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Journal of Mechanical Engineering Learning
Published by Universitas Negeri Semarang
ISSN : -     EISSN : -     DOI : -
Core Subject : Engineering,
Mechanical Engineering
Arjuna Subject : -
Articles 10 Documents
 1 
Search results for , issue " Vol 3 No 1 (2014)" : 10 Documents clear
PENGARUH TEMPERATUR PADA PROSES TRANSESTERIFIKASI TERHADAP KARAKTERISTIK BIODIESEL DARI MINYAK GORENG BEKAS Atmoko, Wahyu Puji
Journal of Mechanical Engineering Learning Vol 3 No 1 (2014)
Publisher : Journal of Mechanical Engineering Learning

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Abstract

The purpose of this research was to determine the effect of temperature on the quality of the biodiesel transesterification process. Raw materials used in the making process of biodiesel is waste cooking oil. This Research using the transesterification process by react catalyst and methanol then mixed along with the waste cooking oil. The mixing takes one hour each mixing using a variation of temperature of 30°C, 40°C, 50°C and 60°C. Then the transesterification proceeds deposited for approximately 24 hours. The results of the precipitation in the form of biodiesel and glycerin is separated. The biodiesel washing process 4 times washing and drying biodiesel by heating with the temperature reaching 112°C and cooling. Test results on the density characteristics of temperature variation 30°C and 40°C of 0.8779 g / ml, 50°C for 0.8771 g / ml and a temperature of 60°C values ​​obtained 0.8747 g / ml. On testing the viscosity temperature 30°C, 40°C, 50°C and 60°C resulting value 5.258 mm2 / s, 5.078 mm2 / s, 4.939 mm2 / s, and 4.728 mm2 / s. For the test results to the flash point temperature of 30°C is 202.5°C, at 40°C temperature variation of 198.5°C, at temperature 50°C obtained 196.5 ° C and 60°C at 192.5°C. From the test data, the results obtained characteristic density, viscosity and flash point. The results showed that all of the testing of biodiesel produced meets the standard characteristics of biodiesel. It can be concluded that the use of variations in temperature do not affect the characteristics of the biodiesel. In addition, biodiesel research results according to the criteria of diesel motor fuel.
PENINGKATAN HASIL BELAJAR DENGAN PENERAPAN MODEL PEMBELAJARAN KONSTRUKTIVISME BERBASIS MEDIA PERAGA PADA MATERI ELEKTROPNEUMATIK DALAM MATA KULIAH PNEUMATIK HIDROLIK Zamroni, Muhammad Rifqi
Journal of Mechanical Engineering Learning Vol 3 No 1 (2014)
Publisher : Journal of Mechanical Engineering Learning

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This study aims to determine whether there is an increase in student learning outcomes between the use of expository learning model with the model of constructivism. This study uses a quasi-experimental study with a type of pattern pretest-posttest control group design. The study population was 2013 semester of the academic year students who took the 5-Hydraulic Pneumatic course consisting of 2 classes with a number of 90 students. The samples were taken with a saturated sampling method, one class as control group numbering 40 students and one class as experimental group numbering 40 students,. The control group will be given expository teaching model, while the experimental group was given a model of constructivism. Based on the research results obtained, that the average competence elektropneumatik learning outcomes in the control group increased to 58.64 originally 77.41. In the experimental group the average results of the original study increased to 87.21 58.15.
PERBEDAAN HASIL BELAJAR KOMPETENSI MENJELASKAN PROSES-PROSES MESIN KONVERSI ENERGI MENGGUNAKAN MODEL PEMBELAJARAN SNOWBALL THROWING DENGAN MODEL PEMBELAJARAN LANGSUNG Irawan, Zudi
Journal of Mechanical Engineering Learning Vol 3 No 1 (2014)
Publisher : Journal of Mechanical Engineering Learning

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Abstract

This study aims at finding out if the differences and a significant increase in learning outcomes between the experimental group were taught by Snowball Throwing learning model and the control group were taught with direct instruction on competencies Explaining Processes Energy Conversion Machine. In this study research design pre-experimental design with a static group comparison approach. The population was class X Light Vehicle Engineering (X TKR) SMK N 10 Semarang academic year 2013/2014. Samples was determined using cluster random sampling technique and derived class X TKR 2 as the experimental group and class X TKR 3 as a control group. The results of the analysis of data showed the average value of the initial data for the experimental group was 51.68 then after the experiment increased to 65.33 which means an increase of 13.65 (26%) and for the control group the average value of the initial data for 53.94 then after the experiment increased to 63.97 which means an increase of 10.03 (19%). It concluded there was no difference and a significant improvement in learning outcomes, however the use of Snowball Throwing learning model has been better than direct instruction because of increased learning outcomes experimental group is greater than the control group.
MODEL PELAKSANAAN PRAKTIK KERJA INDUSTRI (PRAKERIN) KOMPETENSI KEAHLIAN TEKNIK PERMESINAN DI SMK NEGERI 1 KEDUNGWUNI Wahyoto, Tutur
Journal of Mechanical Engineering Learning Vol 3 No 1 (2014)
Publisher : Journal of Mechanical Engineering Learning

