bluuebunny/crossref_metadata_2025 huggingface dataset:
Оцінка характеристик закапотованого поворотного гвинтовентилятора в польотних умовах
Authors: Plakushchyi Dmytro , Kravchenko Ihor
Published: August 2024

The subject of this study was the operating mode of the ducted rotary propfan. The object of this research was a ducted propfan with rotating blades of the impeller of an ultra-high bypass ratio turbopropfan engine (m=20). The purpose of this work was to evaluate the influence of the blade installation angle on the characteristics of the ducted propfan of an ultra-high bypass ratio turbopropfan engine (m=20) under flight conditions. To achieve this purpose, the following tasks were solved: modeling the flow in a ducted propfan at a height of H=11 km when changing the blade installation angle from +10 to -5º from the basic installation angle in the range of Mach numbers at the inlet from 0.5 to 0.7; calculate the efficiency, pressure ratio, and thrust force of the ducted propfan under the studied operating conditions. During the mathematical modeling of the flow in the ducted propfan, the resistance of the duct was not considered. The research was carried out using a numerical experiment method with ANSYS CFX. The geometric model of the ducted rotary propfan was built in the NX. The mesh model was made in the ICEM and has a block structure. Results: The blade installation angle is one of the important factors affecting the efficiency, the pressure ratio, the thrust force, and other parameters and characteristics of the ducted propfan of an ultra-high bypass ratio turbopropfan engine. The use of a rotary impeller in a propfan improves the propfan characteristics over the entire range of operating modes. In flight conditions at an altitude of 11 km in the range of Mach numbers at the entrance M=0.5...0.7, when turning the blade of the impeller ducted propfan to a negative angle β=-5º, the thrust force decreased by 6.2...10.8 %, and by changing the installation angle to β=+10º, the trust force decreased by 3.4...42.6 %. Changing the blade installation angle of the impeller-ducted propfan led to a decrease in the pressure ratio. The nature of the dependence is similar to the nature of the changes in trust force. The efficiency of the ducted propfan with a rotary blade increased from 8.7...9.1 % to 1.8...3.4 % for Mach numbers M = 0.5 and M = 0.6 when changing the installation angle of the impeller blade to β=+5º and β=+10º. When the blade was rotated by an angle of β=-5º, the efficiency decreased by 13.6%–14.5% for the entire considered range of Mach numbers. The scientific novelty and practical significance of the results of the research consists in the fact that new data have been obtained on the study of the characteristics (efficiency, pressure ratio increase, thrust force) of the ducted propfan of an ultra-high bypass ratio turbopropfan engine (m=20) and a rotary impeller blade. The received recommendations regarding the characteristics of the ducted rotary propfan of an ultra-high bypass ratio turbopropfan engine are expedient for use in the creation of promising aviation engines.
Визначення теплофізичних характеристик композиційних матеріалів при високих температурах
Authors: Borovyk Dmitry , Yevdokymenko Yuriy , Frolov Gennady
Published: August 2024

This article discusses a methodology for determining the thermophysical characteristics of composite materials at high temperatures. The primary focus is on improving methods for determining the thermal conductivity of materials used in the aviation and space industries. The proposed methodology accounts for material loss from the surface during heating, which increases the accuracy of thermal conductivity calculations. The thermal conductivity was determined by solving the inverse heat conduction problem using a computer model of heat transfer in a flat sample in a one-dimensional formulation. The model was built using the COMSOL Multiphysics® software, which is designed for finite element calculations for various multiphysics problems. The model consists of the following components: 1) initial conditions (ambient temperature); 2) boundary conditions; 3) material properties (density, temperature dependencies of specific heat capacity and thermal conductivity). The boundary conditions are the experimental time dependencies of the temperature of the heated surface and the heat flux from the back (cold) surface due to radiative cooling. The inverse heat conduction problem in the model was solved by iteratively calculating the temperature of the sample’s back surface while simultaneously adjusting the sought temperature dependence of the thermal conductivity coefficient. The iteration procedure terminated when the calculated back surface temperature matched the experimental one. The model includes a Prescribed Normal Velocity node to account for the effect of linear wear, which specifies the time-dependent wear rate. An industrial propane-oxygen welding torch serves as the source of one-sided heating of samples, allowing the study of materials at temperatures above 2000 °C. Temperature measurements on the opposite surfaces of the samples were performed using pyrometers with PC registration. The unique feature of the proposed methodology is the simultaneous determination of temperature fields in the samples, thermoerosive wear, and the emissivity coefficient at selected temperature values based on experimental results. For each subsequent sample temperature, the values of the listed model parameters are calculated based on previously determined values. The developed methodology was used to determine the thermophysical characteristics of the carbon-carbon composite material CCCM-88, which is a layered composite made of twill-weave carbon fabric with a density of 1.57 g/cm² and a porosity of 20%. The thermal conductivity coefficient of CCCM-88 in the temperature range up to 2000 °C varies from 3 to 8.2 W/m/K, and the linear wear rate at 2000 °C reaches 55 μm/s. The obtained values allow the experimental curve of the back surface temperature to be described with an error of approximately 2.2% and an absolute deviation of 35° at the end of the test when the hot surface temperature is 2000 °C.
Розрахунок критичної швидкості флаттера пера лопатки вентилятора
Authors: Voytenko Igor , Chygryn Valentin , Torba Yuriy
Published: August 2024

