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Engineering Costs and Production Economics最新文献

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Analysis of the logistic system of steel products in Poland 波兰钢铁产品物流系统分析
Engineering Costs and Production Economics Pub Date : 1990-05-01 DOI: 10.1016/0167-188X(90)90024-C
Danuta Kisperska-Moroń
{"title":"Analysis of the logistic system of steel products in Poland","authors":"Danuta Kisperska-Moroń","doi":"10.1016/0167-188X(90)90024-C","DOIUrl":"10.1016/0167-188X(90)90024-C","url":null,"abstract":"<div><p>In Poland, steel products have often been in shortage while the average level of their stocks at consumers stores was rising. The logistic system of steel products was controlled almost totally by the central economic management through “obligatory intermediation” in their distribution. That hidden form of rationing proved to be inefficient and failures of the distribution system were multiplied by faulty performance of the transport system. The whole process of orders location was becoming more and more complicated. Buyers of steel products were not satisfied by the operation of intermediating companies. Hence direct purchases from producers were always preferred rather than other forms of procurement. Together with the complex reform of the whole Polish economy also the logistic system of steel products has undergone essential changes. However, their results are not known yet.</p></div>","PeriodicalId":100476,"journal":{"name":"Engineering Costs and Production Economics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1990-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0167-188X(90)90024-C","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83754301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
A case study in cyclic assembly planning and dynamic coordinated component shops' loading in a locks manufacturing plant 某锁具制造厂循环装配规划与动态协调装配实例研究
Engineering Costs and Production Economics Pub Date : 1990-05-01 DOI: 10.1016/0167-188X(90)90033-E
P.G. Awate
{"title":"A case study in cyclic assembly planning and dynamic coordinated component shops' loading in a locks manufacturing plant","authors":"P.G. Awate","doi":"10.1016/0167-188X(90)90033-E","DOIUrl":"10.1016/0167-188X(90)90033-E","url":null,"abstract":"<div><p>This case study arose in a large plant manufacturing locks. The existing production control system involved partially a rudimentary MRP at the assembly level and a pull-system of an informal (r,Q) type for triggering component production. The expressed problem was: component shortages affecting assembly operations and load fluctuations as well as imbalances affecting component shops.</p><p>Coordination between assembly shop loading and component shops' loading was identified as crucial. The plant happened to have a considerable flexibility in production smoothing. A cyclic assembly planning system was considered, with minor variations from month to month. A policy for monthly joint planning of assembly and component shops' production was obtained. Consideration was given to presence of lead times for component production. For load balancing over time certain bin-packing heuristics were considered. For sequencing in assembly lines certain flow-shop heuristics were used. The component inventory control policy involved a restoration of month-end inventories towards steady state target values. The operational feasibility of the policy was verified on actual data.</p><p>The study includes approximate quantification of losses that would be caused in the original system due to component stockouts. Certain subproblems concerning component lotsizing under random tool failures were also settled adequately.</p></div>","PeriodicalId":100476,"journal":{"name":"Engineering Costs and Production Economics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1990-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0167-188X(90)90033-E","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85805909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Credit, imports and inventories in cpes causality test for the hungarian economy 信贷、进口和库存对匈牙利经济的因果关系检验
Engineering Costs and Production Economics Pub Date : 1990-05-01 DOI: 10.1016/0167-188X(90)90019-E
I. Abel, I. Székely
{"title":"Credit, imports and inventories in cpes causality test for the hungarian economy","authors":"I. Abel,&nbsp;I. Székely","doi":"10.1016/0167-188X(90)90019-E","DOIUrl":"10.1016/0167-188X(90)90019-E","url":null,"abstract":"<div><p>Granger causality tests are used to detect the relationships between investment and working capital credit, imports in convertible and non-convertible areas, and input and output inventory investments.</p></div>","PeriodicalId":100476,"journal":{"name":"Engineering Costs and Production Economics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1990-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0167-188X(90)90019-E","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87173735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Forecast horizon in a convex cost inventory model with spoilage 考虑损耗的凸成本库存模型的预测范围
Engineering Costs and Production Economics Pub Date : 1990-05-01 DOI: 10.1016/0167-188X(90)90066-Q
Ryszarda Rempała
{"title":"Forecast horizon in a convex cost inventory model with spoilage","authors":"Ryszarda Rempała","doi":"10.1016/0167-188X(90)90066-Q","DOIUrl":"10.1016/0167-188X(90)90066-Q","url":null,"abstract":"<div><p>In this paper an inventory model with convex, non-decreasing costs, exogenous demand and spoilage is considered. The explicit forecast and decision horizons are obtained. The horizon problem is formulated as an optimal control problem. The essential ingredient in the proof is a version of the Pontryagin maximum principle.</p></div>","PeriodicalId":100476,"journal":{"name":"Engineering Costs and Production Economics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1990-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0167-188X(90)90066-Q","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83163118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
On the choice of batch mode in order to maximize throughput 对批量模式的选择，以最大限度地提高吞吐量
Engineering Costs and Production Economics Pub Date : 1990-05-01 DOI: 10.1016/0167-188X(90)90048-M
P.J. Weeda
