bluuebunny/crossref_metadata_2025 huggingface dataset:
Ramp check examination evaluation of public transport business
Authors: Sahara S , Ladesi V K , Hadi W , Verawati K
Published: March 2021

The ramp check is needed to check the condition of each bus fleet before it operates, especially in the Pulo Gebang Terminal, which is one of the class A terminals in DKI Jakarta. Based on preliminary observations, only 9.16% of the bus fleet passed a ramp check from the total number of fleets in operation. A sequential strategy approach with mixed research methods is used in this study. This research is evaluation research using the Goal-Oriented Evaluation model approach. The object of the case study is the process of supervision of the ramp check to the bus fleet at the Pulo Gebang terminal. The sampling method used is purposive sampling. In terms of the quality of the ramp check supervision process for the bus fleet at the Pulo Gebang Terminal is included in the top category. Whereas, if seen from the number of fleets in operation with the number of fleets that have gone through the inspection, the ramp check is in a low category.
Effect of Supply Chain Management the competitiveness of the construction industry
Authors: Johari G J , Farida I , Susetyaningsih A , Walujodjati E , Permana S
Published: March 2021

The world of construction has increased rapidly but is still far from optimal. For example, the portion of external construction services in Indonesia is still quite significant, accompanied by development performance that is far from adequate and efficient. It is also undeniable that the role of the economy can also be felt in terms of employment potential, material needs and effects, public regulations that support the economy and including the influence of the expansion of the construction industry that is sustainable with commercial distribution to the community. The following research is included in the applied research category or applied research, namely, research aimed at solving problems faced by managers in the work environment. The authors use descriptive and explanatory research methods. The purpose of this study is the implementation of Supply Chain Management (SCM) to the contractor, to determine the competitiveness of the construction industry at the contractor, and to know the effect of SCM on the contractor, which is influenced by the level of competitiveness in the construction industry. The results show that there is a positive and significant influence of SCM on the competitiveness of the construction industry at the contractor.
Settlement and slope stability analysis of landfill site for sustainable utilization
Authors: Basoka I W A , Sinarta I N
Published: March 2021

Waste accumulation in a landfill is often made a problem, especially when the landfill has reached the end of its service life, so there is a need for further utilization of the landfill, one of the things that can be done is to utilize the landfill as a place where a building can be built. In this research, a review of the waste settlement and slope stability uses the Plaxis Program to determine whether the landfill is able to withstand the burden of buildings. The research is located at Piyungan Yogyakarta Landfill. Material data in the form of the value of the friction angle, the volume weight of waste, and the modulus of elasticity obtained from previous research. From the results obtained, it is known that the deformation of waste that occurs shows a significant settlement up to 45 cm with load 1250 kg/m2 so the foundation design at landfill area needs concern about high settlement, and this can be used as the basis for sustainable utilization of landfill.
Waste-based fiber concrete properties using supplementary material of bead wire scrap
Authors: Sambowo K A , Suherman A B , Prihantono P , Sumarsono R A
Published: March 2021

Fiber concrete has gained its popularity for the past few years to improve the tensile capacity of concrete by the presence of natural or synthetic fiber as the supplementary. The contrary, synthetic fiber mostly derives from the high energy consumption process so that fiber concrete is still considered not eco-friendly material. Thus, the alternative material for fiber is still widely opened such as utilizing wire-based waste like bead wire scrap from the used tires. The exposure of this paper is examining the fiber concrete properties of waste-based fiber concrete using up to 2% of bead wire scrap supplementary to the weight of cement. The physical and mechanical characteristics of bead wire scrap are eligible for the fiber in concrete which tensile strength reaching 615 MPa. Split tensile test of the fiber concrete resulted is best at 0.5% of bead wire scrap supplementary with the split tensile capacity of 2.57 MPa. Though, the capacity of the fiber concrete is investigated to have fluctuation on its supplementary variation percentage which could be concluded due to the non-uniformity of the fiber distribution in the concrete during mixing and moulding.
Interactive multimedia – based mobile learning prototipe development
Authors: Imania K A N , Mutaqin A Z , Purwanti Y , Bariah S H , Nasrulloh I
Published: March 2021

Mobile learning (m-learning) is a learning paradigm utilizing mobile technology and devices which is expected to experience rapid and potential development along with the development of mobile technology itself. The flow of information that is so swift requires each individual to be able to access learning activities more flexibly meaning without being limited by time and space. Therefore, we need an application that is able to accommodate the needs of every individual with a variety of activities but is still able to participate in various learning activities without limited space and time.
Design of learning applications using the Rapid Application Development method
Authors: Maulany R , Hasan B , Abdullah A G , Rohendi D
Published: March 2021

