bluuebunny/crossref_metadata_2025 huggingface dataset:
NSA (New Stream Algorithm) simmetrik oqimli shifrlash algoritmini kriptotahlil usullariga baholash mezonlari
Authors: Xudoykulov Z.T. , Boyquziyev I.M. , Rahmatullayev I.R.
Published: April 2024

Mazkur maqolada, NSA (New Stream Algorithm) deb nomlangan yangi oqimli shifrlash algoritmi taklif etilgan. Ushbu algoritm 128-bit maxfiy kalit va 128-bit boshlang‘ich vektorlardan foydalanadi va har bir raundda 64-bit chiqish qiymati hosil qiladi. Algoritmning me’moriy va dasturiy amaliyotlar uchun mosligi, qayta sinxronizatsiya hujumi, bog‘langan kalit hujumi va chiqish ketma-ketligining linear korrelyatsiyasi asosida o‘tkazilgan hujum usullariga qarshi xavfsizligi baholanadi. NSA algoritmining tegishli kalit asosidagi hujumlarga va qayta sinxronizatsiya hujumlariga, shuningdek, differentsial va linear kriptotahlil kabi an’anaviy usullarga qarshi qanchalik bardoshli ekanligi batafsil tahlil qilinadi. Tahlil natijalari NSA algoritmi xavfsiz oqimli shifrlash algoritmi ekanligini tasdiqlaydi. Shu bilan birga, algoritmining turli xavf-xatarlarga qarshi turish qobiliyati, jumladan, an’anaviy va zamonaviy tahdidlarga qarshilik ko‘rsatishi muhokama qilinadi. Tahlillar mazkur algoritmni xavfsiz oqimli shifrlash algoritmi ekanligini tasdiqlaydi.
Geoaxborot tizimi va modelini yaratish asosida yer osti suvlari monitoringini yuritilishi
Authors: Djumanov J.X. , Abduvaitov A.A. , Kudratov R.B. , Babadjanov A.F.
Published: April 2024

Geoaxborot tizimlari texnologiyalari insoniyat xo‘jalik faoliyati natijasida to‘plangan turli xildagi ma’lumotlarni saqlash va qayta ishlash imkoniyatini beradi. Ushbu maqolada ArcGIS dasturi yordamida yer osti suvlari uchun geoaxborot avtomatlashtirilgan tizimini tuzish va undan turli injener-geologik masalalarini yechishda foydalanish yo‘llari ko‘rib chiqiladi. Bunda mavjud ma’lumotlar bazasi asosida xo‘jalik faoliyatida tabiiy va turli inson tomanidan yaratgan resurslardan foydalanish natijasida yuzaga keladigan turli geologik jarayonlarni tahlil qilish va bashoratlash masalalarini yechishda yetarli darajadagi batafsil maxsus tematik xaritalar tuzish masalalari keltirilgan.
Turizm sohasida kompyuter ontologiyasining o‘rni
Authors: Bekmurodov U.B.
Published: April 2024

Zamonaviy dunyoda sun’iy intellekt va kompyuter texnologiyalaridan foydalanib turli sohalar masalalari yechilmoqda. Turizm sohasini bugungi kunda kompyuter texnologiyalarisiz tasavvur qila olmaymiz. Bilimlar bazasini loyihalash usullarini qo‘llagan holda ontologiyadan foydalanish tizimni yanada rivojlantirish imkonini beradi. Turizm ontologiyasini yaratishda tadqiqot arxitekturasini yaratish lozim. Ontologiyaga yo‘naltirilgan tavsiyalar tizimining konseptual sxemasini yaratadi. Turizm ontologiyasi kontsepsiyasi asosida sayyoh ontologiyasi bog‘lanadi. Ontologiyani takomillashtirish jarayoni asosida turizm ontologiyasi mukammal ishlashi nazorat qilinadi. Maqolada turizm sohasida kompyuter ontologiyasini yaratish hamda sayyoh uchun qulay, aniq bo‘lgan diqqatga sazovor joylarni qidirish masalalari ko‘rib chiqilgan hamda ular asosida sohani rivojlantirishga qaratilgan takliflar ishlab chiqilgan.
Численное решение задачи кросс диффузии с нелокальными граничными условиями и с источником
Authors: Урунбаев Ж.Э.
Published: April 2024

Данная статья исследует асимптотику автомодельных решений нелинейной системы кросс-диффузии с нелокальными граничными условиями и источником. Основные результаты работы включают в себя получение главного члена асимптотики автомодельных решений и предложение метода выбора оптимального начального приближения для итерационного процесса, необходимого для численного исследования задачи. Представленные в статье асимптотические концепции и методы придают значимость теории горения, особенно в контексте анализа реакций, происходящих при горении. Учитывая, что скорость химической реакции сильно зависит от температуры, асимптотический подход может быть полезным для моделирования таких процессов. Также проведен численные расчеты и анализ результатов, используя асимптотические формулы в качестве начального приближения для итерационного процесса. Этот подход позволяет более эффективно и точно решать рассматриваемую задачу. В целом, статья представляет важный вклад в понимание и моделирование процессов горения с использованием асимптотических методов и численных расчетов.
Republicanismo e democracia: a neutralização política do povo como instrumento de violência política no Brasil contemporâneo
Authors: De Sousa Rodrigo Ribeiro
Published: April 2024

