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Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri

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Published by Universitas Kristen Petra Surabaya

ISSN : 14112485 EISSN : 20877439 DOI : -

Core Subject : Engineering,

Industrial & Manufacturing 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.

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Articles 412 Documents

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Credit Scoring Modeling Siana Halim; Yuliana Vina Humira
Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri Vol. 16 No. 1 (2014): JUNE 2014
Publisher : Institute of Research and Community Outreach - Petra Christian University

It is generally easier to predict defaults accurately if a large data set (including defaults) is available for estimating the prediction model. This puts not only small banks, which tend to have smaller data sets, at disadvantage. It can also pose a problem for large banks that began to collect their own historical data only recently, or banks that recently introduced a new rating system. We used a Bayesian methodology that enables banks with small data sets to improve their default probability. Another advantage of the Bayesian method is that it provides a natural way for dealing with structural differences between a bank’s internal data and additional, external data. In practice, the true scoring function may differ across the data sets, the small internal data set may contain information that is missing in the larger external data set, or the variables in the two data sets are not exactly the same but related. Bayesian method can handle such kind of problem.

Does the Rabbit's Foot Actually Work? The Causal Effect of Foreign Ownership on Firm Productivity in Three ASEAN Countries Inggrid Inggrid
Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri Vol. 17 No. 1 (2015): JUNE 2015
Publisher : Institute of Research and Community Outreach - Petra Christian University

Voluminous studies have examined the relationship between foreign ownership and firm productivity. Two general patterns emerge at the empirical level: they are essentially correlational and results are mixed. This paper estimates the causal effect of foreign presence on a variety of productivity measures. We rely on a selection on observables approach based on the idea that all variables that influence foreign ownership status and firm productivity are fully captured by the available control variables, eliminating the problem of selection bias. Using firm-level data from three ASEAN countries, the study finds that productivity of foreign-owned firms is consistently above that of domestically-owned firms regardless of different productivity measures and types of matching algorithms. This result suggests to a large extent the benefits of foreign participation in the economy.

SERVICE QUALITY CONTROL MEASUREMENT: QUALITOMETRO II METHOD Rosna Laksimon; Henry Pribadi
Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri Vol. 9 No. 1 (2007): JUNE 2007
Publisher : Institute of Research and Community Outreach - Petra Christian University

High quality of service is imperative for competitiveness of a service industry. In order to provide much better service, a deeper research on quality service is a necessity. One interesting and challenging aspect in researchin service quality is about measuring service quality. While some methods is proposed for measuring service quality, but every one of them did not offer satisfactory explanation in complex problems of measuring service quality, which is the vagueness and incompleteness in transforming linguistic explanation and scale of one's opinion into numerical scale. One interesting method that incorporate the complexity and vagueness of linguistic explanation and scale into consideration is Qualitometro II method. This method will handle information expressed on linguistic scales without any artificial numeric scalarization and measure and control the quality of service. An interesting study of implementation of Qualitometro II in general medical clinic is conducted to examine the operation and impact of the Qualitometro II method with the assistance of a qualitometro software to ease the complex calculation algorithm. Result of the implementation is presented and evaluated for further study.

Potensi Kebijaksanaan Kontrak Pemeliharaan Mesin dalam Menunjang Keberhasilan Mekanisme Industri Pertanian Hennie Husniah; Udjiana S. Pasaribu; A.H. Halim; B.P. Iskandar
Jurnal Teknik Industri Vol. 18 No. 1 (2016): JUNE 2016
Publisher : Institute of Research and Community Outreach - Petra Christian University

In this paper we discuss a mathematical model of maintenance policy for certain type of agricultural equipments. It is assumed that the equipments are repairable and sold with two-dimensional warranty, i.e. a warranty with two scales of limit, such as the age of the equipment and the usage of the equipment. As an example in the case of automobile, the warranty is cease whenever the age of the automobile reaches 5 years or its mileage reaches 50.000 km, whichever occurs first. The model is intended to provide the best contract-based preventive maintenance (PM) strategy chosen from available options. A method to determine the optimal cost of service contract, both from user and producer view points, is presented. Numerical simulations reveal that the resulting optimal strategy depends on the level of the consumer usage pattern. In this paper we show that the selection of optimal policy is potential in supporting the performance of mechanization in agricultural industry in terms of choosing the best strategy to maintain agricultural equipments effectively (is able to reduce the failure rate of the equipment) with a minimal cost.

