Faculty of Mathematics and Natural Sciences: Recent submissions
Now showing items 1241-1260 of 11345
-
Sintesis dan Karakterisasi Fe3O4/TEOS terhadap TiO2 Anatase pada Ion Logam Methylene Blue (MB
(Universitas Sumatera Utara, 2023)Synthesis and characterization of Fe3O4/TEOS on TiO2 anatase on methylene blue (MB) metal ions have been carried out. The synthesis process is done using the coprecipitation method. The preparation begins by mixing Fe3O4 ... -
Sintesis Karbon Aktif Magnetik Berbasis CoCl2 dan Limbah Cangkang Kemiri dengan Metode Co-Presipitasi sebagai Elektroda Superkapasitor
(Universitas Sumatera Utara, 2023)Magnetic activated carbon has been carried out using pecan shell waste (Aleurites moluccana) and the addition of CoCl2 with the composition of 20:80, 40:60, 50:50, 60:40, 80:20 use the co-precipitation method. The breakthrough ... -
Sintesis dan Karakterisasi Elektrokimia Hard Carbon Sebagai Anoda Baterai Ion Sodium Berbasis Biomasa dari Kulit Biji Bunga Matahari (Helianthus Annuus)
(Universitas Sumatera Utara, 2023)In this research, materials have been synthesized from the biomass of sunflower (Helianthus annuus) shell biomass for sodium ion battery anodes. A simple carbonization process is carried out by roasting. Chemical activation ... -
Karakterisasi Silicone Rubber, Alginat, dan Serbuk Gergaji Kayu Sebagai Bolus Radioterapi Pada Energi 8 Mev dan 10 Mev
(Universitas Sumatera Utara, 2023)This study aims to characterize silicone rubber, alginate, and wood sawdust as radiotherapy bolus at 8 MeV and 10 MeV energy. Radiotherapy bolus is used in radiation therapy to increase the radiation dose to tumor tissue ... -
Efektivitas Karbon Aktif Tongkol Jagung Ungu dalam Menurunkan Kadar Amonia (NH3) Pada Air Kolam Ikan
(Universitas Sumatera Utara, 2023)Research on purple corn cob activated carbon as a water adsorbent aims to reduce ammonia levels in fish pond water. Purple corn cob activated carbon is used to reduce ammonia (NH3) levels in fish pond water. Carbonation ... -
Deteksi Begomovirus pada Tomat (Solanum lycopersicum L.) di Kabupaten Langkat dengan Teknik PCR (Polymerase Chain Reaction)
(Universitas Sumatera Utara, 2023)Disease in tomato (Solanum lycopersicum L.) caused by Begomovirus and its the morphological symptoms sometimes difficult to distinguish from symptoms caused by other viruses. Therefore PCR method is the more accurate way ... -
Prospek Pemanfaatan Zeolit Alam Sarulla sebagai Adsorben pada Pengolahan Limbah Cair Industri Tekstil di Kawasan Industri Medan Belawan
(Universitas Sumatera Utara, 1995)Prospek Pemanfatan Zeolit Sebagai Adsorben Pada Pengolahan Limbah Alam Sarulla Cair Industri Tekstil di Kawasan Industri Medan Belawan. Dibawah bimbi- ngan DR. Ir. Setiaty Pandia sebagai ketua, Prof. Dr. Ir. F. Gunarwan ... -
Kompatibilitas dan Biodegradasi Poliblen PP dengan Turunan Selulosa
(Universitas Sumatera Utara, 1998) Blending between cellulose derivative fillers (cellulose, cellulose acetate, and cellulose diacetate), requires special processing technique and cannot be carried out conventionally. We have tried a so called Reactive ... -
Kepadatan dan Pola Pertumbuhan Udang Putih (Penaeus merguiensis) di Perairan Estuaria Kampung Nipah Perbaungan Sumatera Utara
(Universitas Sumatera Utara, 2017) The purpose of the study was to determine the density and pattern of growth of white shrimp (Penaeus merguiensis) in estuarine waters around the village Nipah. The data collection was conducted by sampling using nets ... -
Penentuan Bobot Efisien dari Matriks Perbandingan Berpasangan