Information and Communication Technology (ICT) in the current era of globalization has become a fundamental requirement in supporting the effectiveness and quality of the education process. Educational issues in Indonesia such as the quality and relevance of education, access and equity in education, geographical range, education management, autonomy and accountability, efficiency and productivity, budget and sustainability, cannot be overcome without the help of ICTs. ICT-based education is a means of interaction between management and administration of education, which can be used by both educators and education staff and students in improving the quality, productivity, effectiveness and access to education. The purpose of this study is to find out how to design e-learning applications in informal and non-formal education, as well as efforts to improve the use of e-learning in informal and non-formal education. So that the results of this study can be improved the quality of informal and non-formal education, and can facilitate the field of education in Indonesia by using information technology as an interactive learning medium. The method developed in designing e-learning applications is to use a method that is generally used in the development of information systems using Rapid Application Development. The system that has been built can provide information about distance learning in informal and normal education. In addition, the system that has been built can accelerate the learning process for students / tutors. Therefore, it does not take long in the learning process and to get new material from the teacher. Moreover, the system built can facilitate users in learning and communicating with teachers when there is information needed / needed from the teacher.
Planning information systems Kuliah Kerja Nyata (KKN) Institut Pendidikan Indonesia Garut
Authors: Sidiq P , Bhakti D D , Reynaldi A M , Hamdani N A
Published: March 2021

Kuliah Kerja Nyata (KKN) is an intraculicular education activity multidisciplinary is carried out at outside campus including the practice of Higher Education Tri Dharma namely community service and carried out routinely every year. With the complex problem of KKN it is necessary to design a governing information system kuliah kerja nyata activities so that it runs well and smoothly, starting from planning activities, surveys, registration, grouping, monitoring, evaluation and reporting. Lembaga Pengabdian kepada Masyarakat (LPM) as a manager of KKN experiencing many problems, by making an analysis of system design system design real job lecture information is a solution to the problem the implementation of Kuliah Kerja Nyata runs effectively and efficiently, because with a real job lecture information system all activities can well organized, although at present there is an information system Kuliah Kerja Nyata running for registration and finance, but it is not yet comprehensive for other activities and is still conventional in nature. The focus of the objectives of this study is to produce a design planning analysis information system in the form of information needs with the required entity making it easier to develop KKN information systems with an approach Geographic Information System (GIS) with the application of progressive Web App for easier implementation. The purpose of this study to make the analysis of real working class information system to improve administrative services better.
Development of mobile learning: Basis of ethnopedagogy of Baduy Community, Banten Province
Authors: Rochmah N , Cahyana U , Purwanto A
Published: March 2021

Educational development in the Industrial Revolution 4.0 and the law of the Republic of Indonesia No. 11 of 2019 (National System of Science and Technology) can affect to digital learning. In regard to this, it is necessary to develop an instructional media mobile that is interactive towards the development of technology based on the traditional and cultural knowledge. This media development was systematically designed phases such as preliminary phase analysis of material needs and characters of the students; and phase of developmental design using flash devices based on the traditional and cultural knowledge of Baduy Community. The next phase was validation and material review by the experts: 3 Chemical Engineering lecturers, 2 Chemical Teachers and 3 Communication Science lecturers. Should the media claimed to be valid, trial was conducted by researchers. Media trial and revision on a small group comprised of 10 students and 2 teachers. Then, it was followed by a larger group comprised of 70 students and 3 teachers. The result analysis of the media validation test is based on 26 Likert scale questions using SPSS tools and two open-ended questions. The result is valid with a significance <0.05 with a Cronbach’s Alpha value of 0.877> 0.05 (Reliable).
Study on network management systems by using Docker Kubernetes
Authors: Rohadi E , Rahmad C , Chrissandy F , Amalia A
Published: March 2021

The development of web based applications is grow up rapidly along with technological advances recently. Therefore the user of web and mobile applications are also increase. So applications can be accessed using a variety of device such as computer, mobile platform, notebook, that’s why ease in the process of deployment of web applications to the server is needed. The previous monolithic technology, the deployment process requires a large amount of resources, scalability, system availability and computational service capabilities. Recently, we present container technology is the solution to dealing large computing services with high traffic, container technology system is created one with libraries, application and configuration files and everything needed. The container can be managed with kubernetes to makes it easier for administrator to control management data efficiently. In this study the retrieval of data is taken from QOS parameters consisting of: throughput, response time. Data from the test will determine the reliability of docker kubernetes based container technology. The suggested result is to compare the QOS multi container process with a single container or virtual private server, deployment and provide an alternative solution to make it easier for administrators to manage containers using the Kubernetes more easily and efficiently.
Analysis validation of gamification fashion photography
Authors: Wibawa S C , Dermawan D E , Martiningsih N G A G E , Mashudi M , In C
Published: March 2021

