bluuebunny/crossref_metadata_2025 huggingface dataset:
Penerapan Model Pembelajaran Problem Based Learning (PBL) pada Keterampilan Menulis Teks Drama
Authors: Yuli Kiswantini
Published: October 2021

The purpose of this research is to describe the application of problem based learning learning models in drama writing skills. The problem is that the eighth grade students of SMPN 4 Pandak are still having trouble finding ideas or ideas in writing drama texts. The location of the study was at SMP Negeri 4 Pandak. The study was conducted in class VIII Cpada Semester II of the 2018/2019 Academic Year. The research subjects were students of class VIII C, with 28 students consisting of 13 male students and 15 female students. The data collection technique was carried out through observations on the skills of writing text and the practice of playing drama. The results of the study showed that there was an improvement in the learning outcomes and skills of students in class VIII C Drama Text Writing material. Before using the PBL model students who achieved mastery learning outcomes were 15 students or 53.6%, while 13 students or 46.4% were not yet finished. After using the PBL learning model there was an increase in student learning outcomes ie all students (28 students) completed their learning outcomes or 100%. Thus there was an increase in completeness by 46.4%.
Evaluasi Pengelolaan Laboratorium Komputer di SMKN Keahlian TKJ Kota Padang
Authors: Masril Mardhiah , Ambiyar  , Rizal  Fahmi
Published: October 2021

Goals evaluation research ini untuk menggambarkan keefektifan pengelolaan laboratory computer pada jurusan TKJ di SMKN Kota Padang ditinjau dari dimensi konteks, input, proses, dan produk. Pada evaluation research ini melakukan pendekatan dengan pendekatan deskriptif kuantitatif. Model evaluasi yang diimplementasikan ialah evaluasi model CIPP : Context, Input, Process, Product. Metode yang digunakan adalah metode survei dan alat pengumpul data berupa angket, lembar observasi dan dokumentasi. Informan penelitian yang terdiri dari 4 Kepala SMKN, 4 Wakil kepala sekolah bidang sarana dan prasarana, 4 Kajur TKJ, 4 Kepala Lab. Komputer, 21 guru TKJ, dan 168 siswa TKJ kelas XI tahun ajaran 2018/2019. Hasil penelitian pada Jurusan TKJ di SMKN Kota Padang mengatakan bahwa: (1). Segi konteks, keefektifan pengelolaan laboratory computer pada kondisi sangat baik dengan pencapaian skor persentase sebesar 86,96%; (2). Dilihat dari segi input keefektifan pengelolaan laboratory computer kondisi sangat baik dengan pencapaian skor rata-rata sebesar 86,46%; (3). Dilihat segi process keefektifan pengelolaan laboratory computer dalam kondisi baik dengan pencapaian skor rata-rata sebesar 7,0%; dan (4). Dilihat segi product keefektifan pengelolaan laboratory computer dalam keadaan baik dengan skor pencapaian sebesar 77,06%.
Penggunaan Metode Tutor Sebaya Untuk Meningkatkan Aktivitas dan Hasil Belajar Materi Resistor
Authors: Fuadi Eny Haryanti
Published: October 2021

Tujuan dari penelitian ini adalah untuk meningkatkan aktivitas dan hasil belajar materi resistor pada peserta didik kelas X TAV1 SMK Negeri 1 Adiwerna tahun pelajaran 2016/2017. Penelitian ini menggunakan metode tutor sebaya yang dilaksanakan dalam dua siklus. Berdasarkan hasil penelitianÂ  terjadi peningkatan aktivitas belajar peserta didik dari rata-rata 73,95 % pada siklus I meningkat menjadi 87,49 % pada siklus II. Hasil belajar peserta didik juga terjadi peningkatan dari kondisi awal prosentase jumlah peserta didik yang tuntas sebesar 56,25% meningkat menjadi 75% pada siklus I dan pada kondisi akhir siklus II menjadi 87,50 %. Hal ini menunjukkan bahwa hasil belajar secara klasikal tergolong tuntas (telah melampaui ketuntasan klasikal yaitu 80 %). Â Â
Pembentukan Karakter Disiplin Peserta Didik Yang Berbasis Kemaritiman Melalui Kepemimpinan Multikultural
Authors: Sartika Dewi
Published: October 2021

