bluuebunny/crossref_metadata_2025 huggingface dataset:
TRENDS OF THE MICROWAVE PHOTONIC RADARS
Authors: Avrutov Vadym , Rupich Sergii , Tsisarzh Vyacheslav
Published: July 2024

Today, the world's leading countries are intensively working on the development of new generation radars - microwave photonic radars. Microwave photonic radars make it possible to significantly reduce the mass and size characteristics of radar stations, to increase the information capability and range of target detection due to the reduction of losses in long communication lines when using optical fiber, to ensure high immunity due to the significantly lower sensitivity of optical-electronic equipment and fiber-optic lines of communication connection to external electromagnetic influences. Microwave photonics provides wide bandwidth, flat response, low loss transmission, multi-dimensional multiplexing, ultra-fast analog signal processing and immunity to electromagnetic interference. Radar implementation in the optical domain can provide better resolution, coverage, and speed performance, which would be difficult to implement with traditional electronics. The review article examines the state of development and system architectures of such photonic radars as optoelectronic hybrid radars, all-optical radars, multifunctional microwave photonic radar systems, distributed microwave photonic radars, software-defined radars, and cognitive radars. New technologies in this field and possible future directions of research are discussed. As an example, a broadband microwave photon radar reproduced on the basis of a microcircuit is considered. The broadband signal generator and receiver are built into the silicon crystal on the insulator. A high-precision distance measurement with a resolution of 2.7 cm and an error of less than 2.75 mm was obtained. Visualization of multiple targets with complex profiles has been implemented. But the performance of most integrated microwave photonic chips is not yet satisfactory for practical radar applications. Monolithic integration of key microwave photonic subsystems is also not mature enough for practical applications, so hybrid integration of devices fabricated on their optimal integration platforms is of practical interest. At present, indium phosphide, silicon nitride and silicon on insulator are the three leading platforms for photonic integration
ANALYSIS OF METHODS FOR EVALUATION ESSENTIAL PERFORMANCE OF MECHANICAL TOURNIQUETS
Authors: Molodtsov Dmytro , Shevchenko Kostiantyn
Published: July 2024

The article is devoted to the analysis of methods for evaluating essential performance of mechanical tourniquets to improve their safety in use. According to the legislation of Ukraine and the European Union, a tourniquet is a medical device that, regardless of design, provides relief to a patient in the event of an injury by stopping bleeding in the limb by applying mechanical pressure. Tourniquets are classified as pneumatic and mechanical depending on the method of creating external pressure. The article considers a typical design of mechanical tourniquets and identifies the main structural elements: a pressure generating mechanism, a pressure element, a fixing device, and a place for recording the time of application.
The analysis of scientific articles shows a significant number of studies focusing on the characteristics of pneumatic tourniquets, while methods for testing the effectiveness and safety of mechanical tourniquets have been insufficiently investigated. It is noted that the safety of medical devices is defined as the absence of an unacceptable level of risk for the operator and the patient, where risk means the effect of uncertainty in achieving the goals in the process of development, production, design, and use of a medical device. A list of essential performance of mechanical tourniquets is provided: overlapping pressure, pressure loss after application during the time of use, pressure gradient. It has been established that to date, four methods are known for obtaining measurement information on essential performance of mechanical tourniquets: a method based on converting the pressure value generated by the tourniquet during application into an electrical signal using strain sensors; a method based on measuring air pressure in a test cuff; an indirect method for determining pressure using Lamé's equation; a method for directly measuring pressure in the limb under the tourniquet using an invasive pressure sensor. Based on the identified essential performance of mechanical tourniquets, the requirements for methods of their determination are presented: measurement of overlapping pressure, determination of pressure loss after the tourniquet is applied during the time of use, determination of pressure gradient, reproducibility, repeatability, evaluation of metrological uncertainty, and evaluation of the essential performance of mechanical tourniquets based on mathematical models. Ways to improve the existing methods for evaluating essential performance are considered.
The influence of nanocellulose from different plant raw materials on the quality indicators of electrical insulation paper
Authors: Yakymenko Olha , Barbash Valerii , Yashchenko Olga
Published: July 2024

An urgent scientific and practical task for electrical engineering enterprises is to improve the specific characteristics of component transformers and capacitors that use electrical insulating paper. Electrical insulating paper is characterized by a wide list of special quality indicators, the necessary values ​​of which are achieved due to the use of cellulose with special properties and various chemical auxiliary substances. There are known attempts to use nanocellulose (NC) from wood to reduce the consumption of harmful synthetic chemical auxiliaries, but there are practically no research results on the impact of consumption of NC from non-wood plant materials. Therefore, in the work, a comparative study of the effect of NC from hemp fibers and coniferous wood on the target indicators of the quality of electrical insulating paper was carried out. For this, cellulose, suitable for extracting NC from hemp fibers, was obtained by an environmentally safe organosolv method. NC is obtained as a result of acid hydrolysis of organosolv hemp and sulfate unbleached coniferous cellulose, which is traditionally used in the production of electrical insulating paper.
Laboratory samples of electrical insulating paper were made with a weight of 65±3 g/m2 from sulfated unbleached coniferous cellulose with the addition from 1% to 5% NC by weight of paper. The research results confirmed the hypothesis that the addition of NC paper pulp from various plant raw materials leads to an increase in the mechanical and electrical strength of the paper. It has been established that the effect of NC from hemp fibers on the quality indicators of electrical insulation paper is not inferior to the effect on them of NC from coniferous wood, and in some cases even a better result is observed. It was established that the introduction of NC into the composition of paper practically does not reduce its degree of polymerization, which is of great importance for maintaining high reliability and a long duration of work of paper insulation. The obtained results have scientific and practical significance for other types of insulating papers: capacitor, cable, telephone, impregnation, transformer, etc.
ANALYTICAL STUDY OF DURABILITY AND CONTACT CHARACTERISTICS OF METAL-POLYMER COMPOSITE SLIDING BEARINGS FOR MEANS OF TRANSPORT
Authors: CHERNETS Myron , WRONA Rafał , CHERNETS Yuriy
Published: July 2024

