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All Journal Jurnal Teknologi dan Riset Terapan (JATRA) Jurnal Pengabdian kepada Masyarakat Politeknik Negeri Batam
Nur Fitria Pujo Leksonowati
Unknown Affiliation
Aerospace Engineering Computer Science & IT Economics, Econometrics & Finance Electrical & Electronics Engineering Engineering Mechanical Engineering

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Pengendalian Penularan COVID-19 Melalui Penerapan Non Medical Infant Face Shield (Nomifes) Nidia Yuniarsih; Nurul Laili Arifin; Hanifah Widiastuti; Nugroho Pratomo Ariyanto; Nurul Ulfah; Widodo Widodo; Budi Baharudin; Aulia Fajrin; Muhammad Ismail; Nur Fitria Pujo Leksonowati; Domi Kamsyah; James Siregar; Nurman Pamungkas; Sapto Wiratno Satoto; Mufti Fathonah Muvariz
Jurnal Pengabdian kepada Masyarakat Politeknik Negeri Batam Vol 3 No 1 (2021): Jurnal Pengabdian kepada Masyarakat Politeknik Negeri Batam
Publisher : Pusat P2M Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/abdimas polibatam.v3i1.2618

Abstract

Personel Protective Equipment (PPE), as prevention to curb COVID-19 transmission which mainly via droplet, is a mandatory protocol as rising COVID-19 confirmed case. Face shield can protect face from droplet exposure. Besides health care professionals, pregnant women and newborn infants are susceptible population to exposure of SARS-CoV-2. Infant under two years is not recommended to use face mask due to breahing difficulty which can lead to mortality. Therefore, face shield is recommended for infant to give protection from virus transmission. As part of community service, Politeknik Negeri Batam produces Non Medical Infant Face Shield for infant and toddler to curb COVID-19 transmission. The program aims at community health centers (Puskesmas) of Batu Aji, Tanjung Uncang, Sekupang, and Kampong Jabi Nongsa. These partners value highly the community service program in terms of simplicity, clear working instruction, comfortability, recurring sterilization, and product quality. Moreover, high demand of face shield in Puskesmas that use face shield more than three times a day, indicates benefit of the community service in providing PPE for medical treatment at Puskesmas
Simulasi Numerik Hot-Spot Stress dan Stress Concentration Factor pada Sambungan Tubular Sederhana T, Y, K, dan X Nurman Pamungkas; Suheri Suheri; Nur Fitria Pujo Leksonowati
Jurnal Teknologi dan Riset Terapan (JATRA) Vol 3 No 1 (2021): Jurnal Teknologi dan Riset Terapan (JATRA) - June 2021
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jatra.v3i1.3104

Abstract

In offshore structures installation, tubular joints are commonly used. Tubular joints fabricated with welding processes often cause high hot-spot stress (HSS). High value of HSS and stress concentration factor (SCF) in tubular joints will reduce the service life of offshore structures due to fatigue loads. In this study simple tubular junctions T, Y, K, and X were used to obtain HSS and SCF through FEM simulation. The location of the maximum HSS under axial loading varied around the initial crown, in the In-Plane Bending (IPB) loading located after the second crown, while in the Out-of-Plane Bending (OPB) loading it was around the second saddle. In general, the SCF value in the three loading models from the FEM simulation is lower than SCF formula calculations in the previous study, these results are in line with recent SCF review study.
Studi Pengaruh Flame Straightening Terhadap Kekerasan Material High Strength Low Alloy (HSLA) Nur Fitria Pujo Leksonowati; Salman Al Faris; Nurman Pamungkas
Jurnal Teknologi dan Riset Terapan (JATRA) Vol 3 No 1 (2021): Jurnal Teknologi dan Riset Terapan (JATRA) - June 2021
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jatra.v3i1.3109

