bluuebunny/crossref_metadata_2025 huggingface dataset:
ПРОГРАМНИЙ ЗАСІБ ВИМІРЮВАННЯ МЕТРИК ПРОДУКТИВНОСТІ РЕЛЯЦІЙНИХ СИСТЕМ КЕРУВАННЯ БАЗАМИ ДАНИХ
Authors: Яцишин В.В. , Пастух О.А. , Жаровський Р.О. , Шаблій Н.Р.
Published: June 2023

Сучасний розвиток ІТ галузі характеризується розробкою і впровадженням нових та дієвих інструментів, що орієнтовані на підвищення рівня автоматизації виконуваних задач і процесів життєвого циклу як елементарних програмних систем, так і складних комп’ютерних комплексів. До складу більшості комп’ютерних систем входять бази даних, а однією з ключових характеристик якості на сьогодні є продуктивність, тому актуальності набуває розробка програмного засобу вимірювання метрик атрибутів продуктивності реляційних систем керування базами даних. Такий засіб забезпечить можливість автоматизованого вимірювання показників продуктивності при експертному оцінюванні реляційних СКБД та знизить поріг входу і складність виконання операцій для експертів з оцінювання якості.

У роботі, на основі технології оцінювання якості програмних систем та моделі якості стандарту ISO/IEC 25010, запропоновано структуру концептуальної моделі оцінювання реляційних систем керування базами даних та реалізовано програмний засіб вимірювання метрик продуктивності реляційних СКБД. Засіб автоматизації процесу оцінювання продуктивності СКБД володіє такими функціями як: внесення та збереження вихідних даних (підключень, інформацію про сервери СКБД, атрибути, метрики, готовий до використання код чи його шаблони); налаштування тесту, збереження налаштувань, завантаження налаштувань; проведення перевірки сумісності налаштувань та обраної СКБД;встановлення з’єднання та проведення тестування;вимірювання необхідних показників, збереження результатів та їх візуалізація. На основі сформованих вимог до систем оцінювання продуктивності СКБД, базуючись на концептуальній моделі продуктивності СКБД та інформації про визначені атрибути, їх метрики і функції оцінювання, розроблено трьохрівневу архітектуру засобу автоматизації. Спроектована архітектура дозволила забезпечити реалізацію простого і зрозумілого засобу підтримки експертного оцінювання продуктивності СКБД.

Проведено експериментальні дослідження, які передбачали вимірювання метрик продуктивності для двох реляційних СКБД: Oracle 11g та MS SQL Server. Результати експерименту підтвердили доцільність використання розробленого програмного засобу, оскільки забезпечують зниження витрат часу і порогу входу для експертів при проведенні процедур оцінювання продуктивності СКБД.
ВПЛИВ РОЗМІРУ ЗЕРНА НА МЕХАНІЧНІ ВЛАСТИВОСТІ ІНТЕРМЕТАЛІЧНОГО Ti-Al СПЛАВУ
Authors: Середа Б.П. , Бєлоконь Ю.О. , Кругляк І.В. , Середа Д.Б. , Кругляк Д.О.
Published: June 2023

Під час синтезу інтерметалідних сплавів зерна матеріалу руйнуються і перетворюються на менші шляхом пластичної деформації та швидкого охолодження. Якщо збільшити рівень пластичної деформації під час високотемпературного синтезу сплаву під тиском, можна досягти ще кращих результатів. Наприклад, додавання ніобію до γ-TiAl сплавів (в кількості 7—8 % за вагою) і збільшення рівня пластичної деформації шляхом екструзії при 1100 oC дозволяє отримати кінцевий продукт з розміром зерна всього 10—12 мкм та дворівневою структурою з наноламельними колоніями з відстанню до 500 нм. Теоретичні розрахунки з моделі Холла-Петча показали, що сплав Ti-Al-Nb з такими наноструктурами може мати граничну міцність до 1800 МПа, що в 3 рази більше, ніж у сплаві Ti-Al.
Corporate Governance and Tax Avoidance: A Study on Indonesian Listed Companies (2016-2020)
Authors: Sholikhah Mar'atul 'Ainish , Nurdin Fajar
Published: June 2023

This research objective is to find out the effect of independent commissioners, institutional ownership, managerial ownership, and audit committees on tax avoidance of service companies listed on the IDX in 2016-2020. This quantitative study uses multiple linear regression analysis as a hypothesis test. This study used secondary data from the financial statements of service companies listed on the IDX in 2016-2020. There are 28 samples of service companies listed on the IDX with a research period of 2016-2020, which were selected using the purposive sampling method used in this research. The results showed that the independent board of commissioners, institutional ownership, managerial ownership, and the audit committee had a significant positive effect on tax avoidance with a coefficient of determination of 40.1%. Thus, independent commissioners, institutional ownership, managerial ownership, and audit committees have an important role in tax planning, namely tax avoidance.
Sustainable Development Goals through Productive Fisheries Waqf
Authors: Citaningati Putri Rizka , Kamaluddin Kamaluddin
Published: June 2023

Waqf is one of the financial instruments in Islamic economics besides Zakat. Currently, the management of waqf funds has intensified by the Government and Islamic financial institutions because of its enormous potential in Indonesia. One of them is the Productive Seafood Waqf program implemented by Global Waqf-ACT. However, studies on productive waqf, especially those that discuss the agricultural sector in improving the fishers' economy, are still minimal. Therefore, this qualitative explanatory research aims to formulate a productive seafood waqf scheme implemented by Global Waqf-ACT that could help the achievement of the Sustainable Development Goals (SDGs). The result shows that productive seafood waqf could provide more benefits, especially for the anglers in the agricultural sector. Another benefit that can be achieved is the productive seafood waqf managed by Global Waqf-ACT also supports several main points in the SDGs, such as no poverty and hunger, providing good health, life below water, and partnership for the goals.
Role of Islamic Finance in Supporting Economic Recovery in Nigeria Post-Covid-19 Pandemic
Authors: Abdulkareem Ibraheem Alani , AbdulGaniyy AbdulFattah , Mahmud Mohd Sadad
Published: June 2023

