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Aplikasi Penentuan Tarif Listrik Menggunakan Metode Fuzzy Sugeno Santosa, Hari
JSINBIS (Jurnal Sistem Informasi Bisnis) Vol 4, No 1 (2014): Volume 4 Nomor 1 Tahun 2014
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1819.643 KB) | DOI: 10.21456/vol4iss1pp28-39

Abstract

This reasearch applied Sugeno fuzzy method for determining electricity tariff  based on the data of electric customers 450 VA and 900 VA from PLN APJ South Semarang. Tariff of  PLN clasifications calculation is done in a progressive way with three block/ classification tariff . This method is considered less representative because many users who consume less or more electrical energy (kWh) in one block/class charged or valued equally. Electric customer data during the 5 months from May to September 2012, which contains a large kWh consumption is then calculated by means of progressive tariff . The data is then performed clustering with FCM method (Mean C Fuzz) into 5 groups, thus obtained cluster centers or power usage and price rates. The power usage and price of the cluster centers are used ​​as a reference manufacture and fed into the membership function of fuzzy inference system  built by Sugeno method. This research used the triangular shape of the curve membership function.The system  built in the form of application Sugeno fuzzy method which is tested by inserting a number of sample test data . The results are  the tariff  to be paid by electricity customers . The tariff is resulting from the calculation of the system compared to the tariff calculated in a progressive way of PLN. The difference in total tariff to customers for power of 450 VA Rp 93.3107   or 0.004%, while for the 900 VA at Rp  3503.2  or 0.12 %. The tariff were calculated using Sugeno fuzzy method from this research is more fair to the consumer  there is increase  in revenue for PLN.   Keywords : Fuzzy Sugeno; Tariff classification; Calculation
Kadar Albumin Ikan Glodok Segar Boleophthalmus boddarti dengan Metode Biuret Belqis, Farah Nabila; Santosa, Hari; Syauqi, Ahmad
Jurnal SAINS ALAMI (Known Nature) Vol. 4 No. 2 (2022)
Publisher : FMIPA UNISMA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/j.sa.v4i2.10373

Abstract

one of which is mudskipper. The species Boleophthalmus boddarti is able to survive outside the water for long periods, spending time outside the surface of the water walking, wallowing in mud, and entering burrows it creates. The purpose of this study was to analyze the albumin levels in fresh mudskipper meat of Boleophthalmus boddarti species using the biuret method. The research method is descriptive and is repeated three times. Using the biuret method with the spectrophotometer technique the standard curve equation y = 0.0482x + 0.0036. The highest albumin yield was found in the head meat, weighing 0.085 g with the absorbance in the spectrophotometer was 92.80 nm. Compared with the tail meat, the weight of albumin is 0.080 g and the absorbance is 70.08 nm. The greater the absorbance effect on albumin levels, the average measurement of albumin content of mudskipper species Boleophthalmus boddarti, the highest was found in the head meat, namely 93.667% and the albumin content in the meat of the tail was lower, namely 65.97%.Keywords: Albumin, Protein, Boleophthalmus boddarti ABSTRAK Albumin merupakan komponen protein dalam  plasma yang dapat larut dalam air. Albumin dapat di jumpai dalam sebagian besar protein dalam ikan, salah satunya yaitu ikan glodok. Spesies Boleophthalmus boddarti mampu bertahan hidup di luar perairan dalam waktu yang lama, menghabiskan waktunya di luar permukaan air dengan berjalan, berkubang di lumpur, dan memasuki liang yang dibuatnya. Tujuan dari penelitian ini adalah untuk menganalisa kadar albumin pada daging ikan glodok segar spesies Boleophthalmus boddarti dengan metode biuret. Metode penelitian adalah deskriptif dan pengulangan tiga kali. Menggunakan metode biuret dengan teknik spektrofotometer persamaan kurva standart y = 0,0482x + 0,0036. Hasil albumin tertinggi di dapatkan pada bagian daging kepala yaitu seberat 0,085 gr dengan absorbansi dalam spektofotometer adalah 92,80 nm. Dibandingkan dengan bagian daging ekornya  berat albumin yang di dapatkan seberat 0,080 gr dan absorbansi  70,08 nm. Semakin besar absorbansi berpengaruh terhadap kadar albumin, rata – rata pengukuran kadar albumin ikan glodok spesies Boleophthalmus boddarti paling tinggi terdapat pada daging bagian kepala yaitu 93,667 % dan kadar albumin pada daging bagian ekornya lebih rendah yaitu 65,97 %. Kata kunci : Albumin, Protein, Boleophthalmus boddarti