Master Theses
Master Theses
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Variabilitas Lapisan Termoklin dan Suhu Permukaan Laut saat Fenomena Indian Ocean Dipole di Perairan Barat Sumatera
(Universitas Sumatera Utara, 2021)In sea-atmosphere interactions, the Indian Ocean Dipole phenomenon originating from the Indian Ocean is known to have an important influence on weather factors in the Western Waters of Sumatra. This study aims to identify ... -
Pemanfaatan Abu Sekam Padi ( Rice Husk Ash ) pada Pembuatan Batako dengan Tambahan Perekat Limbah Padat Abu Terbang Batubara ( Fly Ash )
(Universitas Sumatera Utara, 2010)Many kinds of analysis about the utilizing of fly ash and Rice Husk Ash (RHA) for the making of concrete have been conducted. The analysis done here uses the two of wastes they are; fly ash and RHA mixed with cement, ... -
Pembuatan dan Karakterisasi Papan Partikel Dari Serbuk Kalsium Karbonat (Caco3) dan Serat Kulit Waru (Hibiscus Tiliaceus) Dengan Resin Polyester
(Universitas Sumatera Utara, 2013)Have done the research, entitled "Preparation and Characterization of Powder Particle Board Calcium carbonate (CaCO3) and Fiber Leather Waru (Hibiscus tiliaceus) with Polyester Resin". The purpose of this study is: 1. ... -
Penggunaan Serat Alami Limbah Ampas Tebu PTPN II Sei Semayang dan Perekat Abu Terbang Batu Bara PLTU Sibolga (Fyl Ash) Substitusi Semen pada Pembuatan Genteng
(Universitas Sumatera Utara, 2010)Incerasing tensile strengthof concrete can be obtained by adding fiber to the fresh concrete mix.In limited applications of non structural element.The natural fiber (mineral or organic)can be used. This research is conducted ... -
Pengaruh Keasaman, Waktu terhadap Tebal Lapisan dan Kecerahan Permukaan pada Pelapisan Emas terhadap Tembaga
(Universitas Sumatera Utara, 2010)Electroplating is a metal coat electrodeposition on electrode which aim to form a new surface with a new characteristics that totally different to its original metal. The metal at this experiment was copper because this ... -
Pemanfaatan Limbah Abu Terbang Batubara (Fly Ash) PLTU Sibolga dengan Serat Sintetis Ban Bekas (Scrab Tire Rubber) CV. Persahabatan Tj. Morawa pada Pembuatan Batako
(Universitas Sumatera Utara, 2010)Technological development of building materials continue to run fast along with the existing needs in the field, as well as the material for the batako walls of buildings continue to be developed in order to have properties ... -
Pemanfaatan Limbah Debu Batubara, Batu Apung dan Abu Sekam Padi sebagai Bahan Substitusi Semen dan Pasir dalam Pembuatan Batako
(Universitas Sumatera Utara, 2010)Concrete bricks in this study is made of a mixture of cement, sand, fly ash, pumice and ash from rice husk. Variables on this brick is the composition of fly ash substituted for cement ranging from 0 – 30 % of the volume ... -
Pengaruh Orientasi Serat Sabut Kelapa dengan Resin Polyester terhadap Karakteristik Papan Lembaran
(Universitas Sumatera Utara, 2010)A research to produce resin polyester composite board and fiber of coconut coir as wall panel has been carried out. The coconut coir’s fiber strukture and percentage have an effect on the making of board sheet characteristic ... -
Pengaruh Lama Reaksi terhadap Perubahan Karakteristik Biodiesel Turunan Minyak Kemiri dengan Menggunakan Katalis CaO dan Kosolvent Eter
(Universitas Sumatera Utara, 2010)It has been done the manufacturing of biodiesel candlenut oil through transesterification process. This process was conducted in the autoclave with candlenut oil mixture : methanol 1:12 mol. CaO catalyst was 8% of oil ... -
Pemanfaatan Limbah Debu Terbang Batubara (Fly Ash), Kulit Kerang, dan Batu Apung (Pumice) sebagai Bahan Substitusi Semen dan Pasir dalam Pembuatan Batako
(Universitas Sumatera Utara, 2010)The concrete bricks in this research are produced from the mixture of cement, fly ash, clamshell, sand, pumice, and water with the water – cement ratio 0,57. The purpose of this research is to determine the wastage of fly ... -
Pemanfaatan Limbah Abu Terbang (Fly Ash) Batubara dan Kulit Kerang sebagai Bahan Substitusi Semen dan Limbah Beton sebagai Pengganti Pasir
(Universitas Sumatera Utara, 2010)A research has been conducted on the utilization of fly ash and clam shells waste as cement substitute materials and concrete waste as a substitute for sand in the manufacture of concrete bricks. The purpose of the ... -
Pemanfaatan Limbah Abu Batubara, Kulit Kerang dan Abu Sekam Padi sebagai Bahan Substitusi Semen dan Pasir dalam Pembuatan Batako
(Universitas Sumatera Utara, 2010)The concrete briks in this research are produced from mixture of cement, fly ash, shells, sand and rice husk ash with water 0.6 FAS. The composition of the cement samples substituted with fly ash and shells ranging from ... -
Karakteristik Material Komposit Keratin Hasil Ekstraksi Limbah Bulu Ayam dan Matriks Polietilena Kerapatan Rendah
(Universitas Sumatera Utara, 2013)Low density polyethylene-based composites were made using keratin extracted from chicken feathers. The addition of keratin alter the mechanic properties of the polyethylene. The composite that added 20% keratin had tensile ... -
Analisis Sifat Sifat Fisika Kimia dan Emisi Gas Buang dari Biodiesel B10, B20 Turunan Minyak Kacang Tanah Melalui Proses Transesterifikasi dengan Katalis KOH
(Universitas Sumatera Utara, 2010)The research done Peanut oil as raw material for preparation of biodiesel, has-been transesterified process in the under conditions oil and methanol ratio of 1: 6, mass of catalyst 1.5% of the mass of oil, sushu 65°C, the ... -
Analisis Sifat Fisis Biodiesel B10, B20 dan Uji Emisi Gas Buang dari turunan Minyak Kemiri melalui Ransesterifikasi dengan Katalis Basa KOH
(Universitas Sumatera Utara, 2010)Cundel nut oil wash found by several treating stepscore cundel nut was grainded that extracted using solven hexan. Hexan solution wash eva vorated to get oil said hazelnut oil.This oil characteristic using gc to know faty ... -
Pengaruh Tipe Katalis KOH dan CAO pada Pembuatan Biodiesel Turunan Minyak Kacang Tanah Melalui Transesterifikasi dengan Lama Reaksi 3 Jam pada Suhu 65⁰C Menggunakan Eter sebagai Cosolvent
(Universitas Sumatera Utara, 2010)Biodiesel as an alternative energy has been widely reported and less CO2 emissions than diesel. Which is a common catalyst is KOH and NaOH, using peanut oil as fuel and catalyst Cao has not been widely reported. Therefore, ... -
Pembuatan dan Karakterisasi serta Aplikasi Katalik Konverter untuk Filter Gas Buang Kenderaan Bermotor Berbahan Bakar Premium
(Universitas Sumatera Utara, 2012)The fast growing of economic growth has given out the problems of air pollution that is emitted by the exhaust system of vehicle which decrease the quality of environment and in order to seek the alternative noble metal ... -
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 ...
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