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All Journal Jurnal Rekayasa dan Manajemen Sistem Industri Rekayasa Mesin Journal of Engineering and Management in Industrial System
Putro, Wisnu Wijayanto
Unknown Affiliation
Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Industrial & Manufacturing Engineering Mathematics Mechanical Engineering

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Pengaruh Penggunaan Cairan Pendingin (Coolant) terhadap Keausan Pahat Bubut HSS Widiyawati, Sri; Novareza, Oyong; Sulistyarini, Dwi Hadi; Putro, Wisnu Wijayanto
Jurnal Rekayasa Mesin Vol 11, No 3 (2020)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jrm.2020.011.03.19

Abstract

Lathe Machine can use for several kinds of the process such as turning, drilling, boring, tapering, and threading. The lathe machine process requires some interaction between processing material with the chisel. Time processing that reaches the worn-out limit is likely called chisel life. One of the factors that affected chisel worn-out is the use of coolant. Therefore researched the effect of one of the variable process that is coolant to HSS Carbide worn-out chisel to predict the lifetime of it. This research was conducted three times without using a coolant, using a coolant ratio of 1:30, and using a coolant ratio of 1:40. The spindle speed of the lathe used is 400 rpm. The tool wear was analyzed through measurement with callipers and the help of CorelDraw X7 software. Based on the measurements made, the results showed that the highest tool wear was found in HSS chisels with 1:40 coolant application, which was a reduction of 1.4 mm.
ANALISIS BEBAN KERJA OPERATOR CETAK MENGGUNAKAN METODE WORKLOAD ANALYSIS SEBAGAI PERTIMBANGAN PEMBERIAN INSENTIF PEKERJA (STUDI KASUS CV ANEKA GRAFIKA, MALANG) Dewi, Melathi Chintia; Putro, Wisnu Wijayanto
Jurnal Rekayasa dan Manajemen Sistem Industri Vol 9, No 8 (2021)
Publisher : Program Studi Teknik Industri Fakultas Teknik Universitas Brawijaya

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Abstract

Jika membutuhkan abstrak atau isi jurnal silahkan menghubungi author melalui email chintiamelathi@gmail.com atau wisnu.wp31@ub.ac.id Dipublikasikan tanggal: 19 Oktober 2021
ANALYSIS OF PHYSIOLOGICAL ERGONOMICS FOR NIGHT SHIFT WORKERS CORRELATED WITH SLEEP QUALITY AND TIME TO RECOVERY Sugiono, Sugiono; Yuenyongchaiwat, Kornanong; Azlia, Wifqi; Lukodono, Rio Prasetyo; Putro, Wisnu Wijayanto; Sari, Sylvie Indah Kartika; Indrayadi, Bambang
JEMIS (Journal of Engineering & Management in Industrial System) Vol 11, No 2 (2023)
Publisher : Industrial Engineering Department, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jemis.2023.011.02.5

Abstract

The worker’s recovery time from physical and mental workload is a crucial factor for office and factory management and it will effect on the working performance and design working system. The aim of this paper is to investigate the impact of physiological conditions on sleep quality and time to recovery for night shift electric steam power plant workers. The research is started with study literatures on physiology ergonomics, sleep quality measurement, human metabolism, expenditure energy graph and physical/mental workload. The research worked with 50 samples (age between 30 to 45 years old) who have duty to control the electric steam power plant on dynamic computer screen in the night shift. The Pittsburgh Sleep Quality Index (PSQI) questionnaire was used subjectively to measure the value of sleep quality on 19 self – rated questions that assessed various sleep quality – related factor over the previous month. To know the speed of Time to Recovery (TTR), every worker perform a treadmill load with constant speed of 5 Km/hour for 10 minutes. Heart rate changes before activity, during activity (treatment) and TTR are recorded and it be analysed the pattern of relationship conducting to PSQI score. According to the data analysis, the higher PSQI score the longer time consume by workers to recovery. Moreover, Pearson statistic test results found that there is a strong relationship between sleep quality (PSQI value) and TTR for workers with value of 0.853. In sort, improving the quality of sleep for night shift electric steam power plant workers can definitely improve work performance on a shorter rest time or healthier conditions of workers.
TAGUCHI EXPERIMENTAL DESIGN FOR ROASTING PARAMETER TO IMPROVE COFFEE POWDER QUALITY Putro, Wisnu Wijayanto; Oktavianty, Oke; Novareza, Oyong; Swara, Suluh Elman; Rachmansyah, Ihram
JEMIS (Journal of Engineering & Management in Industrial System) Vol 12, No 1 (2024)
Publisher : Industrial Engineering Department, Faculty of Engineering, Universitas Brawijaya

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Abstract

Quality improvement is important to reach customer satisfaction and gain the competitive advantage. This research was using the Taguchi experiment design to obtain a combination of roasting parameters, which could in turn improve the quality of coffee powder. During the roasting process, the acids that were naturally contained in coffee beans were transformed into acetic acid, malic acid, citric acid, and phosphoric acid, which in turn contributed to the coffee’s actual taste. Several key factors contributed to the taste of coffee powders, namely roasting temperature, roasting time, the weight per roasting, and cooling time. The significance factor to improve quality of Robusta coffee powder namely roasting temperature on 185 °C, roasting time in 20 minutes, weight per roasting is 7.5 kilograms and cooling time is 10 minutes. The organoleptic tests of the resulting coffee powders showed an average of 4.93 with regards to consumer rating. The experiment result revealed the optimal setting level that should be applied in the production process of coffee powders for gaining better quality and thus more favourable to consumers.
WORK SAMPLING METHOD FOR ANALYSIS OF PERFORMANCE AND DETERMINING THE NUMBER OF WORKERS IN THE WAREHOUSE DEPARTMENT Sari, Sylvie Indah Kartika; Winata, Bintoro Dwi Krisna; Andriani, Debrina Puspita; Putro, Wisnu Wijayanto
JEMIS (Journal of Engineering & Management in Industrial System) Vol 9, No 1 (2021)
Publisher : Industrial Engineering Department, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jemis.2021.009.01.6

