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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 14 Documents
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Search results for , issue "Vol 2, No 2 (2013): October" : 14 Documents clear
PENINGKATAN KEAKTIFAN DAN HASIL BELAJAR SISWA MELALUI PENERAPAN METODE PEMBELAJARAN PROBLEM SOLVING PADA PELAJARAN KELISTRIKAN OTOMOTIF KELAS XI SMK NEGERI 5 SURAKARTA Firdzaus K, Muhammad
Jurnal Nosel Vol 2, No 2 (2013): October
Publisher : Jurnal Nosel

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Abstract

The purpose of this research improves activeness and learning outcomes of student XI TO B class on learning theory at automotive electrical lesson SMK Negeri 5 Surakarta for academic year 2012/2013. This data the research were activeness and learning outcomes of student. The Collecting of the data by using four ways, there was interview, observation, test, and questionaire. The observation sheet use six indicators of activeness : asking, argue, listening, reading, writing, and discussion. The data of the research was analyzed with descriptive analyse techniques. The research includes action research in education, namely classroom action research (PTK). This research was by one meeting activities before the cycle. PTK was carried out with two cycle?s, each cycle two meeting?s with one test in last of second meeting. Based on the result, result of research  was concluded that application of Problem Solving Learning  Method improved 9,25% activeness of  student XI TO B class on learning  theory   at  automotive   electrical   lesson SMK  Negeri  5  Surakarta  for academic year 2012/ 2013. Beside that application of Problem Solving Learning Method improved learning outcome of student XI TO B class on learning theory at automotive electrical lesson SMK Negeri 5 Surakarta for academic year 2012/2013.
PENGARUH VARIASI JUMLAH PLAT STAINLESS STEEL DAN VARIASI PEMASANGAN SALURAN BROWN GAS PADA ELEKTROLISER TERHADAP TORSI DAN DAYA SEPEDA MOTOR SUPRA-X 125R CW TAHUN 2010 Cahyono, Nurbudi
Jurnal Nosel Vol 2, No 2 (2013): October
Publisher : Jurnal Nosel

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Abstract

The  aims  of  this  study  are  for  measuring  the  torque  and  the  power  of  Supra-X 125R CW motorcycle of 2010 after fitted the electrolyzer by varying the number of stainless steel plates and measuring the torque and the power of Supra X-125 R CW motorcycle of 2010 after fitted the electrolyzer by varying the installation of brown gas channel (before the carburetor and after the carburetor).The research was quantitative descriptive one with experimental design.  The data was collected by using documentation method.The results of this study are  the torque and the power are best obtained by using electrolyzer  II  (8  plates)  with  the  location  of  brown  gas  channel  before  carburetor. Improvement  the  torque  as  many  as  9,  33  Nm  or  22,12%  from  standard  torsion  and improvement the  power as many as 8,17 HP or 13% from standard power. Conclusion of the research is the use electrolyzer II with electrode construction of 8 stainless steel plates and brown gas channel mounted after carburetor is the most ideal arrangement for Supra-X 125 R CW motorcycle.
PENGARUH VARIASI SUHU TUANG TERHADAP KEKERASAN DAN STRUKTUR MIKRO PADA HASIL REMELTING ALUMINIUM TROMOL SUPRA X DENGAN CETAKAN LOGAM Cong Jiwo Rogo, Geger Kokok
Jurnal Nosel Vol 2, No 2 (2013): October
Publisher : Jurnal Nosel

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Abstract

The  objective  of  this  research  is  to  investigate  the  optimal  casting  temperature  to produce  the  best  molding  on  the  hardness  and  microstructure  of  the  aluminum  remelting product of Supra X motorcycle drum brake with metal mould.This  research  used  three  casting  temperature  variations,  namely:  7000C,  7250C,  and 7500C. The aluminum material  used in this molding was used back drum brake aluminum of Supra X motorcycle.This  research  used  the  experimental  method  with  the  descriptive  data  analysis.  The data of the research were gathered through the calculation of the hardness of each specimen and the microstructure photograph-taking of each specimen. The result of the calculation of the hardness was then displayed in graphs for analysis.The  result  of  the  research  shows  that  the  highest  molding  hardness  is  found  in  the casting  temperature  variation  of  7000C  with  the  value  of  86.17  BHN,  whereas  the  lowest molding  hardness  is  found  in  the  casting  temperature  variation  of  7500C  with  the  value  of 83.03  BHN,  and  the  hardness  of  the  drum  brake  aluminum  of  Supra  X  aluminum  itself  is 90.36BHN. Based on the microstructure photograph, the casting temperature variation of 7000C  results  in  the  best  structure  granules  as  indicated  by  the  tiny  size  of  Al-si  granules, compared  to  the  results  of  the  other  casting  temperature  variations  of  7250C,  and  7500C respectively of which the size of granules become larger along with the increase of the casting temperature variations. Thus,  based  on  the  result  of  the  research,  a  conclusion  is  drawn  that  the  casting temperature variation of 7000C results in the most optimal hardness and good microstructure, and among the tree casting temperature variations the casting temperature variation of 7000C results  in  casting  temperature  of  which  the  quality  of  the  aluminum  remelting  product approaches the quality of back aluminum drum brake of Supra X motorcycle. The hardness of the aluminum remelting product decreases along with the increase of the casting temperature variations, and the size of microstructure of the granules also becomes larger along with the increase of the casting temperature variations.
PENGARUH PERUBAHAN WAKTU PENGAPIAN (IGNITION TIMING) TERHADAP EMISI GAS BUANG CO DAN HCPADA SEPEDA MOTOR VEGA R 110 CC TAHUN 2008 DENGAN BAHAN BAKAR LPG (LIQUEFIED PETROLEUM GAS) Rastoto, Nur Dyan Enggar
Jurnal Nosel Vol 2, No 2 (2013): October
Publisher : Jurnal Nosel

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Abstract

The purpose of this research are: (1) To know the effect of modified ignition timing toexhaust emissions CO and HC on motorcycles Yamaha Vega R 110 CC in 2008 that use LPGfuel. (2) To know amount the effect of modified ignition timing to exhaust emissions CO andHC on motorcycles Yamaha Vega R 110 CC in 2008 that use LPG fuel by ignition timing 7?,10?, 13? BTDC.Based on this research can be conclude: (1) Modified ignition timing on the use of LPGfuel effect on the result of exhaust gas emissions levels of CO and HC. (2) The results gas emissionslevels  of  CO  0.041%  by  ignition  timing  7? BTDC,  the  results gas  emissions  levels  of  CO0.052% by ignition timing 10? BTDC, while the result gas emissions levels of CO 0.098% by13? BTDC. (3) Gas emissions levels of HC 130 ppm by ignition timing 7? BTDC, gas emissionslevels  of  HC  272.67  ppm  by  ignition  timing  10? BTDC,  while  gas  emissions  levels  of  HC473.33  ppm  by  ignition  timing13? BTDC.  (4)  The  ignition  timing  13? BTDC  increase  theresults  exhaust  gas  emissions  levels  of  CO  and  HC,  while  ignition  timing  7? BTDC  willdecrease the result exhaust gas emissions of CO and HC but also decrease engine power.

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