bluuebunny/crossref_metadata_2025 huggingface dataset:
Studi Korelasi Persepsi Risiko Bencana dengan Kesiapsiagaan Banjir pada Masyarakat di Bantaran Sungai Bengawan Solo
Authors: Nugrahani Prasasti Sasmita , Imamah Ida Nur
Published: July 2024

Latar  Belakang: Salah satu bentuk ancaman yang dihadapi Indonesia adalah bencana alam, dalam hal ini banjir. Sepanjang tahun 2021 hingga 2023, berbagai kejadian banjir dilaporkan terjadi dan berdampak pada sejumlah wilayah, termasuk Surakarta. Menurut BPBD Surakarta terkena banjir  karena berada di kawasan bantaran Sungai Bengawan Solo yang sering banjir di kala musim hujan, dan berdampak pada kesehatan. Dampak banjir yang banyak yaitu di Kelurahan Sangkrah. Untuk meminimalisir dampak tersebut maka diperlukan kesiapsiagaan. Kesiapsiagaan individu dipengaruhi oleh persepsi risiko bencana. Masyarakat di Sangkrah persepsinya tinggi, sedangkan kesiapsiagaannya kurang siap. Tujuan: Untuk mengetahui hubungan persepsi risiko bencana dengan kesiapsiagaan bencana banjir pada masyarakat di Kelurahan Sangkrah. Metode: Penelitian ini adalah kuantitatif dengan pendekatan cross sectional. Jumlah sampel didapatkan dari perhitungan rumus Slovin yaitu 82 responden. Instrumen yang digunakan pada penelitian ini yaitu kuesioner skala guttman. Hasil: Hasil penelitian didapatkan bahwa terdapat hubungan antara persepsi risiko bencana dengan kesiapsiagaan bencana banjir pada masyarakat di Kelurahan Sangkrah Kota Surakarta. Hasil uji Rank Spearman didapatkan koefisien korelasi (r) = 0,614 arah hubungan yang positif dengan nilai signifikasi 0,000. Kesimpulan: Terdapat hubungan antara persepsi risiko bencana dengan kesiapsiagaan bencana banjir pada masyarakat di Kelurahan Sangkrah Kota Surakarta.
Regulación de la tarea y la comunicación en grupos de bajo y alto rendimiento durante la ejecución de tareas colaborativas
Authors: Granados-López Hedilberto , Álvarez Polo Diego Andrés
Published: July 2024

Objetivo: se reportan los hallazgos de una investigación en la que se tuvo por objetivo examinar la regulación de la tarea y de la comunicación, durante el desarrollo y ejecución de tareas colaborativas en grupos de alto y bajo rendimiento. Metodología: se optó por un enfoque cualitativo de tipo interpretativo con diseño de estudios de casos múltiple (Yin, 2006). Para el estudio se analizaron episodios de interacción relacionados con la regulación social de la tarea y la comunicación registrados en grabaciones de video. El estudio contó con la participación de (n= 15) estudiantes de primer semestre de una maestría en educación en modalidad virtual de la cuidad de Manizales, Colombia. Los participantes se distribuyeron en cinco grupos de trabajo constituidos de manera espontánea. Resultados: los resultados permitieron identificar diferencias en la regulación de la tarea y de la comunicación. Esto facilitó comprender la dinámica en los grupos relacionada con la regulación de la tarea y la comunicación y su impacto en el éxito académico. Conclusiones: los grupos de alto rendimiento presentan características en la regulación de la tarea y de la comunicación que podrían ayudar en la comprensión del éxito académico y desarrollo de tareas genuinamente colaborativas.
FREQUENCY DISTRIBUTION OF MEDIA CONTENT IN THE HTML TAGS REPRESENTATION
Authors:   Federal State Budgetary Educational Institution of Higher Education ", Danilenko K.S. ,   Bauman Moscow State Technical University (National Research University)",   , Moscow, Russia, Baeva A.V. ,   Federal State Budgetary Educational Institution of Higher Education "Bauman Moscow State Technical University (National Research University)", Moscow, Russia, Amursky V.B. ,   Federal State Budgetary Educational Institution of Higher Education "Bauman Moscow State Technical University (National Research University)", Moscow, Russia, Borovik I.G. ,   Federal State Budgetary Educational Institution of Higher Education "Bauman Moscow State Technical University (National Research University)", Moscow, Russia
Published: July 2024

This article examines the distribution of media content on websites in the context of the chronology of HTML development and the associated IEEE rfc committee. The study is conducted with the participation of more than 500 sites, which allows you to obtain an extensive sample of data. The authors analyze the placement of content relative to various HTML tags, identifying trends and features in its distribution depending on the HTML versions used. Special attention is paid to links, images and video files as the main types of media content on web pages. The results obtained represent an important contribution to understanding how content is structured and distributed on the web in the context of the evolution of HTML standards. The research can be useful both for web development specialists and for researchers who collect large amounts of data from the World Wide Web.
SOME PROCEDURES FOR IMPROVING THE SECURITY OF THE USE IoT DEVICES IN HEALTHCARE
Authors:   Pan-European University APEIRON, Banja Luka, Republika Srpska, Bosnia and Herzegovina, Kovacic Boris A. , Avramovic Zoran Ž. ,   Pan-European University APEIRON, Banja Luka, Republika Srpska, Bosnia and Herzegovina
Published: July 2024