KERANGKA KERJA PENILAIAN INVESTASI LINGKUNGAN (ENVIRONMENTAL PERFORMANCE APPRAISAL) Sihar Tigor Benjamin Tambunan
Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri Vol. 9 No. 2 (2007): DECEMBER 2007
Publisher : Institute of Research and Community Outreach - Petra Christian University

Business sustainability can not depend on the business financial performance merely. Poor environmental performance is believed can contribute negative impact on business sustainability in the long run. To face these environmental problems, Environmental Management Accounting (EMA) tools - especially Materials & Energy Flow Accounting (MEFA)- is used to identify opportunities of environmental performance on a production system that will be solved with application of an environmental investment decision. For better decision, investment decision to improve environmental performance is recommended to consider at least three monetary indicators, NPV, profitability, and Payback Periods, and two environmental indicators, Ecological Advantage Ratio (EAR) and Ecological Payback Period (EPP). Abstract in Bahasa Indonesia : Kelangsungan hidup usaha tidak dapat semata-mata bergantung pada kinerja finansial. Kinerja lingkungan yang buruk sebagai dampak keberadaan usaha diyakini dapat memberikan dampak yang buruk pula bagi kelangsungan hidup usaha dalam jangka panjang. Untuk mengatasi masalah lingkungan tersebut, instrumen-instrumen akuntansi manajemen lingkungan (EMA), khususnya diagram alur bahan dan energi (MEFA), digunakan dalam proses pengidentifikasian peluang-peluang perbaikan kinerja lingkungan dalam sebuah sistem produksi yang nantinya akan diselesaikan dengan pembuatan sebuah keputusan investasi lingkungan. Untuk mendapatkan keputusan yang lebih baik, keputusan investasi untuk melakukan perbaikan kinerja lingkungan disarankan setidak-tidaknya memperhatikan tiga indikator moneter yaitu NPV, profitabilitas, dan periode pengembalian (PP) serta dua indikator lingkungan yaitu rasio keuntungan ekologis (EAR) dan periode pengembalian ekologis (EPP). Kata kunci: EMA, MEFA, EIA, EAR, EPP

MODEL MATEMATIS PERSEDIAAN TERINTEGRASI ANTARA SUATU PERUSAHAAN DAN DISTRIBUTORNYA Nyoman Sutapa; Fransiska Fransiska
Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri Vol. 2 No. 1 (2000): JUNE 2000
Publisher : Institute of Research and Community Outreach - Petra Christian University

Two mathematical model of inventories are analised. The aim of these models are minimizing the total cost of inventories on a company and its distributor. The first mathematical model is IDQ (Identical Delivery Quantity) model, i.e. the amount of delivery to distributor is identically for every replenishment. The second one is DWP (Delivery What is Produced) model, i.e. the amount of delivery to distributor is not identically for every replenishmen, all of distributor's inventories are supplied to distributor. Both of these models, handling the coorporation of inventory control between company and one distributor. At the end of this paper, will be showed a numerical example and from it will be analized in which situations one of these models is the best. Abstract in Bahasa Indonesia : Dua buah model matematis persediaan terintegrasi dianalisis. Kedua model bertujuan untuk meminimumkan total biaya persediaan dari sebuah perusahaan dan distributornya yang saling terkoordinasi dan bekerjasama. Model matematis tersebut adalah model IDQ (Identical Delivery Quantity), jumlah pengiriman produk kepada distributor adalah sama pada setiap pengiriman, dan kedua adalah model DWP (Delivery What is Produced), jumlah pengiriman kepada distributor adalah bervariasi pada setiap pengiriman, yaitu semua persediaan yang tersedia pada perusahaan saat itu dikirim ke distributor. Pada bagian akhir dari makalah ini akan ditampilkan sebuah contoh numeris, yang daripadanya akan diperlihatkan dalam keadan bagaimana sebaiknya satu diantara kedua model dipilih. Kata kunci: model matematis, persediaan, terintegrasi.

Pengembangan Model Persediaan Continuous Review dengan All-Unit Discount dan Faktor Kadaluwarsa Cherish Rikardo; Dharma Lesmono; Taufik Limansyah
Jurnal Teknik Industri Vol. 19 No. 1 (2017): JUNE 2017
Publisher : Institute of Research and Community Outreach - Petra Christian University

