Abstract:A methed to modify the cone-generated cylindric worm gearing(ZK-Wormgearing)with the proprty of controllable mismatched contact has been proposed.The basic principleof the modification has been analysed.The contact state of the worm gearing could be modified bychanging the contact position and the curvature modification amount,which could be realized conveniently by changing the geometric parameter and the setting parameter of the grind wheel in wormmachining.

Abstract:Based on the study of effec t of torsion vibration natrual frequency on rollingmill main transmission system , the sensibility formula of natural frequency related to design parameter is given,By the means of programming, analysis and calculation have been carried out on 2300rolling mill main transmission system,It provides theoretical asis for dynamic optimizing transmis sion svstems.

Abstract:The bursts of 40HzEEG are a reliable indicator of the " focused arousal ". It hasan active significance in diagnosis of cognitive dysfunction.But, the bursts of 40 Hz EEG are seriously interfered by the high amplitude broad-band EMG signals from the scalp. It causes the difficulty of detection, This paper give a new method uf the combination of threshold extraction in frequency domain and neural network pattern recognition to realize the effective detection of 40 Hz EEGbursts , and reports the mean peak power of the 40 HZ EEG bursts for 11 subjects and analyses theirthinking states, The reaults indicate that the method given in this paper can be used feasibly and support the theory given by D,E, Sheer.

Abstract:It is proved first that hydrofracture has a self-similar elliptic extending characteristic which is independent of the praseure distribution in fractures by the theory of fracture me-chanics in this paper.Based on this theory ,the approximative analytic solutions of pressure distribution in fractures have been put forward by fracture mechanics coupled with fluid mechanics.

Abstract:In this paper,the permeability of coal from Nantong colliery is studied in a labo-ratory. The effects of desorbed gas temperature and water content on gas permeability were investi-gated. The results of experiments indieatd that decreasing gas pressure without desorption , the permeability of coal decreases, However, below the desorption pressure, the permeability of coal formethane increases, The reaults suggest that the logarithm of permeability of coal is a linear functionof the temperature and the permeability of coal saturated with water is lass than the permeability ofdry coal; with the increase of water content, the permeability of coal for methane is increasing.

Abstract:According to the transmission way of information flow of gear noise ,we presentthe method of solid state acoustic detection, Noticeing transmission characteristic of the acoustic information flow, we develop and deduce the time domain seperating method. The experimental resultshows that the method can identify gear failure and also can extract the acoustie information flow ofwhich can correctly reflect,the gear moving characteristic , It is very useful to monitor the gear statecharacteristic.

Abstract:比较了几种工质在近室温范围的性能并对20～60℃的水热管特性进行了研究，认为在该温度区间水仍为较合理工质，实验测得了20～60℃水热管的换热系数及最大热流密度，并整理出该研究范围的热管蒸发段和冷凝段换热特性的关联式。

Abstract:The evaporation region medel,based on the characteristic of the moisture evaploration inside a capillary tube and the pore distribution,is presented for analyzing the moisture evaporation inside the porous capillary material in the decraseing rate period of drying. The differential equation describing the moisture evaporation region is established and the general expression calculating the evaporation intersity is obtained, Then,the influences of the pore distribution on the evaporation region and the evaporation intensity are alse discussed.

Abstract:基于解耦方法，以各支路无功潮流为规划变量，并考虑了支路无功损耗的影响，构造了无功优化的非增量2次规划模型，其目标为因为无功补偿使有功网损减小获得的收益并扣除补偿费用后的净化现值最大。采用可完全消除增量变量迭代收敛性问题的拉格朗日乘子法和处理不等式约束的“违限取限”法，求解具有环网的电力网无功优化问题并附有算例，模型适用于35～110kV电力系统的无功优化。

Abstract:This paper has presented a multi-objective fuzzy optimal power flow medel.Inthe model , the multiple objectives, such as the minimum generation cost and the minimum powerloss, have been considered simultaneously, A new algorithm based on neural network models is aisopresented,in which the neural networks are employed to express, the membership function of fuzzysets and solve the optimization problems. The validity of model and algorithm is verified with numerical examples.

