Department of Physics: Recent submissions
Now showing items 61-80 of 2643
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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 ... -
Pemanfaatan Modul Bluetooth sebagai Pengaman Tambahan Kendaraan Bermotor Berbasis Arduino
(Universitas Sumatera Utara, 2024)The increase in motorcycle ownership has led to an increase in theft cases. Although motorcycles are equipped with security systems, thefts still occur. So a new security system is needed, namely a security device that ... -
Alat Kontrol pH Air Otomatis Pada Budidaya Ikan Air Tawar menggunakan Automatic Sensor Lifter Terintegrasi Internet Of Things (IoT)
(Universitas Sumatera Utara, 2024)The accuracy of water pH measurement results during control and monitoring can determine the optimal water condition of fish ponds for fish growth and health in freshwater fish farming. By automatically controlling the pH ... -
Karakterisasi Termoplastik Low Density Polyethylene (LDPE) dengan Filler Nanosilika Abu Sekam Padi (ASP) yang Disintesis menggunakan Metode Kopresipitasi
(Universitas Sumatera Utara, 2024)LDPE thermoplastics have been made with rice husk ash nanosilica filler which is synthesized using the coprecipitation method. Nanosynthesis of rice husk ash (RHA) silica was carried out with HCl 2M and NaOH 2.5M solvents ... -
Desalinasi Air Payau dengan Adsorben Berbasis Zeolit Alam Pahae Teraktivasi Fisika
(Universitas Sumatera Utara, 2024)Pahae natural zeolite-based adsorbent for brackish water desalination has been made in order to meet the requirements of clean water quality. Pahae natural zeolite was made with a size of 710μm (25 mesh) then washed with ... -
Pembuatan dan Karakterisasi Campuran Fe3O4/SiO2 dengan Metode Kopresipitasi sebagai Adsorben Methylene Blue
(Universitas Sumatera Utara, 2024)Research has been conducted on the manufacture and characterization of Fe3O4/SiO2 mixture using the coprecipitation method. This research is applied as an adsorbent on methylene blue. The mixing process begins with the ... -
Aplikasi Superkapasitor Rangkaian Konversi Tegangan ke Arus pada Pemakaian Energi Matahari tanpa Baterai
(Universitas Sumatera Utara, 2024)Research has been conducted on the conversion of voltage to current in the use of solar energy without batteries using 40WP solar panels. Solar panels have challenges, namely in overcoming fluctuations in the power ... -
Efek Penambahan ZnO pada Komposit Fe3O4 dan SiO2 yang Berasal dari Abu Sekam Padi sebagai Aplikasi Fotokatalis Methylene Blue
(Universitas Sumatera Utara, 2024)Rice is highly sought after in Indonesia and plays an important role in the country's economy. However, increased rice production also generates more waste, including rice husks. Rice husks can be converted into silica ... -
Adsorben Berbasis Zeolit Alam Pahae-Karbon Aktif Kulit Pisang Kepok sebagai Pereduksi Salinitas Air Laut
(Universitas Sumatera Utara, 2024)Research on zeolite-activated charcoal based adsorbent of kepok banana peel as seawater reducer has been conducted. Zeolite as matrix and kepok banana peel activated charcoal as filler with powder size of 149 μm (100 mesh). ...