A Lei Federal nº 14.197/21, conhecida como Lei de Defesa do EstadoDemocrático de Direito, embora tenha inovado na tipificação do crime de“violência política”, deixa dúvidas quanto à sua efetividade para impediras práticas de violência política mais comuns no Brasil contemporâneo,quais sejam, a violência praticada em razão da contrariedade entrevisões políticas ou simpatia partidária do eleitor e aquela cometida pordeclarações preconceituosas das autoridades, que expressam uma recusano reconhecimento do direito alheio a um posicionamento políticodivergente. Condutas como essas têm por pressuposto uma rejeição dauniversalidade do princípio da igualdade e evidenciam, em última análise,o caráter autoritário da sociedade brasileira, principal dificuldade paradesenvolvimento do Estado Democrático de Direito no Brasil. Partindodesse pressuposto, o propósito do presente artigo é explicitar os elementosideológicos que permitem a perpetuação de práticas autoritárias no Brasil,bem como analisar em que medida as “inovações democráticas” propostaspor Hélène Landemore em seu recente livro Open democracy permitemcombater a “oligarquização da democracia”, que limita a participação políticados cidadãos comuns a um envolvimento episódico e superficial, restrito ao solitário momento do voto, constituindo-se como o mais extenso e cruel instrumento de violência política no Brasil.
Uma crítica da violência: de Benjamin a Butler
Authors: Alves Marco Antônio Sousa
Published: April 2024

Existe algum tipo de violência boa ou legítima? A violência é ummeio capaz de interromper formas tradicionais de opressão e construir ummundo menos violento? O presente artigo pretende retomar essas questõestradicionais e defender novos modos de ação política por meio de uma“crítica da violência”, ou seja, uma reflexão sobre como, de maneira instávele conflituosa, a violência é constituída e percebida por nós. Para realizar essatarefa, recorreremos ao projeto delineado pelo jovem Walter Benjamin noensaio “Para uma crítica da violência” e à sua retomada por Judith Butler, nolivro "A força da não violência", que defende uma postura política militantee agressiva, mas radicalmente não violenta. Em um mundo cada vez maisradicalizado, especialmente no Brasil, entendemos que uma crítica filosóficapode contribuir para interromper a espiral da violência e abrir novoshorizontes teóricos e práticos para a luta contemporânea.
Porque a representação simbólica enquadra o engajamento público parlamentar
Authors: Bandeira Cristina Leston , Caetano Renato Duarte
Published: April 2024

Recentemente, as atividades de engajamento público do Parlamentodo Reino Unido vêm se expandindo de forma considerável. Frenteàs quedas nos níveis de confiança, o Parlamento investiu uma quantidadeconsiderável de tempo e recurso no desenvolvimento de novas atividadescom foco especial no engajamento: recursos educacionais e eventos culturais,assim como muitos outros. O parlamento incorpora um novo papelde crescente importância, sobretudo quando se leva em consideração ocontexto do parlamento do século XXI. O presente artigo analisa os objetivose as consequências do engajamento público para a representação,identificando as principais mudanças que afetaram a relação entre o públicoe o Parlamento, assim como explorando o papel potencial representativodo engajamento público. Fazemos uso de evidências provenientes deuma análise documental e de entrevistas em profundidade e de elite comfuncionários do Parlamento para mostrar que o engajamento público temcomo objetivo desenvolver no público um senso de conectividade que seancora em formas mais simbólicas e coletivas da representação, algo que visa apresentar a instituição dissociada de seus atores e políticas. Utilizamos teorias construtivistas da representação para sustentar nossa análise.
Identifying International Legal Trends for Managing Transboundary Groundwater Resources
Authors: Eckstein Gabriel
Published: April 2024

Humanity is heavily dependent on transboundary groundwater resources and aquifers for its freshwater. As a result, policymakers, groundwater managers, water law professionals, and the public must become more aware about this critical resource to ensure its sustainable use into the future. This book reviews the handful of treaties and informal arrangements implemented by various nations around the world for the assessment, use, allocation, and protection of cross-border groundwater and aquifers. It also identifies international legal trends, practices, and priorities emerging from these instruments, identifies gaps and shortcomings in the emerging legal regime, and offers recommendations for further development of the law.
Comparing landscape characteristics to understand Malayan tapir (Tapirus indicus) conflicts: A case study in Negeri Sembilan
Authors: Zanuari Amirul Hakimi , Othman Khadijah , Mohamed Mohd Sanusi , Magintan David , Hambali Kamarul , Mansor Mohammad Saiful , Zainal Abidin Kamaruddin
Published: April 2024

The IUCN Red List has listed the Malayan tapir (Tapirus indicus) as an endangered species in 2016, owing to its declining population trend. Human-caused forest degradation and encroachment on wildlife habitats drive this species to roam out of its natural range, resulting in human-tapir conflict (HTC). This study executes kernel density analysis on 78 HTC points recorded in Negeri Sembilan from 2013 to 2018 to determine the high and low HTC zones, and investigates the influence of five landscape variables on the occurrence of HTC. Values of five landscape variables in high and low HTC zones were extracted, and the significance of occurrence between these two zones was tested using an independent sample t-test. In terms of spatial distribution, Kuala Pilah and Jelebu covered high-conflict zones, while the lowest conflict zone was in Rembau. The t-test indicated that elevation (t = –3.551, p < 0.05) and slope (t = –2.012, p < 0.05) were significant between high and low conflict zones. Distance to the forest (t = 1.424, p > 0.05), distance to water (t = –0.106, p > 0.05), and distance to urban areas (t = –1.536, p > 0.05) were not significant for HTC. HTC tends to occur in low topographic areas, while tapirs outside of their natural habitat forage in close proximity to the forest and water bodies, but restrict their movement near human settlements. Hot Spot Analysis (Getis-Ord Gi*) on forest patches revealed an overlaping region between high HTC zones and low forest-patch contiguity, indicating that forest fragmentation may promote tapir conflicts. Hence, by systematically recording the conflict distribution in Negeri Sembilan, many actions could be taken into consideration to mitigate HTC in this state.
Assessing students’ environmental literacy on sustainability through Knowledge -Attitude-Practice (K-A-P) approach in the Ecosystem Discovery Journey (EDJ) Programme
Authors: Zubir Farhah Izzati , Mohamed Ahmad Fariz , Mohamad Ismail Shaharuddin , Alias Nurul Ashikin
Published: April 2024

