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All Journal EKSAKTA: Journal of Sciences and Data Analysis IPTEK The Journal of Engineering JFA (Jurnal Fisika dan Aplikasinya) International Journal of Marine Engineering Innovation and Research Jurnal Pengabdian kepada Masyarakat Bina Darma
Mashuri Mashuri
Institut Teknologi Sepuluh Nopember
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Physics Transportation Other

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Fuzzy T2 Hotelling (T_f^2 ) Control Chart Ayundyah Kesumawati; Mashuri Mashuri; Irhamah Irhamah
EKSAKTA: Journal of Sciences and Data Analysis VOLUME 14, ISSUE 1, February 2014
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Statistical Process Control (SPC) is a method used to monitor a process for identifying special causes of variation and necessary to improve the process. One technique commonly used in the SPC is to determine whether the process is stable or not, both the mean and variability. Multivariate control charts are used if necessary to control together two or more related quality characteristics. Sometimes in a process production there is a lack of precision in the calculation, especially if the data used in the form of either data or qualitative attributes. Fuzzy set theory, specifically discusses the development of concepts and techniques related to the sources of uncertainty or imprecision in nature. Control charts are constructed by transforming crisp numbers into fuzzy numbers can be an alternative to obtain representative results of several variables in which there are several quality characteristics. Transformation of some functions, which are used in this study is Fuzzy Median Transformation (FMT). The advantages of FMT is that it can be used for the data in the form of asymmetry. This paper will discuss about the algorithm for  Fuzzy T2  Hotelling control chart and its application to the production data of PT. IGLAS (Persero). From the results of the application of Fuzzy T2  Hotelling control chart got that out of the 5 variables that were analyzed, the dominant variables that lead to out of control is variable bottle molding process
Pengaruh Anti Oksidan Terhadap Kestabilan Sifat Fisis Bahan Polipaduan Polipropilena-Karet Alam: II. Studi Kristalinitas dan Struktur Molekul Mashuri Mashuri
Jurnal Fisika dan Aplikasinya Vol 2, No 1 (2006)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat, LPPM-ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (267.437 KB) | DOI: 10.12962/j24604682.v2i1.979

Abstract

Telah dilakukan penelitian pengaruh anti osidan Irganok 1076 terhadap kestabilan kristalinitas dan struktur molekul bahan polipaduan polipropilena(PP)-karet alam(KA). Uji kestabilan dilakukan dengan penjemuran terhadap polipaduan selama 8 dan 12 minggu di alam terbuka. Polipaduan PP-KA(1:4) dan PP-KA(1:4)-Irganok 1076 8% dibuat dengan metode blending menggunakan alat rheologi pada temperatur 176 C, rotasi blending 30 rpm selama 10 menit. Pengujian kristalinitas menggunakan X-Rays Difractometry dan pengujian struktur molekul menggunakan Fourier Transformation Infra Red (FTIR). Hasil menunjukkan terbentuknya gugus karbonil sebagai salah satu indikasi terdegradasinya polipaduan PP-KA oleh penjemuran selama 12 minggu dapatdihambat oleh anti oksidan Irganok 1076 dengan lebih kecilnya indek karbonil dibanding polipaduan tanpa Irganok. Terdegradasinya rantai polipaduan menyebabkan keteraturan susunan rantai molekul polipaduan PP-KA menurun tetapi untuk polipaduan PP-KA-Irganok 1076 penurunan derajat kristalinitasnya lebih kecil (sebesar 36%) dibanding polipaduan PP-KA tanpa anti oksidan (sebesar 50%). Perubahan kristalinitas dan struktur molekul yang diakibatkan oleh penjemuran di alam terbuka (sinar matahari) akan diikuti perubahan sifat fisis dan mekanik polipaduan PP-KA.
Desain Ergonomi Kursi Roda Listrik Dengan Lumbar Support Dan Penggerak Joystick Sebagai Teknologi Asistif Eko Nurmianto; Mashuri Mashuri; Muhammad Hilman Fatoni; Achmad Arifin
Jurnal Pengabdian kepada Masyarakat Bina Darma Vol 1 No 2 (2021): Jurnal Pengabdian kepada Masyarakat Universitas Bina Darma
Publisher : DRPM-UBD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (822.562 KB) | DOI: 10.33557/pengabdian.v1i2.1495