Abstract

High strength low alloy (HSLA) steel has higher mechanical strength than steel in general but with easy weldability, in this study the material used is S690QL. Flame straightening is used to restore the distorted shape of the S690QL material due to the heating and cooling process during the fabrication process. The purpose of this study was to determine the hardness value of the S690QL material after going through the flame straightening process. Flame straightening process is carried out by line heating technique using temperature variations of 700 °C, 750 °C, and 800 °C for 45 minutes in each temperature variant. A nozzle with a diameter of 14 mm – 20 mm with a multi flame torch is used in the flame straightening process. As a step to reduce residual stress and stress relieving, Post Weld Heat Treatment (PWHT) with a holding time of 1 hour was carried out. The process is continued with water cooling to room temperature. Vickers hardness test is carried out by taking 9 sample points, 2 points on the base metal, and 7 points on the Heat Affected Zone area. Based on the test results, it is known that at temperatures of 700 and 750 there has been no phase change, so the highest hardness values ​​at these temperatures are 270 HVN and 295 HVN. While at a temperature of 800 °C, there was a phase change marked by the hardness value which increased to 379 HVN.
Rancang Bangun Kerangka Tanaman Hidroponik Politeknik Negeri Batam Nurman Pamungkas; Hanifah Widiastuti; Fedia Restu; Nur Fitria Pujo Leksonowati; Nurul Laili Arifin; Mufti Fathonah Muvariz; Nurul Ulfah; Widodo Widodo; Budi Baharudin; Aulia Fajrin; Annisa Fyona; Domi Kamsyah; Mega Gemala; Wowo Rosbandrio; Adhe Aryswan; James Siregar; Hendra Saputra; Benny Haddli Irawan; Ihsan Saputra; Nugroho Pratomo Ariyanto; Mutiarani Mutiarani
Jurnal Pengabdian kepada Masyarakat Politeknik Negeri Batam Vol 5 No 1 (2023): Jurnal Pengabdian kepada Masyarakat Politeknik Negeri Batam
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/abdimaspolibatam.v5i1.4866

Abstract

The hydroponic pilot project in the Batam State Polytechnic area was motivated by problems with economic conditions and declining health conditions during the Covid-19 pandemic. This project is expected to support the “growing your own food movement” in an effort to reduce unemployment, increase food security and a healthy lifestyle. The hydroponic method was chosen because it is very easy to do and does not require a large area of ​​land. In this community service activity, a hydroponic plant building framework will be made as a prototype of an efficient and efficient hydroponic building so that it can be used by the wider community. This activity is also useful for applying design knowledge as one of the PbL activities carried out by CAD, CNC, CAM, and Fabrication Engineering courses in the Mechanical Engineering Department, so that it can become an arena for higher education participation to support people's lives. The method of implementing this community service activity is to make observations to find a suitable area to build a hydroponic plant house, then the results of the observations are poured in the form of a design by utilizing software so that the materials needed and the shape of the framework that is built can be known. The last activity is making a hydroponic plant place. This activity is planned to be carried out from April to November 2021. Based on the results of the evaluation of the service program questionnaire for product distribution, it is known that the majority of respondents are satisfied with the products produced.
Identifikasi Flashing Pada Mold Alat Cukur Benny Haddli Irawan; Mufti Fathonah Muvariz; Nicolanta Hiskia Sembiring; Nur Fitria Pujo Leksonowati; Rahman Hakim; Ihsan Saputra
Jurnal Teknologi dan Riset Terapan (JATRA) Vol 5 No 1 (2023): Jurnal Teknologi dan Riset Terapan (JATRA) - June 2023
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jatra.v5i1.5239

Abstract

Molding is a process utilized by industries to shape plastic products. One of the plastic molding processes involves injection molding. Injection molding is a procedure where plastic pellets are placed into a hopper or channel and subsequently fed into a barrel. The injection is propelled by a screw mechanism through a machine nozzle and a sprue bushing enters the mold cavity. All of this occurs within a closed mold. A flashing defect in a product refers to an excess material flaw located at the product's edges. To identify the causes of flashing defects in shaving tools, a fishbone diagram is employed, categorizing factors into five: machine factors, material factors, method factors, human factors, and mold factors. The identification results show that flashing defects in shaving tools are primarily attributed to mold factors, where 37 cavities exhibit flashing defects.
Co-Authors Adhe Aryswan Annisa Fyona Aulia Fajrin Benny Haddli Irawan Budi Baharudin Domi Kamsyah Fedia Restu Hanifah Widiastuti Hendra Saputra Ihsan Saputra James Siregar Mega Gemala Mufti Fathonah Muvariz Muhammad Ismail MUTIARANI MUTIARANI Nicolanta Hiskia Sembiring Nidia Yuniarsih Nugroho Pratomo Ariyanto Nurman Pamungkas Nurul Laili Arifin Nurul Ulfah Rahman Hakim Salman Al Faris Sapto Wiratno Satoto Suheri Suheri Widodo Widodo Wowo Rosbandrio