Indonesia Conference Directory

Corresponding Author
Fahmy Febi Ramdhani

Institutions
Post-Graduate Studies School, Universitas Pendidikan Indonesia, No. 229 Dr. Setiabudhi
Street Bandung 40154, West Java, Indonesia
fahmyfebi[at]student.upi.edu

Abstract
Additive manufacturing, or better known as 3D Printing today is one technology that is growing rapidly in some countries. This technology is increasingly having an important role not only in business and everyday products, but in the world of education. 3D printer technology can be a medium of learning in the world of education in the implementation of the manufacturing design 2D and 3D design on a student majoring in mechanical engineering drawing. Therefore, research is needed to understand the use of new technologies in education. The purpose of this study was to analyze and gather information about the latest technology used by 3D printing. This research method using a literature review journals in the last 5 years. Findings of the literature review indicates the type of the latest technology used in 3D printing in manufacturing system design using computer-aided design (CAD). Overall, this review could be further research in instructional media in vocational education.

Keywords
Computer Aided Design (CAD), 3D Printing, Vocational Education

Topic
Technical and Vocational Education

Link: https://ifory.id/abstract/fpPR6TbY7Wvc

Corresponding Author
Ayung Candra Padmasari

Institutions
(a) Multimedia Education Universitas Pendidikan Indonesia Kampus Cibiru, 40393 Bandung
ayungcandra[at]upi.edu
(b) Software Engineering Universitas Pendidikan Indonesia Kampus Cibiru , 40393 Bandung
asyifa[at]upi.edu
(c) Teknologi Pendidikan Universitas Pendidikan Indonesia ,40154 Bandung
Asepherry[at]upi.edu

Abstract
The need for innovative media in the Industrial Revolution 4.0 era become a new necessity and challenge especially looking at cultural and historical potential which must remain preserved along with the times and technology. Designing new media previously designed conventionally related to historical information on West Java about Hindu Buddha Temples become a new innovation to create information media for digital age. Historical information on Hindu Buddhist temples is basically very interesting learning to be known by everyone, both teenage children and the general public, because the history of Hindu Buddha temples includes sacred buildings from Indonesian classical relics that are used as a place of worship by historical society of Hindu Buddha This research aims to design a 3D gallery design combining photo panorama as an innovation media in conveying information related to the history of Hindu Buddhist temples. The method used in this research is Design and Development (D&D). The results of this study are 3D modeling and photo assets. The texturing object was produced from 9 photos and 1 panoramic photos with the aim of displaying a realistic visualization of a 3D gallery to display an interesting interior photo of the Hindu Buddha Temple.

Keywords
Virtual 3D, Gallery, Temple, Panorama, Photo

Topic
New Technologies in Education

Link: https://ifory.id/abstract/2uEkVTvHZDfX

Corresponding Author
Tutin Aryanti

Institutions
Universitas Pendidikan Indonesia

Abstract
Banda Aceh City has been titled as a youth-friendly city in 2017; however this city has not had centralized facilities for youth interaction and youth talent development. Banda Aceh City needs to have a youth center as a youth facility that has various youth infrastructures in it. The youth center is designed using a dynamic theme that is adjusted to the character of youth which is full of enthusiasm and spirit. The dynamic theme is applied through the concept of building façade (color and texture), building shape, and landscape. The use of the dynamic theme is expected to be able to attract youth to use the facility and to develop talents according to their interests and doing other various positive activities. Youth Center of Banda Aceh City with the dynamic theme is expected to be a facility of character building, capacity building, and improvement of youth competitiveness so that it can support the success of regional development maximally following the city-s 2017-2025 Regional Medium-Term Development Plan.

Keywords
youth center; dynamic architecture; interaction facility; talent development

Topic
Architecture

Link: https://ifory.id/abstract/4wYqPGQ9NkHT

Corresponding Author
Tansa Trisna Astono Putri

Institutions
PTIK-FT, Universitas Negeri Medan

Abstract
Freedom of opinion through social media is frequently allows a negative impact that spreads hatred. This study aims to automatically detect Indonesian tweets that contain hate speech on Twitter social media. The data used amounted to 4,002 tweets related to politics, religion, ethnicity and race in Indonesia. The application model uses classification methods with machine learning algorithms such as Naïve Bayes, Multi Level Perceptron, AdaBoost Classifier, Decision Tree and Support Vector Machine. The study also compared the performance of the model using SMOTE to overcome imbalanced data. The results show that the Multinomial Naive Bayes algorithm produces the best model with the highest recall value of 93.2% which has an accuracy value of 71.2% and an F1-score of 80.1% for the classification of hate speech. Therefore, the Multinomial Naïve Bayes algorithm without SMOTE is recommended as the model to detect hate speech on social media.