The tendency to create modern gas turbine engines requires shortening the development time, which includes: design, manufacturing, and finalization. Developers strive to reduce the cost of finalization, which involves changes in design and associated refinement costs. Special attention is given to the major engine design elements, such as the fan, compressor, and turbine. There is a tendency to develop algorithms to predict phenomena that exclude the resonant and unstable modes of operation of engine design elements at the design stage. This can significantly reduce the cost and time of conducting and reduce the work on strain gauging, including: dissection, purchase, and connection of special equipment, such as the current collector of strain gauge signals. Consequently, it can also reduce the time and cost of conducting engine field tests, with potential repetitions after the anticipated design modifications. In this article, some developments are suggested, assuming the development of this type of prediction during the design stage. According to the numerical modeling results, the natural frequencies of the bending and torsional vibrations of the bandaged fan blade above the bandage flange were determined. The obtained results correlate well with the modeling results for the vibrations of the blade ring assembled with the disk. In addition, the natural frequencies were confirmed by the results of acoustic testing, and the occurrence of increased stresses on them was demonstrated by strain gauging and the use of alternative methods in full-scale engine tests. By calculating the critical flutter speed of the fan blade and its dependence on the relative flow velocity of the peripheral section of the blade profile and the relative velocity at the radius of the bandage flange, the possibility of self-oscillations of the blade feather section above the bandage flange of the bending-torsional flutter type at any external perturbations in the operating mode was determined.
Оцінка впливу анізотропних властивостей монокристалічних лопаток турбін авіаційних газотурбінних двигунів на їх довготривалу міцність
Authors: Nemanezhyn Yevhen , Lvov Gennadiy , Torba Yuriy
Published: August 2024

Long-term static strength is one of the most important parameters to be calculated at the life-time design stage of aircraft engine turbine blades. The importance of studying and modeling this parameter is based on many factors. In particular, it should be noted that one of these factors is the peculiarities of the anisotropic characteristics of single-crystal turbine blades made of nickel heat-resistant alloys for a wide temperature and power load range. Another important factor is the different crystallographic orientations of the single crystals. The analysis of the literature has shown that to date, there are no general unified approaches for assessing the long-term strength of single-crystal turbine blades. The main approaches described in scientific literature include micromechanical (physical, crystallographic) and phenomenological models for assessing the durability of structures made of single-crystal heat-resistant nickel alloys. Many proprietary methods have also been developed in the scientific community. The majority of existing approaches, which are described in several literature sources, have many advantages and disadvantages. In this study, we propose a comprehensive approach for calculating and evaluating the long-term strength of single-crystal gas turbine blades. The proposed algorithm is based on obtaining the equations of the Larson-Miller parameter distribution by approximating the literature experimental data for different crystallographic orientations of turbine blades. The basis for numerical modeling of the distribution of the Larson-Miller parameter over the volume of the turbine blade was the calculation of creep according to Norton’s law. The equations of the Larson-Miller parameter for different crystal orientations obtained during the approximation were used in the finite element modeling of its distribution on the example of a cooled high-pressure turbine blade. Calculations were performed using the capabilities of the ANSYS Workbench software package. Based on the computation results, the time-to-failure was modeled for different crystallographic orientations and temperature states of the blade.
Evaluasi Penerapan Sanitasi di Tempat Penjualan Ikan dan Jumlah Mikroba Pada Ikan Tongkol (Eutinnus Affinis) di Pasar Sentral Kwandang
Authors: Salehe Roslan , Astuti Ida , Ngabito Meriyanti , Noor Sri Yuningsih
Published: August 2024

Sanitasi pasar merupakan upaya pengawasan terhadap kegiatan yang berlangsung di lingkungan pasar, terutama yang berkaitan erat dengan timbulnya atau menularnya suatu penyakit. Kondisi sanitasi pasar yang tidak memenuhi syarat memudahkan bakteri berkembang biak sehingga menyebabkan infeksi dan dapat menularkan berbagai penyakit. Tujuan penelitian adalah untuk mengetahui penerapan sanitasi dan jumlah mikroba pada ikan Tuna (Eutinnus affinis) yang dijual di Pasar Induk Kwandang. Metode penelitian yang digunakan adalah observasi lapangan dan uji laboratorium. Penerapan sanitasi di pasar induk Kwandang belum memenuhi syarat sanitasi dan jumlah bakteri terendah pada sampel Eutinnus affinis terdapat pada sampel L dengan jumlah 1,6 x 103Kol/gr dan bakteri tertinggi pada sampel M dengan jumlah bakteri 1,5 x 106 Kol/gr. Berdasarkan hasil penelitian dapat disimpulkan bahwa pelaksanaan sanitasi di Pasar Sentral Kwandang belum memenuhi syarat sanitasi. Sedangkan plat number/TPC total 15 sampel ikan tuna sebesar 99% masih memenuhi standar Nasional Indonesia yaitu < 5×105.
Perbedaan Mata Pancing Ulur Terhadap Hasil Tangkapan Ikan Kuwe (Cranax Melampyus) di Kecamatan Biau Kabupaten Gorontalo Utara
Authors: Olii Muhammad Yasin Umsini Putra , Giu Yomansah Sukma , Apriliani Izza Mahdiana
Published: August 2024

