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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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Synchronization of Poverty Reduction Program by TKPKD in Murung Raya District Muliana; Muhammad Riduan Syafari; Muslih Amberi
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 2 No. 2 (2022): IJRVOCAS - August
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v2i2.181

Abstract

In line with this, the phenomenon that occurred in Central Kalimantan Province with macro achievement indicators below the national rate, namely the poverty rate of 5.17%, the Gini index of 0.342 and the Open Unemployment Rate of 4% below the national rate of 5.13%. Open unemployment in Central Kalimantan is still dominated by residents aged 15-19 years (high school age) at 31.52%. Meanwhile, Central Kalimantan's economic growth of 6.74% is still above the national economic growth of 5.27% where the welfare of the poor tends to be stagnant when compared to the upper middle class. Murung Raya Regency is one of the Regencies in Central Kalimantan Province, the Regency Capital is located in Puruk Cahu, This Regency is a division of North Barito Regency in 2002 with an area of 23,799 km2 and a population of 111,500 people. In this case it can also be described the data on the Poverty Line, Number, and Percentage of Poor Population in Murung Raya Regency, 2017-2021.
Soil Monitoring Equipment and Automatic Springers Using Soil Moisture Sensor on Okra Plant at Ikahi Raya Plantation Desy Rahmadani Purba; Melly Nazwa Juwita
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.v2i4.187

Abstract

In this modern era, automatic plant sprinklers are important for important plants, coupled with the busyness of plant owners in caring for plants, watering plants manually is not practical, because homeowners have to come to the garden and water the plants directly using energy. The owner also cannot leave the plant for a long period of time, because the plant can lack water and cause the plant to wither or even die. Currently, the ease and efficiency of time and energy are the main considerations for humans in carrying out activities. From time to time we are faced with rapid technological developments, making human work easier. Therefore, this tool is designed to use a soil moisture sensor (soil moisture sensor) as a detector of soil conditions on plants by means of sensors detecting wet or dry soil and when the soil is wet the pump is ON to automatically water the plants. Plant owners can also monitor plants with LCD (Liquid Crystal Display) and blynk to know soil moisture conditions and their status through plants. This of course can make plant owners more effective in saving energy and time in caring for plants.
Rice Stock Monitoring: A Smart-home Based System Hikmah Adwin Adam; Marliana Sari; Wiwin Sry Adinda Banjarnahor; Orli Binta Tumanggor; Daya Februwanti Gultom
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.v2i4.188

Abstract

Monitoring systems have undergone numerous developments and improvements. Smart-home monitoring is one of the categories of monitoring systems which can be accessed remotely. Rice monitoring is one type of smart-home based monitoring that can be performed. In order to prevent households from experiencing a sudden lack of rice stock, it is essential to closely monitor the stock of rice. The Smart-home Based Rice Monitoring Design is an innovation created by earlier researchers for the benefit of the community, particularly households. This system is constructed with a microcontroller and a load cell sensor. To operate this device, user enters the weight of the rice using the keypad, and presses the fence button to release the rice from the container. In the meantime, pressing the star button on the keypad will delete or clear the entered numbers. The servo will then operate to open the valve, allowing the rice to fall, and close the valve when the weighing process is complete. A load cell sensor will perform the weighing process, and a 16x2 LCD will display the rice weight output process. All data processed through ESP32 will be transmitted to Firebase. The development of the application was planned using the MIT App Inventor website. To create applications on MIT App Invertor and Realtime Database on Firebase, an internet connection and an active email address are required.
Study of heat Energy Disposal in Hollow Roof Cooling Water Tank Sudirman Lubis; Farel H Napitupulu; Ilmi Abdullah; Tulus Burhanuddin Sitorus
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.v2i4.189

Abstract

Cooling tank is defined as a heat exchanger whose working fluid material is water, and air which functions to cool water by direct contact with air which causes a small portion of the water to evaporate. This water will flow in the hollow roof which is expected to absorb heat as it passes through the cavity. This study aims to obtain the value of the effectiveness of the heat transfer rate on the hollow roof, as well as to determine the amount of energy in the cooling water tank of the hollow roof that can be discharged every hour and to determine the water flow required to supply the hollow roof. During the study, the results obtained varied with the volume of water entering about 0.00064 m³ in each cavity, with a pump capacity of 5.5 LPM. From the test data obtained, if the intensity of sunlight is low, the heat will be absorbed by the environment and vice versa if the intensity of sunlight is high, the heat will be absorbed by the water. That is why the intensity of sunlight greatly affects the data collection process. From the results obtained in the field at the time of the study for 7 days, the average water temperature was 28.4ºC. This result can be categorized as safe because the water temperature does not exceed or is not far from the temperature in the water tank with an average temperature of 40.5ºC.
Implementation of Simple Additive Weighting (SAW) Method in Decision Support System to Determine the Best University in Medan Erwinsyah Simanungkalit; Jenny Sari Tarigan; Dewi Comala Sari; Annalisa Sonaria Hasibuan
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.v2i4.190

