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All Journal INSIST (International Series on Interdisciplinary Research) Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse) Jurnal Sains dan Ilmu Terapan
Adhy Prayitno
Universitas Riau
Aerospace Engineering Computer Science & IT Decision Sciences, Operations Research & Management Engineering Industrial & Manufacturing Engineering Mechanical Engineering Other

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Imaging and Programming Based Computation of Logistic Package Volumes Application on Automatic Mail Machines Adhy Prayitno; Dodi Sofyan Arief; Minarni Shiddiq; Midriem Mirdanies; Dyna Ayunita
Journal of Ocean, Mechanical and Aerospace -science and engineering- Vol 62 No 1 (2018): Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Publisher : International Society of Ocean, Mechanical and Aerospace -scientists and engineers- (ISOMAse)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (511.287 KB) | DOI: 10.36842/jomase.v62i1.150

Abstract

At present the determination of weight and volume has been widely used to assist in the process of determining costs for freight forwarding services. Shipping costs are determined by the weight of the goods, but the weight of the goods consists of two types, namely actual weight and volume weight. The weight of the weighing will be used directly if the item or box is small, but if the item is large but the weight is real then the weight of the volume will be used. Algorithms that combine triangulation and 2D measurement techniques can be used to build 3D surfaces so they can measure the volume of a product. Determination of volume in the optical scoring system can be done using the laser triangulation method and the area of 2D image measurement, then using a computer algorithm to get the results of 3D images to determine the volume of the object. The calculation process used in this study uses MATLAB software. MATLAB is the most efficient software for matrix-based numerical calculations and is widely used in mathematical calculations, development and algorithms, programming modeling, prototyping and simulation, data analysis, exploration and visualization, numerical and statistical analysis, and technical application development. The results of the study using MATLAB include students becoming more interested in learning and more independent in learning mathematics, can visualize data graphically to help analyze the data analyzed, and help in modeling the characteristics of variations in fuel mixtures which include density, viscosity, dynamic and kinematic viscosity.
Electric Power Optimizing Of Solar Panel SystemThrough Solar Tracking Implementation; A Case Study in Pekanbaru Adhy Prayitno; Muhammad Irvan; Sigit Nurharsanto; Wahyu Fajar Yantoa
INSIST Vol 2, No 2 (2017)
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (243.486 KB) | DOI: 10.23960/ins.v2i2.85

Abstract

Observations and measurements have been conducted towards a solar panel electric power output that is utilized by a solar tracking system. The electrical power output depends on the position of the sun and time and the direction of the panel surface against the angle of the incident light. For power optimization, the solar panel surface should always be directed perpendicular to the direction of the sunlight falling to the surface of the panel. The application of the solar tracking system controlled by a micro controller gives the expected results. The electrical power output of a static solar panel mounted on a fixed position becomes the benchmark of the output electric power value in this study. The measurement results of the electric power output of the solar panel with sun tracking system shows a significant increase in sunny weather conditions.The average increase of that is about 57.3%.Keywords: LDR, micro controller, optimal power output, performance improvment, sun tracking,
Pembuatan Carboxymethyl Cellulose (CMC) Dari Pelepah Kelapa Sawit Razita Hariani; Adhy Prayitno; Bahruddin Bahruddin
Jurnal Sains dan Ilmu Terapan Vol. 3 No. 1 (2020): Juli : Jurnal Sains dan Ilmu Terapan
Publisher : Politeknik Kampar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (298.147 KB) | DOI: 10.59061/jsit.v3i1.13

Abstract

Pelepah kelapa sawit mempunyai kandungan selulosa sebesar 40,96%. Selulosa merupakan bahan baku utama sintesis karboksi metil selulosa (CMC). Tujuan dari penelitian ini adalah untuk mengetahui kondisi optimum sintesis CMC dari pelepah kelapa sawit menggunakan Response Surface Methodology (RSM). Sintesis CMC terdiri dari dua tahap yaitu alkalisasi dan eterifikasi. Faktor yang diteliti pada penelitian ini adalah rasio Natrium Monokloroasetat (NaMCA) : selulosa, dan waktu eterifikasi. Respon yang dioptimasi pada CMC yang dihasilkan adalah derajat substitusi (DS), viskositas, pH dan kemurnian. Kondisi optimum sintesis CMC dari selulosa pelepah kelapa sawit didapatkan pada berat NaMCA 8 g dan waktu eterifikasi 4 jam. Hasil dari perhitungan RSM menunjukkan CMC dengan kondisi optimum memiliki nilai DS sebesar 0,81, viskositas 5,72 cP, pH 7,67 dan kemurnian 99,56% sedangkan uji verifikasi menunjukkan nilai DS sebesar 0,83, viscositas 5,81 cP, pH 7,56 and kemurnian 99,67%.
Co-Authors Bahruddin Bahruddin Dodi Sofyan Arief Dyna Ayunita Midriem Mirdanies Minarni Minarni Muhammad Irvan Razita Hariani Sigit Nurharsanto Wahyu Fajar Yantoa