The objectives of this study are: 1) developing game interactive for learning photography in fashion, 2) analysis validation of the application. Development of game using the R&D method with Hannafin and Peck Adaptation, which includes several stages, namely needs analysis, design, development, and implementation. In this case, the game can be applied in fashion education student who takes related computer courses in fashion photography. The result of this research are applications about the game of learning how to photograph and the object in Fashion. Analysis validation such as validation value for the aspect of media display obtained 94% results, for the programming aspect it obtained a validation result of 90%, while for the benefit aspect it obtained a value of 90% for the usefulness of media. Based on the average of all components of the instrument question obtained a percentage of 92%. It can be concluded that the media used can help replace the role of lecturers in learning, and students can play the role of a fashion photographer.
Virtual fitting room technology in fashion design
Authors: Werdayani D , Widiaty I
Published: March 2021

The presence of technology is inevitable is several fields, including in fashion design. This paper identifies technology-based virtual fitting rooms. All types of technology-based virtual rooms were identified; offline, online, web-based, mobile-based. It has been found that some of the most commonly used virtual rooms in fashion design involves such technologies as 2D fashion design, 3D fashion design, digital communication, e-commerce, internet-based, ICT-based, e-magazines, and e-books. It has also been inferred that virtual fitting rooms are starting to change conventional ones.
Development of creative economy geospatial database using an open source GIS program
Authors: Fardani I , Agustina I H , Yuliandra M A D
Published: March 2021

Creativity is the principal capital in facing global challenges. In developing the creative economy, several qualified Human Resources (HR) with innovative power and high creativity are required. In many regions, they do not have a geospatial database that contains the potential of this creative economy. This research aims to develop a creative economy geospatial database GIS using open-source programs related to tourism activities in the Bekasi Regency, Indonesia. The first step was to classify the potential of the existing creative economy, then design the geospatial database that could accommodate the potential of the creative economy and visualize the data in maps. From the results of the study, it appears that in the Bekasi Regency, the most dominant subsector is the culinary sub-sector. If we see from the distribution of existing subdistricts, the Cikarang subdistrict has the most creative economic potential among other subdistricts, and with visualization of geospatial database GIS, it can support the management of creative economic data.
Testing MARBEL: A interactive game for introducing professions to early childhood
Authors: Ningsih M P , Mubaroq S R , Prasetya E R , Alamsari F
Published: March 2021

Software technology developing rapidly influences developments in various fields, including in education. The use of game as a learning tool is also carried out in early childhood learning. Children can learn in a fun way using games. This study aims at analysing the Marbel mobile game as a learning tool in early childhood. Particularly, it is on the theme of profession to introduce various types of professions. The study was conducted by observing the game, being tested using a heuristic and an educational criteria test. The results show that the Marbel Profession game can be used as an early childhood learning tool, can stimulate early cognitive development such as jigsaw puzzles, guessing pictures, guessing pictures quickly, and changing colours.
The design of electronic book for batik learning
Authors: Achdiani Y , Widiaty I , Ilahi R , Ningsih M P , Mubaroq S R
Published: March 2021

This study aims to design an electronic book (e-book) used in batik learning in a Vocational High School. The design of the e-book is made on the web based application platform. The design of the e-book applies the Software Development Life Cycle (SDLC) method. The interaction model developed in the application is a user interface in the form of a frontend. The e-book User Interface in the form of a Codeigniter framework is based on the Hypertext Pre-processor (PHP). All content and databases are stored in the server. The results of the design include digital application of borrow-read-return procedures. In content, material about West Java Batik is accessible in three features, namely the pages of digital book room, audio book room, and video book room. The consequences of designing this e-book indicate the need for adequate internet network availability and the need for special administrator to constantly update the contents.
Implementation of Vehicular-Visible Light Communication for motorcycle platooning
Authors: Darlis D , Priramadhi R A , Joni K F M
Published: March 2021

In this research, we explain the use of visible light communication technology for communication systems between motorbikes, where so far motorcycle lights have only been used for lighting or speed markers. But now, with visible light communication we can use it as a medium to communicate between vehicles, especially motorbikes. Visible light communication (VLC) is a communication system using visible light as an information carrier. VLC has many advantages including in terms of safety, speed, and ease of application to the user to send various types of information including digital data such as text and images. The VLC transmission section will use the LED motorcycle headlamps to send information to the receiver i.e. Light-to-Voltage Sensors are mounted on the back of a motorcycle when several motorbikes are in convoy or platooning. This study describes the use of VLC Vehicle-to-vehicle technology so that motorbikes can communicate with each other so that the motorcycle itself can adjust the distance with other motorbikes in front of him without being under or semi-controlled by the rider. From the results of measurements with the selected transmitter and receiver system, communication between motorbikes can be done up to 130 cm during the day and 180 cm at night. The potential of this technology is that it can truly support communication systems between vehicles such as self-driving motorcycles in the future.
Analysis of digitizing archive applications to reduce paper usage
Authors: Bhakti D D , Hamdani N A , Deni I , Maulani G A F , Sugiarti I S
Published: March 2021

