bluuebunny/crossref_metadata_2025 huggingface dataset:
Produção de leite em sistema silvipastoril: Revisão
Authors: Reis Larissa de Souza , Marques Letícia Ribeiro , Santos Sthéfany Noronha dos , Paim Tiago do Prado , Guimarães Tiago Pereira , Marques Thaisa Campos , Leão Karen Martins
Published: April 2021

A produção de leite no mundo é crescente, pois representa parte da economia mundial. Diante deste cenário, a preocupação com a quantidade e qualidade do leite e do rebanho tem sido relevante. O estresse por calor é a consequência da ausência de sombra nas propriedades rurais, prejudicando a produção e reprodução dos animais. Neste intuito, os sistemas silvipastoris têm sido favoráveis para o desempenho de vacas leiteiras, uma vez que o sombreamento promove efeitos positivos na produção de leite, bem estar, conforto e fertilidade, além disso, aumentam a disponibilidade de nutrientes no solo, melhorando as pastagens. Portanto, objetivou-se com esta revisão apresentar os benefícios do sombreamento proporcionado pelos sistemas silvipastoris na produção de leite e conforto térmico dos animais.
Utilização da infiltração virtual nas operações policiais para o combate ao crimes sexuais contra crianças e adolescentes
Authors: Rodrigues Felipe José Sousa , Cardoso Sarah de Araújo Mendes , Marwell Tatiana Eulálio Dantas Guedes
Published: April 2021

A crescente ascensão das mídias sociais virtuais possibilitou a extensão dos crimes sexuais contra crianças e adolescentes, o que viabilizou a atuação do agente de polícia infiltrado nesse âmbito.  O presente artigo científico proporciona o estudo de operações policiais que utilizaram a infiltração virtual no combate aos crimes sexuais contra crianças e adolescentes cometidos no âmbito da internet. O objetivo principal dessa pesquisa consiste em constatar a eficiência do agente infiltrado digital na repressão desses delitos. Com o intuito de alcançar essa meta, são estudadas quatro operações da polícia federal a partir da perspectiva técnica de dois policiais e da percepção jurídica obtida de dois acórdãos. As visões dos dois agentes, que possuem o conhecimento empírico de terem atuado nas investigações relatadas, permitem uma compreensão do modus operandi da infiltração virtual; e a análise dos provimentos jurisdicionais demonstra a forma como foram condenados os investigados das operações pesquisadas. O artigo alcançou o seu propósito ao demonstrar a eficiência das quatro empreitadas da polícia, já que elas conseguiram inúmeras condenações e vários resgates de menores em situações de vulnerabilidade.
Pengaruh Larutan Kombinasi Daun Mimba (Azadirachta indica) dengan Buah Cabai Rawit (Capsicum frutescens) terhadap Mortalitas Kutu Daun Hijau (Aphis gossypii) Secara In Vitro
Authors: Rajab Ahmad Mijwad , Hayati Ari , Zayadi Hasan
Published: April 2021

The results of the introduction show that the water fruit chili, having the effect on mortalitas pest aphids green (Aphis gossypii) in concentration 10 %, while in water extract leaves mimba having the effect on mortalitas pest aphids in concentration 20 %. Has done research aimed at know the influence of concentration combination leaves mimba (Azadirachta indica) with fruit chili (Capsicum frutescens) of mortalitas aphids green (Aphis gossypii) in plants chili and to see how the concentration of a solution combination leaves mimba and waste fruit chili most effective against mortalitas aphids green (Aphis gossypii) in plants chili. This research uses experimental methods and design used is a random complete ( RAL ) but the concentration of a solution 0 %, 5 %, 10 %, 15 % and 20 %. Every treatment using 4 remedial. Every remedial there are 10 tail nymph aphids and sprayed by three times for 24 hours. The analysis of data using anova in monitoring also show that f count the concentration ( 61,07 ) were greater than f table ( 0,000 ). Of the result it can be said that mortalitas aphids after he received solution concentration combination leaves mimba and waste fruit chili markedly dissimilar between treatment. Test results BNT on 5 % (P ≤ 0,05) obtained concentration 15 % which are effective for control pests aphids green (Aphis gossypii) in plants chili . ABSTRAKHasil uji pendahuluan menunjukkan bahwa air buah cabai, memiliki pengaruh terhadap mortalitas hama kutu daun hijau (Aphis gossypii) pada konsentrasi 10 %, Sedangkan pada air ekstrak daun mimba memiliki pengaruh terhadap mortalitas hama kutu daun pada konsentrasi 20 %. Telah dilakukan penelitian yang bertujuan untuk mengetahui pengaruh konsentrasi kombinasi daun mimba (Azadirachta indica) dengan buah cabai rawit (Capsicum  frutescens) terhadap mortalitas kutu daun hijau (Aphis gossypii) pada tanaman cabai dan untuk mengetahui berapa konsentrasi larutan kombinasi daun mimba dan limbah buah cabai rawit yang paling efektif terhadap mortalitas kutu daun hijau (Aphis gossypii) pada tanaman cabai. Penelitian ini menggunakan metode eksperimental dan rancangan yang digunakan adalah Rancangan Acak Lengkap (RAL) dengan perlakuan konsentrasi larutan 0%, 5%, 10%, 15% dan 20%. Setiap perlakuan menggunakan 4 ulangan. Setiap ulangan terdapat 10 ekor nimfa kutu daun dan disemprot 3x selama 24 jam. Analisis data menggunakan ANOVA. Hasil yang didapat menunjukkan F hitung  (61,07) lebih besar dari F tabel (0,000). Dari hasil tersebut dapat dikatakan bahwa mortalitas kutu daun setelah diberi larutan konsentrasi kombinasi daun mimba dan limbah buah cabai rawit berbeda nyata antar perlakuan. Hasil uji BNT pada (P ≤ 0,05 ) didapatkan konsentrasi 15 % yang efektif untuk mengendalikan hama kutu daun hijau (Aphis gossypii) pada tanaman cabai.
Pengaruh Pemberian Hasil Samping Pembuatan Biogas sebagai Pupuk Organik Cair terhadap Pertumbuhan Bawang Merah (Allium cepa L.)
Authors: Mufairoh Lailatul , Laili Saimul , Rahayu Tintrim
Published: April 2021