Penelitian ini bertujuan untuk pembentukan karakter disiplin peserta didik yang berbasis kemaritiman melalui kepemimpinan multikultural di SMK SUPM Yamipura Suradadi Kabupaten Tegal. Populasi dan sampel penelitian ini adalah 30 peserta didik. Metode penelitian yang digunakan dalam penelitian ini adalah analisis deskriptif kuantitatif. Pengumpulan data dalam penelitian ini menggunakan dekumentasi dan angket. Analisa data yang penulis gunakan adalah teknik analisis deskriptif persentase dan uji t-test. Hasil penelitian menunjukkan bahwa karakter disiplin peserta didik sebelum diterapkan kepemimpinan multikultural di SMK SUPM Yamipura Suradadi Kabupaten Tegal adalah dalam kriteria rendah 8 peserta didik (26,7%). Sedangkan karakter disiplin peserta didik setelah diterapkan kepemimpinan multikultural di SMK SUPM Yamipura Suradadi Kabupaten Tegal adalah dalam kriteria tinggi sebanyak 12 peserta didik (40,0%). Pembentukan Karakter Multikultural dilakukan di sekolah dengan memanfaatkan kultur sekolah meliputi : Artifak sekolah, Upacara-upacara di sekolah, Tata tertib sekolah, Nilai-nilai dan keyakinan. Pembentukan Karakter Multikultural dilakukan di sekolah dengan memanfaatkan kultur sekolah. Kultur sekolah diyakini memiliki peran dalam menghasilkan produktivitas kerja yang baik pada masing-masing individu dan unit kerja sekolah. Dari hasil analisis diperoleh nilai thitung sebesar 5,63. Nilai thitung tersebut kemudian dikonsultasikan dengan ttabel pada taraf signifikan 5 % atau (? 5 %) dengan derajat kebebasan N-1 atau 30 – 1 = 29 dimana diperoleh ttabel = 2,042 ternyata thitung = 5,63 > ttabel = 2,042 yang berarti hipotesis nihil ditolak dan menerima hipotesis alternatif berbunyi “Pembentukan karakter disiplin peserta didik yang berbasis kemaritiman dapat ditingkatkan melalui kepemimpinan multikultural di SMK SUPM Yamipura Suradadi Kabupaten Tegal.
Validitas Pengembangan Mobile Learning Berbasis Moodle di Sekolah Menengah Kejuruan Pariwisata Aisyiyah Pada Mata Pelajaran Pengetahuan Bahan Makanan
Authors: Darlis Santi Titen , Faridah Anni
Published: October 2021

The use of learning media in Aisyiyah Tourism Vocational School is still dominant in using printed books and less using mobile-based learning media, so it is felt to be less effective in learning and makes students passive. So the development of Moodle-based Mobile Learning media is necessary for the learning process. The purpose of this research is the development of Moodle-based Mobile Learning in Aisyiyah Tourism Vocational School in the subject of valid Food Ingredients Knowledge. The development method is R&D for education, with the Four-D development model. Data retrieval was carried out by giving instruments to validators of media experts and material experts, data analysis using Aikens V, the research location was Aisyiyah Tourism Vocational School, West Sumatra, class X-cooking class students. The results of research on Moodle-based Mobile Learning learning media as interactive media from product validity tests based on media validation an average of 0.92 is declared "Valid" and material validation is declared "Valid" an average of 0.87, so Moodle-based Mobile Learning learning media is very feasible to be applied in the learning process at the Aisyiyah Tourism Vocational School.The use of learning media in Aisyiyah Tourism Vocational School is still dominant in using printed books and less using mobile-based learning media, so it is felt to be less effective in learning and makes students passive. So the development of Moodle-based Mobile Learning media is necessary for the learning process. The purpose of this research is the development of Moodle-based Mobile Learning in Aisyiyah Tourism Vocational School in the subject of valid Food Ingredients Knowledge. The development method is R&D for education, with the Four-D development model. Data retrieval was carried out by giving instruments to validators of media experts and material experts, data analysis using Aikens V, the research location was Aisyiyah Tourism Vocational School, West Sumatra, class X-cooking class students. The results of research on Moodle-based Mobile Learning learning media as interactive media from product validity tests based on media validation an average of 0.92 is declared "Valid" and material validation is declared "Valid" an average of 0.87, so Moodle-based Mobile Learning learning media is very feasible to be applied in the learning process at the Aisyiyah Tourism Vocational School.
DEFAMATION IN THE FIELD OF HEALTH CARE: COLLEGIALITY OF DOCTORS VS. CRITICAL ASSESSMENT OF DOCTORS' ACTIVITIES
Authors: Tereshko K. Y.
Published: October 2021

From the scientific point of view, the issue of defamation is poorly researched and not properly regulated at the legislative level. This this issue is even more crucial if talking about defamation in the field of health care.

Defamation is the dissemination of unreliable information about a person, which degrades their honor and dignity, damages business reputation. Defamation is synonymous with the notion “humiliation of honor, dignity and business reputation”. In general, Ukrainian legislation does not use the term defamation, however, as a laconic meaningful word of foreign origin, it is actively used in practice and in the legislation of some other countries.

It should be noted that the unreliability (falsity) of the information disseminated together with the conclusion that it defames a person; are the integral part of the definition of responsibility for defamation. Otherwise, if the disseminated information does not defame the person, although it does not correspond to reality, there would be no defamatory tort.

Defamation is the legal institution through which civil law strikes a balance and implements the above-mentioned conflict between the constitutional right to refute unreliable information, i.e. the judicial protection of honor, dignity and business reputation, on the one hand; and, on the other, constitutional law to the freedom of thought and speech, freedom of the media.

Therefore, it is expedient to form a “defamatory balance” between the collegiality of physicians and a critical assessment of their conduct, which can be achieved by the prevailing right to freedom of expression to protect the lives and health of patients, action in the public interest, based on the case law of the European Court of Human Rights.
The Politics of Evaluating Cannabis Regulation in Uruguay
Authors: Fiore Mauricio , Pereira Paulo
Published: October 2021

Evaluation of the impacts of recent cannabis regulation policies includes important political dimensions and should not be reduced either to binary verdicts of success versus failure, or to a unidimensional assessment criteria. Based on the Uruguayan case, the article discusses the complexity of evaluating the results of cannabis regulation, assessing, among other aspects, the political dynamics surrounding implementation. In the case presented, the predominance of concerns about crime and public security was a decisive factor.
Concepción en inseminación artificial a tiempo fijo con y sin hormona gonadotrofina coriónica equina
Authors: Alva Tafur Gudelio , Murga Valderrama Nilton Luis
Published: October 2021

