bluuebunny/crossref_metadata_2025_split huggingface dataset:
The demonstration method using kinesthetic learning style on oxy-acetylene welding practice
Authors: Djatmiko R D , Pradana F N , Prasetya T A , Putra A G S 
Published: December 2020

Abstract
This study aims to determine the differences between students’ learning outcomes using kinesthetic learning demonstration learning methods on the oxy-acetylene welding practice subject for welding technique class grade X students at Sayegan 1 Vocational High School. The research method used was an experimental method with quasi-experimental design research as the research type. The results showed differences between the learning outcomes of welding technique class grade X students between before they were given the treatment and after, using the kinesthetic learning style demonstration method. It could be seen in the results of the assessment: the average post-test scores in the two classes are the highest on the aspect of the assessment criteria number 2 for the experimental and control groups with a value of 0.4. The lowest is in criterion number 8, with a value of 0.25 for the experimental group. For the control group, the lowest is on criterion number 4, with a value of 0.11. This was proved by the increase of the average score on assessment criteria before and after the treatment. Thus, the demonstration method’s effect using kinesthetic learning style on oxy-acetylene welding practices of welding technique class grade X students at Sayegan 1 Vocational High School.
The relevance of machining practices competencies through industrial needs
Authors: Paryanto P , Munadi S , Wagiran  , Purnomo E , Ardiyanto A , Rahmawati E D 
Published: December 2020

Abstract
This study aims to reveal the relevance of practical competencies in mechanical engineering vocational schools to the industry’s competencies in the Yogyakarta Special Region. This research is a quantitative descriptive study using survey research methods with five research subjects representing the manufacturing industry. The results of this study are, in general, the competence of learning machining practices at Mechanical Engineering Vocational Schools is very relevant to the manufacturing industry’s needs. Details of competency relevance data for each practical subject are as follows: (1) competency in lathe machining 42.10% relevant and 57.90% highly relevant; (2) competence of 40.90% milling machining is relevant and 59.10% highly relevant; (3) competence in grinding 33.33% relevant and 66.67% very relevant; (4) numerical control/computer numerical control and computer aided manufacturing competences 2.90% relevant and 97.10% highly relevant.
Online learning of mechanical engineering subject in the Covid-19 era: strategy, platform and media
Authors: Wagiran W , Rahdiyanta D , Wibowo A E , Sati O L , Badu M R 
Published: December 2020

Abstract
The COVID-19 pandemic has resulted in the application of theoretical and practical sessions in Vocational High School being carried out online. The teacher has carried out learning by utilizing information technology in the midst of existing limitations and constraints. This study aims to determine the implementation of vocational education learning in the pandemic era. There were 3 aspects that were the main focus, namely learning strategies, platforms, and instructional media used during the pandemic, both in theoretical sessions and practical sessions. The research method used was quantitative, with a descriptive approach. The research object was 44 Educators of Mechanical Engineering in Vocational High School. The results obtained were: first, the learning strategy that was widely applied in theory learning was 68% independent assignment and in practical sessions was watching video tutorials 27%. Second, Google Classroom was the most widely used as the LMS platform, both in theory sessions at 64% and practical sessions at 27%. Third, material in document form was the instructional media most widely used by educators in implementing 77% theory learning and 57% practical sessions. This research is expected to provide an overview and recommendations for vocational high school educators, especially in the field of Mechanical Engineering in carrying out learning in the pandemic era.
Improve learning outcomes on physics lesson in vocational high school 1 Magelang
Authors: Nurhadiyanto D , Sasongko B T , Ristianto B N , Ibrahim M R 
Published: December 2020

Abstract

This research aims to improve learning outcomes for students. This research was implemented in 2 cycles; at each cycle, there planning, implementation, observation, and reflection. The result of this research is showed that the inquiry method could improve learning outcomes for the student at Vocational High School 1 Magelang on physics lesson. That improved are showed from the amount of score student was obtained; at the first cycle is 2320; meanwhile, at the second cycle are improve and become 2510. During the 1st cycle, the average score was obtained by students is 72,5. During the 2nd cycle, the average obtained was 78,75. In a case of percentage, students who can reach minimum standard criteria are improved too, at the 1st cycle in the amount of 40,6% and improved become 68,75% in the 2nd cycle. This is showed that the implementation inquiry method is proved that can improve learning outcomes for students.
Analysis of the fracture area of tensile test for natural woven fiber composites (hibiscus tiliaceus-polyester)
Authors: Artha Wirawan Willy , Choiron Moch. Agus , Siswanto Eko , Dwi Widodo Teguh 
Published: December 2020

