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Sugianto '
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Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Materials Science & Nanotechnology Mathematics Physics

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PENENTUAN KALOR DARI CAMPURAN ARANG TEMPURUNG KELAPA DENGAN CANGKANG KELAPA SAWIT DI TINJAU DARI PERBANDINGAN CAMPURANNYA Doni Pandra; Sugianto '; Maksi Ginting
Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Vol 1, No 2 (2014): Wisuda Oktober 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam

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A research has been  carried  to determine the  calory  value of the  mixture of  coconut charcoal and palm oil shells  using an  experimental method. This experiment used a bomb callorimeter  to measure the physical parameters  of the sample (callory value, sulfur  total, total ash  and total moisture  of  content). Each sample was  treated  by  the same pressure and volume.  The samples  were  taken from two different materials, namely  charcoal  of  coconut shells  and oil palm shells.  Four different samples  were made from  combination of  grain size  ratio  of 60  :  40 and 40 : 60.  The sample  A and C  were mixture of  coconut shell charcoal  and  charcoal oil palm shells  with  60: 40 ratio, while the sample B and D were mixture of coconut shell Charcoal and charcoal oil palm shells for 40: 60 ratio. Results of the test showed the value of the physical parameters i.e callory value, sulfur  total, total ash and total moisture of content respectively  for the sample A  were  6.379  calories cal/g, 0.18%, 1.43%, and  8.00%,  for  the sample B  were 5.732 calories cal/g, 0.22%,  1.30% and  8,48 %,  for  the sample C were  5.787 cal/g, 0.20%,  10,91%, and 7.19%,  and  for  the  sample  D  were  5.395 calories cal/g, 0.20%, 11.24%, and 7,07%.  The sample  A  had  larger  grain density so that the  grain samples were  more solid.  The denser  of the material was  the higher the value of the heat from the charcoal.  From the overall data  obtained, it was  indicated  that  the sample  A had the highest quality value compared to the other samples.
ANALISA PENGGUNAAN LENSA SILINDER UNTUK MENGUBAH BENTUK BERKAS LASER DIODA MENJADI BENTUK GARIS Muhammad Mashuri; Minarni '; Sugianto '
Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Vol 1, No 2 (2014): Wisuda Oktober 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam

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A research on the application of cylindrical lenses to change beam shape of diode lasers from  eliptical to line shape has been conducted.  The beam characteristic of the lasers before and after using the lenses were analyzed by a calibrated photodiode and a CCD camera. The distance between CCD camera and the lenses were also varied to obtain the optimal length of the line.  The diode lasers used were  λ=830 nm Coherent diode laser with beam size 0,6 mm and 0,9 mm in x and y axis and  λ=638 nm Aixiz diode laser with beam size 1,2 mm and 1,6 mm in x and y axis were used.  Three  cylindrical lenses with three  different focal length were used whice were 50 mm, 75 mm, and 95 mm respectively.  The results showed that the maximum line lengths (L) of  λ=830 nm diode laser were 1,86 mm, 2,55 mm, and 1,39 mm respectively. For the  λ=638 nm diode laser the maximum line length (L) were 3,74 mm, 4,32 mm, and 3,87  mm respectively to the same focal length. The result also showed that the bigger λ produced the shorter line (L) than the smaller λ. For the biggest focus need the longest distance (z) to produce the longest line.
PRAKTIKALITAS PERANGKAT EKSPERIMEN TEORI KINETIK GAS UNTUK FISIKA SEKOLAH MENENGAH ATAS Sugianto '; M. Nor '; Zulhelmi '
Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan Vol 3, No 2 (2016): Wisuda Oktober 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan

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Abstract: This study aims to test the experiment equipment practicability of gas kinetic theory that consist of experiment tools and the escort book of experiment tools utilizing. The approach used in this study is Research and Development with 4D Model. The data obtained from practicability questionnaire. The respondent were from teachers and students that acted as user. The data was analyzed uding Ms. Excel. The practicability score test by students and teachers been categorize in high and very high. This study result indicate that the experiment equipment of gas kinetic theory is serve the purpose of physics learning media in school.Keyword : practicality test, experiment equipment, 4D Model
Co-Authors Andi Syahputra Anthika ' Dema Siska Afrilla Dewi Muliana Doni Pandra Elisa Saadah Erman Taer Fitria Puspita Sari Hari Rizki Pratama Jasmareni Sri Kurniati Baalijas Juandi Juandi M. Nor ' Maksi Ginting Martha Rianna Minarni ' Muhammad Mashuri Mustika, Widya Sinta Nur Akmal Riad Syech Rika ' Rika Utari Rizki Amelia Romadona ' Rutmayanti Pandiangan Saktioto Saktioto Usman Malik Walfed Tambunan Yudi Candra Yusuf Syetiawan Zelviana ' Zulhelmi, Zulhelmi Zulkifli '