Department of Physics: Recent submissions
Now showing items 81-100 of 2671
-
Sistem Kontrol Generator Termoelektrik dalam Konversi Energi Panas dari Kondensor Pirolisis Menjadi Energi Listrik dengan Metode Proportional Integral Derivative
(Universitas Sumatera Utara, 2024)This study utilizes waste heat from the pyrolysis condenser to convert it into electrical energy using the Peltier TEC1-1706 module. The generated heat energy is transformed into electricity, which is then measured using ... -
Pemanfaatan Cesium-137 pada Uji Homogenitas Dosis dan sebagai Sumber Standar Kalibrasi Alat Ukur Radiasi Dosimetri Radiation Detector Bosean Fs-600
(Universitas Sumatera Utara, 2024)A study on the utilization of Cesium-137 as a standard calibration source for the BOSEAN FS-600 Radiation Detector has been conducted. The research aimed to evaluate the stability of the dosimeter system, determine the ... -
Pembuatan dan Karakterisasi Bioplastik Pati Biji Durian dengan Penambahan Filler Serat Kulit Jagung Menggunakan Plasticizer Gliserol
(Universitas Sumatera Utara, 2024)Research has been conducted on bioplastics using durian seed starch, chitosan, corn Research has been conducted on bioplastics using durian seed starch, chitosan, corn husk fiber, glycerol plasticizer, and 2% acetic ... -
Sistem Monitoring Pembangkit Listrik Alternatif Bertenaga Baterai dan Belt Motor DC Berbasis Internet of Things (Iot)
(Universitas Sumatera Utara, 2024)Battery-powered alternative power plant and DC motor and alternator as a source of electrical voltage used as charging 12 Volt Battery. This research aims to utilize technological advances and produce an Internet of ... -
Pembuatan Plastik Biodegradable Menggunakan Nanoserat Selulosa Tongkol Jagung dengan Plasticizer Gliserol
(Universitas Sumatera Utara, 2024)Research has been conducted on the manufacture of biodegradable plastics using corn cob cellulose nanofibers with glycerol plasticizers. This study aims to determine the effect of the comparison of the composition of ... -
Pemanfaatan Powder Porang dan Serat Kulit Jagung dengan Penambahan Magnesium Stearat dan Polivinil Alkohol pada Pembuatan Biofoam
(Universitas Sumatera Utara, 2024)This research has been conducted to make biofoam with porang flour, corn fiber and magnesium stearate with the addition of polyvinyl alcohol variations of 40%, 50%, and 60%. The stages in this research start from making ... -
Pembuatan Bahan Biomaterial Berbasis Hidroksiapatit Limbah Cangkang Kerang Kepah (Polymesoda Erosa) dengan Metode Presipitasi Double Stirring dan Karakterisasinya
(Universitas Sumatera Utara, 2024)Research has been carried out on the synthesis of hydroxyapatite-based biomaterials from the shell waste of crab shells (Polymesoda Erosa) in the Belawan Mangrove Forest area which aims to synthesize hydroxyapatite (HAp) ... -
Pembuatan Hidrogel Komposit Alginat- Nanokristal Selulosa yang Diisolasi dari Kulit Durian (durio zibethinus) dan Diperkuat oleh Mangan Dioksida untuk Adsorpsi Metilen Biru
(Universitas Sumatera Utara, 2022)Research on cellulose nanocrystal-based composite hydrogel isolated from durian peel has been successfully carried out. The cellulose nanocrystals were further modified into composite hydrogels. Where the composite hydrogel ... -
Fabrikasi Kawat Superkonduktor MgB2 melalui Proses Pengerolan Panas dengan Selubung Baja Tahan Karat dan Variasi Filling Density Serbuk dalam Tabung
(Universitas Sumatera Utara, 2022)Variations in filling density of powder in the tube were carried out to study its on phase, microstructure and superconductivity of MgB2. Raw materials in the form of Mg powder (98.5 % purity, Merck) and amorphous B (95 ... -
Karakterisasi Barium Heksaferite dan Pasir Besi sebagai Material Penyerap Gelombang Mikro
