期刊文献+
共找到4篇文章
< 1 >
每页显示 20 50 100
基于工序集的动态关键路径多产品制造调度算法 被引量:33
1
作者 谢志强 杨静 +2 位作者 周勇 张大力 谭光宇 《计算机学报》 EI CSCD 北大核心 2011年第2期406-412,共7页
针对已有的树状结构多产品加工和装配综合调度方法,不能兼顾树状结构纵横双向、影响调度结果的问题,提出基于工序集的动态关键路径多产品制造调度算法.该算法首先采用根对齐的方法,将多个树状结构的产品转化成一个虚拟加工树,使多产品... 针对已有的树状结构多产品加工和装配综合调度方法,不能兼顾树状结构纵横双向、影响调度结果的问题,提出基于工序集的动态关键路径多产品制造调度算法.该算法首先采用根对齐的方法,将多个树状结构的产品转化成一个虚拟加工树,使多产品调度问题简化为单产品调度问题;在调度过程中,根据虚拟加工树动态生成可调度的备选工序集合,按提出的动态关键路径策略和短用时调度策略从备选集中选择工序,并应用首次适应调度法调度工序,直到备选集合为空,即所有产品加工完毕,实现以纵向为主兼顾横向的双向调度优化.实例证明,算法对多产品加工和装配综合调度问题可以获得更优的解. 展开更多
关键词 动态关键路径 虚拟加工树 备选工序集 多产品制造 首次适应调度法
下载PDF
动态生成优先工序集多产品制造过程优化控制 被引量:2
2
作者 谢志强 周勇 +2 位作者 杨光 谭光宇 王凤儒 《电机与控制学报》 EI CSCD 北大核心 2008年第6期734-738,共5页
为简化多产品制造调度,实现多产品制造过程优化控制,将多产品转化成一个虚拟产品,构造一个产品的虚拟加工、装配工艺树。该虚拟工艺树上的叶节点代表最先加工的工序,虚拟根节点代表最后一道工序,边代表偏序关系;以层优先为虚拟工艺树上... 为简化多产品制造调度,实现多产品制造过程优化控制,将多产品转化成一个虚拟产品,构造一个产品的虚拟加工、装配工艺树。该虚拟工艺树上的叶节点代表最先加工的工序,虚拟根节点代表最后一道工序,边代表偏序关系;以层优先为虚拟工艺树上的工序设置优先级。针对调度时产生的抖动问题,可根据虚拟工艺树动态生成一个备选工序集;在具体调度过程中,根据优先级策略并结合短用时、长路径等调度策略从备选集合中调度工序,直到备选集合为空,实现多产品加工、装配调度综合优化。实例验证:算法不仅可以简化多产品制造问题,提高调度效率,而且可以实现纵横双向调度优化控制。 展开更多
关键词 动态 多产品制造 虚拟加工树 备选集 优先级
下载PDF
考虑产品品牌效应的多产品多制造商纳什均衡策略 被引量:6
3
作者 戢守峰 姜力文 +1 位作者 孙琦 喻海飞 《中国管理科学》 CSSCI CSCD 北大核心 2017年第5期97-108,共12页
在多产品多制造商的生产-销售系统中,考虑制造商是否开发APP的渠道选择问题,分析了APP丰富度、产品间的可替代程度及产品的品牌效应对生产-销售系统定价策略的影响,构建了生产-销售系统逆需求模型,得到四种渠道选择与定价策略下的子博... 在多产品多制造商的生产-销售系统中,考虑制造商是否开发APP的渠道选择问题,分析了APP丰富度、产品间的可替代程度及产品的品牌效应对生产-销售系统定价策略的影响,构建了生产-销售系统逆需求模型,得到四种渠道选择与定价策略下的子博弈纳什均衡解。结果表明:产品品牌效应的增加有利于提高生产-销售系统总需求与总利润,产品可替代程度的增加会导致企业低价恶性竞争,降低生产-销售系统总利润,APP丰富度的增加可以为企业带来更多收益,挖掘潜在市场需求,APP的开发使得企业与消费者双赢,并且两个制造商均选择开发APP是帕累托最优策略。 展开更多
关键词 APP丰富度 多产品制造 生产-销售系统 子博弈纳什均衡 伯川德价格竞争
原文传递
Accounting Practice in Agricultural Enterprises in Turkey
4
作者 Esin Yelgen Suleyman Uyar Alanya Alaaddin Keykubat University +1 位作者 Alanya Turkey 《Chinese Business Review》 2017年第7期316-326,共11页
Agricultural sector is vital for human beings, it provides stuffto the other sectors and it contributes to employment considerably. A large proportion of the exportation of Turkey is made from the agricultural product... Agricultural sector is vital for human beings, it provides stuffto the other sectors and it contributes to employment considerably. A large proportion of the exportation of Turkey is made from the agricultural products. Thereby it can be said that the agricultural sector is one of the main sectors contributing to the economy of the country considerably. But it's known that the sector is affected by some risks and uncertainities such as: sector's being made-up of family-owned companies, its being sensitive to the weather conditions, the long process of buying products, the work's being seasonal, self-consumption, the difficulty in accounting the cost, unrecorded agricultural transactions. Within this context to determine the sector's contribution to the country's economy clearly is related to recording the agricultural transactions properly and choosing the realistic methods and implementations. But despite the importance that agricultural transactions carry, the rules of recognition of the related transactions stay at an area that is not much worked on by the operators and researchers till the accounting postulates published. One reason for this is the sector, which is generally made-up of family-owned companies, and the operators have a general view point that accounting is not the purpose of management but taxation. In recent years with the international development of economy and technology, it's seen that big investors have entered the sector. With the changed system of trade, agricultural sector became a strategic sector. In this respect, in-depth data and information, acquired from accounting system, became very important. In this study, the principles and the rules that are applied in the agricultural transactions within the frame of international accounting standards are explained. In which account group should be the biological assets that are agricultured and agricultural products according to their qualities, which accounts are used, and how they are recognitioned are explained. In this context, in the study the examples which are related with the implementation are given over annual plants and prennial plants. The differences between the accounts that are used, are mentioned over by these examples. 展开更多
关键词 agricultural activities accounting standards TMS 41 valuation of biological assets depreciation ofbiological assets TURKEY
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部