Master Theses
Master Theses
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Pembuatan Biodiesel dari Minyak Jarak Pagar (Jatropha Curcas) dengan Katalis Asam Polistirena Sulfonat (PSS) 4 % dan 8 % pada Suhu 1200 C Selama 6 Jam
(Universitas Sumatera Utara, 2012)Production of castor oil biodiesel has been done by transesterification process. The castor oil was previously tested for titration and produced 77,78 % free fatty acid. The process was done in a autoclave by mixing the ... -
Sifat Fisika Metil Ester Minyak Jarak Pagar Hasil Transesterifikasi dengan Katalis PSS 8 % dalam Metanol 1 : 12 Mol
(Universitas Sumatera Utara, 2012)Transesterification reaction 50 gr of jatropha curcas in 8 % PSS catalyst to methanol 26 ml in 120 0 C for 6 hours obtained mix massa (is metil ester, monoglyserida, diglyserida and triglyserida) with 48,13 gr. The ... -
Analisis Intrusi Air Laut pada Sumur Gali dan Sumur Bor dengan Metode Konduktivitas Listrik di Kecamatan Medan Belawan
(Universitas Sumatera Utara, 2011)Research has been done about sea water intrusion in drilling and digging wells with electric conductivity method. Well water samples taken as many as points of drilling well and 20 points of digging well, each 600 mL of ... -
Karakterisasi dan Pembuatan Keramik Sio2 Dengan Campuran Caco3 sebagai Filter Gas Buang Kendaraan
(Universitas Sumatera Utara, 2012)This research to find alternatives to help solve global warming and reduce vehicle exhaust emissions with SiO2 ceramic filter with a mixture of CaCO3. Composition of the ceramic material used is Clay much as 50% of each ... -
Analisa Struktur Paduan Akibat Pengaruh Temperatur Pemanasan dan Pendinginan terhadap Sifat Mekanik dan Ekspansi Termal Paduan CuPbSn sebagai Bushing
(Universitas Sumatera Utara, 2010)Bushing or bearing is known as elements or parts of machine tools that are designed to support the weight of the load moving, especially receipt. CuPbSn alloys commonly used as ingredients in the manufacture of parts ... -
Prediksi Cuaca Ekstrim dengan Model Jaringan Syaraf Tiruan Menggunakan Program Matlab
(Universitas Sumatera Utara, 2010)Medan City is a metropolitan city with a total population density is quite high. On entering the transition area of the city of Medan has a weather condition called unstable extreme weather. Extreme weather is very difficult ... -
Analisis Pengelompokan Curah Hujan Berbasis Sistem Informasi Geografis (SIG)
(Universitas Sumatera Utara, 2010)North Sumatra Province are areas that have characteristics that are typical of the region, where North Sumatra region flanked by two (2) waters, among others: the Strait of Malacca in the east and the Indian Ocean to the ... -
Asimilasi Data Radiance Satelit pada Weather Research and Forecasting Model (WRF) untuk Identifikasi Kejadian Hujan Lebat Skala Meso di Wilayah Sumatera Utara
(Universitas Sumatera Utara, 2021)The geographical condition of the North Sumatra region which is located adjacent to the Indian Ocean and the Malacca Strait and is traversed by the Barisan mountains causes high convective activity. The convective system ... -
Sintesis dan Karakterisasi Anorganik Perovskite Halida Berbasis Metylamonium dan Antimony (Iii) Chlorida dengan Metode Invers Temperature Chrytallization
(Universitas Sumatera Utara, 2021)Abstract: Lead-free halide perovskites have pulled in intrigued within the photovoltaic industry out of concern for the poisonous nature of lead. Antimony-based perovskite, methylammonium antimony trichloride (MASbCl3), ... -
Karakterisasi Material Perovskite Berbahan Non Timbal Menggunakan Kation Organik Formamidinium (Fa/Nh2chnh2)
(Universitas Sumatera Utara, 2021)Perovskite based on formamidinium antimony trichloride (FASbCl3), is one of the materials proposed to replace lead-based perovskite, due to its high absorbance, high bandgap value and resistance to degradation. The manufacture ... -