IoT devices have managed to improve healthcare through evolution. Namely, the first problem that arose with the advent of these devices was the problem of weak hardware. Over the course of evolution, these devices have been improved to the point that they allow encrypted data exchange. The article presents security solutions used in Internet of Things devices in medicine and pharmaceuticals, and also notes the importance of security of Internet of Things devices and the trend for further development of security of Internet of Things devices in healthcare.
AUTOMATION OF RAIL TRANSPORT TRAFFIC PLANNING IN THE RUSSIAN FEDERATION AND THE PEOPLE'S REPUBLIC OF CHINA
Authors:   Russian University of Transport (MIIT), Mao Zechen
Published: July 2024

The article discusses methods for automating train scheduling using the example of the Moscow Metro. The results of the automation of metro train planning should also be applied to railway transport, which will be a further step towards the development of intelligent transport systems.
SIMILARITY PRINCIPLES APPLICATION TO THE TRAINS SCHEDULE BLANKS AND ACTUAL TRAINS SCHEDULE MODELING ON METRO LINES WITH A CIRCLE TOPOLOGY
Authors:   Russian University of Transport (MIIT), Safronov A.I. , Ovsyanikov G.P. ,   Russian University of Transport (MIIT)
Published: July 2024

The article proposes an approach to modeling metro lines classified geographically as having a circle topology for passenger trains schedule automation construction needs based on the similar figures constructing geometric principle – the similarity principle. The similarity coefficient of the Moscow’s underground Big Circle line relates to the Circle line is determined. The investigations results related the Big Circle and Circle lines similarity features identification are presented. The significant dependencies that contributed to the underground passenger trains schedule automation construction algorithms generalization and modernization aimed on efficiently underground lines supplying with electric rolling stock resources by several depots are noted.
MODELING AND CONTROL OF 6-DOF UAV QUADCOPTER USING PID CONTROLLERS ARCORDING TO ZIEGLER-NICHOLS
Authors:   University of Transport and Communications, Hanoi, Vietnam, Trinh Luong Mien , Vo Van An ,   Eastern International University, Binh Duong, Vietnam
Published: July 2024

This article presents the results of research on developing mathematical models and designing 6 PID controllers for 6-DOF UAV quadcopter. First, the mathematical model of the 6-DOF UAV quadcopter considering the impact of wind disturbance is built based on the Newton-Euler equation and Euler-Lagrange equation. Then, the article presents the method of designing 6 PID controllers according to Ziegler- Nichols. Finally, the article presents the results of modeling and simulation of the 6-DOF UAV quadcopter control system on Matlab/Simulink. Simulation results show that the proposed PID controllers for 6-DOF UAV quadcopter control quality meet the requirements.
SIMULATING A SYSTEM FOR COMMUNICATING TRACK NUMBER INFORMATION TO ON-BOARD TRAIN PROTECTION DEVICES
Authors:   Joint-stock company “Research and design institute for information technology, signaling and telecommunications in railway transportation”, Moscow, Russia, Boyarinova N.A.
Published: July 2024

The author has modeled a system for communicating track number information to the on-board train protection device, whereas the probability of error-free input is affected by several factors. The effect of the above data communication system on the resulting probability of failure to detect a track number input error is evaluated.
DETERMINING THE INTERVALS BETWEEN FREIGHT TRAINS WHEN USING FULLY FRACTIONAL NUMBERING OF TRAIN LINES IN THE STANDARD TIMETABLE
Authors:   Russian University of Transport (MIIT), Vakulenko S.P. , Ershov A.D. ,   Russian University of Transport (MIIT), Kalinin K.A. ,   Russian University of Transport (MIIT)
Published: July 2024

The article proposes a method for calculating the interval between freight trains at major railway junctions, provided that fully fractional numbering of freight train lines is used in the standard schedule. The results obtained contribute to the rhythmic operation of railway transport and the rational use of technical and human resources.
THE FEATURES OF INFORMATION SECURITY TOOLS CENTRALIZED CONTROL
Authors:   Russian University of Transport (MIIT), Ikonnikov S.E. , Ermakova A.E. ,   Russian University of Transport (MIIT), Nuzhdin O.O. ,   Russian University of Transport (MIIT)
Published: July 2024

This article examines the indicators that are used to assess the state of information security in an organization. Modern problems related to the centralized management of information security tools were also identified. Based on these problems, the requirements for the Information Security Management Center were determined, as well as the functions that the central information security management body should perform. It is concluded that effective management of information security tools should be based on secure software development and the use of internal hardware and software complexes to protect information.
ANALYSIS OF THE TECHNICAL CONDITION OF THE CONTACT NETWORK OF ELECTRIFIED RAILWAYS IN KAZAKHSTAN AND WAYS TO IMPROVE IT
Authors:   JSC ", Kaliyev Zh.Zh. ,   Academy of Logistics and Transport",   , Almaty, Republic of Kazakhstan, Utepbergenova S.M. ,   JSC "Academy of Logistics and Transport", Almaty, Republic of Kazakhstan
Published: July 2024