The field of application of metal-polymer bearings is vast: transport of various types, processing industry equipment, medical equipment, various types of maintenance equipment, etc. With the use of the developed generalized author's analytical method of metal-polymer plain bearings on the basis of which it is laid the author's research methodology of materials wear kinetics at sliding friction (dry, lubricated), calculation of their durability is carried out. Contact parameters are also determined. Metal-polymer bearings with a bushing made of PA6, PA66 polyamide and PA6 based composites filled with glass (PA6 + 30GF) and carbon (PA6 + 30CF) dispersed fibres, molybdenum disulphide (PA6 + MoS2) and oil filled cast polyamide (PA6 + oil) are considered. These polyamides (unfilled and filled), as self-lubricating materials, are widely used in this type of dry friction sliding bearings. The predictive estimation of durability of investigated bearings depending on loading, polymer materials Young's modulus, their wear resistance and sliding friction coefficient is executed. Regularities of change from the specified factors of bearing's durability and the maximum contact pressures are established. Experimental indicators, diagrams, and wear resistance characteristics of the specified polymeric materials are presented. The results of researches of sliding friction coefficient and modulus of elasticity for carbon steel (0.45%C) – polyamides tribocouples are presented.
IMPROVE THE SAFETY OF AIR TRANSPORT, ESPECIALLY IN MILITARIZED TERRAIN, BY USE OF SIDE LOOKING AIRBORNE RADAR AND SPACE TIME ADAPTIVE PROCESSING
Authors: ŚLESICKI Błażej , ŚLESICKA Anna , KAWALEC Adam
Published: July 2024

The paper explores the potential to enhance aviation safety, particularly in militarized regions, by outfitting aircraft with Side Looking Airborne Radar (SLAR) and employing space-time adaptive processing (STAP) algorithms. The research objective revolves around implementing a model of side-looking airborne radar and the corresponding STAP algorithms. This technology enables the detection of slow-moving targets amidst strong interference, encompassing both passive (clutter) and active (jammer) elements. Slow-moving targets relative to the aircraft's speed include tanks, combat vehicles, command vehicles, artillery, and logistical assets of enemy forces. The theoretical framework of space-time adaptive processing is presented, elucidating the sequential steps of the classical Sample Matrix Inversion Space-Time Adaptive Processing (SMI STAP) algorithm. The paper underscores the significance of characteristic parameters delineating a linear STAP processor. The proposed solution facilitates the detection of enemy combat measures and enhances aviation safety. It outlines a radar model installed beneath the aircraft's fuselage and elucidates algorithms for space-time adaptive processing of radar signals. The simulations conducted within the article were executed using the MATLAB environment. The simulation results indeed suggest that the proposed solution holds promise for deployment in equipping aircraft of one's own military and those engaged in operations within conflict zones. This paper stands as one of the few contributions in the literature addressing the augmentation of aircraft safety through radar and space-time adaptive processing.
FORECASTING FUTURE PUBLIC TRANSPORT MODE CHOICE BEHAVIOUR OF COMMUTERS IN BAHRAIN USING LOGIT AND CLASSIFICATION TREE MODELS: A COMPARATIVE STUDY
Authors: JAZI Marwa , GAZDER Uneb , ARSALAN Mudassar , MEHDI Mohammed Raza
Published: July 2024

Global trade and social relationships are greatly facilitated by transportation. However, the majority of nations, including Bahrain, face substantial challenges with their transportation systems. For the development of technical solutions that can promote the progress of these transport systems, it is now crucial to have a complete understanding of travel demands and driver's characteristics. This paper aims to explore the influential factors concerning travel mode choice in Bahrain and utilize mode choice models to forecast the probable utilities of various future public transport modes. The study utilizes diverse, 3864 data records extracted from previous surveys as well as a recent one conducted within this research. Subsequently, using Minitab software, two types of mode choice models were built, namely the logit model and the classification tree model, focusing on modelling the future transportation system, considering potential public transport modes (Public Bus, Metro, and Tram). The analysis of the data identified trip cost as the top predictor, moreover, direct, and quick travel, accessibility, and convenience were also found to significantly influence the choice of travel mode in Bahrain. Additionally, the findings indicate that the metro is the preferred choice for future public transport, with a strong preference observed for a combination of metro and tram. The research also suggests, in terms of model performance, that when capturing more complex patterns, as in this study, the classification tree outperforms the multinomial Logit model. Overall, the research provides valuable insights into mode choice in Bahrain and highlights the important factors influencing commuting decisions. The results of this study can support the development of an efficient public transportation system that would satisfy the needs and preferences of commuters in Bahrain and ultimately lead to a sustainable and accessible transportation infrastructure in the country.
Review Literatur melalui Publish or Perish pada Pembuatan Pupuk Organik Cair sebagai Alternatif Proyek dalam Kurikulum Merdeka
Authors: Fatimatuzzahra Irkhamni , Artha Utami Fatya Emelia , Mardliyah Ana
Published: July 2024