(Universitas Sumatera Utara, 2024)This study aims to analyze the characteristics of Barium Hexaferrite and iron sand as microwave absorbing materials, their effects on microwave absorption properties, and the frequency range of waves produced by the material. ... -
Monitoring dan Analisis Kualitas Udara di Beberapa Wilayah Kota Medan yang Terintegrasi Berbasis IoT
(Universitas Sumatera Utara, 2024)The background of this research is the importance of monitoring air quality in the industrial and non-industrial areas, especially in Medan, Indonesia. The growth of the industrial sector and the increased use of ... -
Karakterisasi Pasir Besi dan Nikel Oksida sebagai Material Penyerap Gelombang Mikro
(Universitas Sumatera Utara, 2024)Analysis of the Characteristics of Iron Sand and Nickel Oxide as Microwave Absorbing Materials, Their Influence on Microwave Absorption Properties, and the Frequency Range of the Waves Produced by These Materials. The ... -
Identifikasi Angin Kencang Menggunakan Radar Cuaca di Bandar Udara Kualanamu
(Universitas Sumatera Utara, 2024)Strong wind is one of the weather phenomena that could become a danger in the aviation safety. The Kualanamu Meteorological Station recorded 174 strong winds cases between 2020 – 2022, which describe the high risk of strong ... -
Sintesis dan Analisis Karbon Aktif Ampas Tebu dan Kitosan Kulit Udang sebagai Adsorben Logam Fe dan Mn pada Air Sumur
(Universitas Sumatera Utara, 2024)In some areas in Medan Denai district, the availability of pure water sources from water facilities is still unable to meet the needs of the community due to the lack of pure water flowing to residents homes at certain ... -
Pengaruh Variasi Debit Air terhadap Konsentrasi Oksigen Terlarut pada Pemelihara Benih Ikan Nila di Kolam Beton
(Universitas Sumatera Utara, 2024)This study aims to analyze the effect of water flow rate variations on dissolved oxygen (DO) concentration and survival rate of Nile tilapia (Oreochromis niloticus) in concrete ponds. Three treatments were employed: no ... -
Pemodelan Kecepatan Seismik 1-Dimensi dan Relokasi Hiposenter Gempa Pasaman 2022 Mw 6.2
(Universitas Sumatera Utara, 2024)The island of Sumatera has a complex tectonic system with the Sumatera fault and subduction zone due to the convergence of the Indo-Australian and Eurasian plates. The Sumatera fault, along ±1,650 km, and the active ... -
Rancangan Sistem Monitoring Suhu untuk Perhitungan Inhomogenitas Media Kalibrasi Menggunakan Modul ESP Berbasis Internet of Things
(Universitas Sumatera Utara, 2024)BMKG has established a Calibration Laboratory that is certified by ISO/IEC 17025:2017. Compliance with this standard certification necessitates frequent calibration to uphold the accuracy of data and measurements. An ... -
Sintesis Karbon Aktif Biji Bidara dengan Aktivator KOH sebagai Elektroda Superkapasitor
(Universitas Sumatera Utara, 2024)This research uses activated carbon of bidara seeds synthesized as a material to make supercapacitor electrodes using physical and chemical activation methods, that have temperature variations of 400oC, 500oC, and 650oC. ... -
Pengembangan Spot Welder Berbasis Timer Microcontroller Atmega 328
(Universitas Sumatera Utara, 2024)In this study, experiments were conducted varying welding times from 500 to 3000 milliseconds at a constant voltage of 7.5 V. Measurement data revealed a proportional increase in power output from 89.4 to 237.15 Watts with ... -
Sistem Deteksi Kualitas Air Minum Menggunakan Sensor PH, Dissolved Oxygen, Konduktivitas dan Suhu Berbasis Mikrokontroler ESP32
(Universitas Sumatera Utara, 2024)Water is a natural resource that is important for human life. The availability of clean water for consumption is generally a very primary issue because various diseases that arise due to poor water quality are unknown to ...