bluuebunny/crossref_metadata_2025 huggingface dataset:
Strategy for increasing tender success in Jakarta’s e-tender construction project
Authors: Budianto D , Rarasati A D , Nursin A
Published: March 2021

Electronic tender or e-tendering system in the procurement of goods and services in Indonesia from the perspective of the government is considered to be a tool to realize good governance and public services, because it will increase cost efficiency, effectiveness, faster cycle times, increase package transparency tendered work, provides better public monitoring, promotes fair competition and increases government accountability. However, in the implementation of e-tendering for construction projects, many tenders have failed. This research aims to identify the factors that cause tender failures and develop strategies to increase the success of e-tendering for construction projects in Jakarta. Identification of the factors causing the tender failure was obtained from a literature study and these factors were validated by experts. Questionnaires were distributed to project owners, tender committee, and contractors who have participated in e-tendering system for public construction projects in Jakarta. From the data obtained, statistical analysis using validity test, reliability test, comparative analysis and descriptive statistical analysis used to obtain factors that cause e-tender failures. Proposed strategies for increasing e-tender success for construction projects were obtained from literature studies and expert judgment.
The influence of transactional leadership and soft skill project manager to project success factor in the Indonesia construction industry
Authors: Mufaricha L , Rarasati A D , Soeparto H G
Published: March 2021

The Indonesian government in the next 5 years will focus on infrastructure development and also human resources. The need for construction human resources is huge, considering that infrastructure development, especially for the new National Capital, can be implemented well. In the field of building construction, project implementation requires not only good scheduling, knowledge and technical skills but also human resource management. This is because the project organization involves many stakeholders, one of which is the project team. In large-scale projects with high complexity require project manager skills in leading projects to achieve goals. Leadership is a part of skill competency that is classified as soft skills for project managers. And the transactional leadership style is part of the leadership that is widely applied in Indonesia. Therefore, the authors examine the effect of transactional leadership and soft skills on project managers on the factors that influence project success in Indonesia. This research using questionnaires and addressed to construction companies in Indonesia and processed by SEM (Structural Equation Modelling) - PLS method.
The combination of green construction method and the use of tabas waste as a substitute for cement
Authors: Triswandana I W G E , Armaeni N K , Jawat I W
Published: March 2021

Green construction is a construction process that carries the concept of sustainability where the construction process can reduce environmental degradation by utilizing existing waste in the surrounding environment, contributing to reducing the level of environmental pollution, and being able to reduce waste from the construction itself. The use of tabas as a substitute for cement is one of the implementations of the green construction concept itself, where the waste of rock that produced by the temple stone craftsmen ranges between 20%-30%, which utilization is not optimal, so it often becomes waste that accumulates in the production area so that it can damage the environment due to the compounds of the tabas waste. The use of rock as a substitute for cement both reducing the amount of cement usage which produces 8% CO2 emissions where the percentage is the third-largest in the world even far beyond aircraft fuel. From the results of the study using tabas rock to replace 10% of the volume of cement in the mixture, obtained a concrete strength of 22.21 MPa so that it meets the criteria as normal concrete. With the combination of green construction methods using a combination of tabas concrete and metal deck floor plates, in terms of the cost of making concrete are obtained savings by 20.48% and a reduction in the amount of construction waste originating from formwork by 35.96%.
Study of Fly Ash Plastic (FAPET) as alternative lightweight aggregate in concrete
Authors: Sambowo K A , Apriyanto F , Prihantono P , Sumarsono R A
Published: March 2021

Plastic waste is identified as non-biodegradable material that is harmful to the environment. PET is one of the most well-known types of plastic used for food packaging that usually plastic waste be found in huge amounts. This paper takes advantage of PET plastic waste from the water drinking cup to be blended with fly ash to produce a lightweight aggregate called FAPET. All the properties of FAPET were significantly better than pumice as the control sample during the experiment such as water absorption, compressive strength and abrasion value of 0.5%, 17.4 MPa and 28.55% respectively. FAPET was derived from the double blending process of PET with fly ash with the composition of PET and fly ash was 1:3. The experiment conducted was partial until the full replacement of pumice as a lightweight aggregate with FAPET to establish waste-based lightweight concrete. Modulus of elasticity and compressive strength resulted from 100% replacement using FAPET were 31,706 MPa and 23,64 MPa that equalled to normal concrete strength. The utilization of FAPET is concluded to be successful as an alternative lightweight aggregate for structural use of lightweight concrete.
Changes in spatial patterns and the availability of social facilities in urban settlements due to reactivation of the railroad tracks in Garut
Authors: Susetyaningsih A , Zhafirah A , Cahyana C , Farida I , Nanang N
Published: March 2021