Various data and information in the form of documents will accompany every activity in an institution. The existence of a reliable management to create, store, record, distribute, and maintain documents is needed to generate dynamic information traffic. In addition, the application of document processing can reduce the use of paper in every activity of an institution which will indirectly reduce excessive forest exploitation. The purpose of this research is to analyse digitizing archive application as an integrated archive management application to reduce the use of paper in every activity of an institution. Qualitative descriptive methods was used as a research methodology. The result of this study based of the analysis of the digitizing archive application that has been done in terms of data and procedures can be concluded that digitizing archive application can reduce the use of paper as a document in various institutional activities.
Designing and analysing electronic student worksheet based on Kvisoft Flip Book Maker for elementary school student
Authors: Ladamay I , Kumala F N , Susanti R H , Ulfatin N , Wiyono B B , Rahayu S
Published: March 2021

This study aimed at designing Electronic Student Worksheets based on Kvisoft Flip Book Maker on thematic learning for grade III and IV of elementary school as well as analysing its effectiveness. The developed of Electronic Student Worksheets was analysed with descriptive analysis methods with observation sheet instruments adjusted with criteria of Electronic Student Worksheets. The worksheet criteria consisted of content, language, cognitive level, features, and utilities. The analysis results show that the developed Electronic Student Worksheet is satisfactory in terms of content and language. However, in terms of cognitive aspect, it still covered in the Low Order Thinking Skill, particularly at the C1-C3 level. In addition, the language used is suitable, as well as the aspect of features and utility. For the future development, it is important to develop an instructional media that covers HOTS of student to stimulate student’s ability in terms of reasoning and problem-solving. In addition, it is necessary to develop electronic student worksheet that have interesting features and easy to use to help and motivate students learning. The implication of this research is that appropriate evaluation instrument will be able to develop students’ thinking abilities and interests in learning.
Texture histogram features for tea leaf identification using visible digital camera
Authors: Iswanto B H , Alma A
Published: March 2021

This paper presents our study on the statistical texture histogram features to identify fresh tea leaves using a visible digital camera. For this purpose, the tea leaves were shouted every three days using the camera with 8 different orientations, a multiple of 45 degrees. Features of the images were extracted using the method to collect the feature dataset. Therefore, Principal Component Analysis (PCA), LBGU-EM clustering method, and Fisher’s Linear Discriminant Analysis (LDA) were applied to analyse the tea leaves based on the dataset. Experimental results using 320 image samples of four different categories show that the proposed method generated the image features that can significantly distinguish the fresh tea leaves categories.
Designing mobile application gamification for tourism village in Indonesia
Authors: Prakasa F B P , Suyoto S , Emanuel A W R
Published: March 2021

Tourism in Indonesia is one of the contributing factors for income for the country, especially in the non-oil and gas sectors. Also, Indonesian tourism is expected to help the economy of the community, especially villages. Because of this reason, a tourist village was created. However, in its development, tourist villages are still experiencing some challenges. Among them is a stagnation in the development of attractiveness, weak tourist competitiveness, limited human resources, and lack of promotion. All of these challenges can be solved by using the gamification method. The purpose of this study is to propose a prototype of a mobile application for a tourist village using gamification. Gamification uses motivation in its application, and this method can have a beneficial effect on the tourism sector. These effects include raising brand awareness, loyalty/repeat visits, and enhancing tourism experiences. Therefore, in this study, a prototype mobile gamification application design will be made for tourism villages, especially in Indonesia. The design is performed based on the needs of a tourist village and based on the responses of several respondents.
A review on Recommender Systems for course selection in higher education
Authors: Lynn N D , Emanuel A W R
Published: March 2021

Recommender systems are widely used in many fields. These systems work by recommending a personalized list of items to users based on their interests and thus helping users to overcome excessive information offered to them. For users such as students, selecting the right courses is a very challenging task while joining a new academic level. Picking the wrong courses may affect a student’s academic life as well as their future career. This paper aims at exploring the use of recommender systems to assist students in selecting courses that correspond to their abilities and interests. The results from this review showed that the Hybrid recommendation approach/system could be the best method to help students to choose the right courses in preparation for their future careers.
Logical framework for hate speech detection on religion issues in Indonesia
Authors: Darmalaksana W , Irwansyah F S , Sugilar H , Maylawati D S , Azis W D I , Rahman A
Published: March 2021

