bluuebunny/crossref_metadata_2025_split huggingface dataset:
Study of the permeability of fluorinated high-pressure polyethylene for temporary fuel storage
Authors: Рыбаков Юрий Николаевич , Дедов Александр Васильевич , Кюннап Роман Игоревич , Ларионов Сергей Владимирович 
Published: April 2021

Исследована проницаемость фторированного полиэтилена высокого давления (ПВД), предназначенного для изготовления ремонтных и технологических вкладышей резервуаров складов временного хранения топлива. Использование таких вкладышей позволяет снизить технологические потери углеводородов и увеличить надежность хранилищ из полимерных материалов. В качестве объекта исследования использовали пленки ПВД 10204-003 толщиной 100 мкм. Проницаемость пленок определяли при контакте с бензином марок Нормаль-80, Премиум-95, авиационным керосином ТС-1 и дизельным топливом. Рассмотрен механизм формирования структуры поверхностного фторированного слоя. Исследована кинетика изменения коэффициента проницаемости исходного и модифицированного полиэтилена в течение возможного срока хранения топлив. По результатам исследования установлено: 1) в полиэтилене перенос топлива протекает в две стадии, что определяется раздельной диффузией низкомолекулярных и высокомолекулярных фракций углеводородов; 2) фторирование полиэтилена приводит к уменьшению коэффициента проницаемости (что имеет практическое значение для сохранения качества топлива), но не влияет на перенос фракции углеводородов минимальной молекулярной массы.
The permeability of fluorinated high-pressure polyethylene (HDPE), intended for the manufacture of repair and technological liners of tanks for temporary fuel storage has been investigated. As the object of research, 10204-003 HDPE films with 100 μm thickness were used. The permeability of the films was determined by contact with gasoline of the Normal-80 and Premium-95 brands, aviation kerosene TS-1, and diesel fuel. The formation mechanism of the surface fluorinated layer structure was considered. The kinetics of changes in the permeability coefficient of the original and modified polyethylene during the possible fuel storage period has been studied. It has been established that the transfer of fuel in polyethylene proceeds in two stages, which is determined by the separate diffusion of low-molecular and high-molecular hydrocarbon fractions. Fluoridation of polyethylene decreases the permeability coefficient, but does not affect the transfer of hydrocarbon fraction with the minimum molecular weight.
KONSTITUSIONALITAS POLIgAMI DALAM PERSPEKTIF HERMENEUTIKA HUKUM ISLAM DI INDONESIA
Authors: Sihombing Eka N.A.M , Hadita Cynthia 
Published: April 2021

The polemic of polygamy that is still being contested in Indonesia needs to be studied from the perspective of hermeneutics of Islamic law, its constitutionality, such as how Pancasila guarantees the practice of polygamy, and also in laws and regulations whose substance also regulates polygamy. The research method used in this study is a normative juridical method with a doctrinal approach. The purpose of this study is to determine the constitutionality of polygamy when examined from the hermeneutic perspective of Islamic law in Indonesia. The results showed that the First Principle of Pancasila, Article 29 paragraph (1) of the 1945 Constitution of the Republic of Indonesia, the Marriage Law and its implementing regulations, as well as the various views of the schools allow the practice of polygamy in Indonesia.
Geochemistry of Dadeldhura granite and its mineral potential
Authors: Kaphle K. P. 
Published: April 2021

Dadeldhura granite is a cordierite bearing two mica granite. It is S-type, leucocratic and rich in silica, alumina and potash and slightly low in soda. In this granite a remarkable evolutionary trend is marked by the general increase in SiO2, Al2O3 , K2O , Na2O , P2O5, Rb, Nb and depletion of CaO, MgO, Fe2O3, TiO2, Ba, Sr, Zr, Zn and V etc. towards later phase. Mineral chemistry of biotite and feldspar and plot of chemical data on variation diagrams and triangular diagrams show a moderate to fairly strong differentiation trend from (i) granite gneiss (GGN), (ii) biotite granite (BGR) to (iii) muscovite granite (MGR) and (iv) aplitic tourmaline granite (TGR). Many physical, mineralogical and chemical characteristics of Dadeldhura granite resemble with world's average tin granite.
Penggunaan Model UTAUT2 Untuk Memahami Persepsi Pengguna Aplikasi G-Meet
Authors: Juningsih Eka Herdit , Aziz Faruq , Ismunandar Dinar , Sarasati Fajar , Irmawati Irmawati , Yanto Yanto 
Published: April 2021

