Jian Zhang

Jian Zhang
The University of Calgary | HBI · Haskayne School of Business

PhD

About

15
Publications
6,408
Reads
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147
Citations
Citations since 2017
3 Research Items
87 Citations
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2017201820192020202120222023051015
2017201820192020202120222023051015
2017201820192020202120222023051015

Publications

Publications (15)
Article
A Benders decomposition-based method is developed to simultaneously optimize upstream and downstream operations of a mineral value chain. In each iteration of the proposed method, the mineral value chain optimization model is decomposed to a master problem that only includes the variables that determine the upstream mine production schedule, and a...
Chapter
A two-stage stochastic mixed integer non-linear program is formulated for a mining complex to optimize strategic and tactical plans. The objective is to find the near optimal decisions for a mineral supply chain in the context with uncertainties in both ore supply and the commodity market (price and demand). The endogenous spot price in the commodi...
Article
When a new forward contract is signed between a mining company and a customer to hedge the risk incurred by the uncertainty in commodity market, the mining company needs to re-optimize the plans of the entire value chain to account for the change of risk level. A two-stage stochastic mixed integer nonlinear program is formulated to optimize a miner...
Article
Abstract A decomposition method is developed to optimize a mineral value chain composed of multiple mines and a material flow circuit. In the proposed decomposition method, the upstream mine production schedule and the downstream material flow plan are optimized simultaneously to maximize the expected NPV of the entire mineral value chain. The prop...
Article
In this work we study a one-machine scheduling problem which is featured by: (a) the release date of each job is compressible and stochastic, (b) each job has to be delivered before its due date (deadline) and (c) the manufacturer can expedite the production through overtime at an extra cost. The objective function of the scheduling problem is to m...
Article
This paper studies the setting in which a one-of-a-kind production (OKP) firm offers two types of orders (due-date guaranteed and due-date unguaranteed) at different prices to the sequentially arriving customers, who are also OKP production firms. The prices for two types of orders are quoted to each customer on its arrival. We study two problems i...
Article
This paper studies a problem in which a Make-To-Order (MTO) firm makes price quotation to each customer on its arrival. The price is decided based on the firm’s knowledge of its target market, i.e., the distributions of customer’s willingness to pay, impatience factor, etc. We propose a dynamic pricing strategy to find the optimal price as well as...
Article
Full-text available
This paper addresses a dynamic capacitated production planning problem in steel enterprise employing a closed-loop supply chain strategy, in which the remanufacturing process is applied. Particularly, the remanufacturing problem considered in this paper is obviously different from the typical lot-sizing problems, within which all demands are met by...
Conference Paper
This paper addresses a dynamic Capacitated Production Planning (CPP) problem in steel enterprise employing a closed-loop supply chain strategy, in which a remanufacturing process is adopted. We develop a model in which all demands are met by production or remanufacturing without backlogs, under the context that both the production and remanufacturi...
Article
Full-text available
This paper addresses a dynamic capacitated production planning (CPP) problem with consideration of outsourcing. Specifically, the outsourcing problem considered in this paper has the following features: (1) all demands are met by production or outsourcing without postponement or backlog, (2) production, inventory, and outsourcing levels all have a...
Conference Paper
This paper addresses a capacitated production planning (CPP) problem with outsourcing. Specially, the outsourcing problem considered in this paper has the following features: (1) all demands are met by production, inventory, outsourcing, and sale loss without postponement or backlog; (2) The goal of the solution to this problem is to minimize the t...

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