Hate speech is a hot issue in social media era, including in Indonesia. This paper presents the concept of logical framework to analyse and detect whether the content from text in social media contains hate speech on religion issues or not. This paper use literature review to propose the logical framework for hate speech detection. We propose the text mining as a part of data mining technique that combine with sequential pattern mining to detect hate speech from social media with text data. Based on the proposed logical framework to detect hate speech from social media, it is possible and recommended to be implemented in the future research to prevent hate speech distribution which can cause disunity and commotion in the community.
Implementation of Multi-Attribute Utility Theory (MAUT) method for selecting diplomats
Authors: Taufik I , Alam C N , Mustofa Z , Rusdiana A , Uriawan W
Published: March 2021

Diplomatic relations between countries increasingly show how important the meaning of relations between these countries. Representatives are needed in order to establish cooperative relationships in several fields such as culture, politics, and education. The Ministry of Foreign Affairs is expected to recommend objective representatives to be placed as foreign diplomats. Finding suitable representatives and the number of representatives to be dispatched in accordance with the criteria and rules that apply in the foreign ministry becomes complicated. With this objective and value-weighted recommendation made, it is easier for superiors in the ministry to make representative selection. The method used is the Multi Attribute Utility Method (MAUT) which can make effective and specific selections. Based on the results of testing of 50 sample data to calculate the selection of foreign diplomats using the MAUT method the results were 94%.
Geographic Information Systems for web-based maternity centers
Authors: Mulyani A , Maylawati D S , Kurniadi D , Putri R D
Published: March 2021

One of the benefits of the geographic information system (GIS) is that it is a tool for capturing, storing, and displaying data related to the approximate position of the earth. The delivery place is one of the critical areas that considered urgent to deal with the delivery of pregnant women. With this information system, it expected that the public could quickly obtain information on the distribution of the nearest birthplaces, profiles of medical personnel such as doctors, midwives, and nurses as well as available facilities. The methodology used in this study is the Rational Unified Process, with stages: inception, elaboration, construction, and transition. The results of this study are web-based GIS applications to search for distribution of maternity places to facilitate the community in finding anywhere the distribution of midwives, their location, and facilities in the midwife’s area.
Web-based geographic information system for mapping religious tourism object
Authors: Supriatna A D , Tresnawati D , Kurniadi D , Cahyana R
Published: March 2021

Based on the notes issued by the Garut Regency Tourism Office explained that the interest of the community to visit religious tourism objects in the Garut district region is relatively high. Attractions visited are generally in the form of a sacred tomb. Almost all districts in the Garut district have graves that can be used for pilgrimage. However, the visit of new tourists is limited to a few regions. The tourists generally come from outside Garut regency, which is spread throughout the provinces in Java. The limited information possessed by potential tourists, as well as the dissemination of information by related parties, can be the cause of the spread of the purpose of the visit to be limited as well as the number of tourists interested in visiting. One alternative solution that can be done by the Garut regency government, in particular, is by designing a geographic information system mapping web-based religious tourism objects. The research aims to design a geographic information system mapping web-based religious tourism objects that presents regional mapping that can explain the state of infrastructure and public facilities available on these attractions. The system design method used is object-oriented methods, namely the Rational Unified Process, which consists of several stages, including inception, elaboration, construction, and transition. So it is expected that the application of this system can increase the number and spread of tourists towards tourist destinations.
Development of information system based on mobile stock management in outlet
Authors: Rahayu S , Gunadhi E , Ghipari R , Fatimah D D S
Published: March 2021

Garut is a regency in West Java that has various potentials that can be developed. Now many industries have been established. The food or culinary industry is one of the special characteristics of Garut Regency. One of them is a company engaged in the dodol food industry, PT. Herlinah Cipta Pratama, which has several outlets in terms of consignment delivery of dodol. Problems for the delivery of dodol occur because of the shipping process by PT. Herlinah Cipta Pratama which does not match the stock management at the outlet. Therefore, it will need a system that can manage dodol stock in outlets that can be set by PT. Herlinah Cipta Pratama. With the Unified Software Development Process design method with the stages of Requirement, Analysis, Design and Implementation. The results of this study in the form of dodol stock information system design at PT. Herlinah is expected to be able to help the problems in the stock management with the aim that both parties can know the consignment process.
A literature review: Augmented reality-based learning in Sundanese Siger Bridal Make-up
Authors: Nursetiawati S , Siregar J S , Pursari R
Published: March 2021