The train is one of the modes of mass transportation that is more effective in overcoming traffic congestion. Apart from its economic benefits, the activation of a long-dead train track has various impacts that cannot be ignored. This study evaluates the impact of reactivation of the Garut railroad on 1) changes in the pattern of spatial settlements along the railroad tracks, 2) identifies the need for lost social facilities on the railroad tracks. Most of the land owned by PT KAI in the city of Garut has experienced changes in land use. Data is collected through surveys and interviews of affected respondents. Reactivation of the railroad tracks caused changes in spatial settlement patterns. Empty land along the railway lines became a magnet for the growth of new settlements, which were then followed by various social infrastructure. There is a constructive relationship between the community and space. Land acquisition along the railroad reactivation track in the Garut sub-district of the city has led to the loss of settlements, markets, community meetinghouses, and basic health service buildings for posyandu. Not all lost social facilities can be rebuilt because of constraints in the provision of land.
Development of prototype e-learning mathematics learning tools using Moodle
Authors: Kamaruddin E , Wijaya Y S , Avianti R A , Rahardjo I A , Sunawar A
Published: March 2021

E-learning is very supporting the implementation of learning, because it uses teaching materials that are independent, so it can be accessed at any time. E-learning can improve students’ absorption of subject matter, active student participation, and the ability and quality of information that when using ordinary devices will be difficult. If carefully designed, e-learning can increase levels of learning interactions. Unlike the case with conventional learning, not all students can ask questions or express their opinions in the discussion, because the opportunities are very limited. Based on these assumptions, it is necessary to conduct a study of the e-learning prototype development strategy. Specifically, the purpose of this study was to develop a prototype of an electronic learning device using Moodle. This research is Research and Development with the Four-D development model. The results of the study were in the form of a prototype e-learning CASE-based Mathematics learning device. In conclusion, the prototype can be developed into a complete mathematics learning media.
Video development for make-up puff pastry
Authors: Pambudi A T , Anggraeni A A
Published: March 2021

Generation Z has a preference for individual learning using information and communication technology. Generation Z prefers digital audio-visual media to verbal media. The study aimed to develop a demonstration video in the subject of make-up puff pastry for Pastry and Bakery course and assess the video feasibility. This study was a research & development (R & D) approach using 4D (define, design, develop, and disseminate) models. Problem, student, and curriculum analysis was performed in the define stage. Video scriptwriting and the production team selection were performed in the design stage. Develop stage consisted of video shooting, video editing, video revision, and assessment. The shooting was accomplished using Sony A6000 16-50 mm camera, Bestluck New Pro F600 lighting with ellipsoidal reflector, Libec 650EX tripod, and Zhiyun Crane V2 stabilizer. Voice was recorded using Boya Clip-on wireless microphone. The audio was edited using Adobe Audition 2017 and the video was compiled using Adobe Premiere pro CC 2017. In the disseminate stage, the video was uploaded to YouTube channel Boga UNY. Based on the feasibility assessment by 2 material experts, a media expert, and 31 potential users, the video was considered very feasible as learning media.
Developing learning video of making mango sorbet for agriculture product processing course
Authors: Anggraeni A A , Setiawan W A A
Published: March 2021

Generation Z uses technology frequently and demands learning that is individualized, engaging, digital, and visually based. They prefer learning videos to learn about the product making process. The research objectives were to develop the video of making mango sorbet for the Agriculture Product Processing course and evaluate the feasibility of the video. This was a research & development (R&D) study using 4D models (Define, Design, Develop, and Disseminate). The video was captured using Sony NX100 camera and Kino Flo 6-bank lighting. The presenter and voice-over dubber’s sound were recorded using Boya BY WM8 wireless microphone. The video was edited by Adobe Premiere Pro CC 2017. The video had a duration of 14 minutes 29 seconds with mp4 format. The video consisted of the opening section, the content section, and the closing section. The opening and closing section were delivered by the presenter. The content section was demonstrated by an actress and voice-over dubber. The video feasibility was evaluated by 2 material experts, a media expert, and 30 students of Vocational High School (VHS) 1 Cangkringan. The data were analysed descriptively. According to the feasibility evaluation, the making mango sorbet video was considered to be very feasible to be utilized as a learning media.
Implementation of Moodle e-learning in Mathematics
Authors: Kamaruddin E , Sulaeman E , Nurita L , Ningtyas L D
Published: March 2021

The rapid development of science and technology provides opportunities for computer experts to create attractive, interactive application programs. As the 2013 curriculum takes effect on the characteristics of student-centered learning, various electronic learning media have developed to improve the quality of education. One of the interactive media produced is e-learning based on Moodle for Mathematics. Moodle is a learning management system that is designed using web-based applications and provides online learning services. Moodle is equipped with three main elements in the learning process, there are users like teachers, users as students, and the subject matter. Together Moodle can be designed distance education and a modern and productive learning environment. Moodle can build students’ creativity in doing problem-solving, including in solving mathematical problems. This will create HOTS for students. Based on these assumptions, it is necessary to conduct a study regarding the implementation of Moodle e-learning in Mathematics. The purpose of this study is to apply Moodle e-learning to the material of linear equations. This research is Research and Development. The results showed that Moodle could improve students’ high-level thinking skills in solving mathematical problems. In conclusion, the development of Moodle e-learning can improve mathematics learning outcomes.
The implication of Android-based mobile learning on housekeeping subject
Authors: Hasanah U , Doriza S , Rahmadhani R
Published: March 2021

