数据采集与处理系统芯片-ADuC845及应用

随着嵌入式系统的发展，模拟信号处理单元与MCU正逐步融为一体，数据采集与处理系统芯片-ADuC845是这一融合的具体体现和产物。现对ADI公司的ADuC845芯片及其特性、应用作详细介绍。     

横掠椭圆钉头管换热及流阻特性的实验研究

利用热质比拟原理及萘升华技术 ,对空气横掠椭圆钉头管时的对流换热及流阻特性进行了研究。对管面上及椭圆钉头上的对流换热系数分别进行了测量 ,通过计算得到总体换热系数及流动阻力的实验关联式。实验结果表明 ,椭圆钉头管的对流换热系数高于光管 ,在实验规定的雷诺数范围内 ,椭圆钉头管的流阻小于圆形钉头管 ,有时也低于光管     

类比法在《C语言程序设计》教学中的运用

教学中方法得当,事半功倍。该文重点阐述了类比法在《C语言程序设计》教学过程中的应用,以函数实例介绍了方法的展开过程,使得教学中的抽象概念具体化,收到良好的教学效果。     

Pattern Analysis and Analogy in Shogi: Predicting Shogi Moves from Prior Experience

As a research paradigm, pattern analysis has been shown to be an effective tool for analyzing complex game situations in both chess and go. We extend the prior pattern analysis research in chess to the domain of shogi. Shogi is computationally more complex than chess and should realize greater benefits than the chess domain from pattern recognition and pattern exploitation research. The IAM program, which has accurately predicted up to 28% of the moves for a specific chess player, is redesigned to operate in the domain of shogi. Results similar to those achieved for the domain of chess are achieved in shogi. Received 25 February 1999 / Revised 1 October 1999 / Accepted in revised form 2 February 2000     

浅谈职高C语言函数的教学

函数是C语言程序设计的重点和难点。本文主要介绍在教学如何使学生学得轻松、学得扎实、用得灵活,如何培养学生严谨的编程作风和相互合作的团队意识。     

A naphthalene sublimation study on heat/mass transfer for flow over a flat plate

It is important to completely understand heat/mass transfer from a flat plate because it is a basic element of heat/mass transfer. In the present study, local heat/mass transfer coefficient is obtained for two flow conditions to investigate the effect of boundary layer using the naphthalene sublimation technique. Obtained local heat/mass transfer coefficient is converted to dimensionless parameters such as Sherwood number, Stanton number and Colburnj-factor. These also are compared with correlations of laminar and turbulent heat/mass transfer from a flat plate. According to experimental results, local Sherwood number and local Stanton number are in much better agreement with the correlation of turbulent region rather than laminar region, which means analogy between heat/mass transfer and momentum transfer is more suitable for turbulent boundary layer. But average Sherwood number and average Colburnj-factor representing analogy between heat/mass transfer and momentum transfer are consistent with the correlation of laminar boundary layer as well as turbulent boundary layer.     

基于功能-行为-结构情景设计的未预见发现构造模型驱动产品创新

分析描述性设计和情景设计的两种方法。未预见发现(Unexpected discovery,UXD)是一种驱动产品创新的科学认知设计过程。在情景类比设计过程中,通过寻找UXD来实现产品创新设计。建立功能—行为—结构(Function-behaviour-structure,FBS)模型和UXD分析模块,将情景设计与所建立的设计模块有机地结合在一起,实现产品的创新。介绍情景设计与非情景设计对FBS和UXD的影响。水龙头与房门的情景类比实例,验证了情景设计用于产品创新是行之有效的。     

类比法计算天然气可采储量

在动态资料缺乏的情况下,应用类比法求采收率是一种简便、快速的计算方法。通过选取合适的参数以及适当的方法,依然可以获得理想的结果。预测油田原始可采储量方法分为动态法和静态法,动态法包括驱油效率法、产量递减法、水驱曲线法等;静态法包括类比法、相关经验公式法、地质综合评价法、经验值法等。其中类比法是一种相对简单而且实用的逻辑推理方法。以喇嘛甸油田萨零组北块为例,运用类比法估算天然气原始可采储量,并通过经验值法进行验证。     

The limits of the analogy between boiling and gas evolution at electrodes

The processes of gas evolution at electrodes in electrochemical reactors and of boiling belong to strongly different fields in chemical engineering and for a long time were investigated separately. Nonetheless, they exhibit numerous common features. The analogies of both processes have been made use of giving rise to transfer findings obtained in one field to the other one. However, the analogy is limited, and the limitations have not yet attracted sufficient interest. A brief review on the analogies is given. The discrepancies in the fields of initial nucleation, the upper bound of operation and the different mechanisms controlling the transport of substance and of heat in both processes are discussed.     

建构 现实性的戏剧与建筑戏剧的真相

文章讨论了建构与技术、与人的身体的关系,揭示了现代主义以来建构概念所面临的威胁。通过对建构概念历史发展的回顾,作者指出建构概念本身亦应随时代变化而加以充实,现代主义对自由的追求在本质上与古老的建构概念并不矛盾,建构所展现的真实是一种表象,是对真实的诠释,是转译而非简单的赤裸裸的直陈。