Perception of disturbing and neutral words through the autokinetic word technique.

Disturbing and neutral words were selected individually for Ss by means of a word association test. It was then suggested to these Ss that an apparently moving but actually motionless point of light in a completely darkened room (autokinetic effect) would write a sentence containing a given word. The given word was either a disturbing or neutral word. The Ss reported perceiving fewer of the disturbing words. Those disturbing words that were perceived had a greater latency than perceived neutral words. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Anxiety and repression.

In an experiment designed to test the Freudian concept of repression proper, Ss learned 20 paired associates to a criterion of one perfect repetition, the stimulus material consisting of five words from the Jung word list which elicited one or more complex indicators (the repressed words), five titles of the subtests of an intelligence test associated with failure (the traumatic words), five taboo words which also had been added to the Jung word list to determine whether they would elicit complex indicators, and five neutral words from the Jung list. Response words were all from Glaze's list. Results indicate no differences in learning scores for the different materials; however, recall and relearning scores for the affective material were significantly poorer than for the neutral material. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

On secondary reinforcement and shock termination.

"This review of the experimental literature leads us to conclude that there is almost no evidence to show that secondary reinforcement can be established by the association of a neutral stimulus with noxious-drive reduction. An analysis of the experiments suggests that they have not been completely adequate for a variety of reasons, depending upon the particular experimental designs used." From Psyc Abstracts 36:01:1EL28B. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Considerations for the Use of Semi-Transparent Metallic Thin Films as Potential Transmittance Standards in Spectrophotometry

Various characteristics of evaporated metal-on-fused silica filters are discussed in relation to their optical transmission properties. Special metal holders provided with shutters were designed to be used with these filters, and are described in detail. Transmittance measurements, performed in various conditions, are reported and indicate that the evaporated metal-on-fused silica filters might present an acceptable material as transfer standards in spectrophotometry.     

Effects of replacing roughage with soy hulls on feeding behavior and milk production of dairy cows under hot weather conditions

Two total mixed rations (TMR) containing different proportions of roughage neutral detergent fiber (NDF) were fed to lactating cows under Israeli summer conditions, and the effects on feeding behavior and milk production were measured. Forty-two lactating cows were divided into 2 groups fed ad libitum a TMR containing either 18% NDF of roughage origin (control group) or only 12% roughage NDF, in which the corn silage component (16.5% of dry matter [DM]) was replaced with soy hulls (experiment group). This and additional adjustments in TMR were reflected in higher net energy for lactation and in vitro digestibility of the experimental TMR. Cow behavior was investigated at the feeding lane during June 2001; about 11,000 cow visits were analyzed. Feed intake per meal and average meal duration were significantly higher in the experiment group (1.51 kg of DM per meal and 12.1 min per meal, respectively) as compared with the control group (1.22 kg of DM per meal and 9.47 min per meal, respectively). However, number of meals per day recorded in the feeding lane was significantly higher in the control group (21.0 vs. 16.6 meals/d per cow). Distribution of meals and feed intake along the day depended more on management practices, such as milking and feed dispensing times, than on feed composition or weather conditions. These differences between groups were expressed in similar daily eating duration (approximately 200 min), and because the rate of feed consumption was similar for both treatments (approximately 127 g DM/min), the daily average DM intake was also similar (25.0 to 25.7 kg). However, NDF intake was higher in the experiment group. Consequently, the average milk yield was higher in the experimental group, and production of milk fat, 4% fat-corrected milk, and economically corrected milk were significantly higher in the experiment group than in the control group. Data imply that the experimental TMR containing only 12% NDF of roughage origin is more suitable for cows under hot climate conditions compared with the control TMR.     

消弧及过电压保护装置的应用实践

简述了消弧及过电压保护装置的结构及工作原理，详细介绍了该装置的特点及应用实践。     

铁路10 kV自闭/贯通线路故障行波特征分析

10 kV铁路自闭/贯通线路多采用中性点非有效接地方式，供电臂长、沿线环境恶劣，故障（特别是小电流接地故障）频繁发生、故障位置不易查找.为了解决自闭/贯通线路故障自动定位问题，分析了自闭/贯通线路电气结构的特殊性，以行波理论为基础研究了接地故障和相间短路故障产生的暂态电压、电流行波特征，发现接地故障和相间短路故障都存在参数比较稳定的行波线模分量.详细分析了行波在不同结构线路末端的反射规律以及行波在不同线路结构中的传播规律，分析结果为行波测距原理应用到自闭/贯通线路故障定位的研究提供了理论基础.     

铁路10kV自闭／贯通线路故障行波特征分析

10kV铁路自闭，贯通线路多采用中性点非有效接地方式，供电臂长、沿线环境恶劣，故障（特别是小电流接地故障）频繁发生、故障位置不易查找，为了解决自闭，贯通线路故障自动定位问题，分析了自闭，贯通线路电气结构的特殊性，以行波理论为基础研究了接地故障和相间短路故障产生的暂态电压、电流行波特征，发现接地故障和相间短路故障都存在参数比较稳定的行波线模分量．详细分析了行波在不同结构线路末端的反射规律以及行波在不同线路结构中的传播规律，分析结果为行波测距原理应用到自闭，贯通线路故障定位的研究提供了理论基础。     

轧制过程轧制压力模型的研究

轧制压力的大小,除了与钢种的变形抗力有关之外,还与变形时的受力方式、轧件形状尺寸和摩擦条件有关。结合冷轧机的轧制特点和轧制原理采用直线逼近法建立总轧制压力模型,并确定中性角和轧制力的位置,从而定性分析各因素对轧制力的影响,并为定量分析轧制力及电机负荷奠定基础。     

基于主分量分析的BP神经网络人脸图像识别算法

本文提出了一种基于主分量分析法和反向传播神经网络的图像识别方法,并详细阐述了这种方法的具体实现过程。在整个算法过程中,主分量分析法主要用于图像的预处理,也就是提取有用的特征样本;反向传播神经网络则是作为一个分类器对未知图像进行分类。此方法具有较强的自适应性、较高的识别率以及对某些噪声的鲁棒性。