Abstrak: Di era pandemi saat ini proses belajar mengajar dilakukan secara online dengan memanfaatkan aplikasi virtual, salah satunya yaitu G-Meet. Untuk memahami presepsi pengguna aplikasi G-Meet dalam penelitian ini menggunakan model UTAUT2. UTAUT2 merupakan pengembangan dari model UTAUT yang dilakukan oleh Venkates. Variabel yang ada pada UTAUT2 ini ialah ekspektasi kinerja, ekspektasi usaha, pengaruh sosial, kondisi fasilitas, motivasi hedonis, nilai harga, dan kebiasaan. Dari data yang dihasilkan terdapat 125 responden yang telah mengisi kuesioner dengan pertanyaan yang diajukan sebanyak 27 pertanyaan. Populasi dari penelitian ini adalah mahasiswa STIMIK Nusa Mandiri Jakarta. Dan untuk sampel yang ditentukan yaitu sebanyak 125 responden dari jumlah responden yang telah mengisi kuesioner. Dalam mengolah data penelitian pada penelitian ini menggunakan smartPLS 3, untuk mengetahui tingkat kevalidan dan kereabilitasan akan suatu data yang diperoleh. Hasil dari penelitian ini menujukkan bahwa dari delapan hipotesis yang diusulkan tiga hipotesis dinyatakan tidak signifikan karena pada nilai t-statistic kurang dari 1,96 dan untuk lima hipotesis lain dapat diterima. Kata kunci: UTAUT2, G-Meet, Pembelajaran Daring Abstract: In the current pandemic era, the teaching and learning process is carried out online by utilizing virtual applications, one of which is G-Meet. To understand the perceptions of users of the G-Meet application in this study using the UTAUT2 model. UTAUT2 is a development of the UTAUT model carried out by Venkates. The variables in UTAUT2 are performance expectations, business expectations, social influences, facility conditions, hedonic motivation, price values, and habits. From the resulting data, there are 125 respondents who have filled out a questionnaire with 27 questions. The population of this study were students of STIMIK Nusa Mandiri Jakarta. And for the specified sample, as many as 125 respondents from the number of respondents who have filled out the questionnaire. In processing research data in this study using SmartPLS 3, to determine the level of validity and reliability of the data obtained. The results of this study indicate that of the eight proposed hypotheses, three hypotheses are declared insignificant because the t-statistic value is less than 1.96 and the other five hypotheses can be accepted. Keywords: UTAUT2, G-Meet, Online Learning
Penerapan Metode Machine Learning Dalam Memprediksi Keberhasilan Panggilan Telemarketing Menjual Produk Bank
Authors: Fauzi Ahmad , Wati Fanny Fatma , Sulistyowati Indah , Akbar Muhammad Faittullah , Rahmawati Eka , Sari Ratna Kurnia 
Published: April 2021

Abstract: Competition between banks can be seen from the various attempts by banks to find customers through various marketing activities in order to get as many customers as possible. In the past, business actors offered goods or services to consumers in a face-to-face manner, now by utilizing existing and sophisticated technology, they can use long-distance communication tools such as telephone and fax, as well as other electronic media. To make it easier to manage customer data, a data calcification is needed. Machine Learning Algorithms can be used to predict or classify data. One of the algorithms in Machine Learning is the Naive Bayes method. Naive Bayes is a simple probabilistic classification that calculates a set of probabilities by summing the frequency and value combinations from a given dataset. This research will predict a successful Telemarketing call in selling Bank products to customers. The Naive Bayes algorithm and the Backward Elimination feature selection can increase the accuracy value in predicting the success of telemarketing in selling bank products well, as evidenced by the accuracy value generated by Naive Bayes of 83.04%, then after being applied with the selection of the backward elimination feature it increases by 6.41. % to 89.45%. Keywords: Telemarketing, Machine Learning, Naive Bayes Abstrak: Persaingan antar bank dapat dilihat dari berbagai upaya bank dalam mencari nasabah dengan berbagai kegiatan pemasaran agar mendapat nasabah sebanyak-banyaknya. Dahulu para pelaku usaha menawarkan barang atau jasa kepada konsumen dengan cara bertatap muka langsung, sekarang dengan memanfaatkan teknologi yang ada dan canggih bisa menggunakan alat komunikasi jarak jauh seperti telepon dan fax, serta media elektronik lainnya. Untuk mempermudah mengelola data nasabah maka dibutuhkan sebuah pengkalsifikasian data. Algoritma Machine Learning dapat digunakan dalam memprediksi atau mengklasifikasikan sebuah data. Salah satu algoritma dalam Machine Learning adalah metode Naive Bayes. Naive Bayes merupakan sebuah pengklasifikasian probabilistik sederhana yang menghitung sekumpulan probabilitas dengan menjumlahkan frekuensi dan kombinasi nilai dari dataset yang diberikan. Pada penelitian ini akan memprediksi sebuah keberhasilan panggilan Telemarketing dalam menjula produk Bank kepada para nasabah. Algoritma Naive Bayes dan seleksi fitur Backward Elimination mampu meningkatkan nilai akurasi dalam memprediksi keberhasilan telemarketing dalam menjual produk bank dengan baik, dibuktikan dengan nilai akurasi yang dihasilkan naive bayes sebesar 83,04 %, kemudian setelah diterapkan dengan seleksi fitur backward elimination meningkat sebesa 6,41% menjadi 89,45%. Kata kunci: Telemarketing, Machine Learning, Naive Bayes
ADSORPTION PURIFICATION OF LIQUID WASTE FROM PHOSPHATES AND RESINOUS SUBSTANCES USING NATURAL ADSORBENT BASED ON SUNFLOWER BEADS
Authors: Ivanchenko A. , Savenkov A. , Yelatontsev D. , Maksymchuk Y. 
Published: April 2021