Nelayan handline cenderung hanya menggunakan satu ukuran kail dalam kegiatan menangkap ikan. Sementara itu, kebutuhan hasil tangkapan yang maksimal cukup tinggi. Tujuan penelitian ini adalah untuk mengetahui pengaruh perbedaan ukuran mata pancing terhadap hasil tangkapan ikan selar raksasa (Cranax melampyus) di Kecamatan Biau Kabupaten Gorontalo Utara. Penelitian ini dilaksanakan selama dua bulan mulai bulan Januari sampai April 2019, di Kecamatan Biau, Kabupaten Gorontalo Utara. Jenis ukuran mata pancing yang digunakan adalah tiga ukuran mata pancing yang bernomor 20, 19 dan nomor 18. Data yang diambil dalam penelitian ini adalah jumlah ikan kuwe yang tertangkap, panjang dan beratnya. Untuk menguji pengaruh perbedaan ukuran mata kail, dilakukan analisis varians ANOVA. Hasil pengujian menunjukkan menerima H1 dan menolak H0, ukuran mata pancing nomor 20, 19 dan nomor 18 berpengaruh terhadap hasil tangkapan ikan kuwe dengan nilai signifikansi (P-Value) uji Anova F sebesar 0,001 < 0,05.
KONDISI FASILITAS PELABUHAN DAN PRODUKSI PERIKANAN DI PELABUHAN PERIKANAN PANTAI (PPP) ERETAN
Authors: Apriliani Izza Mahdiana , Maesantika Lala , Kurniawan Dwiharto , Surahmat Reanita Juhaeriah
Published: August 2024

Pelabuhan Perikanan Pantai (PPP) Eretan merupakan salah satu pelabuhan di Kabupaten Indramayu yang memiliki peranan penting dalam pengembangan perekonomian di Kabupaten Indramayu. Namun, produksi perikanan di PPP Eretan mengalami penurunan pada tahun 2018-2022 (DKP 2023). Kondisi fasilitas di PPP Eretan penting untuk dipahami dalam rangka menjaga keberlanjutan produksi perikanan. Kondisi fasilitas pelabuhan, seperti dermaga, gudang penyimpanan, fasilitas penanganan ikan, serta infrastruktur pendukung lainnya, dapat memainkan peran penting dalam kegiatan produksi perikanan. Penelitian ini bertujuan untuk mengidentifikasi kondisi fasilitas pelabuhan terhadap produksi perikanan. Metode penelitian ini menggunakan analisis deskriptif kuantitatif dan metode komparatif untuk menganalisis data dengan membandingkan kelengkapan fasilitas dan tingkat operasional pelabuhan perikanan terhadap ketentuan yang berlaku. Kondisi fasilitas di PPP Eretan menunjukkan bahwa fasilitas pelabuhan memenuhi persyaratan. Namun, beberapa fasilitas fungsional dan penunjang memerlukan sedikit perbaikan. Penurunan produksi disebabkan karena berkurangnya frekuensi pembongkaran ikan di PPP Eretan, maraknya pemakaian alat tangkap yang tidak ramah lingkungan, dan pengiriman komoditas serta jumlah hari kerja nelayan akibat pandemi Covid-19.
ANALISIS KELAYAKAN USAHA BUDIDAYA UDANG VANNAMEI DI KECAMATAN DUHIADAA KABUPATEN POHUWATO
Authors: Kahala Hendriyanto , Adipu Yulianty , Ngabito Meriyanti
Published: August 2024

Analisis kelayakan usaha merupakan suatu kegiatan yang mempelajari usaha atau bisnis yang akan dijalankan dalam rangka menentukan layak atau tidak usaha tersebut dijalankan. Daerah kabupaten pohuwato, Kecamatan Duhiadaa, merupakan salah satu tempat produksi usaha tambak.  Penelitian ini bertujuan untuk mengetahui kelayakan usaha tambak udang untuk mengetahui faktor apa saja yang menjadi hambatan dalam kelayakan usaha tambak udang di Kecamatan Duhiadaa, Kabupaten Pohuwato. Hasil analisis ini digunakan sebagai bahan pertimbangan dalam mengambil keputusan dengan memperhitungkan biaya alat ukur yang digunakan antara lain biaya total, penerimaan usaha dan pendapatan usaha. Usaha budidaya polikultur udang  vanamei di Kecamatan Duhiadaa, Kabupaten Pohuwato memberikan keuntungan dalam satu tahun sebesar Rp. 149.800.000. Hal ini dapat diketahui bahwa usaha budidaya udang di Kecamatan Duhiadaa  layak untuk diusahakan perikanan.
ANALISIS KELAYAKAN PANGKALAN PENDARATAN IKAN TILAMUTA PROVINSI GORONTALO
Authors: Muntala Adi Putra , Astuti Ida , Ngabito Meriyanti
Published: August 2024

Pangkalan pendaratan ikan berpotensi mendongkrak perekonomian suatu daerah sekaligus meningkatkan pendapatan negara dan pendapatan asli daerah. Tujuan dari penelitian ini adalah untuk mengetahui kondisi sarana dan prasarana pangkalan pendaratan ikan Tilamuta yang ditinjau dari pengembangan fasilitas pokok, fungsional, dan penunjang. Metode yang digunakan dalam penelitian ini yaitu metode survey dan komparatif untuk mendapatkan gambaran mengenai kriteria teknis dan operasional pelabuhan perikanan. Berdasarkan hasil penelitian kondisi sarana dan prasarana Pangkalan Pendaratan Ikan (PPI) Tilamuta yang ditinjau dari pengembangan fasilitas pokok, fungsional dan penunjang dan juga Pangkalan Pendaratan Ikan Tilamuta (Tipe D) kriteria teknis dan operasional pelabuhan perikanan sudah memenuhi standar untuk ditingkatkan statusnya ke Pelabuhan Perikanan Pantai (Tipe C).
ANALISIS KARAKTERISTIK MARSHALL CAMPURAN AC-WC MENGGUNAKAN FILLER ABU BATU ZEOLIT
Authors: Nento Sartan , Djau Rahman Abdul , Bumulo Nasir , Dayanti Wiwin
Published: August 2024

