Manufacturing Engineering最新文献_第7页

Chance-Constrained Surgery Planning Under Conditions of Limited and Ambiguous Data 有限和模糊数据条件下机会受限的手术计划

IF 0.3 4区工程技术

Manufacturing Engineering Pub Date : 2016-06-29 DOI: 10.2139/ssrn.2432375

Yan Deng, Siqian Shen, B. Denton

{"title":"Chance-Constrained Surgery Planning Under Conditions of Limited and Ambiguous Data","authors":"Yan Deng, Siqian Shen, B. Denton","doi":"10.2139/ssrn.2432375","DOIUrl":"https://doi.org/10.2139/ssrn.2432375","url":null,"abstract":"Surgery planning include decisions of which operating rooms (ORs) to open, allocation of surgeries to ORs, sequence and time to start each surgery. The decisions are often made under uncertain surgery durations with limited data that leads to unknown distributional information; furthermore, cost data for criteria such as overtime and surgery delays are often difficult or impossible to estimate in practice. In this paper, we consider a distributionally robust (DR) formulation that recognizes practical limitations on data availability and obviates the need to provide accurate cost parameters for surgery planning. We minimize the cost of opening ORs for completing a set of surgeries, subject to a joint DR chance constraint on OR overtime. We use statistical $phi$-divergence measures to build an ambiguity set of possible distributions of random surgery durations, and derive a branch-and-cut algorithm for optimizing a mixed-integer linear programming reformulation of the DR chance-constrained model formulated based on a finite sample of scenarios. We compute instances generated from real hospital-based surgery data, demonstrate the computational efficacy of our approach, and provide insights for DR surgery planning.","PeriodicalId":49886,"journal":{"name":"Manufacturing Engineering","volume":"9 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2016-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77465313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 40

Chasing Demand: Learning and Earning in a Changing Environment 追逐需求:在变化的环境中学习和赚钱

IF 0.3 4区工程技术

Manufacturing Engineering Pub Date : 2016-06-08 DOI: 10.2139/ssrn.2389750

N. B. Keskin, A. Zeevi

引用次数: 107

A Study of Effect on the Efficiency in Manufacturing Organizations: The Application of RFID Technology RFID技术对制造组织效率的影响研究

IF 0.3 4区工程技术

Manufacturing Engineering Pub Date : 2016-05-01 DOI: 10.13189/UJIBM.2016.040203

D. Makhija, P. Chugan

引用次数: 1

The S-Curve Effect of Lean Implementation 精益实施的s曲线效应

IF 0.3 4区工程技术

Manufacturing Engineering Pub Date : 2016-01-14 DOI: 10.1111/POMS.12539

Torbjørn H. Netland, K. Ferdows

{"title":"The S-Curve Effect of Lean Implementation","authors":"Torbjørn H. Netland, K. Ferdows","doi":"10.1111/POMS.12539","DOIUrl":"https://doi.org/10.1111/POMS.12539","url":null,"abstract":"There is currently no theory that explains the pattern of change in a plant's performance as it implements a lean program. Does it improve at a declining, increasing, or constant rate, or in some other pattern? We use empirical data from the implementation of the Volvo Group's lean program worldwide to develop a grounded theory to explain this pattern. We find that the pattern roughly follows an S-curve shape: as a plant progresses in its implementation of lean production, its operational performance improves slowly first, then grows rapidly, and finally tapers off. The initial stage can be characterized by “exploration”, during which the plant is essentially discovering and experimenting with lean principles, and the later stages by “exploitation”, during which the plant is realizing their benefits. We derive the grounded theory from quantitative internal company data and find additional qualitative support for it from our visits to 45 Volvo plants on 5 continents and 210 interviews with employees in these plants and Volvo headquarters. The S-shape pattern has important implications. Practitioners must assess a plant's maturity in lean implementation and adjust their targets, action plans, and expectations accordingly. Scholars must take the position of the plant on the S-curve into consideration when they analyze the impact of lean programs.","PeriodicalId":49886,"journal":{"name":"Manufacturing Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2016-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87398452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 81

Engineering Design Methodology for Green-Field Supply Chain Architectures Taxonomic Scheme 绿地供应链体系结构分类方案的工程设计方法

IF 0.3 4区工程技术

Manufacturing Engineering Pub Date : 2015-12-12 DOI: 10.12660/JOSCMV8N2P52-66

P. Radanliev

{"title":"Engineering Design Methodology for Green-Field Supply Chain Architectures Taxonomic Scheme","authors":"P. Radanliev","doi":"10.12660/JOSCMV8N2P52-66","DOIUrl":"https://doi.org/10.12660/JOSCMV8N2P52-66","url":null,"abstract":"Supply chain engineering requires a design that possesses the flexibility of a complex adaptive system, consisting of interlinking architecture, with external dimensions and system germane internal elements. The aim of this paper is to critically analyse the key supply chain concepts and approaches, to assess the fit between the research literature and the practical issues of supply chain architecture, design and engineering. The objective is to develop a methodology for strategy engineering, which could be used by practitioners when integrating supply chain architecture and design. Taxonomic scheme is applied to consider criteria for strategy architecture, hierarchical strategy integration design, strategy engineering, and integration of supply chain as a conceptual system. The results from this paper derived with the findings that the relationship between supply chain architecture, design and engineering is weak, and challenges remain in the process of adapting and aligning operations. This paper derived with a novel approach for addressing these obstacles, through a conceptual framework diagram and a new methodology, based on the taxonomic scheme. The novelty that derives from this paper is an engineering design methodology for integrating supply chain architecture and design, with criteria that enable decomposing and building a green-field (new and non-existent) supply chain as a system. The taxonomic scheme revealed a number of tools and mechanism, which enabled the development of a new methodology for engineering integrated architecture and design. The review derived with improvements to current and existing theories for analysing interdependencies within and between their individual contexts. This issue is addressed with a hierarchical method for network design, applied for building and combining the integration criteria. The resulting methodology is field tested through a case study with the slate mining industry in North Wales. DOI:10.12660/joscmv8n2p52-66 URL: http://dx.doi.org/10.12660/joscmv8n2p52-66","PeriodicalId":49886,"journal":{"name":"Manufacturing Engineering","volume":"84 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2015-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81593201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 15