El objetivo de la presente investigación fue determinar la tasa de concepción en inseminación artificial a tiempo fijo con y sin hormona gonadotrofina coriónica equina (eCG). El experimento contó con 42 vacas de 1 a 4 partos se dividieron en 2 tratamientos: “T1” protocolo con eCG (n=21) y “T2” protocolo sin eCG (n=21) (protocolo modificado de Gabriel Bó). Para el “T1” el día de inicio se colocó un dispositivo intravaginal DIB®, luego se aplicó 0.8ml de benzoato de estradiol (ESTROVET®) ). El día 8, se retiró el dispositivo DIB® más 2ml de prostaglandina (SINCROCIO®) más 0.5ml de cipionato de estradiol (ESTROGAL®) y 2ml (eCG) (NOVORMON®). El “T2”, fue similar al protocolo anterior con la diferencia de que no se suministró hormona (eCG) (NOVORMON®). 50 horas después de retirado el dispositivo se insemino y se aplicó 2ml de GnRh (CONCEPTASEâ). 40 días después se hizo diagnóstico de preñez con ultrasonografía. Se hizo una evaluación con un cuadro anova. Los resultados sugieren que no existe diferencia estadística significativa entre los grupos tratados, pero si diferencias numéricas a favor del tratamiento 1. En conclusión, el uso de hormona gonadotrofina coriónica equina eleva el porcentaje de preñez.
Efecto de dos tipos de fertilizantes y abonos en el rendimiento del repollo corazón de buey (Brassica oleracea)
Authors: Epiquien Torrejo Nestor Claumer , Idrogo Vásquez Guillermo
Published: October 2021

El presente estudio tuvo como objetivo determinar el efecto de la aplicación de dos tipos de fertilizantes y abonos sobre el rendimiento del repollo corazón de buey (Brassica oleracea). Para ello, se identificó el lugar donde se instaló la unidad experimental que cumplió los requisitos de homogeneidad y se empleó un diseño experimental de bloques completamente al azar (DBCA) con 9 tratamientos y 3 repeticiones. Se realizó el análisis de varianza con la prueba de Tukey (p=0,05). Los resultados indican que hubo diferencias significativas para peso de cabeza, longitud de planta, longitud de cabeza y diámetro de cabeza donde destaca mayormente el tratamiento T3 (Nutrifer Papa Sierra + Gran guano) con mejores promedios. Con respecto al rendimiento por parcela y hectárea se evidenció diferencias entre tratamientos donde el T3 alcanzó los mayores promedios con 17,07 kg y 105,35 t/ha respectivamente, demostrando que la fertilización orgánica en interacción con la mineral influyó positivamente en el rendimiento del cultivo de repollo. Se concluye que el rendimiento por unidad experimental fue mayor con una fertilización de 25 g de Nutrifer Papa Sierra + 7 t/ha de Gran guano, alcanzando 17,07 kg. y el rendimiento por hectárea fue superior con la aplicación de 25 gramos Molimax Papa Sierra/Planta + Guano de isla 7 t/ha, con 105,35 t/ha.
Modelamiento sísmico en base a unidades de albañilería de suelo cemento en la región Amazonas
Authors: Ramírez Vásquez Walter
Published: October 2021

La presente investigación tuvo como objetivo determinar la respuesta al modelamiento sísmico de una vivienda en base a unidades de albañilería suelo cemento, en la Villa San Juan, Magdalena, región Amazonas, Perú, para tal finalidad se hizo la extracción de muestras de suelo y arena, para el análisis correspondiente en el Laboratorio de Suelos, Concreto y Asfalto de la Dirección Regional de Transportes y Comunicaciones de la región Amazonas, de ello se obtuvo una mezcla, con 40% de aporte  de tierra colpar y un 60% de aporte arena de cerro, procediendo a elaborar el Ladrillo de Tierra Comprimida, con adición de 7%, 11%, 15% y 19% de cemento en peso respecto a la mezcla, determinándose sus propiedades físico-mecánicas; lo que generó estadísticamente un mejor comportamiento en sus propiedades físicas y mecánicas, en el lote experimental L3 (19%), concluyéndose que el modelamiento sísmico de la vivienda modelo, presenta respuesta admisible según normas E 0.70, E 0.30, E0.20 del RNE.
Vulnerabilidad sísmica estructural de instituciones educativas públicas, aplicando el método de benedetti-petrini
Authors: Moreto Tuesta Cristian , Mechato Jiménez María Jose , Díaz Jáuregui Guillermo Arturo
Published: October 2021

La presente investigación tuvo como objetivo evaluar la vulnerabilidad sísmica estructural de tres instituciones educativas públicas del centro histórico de la ciudad de Chachapoyas en la región Amazonas Perú. Se evaluaron tres instituciones  educativas: Virgen Asunta, Institución Educativa Isabel Lynch de Rubio y la Institución Educativa Seminario Jesús María, aplicando el método de Benedetti y Petrini. Se encontró que la vulnerabilidad sísmica de la Institución Educativa Virgen Asunta, es BAJA, excepto los módulos C y D que presentan una vulnerabilidad MEDIA A BAJA. La vulnerabilidad sísmica de la Institución Educativa Isabel Lynch de Rubio, es BAJA, excepto los módulos D y E que presentan una vulnerabilidad MEDIA A BAJA. La vulnerabilidad sísmica de la Institución Educativa Seminario Jesús María, es BAJA. Finalmente se determinó que el Peligro Sísmico de las tres Instituciones Educativas Públicas del Centro Histórico de Chachapoyas en evaluación es MEDIO y la estimación del Riesgo Sísmico de las 03 Instituciones Educativas es MEDIO.
Análisis microbiológico del agua de consumo humano del Centro Poblado Pachapiriana, Provincia de Jaén, Perú
Authors: Mejía Taboada Lucy Marlita , Zelada Herrera María Edita , Torres García Luz Azucena , Cuse Quispe Jaime
Published: October 2021

