On the Locus of Speed-Accuracy Trade-Off in Reaction Time: Inferences From the Lateralized Readiness Potential.

Lateralized readiness potentials (LRPs) were used to determine the stage(s) of reaction time (RT) responsible for speed-accuracy trade-offs (SATs). Speeded decisions based on several types of information were examined in 3 experiments, involving, respectively, a line discrimination task, lexical decisions, and an Erikson flanker task. Three levels of SAT were obtained in each experiment by adjusting response deadlines with an adaptive tracking algorithm. Speed stress affected the duration of RT stages both before and after the start of the LRP in all experiments. The latter effect cannot be explained by guessing strategies, by variations in response force, or as an indirect consequence of the pre-LRP effect. Contrary to most models, it suggests that SAT can occur at a late postdecisional stage. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

催化裂化大油气管线阻焦剂的研究与开发

介绍了阻焦剂的阻聚分散机理，测定了不同组分的阻焦剂对不同性质原料的阻焦效果，并考察了不同加入浓度对阻焦率以及催化裂化产品分布的影响。试验结果表明：加入50—100μg/g的阻焦剂，可使催化裂化大油气管线阻焦率达到53．7％—63．8％，同时对产品分布及产品性质无不良影响，具有技术经济可行性。     

SPC在变速器制造中的应用

这里首先建立了SPC系统的数学模型及数据处理模型，在此基础上完成了系统的功能结构设计以及事务处理过程设计，建立了关键工序与质量特性值的选取准则，继而完成了代码设计、数据库设计和故障诊断专家系统的设计：所形成的SPC软件系统达到了原设计指标要求。     

Magnetic properties of high-temperature superconductors: Analysis within the framework of the impurity mechanism

The impurity mechanism proposed earlier is used to interpret the magnetic properties of hightemperature superconductors. The appearance of superconductive granules and the existence of weak bonds in grains of ceramics and in single crystals is explained. The irreversibility line is obtained and its new interpretation as the line of thresholds of appearance of infinite nonsuperconductive cluster is given. The relaxation time of the magnetic susceptibility in alternating magnetic fields is calculated. The decrease of the Meissner fraction with increase in magnetic field and decrease in doping, and other magnetic properties are explained.     

露采边坡渗流的有限元分析及其实例

介绍了应用有限元法求解渗流问题的原理及其实例。     

大红山铜矿岩体结构调查分析

大量工程实践已证明岩体结构是控制岩体稳定性的重要影响因素。为此，以大红山铜矿为研究背景，在选定有代表性调查地段的基础上，引入详细观测线法对其岩体结构进行了详细调查与统计。分析结果表明：调查区域内巷道岩体节理裂隙比较密集和发育，主要发育有倾向N53E、走向N37W、倾角53°，倾向W26S、走向N36W、倾角68°；倾向E1S、走向NIE、倾角89°的三组优势结构面，其中优势结构面第二组和第三组构成不稳定块体，并且断层及软弱夹层比较发育，加剧了巷道的破碎程度，对巷道围岩的稳定性有控制作用。最后提出了在巷道施工中密切注意围岩稳定性变化，避免工程事故的发生的建议。     

Using airborne laser scanning to monitor tree migration in the boreal-alpine transition zone

The boreal tree line is expected to advance upwards into the mountains and northwards into the tundra due to global warming. The major objective of this study was to find out if it is possible to use high-resolution airborne laser scanner data to detect very small trees — the pioneers that are pushing the tree line up into the mountains and out onto the tundra. The study was conducted in a sub-alpine/alpine environment in southeast Norway. A total of 342 small trees of Norway spruce, Scots pine, and downy birch with tree heights ranging from 0.11 to 5.20 m were precisely georeferenced and measured in field. Laser data were collected with a pulse density of 7.7 m^− 2. Three different terrain models were used to process the airborne laser point cloud in order to assess the effects of different pre-processing parameters on small tree detection. Greater than 91% of all trees > 1 m tall registered positive laser height values regardless of terrain model. For smaller trees (< 1 m), positive height values were found in 5-73% of the cases, depending on the terrain model considered. For this group of trees, the highest rate of trees with positive height values was found for spruce. The more smoothed the terrain model was, the larger the portion of the trees that had positive laser height values. The accuracy of tree height derived from the laser data indicated a systematic underestimation of true tree height by 0.40 to 1.01 m. The standard deviation for the differences between laser-derived and field-measured tree heights was 0.11-0.73 m. Commission errors, i.e., the detection of terrain objects — rocks, hummocks — as trees, increased significantly as terrain smoothing increased. Thus, if no classification of objects into classes like small trees and terrain objects is possible, many non-tree objects with a positive height value cannot be separated from those actually being trees. In a monitoring context, i.e., repeated measurements over time, we argue that most other objects like terrain structures, rocks, and hummocks will remain stable over time while the trees will change as they grow and new trees are established. Thus, this study indicates that, given a high laser pulse density and a certain density of newly established trees, it would be possible to detect a sufficient portion of newly established trees over a 10 years period to claim that tree migration is taking place.     

基于Windows CE的线路巡检系统

首先讨论了现有线路巡检模式的不足，然后提出了利用windows CE来构建线路巡检系统。分析了该系统的硬件平台之后，提出了线路巡检系统的体系结构，阐述了该系统应具有的软件功能。在实际应用中表明，该系统在线路巡检中有较强的推广价值。     

用最小二乘法恢复逐行倒相副载波

介绍ＰＡＬ制彩色全电视信号中色同步信号编码原理及恢复逐行倒相副载波的过程中，两种计算色同步信号相位角的方法。并且在实验的基础上得出：最小二乘法在ＰＡＬ制电视信号的副载波相位角计算中不仅可以满足精度要求，而且简便灵活。