红山嘴油田石炭系火山岩油藏岩相展布及成藏规律研究

本文以红山嘴油田石炭系火山岩油藏为例，系统总结了火山岩岩性及电性特征、岩性识别及岩相展布特征、储层特征及成岩作用、油气藏特征及成藏机理等方面内容及研究方法。以期为推动我国火山岩油气藏的勘探进程，丰富石油地质理论。     

混沌及高聚物的混沌运动

本文首先介绍了混沌理论的发展及混沌运动的特征,随后在此基础上研究了高聚物分子链结构、构象、结晶过程及粘流行为的混沌性质,并列举出混沌理论在高分子领域的应用。     

界面服务系统的审美体验特征研究与实践

目的探讨界面服务系统的审美体验特征与其设计实践,为基于界面的服务设计提供审美层面的方法论指导。方法基于实用主义美学理论与交互体验审美体验特征的研究,结合界面服务系统特点,分析界面服务系统的审美体验特征,并将理论研究应用到设计实践中。结论定义了界面服务系统审美体验的特征,并通过应用实例初步验证了研究的有效性及可行性。     

面向对象的零件特征信息动态结构——面向对象的CAPP系统结构研究之一

用面向对象(OO)理论对CAPP的体系结构进行了研究和探讨。本文为第一部分,对OO理论、特点和建模技术做了简要介绍,重点介绍零件对象信息总体结构和基于特征的特征类库的分类层次;阐述了对象内部结构、零件信息的动态建立过程及C++语言的实现。     

基于ObjectARX实现特征建模的方法

为了满足中小企业实施CAD/CAM集成过程中对产品特征模型的需要,基于特征设计的建模理论,建立了特征的信息模型。研究了在AutoCAD系统上实现特征建模的方法,阐述了特征的参数输入、定位、生成及存储等特征建模的主要步骤。以齿轮泵泵体特征建模为例,证明了基于ObjectARX实现特征建模的可行性,为中小企业实施CAD/CAM集成提供了一种简单而有效的方法。     

质量改进与顾客互动机制转换子模型的建立

基于模糊理论和矩阵转换思想,分别建立了在顾客需求及需求权重明确和不明确两种条件下如何将顾客需求转换为工程特征的转换子模型,以及将工程特征转换为顾客需求的转换子模型。     

刚体碰撞约束柔性体局部撞击载荷特征分析

目的 掌握碰撞局部撞击载荷及其特征,为产品安全防护设计、碰撞响应分析与评估提供理论基础。方法 抽象刚体碰撞柔性体的共性特征,分别将被撞击柔性体的碰撞局部刚度特性和整体结构效应表征为弹簧力-位移关系,建立系统的二自由度刚-柔碰撞动力学模型,应用数值方法系统分析刚柔碰撞局部撞击载荷的特征及不同因素的影响。结果 获得了刚体初始碰撞速度、柔性体碰撞局部刚度特性与整体结构效应等主要因素对局部撞击载荷时程、冲量、峰值和脉宽等撞击载荷特征的影响规律。结论 深化了刚-柔碰撞局部撞击载荷的认知,为防护结构设计提供了理论基础。     

面向对象的零件特征信息动态结构：面向对象的CAPP系统结构…

用面向对象理论对ＣＡＰＰ的体系结构进行了研究和探讨。本文为第一部分，对ＯＯ理论、特点和建模技术做了简要介绍，重要介绍零件对象信息总体结构和基于特征的特征类库的分类层次；阐述了对象内部结构、零件信息的动态建立过程及Ｃ＋＋语言的实现。     

基于非关联流动法则的滑移线场及上限法研究

当前岩土材料的滑移线场理论及上限法中都广泛采用经典塑性理论中的关联流动法则,由此得出应力特征线与速度滑移线一致的结论。而试验得知,岩土材料并不服从关联流动法则,因而应力特征线与速度滑移线不可能重合。文章分析了基于关联流动法则的滑移线场及上限法中存在的问题,根据广义塑性理论推导了基于非关联流动法则的滑移线场及上限法,消除了现行滑移线场理论及上限法理论中的种种矛盾。     

突变理论在矿坑底板突水中的应用

采用突变理论的方法，本文讨论了系统不稳定点的特征及对系统的影响，推导出了系统在平衡状态下临界点的方程。以煤矿底板系统突水为例，导出了矿坑底板系统失稳时受力的临界值及失稳时底板变形量和能量释放的表达式，为矿山底板突水预报提供了新的理论方法。     