This article presents an analysis of the technical condition of the contact network of electrified railways in Kazakhstan, followed by recommendations for its development. The study examines the main components of the contact network, evaluates the current state of the infrastructure, and identifies problem areas. Based on the obtained results, specific measures are proposed to improve the technical condition of the contact network with the aim of increasing the efficiency and reliability of railway transport in the country.
APPLYING CYBERIMUNITY PRINCIPLES TO ENSURING SECURITY IN TRANSPORTATION SYSTEMS
Authors:   Russian University of Transport (MIIT), Loginova L.N. , Domashkin A.D. ,   RT-Information Security JSC, Moscow, Russia
Published: July 2024

The work shows the relevance of information security problems in the transport sector, and proposes to use the cyber immunity technique to reduce the number of successful attacks and increase the efficiency of information security. An algorithm for applying the methodology to solve problems in the transport industry is presented and an example of developing the architecture of a system for secure data transfer between devices is considered, including the goals and assumptions of security, and the architecture of the system is shown.
Pemurnian Minyak Jelantah Menggunakan Adsorben Natural Dari Pelepah Sawit dengan Perbedaan Ukuran Mesh dan Massa
Authors: Fithry Dwi Annisa , Haryanto Bode , Affandi Rizki , Hutabarat Asrina , Febrisma Anggun
Published: July 2024

Indonesia is the second largest producer of palm oil in the world today after Malaysia. Since 2003, the amount of palm oil production in Indonesia has reached approximately 9.9 million tons per year. According to (BPS 2021), the area of oil palm land in North Sumatra reached 442 072.76 hectares. This research will purify used cooking oil using natural adsorbents by utilizing palm frond waste. Palm fronds are chopped into powder, then sifted with sizes of 50, 70 and 100 mesh after which they are weighed with weights of 1.5, 3 and 4.5 grams. Oil palm frond adsorbents with mass variations of 4.5 grams have the greatest adsorption power in reducing used cooking oil and the best adsorption kinetics based on the correlation coefficient is the pseudo second order equation.
Pengaruh Jumlah Penumpang dan Durasi Buka Tutup Pintu Terhadap Perubahan Suhu (Studi Kasus: Kereta Inspeksi PPI Madiun)
Authors: Syafitri Wasis Desti Cindy , Puspitasari Mariana Diah , Winjaya Fathurrozi
Published: July 2024

The inspection train is specialized equipment used for examining railway tracks, transporting personnel, and carrying work equipment. The inspection train must be equipped with operational tools, monitoring equipment, and work comfort equipment. One of the comfort equipment is air circulation control, which should provide comfort to the personnel while working. Factors influencing the air temperature inside the inspection train include the number of passengers and duration of door opening. This research employs the Design of Experiment data processing method, with the data analyzed using a 2-factor factorial design experiment, with the assistance of Minitab software to understand the influence of the number of passengers and the duration of door opening-closing on temperature changes inside the inspection train. The result obtained from Minitab analysis indicate that the number of passengers has a significant influence on temperature changes inside the inspection train, accounting for 5.2% of the variation. On the other hand, the duration of door opening-closing does not have a significant effect on temperature changes. Additionally, the interaction between the number of passengers and the door open-close duration does not have a significant influence on temperature changes inside the PPI Madiun Inspection Train.
Penerapan Teknologi Realitas Virtual untuk Pelatihan Keselamatan Pekerja dalam Operasi Mesin Industri Berat
Authors: Effendi Ryan , Zulfikar Iwan , Rusba Komeyni , Kartika Siska Ayu , Utama Satrio Darma
Published: July 2024

The application of Virtual Reality (VR) technology in worker safety training in heavy industries has been an intriguing subject of research in recent years. This journal article aims to provide a literature review on how VR is utilized in this context. The literature review method is employed to gather, evaluate, and synthesize findings from various related studies. This literature review reveals that the use of VR has proven effective in enhancing worker safety and operational skills in various heavy industries. By enabling training in a simulated virtual environment, VR technology can deliver realistic experiences without actual physical risks. Previous studies indicate that workers who receive VR training tend to have a better understanding of potential risks and safety procedures, leading to a decrease in accident rates. The advantages of VR also include its ability to provide repeatable training without significant additional costs. This allows workers to gain consistent hands-on experience, reinforcing their skills in hazardous situations. Thus, the use of VR in worker safety training in heavy industries promises significant benefits in efforts to improve worker safety and well-being.
Implementasi Metode Moving Average dan Regresi Linier pada Peramalan Permintaan Mie di PT XYZ
Authors: Setyawati Maria Angela Putri , Nisah Firda Ainun
Published: July 2024

PT XYZ is a company operating in the food industry. The company produces various kinds of food, such as biscuits, wafers, vermicelli and noodles. Noodle products are the most popular products, and there are often significant changes in each period. This causes fluctuations and results in uncontrolled inventory. PT XYZ can avoid this problem if it has a way to estimate noodle demand. Forecasting is a planning method for estimating products in the future. The moving average and linear regression methods are the methods used in this research. Based on the results of the calculations carried out, the method chosen is the linear regression method because the smallest Mean Squared Error (MSE) value is 620370900 and the tracking signal results from the linear regression method are close to zero. The results of forecasting the need for noodle products for the next period were 169,524 pcs. It is hoped that the results of this forecasting can help PT XYZ in carrying out production planning.
Analysis of Landslide Handling With Mini Pile Reinforcement Using Plaxis Software on The “X” Toll Road Project
Authors: Rumbyarso Yonas Prima Arga , Pribadi Gali
Published: July 2024