A successful transition towards sustainability in the university context requires incorporation of three important aspects based on knowledge, beliefs, values and actions among all stakeholders, particularly students, through environmental education and literacy. Hence, this study aims to assess the level of environmental literacy, encompassing knowledge, attitude and practice (KAP) of undergraduate students enrolled in the LMCP1522: Ecosystem Discovery Journey (EDJ) course in Universiti Kebangsaan Malaysia. A quantitative study was conducted, involving a survey and structured questionnaires completed by 108 students, also known as Eco-volunteers (Ekorelawan). The collected data were analysed by applying the descriptive and inferential statistics. The findings showed a high level of environmental knowledge (94.4%), positive environmental attitude (56.5%) and fair/moderate environmental practice (69.5%) among students. The study also found positive and significant relationships between environmental knowledge, attitude and practice among the students through Spearman correlation test. The analysis discovered that students acquired environmental knowledge through electronic media, particularly social media as their primary source. The findings of the study illustrated a general depiction of environmental literacy level among students and provided general direction for policy discussion with respect to environmental education in Malaysian higher education institutions.
Harmony in Biodiversity: Spearheading the Global Biodiversity Agenda through National Policy on Biological Diversity (NPBD) 2022-2030
Authors: Rosman Faedzul Rahman , Syed Aziz Sharifah Shakinah , Mohd Yunus Syafiqah
Published: April 2024

In the heart of Malaysia's commitment to biodiversity conservation, lies a comprehensive strategy encapsulated in the National Policy on Biological Diversity (NPBD) 2022-2030. With five ambitious goals, the policy is a guiding light for the nation, steering stakeholders towards a future where the rich tapestry of ecosystems, species and genetic diversity flourishes. The correlation between this national policy and the global biodiversity framework under the Convention on Biological Diversity (CBD) is evident, providing a robust framework for sustainable development.
Pengembangan Media Pembelajaran Multimedia Interaktif Wordwall untuk Percepatan Kemampuan Berhitung Perkalian Siswa Paket A PKBM Al Hasyimi II
Authors: Sumilah Sumilah , Rusmawati Retno Danu , Harwanto Harwanto
Published: April 2024

The results of the initial survey found that students' multiplication counting skills and the use of interactive multimedia learning media tools were very low. On the other hand, the ability to count is needed every day, so researchers need to innovate to develop wordwall interactive multimedia learning media to help speed up multiplication arithmetic skills. This type of research is the Borg and Gall Model Development Research. The results of this research product are in the form of manuals for the use of interactive multimedia learning media Wordwall. The target of this research were class 1 package A students at PKBM Al Hasyimi II. The feasibility level of this guide is seen based on the validity of the assessment of material experts, media experts and design experts. The validation results of material experts obtained 94.70%, media experts obtained 84.50%, and design experts 92.50% so that the validation results of 3 experts can be categorized as very good/very feasible. To see the students' responses to wordwall interactive multimedia learning media, trials were carried out in 2 stages, namely small group trials and large group trials. After that conducted interviews and observations of students. The results of the interviews and observations made show that wordwall interactive multimedia learning media can help students learn multiplication.
Pengaruh Model Pembelajaran Inkuiri dan Kemampuan Komunikasi Matematis terhadap Hasil Belajar Siswa
Authors: Faruq Faruq , Sumiharsono Rudy , Triwahyuni Eges
Published: April 2024

The research objectives were: to find out 1) is there an effect of the inquiry learning model on learning outcomes, 2) is there an effect of mathematical communication skills on learning outcomes, and 3) is there an influence of the inquiry learning model and mathematical communication skills together on the learning outcomes of Class VIII students -A and VIII-B at MTs Negeri 5 Banyuwangi. The research design is causal quantitative. The method of determining the area by purposive sampling area. The population research technique population research as many as 42 students. Data collection techniques: 1). interview, 2). observation, 3). documentation, 4). questionnaire, 5). test. Questionnaire data was tested through instrument testing, validity testing and reliability testing. The classic assumption test includes the normality test, homogeneity test, autocorrelation test, heteroscedasticity test, and finally the hypothesis test includes the t test and F test. The results of the t test, the effect of the inquiry learning model on learning outcomes t count is higher than t table (1.446> 0.681). The results of the t test, the effect of mathematical communication skills on learning outcomes t count higher than t table (6.454> 0.681), F test results, the effect of inquiry learning models and mathematical communication skills on learning outcomes F count value is greater than F table (3.427 >3,24).
Pengaruh Penggunaan Metode Pembelajaran Contextual Teaching and Learning, Cooperative Learning, dan Gaya Berpikir Siswa terhadap Kemampuan Memahami Konsep Mata Pelajaran PPKn Siswa Kelas VIII di SMP Negeri 57 dan 49 Surabaya
Authors: Djelita Ruti Diah Puspita , Fatirul Achmad Noor , Wiyarno Yoso
Published: April 2024

This study focuses on the existence of significant differences in the ability to understand concepts between students who are taught by contextual teaching and learning and cooperative learning methods, there are significant differences in the ability to understand concepts between students who have a concrete sequential thinking style, abstract sequential, concrete random, and abstract randomization, as well as the interaction between learning methods and thinking styles on the ability to understand the concepts of Civics subjects for class VIII students at SMP Negeri 57 and 49 Surabaya. This type of research is experimental research. Quasi-experimental research design using a non-equivalent control group design. The population of this study were class VIII students of SMP Negeri 57 and 49 Surabaya for the 2022/2023 academic year. The research sample used a sampling technique with details of 72 students in the experimental class and 70 students in the control class. The data collection method is to use a student thinking style test instrument and a test of the ability to understand "Strengthening National Commitment." Methods of data analysis using Two Way Anava. The results of this study indicate that there is a significant difference between the treatment of students who are taught using the contextual teaching and learning method compared to the cooperative learning method. There are differences in the ability to understand concepts in students who have concrete sequential, abstract sequential, random concrete, and random abstract thinking styles between groups of students who are treated with the contextual teaching and learning method compared to the cooperative learning method. There is interaction between learning methods and thinking styles on the ability to understand concepts as a result of each different characteristic of each student in terms of their respective thinking styles.
Pengaruh Peran Kepala Sekolah dan Penggunaan Media Pembelajaran terhadap Motivasi Mengajar Guru di Sekolah SMP Negeri di Kecamatan Bula Kabupaten Seram Bagian Timur
Authors: Rochmawati Nur , Ratumanan T.G. , Rahabav P.
Published: April 2024

