Faculty of Mathematics and Natural Sciences: Recent submissions
Now showing items 1681-1700 of 11354
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Pengaruh Grid(Kisi) Linier terhdap Ketajaman dan Densitas Gambar Film Rontgen pada Pemotoan Schedel
(Universitas Sumatera Utara, 2011)Well done research on the effect of grid Linear on sharpness and density of x-ray film images on schedell lateral to get a quality radiographic results with respect to sharpness and density schedel radiography. Density ... -
2 Eksponen dari 2-Digraph dengan Loop
(Universitas Sumatera Utara, 2007)On 2-digraph D, 2-exponent being defined as smallest integer h+k therefore for every pairs of vertex u and v in D there is walk from u to v with legth h + k consist of h red arc and b blue arc. 2-exponent from 2-digraph ... -
Pengukuran Kecepatan Kendaraan Bermotor Berbasis Mikrokontroler Atmega8535 Melalui Komunikasi GSM
(Universitas Sumatera Utara, 2012)Have been designed a measurement speed of vehicle device by using microcontroller ATMega8535, wich is equipped with two infrared sensors as a means of detecting vehicle speed, the distance between sensor 1 and 2 is 50 ... -
“Pengaruh Pemberian Ekstrak Buah Lada Hitam (Piper nigrum L.) terhadap Pigmen Melanin Kulit Mencit (Mus Musculus L.) Hitam Model Vitiligo
(Universitas Sumatera Utara, 2022)Black pepper fruit contains piperine compounds which may be responsible for producing skin pigmentation. This study aims to determine the effect of using blackpepper fruit extract on the extent of vitiligo, percent ... -
Pengaruh Parameter Fisika terhadap Jumlah Koloni Bakteri E.Coli pada Air di Sekitar TPAL Domestik Kab. Aceh Tamiang
(Universitas Sumatera Utara, 2011)Studies have been conducted to determine the parameters of physics to the number of colonies of E. Coli bacteria found around the domestic TPAL Kab.Aceh Tamiang using the software SPSS version 13.0 with the correlation ... -
Pengaruh Konsentrasi Naoh sebagai Media Pendingin terhadap Sifat Mekanik Baja Karbon Menengah dengan Adanya Perlakuan Panas
(Universitas Sumatera Utara, 2012)Have done a study on the influence of the concentration of NaOH as a cooling medium on the mechanical properties of medium carbon steel with a heat treatment. Heating medium carbon steel in the furnace heated up to 850 ... -
Penurunan Persamaan Navier Stokes dalam Bentuk Persamaan Diferensial untuk Gerak Fluida Laminer
(Universitas Sumatera Utara, 2011)Generally set of Navier-Stokes equations describing the motion of a fluid such as liquids and gases. This equation states that the change in momentum of fluid particles depends on the strength of internal and external ... -
Studi Karakteristik Erosi Permukaan Oksida Untuk Aplikasi Boiler PLTU Dengan Menggunakan Material SS310
(Universitas Sumatera Utara, 2022)One of the important components in a steam power plant is a boiler, but there are often leaks in the boiler walls due to erosion caused by fly ash. This study aims to determine how the phenomenon of erosion in the boiler, ... -
Pengujian Tegangan Dadal untuk Media Dieleketrikum Minyak Pelumas
(Universitas Sumatera Utara, 2011)Breakdown voltage is apliance for the voltage and also technique data ralate to strength dielectric. In this research it is displayed strength dielectric of TOP 1 SAE 10W-40, MESRAN SAE 10W-40, ENDURO 4T SAE 10W-40 ... -
Pembuatan Data Logger Extensometer Berbasis AVR Atmega 8535 untuk Memonitoring Pergeseran Tanah
(Universitas Sumatera Utara, 2011)Extensometer is a tool that serves as the detection of a shift in the soil surface, either a shift in the form of land or land falls flowing down in the form of large blocks. This shift sensor utilizing sliding ... -
Studi Karakteristik Erosi Pada Pelat Baja ASTM516 Untuk Aplikasi Boiler PLTU
(Universitas Sumatera Utara, 2022)PLTU is a generator that relies on the kinetic energy of steam to produce electrical energy. One component of PLTU is a boiler, in the boiler there are hundreds of wall tubes. The wall tube inside the boiler is usually ... -
Rancang Bangun Sistem Monitoring Kecepatan Angin dan Arah Angin Pada Turbin Angin Berbasis Internet Of Things (IoT)
(Universitas Sumatera Utara, 2022)The wind speed and wind direction monitoring system has been successfully designed on an IoT-based wind turbine. This tool is designed to determine the potential for wind energy in two locations, namely the TPI Nelayan ... -
Desain Sensor Fiber Optic Berbasis Microbending untuk Deteksi Beban Rendah
(Universitas Sumatera Utara, 2022)This thesis has been designed load sensor by using fiber optic based on micobending for experimental of low load detection. The aimed of this oprical fiber to quantify weight of the load. The manucfacture of the load sensor ... -
Pembuatan dan Karakterisasi Beton Polimer dengan Agregat Pasir Silika dan Batu Apung Serta Limbah Ampas Teh Sebagai Filler
(Universitas Sumatera Utara, 2022)Research has been carried out on polymer concrete made from a mixture of silica sand, pumice stone, tea dregs waste, and polyester resin. This research was conducted to determine the effect of adding tea dregs waste to ... -
Peramalan Jumlah Penduduk dengan Menggunakan Metode Pemulusan Eksponensial Berganda Dua Parameter Holt Dikabupaten Labuhan Batu
(Universitas Sumatera Utara, 2016)Analysis of time series is one that is often used as a forecast for the coming period, the method used is the exponential smoothing method. This method shows the weighting decreases exponentially with observed values of ... -
Kajian tentang Metode Zero Suffix Menggunakan Teknik Robust Ranking pada Masalah Transportasi dengan Variabel Fuzzy
(Universitas Sumatera Utara, 2016)Transportation problem is a problem that often occurs in everyday life. The transportation problem with supply amount, the amount of demand, and the costs of such conveyance is expressed by fuzzy numbers called fuzzy ... -
Kajian Metode Suksesif Interval (MSI) dalam Mengubah Data Ordinal Menjadi Data Interval dan Dampaknya terhadap Distribusi
(Universitas Sumatera Utara, 2016)Interval successive method is a method that can change the ordinal data into interval data . In a variety of statistical testing process , the data used must be interval scale , therefore , if the data held by investigators ... -
Isolasi Senyawa Flavonoida dari Bunga Tumbuhan Mawar Merah (Rosa hybrida)
(Universitas Sumatera Utara, 2016)Isolation of flavonoid compound from 820 grams flowers of Red Rose(Rosa hybrida) has been done first by extraction maceration technique with methanol solvent.Methanol fraction was evaporated, was dissolved with aethyl ... -
Perencanaan Produksi Crude Palm Oil (Cpo) dengan Metode Goal Programming (Studi Kasus: PT. Samudera Sawit Nabati, Subulussalam)
(Universitas Sumatera Utara, 2016)Production planning is an activity about determining what and how many products to be manufactured by a company in the next period. PT. Samudera Sawit Nabati (PT. SSN) has been operating based on the availability of ... -
Analisa Data Pengujian dan Kalibrasi Inkubator Perawatan
(Universitas Sumatera Utara, 2013)Testing and calibration of INCUBATOR BABY YP-930 has been performend using incu analyzer, safety analyzer 601 and held at Balai Pengamanan Fasilitas Kesehatan Republik Indonesia, with the proviso that the INCUBATOR ...