Materials that are often used as fillers in the AC-WC asphalt mixture are cement and stone ash, because these materials are often used so that supplies are increasingly expensive. For this reason, it is necessary to have new innovations using other alternative materials as fillers which are still quite abundant and easy to obtain, as well as to determine the effect of zeolite as a filler replacement.This research aims to determine the Marshall characteristics of the ac-wc mixture using zeolite rock ash filler, to determine the optimum asphalt content value in the ac-wc asphalt mixture using zeolite rock ash filler. This study used zeolite rock ash filler with variations of 0% 20% 60% 80% and 100% with an asphalt content of 5.5%.From the results of this study, it was found that all variations 0% 20% 60% 80% and 100% met the test specs according to the 2010 revision III. The addition of zeolite rock ash filler variation is the most optimum at a mixture of 100% filler content from the total weight of the mixture.Material yang sering digunakan sebagai filler pada campuran lapis aspal AC-WC adalah semen dan abu batu, karena material tersebut sering digunakan sehingga persediaannya semakin mahal. Untuk itu, perlu ada inovasi baru menggunakan alternatif  bahan lain sebagai filler yang masih cukup banyak persediaannya dan mudah didapatkan, juga untuk mengetahui pengaruh zeolit sebagai penggati filler.Peneletian ini bertujuan untuk mengetahui sifat karakteristik Marshall campuran ac-wc menggunakan filler abu batu zeolit, untuk mengetahui nilai kadar aspal optimum pada campuran aspal ac-wc dengan menggunakan filler abu batu zeolit. Penelitian ini menggunakan filler abu batu zeolit dengan variasi 0% 20% 60% 80% dan 100% dengan kadar aspal 5,5%.Dari hasil penelitian ini didapatkan bahwa semua variasi 0%  20% 60% 80% dan 100% memenuhi spek pengujian sesuai sesuai pada bina marga 2010 refisi III. Kadar penambahan variasi filler abu batu zeolit paling optimum pada campuran kadar 100% filler dari berat total campuran
STUDI KEMIRINGAN DRIVE PULLEY TERHADAP PERUBAHAN DAYA DAN TORSI PADA SEPEDA MOTOR TRANSMISI OTOMATIS SISTEM V-MATIC
Authors: Towijaya T , Iskandar Isdaryanto
Published: August 2024

Changing of design is often occurs in the field of engineering, especially the automotive field, which is have a rapid and diverse development. One of them is a change or modification in the drive pulley of the V-Matic or CVT (Continuous Variable Transmission) transmission system. These modifications are generally to increase the performance of the motorcycle for certain purposes. Changing of design that are often made by a matic motorbike users are at the tilt of angle of the drive pulley.This study aims to determine the effect of the standard drive pulley angle of 14 degrees and the modified drive pulley of 13.5 degrees, with different angles, the changes in power and torque that occured on motorcycle will be analyzed. Performance testing was carried out using the Dynotest instrument and the fuel was filled with Pertamax. Based on the test results, it was found that using a modified drive pulley produces greater power and torque, namely a maximum power of 7.7 HP at 4450rpm and a maximum torque of  29.49 N.m at 1810rpm than the standard, which is a maximum power only 6.7 HP at 4800 rpm and maximum torque of 23.14 N.mat 1970 rpm. From this data, the percentage of increasing in power is 14.9 percent and torqueis 27.44 percent.Perubahan desain dalam bidang rekayasa kerap terjadi pada bidang otomotif yang mengalami perkembangan pesat dan beragam. Salah satunya adalah perubahan/modifikasi pada bagian drive pulley transmisi otomatis sistem V-Mativ atau CVT (Continuous Variable Transmission). Modifikasi ini umumnya dilakukan untuk menaikan. performa sepeda motor untuk tujuan tertentu perubahan yang sering dilakukan oleh para pengguna sepeda motor metik adalah mengubah sudut kemiringan drive pulley. Penelitian ini untuk mengetahui pengaruh sudut kemiringan drive pulleystandar 14o dan drive pulley modifikasi 13,5o, dengan sudut yang berbeda ini akan dianalisi perubahan daya dan torsi yang terjadi pada sepeda motor. Pengujian performa dilakukan menggunakan instrumen Dynotest dan sepeda motor diisi dengan menggunakanbahan bakar pertamax. Berdasarkan hasil pengujian didapat bahwa menggunakan drive pulley modifikasi menghasilkan daya dan torsi lebih besar, yaitu daya maksimum sebesar 7,7 HP pada putaran 4450 rpm dan torsi maksimum sebesar 29,49 N.m pada putaran 1810 rpm. Kondisi standarnya yaitu daya maksimum sebesar 6,7 HP pada putaran 4800 rpm dan torsi maksimum sebesar 23.14 N.m pada putaran 1970 rpm. Dari data tersebut di dapat persentase kenaikan daya sebesar 14,92% dan torsi sebesar 27,44%.
ANALISIS PENCAHAYAAN TERHADAP KENYAMANAN VISUAL PADA RUANG STUDIO ARSITEKTUR UNIVERSITAS POHUWATO
Authors: Umar Indriani
Published: August 2024

