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All Journal Jurnal Titra International Journal of Supply Chain Management
Nyoman Sutapa
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Decision Sciences, Operations Research & Management Engineering Environmental Science Industrial & Manufacturing Engineering Transportation

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PENINGKATAN KAPASITAS PRODUKSI MELALUI PENGHITUNGAN WAKTU BAKU, TATA LETAK FASILITAS, SERTA PEMBERIAN KOMPENSASI DI PT SURYA PUTRA BARUTAMA Chandra Wijaya; Nyoman Sutapa
Jurnal Titra Vol 2, No 1 (2014)
Publisher : Jurnal Titra

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Abstract

PT Surya Putra Barutama was not able to meet the market demand i.e. 500 units/month, since their production capacity was only 300 units/month. Therefore, to solve that problem we need to improve that capacity by calculating the standard time, production facility layouting, and calculating a new reward standard. At the end of this project, we found that, now the production capacity is 600 units/month.
Faktor-Faktor Penentu Dalam Berbelanja Secara Online Ronald Alexander Wijaya; Nyoman Sutapa
Jurnal Titra Vol 2, No 1 (2014)
Publisher : Jurnal Titra

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Abstract

The development of the internet technology is currently utilized by user, one of them is an online business. This research is to find the factors which influence the consumers to buy through online shopping. The data is been analyzed with Factor Analysing and Discrimination Test. The results shows that there are four components constructed from Factor Analysis and the most influencing components are attractive web design, full information, ease to shop, and advertising media as a supporting facilites. Discriminant test shows that male at junior high school student and collage/university students more dominant at frequency never (0) and occasionally (1-3 times) in the last month, but at the senior high school female students are dominant at the occasionally frequency. Females shopping frequencies are dominant at medium frequency (4-6 times), but at high school degree both female and male have the same shopping frequency. The result of discriminant test also shows expenditures less than Rp. 100.000 have a medium spending frequency (4-6 times) is relatively small at 3%, expenditures at Rp. 100.000 to less than Rp. 500.000 have occasionally frequency (1-3 times) most dominating by 31%, and expenditures at Rp. 500.000 to less than Rp. 1.000.000 have medium frequency (4-6 times) most dominating by 14%.
PERANCANGAN DOKUMEN MUTU ISO 9001: 2008 DI PT “X” Jessica Jessica; Nyoman Sutapa
Jurnal Titra Vol 3, No 2 (2015)
Publisher : Jurnal Titra

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In this paper, we diagnosis the quality management system of ISO 9001: 2008’s clauses, particulary on PPIC and Production Department. We analyze the differences between the number of clauses which are not yet adopted before and after design the quality dokumen for the implementation of quality management system ISO 9001: 2008. The number of clauses after design the quality document which are not yet adopted decrease, i.e. 0% of quality management system’s clause, 24% of management responsibility’s clause, 3% of product realization’s clause, and 46% of measurement, analysis and improvement’s clause.
Optimal Deteriorating Inventory Models for Varies Supply Life Cycles Gede A Widyadana; Kun Jen Wang; Nyoman Sutapa
International Journal of Supply Chain Management Vol 9, No 3 (2020): International Journal of Supply Chain Management (IJSCM)
Publisher : International Journal of Supply Chain Management

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Abstract

Agriculture items, such as fruits and vegetables, have different supply and demand characteristics during a harvest period. Fruits supply in the first and end of harvest time are not reliable so sometimes supply are not available when needed. Fruits demand is different during harvest season. In the first harvest season, demand depends on price and at the end of harvest time, the demand depends on presentation of the items. In this study, inventory deteriorating items models for the first and the end of the harvest season are developed. Since closed-form solutions cannot be derived from the models, a Genetic Algorithm and a heuristic method are used to solve the problems. A numerical example and sensitivity analysis are conducted to illustrate the model and get insights. The sensitivity analysis shows that the supplier will increase his price when supply is not reliable at the early harvest period.  The results show that the unreliable supply is susceptible to the total cost at the end of the harvest period.
Co-Authors Chandra Wijaya Chandra Wijaya Gede A Widyadana Jessica Jessica Kun Jen Wang Ronald Alexander Wijaya