system with four quadratic nonlinearities. We carry out a detailed bifurcation analysis and derive conditions for the existence of a Hopf bifurcation for the new hyperjerk system. A linear analysis shows that there is only a unique trivial equilibrium state, whose stability depends solely on the parameter p. The only bifurcation possible is a Hopf bifurcation when p = 2. This is verified from bifurcation transition diagrams.We derive new results showing multistability and the existence of coexisting attractors for the new chaotic hyperjerk system. Using MultiSim, a new electronic circuit is designed for the new chaotic hyperjerk system with four quadratic nonlinearities. Finally, we present a control application for the proposed chaotic hyperjerk system with four quadratic nonlinearities. Using active backstepping control, we design a new controller that achieves complete synchronization for the master-slave chaotic hyperjerk systems with four quadratic nonlinearities.
Optimal control problems on the co-adjoint Lie groupoids
Authors: Haghighatdoost Ghorbanali
Published: December 2024

In this work we study the invariant optimal control problem on Lie groupoids.We show that any invariant optimal control problem on a Lie groupoid reduces to its co-adjoint Lie algebroid. In the final section of the paper, we present an illustrative example.
Geodesic path planning characteristics of the reconfigurable 1-S robot workspaces for hyperbolic, elliptical, and Euclidean geometries
Authors: Sahin Haydar
Published: December 2024

The path-planning strategies are implemented by establishing the Riemann curvature tensor and geodesic equations of the 1-S robot workspace. This paper’s originality lies in formulation of the parametric 1-S robotworkspace for path planning, which is based on the differential geometry of the geodesic and Riemann curvature equations. The novel results in defining the path plan with diffeomorphic and expandable trajectories with zero and negative sectional curvatures are encouraging, as shown in the research article’s result sections. The constant negative, constant positive, and zero sectional curvatures produce hyperbolic, elliptical, and Euclidean geometries. The workspace equation, derived using Lie algebra, defines the parameters of ��1, ��2, ��3, and ��4 to obtain the shortest distances in path planning. The geodesic equations determine the shortest distances in the context of Riemann curvature tensor equations. These parameters from the workspace equation (��1, ��2, ��1, ��1) are used in the geodesic and Riemann curvature tensor equations. The results show that one needs to choose the most convenient parameters of the mechanism for path-planning capabilities. Both the topology of the mechanism, which is 1-S herein and the parameters of the workspaces should be selected for the pre-defined trajectories of the path planning, as shown in the results. The reconfigurable robots have many mechanism topologies to transform.
On practical ℎ-observer design for nonlinear non-autonomous dynamical systems with disturbances
Authors: Alaya Manel , Damak Hanen , Taieb Nizar Hadj , Hammami Mohamed Ali
Published: December 2024

In this paper, a particular form of practical ℎ-observers for piecewise continuous Lipschitz, one-sided piecewise continuous Lipschitz systems and quasi-one-sided piecewise continuous Lipschitz systems is extended to nonlinear non-autonomous dynamical systems with disturbances. With the notion of practical ℎ-stable functions, the obtained state estimates are used for an eventual feedback control, and the practical separation principle is tackled. An example is given to show the applicability of the main result.
Kinetics of Solidification and Crystallization of Liquid Axial Zone of Fe-C Alloys in Cylindrical Molds
Authors: Khrychikov V. , Semenov O. , Aftandiliants Y. , Gnyloskurenko S. , Semenova T. , Meniailo H.
Published: December 2024

According to the results of digitization of the experimental studies carried out in the past concerning Fe-C alloys solidification in cylindrical molds of castings with a carbon content of 0.04%, 0.1%, 0.4%, 0.93%, 1.42%; 2.44%, 3.28%, 4.45%, 4.83% and their subsequent interpolation in the range of 0.04 ÷4.83% С there were obtained the curves of the advancement of the pour point, liquidus and solidus in the coordinates of the relative thickness of the solidified metal layer x/R and the parametric criterion τ/R2. Their usage is proposed for the development of modes of physical and chemical influence on the liquid metal in the axial zone of the casting after solidification of its calculated layer. Calculation of the mass of modifiers or deoxidizers for introduction into the axial zone was performed in relation to the total mass of metal in the liquid and liquid-solid zones of the casting. The technique for calculating the mass and time of introduction a graphitizing modifier into the axial zone of rolling rolls made of hypereutectoid steel with 1.7% C is proposed to reduce the negative impact of cementite, chromium and molybdenum carbides on the structure of the axial zone of the rolls. The obtained curves can also be used to assess the accuracy of computer modeling of the processes of Fe-C alloys solidification and further adaptation of mathematical models by the correction of thermophysical coefficients, the values of which are not always known in the liquidus-solidus temperature range.
Non-destructive measurements of fuel cladding thickness
Authors: Hlávač Zbyněk , Dostal Martin , Pašta Ondřej , Filipi René , Kopeć Marcin , Assmann Leoš
Published: December 2024