Augmented reality is a technology that is being developed and aimed at advancing and facilitating education. Technological progress, encouraging technology-based learning media needs to be studied first theoretically, before being applied to the learning process. This research is a literacy study, which sees augmented reality as supporting the Sundanese Siger Bridal Makeup course. The purpose of this research is to maximize the use of technology in the learning process and to see the effectiveness of augmented reality, especially in vocational learning. Also, this research is intended to analyse the extent to which technology is important as support in learning. The results of the study show that (a) Technology today is the main key in teaching and learning activities, (b) Augmented reality, is considered attractive so that it can increase the focus of students during the learning process, (c) selection of appropriate educational technology, in cosmetology Sundanese Siger bride, able to increase student understanding of the material being taught.
Electronic module of geometry based on inquiry
Authors: Triwahyuningtyas D , Suastika I K
Published: March 2021

This research aimed at examining the influence of inquiry-based e-module for geometry lessons on the learning outcomes of college students of the elementary school education department. This research employed an experimental approach by using geometry e-module based on inquiry to find out and understand geometry concept. This study used a single-subject research approach involving students of Elementary School Education Department in Kanjuruhan University Malang. The data analysis technique in this study was used quantitative and qualitative descriptive procedures. Geometry e-module based on inquiry consisted of two topics, to be specific: two-dimensional and three-dimensional shapes. The results of this research indicate that the college students could determine the attributes of shape such as circumference and areas of two-dimensional shapes as well as nets, face areas, and volume of three-dimensional shapes. Therefore, this further confirms that geometry e-module based inquiry could be applied as an electronic instructional media for college students.
Experiences of Pearson formula in analysis regression
Authors: Maryati I , Sumartini T S , Sofyan D
Published: March 2021

Regression is a statistical analysis method used to see the effect between two or more variables. The benefits of regression analysis are used in almost all fields of life, both in the fields of economics, industry and employment, history, government, environmental sciences, etc. In this article reveals what assumptions must be met for an ideal regression to be obtained. How it is applied in real life can be demonstrated in this research.
Virtual laboratory of science on symbiotic material for primary school students
Authors: Kumala F N , Sugiarti I , Rahayunita C I , Shaleha P R , Hudha M N
Published: March 2021

Practical activities in learning science often experience constraint in terms of tools, materials, places and time. These constraints hinder the acquisition of facts, concepts and theories of science. The purpose of this study was to develop a learning media in the form of virtual laboratory to teach Science (symbiotic). In developing virtual laboratory media, the steps that should be followed include defining problem, designing system, programming, testing, operational and maintenance and evaluation. This media is valid and easy to be used in learning science at primary school. The instruments used in this study were observation and questionnaires. Four grader students were involved as the subject of the study. The results of expert validation and practitioners indicated that this media is feasible and can be used in learning science. Virtual laboratory learning media enable to visualize abstract concepts of substance or events into more concrete concepts for primary school students. Interesting and concrete learning media can develop students’ interests in learning science.
Implementation of Rivest Cypher 4 algorithm in Security Assertion Mark-up Language protocols on Single Sign-On services
Authors: Slamet C , Syaripudin U , Kaffah F M , Tiasto B E
Published: March 2021

Single Sign-On (SSO) is an authentication service that allows users to use a set of credential data to access multiple applications. The SSO can be implemented using Security Assertion Mark-up Language (SAML) which is recognized as a framework or standard for sending open messages that allow identity and security information to be shared to each entity. Credential data sent over the network enable unauthorized users to capture the data and this will be fatal since the data can be used to access all applications in the SSO entity. This study aims to propose a credible data security approach that is reliable so that the data is not easily read by unauthorized users even with the dictionary attacks. This security method is performed using the Rivest Cypher 4 (RC4) algorithm. This study is resulting in two major phenomena, (1) the utilization of the RC4 algorithm on SAML in SSO services has proven to be an effective data security approach for dictionary attacks, (2) the formulation of the RC4 algorithm on SAML has proven to not interfere with SSO services in the user authentication process.
Worked example using S-Note application in carbon cycle study
Authors: Aziz D N , Rahmat A , Amprasto A
Published: March 2021