This study aims to determine (1) the influence of the role of the principal on teaching motivation, (2) the effect of the use of instructional media on teacher teaching motivation, (3) the effect of the role of the principal and use of instructional media jointly on teacher teaching motivation in public junior high schools in the district of Bula, East Seram regency. This type of research is expost-facto using quantitative methods. Data collection was carried out using a questionnaire or a Likert distribution questionnaire. The population as well as the sample in this study were all 69 PNS/Non PNS school principals and teachers from 3(three) public junior high schools in Bula District, East Seram Regency. The results showed that: 1) the role of the school principal (X1) had an effect on teachers’ teaching motivation (Y) by 6.3% based on (R square) of 0.063, (2) The use of instructional media (X2) had an effect on teachers’ teaching motivation (Y) of 23.6% besed on (R square) of 0,236, and (3) the role of the school principal (X1) and the use of instructional media (X2) has an effect on teacher motivation (Y) of 23,7% based on (R square) of 0.237. Based on the results of the reseach conducted, the variabel of the role of the school principal and use of learning media should be increased in order to increase the motivation to teach teachers in public junior high schools in Bula District, East Seram Regency.
Analisis Perilaku Lesbian dalam Perspektif BK Islami
Authors: Mei Yulianti Eva , Pramudia Trisnani Rischa , Ariswanti Triningtyas Diana
Published: April 2024

Adolescent same-sex attraction has led to negative behaviors and challenges among adolescents, particularly in Bulu Village. The emergence of lesbianism in this community indicates a departure from societal norms regarding sexuality, causing intimidation and issues within the local populace. This study concentrates on integrating Islamic values and counseling into the attitudes of LGBT groups, particularly junior and senior high school students. Using a qualitative approach, the research took place in Bulu Village over four months during the 2021/2022 academic year. Primary data came from interviews and observations, while secondary data were derived from documentation. The findings reveal that respondents' deviant sexual orientation falls into the moderately deviant category. They experience attraction to the same sex and even engage in romantic relationships. An Islamic perspective aims to guide these individuals in changing their attitudes, assisting those struggling with sexual orientation and lesbian viewpoints. Challenges faced by respondents include managing daily life and avoiding deviant behavior. Strategies include acknowledging wrongdoing, seeking repentance, avoiding negative influences, and maintaining positivity.
Analisis Isi Buku Ajar Bahasa Arab Terhadap Peningkatan Minat Belajar Bahasa Arab Siswa Kelas X Mas Ppm Al-Yusriyah
Authors: Azroi Muhammad Habib , Lubis Zulfahmi
Published: April 2024

This research was conducted to analyze how the contents contained in Arabic Language Textbooks can affect the learning interest of MAS PPM-AL YUSRIYAH students in class X. In conducting this research, researchers applied qualitative research methods with data collection techniques used were interviews, documentation, distribution of questionnaires, and make direct observations. The results obtained in this research activity have shown that the Arabic language book has criteria that meet the requirements in terms of discussion and the content of the material in it is in line with the scientific foundation in which there are: the strength of the material provided, the security of the contents of the material, and supporting materials . If assessed based on the gradation, presentation, and selection of the textbook, it meets the required criteria and can be entered properly. The use of Arabic Textbooks has been proven to increase students' interest in learning Arabic. The material presented in detail coupled with the methods and ways of teaching the teacher in the classroom can add enthusiasm to student learning.
Perbedaan Penyesuaian Diri Anak dalam Belajar di Rumah Saat Pandemi COVID-19 Ditinjau dari Dukungan Sosial Orang Tua dan Self Regulation Anak di Kota Gorontalo
Authors: Suryana Jamin Nunung , Sutisna Icam , Gia Fitriah , Abdullah Mutiara
Published: April 2024

In this study, the goal to be achieved was to determine differences in children's adjustment to learning at home during the Covid 19 pandemic in terms of parents' social encouragement and children's self-regulation in the city of Gorontalo. The approach used in this research is quantitative. The method used in this study is a survey method using data collection techniques through questionnaires. There are three questionnaires used, namely the child's self-adjustment questionnaire, the parent's social encouragement questionnaire, and the self-regulation questionnaire. The research subjects were 120 parents who had children aged 5-7 years who attended state kindergartens in the city of Gorontalo. The sampling technique uses proportional random sampling, which means that the sampling takes into account the representation of all state kindergarten schools evenly in every sub-district throughout Gorontalo City. The data analysis technique used is a two-way ANOVA hypothesis test. Previously, the data had been tested for validity and reliability as well as assumption tests so that the data produced was completely unbiased and consistent. Hypothesis test results F = 0.683 with p = 0.508 (p <0.05) so there is no interaction between children's self-adjustment and learning at home during the Covid-19 pandemic in terms of parental social support and children's self-regulation. In addition, the results of hypothesis testing between children's adjustment to parental social support obtained F=0.095 with p=0.910 (p<0.05) meaning that there was no difference in child adjustment in terms of parental social support. Likewise, if the hypothesis test between the child's self-adjustment and the child's self-regulation yields F = 0.064 with p = 0.614 (p <0.05) it means that there is no difference in the child's adjustment in terms of the child's self-regulation. So it can be concluded that there is no difference in children's adjustment to learning at home during the Covid 19 pandemic in terms of social support and parental self-regulation both collectively and individually.
Analisis Pengaruh Modal Manusia dan Penggunaan Teknologi Informasi Komunikasi (TIK) Terhadap Pengembalian Pendidikan Di Indonesia
Authors: Haminati Nur , Kamarni Neng
Published: April 2024