Keywords
machine learning algorithm, hate speech detection, twitter

Topic
Computer and Communication Engineering

Link: https://ifory.id/abstract/v4N6HxFMm3XT

Corresponding Author
Glenn David Paulus Maramis

Institutions
Universitas Negeri Manado
parabelemrompas[at]unima.ac.id

Abstract
Nowadays, there are some technology that has been used for recording attendance system, such as RFID, Mobile, etc. RFID technology for recording attendance management system has some vulnerabilities, such as cheating person. Finger print technology is used for overcoming this problem. This research aims to implement this technology as an alternative system to replace an old system that used RFID technology. Kanban method has been selected to develop this software as is believed can be effectively to develop sustainable system without destroy the old system. As the result this system has increased time marked efficiently and effectively.

Keywords
Finger Print, Kanban Method, Attendance Management System

Topic
Computer and Communication Engineering

Link: https://ifory.id/abstract/GhNUcmpXQwFC

Corresponding Author
Dien Rahmawati

Institutions
School of Electrical Engineering, Telkom University, Jl. Telekomunikasi Terusan Buah Batu, Bandung 40257 , Indonesia
*dienrahmawati[at]telkomuniversity.ac.id

Abstract
The power produced by solar panels is greatly influenced by its position towards sunlight. The more solar panels are perpendicular to the sunlight, the more power is produced. The aim of this research is creating a prototype of the solar panel position control system so that the position between the solar panels against the sun is always perpendicular. The solar panel position control system used in this study is based on image processing. In image processing, the webcam is used to take a shadow image of a bolt measuring 4 cm in diameter and 1 mm placed on a flat plane. Then, the image from the shadow of the bolt is processed to get the angle of view direction of the sun. Furthermore, the angle position is used as input for the solar panel drive motor. Thus, the position of the solar panel can adjust the direction of the incoming sunlight and its position becomes perpendicular to each other. From the results of the research conducted it can be concluded that the prototype can always follow the direction of incoming sunlight with an accuracy rate towards the center point is 95% for X-axis and 96% for Y-axis.

Keywords
control system, position, solar panel, image processing

Topic
Electrical Engineering

Link: https://ifory.id/abstract/HwY8kqgUvcQD

Corresponding Author
Harsiti Harsiti

Institutions
1,4)Information Systems Dept., Faculty of Information Technology, Universitas Serang Raya
2)Informatics Dept., Faculty of Information Technology, Universitas Serang Raya
3)Communication Science, Faculty of Social Science, Politics and Law, Universitas Serang Raya
e-mail : harsiti[at]yahoo.com, tbaimunandar[at]gmail.com, kangdoel2002[at]gmail.com, agus.setyawan[at]gmail.com

Abstract
Government services to community are not properly carried out without participation and liveliness of govermental units which have been set up based on their duties and service function.The reason is that they are the spearheads of the government services to community, especially in public services. The intended public services are focused on customer satisfaction (customer-driven government).In order to successfully achieve customer satisfaction, it is necessary to get feedback from community as service users so that government as service manager may cognize some complaints about the public services that have been provided.The community feedback can be delivered through complaint services that can be directly responded by the intended unit works.The aim of this study is to develop citizen portals (c-port) apps for service complaints to support public service management in order to realize the concept of smart districts based on local wisdom. The application has developed in android based as front-end for user (citizen) and as web-end for government and related regional work units. The result of study is a prototype, a product of citizen portals (C-Port) software equipped with Software Specifications, Document of Software Description, and Planning Document Description of Software Test Results, as a mean of communication and media for government to provide services to wider community.

Keywords
public services, customer satisfaction (customer-driven government), C-Port, Smart District

Topic
Computers, Internet, Multimedia in Engineering Education

Link: https://ifory.id/abstract/jNRcHXLAduaE

Corresponding Author
Kharisma Bani Adam

Institutions
School of Electrical Engineering
Telkom University
kharismaadam[at]telkomuniversity.ac.id

Abstract
Indonesia is still struggling to attract investors in developing the solar photovoltaic (PV) project. The government issued the first regulation on solar PV, announced in 2016. A revision on the local tariff regulation is conducted to reduce the rapid development of the solar PV investment. The major revision is made to change the contract scheme from a build-operate-own (BOO) to a build-operate-own-transfer (BOOT) scheme. This paper investigates how the new local tariff will drive investors and developers to invest in solar PV. This analysis is conducted to know the effectiveness of the policy and the risk of PV investment in Indonesia. Local tariff policy regulation targets PV developers to invest in the solar PV system areas. In the local tariff policy, each area has its PV energy tariff determined by the government. This research proposes a method for deciding demand by considering population data in selected regions to calculate the maximum PV demand of each area. The Levelized Cost of Energy LCOE is used to calculate the economic viability of the PV projects in selected areas in Indonesia. The results show that more than half of the selected areas are profitable for the PV project. The average profit of the projects of the selected areas is 3.21 cent USD per kWh. Most of the areas that have high PV demand have lower local tariffs. Therefore, these areas may not be profitable for developers. The new regulation also cuts the revenue significantly due to the new scheme contract.

