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INVOTEK: Jurnal Inovasi Vokasional dan Teknologi
Published by Universitas Negeri Padang
ISSN : 14113414     EISSN : 25499815     DOI : -
Core Subject : Science, Engineering,
Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Transportation
INVOTEK: Jurnal Inovasi Vokasional dan Teknologi is a double blind peer-reviewed journal for Technical, Vocasional, Education and Training (VET) related research. This journal provides full open access to its content on the principle that making research freely 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 (understood in a wide sense and also known as e.g. TVET Technical Vocational Education and Training, Professional Education and Training, Career and Technical Education, Workforce Education).
Arjuna Subject : Umum - Umum
Articles 7 Documents
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Search results for , issue "Vol 22 No 2 (2022): INVOTEK: Jurnal Inovasi Vokasional dan Teknologi" : 7 Documents clear
Analysis of Hardness on the Tapping Knife of Rubber Plants Made of Medium Carbon Steel Resulting from Quenching Process with Different Cooling Mediums Niko Adima Brawira; Hendri Nurdin; Remon Lapisa; Budi Syahri
invotek Vol 22 No 2 (2022): INVOTEK: Jurnal Inovasi Vokasional dan Teknologi
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/invotek.v22i2.1017

Abstract

The quenching process carried out by the Blacksmith was still simple and used regular water cooling. This results in the knife not having a good value of hardness. This study aimed to analyze the effects of quenching with different cooling media on the hardness of the JIS SUP 9 knife from Blacksmith. The research method used an experimental method with research objects made of carbon steel per leaf or the JIS SUP 9 which was given hardening with a temperature of 800 ° C with a holding time of 30 minutes then quenching with water cooling media and oil. The data analysis found that the knife quenching with water had an average hardness of 295.6 HVN, Oil had an average hardness of 720.7 HVN, and control specimens with a hardness of 256.6 HVN. Thus, the medium quenching oil has the highest value of hardness, while the oil quenching media also has a good hardness value with no acceleration of the process of expansion. From the results of the study, the authors recommend in the quenching process use of oil cooling media, as well as adding variations of cooling media to get a better hardness value.
Application of the Teaching Factory Model to the Learning Outcomes of Class XI Students in the Heavy Equipment Engineering Department Wagino Wagino; M Giatman; Nurhasan Syah; Iffarial Nanda
invotek Vol 22 No 2 (2022): INVOTEK: Jurnal Inovasi Vokasional dan Teknologi
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/invotek.v22i2.1021

Abstract

The dream of a 'link and match' between schools and industry to become a reality is a big target to be achieved by the government. For that we need the support of superior human resources (HR) so that development can run well. One of the concepts of the learning approach carried out by the Ministry of Education and Culture is for schools to produce superior human resources in accordance with the needs of the industrial world through the teaching factory (TEFA) program. Recent research has demonstrated an urgent need for future engineers. This research is a continuous experimental study for 2 semesters by applying it to all samples, to see if there is a significant effect on TEFA. Research that uses the Ex-Post Facto approach. The population in this study were students of the Heavy Equipment Engineering Department at SMK Negeri 1 Guguak. The sample is class XI students of the Heavy Equipment Engineering Department who have obtained the Teaching Factory Learning Model as many as 32 people who were selected using a non-probability technique, namely Purposive Sampling. The data analysis technique used is descriptive analysis. The result of t-test is smaller than t-table (-0.381 < 1.697). This shows that the negative effect of the application of (TEFA) on the Learning Outcomes of Class XI Students in Powertrain and Undercarriage subjects is not only insignificant or very small, it can even be said to have no effect.
Turnover Intention in a Conventional Bank: How is it Related to Job Satisfaction, Job Stress, and Hijrah? Reny Soviana; Hilma Raimona Zadry; Lusi Susanti
invotek Vol 22 No 2 (2022): INVOTEK: Jurnal Inovasi Vokasional dan Teknologi
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/invotek.v22i2.1029

Abstract

Every company activity is carried out by human resources, a valuable asset for the company. If a company has competent, loyal and tough employees, then, of course, the company’s progress can be seen more quickly. The turnover phenomenon is one of the problems that are often faced by companies, including those faced by the management of Company XYZ, a branch of banking company in West Sumatra. Thus, it is necessary to know the factors influencing turnover intention, including job satisfaction, job stress, and moving from conventional banks. This study aims to measure and analyze the effect of these three variables on employee turnover intention and analyze the critical factors at Company XYZ. Quantitative research was conducted by distributing questionnaires to the population with 99 respondents. The data analysis technique used is Structural Equation Modeling (SEM) with Smart-PLS software. The study results found that job satisfaction had a negative and insignificant effect on turnover intention. Furthermore, work stress has a positive and significant effect on turnover intention. The last variable is hijrah from conventional banks, a critical factor that positively influences turnover intention with a t-value of 6.350.
The Automatic Onion Cutter Using Arduino Uno as Control System Tool Putra Jaya; Hendra Hidayat; Delsina Faiza; Almasri Almasri; Zulwisli Zulwisli; Muhammad Aidil
invotek Vol 22 No 2 (2022): INVOTEK: Jurnal Inovasi Vokasional dan Teknologi
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/invotek.v22i2.1030