Tujuan penelitian ini adalah untuk mengetahui kajian-kajian jurnal yang membahas tentang pembuatan pupuk organik cair yang dapat digunakan sebagai alternatif proyek dalam pembelajaran. Metode penelitian menggunakan review studi literatur jurnal berbantuan aplikasi Publish or Perish. Teknik penelitian ini menggunakan metode modus atau berfokus pada data yang sering digunakan peneliti sebelumnya yang dijelaskan menggunakan penyajian tabel dan narasi secara kualitatif. Hasil dari penelitian ini diklasifikasikan menjadi tiga bagian yakni, karakteristik terdiri dari tahun dan akreditasi jurnal. Publikasi jurnal paling banyak pada tahun 2019 dan akreditasi jurnal dengan akreditasi tinggi ada pada sinta 3. Selanjutnya sumber bahan yang digunakan paling banyak adalah dari urine dan kotoran hewan. Pupuk organik cair banyak diimplementasikan ke tanaman oleh masyarakat sebagai pengganti pupuk kimia. Selain itu, pembuatan pupuk organik cair bisa menjadi ide alternatif untuk proyek pembelajaran kimia pada kurikulum merdeka. Pada jurnal yang telah direview pupuk organik cair memiliki efektivitas yang cukup tinggi.

 

 
Technology Innovation of Small And Medium Enterprises: A Literature Review Assisted With NVivo 12 Pro
Authors: Abidin Helmi , Hermawan Agus , Suharsono Naswan
Published: July 2024

This research aimed to explore the technological innovation trends among SMEs in various countries. Data was obtained by searching literature from metadata on the Scopus website from 2020 to 2023. The literature obtained was then selected using the Prisma method based on the researcher's needs, and analyzed qualitatively and mapped with the help of NVivo 12 Pro. The study's results, based on the country of research location, obtained results of innovation in the technology field for SMEs from Indonesia. The best journals with publications quite popular for researchers in the SMEs field are the Journal of Business Research (Q1) and Cogent Business & Management (Q2). Innovation in marketing or advertising is the most dominant, and research will occur in 2022 and 2023. Trends in the use of technology in MSMEs from the results of the literature review include financial systems, exports, transactions, quality management, supply chain management, financial technology, marketing, and production. The literature review results that still need to occur more regarding technological innovation for SMEs are technological innovation at the management or organizational scale.
The Influence of Steam Project-Based Chemistry Learning with the Assistance of Chemsketch on Learning Outcomes and Creative Thinking Ability on Macromolecular Materials
Authors: Ummah Miftahun Nafiul , Nugroho Deni Ebit
Published: July 2024

This research aims to determine the effect of STEAM Project-based chemistry learning assisted by ChemSketch on the learning outcomes and creative thinking abilities of students at SMA N 1 Kendal. This research is quantitative research using the Quasi Experimental method. The quasi experimental design in this research is nonequivalent control group design. Samples were taken using cluster random sampling technique. The population of this study was all students in class XII MIPA SMA N 1 Kendal. Chemistry learning using the STEAM Project approach has a moderate effect in improving student learning outcomes as evidenced by the t-test value of the difference between two average learning outcomes of 0.031 (sig. (2 tailed) < 0.05) which means Ha is accepted and the Effect Size test of 0.53. Meanwhile, the STEAM Project approach in this research had no effect on students' creative thinking abilities due to the lack of variety of questions and limited time during learning. This is proven by the t-test, the difference between the two average creative thinking abilities is 0.109 (sig. (2 tailed) > 0.05).
Bullying Phenomenon and The Perspective of Islamic Sharia in Society: Literature Review of The Last Ten Years from Various Countries with the Assisted of NVivo
Authors: Saputra Deris Arista
Published: July 2024

This research aimed to examine various studies that raised the theme of bullying in numerous countries over the last ten years, and explains how Islamic law provides its perception in preventing and avoiding bullying in social life. The research method applies literature review by reviewing various studies in journal articles. Article searches were carried out using the search engine on the Scopus website with the keyword "bullying phenomenon". The results show that bullying can occur in various locations, starting from educational establishments, workplaces, and even in everyday life. Based on the grouping of bullying locations in schools, it was found that the junior secondary education level was the focus of most research. The study results on the factors that cause someone to experience or become a perpetrator of bullying include family conflict, school playground, school economic index, digital media, and cultural diversity. The impacts of bullying include Exit from the organization, gender stereotypes, characteristics, and academic achievement. The final part is the solution or prevention of bullying, including victims' services, psychosocial well-being, sports participation, family environment, and awareness of the bullying phenomenon. Reflections is becoming increasingly important, and Islam is its source.
The Effect of Using Devlabs Learning Media on Improving Students' Understanding of Concepts on Buffer Solution Materials
Authors: Nugroho Deni Ebit , Khasanah Rania Nurul
Published: July 2024

