Ditemukan 13 dokumen yang sesuai dengan query
Francis: Taylor and Francis,
658 JIPE
Majalah, Jurnal, Buletin Universitas Indonesia Library
Homa Amirian
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ABSTRACT
This paper addresses a new robust multi objective multi period model for supply chain planning under uncertainty considering quantity discounts. The proposed model maximizes the current proht of the distributor by making a balance between the total costs of the supply chain and the distributor company s revenues of selling products and also maximizes the company s expected profit by introducing brands and taking the risk of loss on it. Considering uncertainty in the purchasing ...
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Philadelphia: Taylor and Francis, 2018
658 JIPE 35:4 (2018)
Artikel Jurnal Universitas Indonesia Library
Andrea L. Arias
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ABSTRACT
Despite having a very broad spectrum of applicability in practice, the multi family capacitated lot sizing problem (M FCLSP) has been scarcely studied. The MFCLSP is an extension of the capacitated Iot sizing problem with setup times (CLST) in which items are organized into families based on similar setup structures. In this paper, we propose three formulations for the MFCLSP (MF TRAD, MF ARBNET, and MF EXREQ), and develop a comprehensive comparative analysis to evaluate ...
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Philadelphia: Taylor and Francis, 2018
658 JIPE 35:4 (2018)
Artikel Jurnal Universitas Indonesia Library
Zhe Zhang
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ABSTRACT
This paper focuses on the robust resource constrained project scheduling problem (RCPSP) with discrete time/resource trade offs, in which activity duration and resource are uncertain variables. Combining flexible RCPSP (FRCPSP) with robustness, a discrete mathematical model is developed and resource leveling problem objective is considered to describe the flexible resource allocation comprehensively. In addition, surrogate measures are also introduced, providing an accurate estimate of the schedule robustness. Priority based heuristic methods and resource assignment heuristic ...
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Philadelphia: Taylor and Francis, 2018
658 JIPE 35:4 (2018)
Artikel Jurnal Universitas Indonesia Library
Diego Castro Fettermann
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ABSTRACT
Interconnection among systems requires the interaction between different technologies, such as radio frequency identifier, sensors, processing in the cloud and cyber physical systems. The use of these technologies entails transforming the way operations management is carried out within companies, with potential for application in several helds of activity. This article aims to identify the contribution of the adoption of Industry 4.0 technologies for companies operation management (OM). Based on a survey with 38 successful cases ...
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Philadelphia: Taylor and Francis, 2018
658 JIPE 35:4 (2018)
Artikel Jurnal Universitas Indonesia Library
Runhui Wang
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ABSTRACT
Count data are often described by the Poisson distribution, which requires identical mean and variance, namely equi dispersion. However, in practical situations, count data usually exhibit either over dispersion with variance larger than mean, or under dispersion with variance smaller than mean. Therefore, traditional approaches that focus on only mean shifts, such as the c chart, cannot monitor count data with over/under dispersion efficiently.To monitor mean and dispersion of count data simultaneously, this paper adopts ...
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Philadelphia: Taylor and Francis, 2018
658 JIPE 35:4 (2018)
Artikel Jurnal Universitas Indonesia Library
Soheyl Khalilpourazari
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ABSTRAK
In order to minimaze total production time in multi-pass milling process, selecting optimal values of the process parameters is of great importance. the parameter optimazation model of multipass milling process is a constrained non-linear programming formulation. due to nonlinearity and complexity of the mathematical model, developing new solution methodologies , which can provide efficient solutions, is essential. for this purpose, in this paper a novel hybrid alogrithm called sine-cosine whale optimazation alogrithm is propoosed for ...
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Francis: Taylor and Francis, 2006
658 JIPE 35:3 (2018)
Artikel Jurnal Universitas Indonesia Library
Fatemeh Gholian-Jouybari
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ABSTRAK
The Fuzzy Fixed Charge Transportation Problem in which both fixed and transportation cost are fuzzy numbers is considered in this paper. Due to NP-hardness of the problem, we utilize three types of Electromagnetism-like Algorithms (EM), Genetic Algorithm (GA), and Simulated Annealing (SA) which are firstly being proposed and comprised in this research area. Besides, our other novelty approach is the use of new encoding mechanism, namely string representation, for the first time which is employed ...
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Francis: Taylor and Francis, 2006
658 JIPE 35:3 (2018)
Artikel Jurnal Universitas Indonesia Library
Pengfei He
Francis: Taylor and Francis, 2006
658 JIPE
Artikel Jurnal Universitas Indonesia Library
Dong-Yuh Yang
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ABSTRAK
This paper considers an M/M/1 queue with second optional service, in which the server is subject to working breakdowns and repairs. All arriving customers require the first essential service, whereas only a portion of them require a second optional service. In case where the server may break down while providing the first (essential) or second (optional) service, the server continues operation at a reduced level rather than ceasing service entirely. The stability condition for this ...
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Francis: Taylor and Francis, 2006
658 JIPE 35:3 (2018)
Artikel Jurnal Universitas Indonesia Library