El trabajo de investigación tuvo como objetivo determinar el nivel de contaminación microbiológica del agua de consumo humano en el Centro Poblado Pachapiriana, distrito de Chontalí, Provincia de Jaén, Perú en el año 2019. La población estuvo constituida por 100 viviendas y la muestra de estudio fue 40 y 4 pozos de abastecimiento de agua. Utilizó la Técnica del Número Más Probable en la cual obtuvimos como resultados que las muestras tienen que ser < 1,8/100 ml; mientras que los resultados obtenidos son > 6.8/100 ml elevado para coliformes totales, para coliformes fecales dio como resultado > 4/100 ml y para E. Coli; si se obtuvieron tres muestras (9 – 18 y 31) con el valor indicado del D.S. Nº 031-2010 que es 1,8/100 ml, las 37 muestras restantes tienen presencia de E .coli por que el resultado es > 2/100 ml. Se concluye que, con base a la prueba presuntiva, confirmativa y completa realizadas, se determinó que el agua que se abastece al C.P. Pachapiriana, no reúne las condiciones microbiológicas para ser considerada apta para el consumo humano debido a que todas las muestras presentan un NMP importante de coliformes fecales, totales y E. coli lo que indica que el agua está contaminada con materia fecal.
Ensuring economic security of the municipalities: best practices
Authors: Starovoitov Vladimir Gavrilovich
Published: October 2021

The subject of this research is the best practices of ensuring economic security of municipalities of the Russian Federation. The object of this research is the process of ensuring economic security of the municipalities. The author meticulously examines the state of economic security of municipalities of the Russian Federation. Special attention is given to monotowns, whose economy is dominated by a single industry or company. It is underlined that the critical state of backbone enterprises usually leads to deterioration of economic security and emergence of crisis phenomena in socioeconomic sphere of the municipalities. The article presents practical experience of restoring the role of the Russian textile factory during bankruptcy proceedings. Rendering support to the backbone enterprises in overcoming crisis situations, the municipalities simultaneously address the issues of ensuring their economic security and socioeconomic development. The novelty of this research consists in the statement that restoration of the activity of backbone enterprises and ensuring economic security in the Russian municipalities is possible, even in the conditions of bankruptcy proceedings of the backbone enterprises. Ensuring the economic security of Russian municipalities is achieved by active support of the backbone enterprises by local communities; implementation of modern management methods in assessment of the state of economic objects, initiation of measures for overcoming crisis phenomena in the economy of municipalities; development of constructive principles as the foundation for supporting the backbone enterprises and ensuring economic security of the municipality. Positive experience acquired by the municipality “Kirzhachsky District of Vladimir Region” in ensuring its economic security by supporting and restoring the role of the backbone enterprise of the district remains relevant, and can be implemented by other Russian municipalities in their management practice.
Symbolism of the blue/light blue color in the English and German publicistic texts
Authors: Boyarkina Anastasiya Andreevna , Popova Larisa Georgievna , Shvedova Irina Viktorovna
Published: October 2021

This article aims to determine similarities and differences in manifestation of symbolism of the blue/light blue color in the English and German publicistic texts. The subject of this research is the semantics of English and German lexemes representing the blue/light blue color in both languages. The symbolism of this color designation is selected due to its insufficient coverage in comparative linguistics. Based on the material of lexicographic sources, the author describes the dictionary meanings of the aforementioned lexemes, which resemble symbolism of the blue color in the English and German publicistic texts. The scientific novelty lies in the establishment of similarities and differences of symbolism of the blue/light blue color on the example of the English and German publicistic texts, highlighting that in the English texts, the lexemes that denote these colors are used more often than in the German texts (English word ‘blue’; German word ‘blau’). The conducted analysis reveals that in the English publicistic texts, symbolism of the blue/light blue color is applied in creation of precedent names, as well as nominations of affiliation to a particular party, nobility, symbol of nobleness, purity, or despondency, suppression of wrongdoing. In the German publicistic texts, this color designated affiliation to the political party, or authorization document for foreign employees. Comparison of the content of lexemes ‘blue’ and ‘blau’ in the English and German texts reveals more similarities. However, in the English publicistic texts, this lexeme denotes the symbolism of sadness, despondency, or noble descent.
Perfil de crianças e adolescentes internados em uma unidade de tratamento de queimados
Authors: Santos Dienia Andrade dos , Takeshita Isabela Mie , Araújo Claudirene Milagres , Prado Mara Rúbia Maciel Cardoso do , Passos Camila Mendes dos , Henriques Bruno David , Ayres Lílian Fernandes Arial , Novato Thiago Filipe , Souza Fernanda de , Moura Luciana Ramos de
Published: October 2021