The Semarang-Demak Toll Road faces geotechnical problems due to geological conditions that include hilly areas and basins, with bedrock such as claystone, shale, and lignite that are prone to weakening. A landslide occurred at the Semarang-Demak Toll Road site between Sta. 1+250 and Sta. 2+715, despite various methods of embankment work that were not entirely successful, therefore causing damage. The analysis showed a discrepancy between the theoretical factor of safety and the actual landslide condition, requiring slope reinforcement technology such as mini piles that effectively inhibit soil movement. Mini piles, in the form of reinforced concrete with a length of 7 to 10 meters and a spacing of 2 meters between piles, plus the use of geotextiles, analyzed using the Plaxis 2D program showed an increase in the factor of safety. Although there were slight differences between the reinforcement models, the combination of mini piles and geotextiles proved effective, especially when placed in hard soil layers or over soft soil at a depth of 7 meters from the surface, overcoming the embankment loads at the site.
Analisa Kapasitas Produksi Line Welding LDT Menggunakan Metode Rough Cut Capacity Planning pada PT. ABC
Authors: Edison Fauzan Wijdan Hilmi , Winarno Winarno , Nugraha Billy
Published: July 2024

PT ABC is a limited liability company engaged in heavy automotive production that has many products such as medium trucks, small trucks, bus chassis, engines and other spare parts. In assembling a Light Duty Truck through several work stations and must go through production schedule planning to meet the requested production demand. In the case of the welding line, there is a mismatch in production results with the planned production results at the end of the production period not in accordance with the scheduling carried out. So it is necessary to analyze production capacity using the calculation of Rough Cut Capacity Planning, after the calculation it is found that there are still several work stations that experience a lack of production capacity of -849 hours and excess capacity for production throughout the 12-month period. This shows that the lack of efficiency of the available capacity at each station in the LDT welding line so that it cannot produce according to the planned production demand
Perhitungan Tingkat Resiko Terhadap Keputusan Investasi Mesin Heidelberg
Authors: Dhani Faricha Amarah , Murnawan Hery
Published: July 2024

KGU is a company operating in the offset printing industry which produces story book series. In the last 6 months, KGU has experienced a decline in productivity and production targets have not been achieved. This happens because Komori engines often experience damage. Frequent downtime causes companies to want to replace machines by considering the company's cash flow. The purpose of this research is to determine the feasibility value of investment. The company will replace the Komori engine, by investing in a Heidelberg engine at a price of Rp. 760,000,0000. Investment analysis uses the NPV, IRR, Payback Period and Profitability Index methods. The results of the analysis used are NPV of IDR 793,678,932 > 0, IRR of 21.72%, payback period for return of investment capital which is 3 years 11 months, profitability index of 2.04> 1. Correlation coefficient value (risk value) 1, 62%. Based on the investment analysis, Heidelberg machines are worth investing in, because investing in these machines can streamline the production process, increase production results and company income
Pola Komunikasi Organisasi Dalam Bisnis Warehouses and Distribution Perusahaan Multinasional PT. Maersk Indonesia
Authors: Sari Maduma Yanti , Yazid Tantri Puspita , Rumyeni Rumyeni
Published: July 2024

PT. Maersk Indonesia is a multinational company operating in the warehouse and distribution sector. This research aims to determine organizational communication patterns in warehouse and distribution projects. The method used in this research is descriptive qualitative which focuses on observation and interviews. The research results show that the communication patterns developed in the Metalcom project consist of two forms: formal and informal, formal communication in the form of communication from superiors to subordinates, understanding of communication in multinational organizations, especially in Indonesia. communication from subordinates to superiors, horizontal communication, diagonal communication. The communication channel used the Metalcom project's warehousing and distribution using existing technology. Microsoft Teams, email, WhatsApp media. These communication barriers include cultural differences between superiors and subordinates, the use of cultural terminology, native accents or dialects translated into English, and unclear explanations. It is hoped that the results of this research can provide a significant contribution to the
Indonesia’s Crude Palm Oil (CPO) Performance: Why Do Export Activities Exist?
Authors: Aini Halia Butra , Usmayanti Vivi , Sari Dwi Darma Puspita
Published: July 2024

This study aims to analyze the performance of Indonesia’s CPO exports and the effect of world CPO prices, rupiah exchange rate per US dollar and CPO production on the supply of CPO export in Indonesia from 1995-2020. The method that used in this research is Error Correction Model (ECM). The results of descriptive analysis are reflected: (a), the export volume of Indonesia’s CPO is very fluctuating in relation to the development of production variables, the value of the rupiah per US dollar and the world CPO export price; (b), the competitiveness of Indonesia’s CPO exports computed by the RCA Index reflects a relatively low competitiveness are less than one, but the trend has improved since 2012, where the RCA Index is greater than one. The regression results showed that, in the long-term, CPO production have a positive and significant impact on the CPO exports growth during the period, whereas in the short term the production have a negative and insignificant effect. The world price of CPO in the long and short-term prices have a negative and insignificant effect. The rupiah exchange rate per US dollars in the long term and short term have negative and significant effect. In the long term all independent variables have significant effect on the dependent variable, while in the short term all the variables have no significant effect on export volume variables.
Redesain Bioreaktor Guna Mempercepat Proses Fermentasi Pembuatan Pupuk Organik di Desa Minggirsari Kecamatan Kanigoro Kabupaten Blitar
Authors: Pratama Novi Ariyan , Murnawan Hery
Published: July 2024