Since the deadly infection pandemic episode toward the end of 2019, more than 200 countries have been impacted. One of the most significant impacts of the pandemic that is undeniable is the increase in the intensity of poverty around the world. It is a health sector crisis, and the virus is also causing an economic meltdown. Various nations fall into recession, and more people live beneath the poverty level. The pandemic is causing both health and economic crises. This study examines the potential of Islamic finance in supporting economic recovery in the post-Covid-19 pandemic. The method reviews previous studies, including journal articles, research papers, policy documents, and reports in related fields to support this study. Based on past studies, the study document that Islamic finance via Mudarabah, Sukuk, Musharakah, Qard al-Hasan, Sadaqat, waqf, and Islamic Microfinance has essential to support economic recovery in a post-Covid-19 pandemic in society. In particular, the study found that Islamic finance is positively associated with a reduction in the impact of the pandemic on the people and the whole world economy. The study has added to the body of knowledge by looking at the role of Islamic finance in terms of the effect of the Covid-19 pandemic on the economy and society. The study has implications for the financial institutions, policymakers, and government in terms of adopting Islamic finance products and principles to address the effect of the Covid-19 pandemic crisis on the economy, thereby improving the social well-being of the people and improving the global economy.
Understanding Riba, Product Knowledge, and Attitudes: Influences on Intentions to Become Sharia Bank Customers
Authors: Yuliafitri Indri , Lathifah Ressy Siti
Published: June 2023

This study aims to examine the influence and understanding of the community about Islamic banks on the decision to become a customer of Islamic banks. The data collection technique in this research is using a questionnaire. The data collection technique used in this study. In comparison, the data analysis method uses quantitative description. The study results show that individual understanding of usury and product knowledge does not affect the intensity of being a Sharia bank customer. Attitudes towards Islamic banks affect the intensity of being a customer of Islamic banks. Meanwhile, understanding usury, product knowledge, and attitudes towards Islamic banks affect the intensity of becoming a customer.
Natural radioactivity of sedimentary rocks in the northeastern part of the Moravo-Silesian Palaeozoic Basin
Authors: Zimák Jiří
Published: June 2023

The paper provides detailed information on the natural radioactivity of sedimentary rocks in the northeastern part of the Moravo-Silesian Palaeozoic Basin in the Bohemian Massif. The studied area is dominated by the Lower Carboniferous flysch sediments belonging to the Horní Benešov, Moravice, and Hradec-Kyjovice formations (from botttom to the top). These three flysch formations consist of siliciclastic sediments, mainly graywackes, siltstones, silty shales, and clay shales, while conglomerates are less abundant. The overlying sediments of the Ostrava Formation (Namurian) occur on the eastern margin of the studied area. The Ostrava Formation has a character of a paralic coal-bearing molasse with alternating beds of sandstone (or arkose), siltstone and claystone. The sediments often have an elevated content of organic matter, concentrating into coal seams. The rocks of the Ponikev Formation (Devonian) occur in a narrow belt in the western part of the studied area. The Ponikev Formation consists mainly of silicites. Potassium, uranium and thorium contents were measured using a laboratory gamma-ray spectrometer in 1612 rock samples from 672 localities on five map sheets (1 : 50 000 scale). The calculated values of mass activity of 226Ra equivalent (am) demonstrate that the natural radioactivity of sedimentary rocks of all three flysch formations is lower or similar to that of the average Earth crust (about 180 Bq . kg–1). The radioactivity of flysch sediments increases with decreasing grain size from psephites (average am is 122 Bq . kg–1) to psammites (144 Bq . kg–1) and to aleurites + pelites (188 Bq . kg–1). Siltstones and claystones with a low organic matter content (226 Bq . kg–1), coaly siltstones and coaly claystones (240 Bq . kg–1), coaly sandstones and arkose sandstones (232 Bq . kg–1), and coal (202 Bq . kg–1) of the Ostrava Formation show slightly higher average am values. The relatively high radioactivity of these sediments is related to the elevated content of uranium (7.9 ppm on average).
Chingiz Aitmatov's novel “The Place of The Skull” in the assessment of Rymgali Nurgali
Authors:   Eurasian national University named after L. N. Gumilev, Astana, Kazakhstan, Takhan S.Sh. , Sapash Sh.B.
Published: June 2023

В филологической науке существует традиция обращения к научному наследию ученых, внесших значительный вклад в развитие и процветание науки. Истолкование взглядов и научных интересов ученого, анализ и описание вклада и роли его научного творчества в развитие литературоведения способствует осмыслению истории науки, ее аналитическому описанию на современном этапе. Целью данной статьи является изучение особенностей научного творчества академика, доктора филологических наук, писателя и ученого-литературоведа Рымгали Нургали. Представлена интерпретация академиком Рымгали Нургали романа Чингиза Айтматова «Плаха». В своем исследовании романа Чингиза Айтматова «Плаха» Рымгали Нургали размышляет над смыслом заголовка романа, который имеет глубокий философский смысл, и предваряяет образную систему произведения. Ученый пишет о такой эстетической категории, которая отражает и обобщает противоречивость человеческой жизни, как драматизм. Рымгали Нургали считает, что роману присущ трагический пафос, так как роман отличается полнотой и глубиной передачи драматического конфликта. Жанр данного произведения ученый определяет как психологический роман. Любой писатель, прежде всего, является представителем определенного народа, последователем сложившейся системы нравственных, моральных национальных установок. Поэтому при анализе художественных произведений Рымгали Нургали считает важными национальные художественные традиции, а также их учет при интерпретации произведений. Кроме того, ученый объясняет использование мифологического сюжета о Понтии Пилате в романе «Плаха».
CONDITIONS FOR IMPROVING THE PROFESSIONAL COMPETENCE OF A TEACHER OF ENERGY DISCIPLINES BASED ON MODERN INFORMATION TECHNOLOGIES
Authors:   Бердянський державний педагогічний університет, ONYSHCHENKO S.
Published: June 2023