The purpose of the study was to increase knowledge about the term housekeeping through Android-based learning media for vocational students in the Hospitality Accommodation Department. This type of research is quantitative with a true experiment approach and research design pre-test post-test control group design. This research uses an assessment of expert judgment and a sample size of 15 students for the experimental class and 15 students for the control class. The prerequisite test in this study uses the normality test and the homogeneity test. The calculation results show that the data are typically distributed, homogeneous. Hypothesis testing using the independent t-test, at a significance level of 5% obtained tcount> ttable of 3.759> 1.699, shows that an increase in terms knowledge in the field of housekeeping before using mobile learning media and after using mobile learning media.
Augmented reality in nutrition education
Authors: Paramita A , Yulia C , Nikmawati E E
Published: March 2021

This research synthesizes findings of studies on augmented reality in nutritional education as a solution to the nutrition knowledge problem. Journals examined from 2010 to 2019. This paper focuses on the issue of nutrition and augmented reality knowledge as one of the media solutions for nutrition education and how the influence of providing nutrition knowledge through augmented reality. With the presence of nutrition knowledge through this Augmented Reality users of various age ranges can use it and complete a whole set of programmed, and users can change the eating behaviour and diet, users are interested and prefer to learn nutrition, and are proven to provide convenience and minimize boredom in learning the material. The results of the test received a very good rating which assessed that Augmented Reality application is very useful and makes users more quickly understand and remember the material in nutrition learning. We expect the number of positive responses from the use of augmented reality in nutrition education to be more developed such technology to support the improvement of education and nutrition behaviour of the community.
Implementing web-based digital media in online courses
Authors: Ulfiya F , Rinekasari N R , Ningsih M P
Published: March 2021

Online courses are becoming a trend in this era. Consequently, advanced technology should be present to support the trend. This article aims to analyze the implementation of web-based digital media in online courses, particularly ones related to family literacy and welfare. A collection of digital media based on websites are analyzed. The results of this study showed that most of the digital media had been proven to improve family literacy and welfare. It is recommended that further studies focus on mobile-based digital media for such online courses.
The implementation of multi-platform technology
Authors: Mustofa G G , Mulyanti B , Widiaty I
Published: March 2021

A single-platform technology is currently shifting to a multi-platform technology as the industrial revolution era is also developing. This study aims to identify the implementation of multi-platform technology in the industry-driven educational context. It has been found that multi-platform technology has a more effective and efficient effects either in the educational or the industrial context. It is also implied that a mobile-based multi-platform technology is preferred due to its accessibility and usability.
Identifying e-books in promoting literacy for children in general and children with disabilities
Authors: Saniputri R M , Tati T
Published: March 2021

ICT-based media have been chosen by people within various contexts. One of the easiest media to access nowadays is electronic books (e-books). This article seeks to identify e-books effectiveness to promote literacy digitally. E-books from various online platform were acquired and analysed. The results showed that e-books had been revealed to be effective in promoting literacy for children with and without disabilities. It is implied that e-books can be an effective virtual tool in the era of industrial revolution 4.0.
Identifying effective e-books for effective digital learning
Authors: Aviyanti S D , Widiaty I
Published: March 2021

It is believed that e-books are one of the easiest digital platforms to acquire and use. This paper investigates effective e-books for effective digital learning. In this industry-driven era, digital learning plays an important role as it meets the requirements of the era. The results of this study showed that e-books with downloadable features into PDFs were preferred by users in various ages. It has also been implied that e-books are relevant in both industrial and educational fields.
Anti-cheating software tool: Prototype of problem generator software for linear algebra introductory test
Authors: Tuloli M S , Latief M , Rohandi M
Published: March 2021

To prevent students from cheating in the test, one of the strategies is by making a question that differs for each student. This approach can be used by using question-bank or question generator, the first approach is prone to cheating especially because of the widely available communication technology, this means the question generator is the only hope. This strategy is very possible to be used especially in subjects whose material has a standard pattern, such as in mathematics (calculation/structure patterns) and computer programming (logic patterns). As a branch of mathematics and also subjects in the informatics engineering curriculum, linear algebra has the potential to use this approach. But this approach involves the creation of a huge number of questions (and calculation of its answer), this requires extra efforts, we need software that can help generate questions and calculate its answers automatically. This study proposes a question-answer (problem) generation model and uses a software engineering approach (software requirement, design, implementation, and testing) to test the model. This study shows that the model implemented in this software was able to meet the need for generating questions for selected material on introductory subjects in linear algebra, with some caveat.
Active learning by increasing model likelihood for Gaussian mixture models based classifiers
Authors: Iswanto B H
Published: March 2021