This study aim to determine the return to education in Indonesia analyzed based on various types of education as well as the influence of human capital and ICT use. Method used to analyze is the Mincerian Earning Function with the Heckman Two Step approach. We use micro data from the March 2021 National Socioeconomic Survey obtained from the Indonesian Central Bureau of Statistics. We found increasing years of school will increase the return to education just as work experience will increase the return of education, but increasing work experience will lead to a decrease in return on education. Individual characteristics, namely the male population with unmarried status, residing in urban areas, working in secondary business fields and the formal sector and with full working hours will increase the return on education. Health variables that cause a decrease in education returns as a result of the COVID-19 pandemic conditions in Indonesia. The return of general education and vocational education, and non-formal education is higher than madrasah education or Islamic education. The use of computers and the Internet for economic activity purpose provides excellent value for increasing educational returns.
Penggunaan Teknologi dalam Pembelajaran Bahasa Inggris: Studi Kasus Implementasi Aplikasi E-Learning
Authors: Dian Yuliani Paramita Putu
Published: April 2024

This research aims at the Use of Technology in English Language Learning: Case Study of E-Learning Application Implementation. The method used in this research is Systematic Literature Review. Data collection techniques with documentation from Google Schoolar. Data analysis with critical review. Implementation of e-learning applications in English learning has great potential to increase the effectiveness and accessibility of education. In this case study, technology is used as a tool to integrate English learning materials interactively and flexibly. As a result, students can access learning resources anytime and anywhere, increasing their participation and engagement in the learning process. In addition, e-learning applications also enable more efficient monitoring and assessment of student progress. However, the success of this implementation relies heavily on good design, user training, and adequate technical support to maximize the potential of learning English through this technology.
Pengaruh Profesional Guru Dalam Penggunaan Media Video Interaktif Terhadap Motivasi Belajar Dan Aktivitas Belajar di SMP
Authors: Arestalia Nike Pebri , Sumiharsono Rudy , Triwahyuni Eges
Published: April 2024

The problem in this research is whether there is an influence of training methods and the use of video media together on the reaction speed of teenage volleyball athletes in Class 1) bottom serve, 2) bottom pass, 3) top pass. Variable stalk muscle. Causal quantitative research design. The method for determining the area is purposive sampling area. Population research techniques population research. Data collection techniques: 1) Observation, 2) Interview, 3) Documentary, 4) Questionnaire, 5) Test. Data analysis 1) Instrument test, 2) Classic assumption test, 3) hypothesis test. The results of the t test on reaction speed (0.737>0.682), the t test of the use of video media on reaction speed (0.855>0.682), the results of the F test of t test of training methods and the use of video media on reaction speed (11.384>2.87). So it can be concluded that the training method and video media influence reaction speed so that H0 is rejected.
Pengaruh Motivasi Dan Supervisi Kepala Sekolah Terhadap Peningkatan Penggunaan Media Audio Visual Pada Guru TK
Authors: Asiseh Wageyati , Sumiharsono Rudy , Triwahyuni Eges
Published: April 2024

The aim of the research was to determine whether there is an influence of school principal supervision on teaching motivation and increasing the use of audiovisual media among kindergarten teachers in the PAUD 02 Kalibaru cluster. The research design uses causal quantitative. The method for determining areas is purposive area sampling. The population research population research technique was 32 Kindergarten teachers in the PAUD 02 Kalibaru cluster. Data collection techniques: 1). observation, 2). documentary, 3). questionnaire, 4) interview. The interview results are then processed into several instrument tests from validity and reliability tests, then classic assumption tests including normality tests, homogeneity tests, autocorrelation tests, and heteroscedasticity tests, and finally hypothesis tests which include t tests and F tests. Effect of t test results. Principal Supervision on Teaching Motivation Audio Visual Media Together (3.254>3.33).
Pemanfaatan Metode SAS (struktural analitik sintetik) Dalam Meningkatkan Kemampuan Membaca Permulaan Dan Menulis Permulaan Siswa Tunarungu Wicara
Authors: Mera Maria Agustina , Sumiharsono Rudy , Kustiyowati Kustiyowati
Published: April 2024

The purpose of this study is to describe the use of the SAS (Synthetic Structural Analytical) method in improving the beginning reading and writing skills of first graders with speech impairments. This research is a class action research (CAR). Data collection techniques are carried out through observation, documentation, and tests. Data analysis was carried out in this study using descriptive analysis, namely data reduction, data presentation, and drawing conclusions. The results of the study show that: 1) using the synthetic structural analytic method (SAS) can improve the beginning reading and writing skills of grade 1 students, 2) using the synthetic structural analytic method (SAS) in learning to read beginning and start writing is carried out in stages, namely two cycles experienced a significant increase where students in cycle 1 were categorized as 'less' than the average value of 66.6 and in cycle II they increased to the category of 'very good' with an average value of 81.1. Thus the synthetic structural analytic method (SAS) needs to be used as a reference by teachers in early reading and writing learning activities in elementary schools.
4. Simulasi Separasi Bom Single Release dengan Pendekatan Quasi-Steady pada Pesawat EMB-314 Super Tucano
Authors: Handoko  , Jengkar Sapta , Ndaomanu Yorgi Ardiano , Pamungkas Ilman Putra , Permana Indra
Published: April 2024

