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International Journal of Research in Vocational Studies (IJRVOCAS)
Published by Yayasan Ghalih Pelopor Pendidikan
ISSN : 27770168     EISSN : 27770141     DOI : https://doi.org/10.53893/ijrvocas.v1i1
Core Subject : Economy, Science, Education, Social, Engineering,
Aerospace Engineering Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other
The International Journal of Research in Vocational Studies (IJRVOCAS) is a double-blind peer-reviewed journal. This journal provides full open access to its content on the principle that making research freely and independently available to the science community and the public supports a greater global exchange of knowledge and the further development of expertise in the field of vocational education and training (VET). IJRVOCAS is since the beginning independent from any non-scientific third-party funding. The establishment of the journal was supported between 2015 and 2016 with grants from the Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation). All members of IJRVOCAS work on an honorary basis. The journal is hosted by Ghalih Publishing and the publishing house of the Ghalih Academic. Scope IJRVOCAS covers all topics of VET-related research from pre-vocational education (PVE), initial vocational education and training (IVET) and career and technical education (CTE) to workforce education (WE), human resource development (HRD), professional education and training (PET) and continuing vocational education and training (CVET).
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 221 Documents
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System of Carbon Dioxide (Co2) Detection Using Sim7600 Communication Module in Palm Oil Plantations Febrin Aulia Batubara; Bakti Viyata Sundawa; Tuti Adi Tama Nasution
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 2 No. 4 (2023): IJRVOCAS - Special Issues - International Conference on Science, Technology and
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v2i4.171

Abstract

The problem of environmental damage caused by the palm oil industry has become a global issue. This often becomes an obstacle to the development of the palm oil industry in Indonesia. In fact, millions of Indonesians work in the palm oil sector and are a source of non-oil and gas state revenue. For this reason, efforts to support a sustainable palm oil industry need to be carried out. One of them is the implementation of a smart system in the form of a carbon dioxide (CO2) level detection system. It is important to know these parameters because they are affected by the expansion of oil palm plantations. The measurement results can be accessed and displayed in real-time web-based using the SIM7600 communication module. It is hoped that this CO2 detector will be a solution to environmental problems and related parties can determine mitigation actions in the most extreme conditions.
Performance of Neutral Grounding Resistance and Solid Grounding on 60 MVA Power Transformer Zuraidah Tharo; Amani Darma Tarigan; Siti Anisah; David Banjarnahor
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 2 No. 4 (2023): IJRVOCAS - Special Issues - International Conference on Science, Technology and
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v2i4.172

Abstract

This research will look at the protection system on a 60 MVA power transformer and compare two grounding systems, namely grounding with Neutral Grounding Resistance (NGR) and Grounding Solid (GS). The performance of the two systems will be seen, which is the most effective and efficient. Soil resistance is directly related to water content and temperature; thus, it can be assumed that the resistance of a grounding system will change according to climate change. To obtain a stable grounding resistance, the grounding electrode is installed at the optimal depth to achieve a constant level of water content. The study began by collecting data and then comparing grounding using NGR with GS and measuring the resistance values ​​of NGR and GS on a 60 MVA Power Transformer. The results of this comparison will obtain data on the NGR and GS resistance values ​​on the 60 MVA power transformer, then analyze and compare these values ​​which will provide a conclusion which of the two systems has the best value for grounding.
Design and Implementation of IOT Connection With Websocket Using PHP Friendly; Ajulio Padly Sembiring; Sharfina Faza; Andam Lukcyhasnita
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 2 No. 4 (2023): IJRVOCAS - Special Issues - International Conference on Science, Technology and
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v2i4.173

Abstract

IOT design and connecting between devices has been developed in recent years. Connection between device has been done from using Bluetooth, internet thru api, restfull api, socket, websocket, mttq and many others method. Api and socket is the most used method in connecting IOT devices. This reasearch tends to implement the websocket in connecting and controlling IOT devices. From the application of this research, the devices can be connected and implement with high speed of average 700ms with loaded netword. According to the results of the test, number of loads and data size can increase the time duration for each communication between IOT devices and websocket server. The larger the data, the more possible the anomaly may accured where the number of connections will experience lagging in command execution between the IOT devices and the controller The bidirectional connection in websocket make the data exchange posibbly fast.
Geometric Design for Damar Wulan Road Deli Serdang Regency Tetra Oktaviani; Falwan Rizky Gunawan
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 2 No. 4 (2023): IJRVOCAS - Special Issues - International Conference on Science, Technology and
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v2i4.174

Abstract

Damar Wulan Road is one of the 3.5 km road sections located in Sampali Village, Percut Sei Tuan District, Deli Serdang Regency. This road has the potential to be an access to a strategic location, but there are still few people who use Damar Wulan Road as a mobilization route because most of the road is still subgrade. Therefore, it is necessary to design the Damar Wulan Road so that it can be used by the community. This study aims to design vertical alignment for Damar Wulan Road. The method used for vertical alignment design is TPGJAK 1997. The calculation on the vertical alignment obtained results in the form of 16 PVI arches, which are 8 convex vertical curves and 8 concave vertical curves.
Structural Analysis of Parking Barrier Made of Polymeric Resin Using Ansys Software Zoanri Purba; Maraghi Muttaqin; Bustami Syam; Ade Irwan; Fakhrur Rozy
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 2 No. 4 (2023): IJRVOCAS - Special Issues - International Conference on Science, Technology and
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v2i4.175

