面向人机协同的计算机辅助创新设计系统开发

计算机辅助创新设计系统是设计人员实现快速产品创新开发的重要支持工具。通过分析现有系统的优势与不足,提出人机协同设计的系统开发思想。基于这一思想,分析影响设计者创造力的可控因素,提出系统的基本构成要素,包括知识库系统、信息检索系统、概念设计空间及创造性思维方法,并描述了系统应具备的基本功能,包括支持设计问题外部表征、支持问题空间表象化、支持设计者工作记忆的扩展。最后,阐述了系统的功能构架及系统的开发技术,并给出原型系统的部分运行实例。     

气泡负载测量装置的创新及应用

对比分析了现有气泡负载测量装置的应用及存在的不足,介绍了一种改进型的气泡负载测量装置及创新测量方法,能够实现长时间连续稳定测量取样,且干扰少,精度高。将该装置和方法应用在工业浮选设备的测试中,对江西某一选矿厂的两个平行选硫生产线的粗、扫选作业进行了气泡负载测量及其对比分析,一期选矿厂粗、扫选作业浮选机内的气泡负载率在最浅处仅为9.99g/L和2.64g/L,而二期选矿厂达到了16.25g/L和8.47g/L。同时,利用该装置,首次对浮选槽近液面区域内矿化气泡运输过程中的负载变化规律进行了探究,结果表明,随着气泡的上升,粗选浮选槽内气泡负载量在近液面区呈现上升趋势,而扫选浮选槽内气泡负载量在近液面区呈现相反的下降趋势,这一规律同时也在另一个生产系列得到验证。气泡负载量的差异和变化规律揭示了浮选槽内气泡的矿化过程,可为选矿厂工艺调整及浮选槽性能的改进提供参考依据。     

热轧带钢卷及型钢全自动捆扎机的创新设计

在考察了国内现有热轧带钢卷与型钢生产线的捆扎现状以及研究了国内外多种钢材打捆机的基础上,研制了一种全新的带钢卷、型钢全自动捆扎机。详细介绍了该捆扎机的整体结构;系统阐述了该捆扎机主要组成部分以及性能原理。该捆扎机结构巧妙,易于操作和维护,能适应各种恶劣的工作环境。     

大数据条件下高校图书馆档案管理机制创新研究

本文重点分析了高校档案管理中存在的问题，探讨出一些改进对策以提供一些理论依据促进档案管理工作的完善。     

Patterns of Innovation Capabilities in KIBS Firms: Evidence from the 2003 Statistics Canada Innovation Survey on Services

The aim of this paper is to shed light on complementarities and substitutions between various types of innovation capabilities in knowledge-intensive-based service (KIBS) firms. The data used in this study are the responses of 2,625 innovative firms to the 2003 Statistics Canada Innovation Survey on services. The empirical results suggest the presence of three patterns of complementary innovation capabilities, one pattern of substitute activities and finally, four patterns of innovation capabilities that are independent from each other. Hence, the results suggest the presence of complementarities: first, between internal R&D, external R&D, acquisition of equipment and machinery, and marketing activities; second, between external R&D, acquisition of equipment and machinery, acquisition of external knowledge and marketing activities; third, between acquisition of equipment and machinery, acquisition of external knowledge and marketing activities. Such complementarities lead to the conclusion that, in practice, managers of KIBS firms consider the consolidation of these capabilities jointly instead of separately. The paper also discusses issues related to patterns of capabilities that are substitutes and independent from each other. The results of this study also show significant heterogeneity in the determinants of the different patterns of innovation capabilities.     

Passive mixing control for innovative air diffusion terminal devices for buildings

This paper presents an innovative concept for optimized air diffusion in buildings. The method uses passive control of air jet through lobed diffusers. An analysis is done experimentally at different scales for a lobed shaped geometry. A cross-shaped jet is characterized first through an isolated orifice and then at the scale of one perforated panel. An intermediary analysis of two coalescent and a row of cross-shaped jets is also proposed. All the results lead to the same conclusion. The lobed diffuser favors the self-induction compared to a reference conventional circular perforated diffuser. The air flow induced in the case of the lobed perforated panel is in average twice as the one of the circular perforated panel. Despite the consequent gain in air induction for the lobed perforated panel flow, the streamwise maximum velocities display comparable values in the far field which signifies comparable throws for the two flows. Consequently, the presented lobed perforated panel concept can be generalized to different type of diffusers to improve mixing ventilation in buildings.     

Prospect options of CO2 capture technology suitable for China

Reviewing the progress of CO₂ capture and storage (CCS) technology, the main obstacles and the potentials of greenhouse gas control in China are identified. An important point can be drawn is that the innovative energy systems, besides simple implementation of existing technology, are needed for CO₂ control in China. On the basis of integration principle of energy utilization and CO₂ separation, several innovative energy systems, including chemical-looping combustion with CO₂ capture, a partial gasification with O₂/CO₂ cycle, and a polygeneration system with CO₂ capture, are introduced. With synergetic integrating CO₂ into chemical energy conversion and utilization processes, these systems may make breakthrough in CO₂ capture with less or even zero energy penalty. Finally, according to the specific issue of China, a new scenario of Energy Network, which composed of energy source, transportation chain, and terminal user, is recommended for sustainable development in China.     

Measuring the exhaled breath of a manikin and human subjects

Due to scarcity of accurate information and available data of actual human breathing, this investigation focuses on characterizing the breathing dynamic process based on the measurement of healthy human subjects. The similarities and differences between one breathing thermal manikin and the human subjects, including geometry and breathing functions, were thoroughly studied. As expected, actual human breathing is more complicated than that of the manikin in terms of airflow fluctuations, individual differences, and exhaled flow directions. The simplification of manikin mouth structure could result in overestimated exhaled velocity and contaminant concentration. Furthermore, actual human breathing appears to be relatively stable and reproducible for an individual person in several conditions and is also accompanied by some uncertainties simultaneously. The averaged values are used to analyze the overall characteristics of actual human breathing. There are different characteristics of the exhaled breath between male and female subjects with or without wearing a nose clip. The experimental results obtained from the measurement of human subjects may be helpful for manikin specification or validation and accuracy assessment of CFD simulations.     

论城市经营与城市环境

城市环境是城市经营的客体，良好的城市环境是城市经营的目标，两者相互作用，互为因果。作为城市经营的主体，政府与社会中介组织、企业通过自上而下和自下而上两个渠道多途径来营造良好的城市环境。     

工程结构学科课程设计的CAIS构想

本文剖析了在工程结构各学科的课程设计组织中存在的问题,阐述了在此类课程设计中引入计算机辅助教学系统的必要性和可行性,提出了这类系统应具有的功能及其各组成要素的结构形式.