The article examines the existing experience of using modern information technologies in the educational process, considers the possibilities of their application to increase the professional competence of the teacher of energy disciplines in the conditions of distance education. The method of organizing the professional training of teachers for the effective use of modern information technologies in pedagogical activities is proposed. The range of issues related to the substantiation of requirements for the use of modern information technologies in the educational process, which has a powerful impact on the results and quality of work of the higher education institution, is outlined. An overview of the existing experience of using modern information technologies to improve the professional competence of the teacher of energy disciplines is considered. The professionalism of a modern teacher of energy disciplines in the conditions of distance education consists not only in the knowledge of his subject and the methodology of its teaching, but also in the need to possess modern information technologies - competence and the desire to possess information culture. Attention is paid to the issue of formation and development of the informational and pedagogical competence of the teacher of energy disciplines. The informational and pedagogical competence of a teacher of energy disciplines is defined as his readiness and ability to independently use MIT in pedagogical activities to solve a wide range of educational tasks and to design ways of improving qualifications in this field. In the new conditions, the professional career of any teacher depends on how well he is able to find and receive, perceive and use new information in the educational process in the conditions of distance education in a timely manner. And for this, a modern teacher must develop the ability to manage the educational process and self-evaluate the information received. It is also considered how the use of modern information technologies facilitates the activities of the teacher of energy disciplines in conducting classes. Possibilities of using modern information technologies at all stages of conducting modern classes in the conditions of distance education. Key words: professional competence, informational and pedagogical competence, teacher of energy disciplines, modern information technologies, educational process.
CONCEPT OF CUSTOMER SERVICE IN THE LOGISTICS INDUSTRY: ADVANTAGES, PROBLEMS AND SOLUTIONS
Authors: Semenda Olha
Published: June 2023

An important concept in the operation of logistics transport systems is logistics customer service. This concept is based on the overall scope of the supply chain. Traditionally, it has been difficult for supply chain components to define their role in the overall customer service provided to end users. However, there is a growing trend towards greater awareness of their role not only in relation to trading partners but also to the end customer.
The logistics industry is responsible for the transportation and storage of goods. Improving customer service in the logistics industry can have many benefits. Better customer service can lead to higher levels of satisfaction, repeat business and recommendations. It can also lead to increased efficiency and lower costs. A well-run logistics operation depends on satisfied customers. When customers are satisfied with the service, they are more likely to use the same company again and recommend it to others. Improving customer service can also lead to increased efficiency and lower costs. By optimizing service operations, logistics companies can increase profitability by providing excellent service.
Logistics customer service is an important part of the logistics industry. Customers entrust their shipments to a logistics service and expect to receive excellent service. Quality customer service is seen as a way to create loyal customers and keep them coming back, so this issue is relevant for logistics business.
The article defines the process of customer service in logistics, describes the stages of logistics service. The importance of improving customer service in the field of logistics is analyzed and tips for its improvement are given. Problems in logistics customer service are identified and ways to determine customer service satisfaction are proposed. The benefits of improving customer service and ways to create a positive customer experience are described.
Customer service is extremely important in the world of logistics because of the highly synchronized and detailed planning and execution that is required to operate on a global scale. Improving customer service in the logistics industry can have many benefits. There are many reasons to focus on customer service, from increasing customer satisfaction to reducing costs. By following the developed tips, it is possible to improve the quality of service in the logistics business and ensure the company's competitiveness.
La Liga Comunista 23 de Septiembre ante la reforma política de 1977, la liberación de presos políticos, y la búsqueda de víctimas de desaparición forzada
Authors:   El Colegio de Morelos, Galaviz Miranda Cuitlahuac
Published: June 2023

The Communist League “23 de Septiembre” – known as LC23S or la Liga – was one of the guerrilla insurrection organizations in Mexico in the 70s. Already in 1977, while la Liga was celebrating four years of existence, the federal government headed by José López Portillo announced a political reform that allowed the recognition of left-wing political parties. In addition, during this time, relatives of state counterinsurgency’s political prisoners and victims of forced disappearance sought the release and search of their loved ones. The article analyzes the positions on these efforts and the 1977 political reform expressed by la Liga in Madera, the organization’s newspaper. I argue that la Liga disseminated a negative vision of these processes in order to continue justifying its call to arms, because organized political violence was offered as the only legitimate and viable method to carry out leftist changes in Mexico at the time.
Development Of The Labour Market In The Republic Of Belarus: Current Trends And Priorities
Authors: Vankevich Alena
Published: June 2023