Among the physicochemical methods of deep extraction of pollutants from wastewater, adsorption is of great interest. Prospects for the use of sorbents from natural raw materials in wastewater treatment technologies based on a critical analysis of the technical literature are shown, the choice of research direction is substantiated. The use of natural adsorbent based on sunflower husk in the technology of wastewater treatment from phosphates and resinous substances at high content to minimize their anthropogenic impact on the environment is scientifically substantiated. The kinetics of adsorption of phosphates and resinous substances has been studied, the optimal parameters of adsorption purification have been established, and adsorption isotherms have been obtained. The theory of monomolecular adsorption (Langmuir and Freundlich equations) was used to characterize the sorbent based on sunflower husk and calculate the adsorption parameters. Experimental data on the degree of extraction of phosphates and resinous substances from wastewater using a natural adsorbent based on sunflower husk were obtained, and its specific surface area (200.06 m2/g) was experimentally determined. It was found that the highest efficiency of phosphate removal at the initial content of 21.25 mg/dm3 to 8.75 mg/dm3 from municipal liquid waste is achieved by adding an adsorbent in the amount of 10 g/dm3. With such technological parameters, the degree of waste treatment reaches 59.3%. At the increased concentration of resinous substances of 775 mg/dm3 at a dose of adsorbent of 1.5 g/dm3 duration of adsorption of 40 minutes their maintenance decreased to an extremely safe indicator (less than 25 mg/dm3). and implement them in urban and industrial treatment plants.
The influence of means of physical education on the formation of moral and voluntary qualities of students of higher education institutions
Authors: Soga S. , Mikhailenko V. , Dobrovolsky V. 
Published: April 2021

The article reveals the peculiarities of the influence of physical education on the formation of moral and strong-willed students of higher education institutions. The significance and efficiency of sports and mass work on physical development, education of moral and volitional qualities of student youth are revealed. The article shows that the correct application of the content, forms and methods of the presented research has a positive effect on the education of moral and volitional qualities of students. It has been established that during physical education classes students have a conscious attitude to their own health and the health of others; overcome difficulties and do not stop there; show friendliness, perseverance, determination and other qualities.
The reforms carried out in our country have also affected the system of training specialists for various spheres of modern society. Thus, changes in socio-economic conditions cause most people to fear the future, create negative mental states and reduce a person's adaptive capacity. According to scientists, modern man increasingly has to live at the limit of their capabilities, in rapidly changing conditions, in conditions of changing life stereotypes, information boom.
The development of new economic mechanisms imposes stricter requirements on each person both in terms of education and in terms of the ability to "fit in" with the environment, the ability to communicate with others, the ability to interact with them, that is, what we call socialization. All this affects the level of development of the moral and volitional sphere of the younger generation, leads to a change in their value orientations.
The influence of health-improving fitness exercises on the women’s physical activity
Authors: Stepanyuk S.I. , Koval V.Yu. , Tkachuk V.P. , Lomaka Z.М. , Grabovskiy Yu.А. , Kharchenko-Baranetska L. L. 
Published: April 2021