The method of non-destructive measuring the thickness of small-diameter thin-walled pipes consists of using the reso-nant frequency of vibrations in the plane of the pipe cross-section to determine the pipe wall thickness. The relative ratio of the measured frequencies determines the thickness of the thin-walled pipe with great accuracy. For small pipe diame-ters, the method achieves the most accurate results. The accuracy of the measurement is directly dependent on the thickness of the pipe wall and for very thin walls the method achieves the highest accuracy. The invention relates to a method of non-destructively measuring the thickness of pipes that can only be accessed from the outside or just possi-bly from the inside. Particularly good results are obtained with thin-walled pipes of small diameter, such as nuclear fuel cladding or steam generator pipes. Measurement of the cladding thickness is important for downstream activities such as nuclear fuel inspections or thermomechanical calculations. The non-destructive form of measuring the thickness of thin-walled components such as fuel claddings opens the possibility of expanding activities within the inspection of en-ergy equipment to other areas of industry, testing, or structural diagnostics.
Improvement of Unmanned Aerial Vehicles model under surge of Lightning Electromagnetic Pulse developed using Artificial Intelligence based on laboratory measurements in reference to classical regression methods
Authors: Kossowski Tomasz , Mazur Damian , Kwiatkowski Bogdan , Hawro Przemysław , Imiełowski Andrzej
Published: December 2024

Unmanned aerial vehicles (drones) are increasingly used in a growing number of applications, both civil and military. Their design is based on low weight, making the presence of shielding a difficult decision between safety and weight. Currently, there are no mathematical models to determine the safety of drones operating near a storm front. Lightning causes an electromagnetic wave of an impulse nature, which may pose a real threat to electronic systems. This work attempts to develop a mathematical model for simulating drones safety in terms of electromagnetic pulses using artificial intelligence-based tools. Actual measurement results collected from four drones were used as training data. They were tested in laboratory conditions using specialized measuring equipment used to test avionics in accordance with international standards such as DO-160. A repeatable surge pulse generator and a data acquisition system allowed us to collect information on how overvoltages propagate inside the drone’s systems. Systems that directly influence its operation were selected for this purpose, such as the power supply system, engine controllers, GPS system, camera and data bus lines. Other works show that most overvoltages are induced in motor coils and antennas. On this basis, a number of formulas and equations were developed to describe the most important elements of the drone, without which its correct operation will not be possible. The results of the analyzes and the mathematical model of the drone based on the examined cases are presented in this work as a complement to real experiments.
Reducing nutrient loss in intensive agriculture – preliminary pot research
Authors: Garbowski Tomasz , Grabowska-Polanowska Beata , Kowalczyk Agnieszka , Ekholm Petri
Published: December 2024

The maintenance of appropriate soil structure is critical for preventing soil degradation and mitigating nutrient losses that cause eutrophication of water bodies. An important challenge to combat eutrophication in the Baltic Sea is reducing phosphorus losses from agricultural land. Gypsum (CaSO4∙2H2O) has been identified as a promising soil amendment that improves soil structure and reduces phosphorus leaching. However, it has not been widely used in Poland. The article explains the importance of gypsum during the formation of a lumpy soil structure and in reducing phosphorus losses. A total of 18 samples were prepared, including three replicate samples without and with gypsum. Gypsum was added to each of the three pots based on the bulk density of the soil to correspond 4 Mg of gypsum per ha. The soil samples were analysed for total phosphorus, phosphates, available phosphorus, pH in water, KCl, and organic carbon. The study presents findings of a laboratory pot test conducted on three soil samples from Southern Poland. The pot experiment indicated a decrease in turbidity of leachates from the soil samples treated with gypsum. Gypsum application did not significantly affect soil pH and total phosphorus content. Analysis of the soil samples before and after the watering showed that the total phosphorus concentration did not change. This was due to the low share of phosphorus released relative to the total phosphorus content in the soil.  
The River in Reverse: Flood Imaginaries, Old and New
Authors: Grønstad Asbjørn , Vågnes Øyvind
Published: December 2024

