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INDONESIA
Jurnal Teknik Industri
ISSN : 14112485     EISSN : 20877439     DOI : -
Core Subject : Engineering,
Jurnal Teknik Industri aims to: Promote a comprehensive approach to the application of industrial engineering in industries as well as incorporating viewpoints of different disciplines in industrial engineering. Strengthen academic exchange with other institutions. Encourage scientist, practicing engineers, and others to conduct research and other similar activities.
Arjuna Subject : -
Articles 8 Documents
Search results for , issue "Vol. 17 No. 2 (2015): DECEMBER 2015" : 8 Documents clear
Defect Detection on Texture using Statistical Approach Siana Halim
Jurnal Teknik Industri Vol. 17 No. 2 (2015): DECEMBER 2015
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (456.377 KB) | DOI: 10.9744/jti.17.2.89-96

Abstract

In this paper we present several techniques for detecting simple defect on the texture. The simple defect means, that the defect can be detected via image histogram or via wavelet of the image histogram. Hill estimator is one of the techniques that we suggest to use to solve this problem, since it does not need estimate parameters for estimating the image density
Menuju manufaktur berkelanjutan di Indonesia: Tantangan dan Kesempatan Jessica Hanafi
Jurnal Teknik Industri Vol. 17 No. 2 (2015): DECEMBER 2015
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (217.136 KB) | DOI: 10.9744/jti.17.2.123-132

Abstract

Persaingan global mendorong Indonesia untuk memajukan ekonominya. Salah satu cara untuk menjawab tantangan  globalisasi ini adalah dengan menerapkan manufaktur berkelanjutan. Manufaktur berkelanjutan berawal dari manufaktur ramping, produksi bersih dan Life Cyle Assessment dengan memperhatikan keselamatan karyawan, konsumen dan masyarakat. Terdapat berbagai hambatan dalam implementasi manufaktur berkelanjutan. Indikator keberlanjutan suatu organisasi juga beragam, yang berdasar pada tiga aspek, yaitu ekonomi, sosial dan lingkungan. Pada makalah ini akan dibahas bagaimana isu manufaktur berkelanjutan akan dilihat dari ketiga perspektif, yaitu sisi industri, pemerintah dan akademia, khususnya di Indonesia.
Model Optimisasi untuk Penjadwalan Ulang Perjalanan Kereta Api Suprayogi Suprayogi; Hery Ramdhani
Jurnal Teknik Industri Vol. 17 No. 2 (2015): DECEMBER 2015
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (725.327 KB) | DOI: 10.9744/jti.17.2.97-104

Abstract

This paper discusses the train rescheduling problem due to disturbances. The train rescheduling problem discussed in this paper is taken from a real train network of DAOP II Bandung in Jawa, Indonesia. The train network consists of block sections including unidirectional double-tracks and bidirectional single-tracks. There are some connections among trains because they use same rolling stocks. A mixed integer linear programming model is formulated to represent the problem. Main decision variables of the model are new departure and arrival times due to the disturbance. The objective function to be minimized is the total weighted delay. The model is examined using a hypothetical instance for four disturbance cases. Numerical experiments show that the model can represent the problem under study
Teknik Relaksasi Lagrange untuk Penjadwalan Pekerjaan Majemuk dengan Penggunaan Sumberdaya Simultan Suprayogi Suprayogi; Valentine Valentine
Jurnal Teknik Industri Vol. 17 No. 2 (2015): DECEMBER 2015
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (425.416 KB) | DOI: 10.9744/jti.17.2.71-80

Abstract

This paper discusses the multiple jobs scheduling problem with simultaneous resources. The problem involves one or more jobs with each job consist of a set of operations. Each operation is performed by more than one resource simultaneously. Number of units of each resource used for performing an operation is one or more units. The problem deals with determining a schedule of operations minimizing total weighted tardiness. In this paper, solution techniques based on Lagrangian relaxation are proposed. In general, the Lagrangian relaxation technique consists of three parts run iteratively, i.e., (1) solving individual job problems, (2) obtaining a feasible solution, and (3) solving a Lagrangian dual problem. For solving the individual job problems, two approaches are applied, i.e., enumeration and dynamic program¬ming. In this paper, the Lagrangian relaxation technique using the enumeration and dynamic programming approaches are called RL1 and RL2, respectively. The solution techniques proposed are examined using a set of hypothetical instances. Numerical experiments are carried out to compare the performance of RL1, RL2, and two others solution techniques (optimal and genetic algorithm techniques). Numerical experiments show that RL2 is more efficient than RL1. In terms of the solution quality, it is shown that RL2 gives same results compared to the optimal technique and genetic algorithm. However, both RL2 and genetic algorithm can handle larger problems efficiently.
Pengembangan Framework untuk Mengukur Tingkat Keberhasilan Implementasi Reverse Logistics Farida Pulansari; Dwi Sukma Donorianto; Iriani Iriani
Jurnal Teknik Industri Vol. 17 No. 2 (2015): DECEMBER 2015
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (312.078 KB) | DOI: 10.9744/jti.17.2.111-122

