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Contact Name
Dr. Siana Halim
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Phone
62312983139
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Editorial Address
Jl. Siwalankerto 121-131
Location
Kota surabaya,
Jawa timur
INDONESIA
Jurnal Teknik Industri
ISSN :  14112485     EISSN : 20877439     DOI : -
The Jurnal Teknik Industri is published biannually, in June and December, by Petra Christian University. 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.
Articles 303 Documents
Vehicle Routing Problem with Backhaul, Multiple Trips and Time Window Ong, Johan Oscar; ., Suprayogi
Jurnal Teknik Industri Vol 13, No 1 (2011): JUNE 2011
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Original Source | Check in Google Scholar | Full PDF (276.788 KB) | DOI: 10.9744/jti.13.1.1-10

Abstract

Transportation planning is one of the important components to increase efficiency and effectiveness in the supply chain system. Good planning will give a saving in total cost of the supply chain. This paper develops the new VRP variants’, VRP with backhauls, multiple trips, and time window (VRPBMTTW) along with its problem solving techniques by using Ant Colony Optimization (ACO) and Sequential Insertion as initial solution algorithm. ACO is modified by adding the decoding process in order to determine the number of vehicles, total duration time, and range of duration time regardless of checking capacity constraint and time window. This algorithm is tested by using set of random data and verified as well as analyzed its parameter changing’s. The computational results for hypothetical data with 50% backhaul and mix time windows are reported.
Penentuan Rute Pengiriman Pupuk Urea Bersubsidi di Karanganyar Priyandari, Yusuf; ., Yuniaristanto; Christiawan, Yahuda Patria
Jurnal Teknik Industri Vol 13, No 1 (2011): JUNE 2011
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Original Source | Check in Google Scholar | Full PDF (275.392 KB) | DOI: 10.9744/jti.13.1.11-18

Abstract

This paper develops a vehicle routing problem (VRP) model for determining the routes in urea fertilizer distribution from a depot to retailers. The distribution is done in work days which uses trucks, each truck can serve more than one route (multiple trips), and each retailer has a time window. The vehicle routing model is built in a mixed integer linear programming (MILP) and the objective function is minimizing total transportation cost. The distances from the distributor to retailers and inter-retailers do not use Euclidian approach but the road network on a digital map in order to make the route solution is more realistic. Historical distribution data was used to test the model. The result shows that the model can minimize the cost about 2.28% which is compared to the original routes.
Pemodelan Time Series Multivariat secara Automatis Halim, Siana; Chandra, Arif
Jurnal Teknik Industri Vol 13, No 1 (2011): JUNE 2011
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Original Source | Check in Google Scholar | Full PDF (276.467 KB) | DOI: 10.9744/jti.13.1.19-26

Abstract

This research aims at establishing model of multivariate time series by means of econometric instruments. Four instruments in use are vector auto regressive (VAR), structural vector auto regressive (SVAR), vector error correction model (VECM), and structural vector error correction (SVEC). VAR and VECM are employed to estimate and construct models and, subsequently, predict the future values of an object. SVAR and SVEC serve to analyze innovative structures of a model. VAR and SVAR can be implemented only to stationary data whilst VECM and SVEC can be applied to non-stationary inputs. The identification and estimation of the model in this research are specifically designed by R software. Based on this software, all the aforestated models are conclusively able to identify dynamic relationship of endogenous variabel in a model well.
Integrasi Produksi - Distribusi pada Supply Chain dengan Pendekatan Hybrid Analitik - Simulasi Garside, Annisa Kesy; Wahyuono, R. Hadi; Widyarini, Tiananda
Jurnal Teknik Industri Vol 13, No 1 (2011): JUNE 2011
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Original Source | Check in Google Scholar | Full PDF (251.969 KB) | DOI: 10.9744/jti.13.1.27-36

Abstract

Integrated production-distribution problem resolution using analytical model lacks of consideration of many uncertainties along supply chain line such as delays, queues, machine breakdown, vehicle malfunction, and environmental factor. By utilizing simulation as complex stochastic system modelling, this research aims to develop hybrid analytical-simulation approach to resolve integrated production-distribution model. Time capacity adjustment is required if production-distribution plan obtained from analytical model requires longer production and delivery time than available. The adjustment is using a procedure developed based on duration obtained from simulation model and is used to obtain adjusted time capacity. The implementation of hybrid method to resolve integrated production-distribution problem on two echelon supply chain with 2 factories and 5 DCs shows a feasible solution was obtained on the third iteration
Dampak Penerapan Kultur Lokal Tri Hita Karana terhadap Orientasi Kewirausahaan dan Orientasi Pasar Riana, I Gede
Jurnal Teknik Industri Vol 13, No 1 (2011): JUNE 2011
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Original Source | Check in Google Scholar | Full PDF (126.428 KB) | DOI: 10.9744/jti.13.1.37-44