Media pembelajaran belum dimanfaatkan secara optimal menjadi salah satu penyebab rendahnya pemahaman konseptual siswa. Salah satu media pembelajaran yang dapat digunakan untuk membantu mengoptimalkan kemampuan dalam mengingat dan memahami suatu materi yaitu media develabs. Penelitian ini bertujuan untuk mengetahui pengaruh penggunaan media pembelajaran devlabs terhadap peningkatan pemahaman konsep siswa pada materi larutan penyangga. Penelitian ini merupakan jenis penelitian quasi ekperimental research dengan desain non-equivalent control group design. Penelitian ini dilakukan di SMA N 1 Kaliwungu Kendal, sampel pada penelitian ini adalah siswa kelas XI MIPA 3 dan XI MIPA 5. Teknik sampling yang digunakan yaitu claster random sampling. Teknik analisis data pada penelitian ini yaitu analisis pemahaman konsep, uji perbedaan dua rata-rata, uji pihak kanan, dan uji effect size. Hasil penelitian menunjukkan terjadi peningkatan pemahaman konsep siswa setelah menggunakan media pembelajaran devlabs dengan uji independent sampel t-test yaitu 0,000 < 0,05. Hasil uji effect size sebesar 3,80% dengan Kategori “tinggi”.
The Influence of Guided Note Taking Learning Model Integrated Unity of Science on Students' Scientific Literacy in Acid and Base Material
Authors: Anas Irvan Khoiril , Alawiyah Nur , Pratiwi Resi
Published: July 2024

Salah satu tantangan di bidang pendidikan Indonesia adalah meningkatkan literasi sains siswa. Berdasarkan data PISA tahun 2018, Indonesia mengalami penurunan peringkat. Tawaran solusi yang bisa digunakan untuk meningkatkan literasi sains adalah penggunaan model pembelajaran Guided Note Taking (GNT) yang terintegrasi Unity of Science (UoS). Penelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran GNT terintegrasi UoS terhadap literasi sains siswa pada materi asam dan basa. Metode penelitian ini adalah kuantitatif eksperimen dengan jenis quasi experiment. Sampel yang digunakan adalah kelas XI MIPA 1 dan 2 SMA N 2 Semarang. Hasil data yang diperoleh dinyatakan data yang normal dan homogen yang kemudian digunakan Uji t menunjukkan 0,811 pada pre test dan post test 0,02. Hasil uji N-gain menunjukkan skor kelas eksperimen 0,472 dan kelas kontrol 0,194. Berdasarkan analisis data tersebut diambil kesimpulan bahwa kedua kelas setelah diberikan perlakuan memang mengalami peningkatan, tetapi peningkatan pada kelas eksperimen lebih tinggi daripada kelas kontrol.
Pengembangan Sistem Aplikasi Tata Niaga Ternak Dan Produk Hewan: Studi Kasus di Kabupaten Sumbawa Barat
Authors: Asgar Hari , Hassanuddin Hasanuddin
Published: July 2024

Padang rumput di beberapa daerah di Indonesia digunakan sebagai sumber penggembalaan hewan, sebaliknya, Dinas Pertanian Kabupaten Sumbawa Barat masih menggunakan cara manual dengan petugas datang ke lokasi ternak sapi. Penelitian ini bertujuan untuk merancang sistem tata niaga ternak dan produk hewan secara online di Kabupaten Sumbawa Barat, Indonesia. Tahapan pengembangan dalam penelitian dengan model D&D, meliputi identifikasi masalah, mendeskripsikan tujuan, desain dan pengembangan produk, uji coba produk, evaluasi hasil uji coba, dan mengkomunikasikan hasil uji coba. Setelah proses pengembangan desain, selanjutnya dilakukan uji coba dan evaluasi oleh oleh pengguna. Sebanyak 11 pegawai Dinas Pertanian Kabupaten Sumbawa Barat melalui 18 pertanyaan dengan rentang pilihan jawaban sangat setuju, setuju, tidak setuju dan tidak setuju. Objek media yang dikembangkan adalah website SITANDUK KSB yang dapat diakses melalui https://sitandukksb.id/server. Berdasarkan hasil uji coba ditemukan bahwa secara umum responden memberikan tanggapan sangat setuju pada setiap komponen website, meskipun pada beberapa kriteria ditemukan beberapa responden yang tidak memberikan penilaian sangat setuju pada komponen tampilan, menu, dan konten yang masih perlu perbaikan dan penyesuaian. Hasil pengembangan website SITANDUK KSB menjadi solusi dalam memuat data ternak secara rinci, termasuk identitas pemilik, sehingga menjadi informasi yang lengkap bagi masyarakat untuk melihat data ternak yang akan dibelinya.

 
Humanist Management Model: The Role of Leadership and Assistance for Feelings of Happiness through Satisfaction
Authors: Buheti Buheti , Suparmoko Muhammad , Mukhlis Ahmad
Published: July 2024

Manajemen humanis merupakan manajemen yang brsumber dari rasa Bahagia pada setiap anggota kelompok. Tujuan penelitian adalah membangun model manajemen humanis untuk mencapai inovasi kinerja guru dalam rangka membangun lingkungan kerja yang sesuai dengan kepuasan pegawai sehingga tercipta suasana kerja yang nyaman. Jenis penelitian ini adalah kuantitattif dengan metode survey pada guru sekolah dasar di kota Cilegon. Riset ini memasukan variabel mediasi kepuasan sebagai predictor antara variable independent (kepemimpinan dan pendampingan) terhadap rasa bahagia pada pegawai. Hasil penelitian antara lain: (1) ada pengaruh kepemimpinan terhadap kepuasan; (2) ada pengaruh kepemimpinan terhadap rasa bahagia; (3) ada pengaruh pendampingan terhadap kepuasan; (4) ada pengaruh pendampingan terhadap rasa bahagia; serta (5) ada kepuasan terhadap rasa bahagia. Simpulan penelitian ini yaitu terdapat interaksi positif antar variabel penelitian terhadap kepuasan kerja.

