Undergraduate Theses

Studi Ketahanan Oksidasi Pada Fe-Ni-Cr-Al-Ti dengan Metode Flame Spray Coating

Simamora, Hetty Ita Sari (Universitas Sumatera Utara, 2022)

The walter walll tube component found in the circulalting fluidized bed (CFB) boiler operaltes alt very high temperaltures (800–900 °C) alnd operaltes in aln albralsive environment. These working conditions often result ...

Sintesis dan Karakteristik Fasa Cu-Cr-O Menggunakan Pelarut H2so4 dan HNO3 dengan Metode SOL-GEL

Rangkuti, Yusridah (Universitas Sumatera Utara, 2022)

Cu-Cr-O material was a material that hat a delafossite structure and potentially hat good thermoelectric properties. In this study, the Cu-Cr-O material has been synthesized using the sol-gel method using H₂SO4 and HNO3 ...

Pembuatan dan Karakterisasi Beton dengan Campuran Abu Sekam Padi dan Serat Daun Nanas terhadap Sifat Fisis dan Mekanik Pada Beton

Atikah, Nisrina (Universitas Sumatera Utara, 2022)

Research on the manufacture of construction concrete based on rice husk ash and pineapple leaf fiber by the method of cast in situ. The concrete made in this study had several variations, namely 0%, 2,5%, 5%, and 7,5% with ...

Pengontrolan Temperature Konstan Hotplate Pemanas Kopi dengan Sensor Lm35 Memanfaatkan Library Pid Arduino

Ndraha, Noverdendri (Universitas Sumatera Utara, 2022)

Automatic coffee heating hotplates used a PID control system were used so that the desired temperature can be maintained and remains stable and the output error was small. By adding a PID controller to the device, it was ...

Rancang Bangun Pendeteksi Asap Rokok Berbasis Arduino Uno dengan Output Suara dan Lampu Otomatis

Siregar, Nurul Fatimah (Universitas Sumatera Utara, 2021)

With the increasing number of indoor users who are dominated by smokers in closed users, it greatly affects the health of both smokers and non-smokers. Until now, the problem of cigarette smoke in public places is still ...

Peningkatan Akurasi Pembacaan ADC 10BIT ATMEGA328 terhadap Sensor Arus ACS712 dari 27mA/BIT menjadi 5mA/BIT Menggunakan Differential Amplifier AD620 dan Kalman Filter

Pardede, Josefan Osbert (Universitas Sumatera Utara, 2022)

Research has been carried out on the design of a current measuring device using the ACS712 current sensor which has increased the reading sensitivity using an AD620 differential amplifier and a Kalman filter. This study ...

Rancang Bangun Alat Pemilah dan Penghitung Buah dengan Menggunakan Laser Berbasis Mikrokontroller Atmega328

Hasibuan, Rinaldi H (Universitas Sumatera Utara, 2021)

Companies always try to replace work that has been done by humans to be replaced with machines in order to improve efficiency and improve the quality of their production.Along with the development and advancement of science ...

Karakteristik Beton Polimer Berbasis Pasir, Serbuk Cangkang Kerang, dan Serat Kulit Durian dengan Pengikat Resin Epoksi

Harahap, Dian Nurhayati (Universitas Sumatera Utara, 2022)

Research had been carried out on polymer concrete from a mixture of sand, shell powder, durian skin fiber, and epoxy resin. This study aimed to determine the effect of the addition of epoxy resin on the physical properties ...

Pengaruh Variasi Reduced Grafena Oxida (rGO) terhadap Sifat Listrik Membran Polimer Elektrolit Berbasis Kitosan/Zeolit Alam Pahae/Reduced Grafena Oxida (rGO)

Situmeang, Masnita Desy (Universitas Sumatera Utara, 2022)

Chitosan/zeolite/rGO (Cs/Z/rGO) membranes have been prepared with five variations of membrane samples, namely Cs/z, Cs/z/rGO (0.5% w/w), Cs/z/rGO (1.0 % w/w), Cs/z/rGO (1.5% w/w), and Cs/z/rGO (2.0% w/w) using the solution ...

Rancang Bangun Alat Ukur Pergeseran Tanah (Extensometer) Berbasis Sensor Ultrasonik Menggunakan Media Transmisi Serat Optik

Hidayat, Arief (Universitas Sumatera Utara, 2022)

One of the serious disasters that often occurs in Indonesia is landslides. Currently the occurrence of landslides can be predicted by looking at the displacement of the soil from several measuring instruments that can ...

Rancang Bangun Sistem Pengatur Suhuadan tingkatakekeruhan Airapada Budidaya Ikan Hias Menggunakanamikrokontroler ATMEGA 8535

Simanjuntak, Anjelina (Universitas Sumatera Utara, 2022)

Freshwater ornamental fish farming provides many opportunities for the community because there are many enthusiasts and was one of the interesting hobbies. Butifor the success of such cultivation requires special attention ...

Studi Penempatan Transformator Distribusi Berdasarkan Jatuh Tegangan Pada PT. PLN (Persero) Rayon Medan Kota

Sianipar, Elfrida (Universitas Sumatera Utara, 2011)

Distribution system is a system that transmits electricity from generating electrical energy to consumers in mid-scale voltage to low voltage. Where in the distribution of electrical energy required a considerable distance ...

Studi Statistik Kuantum dalam Fungsi Partisi

Sembiring, Heber N (Universitas Sumatera Utara, 2010)

Partition function used for the N of harmonis oscillator or N of particle of boson and also fermion to free particle identic system do not interact by comparing result of calculation between Einstein model with method ...

Rancangan Alat Pengontrol Kecepatan Putar Motor Listrik Berbasis Mikrokontroler AT89S52

Rizki, Gilang Perkasa (Universitas Sumatera Utara, 2010)

Had design a instrument who can measure and controlled of electric motor who active otomaticly. The Instrument controlled electric motor before with control voltage gived at motor. This instrument design for defend stability ...

Prototype Kontrol Temperatur Pada Sebuah Inkubator Penetas Telur Berbasis Mikrokontroller AT89S52

Kurniawan, Deri (Universitas Sumatera Utara, 2011)

With developments in technology, requires innovation to create the tool as a substitute for egg incubator hatching eggs manually, by way of using light as a conduit of an unbiased temperature changed. AT89S52 one IC is ...

Pembuatan dan Karakterisasi Keramik Berpori dari Campuran Zeolit dan Bahan Aditif Arang Sekam Padi dengan Perekat Polivinylalcohol (PVA)

S, Agustiani Isabella (Universitas Sumatera Utara, 2010)

The phorous ceramics based on zeolite and ash of hush of paddies had been fabricated and characterized. Both substances were pulverized and sieved with a 100 mesh. The variations of composition were 100:0, 90:10, 80:20, ...