This paper firstly consider the Bertino’s work which introduce periodic time and temporal dependencies in DAC model, and then presents a permission delegation model PDACDM to support temporary constraints, temporal dependencies constraints and propagation constraints.
参考Bertino等人的工作,基于他们提出的加入了周期时间和时序依赖的自主访问控制模型,给出了一个支持临时性限制、时序依赖性限制和传播性限制的权限委托模型PDACDM。
A weighted role for activating task and periodic time authorization is an unsolved major problem for the access control of a workflow management system (WfMS).
带权角色激活任务和周期时间授权是工作流系统访问控制研究尚未解决的核心问题。
The traditional RBAC model cannot express time secure access control constraint,so proposed a new RBAC model with time character,in which defined a new concept of authorization based on periodic time.
针对传统的RBAC模型不能表达时间特性安全访问控制约束的缺点,提出了一个带有周期时间特性的安全访问控制模型。
The result is that the cycle time goes up andthe number of the work-in-process/WIP rockets up.
在晶圆制造厂中,有时为了提高设备利用率而盲目地增加投料/产出速率,造成生产周期时间增长,在制品增多。
For nonautonomous and nonlinear DEDS with a state feedback, by introducing the maximum mergable subset of a strongly connected system, we define the partial merging assignment of cycle times and the stabilization, give a necessary and sufficient condition for the assignment and a sufficient condition for the stabilization.
对于具有状态反馈的非自治非线性DEDS,通过引入强连通系的最大能并子集,定义了周期时间部分合并配置和能稳性,给出了周期时间部分合并配置的一个充要条件以及能稳性的一个充分条件,前者推广了已有结果。
Area problems of cycle time independent assignment of min-max systems using a state feedback is considered, and constitution ways of confirming the most important sub domains of systems assigned region is obtained, and an example is given.
考虑极小极大系统的周期时间能用状态反馈独立配置的区域问题 ,得到了确定系统配置域最重要子域的构造方法 ,并给出了一个例子 。
The existence of a positive time periodic solution for a time periodic boundary value problem is proven, and the asymptotic behavior of solutions to an initial boundary value problem are given respectively.
证明了具周期系数的边值问题正时间周期解的存在性以及对应初边值问题解的渐近性 。
The time periodic solution problem of damped generalized coupled nonlinear wave equations with periodic boundary condition was studied.
研究了一类广义耦合的非线性波动方程组关于时间周期解的问题· 首先利用Galerkin方法构造近似时间周期解序列,然后利用先验估计和Laray＿Schauder不动点原理,证明近似时间周期解序列的收敛性,从而得到该问题时间周期解的存在性·
The time periodic solution problem of a coupled KdV and nonlinear Schrdinger equations was studied.
本文研究了一类KdV非线性Schrdinger组合微分方程组时间周期解的问题,首先利用Galerkin方法构造近似时间周期解序列,然后利用先验估计和Leray-Schauder不动点原理,证明近似时间周期解序列的收敛性,从而得到该问题时间周期解的存在性。
Cooling time dominates cycle time in thick-wall moulding like preform moulding.
属厚壁注塑的瓶坯，冷却时间支配着周期时间。
A Study on the Supply Chain Cycle Time Characters Based on Time Competition
基于时间竞争的供应链周期时间结构特征研究
computing interva
计算周期, 计算时间间隔
picture transmission period
图象传送时间[周期]
time constant of the aperiodic component
非周期分量的时间常数
These Weekly Tables cover periods of7 days or1 calendar week.
这种周表以7天，即一日历周时间为一周期。
Periodicity Detection Method of Periodic Pattern Mining in Time Series
时间序列周期模式挖掘的周期检测方法
clean-up period
(机器)清洗周期(两次清洗的间隔时间)
total-mixing cycle
总混炼周期(包括装料排胶时间)
Concurrent means "over the same time period."
并发的意思是在相同的时间周期内。
Zep Tepi- the return of ancient knowledge at the end of this Cycle of Time.
在这时间周期结束重现的远古知识。
Green/cycle ratio G/C
绿灯时间与号志周期之比值
It took us a week to prepare for the mid-term examination.
我们花了一周的时间准备期中考试。
Specifies the time periods and days of week during which user is allowed to connect.
指定每周允许用户连接的时间和日期。
This negative pressure phase is of short duration.
负压周期的延续时间很短。
Aperiodicity in the Elementary Cellular Automaton;
初等元胞自动机时间序列的非周期性
Permanence and Periodic Solutions of the Discrete Population Models;
离散时间种群模型的持久性及周期解
Existence and Stability of Time-periodic Solutions for a Predator-prey System with Functional Reaction;
一类捕食者-食饵系统的时间周期解