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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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Development of 3D Animation in AR-based Children's Storybooks Lukcyhasnita, Andam; Khairina, Isni; Siregar, Rumnasari K
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 4 No. 4 (2024): 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.v4i4.315

Abstract

Along with the advancement of technology, it brings updates in the digital world, namely the reality of the additional world or Augmented Reality (AR). The application of AR has now been applied in various fields, especially in education. This is because the presence of AR makes the learning process fun. One of the basic learning is reading. However, unfortunately sometimes reading through book media becomes quite boring. For children, now the use of smartphones has become something close and common, so that reading books becomes less interesting because it only displays still images. Therefore, this study was conducted to create an interesting book by combining AR technology. The use of this technology aims to develop children's story books based on Augmented Reality (AR) with 3D animation to increase literacy interest in children aged 6-8 years. This study has succeeded in creating a children's story book entitled The Adventures of Budi and Wati, as well as a mobile application with Android OS and has successfully displayed 3D animation from book illustration images. In this study, data collection was used with literature studies in various sources. The process of creating this 3D animation was carried out in 3 stages of production. Pre-production, Production, and Post-production. In the pre-production stage, the research team carried out story idea and script preparation activities, in the production process, the development process, 3D animation development and AR application development were carried out. In the post-production stage, the product trial process was carried out on several devices. The results showed that the application could be run, but on Android products with OS version 14. Even so, the application product can run well on Android OS 14 and display animations smoothly. AR technology presents characters and stories in interactive visual form, so that children are more enthusiastic about getting involved in reading. The application of this technology not only encourages reading interest, but also stimulates children's creativity and imagination through a more enjoyable and immersive reading experience.
Implementation of Electrical Equipment Control and Security System integrated with Internet of Things Suprianto; Lestari, Meidi Wani; Frianto, Herri Trisna; Toruan, Henry H. Lumban; Zarina, Raja Intan binti Raja Zaki Hashim
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 4 No. 4 (2024): 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.v4i4.368

Abstract

Research on Electrical Equipment Security and Control Systems Using the Internet of Things aims to implement an IoT system for controlling electrical equipment and security systems. The owner of the security location will receive a phone call if an object is detected and can monitor and activate the alarm system while controlling electrical equipment. In addition to saving electricity, it is also intended that the detected object/human will change his mind. This system can be used anytime and anywhere. The specific target achieved is to implement a building security system and control electrical equipment using the internet of things. The method used is the experimental method, namely collecting data from the results of measuring electrical quantities in the system. The equipment used is the SIM800L module, PZEM sensor, PIR module-8 sensor, RTC, PCF8574, shift register 74HC595, ESP 32, Triac, Optocoupler, buzzer, contactor, and other supporting equipment. The results of the study show that the ability of the PIR sensor to detect objects has a sensitivity that is not all the same even with the same type, the sensitivity of the PIR sensor is influenced by the condition of the internet network, the location of the detection room, the length of the pir sensor cable to the esp 32, and the speed of the response of the designed system. Controlling electrical loads using the blynk application with contactor equipment can work effectively if the internet network conditions are stable, the effectiveness of using optocouplers and triacs allows the contactor to receive input quickly and responsively. Keywords: IoT, ESP 32, security, alarm, sensor
Effect of Lime Juice on the Properties of Used Cooking Oil in Biodiesel Degumming Process Handoko, Riki; Saragih, Yessy Dea Sylvia
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 4 No. 4 (2024): 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.v4i4.373

Abstract

The purpose of this study is to determine the effectiveness of lime juice on the characteristics of used cooking oil in the degumming process in terms of free fatty acid (FFA) and acid number. The specific objective of the author is to determine the limits of the ability of lime juice as an organic catalyst in the degumming process. The data are obtained by carrying out descriptive experiments on used cooking oil processed by degumming method with lime juice (Citrus aurantiifolia Swingle) as organic catalyst and studied the characteristics of FFA and acid number with SNI 7182: 2015 standard with volume variations of 1%, 2%, 3%. The research process was conducted at the Integrated Laboratory of the University of North Sumatra, which obtained the best results at 2% lime juice content with FFA value of 1.87% and acid number of 2.66 mgKOH/g. Degumming with lime juice is not effective in reducing the FFA content and acid number.
Implementation of Tracking System Based on JT701 Smart Lock Technology on Goods Delivery Service Vehicles Sundawa, Bakti Viyata; Amalia; Batubara, Febrin Aulia; Nasution, Tuti Adi Tama; Pardede, Morlan
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 4 No. 4 (2024): 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.v4i4.374

