查询词典 optimization of scheduling

It brings new requirements to production planning and scheduling. How to realize the cooperation of production planning and scheduling between multiple plants, how to implement the coordination of production and transportation, and how to tackle with uncertainty and recover the feasibility of schedules against unexcepted events.

随着企业的发展与扩张，分布式多工厂组织模式越来越多，并对生产计划与调度提出了新的任务：如何实现多个分布式工厂之间生产计划与调度的协作；如何实现生产过程与运输过程的协作；如何处理工厂内外可能出现的不确定性和各种异常扰动，并敏捷、动态地恢复计划与调度的可行性。

This article enunciates preventive maintenance based on the state of key equipments in manufacturing execution system and management of workshop planning and scheduling. A comprehensive mathematical model between multi-key-equipments preventive maintenance and management of workshop planning and scheduling is offered.

1引言制造企业中关键设备是指发生故障时对整个生产系统影响较大的设备，特别是自动化流水生产线和联动设备；必须确保安全性能的设备，如动能设备；价格昂贵的精密、大型，重型、稀有设备；故障停机修理费用及停机损失大的设备等。

Aiming at the irrationalities of static task scheduling in collaborative product development and design, a dynamic optimized scheduling method based on the least finish time is proposed.

摘要针对协同产品开发中设计任务静态排序的不合理性，提出了一种基于最小化完工时间的任务优化动态排序方法。

This paper firstly introduces the methods and developments about workshop scheduling inside and outside country; secondly expatiates the basic conception and principle about genetic algorithm; then analyses the flow shop and job shop scheduling problem, also predigests the mathematic depiction so as to convenience further program design.

其次对所研究的流水车间调度和作业车间调度进行了详细的数学分析，并对数学描述进行了简化，为下一步算法设计建立数学模型。

Through scheduling process analysis of periodic task, the waiting limit formula of each task in ready queue was obtained while guarantees its deadline. In addition, some properties, such as final preempting time was deduced and the necessary condition of periodic tasks preempting behavior was described quantitatively. Based on them, a micro scheduling preemption model for periodic tasks in ready queue was put forward, which decreased the number of preemptions and optimized system performance through changing the preempting sequences.

通过分析周期性任务的调度过程，得出在确保任务不错过截止期条件下，各个任务在就绪队列中可等待的最长期限计算公式，并根据公式推导出任务满足截止期的最后抢占时刻等属性，从而定量地刻画了周期性任务抢占行为发生的必要条件，提出了一套对周期性任务的就绪队列进行微调度的抢占模型，通过改变抢占关系来减少抢占次数、优化实时系统性能。

Rotation Scheduling with Variable Repartitioning is an effective but not efficient enough scheduling method on this architecture, and we think its main drawback is the unfavorable variable partition mechanism.

目前的RSVR 排程法效能不错但在效率上仍有改善空间，主要原因我们认为是其使用的变数分割机制不佳；因此我们定义新的变数分割机制并设计对应的指令排程法，针对RSVR 的不足之处来做改善。

In this paper, the Equilibrium-Moderation Method for design task scheduling is put forward, the scheduling strategy of EMM is discussed, the algorithm of EMM is developed, the practice example is given.

该文提出了设计任务调度的&均衡-适度&法，分析了其调度策略，研究了其算法实现，最后给出了应用实例。

Through the definition of behavioral synthesis meaning of AFTER clauses, the enhanced ASAP and ALAP algorithm under AFTER clause delay time constraints is presented. The scheduling model under AFTER clause delay time constraints is also presented. The scheduling model is resolved by ILP.

通过对其行为综合语义的定义，给出了在AFTER子句时延约束下的ASAP和ALAP算法，建立了AFTER子句时延约束下的调度模型，并采用整数线性规划法求解调度模型。

Chapter IV, the overall structure of the function, detailed the function of the system on the structure, scheduling and traffic management, freight management, scheduling command management, statistics and statements management module.

第四章系统的总体功能结构部分，介绍了系统的功能结构，并对行车调度管理，货运管理，调度指挥管理，统计及报表管理等功能模块做了详细的阐述。

Enlightened by compensation model of wireless QoS scheduling algorithms and ideas that weights can be modified during scheduling, compensation model of CFQ can be implemented by deflating and magnifying wights with certain proportions.

与WFQ等不同的是，CFQ算法的的虚拟时间标签由于业务流的权值动态改变而将产生相应的缩放变化，当分组离开队列，需要立即更新业务流的HOL分组虚拟时间戳并重新排序以选择下一个调度的分组。

I hope that this success is just the first in a long series.

我希望这只是成功的开始。

Three dimensional stresses on the interface of tire and soil, tire deflection and soil sinkage are measured.

测试轮胎——沙土界面上的三向应力、轮胎变形和沙土沉陷；建立考虑剪切应力对沙土承载特性产生影响的车轮牵引性能预测模型；分析车轮作用下土壤的纵向稳定性。