The level of person’s physical activity belongs to the main criteria of one’s status. A high work ability level proves one’s strong health status, as well as low level of work ability is believed to be a health risk factor. Health preservation and restoration by means of health-improving fitness exercises becomes one of the most up to date problems. Nowadays, there is no hesitation considering positive influence of physical exercises on one’s physical and psychological health, improvement of one’s cardiovascular, respiratory and hormonal systems, as well as one’s physical qualities development. Health-improving fitness exercises are very popular among women (tae-bo, kibo, pump, terra- aerobics, slide, pilates). Such types of exercises enable to extend the influence of physical activity on one’s organism.
The purpose of the research is to reveal the influence of different types of health-improving exercises on women’s physical and working ability.
Methods of the analysis: the analysis of scientific and scientific methodological resources, pedagogical observation, medical-biological methods, methods of mathematical statistics.
Results of the research have proved that Tabata is the most effective kind of health-improving fitness exercises, which increases working ability for 16 %. Zumba is less efficient – 14%. Body Pump exercises demonstrate the lowest level of productivity – 9%. We assume that such quantitative difference is determined by different health directivity and content of the exercises. High efficiency level of those who practice Tabata and Zumba is inherent in the aerobic nature of the exercises. Body Pump exercises are mainly focused on improving body shape, which makes them less effective.
In conclusion we may claim that Body Pump, Tabata and Zumba health-improving exercises have a positive influence on women’s physical and working ability.
FUKAHÂ-Yİ SEB’A VE HADİS İLMİNDEKİ YERİ
Authors: ADIGÜZEL Abdulalim 
Published: April 2021

Hz. Peygamber sonrası ilk dönem, İslâm’ın hızla yayılmasının yanı sıra siyâsî ve fikrî karışıklıkların görüldüğü bir dönemdir. Hal böyle olunca, dinî ve ilmî konularda birçok meseleye çözüm aranmaya başlanmış, bu konuda ehil olan kişilere ciddi anlamda ihtiyaç duyulmuştur. Bundan dolayıdır ki İslâm dünyasında, Hz. Peygamber (s.a.s.) ve sahâbenin önde gelenlerinin bu dünyadan ayrılmasından sonra ortaya çıkan meselelere karşı, onlardan sonra yaşayan ilim ehlinin geliştirdiği çareleri görmek, İslâm düşüncesinin teşekkül sürecinde ve günümüzde yüz yüze gelinen sorunlara çözüm aramak açısından son derece önemlidir.
Çalışmamızda hayatları ve hadis ilmindeki yerleri tespit edilmeye çalışılan Medine’li meşhur yedi tâbiûn fakih, döneminin önde gelen âlimleridirler. Fukahâ-yi Seb’a’nın hayatları ve Kütüb-i Sitte çerçevesinde aktarılan rivayetlerinin özellikle fıkhi meselelere dair rivayetlerinin önemini ortaya koymaktadır. Yine bu çalışmada bu şahsiyetler ile alakalı ulemanın görüşlerinin yanında rivayetlerinin Kütüb-i Sitte kapsamında sayı ve dağılımları da müşahade edilecektir.
Determinación de variables predictivas de deserción inicial para generar un sistema de alerta temprana. Análisis sobre una muestra de estudiantes beneficiarios de la beca de nivelación académica en una universidad pública en Chile
Authors: Contreras Cristian 
Published: April 2021

The quantitative results of the program "Academic Leveling Scholarshipâ€ from year 2016 were analyzed, from a sample of 250 beneficiaries. Statistic datasets were checked using Decision Tree and Clustering techniques in the search of information in institutional data bases that will be relevant to develop an Early Dropout Prediction Model. This model will Â allow for selecting students with a higher risk of dropping out to receive a timely focused accompaniment. It concluded that there exists, at least, one characterization variable upon the first-year students that allows for identifying the dropout risk in the selected sample regarding the score obtained in the Â specific math test of the university selection process.The relevance of this research is its contribution to predictive evidence to align efforts that different universities are making to improve their permanence indexes, especially regarding the recent diversification of the population that has been admitted to higher education due to universal access policy, free education, equity and inclusion.
PENGARUH KOMPETENSI APARATUR DESA DAN PEMAHAMAN AKUNTANSI DESA SEBONG LAGOI KECAMATAN TELUK SEBONG BINTAN
Authors: Nurhasanah  , Asri Eka Ratih  
Published: April 2021