基于MDT特征的参数化实体造型研究

阐述了ＭＤＴ特征的基本概念,对ＭＤＴ特征造型方法进行了详细的讨论,总结出了ＭＤＴ特征造型的一般流程．     

理化检验数据库管理分析系统

介绍了建立理化检验数据库管理系统的思路，建库过程和程序研制特点，以及在本单位的应用情况。     

基于UG平台的截面特征曲线全局约束优化研究

截面曲线是曲面建模过程中的重要特征,将截面特征曲线重建技术与正向设计技术相结合是实现复杂特征曲面模型重建的重要方法。针对这一问题提出了一种基于UG草图的截面特征曲线全局约束优化技术,并对实现该方法的约束表达、全局约束优化模型的建立及求解、基于UG平台的算法实现等关键技术进行了深入研究。应用实例表明,基于UG的截面特征曲线全局约束优化方法可以得到满足约束条件下的与数据点逼近的最优曲线,基于该曲线可以快速、准确地重建出具有复杂特征的曲面模型。     

Profile Control in Silicon Nanostructures Using Fluorine-Enhanced Oxide Passivation

Nanostructures with controllable geometries are increasingly needed for mechanosensor applications due to their superior capabilities in measuring minute mechanical forces at small scales. Previous nanofabrication technologies are deficient in creating such structures due to high cost, complicated process and poor geometric control. In this paper, we introduce an innovative use of fluorine enhanced oxidation to realize a segment by segment sidewall control strategy for creating silicon nanostructures. This method is based on fluorine reactive ion etching, where the rich amount of fluorine species accumulated on the surface are utilized to enhance surface oxidation during an additional oxygen exposure. The experimental results showed good repeatability. The characteristic feature size of the resulting nanostructures is about 200 nm. The minimum feature size goes down to 50 nm. This method requires minimal use of equipment, and demonstrates good control of sidewall profiles. It thus has technical and economic significance in development of functional nanomechanosensors, which are potent for quantitative mechanical sensing and actuating at small scales.     

ActiveX技术在组态软件中的应用研究

文章介绍了ActiveX技术的特点及其在工业监控系统中的应用，着重讲述了创建ActiveX控件的在工控软件中使用ActiveX控件的方法，并提出了加强组态软件功能的思想。     

Automated feature validation for creating/editing feature-based component data models

In a feature-based design system, it is necessary to check if a feature is valid (i.e. dimensions and class are proper) before adding it to the component model, and to detect if there will be any changes in the existing features which interact with it. The same applies to an existing feature to be modified and its interacting features when editing a feature model. This ensures a precise feature model of component design for the downstream applications. It is a commendable goal to automate the process of feature validation, which in turn increases the system's capability and intelligence, thus reducing the requirement on the designer's effort. This paper presents a Boolean operation-based systematic methodology of automating feature validation by checking feature dimensions and class, respectively. It briefly introduces a feature-based component data model (FBCDM) suitable for process planning and NC programming, and then discusses in detail the problem of feature validation and the algorithms of feature validation for creating/editing FBCDMs.     

Compound feature recognition by web grammar parsing

A method is presented to automatically recognize compound features using web grammar parsing on a solid model graph. A compound feature is a class of regional shapes with a variable topology. Examples of compound features are connected features, which contain a variable number of simple features connected together, and intersecting features, which intersect one another creating different shapes from the original simple features conceived. The simple features are regional shapes related to preestablished application processes. A solid object, stored as a boundary representation, is transformed to a web representation (a node-labeled graph) which is the input of a web parsing system for feature recognition. And a compound feature is described as a web grammar. From the web representation of an object shape, the compound feature recognition can be accomplished by parsing the web with the web grammar. The application of a web grammar enables a user to define a compound feature and makes feature recognition a formalized process for subsequent recognition.     

rystalline structures create opportunity for molecular filters

This brief feature provides details of a new way of making molecular sieves — crystals with holes so small they can discriminate between large and small molecules. The underlying research, which is being done in the USA, may pave the way to creating a new kind of membrane that can separate a mixture of gases.     

基于边界表示的拔模算法及其应用

拔模操作是三维几何造型系统中给实体创建倾斜面特征的有效方法。笔者以商业造型软件 TiGems 为平台,提出了一个基于边界表示的拔模算法。针对现有拔模算法的不足,改进了拔模操作中边的计算方法,提高了算法的效率;增加了判断并消除形体自交的功能,提高了算法的鲁棒性。笔者将本文的算法应用到草图的倾斜拉伸操作中,取得了不错的效果。