Abstract

Today's technological developments are growing rapidly, but there are still jobs that are done manually and semi-manually. This paper aims to develop a control system to coordinate the work of tools using an electric motor, which is very helpful in the process of cutting onions in large quantities and is more efficient in spending production costs because the tool designed is an automatic onion cutter. This research method begins with the collection of materials and data related to onion cutters, production of onion cutters, and testing of onion cutters. The measurement results of the tool show that every component in the automatic onion cutter works well and optimally; the measurement process is carried out properly and thoroughly. This optimal work result is supported by Arduino Uno. The Arduino Uno microcontroller acts as a tool controller. In the main system, the onion cutter is controlled by the Arduino Uno with the Arduino programming language. This automatic onion cutting system will work when the onion you want to cut has been inserted into a cross-section that has been equipped with an ultrasonic sensor, and then the onion cutting process is carried out. Compared with the manual method, the cutting time is almost the same. It's just that the advantages of slicing with this tool, the resulting slices are relatively more uniform. Besides that, another advantage is that it doesn't hurt the eyes of the onion slicer. So that this tool can be used by small entrepreneurs and onion farmers to increase productivity and the community's economy.
Adsorption of Heavy Metals Fe and Mn in Acid Mine Drainage from Coal Mining Waste Using Calcium Oxide and Fly Ash Hendra Pratama; Edy Nursanto; Rika Ernawati; Muhammad Giatman
invotek Vol 22 No 2 (2022): INVOTEK: Jurnal Inovasi Vokasional dan Teknologi
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/invotek.v22i2.1020

Abstract

Acid mine drainage for Fe and Mn metals have a negative impact on the environment. This study studies the use of calcium oxide and fly ash as adsorbents, used to absorb Fe and Mn metals contained in acid mine drainage. This study aims to analyze the effectiveness of Calcium Oxide and fly ash as adsorbents, that an adsorbent of Fe and Mn metals in acid mine drainage. The method used is experimental with a laboratory scale, the test is carried out by adsorption using a batch system. Magnetic stirrer is used as a stirring medium in the adsorption process. Calcium oxide with various doses (0.1; 0.2; 0.3 grams) and fly ash with various doses (10; 14; 17 grams) were mixed with 250 ml acid mine drainage, then stirred at a speed of 150 rpm and (30; 60; 90 minutes) stirring time. The characterization of the adsorbent was carried out by SEM testing. The results show that fly ash adsorbent has a better adsorption effectiveness than calcium oxide. The effectiveness of Fe is 85.35% and Mn 78.14%. While calcium oxide has the effectiveness of Fe 72.91% and Mn 61.81%. SEM testing of holes that increase and enlarge after adsorption, as well as the filling of the cavity by the material indicates the success of the adsorption process.
Material Selection and Analysis of Torsional Rigidity in Formula Student SAE regulation Felix Dionisius; Imam Nur Arif; Tito Endramawan; Agus Sifa; Badruzzaman Badruzzaman
invotek Vol 22 No 2 (2022): INVOTEK: Jurnal Inovasi Vokasional dan Teknologi
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/invotek.v22i2.1024

Abstract

The advancement of automotive technology is rapid in this era, as evidenced by the existence of autopilot vehicles that have been developed by a scientist. This progress is balanced with the knowledge that continues to develop in the world of education. Many prestigious automotive competitions are held to be a venue for student creativity and research in developing automotive technology, one of which is the Formula Student SAE. This is the background of a study to develop an engineered electric vehicle chassis, especially in Formula Student. This study aims to produce a chassis design that has torsional rigidity based on the selection of materials that have stiffness, strength, lightweight, and optimization of material cost. The structure of the vehicle was designed following Formula Student SAE regulations. To select material, initial screening was used by the Ashby method which produce 4 material types. Optimum of selecting the material used the Simple Additive Weighting (SAW) method. Meanwhile, chassis with material selected was analyzed by using Solidworks Simulation Education software. The results of this study produced Aluminum Alloys 7075-T6 material and torsional rigidity value of 552.65 x 103 Nmm/degree of chassis, which could achieve the minimum torsional rigidity value set at 500 x 103 Nmm/degree.
Development of Jogja Tourism App using GPS-Based Tracking Augmented Reality Hardika Dwi Hermawan; Azis Amirulbahar; Dita Puji Rahayu; Miftah Rizki Hanafi; Yuni Setya Ningsih; Sidik Nurcahyo
invotek Vol 22 No 2 (2022): INVOTEK: Jurnal Inovasi Vokasional dan Teknologi
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/invotek.v22i2.1011

Abstract

The number of tourists every year continues to increase, but the pandemic resulted in tourists experiencing a decrease, and activity also prioritized social distancing. With the reduction of tourists and human interaction, media are needed to help tourists still visit Jogja by minimizing interaction. The method used to build applications in Research and Development. The first stage is the need analysis and literature study. The second stage is a design that uses use-case diagram. The third stage is implementing or developing applications and quality assurance testing. The fourth stage is the stage of testing software for users and knowing the feasibility of the application. The results showed that the results of the application work were excellent, with a percentage of 85.11%, which means the application is suitable for the Jogja Tourism App.

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