Natural lighting is lighting that has a light source that comes from the sun. Natural light can be entered through the openings. The purpose of the lighting simulation is to determine the solar radiation entering the building so that it can be controlled for optimal natural indoor lighting. So get indoor thermal comfort and also good visual effect. The type of research used in this research is descriptive quantitative research. This research method uses a simulation method with the Ecotet application. The results from research with Ecotet simulations, the lighting in the architecture studio room has a value of 100 to 2000 LUX, from the simulation results in the room the dominance of 100 LUX is 70%, because the openings/windows of the room are not exposed to direct sunlight during the day and only come from natural light. reflection (diffuse) or skylight, but the room does not experience darkness because it maximizes light by using very large openings/windows which have an impact on the visual effect in the room.Pencahayaan alami adalah pencahayaan yang memiliki sumber cahaya yang berasal dari matahari. Pencahayaan alami dapat dimasukkan melalui bukaan. Tujuan dari simulasi pencahayaan adalah untuk mengetahui radiasi matahari yang masuk ke dalam bangunan agar dapat di control untuk penerangan dalam ruangan secara alami dengan optimal. Sehingga mendapatkan kenyamanan termal dalam ruangan dan juga efek visual yang baik. Jenis Penelitian yang digunakan dalam penelitian ini adalah penelitian secara kuantitatif deskriptif. Metode penelitian ini menggunakan metode simulasi dengan aplikasi Ecotet. Hasi dari penelitian dengan simulasi Ecotet, penerangan di dalam ruangan studio arsitektur memiliki nilai 100 sampai 2000 LUX, dari hasil simulasi dalam ruangan di dominasi 100 LUX sebesar 70%, karena bukaan/jendela ruangan tidak terkena matahari langsung selama siang hari dan hanya berasal dari cayaha pantulan (difus) atau cahaya langit, tetapi ruangan tidak mengalami gelap karena memaksimalkan cahaya dengan penggunaan bukaan/jendela yang sangat besar yang berdampak pada efek visual dalam ruangan.
Seminar Sex Education dan Bahaya NAPZA untuk Mereduksi Kenakalan Remaja Desa Sumbersari Megaluh Jombang
Authors: Anandita Septian Ragil , Rohman Muh. Khofif Luthfi , Franoto Andi , Zuhria Siti Aminatuz , Maksum Mohammad Ja'far Sodiq , Hidayatulloh Faisol
Published: August 2024

The purpose of this community service activity is to increase youth knowledge about sex education and drugs and to innovate in handling and eradicating drug abuse in the Sumbersari village environment. Sumbersari village itself is quite minimal in knowledge about sex education and drugs in adolescents. Even though Sumbersari village is a village that has a thick religious culture. However, they consider sex education and drugs to be negative things. Research is an activity process of seeking and finding answers that are used to solve a problem. Judging from the data obtained and making direct observations. The research method used is Community Based Research (CBR). Implementation of community service activities in the Community Partnership Program (PKM) scheme. The implementation of the program carried out in this service is an extension and assistance program for the community, especially among adolescents in preventing drug abuse and the importance of sex education. This program is a form of implementation in the form of dedication. This program is also implemented as a program that is needed by the Sumbersari village community. Community service activities have been successfully carried out and running smoothly. The success of the activity can be seen from the enthusiasm of the participants and the evaluation results of the activities which are considered good or even very good for several aspects. Hopefully, this seminar on sex education and drugs will increase the reduction of juvenile delinquency from other aspects, such as smoking habits in early childhood, rampant promiscuity in adolescents, and adolescent dependence on certain drugs.
SOSIALISASI IMPLEMENTASI KURIKULUM MERDEKA BELAJAR PADA GURU TINGKAT SD/MI DI DESA JANTI KECAMATAN MOJOAGUNG JOMBANG
Authors: Sirojudin Didin Sirojudin , Lilawati Emi , Waslah Waslah , Agustin Wiranda Dwi , Hamidah Salsabilla , Sari Ayu Novia , Saputra Sharul
Published: August 2024

The Seminar on the Implementation of the Merdeka Curriculum at MI Al-Muâ€™awwanah is an important event aimed at discussing and promoting the implementation of the Merdeka Curriculum in the Madrasah Ibtidaiyah (MI) Al-Muâ€™awwanah. The Merdeka Curriculum represents an educational innovation that allows MI to be more adaptive and responsive to current educational developments. This seminar will address key aspects of the Merdeka Curriculum, including student-centered learning methodologies, competency development, and assessments that focus on deep understanding. Additionally, the seminar will also discuss the challenges and opportunities in implementing the Merdeka Curriculum at MI Al-Muâ€™awwanah. It is expected that this seminar will provide valuable insights for educators, teaching staff, and relevant stakeholders in their efforts to enhance the quality of education at MI Al-Muâ€™awwanah through the innovative and relevant implementation of the Merdeka Curriculum.
 
Keywords: Seminar, Implementation, Merdeka Curriculum, MI Al-Muâ€™awwanah.
STATISTICAL ANALYSIS OF THE INFLUENCE OF TNC ON THE FUNCTIONING OF NATIONAL ECONOMICS ON THE GLOBAL MARKET
Authors:   Poltava University of Economics and Trade, Romaniukha Daria , Flehantova Anna ,   Poltava University of Economics and Trade
Published: August 2024

The conducted study showed that transnational corporations (TNCs) play a decisive role in the process of adaptation of countries to the challenges of economic globalization, especially for countries with a low level of economic development. Correlation analysis confirmed the hypothesis regarding the importance of foreign direct investment (FDI) in the economy of countries due to the expansion of TNCs. This contributes to scientific and technical progress, the increase of production capacities and the activation of the international movement of factors of production, which positively affects the gross domestic product (GDP). Two-factor cluster analysis showed that the country's position in the world economy depends significantly on the activities of TNCs and the volume of FDI. Based on the results of the Euclidean distance calculation, four clusters were formed, each of which contains countries with a different level of economic development. This confirms the dependence of national economies on financial investments made by TNCs.
TRANSFORMATION OF BUSINESS MODELS OF PRINTED MEDIA IN TIMES OF DIGITALIZATION
Authors:   Kyiv National Economic University named after Vadym Hetman, Vdovychenko Andrii
Published: August 2024