Objetivo: Analisar o perfil clínico-epidemiológico de crianças e adolescentes, vítimas de queimaduras, atendidas em um hospital de referência no estado de Minas Gerais. Métodos: Estudo epidemiológico, descritivo, retrospectivo-documental e quantitativo. Amostra de 251 prontuários de crianças e jovens com 0-19 anos internados em um centro de tratamento de queimados e UTI pediátrica. Resultados: Observou-se maior predominância de internações em indivíduos do sexo masculino (59%); a faixa etária mais acometida foi entre 1-2 anos (27%). A escaldadura foi o agente causal mais frequente (46%); o tipo de queimadura mais prevalente foi a de segundo grau profundo (54%); os membros superiores (63%) foram os mais acometidos e a média de tempo de internação foi 29,62 dias. Conclusão: Visto que o perfil clínico-epidemiológico de crianças e adolescentes, vítimas de queimaduras, apresentaram uma variação relacionado aos agentes causais de acordo com a faixa etária e a maioria desses acidentes ocorreu na própria residência, é necessário investir em estratégias intersetoriais de sensibilização para prevenir queimaduras, onde medidas preventivas simples podem ser eficazes.
Estratégias utilizadas pelo enfermeiro da atenção primária na educação em saúde de hipertensos: revisão integrativa
Authors: Santos Felipe Antonio Cunha dos , Paiva Andyara do Carmo Pinto Coelho , Fonseca Adélia Dayane Guimarães , Diaz Flávia Batista Barbosa de Sá , Gonçalves Letícia de Cássia Assis , Zanela Letícia Rocha Marques , Amorim Thaís Vasconselos , Paiva Luciano Côrtes , Nazareth Juliana Bernardo , Salimena Anna Maria de Oliveira
Published: October 2021

Objetivo: Conhecer as estratégias empregadas pelo enfermeiro da atenção primária na educação em saúde de hipertensos. Métodos: Trata-se de uma revisão integrativa, com buscas realizadas entre os meses de setembro e outubro de 2020, nas bases de dados Cumulative Index to Nursing and Allied Health Literature, Medical Literature Analysis and Retrieval System Online, Literatura Latino-Americana e do Caribe em Ciências de Saúde e Scientific Electronic Library Online com os descritores: educação em saúde, enfermagem, hipertensão e atenção primária à saúde. Resultados: As estratégias utilizadas pelo enfermeiro para realizar atividades educativas em saúde direcionadas aos hipertensos são: estratégias grupais, sala de espera, visita domiciliar e a consulta do Hiperdia. Os estudos revelam que, muitas vezes, essa educação ainda é pautada na transmissão vertical e ressaltam sobre a importância do estabelecimento do vínculo e do diálogo para que a sensibilização da pessoa com HAS seja efetiva. Considerações finais: Os modelos tradicionais, centrados no modelo biomédico, ainda são preponderantes nas práticas educativas. Os enfermeiros, inseridos nos cenários da atenção primária, precisam conhecer e se empoderar de outras estratégias educativas.
Prototype Pengontrol Dan Monitoring Pompa Air Untuk Pengairan Sawah Berbasis IoT
Authors: Harnansyah Banang Mufti , Sunaryantiningsih Ina , Fandidarma Bayu
Published: October 2021

Penelitian ini bertujuan untuk memudahkan petani atau seseorang mengendalikan pompa air sawah sesuai kebutuhan yang diinginkan cukup mengendalikan dengan smartphone dari manapun dan kapanpun. Tujuan penelitian ini yaitu untuk memberi solusi petani yang terkendala jarak sawah dan rumah pemilik yang jauh, pemilik sawah harus menyeberang sungai menggunakan perahu, pemilik sawah sudah memiliki pekerjaan tetap sehingga jarang ke sawahnya dan memperkenalkan kepada petani tentang manfaat menggunakan Internet of Things (IoT). Hasil penelitian ini menunjukkan bahwa Prototype Pengontrol Dan Monitoring Pompa Air Otomatis Untuk Pengairan Sawah Berbasis Internet of Things (IoT) berhasil dijalankan. Bahasa pemrograman yang digunakan yaitu bahasa C. Hasil dari pengujian prototype ini dapat berjalan dengan cukup baik tetapi masih memiliki kekurangan antara lain saat menggunakan prototype ini harus menunggu delay kurang lebih 5 detik, sensor kelembaban tanah dan ketinggian air bila digunakan terus - menerus kurang akurat, dan sambungan internet yang digunakan harus stabil supaya memperoleh data secara real time dan berjalan dengan baik.
Rancang Bangun Mobil Remote Control Pemantau Area berbasis IoT menggunakan ESP 32 Cam
Authors: Fandidarma Bayu , Laksono Ridam Dwi , Pamungkas Krisna Warih Bintang
Published: October 2021

Mobil Remote Control (RC) ini dirancang guna untuk membantu tim relawan dalam mencari korban bencana alam gempa bumi dan juga mengurangi resiko tim relawan jika terjadi sesuatu yang tidak diinginkan. Mobil RC ini dikendalikan oleh IoT dari ESP 32 Cam yang menjadi otak dari sebuah mobil RC ini dari analisis yang di dapatkan mobil bergerak dengan lancar dan tidak ada masalah dan semua fungsi nya berjalan dengan lancar. Driver L298N sebagai penggerak motor dc untuk dapat berjalan maju, mundur, kanan, kiri.
A method of hidden messages embedding in graphlike structures of a social network
Authors: Нечта И.В.
Published: October 2021

Предложен новый метод передачи скрытых сообщений в социальных сетях на примере сети “Вконтакте”, позволяющий через структуру графа друзей пользователя внедрять секретные сообщения. Получены количественные оценки объема внедряемого сообщения в графы различного размера. Показана необходимость добавления избыточности во внедряемое сообщение. Представленный метод позволяет использовать другие графоподобные структуры социальной сети для внедрения скрытых сообщений.

