查询词典 threshold frequency

By exploring the properties of the optimal value function, several simple and realistic sub-optimal policies are presented.These sub-optimal policies are of threshold structure, which are featured only by a number of threshold parameters.

分析了生产两种品种的纸机的最优策略的结构品质，提出了一种简易可行的次优控制策略：阈值控制策略。

Based on the conclusion of experimental law, the photoelectric threshold condition is obtained for the semi-insulating GaAs photoconductive switch under the non-linear mode, pointing it out that, when the optic-energy triggers off the switch to meet the prerequisite that n_0L is greater than or equal to 10~(12)cm~(-2), the necessary condition is achieved for high field domain and meanwhile the threshold electric field serves to produce charge transmission effect within the material.

在总结实验规律的基础上，得到半绝缘GaAs光电导开关非线性模式的光电阈值条件，指出当光能触发使开关满足n0L≥10~(12)cm~(-2)时，达到形成高场畴的必要条件，阈值电场的作用是使材料体内产生电子转移效应。

In this paper,a forward-secure threshold signature scheme based on the Asmuth－Bloom threshold scheme is proposed.Its security is based on the difficulty of solving discrete logarithm in finite field and quadratic residue on some special conditions.

基于Asmuth－Bloom门限方案，设计了一种新的前向安全的门限签名方案，其安全性基于有限域上求解离散对数的困难性和在特定条件下求解二次剩余问题的困难性。

Based on the elliptic curve cryptography and Shamir threshold mechanism, an anti-deception threshold signature scheme is proposed.

基于椭圆曲线密码体制，利用shamir的门限机制，提出了一种可以防欺诈的门限签名方案。

In the study of the stochastic chaos in simple pendulum, the random Melnikov process is derived and the mean-square criterion is used to determine the threshold amplitude of the bounded noise excitation for the onset of the chaos or random chaos in the system. For the coupled simple pendulum and harmonic oscillator, the Melnikov function is used to determine the condition for the onset of chaos in the case of Hamiltonian perturbations. In the case of non-Hamiltonian perturbation, the generalized random Melnikov process and mean-square criterion are used to determine the threshold amplitude of the bounded noise for the onset of random chaos.

在随机混沌研究中，应用随机Melnikov过程的均方准则研究了单摆在有界噪声激励下发生混沌或随机混沌时有界噪声激励的临界幅值；对于耦合的单摆-谐振子系统，先用Melnikov函数研究了在哈密顿扰动下发生混沌的必要条件；然后用推广的随机Melnikov过程方法研究了在非哈密顿扰动下发生随机混沌的必要条件；用最大Lyapunov指数及Poincaré截面方法结果与上述理论结果作了对比。

Because energy distribution of interface trap is very important to study degradation of gate oxide we proposed two methods-- sub-threshold swing shift method and sub-threshold gate voltage shift method based on the relaxation spectral technique.

由于界面陷阱的能量分布在超薄栅氧化层退化研究中非常重要，因此基于弛豫谱技术我们提出了两种新的方法（亚阈摆幅漂移方法和亚阈栅电压漂移方法）来提取界面陷阱的密度及能量分布。

Table 1 The values of threshold bi in permanent monitoring and diagnostics system Threshold

表1的值在长期的监测和诊断系统，双门限阈值

Automatic threshold choice is difficult and important to color images edge detection, First of all, on the base of human visual properties, threshold versus intensity function of human visual system are researched and analyzed, by using method of mathematic modeling and the result of saturation research, function of least color difference that can be perceptible by visual systems in detecting edge is given.

摘要自动阀值选取是彩色图像边缘检测的难点和关键问题，首先从人类的视觉特性出发，分析了人类视觉系统的亮度感知门限函数，利用数学建模方法和色度学方面的研究成果，给出人类视觉系统对彩色图像边缘所能识别的最小彩色差函数。

In this optoelectronic threshold logic design, the weighting process of the conventional threshold gate is innovated.

本文以简单的光电子回路实现了四种模糊逻辑操作，给出了一个多功能的可编程的光电子混合模糊逻辑门的设计。

In addition, several examples showing the realization of three-variable threshold logic function with three-variable universal-threshold-logic-gates are given.

通用阈值逻辑门是一种通用的阈值逻辑门，可以通过改变它的输入、输出的接法实现所有的给定变量数的阈值逻辑函数。

He tendered his resignation to the Prime Minister.

他向首相递了辞呈。不适合

International economy and trade,Nanking 210044

国际经济与贸易，南京 210044