A problem in many classification tasks is to acquire labelled data, while large amounts of unlabelled data are available. One way to overcome these problems is to apply active learning. This technique aims to select the most informative examples and to build optimally classifiers. In this paper, we propose an active learning algorithm for Gaussian mixture model classifiers by maximizing the current model likelihoods. The method assumes a large pool of unlabelled examples is available, the examples are i.i.d according to some underlying distribution, and the labels are distributed according to the class-conditional distribution. Experiments using artificial and real datasets show that, the proposed method outperform and show efficiency in the context of the query number compared with random and expected likelihood queries.
Mobile app design for sustainable agriculture in Mali-West Africa
Authors: Maiga J , Suyoto S , Pranowo P
Published: March 2021

In Mali, agricultural activities such as seeding, harvesting, and irrigation play a significant role in productivity. These activities must be carried out appropriately and above all, at an appropriate time to achieve excellent performance. Unfortunately, most farmers are unaware of the impact of these activities on the yield of their crops. This study aims to help farmers and youth people wishing to gather information needed in the field of agriculture entrepreneurship through a mobile application (mobile app). The app designed is mainly used to disseminate information to farmers on how to perform a wide range of agricultural activities such as detailed information about the type of crops, fertilizers, pesticides, selling and buying a product of agriculture, etc. This research was conducted for the adoption of the mobile application in the agricultural field in Mali. The design process followed a User-Centered Design approach to meet the users’ requirements. The evaluation of the design showed that 89, 66% of the participants agreed with the designed application prototype. This app helps farmers and youth people improve their agricultural productivity and not to harm the environment. Therefore, the app helps them for sustainable agriculture to make better land management decisions.
A comparative review of extractive text summarization in Indonesian language
Authors: Widodo W , Nugraheni M , Sari I P
Published: March 2021

Text summarization has important role in natural language processing. One of text summarization type is extractive summarization. Research on text summarization in Indonesian Language is still rare and not evaluated comprehensively. Each research is only conducted based on subjectivity of researcher. This paper reviewed and evaluated some works on Indonesian Language Text Summarization for obtaining the better method by analysing some aspects. This review also mapped Indonesian text summarization evaluation techniques and obtained its advantages and drawbacks. This research aims to provide a comprehensive review of text summarization in Indonesian Language. Result of this study is a comparative review of some works which showed detailed aspects in summarization method.
Comparison of Nazief-Adriani and Paice-Husk algorithm for Indonesian text stemming process
Authors: Jumadi J , Maylawati D S , Pratiwi L D , Ramdhani M A
Published: March 2021

Stemming is a process contained in the pre-processing stage that recognizes basic words (stem word) by combining or solving each of the variants of a word. Every language is unique, the most popular stemming algorithm for Indonesian text is Nazief-Adriani algorithm. Therefore, this study aims to compare Nazief-Adriani algorithm with another stemming algorithm for Indonesian text, that is Paice-Husk stemming algorithm which is commonly used for English. Beside, Nazief-Adriani and Paice-Husk algorithm for stemming process, this study use McCabe Cyclometic Complexity Metrix to evaluate the complexity of algorithm. Based on the experiment result with 20 sentences as data with a thousand words, the accuracy of the Nazief-Adriani algorithm is better than the Paice-Husk algorithm, which is 91.87% compared to 64.43%. Likewise, in terms of complexity, the algorithm is still more complex Paice-Husk than Nazief-Adriani. However, in terms of processing time, the Paice-Husk algorithm is slightly faster than the Nazief-Adriani algorithm. These results indicate that the Paice-Husk algorithm requires a more complete implementation of Indonesian morphological and grammatical rules to produce the better Indonesian stem words.
A classification model for student exchange using CART algorithm
Authors: Zulfikar W B , Taufik I , Atmadja A R , Rahayu R P
Published: March 2021

The university has a cooperative relationship with other universities including abroad. The cooperation program covers various fields, one of which is the academic field. Students have the opportunity to exchange information, science, and culture through student exchange programs. However, not all students are eligible to join this program because there are terms and conditions that must be met from various aspects such as academics, attitudes, and even financial conditions. The purpose of this study is to analyse and preprocess the training data and then model it in the form of classification using CART. Based on the test results, the proposed model provides satisfactory results with an accuracy percentage of 90%.
Design of emergency response assessment system using Feature-Driven Development approach
Authors: Baswardono W , Septiana Y , Arifin D M , Fatimah D D S
Published: March 2021