The carbon cycle is the way in which carbon atoms, in various compounds, circulate through nature. The S-Note application has a handwriting mode feature that can be used in drawing object. Worked example are study approaches that provide step by step solutions for solving problems in a study. Worked example can reduce intrinsic cognitive load and germane cognitive load. The purpose of this study is to obtain information about worked example using the S-Note application in carbon cycle study. This research method is descriptive. The S-Note application is used in making carbon cycle images. The carbon cycle drawing consists of nine steps. The results of carbon cycle images are images that have JPEG format. The results show that worked example using the S-Note application can help study carbon cycles and show low categorization for intrinsic cognitive load, and very low categorization for germane cognitive load. Conclusion worked example using the S-Note application can reduce intrinsic cognitive load and germane cognitive load in carbon cycle study.
The management application design of digital archiving letters
Authors: Maulani G A F , Hamdani N A , Bhakti D D , Denni I
Published: March 2021

Demands for speed and reliable access to services in the management of archive activities are the demands of today’s industry and business. Managing and controlling documentary documents is a vital business process because it is related to the accessibility of company data and information. This study aims to design and create a digital mail-based archive management application. The method used in this research is a systematic approach in the design and manufacture of software with the RUP (Rational Unified Process) method with Unified Modelling Language (UML) modelling. The results of this application are expected to help management in archiving services more effectively and efficiently.
Development of augmented reality as physics learning media on electric concepts
Authors: Ismail A , Rahayu G , Putera M A K , Aghniya N N , Gumilar S
Published: March 2021

The 21st Century learning requires technology in the learning process, including physics learning using abstract concepts. Furthermore, many teachers do not ap-ply technology in the classroom because of the teacher’s limitations in making learning media. The purpose of this research was to create an augmented reality-based learning media that can be used in classroom learning. The research method used in this research was Research and Development. The development procedure consists of a preliminary, design, development and implementation. In the preliminary study phase aims to analyse the needs of the world of education so that the direction of design and development to be made clearer and more precise. In the design and development phase, the researcher designed and created an augmented reality application and developed this augmented reality from a marker card to a real object marker. In the development stage augmented reality was judged by physicists and experts in the field of technology. After being judged, the application made was implemented and tested on 10 types of devices with different OS and implemented in classroom learning. Based on the test results, it can be concluded that the augmented reality application that has been made with successfully tested using several different devices and validated by experts and de-cleared eligible or good for use.
Designing loss event database using evolutionary prototyping model to perform bank operational risk management identification process
Authors: Hamdani N A , Yulianto E , Maulani G A F
Published: March 2021

Many banks in Indonesia have failed in the process of transformation towards their vision, due to a lack of awareness in managing risk and not growing a risk-based culture. The external and internal environment of the banking system is experiencing rapid development which will be followed by increasingly complex risks for banking business activities. Loss Event Database is a solution to perform the function of identifying and measuring Operational Risk Self-Assessment. The research method used to design and build a Loss Event Database refers to the Evolutionary Prototyping model where at each stage, the involvement of developers and users is intensely carried out. The implementation of Operational Risk Self-Assessment through the development of a Loss Event Database using the Evolutionary Prototyping model is able to reduce the operational risk rating from the Moderate to Low to Moderate level, meeting the requirements of good corporate governance in accordance with applicable regulations and best practices in the banking world.
Comparison between the chiller air cooled with the variable refrigerant flow technology for high building air conditioning system
Authors: Arifin Z , Wahyu W
Published: March 2021

Energy efficiency is one of the emerging issues of technical and engineering studies recently. Along with the development of massively high buildings, the need of energy saving increases globally. The largest energy usage in buildings is the air conditioning system. Its energy consumption and energy efficiency are significantly affected by the type of the technology used. Therefore, this study compared the chiller air cooled with the variable refrigerant flow technology for high building’s air condition system. Technically the analysis was carried out by using the Hourly Analysis Program E-20 software as a tool to calculate the amount of electrical energy consumption at 15 floors office building’s cooling system for 6 months. Financially the comparison of both technologies was conducted by a total annual cost analysis. This study found that the electricity consumption of the chiller air cooled is lower than the variable refrigerant flow system. Besides the total cost of the chiller air cooled is more efficient than the refrigerant flow technology. The further empirical research is recommended for other different type of buildings such as hospital, factory plant, school or university, airport and so on.
Analysis of the power transformer condition assessment in PLN Western Java Transmission unit
Authors: Arifin Z , Utami N Y
Published: March 2021

Transformers are critical equipment of the electrical power supply system and the most expensive asset in the electric power transmission network. Therefore, power transformer condition assessment method is needed to determine the actual condition of power transformer on operating. Indeed, they are several methods of condition assessment for power transformers have been implemented. The transformer data is divided into different levels and parts, so multi-parameter analysis is carried on both by direct condition data and by indirect computing history data. Some method use only one-step process, while others through many stages. This paper proposes a power transformer condition assessment with three stages. First step are Health Index and Susceptibility. Second step is Probability of Failure, that is combination between Health Index and Susceptibility. The last stage is Risk Based Priority as a result of combining Probability of Failure and Criticality Level. The outputs of condition assessment are analysis lifetime prediction, abnormality, recommendations for next action and determine maintenance or replacement priorities. This study has investigated 303 units of power transformers in Western Java Transmission unit. The result of study is useful for the utility company to improve their transformers asset quality.
Harmonic mitigation in a single phase inverter
Authors: Rahardjo I A , Djaohar M , Subekti M , Kamaruddin E
Published: March 2021