Bom Latih unguided merupakan persenjataan udara yang seringdigunakan untuk keperluan latihan dan proficiency. Desain dari bom harusmemenuhi standar aspek keamanan dan prestasi terbang yang baik dan akurat,sehingga misi bisa diselesaikan dengan baik. Salah satu aspek kemanan yang perludiidentifikasi dalam desain bom adalah lintasan bom ketika sesaat setelah dirilisdari pesawat atau lebih dikenal dengan fenomena Store Separation. Fenomenaini perlu dikaji dengan baik, sehingga bom dapat melintas dengan lintasan yangdiinginkan dan tidak berakibat fatal terhadap pesawat dan kru didalamnya. Analisisyang dilakukan adalah melakukan simulasi tentang separasi (store separation) padaBom Latih ketika dilepaskan dari Sayap Pesawat EMB-314 Super Tucano. Beberapafaktor yang mempengaruhi lintasan bom sesaat setelah dilepaskan dari pesawatantara lain adalah gaya dan momen aerodinamika bom serta efek interferensinyaterhadap sayap pesawat. Selain itu, karakteristik inersia bom dan ejector bom jugaberperan penting dalam menentukan lintasan bom. Dalam studi kali ini, gaya danmomen aerodinamika Bom serta efek interferensi dengan Sayap Pesawat diprediksidengan menggunakan Computational Fluid Dynamic (CFD) dengan analisis steady.Koefisien aerodinamika tersebut kemudian dijadikan input untuk model 6 Degree ofFreedom (6 DoF) Bom untuk melihat bagaimana lintasan terbang Bom sesaat setelahdilepaskan dari pesawat. Tiga kasus manuver pelepasan bom dianalisis dalam studikali ini, yaitu Level Bombing, Dive Bombing dan Toss Bombing secara single release.
6. Analisis Karakteristik Aerodinamika dari Berbagai Geometri Fin Bom 500 lbs dengan Metode Computational Fluid Dynamics (CFD)
Authors: Yudho Giri , Nasution Bariq , Yogaswara Y. H. , Jengkar Sapta , Handoko
Published: April 2024

Dalam perancangan bom udara dibutuhkan analisis dan aerodynamic database untuk mengetahui performa dan karakteristiknya secara dinamika terbang. Penelitian ini

bertujuan untuk mengetahui karakteristik aerodinamika pada komponen fin, serta mengetahui pengaruh perbedaan bentuk geometri fin terhadap karakteristik aerodinamika bom secara kolektif. Metode yang digunakan adalah analisis numerik dengan simulasi CFD untuk memprediksi karakteristik aerodinamika dan mengamati fenomena aliran yang terjadi. Model yang digunakan adalah bom sejenis MK 80 Series 500 lbs yang didesain dengan CAD berbasis data pengukuran dari 3D Scan. Simulasi secara numerik dilakukan untuk mengetahui karakteristik aerodinamika dari desain bom udara pada masing-masing konfigurasi fin bom yang dianalisis. Hasil yang diperoleh terdapat perbedaan nilai koefisien lift, drag, dan aerodynamic center. Geometri fin trapesium dan persegi panjang menunjukkan hasil yang relatif tidak jauh berbeda, sedangkan geometri fin segitiga menunjukkan deviasi CL dan CD yang relatif tinggi pada angle of attack yang besar dibandingkan dua model lainnya. Berdasarkan hasil simulasi, fin persegi panjang memiliki karakteristik aerodinamika yang lebih baik dibandingkan fin segitiga karena menyerupai karakteristik aerodinamika fin original yang berbentuk trapesium.
8. Pemodelan dan Simulasi Fragmentasi Bom Menggunakan Metode Smoothed Particle Hydrodynamics (SPH)
Authors: Handoko  , Muhammad Fachri , Jengkar Sapta
Published: April 2024

Unguided bomb merupakan amunisi udara yang sering digunakan untuk keperluan latihan dan pertempuran. Typical top level requirement dari desain bom tersebut antara lain target requirement dan safety requirement. Salah satu bagian penting dalam target requirement yang perlu dipertimbangkan dalam suatu desain bom live adalah kemampuan daya hancur. Kemampuan daya hancur bom live ditentukan oleh fragmentasi yang dihasilkan bom untuk menghancurkan sasaran, sehingga misi penghancuran dapat terlaksana dengan efektif dan mematikan. Untuk memperoleh fragmentasi yang mampu menghancurkan sasaran baik saat misi maupun latihan ditentukan oleh dua aspek yaitu daya ledak dari isian bom/main charge dan impak fragmentasi struktur bom itu sendiri. Untuk memprediksi fragmentasi yang diperoleh dari bom live, perlu dilakukan analisis fragmentasi dari struktur bom yang di desain. Simulasi fragmentasi dilakukan menggunakan finite element method untuk memperoleh kecepatan awal fragmentasi, bentuk fragmentasi dan sebarannya sebagai prediksi awal. Dalam studi kaliini, analisis dilakukan secara numerik pada bom MK-82 dimana struktur bodi bom/kulit dibuat menggunakan bahan steel, isian explosive menggunakan Trinitrotoluena (TNT) dan initial detonation dimulai dari bagian depan (nose) bom. Analisis dilakukan menggunakan Software ABAQUS dimana metode yang digunakan adalah Smoothed Particle Hydrodynamics (SPH) secara Explicit. Variasi dan bentuk element/mesh dilakukan untuk membandingkan dan memperoleh hasil yang mendekati dengan kondisi sebenarnya. Hasil simulasi menunjukan bahwa bentuk elemen tetrahedron berukuran 0,0085 menghasilkan bentuk dan sebaran fragmentasi yang merata sepanjang penampang struktur bodi/kulit bom MK-82 dan menghasilkan kecepatan fragmentasi berkisar 682-958 m/s.
9. Perancangan Multi Test Set Pas U-Star Pada Tactical Uav
Authors: Priandoko Gatut Agung , Wibowo Agus Suryo
Published: April 2024

