扩展的DSS中的模型和知识

本文主要提出了扩展的DSS中模型的一种表示形式和扩展的DSS中的知识库系统,进而提出了在这样的DSS中,是如何运用知识自动选择模型对问题作出解答的。     

药物分子剖面特性的计算机图形表达

将理论化学与计算机图形学相结合，分析药物分子剖面的势场分布特性。将理论化学计算所得数据，形成空间分布，经过投影，坐标计算，投影点追踪，系统的搜索，在计算机上绘出其势场特性分布图形，并用ＰＡＳＣＡＬ语言形成一实用性强，功能完善的软件。     

CH3—OH→CH2—H2O的反应途径及动态学计算

用从头算ＵＨＦ／６－３１Ｇ方法计算ＣＨ３＋ＯＨ→ＣＨ２－Ｈ２Ｏ的反应途径，在此基础上计算沿反应途径的动态学性质及正则变分过滤态理论的速率常数，同时进行隧道效应的校正。结果表明，变分过滤态方法和隧道效应正对该反应体系效果明显，其中小曲率近似的隧道效应校正效果更好一些。     

半群环原子性的一个充要条件

在环是可素化的，以及半群有完全不可逆生成集，且满足a．c．c．p．(主理想升链条件)的条件下，得到了半群环原子性的一个充要条件。     

萍乡方言的语音分析

萍乡方言虽然只在萍乡地区通行,但其本身却具有完整的结构系统。本文是萍乡方言研究系列论文之一,试从声母、韵母、声调三个方面对萍乡方言的语音系统加以分析。     

Functional magnetic resonance imaging of amphetamine craving

The aim of this study is to identify the brain activity associated with amphetamine craving for understanding the neurobiology of addiction by watching pictures of happy, sad or amphetamine. Brain activity was measured in 12 amphetamine addicts and 12 healthy subjects by fMRI while the subjects watched pictures designed to elicit happy feelings, sad feelings, or the desire to use amphetamine. The result demonstrated that amphetamine cues led to abnormally high cingulate and low frontal lobe activation in amphetamine addicts, who showed abnormalities in affect-related brain activation.     

Shape recovery using high dynamic range images

An effective method for object shape recovery using HDRIs (high dynamic range images) is proposed. The radiance values of each point on the reference sphere and target object are firstly calculated, thus the set of candidate normals of each target point are found by comparing its radiance to that of each reference sphere point. In single-image shape recovery, a smoothness operation is applied to the target normals to obtain a stable and reasonable result; while in photometric stereo, radiance vectors of reference and target objects formed due to illuminations under different light source directions are directly compared to get the most suitable target normals. Finally, the height values can be recovered from the resulting normal field. Because diffuse and specular reflection are handled in an unified framework with radiance, our approach eliminates the limitation presented in most recovery strategies, i.e., only Lambertian model can be used. The experiment results from the real and synthesized images show the performance of our approach.     

关于齿轮胶合强度计算方法的研究Ⅱ

本文根据实验的结果,对基础油和极压油的抗胶合能力进行了对比,对添加剂在试件表面生成的极压被敷膜进行了微观成份分析,证明极压油中硫、磷元素在生成极压被敷膜时起主要作用,论证了闪温法不适用于有添加剂的润滑油。     

教育统计理论在评估统考中的应用

本文根据教育统计理论,借助微机,对省属12所师范专科学校的热学统考资料进行了分析研究,指出了用教育测量和教育统计理论指导评估统考的重要性。     

泛复变函数的无穷可微性

本文术仅证明了泛复数空间s(e)中的解析泛复变函数无穷可微,而且还指出了解析泛复函可表为幂级数以及其幂级数的余项具有与实函相同的形式。