The article focuses on the development of the labor market in the Republic of Belarus in the context of the digitalization of the economy. The authors have proved that in the context of digitalization, the labor market is shifting towards supply-side restrictions (demographic risks, increased labor force mobility, increased mismatch between the skills and qualifications of the employed population and the requirements of employers). The trends in the development of the labor market and its segments in the Republic of Belarus are identified, the influence of digitalization of the economy on the labor market is specified, and an analysis of platform employment is carried out. The elements, types and features of platform employment are highlighted. Taking into account the identified trends, the need for adjusting the benchmarks of the employment policy in Belarus is substantiated.
Perancangan Alat Ukur Portable Datalogger Pembangkit Listrik Tenaga Surya
Authors: A Noor Nirwan , Sultan Ahmad Rizal , Thaha Sarma , Riyadi Kazman , Lukman Musfirah Putri
Published: June 2023

Information about the output power of solar panels and the intensity of solar radiation is needed in the PLTS system to determine the characteristics of the potential power generated by the panels and estimate the amount of load attached. The purpose of this study was to design and manufacture a portable parameter measuring instrument and datalogger module on a microcontroller-based solar panel. Arduino Uno and ThingSpeak WebServer where with this measuring instrument solar panel parameters such as input parameters in the form of solar radiation, ambient (environment) temperature and output parameters in the form of voltage, current, latitude panel position will be measured, stored and displayed in graphical form in realtime. The system being built consists of three main parts: namely the sensor as input which will measure solar radiation data, temperature or temperature, current, voltage, latitude and longitude position of the Arduino Uno solar panel module which will acquire measurement data from sensors and the Labview application which will store and display data in realtime. The results of this study indicate that the measured current error is 1.68% and the lux error is 1.95%.
Power Flow Analysis in N-1 Contingency Conditions Due to the Entry of Renewable Power Plants in the Sulselrabar System
Authors: Djalal Muhammad Ruswandi , Saini Makmur , Yunus A.M Shiddiq
Published: June 2023

Contingency analysis on a 150 kV network aims to see the network's reliability against interference. Contingency is a scheme for releasing one element of the generating unit or transmission line (N-1), which will affect the performance and reliability of the electric power system. Power flow analysis in an electric power system is an analysis that reveals the performance of an electric power system and the flow for certain conditions when the system is working. The analysis was carried out using the ETAP 16.00 software. The method used was the newton raphson to calculate the load flow in the N-1 contingency condition. From the results of the study, it can be seen that the power flow occurs in each channel of the 150 kV system in the South Sulawesi system. When conducting a contingency analysis of N-1 by removing the load on the middle lane of South Sulawesi, namely Maros and Sidrap, a voltage change occurs, increasing buses experiencing critical and marginal voltage conditions. This happens because of the sudden release of essential loads, so over or under voltage appears on the bus.
Brute-force Detection Using Ensemble Classification
Authors: Kharismadhany Ekky , Ruswiansari Maretha , Harsono Tri
Published: June 2023

Traditional brute-force is a dictionary-based attack that tries to unlock an authentication process in service. This type of brute force can be applied in web and SSH services, and brute-force XSS injects JavaScript code. In this paper, we explore four types of ensemble classifiers using CIC-CSE-IDS 2018 to determine which yields the highest accuracy, recall, precision, and F1 in detecting three types of brute force. The first step of the research is to normalise the dataset with the tanH operator. The second step is to train the single classifier to determine three types of single classifiers combined as ensemble classifiers. The last step is predicting and comparing the results of four ensemble classifiers. The stacking algorithm achieves the best test result that reaches 94.87%, 99.94%, 98.82%, and 99.37% for accuracy, precision, recall, and F1, respectively.
An Overview of Commonly Used Steel Beam-Column Connection in Indonesia for Low-Rise Building
Authors: Yuana Prima Sukma , Moestopo Muslinang , Kusumastuti Dyah , Pratiwi Naomi
Published: June 2023

The Indonesian seismic provision for steel structures was initiated in 2002. The use of steel has also been increasing as a choice of structural material since then. However, there are still many weaknesses in the seismic design of steel structures that have been carried out so far. A lot of beam-column connections in steel buildings in Indonesia use a haunch in a moment-resisting connection system. Haunched systems are not described in AISC 358 as permitted connections for earthquake-resistant buildings. Recently, Europe publishes European Prequalified Steel Joints (EqualJoints). There are four types of connections discussed, and one of them is the haunched type connections. The haunched connection meets the seismic requirements to be suitable for use as an earthquake-resistant connection in Europe. This can be used as a reference if we are going to design a haunched connection in Indonesia. However, special attention should be paid to the details. The bolt configuration, the thickness of the end plates, and the shape of the haunch are not like those commonly used in Indonesia, there must be improvements to be adjusted in EqualJoints. So that the performance of the connection against earthquakes becomes more guaranteed.
Experimental Study on the effect of Cooling Media on Impact Strength in the Heat Treatment Process of Medium Carbon Steel S45C
Authors: Risal Syah , Mahadir Mahadir , Suyuti Muhammad Arsyad , Nur Rusdi
Published: June 2023

Steel possesses mechanical properties that can enhance the hardness and microstructure of its surface, and heat treatment is one way to achieve these properties. This study aimed to investigate the impact of different cooling media on the heat treatment process and the resulting impact strength of S45C medium carbon steel. The steel specimens were heated at various temperatures (800oC, 850oC, and 900oC) in a furnace and then cooled using three different media: water, oil, and air. The study concluded that for all three temperatures, the specimens cooled with oil had the highest impact value. Furthermore, oil and air immersion resulted in ductile fractures, while water immersion caused brittle fractures.
Characteristics of AC-WC Asphalt Concrete Mixtures with Polystyrene Addition
Authors: Fahmi Rizky Hadijah , Erdiansa Andi , Nursamiah Nursamiah , Fattah Abdul
Published: June 2023