This research aims to analyze and design an emergency response assessment system for disaster that will aim for a voluntary team being able to conduct quick assessments in the affected area more effectively and quickly. Feature-Driven Development (FDD) approach is deemed appropriate for analysis and design and later will be developed an emergency response quick assessment system that will be used to collect data such as the impact of facilities and infrastructure, security situation, transportation access, food supply and so on. The aim of the assessment is to used the data will to find out whether an intervention is needed or not. After that, the data is processed and results in the provision of useful assistance on target and on benefits site following the conditions and regulations in Indonesia.
E-Character Mental Revolution (E-CMR) based on technology of Mobile Digital Education (MDE) for physics concept
Authors: Suherman S , Darman D R , Wibowo F C , Gumala Y , Sugiyarto W A , Budi A S
Published: March 2021

Ubiquitously, flexibility, accessibility, and a variety of cellular technology capabilities make it valuable and a necessity today. However, in general, it is underutilized in learning physics. The purpose of this study is in development of technology E-Character Mental Revolution (E-CMR) Based on Mobile Digital Education (MDE). The research method used was ADDIE (Analysis, Design, Develop, Implement, and Evaluate) with the research implementation ADDIE being 60 students and the ages 22-24 years. The results showed the development of technology of E-Character Mental Revolution (E-CMR) based on Mobile Digital Education (MDE) on the concept of physics.
Requirement analysis for autograder system using use case model
Authors: Elsen R , Kurniadi D , Rahayu S , Nashrulloh M R
Published: March 2021

At the beginning of software development, requirement analysis is needed to determine what features and components must be applied in the software to meet its purpose. Autograder have the purpose to grade student submission so the lecturer and student can know the grade immediately. To fulfil it, an analysis of requirements for autograder should be done so we can determine what features and components needed to be applied in autograder. This requirement also can be used to determine the future test plan. In this paper, we analyse the needed requirement for the autograder system and present it in the use case model.
HPAI consumer shopping analysis using Apriori algorithm
Authors: Findawati Y , Hikmah I N , Sumarno S , Rachmawati Y
Published: March 2021

PT Herba Penawar Alwahida sells a variety of herbal products. The process of buying and selling transactions occur every day, resulting in a pile of data pretty much. However, so far the transaction data has only been used as material to make monthly reports without further use of data these, even though from these data information can be extracted to support marketing. To utilize existing transaction data, the authors make a website-based data mining application. This application will be developed by method association (Association Rule) uses apriori algorithm. So that it can be seen the level of accuracy of this application. With the application of data mining, is expected to help the distributor to get information about which HPAI products are often purchased by consumers simultaneously, so as to improve the product marketing and maintaining process availability of stock of these products to remain.
Prototyping online learning media using SCORM
Authors: Bariah S H , Rahadian D , Imanis K A N , Purwanti Y , Nasruloh I
Published: March 2021

The online learning model is now widely used by various institutional sectors aimed at learning can be done anytime and anywhere without being limited by space and time, but many institutions or institutions are constrained in presenting standardized material so that the impact of teaching materials that have been made is limited its use. In the Information Technology Education study program of Indonesian Education Institute still uses the file attach system to store teaching materials. This results in the difficulty of lecturers knowing the learning activities carried out by students. Therefore, we need to design an online learning media based on SCORM in the e-learning web institute of institupendidikan.ac.id that can solve the problem so far. The design model in this study uses the Unifed Modelling Language (UML) model which is a structural model and techniques for modelling object-oriented program (OOP) design. The results of this study are expected to be implemented by all lecturers in making teaching materials in the SCORM format.
Design of employee presence system using Radio Frequency Identification technology
Authors: Fatimah D D S , Sutedi A , Hidayat M S , Fitriani L
Published: March 2021

Employee attendance is important data at a college, because it is related to employee performance. Information technology for presence systems exists that uses magnetic cards and biometric measurements. Lately there is a technology of Radio Frequency Identification (RFID) devices that use radio signals to identify objects. Such RFID characteristics enable this technology to be used on employee cards connected to a computer-based presence system. Based on these conditions, this study aims to design a presence system using RFID technology. The system design uses the Rational Unified Process method, the Unified Modelling Language, with PHP and MySQL as builder software. The hardware used, in addition to a set of computers with specifications tailored to the needs, is also equipped with RFID devices. The presence system produced includes an RFID card reader, and a presence data processor. The presence system has a menu for adding employee data, employee attendance, delay identification, time management, monthly attendance recapitulation for each employee, and attendance recapitulation for all employees. This system has been trained by operators in the presence section with a very good absorption of 82% with a two hour training period. This shows that the system is relatively easy to implement.
Developing an instructional media based on Augmented Reality animation for 3R topic (Reduce, Reuse, and Recycle) of thematic learning
Authors: Sulistyowati P , Ananda N S , Hudha M N
Published: March 2021