(Universitas Sumatera Utara, 2016)Several Multi Criteria Decision Making methodologies explains that the value point associated with multiple criteria will indicate their relative importance. One of the most popular ways to recognize the value point is ... -
Teknik Linierisasi untuk Persoalan Program Kuadratik Nol-Satu
(Universitas Sumatera Utara, 2016) Zero-one quadratic programming is a mathematical programming model in which the objective function and constraints has quadratic form, and decision variable are restricted to zero-one value. Zero-one quadratic programming ... -
Studi tentang Pengamatan Fluoresensi Berdasarkan Domain Panjang Gelombang pada Spektroskopi Fluoresensi untuk Identifikasi Bahan
(Universitas Sumatera Utara, 2015)A research on the Study of Observation Fluorescence with Domain Wavelength Based on Spectroscopy Flouresensifor Material Identification. The sample at this object are olive oil, sandalwood oil, and cem-ceman oil, the ... -
Peninjauan Fungsi Utilitas untuk Model Saham Beresiko
(Universitas Sumatera Utara, 2015)Stocks is the basic unit of property inve.,tor8 in a company in the sense as the owner of the company. In investing in stock, contained an element of risk that can cause great harm. For that, we need a realistic approach ... -
Pengaruh Ekstrak Metanol Biji Pare (Momordica charantia L.) dan Depo Medroksiprogesteron Asetat (DMPA) terhadap Profil Lipid dan Histologi Arteri Koronaria Tikus Putih Jantan
(Universitas Sumatera Utara, 2015) The combination of the seed extract of bitter melon (Momordica charantia L.) and DMPA is one alternative to the expected safe and reversible male contraceptive agent. This study aims to determine the phytochemical content ... -
Reduksi dan Bentuk Normal Matriks Pensil
(Universitas Sumatera Utara, 2014)Matrix Pencils A - ),J3 is a generalized eigenvalue,· where ,,\ is a eigenvafoe that corresponding with det (A - >.B) = 0, A and B is a. matrix square non singular, such that matrix pencils divide into two type, regular ... -
Metode Himpunan Aktif untuk Pemrograman Kuadratik
(Universitas Sumatera Utara, 2014)Quadratic programming problem is one of nonlinear optimization problem which is very important, because appears in some aspects including economics, applied science, and technique. One of method that can be used to solve ... -
Preparasi dan Karakterisasi Busa Poliuretan Terbiodegradasikan dengan Pengisi Serbuk Tandan Kosong Kelapa Sawit
(Universitas Sumatera Utara, 2014) Research on the manufacture of biodegradable polyurethane foam with a powder filler of empty fruit bunches of oil palm processing results PTPN IV Adolina in shavings have done. Polyurethane foam has been successfully ... -
Simulasi Prediksi Curah Hujan Bulanan di Kota Medan Menggunakan Metode regresi Linier Berganda
(Universitas Sumatera Utara, 2016)The research of predictive simulation of monthly rainfall in the city of Medan using multiple linear regression method . This study aims to predict the monthly rainfall in Medan using predictor variables of air temperature ... -
Linierisasi Persoalan Kuadratik Biner
(Universitas Sumatera Utara, 2012) Optimization problem is a part of everyday life problems. Most of them are things related to integer programming, particularly in Binary Quadratic Problem (BQP), where the formula is not linear either in the target ... -
Biodiversitas Tumbuhan Epifit (Orchidaceace dan Pteridophyta) di Kawasan Hutan Ekowisata Bukit Lawang Kabupaten Langkat
(Universitas Sumatera Utara, 2010) The research about Biodiversity of ephyfit plant (Orchidaceae and Pterydophyta) was conducted in Bukit Lawang forest, Langkat Regency from Februari to April 2010. Research area was determined by using Purposive Sampling ...