The top layer of pavement that functions as a wear layer is called AC-WC/ Laston. Improving the quality of flexible pavement continues to be developed in order to create transportation support facilities that are safe, strong and durable, but still economical. The use of additives is one way out that can be done in order to get a high quality product. The purpose of this research is to identify the optimum asphalt content to be used in the manufacture of polystyrene asphalt mixtures and to determine the characteristics of asphalt mixtures using polystyrene additives. The method used was to add polystyrene in the form of styrofoam which had previously been dissolved using gasoline into hot asphalt with a percentage of polystyrene mixture of 3.0%, 3.5%, 4.0%, 4.5% and 5.0% of the optimum asphalt content used. Based on the results of testing specimens with additional polystyrene, VIM and VMA values increased at levels of 3.0% to levels of 4.5% exceeding the upper limit of VIM specifications, but still within specifications. The stability value increased along with the increase of polystyrene from 3.0% to 5.0%, where this value meets the specifications. The flow value increases from 3.0% to 3.45% levels exceeding the upper limit of the specification then decreases after 3.45% levels to 5.0% levels where the flow value meets specifications. The conclusion that can be drawn is that the addition of polystyrene mixture in AC-WC can increase the hardness level of the Laston mixture.
Studi Sistem Plambing Air Bersih dan Air Kotor pada Gedung Sekolah Dasar Telkom Makassar
Authors: Badaruddin Sugiarto , Syafiqa Naila , Aqiqah Nayla Tri
Published: June 2023

Penelitian ini membahas tentang sistem plumbing air bersih dan air kotor pada Gedung Sekolah Dasar Telkom Makassar. Untuk air kotor, penentuan dimensi pipa air kotorserta pipa air buangan dilakukan berdasarkan nilai unit alat plumbing yang dilayani,dengan menggunakan tabel UBAP buangan secara kumulatif, lalu menentukan ukuran diameter pipa air kotor dan air buangan. Air kotor yang berasal dari WC dan air buangan yang berasal dari lavatory, semuanya dialirkan ke sumur resapan dan septictank dengan menggunakan pipa PVC diameter 3". Kemiringan pipa untuk pipamendatar, ukuran pipa yang digunakan yaitu pipa PVC diameter 3” atau 75 mm. Untuk air bersih, sistem pemipaan distribusi air bersih direncanakan dengan memakai Sistem tangki atap dari top reservoir ke toilet-toilet lantai 1 sampai dengan lantai 3. Berdasarkan data penghuni, jumlah murid, guru, staff, dan pengunjung sebanyak 642orang yaitu sebesar 52 m/hari. Adapun alat plumbing yang ada pada Gedung Sekolah Dasar Telkom Makassar terdiri dari 12 bak cuci tangan, 18 kloset, 9 peturasan. Oleh karena itu, laju aliran air adalah sebesar 0,008 m3/menit. Sedangkan volume bak air bawah (ground water tank) yaitu sebesar 1,97 m3 , dan volume efektif bak air atas (roof tank) sebesar 6,76 m3 . Untuk ukuran diameter pipa yang digunakan pada pipa utama sebesar 65 mm, pipa header pembagi H1 sebesar 50 mm, pipa shaft 2 sebesar 40 mm, dan pipa shaft 3 sebesar 40 mm. Dari hasil penelitian ini diharapkan dapat memberikan masukan yang bermanfaat bagi pengelola Gedung Sekolah Dasar Telkom Makassardalam mengoptimalkan sistem plumbing air bersih dan air kotor untuk mendukung kenyamanan dan kesehatan lingkungan di lingkungan sekolah.
Penerapan Penggunaan Alat Pelindung Diri Pada Pekerjaan Survey Lokasi
Authors: Baco Dewi Astuti , Irmayani Irmayani , Triwati Ika
Published: June 2023

Pekerjaan konstruksi adalah pekerjaan yang selalu dibutuhkan mengikuti perkembangan zaman dan akan selalu ada. Survey lokasi merupakan pekerjaan tahap awal yang dikerjakan saat melakukan pekerjaan konstruksi. Setiap pekerjaan konstruksi memiliki potensi kecelakaan kerja yang tidak dapat dihindarkan, namum dapat dicegah dengan menerapkan penggunaan Alat Pelindung Diri sesuai dengan kebutuhan dan fungsi di tempat kerja tersebut. Tidak terkecuali pada pekerjaan Survey Lokasi yang memiliki berbagai medan lokasi, baik pada potensi kecelakaan kondisi sering, sedang, parah maupun ekstrim. Potensi kecelakaan kerja tersebut terlebih dahulu dapat diidentifikasi dengan menerapkan matriks penilaian resiko dan pengendalian resiko K3. Setelah melakukan observasi lapangan maka dapat ditentukan dan diterapkan Alat Pelindung Diri yang digunakan di lokasi pekerjaan.
Analisis Biaya Kemacetan Akibat Pengaruh Hambatan Samping (Studi Kasus: Ruas Jalan Letjen Hertasning Kota Makassar)
Authors: Zakaria Aisyah , Razaq Bustamin Abdul , Reza Ahmad , Yusril Andi Muhammad
Published: June 2023

