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All Journal Jurnal Teknik Mesin Jurnal Titra Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri
Indriati Njoto Bisono
Industrial Engineering Department, Petra Christian University
Aerospace Engineering Automotive Engineering Control & Systems Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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PENINGKATAN KEAKURATAN INSPEKSI SUBDEPARTMENT QUALITY CONTROL INCOMING : STUDI KASUS Christian Davin Gunawan; Indriati Njoto Bisono
Jurnal Titra Vol 4, No 2 (2016): Jurnal Titra
Publisher : Jurnal Titra

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (220.532 KB)

Abstract

PT. X produces circuit breakers. The raw material inspection process problem is material breakout does not with standard in the production process. These problems affected the inspection accuracy level which is conducted by Quality Control Incoming subdepartment. This research aims to increase the accuration level of the inspection. Analysis using stratification, Pareto diagram, and the cause-effect diagram that shows the biggest problem on visual inspection. The proposal that is proposed and has been tested is a standardization sampling box. The application of the proposal svheme resulted in increasing in April 2016, that is no material break-out. The same result were also achieved in May and June 2016.
Perancangan dan Pengujian Lensa Fresnel pada Kolektor Surya Plat Datar Ekadewi Anggraini Handoyo; Indriati Njoto Bisono; Peter Jonathan
Jurnal Teknik Mesin (Sinta 3) Vol. 17 No. 2 (2020): OCTOBER 2020
Publisher : Institute of Research and Community Outreach, Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9744/jtm.17.2.48-56

Abstract

Energi matahari dapat dikonversikan menjadi energi termal dengan menggunakan kolektor surya maupun menjadi energi listrik dengan menggunakan sel surya/photovoltaic. Radiasi matahari bersifat menyebar, sehingga memerlukan pengumpul atau pengarah agar lebih fokus.Ada banyak penelitian yang menggunakan lensa Fresnel untuk mengumpulkan radiasi matahari pada sel surya. Sedang penelitian lensa Fresnel pada kolektor surya masih terbatas sebagai concentrator. Makalah ini membahas perancangan dan pemakaian lensa Fresnel sebagai penutup pada suatu kolektor surya plat datar. Lensa Fresnel komersial hanya memiliki 1 titik fokus, maka langkah pertama penelitian adalah merancang lensa Fresnel dengan enam titik fokus. Jarak focus dirancang agar radiasi matahari jatuh ke plat penyerap pada jarak 90 mm dari lensa Fresnel. Bahan yang digunakan adalah PMMA Polymethyl methacrylate (acrylic) dan pembuatan profil lensa menggunakan proses tekan. Lensa Fresnel yang dihasilkan berhasil memiliki titik fokus 90 mm. Lensa Fresnel yang dihasilkan dipasang sebagai penutup pada kolektor surya plat datar. Hasil yang didapat adalah temperatur plat penyerap dengan lensa Fresnel lebih tinggi daripada dengan acrylic polos yang sebenarnya lebih bening. Temperatur maksimum di kiri atas plat penyerap dengan lensa Fresnel dapat mencapai 1.42 kali lebih tinggidaripada temperatur yang dihasilkan oleh acrylic polos. Temperatur cairan di inlet dan dalam tangki pada kolektor surya yang menggunakan lensa Fresnel lebih tinggi daripada temperatur cairan di kedua lokasi yang sama yang menggunakan acrylic polos.
Mengenal Data Ekstrim dan Distribusinya Indriati Bisono
Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri Vol. 13 No. 2 (2011): DECEMBER 2011
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (551.228 KB) | DOI: 10.9744/jti.13.2.81-86

Abstract

People adopt many definitions for extremes. One such definition is that extremes are simply the upper tail data. In this paper we briefly review the types of upper tail data, the limiting distribution of extreme values, the analysis and the model diagnostics. We also provide a simple example of fitting generalized extreme values (GEV) for climate extremes
Rancangan Self Evaluation dengan Media E-Filling untuk Sertifikasi ISO 9001:2015 Natanael Tedjakusuma; I Nyoman Sutapa; Indriati Njoto Bisono
Jurnal Titra Vol 9, No 2 (2021): Jurnal Titra
Publisher : Jurnal Titra

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Abstract

This study discusses the design of a self-evaluation program with a media called e-filling for ISO 9001:2015. in this e-filling program, it is useful to help an organization create an internal management system faster, easier, and without having to sacrifice production time to prepare for ISO 9001:2015 certification. This e-filling program packs the concept of self-evaluation so that in the program there are various questions that are in accordance with the clauses in ISO 9001:2015 along with the assessment points. so that auditors no longer need to come to a company to audit the completeness of documents to meet the requirements of the ISO 9001:2015 clause. This program, also helps in the COVID-19 pandemic, where it is not recommended to have direct contact between humans, so with this program, auditors no longer need to have direct contact because everything is done online.
Pengembangan Manajemen Gudang Menggunakan Opportunity Solution Tree Johanes Kevin Cahyadi; Indriati Njoto Wibisono
Jurnal Titra Vol 11, No 2 (2023): Jurnal Titra 11(2) Juli 2023
Publisher : Jurnal Titra

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Abstract

PT. Krakatau Karya Abadi is a startup company with a focus on building a network of agents who distribute fast moving consumer goods (FMGC). By launching an application called Super, to expand and facilitate customer transactions in shopping for products. In the distribution process, a warehouse is needed as a place to store products to meet consumer needs.In order to use the warehouse optimally, warehouse management is needed. Warehousing management itself is an arrangement for managing warehousing and distribution of goods so that the stored goods remain in good condition and are distributed in a timely manner, the specifications are appropriate, and of course the amount is correct. The research focuses on the logistics division on the problem of warehouse management activities. The proposed improvement in warehouse management is related to the determination and development of an inventory system.
Co-Authors Christian Davin Gunawan Ekadewi Anggraini Handoyo I Nyoman Sutapa Johanes Kevin Cahyadi Natanael Tedjakusuma Peter Jonathan