The global trend of media consumption leaning further into the digital area, as opposed to traditional media, namely printed media, has been accelerated even further in Ukraine with the annexation of Crimea and parts of Donetsk and Luhansk regions. Not only were the distribution routes scaled down, but the advertisement market was also substantially affected in a negative way. The same acceleration, but on a much bigger scale, happened with the beginning of the full-scale russian invasion in February 2022. Because of that a search for new business models for traditional media outlets stands as the main goal of this article. There are currently 15 different business models on the global media market. This article focuses only on the 9 most potentially relevant for Ukrainian media outlets in the field of printed media. Those models differ based on the interaction target, such as consumers (Business to Consumer), advertisers, and other stakeholders (Business to Business). The described models are also characterized based on required investment and other essential resources such as internal experts, sophisticated readers data etc., potential earnings and revenue, as well as risks related to implementing each model. The article focuses on traditional models, e.g., paid content, syndicated content, events, and brand licensing, but also relatively new ones like educational services, IT-solutions, archivist services, affiliate marketing etc. Special attention is given to the club membership model as one of the most promising business models for the future of the publishing business. Examples from international and Ukrainian media businesses of implementing several of the described models are also further presented in the article. Finally, the importance of choosing the optimal model for media organizations based on the organization’s assessment of potential, strong and weak points, potential risks on both supply and demand sides, and other various factors are highlighted and justified.
Продуктивний та біохімічний потен- ціал листостеблової маси редьки олійної як крите- рій її можливого використання у якості сировини для виробництва біогазу
Authors: Цицюра Я.Г.
Published: August 2024

Метою досліджень було оцінити біогазовий потенціал редьки олійної з позиції комплексу продуктивних та біохімічних показників якості сформованої надземної біомаси спираючись на світовий досвід у визначенні ролі головних критеріїв доцільності за варіанту проміжного (літнього) її вирощування.Методи. Дослідження було проведено впродовж 2014–2023 років на базі дослідного поля Вінницького НАУ на сірих лісових грунтах з середнім потенціалом родючості. Повторність у досліді чотирьохразова. Розміщення варіантів – систематичне у два яруси. Дослід передбачав визначення виходу біомаси у сухій речовині, динаміка грунтового покриття та комплексу базових біохімічних показників визначальних у оцінці придатності рослинної сировини бо біогазової ферментації на основі системного підходу факторного аналізу багатокритеріальної підтримки прийняття рішень. Результати. Встановлена можливість ефектиного використання сформованої за літнього (проміжного) строку сівби листостеблової маси редьки олійної у якості потенційної сировини для отримання біогазу. Доведений високий біопродуктивний потенціал редьки олійної у варіантах проміжних літній посівах із середній десятирічним потенціалом 2,82 т/га сухої речовини з досяжністю на 50–60 добу після сівби при рівні грунтового рослинного покриття у 75–80%. Встановлено, що за біохімічним портфоліо рослинної біомаси редька олійна не поступається широковживаним у біогазовій сфері хрестоцвітим культурам маючи багаторічне співвідношення C/N на рівні 10–18 одиниць, комплексну якість рослинної сировини на рівні 81,0% за вмісту клітковини на рівні 24,0% на суху речовину, вміст глюкозинолатів на рівні 19,7 μmol/г сухої речовини. Висновки. За рівнем біопродуктивності та адаптивності з огляду на співставне міжрічне варіювання показників та мінливості гідротермічних параметрів періоду формування листостеблової маси, а також базовими біохіиічними параметрами у системі факторного ана- лізу багатокритеріальної підтримки прийняття рішень та його складових доведена висока потенційна можливість використання листостеблової маси редьки олійної сформованої за літньої (проміжної) сівби із середнім рівнем атрибутивної нормалізованої критерійної оцінки 0,829 при міжрічній мінливості показника у 5,5%.
Сортові ресурси проса в Україні
Authors: Шевченко Н.В.
Published: August 2024

Мета. Проаналізувати придатність сортів проса до вирощування за комплексом господарськоцінних показників. Методи. Дослідження проводили на основі опрацювання Державного реєстру сортів рослин, придатних для поширення в Україні на 2024 рік і Офіційних описів сортів рослин та показників господарської придатності, представлених у Бюлетенях «Охорона прав на сорти рослин», розміщених у Інформаційно-довідковій системі «Сорт». Результати. Найвищу урожайність насіння забезпечують сорти проса: Переможне – 42,1 ц/га, Кеша – 36,0 ц/га, Дивовижне – 35,5 ц/га, Золотисте – 35,0 ц/га. Найстійкішими сортами до осипання насіння виявилися Живинка – 9,0 балів, Веселка – 8,6 балів, Незалежне – 8,3 балів. Найстійкішими до вилягання рослин виявилися сорти Особливе, Веселка – по 9,0 балів, Чабанівське, Незалежне, Сонечко Слобідське – по 8,5 балів, Заповітне, Полто, Скадо – по 8,4 бали. Найбільш посухостійкими сортами проса є Переможне, Альтернативне, Веселка, Живинка, Кеша, Особливе – по 9,0 балів, Ювілейне – 8,8 балів, Полто – 8,5 балів. Найстійкішими сортами до хвороб є Скадо, Альтернативне, Казкове джерело, Чабанівське, Дивовижне, Веселка, Заповітне, Живинка, Особливе та Корнбергер Міттельфрюе – по 9,0 балів. Найвищий вміст білка мали сорти Ювілейне, Вітрило – по 14,8%, Ярдуш – 13,7%, Новокиївське – 13,6%, Живинка – 13,5%. Найвищий вихід крупи був характерний для сортів Новокиївське 01 – 83,2%, Корнбергер Міттельфрюе – 81,0%, Веселка – 80,9%, Золотисте – 79,9%. Найменша плівчастість насіння була встановлена у сортів Новокиївське 01 – 12,9%, Корнбергер Міттельфрюе – 14,7%, Веселка – 14,9%. Висновки. Рекомендовані сорти проса, що відзначаються найвищою урожайністю насіння, стійкістю до посухи, хвороб, шкідників, осипання насіння та вилягання рослин. Також визначено сорти, що відзначаються кращими показниками якості урожаю: найвищим вмістом білка, виходом крупи та найменшою плівчастістю.
Creating a Mixed Reality Retail Experience With Present Hardware Limitations
Authors: Himanshu Aneja
Published: August 2024