Abstract

Electronic Waste (E-waste) is growing attention at the end of this decade. E-waste must be managed properly. E-waste has a negative impact on the environment. E-waste contain B3 (Bahan Berbahaya dan Beracun). Reverse Logistics (RL) is one approach that able to solve these problems. The use of secondary materials through the process of remanufacturing, recycling, refurbishing, recondition are strategy to minimizing the number of e-waste. Many companies claim successfully implementing of RL. However, there are no clear indicators or parameters to assess the success of RL implementation. In this research we propose the design of reverse logistics maturity framework. Grounded Theory (GT) is chosen to design this framework. GT is a research methodology involving the construction of theory based on phenomena. This framework will be divided into five levels of maturity: Level Conventional, Managed, Developed, Innovative and Optimized. Results of research from three consumer electronics companies were in the Level Managed.
Safety Performance Index Industri Batik Tulis Berdasarkan Kriteria Majemuk Nachnul Ansori; Trisita Novianti; Fitri Agustina; Nur Rakhmawati
Jurnal Teknik Industri Vol. 17 No. 2 (2015): DECEMBER 2015
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (451.819 KB) | DOI: 10.9744/jti.17.2.105-110

Abstract

Accident generally occurs due to the activities which is done in unsafe conditions or even unsafe behavior. These conditions can influence workers productivity. In batik industries, those workers use toxic material and work in non ergonomic atmosphere. Moreover, they also do not take care of the environment and do not use personal protective equipments (PPE). Workers at Madura batik SMEs have not fully realized the significance of occupational health and safety (OHS) in their working areas. The aims of this research is to evaluate OHS performance based on the indicators of safety performance index (SPI), which is multicriteria, in that industri. The safety performance attributes were obtained from factor analysis from the previous study. The index is calculated based on the weighted evaluation results of critical behavior checklist (CBC), integrated with analytical hierarchy process (AHP). As the results, we should give priority to improve the knowledge and experience toward OHS of the workers and also improve the working environment of the Madura’s batik industries. Additionally, the performance of OHS in coloring process is also on the threshold of unsafe condition, further development on the coloring process is needed.
Solusi Optimal Model Optimisasi Robust Untuk Masalah Traveling Salesman Dengan Ketidaktentuan Kotak Dan Pendekatan Metode Branch And Bound Poppy Amriyati; Diah Chaerani; Eman Lesmana
Jurnal Teknik Industri Vol. 17 No. 2 (2015): DECEMBER 2015
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (396.171 KB) | DOI: 10.9744/jti.17.2.81-88

Abstract

Traveling Salesman Problem (TSP) merupakan teknik pencarian rute yang dimulai dari satu titik awal, setiap kota harus dikunjungi sekali dan kemudian kembali ke tempat asal sehingga total jarak atau waktu perjalanan adalah minimum. Untuk mengatasi kedakpastian jarak atau waktu perjalanan, maka perlu dilakukan pengembangan model TSP. Salah satu bidang Optimisasi yang mampu menyelesaikan permasalahan terkait ketidakpastian adalah Optimisasi Robust. Dalam makalah ini dibahas mengenai penerapan Optimisasi Robust pada TSP (RTSP) menggunakan pendekatan Box Uncertainty dan diselesaikan dengan menggunakan Metode Branch and Bound. Disajikan simulasi numerik pada software aplikasi Maple untuk beberapa kasus nyata terkait penerapan Optimisasi RTSP , seperti masalah manajemen konstruksi, penentuan jarak tempuh kota di Pulau Jawa, dan Penentuan Rute Mandiri Fun Run.
Bayesian-based Project Monitoring: Framework Development and Model Testing Budi Hartono; Riesa Ayuningtyas; Yun Prihantina Mulyani
Jurnal Teknik Industri Vol. 17 No. 2 (2015): DECEMBER 2015
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (477.585 KB) | DOI: 10.9744/jti.17.2.61-70

Abstract

During project implementation, risk becomes an integral part of project monitoring. Therefore. a tool that could dynamically include elements of risk in project progress monitoring is needed. This objective of this study is to develop a general framework that addresses such a concern. The developed framework consists of three interrelated major building blocks, namely: Risk Register (RR), Bayesian Network (BN), and Project Time Networks (PTN) for dynamic project monitoring. RR is used to list and to categorize identified project risks. PTN is utilized for modeling the relationship between project activities. BN is used to reflect the interdependence among risk factors and to bridge RR and PTN. A residential development project is chosen as a working example and the result shows that the proposed framework has been successfully applied. The specific model of the development project is also successfully developed and is used to monitor the project progress. It is shown in this study that the proposed BN-based model provides superior performance in terms of forecast accuracy compared to the extant models.

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