The shallots production enhancements, an improvement in cultivation techniques and organic fertilizer is needed. Biogas liquid waste is one of the organic fertilizers that can be used in plants. The benefit of biogas liquid waste is that it can improve soil properties and produce agricultural products that are safe for health. The purpose of this study was to determine the effect of dose and time of bio-slurry fertilizer on the growth of red onion (Allium cepa L.). Research used a randomized block design consisting of two factors. The first factor is the time of fertilizer application which consists of four levels, namely: control, W1, W2 and W3. The second factor is the administration of bio-slurry fertilizer dose of 25 ml, 50 ml, 75 ml and 100 ml. The results showed that the application of bio-slurry fertilizer affected the growth of shallots. The treatment of D4W1 (fertilizer every week with a dose of 100 ml) showed the best results in each parameter, namely plant height, leaf number, leaf area, root length, wet weight and dry weightABSTRAKPeningkatan produksi bawang merah diperlukan adanya perbaikan teknik budidaya  dan pemberian pupuk organik. Limbah cair biogas adalah salah satu pupuk organik yang dapat digunakan pada tanaman. Manfaat limbah cair biogas adalah  dapat memperbaiki sifat-sifat tanah dan menghasilkan produk pertanian yang aman bagi kesehatan. Tujuan dari penelitian ini yaitu untuk mengetahui pengaruh dosis dan waktu pemberian pupuk bio-slurry terhadap pertumbuhan bawang merah (Allium cepa L.) Penelitian menggunakan Rancangan Acak Kelompok yang terdiri dari dua faktor. Faktor pertama yaitu waktu pemberian pupuk yang terdiri dari empat taraf yaitu: kontrol, W1, W2 dan W3. Faktor kedua adalah pemberian dosis pupuk bio-slurry yaitu 25 ml, 50ml, 75 ml dan 100 ml. Hasil penelitian menunjukkan bahwa pemberian pupuk bio-slurry berpengaruh terhadap pertumbuhan bawang merah. Perlakuan D4W1 (pemberian pupuk setiap minggu dengan dosis 100 ml).menunjukkan hasil yang terbaik pada setiap parameter yaitu tinggi tanaman, jumlah daun, luas daun, panjang akar, berat basah dan berat kering.Kata kunci: Pupuk Bio-Slurry, Bawang merah (Allium cepa L.), waktu pemberian pupuk
Pengaruh Biji Picung Muda (Pangium edule Reinw) sebagai Pengawet Ikan Nila Merah (Oreochromis niloticus)
Authors: Mariyana Mariyana , Santoso Hari , Zayadi Hasan
Published: April 2021

The most popular fish farmers in Indonesia are tilapia. A decreasing in physical quality of fish after approximately 2 hours of death. The fish can be guaranteed the quality of freshness with preservation. Some people still use preservation by cooling, drying, fumigating, salting and even the formalin substances. This research use natural preservation that use young seed of Picung (Pangium edule Reinw). The aim of research was to determine the effect of the covered pasta duration as a natural preservative against the ratio freshness of red tilapia (Oreochromis niloticus) meat in each treatment. This study used an experimental method consist four treatment; first, without covered pasta at 26 and 18 oC. The second,  the 3 mm of covered pasta of fish at 26 and 18 oC. The assessment of physical appearance performed by organoleptic scoring of fresh fish and Friedman test. The results of this study indicate that red tilapia which is covered with 3mm thickness of Picung young seeds with a refrigerator temperature of 18˚C has score value of the average; eye 6.93, gills 7.68, smell 7.77 and texture 8.5 with at long time fresh of 168 hours.Keywords: organoleptic, covered pasta, long time fresh ABSTRAKBudidaya ikan di Indonesia paling banyak diminati adalah ikan nila. Ikan mengalami penurunan kualitas secara fisik setelah kurang lebih 2 jam setelah kematiannya. Ikan dapat terjamin kualitas kesegarannya usaha yang dilakukan adalah pengawetan. Beberapa masyarakat masih menggunakan pengawetan dengan metode pendinginan, pengeringan, pengasapan, penggaraman dan bahkan formalin. Penelitian ini menggunakan pengawetan secara alami, yaitu pemberian lumuran pasta biji picung mudah (Pangium edule Reinw). Tujuan dari dari penelitian ini adalah untuk mengetahui pengaruh lama waktu pelumuran pasta sebagai pengawet alami terhadap rasio kesegaran daging ikan nila merah (Oreochromis niloticus) pada setiap perlakuan. Penelitian ini menggunakan metode eksperimental, ada empat perlakuan pertama yaitu ikan nila merah tanpa diberi pelumuran pada suhu 26˚C dan 18˚C. Kedua ikan nila merah dilumuri biji picung halus setebal 3 mm pada suhu 26˚C dan 18˚C. Penilaian kenampakan secara fisik dilakukan dengan scoring organoleptik ikan segar dan uji Friedman. Hasil dari penelitian ini menunjukan bahwa ikan nila merah yang dilumuri oleh biji picung muda ketebalan 3mm dengan suhu pendingin 18˚C memiliki skor nilai rata-rata mata 6,93, insang 7,68, bau 7,77 dan tekstur 8,5 dengan lama waktu simpan selama 168 jam.Kata kunci: organoleptik, lumuran pasta, lama waktu segar
Análise dos níveis de ansiedade, estresse e depressão em universitários da Universidade Federal de Viçosa (UFV)
Authors: Silva Josimáteus Geraldo Ataíde Rocha , Romarco Evanize Kelli Siviero
Published: April 2021

