流溪河灌区工程渠首枢纽计算机监控系统开发与研建

流溪河渠首枢纽计算机监控系统在自行开发的现场总线工业局域网及专用智能终端、冗余管理和故障诊断专家系统的硬件环境下，在分别由监控系统（含设备层与上位机在线监控系统）和管理系统（由离线管理与服务器上的查询服务系统组成）软件的支持下，实现了对枢纽工程3座水闸47孔闸门的运行和管理，具有自动监测、自动量水、自动控制及系统重构等功能．现已以每天24h不间断地运行了2年，顺利地完成了枢纽工程的调洪、调水等日常调度与运行工作．     

半导体激光器到单模光纤耦合技术的现状及发展趋势

简要阐述了半导体激光器到单模光纤的耦合损耗来源，详细介绍和分析了耦合技术的发展和现状，并探讨了耦合技术的发展趋势。     

Optic flow field segmentation and motion estimation using a robustgenetic partitioning algorithm

Optic flow motion analysis represents an important family of visual information processing techniques in computer vision. Segmenting an optic flow field into coherent motion groups and estimating each underlying motion is a very challenging task when the optic flow field is projected from a scene of several independently moving objects. The problem is further complicated if the optic flow data are noisy and partially incorrect. In this paper, the authors present a novel framework for determining such optic flow fields by combining the conventional robust estimation with a modified genetic algorithm. The baseline model used in the development is a linear optic flow motion algorithm due to its computational simplicity. The statistical properties of the generalized linear regression (GLR) model are thoroughly explored and the sensitivity of the motion estimates toward data noise is quantitatively established. Conventional robust estimators are then incorporated into the linear regression model to suppress a small percentage of gross data errors or outliers. However, segmenting an optic flow field consisting of a large portion of incorrect data or multiple motion groups requires a very high robustness that is unattainable by the conventional robust estimators. To solve this problem, the authors propose a genetic partitioning algorithm that elegantly combines the robust estimation with the genetic algorithm by a bridging genetic operator called self-adaptation     

The loss-grief reaction and coping behavior of a mother whose child died of a brain tumor

This is a study on the loss-grief reaction and coping behavior of a mother whose child died of brain tumor. The researcher used field methods to collect data and analyze observations of mother-nurse interaction. The results showed that this mother had self-blame depression, and guilt feelings and affected the whole family. With the help of nurses and various supportive resources the mother was finally able to go through the grieving process smoothly.     

A simple novel constitutive equation for concrete

A simple novel constitutive equation, three parameter strength criterion for concrete is proposed to represent the composite nature and complex failure mechanism of material of concrete. In this paper, the study is to demonstrate the use of scalar valued function, invariant theory, as applied to concrete failure prediction. Without the loss of accuracy of prediction, a three parameter strength criterion is developed.     

Experimental and analytical studies in crack initiation under fatigue: Part II — Analysis

The experimental results on damage evolution before crack initiation reported in Part I are analyzed. An energy release rate due to damage growth before crack initiation is evaluated with the use of a semi-empirical method for energy calculations and experimental measurements. Correlation of the elementary movements of the damage zone with the energy release rate shows that the rate of damage growth decreases monotonically. This is consistent with the growth behavior of an average damage density within the zone. The experimental data have shown that crack initiation occurred when damage density within a core zone ahead of the notch tip reached a critical level, independent of loading conditions. Assuming that damage evolution is a stress-temperature driven process, it is shown that a first order reaction equation describes reasonably well damage growth within the core zone. The rate constants are evaluated by invoking principles of kinetic theories of fracture and experimental results on crack initiation times. An activation energy for defect nucleation is found to be half the energy for thermal destruction and twice the enthalpy of activation for secondary chain motions below glass transition temperature. This result indicates that chain motions and chain scission are possible rate determining processes leading to crack initiation. This is consistent with the observation that dense crazing precedes crack initiation.     

EWSD中的ADSL.lite和xDSL

在简单介绍了ADSL技术的基础上,具体介绍了如何在EWSDU交换机中创速和设置ADSL用户功能和xDSL功能.     

缺陷交互作用对陶瓷半导体导电性能的影响

本文借助于缺陷化学反应过程，分析了陶瓷半导体内缺陷间的交互作用，得到了陶瓷半导体实验研究的三个重要启示：（1）强还原（或氧化）或施主（或受主）掺杂对同一样品不能同时起到最佳效果；（2）本征原子空位对施主或受主的补偿导致电导率的非线性增长；（3）缺陷的缔合降低了半导化杂质的有效浓度，从而使电导性能发生异常变化。     

GaAsP混晶中Fe杂质能级的无序分裂

GaAsP混晶中Fe杂质基态与激发态的光离化截面的幅度比S(x)随组分x有规律地变化,本文提出一种理论估算,认为它是Fe能级无序分裂的结果.