Alongside the increasing potential of the agriculture and plantation sectors in Minggirsari Village, Blitar Regency, there have been concerns among farmers regarding the decreasing supply of both subsidized and non-subsidized chemical fertilizers. However, these concerns were validated with the invention of an automatic anaerobic bioreactor by Nawang Sonia in 2023. The device is capable of reducing the fermentation process time from the initial 14-21 days to just 3-5 days. Although the designed device still had some functional limitations hindering its performance, a redesign was deemed necessary. The redesign was conducted using the Quality Function Deployment method through the distribution of questionnaires or Voice of Customer. Subsequently, a House of Quality was obtained, which served as the basic concept for the device's redesign. From this research, eight features were added to the device. The results showed that the device was more optimal, flexible, and effective than the previous anaerobic bioreactor design.
Optimasi Rute Distribusi Biskuit Ubm Menggunakan Metode Saving Matrix untuk Meminimasi Biaya Distribusi pada PT. SJA
Authors: Utomo Edwin Adi , Wati Putu Eka Dewi Karunia
Published: July 2024

PT. SJA is a food distributor company located at Jalan Kalianget No.50-52 Surabaya. The main distribution product is UBM biscuits located at Waru, Sidoarjo. The operational costs used in carrying out distribution using the initial route are IDR 25,008,650 for delivery every day. Based on the large costs, a complicated route plan will occur in order to find the minimum costs possible. In optimizing the distribution routes above in order to minimize shipping costs to PT. SJA, a saving matrix method is used. This method can determine product distribution routes to all product marketing areas by determining the route chosen and the capacity of the vehicle used so that the closest route and lowest transportation costs are obtained. Based on the results of the analysis of the research objectives carried out, it can be concluded that the proposed route obtained from processing using the saving matrix method produces differences in terms of costs and transport capacity in March 2024, the company before using this method required shipping costs of IDR 25,008,650 and after using the saving matrix method the company can save costs by 22.34%, namely Rp. 19,421,100
Perencanaan Proyek Pemasangan Jalur Pipa Angin dan Kompresor pada beberapa Mesin Produksi di PT X
Authors: Ibrahim Attar , Murnawan Hery
Published: July 2024

A contractor is a party hired to complete a job. CV. Andhika Kencana is a contractor who has received wind pipe installation projects ranging from compressor machines to production machines. PT Compressor pipe installation is used to run automotion machines in the production area. Pressurized air is produced from the compressor which will later be connected to pipes until it reaches the automotion machines. The problem here is how to schedule pipe installation so that it is on time and in accordance with the budget that has been determined at the beginning. The methods used in this research are the Critical Path Method (CPM) and Program Evaluation and Review Technique (PERT). The results obtained are that the critical path in this project is activities A, B, D, F, H, I, K, M, N, O, and the probability that the wind pipe installation project can be completed in 60 days is 27.09%.
Usulan Perancangan Tata Letak Fasilitas pada Pembuatan Kulit Kebab Tortila Guna Meminimalisir Jarak Material Handling dan Meningkatkan Output Produksi (Studi Kasus: PT Tamma Robah Indonesia)
Authors: Prasetya May Irvan Aji , Wati Putu Eka Dewi Karunia
Published: July 2024

PT Tamma Robah Indonesia is a company operating in the manufacturing industry which produces kebab tortilla shells, the types of products produced by PT Tamma Robah Indonesia are TB (Large Tortilla), TS (Medium Tortilla), TM (Mini Tortilla), TC (Tortilla Catering). This research method uses the line balancing method which aims to obtain a smooth production flow in order to obtain high utility for facilities, labor and working time as well as simulating the production flow process, distance and increasing production output using flaxim software development to maximize the implementation of relayout. . Based on the results of the analysis of the research objectives carried out, it can be concluded that the line balancing calculation of the 4 products produced by PT Tamma Robah Indonesia selected the lowest Tortila Catering process distance with a cycle time of 130 seconds. /pcs, with 3 work stations, efficiency and delay 23%. and there are several proposed layouts that can minimize material handling distances.
Pengaruh Campuran Kawat Bendrat pada Karakteristik Beton dengan Subtitusi Fly Ash pada Nilai Slump
Authors: Winarko Edy , Trimurtiningrum Retno , Sutriono Bantot , Rochmah Nurul
Published: July 2024

The increasing use of concrete in the construction world encourages massive exploitation of the environment that has limestone or karst reserves to be used as the main raw material for making cement, to reduce the excessive use of cement, a way is used to utilize fly ash as a substitute for part of the cement in the concrete mixture to reduce the negative impact of limestone mining activities as well as cement production which contributes a total of 9% of CO2 emissions on earth. In this study, bendrat wire will also be added to determine the workability of fresh concrete mixes. From the results of the study it was found that concrete with fly ash substitution without bendingt wire mixture got an average height of 10.7 cm, while the variation with the addition of bending wire at 3% decreased in the average slump value to 10 cm where the increasing percentage of bending wire made the average slump value go down, seen in the 6% and 9% variations which experienced a decrease in the average height of the slump with a height of 9.7 cm and 9 cm, this can have an impact on the workability of the concrete mix itself, with a higher percentage of bending wire will have difficulty when applying to building construction.
Pengaruh Penambahan Presentase Serbuk Kaca pada Karakteristik Beton Terhadap Nilai Slump
Authors: Fadilla Deska Vira , Trimurtiningrum Retno , Sutriono Bantot , Rochmah Nurul
Published: July 2024