Sathar 24 berupaya melaksanakan analisa, kajian teknis, uji coba dan evaluasi terhadap komponen Pilot Box Assy, ADT Fan dan Servo Actuator 28V W/Encoder PTTA Aerostar BP (PAS U-STAR) guna mencari proses pemecahan permasalahan yang ada. Dari rangkaian kegiatan tersebut didapatkan rumusan parameter teknis, wiring diagram dan data-data yang akan digunakan dalam pembuatan test set dimaksud. Sebagai tindak lanjut, maka dilaksanakanlah kegiatan rancang bangun Multi Test Set PAS U-STAR sebagai pembuktian peran serta dari keluarga besar Sathar 24 Depohar 20 dalam menghadapi tantangan masa depan. Multi Test Set telah dilaksanakan power supply test dan Indication test dan diperoleh hasil baik dari kedua test tersebut. Selain itu, dilaksanakan juga Line Replaceable Unit (LRU) yang mana dilaksanakan dengan cara remove and install komponen yang akan dites. Hasil dari tes tersebut menunjukkan bahwa Multi Test Set sudah dapat mengidentifikasi komponen yang serviceable dan Unserviceable.
2. Teknologi Kunci Wahana Peluncur Nano Satelit
Authors: Wibowo Heri Budi
Published: April 2024

Regional navigasi satelit sistem (RNSS) adalah suatu sistem navigasi yang daya jangkaunya bersifat regional. Pemanfaatannya semakin hari semakin banyak orang menggunakan bahkan berbagai bidang hampir semuanya membutuhkan informasi navigasi. Penelitian ini mencoba mengeksplorasi sistem navigasi pada negara India yang skala jangkakunnya regional. Metoda penelitian yang digunakan adalah metode penelitian studi literarur, literarur diperoleh dari berbagai referensi yang sesuai dengan kebutuhan penelitian. Hasil yang diperoleh, bahwa sejarah pembangunan RNSS India bukan dibuat dalam waktu yang singkat, namun diperlukan berbagai persiapan yang membutuhkan waktu tidak sebentar. Mulai dari kajian segmen IRNSS, baik segmen darat, segmen ruang angkasa dan segmen pengguna, dipersiapkan seara mendetil dan sebaik mungkin. Berikutnya sistem referensi juga menjadi perhatian, referensi yang menentukan tata koordinat untuk keperluan koreksi atau acuan dalam berbagai aplikasi RNSS. Berikutnya masalah konstelasi satelit, berdasar kebutuhan dan kondisi akan mempengaruhi berapa jumlah satelit yang diperlukan untuk dapat mencakup area se Indonesia. Oleh karena hal tersebut analisis studi ini menjadi suatu referensi dalam rangka membangun suatu sistem navigasi yang mandiri, terlebih lagi jika dikaitkan dengan kebutuhan pertahanan dan keamanan.
4. Konsep Hybrid Propultion System Pada Unmanned Aerial Vehicle Guna Meningkatkan Waktu Terbang Dalam Misi Pengintaian Udara
Authors: Triwahyu Hardi , Handoko
Published: April 2024

Operasi pengintaian yang dilaksanakan oleh TNI dan menggunakan Unmanned Aerial Vehicle (UAV) merupakan suatu strategi atau cara untuk mendapatkan data secara menyeluruh dengan waktu yang lebih panjang dan efisien serta tentunya dapat menghemat anggaran dibandingkan dengan menggunakan pesawat intai. Pengintaian dimaksud diaplikasikan pada misi intai udara untuk operasi darat, pengawasan illegal fishing serta patroli perbatasan laut dan darat. Untuk mendapatkan data sasaran sebanyak mungkin guna mencapai keberhasilan tugas pengintaian, salah satu hal penting adalah proses merancang bangun sistem propulsi yang lebih efisien untuk UAV agar dapat terbang lebih lama. Hal ini berarti meningkatkan efisiensi dan mengurangi jumlah pembakaran fuel. Hybrid propultion system adalah jawaban ideal untuk menjaga efisiensi penggunaan energi yang berasal dari konsumsi bahan bakar dan dapat meningkatkan endurance. Konfigurasi hybrid akan memadukan dua sistem yang berbeda menjadi satu sistem, menghasilkan tenaga untuk menjaga UAV tetap terbang pada ketinggian dan waktu yang dibutuhkan. Tulisan berikut akan menjelaskan konsep mengefisienkan power dari sistem propulsi pada UAV guna menambah waktu terbang secara signifikan.
5. Analisis Lingkungan Strategis Pulau Miangas, Pulau Terluar Indonesia Bagian Utara
Authors: Fahmi Ice , Soelistyo Tri , Maulani Muhammad , Natalia Dessy , Sasongko Nugroho Adi , Yoesgiantoro Donny
Published: April 2024

Bagi negara kepulauan seperti Indonesia, pulau-pulau di perbatasan memiliki peran yang sangat penting. Berdasarkan Konvensi Hukum Laut Internasional (United Nations Convention on the Lawpof the Sea) 1982 pasal 47 ayat 1, negara kepulauan berhak menarik garis pangkal kepulauan (archipelagic baseline) sebagai dasar pengukuran wilayah perairannya dari titik-titik terluar pulau-pulau terluarnya. Dengan kata lain, pulau-pulau kecil ini turut menentukan batas-batas kedaulatan NKRI. Apabila Pulau Miangas lepas dari NKRI, maka Bangsa Indonesia akan kehilangan wilayah laut yang luas berikut sumber daya yang terkandung di dalamnya. Pemerintah juga telah melihat ancaman berupa kekhawatiran Indonesia akan perubahan orientasi warga Miangas, dan peluang berupa destinasi baru untuk pariwisata Indonesia. Oleh sebab itu Pemerintah mengeluarkan kebijakan terkait pembangunan pulau terluar Indonesia sebagai beranda negara. Selain itu, Pemerintah Indonesia juga melakukan pengembangan di wilayah perbatasan utara tersebut untuk melindungi dan menjaga lingkungan strategis Indonesia baik dalam aspek militer, politik, ekonomi dan sosial demi memenuhi kepentingan nasional Indonesia
6. Bahan Bakar Hayati Sebagai Pengganti Bahan Bakar Fosil (Biofuel : Biodiesel, Bioethanol, BioAvtur, Green Diesel, Green Gasoline, Green Avtur)
Authors: Fahmi Ice , Soelistyo Tri , Maulani Muhammad , Sasongko Nugroho Adi , Yoesgiantoro Donny
Published: April 2024