This study aims to mitigate harmonics in a Single Phase Inverter in the design of inverter products with harmonics filters which can later be used as a basis for consideration of the quality of electricity on the harmonics side for the use of AC load power with power plants sourced from DC generators using an inverter. An experimental electrical circuit was configured by giving nonlinear loads effect to determine the number of harmonics that appear. Then design filters on the circuit to mitigate the harmonics that occur in accordance with IEEE 1531-2003 standard. The greater the non-linear loads, the greater the voltage and current harmonics were produced. To mitigate the harmonic value due to non-linear loading with a tolerance of 5% to conform with IEEE 1531-2003 standards, a non-linear load of 60 W need to be fitted with a filter of an inductor 6.705594 Henry and a capacitor 1.50121990 Micro Farad in the inverter, a non-linear load of 104 W need to be fitted with a filter of an inductor 4.680568 Henry and a capacitor 2.15045863 Micro Farad in the inverter, a non-linear load of 146 W need to be fitted with a filter of an inductor 3.523966 Henry and a capacitor 2.85603348 Micro Farad in the inverter, a non-linear load of 187 W need to be fitted with a filter of an inductor 4.012541 Henry and a capacitor 2.50837720 Micro Farad in the inverter, a non-linear load of 230 W need to be fitted with a filter of an inductor 3.455178 Henry and a capacitor 2.91347361 Micro Farad in the inverter, a non-linear load of 268 W need to be fitted with a filter of an inductor 3.071107 Henry and a capacitor 3.27678662 Micro Farad in the inverter, a non-linear load of 311 W need to be fitted with a filter of an inductor 2.703245 Henry and a capacitor 3.72269662 Micro Farad in the inverter, a non-linear load of 351 W need to be fitted with a filter of an inductor 2.372288 Henry and a capacitor 24306264 Micro Farad in the inverter, a non-linear load of 390 W need to be fitted with a filter of an inductor 2.151711 Henry and a capacitor 4.67803044 Micro Farad in the inverter, a non-linear load of 429 W need to be fitted with a filter of an inductor 1.601979 Henry and a capacitor 6.28333291 Micro Farad in the inverter.
Performance analysis of PID control in DC Brushless motor using trial and error method
Authors: Sekarsari K , Tata T
Published: March 2021

This research presents an overview of the performance of the PID control technique applied to the Brushless DC motor to regulate the speed using the Arduino microcontroller and LabView software. Brushless DC motors are chosen because they have high efficiency both in performance and longer durability. Kp, Ti and Td parameter tuning techniques use the Trial and error method and the results obtained from the value of Kp = 0.050, Ti = 0.001 and Td = 0.001 indicate a minimum error compared to controls without using PID. The percentage of overshoot still exists but the rise time and settling time indicate a faster response speed to the setpoint.
Analysis of electrical energy efficiency using LED in the bank building (Study case in Bank X)
Authors: Parjiman P , Rahardjo I A , Subekti M , Sunawar A
Published: March 2021

This study aims to analyse the efficiency of electrical energy by utilizing LED lights in the bank building in replacing fluorescent type lamps which can later be used as a basis for consideration of energy efficiency. This research was conducted using a qualitative description method by observing and measuring initial conditions, then conducting an analysis to calculate efficiency. To carry out energy efficiency analysis begins with an ideal plan for the need for lighting intensity according to the standard using LED lamp. Research activities began by collecting data covering the location and specifications of the building, detailed drawings in the form of ass built drawings related to electricity, lighting, and lighting equipment’s throughout the building. Then measure lighting intensity and illumination power. Measurement data were analysed against SNI 6197-2011 standard and carried out a plan to replace existing lamps using LED type lamps as energy efficiency. Then draw conclusions about energy efficiency by replacing LED lights. Based on data analysis of lighting intensity that there is 104 rooms or 55.32 % of 188 rooms measured that have not been accord to standard SNI 6197-2011. And analysis of illumination power that there is 55 rooms or 29.26 % of 188 rooms measured that have not been accord to standard SNI 6197-2011. If all of TL fluorescent lamps are replaced by LED lamps, and some rooms that less illumination power are improved the with LED lamps, so the total efficiency of electrical energy in the Bank Building is approximately 18 (eighteen) percent.