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Enhanced Active Filter for Single-Phase Controlled Rectifier Applications Jacob Dethan; Abidin Abidin; Benny Daniawan; Rino Rino
IJEIS (Indonesian Journal of Electronics and Instrumentation Systems) Vol 10, No 2 (2020): October
Publisher : IndoCEISS in colaboration with Universitas Gadjah Mada, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijeis.60722

Abstract

Active filter can be used to increase the performance of single-phase controlled rectifier by reducing the generated ripple and harmonic distortion. Active filter can also increase power factor and efficiency of thyristor. In this work, active filter was designed by using NPN Bipolar Junction Transistor (BJT) compared with active filter created by utilizing NPN Metal Oxide Semiconductor Field Effect Transistor (MOSFET). The obtained efficiency of BJT based active filter with firing angles of 0° to 90° were 87.01% - 96.67%. Whereas, MOSFET based active filter produced comparable efficiency between 90.62% - 96.07%. It can be seen that MOSFET based active filter produced higher efficiency at firing angle of 0° which was 90.62% compared to BJT based active filter that has produced efficiency of 87.01% at the same firing angle.  Both active filters obtained similar power factors within the range of 0.57 lagging – 0.92 lagging. It is expected that this work can be useful for the design of active filters for various power electronics applications including the design of High Voltage Direct Current (HVDC) power transmission system.
Designing Strategies and Green Business Models in the Coconut Oil Industry Abidin Abidin
Primanomics : Jurnal Ekonomi & Bisnis Vol 19 No 2 (2021): Primanomics : Jurnal Ekonomi dan Bisnis
Publisher : Fakultas Bisnis

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31253/pe.v19i2.583

Abstract

As a tropical country, Indonesia has enormous potential for the development of an industry with raw materials from coconut. One of the products that can be developed from coconut is coconut oil. The purpose of this research is to create a strategy and green business model in the medium coconut oil industry (klentik) by utilizing the waste it produces into a variety of prospective products with added value. Various prospective and value added products can be developed from coir, shell, coconut water, dregs, and blondo which are byproducts or waste from the coconut oil production process. The implementation of green business strategies and models has an impact on the sustainability of the medium-sized coconut oil industry, both in terms of profitability, social and environmental aspects.
Determining Prospective Coconut Shell Products using Analytical Hierarchy Process (AHP) Abidin Abidin
Tech-E Vol 4 No 2 (2021): Tech-E
Publisher : Fakultas Sains dan Teknologi-Universitas Buddhi Dharma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31253/te.v4i2.539

Abstract

Coconut shell can be used as raw material for creative industries, producing ample artistic products. This present work aimed to determine the most prospective product among coconut shell items produced by local craftsman in Pangandaran using AHP. As the result, coco mosaic is found to be the first with priority weight of 0.3339. It has a promising market, for domestic and export product, with price of Rp. 250.000/m2 and US$ 27 – 40/m2, respectively.
Implementasi Fuzzy Logic Untuk Menilai Kondisi Air Aquarium Berbasis IoT Junaedi Junaedi; Benny Daniawan; Abidin Abidin; Aditiya Hermawan
FORMAT Vol 12, No 1 (2023)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/format.2023.v12.i1.003

Abstract

Fluktuasi suhu yang sangat tinggi yang menyebabkan kematian masal pada budidaya ikan hias. Kematian ikan hias ini disebabkan dari kondisi air yang kurang baik sehingga diperlukan sebuah sistem mekanisme yang dapat memantau kondisi air didalam sebuah akuarium secara realtime tanpa batasan oleh jarak dan dapat menjadi solusi atas perubahan suhu yang naik turun secara signifikan. Bila kondisi air terpantau secara realtime tentu saja ikan hias yang dirawat diakuarium menjadi lebih sehat dan tidak mudah mati sehingga akan menghasilkan kualitas ikan hias yang terbaik. Untuk itu dibutuhkan sebuah sistem yang dapat memantau kondisi air yang ada diakuarium untuk menurunkan jumlah kematian pada ikan hias. Hasil dari penelitian adalah sebuah sistem yang mampu memantau kondisi air pada akuarium, seperti : memantau dan mengontrol suhu, memantau tingkat kekeruhan pada air, dan memantau ph air. Sistem ini dibuat dengan sebuah mikrokontroller arduino yang terhubung dengan internet dengan dukungan Internet of Things (IoT) dan metode pengukuran Fuzzy Logic. Sistem ini juga dapat menyimpan historis dengan bantuan sebuah platform dari Thingspeak dan MitApp untuk pembuatan mobile aplikasinya.
Analisis kualitas pada Proses Pencelupan dengan Metode DMAIC di Departemen Dyeing PT. Indonesia Synthetic Textile Mills Alvian Ristandi; Abidin Abidin
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 7 No. 3 (2024): July
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v7i3.27672

Abstract

In the industrial sector, the large number of companies creates fierce competition. This encourages the company to increase its competition, which can be done through quality improvement. All companies are trying to achieve this, including PT. Indonesia Synthetic Textile Mills. PT. Indonesia Synthetic Textile Mills is a company engaged in the textile industry. In the production process, defective products are still produced. The application of the define, measure, analyze, improve, and control (DMAIC) method found 16 types of defects. A sigma level of 4.34 indicates a fairly good product quality level. Most defects come from six types of defects, namely: kako yogore, kako shiwa, kako atari, iro yogore, atary calender, and friction mark. Defects are caused by man, material, machine, method, environment, and process factors. For quality improvement should be done from defects that most often occur.