Pengabdian ini bertujuan untuk mengetahui dan mengukur tingkat kompetensi aparatur dan pemahaman desa sebagai laporan keuangan desa dalam pengelolaan dana desa agar lebih berkualitas dan sesuai dengan standar. Hasil dari pengabdian ini diharapkan nantinya dapat dijadikan salah satu tolak ukur keberhasilan serta mempertanggung jawabkannya dengan kompetensi yang dimiliki aparatur desa serta pemahaman akuntansi desa. Pengabdian ini dilakukan di desa Teluk Sebong Bintan, Hasil dari pengabdian ini menjelaskan bahwa semakin tinggi kompetensi yang dimiliki oleh aparatur desa, maka akan semakin baik kualitas laporan keuangan yang disajikan
Permainan Tradisional Sebagai Sarana Mengembangkan Kemampuan Fisik Motorik Anak Usia Dini
Authors: Nurwahidah  , Maryati Sri , Nurlaela Wulan , Cahyana  
Published: April 2021

Abstrak
Penelitian ini dilatarbelakangi oleh kepunahan permainan tradisional yang mulai tergantikan dengan adanya beragam permainan game di dalam gadget Khususnya di Kota Tasikmalaya. Penelitian ini bertujuan untuk menumbuhkan kesadaran masyarakat khususnya orang tua untuk senantiasa melestarikan permainan tradisional sebagai warisan budaya sekaligus media bermain untuk perkembangan khususnya fisik motorik pada anak usia dini. Tujuan dari penelitian ini adalah peneliti ingin menumbuhkan dan melestarikan kembali permainan tradisional yang hampir/sudah punah dengan memperkenalkan pada anak usia dini sebagai generasi penerus bangsa. Penelitian ini menggunakan pendekatan kualitatif dengan melibatkan partisipan dari semua kalangan usia dari <20 tahun sampai usia >80 dan 2 orang dari unsur pemerintah yang menangani kebudayaan dan olahraga. Instrumen yang dipergunakan peneliti adalah dengan menggunakan pedoman wawancara, observasi dan studi dokumentasi. Hasil yang didapatkan dari penelitian ini yaitu berupa data yang menyatakan bahwa ada 33 jenis permainan tradisional yang masih dimainkan di Kota Tasikmalaya. Dan ada beberapa rekomendasi permainan tradisional yang dapat diterapkan dalam pembelajaran di PAUD yang dapat menstimulus perkembangan fisik motorik anak usia dini yaitu permainan pecle, lompat tinggi, sapintrong dan main bola.
Kata Kunci: Bermain; Kemampuan Fisik Motorik; Permainan Tradisional
Modeling of information interconnection in a computer control system of moving objects
Authors: Kuchuk Nina , Merlak Viktoriia 
Published: April 2021

The subject of research is a pool of widgets, which provides a user interface in a computer control system for moving objects. The object of research is the process of information exchange between the components of a computer system, which are directly involved in the control of moving objects. The task of allocating resources for a pool of widgets that provide operational control of moving objects is critical. As the number of elements increases in the pool of widgets, the competition for the resources of the computer system increases significantly, respectively, the queues for the most demanded resources grow. Therefore, it is necessary to reallocate resources between requests in such a way that the priorities of requests are taken into account, and the response time of operational requests does not exceed the standard time. Such distribution cannot be realized without a model that would show the parameters of all information flows between the components, which is the purpose of this article. In doing so, the model must consider the characteristics of the pool of widgets that support the user interface. Research results. To achieve this goal, several particular tasks were solved. First, the main sets were identified that will be involved in modeling information interconnections between software components that service requests for user interface widgets in a computer system environment. Then, a diagram of informational interconnections between these sets was developed. Further, the parameters of the requests, which were initiated by the widgets, of the applications, and the fragments of the widget query service database were determined and formalized. All this made it possible to form a model of information interconnections using a tuple of obtained vectors, sets, and Boolean matrices. In the proposed mathematical model, many limitations are imposed on the elements of this tuple, associated with the characteristic features of the control module for the user interface of the computer system. Besides, the limitations associated with the functioning of the basic network of the computer system are taken into account. In the final model, Boolean matrices affecting resource allocation defined as model variables. A fast algorithm for determining the space of admissible distributions is proposed. Conclusions. The developed mathematical model determines the parameters of information flows between the components of the computer system, which are involved in the control of moving objects. This model will allow for the operational reallocation of resources between requests using the proposed fast algorithm.