In this article, we turn to consider a specific region, and genre, that has spawned its own narrative tradition of environmentally perceptive songlore – the flood chronicles of the Mississippi Delta. Both real and mythological, this area constitutes a fertile source for the evolution of what we propose to call aesthetic imaginaries, and the article demonstrates how a distinct “flood imaginary” resonates through a specific tradition of songwriting, emerging and re-emerging with a set of poetic and musical tropes, serving different artistic purposes across time.
National Governance Quality, Competition and Firm Investment
Authors: Phan Quynh Trang , Nguyen Van Diep
Published: December 2024

This study investigates how market competition affects firm investment and the moderating effect of national governance quality (CGI) on the relationship between competition and firm investment in research and development (R&D) and tangible assets. The sample consists of 16,493 observations from World Bank Enterprise Surveys (WBES) in 88 countries in 2016 – 2022. The regression results show that both the competition and the level of market competition encourage firms to invest more in R&D and tangible assets. The quality of national governance also adjusts the relationship between competition and firm investment. Notably, the better quality of national governance strengthens the relationship between competition and firm investment. However, it weakens the relationship between a higher degree of competition and firm investment. In addition, the marginal effects examination suggests that variations in the quality of national governance influence the relationship between competition and investment in R&D investment, which is more pronounced than tangible investment in the presence of at least one competitor. In conclusion, the relationship between competition and investment is moderated by changes in CGI, the starting level of CGI score, and the market structures. The empirical results propose some implications for firm managers and policymakers to boost investment and a transparent environment for firm investment.
‘Nobody Appreciates the Soldiers’
Authors: Csörsz Rumen István
Published: December 2024

The variants of the song analyzed in this paper have persisted in Hungarian popular poetry (manuscript songbooks) and folklore from the 1710s to the present day. The song, composed after the fall of Ferenc Rákóczi II’s War of Independence (1703–1711), expresses the grievances of soldiers regarding public order. Despite their heroism and victories, they were not appropriately honored by their noble officers, which facilitated the Habsburgs’ ability to suppress the revolt. Nearly all variants of the song criticize the arrogant Hungarian nobility for their delusions. Later versions of the song transcend the Kuruc era, addressing soldiers’ experiences more broadly across different historical periods. It was sung by Hungarian soldiers fighting against Napoleon and other adversaries, as well as in the context of conflicts with outlaws. Starting in the mid-19th century, the rise of “Kuruc romanticism” imbued this popular song type with renewed significance, leading new written versions to be perceived by the public as “original.” The Tyukodi Song (Te vagy a legény, Tyukodi pajtás – ‘You are the guy, our pal Tyukodi’) stands as one of the most renowned examples. It can be regarded both as an authentic relic and as a counterfeit, reflecting its dual role in Hungary’s cultural memory.
Economics of Survival
Authors: Balogh Gergő
Published: December 2024

In this paper, I aim to analyse Imre Kertész’s Fatelessness from the perspective of its economic systems. In Kertész’s work they form a discursive network that permeates the entire novel (Szirák 2022). It is also important to see that the circulation of symbolic and material values also plays a key role in the demarcation of the boundaries between the concentration camps and the world outside. However, in the novel’s memorable yet perplexing conclusion, this distinction turns into a speech about the relative purity and simplicity of life in the camp. In an attempt to answer the questions arising from this statement by György Köves, I will argue that understanding of the economic models and the differences between them in the worlds of the inside and the outside is essential to the interpretation of Fatelessness.
Nexus of employability, work climate, and service charter’s effectiveness: USEM model and self-determination theory perspective
Authors: Gyepi-Garbrah Theophilus , Preko Alexander
Published: December 2024