Keywords
Local Tariff Policy, Photovoltaic, Solar Power

Topic
Electrical Engineering

Link: https://ifory.id/abstract/9EQCYmaLbnJp

Corresponding Author
Tutin Aryanti

Institutions
Universitas Pendidikan Indonesia

Abstract
Indonesian people-s mobility has grown massive during the past three decades. The quantity of various transportation facilities were also grown in some areas to accommodate people-s need. This phenomena has influenced the emerging of new need for certain space that can accommodate, facilitate, and contain people-s fast and massive movements. Adi Sumarmo International Airport in Surakarta is currently developing its facility with an airport train station, which connects the airport complex to Solo-s Balapan Train Station, from which visitors access the city. Employing behavioral approach and transit-oriented development principles, this design project applies the concepts of walkability, inclusivity, and accessibility.

Keywords
transit-oriented development, connectivity, transit, walkability

Topic
Architecture

Link: https://ifory.id/abstract/3yth7bHq2NTD

Corresponding Author
M Syaom Barliana

Institutions
KBK Sejarah, Teori Arsitektur, dan Budaya Bermukim; Departemen Pendidikan Arsitektur,
Fakultas Pendidikan Teknologi dan Kejuruan,
Universitas Pendidikan Indonesia

Abstract
The development of Universitas Pendidikan Indonesia (UPI) regional campuses are essential and urgent. In connection with that, the development and architectural design should consider the context and potential of the region. The wealth of local and traditional Sundanese architecture can be an inspiration for the design of the campuses development in the regions. Each region, of course, has its local wealth and uniqueness, which must explore. The methods used were historical descriptive research, ethno-architecture, and architectural transformation. This initial research explores the content, patterns, and characteristics of traditional Sundanese architecture then adopted and adapted to the principles of UPI regional campus architecture design in Cibiru, Sumedang, and Tasikmalaya

Keywords
Keywords: Adoption and adaptation of architecture, Sundanese architecture, UPI regional campuses

Topic
Architecture

Link: https://ifory.id/abstract/zZaw89guHCdh

Corresponding Author
Dinn Wahyudin

Institutions
Universitas Pendidikan Indonesia

Abstract
The quality of a nation depends upon the quality of its citizens. The quality of its citizens depends not exclusively, but in critical measure upon the quality of their education, the quality of their education depends more than upon any single factor, upon the quality of their teacher. It is widely acknowledged that the quality of teachers and trainers greatly influences the effectiveness of technical and vocational education and training (TVET) institutes in generating qualified and skilled workers. Based on this view, UPI as a university with a strong emphasis on education and creating future excellent teachers is planning to develop a center of excellence on vocational teacher education. In this regard, the formulation and implementation of educational policy, especially concerning the revitalization of vocational education should be long-term, sustainable, and scientific based, and not just be based on common sense. This study focuses on identifying and analyzing aspects related to organizational behavior of UPI in implementating and developing advanced knowledge and skills for sustainable growth in UPI towards the centre of excellence of technical and vocational education. The study used both qualitative and quantitative methods using action research design. The selection of the design is due to the main objective of the study is to identify problems in program implementation and to seek appropriate solution to the problems encountered. As comparison, serial group discussion (FGD) will be held with academic staff in Universite Otto von Guerick Jermany. The findings, among other, the level of organizational behavior is very strategic and have correlation with the univetsity gain in producing prospective and qualification of future technology nad vocational teachers. In addition the findings can be regarded as university strategic plan in implementating and developing advanced knowledge and skills for sustainable growth in UPI towards the centre of excellence of technical and vocational education.

Keywords
organizational behavior; curriculum development, vocational teacher education, sustainable growth.

Topic
Technical and Vocational Education

Link: https://ifory.id/abstract/qXmxfrFUKjZe

Corresponding Author
Agung Arief Wijaya

Institutions
a) PT. Pertamina Hulu Energi Offshore Northwest Java
PHE Tower, 8th Floor, Jl. T.B. Simatupang Kav. 99, Jakarta, 12520

Abstract
Pertamina Hulu Energi Offshore North West Java (PHE ONWJ) field has been producing oil and gas since 1979. The producing wells produce the formation of water at the average of 78%. Due to the decreasing of production rates, Pertamina Hulu Energi Offshore North West Java (PHE ONWJ) is required to search and find new additional reserves to unlocking Hydrocarbon in Reservoir Rock which can be produced faster, integrity of the wells can be maintained, and without Workover. There are several case histories where the depth of the potential zones is above the first packer. If those zones are directly produced by performed the perforation thru Tubing, The integrity of the wells will not be well maintained, as there is no double barrier in the annulus between the Tubing and the Casing. To maintain the integrity of the wells prior perforation, one barrier must be added to the inside of the annulus above the potential zone to be produced. Cement Packer technology itself is one of cementing techniques in which to put cement from inside the tubing through the annulus between the tubing and the casing using Coiled Tubing, where previously, communication has been made between the tubing and the casing to replace the function of packer to maintain the integrity of the wells. This paper will outline the method for cement packer technology, comparison with another technique and case history of cement packer technology in Offshore Northwest Java, started from the preparation phase to the operation phase. The safety aspect and treatment result for each wells will also be discussed in details.