O Estresse, ansiedade e depressão são comorbidades comuns entre universitários. É fundamental que se mais conheça sobre o impacto dessas doenças para enfrentá-las. Participaram desse estudo 37 universitários. Essas comorbidades foram mensuradas através dos seguintes questionários: Inventário de Ansiedade de Beck, Escala de Estresse Percebido, e o Inventário de Depressão de Becker. Prevaleceram respectivamente o estresse, a depressão e a ansiedade. 35,14% dos entrevistados portavam as três comorbidades. Sugere-se o monitoramento periódico dos universitários, a implementação e a ampliação de novas estratégias de saúde.
Ortaokul Öğrencilerinin Yaşadıkları Yakın Çevreye Yönelik Farkındalıklarının Bölgesel Farklılıklara Göre Karşılaştırılması
Authors: HÜSEYİNBAŞ Özgür , ÜNAL Ahmet , YERLİKAYA Zekeriya
Published: April 2021

Bu araştırmanın amacı Kastamonu ili genelinde öğrenim görmekte olan ortaokul öğrencilerinin köy, ilçe veya il merkezi gibi farklı bölgelere göre, yakın çevrelerinde bulunan yaşam alanlarına ve canlılara yönelik farkındalıklarını ortaya koymaktır. Araştırmanın çalışma grubunu, 2017-2018 eğitim öğretim yılında Kastamonu ilinde öğrenim görmekte olan toplam 720 ortaokul öğrencisi oluşturmaktadır. Veri toplama aracı olarak araştırmacılar tarafından geliştirilen, “Yakın Çevre Farkındalık Testi” kullanılmıştır. Elde edilen veriler analiz edildiğinde öğrencilerin belirlenen yaşam alanları ile ilgili farkındalık düzeylerinin düşük olduğu, bununla beraber yakın çevrelerinde bulunan çeşitli bitki, hayvan ve mantarlar ile ilgili farkındalıklarının ise orta düzeyde olduğu tespit edilmiştir. Yapılan analizler il merkezindeki öğrencilerin yaşam alanlarına ilişkin farkındalık düzeylerinin ilçedeki öğrencilere göre istatistiksel olarak daha yüksek olduğunu, benzer şekilde ilçedeki öğrencilerin yaşam alanlarına ilişkin farkındalık düzeylerinin de köyde bulunan öğrencilerden anlamlı şekilde yüksek olduğunu ortaya koymuştur. Öğrencilerin bölgede yaşamını sürdüren canlılar hakkında farkındalık düzeyleri incelendiğinde köyde yaşayan öğrencilerin hem il merkezinde hem de ilçe merkezinde yaşayan öğrencilere göre farkındalık düzeylerinin anlamlı şekilde yüksek olduğu görülmüştür. İl ve ilçe merkezlerinde yaşayan öğrenciler arasında bölgede yaşamını sürdüren canlılar hakkında farkındalık düzeyleri açısından anlamlı bir farklılık bulunmamıştır.
ДОСЛІДЖЕННЯ БАГАТОКАНЛЬНИХ СИСТЕМ ПОЧЕРГОВОГО КЕРУВАННЯ
Authors: Станчиц Георгій , Станчиц Антон , Румянцев Олексій
Published: April 2021

Розглядаються багатоканальні системи керування, в яких керуючий вплив, прикладається в одному з каналів, відповідно до деякого закону перемикання. Приведе-на класифікація багатоканальних систем почергового керування (БСПК). Приведені різні типові схеми БСПК і приведений їх порівняльний аналіз. Розглядаються різні умо-ви перемикання керуючого впливу. Приведена цифрова імітаційна модель БСПК і ре-зультати її досліджень.
РОЗРОБКА АЛГОРИТМУ ДЛЯ ПОБУДОВИ ПРОТОТИПУ ЕКСПЕРТНОЇ СИСТЕМИ ДІАГНОСТИКИ АВАРІЙНИХ СИТУАЦІЙ МЕРЕЖІ
Authors: Глоба Назар , Дмитрієва Ірина
Published: April 2021

Сучасні електроенергетичні системи відносяться до класу великих людино-машинних систем кібернетичного типу, тому розробка експертної системи діагностики аварійних ситуацій є актуальною. В роботі було розроблено модифікований алгоритм Дейкстри. Мета модифікації поля-гає в підвищенні ефективності запропонованого рішення, можливість роботи в зва-женому графі і виключення помилок під час пошуку альтернативного шляху.
RESEARCH OF THE INFLUENCE OF A NETWORK INTERFACE ON THE EFFICIENCY OF MODULAR MULTIPROCESSOR SYSTEMS
Authors: Moroz Dmytro
Published: April 2021

The paper is devoted to the approach development related to methodology definition for evaluation of the modular multiprocessor computing systems efficiency. At the same time, the main attention is focused on the impact peculiarities on this network interface value. The formation analysis of the multiprocessor system network interface architecture and the basic modes of its operation have been analyzed. To evaluate the processes occurring in the system during the information flows transmission, the network system bandwidth and the switch throughput were compared; which allowed determining the preconditions for optimal components selection of the multiprocessor computing system network interface. The performed researches also allowed deducing analytical relations for determining the optimal number of system nodes with different functioning modes. The selected processors coherency coefficient, network interface and value of the computing area are deduced. The derived analytical relationships also showed that the optimal number of blades in a multiprocessor computing system, that provide its highest speed, decreases with increasing computing power of the processors included. It is shown that the network data interchange among the multiprocessor computing system nodes the more likely to impede the overall computation process; the less time will be spent directly on solving a specific problem.
Investigation of plastic properties of AISI 316l steel by method of registration of macrolocalization fields
Authors: Adjamskiy Sergey , Podolskyi Rostislav , Kononenko Ganna
Published: April 2021