Supplier Competition and Cost Improvement 供应商竞争与成本改善

IF 0.3 4区工程技术

Manufacturing Engineering Pub Date : 2015-12-12 DOI: 10.2139/ssrn.2710343

Cuihong Li, Zhixi Wan

引用次数: 41

The Moderating Role of Advance Manufacturing Technology (AMT) on the Relationship between LARG-Supply Chain and Supply Chain Performance 先进制造技术在大型供应链与供应链绩效关系中的调节作用

IF 0.3 4区工程技术

Manufacturing Engineering Pub Date : 2015-11-23 DOI: 10.5539/ASS.V11N28P37

R. Esmaeel, Inda Sukati, Noriza Mohd Jamal

引用次数: 4

The Effects of Probabilistic Innovations on Schumpeterian Economic Growth in a Creative Region 创新区概率创新对熊彼特经济增长的影响

IF 0.3 4区工程技术

Manufacturing Engineering Pub Date : 2015-11-23 DOI: 10.2139/ssrn.2694769

A. Batabyal, H. Beladi

引用次数: 13

Interior-Point Based Online Stochastic Bin Packing 基于内点的在线随机装箱

IF 0.3 4区工程技术

Manufacturing Engineering Pub Date : 2015-10-14 DOI: 10.2139/ssrn.2673951

Varun Gupta, A. Radovanovic

{"title":"Interior-Point Based Online Stochastic Bin Packing","authors":"Varun Gupta, A. Radovanovic","doi":"10.2139/ssrn.2673951","DOIUrl":"https://doi.org/10.2139/ssrn.2673951","url":null,"abstract":"Bin packing is an algorithmic problem that arises in diverse applications such as remnant inventory systems, shipping logistics, and appointment scheduling. In its simplest variant, a sequence of T items (e.g., orders for raw material, packages for delivery) is revealed one at a time, and each item must be packed on arrival in an available bin (e.g., remnant pieces of raw material in inventory, shipping containers). The sizes of items are i.i.d. samples from an unknown distributions, but the sizes are known when the items arrive. The goal is to minimize the number of nonempty bins (equivalently waste, defined to be the total unused space in nonempty bins). This problem has been extensively studied in the Operations Research and Theoretical Computer Science communities, yet all existing heuristics either rely on learning the distribution or exhibit o(T) additive suboptimality compared to the optimal offline algorithm only for certain classes of distributions (those with sublinear optimal expected waste). In this paper, we propose a family of algorithms which are the first truly distribution-oblivious algorithms for stochastic bin packing, and achieve O(√T) additive suboptimality for all item size distributions. Our algorithms are inspired by approximate interior-point algorithms for convex optimization. In addition to regret guarantees for i.i.d. sequences, we also prove a family of novel regret bounds for general noni.i.d. input sequences, including guarantees for locally adversarially perturbed i.i.d. sequences. To the best of our knowledge these are the first such results for non-i.i.d. and non-random-permutation input sequences for online stochastic packing.","PeriodicalId":49886,"journal":{"name":"Manufacturing Engineering","volume":"159 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2015-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73293758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Supply Networks for Relational Sourcing 关系采购的供应网络

IF 0.3 4区工程技术

Manufacturing Engineering Pub Date : 2015-10-12 DOI: 10.2139/ssrn.2375663

E. Belavina

{"title":"Supply Networks for Relational Sourcing","authors":"E. Belavina","doi":"10.2139/ssrn.2375663","DOIUrl":"https://doi.org/10.2139/ssrn.2375663","url":null,"abstract":"Making long-term commitments to exclusive suppliers, or relational sourcing, is critical in industries where quality includes social, ethical, and technical elements concerning which contractual terms would be costly to verify or enforce. This study identifies supplier network topologies that best facilitate such relational sourcing. We consider a brand-owning firm that sources in an ongoing fashion from a general multi-tier network of idiosyncratic suppliers. Alternate network designs are compared in terms of three defining structural properties: network scope, the number of suppliers at each tier in the network; degree of control/delegation, the number of tiers in the network; and network connectivity, the connections between firms located at different tiers. Our analysis reveals that neither network connectivity nor the distribution of costs among suppliers affects the ability to sustain relational sourcing. Networks characterized by more delegation or less scope have the most to gain from relational sourcing, but they are also most vulnerable to exploitation of a relational agreement. We characterize this trade-off and identify preferred network topologies. Our analysis shows that, all else equal, delegation is better than control for products with higher margins, greater sourcing stability, or lower costs of noncompliant quality. Numerical analysis reveals that low-scope networks, too, are preferable for higher-margin products with greater sourcing stability; however, low-scope networks are preferred at higher costs of noncompliant quality. These results are robust to alternate information environments, supplier replaceability and equilibrium concepts.","PeriodicalId":49886,"journal":{"name":"Manufacturing Engineering","volume":"35 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2015-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89921204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 12