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INDONESIA
Jurnal Nosel
Published by Universitas Sebelas Maret
ISSN : -     EISSN : -     DOI : -
Core Subject : Education, Engineering,
Education Mechanical Engineering
Arjuna Subject : -
Articles 4 Documents
 1 
Search results for , issue "Vol 4, No 4 (2016): April" : 4 Documents clear
PENINGKATAN MOTIVASI BELAJAR DAN HASIL BELAJAR SISWA MELALUI PENERAPAN STRATEGI PEMBERIAN TUGAS MATA PELAJARAN PRAKTIK PEMESINAN BUBUT SISWA SMK NEGERI 2 SURAKARTA TAHUN PELAJARAN 2014/2015 Pratama AG, David Ferdy
Jurnal Nosel Vol 4, No 4 (2016): April
Publisher : Jurnal Nosel

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Abstract

The purpose of this research is to improve the student?s learning motivation and learning achievement through the implementation of assignment strategy on lathe machining practices subject student of SMK Negeri 2 Surakarta.  This research is a classroom action research. It was performed by two cycles in which each cycle consisted of planning, acting, observing and reflecting. The subjects of this research are 31 students of TPM C second grade of SMK Negeri 2 Surakarta. The data source was taken from teacher and students. The techniques of collecting data are observation, test, documentation, and questionnaire. The data validity uses content and construct validity. The techniques of data analysis use comparative analysis and descriptive statistic. The result shows that: (1) the implementation of assignment strategy could improve the learning motivation. It is shown by the percentage of students motivation before the implementation which is 31,85%. After the first cycle is done, the percentage increases in the number of 51,18%, and 78,1% increases in the second cycle, (2) the implementation of assignment strategy could improve the learning achievement. It is shown from the precentage of students having test score more than 75. Before application of assignment strategy there are 45,16%, after the implementation were done, the precentage of the students achievement is 54,84% in the first cycle, and 87,1% and increases in the second cycle. The conclusion of this research is the implementation of assignment strategy could improve the students learning motivation and achievement the subject of lathe machining practices subject student SMK Negeri 2 Surakarta.
STUDI PEMETAAN KOMPETENSI PROFESIMEKANIK OTOMOTIF RODA 4 DI BENGKEL OTOMOTIF DI SURAKARTA TAHUN 2012 Mardowo, Sri Wahyu
Jurnal Nosel Vol 4, No 4 (2016): April
Publisher : Jurnal Nosel

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Abstract

Maping of mechanic automotif competension in Surakarta. The Result, we can conlude that : (1) the profile automotive mechanic in Surakarta is relevance with Indonesian National Work Competence Standards(SKKNI), the precentage  of relevance reached  88.14%.  (2) The research found that there was  preferred mechanical competence there were; competence attitude, encouragement, hard worker, discipline, responsibility, dedication, service, honest  and creativity had level as high as 100%, obedient was 96 %,  carrier planning was 92 %, service orientation 100%, honesty 100%
PENGARUH JUMLAH BLADE AIRFOIL TIPE NACA 4415 TERHADAP HASIL DAYA LISTRIK TURBIN ANGIN SUMBU HORISONTAL Lambang P, Danur
Jurnal Nosel Vol 4, No 4 (2016): April
Publisher : Jurnal Nosel

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Abstract

The purposes of this study are to investigate effect of number of blades on a non-twisted blade wind turbines type airfoil NACA 4415 on the electrical power generated. Experimental study is used on this research. The sample was Horizontal Axis Wind Turbine (HAWT) with non-twisted blades airfoil NACA 4415. There were three variation of the number of blades those were the number of blades of two, the number of blades of three, and the number of blades of four. Wind speed variation used in this study was 2.5 m/s, 3.5 m/s, and 4.5 m/s. The data collected by conducting test of HAWT by using artificial wind, electric power generated was read and recorded by data logger. The data from the research was put into the table and shown in the form of graphic, then analyzed. Based on the result of the research, it can be concluded that there was an effect of variation of the number of blades toward electrical power of wind turbines. Three blades HAWT produced the biggest electrical power that was 0.7222 W with 4.5 m/s of wind speed.
KAJI EKSPERIMENTAL PERFORMANSI PENGEREMAN KAMPAS REM SERAT BAMBU SEBAGAI BAHAN ALTERNATIF KAMPAS REM MOBIL Saputro, Aditya Eko
Jurnal Nosel Vol 4, No 4 (2016): April
Publisher : Jurnal Nosel

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Abstract

The purpose of this research were: (1) To learn the effect of composition variations with materials bamboo powders, Aluminium (Al), magnesium oxide (MgO), and polyester resin toward the friction coefficient value at the braking performance test. (2) To learn the composition variation brake pad with material friction bamboo powders the most ideal friction coefficient value with Nissin brake pad as comparison. (3) To compaired braking power of car brake shoe with bamboo powders supplements as composite materials to standard Nissin brake pad. This study was an experimental study with descriptive quantitative data processing. Data were obtained by using prony brake engine braking performance test. The sample processed by making 3 composition of brake lining, each composition is made of 3 pieces of samples into (1A, 1B, 1C; 2A, 2B, 2C; 3A, 3B, 3C). Data obtained from the results of research put into a table and displayed in graphical form, then analyzed. Based on the result of this study concluded that: (1) Variations composition the brake lining effect on the value of friction coefficient in the braking performance test. The increasing percentage composition of bamboo powder, will lower the braking performance (friction coefficient) brake lining samples, as well as the increasing percentage of magnesium oxide (MgO) then also improve braking performance (friction coefficient). (2) The best friction coefficient is composition sample 1 with composition of 35% bamboo powder, aluminium 15%, MgO 35%, resin 15% by 0,404 friction coefficient value. (3) From the research results can be know that car brake shoe with bamboo powders supplements as composite materials have the good friction coefficient more than Nissin brake pad if the review from results the braking performance (friction coefficient).

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