Selective laser melting is one of the modern methods of manufacturing parts in the production of machine-building equipment, a special place is occupied by complex technological processes used in the manufacture of high-load units of pneumatic-hydraulic system from heat-resistant alloys. The research was carried out on samples made of powder material - stainless steel AISI 316L martensite class. Metallographic studies showed that the density of the sample is 99.83%, the structure of the samples is a martensitic structure of equilibrium constructed tracks. Tests to determine the mechanical properties were performed in accordance with ISO 6892 on an INSTRON test machine. From the tensile diagram it was found that the yield strength was 376.56 MPa, the maximum point of temporary resistance of the sample - 615, 40 MPa 319 seconds after the start of the test. The control of the surface roughness was performed using a BioBase device. The working area of the tensile sample consisted of two areas: a roughness area of 5 μm, which accounted for 80% of the working part of the sample (zones A and Б) and 20% of the working part of the sample (zone Б), the roughness was 17 μm. According to the results of microstructure studies and studies by the method of registration of macrolocalization fields of the working zone of the samples, it was found that the destruction began from the surface of the samples from microconcentrators due to different roughness. It is established that the surface and subsurface layer with increased roughness in comparison with the main body has a smaller elongation by 10.84%. From microstructural studies of the working zone in the area of the gap, it was found that the destruction began from the surface of the samples between zones A and Б. During the research in zone A and Б, one of the concentrators of the gap was detected. As a result of the study, it was found that the destruction began with the surface of the samples and the place of change of its roughness. The mechanism of deformation of the sample from AISI 316L steel is shown, the scheme of extraction of tail sections of tracks and crack propagation in the conditions of tensile testing of the sample is constructed.
Experimental research of a re-equipment wheeled vehicle category M1 into electromobile
Authors: Hladchenko Volodimir
Published: April 2021

Today, there are more than 1 billion ICE equipped vehicles worldwide. Some of them are electric vehicles, hybrid vehicles of various types, hydrogen and gas power plants. The part of environmentally friendly wheeled vehicles is very small. With an increase in the price of oil products in the foreseeable future, all these cars with ICE will have to be either disposed of or refurbished. Moreover, mainly for other types of energy, more environmentally friendly, with the aim of further using the resource of the body and transmission, in order to provide them with the opportunity to develop their resource. One of the promising areas is the re-equipment of the power plant to an electric or hybrid one.Ensuring the required indicators of traction and speed properties of electric vehicles is a difficult task and requires a more detailed assessment due to the great difficulties in finding the initial data and internal parameters of the system. The presented article considers the vehicle ZAZ 965 "Zaporozhets" of category M1, which was re-equipment into a battery electromobile. The vehicle is equipped with a traction electric motor Balkankar DS 3.6/7.5/14, a power storage battery with lithium cells, a maximum voltage of 100.8 V and a capacity of 6.45 kW∙h. The traction motor control system is impulse with electronic power switches. Traction motor power is controlled by a controller that changes the pulse-width modulation (PWM) depending on the control signal from the control unit and the logic of the system. The change in PWM signal also occurs when the thermal protection is triggered, and in the event of a voltage drop on the power storage battery.Experimental road studies have been carried out, electricity consumption by a vehicle at various speeds has been determined, a coefficient has been determined that characterizes the ratio of consumed electrical energy to the kinetic energy of a vehicle. Comparison of the results of theoretical and experimental studies testifies to the adequacy of the developed mathematical model and the initial provisions underlying the calculation of the indicators of the efficiency of the use of electric energy by electromobile re-equipment from common vehi-cle with ICE.
Analysis of modern software solutions for creating problem-oriented programming languages
Authors: Baklan Ihor , Ocheretianyi Oleksandr
Published: April 2021

Recent research and publications.Support systems for designing programming languages (SPPMP) as a means to create problem-oriented languages were popularized by Martin Fowler in 2010. Such tools provide efficient design, reuse, and support for languages and their integrated development tools. SPPMPs enable a wide range of engineers to develop new languages and, as a result, create a new level of language engineering where sets of syntactically and semantically integrated languages can be developed with relatively little effort. This can lead to the emergence of programming environments with many paradigms and metalanguages focused on creating a language [2, 3], which can solve important problems of software engineering.The aim of the study. Thus, there is a need to study the effectiveness of existing systems to support the design of programming languages to obtain quality criteria for the design process of problem-oriented programming languages. You also need to find out which design support systems best support the effective development of problem-oriented languages.Main material of the study.To make a qualitative comparison of existing systems for supporting the design of programming languages, it is necessary to define criteria for comparison. We propose to compare these tools according to the requirements that classify the product as modern software. Our main parameters are: the ability to create problem-oriented languages, support for integrated development tools, support for language combination, support for making changes to the created language, providing basic language testing capabilities, integration with other software engineering tools. A separate point that is an indicator of the high level of development of design support systems is the availability of metrics for evaluating the initial result. This feature is absent for classical integrated development tools as their main focus is on software development without domain domain specification. This situation makes any comparison of the resulting products impossible because for a web application the server response in 3 seconds may be too high and for a web platform for processing large data it is the shortest server response time. The criteria described above will be used to evaluate the following SPPMP: tef tcs and emf.Conclusions. The study compares the support systems for designing programming languages that are focused on working with problem-oriented languages. The advantages of these systems are the focus on working with specific areas to describe the notations of programming languages. The systems allow you to create the necessary tools to work with the designed programming languages and provide basic improvements in the design process. The disadvantages of these systems are the lack of similarity in the operation of systems and products that the developer receives at the exit. Another important drawback is the lack of any metrics for assessing the quality of created languages.
МОДЕЛИРОВАНИЕ МНОГОСЛОЙНОГО КОМПОЗИЦИОННОГО МАТЕРИАЛА ФЛАНЦА ТОПЛИВНОГО БАКА ИЗ УГЛЕПЛАСТИКА
Authors: Литот Александр , Манько Тамара
Published: April 2021

