Department of Physics: Recent submissions
Now showing items 1481-1500 of 2666
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Penggunaan Model Tisean dan Wavelet untuk Analisis Simulasi Komputasi Pemetaan Validasi Prediksi Curah Hujan di Sumatera Utara
(Universitas Sumatera Utara, 2011)North Sumatra Province is one of the province in Sumatra island weather conditions and climate is strongly influenced by the local topography. North Sumatra region on the basis of classification Oldeman divided over 7 ... -
Biodiesel dari Transesterifikasi Minyak Jarak Pagar(Jatropha Curcas) Ber-Asam Lemak Bebas 7,78% dengan Katalis Asam Polistirena Sulfonat(PSS) 1% dan 4% dalam Waktu 6 Jam terhadap Sifat Fisika
(Universitas Sumatera Utara, 2011)Production of castor oil biodiesel has been done by transesterification process. The castor oil was previously tested for titration and produced 7.78% free fatty acid. The process was done in an autoclave by mixing the ... -
Pembuatan dan Karakterisasi Komposit Papan Partikel dari Bahan Polipropilen (PP) Daur Ulang dan Serbuk Tempurung Kelapa (STK)
(Universitas Sumatera Utara, 2011)An investigation of composite particle had done that aims to meet the needs of the growing timber. Board materials can include wood composite boards and non timber which has lignoselulosa (such as coconut shell powder). ... -
Analisis Intrusi Air Laut pada Sumur Gali dan Sumur Bor dengan Metode Konduktivitas Listrik di Kecamatan Medan Marelan
(Universitas Sumatera Utara, 2011)It had conducted a research on analysis of intrusion of sea water in to the dig and drill wells by electrical conductivity at sub district of Medan Marelam in order to study the intrusion level of sea water to the dig ... -
Pembuatan dan Karakterisasikomposit Papan Partikeldari Limbah Polipropilena Daur Ulang dengan Serbuk Kayu Sembarang
(Universitas Sumatera Utara, 2011)A research to produce of composite particle board made from sawdust as a filler and recycled polypropylene as a matriks on the physical properties and mechanical properties that meet quality standart. Indonesian standard ... -
Pembuatan Biodiesel dari Minyak Jarak Pagar (Jatropha Curcas ) Menggunakan Katalis Koh 4 % dengan Variasi Lama Reaksi 2 ; 4 dan 6 Jam
(Universitas Sumatera Utara, 2011)Petroleum fuel is one of especial source energy used a lot of state world in this time. Human need for energy sources in the form of fuel increasing, along with its use in industrial area and transportation, so that ... -
Pemanfaatan Serbuk Batang Kelapa Sawit sebagai Pengisi pada Pembuatan Lembaran Plafon Gipsum dengan Bahan Pengikat Poliuretan
(Universitas Sumatera Utara, 2011)In this thesis has been discussed about the effect of oil palm stem powder as a filler in the manufacture on making the gypsum ceiling sheets of physical and mechanical properties and the DTA. This type of adhesive ... -
Analisis Intrusi Air Laut pada Sumur Gali dan Sumur Bor dengan Metode Konduktivitas Listrik di Kecamatan Hamparan Perak
(Universitas Sumatera Utara, 2011)Has been conducted a research on The Analysis of Sea Water Instrution on Digging Well and Bore Well with Electricial Conductivity Method in Hamparan Perak Sub-district. The sample of wells was collected from 22 points ... -
Pemanfaatan Serbuk Batang Kelapa Sawit sebagai Pengisi pada Pembuatan Papan Gipsum Plafon Menggunakan Perekat Tepung Tapioka
(Universitas Sumatera Utara, 2011)The research about the utilization of palm oil stem powder as a filler in the manufacture of gypsum board ceiling using tapioka flour has been done. Gypsum board ceiling made by mixing palm oil stem powder and gypsum ... -
Penggunaan Arang Cangkang Kelapa Sawit dan MgO untuk Bahan Baku Pembuatan Keramik Berpori yang Digunakan sebagai Filter Gas Buang Kendaraan Berbahan Bakar Bensin