Keywords
cement, packer, integrity,

Topic
Petroleum and Geology

Link: https://ifory.id/abstract/uQHepRA3aKxv

Corresponding Author
Denny Jean Cross Sihombing

Institutions
a) Information System, Atma Jaya Catholic University of Indonesia
Jakarta, Indonesia
*denny.jean[at]atmajaya.ac.id

b) Architecture, Darma Cendika Catholic University
Surabaya, Indonesia

Abstract
Indonesia has a wealth of the nation in the form of a variety of physical forms of architecture, which more often referred to as the Nusantara Architecture. Modern perceptions make people understand that buildings are composed of natural materials, and without planting, foundation means that the buildings are primitive. In this research, the media designed to introduce Batak architecture based on Augmented Reality (AR) Application, to introduce the physical appearance of Karo, Toba, and Simalungun Architecture. Architectural physical appearance includes the appearance of the roof, construction techniques, connection techniques, spatial planning, and compiler materials. The result of this research is the augmented reality application.

Keywords
Augmented Reality, Nusantara Architecture, Augmented Reality Application

Topic
Computers, Internet, Multimedia in Engineering Education

Link: https://ifory.id/abstract/dpWxKYagHBP4

Corresponding Author
Rinto Yusriski

Institutions
(a) Department of Industrial Engineering, Faculty of Engineering, Universitas Jenderal Achmad Yani (UNJANI), PO. BOX 807 Bandung Indonesia.
*yusarisaki[at]yahoo.co.id
(b) Department of Mathematics, School of Computer Science, Binus University, Syahdan
Street 9, Jakarta 11480, Indonesia

Abstract
The problem situation can be observed when the capability of several components on a single machine decrease during the scheduling period and need maintenance action. Since the lifetime is variation, that action often interrupts the production process. The solution can be obtained by grouping the maintenance action with determine the number of the group, component on the group, and scheduling the group to the shop. However, that decision must consider the production plan, i.e., the number of the batch, batch size, and schedule the batches. We propose the algorithm to integrate between both of these two problems, so the total actual flow time minimize. The result of experiments shows that the proposed algorithm could increase the performance effectively.

Keywords
group maintenance; batch scheduling; actual flow time

Topic
Industrial Engineering

Link: https://ifory.id/abstract/GuqeKMUfbh3J

Corresponding Author
Fauzi Abdilah

Institutions
a) Department of Chemical Engineering, Politeknik Negeri Bandung, Jalan Gegerkalong Hilir Ds Ciwaruga, Bandung 40012, Indonesia
b) Department of Chemical Engineering, Institut Teknologi Bandung, Jalan Ganesha 10, Bandung 40132, Indonesia

Abstract
Microbial fuel cell (MFC) is a promising technology that can be used to directly convert organic matter into electrical energy with the aid of microorganisms. This experiment studied the electricity-generating potency of a double chamber MFC using palm oil mill effluent (POME) as substrate and mixed culture originating from cow manure as inoculum. A non-catalyst graphite sheet was used as the electrode with a proton exchange membrane as the separator. In this work, we report that mixed culture bacteria from cow manure can be used as potential inoculum for microbial fuel cell generating maximum open circuit voltage, power density and current density of 853 mV, 655.98 mW/m2 and 1387.09 mA/m2, respectively. Electrochemical impedance spectroscopy (EIS) was done to investigate the electrochemical activities in the MFC. The biofilm formation on the anode surface was visualized using scanning electron microscopy (SEM).

Keywords
microbial fuel cell, palm oil mill effluent, cow manure, inoculum, graphite sheet

Topic
Chemical Engineering

Link: https://ifory.id/abstract/Er9dj32ptG6N

Corresponding Author
Efraim Ronald Stefanus Moningkey

Institutions
Faculty of Engineering; Manado State University
Jl. Kampus Unima tonsaru Tondano Minahasa Manado
efraimoningkey[at]unima.ac.id

Abstract
Valid and fast information is needed in daily life. Information will become an important element in the development of society today and in the future, sometimes the high information needs are not balanced by the presentation of adequate information. Mokobang SDGP as a new school requires an identification media in the digital world that is used as an information portal and school promotion. By using the Prototype method this research is done quickly and in accordance with the wishes of the user because the stages can be done quickly and repeatedly. The results of this research are building a Mokobang SDGP website as a school information portal and promotion.