An instructional media based on the recent technology is essentially required for thematic learning. This research and development aimed at developing an instructional media based on Augmenter Reality animation for 3R (Reduce, Reuse, and Recycle) lesson. It employed an ADDIE development procedure that consist of five stages: analysis, design, development, implementation, and evaluation. The Product was validated by two experts; media and content experts. The trial was administered to 20 students and teacher as the prospective users. The instrument of this research was a questionnaire. The results of the instructional media based on Augmented Reality animation development for 3R lesson (Reduce, Reuse, and Recycle) confirm that the product is valid and feasible.
Implementation of Naïve Bayes algorithm in IoT-based water cleanliness monitoring system
Authors: Manaf K , Kaffah F M , Mulyana E , Agnia N
Published: March 2021

Internet of Things or commonly referred to as IoT is a concept that has the aim to expand the utilization of the internet. The application of IoT can be done in various fields, both in the fields of science, industry, health, and geographical. One example of the application of IoT in this study is for net AI classification, according to Government Regulation No. 82 of 2001 the classification of water quality is divided into 4 classes, namely classes one, two, three and four. By utilizing IoT and implementing the Naïve Bayes algorithm as a basis for classification, it can facilitate monitoring of water itself whether it is feasible or not for use in everyday life. In addition to applying the Naïve Bayes algorithm as an algorithm for classification, it also designs and builds tools for collecting water data, using temperature, pH, and turbidity sensors. The results obtained are the accuracy of 99.16 % for the temperature sensor, 96.89% for the pH sensor and 100% for the water turbidity sensor.
Design and implementation of thesis exam assessment at Science and Technology Faculty UIN Sunan Gunung Djati Bandung
Authors: Hamidi E A Z , Mulyana E , Wildan M , Miftahussalim R , Effendi M R
Published: March 2021

Speeding up the calculation process in thesis exam, a web-based thesis exam assessment system is needed, the data of the students would be saved safety on a database. Designing and implementing thesis exam assessment system a web based at Science and Technology Faculty UIN Sunan Gunung Djati Bandung are the purpose. Admin and user are the people who can do at a work principle as a method of this research. User is examiner or counsellor, and admin is operator, usually administration staff. The result would be proven well, after designing and implementing have been processed. All system, such as input text, button and hyperlink in assessment system has been well functioned based on their design, purpose and function.
Fuzzy logic application for short term energy consumption forecasting in one shopping centre at Cirebon city
Authors: Khadijah S , Abdullah A G , Hakim D L
Published: March 2021

Short-term forecasting is often used to predict with calculations using time, hour, day or week. This study aims to compare the accuracy of the results of the method. many choices of methods used for conventional forecasting (moving average, exponential smoothing, linear regression, and ARIMA) for artificial intelligence there are artificial neural network algorithms and fuzzy logic. A fuzzy logic method is a method used in research to predict energy consumption in one shopping centre in the city of Cirebon because as is well-known shopping centres are users of considerable energy consumption. The data used in this study is the cooling system which is the biggest user of energy consumption in shopping centres. It is hoped that this research can prove the accuracy of the fuzzy logic method for estimating energy consumption.
System of monitoring on carbon dioxide of broiler chicken growth in closed house
Authors: Alimuddin A , Arafiyah R , Sirajuddin S , Lady N , Susiono W , Masjudin M
Published: March 2021

The broiler is one of the chicken to be able to grow fast for producing meat in a relatively short time. In modern times broiler farms have entered the industrial scale. Poultry in this case broiler chickens breathe by inhaling oxygen and releasing carbon dioxide gas and water. In this case, if the oxygen content in the cage is too low, this condition is related to the temperature and humidity of the cage, it will affect the production and health of the chicken. This study aims to determine to find out the distribution of carbon dioxide in broiler farming in a closed house. Method, Equipment was used namely hardware and software specifications; the first, Laptop Creation of programs and real-time data retrieval is done using an Intel Core i3 - 2310M type laptop, 2 GB RAM memory and Microsoft Windows 7 operating system. The second, the Toolbox. power, driver, actuator. The three Closed House and Enclosure Support Devices measuring 1.8m x 1.3 m x 1m are made of boards, equipped with fans, lights, chickens, and sensors. The research support tools include: multimeters, cables, solder, lead, and lead suction. The fifth, MATLAB Software Th system designed is simulated with MATLAB software version 7.8.0.347 (R2009a) with Simulink facilities. The sixth is Code Vision AVR software for creating and coding programs. Code vision used is version 1.25.9. The results of monitoring system carbon dioxide test integrated in real-time the first produce 500 ppm in free air while the second test produces 1000 ppm carbon dioxide if based on the characteristics still carbon dioxide threshold in the closed house.
Investigation of male searching for female silkworm using an artificial pheromone in free-space environment
Authors: Fikri M R , Ramdhany M F , Djamari D W
Published: March 2021