Abstract:Based on the BP algorithm,the Branched Feedforward Neural Network,one ofthe artificial neural network medel used for pattern classification is proposed in this paper, and therelated algorithm is also offered here, Several typical examples of pattern classification are studiedwith computer simulation, The simulation results show that the training time of Branched Feedforward Neural Network is obviously reduced and the classifying effect is much better as compared withgeneral BP Network.

Abstract:The inherent fault tolerance of multilayer neural networks (MLNs) is due to thedistributed properties of information processing and information storage in an MLN , and the inher-ent fault-masking capability of every neuron. Also,the concept of inherent fault tolerance of MLNsis formalized, Finally, perceptrons and three-layer nets are shown inherently fault tolerant underreasonable statistical conditions,respectively.

Abstract:The adsorption quantities of methane on anthracite and its char at different tem-perature and time were measured by using volumetric niethod. The corresponding adsorption formula-is presented. The experimental results have shown that the diffusion acti-vation energies of methane in the anthracite and its char are 14.3 kJ/mol and 26. 3 kJ/mol.It issuggested that the diffusion process of methane could be the flow through the micropores in the an-thracite and its char.

Abstract:In this paper the surface viseosity of BF slags bearing high titania has been mea-sured by an experimental device called LASVIM(Laser Surface Viscositymeter)which is designedby authors,and the comparision of the results with the previous works of the authors shows that thesurface visccoity of BF slag containning high titania is depending on its foaming property, Severalfactors on the surface viscosity are also investigated.

Abstract:A theorem solving a group of non-homogeneous linear differential equations tlirough integrating its basic solutions is putforward and proved,the mothematical play and physical natrue of the theorem is expouded, As an example,the theorem is applied to solving the question of thermo-bending of circular plate irradiated by laser.

Abstract:In the author's previous works,a methed of ordinary differential equations forsolving multiobjective programming problem had been presented. In this paper, we further use ordi-nary differential equatfons to discuss the general multiobjective programming Problem and its con-straints more deeply. Under certain conditions, starting from some neibourhood of any feasible solu-tion of multiobjective programming problem, along the trajectory of the established system of ordi-nary differential equations,the solution is always conversent to the(weak)efficient solution of theoriginal multiobjective programming problem with respect to partial arguments.

Abstract:Based on the principle of double frequency laser interference measurement ofhigh accuracy linear grating. This technique is discussed in detail from two aspots:totol lenth cumu-lative error measurement and Morie fringe signal quality analysis of linear grating.It includes lasersignal processing tochnique, signal sampling,computer interface circuit and related algorithm. withthis methed, we can not only get its accuracy parameter of a linear grating, but aiso analyze the er-ror factors which would affect the accuracy of a linear grating in graving process. In addition,it cancny out dynamic measuremtns for other length metrological elements.

Abstract:This paper presents the lately released frame work for Client / Server applica-tions software development, stressing on the characteristics of its OOP and Multi-DataBase supports.

Abstract:To analyse the situation of industrial solid waste in our country,tracking thetrend of development of technolog of reusing solid waste in outer country,connecting with researchof statement ,we can point out standing on comprehensive utilization ,breaking through key technolco-gy, improving utilization factor, keeping at popelaration,it is in vitably trend to advamce the devel-opment of technology of reusing solid waste in our country.

Abstract:A new calculating model was derived from the relation of absolute hardness tothe radii of polyvalent ions. The computational results with this model are very well consistent withthe experimental values.

Abstract:根据给定的施肥量与产量关系的实验数据，通过必要的假设和合理性分析之后，用二次函数去拟合氮肥的作用模型，而用威布尔生长模型去拟合磷、钾肥作用模型。同时，引入修正量△Y对模型进行修正，并从实用价值角度对模型进行讨论中得到了最大产量的范围，还讨论了施肥为0时产量值不为0的原因，最后讨论了模型的优缺点。