Concrete is the most commonly used construction material in the construction industry. Concrete has properties that are resistant to high pressure and extreme temperatures which allows wide use and according to needs. In this research, additional materials were used from glass waste which was processed into glass powder that passed through sieve No. 200. To find out additional characteristics, one of them is to know the effect of the slump value which is planned in accordance with SNI 03 – 2834 – 2000. This research uses the DOE (Department of Environment) method. The results of this research show that the average slump value of concrete aged 7 days, 14 days, and 28 days using glass powder percentages of 0%, 4.5%, 6.5% , 8.5%, and 10.5% are 12 cm, 12 cm, 10.33 cm, 9.83 cm, and 9.33 cm.
Compressive Strength of Geopolymer Mortar Reinforced with Rice Husk Fibers
Authors: Mohammed Sally Hashim , Fawzi Nada Mahdi
Published: July 2024

Geopolymer concrete has been proposed to minimize carbon dioxide emissions related to the cement production industry. This environmentally friendly material consists of industry waste materials activated chemically by an activation solution. In this study, the geopolymer mortar has been designed with 70% fly ash and 30% metakaolin. Hydroxide sodium in 14 molar concentrations blended with sodium silicate in a 2.5:1 ratio was used as the activation solution. Rice husk fibers were added as reinforcement in (1%, 1.5%, and 2%), and waste paper (paper pulp and paper ash) was added in (1%, 2%, and 5%) by volume of cementitious material. The geopolymer mortar samples underwent a curing process through exposure to a temperature of 60°C in an oven for 24 hours. The findings indicate that the samples reinforced with 2% rice husk fibers exhibited the most significant improvement in compressive strength, with 59% and 55% increases after 7 and 28 days of curing, respectively. In general, using waste paper and rice husk fibers significantly enhanced the compressive strength of geopolymer mortar.
IoT-Based Low-Cost Smart Health Monitoring System using Raspberry Pi Pico W and Blynk Application
Authors: Mohammed Hala Jassim
Published: July 2024

في السنوات الأخيرة، أدى التقدم التكنولوجي في إنترنت الأشياء (IoT) وأجهزة الاستشعار الذكية إلى فتح اتجاهات جديدة وإعطاء حلول عملية في مختلف قطاعات الحياة. يتم التعرف على إنترنت الأشياء كتنولوجيا حديثة تربط بين مختلف انواع الشبكات. تم تحسين أنواع مختلفة من قطاعات الرعاية الصحية في المجال الطبي بناءً على هذه التكنولوجيا. أحد هذه القطاعات الهامة هو نظام مراقبة الصحة (HMS). تعتبر مراقبة المريض عن بعد لاسلكيًا وبتكلفة منخفضة أمرًا بالغ الأهمية في هذا المجال. في هذا العمل، تم اقتراح نظام مراقبة صحة المريض في الوقت الحقيقي وبتكلفة منخفضة. يتم دمج أنواع مختلفة من أجهزة الاستشعار في شبكة اتصالات لاسلكية لجمع الإشارات الفسيولوجية للمريض عن بعد وإرسالها إلى المختص في أسرع وقت ممكن. يتكون االنظام المقترح من عدد من أجهزة الاستشعار الذكية التي تقيس معلمات مختلفة وهي: عدد نبضات القلب بالدقيقة، درجة حرارة الجسم، وSPO2 (تشبع الأكسجين). تُستخدم هذه الحساسات لحساب معدل ضربات قلب المريض ودرجة حرارة الجسم ونسبة تشبع الأكسجين للمريض على التوالي. يتم عرض حالة المريض اما على شاشة OLED اوباستخدام تطبيق Blynk. في هذا النظام نستخدم لوحة Raspberry Pi Pico W كوحدة تحكم دقيقة مع مفهوم الحوسبة السحابية. بحيث يتم استخدام لوحة Raspberry Pi Pico W لنقل البيانات لاسلكيًا على تقنية إنترنت الأشياء باستخدام تطبيق Blynk. يتم نقل المعلمات الحيوية للمريض عن بعد عبر شبكة Wi-Fi مما يساعد في مراقبة المعلومات الصحية للمرضى لاسلكيًا وفي الوقت الحقيقي. من خلال النتائج التي تم الحصول عليها وجد ان البيانات التي تم الحصول عليها من المريض يتم نقلها بسرعة كبيرة ويمكننا فحص العديد من المرضى عن بعد من خلال الحفاظ على مسافة مناسبة مع المرضى. تم مقارنة النظام المقترح مع الانظمة الموجودة عن طريق قياس العلامات الحيوية لعدد من الأشخاص وأظهرت النتائج أن البيانات التي تم الحصول عليها من الأشخاص متقاربة جدا. علاوة على ذلك، فقد وجد أن النظام المقترح ذو تكلفة منخفضة مقارنة بالأجهزة الأخرى المتوفرة تجاريا.
Book of abstract conference proceeding: the 8th International Conference on Interdisciplinary Business, Economy, Management, and Social Studies (8th IBEMS)
Authors: Dwi Mulyaningsih Hendrati
Published: July 2024