Paper ini membahas suatu model matematika untuk suatu sistem persediaan dengan mempertimbangkan adanya all-unit discount dan faktor kadaluwarsa. Permintaan barang bersifat deterministik yang merupakan fungsi dari waktu dan bergantung pada jumlah persediaan yang ada (inventory dependent demand), laju kadaluwarsa barang juga bergantung pada waktu dan tidak ada lead time. Model yang dibahas merupakan pengembangan dari Nagare dan Dutta [9] dengan menambah faktor all-unit discount dan laju kadaluwarsa yang bergantung pada waktu. Dari model yang dikembangkan akan ditentukan kuantitas pemesanan (economic order quantity) dan waktu antar pemesanan yang optimum yang meminimumkan total biaya persediaan tahunan. Algoritma penentuan solusi optimum dari model yang dikembangkan dan contoh numerik sebagai ilustrasi dari permasalahan persediaan ini diberikan. Analisis sensitivitas model dengan melihat pengaruh laju kadaluwarsa dan laju permintaan terhadap kuantitas dan waktu antar pemesanan yang optimal juga diberikan. Dari hasil analisis sensitivitas diperoleh bahwa semakin besar laju kadaluwarsa, maka waktu antar pemesanan menjadi semakin singkat dan kuantitas pemesanan menjadi semakin sedikit. Hal yang sama terjadi jika laju permintaan barang semakin besar. Kata kunci: Persediaan, kadaluwarsa, all-unit discount.

THE QUALITY IMPROVEMENT OF PRIMER PACKAGING PROCESS USING SIX SIGMA METHODOLOGY Prima Ditahardiyani; Ratnayani Ratnayani; M. Angwar
Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri Vol. 10 No. 2 (2008): DECEMBER 2008
Publisher : Institute of Research and Community Outreach - Petra Christian University

The implementation of Six Sigma has become a common theme in many organizations. This paper presents the Six Sigma methodology and its implementation in a primer packaging process of Cranberry drink. DMAIC (Define, Measure, Analyze, Improve and Control) approach is used to analyze and to improve the primer packaging process, which have high variability and defects output. After the improvement, the results showed that there was an increasing sigma level. However, it is not significantly and has not achieved the world standard quality, yet. Therefore, the implementation of Six Sigma in primer packaging process of Cranberry drink still has a room for doing a further research.

PENERAPAN EVOLUTIONARY ALGORITHM PADA PENJADWALAN PRODUKSI (Studi Kasus di PT Brother Silver Product Indonesia) I Gede Agus Widyadana; Lala Febriana
Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri Vol. 3 No. 2 (2001): DESEMBER 2001
Publisher : Institute of Research and Community Outreach - Petra Christian University

This research gives an alternative to build production schedule using Evolutionary Algorithm. The objective function is minimizing production makespan. Shortest Processing Time (SPT) and Longest Processing Time (LPT) methods are used as initial solution. The algorithm is implemented on house ware factory and the result show the final solution has makespan 26,74 % less than initial solution. Abstract in Bahasa Indonesia : Penelitian ini memberikan alternatif dalam menyusun suatu jadwal produksi dengan menggunakan Evolutionary Algorithm. Fungsi tujuan yang akan dicapai adalah meminimumkan makespan produksi. Metode Shortest Processing Time (SPT) dan Longest Processing Time (LPT) digunakan sebagai solusi awal. Algoritma ini kemudian diterapkan pada pabrik peralatan rumah tangga dan solusi akhir menunjukan Evolutionary Algorithm memberikan makespan 26.74% lebih kecil dibandingkan dengan solusi awal. Kata kunci: Evolutionary Algorithm, Penjadwalan.

Logistic Performance Measurement on a Port in Aceh Prima Denny Sentia; Regita Ramadani; Sarika Zuhri
Jurnal Teknik Industri Vol. 20 No. 1 (2018): June 2018
Publisher : Institute of Research and Community Outreach - Petra Christian University

Indonesia government has established sea toll program through Presidential Regulation No.17 in 2017 to support inter-island distribution. Port X in Aceh is one of the ports included in sea toll program. This paper discusses logistic performance m.easure, especially in sea transportation. A Logistic Performance Index (LPI) is proposed as a tool to identify challenges and opportunities in Port X performance. Key indicators which affect the value of logistics performance index will also be studied in this paper. There are several logistic performance measurements for port X based on literature study: quality, delivery cost, transportation cost, and information. Eight indicators affect Port X performance: quality of the commodity, the quantity of the commodity, on time delivery, ship call, sea transportation cost, storage cost, electronic availability, and electronic access. Port X average total index, based on Analytical Hierarchy Process, is 2,557. This value can be considered as quite reasonable. The study limits logistic performance for the arrival route of the container vessel leading to Port X. The final result shows that quality performance indicator (quality quantity of commodity index) has the highest index for all originating port. The second highest index is electronic information availability index. Through this finding, Port X must improve their service and information because it plays a vital role in their performance

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