纳米氧化镍在超大容量电容器中的应用

用络合沉淀法制得Ni(OH)2，经过加热分解得纳米NiO粉末（粒径约30nm)。用该粉末作为活性物质制得的电极具有90－110F／g的比容量。考察了电极的比容量与电解液的浓度、工作电位范围的关系，并讨论了其储存电荷的机理。     

工作辊弯辊力对热轧带钢凸度的影响

为了建立高精度的热轧带钢凸度计算数学模型，采用影响函数法开发了四辊轧机热轧带钢凸度影响率计算软件；系统地研究了工作辊弯辊力对带钢凸度的影响规律。得出了工作辊弯辊力影响率基本值和工作辊直径、单位宽度轧制力、压下量对弯辊力影响率修正指数的6次项拟合系数，建立了高精度工作辊弯辊力影响率的计算模型。为优化板形控制参数提供了理论依据。     

“物体-地球”系统在地球参照系中的力学规律讨论

论析了在地球参照系中对“物体—地球”系统动量守恒定律不能成立而功能原理却能适用的原因。     

Culturable and Total Fungi in Dust Accumulated in Air Ducts in Single-Family Houses

Abstract Fungal spore content in dust accumulated in air ducts was investigated in 24 mechanically ventilated single-family houses of which 15 had also a central air heating system. Dust was collected from the ducts simultaneously with cleaning of the ventilation systems. Besides spore concentrations and flora of culturable fungi, total fungal spore concentrations were determined in dust samples by the aqueous two-phase technique and spore counting with epifluorescence microscopy. Culturable spore concentrations in the dust varied from 10⁴ to 10⁷ CFU/g and total spore concentrations from 107 to 108 spores/g. Total spore concentrations in the duct dust were significantly higher in the air heated houses than in the other mechanically ventilated houses. The difference resulted mainly from a higher proportion of recirculation air and a higher age of the air heated houses. Cladosporium, Penicillium, Aspergillus and yeasts consisted of >90% of fungal flora in the dust. Although total spore concentrations were at the same level both in the exhaust and in the supply ducts in both types of house, culturable fungal spore concentrations were slightly higher in the exhaust ducts than in the supply ducts. The proportion of culturable spores was <5% of total spores in dust accumulated in the ducts.     

Adaptive control for a radio‐controlled helicopter in a vertical flying stand

In this paper, we focus on the design and implementation of a controller for a two degree‐of‐freedom system. This system is composed of a small‐scale helicopter which is mounted on a vertical platform. The model is based on Lagrangian formulation and the controller is obtained by classical pole‐placement techniques for the yaw dynamics and adaptive pole‐placement for the altitude dynamics. Experimental results show the performance of such a controller. Copyright © 2004 John Wiley & Sons, Ltd.     

耐候钢05CuPCrNi冷加工性能研究

研究了耐候钢05CuPCrNi冷轧板的硬化曲线，变形抗力模型，退火后力学性能并给出了理论再结晶温度初步测试结果。结果表明1．6mm与2．0mm厚冷轧板在600℃退火0．5h后其力学性能满足该钢种的技术标准要求，1．6mm厚冷轧板理论再结晶开始温度为510－520℃，2.0mm厚冷轧板为520－530℃。     

Structural contingency theory and individual differences: Examination of external and internal person-team fit.

This article develops and tests a structurally based, integrated theory of person-team fit. The theory developed is an extension of structural contingency theory and considers issues of external fit simultaneously with its examination of internal fit at the team level. Results from 80 teams working on an interdependent team task indicate that divisional structures demand high levels of cognitive ability on the part of teammembers. However, the advantages of high cognitive ability in divisional structures are neutralized when there is poor external fit between the structure and the environment. Instead, emotional stability becomes a critical factor among teammembers when a divisional structure is out of alignment with its environment. Individual differences seem to play little or no role in functional structures, regardless of the degree of external fit. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Are Trends in Work and Health Conditions Interrelated? A Study of Swedish Hospital Employees in the 1990s.

[Correction Notice: An erratum for this article was reported in Vol 14(1) of Journal of Occupational Health Psychology (see record 2008-19186-009). This particular study was based upon a unique database (the Springlife database), with repeated questionnaire self-reports from hospital staff in the ?rebro Regional Hospital in Sweden regarding work environment and mental health in the years 1994, 1995, 1997, 1999, and 2001. The Springlife database was referred to in the text and references of the article noted above, but it should have been more clearly acknowledged. Herewith the authors want to make this late acknowledgement. The database actually started in the fall of 1993 with the regional hospital's physicians and continued with all hospital staff during the spring 1994.] Swedish hospital personnel were followed over an 8-year period, characterized by staff redundancies and restructuring processes. Self-rated and administrative data sets from 1994 to 2001 allowed for studying long-term consequences of organizational instability for staff health and work conditions. The aim was to identify, on a work-unit level, trends in work and health conditions and their interdependence. Regression analysis showed a downward trend in mental health and an upward trend in long-term sick leave. Increasing trends of work demands were accompanied by deteriorating mental health, and decreasing time to plan work showed the strongest association with increasing long-term sick leave. Job satisfaction and support were decreasing. A stable short-term sick leave rate over years related to lack of support. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

机器人灵活性表示及冶钢-弧焊-Ⅰ型工业机器人工作空间灵活度分析

本文提出了用机器人操作器末杆的自转角灵活度及两个互相垂直的主截面内的灵活度的组合,来表示机器人对给定工作点的灵活性的方法。这种方法直观、方便,易于求解和应用.用它研究具有结构条件限制的机器人操作器工作空间灵活度时,发现在工作空间里,存在有不同灵活度的区域,曲线或曲面.本文还特别提出了工具(夹具)的预置位姿的概念,并以 5R 操作器为例,充分证明了预置位姿的改变.可以在操作器灵活度不变的条件下大大改善机器人的工作可能性。     

"Not Another Meeting!" Are Meeting Time Demands Related to Employee Well-Being?

Using an interruptions framework, this article proposes and tests a set of hypotheses concerning the relationship of meeting time demands with job attitudes and well-being (JAWB). Two Internet surveys were administered to employees who worked 35 hr or more per week. Study 1 examined prescheduled meetings attended in a typical week (N=676), whereas Study 2 investigated prescheduled meetings attended during the current day (N=304). As proposed, the relationship between meeting time demands and JAWB was moderated by task interdependence, meeting experience quality, and accomplishment striving. However, results were somewhat dependent on the time frame of a study and the operational definition used for meeting time demands. Furthermore, perceived meeting effectiveness was found to have a strong, direct relationship with JAWB. (PsycINFO Database Record (c) 2010 APA, all rights reserved)