水冷却大电流短网设计

以碳化硅冶炼电阻炉供电短网为例,论述了水冷却低压大电流短网设计中短网的结构形式、排列方法、导体材料及其型式规格的选择。并着重对影响短网安全和经济性最大的传热性能和感抗进行计算。实践表明设计计算与实测结果十分接近.     

经热处理的Fe80Cu20亚稳合金的电阻特性研究

采用机械合金化方法制备了Fe80Cu20亚稳合金粉末，压制成片状后分别在150℃、250℃、500℃进行了热处理，对500℃处理的样品进行了低温电阻测量。结果表理，样品的电阻表现为类似近藤效应的现象。     

沥青混凝土滚筒烘干强制拌和设备的选型

介绍了公路用沥青混凝土制备设备的主要结构组成，分析了它的优，缺点，阐述了对其进行选型配套的原则。     

重型钎杆用钢40SiMnCrMoV

在H_2O和5％NaCl水溶液中以浸泡试验用腐蚀增重和腐蚀失重法测量,并结合机械性能进行分析,可以认为40SiMnCrMoV钢完全可以代替40SiMnMoV和40CrNi3Mo钢制做重型钎杆。     

纳米SnO2材料的低温电阻特性

本文研究了纳米SnO2材料在低温下（15－290K）的电阻特性，以及颗粒度对样品电阻特性变化的影响，并给出了材料的导电机理。     

试论小说叙事视角的艺术功能

在叙事理论中 ,叙事视角的艺术选择是一种十分重要的叙事谋略。小说作为一种叙事文学 ,其叙事视角包括三种基本类型 ,并且每种类型都有其独特的艺术功能 ,难分高下优劣。因此 ,我们在小说创作过程中 ,就应该根据三种叙事视角各自的特点和优点 ,根据小说题材、内容和生活容量进行艺术选择 ,做到合理选择、灵活运用     

Genetic determinants of individual differences in avoidance learning: Behavioral and endocrine characteristics

Bidirectional genetic selection for good and poor active avoidance learning in a shuttle box has been carried out in three independent laboratories using remarkably similar discrete-trial training procedures. The resulting strains are known as the Roman High and Low Avoidance (RHA and RLA), the Syracuse High and Low Avoidance (SHA and SLA) and the Australian High and Low Avoidance (AHA and ALA) strains, respectively. An additional unidirectionally selected strain, known as the Tokai High Avoider (THA) strain was developed in Japan using a free-operant Sidman avoidance procedure in a Skinner box. This paper reviews the selection of the Syracuse strains, enumerates the various behavioral and endocrine characteristics of the strains, and compares them to the other similarly selected strains. The behavioral work suggests that genetic selection from diverse breeding stocks has resulted in common characteristics that differentiate the strains in the emotional, not learning, domain. The endocrine data, however, are somewhat at odds. The Syracuse strains differentiate one way with respect to endocrine function, and the Roman strains differentiate in the opposite way. We suggest, therefore, that the endocrine correlates are not tightly linked to the avoidance genotype. Genetic analysis of all of the selected strains for both the avoidance phenotype and the endocrine correlates will be needed to test this hypothesis.Preparation of this paper was supported by research grant MH-39230-3 from the National Institute of Mental Health.     

Using evolutionary computation to solve problems in nonparametric regression

This paper studies evolutionary mechanism of parameter selection in the construction of weight function for Nearest Neighbour Estimate in nonparametric regression. Construct an algorithm which adaptively evolves fine weight and makes good prediction about unknown points. The numerical experiments indicate that this method is effective. It is a meaningful discussion about practicability of nonparametric regression and methodology of adaptive model-building. Supported by the National Natural Science Foundation and 863 High Technology Project of China Ding Lixin: born in 1967, Ph.D. graduate student     

一种全纤维外热式中温盐浴电阻炉的设计与制造

本文所介绍的一种外热式全纤维中温盐浴电阻炉成功地解决了全纤维软毡炉衬的结构强度和电热元件不易固定的问题。该炉升温快、耗电少、生产率高;与同型号的砖砌炉相比,可节电35％以上;并具有体积小、重量轻、便于施工和维修等优点。