Purpose. This article addresses the construction of a new method for transmission of hidden messages in social networks.

Methodology. The research employs methods of information theory, probability theory and mathematical statistics The Shannon entropy is used as the statistics for the analysis of an embedded message.

Findings. The author proposed using the graphical structures of social networks as a container for the secret message transmission for the first time. As an example, the popular Vkontakte network is considered. The main idea of the method involves using the structure of the user’s friends graph to embed a secret message. Based on the available vertices (friends’ accounts), a complete graph is constructed, and its edges are enumerated. Each edge of the graph corresponds to one bit of the message being embedded: the bit is “1”, if the edge is present in the graph (one account in friends of the other), the bit is “0” if the edge is missing.
To transfer the graph from one person to another, a key vertex is used. The specified vertex is connected by an edge with each connected component of the graph, which allows the graph to be transmitted using a single node and take into account all the vertices (including isolated ones). When retrieving a message, the key vertex and the edges connected to it are not considered.

Conclusions. During the experimental research, it was shown that messages extracted from an empty container differ from the encrypted message by the probability distribution of bits. The necessity of adding redundancy to transmitted secret messages is shown with the purpose of “leveling” the statistical properties of an empty and filled container. The results of the experiment have showed that this method of steganography allows embedding a large amount of information into various social network structures represented in the form of a graph. It was noted in the paper that potentially “narrow” place of the algorithm is registration of new accounts. The restrictions imposed by the administration of some social networks for security purposes do not always allow automatic registration of new accounts, which makes the process of message embedding more difficult.
Monitoring of cryogenic processes of the Yamal Peninsula based on radar data TANDEM-X and ALOS-2 PALSAR-2
Authors: Кирбижекова И.И. , Чимитдоржиев Т.Н. , Дворников Ю.А. , Дагуров П.Н. , Дмитриев А.В. , Быков М.Е. , Балтухаев А.К.
Published: October 2021

Приведены результаты исследования возможности применения поляриметрических и интерферометрических данных X-иL-диапазонов TanDEM-X и ALOS-2 PALSAR-2 для мониторинга криогенных рельефообразующих процессов полуострова Ямал. Выполнен статистический анализ сезонных изменений интенсивности и параметров поляриметрической Н - А - α -декомпозиции на участках с оползнями, активно растущими и пассивными термоцирками научного полигона Васькины дачи.

The article presents the results of the developed methods for thermal-degradation processes detection and monitoring based on the X- and L-bands radar data. The research objects are developing thermocircuits and collapsing slopes in the coastal zone of ten lakes of “Vaskiny Dachi” polygon (Central Yamal, 70∘15′N, 69∘05′E). To detect the formed and active cryogenic formations TanDEM-X and ALOS-2 PALSAR-2 interferometric and polarimetric data (VV, VH) of 2015-2016 were used.

The research was carried out in three directions: 1) digital terrain models (DTM) with high resolution construction using differential interferometry methods and the cryogenic formations topographical features identification, temporal changes in DTMs observation; 2) comparative statistical analysis of the total intensity and the polarimetric Н-А-α -decomposition components for cryogenic formations and adjacent stable sites; 3) development of a technique for express detection of such formations on the basis of total intensity and polarimetric Н-А-α -decomposition components images texture.

It is established that the intensity, polarimetric characteristics, topography parameters and textures of radar images significantly differ from those for neighbouring stable regions (more than 3 σ ) for active thermocircuits. Intensity variations are most significant, but the localization of cryogenic formations can be limited by the radar survey geometric conditions. For passive thermocircuits, landslides in the coastal zone, deviation of intensity and polarimetric characteristics from background ∼ σ , therefore as an indicator a set of polarimetric Н-А-α -decomposition parameters should be used. Combining parameters α and H can be the basis for express diagnostics of the occurrence and activation of cryogenic processes in the area of the present study.
Mathematical modelling of woody particles pyrolysis in a fixed bed
Authors: Донской Игорь Геннадьевич
Published: October 2021

Рассмотрена задача термического разложения совокупности последовательно расположенных древесных частиц с учетом внешнего тепломассообмена с газовым потоком и внутренних физико-химических процессов (теплопроводность, диффузия, фильтрация, сушка и химическая реакция). Математическая модель строится из субмоделей одиночных частиц, сопряженных по потокам теплоты и массы. Результаты численных расчетов позволяют исследовать динамическое поведение частиц в условиях плотного слоя, что представляет интерес при проектировании малых энергетических установок на биотопливе.

The development of new energy technologies requires the improvement of mathematical models to describe the physical and chemical processes taking place in power plants. The process of wood particles fixed-bed pyrolysis is investigated in this paper: this process takes place both in the traditional combustion of wood fuels in fixed-bed boilers and in energotechnology processes aimed at producing combustible gases and chemical products (tar, charcoal). The problem of pyrolysis of a set of successively located wood particles is considered. Each particle is considered as an object with an internal distribution of temperature, pressure and concentrations. A system of equations is constructed for a single particle, including external heat and mass transfer between the particles and the ambient gas flow combined with internal physicochemical processes (heat conduction, diffusion, filtration, drying and chemical brutto-reaction of the organic mass decomposition producing gases and solid residue). The temperature of the gas in the pores of the particles is equal to the temperature of the solid. Using the model of pyrolysis of a single particle, it is possible to reproduce the known experimental data. The mathematical model of a fixed-bed pyrolysis is based on submodels of single particles, conjugated over heat and mass flows. The interaction between the particles composing the layer is reduced to heat fluxes: radiant heat transfer between the surfaces of adjacent particles occurs in the bed, as well as convective heat transfer between the heated gas and particles. The result is that each next particle layer is heated at a smaller temperature difference. On the one hand, the intensity of heat transfer decreases, on the other hand, the efficiency of using heat increases. The results of numerical calculations make it possible to study the dynamic behavior of particles in a fixed bed, which is of interest in the design of small power plants using biofuels.
Numerical study of the aerodynamic and power characteristics of the cycloidal rotor, under incoming flow
Authors: Дектерев Александр Анатольевич , Дектерев Артем Александрович , Горюнов Юрий Николаевич
Published: October 2021