 
The Role of Community Health Center Service Quality and Health Service Facilities on Patient Satisfaction Through Community Health Center Accreditation
Authors: Arifin Fakhrul , Yusuf Furtasan Ali , Hardianto Ade Manggala
Published: July 2024

Kepuasan pasien puskesmas merupakan hal penting untuk selalu diperbaiki baik kepuasan pasien pada tangible dan intangible. Tujuan penelitian ini adalah untuk mengembangkan sebuah konstruk mediasi akreditasi Puskesmas (intangible) sebagai pelayanan kepuasan pasien puskesmas. Hasil penelitian antara lain: (1) tidak ada pengaruh kualitas pelayanan puskesmas terhadap kepuasan pasien; (2) tidak ada pengaruh fasilitas pelayanan kesehatan terhadap  kepuasan pasien; (3)  tidak ada pengaruh akreditasi puskesmas terhadap kepuasan pasien; (4) ada pengaruh fasilitas pelayanan kesehatan terhadap  akreditasi puskesmas; serta (5) variable mediasi akreditasi dapat memediasi secara penug antara variable independent (fasilitas pelayanan dan kualitas pelayanan puskesmas) terhadap kepuasan pasien. Simpulan penelitian ini adalah kepuasan pasien puskesmas dapat tercapai apabila puskemas meningkatkan fasilitas pelayanan kesehatan, dan akreditasi puskesmas.
The Influence of School Principals' Responsibilities on Teacher Competencies Through Academic Supervision and Learning Facilities
Authors: Rodiyah Siti , Yusuf Furtasan Ali , Umalihayati Umalihayati
Published: July 2024

Tujuan penelitian adalh untuk mengoptimalkan kepala sekolah sebagai penjamin mutu Pendidikan, resilience, dan peka terhadap perubahan lingkungan. Jenis penelitian adalah kuantitatif dengan responden para guru sekolah dasar kota Cilegon. Teknik pengumpulan data melalui survey google form dan terkumpul 150 responden untuk diuji dan dibahas melalui alat statistic structural equation modelling (SEM). Hasil penelitian antara lain: (1) ada pengaruh tanggung jawab kepala sekolah terhadap supervisi akademik; (2) ada pengaruh tanggung jawab kepala sekolah terhadap fasilitas belajar; (3) ada pengaruh tanggung jawab kepala sekolah terhadap kompetensi guru; (4) tidak ada pengaruh supervisi akademik terhadap kompetensi guru; (5) tidak ada pengaruh tidak ada pengaruh fasilitas belajar terhadap kompetensi guru; serta (6) hasil uji mediasi fasilitas belajar dan   supervisi akademik mengindikasikan bahwa variable independent tidak mampu mempengaruhi langsung ke variable dependen kecuali melalui variable fasilitas belajar dan supervisi akademik. Simpulan penelitian ini yaitu kepala sekolah memiliki peran strategis pada kemajuan pendidikan antara lain tanggungjawab pada supervisi akademik, tanggungjawab pada fasilitas belajar dan tanggungjawab terhadap kompetensi guru.
Challenges and Readiness of Elementary School Teachers in the Implementation of the Merdeka Curriculum
Authors: Retnowati Ayu Ana Fitri , Triyanto Triyanto , Matsuri Matsuri
Published: July 2024

This study explores the challenges faced by elementary school teachers in implementing the Merdeka Curriculum. In the era of globalization, education is becoming increasingly complex, emphasizing not only academic aspects but also the adaptability of graduates to the changing world. The aim of this research is to determine the challenges faced by teachers and the readiness of teachers in implementing the independent curriculum. The research employs a qualitative descriptive approach to investigate the preparedness of elementary school teachers in implementing the Merdeka Curriculum. Data collection techniques include observation, interviews, and document analysis. The evaluation of readiness encompasses indicators such as understanding the curriculum structure, planning, the learning process, module preparation, and assessment. Triangulation techniques ensure data accuracy. The findings reveal that teachers exhibit good readiness in planning and conducting lessons aligned with the Merdeka Curriculum. They comprehend the curriculum's principles and actively engage in developing lesson plans following the prescribed standards. Despite this positive outlook, challenges arise in terms of understanding and integrating key concepts, utilizing technology, and adapting assessment methods.
Efforts to Overcome Barriers in The Application of Digital Learning Media in The Implementation of Merdeka Belajar Curriculum in Primary Schools
Authors: Rosyid Haniifah Alyaa Azmiira , Marmoah Sri , Adi Fadhil Purnama
Published: July 2024

