立窑窑面空气过剩系数与节能浅析

本文根据一些立窑水泥厂的热工测定数据,推导出了化学不完全燃烧热损失Q_(hb),废气带走热损失Q_f与窑面空气过剩系数之间的关系,阐述了产生化学不完全燃烧热损失的原因,并就如何降低热损失,节约能源提出了设想。     

汽车新能源分析

车用燃料是汽车工业的血液，为了减少对石油产品的依赖并解决环境污染问题，寻找一种替代性、干净的代用汽车燃料巳成为汽车工业迫待解决的技术课题，本简要分析了汽车工业几种可行的新能源。     

Carbon Nanotubes:from Nanoscale Building Blocks to Macrostructures

1 Results Carbon nanotubes (CNTs) have fascinating properties.In order to use these novel one-dimensional structures for applications such as in nano-electronic,nano-mechanical and electrochemical energy storage device and as structural elements in various composites,the structure of nanotubes needs to be tailored and various architectures and macroscale assembles have to be configured using nanotube building blocks.Nanotube macrostructures are macroscopically organized groups of CNTs,which are expecte...     

广西建筑节能的初步探讨

从建筑节能的含义人手,结合广西的地理位置和气候特点以及国内外建筑节能发展的实践经验,对广西建筑节能的发展现状及其原因进行思考分析,探讨性地提出广西推进建筑节能的管理对策、规划与建筑设计对策、有待加强和改进的技术方面.     

A data model for regions with indeterminate boundaries

Most of spatial phenomena like natural vegetation units and land use areas constantly change over time and have uncertainty spatial extents. Till now, a considerable number of data models have been proposed for spatial objects with sharp boundaries as well as with indeterminate boundaries. However, they mainly concern space and time or space and fuzziness and not yet integrate them into a single unified framework. This paper introduces a formal definition of the conceptual fuzzy spatiotemporal data model, called FSTDM for fuzzy regions based on fuzzy set theory. We also contribute a method of manipulating queries with the presence of both temporal predicate and fuzzy spatial predicate in the condition clause efficiently. We then implement a prototype system.Through the experimental results, we prove that our work can be used to build a specialized system such as GIS, spatial database, and so on.     

模糊数空间上下确界的度量刻划

在模糊数空间上定义了一种新的度量，证明用这种度量可以对序有界的模糊序列的上、下确界进行刻划。     

带参模糊关系合成

该文对广义λ-并算子的性质作了进一步的研究,利用该算子对通常的模糊关系合成进行了推广,提出一种带参的模糊关系合成,并给出了它的若干性质。     

一些Fuzzy映象的重合度

本文讨论一些Fuzzy映象的重合度的存在性,得出了一些新的重合度定理.本文所得结果统一和发展了引文[5～9]中的许多重要结果.     

最大成键能原理及其应用

本文提出了最大成键能原理。由此出发，求出相应的最大成键能分子轨道及成键能，并得到了分子中各原子间的成键能，这些可以很好说明分子的成键和分子吸原子间键强度的性质，与实验事实吻合。同时，还可以得到分子的Ｍｕｌｌｉｋｅｎ＇ｓ布居数，与通常的ＬＣＡＯ－ＭＯ方法一致。     

A New Integrated Design Method Based on Fuzzy Matter-Element Optimization

This paper puts forward a new integrated design met ho d based on fuzzy matter-element optimization.On the based of analyzing the mod el of multi-objective fuzzy matter-element , the paper defines the m atter-element weightily and changes solving multi-objective fuzzy optimization into solving dependent function K(x) of the single-objective optimization according to the optimization criterion. The paper particularly describes the realization approach of GA process of multi -objective fuzzy matter-eleme...