Padatnya aktivitas lalu lintas menyebabkan penumpukan kendaraan dititik tertentu yang mengakibatkan kemacetan, khususnya pada Ruas Jalan Letjen Hertasning Kota Makassar yang merupakan daerah komersial. Kemacetan lalu lintas membuat waktu yang dihabiskan pengguna jalan menjadi lebih lama, sehingga biaya yang dikeluarkan pengguna jalan menjadi lebih besar. Penelitian ini dilakukan dengan tujuan untuk mengetahui tingkat hambatan samping, mengetahui pengaruh hambatan samping terhadap tingkat pelayanan jalan, untuk memperoleh besaran biaya kemacetan yang diakibatkan adanya hambatan samping, untuk memperoleh solusi peningkatan pelayanan jalan. Pengolahan data menggunakan metode Manual Kapasitas Jalan Indonesia (MKJI) 1997 untuk analisis kinerja ruas jalan, metode PCI (Pacific Consultant International) 1979 untuk Biaya Operasional Kendaraan (BOK), serta simulasi penanganan kemacetan menggunakan software PTV Vissim. Berdasarkan hasil penelitian ini diketahui tingkat hambatan samping berada antara sedang dan tinggi dengan tingkat pelayanan ruas jalan rata-rata berkisar antara C dan D. Rata-rata biaya kemacetan untuk jenis kendaraan ringan yaitu sebesar Rp. 4.255.962,03 perhari dan Rp. 1.553.426.142,00 pertahun, sedangkan kendaraan berat sebesar Rp.127.921,46 perhari dan Rp. 46.691.334,00 pertahun. Adapun rekomendasi yang dihasilkan dari penelitian ini yaitu melakukan pelebaran badan jalan menggunakan lahan median jalan sehingga terjadi perubahan tingkat pelayanan jalan menjadi B dan C.
Prototipe Sistem Gate Otomatis pada Bendungan PLTA
Authors: Abadi Sukma , Klistafani Yiyin , Nurlatifa Sitti , Christanto Jeri
Published: June 2023

This study aims to make a prototype mechanism for opening and closing the gate on a hydropower dam using the Arduino Uno microcontroller. The research was conducted by making two gates (gate-1 and gate-2) which will open or close based on the water level of the dam. Gate-1 and gate-2 will close if the water level of the dam does not exceed the limit for immediate reduction. The test was carried out with variations in the conditions of water entering the dam, namely calm water conditions, heavy water conditions, and low water conditions. From the tests carried out, it was found that gate-1 always opens when the water level reaches 8 cm or more, while gate-2 opens when the water level starts to reach 11 cm. The length of time gate-1 and gate-2 open according to the water level of the dam.
Assembly and Disassembly Kompresor AC Alat Berat Tipe Swash Plate
Authors: Pitriadi Peri
Published: June 2023

Pekerjaan assembly dan disassembly kompresor Air Conditioning (AC) tipe Swash Plate melibatkan pembongkaran dan perakitan bagian-bagian komponen kompresor AC. Kompresor merupakan komponen penting dalam sistem AC yang berfungsi untuk sirkulasi refrigeran dalam sistem AC dan meningkatkan temperatur dan tekanan gas refrigeran dari evaporator ke kondensor. Penelitian assembly kompresor AC bertujuan memahami proses dan urutan perakitan kompresor AC, termasuk identifikasi dan pemahaman bagian-bagian kompresor, pengaturan dan penyesuaian komponen, serta metode dan teknik perakitan yang efisien. Tujuan utamanya adalah memastikan kompresor AC dirakit dengan benar dan berfungsi dengan baik. Metode penelitian yang digunakan adalah eksperimen. Metode eksperimen memungkinkan peneliti melakukan assembly dan disassembly kompresor AC dalam lingkungan penelitian yang terkontrol. Peneliti dapat mempraktikkan langkah-langkah perakitan dan pembongkaran menggunakan kompresor AC asli atau model yang serupa. Hasil penelitian adalah alat peraga dan langkah -langkah Assembly and disassembly, kompresor Swash Plate AC . Pada Visual Inspection ada komponen yang telah berkarat tetapi secara keseluruhan dalam kondisi baik. Untuk pengukuran komponen dimensi masih dalam spesifikasi yang di tentukan. Pada pengujian magnetic clutch kompresor masih berfungsi dengan baik karena apabila dialiri arus listrik dari battery, magnetic clutch menekan dengan baik. Berdasarkan hasil pengaplikasian yang dilakukan pada mahasiswa kelas 2 program studi perawatan alat berat dapat dilihat bahwa dapat meningkatkan keterampiran teori dan praktik mengenai assembly dan disassembly kompresor AC. Untuk pengambilan data terhadap teori rata-rata peningkatan yang terjadi pada mahasiswa sebesar 93% dan untuk praktik meningkat sebesar 53% terhadap waktu pengerjaan serta pemahaman mahasiswa dalam tersedianya media praktik assembly dan disassembly kompresor AC tipe swash plate .
Rancang Bangun Simulator Konveyor Pemilah Barang Berdasar Jenis Material Bahan Untuk Praktek Kontrol Industri berbasis Programmable Logic Controller (PLC)
Authors: Rijal Muhammad Chaerur
Published: June 2023

Penelitian ini dimaksudkan untuk merancang suatu modul praktek yang dapat mensimulasikan proses pemilahan kotak dengan bahan material berbeda dalam hal ini bahan besi atau bahan plastic yang mana proses pemilahannya ini dilakukan di sebuah sistem konveyor atau sabuk berjalan (conveyor belt). Modul praktek yang dirancang ini merupakan modul simulator jenis software dimana luaran yang dihasilkan diharapkan dapat membantu dalam proses pembelajaran praktek PLC (Programmable Logic Controller) di kampus vokasi. Proses pembuatan modul praktek ini dimulai dengan pengumpulan data, desain antarmuka, pemilihan input-output digital, desain tampilan HMI, pembuatan kode program simulator dan pembuatan program kendali berbasis PLC. Luaran penelitian yang dihasilkan berupa modul praktek simulator konveyor pemilah barang yang dikendalikan dengan PLC telah diuji coba secara fungsional dan menyeluruh dan diperoleh hasil yang sangat baik dan layak untuk dipergunakan sebagai alternatif pengganti trainer berbasis hardware
Rancang Bangun Penjejak Matahari Untuk Optimasi Daya Panel Surya
Authors: Marhatang Marhatang , Klistafani Yiyin , Firdaus Fitra , Yani Ahmad
Published: June 2023

