Browsing Faculty of Mathematics and Natural Sciences by Type "Tesis Magister"
Now showing items 1-20 of 1322
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2-Eksponen dari Digraph Dwiwarna Asimetrik yang memuat Cycle Primitif
(Universitas Sumatera Utara, 2008)Suatu digraph dwiwarna adalah sebuah digraph dengan setiap arcnya terwarnai,merah atau biru. Sebuah digraph dwiwarna D dikatakan terhubung kuat bila ada bilangan tak negatif h dan k sehingga untuk setiap pasangan verteks ... -
Adisi HCl pada Karotenoid dengan Menggunakan Katalis PdCl2
(Universitas Sumatera Utara, 2010)Catalytic addition of dry HCl to carotenoid using PdCl2 as the catalyst has been carried out. Dry HCl was prepared from HCl ( 36% ) and concentrated H2SO4 ( 98% ). The carotenoids used was previously enriched to 3452 ppm ... -
Adsorben Zeolit Alam Pahae-Kitosan dan Abu Boiler Kelapa Sawit sebagai Pereduksi Logam Berat pada Air Limbah Domestik di Kota Medan
(Universitas Sumatera Utara, 2024)This research examines zeolite-chitosan based adsorbents with the addition of palm oil boiler ash to absorb heavy metals (Cu, Cr, and Cd) in wastewater with the aim of analyzing the effect of palm oil boiler ash on ... -
Adsorpsi dan Desorpsi Karotenoida dari Minyak Sawit Mentah (Crude Palm Oil/CPO) Menggunakan Adsorben Garam M-Amberlit Ir 120 dan Garam M-Polistirena Sulfonat (m= na, mg, ca, sr dan ba)
(Universitas Sumatera Utara, 2014)Have performed the synthesis of 2 (two) types of adsorbents M-Amberlite salt (M-Am) and Mpolistiril sulfonate salt (M-PSS), M = Na, Mg, Ca, Sr, and Ba. M-Am prepared by reacting Na- Am with chloride salts of magnesium, ... -
Aktifitas Ekstrak Bakteri yang Berasosiasi dengan Spons Haliclona SP2. dan Axinellid SP. sebagai Antibakteri
(Universitas Sumatera Utara, 2014)An effort to explore a new antibacterial compounds should be considered since increasing resistance of bacteria due to intensive utilization of antibiotics. Marine sponges are frequently assosiated with bacteria of ... -
Aktivasi Bentonit Alam Sebagai Bahan Pengisi pada Komposit Polietilen/High Density Polyethyline (HDPE) Untuk Bahan Teknik
(Universitas Sumatera Utara, 2013)The research of the utilization of pineapple-leaf fibres in the manufacture of gypsum board profiles with the mixture of PCC (Portlandcomposite cement) has been done. Gypsum profiles are made by mixing pineapple-leaf fibres ... -
Aktivitas Alkaloid dari Buah Terung Belanda (Solanum betaceum) Hasil Sambung Pucuk dengan Lancing (Solanum mauritianum) terhadap Tingkat Kehamilan Mencit (Mus musculus)
(Universitas Sumatera Utara, 2011)An investigation of the activities alcaloide from Tamarillo (Solanum betaceum) grafting with Bugweed (Solanum mauritianum) on pregnancy rate of mice (Mus musculus) was carried out. Solasodine of pea Eggplant was extracted ... -
Aktivitas Anti Bakteri Asap Cair Dari Limbah Kulit Kopi terhadap Bakteri Pembusuk Pada Pisang Sale
(Universitas Sumatera Utara, 2013)This study aims to make liquid smoke from waste coffee peels temperature of 3000C-4000C, 4000C-5000C, and 5000C-6000C, as well as to characterize the liquid smoke leather coffee with GC-MS technique. Then do a test against ... -
Aktivitas Anti Kanker Ekstrak Daun Biwa (Eriobotrya japonica Lindl) pada Jaringan Payudara Tikus Putih yang Diinduksi Benzo(a)Pyrene Secara In Vivo
(Universitas Sumatera Utara, 2020)Loquat (Eriobotrya japonica Lindl) is a plant which have potential to be anticancer. Bioactive compounds such as flavonoids, tannins and steroids/terpenoids have been isolated from loquat leaves which is believed to have ... -
Aktivitas Antibakteri Ekstrak Etanol Kulit Kayu Manis (Cinnamomum burmannii) dan Aplikasi Sebagai Obat Kumur dalam Menghambat Pertumbuhan Bakteri Streptococcus