Abstract

The goods delivery service industry has emerged as a strategic business both during and after the pandemic. The shift towards online shopping, which became a norm during the pandemic, let’s continue post-pandemic, making it a promising sector for companies involved in goods delivery. However, the industry faces challenges, particularly related to security during shipment. One common issue is the inability to track vehicle positions, leading to unauthorized loading and unloading activities at incorrect locations, causing losses for business owners. Conventional mechanical locks are vulnerable to theft, duplication, key loss, and vandalism, making them inadequate for securing cargo. To address these issues, Smart Lock technology has been developed, offering enhanced security through modern, integrated features. This technology eliminates the need for physical keys, reducing the risk of loss, and allows for remote access management. Additionally, it enables cargo owners to monitor the vehicle's position and control the lock remotely. Given these advancements, there is a need to explore Tracking Systems for delivery vehicles, incorporating automatic locks controlled via Internet of Things (IoT) technology. Based on the measurement, the tracking system tool testing was carried out at 5 different locations. The distances are 2.9 km, 6.4 km, 3 km, 7.1 km, 4.7 km from campus. The GPS signal is sent to the cloud server Cloud of Jointech. Data transmission uses the GSM network. There is a delay difference of 2-3 seconds from the GPS time signal compared to the time data displayed on the website. The data provided from the GPS signal is updated every 20 seconds. Based on the 5 test locations that have been set, the on/off lock test has been successfully carried out.
Solar Power Plant Installation with Environmental Monitoring System to Increase Hydroponic vegetable production Sundawa, Bakti Viyata; Hutabarat, Nicodemus Firman River; Cholish
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 4 No. 4 (2024): 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.v4i4.375

Abstract

The demand for vegetables in Batubara Regency is extremely high. Currently, the supply of vegetables is still imported from Tanah Karo and Deli Serdang Regency. This is due to the geographical condition of Batubara Regency which is in a coastal area. The majority of their people work in the fisheries sector. This opportunity was taken by our partner from SMK T. Amir Hamzah Indrapura by building greenhouse to produce vegetables. However, there are obstacles, namely the partner does not have a cheap source of electricity to increase the production of hydroponic vegetables. Therefore, it is necessary to build an alternative electricity source in the form of a solar power plant. It saves monthly electricity costs at the greenhouse. An environmental monitoring system needs to be built at the greenhouse to maintain and monitor the parameters that affect the growth requirements of hydroponic vegetables such as temperature, humidity, and lighting.
Implementation of 3D IoT Mapping Tourism in Identifying Green Tourism Potential Hasibuan, Annalisa Sonaria; Chan, Andi Supriadi; Destiadi, Rezha; Husna, Meryatul
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 4 No. 4 (2024): 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.v4i4.376

Abstract

Tourism is a key sector in Indonesia's economic development, contributing significantly to national growth. With a target of generating USD 30 billion in foreign exchange and attracting 22.3 million international tourists by 2024, the sector aligns with the 2020-2024 RPJMN narrative to strengthen economic resilience. Emphasizing sustainable and green tourism, Indonesia promotes eco-green principles to reduce environmental impacts, conserve natural and cultural heritage, and empower local communities. The study highlights the use of Internet of Things (IoT) and 3D mapping technologies to enhance tourism management and promotion, focusing on Lingga Village in Karo Regency, North Sumatra. These innovations aim to present spatial data interactively, improving accessibility and tourist experiences. Survey results show that 85.4% of respondents strongly support the use of 3D modeling for tourism promotion and education. Despite its potential, challenges such as limited budgets, small sample sizes, and community engagement remain obstacles. This research underlines the importance of integrating green tourism, technology, and sustainable practices to achieve equitable regional growth and environmental conservation in Indonesia.
Route Optimization for Motorcycle Riders Using A* Algorithm to Enhance Fuel Efficiency Chan, Andi Supriadi; Daulay, Rizky Ananda Alam Syah; Lubis, Muhammad Farhan
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 4 No. 4 (2024): 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.v4i4.377