Keywords
website, information, promotion

Topic
Computers, Internet, Multimedia in Engineering Education

Link: https://ifory.id/abstract/ALJXQ69mKneg

Corresponding Author
indra karna wijaksana

Institutions
Bandung Islamic University

Abstract
Many exposed rocks show well-defined fabric elements in the form of bedding, stratification, layering, foliation, fissure, or joint. In general, these rocks have properties (physical, dynamic, thermal, mechanical, and hydraulic) that vary with direction and are said to be inherently anisotropic. Evaluating anisotropic mechanical properties helps to predict the behavior of rock materials in analysis, design, and construction, and improves the quality and safety. This research discussed laboratory testing and analytical methods to determine the four values of elastic constants of transversely isotropic slate rock. Analytic calculations were performed to determine the elastic constants of rock material with the assumption of linear, elastic, homogeneous, and transversely isotropic. The strain value was determined at of 50% of peak stress on stress-strain curves. Multilinear regression analysis with least squares estimation method was used in determining the linear equation to get to the four elastic constants of the rock. In this study, the rock used as an example in laboratory tests obtained from two pieces of slate stone blocks from the Bora river, Central Sulawesi Palu area. These rocks have foliation that appears on the surface, and therefore these rocks will be treated as a transversely isotropic material. The results of uniaxial compression tests revealed that for the slate rock, the deformability in the direction that is normal to the plane of transverse isotropy (θ = 85o) is greater than that is parallel to the plane of transverse isotropy (θ = 5o) or, in other words, E1 > E2.

Keywords
transversely isotropic rock, elastic constants, uniaxial test

Topic
Mining Engineering

Link: https://ifory.id/abstract/YNZ84ctm7njx

Corresponding Author
SANGAJI BAGUS NUGROHO

Institutions
Technology and Vocational Education, Universitas Pendidikan Indonesia (UPI) Jl.Dr. Setiabudhi 207 Bandung 40154 Indonesia

Abstract
Abstract. Vocational education should be projected to support student-s skill that can be impact to the student-s readiness to work. As well the vocational education prepares student to be a professional worker, it also should be able to prepare graduates become enterpreuner. The student interest in enterpreunership is attentiveness, desire, pleasure to do business for the sake of their prosperity as dreamed. The graduates of Vocational High School can consider to develop entrepreunership as their choice of future career. The purpose of this research is to observe the entrepreunership interest of Agricultural Vocational High School Student. In accordance with the research purpose, so the researcher use qualitative research through decriptive method. The source data used are informants through interview as technical of colleting the data. The results showed that most of the students of Agricultural Vocational High School have interest and strong foundation to develope entrepreneurship. The conclusions resulting from this research is almost all the studentd at the grade XII majoring Agro Industry have interest to be an entreperneur.

Keywords
entrepreneur, vocational, agriculture

Topic
Technical and Vocational Education

Link: https://ifory.id/abstract/Kw7aEMTFkuNc

Corresponding Author
Annis Kandriasari

Institutions
a)b)c)d)e) Prodi Pendidikan Tata Boga, Fakultas Teknik, Universitas Negeri Jakarta
*annis[at]unj.ac.id

Abstract
Personal hygiene awareness can be proven by making observations on food processing and serving activities, by assessing whether awareness is limited to receipt of material or can be applied. The application Personal Hygiene in food processing and service activities is required to be in accordance with personal hygiene standards such as washing hands before starting practicum, wearing proper headgear, not long nails, wearing a clean jascook, and others. To find this out, analysis of awareness of personal hygiene knowledge is carried out with its application in carrying out food processing and serving. This study aims to analyze personal hygiene awareness in food processing and service activities. This research is descriptive with a qualitative approach. The instrument used in study was observation sheet and personal hygiene knowledge instrument in the form of an objective test. Analysis of the results this study is seen descriptively based on observations made there are 53.3% of respondents who do not have the awareness in applying personal hygiene and are strengthened with qualitative approach with a value of greater than α (0.05) so that can be concluded that personal hygiene knowledge good does not affect application of personal hygiene awareness in food processing and service activities.

Keywords
Awareness Analysis; Hygiene Personal; Food Processing and Services

Topic
Technical and Vocational Education

Link: https://ifory.id/abstract/Rky6XNnE9MVd

Corresponding Author
Danang Junaedi

Institutions
(a) Informatics Department, School of Computing, Telkom University
Jl. Telekomunikasi Terusan Buah Batu, Bandung 40257 Indonesia
(b) Information technology Department, School of Computing, Telkom University
Jl. Telekomunikasi Terusan Buah Batu, Bandung 40257 Indonesia
veffendy[at]telkomuniversity.ac.id
danangjunaedi[at]telkomuniversity.ac.id