Abstract
The natural fiber is currently widely applied in aerospace applications and the transportation sector. The problem that often arises is the area of failure can be hardly predicted. This condition making it difficult to use fiber in a more complex application. The purpose of this study is to investigate the fracture area of woven natural fiber composites. Hibiscus tiliaceus bast fibers, as reinforcement, were prepared with alkali treatment using NaOH solution and then were added by the coupling agent. The composite was formed using a woven fiber arrangement with 60:40 fiber-matrices mass ratio using a vacuum pressure resin infusion method. The tensile test on the specimens was done on the ASTM D638-03 standard and fracture analysis was performed based on tensile tests. The results of the study show that the narrowing of the fracture area in composites was better and more predictable.
Alternative design of android-based assessment for dynamic-statics basic on mechanical engineering education
Authors: Didik N. , Widiyanti  , Achmad S. Z. , Ba’id F. N. , Ayu M. V. , Siti Z. 
Published: December 2020

Abstract
The low understanding of mechanical engineering education students on dynamic and statics basic impact on their difficulties to learn the course of statics and dynamics and machine design. For this reason, this study aims to obtain a form of dynamic-statics basic assessment design based on android that is easily accessible anywhere and anytime by students. This research was conducted with an R&D design from the Borg & Gall model consisting of research and information collecting, planning, and developing a preliminary form of product. The result of the development was the basic content of the material which consists of two parts: units and basic mathematics. Second result was product design validation indicators to assess the appropriateness of the content and products created. Finally, the main menus display which leading to learning, quizzes, and exit of assessment system. This assessment design will help students to understand the basic statics and dynamics in stages that could be accessed and studied by students through mobile technologies.
Analysis of heat load in coffee bean drying oven room
Authors: Leksono Edy Duwi , Widiyanti  
Published: December 2020

Abstract
Technology has an essential role in the production process which has a function to increase the quality and quantity of production results. Post-harvest coffee bean drying oven technology is needed to speed up the production process, which has been done manually— design and analysis of coffee bean oven machines to produce the effective performance of the oven machines. The method in this study uses the finite element method using ANSYS (Workbench) V 18.1 to analyze the strength of the material and the heat temperature generated from the combustion system. The results of the analysis obtained an average temperature value of 60ºC, with the highest temperature of 200ºC found in the engine furnace because of the initial heat source.
Correlation between total harmonic distortion of load and error percentage of kwh meter on inverter
Authors: Arif Rahardjo Imam , Muslim Suyitno , Subekti Massus 
Published: December 2020

Abstract
This study aims to describe the correlation between total harmonic distortion (current) of load and error percentage of kWh meter to overcome the electric circuit that supplied from inverter through digital kWh meter. The method used in this research was an experimental method with a design set that consists of an inverter connected to incandescent lamp as linear load through power qualty analyzer and digital kWh meter. Next, researcher observed and recorded the total harmonic distortion (current) and energy on the power quality analyzer that connected to the loads circuit for 1 hour. Then compared the energy measurement results with a digital kWh meter, calculated, and analyzed it as an error to be concluded the correlation between total harmonic distortion (current) of load and error percentage of digital kWh meter on the inverter. The load that presented by incandescent lamp affect to measurement of kWh meter. The energy that be consumed of load of 100 watt during 60 minutes is 102.99 Wh. Based on the measurement data, the average error percentage of kWh meter is 2.52% for linear load that caused by 2.85% of total harmonic distortion (current). The higher the total harmonic distortion (current), the higher the error percentage of kWh meter on the inverter that occurs is. And the equation of the correlation between total harmonic distortion (current) of load and percentage of error in kWh meter in inverter gives the R2 of 0,9236 that means the independent factors are not significant.
Design of low jerk automatics transmission for vehicle using fuzzy control to improve gear shifting quality and low fuel consumption
Authors: Marji  , Harly Muchammad 
Published: December 2020

Abstract
Vehicle driveline is the system used transfer engine traction to the wheels. An automatics transmission is the essential and has high role of the driveline. This research was designing a automatic transmission plant and gear shifting logic base on jerk sensing. Which exploit fuzzy mamdani controller. Input variable were throttle-Up and Down position and rate, desired vehicle speed and speed error and even Jerk sensor, while the output of the control was a eight gear shifting actuator. Shifting algorithm was implemented by state machine, which controlled by fuzzy.
Based on discussion of simulation result, the proposed automatic transmission control system produce lower vehicle jerk response, smoother drive comfort and fuel consumption.
Project-based learning to improve learning outcomes and 21st century skills of vocational high school students competency of light vehicle engineering skills
Authors: Apriadi P.F. , Sudjimat D.A. , Yoto  
Published: December 2020