Abstract

A barrier gate is a stopping tool that has a security function in a place such as an office or agency entrance. This study aims to examine the response of the beam structure of the polymer composite material due to the support test. The parking portal material in this research is BQTN 157 EX resin, MEKPO catalyst, fiberglass. There are two parking portal compositions with impact test heights of 2 m and 4 m which will be simulated with ansys software. Overall, from two types of compositions, namely polymeric reinforced fiberglass composition A and composition B by looking at the results of the equivalent stress distribution (von-mises), it is concluded that polymeric reinforced fiberglass composition A has a higher maximum stress than polymeric reinforced fiberglass composition. reinforced with fiberglass composition B. From the comparison between simulation and experiment, it is known that the composition of rod A has a different damage position between simulation and experiment. While the composition of rod B in the simulation of the same damage position occurs, namely in the crossbar area connected to the transmission shaft and the experimental also has a damage position in the crossbar area connected to the transmission shaft.
Innovations for Improving the Welfare of Buildings with Android-Based Technology Using the kuliku.id Application Muhammad Rifki Abimayu; Muhammad Fikri Haikal; Khairunnisa Aprilza
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 2 No. 4 (2023): IJRVOCAS - Special Issues - International Conference on Science, Technology and
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v2i4.176

Abstract

Content-Based Filtering Recommendation System Using Categories Search Engine Vicky Rolanda; Teddy Surya Gunawan; Wanayumini
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 2 No. 4 (2023): IJRVOCAS - Special Issues - International Conference on Science, Technology and
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v2i4.177

Abstract

The search function is often used with certain keywords, usually using keywords and also catagories, someone knows what they want to search for, but some people often search according not to what they want to find but what is recommended to be seen based on ratings that can be by categories. Based on the recommendation system that is often applied, it is often developed based on the similarity between one item and another. So, this time the author wants to develop a search by users based on the same category so that users can reduce their desire to search according to the category they want, in this paper the author uses a recommendation system based on content base filtering.
Design of Drainage Dimensions on the Ismail Harun Road, Percut Sei Tuan District Nofriadi; Muflih Arif Maulana
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 2 No. 4 (2023): IJRVOCAS - Special Issues - International Conference on Science, Technology and
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v2i4.178

Abstract

Roads are the most widely used transportation infrastructure by the people of Indonesia to carry out daily activities, with the increasing flow of vehicles passing a road segment, it must be balanced by good pavement conditions. To achieve this balance, we need a design that is in accordance with the events in the field. In addition, to meet the good character of the road, it must be equipped with water channels or drainage. Because the drainage channel or water channel is one of the complementary buildings that must be on the road to drain water so that the road body remains dry. Drainage channel is one of the technical requirements of road infrastructure. The alarming condition can be seen on Jalan Ismail Harun, Percut Sei Tuan District, Deli Serdang Regency. One of the access roads connecting Deli Serdang and Medan City was badly damaged. The road was flooded with water so that the road surface condition was not visible. To overcome this, this research is needed in the form of a design / design of drainage dimensions on the road segment. The method used in designing the drainage dimensions is the Road Drainage Planning Guidelines Method Pd T-02-2006-B. The results of the drainage dimension design are the cross-sectional width (b) of 0.7 m, the cross-sectional height (h) of 0.35 m and the guard height (w) of 0.4 m.
Analysis of Yamaha Scorpio Engine Performance with Variation of Ethanol Fuel and Shell V Power Zufri Hasrudy Siregar
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 2 No. 4 (2023): IJRVOCAS - Special Issues - International Conference on Science, Technology and
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v2i4.179

Abstract

The number of motorized vehicles used will also be as much as the use of fossil fuels, as well as the increasing growth of vehicles that increases year by year, which does not affect fuel consumption but population growth. Fuel quality is measured by RON, where the higher the octane value, the better the fuel quality. RON simply describes how much pressure can be exerted before gasoline spontaneously ignites in the combustion chamber of the vehicle. This study aimed to determine the effect of Power, torque and fuel consumption with a mixture of Petalite, Shell V-Power and Ethanol with a test object, namely the Yamaha Scorpio motor. The research method used is a quantitative approach with a type of development research. The result of this study is that Shell V Power fuel, when mixed with ethanol will produce better engine performance, the greater the percentage of methanol introduced into the fuel, the better the performance produced, both torque, power, and fuel consumption, namely at rpm 1000,1500,2000,2500 methanol 8% the most optimal where the time is 174 Sec, Sec 105, Sec 86, Sec 51 Sec. And the force on the Load Cell is 0.535, 0.875, 1.102, 1.421 kgf.
Determining Student's Welding Skill for Visual Welding Inspector (CSWIP 3.0) Certificate Using Profile Matching Friendly; Berti Sari Br. Sembiring; Zakaria Sembiring; Piktor Tarigan; Rezha Destiadi
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 2 No. 4 (2023): IJRVOCAS - Special Issues - International Conference on Science, Technology and
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v2i4.180

Abstract

Welding is skill needed in many machinery and factory industries. Welding as skill is acknowledged by having a certificate. As certification cost is high, the skill must match the criteria for each test in a certification. In recent years, Politeknik Negeri Medan has held 7 times Visual Welding Inspector (CSWIP 3.0) certification with 57% of the participant pass the certification. Many participants not sure about the possibility of passing the certification process thus hesitating in taking this exam for the certification is costly. This research purpose the usage of profile matching method in determining the possibility of passing the certification. The result is suggested as a recommendation for taking the exam, but not preventing the examinee to take the certification test. The result shown that according to profile matching criteria, 75% people with recommendation is passing the certification, while all the people who didn’t meet the criteria and still taking the exam didn’t pass the test for certification.

Page 9 of 23 | Total Record : 221

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