Статья посвящена сравнительной оценке компьютерного моделирования про-цесса укладки многослойного композиционного материала сложной формы и его практиче-ского исполнения на примере фланца топливного бака из углепластика. Проведен микро-структурный анализ материала фланца топливного бака и формирования многослойнойконструкции. Оценен уровень и размеры укладки наполнителя при сохранении плоскостно-сти и взаимного положения отдельных слоев композиционного материала большой толщи-ны. Представлены оценка полученных результатов и сформулированы выводы по работе.
Системний аналіз факторів, що визначають стійкість футеровки конвертера та побудова прогнозуючої моделі
Authors: Желдак Тімур , Антоненко Нікіта
Published: April 2021

В ході виконання даної роботи було розглянуто процес зношування футеровки конвертера. Остання може витримувати тисячі плавок, кожна з яких тим чи іншим чином впливає на термін служби футеровки. Було вивчено досвід 91 сесії роботи футеровок за сім років (загалом – більше 145 тисяч плавок). Метою дослідження є розробка сімейства моделей залежностей стійкості футеровки конвертера від відомих технічних та технологічних чинників, задля подальшого надання рекомендацій щодо ведення виробничого процесу.Пропонується використання отриманих моделей в складі інтегрованої системи керу-вання металургійним підприємством, а саме в підсистемі підтримки прийняття рі-шень оператором конвертера для формування порад щодо збільшення тривалості ро-боти поточної футеровки.
ABOUT THE EXPEDIENCY OF USING ELECTROCHEMICAL STORAGES IN POWER SUPPLY SYSTEMS FOR NON-TRACTION CONSUMERS OF RAILWAYS FROM RENEWABLE ENERGY SOURCES
Authors: Kuznetsov Vitaliy , Kachan Yuriy
Published: April 2021

This paper focuses on the problem of analyzing expediency of using electrochemical storages in power supply systems for non-traction consumers of railways from renewable energy sources (RES). It is quite obvious that RES implementation in any national industry as a proper distributed energy source is too problematic if there is no possibility to accumulate it in good supply. The aim of this paper is to select the most appropriate electrochemical storage device for power systems for non-traction consumers of railways from RES. The methodology of research is based on modern methods of computational mathematics, statistics and information analysis using modern computer technology. Consequently, the analysis helps conclude that batteries are the most preferable for power lines. That especially concerns railway mains with RES use since the batteries have the best power characteristics.
ДОСЛІДЖЕННЯ НА ФІЗИЧНІЙ МОДЕЛІ ОСОБЛИВОСТЕЙ ВПЛИВУ ЗАПИЛЕНОСТІ СЕРЕДОВИЩА НА ЯКІСНІ ПОКАЗНИКИ ГАЗОВОГО, ПАЛАЮЧОГО ФАКЕЛУ
Authors: Молчанов Лавр , Синегін Євген , Голуб Тетяна , Семикін Сергій
Published: April 2021

Процес кисневого конвертування супроводжується виділенням значного обсягу газів, що містять в основному продукти реакцій окислення вуглецю, які формують палаючий факел над горловиною конвертера. При цьому з конвертера виділяється значна кількість пилу різного складу і фракції в залежності від технологічних особливостей продувки, дослідження і облік впливу якої необхідний для розуміння якісних характеристик факела і конвертерного процесу вцілому. У роботі наведені результати дослідження на фізичної моделі, що імітує палаючий факел в запиленому середовищі, шляхом введення твердих порошків різних речовин, на якісні показники горіння факела: візуальні і теплопередачу. Досліджено подачу в палаючий факел порошків хлориду натрію, оксидів заліза, кремнію та алюмінію, чистих порошків заліза, кремнію та алюмінію, сажі і графіту. Встановлено, що введення різних компонентів в факел з температурою нижче, ніж температура факела, навіть при можливому візуальному збільшенні яскравості характеристик, що зокрема встановлено при введенні хлориду натрію або порошку заліза, сприяють зниженню теплопередачі від факела за рахунок відбору тепла на нагрівання і згоряння частинок, що вводяться.
MODELING OF MAXIMALLY PARALLEL STRUCTURES OF ALGORITHMS FOR SOLVING THERMAL PROBLEMS
Authors: Moroz Dmytro
Published: April 2021

The paper demonstrates the possibility of creating a maximum parallel form of computational algorithms to solve thermal problems and their mapping to the architecture of multiprocessor systems based on solving thermal problems of mathematical physics. It is shown that an effective tool for studying heat and mass transfer problems in metallurgical production could be parallel computing technologies on distributed cluster systems with a relatively low cost and reasonably easily scalable both in the number of processors and in the amount of RAM. Tridiagonal structure systems' parallelization was implemented by a numerical-analytical approach, which predetermined their maximally parallel algorithmic form. That approach is facilitated by the minimum possible implementation time of the developed algorithm on parallel computing systems. Furthermore, during the arithmetic expressions parallel computations, the developed algorithm separates the error in the output data from rounding operations. Thus, the parallelization of tridiagonal systems based on numerical-analytical discretization methods does not impose any restrictions on the topology of the mesh nodes of the computational domain.Furthermore, as applied to the parallel computation of arithmetic expressions, it separates the initial data error from a real PC's rounding operations. That approach eliminates the recurrent structure of computing the sought-for decision vectors, which, as a rule, leads to the round-off errors accumulation. Such a parallel form of the constructed algorithm is maximal and has the shortest possible implementation time of the algorithm on parallel computing systems. The developed approach to parallelizing the mathematical model is stable for various types of input data. It has the most parallel form and is distinguished by the minimum time for solving the problem as applied to multiprocessor computing systems. That is explained as follows. If it is hypothesized that one processor can be assigned to one processor and one processor can be assigned to one node of the computational mesh domain, the computations can be processed in parallel and simultaneously for all nodes of the computational mesh domain. The simulation process was implemented on a PC cluster. It follows from the simulation results analysis that the developed method for solving the heat conduction problem effectively minimizes residuals.
DETERMINATION OF A TECHNICAL CONDITION OF THE EQUIPMENT OF THE LINE OF A DRIVE OF ROLLING ROLLS ON THE SPEED OF PROPAGATION OF THE SHOCK PULSE
Authors: Baglai Andriy
Published: April 2021

