液位测量吹气装置的研究

介绍吹气法测量液位、界面、密度的原理；导出测量液位、密度的函数表达式及密度补偿的液位修正函数。给出吹气装置的基本组成；设计吹气装置的模拟试验系统；讨论模拟实验的结果；指出吹气装置应用中应注意的事项。     

高清晰度电视样机控制子系统的实现

本文提出了基于微处理器AT89C55的国家高清晰度电视样机控制子系统的总体设计方案和软硬件实现方法。目前，该控制系统己顺利完成，并参与北京、上海两地的功能样机测试。     

利用C++Builder 5.0开发原理框图绘图软件

介绍了原理框图各种图形的数据存储方法，利用C^ Builder5.0开发了原理框图的绘图软件，实现了原理框图绘制的基本功能。     

爆炸焊接边界效应的力学能量原理

在爆炸焊接工艺中,存在一种称为边界效应的物理现象。即在一般情况下,在爆炸焊接后的复合材料中,会出现雷管区不复、其余周边被打伤、打裂和变形严重等问题。这些问题严重地影响着这类材料的质量。该文从传统的和经典的力学及能量原理出发,探讨了边界效应产生的力学 能量原理,并且提出了预防的措施。     

Working Memory Capacity and the Antisaccade Task: Individual Differences in Voluntary Saccade Control.

Performance on antisaccade trials requires the inhibition of a prepotent response (i.e., don't look at the flashing cue) and the generation and execution of a correct saccade in the opposite direction. The authors attempted to further specify the role of working memory (WM) span differences in the antisaccade task. They tested high- and low-span individuals on variants of prosaccade and antisaccade trials in which an eye movement is the sole requirement. In 3 experiments, they demonstrated the importance of WM span differences in both suppression of a reflexive saccade and generation of a volitional eye movement. The results support the contention that individual differences in WM span are not exclusively due to differences in inhibition but also reflect differences in directing the focus of attention. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

基于约束优化的联想记忆模型学习算法

本文提出了一种对称互连神经元网络的学习策略,利用全局约束优化方法确定连接权。优化过程采用了梯度下降技术。这种学习算法可以保证训练样本成为系统的稳定吸引子,并且具有优化意义上的最大吸引域。本文讨论了网络的存储容量,训练样本的渐近稳定性和吸引域大小。计算机实验结果说明了学习算法的优越性。     

Generation and Memory for Contextual Detail.

Generation enhances item memory but may not enhance other aspects of memory. In 12 experiments, the author investigated the effect of generation on context memory, motivated in part by the hypothesis that generation produces a trade-off in encoding item and contextual information. Participants generated some study words (e.g., hot-___) and read others (e.g., hot-cold). Generation consistently enhanced item memory but did not enhance context memory. More specifically, generation disrupted context memory for the color of the target word but did not affect context memory for location, background color, and cue-word color. The specificity of the negative generation effect in context memory argues against a general item-context trade-off. A processing account of generation meets greater success. In addition, the results provide no evidence that generation enhances recollection of contextual details. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

机械定尺飞锯机中的555时基电路

介绍了５５５时基电路在机械定尺飞锯机中的应用及工作原理。     

NiTi形状记忆合金基本驱动特性

研究了预应变ＮｉＴｉ形状记忆合金的基本驱动特性，结果表明，加热和冷却过程回复力存在滞后行为；卸载过程中应力与应变具有与加热、冷却过程相关的非线性关系；卸尖力随卸载应变速率增加而降低，此外研究了预应变ＮｉＴｉ合金丝产生回复力后对外应力的响应行为。     

钻孔与岩体裂隙斜交渗流场井流理论与示踪方法研究

本文论述了钻孔揭露裂隙岩体与裂隙斜交情况下通过示踪方法测定裂隙渗透性及其参数，将稀释测井与示踪测井方法相结合建立了井流理论。推导了双井系统中单裂隙岩体的渗透系数、等效水力隙宽、静水头、影响半径及水力坡度等的计算公式，并将此研究成果应用于大坝的渗流场探测之中。