This study aims to understand how ‘employability’ factors and ‘work climate’ affect the effective implementation of service charter protocols in the public sector context. The study employed a quantitative method anchored on the Understanding-Skillfulness-Efficacy belief-metacognition (USEM) model and self-determination theory, utilising the convenience sampling method in surveying 402 graduate employees of the civil service in Ghana. The findings confirm that skillfulness, efficacy belief, and metacognition employability elements derived from the USEM employability model significantly influence the service charter’s effectiveness. Meanwhile, ‘work climate’ significantly moderates the ‘efficacy-belief-service charters’ effectiveness (SCE)’ relationship. However, understanding the subject matter did not significantly impact SCE. This study makes a novel contribution to the services literature by addressing how ‘employability’ elements and ‘work climate’ interact to influence service charters’ effectiveness, an area of study needing more attention in services literature.
The Nexus Between Economic Policy Uncertainty and Stock Market Volatility in the CEE-3 Countries
Authors: Güngör Arifenur , Güngör Mahmut Sami
Published: December 2024

A stock market plays a pivotal role in a financial system and is monitored as a yardstick of a healthy economy. It is a stylized fact that there is a positive and significant relationship between financial development and economic growth. However, emerging markets often exhibit more volatile returns than developed markets, and extreme volatility might prevent financial stability. The literature underlines the role of uncertainty in predicting volatility and suggests a strong positive association between economic policy uncertainty and stock market volatility. Against this backdrop, this study examines the dynamic nature of relationships between economic policy uncertainty (in Germany and the US) and long-run stock market volatility of CEE-3 (Central and Eastern European: the Czech Republic, Hungary, and Poland) countries. This study follows two steps in empirical analysis. First, it obtains long-run stock market volatility and then estimates dynamic regression models. The evidence shows a positive and significant one-period lagged impact of economic policy uncertainty on long-run stock market volatility.
Factors Determining Promotional and Image-Building Activities of Vocational Schools
Authors: Widelska Urszula
Published: December 2024

This study investigates the factors influencing the promotion and image-building activities of vocational schools in Poland, with a focus on the Podlaskie Voivodeship (one of Poland’s fifteen regions). Using structural analysis and the MICMAC methodology, the research identifies key variables shaping vocational education promotion, including external factors like competition in the education market, generational attitudes of students, and regional economic development, as well as internal factors such as schools’ initiative-taking capacity, awareness of promotional needs, and relationships with employers. Expert stakeholder evaluations are analyzed using a structured methodology, ensuring that identified factors and relationships reflect insights from professionals and stakeholders in the vocational education sector. Significant interdependencies were found among factors, emphasizing the pivotal role of relationships with employers and the adaptive use of social media as a goal-oriented tool for communication. Findings underscore that effective promotion of vocational education requires a strategic approach integrating internal strengths with external collaborations to address stakeholder needs, improve societal perception, and enhance competitiveness. Key recommendations include fostering relational capital, involving employers in defining school missions, and aligning promotional strategies with dynamic labor market demands and technological advancements.
Geological Models and Stability Analysis
Authors: Florea Adrian , Danciu Ciprian
Published: December 2024

Geological models are built to serve various purposes (e.g. reserve evaluation, rock stability analysis, etc.). Several software packages dedicated to geological modeling and rock stability analysis are currently available. The paper presents the workflow for rock stability analysis performed with Slide3 software from Rocscience. An important step is to build the 3D geological model both from the perspective of geometry and rock properties. Doing this in Slide3 is not an easy task and for this reason, we turned to GEOVIA Surpac. The steps were exemplified for the northern area of the Ruschita marble deposit.
Dynamic Analysis of a Bucket Wheel Excavator Boom Using FEA
Authors: Juhász Alex , Virág Zoltán
Published: December 2024