One of the ways to determine the technical condition of the equipment of the line working rolls - spindles - gear cage - root coupling - reducer - intermediate shaft - engine is considered. In each connection there is wear of contact elements, for example, bronze inserts of spindles, teeth of gears. According to the known method, the amount of current wear of the elements and the gaps caused by them at the same time is determined by the time of delay of the reaction of sections of the line to the impact load during the capture of the strip by rolls. The greater the wear, the longer the delay time. The option of determining the state of the nodes of the line by determining the speed of propagation of the shock pulse from the rolling stand to the engine is considered. An example of measuring the reaction delay time of three sections of one of the stands with calculations of the pulse rate in these sections is given. It is shown that with increasing wear, the pulse velocity decreases significantly. Therefore, this speed characterizes the technical condition of the sites, ie has a diagnostic feature. Additionally, the influence of the presence of oil, scale, and contamination in the joints is considered. It is also recommended to use the ratio of the base speed of the shock pulse in the solid shaft to the actual speed in the nodes to determine their technical condition.
THE SYNTHESIS OF AN OPTICAL THREE-BEAM OZONE SENSOR MODEL
Authors: Yehor Kiselov , Dmytro Aleksiievskyi , Kostiantyn Turyshev
Published: April 2021

The synthesis of an optical three-beam ozone sensor model for the Matlab Simulink simulation is performed. The structure of the sensor signal processing system is proposed. The simulation of the measuring system noise resistance is carried out on the basis of the developed visual block model. The dependence of the measurement error on the modulation frequency of the radiation in the optical channel is obtained. The operation modes are determined to minimize the ozone measurement error. It is shown that the precision of determining the ozone concentration in the working environment can be achieved at the level of 99.9% using the obtained results.
EXPERIMENTAL INVESTIGATION OF TRANSITIONAL PROCESSES OF THE INERTIVE DRIVE VIBRATION MACHINE
Authors: Kononov Dmytro , Miroshnyk Yevhen
Published: April 2021

Purpose: to study the transients in the vibrating machine that accompany the start from rest and run out.The studies were performed on a laboratory vibrating screen. The screen is driven by an adjustable drive - a single-shaft inertial vibrator, which has imbalances with variable mass. The screen has a resonant setting, ie h natural oscillation frequency is less than the frequency of the forcing force of the drive.The GY-521 module with the MPU6050 chip is used to measure the kinematic characteristics. This module allows you to measure linear acceleration and angular velocity.The graphs show typical graphs of changes in the acceleration points of the vibrating screen box at full cycle: from start to complete stop.The graphs show the run-out (stop) areas of the screen. There is an increase in the amplitude of the oscillation of the acceleration of the screen box during the passage of the resonant frequency. This phenomenon is characteristic of the vibrating machine with a resonant setting.
IDENTIFICATION AND PROCESSING OF DATA ANOMALIES IN MACHINE LEARNING TASKS
Authors: Kalinina Iryna , Gozhyj Oleksandr
Published: April 2021

The paper presents the procedure of identification and processing of data anomalies at the stage of preliminary data processing in machine learning tasks. The procedure consists of three stages. At the first stage, emissions are detected in the data samples. A large number of methods are used for this. The choice of a particular method depends on the task of machine learning, the structure of the data set and the types of data being processed. The methods used at this stage are methods of statistical tests, methods of metric tests, methods of model tests, iterative methods, methods of machine learning, ensemble methods. Until the second stage, the analysis of the causes of emissions is carried out. The causes of emissions include: causes of measurement errors and causes of data processing errors, the results of external influences, or errors in data records. In the third stage, there is a final processing of data sets with emissions, in which there is a removal of emissions or normalizing transformations. The effectiveness of the procedure was tested on different data sets.
MATHEMATICAL MODELS OF PROBLEMS OF OPTIMAL PLACEMENT OF ELECTRIC CAR CHARGING STATIONS AND DETERMINATION OF THEIR SERVICE AREAS
Authors: Maliienko Andrii
Published: April 2021

Modern requirements of transport communication require the use of more environmentally friendly transport, and electric transport requires a more thorough analysis of the locations of its service points, including charging stations for electric vehicles. In this paper, it is proposed to use the theory and methods of multiple coverage of sets for modeling and solving problems of optimal placement of charging stations of electric vehicles with simultaneous determination of their service areas, taking into account the possibility of overlap.
DESCRIPTION OF MOTHER AND CHARACTERISTICS OF MOTHER WHO HAVE A BABY AGE 6-11 MONTHS ABOUT VITAMIN A IN PAMEKARAN VILLAGE
Authors: Pragholapati Andria
Published: April 2021

One indicator of the success of development in the health sector can be seen from the level of maternal and infant mortality rates. One cause of death in infants and toddlers is neurological diseases including eye disease. Around the world among preschoolers there are an estimated 6-7 million cases of xerophthalmia each year, approximately 10% of them suffer from corneal damage. Among those who suffered corneal damage 60% died within one year, 25% became blind and 50-60% were half blind. This is caused due to lack of vitamin A in a child's body. To combat VAD in Indonesia, especially in infants (6-59 months) the Indonesian Ministry of Health has collaborated with Helen Keller Indonesia (IPR) by administering high doses of vitamin A capsules to infants, toddlers and postpartum mothers.

This study aims to determine the description of the attitude of mothers who have babies 6-11 months about vitamin A in Pamekaran village (conducted in April-June 2019). The design used is descriptive research. With the data obtained through the collection of questionnaire data from mothers who have babies 6-11 months. Data is presented in the form of frequency distribution with univariate analysis. With a population of 445 people, and a total sample of 82 people with a simple random sampling technique.

