1) discretely controllable processing times
离散加工时间
1.
Multi-rule single machine scheduling with discretely controllable processing times;
离散加工时间单机多准则下可控排序问题
2) discrete-time
离散时间
1.
The analysis of discrete-time queueing system with batch arrival;
批量到达的离散时间排队系统
2.
On the observability of discrete-time fuzzy-state control systems;
离散时间模糊状态控制系统的可观性分析
3.
A discrete-time warm-fund maintainable system composed of two types of components with priority
有优先权两部件离散时间温贮备可修系统
3) discrete time
离散时间
1.
Dynamic measurable disturbance decoupling for discrete time singular nonlinear systems;
离散时间奇异系统的可测扰动解耦
2.
Analyzes a model of wireless mult services communication system with gated service in discrete time.
在离散时间状态下对Geom(N ,1) /Geom(g) / 1系统 ,采用嵌入马尔可夫链理论和概率母函数的方法进行了分析 ,推导出了系统N个一般级对列和高优先级队列的平均排队队
3.
By taking into consideration the discrete time renewal risk model under constant interest rate,this paper obtained recursive algorithm finite-time non-ruin probability,and infinite-time non-ruin probability and its upper bound.
考虑了常利率离散时间更新风险模型,导出了有限时间不破产概率的递推表达式和最终生存概率的递推表达式,并利用鞅方法得到了最终破产概率的上界估计。
4) discrete processing
离散加工
5) processing time
加工时间
1.
Effects of waste tire rubber powder mesh number and processing time to feature of rubber asphalt
废胎胶粉目数和加工时间对橡胶沥青性能影响
2.
The maximum tardiness in three-machine flowshop problem with separated setup,processing and removal time is discussed,where the setup time and removal time steps of the same job can overlap on three machines,but the processing time can not.
以最小化最大延误为目标函数,讨论了三台机器的流水作业问题,其中每个工件的操作由"调整"步、"加工"步以及"移走"步组成,而工件的调整和移走时间都与加工时间相分离,同一个工件的"调整"步和"移走"步在三台机器上可以重叠,但"加工"步不能重叠,并且第一台机器上没有空闲时间,工件一旦开始加工就不允许中断。
3.
In such a case all the workpieces arrive in batches and each batch has exactly m workpieces to which the processing time required for each one depends on the time the batch containing it just arrives.
工件以批方式到达且每个批中有m个工件,每个工件的加工时间随其批的到达而给定且限定在某个时间区间上。
6) machining time
加工时间
1.
According to the effect of the technological parameter of the surface of abraser waterjet polish part on machining aim,concerning its machining time,target distance,jet pressure,jet rake,abraser grain size,abraser density and flow quantity,related experiments are conducted in this paper by means of orthog-onal experiment.
针对磨料水射流抛光零件表面的工艺参数———加工时间、靶距、射流压力、喷射倾角、磨料粒度、磨料浓度、流量等对加工指标的影响,用正交试验方法,进行有关试验。
2.
Aiming at the disadvantage of the pop NC simulate softwar on the simulation of the machining time, analyzed the add and moderate controlling of the Siemens 840D numerical control system and developed an accurate simulation system of the NC Program’s Machining Time, the precision rate of simulation is up to 90%.
本文简单介绍了飞机结构件数控加工车间的生产特点,指出了程序加工时间仿真精确性在车间生产管理中的重要性。
3.
This paper analyses the machining time error caused by taking the result of programmed feed-in speed (F) multiply interpolation cycle(Ts) as the length of tiny line(ΔL) which is used to approach the arc in the data sampling circular interpolation.
分析了在数据采样法圆弧插补中以程编进给速度F与插补周期Ts的乘积作为微小直线段的长度ΔL来逼近待加工圆弧轮廓所引起的加工时间误差。
补充资料：离散时间周期序列的离散傅里叶级数表示
(1)
式中χ((n))N为一离散时间周期序列，其周期为N点，即
式中r为任意整数。X((k))N为频域周期序列，其周期亦为N点，即X(k)=X(k+lN)，式中l为任意整数。
从式(1)可导出已知X((k))N求χ((n))N的关系
(2)
式(1)和式(2)称为离散傅里叶级数对。
当离散时间周期序列整体向左移位m时,移位后的序列为χ((n+m))N，如果χ((n))N的离散傅里叶级数(DFS)表示为,则χ((n+m))N的DFS表示为
式中χ((n))N为一离散时间周期序列，其周期为N点，即
式中r为任意整数。X((k))N为频域周期序列，其周期亦为N点，即X(k)=X(k+lN)，式中l为任意整数。
从式(1)可导出已知X((k))N求χ((n))N的关系
(2)
式(1)和式(2)称为离散傅里叶级数对。
当离散时间周期序列整体向左移位m时,移位后的序列为χ((n+m))N，如果χ((n))N的离散傅里叶级数(DFS)表示为,则χ((n+m))N的DFS表示为
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条