The study aims to describe efforts to overcoming inhibiting factors the application of digital learning media in the implementation of independent curricula in primary schools. This research uses a descriptive qualitative approach to case studies. Research data is obtained through observation of the learning process using digital learning media, interviews with teachers and documentation studies at the time of learning. The results of this study indicate that 1) The digital learning media has been implemented quite well, teachers feel helped by the presence of digital learning medium, in addition to the ease of access also because of its interesting presentation so that the pupils become more focused and interested to follow the learning activities. 2) In the application of digital media in SDN 1 Sambi there are several obstacles including: Lack of teacher ability in exploring various kinds of digital learning media. There is a shortage of digital learning facilities and facilities, and there is a lack of internet access, especially during the rainy season. 3) To solve these problems, appropriate solutions are needed: teachers should improve their ability to use media technology by following training programs outside, such as workshops, spots, or seminars related to the application of digital learning media, whereas on network barriers can be overcome by changing classes, so that the class that is far from the reach of wifi can switch with the class close to the wifi source to get the same facilities.
Differentiated Learning with the Problem Based Learning Model in Elementary School Science Learning: Literature Review
Authors: Hidayah Nur , Gunarhadi Gunarhadi , Karsono Karsono
Published: July 2024

This research aims to present a comprehensive understanding of differentiated learning strategies using the problem based learning (PBL) model through a synthesis of relevant literature. The literature review method was carried out by investigating scientific articles, books, and publications related to the application of differentiated learning using the PBL model in the context of basic education. A critical analysis of the literature was carried out to evaluate the implementation, impact, and obstacles that arise in implementing these learning strategies. This article seeks to provide an in-depth view of the principles and practices of implementing differentiated learning with PBL at the elementary school level. The research results show that the application of differentiated learning using the problem based learning (PBL) model is carried out through four components, namely differentiation of content, process, product, and learning environment. This learning also has a positive impact on the science competency of elementary school students, such as improving learning outcomes. The obstacles encountered by teachers in implementation are difficulties in compiling and carrying out diagnostic assessments, compiling appropriate content, implementing differentiated learning using the PBL learning model according to grouping, and giving assignments that must suit the learning style of each student. The implications of this literature can guide educators in designing and implementing innovative learning strategies that suit students' needs.
Implementation of The STEM Learning Model Using Math City MAP (MCM) in Improving Creative and Critical Mathematical Thinking Ability
Authors: Risnawati Risnawati , Sudiyanto Sudiyanto , Winarni Retno
Published: July 2024

There is a need to summarize the result of STEM reachers findings, especially to improve  mathematical creatives thinking and mathematical critical thinking skills. This research also synthetisizes relevant studies from various sources include: Google Scholar, Directory Open Access Journal (DOAJ), Semantik Scholar and Education Resources Information Center (ERIC) from  2015 to 2022.The result of the research show that the STEM learning models has a positive and significant influence on increasing critical thonking skills and students’ mathematical creativity. Various descriptions of research characteristics such as sample sizw, level of education, and years of education can be examined further for further research. The intergration of STEM learning models can be used by educators to facilitate students with various project-based taks and problem solving. It is hoped that the use of the Math City map application will be able to motivate students to have joyfull and meaningfull mathematics learning.In this students are required to have critical and creatives mathematical thinkings skills. The results of this research contribute to knowledge for educators and research regardib=ng how STEM should be applied in mathematics lesson.
Character Education Values in Mathematics Story Problem Solving Activities in Elementary School
Authors: Sunarni Sunarni , Usodo Budi , Chumdori Chumdori
Published: July 2024

This study describes character values in mathematics learning. The purpose of the research is to describe the character values of independence, critical reasoning, and creativity. The type of research is descriptive qualitative. Data collection through: observation, questionnaires, and interviews. The result of the research is the activity of solving mathematical story problems raises character values, namely being able to: recognize and realize self-development needs; process, build links, analyze, evaluate, and conclude; and generate ideas and look for alternative solutions. The conclusion of the research is that learning mathematics on story problem solving material can build independent character values, critical reasoning, and creativity.

 
Early Grade Teachers’ Professional Competence in Applying Sets to Numbers
Authors: Herwinda Tyas , Gunarhadi Gunarhadi , Yamtinah Sri
Published: July 2024

This study describes the professional competence of early grade teachers in applying set material in learning number material. The main objective of this study is to describe the competence of early grade teachers on set material applied in learning numbers. This type of research is descriptive qualitative with data collection methods through tests and teaching observations. The results showed that: 21 out of 25 teachers (84%) understood the notion of A∪B but were unable to apply it in addition operation; 24 out of 25 teachers (96%) understood about Cardinal numbers but what was spoken was number not lot; 25 out of 25 teachers (100%) understood the notion of A-B but were unable to apply the notion of subtraction operation.