Abstract
In Indonesia, hard skills are more developed by 90% and 21st century skills are only 10% while the world of work demands students has 21st century skills. Project-based learning is a learning model that makes the project to intregate and gather knowledge based on an experience that learners have in real life. This study used experiments because researchers wanted to find out the differences between the group of students who were taught using project-based learning and the method of lecturing students on the competency of light vehicle engineering skills. This study uses pseudo-experimental design using a 3 x 2 factorial design. The group of students used in the study is class X learners of SMKN Bali Mandara Light Vehicle Engineering competency. It consists one control class and one experiment class. Pretests for knowing the initial ability of high, medium, low and post tests are used to find out the learning outcomes of students. hypothetical test of study results among the group of students taught using a project-based learning model using a lecture model with a coefficient value of F calculated at 4,174 and a signification value of 0.002, so that H0 in reject and H1 are accepted. Testing of the 21st century skills hypothesis between the group of students taught using the project-based learning model and using the lecture model showed an F coefficient value of 4,050 and a significant value of 0.003, resulting in H0 being rejected
The influence of centrifugal particulate matter reducer on gas opacity and fuel consumption of inspection train
Authors: Rozaq Fadli , Artha Wirawan Willy , Hari Boedi W. , Dadang Sanjaya A. , Nurtanto Muhammad 
Published: December 2020

Abstract
This study aims at determining the level of exhaust gas opacity and fuel consumption using a centrifugal particulate matter reducer in a diesel-engine inspection train. The opacity level was tested using a smoke tester and fuel consumption measurement per 30 seconds. The test was carried out by varying the types of diesel fuel including Bio-solar, Dexlite, and Pertamina Dex. Based on the test results, there is a decrease in exhaust gas opacity for the use of Bio solar and Dexlite fuels by 5.75% and 6.3%, while the type of Pertamina Dex gained an increase of opacity by 0.6%, respectively. Besides, it was an escalation of fuel consumption in Bio-solar and Pertamina Dex by 7.7% and 2.7%, respectively, while Dexlite did not change the amount of fuel consumption.
The utilization of moving train as an alternative energy sources in railways with savonius wind turbine
Authors: Utomo Ilham Satrio , Atmaja Dadang Sanjaya , Wicaksana Yoga 
Published: December 2020

Abstract
The purpose of this research is to obtain the dimensions of the savonius wind turbine and to test the calculation results and design of the savonius wind turbine based on the wind speed generated due to the movement of the train in the tunnel. The method used is to calculate the dimensions of the turbine diameter. The results of the calculations show that the savonius wind turbine diameter is 60 cm with a height of 60 cm. The maximum voltage generated is 12.26 V with a current of 0.52 A at a wind speed of 5.7 m/s.
The utilization of waste cooking oil (wco) in simple stove as an alternative fuel for household scale
Authors: Susilawati  , Zamzami Rifaul , Buchori Azhis Sholeh 
Published: December 2020

Abstract
The use of LPG (Liquefied Petroleum Gas) fuel as a substitute for kerosene fuel on the stove has advantages in its excellent combustion process, but there are several weaknesses in its use, namely the risk of gas leakage in the LPG cylinder, and of course the high price of LPG cause increasing the community burden. The purpose of this study was to produce a waste cooking oil simple stove on a household scale. This research used an experimental method which was conducted for 6 (six) months, began from February 2020 to July 2020. The stages of the research were data collection, making waste cooking oil stove design, preparing tools and materials, making waste cooking oil stoves and testing it. The results showed that the flame produced on the waste cooking oil stove was stable, but the resulting fire was still red due to the incomplete combustion process caused by the lack of air/oxygen pumped into the stove. The advantage of this waste cooking oil stove is the simple installation, portable to use, inexpensive manufacturing cost and more safety than using LPG stove.
The Development of Engine Management System’s Learning Media Video in Lightweight Vehicle Engineering Expertise Nasional Berbah Vocational High School
Authors: Fatin N N , Arifin Z 
Published: December 2020

Abstract
This research aimed at (1) developing the engine management system’s learning media video, (2) knowing the feasibility of developing the engine management system’s learning media video with assessment from media and material, also (3) knowing the responses of the lightweight vehicle engineering students of National Berbah Vocational High School toward the engine management system’s learning media video. The research of the engine management system’s learning media video is a research and development (R&D) study that employed 4D development model (Define, Design, Develop and Disseminate). Data collection technique carried out front analyses and questionnaires then analysis of feasibility is carried out by describing it into five categories such as the Likert scale. The results of this development study are the engine management system’s learning media video contained the three materials which were characteristics, functions, and the working of sensors, actuators, and electronic control unit, the media feasibility of this learning media is determined by assessment of material expert (4.3), media feasibility based on media expert (4.1), then student responses as the user get a grade (3.5), so the engine management system’s learning media video was feasible to be used in the learning process.
Development of Tutorial Video Learning Media on Engine Management System Diagnosis
Authors: Agama A A , Solikin M 
Published: December 2020