Abstract

This study aims to investigate the impact of Tri Hita Karana culture toward entrepreneurial orientation and market orientation of SMEs of silver craft in Bali. The population of this research is all small and medium size enterprises of silver craft in Bali. By using purposive random sampling, 110 small and medium size enterprises located in four regencies in Bali were selected as samples. The data collection technique was distributing questionnaires. Furthermore, to test the inter-variabels influence, inferential analysis of Structural Equation Modeling (SEM) is applied using Partial Least Square (PLS) approach. The findings of this research are Tri Hita Karana culture could improve the entrepreneurial orientation and market orientation. It was also found that the entrepreneurial orientation influence the market orientation.
Base-Stock Level yang Meminimasi Biaya pada Permasalahan Single Order Octavia, Tanti; ., Felecia; Natalia, Grace
Jurnal Teknik Industri Vol 13, No 1 (2011): JUNE 2011
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Original Source | Check in Google Scholar | Full PDF (170.802 KB) | DOI: 10.9744/jti.13.1.45-50

Abstract

The purpose of this research is to conduct an analysis on demand characteristic and inventory cost which might potentially influence the determination of base-stock level. Appropriate base-stock level will determine the maximum profit and also reduce the stockout cost for fashion products which has high demand uncertainty and single order problem. Case study is applied on a garment company with eight fashion product types that can be classified into short and long lifetime. The effect of coefficient variation, salvage price and stockout cost is analyzed towards profits and base stock level. It can be concluded that demand variability does not affect base stock level, while stockout cost and salvage price does.
Model Pemangku Kepentingan dalam Keberhasilan Proyek Chandra, Herry Pintardi; ., Indarto; Wiguna, I Putu Artama; Kaming, Peter F.
Jurnal Teknik Industri Vol 13, No 1 (2011): JUNE 2011
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Original Source | Check in Google Scholar | Full PDF (140.254 KB) | DOI: 10.9744/jti.13.1.51-58

Abstract

Stakeholder condition is particularly important to reach project success. The objective of this study is to investigate the stakeholder conditions which are suggested in three parts; stakeholder impact, stakeholder engagement, and stakeholder psychological empowerment on project success. The data obtained from a questionnaire survey administered to 197 respondents for initial research, 204 for main research, and 5 construction companies for validation research by using structural equation modeling (SEM) with program AMOS 16. The results indicated that stakeholder psychological empowerment applying of the ability to perform has a significant influence on project success measured by quality performance. On the other hand, stakeholder engagement reflected by engagement scope has no significant influence on project success
A Modeling of Multi-Echelon Suppliers’ Chain for Deteriorating Items Yu, Jonas; Widyadana, G.A.
Jurnal Teknik Industri Vol 13, No 2 (2011): DECEMBER 2011
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Original Source | Check in Google Scholar | Full PDF (422.638 KB) | DOI: 10.9744/jti.13.2.59-64

Abstract

Inventory models for a policy of retail pricing and perishable items have been developed in many papers, but very few of the studies incorporate both of these effects. This study integrates the two conditions from a three-echelon supplier’s chain and offers a mathematical modeling for deteriorating inventory system with an optimal joint-cost policy. Exponentially deteriorating items with no shortages is assumed in this study. Two scenarios are considered. Scenario 1 assumed one supplier, one distributor and one retailer occurs at the regular inventory replenishment time, and scenario 2 assumes two suppliers, one distributor and two competitive retailers that to address this issue, we broaden the benchmark setting by letting the independent retailer channel be a duopoly. The mathematical model describes how the integrated approach to decision making can achieve global optimality as compared to independent decision by the suppliers, the distributor, and the retailers. A computer code is developed to derive the optimal solution. Numerical examples and sensitivity analysis are given to validate the results of the system.
Integrasi Taguchi Loss Function dengan Fuzzy Analytical Hierarchy Process dalam Pemilihan Pemasok Indrapriyatna, Ahmad S.; Meuthia, Yumi; Fatrias, Dicky; Gusti, Monalisa
Jurnal Teknik Industri Vol 13, No 2 (2011): DECEMBER 2011
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Original Source | Check in Google Scholar | Full PDF (503.238 KB) | DOI: 10.9744/jti.13.2.65-72

Abstract

One important issue in the line production is the selection of the companys best supplier. Various criteria should be considered for determining the best supplier. Answering to that challenge, we apply Taguchi loss function- Analytical Hierarchy Process Fuzzy-Linear Programming (Taguchi loss function-Fuzzy AHP) to find out the best supplier. Moreover, we also consider multiple criteria, i.e., goods’ completeness, quality, delivery, and quality loss in that analysis. By maximizing the suppliers’ performances based on each criterion and aggregated the suppliers’ performances based on the overall criteria, we selected the best one. Applying this method for selecting the best pressure gauge’s supplier in PT. Coca Cola Bottling Indonesia Central Sumatera (PT. CCBICS), we found out that among three suppliers, the second supplier is the best one.
Mathematical Method for Predicting Nickel Deposit Based on Data from Drilling Points Cahyono, Edi; Rahardjo, Sapto; Sani, Asrul
Jurnal Teknik Industri Vol 13, No 2 (2011): DECEMBER 2011
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Original Source | Check in Google Scholar | Full PDF (509.098 KB) | DOI: 10.9744/jti.13.2.73-80

Abstract

In this article we discuss several methods for predicting nickel ore content inside the soil under a given area/region. The prediction is the main objective of the exploration activity which is very important for conducting the exploitation activity from economic point of view. The prediction methods are based on the data obtained from the drilling activity at several ‘points’. The data yields information on the nickel density at those points. Nickel density over the region is approximated (with an approximate function) by applying interpolation and/or extrapolation based on the data from those points. The nickel content is predicted by applying integral of the approximate function over the given region

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