A male insect can exhibit interesting motions and behaviours when it detects the female pheromone. The behaviour shown by a male insect is frequently used for nature-inspired robotics research especially for various applications such as teleoperated and autonomous source locating robots. In this research, we investigate the male searching for female behaviour by changing the source of pheromone using an artificial pheromone. This research is conducted by using three male insects, where, each insect performs three trials and the chosen environment is a free-space environment. The three male insects perform satisfactorily without having any hurdle in a free-space scenario using artificial pheromone. It is concluded that the motion behaviour of insects can be applied in the real robot for searching mission.
Analysis of electric load forecasting using combined method (Study case 2019 – 2029 in PT. PLN (Persero) UP3 Sukabumi)
Authors: Rahardjo I A , Subekti M , Parjiman P , Rosyanti D
Published: March 2021

The purpose of this study is to find out how much electric load to Sukabumi from 2019 until 2029 at PT. PLN (Persero) UP3 Sukabumi. Forecasting of electrical load using historical data. This research uses a combined method, which is a method compiled by combining several models such as econometrics, analysis, and trends with a sectoral approach, which is an approach by grouping electricity consumers into four sectors, namely the resident, commercial, public, and industrial sectors. The population forecast of Sukabumi in 2019-2029 shows an average growth of 0.36% per year. Gross Regional Domestic Product (GRDP) for resident sector growth of 6.26% per year, commercial sector growth of 6.26% per year, public sector growth of 6.26% per year, and the industrial sector growth of 10.07% per year. The electric customers for the resident sector growth of 5.26%, commercial sector growth of 13.96% per year, public sector growth of 7.58% per year, and industrial sector growth of 3.53% per year. The electric contracted power for the resident sector growth of 5.19% per year, commercial sector growth of 14.96% per year, public sector growth of 7.28% per year, and industrial sector growth of 3.36% per year. Growth of population, GRDP, number of electric customers, and power contracted, as shown in forecasting 2019-2029, will affect to increasing electrical load. The total electrical load will be 1,054.22 MVA in 2019 and 2,043.80 MVA in 2029 or growth of 6.74% per year.
IoT: Improved home energy control system based on consumer
Authors: Radja M , Hungilo G G , Emmanuel G , Suyoto S
Published: March 2021

The merge of urbanization in Indonesia results in a sharp increase in household energy consumption. Energy conservation is a global challenge for both individuals and decision-makers. The increasing household energy consumption is mostly caused by unwanted usage of electrical energy. The purpose of this paper is to design an improved smart home electricity management system based on consumer behaviour, which will help household occupant to control the usage of electricity automatic using sensor and manual using a smartphone. The sensor used in the system are a motion sensor, temperature sensor, sound sensor, and light sensor also wireless technology is used for controlling electricity outside of the home using a smartphone. The proposed system has multiple benefits of saving electricity bill of the house and keep the owner of the house updated about home security with the ability to control the home appliances and reduce electrical energy consumption.
Redesign Gas Insulated Switchgear to Semi Air Insulated Switchgear 500 kV side and 150 kV side in EHVS Kembangan
Authors: Damiri D J , Prasetio T W
Published: March 2021

The main role of 500 kV extra high voltage Gas Insulated Substation in transmission system is serves connection between the electrical generation and transmission system. To improve equipment performance and the quality and reliability of electricity distribution need time to maintain gas insulated line compartment but preparation to maintenance requires a long time, limited maintenance duration and long implementation of gas evacuation. This paper is object to redesign Gas Insulated Switchgear (GIS) to Semi Air Insulated Switchgear (AIS) on 500 kV side and 150 kV side with new design of Gas Insulated Line compartment in order to accelerate maintenance and gas evacuation job. with surveys, observations, analyses and Root Cause Problem Solving (RCPS), it can be seen the initiation of improvement to accelerate the maintenance of IBT and accelerate the repair of anomalies in the gas insulated line. After redesign Gas Insulated Switchgear to Semi Air Insulated Switchgear, this results show maintenance IBT after redesign is 25 hours faster and duration anomaly on GIL after redesign 24 hours faster.
Additional functions of Electric Vehicle on grid as storage support system
Authors: Heningputra D A , Abdullah A G , Hakim D L
Published: March 2021

Indonesian grid electricity can be better with the contribution of electric vehicles (EV). EVs have electrical energy storage, which can store a load or electrical energy in a certain amount. EV already has a good charging system and charging type that requires a short amount of time. The vehicle to grid (V2G) charging system allows EV to be able to charge the battery as usual, and channel the energy in the EV battery to grid. The electricity grid has a system to keep the frequency at a nominal 50 Hz. EV functions in harmony with the connected reserve used in primary frequency regulation. Primary frequency regulation will be active with a frequency of ± 0.06% of the nominal frequency used. Utilization of EV can be used for load levelling in West Java grid load. Load levelling and peak cut threshold with the conditions made to get the smallest calculation amounted to 37.82MWh and 3182.30MW, with these two calculations EV has good potential to help the network.
Rooftop PV business scheme in Jakarta
Authors: Haryadi F , Simaremare A , Indrawan H
Published: March 2021

