运河双塔公共绿地

该项目所在的丰洲,位于东京繁华街区银座和御台场附近的海湾地区。为了符合东京都政府所制定的综合设计规范,我们将高层住宅的周围环境设计为开放式公共绿地。虽然地理位置优越,但由于该用地是填海后形成的,因此环境条件乏善可陈。在总体设计方面,我们将除住宅建筑以外的所有外部空间纳入设计范围,力图营造出城市森林的氛围。     

Conductive powder preparation and electrical properties of RuO2 thick film resistors

RuO₂ powders were prepared under different conditions to vary their properties. A study was made of the powder properties and electrical characteristics of thick film resistors (TFRs) containing an RuO₂ powder as a conducting component. Both crystalline size and specific surface area varied with calcination temperature but the change in the washing solution had different effects upon the two relationships. Variations in the total pore volume produce differences in the specific surface area at the same crystalline size. The resistivity of TFRs decreases and the temperature coefficient of resistance (TCR) becomes more positive with decreasing crystalline size. TFRs having conductive powder of higher specific surface area at the same crystalline size show lower resistivity and higher TCR values. This revised version was published online in July 2006 with corrections to the Cover Date.     

KINETIC STUDY of QUALITY LOSSES IN FROZEN SCALLOP MEATS

The rates of changes of texture, cook drip and free fatty acid during frozen storage of scallop meats at ?30, ?18, ?12, ?8 and ?5°C were studied. Both the physical and chemical changes were found to follow first order kinetics. the activation energies for toughness, cook drip and free fatty acid were 43.6, 69.3 and 37.9 kJ/mol, respectively.     

System identification via Fourier series

In this paper, the Fourier-series approach is extended to solve the problem of system identification. The algorithms presented are similar to those already derived for other orthogonal functions. Since most elements of the Fourier operational matrix are zero, there is a considerable saving in computing time and storage. In addition, the present method is simpler to use than others.     

Optimal control of promotion and recruitment in a hierarchically graded manpower system

The paper is concerned with the application of optimal control to manpower systems which are hierarchically well-defined according to grade and length of service, such as public or military organizations. A discrete bilinear model is ' developed for the manpower system with promotion and recruitment being the control variables. The decision criteria are to provide consistent promotion opportunity to the staff, to achieve the desired manpower structure, and to maintain a stationary training capacity during the planning horizon. Necessary conditions are derived by using the discrete maximum principle, and solved numerically for an example. To take into account variations in decision criteria, sensitivity analysis is considered and the new set of necessary conditions of variations which implies the attainability of a desirable manpower system.     

柯林斯公式的逆运算及其在波面重构中的应用

给出描述光波通过傍轴光学系统衍射的柯林斯公式及其逆运算表达式，然后将数字全息检测研究中的物平面及CCD探测平面视为ABCD系统的输入平面及输出平面，提出通过柯林斯公式的逆运算进行波面重构的一种计算方法。为便于该方法的实际应用，研究了参考光是球面波时全息图的频谱结构，并从理论上证明，全息图的频率空问中存在可以通过滤波器分离的物光及共轭物光的频谱。最后．通过理论模拟及实验研究证明了使用柯林斯公式的逆运算重构波面的可能性。     

Fuzzy inference systems with no any rule base and linearly parameter growth

A class of new fuzzy inference systems New-FISs is presented. Compared with the standard fuzzy system, New-FIS is still a tmiversal approximator and has no fuzzy rule base and linearly parameter growth. Thus, it effectively overcomes the second “curse of dimensionahty” : there is an exponential growth in the number of parameters of a fuzzy system as the numberof input variables, resulting in surprisingly reduced computational complexity and being especially suitable for applications, where the complexity is of the first importance with respect to the approximation accuracy.     

智能功率模块(SPM)的尖端技术水平

在消费电器和一般工业应用的低功率电机驱动领域中,采用转模(transfer-molded)封装的智能功率模块是目前的发展趋势。飞兆半导体的智能功率模块(SPM,Smart Power Module)涵盖0.05至7kW的功率范围,具有紧凑性、功能性、可靠性,以及成本效益特性,已建立起市场的主导地位。通过使用铜直接键合(DBC)基底的转模封装,不仅能够提高功率密度,并且在单一封装中便可实现三相逆变器、SRM驱动器和功率因数校正等各种电路拓扑。此外,先进的应用需求匹配功率芯片和驱动器IC改善了系统的性能和可靠性。本文将从器件、封装以及系统配置的角度介绍在SPM中实现的尖端技术。     

造孔剂法制备孔隙率可控的多孔镍钛合金

用常规粉末冶金烧结法结合造孔剂技术制备了多孔镍钛形状记忆合金.研究结果表明,孔隙特征主要取决于所用造孔剂的尺寸和形貌,而孔隙率可以通过加入造孔剂的含量来调控;所制备合金的主要成分是B2相和B19'相的NiTi,在经高温固溶处理后仍有极少量的Ti2Ni,Ni3Ti和Ni4Ti3等杂质相存在,而且合金杂质相的含量随造孔剂加入量的增加而相应提高.对合金的相变热分析表明,在从高温降至低温过程中多孔镍钛发生特殊的三阶段相变,这主要是由合金成分和相组成在晶界的不均匀造成的.最后,研究表明相变对多孔镍钛合金的阻尼性能(内耗)有独特的影响,而孔隙率对阻尼的影响则不明显.