Исследование направлено на разработку и апробацию методики численного моделирования аэродинамических и энергетических характеристик циклоидального ротора. За основу взята конфигурация ротора IAT21 L3. Для нее с использованием CFD-пакета ANSYS Fluent построена математическая модель и выполнен расчет. Проанализировано влияние скорости набегающего потока воздуха на движущийся ротор. Математическая модель и полученные результаты исследования могут быть использованы при создании летательных аппаратов с движителями роторного типа.

This article addresses the study of the aerodynamic and energy characteristics of a cycloidal rotor subject to the influence of the incoming flow. Cycloidal rotor is one of the perspective devices that provide movement of aircrafts. Despite the fact that the concept of a cycloidal rotor arose in the early twentieth century, the model of a full-scale aircraft has not been yet realized. Foreign scientists have developed models of aircraft ranging in weight from 0.06 to 100 kg. The method of numerical calculation of the cycloidal rotor from the article [1] is considered and realized in this study. The purpose of study was the development and testing of a numerical simulation method for the cycloidal rotor and study aerodynamic and energy characteristics of the rotor in the hovering mode and under the influence of the oncoming flow. The aerodynamic and energy characteristics of the cycloidal rotor, rotating at a speed of 1000 rpm with incoming flow on it with velocities of 20-80 km/h, were calculated. The calculation results showed a directly proportional increase of thrust with an increase of the incoming on the rotor flow velocity, but the power consumed by the rotor was also increased. Increase of the incoming flow velocity leads to the proportional increasing of the lift coefficient and the coefficient of drag. Up to a speed of 80 km/h, an increase in thrust and power is observed; at higher speeds, there is a predominance of nonstationary effects and difficulties in estimating the aerodynamic characteristics of the rotor. In the future, it is planned to consider the 3D formulation of the problem combined with possibility of the flow coming from other sides.
Modified method of dynamic programming for optimization of hydraulic modes of distribution heating networks
Authors: Новицкий Николай Николаевич , Луценко Александр Викторович
Published: October 2021

Предложена оригинальная модификация метода динамического программирования, предназначенная для оптимизации гидравлических режимов распределительных тепловых сетей, опирающаяся на специальные свойства задачи. Продемонстрировано, что предложенная модификация метода динамического программирования обладает высокой вычислительной эффективностью по сравнению с возможными альтернативными методами дискретно-непрерывной оптимизации и гарантирует получение оптимального решения задачи.

The paper discusses the problem of optimizing the hydraulic modes of the distribution of heat networks (RTS), which arises at the stage of preparing heating systems for the next heating season. The urgency of this task is due to the significant reserves of energy saving, improving the reliability and quality of heat supply to consumers, which can be realized through the optimal organization of RTS operation modes. Currently, there are no formally rigorous and simultaneously computationally efficient methods for solving this problem. A new effective method for optimizing RTS modes is presented, based on a dynamic programming scheme, which takes into account the specifics of the problem (specified flow distribution) and RTS topology (a tree in a single-line representation, multicontourness in a two-line representation, symmetry of supply and return pipelines). The proposed solution overcomes the main problem of applying the traditional dynamic programming scheme when optimizing multi-loop pipe networks associated with the need to comply with the second Kirchhoff law on contours when building conditionally optimal trajectories. The basic idea is to reduce the contours of the design scheme to parallel connections of branches (on the direct course of the algorithm) with simultaneous cutting of both non-optimal and inadmissible fragments of trajectories. And the latter here are easily cut off both in terms of the membership of the phase variables of the admissible region and in satisfying Kirchhoff’s second law. The reverse move is reduced to a simple procedure of unfolding the design scheme in the reverse sequence of reduction, in order to restore the optimal values of phase variables on it. Numerical examples illustrate the effectiveness of the proposed method, its suitability for solving problems with discrete and continuous optimality criteria, multi-criteria optimization, the possibility of solving several optimization problems simultaneously.
Lattice Monte Carlo model of Langmuir evaporation of ABsemiconductors
Authors: Шварц Наталия Львовна , Усенков Станислав Валерьевич , Настовьяк Алла Георгиевна , Спирина Анна Александровна
Published: October 2021

Целью работы являлось изучение процессов, протекающих при ленгмюровском испарении подложек полупроводников AB. Предложена и реализована решеточная Монте-Карло модель ленгмюровского испарения GaAs и InAs. Моделирование высокотемпературных отжигов проводилось на базе программного комплекса SilSim3D. В модели учтены процессы образования и диссоциации молекулярного мышьяка и формирования капель металла. Выделены области температур, при которых происходило конгруэнтное и неконгруэнтное испарение. Показано, что температура конгруэнтного испарения на поверхности (111)B ниже, чем на (111)A. На поверхностях (111)А образование капель начиналось вблизи ступеней вицинальных поверхностей, а на (111)B капли образовывались случайным образом на террасах.