 
The Role of Collective Responsibility and Collective Commitment towards The Cooperation Climate and its Implications for Total Quality Management
Authors: Wahyuni Raden Budi , Yusuf Furtasan Ali , Umalihayati Umalihayati
Published: July 2024

Total Quality Management (TQM) merupakan bentuk keterlibatan sumber daya. Tujuan penelitian ini adalah untuk mengetahui TQM pada Lembaga Pendidikan, dan mengevaluasi strategi karena perubahan lingkungan. Desain penelitian adalah penelitian positivism (kuantitatif). Populasi penelitian adalah para guru ASN sekolah dasar di kota Cilegon. Tekmik sampling menggunakan teknik random sampling (acak) dengan google form. Teknik analisis data menggunakan alat analisis SEM. Hasil penelitian Total Quality Management (TQM) dipengaruhi oleh komitmen Bersama, dan iklim kerjasama. dan untuk menciptakan iklim kerjasama perlu ada tanggung jawab Bersama, dan komitmen Bersama. Simpulan, Inovasi TQM Lembaga Pendidikan melalui peran guru, peran kepala sekolah, dan peran komite sekolah.
Correlation Analysis of Compensation and Work Performance (The Case of The Employees of The M Hotel of Pinrang)
Authors: Sukarana Mardiani , Anas Muhammad , Machmury Andri
Published: July 2024

Penelitian ini dilakukan dengan menggunakan pendekatan deskriptif dengan menggunakan analisis korelasional. Populasi keseluruhan dari penelitian ini berjumlah 40 karyawan The M Hotel Pinrang. Data dikumpulkan dari skor kompensasi dan jawaban kuesioner kinerja karyawan. Dataset ini menjadi data primer penelitian ini untuk proses objektif dan analisis data. Data dari kedua variabel yang diperoleh kemudian dianalisis menggunakan metode statistik populasi dengan rumus korelasi product moment. Hasil Penelitian menunjukkan bahwa terdapat korelasi positif antara kompensasi dan performa kerja. Adapun saran yang diajukan adalah sebagai berikut: (1) Perusahaan sebaiknya memberikan kompensasi kepada setiap karyawan dengan spesifikasi indikator tertentu karena hal ini dapat memotivasi karyawan dalam bekerja; (2) Perusahaan diharapkan dapat memberikan perhatian yang lebih kepada karyawan sebagai bentuk perhatian untuk membentuk mental kerja yang lebih bersemangat; (3) Karyawan perlu memiliki sikap komitmen kerja dengan loyalitas yang tinggi dalam bekerja.
Menuju “Makassar Kota Makan Enak”: Analisis Word of Mouth, Citra Destinasi dan Kuliner
Authors: Zaenal Faisal Akbar , Hasan Lily Dianafitry , Anas Muhammad
Published: July 2024

Pariwisata sebagai industri berkontribusi dalam peningkatan PAD. Salah satu strategi dalam menciptakan wilayah sebagai daerah tujuan wisata melalui branding.  Penelitian ini bertujuan untuk melakukan evaluasi terkait branding Kota Makassar sebagai Destinasi kuliner enak. Penelitian ini mengkaji hubungan antara strategi branding, citra destinasi, citra kuliner, dan variabel word-of-mouth. Penelitian ini menggunakan pendekatan kuantitatif melalui survei kuesioner terhadap 40 responden. Penelitian ini menggunakan non-probability sampling, seperti metode accidental dan captive sample. Hasil uji F menunjukkan bahwa electronic word of mouth, destinasi, dan citra kuliner berpengaruh terhadap kunjungan wisatawan ke Kota Makassar. Nilai Fhitung sebesar 63,343, dan nilai Sig. Nilai tersebut sebesar 0,000, lebih kecil dari nilai signifikansi yang telah ditentukan yaitu 0,05. Oleh karena itu, hipotesis alternatif (Ha) diterima dan hipotesis nol (Ho) ditolak. Kesimpulannya, kampanye yang masif diperlukan untuk mempromosikan Makassar sebagai kota makan enak.
INTEGRATION OF HYBRID ENERGY PLANT OPERATION
Authors: Selikhov Yu. A. , Gorbunov K. O. , Stasov V. A.
Published: July 2024

Integrated use means the use of several energy sources, all at the same time or in some combination. At the same time, it is possible to use exclusively renewable sources, which significantly limits user capabilities. More common and justified from many points of view is the use of both renewable and traditional sources, autonomous (universal boilers, diesel generators, gas turbine units, etc.) or centralized (power grid) sources. A correct assessment of such a combined energy system also requires taking into account the main component of the system - the consumer, that is, taking into account the features of the local network and nearby consumers, which will have a direct or tangible indirect effect on the operating mode of the complex of renewable sources. To ensure adequate power quality, energy storage systems can be used, and the need for them depends on the discreteness of energy flows and the requirements for power quality. In foreign terminology, combined systems are often called hybrid, reflecting the diversity of both energy sources and methods of combining them (sometimes this name extends to arbitrary complexes). However, the term “hybrid power supply” usually refers to a combination of installations using renewable and traditional energy sources.
The article presents a new hybrid energy system that provides private households with electricity, hot water supply, heating and hot air in the required temperature range for comfortable living. Together with a wind power generator and an electric water heater, a heat pump, electricity and heat accumulators are used, which allows: - reducing the cost of thermal energy by reducing material consumption and equipment costs, saving organic fuel; produce electricity and send the excess to the state power grid; reduce heat load and environmental pollution. The automation system allows you to control the hybrid installation without human intervention all year round.
EXPEDIENT REGENERATION PERIODS FOR NITROCELLULOSE POWDER CHARGES WITH LONG SHELF LIFE AND THE DURATION OF THE POST- REGENERATION PERIOD OF THEIR LIFE CYCLE
Authors: Anipko O. , Baulin D.
Published: July 2024