{"title":"On the choice of batch mode in order to maximize throughput","authors":"P.J. Weeda","doi":"10.1016/0167-188X(90)90048-M","DOIUrl":"10.1016/0167-188X(90)90048-M","url":null,"abstract":"<div><p>An analysis of serial process configurations consisting of three processes and two machines shows interesting relations between the choice of batch mode (or batch structure), utilization of capacities and maximum throughput.</p></div>","PeriodicalId":100476,"journal":{"name":"Engineering Costs and Production Economics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1990-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0167-188X(90)90048-M","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82587149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Equilibrium and adjustments in noncompetitive markets: Lost sales versus backlogging processes 非竞争市场中的平衡与调整:销售损失与积压过程
Engineering Costs and Production Economics Pub Date : 1990-05-01 DOI: 10.1016/0167-188X(90)90030-L
Edward Zabel
{"title":"Equilibrium and adjustments in noncompetitive markets: Lost sales versus backlogging processes","authors":"Edward Zabel","doi":"10.1016/0167-188X(90)90030-L","DOIUrl":"10.1016/0167-188X(90)90030-L","url":null,"abstract":"<div><p>This paper considers trading processes in which, periodically, price and output decisions are made before the realization of a random demand. A major achievement is to extend the scope of outcomes for the lost sales trading processes by demonstrating that the class of PF<sub>2</sub> density functions preserves uniqueness and regularity of behavior without imposing any linearity requirements. A second achievement is to verify that the backlogging full payment process and the lost sales process share common qualitative features with the major difference arising in the properties of the system equilibria.</p></div>","PeriodicalId":100476,"journal":{"name":"Engineering Costs and Production Economics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1990-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0167-188X(90)90030-L","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79629380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Title index 书名索引
Engineering Costs and Production Economics Pub Date : 1990-05-01 DOI: 10.1016/0167-188X(90)90072-P
{"title":"Title index","authors":"","doi":"10.1016/0167-188X(90)90072-P","DOIUrl":"https://doi.org/10.1016/0167-188X(90)90072-P","url":null,"abstract":"","PeriodicalId":100476,"journal":{"name":"Engineering Costs and Production Economics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1990-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0167-188X(90)90072-P","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136598552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An eclectic algorithm for inventory replenishment for items with increasing linear trend in demand 需求呈线性增长趋势的物品库存补充的折衷算法
Engineering Costs and Production Economics Pub Date : 1990-05-01 DOI: 10.1016/0167-188X(90)90050-R
Mostepha Amrani, Graham K. Rand
{"title":"An eclectic algorithm for inventory replenishment for items with increasing linear trend in demand","authors":"Mostepha Amrani,&nbsp;Graham K. Rand","doi":"10.1016/0167-188X(90)90050-R","DOIUrl":"10.1016/0167-188X(90)90050-R","url":null,"abstract":"<div><p>In recent years a small number of researchers have presented methods for the determination of the replenishment policy for a product whose demand is increasing linearly. Some of these methods have the same structure, and differ only by a single parameter in an equation. These will be compared on a range of problems, and an eclectic method suggested as a possible alternative.</p></div>","PeriodicalId":100476,"journal":{"name":"Engineering Costs and Production Economics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1990-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0167-188X(90)90050-R","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84853788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 26
Spare parts inventory planning for a redundant system subject to a phased mission 分阶段任务下冗余系统的备件库存规划
Engineering Costs and Production Economics Pub Date : 1990-05-01 DOI: 10.1016/0167-188X(90)90069-T
M. Vujos̆ević, R. Petrović, A. S̆enborn
{"title":"Spare parts inventory planning for a redundant system subject to a phased mission","authors":"M. Vujos̆ević,&nbsp;R. Petrović,&nbsp;A. S̆enborn","doi":"10.1016/0167-188X(90)90069-T","DOIUrl":"10.1016/0167-188X(90)90069-T","url":null,"abstract":"<div><p>The problem considered is a priori planning of spare parts inventory intended to keep operable a redundant system consisting of n identical and statistically independent elements. The system is subject to a certain mission proceeding in a number of successive time periods, called phases, during which environmental conditions and, thus, element reliabilities vary. Maintenance actions, intended to determine the system state and replace failed elements by new ones, may be performed only during overhauls between two successive phases. Spares inventories for replacement purposes are planned in advance for each overhaul assuming that spare parts remaining unused from previous overhauls can be used in succeeding ones. The mathematical model of the described system is developed in the paper and expressions for calculating relevant performances are derived. An optimization problem is stated in which the total purchase and holding costs are the criterion function and the stockout probabilities represent constraints.</p></div>","PeriodicalId":100476,"journal":{"name":"Engineering Costs and Production Economics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1990-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0167-188X(90)90069-T","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88512090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Implications of the EOQ assumptions on the valuation of the average investment EOQ假设对平均投资估值的影响
Engineering Costs and Production Economics Pub Date : 1990-05-01 DOI: 10.1016/0167-188X(90)90032-D
F.J. Arcelus, G. Srinivasan
{"title":"Implications of the EOQ assumptions on the valuation of the average investment","authors":"F.J. Arcelus,&nbsp;G. Srinivasan","doi":"10.1016/0167-188X(90)90032-D","DOIUrl":"10.1016/0167-188X(90)90032-D","url":null,"abstract":"<div><p>This paper identifies and analyses the effect of two implicit assumptions made in the standard single-period deterministic inventory models, while valuing the level and carrying cost of average inventory. Relaxing these two assumptions we show the degree to which standard inventory models overestimate or underestimate, as the case may be, optimal inventory policies. A numerical example will be used throughout to highlight the results.</p></div>","PeriodicalId":100476,"journal":{"name":"Engineering Costs and Production Economics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1990-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0167-188X(90)90032-D","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86084256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
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