Abstract
Students readiness before participate in the practice activity need to be well prepared through a tutorial video for practicing. Therefore, this study aimed to (1) develop the Learning Media Video Tutorials for Engine Management System (EMS) practices in the Automotive engineering class, and (2) Identify the feasibility of the learning media developed. A research and development approach was implemented. There were two experts analized the product. The results showed that (1) the product is a tutorial video on a vehicle’s EMS diagnosis using a scanner, (2) the utorial video is an.MP4 form with a file size of 2552 MB, which can be played through smartphones or computers, (3) the contents of the tutorial video is consisting introduction, DTC Function, Current Data Function, and Oscillsocope Function, (4) experts validity revealed that the tutorial video for diagnosing EMS on a vehicle is good and feasible to be implemented in the classroom activities. A further study to identify the effect of the tutorial video on the student’s achievement is suggested.
The Development of Learning Media’s “Tutorial Video for Setting the Front Wheel Alignment With a 3D Spooring Tools” at SMK N 1 Magelang
Authors: Prihantono M R , Usman T , Wakid M 
Published: December 2020

Abstract
This study aims to: (1) Produce a learning media’s tutorial video for setting the Front Wheel Alignment with a 3D Spooring tool; (2) find out the feasibility of developing a tutorial video for setting the Front Wheel Alignment with a 3D Spooring tool for learning media on Light Vehicle Engineering Department in Vocational High School 1 Magelang. The type of this research is Research and Development (R&D) using the 4D model (define, design, develop, disseminate) because more clearly the steps in each stage of this model. Data collected by observation, interviews, and questionnaires. The video feasibility assessment in this study was conducted by one material expert, one media expert, and 30 students of XII OA class in Vocational High School 1 Magelang and then converted to qualitative data with five eligibility categories. The results of this study are tutorial video for setting the front wheel alignment with a 3D spooring tool which gets a score of 3.94 (feasible) from material experts, from media experts get a score of 4.11 (feasible), and student opinions get a score of 4.41 or 88.11% (very feasible) so that learning media’s tutorial video for setting the front wheel alignment with a 3D spooring tool is very suitable for use in learning.
Developing Learning Media of Electronic Fuel Injections (EFI) System Android-Based in Piri 1 Yogyakarta Vocational High School
Authors: Ikhsan M R , Solikin M , Rohman J N 
Published: December 2020

Abstract
This research aims to: (1) producing android-based Electronic Fuel Injections (EFI) learning media; (2) knowing the feasibility of android-based EFI learning media; and (3) knowing students’ responses to the learning media of the Android-based Electronic Fuel Injections (EFI) system. The rsearch was conducted using the Borg and Gall model modified by Sugiyono. The technique of data collection is done by questionnaire, while the data analysis technique uses descriptive quantitative methods. The results of the research were obtained: (1) products in the form of Android-based Electronic Fuel Injections (EFI) system learning media; (2) learning media in terms of material included in the very feasible category and in terms of media included in the very feasible category; and (3) students’ responses when testing the product, the aspects of use are included in the category very easily and the aspects of usefulness are included in the category of very useful. The response of students when testing the use, the aspects of use included in the category is very easy and the usefulness aspects including the category is very useful.
Wheel-hub and Upright Development on GE 19 Racing Cars for International Student Car Competition
Authors: Wakid M , Hidayat N T , Setiawan W D 
Published: December 2020

Abstract
This study aims to produce proper designs of the wheel hub and upright components of a GE 19 racing car. The design results were analyzed using analysis software to ensure the strength of the steering system components is safe in every driving condition. The upright and wheel hub which are designed are the developments of the EVO 14 racing car. The development This development was carried out because there was a change in the drive system from which the car initially used front drive to rear drive. In addition, the development also aims to minimize the occurrence of cracks in the upright and wheel hub components. The method used in this development is the Engineering Design Process model. The object of this development is the wheel hub and upright design which will then be applied to the GE 19 car to participate in the 2019 International Student Car Competition. The data analysis technique used is a power simulation using the Finite Element Analysis (FEA) feature on Solid works. FEA simulation data is in the form of stress contour images and safety factor values for the wheel hub and upright components of the steering system at each driving condition. The results of this development indicate that the design of the upright components and wheel hub of the GE 19 car has good strength and safety factors in every driving condition.