1) Non-Dynamic Stochastic Resonance
非动态随机共振
1.
Study on Non-Dynamic Stochastic Resonance Model for Optimum Signal Detection;
非动态随机共振最佳信号检测模型的研究
2) aperiodic stochastic resonance
非周期随机共振
1.
, aperiodic stochastic resonance (ASR).
结果表明 ,一定量的噪声有助于信息传输 ,即非周期随机共振 。
2.
The physical mechanism of signal processing based on the aperiodic stochastic resonance(ASR) system is analyzed,and a statistical approach for recovering the binary signal is proposed.
分析了利用非周期随机共振进行基带信号检测的物理机制,提出了一种基于统计的信号恢复新方法。
3.
By utilizing means of mutual information rate and theory of stochastic resonance detection,in order to simulate ability of organism in signal detection,aperiodic stochastic resonance in single Hodgkin-Huxley neure is studied.
实验结果表明,Hodgkin-Huxley单神经元不但阈值下存在非周期随机共振现象,在某些特定的条件下,阈值上也同样存在看非周期随机共振现象。
3) aperiodic stochastic resonance (ASR)
非周期随机共振
1.
The behavior of such kind of systems is called aperiodic stochastic resonance (ASR).
本文采用互相关方法研究了噪声和随机二进制信号同时激励双稳系统(施密特触发器和双势阱系统)时的输出响应,观察到非周期随机共振;利用双稳系统中的非周期随机共振效应,可以减小随机信号传输中的噪声水平,改善输出信号质量,这在数字通信领域具有十分重要的意义。
4) non-stationary random vibration
非平稳随机振动
1.
An efficient and accurate non-stationary random vibration algorithm for the com posite laminated structures attached with viscoelastic damping layer is proposed .
提出了对敷设黏弹性阻尼层的复合材料层合结构非平稳随机振动分析的高效精确算法。
2.
Predicting the time-varying auto-spectral density of a spacecraft in high-altitude orbits requires an accurate model for the non-stationary random vibration signals with densely spaced modal frequency.
针对高轨航天器非平稳随机振动信号模态频率密集,传统时变信号处理方法难以准确计算时变功率谱密度,从而影响地面对航天器操作决策的特点,提出了基于经验模式分解(EMD)的时变自回归(TVAR)多分量过程神经元网络(PNN)模型。
3.
A new method for a vertical non-stationary random vibration analysis of vehicle-bridge systems subjected to track irregularity excitations is proposed.
提出了考虑轨道高低不平顺时进行车桥耦合系统垂向非平稳随机振动分析的新方法。
5) nonstationary random vibration
非平稳随机振动
1.
Solution of Nonstationary Random Vibration of Linear Vehicle Systems with Variable Driving Speed by Mode Method;
线性车辆系统变速行驶时非平稳随机振动的模态解法
2.
Nonstationary random vibration of vehicle systems with uniform variable speed is discussed in this paper.
对车辆系统变速行驶所引起的非平稳随机振动进行了研究。
6) nonlinear random vibration
非线性随机振动
1.
o counter the insufficiency, which the minimization residuals general statistics linearization method has not connsidered responses and their extreme value distribution, formulas of weighted linearization method for nonlinear random vibration are presented by the meed of reponses weighting.
本文针对一般统计线性化方法的残差最小化未涉及响应及其极值分布的不足，从响应量加权的原理出发，给出了非线性随机振动系统的一种加权线性化列式，从中可以导出几种具有相当精度的加权线性化方法。
2.
A numerical method for dynamic correlation analysis of failure modes for nonlinear random vibration sys- tem was presented.
数值算例中计算结果应用Monte Carlo随机模拟方法进行验证均较好吻合,表明了该方法是能够满足工程计算要求的,从而为非线性随机振动系统不同失效模式问动态相关系数的确定提供方法参考。
3.
The practical calculation formula of the displacement variance and cable tension variance are deduced based on nonlinear random vibration, and the practical wind - resistant design method of the single- layer plane cable net are brought based on the structural response.
推导了基于非线性随机振动理论的单层平面索网玻璃幕墙结构风振响应计算公式,并以此为基础提出了基于结构响应的单层索网玻璃幕墙结构的实用抗风设计方法,最后对该实用设计方法的准确性进行了校核。
补充资料：动态增强磁共振血管成像
动态增强磁共振血管成像
磁共振成像术语。静脉注射顺磁性对比剂以缩短血流T1值、显示血管影像的MR成像方法。和传统的、不使用对比剂的磁共振血管成像(MRA)方法(时飞法、相位对比法和黑血法)不同，动态增强MRA利用注射入血液的对比剂使血流的T1值比周围组织(包括脂肪组织)还要短，从而得到血管的显示。动态MRA可用2D或3D技术采集；需选择可获得最佳血液/背景组织对比的翻转角；需应用常规的2～4倍的对比剂剂量(0.2～0.4mmol/kg)及在尽可能短的时间内完成数据采集，并在扫描前期或扫描全程快速、稳定地注射对比剂。
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