Abstract
Housewives as lay users who do not work outside the home at this time are considered not productive in financial terms because it only depends on the husbands income. This housewife needs activities that can increase income and productivity in financial terms. One effort that can be done is to sell products owned by housewives as lay users. Currently, the selling trend has shifted from offline stores to online stores, one of which is through the m-commerce application. However, due to the ability of housewives to operate m-commerce applications is not good so that housewives are less able to take advantage of existing m-commerce as a medium for selling online. This has led to the emergence of problems of interaction patterns that have not been able to communicate design well for housewives as lay users. So it takes an analysis of interaction patterns as a guide in designing the user interface. The User-Centered Design (UCD) approach is used to analyze interaction patterns so that it can help find better design solutions that can overcome the problems of lay users. Interaction design testing is done by Testing Based Usability Testing using a questionnaire Interaction design testing is done by Testing Based Usability Testing using a questionnaire. Where testing the measured factors that are useful, effective, learnable, Memorable, helpful, engaging are expected to get good grades. The results of this study are the Interaction Design Pattern in m-commerce that is suitable for housewives in a case study environment.

Keywords
Interaction Design Pattern, M-commerce, User-Centered Design

Topic
Computer and Communication Engineering

Link: https://ifory.id/abstract/vz3CgRHAPjNf

Corresponding Author
Iwa Kuntadi

Institutions
Faculty of Technical and Vocational Education, Universitas Pendidikan Indonesia

Abstract
This paper analyzes and identification the needs for vocational education teacher in secondary school of the Renewable Energy Engineering, Industrial Automation Engineering and Automotive engineering based on the market values which has become a key policy goal for vocational education in Indonesia. The purpose of this study is to identify the level of market needs for secondary school vocational teachers in the fields of renewable energy engineering, industrial automation engineering and automotive engineering based on input from experts, analysts, teachers and practitioners in related fields. The data collection was carried out through documentation studies, interviews and field observations with relevant parties to obtain information on prospects and market potential in the development of secondary school technology teacher vocational education in the planned areas of expertise. From all the data collected, an analysis was conducted through focus group discussion activities and the final conclusions of this study were formulated. The final results of this study obtained a description that the prospects and market potential for opening a third-level vocational teacher education study program in the field of expertise programs namely renewable energy engineering, industrial automation engineering and automotive engineering are very wide open and very important role in Indonesias economic development in the future.

Keywords
prospect dan potential Market, vocational education teacher, Renewable Energy Engineering, Industrial Automation Engineering and Automotive engineering

Topic
Engineering Education Research

Link: https://ifory.id/abstract/bYmap7yFdR6z

Corresponding Author
Linda Pulungan

Institutions
Faculty of Engineering, Bandung Islamic University
*)linda.lindahas[at]gmai.com

Abstract
The development of mining industry sector causes some negative impacts on the environment. One of them is water pollution in the area surrounding the mining location. To reduce the impact, monitoring and management of water waste quality is one of the important things to do, to ensure the quality of tailing from flotation reach the tailings quality standard and has no impact on sea water. In this research analyzed the quality standard of tailings from flotation and quality standard of sea water in PT Amman Mineral Nusa Tenggara. The tailings quality standard analyze referring to Environment Minister Decision No. 92 in 2011. While the quality standard of sea water quality referring to Environment Minister Decision No. 382 in 2016. The parameter of tailings quality including pH, Solid Fraction, Density and Concentration of dissolved metal. Based on the results of the monitoring and management analysis, tailing from flotation that streamed to Teluk Senunu fill the quality standard of tailings . The results of sea water quality in Teluk Senunu filled the quality standard of sea water . Deep Sea Tailing Placement does not have negative impact, because the plankton ecosystem has increased in Teluk Senunu from beginning 1997 to 2016.

Keywords
Tailing, flotation, Concentration of dissolved metal.

Topic
Mining Engineering

Link: https://ifory.id/abstract/6ZvpzbqRJtmY

Corresponding Author
Alexander Muhammad Nicodemus

Institutions
a, b) Department of Civil Engineering, Faculty of Engineering, Universitas Indonesia, Kampus Baru UI Depok, Jawa Barat 16424, Indonesia
a*) axl.civil10[at]gmail.com
b*) yusuflatief73[at]gmail.com

Abstract
Abstract. OHS issues in Indonesia are still often overlooked. It appears that the number of work accidents are still high. Therefore, in early 2018 the government has decided to suspend all the elevated construction project in Indonesia including Flyover Project. It cause a negative impact such as casualties, material, time, cost etc. One of the factors that most hinders OHS implementation in the Project from the contractors point of view is the high cost of OHS implementation and the safety cost provided for OHS implementation by the owner are inadequate or even none at all. Safety cost planning can be done accurately if the activities based on Work Breakdown Structure (WBS) on the project can be well defined. The Activity-Based Costing method provides more accurate information especially on complex structures and can provide information on cost items that are ignored in traditional methods. The research methods used are archival analysis, case study, survey, and expert judgement. The research result the safety cost in flyover project that is expected to obtain a decent budget and specifically allocated for the implementation of OHS in flyover projects to improve working safety conditions.

