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In order to provide an overall understanding on the basic theory and previous researches of wood chemical rheology, the author discusses some respects on the basis of the common knowledge of deformation and flow, which served as the foundation of wood chemical rheology. These respects include the results by Stein and Tobolsky, such as the correlation between the change of polymolecular structure and stress relaxation, the classification of physical rheology and chemical rheology, the difference between the research on wood chemical rheology and other methods, as well as a kind of non\|continuous method to measure stress relaxation proposed by Tobolsky \%et al.

为了使国内木材科学界对木材的化学流变学的基础理论及其研究概况有一个比较全面的了解,作者在归纳了作为建立木材的化学流变学基础的、关于变形和流动一般理论的基础上,就Stein 和Tobolsky基于高分子构造变化与应力松弛之间的对应关系,关于物理流变学和化学流变学的分类,化学流变学研究与其他方法的不同之处,Tobolsky等关于不连续应力松弛测定方法等内容做了比较详细系统的介绍。

Base on the thinking on the above questions and the results from demestic and foreign relavent research, this paper makes an investigation into the leisure centers of research based scienced parkes, discussing their categories, space distribution as well as charateristcs and giving out tentatively the methodolgy of disigning and principle of assessing. Taking those theories conbined with view points from environmental psycology theory, field investigation on the development of the leisure centers of the software park of Wuhan Photoelectron Valley is studied to accomplish the deduction.

在对这些问题思考的基础上,结合国内外相关研究领域的成果,本文对研发型高科技园办公区休闲空间的发展状况的进行了叙述总结,讨论了它的分类、空间分布的及特点,尝试性地提出其设计方法及评价原则,并结合环境心理学的分析方法,运用上述理论对光谷软件园办公区休闲空间发展的具体情况进行了调查研究,完成了对本文整理和提出的理论的演绎。

The geology research of carbonate reservoirs in Ordovician of Tahe oilfield showed that many large dissolved vugs and fractures were developed. The spread of the reservoir take on a very heterogeneous state. And the typical fractured-vuggy reservoirs was formed. According to the combination of the various spaces, the formation was divided into vuggy formation, fractured-vuggy formation and fractured formation. The research showed that development of the vug is relevant to the its position on the structure, the fractures, the water surface and the weathering surface. Multi-phase charge and recharge of the oil in the reservoirs resulted in the complexity of the fluid distribution. So the"Bottle Model"was brought forward to explain the movement of the water-oil contact. The special storage space and the complex fluid distribution lead to the unstability of the production and the complexity of the water cut. In order to explain the characteristic of the fracture-vug unit was brought forward and the basic principle and method of the partition of the fracture-vug unit was formed. The classification and evaluation of the units were performed according the reserve and energy. Based on the research of geology characteristic and the fluid flow in the reservoir the comprehensive numerical simulation plan of the fractured-vuggy reservoirs were established. Through the selection of the simulation unit, fluid flow type and parameter equivalent the triple media reservoir simulation model was established. Considering the practical application the model was resolved by the DKR decomposition conjugate grads method. Based on the fine reservoir description of Dsitrict IV of the Tahe oilfield the various space type were classified and combined together. The geology model of Unit S48 was constructed. Two typical single well model was established according to the geology and the dynamic phenomena. Finally the single well model and the Unit S48 were simulated by the triple media reservoir simulator. Via the local grid refinement and coarsening in the simulation good matchs were gained. Based on the results of the simulation the reserve distribution, percent of reserve produced in various space and the natural energy were analyzed. The fluid was storaged in the fractures and vugs mostly and more than 90% the produced oil came from the systems. The energy belonged to the active one. The results of simulation accorded with the fact and showed the validity and practicability the research and the simulator.

塔河油田奥陶系碳酸盐岩油藏的地质研究表明,其储层中发育着很多大型的溶蚀洞、缝,储层的平面展布呈现出极度的非均质性,形成了典型的缝洞型碳酸盐岩油藏,根据各种孔隙介质在储层中的组合,将储层分为了溶洞型、裂缝-溶洞型和裂缝型三类;研究表明溶洞储层的发育和构造位置、裂缝的发育、潜水面和风化面的位置等因素有关;多期充注的油气成藏模式导致了流体复杂的赋存状态,由此提出了所谓的&瓶子模型&,解释生产过程中油水界面的变化;特殊的储集空间类型和流体分布特征导致油田在开发过程中表现出很大的不确定性和含水变化的复杂性,为了合理的解释油气田开发过程中的动态特征,提出了&缝洞单元&的概念,并制定了&缝洞单元&纵横向划分的基本原则和依据及划分方法,并对&缝洞单元&进行了分类和评价;基于地质特征和流体在其中流动规律的研究,提出了缝洞型碳酸盐岩油藏的数值模拟综合解决方案,通过模拟单元的选择、流动类型和参数的等效,建立了三重介质油藏三维三相数值模拟模型,采用不完全LU分解预处理共轭梯度法进行了求解;在塔河油田4区精细油藏描述的基础上,将各种类型的孔隙空间进行了归类组合,建立了S48单元的地质模型;通过对油井生产动态进行分析研究,建立了两类和油井地质、生产动态相对应的单井模型;最后应用三重介质油藏数值模拟软件对单井模型和S48单元进行了数值模拟,通过局部加密和粗化等技术模拟流体流动规律,取得了很好的拟合效果;结合数值模拟结果,分析了各种介质中的储量分布、储量产出的百分比以及地层的能量,认为塔河油田缝洞型油藏中流体绝大多数储集于缝洞系统之中,所产出流体90%以上也来自于缝洞系统,其底水能量属于较充足的类型;模拟结果和油田实际情况符合较好,说明了地质研究和油藏数值模拟研究的正确性。

This paper's work is trying to present a more efficient method to locate the agent in distributed networks on the basis of pioneers' researches, and assess the performance of this method.This paper begins its discussion with agent technology's background and basic conceptions, characteristics, and presents the researched problem, that is, researching new agent locating method; then introduces several traditional locating methods: brute force searching, database method and path proxies, and analyses their features and locating efficiency. For describing the agent locating better, this paper formalizes the agent, presents a proper definition, and abstracts agent's migration process, proposes a metaprocess concept and decompounds migration process with it.