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Abstract

This study aims to describe the implementation of work practices in the industry SMK Negeri 1 Kedungwuni, cooperation with DU/DI and the dual system of education models used in prakerin. This research uses descriptive qualitative method. Research subjects Machinery Engineering class XII student, school as an organizer and DU/DI as a cooperation partner. Informants consisted of a tutor, Head of Engineering Machinery, students and DU/DI. Data collection techniques of observation, questionnaires, interviews and documentation. Results showed (1) prakerin implementation has been running very well, from the preparation stage prakerin, implementation and evaluation prakerin. Implementation prakerin by Machinery Engineering class XII students were divided into two waves. (2) collection of data through observation carried out in schools, a questionnaire was given to students of class XII Engineering Machinery, interview with the Head of Engineering Machinery, tutor, student and DU/DI. Documentation is done when the research is ongoing. The conclusions of this study: overview prakerin in SMK Negeri 1 Kedungwuni involves three stages: preparation prakerin aspects, implementation and evaluation prakerin. Model of the cooperation with DU/DI a MoU, a model release prakerin a block models for the students to concentrate on activities prakerin. Advice for schools to continue to maintain cooperation as well as possible because it has been running very well and prakerin value should be included in the certificate and the absence of a column value in the report cards.
PENGARUH PENGGUNAAN MEDIA VIDEO TERHADAP HASIL BELAJAR SISWA PADA KOMPETENSI DASAR PENGOPERASIAN MESIN BUBUT Nugraha, Alfian Andy
Journal of Mechanical Engineering Learning Vol 3 No 1 (2014)
Publisher : Journal of Mechanical Engineering Learning

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This study aims to determine the improvement of student learning outcomes and determine the effect of the use of video media and to know how big influence on learning outcomes. This study used a quasi experimental design (Quasi Experimental Design) to design forms Nonequivalent Control Group Design. The population is the entire class XI student of SMK Muhammadiyah TP in Salatiga, whereas samples taken were students of class XI TP 3 the number of 37 students. Data collection using questionnaires or tests and questionnaires. T - test analysis results obtained tcount = 2.097 > table = 1.69, then the better the experimental group than in the control group. Student learning outcomes in the pre-test showed an average of 65.67 for the experimental group and the control was 68.43, while the learning outcomes of students in post-test shows the average experimental group was 79.83 and 74.71 for the control, then learning using video media can improve student learning outcomes. From the results of the regression analysis obtained 32,72% of student learning outcomes are influenced by the use of video media.
STUDI KOMPARASI PENGGUNAAN MODEL PEMBELAJARAN KOOPERATIF TIPE TGT (TEAM GAMES TOURNAMENTS) DAN PEMBELAJARAN KONVENSIONAL TERHADAP HASIL BELAJAR KOMPETENSI MEMAHAMI DASAR-DASAR MESIN Zuhdi, Mukhamad Ali
Journal of Mechanical Engineering Learning Vol 3 No 1 (2014)
Publisher : Journal of Mechanical Engineering Learning

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Abstract

This study aimed to determine differences in student learning outcomes to understand the basics of competency using cooperative learning machine TGT (Team Games Tournaments) with conventional learning and to determine student learning outcomes in the competence to understand the basics of the engine between cooperative learning TGT (Team Games Tournaments) with conventional learning . This study used an experimental method with pre-test pattern post -test control group design . The population of this research were 96 students from three classes in vocational X TKR SMK Darussalam Balapulang which take competence to understand the basics of the machine. Determination of the study sample stratified random sampling technique, X TKR 1 as the experiments class and class X TKR 2 as the control class. Collecting data using methods of documentation, observation methods and test methods. Data analysis using statistical descriptions and t test. Competency learning outcomes to understand the basics of the machine in class X TKR SMK Darussalam Balapulang using cooperative learning TGT (Teams Games Tournaments) better than conventional learning.
PENINGKATAN HASIL BELAJAR MATA PELAJARAN PEMPROGRAMAN CNC DASAR MENGGUNAKAN SOFTWARE SIMULASI SWANSOFT SINUMERIK 802Se/C Setiawan, Agus
Journal of Mechanical Engineering Learning Vol 3 No 1 (2014)
Publisher : Journal of Mechanical Engineering Learning

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Destination of this research is how to use this software simulation swansoft able to improve the practice of 3 grade students on courses machining base CNC use CNC machine type Sinumerik 802Se/c turning. The population was 3 grade students of Machinical Engineering Education skill courses totaling 62 of 2 class. Methods of data collection using the documentation and performance test also observation sheet. The result showed that there was an incrase in students learning outcomes pre-test score was 6,38 after initially getting treatment increased by 7,76. This is in contrast with the control group increased pre-test score 6,33 to 6,99. The result of the test T post-test obtained t = 12,024 for practice. Therefore,  tcount=10,943 > ttable = 1,67. Therefore, the implementation software simulation swansoft would make a better outcome to the students.
HASIL BELAJAR MATA PELAJARAN CNC MENGGUNAKAN MEDIA SIMULASI SWANSOFT CNC PADA PESERTA DIDIK SMK NEGERI 1 MAGELANG Panuntun, Ginanjar Bagus
Journal of Mechanical Engineering Learning Vol 3 No 1 (2014)
Publisher : Journal of Mechanical Engineering Learning

