查询词典 memory model

On the basis of partially observable Markov decision processes,two finite-memory policy-gradient algorithms,that is,model-based GAMP algorithm and model-free IState-GPOMDP algorithm,were implemented,and employed in the simulation of a robot walking in a maze.

在部分可观Markov决策过程的基础上，实现了两个有限记忆的策略梯度优化算法：基于模型的GAMP算法和无模型的IState-GPOMDP算法，并利用该算法对机器人走迷宫的问题进行了仿真。

Simulation results demonstrate that memory polynomial model is more robust to delay estimation error than the general nonlinear polynomial model.

仿真结果表明，采用记忆多项式模型比一般多项式模型对延时估计偏差有更强的鲁棒性。

Its simple brain structure and superexcellent learning and memory ability provide a very good research model to neurobiologist . In addition , honeybees can also become a research model for immunity , hypersusceptibility , mental disease and longevity .

蜜蜂授粉对农业生产和全球生态起重要的作用，蜜蜂也是研究社会行为和学习记忆导航行为的模式生物，其简单的脑部结构和卓越的学习记忆能力又为神经生物学家提供了绝好的研究模型，此外，蜜蜂可以成为免疫，过敏，精神疾病和长寿等试验的研究模型。

Therefore, this mathematical model can save more time end memory capacity, it's a very useful mathematical model.

因此是一种更实用、更先进的数学模型。

In this paper, the improvement of the low velocity impact resistance performance of composite plates using shape memory effect of shape memory alloy is analyzed by using finite element method, The constitutive relationship and the model of finite element analysis of SMA hybrid composite plates are established, The finite element equation is solved by using the Newmark direct integration method and the modified Hertzian contact law.

应用有限元方法分析了利用形状记忆合金的记忆特性提高复合材料抵抗低速冲击的能力，建立了SMA复合材料板的本构关系和有限元分析模型，利用修正的Hertzian接触定律确定冲击接触力，应用Newmark直接积分法求解方程；研究结果表明利用SMA的形状记忆功能可有效地改善复合材料板的低速冲击响应性能。

There is a predictable imperfection and high demand on the device memory capacity when current content protection systems are used to solve the certificate revocation problem. A scheme that needs lower memory and has the ability to deal with revocation information perfectively is proposed based on the universal model.

针对现有内容保护系统在处理证书吊销问题时的高存储量要求和可预见的不完备性，基于统一吊销问题处理模型提出一种对存储量要求很低并且吊销功能完备的吊销信息处理方案。

Objective To use an ischemical reperfusion injury rat model by pulsinelli-4-VO andobserve the changes of the expression of Glu, N-methy-D-asparagic acidreceptor subunits NR_1 and NR_(2B) and ability of learning and memory after procerebrum ischemic reperfusion injury, and approach the pathogenesy of learning andmemory disorder induced by ischemic reperfusion injury, and the intervention ofginsenoside Rg_2 on the learning and memory disorder after procerebrumischemic reperfusion injury.

目的利用pulsinelli四血管法体建立脑缺血／再灌注损伤模型，观察前脑缺血损伤后谷氨酸、N-甲基-D-天门冬氨酸受体亚单位NR_1、NR_(2B)表达的变化及学习记忆的改变，从兴奋性氨基酸的兴奋毒作用尤其是其受体的表达方面探讨脑缺血／再灌注损伤引起的学习记忆功能障碍的发生机制，并观察人参皂苷Rg_2对脑缺血缺氧损伤引起的学习记忆障碍的干预机制。

Methods: A brain concussion was produced in rats using a simple pendulum device model. One control (n=12) and six experimental groups were used(n=12 in each group). The cerebral concussion groups were assigned to sacrifice times ranging from 1 day to 24days after injury.A Morris Water Maze memory paradigm was used to assess learning and memory function. Pycnosis degeneration or necrosis neurons in the locus cerebral cortex, dorsal hippocampus, dentate fornix and brainstem reticular formation were observed and counted after brain concussion. Cholinergic neurons in the basal forebrain and brainstem reticular formation were identified and quantitated using choline acetyltransferase.

应用自制单摆式闭合性机械打击装置建立脑震荡大鼠模型；成年SD大鼠随机分为1个对照组(n=12)和6个脑震荡组(即伤后1、2、4、8、16、24d，n=12)；应用Morris水迷宫(Morris Water Maze，MWM)实验评价大鼠的学习记忆功能；用光镜对大鼠的上述脑区的固缩变性坏死细胞进行观察和计数；用免疫组化方法检测基底前脑和脑干网状结构的胆碱乙酰转移酶(cholin acetyltransferase，ChAT)阳性细胞的表达。

RESULTS:Naokangtai capsule improved the abilites of active and passive learning and memory remarkedly in the model mice with cerebral ischemia-reperfusion injury,but there was no influence to the contents of MDA,SOD and MAO.In senile dementia mice induced by D-galactose,Naokangtai capsule possessed obvious effects of improving memory and spatial resolution and decreased contents of MDA and MAO in blood significantly.

结果：脑康泰胶囊显著增强脑缺血再灌注损伤模型小鼠被动和主动学习能力，但对血液MDA、MAO和SOD含量影响不显著；脑康泰除明显增强老年痴呆小鼠主动学习和空间分辨的能力外，还能显著降低小鼠血液中MDA和MAO水平。

This thesis adopted an ancient animal model in the experimental research and chose NOS, MDA, MAO-B and Tche that may delegate memory and learning, research Mus' memory and learning at the "excessive fright impairs the kidney" stress.

本文的实验研究部分，在已有造模方法的基础上进行了改进，选择反映脑的记忆和学习功能的NOS、MAO-B、MDA和Tche等指标，对&恐伤肾&造模小鼠脑的记忆和学习功能进行了研究。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了