Pengaruh Konsentrasi Mangan (Mn) terhadap Sifat Mekanik Baja Karbon Rendah
(Universitas Sumatera Utara, 2011)Has done research on "Effect of Manganese Concentration Against the Mechanical Properties of Low Carbon Steel". SC 37 on carbon steel has a tensile strength ≥ 37 kgf/mm2, the length of ≥ 26%. To determine the effect ... -
Analisis Pemetaan Validasi Prediksi Curah Hujan dengan Model Jaringan Syaraf Tiruan dan Wavelet menggunakan ARC View 3.3
(Universitas Sumatera Utara, 2010)North Sumatra is one of the provinces in the island of Sumatra that weather conditions and the climate is strongly influenced by topographical conditions of the area. North Sumatra is divided into 6 (six) regions where ... -
Pembuatan dan Karakterisasi Batako Ringan dengan Campuran Ijuk sebagai Bahan Pengisi yang Direncanakan untuk Dinding Peredam Suara
(Universitas Sumatera Utara, 2010)Lightweight concrete brick has been making from a mixture of palm fiber-cement. The ratio of sand palm fiber is 80: 0, 79: 1, 78: 2, 77: 3, 76: 4 and 75: five in the percentage of the mass with curing times for 28 ... -
Pembuatan dan Karakterisasi Batako Ringan dengan Memanfaatkan Batu Apung (Pumice) sebagai Agregat untuk Bahan Kedap Suara
(Universitas Sumatera Utara, 2010)A research on the manufacture of lightweight concrete brick, cement, sand, and pumice-based. The purpose of this research is the utilization of pumice as a lightweight additive-quality brick and more economical. Variation ... -
Pengaruh Katalis Koh dan CaO pada Pembuatan Biodiesel Minyak Kemiri dengan Reaksi Transesterifikasi Menggunakan Eter sebagai Kosolvent
(Universitas Sumatera Utara, 2010)Fuel reserves are limited it is necessary to utilize alternative technologies to exploit the vegetable oil as an energy-friendly alternatives that can be processed with transesterification reaction to obtain an alternative ... -
Pengaruh Lama Reaksi terhadap Perubahan Krakteristik Iodiesel Turunan Minyak Kacang Tanah dengan Menggunakan Katalis CaO dan Cosolvent Eter
(Universitas Sumatera Utara, 2010)A research of effect time of transesterification has been done to yield biodiesel to the influence of reaction time in making peanut oil. Currently, the world has been facing energy crisis primarily from petroleum fuels ... -
Pemanfaatan Ampas Tebu dalam Pembuatan Batako Ringan yang Direncanakan sebagai Konstruksi Dinding Kedap Suara
(Universitas Sumatera Utara, 2010)It has been fabricated lightweight brick made from bagasse ratio variation of sand is 100: 0, 79: 1: 20, 78: 2: 20, 77: 3: 20, 76: 4: 20 and 75: 5: 20 (in % mass), and 28 days drying time. Testing parameters include: ... -
Kajian Teoretik Perilaku Elektron Struktur Quantum Dot dan Quantum Wire dalam Bahan Semikonduktor AlGaAs dan GaAs
(Universitas Sumatera Utara, 2010)Research about studied theoretically to determine the energy spectrum of quantum dot in a harmonic confining potential with no external magnetic field and with external magnetic field was done. The energy spectrum observed ... -
Pembuatan dan Karakterisasi Plafon Gipsum dengan Menggunakan Serat Rami (Boehmeria Nivea (L) Gaud) dan Campuran Semen PPC
(Universitas Sumatera Utara, 2013)The research about the preparation and characterization of gypsum ceiling with using fiber rami (Boehmeria nivea (L) Gaud) and mixed PPC cement has been done. The gypsum ceiling is produced by varying fiber rami and mixed ... -
Pembuatan dan Pengujian Membrane Capacitive Deionization Menggunakan Material Karbon Aktif Tempurung Kelapa sebagai Pemurni Kesadahan
(Universitas Sumatera Utara, 2016)Coconut shell activated carbon can be used as materials for the electrodes to be applied in water treatment especially for the reduction of hardness. One method of water treatment using electrode is Membrane Capacitive ...
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