Abstract

Industrial competition demands that each company be effective and efficient, hence companies need to make optimal use of resources. The purpose of this research is to determine the productivity of the workers in completing their work and to discover how much workload is caused by the activities carried out. In addition, recommendations for improvements were also given as an effort to reduce the high rate of overtime hours and determine the appropriate number of the workforce at spare parts and raw materials division. The results showed that some workforces have an uneven workload.
ANALISIS PENGENDALIAN RISIKO KECELAKAAN KERJA PADA PERBAIKAN JEMBATAN PIPA PERUMDA AIR MINUM TUGU TIRTA MALANG Hartawan, Fajar Aulia; Putro, Wisnu Wijayanto
Jurnal Rekayasa dan Manajemen Sistem Industri Vol. 11 No. 9 (2023):
Publisher : Program Studi Teknik Industri Fakultas Teknik Universitas Brawijaya

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Abstract

Jika membutuhkan abstrak atau isi jurnal silahkan menghubungi author melalui e-mail fajar99auliahartawan@gmail.com atau wisnu.wp31@ub.ac.id Dipublikasikan tanggal: 24 November 2023
ANALISIS BEBAN KERJA KARYAWAN UNTUK MENGETAHUI KEBUTUHAN JUMLAH KARYAWAN PADA DIVISI MARKETING DENGAN METODE FULL TIME EQUIVALENT (STUDI KASUS: KOPERASI ANUGERAH JAYA MANDIRI) Eduardo, Gabriel; Putro, Wisnu Wijayanto
Jurnal Rekayasa dan Manajemen Sistem Industri Vol. 12 No. 3 (2024):
Publisher : Program Studi Teknik Industri Fakultas Teknik Universitas Brawijaya

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Abstract

Jika membutuhkan abstrak atau isi jurnal silahkan menghubungi author melalui e-mail abelgabriel26@gmail.com atau wisnu.wp3@ub.ac.id Dipublikasikan tanggal: 17 Juni 2024
ANALISIS BEBAN KERJA FISIK DAN MENTAL DENGAN METODE CARDIOVASCULAR LOAD (CVL) DAN NASA-TLX PADA PEKERJA PERBAIKAN KAPAL DIVISI KAPAL PERANG (STUDI KASUS PT PAL INDONESIA) Nisardani, Agusthania Salsavi Putri; Putro, Wisnu Wijayanto
Jurnal Rekayasa dan Manajemen Sistem Industri Vol. 12 No. 3 (2024):
Publisher : Program Studi Teknik Industri Fakultas Teknik Universitas Brawijaya

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Abstract

Jika membutuhkan abstrak atau isi jurnal silahkan menghubungi author melalui e-mail agusthaniaspn@gmail.com atau wisnu.wp31@ub.ac.id Dipublikasikan tanggal: 03 Juli 2024
ANALISIS BEBAN KERJA PADA PRODUKSI BATAKO DENGAN METODE WORK SAMPLING DAN CARDIOVASCULAR LOAD (CVL) (Studikasus : UD Duta Mas) Putra, Putu Degantara Surya; Putro, Wisnu Wijayanto
Jurnal Rekayasa dan Manajemen Sistem Industri Vol. 12 No. 5 (2024):
Publisher : Program Studi Teknik Industri Fakultas Teknik Universitas Brawijaya

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Abstract

Jika membutuhkan abstrak atau isi jurnal silahkan menghubungi author melalui e-mail degantarasurya@gmail.com atau wisnu.wp31@ub.ac.id Dipublikasikan tanggal: 10 Juli 2024
ANALISIS POTENSI BAHAYA PADA MINI FACTORY PT. KTHR INDONESIA MENGGUNAKAN METODE HAZARD AND OPERABILITY STUDY (HAZOP) DAN JOB SAFETY ANALYSIS (JSA) Sembiring, Gareth Pindonta; Putro, Wisnu Wijayanto
Jurnal Rekayasa dan Manajemen Sistem Industri Vol. 12 No. 7 (2024):
Publisher : Program Studi Teknik Industri Fakultas Teknik Universitas Brawijaya

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Abstract

Jika membutuhkan abstrak atau isi jurnal silahkan menghubungi author melalui e-mail garethpindonta@gmail.com atau wisnu.wp31@ub.ac.id Dipublikasikan tanggal: 18 Juli 2024
Co-Authors Ayasy, Syamil Azlia, Wifqi Debrina Puspita Andriani Dewi, Melathi Chintia Dwi Hadi Sulistyarini Eduardo, Gabriel Hartawan, Fajar Aulia Hidayah, Nabilah Dzatil Ihram Rachmansyah, Ihram Indrayadi, Bambang Maulana, Dimas Bintang Ningrum, Nur Afia Tri Nisardani, Agusthania Salsavi Putri Oke Oktavianty Oyong Novareza Palimbany, Ade Ikhsan Putra, Putu Degantara Surya Putra, Rizky Ariftia Qomariyatus Sholihah Rifqi, Rayhan Rio Prasetyo Lukodono Sari, Sylvie Indah Kartika Sembiring, Gareth Pindonta Sri Widiyawati Sugiono Sugiono Suluh Elman Swara Taffi, Dalish Trisnadi, Muhammad Ghifari Maulana Winata, Bintoro Dwi Krisna Yuenyongchaiwat, Kornanong