复式河道漫滩水流计算方法研究

对复式顺直河道和复式游荡型河道中漫滩洪水的计算方法进行了研究.其中，对复式顺直河道，从Shiono-Knight方法出发，将二次流项归并入雷诺切应力项，并将主槽和滩地的流速分布曲线直接相接，推导出一套不需联立求解系数方程组的漫滩水流流速和床面切应力分布的计算公式以及床面平均切应力的解析计算公式；对复式游荡型河道，建立了一种新的上层水流计算方法.文中的计算结果与前人的实验资料基本一致，初步表明文中的方法是合理的.     

分户计量供暖节能住宅户型修正研究

针对多层住宅中不同户型在耗热量上的差异，引入户型体形系数修正各户的计量用热量，以计算和实测方法分析了一栋节能住宅不同围护结构户型的能耗特点，发现山墙、屋面、地面造成的不同户型之间的耗热量差别小于传统建筑；使用面积大的住户山墙造成的户型间耗热量差别小于使用面积小的住户。     

Texture Changes During the Ripening of Port Salut Argentino Cheese in 2 Sampling Zones

ABSTRACT: Texture changes during ripening of Port Salut Argentino cheese for different sampling zones were studied. Compression relaxation tests were performed and results were analyzed using both Maxwellian and Peleg's models. Elastic equilibrium modulus obtained from the Maxwellian model decreased from 1.22 to 0.11 10⁴Pa during ripening. The constants derived from Peleg's model, k₁ and k₂, diminished with ripening time from 1.18 to 0.71 min and from 1.27 to 1.12, respectively. Asymptotic equilibrium modulus from Peleg's model decreased from 0.95 to 0.07 10⁴Pa during ripening. Rate parameters derived from a 1st order kinetics applied to both equilibrium moduli showed that the decrease was faster in the external zone (0.0846 d⁻¹) than in the central zone (0.0368 d⁻¹). The correlation between equilibrium moduli, salt concentration, moisture content, and maturation indexes was obtained with a determination coefficient of 0.76.     

SHAPE GENERALIZED ISOTHERMAL EFFECTIVENESS FACTOR FOR FIRST-ORDER KINETICS

A generalized effectiveness factor equation (Eq. (32)), in terms of modified Bessel functions, is derived for a catalyst pellet of arbitrary shape. The derivation is based on utilizing an appropriate one-dimensional approximation for the Laplacian in an arbitrary shaped body subjected to a uniform external concentration field. The comparison of the result with the available expressions for various geometries is highly satisfactory. It unifies the expressions for the three fundamental shapes, viz., infinite slab, infinite cylinder and sphere, and also compares very well with the exact solutions for finite shapes over the entire range of the Thiele modulus.     

环境影响及计算机设备可靠性

和所有设备一样，计算机设备也是在一定环境中工作的，各种环境因素无时不对设备产生影响。要使计算机设备在各种环境中保持良好的性能，必须了解各种环境对计算机设备影响的机理和过程，分析在环境因素中那些因素是影响计算机设备的主要因素及其力度、频率、周期等，以便采取措施保护计算机设备正常工作。简要介绍除温度外，各种环境因素对计算机设备的影响。     

Electrical and growth characteristics of Au/Al0.15Ga0.85N:Si structures with various Si incorporations

We have investigated the growth characteristics of n-Al_0.15Ga_0.85N:Si/GaN and the electronic properties of Au/n-Al_0.15Ga_0.85N:Si diode structures grown by metal-organic chemical vapor deposition (MOCVD) with various Si incorporations. The Al_0.15Ga_0.85N:Si layers were grown on undoped GaN/sapphire (0001) epitaxial layers in a horizontal MOCVD reactor at the reduced pressure of 300 torr. The mirrorlike surface, free of defects, such as cracks or hillocks, can be seen in the undoped Al_0.15Ga_0.85N epilayer, which was grown without any intentional flow of SiH₄. However, many cracks are observed in the n-Al_0.15Ga_0.85N:Si, which was grown with Si incorporation above 1.0 nmol/min. While Au/n-Al_0.15Ga_0.85N:Si diodes having low incorporation of Si showed retively good rectifying behavior, the samples having high Si incorporation exhibited leaky current-voltage (I-V) behavior. Particularly, the Au/n-Al_0.15Ga_0.85N:Si structure grown with Si incorporation above 1.0 nmol/min cannot be used for electrical rectification. Both added tunneling components and thermionic emission influence the current transport at the Au/n-Al_0.15Ga_0.85N:Si barrier when Si incorporation becomes higher.     

合成氨中置锅炉的修复

本文在分析中置锅炉失效原因的基础上，提出了详细的修复措施，为类似情况的设备修复提供了借鉴。     

分布式光纤喇曼放大技术及其在WDM系统中的应用

介绍了分布式光纤喇曼放大技术的原理、特点和应用 ,并从受此影响的 WDM传输系统的信噪比、噪声指数和品质因数三个方面讨论了光纤喇曼放大技术在提升光纤通信系统性能方面的重要作用。     

蓝疆号起重铺管船托管架拖挂结构的质量及进度控制

蓝疆号起重铺管船是一艘集起重、管道铺设于一身的多功能新型船舶,在铺管作业系统中,设有一连接船体与托管架的独立结构——拖挂结构。介绍这个由特厚高强钢板组焊而成的结构在制造过程和现场施工中的质量控制及进度控制,供从事工程管理人员参考。     

心理因素对分析数据的影响及预防措施

研究了分析人员的心理状态、情绪变化、内在动机等对分析数据的影响,提出了具体的对策和预防措施