The results showed that more than half of respondents had negative attitudes namely 61%. Characteristics of mothers who have babies aged 6-11 months are half aged 21-35 years which is as much as 68.3%, more than half are high school educated at 73.2% and more than half are multipara at 70.7%.

Thus it can be concluded that more than half of the respondents have negative attitudes, aged 21-35 years, multigravida and high school graduates. Therefore it is expected that health workers will further enhance IEC about vitamin A and also more vigorously sweeping or giving vitamin A door-to-door.
The Anxiety in Primigravida about Adaptation to Physiological Changes During Pregnancy
Authors: Herdyana Erma , Betristasia Puspitasari
Published: April 2021

Pregnancy causes major changes in the mother's body that is less understandable to be considered mysterious and anxiety. Changes in the body of pregnant women Primigravida occur as a result of an imbalance of the hormones progesterone and estrogen. Necessary adaptation to reduce the anxiety of the changes that occur during pregnancy to maintain physical and mental health. Scientists found more than half (54%) mothers have a sense of anxious and more than a third (37%) showed signs of depression at a certain period in the period of pregnancy. This research uses Descriptive with Cross Sectional approach. This study was conducted in January 2020. Population and Sample in this study were 22 respondents Primigravida in  BPM Ny. Ani., sub District Baron,  District of Nganjuk. Data analysis using quantitative approach. The results of the research show the characteristics of gestational age from 13 to 28 weeks as many as 13 respondents (59%) and the characteristics of the gestational age 29-40 weeks as much as 9 respondents (41%). After analysis with a quantitative approach using the percentage obtained results of the 22 respondents (100%) primigravida with mild anxiety
GAMBARAN PENGETAHUAN DAN SIKAP WANITA PREMENOPAUSE DALAM MENGHADAPAI KLIMAKTERIUM DI DUSUN MULIA BAKTI DESA KARANG REJO KECAMATAN STABAT KABUPATEN LANGKAT TAHUN 2018
Authors: Seniorita Dona
Published: April 2021

Klimakterium menjadi masa peralihan dalam kehidupan normal seorang wanita sebelum mencapai senium, yang mulai dari akhir masa reproduktif dari kehidupan sampai masa non reproduktif pada wanita terjadi anatara umur 40-65 tahun. Tujuan penelitian ini adalah untuk membuktikan ada gamabaran pengetahuan dan sikap wanita premenopause DiDusun Mulia Bakti Desa Karang Rejo digunakan dalam penelitian ini yaitu Survey analitik. Populasinya wanita premenopause DiDusun Mulia Bakti Desa Karang Rejo tahun 2018. Yang didapat pengumpulan data sekunder sebanyak 80 orang. Dan sampelnya adalah seluruh wanita premenopause yang mengalami klimakterium sebanyak 40 orang. Hasil penelitian menunjukan bahwa wanita klimakterium umur 40-47 sebanayak 15 %. Ibu mengalami wanita premenopause dalam menghadapi klimakterium umur 48 >51 sebanyak 48 %. Pengetahaun wanita premenoapuse dalam menghadapi klimakterium Pengetahuan Baik sebanyak 3 orang 1,2 % ,  pengetahuan cukup sebnayak 4 %, pengetahuan kurang sebanyak 10,8 %. Disarankan kepada tenaga kesehatan untuk memberikan penyuluhan serta mengajurkan ibu untuk melakukan menghadapi klimakterium agar bisa membantu wanita yg siap untuk menghadapi klimakterium.

Kata kunci : Pengetahuan, Sikap, Premenopause, Klimakterium
GAMBARAN PENGETAHUAN IBU TENTANG KEJADIAN IKUTAN PASCA IMUNISASI (KIPI) DASAR LENGKAP DI KLINIK SEHAT KECAMATAN TAMBUSAI UTARA KABUPATEN ROKAN HULU TAHUN 2015
Authors: Saragih Hanna Sriyanti , Refika Tety
Published: April 2021

Salah satu indikator penting dari setiap makhluk hidup dengan mempertahankan diri terhadap penyakit mikroba seperti, virus, bakteri parasit dan jamur, tubuh mempunyai cara mengatasi penyakit sampai batas tertentu. Dan defenisi KIPI merupakan sebagai reaksi simpang yang dikenal sebagai kejadian ikutan pasca imunisasi (KIPI) atau advers events following immunization (AEFI) adalah kejadian medik yang berhubungan dengan imunisasi baik berupa efek vaksin ataupun efek samping, toksisitas, reaksi sensivitas, efek farmakologis, atau kesalahan program, koinsidensi, reaksi suntikan atau hubungan kasual yang tidak dapat ditentukan. Penelitian ini bersifat deskriptif dengan jumlah soal 20 buah, responden dan sebagian sampel 30 orang. Penelitian ini menggunakan desain cross sectional yang artinya dependent yang mempengaruhi gambaran pengetahuan ibu tentang kejadian ikutan pasca imunisasi dasar lengkap (KIPI) antara lain umur, pendidikan, paritas, pekerjaan, dan sumber informasi. Pengumpulan data dilakukan dengan menggunakan kuesioner dalam bentuk presentase dalam bentuk kategori. Pengetahuan responden tentang KIPI dari 30 responden, mayoritas berpengetahuan kurang 21 orang (70%), Cukup sebanyak 5 orang (16,7%), dan minoritas baik sebanyak 4 orang (13,33%). Berdasarkan penelitian ini dapat disimpulkan bahwa pengetahuan ibu tentang KIPI masih kurang. Diharapkan tenaga kesehatan di Klinik Sehat Kecamatan Tambusai Utara Kabupaten Rokan Hulu, agar lebih berperan aktif dalam meningkatkan pelayanan kesehatan dan diharapkan juga kepada ibu yang memiliki bayi 0-1 tahun agar rutin membawa anaknya ke Klinik dan selalu mengikuti pelayanan kesehatan.
GAMBARAN PENGETAHUAN IBU HAMIL TENTANG MANFAAT ASAM FOLAT DALAM KEHAMILAN DI RUMAH SAKIT HAJI MEDAN
Authors: Andarwati Rini
Published: April 2021