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Abstract

Swansoft CNC simulation media is a complete simulation media which is the same as the real CNC machine. The purposes of this study were to determine the learning outcomes before and after treatment, an increase in the experimental class and comparison with the control class. The researcher used pre-test and post-test control group design . The sample itself is taken is taken in TMC class as a control group, and TMD class as an experimental group. The results showed the average post-test learning outcomes t_count = 3,763 < t_ table = 1.68. Because t is in the region of rejection of Ho, therefore, the experimental group was higher than the control group. The average of pre-test learning outcomes of experimental group was 64,60 and the control group 64,23. The average of post-test learning outcomes experimental class was 84.20, meanwhile the control class 77.31 . The researcher concludes that 1 ) The average of pre-test learning outcomes are relatively similar in both groups and low categorized; 2 ) The average of post-test learning outcomes experimental class was 84,20, meanwhile the control class 77.31 ; 3) Both groups is significantly increased ; 4 ) The results of the experimental class learning is better than control class. It is suggested for the teachers to use Swansoft CNC simulation media. For the further research, investigating the psychomotor as well also needed.
PENERAPAN PEMBELAJARAN MODEL EXPERIENTIAL KOLB UNTUK MENINGKATKAN HASIL BELAJAR SISWA PADA KOMPETENSI MEMAHAMI DASAR - DASAR MESIN Laksana, Nur Akhlis Sarihidaya
Journal of Mechanical Engineering Learning Vol 3 No 1 (2014)
Publisher : Journal of Mechanical Engineering Learning

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Abstract

In the observation made ​​in SMK Negeri 1 Ampelgading Pemalang , teachers still use the learning model on conventional model of learning that occurs in one direction , so the learning process ari teachers only. Issues raised in the study is that there is a difference or not between the use of Kolbs experiential learning model and conventional learning on competency models to understand the basics of the machine ? The goal is to prove judging or not there is a difference between Kolbs experiential learning model with the conventional model of learning to understand the basic competence - the base engine . In this study using experimental research designs is true experiment , because in this design the researcher controls all external variables that affect the experimental procedure used in this study is a pretest - posttest design types desaign control group . This research was conducted at SMK Negeri 1 Ampelgading . The population in this study was 5 class X class 2013/2014 . The samples used were 2 classes of class X TKR 1 number of 39 students of class X and TKR 4 number of 40 students . Class X TKR 1 as experimental class X and class 4 as a class kontrol.Penggumpulan TKR data using statistical and data analysis using the t test . Based on the analysis of data obtained that the average - average results of a study to understand the basic competence - basic engine in the experimental group were originally 51.20 into 82.82 or an increase of 71 % , whereas in the control group who initially had an average of 52 , 33 to 65.5 , or an increase of 29 % . calculation results of data analysis there is a difference between Kolbs experiential learning model with the conventional model of learning to understand the basic competence - the base engine . For teachers , the use of the application of Kolbs experiential learning can be one of the solutions and alternatives to improve student achievement.
PENERAPAN MODEL PEMBELAJARAN GROUP INVESTIGATION (GI) BERBANTUAN MODUL SEKOLAH UNTUK MENINGKATKAN HASIL BELAJAR SISWA PADA KOMPETENSI DASAR MENGGUNAKAN ALAT UKUR MEKANIK Pribadi, Agung Rakhmat
Journal of Mechanical Engineering Learning Vol 3 No 1 (2014)
Publisher : Journal of Mechanical Engineering Learning

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Abstract

The purpose of this action research is to increase the basic competence of learning result of the competence based using mechanical measuring devices through the application of Group Investigation (GI) learning model  assisted school modules, and to increase students learning activities. The reseach subject are students of SMK Muhammadiyah 1 Muntilan grade X TP4 year 2013/2014 with 37 students by using two cycles. Each siclus consist of 4 steps they are planning, action, observation, and reflection. The method of collecting data is using documentation, observation and test. The result of this research is there are increasement learning result of the students in basic competence using mechanical measuring devices. Based on the data analysis and content the result it self are, first, applying learning model of group investigation that helped by school module are able to increase the students learning result, it can be known from the students result of first cycle that are 61,4 become 79,3 and in second cycle with the result prosentation from first cycle that are 48,65% become 81,08% in second cycle. The second, increasing students activities from 64% in first cycle become 84% in second cycle. From this data collection method, it was known that the prosentation of the students result in basic competence by using mechanical measuring devices are 45,95% students result KKM, and that have no good result are 54,05%. After applyn the learning model GI that helped by using school module, the students learning result are increase in first cycle and second cycle , that are 48,65% in first cycle become 81,08% in second cycle. It means that the learning model type GI that helped by using school module in basic competence by using mechanical measuring devices are able to increase students learning result at SMK Muhammadiyah 1 Muntilan grade X TP4.

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