Currently, a problem in many countries of the world is the presence in arsenals, bases and warehouses of a large number of various ammunition that are beyond the guaranteed storage period. The lack of ammunition production capacity in Ukraine has led to the fact that currently there are ammunition in use whose storage time exceeds 30 years.
An analysis of the research showed that after 25 years of storage, due to changes in the energy characteristics of the powder charge, changes occur in the ballistic characteristics of the weapon, which cannot be corrected by introducing amendments to the firing settings. The question arises about the advisability of using such ammunition, both in accurately performing fire missions and operating weapons in general, and in the field of personnel safety.
The complex problem of assessing the state of charges is shown, associated with the lack in the state of a reliable system for monitoring the state of powder charges of ammunition, the development of technology for their regeneration, disposal and the possibility of using it for its intended purpose. The first of these problems is key, since the further extension of the life cycle of ammunition depends on its results.
Experimental studies have confirmed that changes in the chemical composition of nitrocellulose powders are observed during long-term storage. The change in color of the powder elements confirms the chemical reactions occurring in them with a gradual decrease in their mass.
It is presented that during the regeneration process the mass of the powder charge increases by 3 % by saturating the nitrocellulose with hydrogen.
The priority time frames for when regeneration gives the maximum effect are graph- ically shown.
Analyzing the results of the study, using the ammunition operation model, it was proposed for the first time to use a period after regeneration in the life cycle of powder charges, which makes it possible to determine the time of expedient restoration of the characteristics of gunpowder. It will fluctuate a little for different batches of gunpowder, but, with reasonable probability, its time frame can be determined at 25–27 years.
It is predicted that it will be possible to technologically increase the effect of regeneration to 5 %. This will correspond to the restoration of properties to the level of guaranteed operation and a further extension of the operation of the gunpowder by 2 times.
STUDY OF THE EFFECTIVENESS OF THE APPLICATION OF COMPLEX GEOLOGICAL AND TECHNOLOGICAL MEASURES ON THE EXAMPLE OF GAS-CONDENSATE GENERATION IN THE CENTRAL PART OF THE PRIAXIAL ZONE OF THE DNIPROV-DNETZ BASIN
Authors: Shcherbyna A. V.
Published: July 2024

The field development system is the basis of hydrocarbon production, as it ensures the achievement of the necessary technical and economic indicators. Therefore, a high-perfor- mance development system is necessary to ensure maximum profit in the shortest possible time. Empirical studies, analysis and assessment of the effect of implementing a complex of geological and technological measures on the operational facility of a gas condensate field in the central part of the peri-axial zone of the Dnieper-Donets Basin were carried out in order to find methods for improving the existing gas and gas condensate field development systems and increasing gas extraction rates. It is shown that due to hydraulic fracturing, drilling and transfer of wells to the production facility during the five years of production of the produced gas, it is 7.8 % more than in the previous 21 hours, the rate of development of the field from 2015 to 2019 increased from 2.52 %. to 7.9 %, the average well yield increased by 83 % with an increase in the operational fund by 55 %. The results of studies of the effect of the application of geo- logical-technological measures are shown in the form of graphical dependences of the change in the rate of sampling on the number of production wells over time, the rate of daily gas sampling on the number of conducted geological-technological measures on the researched operational object over time. It has been determined that the main driver of the increase in gas production is the hydraulic fracturing of the formation in most of the operational wells, thanks to which the average increase in the output of the wells is 425 %. According to the results of geological and industrial data processing and analysis of changes in the rate of daily gas extraction over time, the effect of the performed operations is divided into three time segments lasting 15–18 months. The decrease in the duration of the effect from the increase in the fund of production wells and the conduct of hydraulic fracturing of the reservoir is due to the decrease in the volume of reservoir energy, therefore the investigated complex of measures will have the greatest effect when implemented at the initial stage of the development of a reservoir with similar geological parameters.
ASSESSMENT OF THE LEVEL OF ENERGY EFFICIENCY OF A SCHOOL TAKING INTO ACCOUNT THE USE OF LOCAL RENEWABLE ENERGY SOURCES
Authors: Deshko V. , Bilous I. , Holubenko O. , Serdechnyi P. , Yarkova N.
Published: July 2024

Energy efficiency is one of the key topics that have become very relevant in recent years. In buildings, as the final consumers of energy, the greatest potential for energy saving is concentrated. And at the same time, an important component of energy efficiency is the optimal use of energy resources, where the lion's share falls on the consumption of thermal energy. In this context, heating schedules become an important tool for achieving this goal. In this article, the authors investigate the energy efficiency of different heating and ventilation modes for a school located in two climatic zones of Ukraine: I (Kyiv) and II (Odesa). Using the Design-Builder software, which is based on the EnergyPlus model, the authors model five intermittent modes for the heating and ventilation system. The authors also compare the energy efficiency of different heat sources: a boiler on biofuel, a heat pump and a solar panel. It was found that the introduction of heating modes according to the schedules allows to reduce energy consumption for heating by 10 % to 20 % depending on the mode and climatic zone, and the use of renewable energy sources based on the introduction of intermittent heating and ventilation modes for the school shows efficiency at 79 %-80 %. The authors also analyze the impact of thermomodernization of enclosing structures on the energy efficiency of buildings. The conclusion on the introduction of intermittent heating modes for non-insulated buildings is an extremely effective measure for energy saving, and the impact of the measure on energy saving of the building will be noticeable even after thermal insulation. The implementation of all improvements allows reducing energy consumption for heating by 90 %.