Abstract

This research focuses on the development of a route optimization application designed to help motorcycle users reduce fuel consumption. Leveraging the Google Maps API and the A* algorithm, the application identifies the most efficient routes by analyzing factors such as road distance, traffic conditions, and elevation. The system is tailored to benefit motorcyclists, both those using carburetors and fuel injection systems, who frequently face fuel inefficiency due to improper route selection. By integrating real-time data from Google Maps, the application provides users with optimal route recommendations that not only minimize fuel usage but also reduce travel time. The A* algorithm was selected due to its high efficiency in determining the shortest paths by considering multiple variables simultaneously. Through simulations and testing, the system demonstrates significant potential to improve navigation efficiency, particularly for long-distance commuters. This solution is expected to contribute to cost savings and more environmentally friendly transportation choices.
Design and Testing Poultry Mixer Feed with Elbow Agitator Simanjuntak, Melvin Emil; Lumbantoruan, Henry Hasian; Sitorus, Melvin B. H.; Simanjuntak, Janter P
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 4 No. 4 (2024): 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.v4i4.378

Abstract

Currently, ruminant livestock, poultry and fish are increasingly using processed feed. It occurs due to the nutritional content can be adjusted to the needs. A lot of livestock will require a lot of feed, so a tool is needed that can mass produce the required feed. This processed feed is a mixture of several components that can be purchased individually. A motorized mixer is needed to save time and energy while reducing costs. The existing mixer has several shortcomings, such as the absence of a water supply device, a mixture that cannot be poured and a mixing spoon in the form of a flat plate so that the splint is less strong and the mixing process tends to be longer. The resulting prototype has a water supply pump, a pourable mixture, and an elbow-shaped agitator. Observations of the experimental results showed that the agitator material could move more toward the end so that the mixing process was faster. The mixed material became homogeneous in 5 minutes and perfect in the 10th minute for all experiments conducted.
Aspects of Structural Design of Residential Buildings in Medan City, North Sumatra Province Sitompul, Mizanuddin; Dary, Rhini Wulan; Tobing, Palghe; Nofriadi; Efrida, Rizki
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 4 No. 4 (2024): 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.v4i4.380

Abstract

Generally, residential buildings, especially low-rise ones in North Sumatra, are not well planned and built with poor supervision. In its planning, it often overrides the calculation of structural analysis. This residential building is known to have many failures during earthquakes. The research team is interested in studying the important elements in the design and construction of residential buildings, focusing on very crucial structural aspects. By considering these aspects comprehensively, it is hoped that the end result will be a sturdy, functional, and sustainable structural design of a residential building for its occupants.
Effectiveness of Using Wire Rope Slings in Improving the Stability of Cantilever Retaining Walls Tarigan, Rasdinanta; Parman; Harahap, M. Ari Subhan; Amrizal
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 4 No. 4 (2024): 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.v4i4.381

Abstract

A slope is a land surface that slopes and forms a certain angle to a horizontal plane. In a place where there are two land surfaces of different heights, there will be forces that push so that the higher ground tends to move downwards which is called the potential force of gravity which causes landslides. Landslides on a slope can cause loss of life and property and can hamper the economy of an area. Cantilever walls are often used as retaining walls to avoid landslides. The cost used in the construction of cantilever wall retaining walls is quite expensive. For cost efficiency of the cantilever wall construction, it is necessary to use cantilever wall reinforcement using wire rope sling. In this study, cantilever wall retaining walls were modelled with or without the use of wire rope slings. The research location is Jl. Gelugur Rimbun, Ps x Kutalimbaru Kab. Deli Serdang. Based on the results of laboratory testing, the soil classification at the location is clay (CL). According to the analysis, the use of wire rope slings contributes to an increase in the factor of safety (FS) of overturning by 12.500% - 50.026%. While increasing the factor of safety (FS) sliding by 4.165% - 16.627%. An increase in the factor of safety (FS) bearing capacity of 17.222% - 36.109%. The greatest effect of the use of wire rope slings occurs in overturning stability by 50.026%. The use of wire rope slings can reduce the dimensions of cantilever retaining walls.

Page 20 of 23 | Total Record : 221

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