Keywords
Flyover, OHS, Safety cost, Work Breakdown Structure (WBS)

Topic
Civil Engineering

Link: https://ifory.id/abstract/FhRdT9WgyrBG

Corresponding Author
Ressa Adrian Bernessa

Institutions
a, b) Department of Civil Engineering, Faculty of Engineering, Universitas Indonesia, Kampus Baru UI Depok, Jawa Barat 16424, Indonesia
a*) rabernessa[at]gmail.com
b*) yusuflatief73[at]gmail.com

Abstract
Abstract. In the last five years in Indonesia, the toll road construction project has become one of the most massive developments, with 65 toll roads and 4 national roads included in the National Strategic Projects list (PSN). However, along with the increase in construction projects in Indonesia in general the number of work accidents has also increased. in the period of 2017 to 2019, 54.5% of the number of construction accidents came from toll road projects. This results in significant losses such as loss of life, time, cost and so on. Wirahadikusumah (2019), the aspect that can improve working safety conditions is the availability of a decent budget and specifically allocated for the implementation of SMK3 in construction projects. Rzvi and Elnathan (1999), Activity-Based Costing method can provide information on neglected cost items in the construction method. So that OHS cost information on road construction projects can be available accurately starting from defining work activities based on Work Breakdown Structure (WBS). The research method used is archive analysis, surveys involving construction experts, and previous project case studies. This study produces a ratio of OHS costs to contract values in road construction projects so as to improve work safety.

Keywords
Road, Work Breakdown Structure (WBS), Occupational Health and Safety (OHS), Potential Hazard, Risk Control, Safety Plan, Safety Cost

Topic
Civil Engineering

Link: https://ifory.id/abstract/PBLbKRayeHZJ

Corresponding Author
Elih Mulyana

Institutions
Universitas Pendidikan Indonesia

Abstract
Transformer is the main equipment in the electric power system that is directly related to the electrical transmission and distribution system. An important part of a power transformer is its insulation system. Along with age and its operation the condition of insulation can be damaged which can lead to failure of surgery. The purpose of this study was to determine the quality conditions of the power transformer insulation. The method in this research is observation and study of literature. While the research location is PT PLN (Persero) TJBT APP Cirebon. Data taken in the form of polarization index and delta tangent test results. After the data is collected, the polarization index and delta tangent are calculated and analyzed. Analysis of the polarization index testing using the primary-ground, secondary-ground, tertiary-ground, primary-secondary, secondary-tertiary and primary-tertiary methods. Whereas tangent delta testing is the relationship between CH, CHL, CL, CT, CHT, and CLT. The results of tests with delta polarization and tangent indexes, that the transformer isolation resistance is still good, and the transformer is feasible to operate.

Keywords
insulation resistance testing, polarization index and tangent delta

Topic
Electrical Engineering

Link: https://ifory.id/abstract/29QBf8WKjhE7

Corresponding Author
Anggara Satria Perdana Putra

Institutions
a) Department of Civil Engineering, Universitas Indonesia, Depok 16424, Indonesia
asat_civil[at]yahoo.co.id
b) Department of Civil Engineering, Universitas Indonesia, Depok 16424, Indonesia
yusuflatief73[at]gmail.com

Abstract
The development of infrastructure in Indonesia is currently quite massive, in accordance with the Government of Indonesias policy in accelerating infrastructure developments. However, along with the increase in the construction sector, work accidents in the construction sector also increased. Cable Stayed Bridge is one of the excellent technologies in connecting islands but has a high potensial hazards and risks and it can cause fatal accidents. Accidents can be prevented through a good occupational safety and health management system (OHSMS). The application of OHSMS financing in Indonesian construction sector, especially in the cable stayed bridge has not been clearly and measurably regulated. In its implementation, the existing regulations have not yet been fully followed by the construction actors. This study aims is to develop the safety cost based on Work Breakdown Structure (WBS). The research methode are survey research and descriptive analysis. The study results are the cable stayed bridge standardized WBS, potential hazard sources, the preventive action to each potential hazards in each activity, finding the safety cost components based on WBS and the calculation of safety cost percentage in order to improve the OHSMS quality and reducing work accidents in the cable stayed bridge projects.