Pada saat ini kehidupan manusia tidak lepas dari penggunaan energi minyak bumi, dimana hampir setiap lini kehidupan tidak lepas dari penggunaan minyak bumi. Baik untuk sarana transportasi baik itu transportasi darat, laut maupun udara, namun kita telah menyadari bahwa ketersediaan bahan bakar dari bahan fosil semakin menipis, sehingga diperlukan bahan alternatif pengganti bahan bakar fosil, karena konsumsi bahan bakar minyak terus meningkat. meningkat dari waktu ke waktu. ketersediaan pasokan minyak dari fosil ketersediaan sisanya terbatas, kekurangan minyak Indonesia adalah kemungkinan nyata. Akibatnya, Indonesia harus mengimpor minyak mentah dan minyak bumi untuk bahan baku kilang. Produk yang memenuhi kebutuhan energi di masyarakat. Di sisi lain, Indonesia memiliki potensi yang besar. Kemungkinan biomassa atau sumber daya terbarukan digunakan sebagai bahan bakar nabati untuk biodiesel dan bioetanol (etanol) dimana bahan baku produk bahan bakar tersebut tersedia dan dapat diperbaharui. Oleh karena itu, diversifikasi energi Untuk mengurangi minyak, biofuel perlu diperkenalkan sebagai alternatif konsumsi minyak, terutama di sektor transportasi. Akibatnya, dibutuhkan lahan untuk menanam kelapa sawit untuk pasokan bahan baku biodiesel dan sekitarnya. Kami menanam singkong dan menyediakan bahan baku bioetanol. Tujuannya adalah untuk menantang penggunaan biofuel sebagai pelopor bahan energi alternatif. Sehingga ke depan dimungkinkan penggunaan biofuel sebagai bahan bakar utama karena selain tingkat polusi CO2 yang minimal, perkebunan kelapa sawit dengan siklus peremajaan tanaman 30 tahun merupakan paru-paru dunia yang dapat menyerap CO2, sehingga dapat dipastikan bahwa penggunaan bahan bakar biofuel alternatif ini adalah bahan bakar yang tepat.
7. Pengaruh Kebijakan DMO Batubara Terhadap Ketahanan Energi Nasional dalam Mendukung Pertahanan dan Keamanan Negara
Authors: Fahmi Ice , Soelistyo Tri , Maulani Muhammad , Afandi Fajar Gunawan , Sasongko Nugroho Adi , Yoesgiantoro Donny
Published: April 2024

Indonesia saat ini masih mengandalkan batubara sebagai bahan bakar utama pembangkit listrik pada skala nasional. Hal tersebut terjadi karena Indonesia masih menggunakan Pembangkit Listrik Tenaga Uap (PLTU) sebagai pembangkit listrik utama. Dengan begitu peran batubara menjadi sangat penting untuk menjaga stabilitas pasokan listrik di Indonesia. Listrik merupakan aspek penting mengingat hampir seluruh kegiatan manusia saat ini membutuhkan sumber daya listrik. Kekurangan pasokan listrik dapat berakibat fatal seperti pemadaman listrik di beberapa wilayah sehingga menghambat kegiatan perdagangan maupun produktivitas perusahaan di wilayah tersebut. Kebijakan DMO berpengaruh pada tingkat ketahanan energi nasional. Kebijakan DMO batubara juga mendukung pertahanan dan keamanan nasional melalui terjaminnya pasokan listrik melalui pemenuhan kebutuhan pasokan batubara di pasar domestik. Oleh sebab itu kebijakan DMO batubara merupakan langkah strategis untuk mendukung ketahanan energi nasional dan pertahanan dan keamanan negara.
8. Analisis Life Cycle Assessment Baterai pada Kendaraan
Authors: Fahmi Ice , Soelistyo Tri , Maulani Muh , Afandi Fajar Gunawan , Sasongko Nugroho Adi , Yoesgiantoro Donny
Published: April 2024

Baterai isi ulang diperlukan untuk dekarbonisasi sistem energi, tetapi penilaian dampak lingkungan siklus hidup belum mencapai konsensus tentang dampak lingkungan dari produksi baterai ini. Meskipun demikian, penilaian siklus hidup (LCA) adalah alat yang ampuh untuk menginformasikan pengembangan kinerja baterai dengan beban lingkungan yang berkurang. Ulasan ini mengeksplorasi praktik umum dalam LCA baterai lithium-ion dan membuat rekomendasi tentang bagaimana studi di masa depan dapat lebih dapat ditafsirkan, representatif, dan berdampak. Pertama, LCA harus memfokuskan analisis penipisan sumber daya pada tren jangka panjang menuju ekstraksi dan pemrosesan bahan yang lebih intensif energi dan sumber daya daripada memperlakukan cadangan yang diketahui sebagai jumlah tetap yang habis. Kedua, studi masa depan harus mempertimbangkan operasi ekstraksi dan pemrosesan yang menyimpang dari praktik terbaik industri dan mungkin bertanggung jawab atas sebagian besar dampak sektoral, seperti penambangan kobalt rakyat. Ketiga, LCA harus mengeksplorasi setidaknya 2-3 skala fasilitas manufaktur baterai untuk menangkap dampak yang bergantung pada ukuran dan throughput seperti pengkondisian ruang kering dan pemulihan pelarut. Terakhir, LCA masa depan harus beralih dari baterai kg massa sebagai unit fungsional dan sebagai gantinya memanfaatkan kWh kapasitas penyimpanan dan kWh throughput energi selama masa pakai.