Abstract Book of the 8th International Conference on Interdisciplinary Business, Economy, Management, and Social Studies (8th IBEMS) is a scientific output from a conference program organized by Research Synergy Foundation. This conference aims to provide an immersive research dissemination experience that invites you to explore the interconnected domains of Business, Economy, Management, and Social Studies. The Abstract Book covers theoretical practices and their implications in Sustainability Studies, Social Studies, Education, Humanities, Business, Psychology, Entrepreneurship, Management, and Human Resources Management, and Many More. The expected contribution of this Proceeding is to give an multidisciplinary insight into the latest research and study in line with the related field of studies.
QR Code-Based Attendance System for Contact Tracking Post-Pandemic
Authors: Al Amin Imam Husni , Lusiana Veronica , Hartono Budi , Wahyu Dimas
Published: July 2024

The COVID-19 pandemic has brought about profound changes in daily life and introduced new challenges to public health maintenance. Despite ongoing uncertainties, with certain regions easing or completely lifting community activity restrictions, persistent concerns about the virus's continued threat prompt the need for robust health monitoring measures. In this context, the use of contact tracing apps becomes pivotal for organizing individuals' movements, monitoring social distancing, and ensuring adherence to health protocols. This study introduces a QR code-based attendance system, a meticulously designed web and Android application aimed at efficiently and accurately tracking individuals' whereabouts. The system leverages QR code scanning technology, and to enhance security, employs the Advanced Encryption Standard (AES) method for data encryption. This ensures the safe encryption of sensitive data, preserving its confidentiality and integrity during transmission and storage. The research outcome is a versatile application facilitating seamless access across diverse locations, allowing real-time tracking of individuals' presence. This capability proves crucial for contact tracing efforts in the event of positive cases, contributing to the implementation of post-pandemic security and surveillance policies. The system's design and features align with the evolving landscape of the pandemic, emphasizing adaptability and comprehensive support for public health initiatives.
Structural Equation Modeling in E-Commerce Application Users: Case Study of Shopee
Authors: Walean Ronny H. , Rasuh Douglass , Ratulangi Cliford R.
Published: July 2024

In line with current developments, especially advances in technology that are increasingly advancing, it facilitates all community activities in buying and selling goods, with the existence of e-commerce now people no longer need to go directly to the store to make these transactions. One of the e-commerce applications that are widely used today is a platform for shopping on the internet called Shopee which is easy to use. This study aims to see what factors are included in the form of acceptance by users of e-commerce applications, especially at Shopee, using Davis' (1989) Technology Acceptance Model (TAM) methodology. In this study, the analysis was conducted on 220 respondents who often or have used the Shopee application using the SEM PLS data analysis tool and a quantitative approach with the SmartPLS application. The results demonstrate the pathway through which users' attitudes toward usage are shaped by their perceptions of usefulness and ease of use, subsequently influencing their behavioral intentions, and ultimately impacting their actual usage behavior on the e-commerce application, namely Shopee. This study comprehensively elucidates the interrelationship among each Technology Acceptance Model (TAM) variable examined. Overall, the application of TAM in investigating the use of Shopee is validated through the findings of this study
“Many people… tried to speak Ukrainian”. Ukraine 1917–1919 in the memories of General V. V. Bunyakovsky
Authors: Ganin Andrey ,   Institute of Slavic Studies, Russian Academy of Sciences
Published: July 2024

The article is devoted to the analysis of unpublished memories of Major General V. V. Bunyakovsky about his life in 1917–1919 in Ukraine. Bunyakovsky’s memories are kept in the Russian State Military Historical Archives and in the State Archives of the Russian Federation, and were originally kept in the Russian Foreign Historical Archives in Prague. The preserved body of the general’s memories covers the period from the First World War to emigration, but one of the most interesting parts concerns the 1917–1919 period. In 1917–1918 Bunyakovsky was a member of the liquidation commission of the Nicholas Military School in Kiev, which he led; in the Ukrainian army of Hetman P. P. Skoropadsky in 1918 he was a member of the commission for the organization of military schools; in the Red Army in 1919 he headed the department of military educational institutions of the People’s Commissariat for Military and Naval Affairs of the Ukrainian SSR. The general was an eyewitness to large-scale historical events, including multiple changes of power in Kiev, met with a number of historical figures of that period and described his impressions in detail. Memories were written during his stay in exile in Serbia in the mid-1920s.
Czechoslovak politicians in Soviet diplomatic reports and the issue of establishing official relations between Czechoslovakia and Russia / USSR (early 1920s)
Authors: Serapionova Elena ,   Institute of Slavic Studies, Russian Academy of Sciences
Published: July 2024