In the retail context, Virtual Reality is great for building prominent brand identity and spectacle experiences while Augmented Reality allows users to explore products in their own comfort zones thus increasing users' purchase intentions (Bogicevic et al., 2019, Heller et al., 2019, Hilken et al., 2021). This research investigates methodologies that can be used to create a mixed-reality retail experience by combining the best aspects of Augmented and Virtual Reality under one system. The accompanied experience utilizes the passthrough capabilities of the Oculus Quest 2 VR headset, which allows users to switch between being completely immersed in a virtual environment (VR) and being in their own environment while seeing virtual objects overlaid (AR) to create a system that can seamlessly switch between both worlds. Furthermore, the research explores designing interactions and elements that would be pertinent in both AR and VR scenarios to offer an immersive and engaging mixed-reality experience.
"Knock on Wood": Creating a Decentred Finding Aid for the Montgomery Collection of Caribbean Photographs at the Art Gallery of Ontario
Authors: Sierra Luz
Published: August 2024

The Montgomery Collection of Caribbean Photographs comprises over 3,000 photographic objects dating from circa 1839 to circa 1940. It was amassed by Patrick Montgomery from 2005 to 2011 and was later acquired by the Art Gallery of Ontario in 2019. This project focuses on cataloguing 754 materials of the Montgomery Collection and creating a bilingual English-Spanish finding aid. It covers collection items dating circa 1839 to circa 1890 from the territories in the northern half of the Circum-Caribbean--the Bahamas, Bermuda, the Cayman Islands, Cuba, the Dominican Republic, Haiti, Jamaica, Puerto Rico, and Turks and Caicos. The finding aid addresses the sociohistorical context in which the collection material was produced, the AGO's acquisition, a summary of the catalogued material, intellectual arrangements of the material by geographic location depicted and by relevant subject, and biographical information about the makers. Including the spreadsheet catalogue with the scope of collection materials to this thesis.
Graph and Semantic Analysis Approach for Template Recognition in Large Scale Log Data
Authors: Crespo Claudia
Published: August 2024

Log files generated by software systems can be utilized as a valuable resource in data-driven approaches to improve system health and stability. These files often contain valuable information about runtime execution and to properly monitor them it is necessary to analyze an increasingly large volume of data logs. In this report, a graph mining technique for parsing logs that is source agnostic to the system is presented. This means that the technique can function regardless of the source of the logs, making it more scalable and reusable. This approach differs from existing techniques that rely heavily on domain knowledge and regular expression patterns, as it uses graph models and semantic analysis to detect patterns in the data with minimal user input. This makes it easy to implement in a variety of scenarios where application-based logs may differ significantly. This proposed technique has the potential to improve the observability and reliability of scalable software systems.
Alternative Ways of Historical Knowledge Dissemination: Black History on Instagram
Authors: Goguen Taia
Published: August 2024

Historical knowledge dissemination on social media platforms has become increasingly prevalent in the digital age. However, only few studies focus on the implications of learning historical knowledge from social media platforms, rather than focus on debatable areas of history. This research builds upon two studies in this area of research (Birkner & Donk; 2020, Liu; 2018). This research intervenes in this area of study by focusing on Black history on the social media platform Instagram. This research uncovers how Black history is framed on social media platforms, if and how Instagram users are learning from these Instagram posts, and why social media has become a prevalent tool for historical knowledge dissemination. This is done through a multimodal discourse analysis. This research provides a foundation for further inquiry into this area of study while also highlighting where further research in this area could go.
Improving Healthcare Data Usability for Clinicians and Patients
Authors: Delaney Steven
Published: August 2024

Healthcare organizations around the world are facing unprecedented challenges in providing healthcare services at lower cost, while improving the level of service to their patients. To reduce costs, while meeting the demand for better quality outcomes, emphasis is being placed on preventative efforts, better access, and a personalized patient-centric experience. Canada is moving toward a healthcare model in which the patient is at the centre of care. The lifeblood of meeting these challenges will be regulatory changes, improved data, and technology. Patient empowerment over their healthcare continuum and privacy of their data is now at the forefront of major healthcare decisions. Due to the vast number of elements involved, including government, industry, technology, data sources, facilities, healthcare scenarios and an increasing range of patients' expectations, any solution must be well orchestrated and in concert with the other variables. All advances in healthcare technology, including Artificial Intelligence (AI), real-time monitoring with wearables and injectables, consolidated and enhanced data, point to a very different world of medicine in the near future. A rich and current aggregation of patient data forms the backbone of advanced healthcare. We define data usability as the ability of a clinician to quickly locate and assimilate the right patient data to determine optimal treatment. The key measurements associated with the research are in the area of clinicians saving time and being provided advanced diagnostic capability. This manuscript posits that improving data usability will be key to successfully achieving two objectives, one for the clinician and one for the patient. 