(Universitas Sumatera Utara, 2012)The fabrication of cordierite ceramic has been done by using the basic material of MgO and palm shell ash. The mixture of the raw material of ceramic (MgO, clay) is in mass percentage. The ingredients are arranged in the ... -
Pemanfaatan Serbuk Batang Kelapa Sawit sebagai Pengisi pada Pembuatan Papan Gipsum Plafon Menggunakan Perekat Tepung Tapioka
(Universitas Sumatera Utara, 2011)The research about the utilization of palm oil stem powder as a filler in the manufacture of gypsum board ceiling using tapioka flour has been done. Gypsum board ceiling made by mixing palm oil stem powder and gypsum ... -
Pembuatan Papan Partikel Komposit Polietilena Kerapatan Rendah Daur Ulang dan Serat Tandan Kosong Kelapa Sawit
(Universitas Sumatera Utara, 2011)The research done making the composite particle board using the empty fruit bunches palm oil as filler and recycled low density polyethylene as a binder and use maleic anhibryda as an additive. In this study, used the ... -
Pembuatan dan Karakterisasi Kertas Pembungkus yang dibuat dari Kantong Semen Bekas dengan Pulp Jerami
(Universitas Sumatera Utara, 2008)The Research of forming and characteristic of paper which is made of mixture of straw pulp and cemen`t bag trace pulp has been conducted. Research with caustic process method, aim to obtain; mixture paper raw material ... -
Pemanfaatan Limbah Oil Sludge Pertamina sebagai Bahan Baku dalam Pembuatan Keramik Konstruksi
(Universitas Sumatera Utara, 2009)The making of ceramics for construction material based on sludge powder (from Pertamina’s oil sludge) and kaolin (as a binder) has been done. Composition of sludge powder varies from 50, 55, 60, to 95 % (in percent of mass) ... -
Pembuatan Panel Beton Ringan Berbasis Perlit dan Efek Komposisi terhadap Karakteristiknya
(Universitas Sumatera Utara, 2009)The making of light weight concrete (perlit concrete I and II) have been done by using mixture cement - perlit and cement - aggregate (mixture of perlit and sand). Generally, the quality of light weight concrete was ... -
Pengaruh Penambahan Mullite 3AI2O3 .2sio2 dan Variasi Suhu Sintering terhadap Karakteristik dan Mikrostruktur Keramik AI2O3
(Universitas Sumatera Utara, 2006)ABSTRAK Telah dilakukan pembuatan keramik alumina dengan aditif mullite 3AI2O3 .2SiO2, serta menggunakan bahan baku AI2O3, dan kuarsa SiO2 Aplikasi keramik alumina adalah sebagai bahan rehraktori yang tahan suhu tingi ... -
Penentuan Persentase Pembentukan Fasa Austenit pada Transformasi Bainit Baja Mangan (FeMn) dengan Validasi Microhardness dan Macrohardness pada Temperatur 500ºC
(Universitas Sumatera Utara, 2008)An investigation was done to a Hadfield 3401 steel used for railroad which formed in heat treatment at 1200 oC and then done with water quenching. The material was subjected to predict the change of microstructure’s by ... -
Karakterisasi Ijuk pada Papan Komposit Ijuk Serat Pendek sebagai Perisai Radiasi Neutron
(Universitas Sumatera Utara, 2008)Palmyra had been characterized at short palmyra fiber composite board to find out that palmira composite board could be used for neutron radiation shield. The observation got : palmyra’s fiber density was 1,136 gr/cm3, the ... -
Pembuatan Keramik Berpori Cordierite (2MgO. 2AI2O3, 5SiO2) sebagai Bahan Filter Gas
(Universitas Sumatera Utara, 2006)The local raw materials: MgCO3, y-Al203 and SiO2 have been mixed by using ball mill along as 48 hours (ratio of powder with water is 1:1), dried in the oven at 110°C for 24 hours, sieved until through out 200 mesh and then ... -
Karakteristik Termoplastik Polietilena dengan Serat Batang Pisang sebagai Komposit untuk Bahan Palet Kayu
(Universitas Sumatera Utara, 2008)The research intends to use Serat Batang Pisang (SBP) as to strengthened of Polietilena (PE) composit Mixturing of PE is made by 10 %, 20%, 30%, and 40%. Pieces 0f PE mixed with SBP using hot press machine by having variation ...