The article analyzes the reports of Soviet representatives to the People’s Commissariat for Foreign Affairs about the views and policies of Czechoslovak state and political figures regarding Russia (the USSR) in the 1920s. Trying to achieve official recognition of Soviet Russia, and then the USSR, the heads of the Soviet mission in the Czechoslovak Republic S. I. Gillerson, P. N. Mostovenko, K. K. Yurenev, V. A. Antonov-Ovseenko, A. Ya. Arosev reported to G. V. Chicherin and M. M. Litvinov about the positions of the president, ministers, heads of political parties, diplomats of Czechoslovak Republic on this issue. At the same time, they often gave detailed characteristics of Czechoslovak figures, pointed out the internal factors and external reasons that prevented the ratification of the temporary Soviet-Czechoslovak agreement of 1922 and the establishment of diplomatic relations between the two countries. In addition, in these reports were recorded changes in the positions of individual politicians towards Russia depending on external circumstances. The documents of the Archive of Foreign Policy of the Russian Federation and published materials on the history of Soviet-Czechoslovak relations, used by the author, help to understand better the problematic nature of the relations between the two countries.
Macedonian writer Venko Andonovski upon true and imaginary artistic values
Authors: Sheshken Alla ,   Lomonosov Moscow State University
Published: July 2024

The Macedonian writer Venko Andonovski (1964) in his works of recent decades (novels “The ABC for the Naughty,” “The Navel of the Earth,” “The Navel of the World,” etc.) and essays (“Dostoevsky and McDonald’s”) raises the issues of the axiology of modern literature, the integration of its value meanings into the worldview of contemporaries. The value dominants of fiction and their interpretation in the works of modern authors have become an important problem in the 21st century for Slavic countries, especially acute for authors of “small literatures”. Against the backdrop of major socio-political changes in recent decades, the commercialization of literature has become intensive and has seriously affected Slavic literatures. A modern writer often must choose between genuine creativity (a serious and deep understanding of the fate of his people, important events of our time, improving language and style, etc.) and the commercial success that a bestseller provides. Reflecting on the phenomenon of the bestseller, V. Andonovski sees in it a manifestation of globalization in art and calls it literary fast food. The writer figuratively calls the choice between genuine and imaginary artistic values a choice between Dostoevsky and McDonald’s. In essays and novels, V. Andonovski explores the importance of preserving national tradition and orientation towards the achievements of world literature, containing values of the highest spiritual order.
Social Ecological Model of LGBTQ+ People's Belonging
Authors: Matsick Jes , Sullivan Jude Thomas , Todd Emerson , Kruk Mary , Cook Jonathan Emdin
Published: July 2024

People who identify as lesbian, gay, bisexual, transgender, and queer and other people who are sexual and gender minorities (denoted by the umbrella term LGBTQ+) experience more physical and mental health problems than cisgender or heterosexual people, in part due to excess stress of experiencing stigma. Although it is important to document negative events in LGBTQ+ people’s lives, it is also necessary to identify conditions that provide LGBTQ+ people with the opportunity to thrive. One key psychological factor that can promote prosperity and lessen LGBTQ+ people’s disparate health problems is a sense of belonging. In this Review, we summarize factors identified in the psychological science, public health, and public policy literatures that influence LGBTQ+ people’s belonging. We use a social ecological model to describe factors that enhance and detract from belonging at the individual, interpersonal, community, and societal levels. Our multi-pronged approach encourages the flourishing of LGBTQ+ people as individuals while addressing structural forces that shape their psychosocial well-being. This Review is a resource for researchers, health practitioners, and policymakers who seek to understand diverse factors of belonging based on sexual orientation and gender diversity.
Graph Neural Network, ChebNet, Graph Convolutional Network, and Graph Autoencoder: Tutorial and Survey
Authors: Ghojogh Benyamin , Ghodsi Ali
Published: July 2024

This is a tutorial paper on graph neural networks including ChebNet, graph convolutional network, graph attention network, and graph autoencoder. It starts with Laplacian of graph, graph Fourier transform, and graph convolution. Then, it is explained how Chebyshev polynomials are used in graph networks to have ChebNet. Afterwards, graph convolutional network and its general framework are introduced. Then, graph attention network is explained as a combination of attention mechanism and graph neural networks. Finally, graph reconstruction autoencoder and graph variational autoencoder are introduced.
Attention Mechanism, Transformers, BERT, and GPT: Tutorial and Survey
Authors: Ghojogh Benyamin , Ghodsi Ali
Published: July 2024

This is a tutorial and survey paper on the attention mechanism, transformers, BERT, and GPT. We first explain attention mechanism, sequence-to-sequence model without and with attention, self-attention, and attention in different areas such as natural language processing and computer vision. Then, we explain transformers which do not use any recurrence. We explain all the parts of encoder and decoder in the transformer, including positional encoding, multihead self-attention and cross-attention, and masked multihead attention. Thereafter, we introduce the Bidirectional Encoder Representations from Transformers (BERT) and Generative Pre-trained Transformer (GPT) as the stacks of encoders and decoders of transformer, respectively. We explain their characteristics and how they work.
Diffusion Models: Tutorial and Survey
Authors: Ghojogh Benyamin , Ghodsi Ali
Published: July 2024

Diffusion models are a family of generative models which work based on a Markovian process. In their forward process, they gradually add noise to data until it becomes a complete noise. In the backward process, the data are gradually generated out of noise. In this tutorial paper, the Denoising Diffusion Probabilistic Model (DDPM) is fully explained. Detailed simplification of the variational lower bound of its likelihood, parameters of the distributions, and the loss function of the diffusion model are discussed. Some modifications to the original DDPM, including non-fixed covariance matrix, reducing the gradient noise, improving the noise schedule, and non-standard Gaussian noise distribution, and conditional diffusion model are introduced. Finally, continuous noise schedule by Stochastic Differential Equation (SDE), where the noise schedule is in a continuous domain, is explained.