Department of Physics: Recent submissions
Now showing items 161-180 of 2643
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Sintesis dan Karakterisasi Pakan Ternak Ruminansia Berbahan Dasar Tanaman Indigofera Zollingeriana Menggunakan Metode Fermentasi Em 4
(Universitas Sumatera Utara, 2023)This research was conducted to make ruminant feed pellets using Indigofera Zollingeriana as a concentrate and additional ingredients such as coconut pulp, rice bran, molasses, cassava, and EM 4. The purpose is to find ... -
Pembuatan dan Karakterisasi Beton Polimer Menggunakan Zeolit Alam Pahae Dengan Resin Polyester Serta Serat Kulit Jagung Sebagai Filler
(Universitas Sumatera Utara, 2023)Research has been conducted on polymer concrete with sand aggregate and natural zeolite pahae and corn husk fiber as filler using hotpress at 170 oC for 30 minutes. with the aim to determine the effect of reducing zeolite ... -
Sintesis dan Karakterisasi Pakan Ternak Ruminansia Berbahan Dasar Bungkil Inti Sawit (Palm Kernel Cake) Menggunakan Metode Fermentasi Em 4
(Universitas Sumatera Utara, 2023)This study aims to determine the effect of the addition of cassava as an adhesive and the use of palm kernel meal as a concentrate and the addition of other ingredients on the physical properties, mechanical properties, ... -
Efektivitas Karbon Aktif Tempurung Pala dalam Menurunkan Kadar Amonia (Nh3) Pada Air Kolam Ikan
(Universitas Sumatera Utara, 2023)Research on nutmeg shell activated carbon as a water adsorber aims to reduce ammonia levels in fish pond water. The process of making nutmeg shell activated carbon starts with nutmeg shell dried in the sun for 3 hours and ... -
Pengukuran Laju Paparan Radiasi dan Efektivitas Perisai Radiasi Pada Ruang Panoramik di RSUD Dr.Pirngadi Kota Medan”
(Universitas Sumatera Utara, 2023)Research has been carried out on measuring the rate of radiation exposure and the effectiveness of radiation shielding in the panoramic room at RSUD DR. Pirngadi, Medan City. This research aims to determine the amount ... -
Penerapan Mppt P&O Pada Wind Turbine dengan Mosfet Sebagai Switching dan Arduino Sebagai Mikrokontrolernya
(Universitas Sumatera Utara, 2023)The 11eedfor electrical e11ergy for ma11ki11d today has a very important role. Along with that, the need for electrical energy is increasing. With the increasing need for electrical energy, an adequate source of electrical ... -
Rancang Bangun Photodetector Dioda Laser dengan Panjang Gelombang 1,3 μm
(Universitas Sumatera Utara, 2023)Recently, photodetectors are essential for various industrial and scientific applications, including optical communication, environmental monitoring, and Medicine delivery, health monitors, power supplies, optoelectronic ... -
lmplemntasi Current source Pada wind Turbine Unluk menyalakan Beban Tanpa media
(Universitas Sumatera Utara, 2023)To deal the with increasing needs of life and the reduction of fossil fuels and increasing human resource in the future, it is necessary to produce more electrical energy In addition, the burning of fossil fuels causes the ... -
Rancangan Bangun alat ukur daya listrik sistem kontrol dan deteksi on/off berbasis IoT
(Universitas Sumatera Utara, 2023)This study aims to design and implement a circuit that functions to determine the amount of electricity consumption, current, voltage as well as controlling the distance of the remote lamp and detecting the on/off lights. ... -
Pembuatan dan Karakterisasi Bioplastik Pati Porang (Amorhophallus Oncophyllus)/Talas Beneng (Xanthosoma Undipes K. Koch) dengan Plasticizer Sorbitol
(Universitas Sumatera Utara, 2023)Research has been carried out on the manufacture of bioplastics and chitosan with sorbitol plasticizer made using the melt intercalation method on variations of starch (porang/beneng) versus chitosan 30% : 70%, 40% : 60%, ... -
Pembuatan dan Karakterisasi Beton Polimer Berbasis Abu Sekam Padi dan Cangkang Kemiri dengan Menggunkan Resin Epoxy
(Universitas Sumatera Utara, 2023)Research has been carried out for the manufacture of polymer concrete by utilizing sand, rice husk ash, hazelnut shell ash and epoxy resin. The samples were prepared using a 120 mesh sieving stage, mixing the ingredients ... -
Karakterisasi Garam Lokal Aceh sebagai Kandidat Phase Change Materials (PCM) untuk Thermal Energi Storage
(Universitas Sumatera Utara, 2022)Thermal energy storage plays important role in energy system and helps in optimize the overall efficiency. Development of energy storage system for particular purposes requires some information on the raw material which ... -
Anomali Cuaca Ekstrim pada Bulan Februari 2022 terhadap Karakteristik Hujan di Kota Medan
(Universitas Sumatera Utara, 2023)Medan City is an area that experiences flooding almost every year. February is climatologically the first peak of the dry season in the North Sumatra region, but floods can still occur. In this study the authors analyzed ... -
Analisis dan Proyeksi Tingkat Kenyamanan Iklim Wisata di Kawasan Geopark Kaldera Toba
(Universitas Sumatera Utara, 2023)Caldera Toba Geopark is one of the Geoparks in Indonesia as a tourist destination that depends on natural potential to be vulnerable to climate change. Climate comfort aims to provide recommendations for the best time ... -
Pemetaan Zona Banjir ROB di Wilayah Pesisir Belawan Berdasarkan Analisis Interaksi Atmosfer dan Laut Menggunakan Model Hidrodinamika DELFT3D
(Universitas Sumatera Utara, 2023)The Delft3D Hydrodynamic Model is capable of simulating tidal floods. This study aims to map tidal floods in the port and coastal area of Belawan by analyzing the interaction between the atmosphere and significant waves. ... -
Identifikasi Karakteristik Kejadian Curah Hujan Ekstrem di Provinsi Sumatera Utara
(Universitas Sumatera Utara, 2023)This research aims to identify the spatial and temporal characteristics of extreme rainfall events in North Sumatra Province during the period between 1991 and 2020. Following the recommended rainfall parameters by WMO, ... -
Pemanfaatan Bambu dan Pasir Besi Alam (Fe3O4) dalam Pembuatan Material Magnet
(Universitas Sumatera Utara, 2023)This study aims to analyze the use of bamboo and natural iron sand (Fe3O4) as precursors in preparing a type of magnetic materials. Samples were prepared using the co-precipitation method. An amount of bamboo charcoal ... -
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 ...