There is competition in Rooftop PV selling in Jakarta. So, many company wants to sell rooftop PV as much as they can. Here, PLN, conduct a research to know customer profile to understand their characteristic before determining business model scheme. Method used in this research is survey online and offline. The result is business scheme A, where the customer submits a purchase to Haleyora Power with a installment scheme to the Bank with a certain installment period. With this scheme, automatic ownership becomes the property of the customer or consumer. Next is the business scheme B, where a customer can ask for an install in his house by way of rent, but with a note during the rental period, the rooftop PV is owned by PLN, and the customer pays to Haleyora Power at a lower amount than it should, the calculation can use the difference from the use of imports from PLN reduced by kWh income from rooftop PV. In this system, customers are required to subscribe for several years, and if it is less than that, an additional charge will be charged on the electricity bill. Another alternative is the C business scheme, where PLN sets the price of a Rooftop PV LCOE, such as Rp 900 / kWh. Then PLN installed a margin and sold it at Rp. 1200 / kWh which is still significantly below the current price of conventional electricity. With this scheme, ownership of the rooftop PV remains with PLN, so customers will always continue to buy energy output from the rooftop PV at a certain price, and if the energy from the rooftop PV is gone on that day, then the energy sent to the customer comes from grid and normal tariffs from PLN will apply.
Risk based approach for surge arrester replacement
Authors: Purnomoadi A P , Mangunkusumo K G H , Jintaka D R , Tofani K M , Ridwan M
Published: March 2021

Surge arrester is a critical component in tropical countries since the likelihood to have a lightning stroke in the transmission system is higher in comparison to those in sub tropics. Therefore, assuring the reliability of this component is important. However, the surge arresters are sometimes being overlooked during the replacement plan because of its insignificant price in comparison to the protected assets. Transmission utility mostly just install and forget. This paper presents a methodology to replace the High Voltage (HV) and Extra High Voltage (EHV) surge arresters based on the risk of a failure. The condition assessment based on resistive leakage currents and the statistical reliability curve based on lifetime assessment define the likelihood of failure. While the consequences are based Safety, Extra Fuel Cost, Energy Not Served (ENS), Customer Satisfaction, Leadership, and Environmental Impact. The risk is then estimated by multiplying the likelihood of failure and consequences. It can be used to prioritise replacement, particularly when resources (budget, spares, workability) are limited.
The development of environmental knowledge and the use of solar energy using environmental responsibility behavior in Central Java
Authors: Hamiyati H , Subekti M , Rahardjo I A
Published: March 2021

Energy has an essential meaning in life to continue to develop and support economic and environmental activities. Every year energy in Indonesia increases rapidly in line with human growth. To supply energy needs, renewable energy sources must be developed. Renewable energy potentials such as solar energy have never been used on a large scale even though Indonesia has enormous energy potential. Solar energy can be used in the form of solar cells for electricity generation. The utilization of solar cells can help people who live in remote areas far from the electricity network. This research was conducted in Central Java by using descriptive qualitative methods and using research and development (R&D) methods. The technique used is an expressive qualitative analysis technique. The result solution implemented is to meet the increasing electrical energy needs of the community. This research produces renewable energy that can be used as a solution to solving the electrical energy crisis at an affordable cost and can increase the independence of the community so that it does not depend on government electricity supply and improve environmental responsibility behavior.
Electricity and economic valuation of smart grid system on Nusa Penida electricity market
Authors: Ruth E , Nurmela N , Mulyadi Y , Sasmono S
Published: March 2021

Smart Grid Technology is widely applied in various countries to reduce the basic cost of generation electricity in the region. The existing generation on Nusa Penida Island is only used PLTD, that leads the generation cost are relatively higher, with cost generally Rp.1198, 44884/KWh and more high cost for consumers, to overcome the problems of the system is applied a SG technology, by combined PLTD with photovoltaic (PV) penetration as renewable energy generation and battery energy storage system (BESS) on Nusa Penida grid. This study is analyzed the grid impact and economic value from this technology on Bali, with study case of Nusa Penida island. With used SG concept is Renewable Energy, Storage and Micro Grid Development (RESMG) as base concept of this study. By determined the scenario and conducting the calculation LCOE on PV penetration place, then choose the appropriate scenario there found 3 PV penetration site. With 3-PV penetration site, then calculated the LCOE, and the lower cost is Sakti with Level Cost of Electricity (LCOE) Rp. 780,791591/KWh after PV-penetration on GH-Sakti.