本文首先介绍了代理技术的产生背景以及基本概念、性质,提出了需要解决的问题,即对新的代理定位的方法的研究;然后总结介绍了前人文献中的一些代理定位方法:穷举搜索法、位置数据库法和迁移指针法,并分析了这些算法的优缺点和代理定位效率;为了更准确的描述代理定位,本文对代理进行了形式化,确定了一种适合的代理定义,并对它的性质给予形式说明;在此基础上抽象出代理迁移的本质,根据它对资源的控制对迁移类型进行分类;提出元过程概念,并分解表示定位过程,并介绍了过程时间连续性。

Database of physical and chemical properties for solid wastes were constructed through investigation for single typical component and their mixture of solid wastes. The particulate trajectory model and heat transfer model were developed, based on the studies of Characteristics of solid wastes movement and heat mass transfer in rotary kiln. Pyrolysis experiments of solid wastes in lab and pilot scale rotary kiln pyrolyzers were performed. Mechanism of pyrolysis for typical solid wastes was analyzed. The characteristics of pyrolytic products, such as physical and chemical properties, composition and combustibility, etc, were investigated. A neural network model for the prediction of yields and properties of pyrolysis products was developed. Then, the potential applications of pyrolytic products and the substitution of pyrolytic fuels for corresponding commercial furls were investigated. The optimization of energy recovery and utilization for different wastes through pyrolysis was analyzed.

通过对典型固体废物组分及其混合物特性的分析,建立了固体废物的化学特性分析数据库,并据此进行了物理分类;对固体废物在回转窑内的运动和传热特性进行了研究,建立了固体物料的随机颗粒滚动理论模型和传热模型;在小型和中试回转式热解炉上进行了实验;对各种典型固体废物在回转窑内的热解机理和主要热解产物的性质进行了研究;利用神经网络等方法建立了各典型固体废物的热解产物的产率及特性的数学预测模型;对固体废物热解产物的物性、成分、燃烧特性等开展了研究,分析了其与现有商业燃料匹配的可能性;对热解产物的多种应用性能进行了研究,对不同废物热解中的能源回收和利用进行了优化分析。

As feature extraction acts an important role in pattern recognition system, we propose three novel feature extraction methods for HCCR: a、Two structural feature extraction methods, Stroke Cross Counting Features and Peripheral Features are studied. According to the characteristics of Chinese handwriting samples, we extend the SCCF and PF respectively to weighted elastic SCCF and weighted elastic PF. Experiments show that the modified feature extraction approaches are better than original approaches. b、A new statistical feature extraction method——Elastic Meshing Directional Decomposition Feature extraction is proposed. According to the stroke statistical properties of Chinese character, we first decompose a handwritten character pattern into four directional subpatterns. Then a set of elastic meshes are applied to each of the four subpatterns respectively to extract the pixel distribution features.

统计识别方法:利用统计模式识别的经典方法——Bayes分类方法来进行汉字识别的研究,特征提取是统计模式识别的关键,本文着重围绕手写体汉字的特征分析和提取方法进行了研究,提出了三种特征提取的新方法: a、两种改进的结构特征提取方法:在笔划密度特征和外围特征的基础上,结合手写体汉字的特点,提出了加权非均匀笔划密度特征、加权非均匀外围特征的特征提取新方案; b、一种新的统计特征提取方法——弹性网格方向分解特征,根据汉字方块字的特点及笔划分布的统计特征,对手写体汉字进行横竖撇捺四方向的分解,并利用一系列的弹性网格对汉字分解后各分量的象素进行统计而提取特征,实验证明该特征提取方法用来进行手写体汉字识别是十分可行和有效的。

An automatic update system based on semantic web techniques to implement the drug-law checking automatically is proposed in this thesis. The design concept is to use OWL as the knowledge model. To represent the drug law knowledge, we view a drug law as a class of medical status, and we can use classification to implement the decision of drug use legality. This approach simplifies the design of inference engine. The OWL supports the syntax of class inherences, so it can reach the cognitive economy and shorten the drug laws encoding length. The OWL syntax can represent most drug laws style, so the system can just use one document and one inference engine to handle all drug laws rules.

本文导入语意网技术提出一法规检核同步化系统,来实现药品检核规则自动更新的功能,其主要设计理念为以语意网的OWL模型来实作法规检核系统,在法规的知识表徵上,系统将所有的药品规则视为医疗状态的类别,因此判别用药的合法性,便可使用分类运算达成,这简化了推理机的设计;利用OWL支援类别继承的语意,故能形成认知经济性效应,缩小医疗法规机器编码长度;最后OWL的语法能表示大部份规则型态,使得系统可以使用一个文件档,一种推理机模型便能表示所有的法规。

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推荐网络例句

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。