Abstract

Continuing studies to university are a hope for prospective students. However, this is an easy problem, because what needs to be considered in choosing such as, accreditation, lecturers, buildings, laboratory, cost of education, and percentage of alumn and others. By using the Decision Support System, the calculation of all the criteria can determine the best university to assist prospective students in choosing and choosing university. The Decision Support System uses the Simple Additive Weighting (SAW) method. Decision Support Problems are basically for the selection of alternative actions that allow prospective students to choose the university they want and will produce the best decision for prospective students to continue at the best university.
Analysis of System Degrees of Tilts of Solar Panel for Energy Utilization Using Solar Test Simulator Cholish; Ibnu Hajar; Sharfina Faza; Zumhari; Abdul Azis; Faisal Irsan P; Abdullah
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.v2i4.192

Abstract

The design of the Solar Panel Test Simulator by means of setting the solar panel placement stand so that the designed tool is able to provide a simulation of solar panel measurements based on actual conditions. The performance of the solar panels is shown through a monitor display placed on the design that will contain information about the solar panels as a whole. Limitations in placing the position of the solar panel will not provide a reference regarding measurement conditions based on the angle of incidence of the sun, so it is necessary to do further design regarding the position of the solar panel when the measurement is carried out. The development carried out in the design of this tool is in the form of setting the solar panel mount in the form of a solar panel mount tilt of 450, 900, 1350, and the distance of the halogen lamp 30cm as the energy source is measured. The measurement results are based on an average design temperature difference of 0.49% with a voltage of 1.55%.
Study of The Auto Transmission Dynamics System and The Effects of Clutch Pressure on Planetary Gear to Optimized the Output Speed Khai Chu Thanh
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 3 No. 1 (2023): IJRVOCAS - April
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v3i1.166

Abstract

The performance of an automatic transmission is dependent on the dynamics of its components, such as the clutch, planetary gear, and torque converter. In particular, the clutch pressure and planetary gear output speed can affect the overall performance of an automatic transmission. In this paper, It will present the kinematic relations, the dynamics of planetary structure, calculating the impact of braking torque of brake and clutch to slip to the speed of the vehicle Toyota Camry used automatic transmission A140L. Since then, the graph describing the dependence of the transmission ratio gearbox in the hands of, the speed of vehicles on the oil pressure brake and clutch. Finally, modeling and simulation control of such operations by SolidWorks and Matlab Simulink Simmechanics software to clear about this effect
Studying Studying Toyota Prius Vehicle System by Simulation with Advisor Huu Huy Nguyen
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 3 No. 1 (2023): IJRVOCAS - April
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v3i1.167

Abstract

Nowadays, reducing fuel consumption and greenhouse gases are top priorities for automotive manufactures because of environmental hazards and running out fossil fuels all over the world. These reasons are the key factors that lead to the creation of hybrid cars. This article discusses the intervention in hybrid vehicle’s content parameters, which were conducted on the simulation software ADVISOR, by changing the value of the vehicle according to certain rules. We also use the Vietnamese’s driving cycle of to set the ADVISOR program up. The simulation results showed that we have successfully re-established Toyota Prius’s driving cycle using Vietnam’s Road condition and lowest the fuel consumption and emission with the setup driving cycle, by changing the parameters of the car.
Numerical Investigation of the Effect Infill from Different Unit cells Structure on Mechanical Behaviour Imam Akbar; Martin Luther King; Zulkarnain Fatoni; Togar PO Sianipar; Sukarmansyah; Akbar Teguh Prakoso
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 3 No. 1 (2023): IJRVOCAS - April
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v3i1.168

Abstract

This study aims to identify the effect of infill on mechanical behaviour, especially the yield stress and modulus young of polylactide materials with different unit cell structures such as gyroid, diamond, square, and re-entrant but same porosity with value of 60%. Using Computational aided design (CAD) software and analyzed using the finite element method. The results show that the square structure has the highest strength in terms of mechanical behaviour such as yield stress with a value of 27 MPa, while the gyroid is 25.5 MPa, diamond is 25.3 MPa, re-entrant is 23.3 MPa and young modulus square is 2233MPa gyroid is 2199 MPa, diamond is 2195 MPa re- entrant 2182 MPa. In this study, it was also found that the thickness struth of the unit cell and modulus young had a very strong linear correlation with R2 = 0.96 which explains that the higher the thickness value, the higher the modulus young value. The results of this study also show that although lattice structures, especially square ones, have the highest value, TPMS structures, such as gyroids and diamonds, have more stable performance because these structures have an even stress distribution, thereby reducing the risk of failure of the structure. besides that, the researchers concluded that this TPMS can be used as a solution to improve structural performance.
Components Affecting Changes in Gross Profit and Net Profit Initiation Rita Martini; Sulaiman Sulaiman; Kartika Sari; Kella Sauky; Sukmini Hartati
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 3 No. 1 (2023): IJRVOCAS - April
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v3i1.169

Abstract

Financial problems are one of the very vital problems for the company in the development of business in all companies. The evaluation carried out by the company must begin with analyzing each data on the financial statements by comparing the post per post or period one with another. This evaluation uses the analysis of financial statements. Gross profit or profit is one of the main goals of the company in exploring its activities. The management always plans the amount of profit each period, which is determined through the targets to be achieved. The purpose of this study is to analyze and find out the causes of changes in gross profit and changes in net profit by comparing the income statements on CV. Mag Wilab Indonesia. The author uses secondary data, namely income statement. The final result analysis technique shows the causes of changes in gross profit and changes in net income with a comparison of three consecutive years. The results of the analysis using this comparison are that there is a change in gross profit marked by a decrease in gross profit in 2020 and an increase in gross profit in 2021. In addition, the next result is a decrease in net profit 2020 and 2021.

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