The limitation in energy provision has become quite a crucial issue. The oil reserves in Indonesia continue to decline, and a similar situation is occurring with coal reserves. Thus, a conventional and renewable energy source is needed that does not harm the environment, for example, solar energy. This research aims to harness solar energy that can still be converted into electrical energy, and it also aims to improve the power output of solar panels for better optimization. The research starts by planning the motor, battery capacity, and solar panel capacity. Field testing is conducted at Merdeka Field, Ujung Pandang State Polytechnic, and data is collected under two conditions: with the use of a sun tracker and without a sun tracker. The power output obtained from each solar panel is then calculated. Based on the research results, the testing using a sun tracker yielded a power output of 17,857 Watts with a horizontal position of 47Â° Northeast and a vertical position of 15Â° at 11:30 AM WITA (Central Indonesia Time). Meanwhile, during the testing without a sun tracker, it resulted in a power output of 16.2 Watts with a horizontal position of 0Â° North and a vertical position of 5Â° at 1:00 PM WITA, indicating an average increase of 43.03%.
Flow Sensor Berbasis IoT
Authors: Nas Mardhiyah , Zubair Achmad
Published: June 2023

Sistem manajemen air merupakan bagian penting dari manajemen kota. Pengelolaan air melibatkan penyediaan air sesuai dengan kebutuhan nyata dan tanpa membuang-buang air. Oleh karena itu, sangat penting untuk mengukur laju dan volume aliran air.Â Sistem monitoring distribusi air (flow sensor) konvensional menuju ke pelanggan dengan mencatat penggunaan melalui metering yang ada di sisi pelanggan secara manual. Sistem pengukuran debet air (metering) secara konvensional perlu menyediakan tenaga pencatat meter ke tiap pelanggan. Pencatatan secara manual ini sering dikeluhkan dari sisi akurasi akibat kehadiran petugas yang tidak konsisten. Penelitian ini mengusulkan sistem berbasis web dengan alat meter berbasisÂ Internet of ThingsÂ (IoT). Alat meter ini menggunakan modul ESP8266 yang akan mencatat penggunaan air secara otomatis tanpa diperlukan petugas pencatat meter. Selanjutnya dari modul ESP8266 ini akan mengirimkan sinyal hasil pencatatan melalui transmisi data menujuÂ cloud serverÂ (Blynk IoT). Metode ini diharapkan menciptakan layanan yang lebih baikÂ Â Hasil uji akurasi alat ini menunjukkan memiliki sedikit perbedaan errorÂ 5% pada hasil uji dengan satuan mL, sehingga dapat disimpulkan bahwa sistem ini mampu memberikan alternatif pencatatan meter secara tepat.
Prediction Model of Prolonged and Obstructed Labor in East Nusa Tenggara: A Multivariate Adaptive Regression Splines Analysis
Authors: Rogaleli Yuanita Clara Luhi , Awang Mariana Ngundju
Published: June 2023

Prolonged and obstructed labor are the type of abnormal labor that may lead to maternal and fetal mortality. This study established the model for predicting prolonged and obstructed labor in East Nusa Tenggara. A health facilities-based case-control study was conducted in November 2017 among 570 women who gave birth at public health facilities in East Nusa Tenggara. Data were obtained by reviewing antenatal records, the mother's card, and partographs. In bivariate analysis, all variables with a p-value less than 0.25 determined by chi-square for categorical and independent t-test for numerical variables were included in multivariate analysis. Multivariate Adaptive Regression Splines (MARS) analysis was used to establish the final prediction model. The present study found that women <22, >26, and >34, with Hb levels of <12.5 gr%, and had nulliparity or multiparity (4 times) were reported as a higher risk of prolonged and obstructed labor. Meanwhile women with a fundal height of <34 cm, a height of >156 cm and >149 cm, a history of normal labor, presentation of the fetus behind the head, gestational weight gain of <12.3 kg, and pre-pregnancy BMI of <28.9 kg/m2 were identified as factors decreasing the risk of prolonged and obstructed labor. In conclusion, significant predictors of the outcome were maternal characteristics (age, parity, height, and history of labor method), maternal nutrition status (BMI pre-pregnancy, gestational weight gain, and hemoglobin levels), and fetal status (fundal height and fetal presentation).
PERILAKU IBU HAMIL KEK DAN ANEMIA DALAM KEGIATAN SAN PIISAN (SAYANGI DAMPINGI IBU DAN ANAK KOTA SEMARANG)
Authors: Mei Halimah Wu Lan , Prabamurti Priyadi Nugraha , Kusumawati Aditya
Published: June 2023

