Master Theses
Master Theses
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Now showing items 21-40 of 307
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Sintesis dan Karakterisasi Bioplastik Polyvinyl Alcohol (PVA)/Selulosa Nanokristalin dari Serat Ijuk (Arenga Pinnata)
(Universitas Sumatera Utara, 2023)The purpose of this study is to utilize cellulose isolated from ijuk fibers as the source of nanocellulose crystalline (NCC), which would be used as filler on bioplastic polyvinvyl alcohol (PVA). To achieve NCC, ... -
Rancang Bangun Neraca Analitik untuk Kalibrasi Gelas Ukur Penakar Hujan Tipe Observatorium dengan Kontrol Massa
(Universitas Sumatera Utara, 2023)The observatory type rain gauge is a manual type rain gauge that requires a measuring cup to measure rainfall in millimeters (mm) of rain. Precise measurement requires calibration of the measuring cup so that the scale ... -
Penentuan dan Analisis Ketidakpastian Pengukuran Penakar Hujan Menggunakan Metode Monte Carlo
(Universitas Sumatera Utara, 2023)Rainfall measurements are susceptible to various sources of uncertainty that can affect measurement accuracy. Factors such as instrument calibration, weather conditions, and measurement methods contribute to measurement ... -
Pengembangan Sistem Monitoring Suhu pada Chamber Kambic dalam Proses Kalibrasi Berbasis Internet of Things
(Universitas Sumatera Utara, 2023)This research is motivated by the lack of efficiency and effectiveness of the Calibration Laboratory officers at the Regional Meteorology, Climatology, and Geophysics Center I in Medan in carrying out temperature calibration. ... -
Pengaruh Perbedaan Jenis Liquid terhadap Keseragaman dan Kestabilan Suhu pada Microbath 7102
(Universitas Sumatera Utara, 2023)Microbath Fluke Type 7102 functions in the process of calibrating thermometers that use liquid media. Liquid media in Microbath during the calibration process there is a value of temperature uniformity and stability. The ... -
Model Kecepatan Seismik 1-Dimensi dan Ground Motion Gempa Bumi Tarutung 2022 M5,8
(Universitas Sumatera Utara, 2023)On 01st October 2022, a strong earthquake with a magnitude of Mw5.8 occurred in the northern region of Tarutung, causing significant damages and strongly felt by the local community. Initially, the Tarutung earthquake was ... -
Investigasi Tektonik Tarutung Berdasarkan Mekanisme Fokal dan Kelurusan Distribusi Gempa yang Akurat
(Universitas Sumatera Utara, 2023)On October 1st, 2022, the Mw 5.8 shallow earthquake occurred in the Tarutung region, North Sumatra, Indonesia, resulting in V – VI Modified Mercalli Intensity (MMI) scale, followed by 170 aftershocks and extensive damages. ... -
Analisis Plastik Biodegradable Berbahan Pati Temu Hitam-Kitosan dengan Penambahan Plasticizer Sorbitol
(Universitas Sumatera Utara, 2023)Biodegradable plastic made from curcuma aeruginosa roxb. rhizome starch-chitosan with the addition of sorbitol plasticizer is made by mixing curcuma aeruginosa roxb starch matrix, sorbitol as a plasticizer, and chitosan ... -
Estimasi Curah Hujan Bulanan Berbasis Machine Learning dalam Mendukung Ketahanan Pangan di Sumatera Utara
(Universitas Sumatera Utara, 2023)The monthly pattern of rainfalls in North Sumatra region is affected by various factors of global climate events, including El-Nino Southern Oscillation (ENSO), Indian Ocean Dipole (IOD) dan Madden Julian Oscillation (MJO). ... -
Uji Akurasi Produk dan Relasi Z-R Radar Cuaca dalam Estimasi Curah Hujan di Sumatera Utara untuk Masing-Masing Jenis Hujan
(Universitas Sumatera Utara, 2023)To reduce the impact of hydrometerological disasters, a research is needed in estimating rainfall. Weather radar is a type of remote sensing used in the field of meteorology to determine atmospheric conditions, measure ... -
Pengembangan dan Karakterisasi Alat Ukur Konduktivitas dan Aplikasinya pada Limbah Minyak Nabati Menggunakan Metode Wenner
(Universitas Sumatera Utara, 2023)The purpose of this study is the development of conductometer and its application in plant-based oil via Wenner method as an early preventive step in reducing environmental damage due to plant-based oil byproduct, such as ... -
Analisis Dinamika Atmosfer Saat Fenomena Tailwind dan Crosswind di Landas Pacu Bandar Udara Kualanamu
(Universitas Sumatera Utara, 2023)There are three wind components in aviation, i.e., headwind, tailwind and crosswind. The tailwind and crosswind can negatively impact the aircraft. Based on the Indonesia Air Navigation report, several events of tailwind ... -
Pengaruh Konsentrasi Naoh terhadap Kapasitas Adsorbsi Ion Logam Berat pada Sintesis Magnesium Ferrite sebagai Adsorben
(Universitas Sumatera Utara, 2023)MgFe2O4 has been successfully synthesized using the co-precipitation method. The synthesis of this material was prepared by mixing MgCl2.6H2O, iron sand, HCl, and varying concentrations of NaOH, namely 5M (K1), 10M (K2), ... -
Karakterisasi Komposit Polimer Konduktif Berbasis Pati Jagung dan Karet Alam dengan Variasi Karbon Konduktif
(Universitas Sumatera Utara, 2023)Conductive polymer composites have been successfully synthesized through the crosslinking method and their conductivity properties have been analyzed. Corn starch and natural rubber which are non-conductive natural polymers ... -
Sintesis Hidrogel Komposit Menggunakan Lignin H2SO4 Di-Isolasi dari Kulit Ari Kopi sebagai Adsorben Methylene Blue
(Universitas Sumatera Utara, 2023)The synthesis of hydrogel composite based on kulit ari kopi has been carried out by crosslinking method. The method applied by the addition of lignin H2SO4 isolated from kulit ari kopi was 0.05%, 0.1%, 0.2%, 0.3%, the ... -
Studi Karakterisasi Variasi Fraksi Volume Serat Kelapa Sawit sebagai Material Komposit
(Universitas Sumatera Utara, 2023)Composites based on polyester matrix and palm oil fly ash fillers have been successfully prepared using simple techniques. Palm fiber reinforcement is used to determine the level of its influence on physical properties ... -
Pembuatan dan Karakterisasi Aerogel Nanoserat Selulosa yang Diisolasi dari Pelepah Aren sebagai Adsorben Minyak
(Universitas Sumatera Utara, 2023)This study aims to produce cellulose nanofibers with appropriate size for material technology applications synthesized from sugar palm fibers. Ultrasonication using an ultrasonic homogenizer is used to produce cellulose ... -
Identifikasi Proyeksi Perubahan Iklim terhadap Probabilitas Penyakit Demam Berdarah Dengue di Provinsi Sumatera Utara
(Universitas Sumatera Utara, 2023)Indonesia has a tropical climate with warm temperatures and high rainfall variability, which is a comfortable place for the Aedes Aegypti mosquito. Clear evidence of climate change is the increase in global air temperature ... -
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 ... -
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 ...
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