(Universitas Sumatera Utara, 2017)Cinnamon bark has been commonly used as spicy and traditional medicine. It contains several antibacterial compounds such as flavonoids, saponins, and cinnamaldehide. Several studies have been done to know the antibacterial ... -
Aktivitas Antimikroba Herba Meniran (Phyllanthus niruri L.) terhadap Bakteri dan Khamir Patogen
(Universitas Sumatera Utara, 2011)The aim of this study was to investigate the antimicrobial activity of meniran (Phyllanthus niruri L.) on pathogenic bacteria and yeast. The meniran was extracted with several solvent, such as n-hexane, etyl acetate, and ... -
Aktivitas Antioksidan dan Antibakteri dari Ekstrak Daun Eucalyptus (Eucalyptus pellita) serta Isolasi Senyawa Flavonoid
(Universitas Sumatera Utara, 2024)Eucalyptus pellita is one of the species from the Myrtaceae family that is considered a potential allelopath. This study aims to test the bioactivity and isolate flavonoid compound from E. pellita leaf extract. E. pellita ... -
Aktivitas Antioksidan dan Antimikrob dari Estrak Etanol Daun Gagatan Harimau (Paraboea leuserensis B.L.Burtt) terhadap Staphylococcus aureus, Escherichia coli dan Candida albicans
(Universitas Sumatera Utara, 2025)Antioxidant and antimicrobial research of ethanol extract of Gagatan Harimau leaves (Paraboea leuserensis B.L.Burtt) against staphylococcus aureus, Escherichia coli and Candida albicans was conducted in January-April ... -
Aktivitas Biosurfaktan Bakteri Filosfer Tanaman Berlapis Lilin
(Universitas Sumatera Utara, 2022)Using compound hydrocarbon oil earth as the source of energy cause vulnerable contamination compound it in the environment. To remove contamination the required compounds that can lower the voltage surface. Biosurfactant ... -
Aktivitas Enzim Protease Isolat Bakteri Termofilik dari Beberapa Sumber Air Panas di Sumatera Utara
(Universitas Sumatera Utara, 2013)Isolation and partial characterization of crude protease of thermophilic bacteria from several hot springs in Sumatera Utara has been done. Twenty isolates showed proteolitic activity qualitatively in Skim Milk Agar ... -
Aktivitas Senyawa Antibakteri Bintang Laut (Asterias Forbesii) terhadap Beberapa Jenis Bakteri Patogen
(Universitas Sumatera Utara, 2014)One such alternative sources of antibacterial compound is derived from sea star. In this study extraction of sea star (Asterias forbesii) has been caried out to obtain antibacterial compounds. To determine bioactive compounds ... -
Akumulasi Timbal (Pb) dan Keanekaragaman Jenis Lichenes di Taman Kota Medan
(Universitas Sumatera Utara, 2010)Accumulation of lead (Pb) on Lichenes thalus influenced by differences in the count of motor vehicles and physical factors inherent in the garden city of Medan. The aim of the study is to examine factors affecting the ... -
Alat Monitoring Pertumbuhan Plankton pada Kolam dari Proses Fermentasi Kotoran Sapi Berbasis Sensor Warna TCS3200 dengan Mikrokontroller Arduino ATMega 2560
(Universitas Sumatera Utara, 2019)The TCS3200 color sensor based plankton growth monitoring has been successfully designed and tested. This tool uses the principle of changing the intensity of green on the test media which is calibrated with a density ... -
Algoritma Branch and Cut untuk Program Stokastik Biner Campuran
(Universitas Sumatera Utara, 2011)Decomposition has proved to be one of the more effective tools for the solution of large-scale problems, especially those arising in stochastic programming.A decom position method with wide applicability is Benders ... -
Algoritma Eksak untuk Menyelesaikan Persoalan Bin Covering
(Universitas Sumatera Utara, 2012)ABSTRACT This tesis present an exact algorithm for solving the problems of bin covering. Us- ing the branch and bound procedures and the technique of column generation. In the problem of integer programming, column ...