Abstract:One recent parallel thinning algorithm is analyzed on detail in this paper.The analytical emphasis is put on its pixel deletion conditions.It is shown that owing to the inherent faults in these conditions,not only all four elements of an isolated 2x2 square are removed but also there exist "worm eaten" response and "thin hair" phenomina in its result skeleton.Subsequently,an improved one is proposed which is also strictly 8 connected.Experiments indicate that the modification effectively overcomes the original's shortages and has a little better time efficiency.

Abstract:指出整定同步发电机的无功－电压（ＱＧ－ＵＧ）特性是自动调节励磁（ＡＥＣ）装置最基本的功能之一，提出自动调节励磁装置的作用可等效为同步电势在端电压方向的投影（Ｅｑｃｏｓδ）及同步电抗（Ｘｄ）的代换。当视转子电流恒定时，额定运行点的ｄＱＧ／ｄＵＧ取决于同步电抗Ｘｄ。

Abstract:This paper has applied the var cost to the theory of spot price.An augmented Lagrange method is employed to develop the exact model of spot price of active power and reactive power,and the physical means of Lagrange multipliers are explained.The numerical examples are given to demonstrate the validity of the proposed model.

Abstract:根据安阳钢铁公司高炉的原料条件和冶情况，实验了Ａｌ２Ｏ３、二元碱度（ＣａＯ／ＳｉＯ２／ＭｇＯ和ＴｉＯ２对高炉渣的粘度、熔化性和脱硫性能的影响，为安钢高炉优化造渣制度了和实验依据。

Abstract:给出了一种于应用于ＧＸＨ－１０２型红外气体分析器中的８０９８微机测控系统，该系统通过软件方法修正了传感器的非线性和温度效应误差，提高了仪器精度，减小了仪器体积。该系统具有程控放大、浓度温度上下限报警、控制相敏整流、串口通讯、手动和自动校准等功能。

Abstract:Based on the principle of material incress manufacturing, a new idea of the die's construction manufactured by sheet metal layer for layer through gluing is presented, and a CAD approach of the die's three-dimensional surface creating and the scattering handling is discussed in this paper. It is also analysised that layer's separation of the three-dimensional CAD model, change and transmission of separating layer's data, and mechanical properties of die's construction manufactured by sheet metal layer for layer through gluing. The results of the research indicate that die's manufacturing by sheet metal layer for layer through gluing is feasible and effective one of material incress manufacturing technical.

Abstract:由诺依曼公式借助椭圆积分计算二平行共轴圆线圈间的互感系数，利用虚功原理获得此二载流线圈间相互作用的磁力，并对磁力的性质加以讨论图示。

Abstract:用数值拟合法代替数学渺茫皮法，实现了对不同频率误差信息的分离，通过推导证明两咱方法在本质上是相同的。当将前者按后者的形成理论进行推导时，得出了一种与传统窗函数形状迥然不同的新型窗函数。给出了全部推导过程，并介绍了实用效果。

Abstract:A cycloidal guide mechanism was studied in this paper.The optimum relations and diagrams between its characteristics of long period of aniform motion and step by step motion and its typical sizes were given.The mechanism can be synthesizied easily by using these relations and diagrams.

Abstract:This article describes the diffraction efficiency,resolution and colour purity of synthetic slit rainbow holograms.A formula is given to express the relation between the diffraction efficiency and the synthetic slit width.It is proved that the resolution and the colour purity of this holograms are both lower than the ordinary rainbow holograms.

Abstract:A new algorithm,based on the combination of the evolutionary programming with the traditional gradient adjustment technique,is presented for solving the optimal power flow problem which describes some technical problems(representations of candidate solutions,evaluation function,mutation operator).Its efficiency is higher than that of general evolutionary programming.

Abstract:This paper presents the application of fuzzy neural networks (FNN) in power transformer faults diagnosis.A FNN model is builded,in which input is transformer oil color spectrum analysis and output is fault type.The test results of fault examples show its effectiveness and potential applicable worthiness.

Abstract:A new still picture compression coding algorithm,WH JPEG algorithm have been proposed due to JPEG baseline system having problem.Advantages of the algorithm include:remove blocking effect,higher compression rate,satisfactory multiform demand by contorlling number of layer.

Abstract:This paper investigates the minimax problem of a non differentiable saddle functional,and constructs a nonsmooth neural network to search for the saddle point of a saddle functional.Under suitable conditions the convergence and stability of the network are discussed,using Lyapunov theory.

Abstract:讨论利用线阵ＣＣＤ图象测量方法。配备Ｚ、Ｙ二维运动工作台及绕Ｚ轴回转数显工作台，地异形回转体三轮轮廓尺寸进行检测。用Ｍａｒｒ边缘检测算子对ＣＣＤ获得的原始灰度图像进行处理，采用最小二乘法完成曲线拟合，获得亚象元分辩率。对Φ２００ｍｍ异形回转体零件进行尺寸测量，测量系统精度达到μｍ级，并给出了试验结果。

Abstract:Dipe cutting by Double Punching is an ideal and efficient method.On the basis of Scrap Out Going,the theoretical curve of the punch is deduced.According to the curve,the front of the punch is too slender and fracture easily in cutting.Double punching Method cut a slot on one side of the pipe first,then punch into the slot and cut off the pipe.High quality of the pipe end is obtained and the life of the punch is prolonged by this method.The shape of the punch is also clesigned on the basis of the mechanical analysis.

Abstract:The dynamic characteristic of active isolation atuator on flexible foundations was studied under the installation of parallel structure and foundation cancellation.The influencing relationships between active isolation force of the different installation ways and passive isolation system and flexible foundation were analyzed and compared.Scientific basis for selecting installation ways of active isolator is provided in this paper.

Abstract:介绍了一种针对工业ＣＴ用户具体需求的计算机系统的设计方法。该方法在设计甸首台工业ＣＴＵ商品机中得到了应用。

Abstract:Some conceptions of stable quaternion matrices and some judging criteria are given.The Robrach theorem,Taussky theorem,Ostrowski Schneider theorem and Gerschgorin theorem are generalized to quaternion field.The conclusion about two quaternion matrices,i.e.,inferior positive matrices are unstable,interior negative matrices are stable and some other results are pointed out.

Abstract:Network management has become a key technique in the network area. This paper presents a comprehensive introduction about the basic ideas of network management,main techniques it involves , and developmental trend.