Keywords
Work Breakdown Structure; Risk Identification; Risk Prevention; Safety Cost, Cable Stayed Bridge Project

Topic
Civil Engineering

Link: https://ifory.id/abstract/rRnvDVB92Edu

Corresponding Author
Pungky Dharma Saputra

Institutions
a) Department of Civil Engineering, Universitas Indonesia, Depok 16424, Indonesia
pungkycivil[at]gmail.com
b) Department of Civil Engineering, Universitas Indonesia, Depok 16424, Indonesia
yusuflatief73[at]gmail.com

Abstract
The activities in the Indonesian construction industry have increased in recent years due to the government-s policy in the acceleration of infrastructure developments. Construction safety is one of the vital aspect on sites, which often times gets overlooked. One of the reasons is the lack of separate budget allocated for the implementation of Occupational Safety and Health Management System (OHSMS) in precast bridge project. In effect, it creates higher rates of accidents, which in turns, project terminated, delay and cut down project profits. The aims of this study are to determine the Work Breakdown Structure (WBS) in precast bridge project, identify potensial hazards, develop safety plans, identify safety cost components, and generate a calculation of safety cost. This research is conducted as a survey research using respondents who are experts in construction safety and descriptive analysis to determines the variables used. A case study approach is used to generate safety cost calculation. This study results are the precast bridges standardized WBS, a safety plan to each hazards and activity, finding the safety costs components based on WBS, and the calculation of safety cost percentage which will improve the OHSMS and reduce the number of accidents in precast bridge projects.

Keywords
Work Breakdown Structure; Risk Identification; Risk Prevention; Safety Cost, Precast Concrete Bridge Project

Topic
Civil Engineering

Link: https://ifory.id/abstract/wqeTp6HmaUk2

Corresponding Author
NUR AHMAD BACHTIAR

Institutions
1 Department of Vocational and Technology Education, Sekolah Pascasarjana Universitas Pendidikan Indonesia, Bandung, Indonesia
2 Department of Engineering Electricity Education, Universitas Pendidikan Indonesia,Bandung Indonesia
* Corresponding Author, e-mail: ade_gaffar[at]upi.edu

Abstract
This research was conducted to analyze the background differences in the scores of school final examinations in mathematics significantly between male and female students. Observation of final exam scores and interviews were conducted with students of class XII vocational high school in Majalengka, West Java, Indonesia, 2018/2019 academic year. The results of observations show that the female score is superior, seen from the average score of 40.9 compared to the average value of male 36.9 and is reinforced by the lowest value of male students 15.0 compared to female students 22.5 but for the highest value indicating the same value as 70.0. Interviews conducted showed that the factors influencing this difference were caused by the lack of interest of male students in subjects that needed mathematical logical thinking skills compared to subjects that required motor skills. Furthermore, this research is expected to be able to change peoples assumptions about the mathematical abilities of women and men. that not always women do not have the ability or are considered inferior in the field of mathematics, many factors can affect that ability. family background, environment, and interest in learning mathematics also affect the success of learning of male and female students.

Keywords
Gender, Mathematics Achievement

Topic
Technical and Vocational Education

Link: https://ifory.id/abstract/cLHvaBhdCQM9

Corresponding Author
Try Hikmawan

Institutions
a) Sekolah Pascasarjana, Universitas Pendidikan Indonesia
b) Universitas Pendidikan Indonesia

Abstract
The application of an electronic records management system is expected to have a positive influence on employee motivation. The purpose of this research is to learn from the use of an electronic archive management system regarding the work mechanism of employees at the KPw Bank Indonesia, West Java Province. The research method uses quantitative research methods. The focus of research on the use of an electronic archive management system is being applied. This study uses data analysis methods such as interviews and documentation as well as data analysis methods used using descriptive analysis methods. Based on the results of research on the use of electronic records management systems can increase employee motivation.

Keywords
electronic, records management system, employee, motivation, bank, web 3.0

Topic
Computer and Communication Engineering

Link: https://ifory.id/abstract/3QzmgBderUwj

Corresponding Author
Ressy Dwitias Sari

Institutions
PTIK-FT, Universitas Negeri Medan

Abstract
Academic loads in writing a thesis cause students difficulties to complete studies. This problem can be solved with the application of an expert system with early detection of depressive end-level students that compares several methods such as the Certainty Factor method and the Dempster-Shafer method. Certainty Factor method is to measure certainty of facts or rules in defining the level of expert confidence, while the Dempster-Shafer method combines uncertainty that has characteristics according to the way of thinking of experts but has a mathematical basis. Comparison of these methods is to get the most appropriate and best method for early detection of depression. The methodology used in this study is a comparative test of two methods, with a mechanism starting from (1) Gathering data related to the depression of final year students; (2) Data acquisition and weighting of confidence values; (3) Calculate formulations from both methods; (4) Perform a comparative test to obtain conclusions. The result shows that two examples of cases with different symptoms as input data, the probability value of the two sample cases resulted in the Certainty Factor method having the highest probability value compared to the Dempster-Shafer method. Certainty Factor method obtains the highest value which means this method is the most appropriate and the best model in early detection of depression. The Certainty Factor method will be implemented in building an expert system for early detection of depression to assist students in drawing conclusions of the initial diagnosis before conducting an intensive psychological examination.

Keywords
Expert System, Depression, Certainty Factor Method, Dempster-Shafer Method

Topic
Computer and Communication Engineering

Link: https://ifory.id/abstract/aVkXe7gK6BNM