Abstract

Kursi roda listrik digunakan untuk membantu mobilitas penderita kelumpuhan lebih mandiri. Pada studi sebelumnya mengenai kursi roda listrik dengan myoelectric, pada bagian punggung belum menggunakan lumbar support, LS (sandaran lumbar). Dalam penelitian ini merancang lumbar support, selanjutnya membandingkan kursi roda tanpa lumbar support dengan kursi roda yang menggunakan lumbar support. Pengendalian naik turun lumbar support yang digunakan dalam penelitian ini yaitu membuat beberapa alternatif Lumbar Support. Penelitian ini bertujuan untuk menjaga pengendalian lumbar support pada kursi roda listrik. Dalam penelitian ini didapatkan kesesuaian hasil antara antropometri punggung dengan kursi roda listrik. Metode pengukuran kenyamanan lumbar support dengan menggunakan Nordic Body Map, Tingkat kepentingan dan kepuasan, dan Tingkat kelelahan (Nordic Body Map).
Dashboard Pre-Processing Data (DPD) as Data Analysis System with Technological Innovation to Perform Pre-Processing Quantitative Data Mashuri Mashuri; Albertus Eka Putra Haryanto; Yola Argatha Manik; Dinar Sukma Dewi; Tegar Primadana Putra
IPTEK The Journal of Engineering Vol 9, No 1 (2023)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23378557.v9i1.a13050

Abstract

In essence, data in real-life always needs to be pre-processed or better known as pre-processing data. Pre-processing Data is one of the early techniques for converting raw data from various sources into cleaner information that can be used for further analysis. There are three types of pre-processing data, missing values, checking outlier data, and identifying the types of distribution in the data. Currently, statistical software that offers to be used in pre-processing data analysis has been widely and is quite familiar. However, the user is often can not run the analysis quickly. Therefore, there is the idea to create and develop an application or dashboard that can be used to solve these problems. The application this at is offered and trying to be developed is called "DPD (Dashboard Pre-Processing Data)". This application serves as a tool to pre-process data quickly and efficiently. In addition, with this application, it’s expected that users can identify missing values, data outliers, and some types of data distribution, so users can determine the analysis method that will be used on the research data they have.
GPS Navigation System on Autonomous Ship as An Effort to Increase Fish Catch for Fisherman in Pamekasan Indonesia Bambang Sampurno; Ilham Farhansyah Putra; Mashuri Mashuri; Eddy Widiyono; Mahirul Mursid; Suhariyanto Suhariyanto
International Journal of Marine Engineering Innovation and Research Vol 8, No 4 (2023)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v8i4.17864

Abstract

Currently most of the marine fishing in Indonesia uses traditional boats with navigation systems using compasses and mobile phones. Besides being ineffective, this fishing system also has a high risk, so a safer fishing system is needed, namely using an autonomous boat with a system capable of attracting fish. The use of the Autonomous Surface Vehicle (ASV) for monitoring and fishing purposes has been carried out by Aryusmal (2018) [1] , namely using GPS equipped with an Arduino Uno microcontroller to carry out ship movements, and an error of 1.5 m was obtained. Whereas Permana (2018) [2] made an ASV ship with GPS equipped with an APM microcontroller and Arduino Uno, an error of 30 cm was obtained. Referring to the need for a safe fish system and the results of previous research, this paper designed an autonomous ship with a GPS navigation system using a pixhawk microcontroller which is supported by the use of a brushless motor as the main propulsion of the ship and mission planner software to determine navigation waypoints. This system is able to monitor in real time and save the results of navigation and compass movements up to the last waypoint on the Pixhawk microcontroller. To find out the performance of the ASV, waypoint latitude and longitude tests were carried out on a laboratory and field scale. Laboratory test results have an error of 1.7%, while the results of field testing error errors that occur are 4.4% at longitude and the smallest error is 1.3% at latitude. This error occurred due to field conditions due to sea water shocks. However, this error did not really affect the movement of the ASV ship, because the shift was not too far.
Co-Authors Albertus Eka Putra Haryanto Arifin, Achmad Ayundyah Kesumawati Bambang Sampurno Dinar Sukma Dewi Eddy Widiyono Eko Nurmianto Ilham Farhansyah Putra Irhamah - Mahirul Mursid Muhammad Hilman Fatoni Suhariyanto Suhariyanto Tegar Primadana Putra Yola Argatha Manik