Bucket wheel excavators are the most widely used technology for lignite extraction and overburden removal in opencast mining. This is due to their high efficiency and ability to handle a wide range of geological conditions. The loads on the bucket wheel and dipper can vary significantly during excavation due to difficult-to-penetrate inclusions and the changing geological environment. This can lead to vibrations that can damage the excavator, especially the structural components directly or indirectly involved in the excavation. To investigate the effects on the main structural elements, it is essential to examine the natural frequencies. In this study, we investigate the natural frequencies and vibration modes of the boom structure of a bucket wheel excavator using a model developed in a previous study. The behavior of the structure is examined using a 3D finite element model under the action of loads and effects during use.
Determining the Position of the Center of Gravity by Tensiometric Measurements for the Machines with Bucket Wheels Used to Remove Coal from Deposits
Authors: Itu Răzvan Bogdan , Vîlceanu Florin , Urdea Gheorghe Bogdan
Published: December 2024

The machines with bucket wheels used to remove and to put coal in deposits are intended to dump and remove coal from quarries and power station deposits. The paper presents how to determine the gravity center of a machine with bucket wheels used to remove coal from deposits, by tensiometric measurements, in various positions of the arm of the bucket rotor (wheel). The machine with bucket wheel used for taking out from deposits is within Arcelor Mittal Galați. The measurements have been made in limit positions of the arm of the bucket wheel, horizontally and vertically, respectively, and have been made because of determining an additional weight that should be added in the ballast box of the equilibrium arm, if appropriate.
Design and Execution of Drilling and Blasting Works Using Modern Scanning Techniques
Authors: Gheorghiosu Edward , Becuţ Silviu
Published: December 2024

The basic principles for the design of the parameters of the shooting techniques are: the exact definition of the technical and economic objectives and especially those related to the granulometry of the demolished material, knowledge of the characteristics of the rock massif (degree of cracking and local fracturing, compressive and tensile strength of the rocks, the degree of homogeneity and their compactness), knowing in detail the possibility of executing the firing holes for loading and crushing the demolished material, knowing the explosive used and its behavior in the concrete conditions of the quarry, specifying the restrictions imposed by the protection of the environment (distances from the surrounding objectives, the maximum accepted levels of vibrations, noises, dust). In order for all these principles to be fulfilled, there are methods of designing and executing the drilling and shooting works so that the results of the shooting works are those expected in conjunction with a rational exploitation in safe conditions. The paper presents a case study where the design and execution of drilling and blasting parameters was successfully applied using modern equipment.
Living Lab – A Systemic Innovation Approach to Restoring Soil Health on Unproductive Land in the Jiu Valley
Authors: Dunca Emilia-Cornelia , Radu Sorin-Mihai , Irimie Sabin , Varga Lucia-Ana , Panaite Fabian
Published: December 2024

The Living Lab is an innovative and effective approach to restoring soil health on unproductive land. Through collaboration between different researchers and the use of adaptable and sustainable solutions, this method can transform degraded land into valuable resources, contributing to agricultural sustainability and the development of local communities. The establishment of a Living Lab on the non-productive lands of Jiu Valley as a systemic approach to innovation in which all interested parties are involved in the research and application of solutions to restore soil health is a challenge. The paper presents the methods used, the working hypotheses, the data analysis and the interpretation of the results obtained in the living lab created to study the cultivation of biomass, its energy utilization and the obtaining of biofertilizers. Multiple approaches regarding the obtained biofertilizers and their application to restore soil health are presented. The limits and conclusions of the innovative research carried out so far in the Living Lab are presented.
Training Scenarios for Mine Rescuers Aimed at Selecting and Building Rescue Teams Able of Intervening in Major Incidents
Authors: Nicolescu Cristian , Găman George Artur , Pupăzan Daniel , Ilie Cosmin
Published: December 2024

In mining rescue operations, the practical training of rescue personnel plays an essential role in the selection and configuration of rescue teams that intervene in critical situations, major incidents, accidents or other events occurring in underground mining works. Practical training can be conducted through monthly scheduled practical exercises at rescue stations within a mining unit, as well as through modern training means available at INCD-INSEMEX Petroșani (virtual reality, mobile training facility for rescuers) used in the process of instruction and re-instruction of mining rescuers. Mining rescuers’ training level can be quantified through both physical and mental training by their reactions in certain critical situations, which can be created using virtual reality. Furthermore, the monitoring of the rescuers’ physiological parameters before, during and after performing the practical exercise is also of particular importance. This monitoring can be carried out through the equipment available in the mobile training facility. The current paper aims to establish complex training scenarios for mining rescuers to select and configure rescue teams that can act in case of explosions, mine fires or other events.