Asam folat (vitamin B9) sangat penting selama kehamilan, dan merupakan satu-satunya vitamin yang kebutuhannya selama hamil berlipat dua.Pemberian asam folat pada ibu hamil diketahui untuk mencegah terjadinya neural tube defect (cacat tabung saraf), terutama spina bifida (tulang belakang tidak menutup sempurna) dan anencepali (otak janin tidak terbentuk). Tujuan dari penelitian ini adalah untuk mengetahui gambaran pengetahuan ibu hamil tentang manfaat asam folat dalam kehamilan di Rumah Sakit Haji Medan. Metode penelitian yang digunakan adalah survei deskriptif. Populasi yang digunakan adalah ibu – ibu hamil yang berkunjung ke Poliklinik Ibu Hamil RS Haji Medan dan diambil sampel sebanyak 74 orang. Sampel diambil dengan menggunakan metode Nonprobabillty Sampling dengan jenis sampel jenuh dimana semua anggota populasi menjadi sampel. .Penelitian ini menggunakan instrumen berupa kuesioner. Dari hasil penelitian didapat bahwa responden dengan pengetahuan baik memiliki persentase yang baik yaitu 55.40%, pengetahuan cukup 35.14% dan pengetahuan kurang 9.46 %. Kesimpulan dari penelitian tersebut didapat bahwa dalam hal pengetahuan ibu hamil tentang manfaat asam folat dalam kehamilan termaksud dalam kategori baik. Saran yang bisa diberikan adalah lebih ditingkatkan lagi program penyuluhan gizi bagi ibu hamil dan perlunya keterlibatan keluarga (suami, orangtua ataupun mertua) dalam menjaga nutrisi ibu hamil.
PENGARUH FAKTOR PREDISPOSISI PENDUKUNG DAN PENDORONG IBU TERHADAP PEMBERIAN ASI EKSKLUSIF DI WILAYAH KERJA PUSKESMAS PANGIRKIRAN KECAMATAN HALONGONAN KABUPATEN PADANG LAWAS UTARA TAHUN 2015
Authors: Harahap Ica Fauziah , Siagian Albiner , Tampubolon Elmina
Published: April 2021

Maternal breast feedy is the best nutrition at the early age of the baby's life. Exclusive breastfeeding is given only breast milk for baby without any additional food up to six months old. The Target exclusive breastfeeding in the Health Service of North Padang Lawas District is 85% but the scope of exclusive breastfeeding in the Puskesmas of Pangirkiran in February 2014 amounted to 30.5% and the scope of exclusive breastfeeding in August 2014 amounted to 36.2%. This study was an observational research design with a case-control and the study aims to analyze the influence of predisposing factors  (knowledge,  attitudes), enabling factors (lactation), reinforcing factors (family support, support health workers) loward exclusive breastfeeding in the working area Puskesmas of Pangirkiran Halongonan sub district of Halongonan district of North Padang Lawas. The Population of this research is all breast feedy mothers  who has baby in 6 – 12 months. The sample is 144 people consist of is people in 72 cases and 72 controls. Based on the results of the study indicate the variables of knowledge, attitude, lactation, family support and support health workers influence on exclusive breastfeeding. Expected to health workers in health centers in the Puskesmas Pangirkiran to further improve counseling on exclusive breastfeeding to the public so that exclusive breastfeeding to the baby can be improved.
HUBUNGAN TINGKAT KEPARAHAN GINGIVITIS DENGAN DERAJAT HIPERTENSI DI POLI GIGI RUMAH SAKIT UMUM PUSAT H ADAM MALIK MEDAN
Authors: Utami Sri , Ria Ngena , Herlinawati Herlinawati
Published: April 2021

Hipertensi adalah peningkatan tekanan sistolik dan diastolik darah arteri. Manifestasi oral dari hipertensi secara klinis kurang dapat dikenali, namun sering menimbulkan efek gingivitis. Perdarahan gusi atau  gingival, merupakan tanda awal dari inflamasi pada gingival yang dikenal dengan gingivitis. Penelitian ini bertujuan untuk mengetahui hubungan tingkat keparahan gingivitis dengan derajat hipertensi menggunakan metode analitik dengan rancangan cross sectional. Subyek penelitian adalah pasien gingivitis disertai hipertensi di Poli Gigi RSUP H Adam Malik Medan. Pengambilan sampel menggunakan teknik consecutive sampling. Jumlah sampel sesuai kriteria inklusi dalam kurun waktu 24 hari hari buka berjumlah 60 pasien gingivitis dengan hipertensi. Data yang dikumpulkan adalah tingkat keparahan gingivitis diperoleh dengan mengukur perdarahan gingival menggunakan prob menghasilkan Papilla Bleeding Index (PBI) dan derajat hipertensi diukur dengan tensimeter air raksa. Data dianalisa menggunakan sistem komputerisasi. Hubungan tingkat keparahan gingivitis dengan dengan derajat hipertensi menggunakan uji Spearman pada tingkat kepercayaan 95%. Hasil penelitian diperoleh nilai p=0,013 maka terdapat hubungan yang bermakna antara tingkat keparahan gingivitis dengan derajat hipertensi. Kekuatan hubungan menunjukkan hubungan yang sedang dengan nilai r=0,336 dan berpola positif. Dari persamaan garis dapat diprediksi bahwa pada tingkat gingivitis ringan (PBI=1) akan terjadi hipertensi derajat I (140-159 mmHg/90-99 mmHg). Disarankan agar hasil penelitian ini dapat dijadikan sumber informasi dan referensi adanya hubungan yang bermakna antara gingivitis dengan hipertensi di perpustakaan Politeknik Kesehatan Kemenkes Medan.dan RSUP H Adam Malik Medan