These objectives are: 

Provide a method that allows patients to pre-record and dynamically change their privacy decisions to restrict what data can be viewed by a clinician and allows patients to view who has accessed their data.

Develop a data usability framework that will improve the usability of patient healthcare data empowering clinicians to more quickly identify and apply treatment to the benefit of the patient’s health. 

In this thesis, there are three contributions to the body of knowledge aligned with improving data usability for clinicians and patients. The first is the development of a new method to allow patients to manage the privacy of their data. The second is the creation of a framework comprised of an orchestration of features that collectively improve data usability for clinicians. The third contribution is the development of a new algorithm for defining and measuring data usability.
Instagram Versus Reality: The Effect of Social Media Beauty Filters on Consumer Perceptions
Authors: Shahrin Tashfia
Published: August 2024

Social Media Influencers (SMIs), who earn their living by sharing their product reviews, have become quite popular in social media advertising. They frequently use beauty filters to beautify their faces in their advertised posts. Application of beauty filters allows SMIs to transform their faces digitally and have visually appealing facial features. While this frequent use of beauty filters could cause negative societal effects in terms of altering beauty standards to be unrealistic, it is yet to be known how such use of beauty filters impacts consumer perceptions of the SMI or their advertised product. This thesis explores these impacts across three studies. The findings reveal that not using beauty filters is the best strategy to ensure positive reactions from consumers regarding SMIs' advertisements. The current work contributes to the literature by extending the knowledge of beauty filters and contributes to the laws that are in place about filter use.
Peran Sistem Informasi Akuntansi dalam Pengelolaan Dana Infak
Authors: Nursetiana Herni , Pangestu Feby Risqi , Aji Gunawan
Published: August 2024

Accounting Information Systems (AIS) are very important for various aspects of financial management, including infaq fund management in the digital era. One of the factors that can hinder the potential destruction of infaq at this time is the low level of public trust in infaq management organizations. This research aims to find out how technology can be used to manage infaq funds more efficiently and the benefits of implementing an accounting information system in increasing transparency and accountability in infaq fund management. The method used in this research is descriptive with a qualitative approach. The data analysis technique in this research was carried out by categorizing data, filtering data, and presenting data designed narratively. The results of this research conclude that the Accounting Information System is very important in increasing transparency and accountability in the management of infaq funds by providing accurate and relevant data in accordance with Islamic sharia principles. The use of technology in the Industry 4.0 era, including digital wallet applications, has made it easier to efficiently manage infaq funds and allows real-time communication. The use of digital payment methods, such as QRIS, further expands the reach and efficiency of fundraising, enabling donations via QR code scanning with common payment applications.
PEMBAHARUAN NIKAH BAGI MASYARAKAT MADURA DITINJAU DARI MASLAHAH (Studi Kasus Di Kelurahan Parit Lalang Kota Pangkalpinang)
Authors: Mahbubah Mahbubah , Suhendra Darmiko , Wildan Mursyidul
Published: August 2024

Marriage renewal is a belief carried out by the Madurese people as a way to strengthen household relationships from all unwanted things such as divorce. So the implementation of the Marriage Renewal that takes place in Parit Lalang Village, Pangkalpinang City has different views regarding its implementation for the surrounding community and not all of the Madurese people carry out the Marriage Renewal in Parit Lalang Village, only some of the Madurese people still have this belief. So this phenomenon encourages researchers to conduct research to look for the factors behind the Marriage Renewal process and will review Maslahah's implementation process.This research is qualitative research using a field approach (Field Research). The source of this research is primary data obtained from observations and interviews with couples who have carried out marriage renewal as well as religious figures who usually accompany the marriage renewal process to find out the reasons and consequences that occur after the marriage renewal process takes place. And equipped with secondary data as support.Based on the research results, the implementation of Marriage Renewal occurred because of household problems, namely the economy was not running smoothly, resulting in frequent arguments, loss of feelings of love and affection towards the partner, carried out as a form of commemorating the wedding day and so on. Then, regarding the marriage renewal process, there are couples who carry out marriage renewal more than once. So this is contrary to Islamic law, because the implementation that occurs in the field of the process is carried out in accordance with the pillars and conditions of marriage in general and in this process also provides a new dowry to the wife. So the law of marriage renewal which uses a new dowry in the marriage contract is the same as the husband admitting that the divorce will occur between them. If it is related to the Ushul Fiqh method, Maslahah is included in the Maslahah Mulgoh group, because it is contrary to the text, even though this action creates benefits for their household relations.
PERSPEKTIF HUKUM ISLAM DAN HUKUM POSITIF DI INDONESIA TENTANG PERKAWINAN USIA DINI SERTA DAMPAKNYA BAGI KELUARGA
Authors: Suhendra Darmiko
Published: August 2024

Man in the process of its development to continue its kind requires a spouse who can give offspring in accordance with what he wants. The establishment of a happy and lasting family must be based on religious and legal norms. Marriage for human beings is important, because with a marriage a person will get the balance of life both biologically, psychologically and socially.Marriage is commonly done by adults (baligh) regardless of profession, religion, ethnicity, poor or rich. Extremely overly wedded marriages result in divorce cases, due to a lack of awareness to be responsible in married life for husband and wife. Marriage is not as simple as imagined. Need maturity both in psychology and physical. Efforts to realize the family sakinah and happy, one of which is to prevent the occurrence of marriage a young age. And the minimum effort that is usually taken is the implementation of the maturation program of marriage age and the planning of family life is one of the requirements for the realization of sakinah, mawaddah and rahmah families.