KEK (kekurangan energi kronik) dan anemia merupakan salah satu penyebab kematian pada ibu hamil. Ketidaktahuan mengenai dampak KEK anemia pada ibu hamil mengakibatkan minimnya kepedulian pada kehamilannya. Program SAN PIISAN (Sayangi Dampingi Ibu Anak Kota Semarang) merupakan salah satu inovasi dari DKK Semarang dalam menurunkan AKI. Penelitian ini bertujuan untuk melakukan evaluasi terhadap aspek predisposisi, pemungkin, dan penguat dalam pelaksanaan program SAN PIISAN untuk menurunkan AKI di Puskesmas Krobokan dan Bangetayu Kota Semarang. Metode penelitian ini adalah kualitatif-deskriptif, dengan melakukan pengamatan di lapangan dan wawancara mendalam kepada 10 informan utama dan 4 informan triangulasi yang dipilih menggunakan teknik purposive sampling. Hasil penelitian menunjukan bahwa hampir seluruh ibu hamil tidak mengetahui mengenai program SAN PIISAN, belum adanya media informasi yang mendukung mengenai KEK anemia dan program SAN PIISAN, dan kurangnya partisipasi ibu hamil dalam kegiatan SAN PIISAN. Temuan tersebut menunjukan masih terdapat hal-hal yang belum optimal baik dalam berbagai aspek pada pelaksanaan program SAN PIISAN di Puskesmas Krobokan dan Bangetayu Kota Semarang.
DL-PCN: Differential learning and parallel convolutional network for action recognition
Authors: Zeng Qinyang , Dang Ronghao , Fang Qin , Liu Chengju , Chen Qijun
Published: June 2023

Graph Convolution Network (GCN) algorithms have greatly improved the accuracy of skeleton-based human action recognition. GCN can utilize the spatial information between skeletal joints in subsequent frames better than other deep learning algorithms, which is beneficial for achieving high accuracy. However, the traditional GCN algorithms consume lots of computation for the stack of multiple primary GCN layers. Aiming at solving the problem, we introduce a lightweight network, a Differential Learning and Parallel Convolutional Networks (DL-PCN), whose key modules are Differential Learning (DLM) and the Parallel Convolutional Network (PCN). DLM features a feedforward connection, which carries the error information of GCN modules with the same structure, where GCN and CNN modules directly extract the original information from the input data, making the spatiotemporal information extracted by these modules more complete than that of GCN and CNN tandem structure. PCN comprises GCN and Convolution Neural Network (CNN) in parallel. Our network achieves comparable performance on the NTU RGB+D 60 dataset, the NTU RGB+D 120 dataset and the Northwestern-UCLA dataset while considering both accuracy and calculation parameters.
An efficient intrusion detection method using federated transfer learning and support vector machine with privacy-preserving
Authors: Wu Weifei , Zhang Yanhui
Published: June 2023

In recent decades, network security for organizations and individuals has become more and more important, and intrusion detection systems play a key role in protecting network security. To improve intrusion detection effect, different machine learning techniques have been widely applied and achieved exciting results. However, the premise that these methods achieve reliable results is that there are enough available and well-labeled training data, training and test data being from the same distribution. In real life, the limited label data generated by a single organization is not enough to train a reliable learning model, and the distribution of data collected by different organizations is difficult to be the same. In addition, various organizations protect their privacy and data security through data islands. Therefore, this paper proposes an efficient intrusion detection method using transfer learning and support vector machine with privacy-preserving (FETLSVMP). FETLSVMP performs aggregation of data distributed in various organizations through federated learning, then utilizes transfer learning and support vector machines build personalized models for each organization. Specifically, FETLSVMP first builds a transfer support vector machine model to solve the problem of data distribution differences among various organizations; then, under the mechanism of federated learning, the model is used for learning without sharing training data on each organization to protect data privacy; finally, the intrusion detection model is obtained with protecting the privacy of data. Experiments are carried out on NSL-KDD, KDD CUP99 and ISCX2012, the experimental results verify that the proposed method can achieve better results of detection and robust performance, especially for small samples and emerging intrusion behaviors, and have the ability to protect data privacy.
A new Chinese text clustering algorithm based on WRD and improved K-means
Authors: Cui Zicai , Zhong Bocheng , Bai Chen
Published: June 2023

Text clustering has been widely used in data mining, document management, search engines, and other fields. The K-means algorithm is a representative algorithm of text clustering. However, traditional K-means algorithm often uses Euclidean distance or cosine distance to measure the similarity between texts, which is not effective in face of high-dimensional data and cannot retain enough semantic information. In response to the above problems, we combine word rotator’s distance with the K-means algorithm, and propose the WRDK-means algorithm, which use word rotator’s distance to calculate the similarity between texts and preserve more text features. Furthermore, we define a new cluster center initialization method that improves cluster instability during random initial cluster center selection. And, to solve the problem of inconsistent length between texts, we propose a new iterative approximation method of cluster centers. We selected three suitable datasets and five evaluation indicators to verify the feasibility of the proposed algorithm. Among them, the RI value of our algorithm exceeds 90%. And for Marco_F1, our scheme was about 37.77%, 23.2%, 13.06% and 20.12% better than other four methods, respectively.
A parallel and balanced SVM algorithm on spark for data-intensive computing
Authors: Li Jianjiang , Shi Jinliang , Liu Zhiguo , Feng Can
Published: June 2023

Support Vector Machine (SVM) is a machine learning with excellent classification performance, which has been widely used in various fields such as data mining, text classification, face recognition and etc. However, when data volume scales to a certain level, the computational time becomes too long and the efficiency becomes low. To address this issue, we propose a parallel balanced SVM algorithm based on Spark, named PB-SVM, which is optimized on the basis of the traditional Cascade SVM algorithm. PB-SVM contains three parts, i.e., Clustering Equal Division, Balancing Shuffle and Iteration Termination, which solves the problems of data skew of Cascade SVM and the large difference between local support vector and global support vector. We implement PB-SVM in AliCloud Spark distributed cluster with five kinds of public datasets. Our experimental results show that in the two-classification test on the dataset covtype, compared with MLlib-SVM and Cascade SVM on Spark, PB-SVM improves efficiency by 38.9% and 75.4%, and the accuracy is improved by 7.16% and 8.38%. Moreover, in the multi-classification test, compared with Cascade SVM on Spark on the dataset covtype, PB-SVM improves efficiency and accuracy by 94.8% and 18.26% respectively.