Purpose. The aim of the work is to study the processes occurring during the Langmuir evaporation of ABsemiconductor substrates. Methodology. The study of GaAs and InAs Langmuir evaporation was performed with the help of Monte Carlo simulation method. Simulation of high-temperature annealing was carried out on the basis of the SilSim3D software complex. The paper presents the abilities of the “Substrate Generator” software complex programs by which the model objects creation and the computing experiments results analysis were carried out. The four-component system, consisting of metal atoms (gallium or indium) in the solid and liquid phases and arsenic in the atomic and molecular form, was considered. The model takes into account the metal droplets formation and the processes of creation and dissociation of molecular arsenic. Each of the processes is characterized by its activation energy. The choice of the model parameters is based on the agreement between simulated and experimental temperature dependences of equilibrium pressure of semiconductor components and arsenic solubility in the liquid metal (gallium, indium) of GaAs and InAs systems over a wide temperature range. Findings. For two surfaces orientations of the model substrates ((111)A and (111)B), the temperatures regions of congruent and incongruent evaporation were determined. It was shown that the temperature of congruent evaporation on the (111)B surface is lower than on (111)A. On the (111)A surfaces, droplet formation starts near the steps of the vicinal surfaces and on (111)B droplets are formed uniformly on the terraces. Value. The obtained model results on the GaAs Langmuir evaporation agree with known experimental data. The results on InAs evaporation leads to the prediction for future experiments.
Screening of severe storms for possible rogue waves
Authors: Глозман Михаил , Сладкевич Михаил
Published: October 2021

Научно-исследовательский институт береговой и морской инженерии (CAMERI) проводит волновые измерения для израильской компании Ports Development & Assets Company Ltd (IPC) с использованием принадлежащих IPC буев направленного волновода Datawell в двух местах вблизи израильского побережья: Ашдод с апреля 1992 года и Хайфа с ноября 1993 года. Данные этих измерений используются для различных видов исследований, в том числе для статистического и экстремального анализа. Для всех основных штормов (пик максимальной высоты волны H более 6 м), начиная с декабря 2010 года были произведены поиски выдающихся событий с использованием временных рядов смещений буев по данным регистраторов. Этот метод исключает любую возможность ошибки из-за интерференции. Два таких события произошли 7 января 2015 года в Хайфе и 19 января 2018 года в Ашдоде. Для каждого такого события с производителем буев связались для получения их мнения и возможного объяснения. Хотя первое событие, скорее всего, следует учитывать как артефакт, второе (19 января 2018 года), скорее всего, было реальное событие, количественные параметры которого были искажены процедурой обработки данных буёв. Этот документ сообщает подробности о событии от 19 января 2018 года, включая тесную связь между записями волн и ветра.

Coastal and Marine Engineering Research Institute Ltd (CAMERI) conducts wave measurements for Israel Ports Development & Assets Company Ltd (IPC) using IPC-owned Datawell directional waverider buoys at two locations near Israeli coast: Ashdod since April 1992 and Haifa since November 1993. Data from those measurements is used for different types of studies, including statistical and extreme value analysis. All major storms (peak of significant wave height H over 6m) starting from December 2010 were searched for outstanding events, using time series of buoy displacements as extracted from buoys dataloggers. This method eliminates any possibility of interference-induced errors. Two such events were encountered: one of January 7, 2015 at Haifa, and the other of January 19, 2018 at Ashdod. For each such event the buoy manufacturer was contacted for their opinion and possible explanation. While the first event should most probably be considered as artifact, the second one (January 19, 2018) was most probably a real event which quantitative parameters were distorted by the buoy data processing procedure. This paper reports details about the event of January 19, 2018, including close correlation between wave and wind records.
Executing JavaScript compositions of WPS-services in the distributed heterogeneous environment
Authors: Бычков И.В. , Ружников Г.М. , Фёдоров Р.К. , Шумилов А.С.
Published: October 2021

Предлагается использовать язык программирования JavaScript для задания и выполнения композиций сервисов обработки пространственных данных в распределенной гетерогенной среде. Основным отличием данного подхода от существующих является автоматическое планирование вызова сервисов и возможность обработки результатов выполнения сервисов в теле сценария стандартными средствами языка.

The service-oriented approach (SOA) has recently gained wide implementation in the field of distributed computations. SOA allows publishing of various software packages, algorithms, data sources in a form of atomic services.

Distributed services are actively used for the processing of large volumes of spatial data using the open data formats and service interfaces standards. Because of the constant increase in number of developed services theirs compositions became widely used to solve complex interdisciplinary problems. The service composition is the set of services with defined interaction that is intended to solve specific complex task.

This work considers existing service composition and execution method and proposes an implementation of the distributed service compositions using the JavaScript programming language.

The proposed approach differs from other ones which also assume usage of programming languages in order to create compositions. The current approach allows automatic scheduling of service calls in order to minimize the overall composition execution time, the actual composition execution process is tolerant to changes in computational environment and the intermediate results inside of compositions can be processed using the regular programming language tools.

The proposed approach of creating service compositions using the JavaScript programming language allows processing of intermediate data using the standard tools of the chosen programming language and compatible libraries, as well as using service results in control structures. The spatial service composition method allows applying existing scheduling algorithms and parallel spatial data processing techniques in heterogeneous computational environment. The approach is implemented as a multi-user internetsystem.