用CAXA三维电子图板V2实现机座的造型和出图

研究利用CAXA三维电子图板V2绘图软件进行减速器机座的实体造型和工程图输出，找出绘图软件在机械设计应用中存在的不足，指出软件设计尚待解决的剖视图处理缺陷。以及二、三维图形相脱节等问题。     

对提升成都高新西区产业聚群外部规模性的建议

针对成都高新西区的聚群经济仍处在低级阶段,西区企业缺乏核心竞争力,急待升华的现实,建议政府要调整开发区布局,要促成产业聚群经济;要与西区周边各大学互动发展。     

国外500kV变压器过励磁保护的分析

根据国外过励磁保护在绍兴电力局500kV变电站的应用情况,以500kV凤仪变#3主变ABB过励磁保护为例,着重分析了其基本原理、与变压器过励磁特性曲线的配合、存在的保护死区以及整定调试等问题。     

浅谈双母双分段母线保护配置中的若干问题

阐述了双母双分段母线系统的保护配置方案 ,分析了双母双分段母线系统保护配置中需注意的几个问题 ,尤其是母线故障时环流的影响 ,另外分段断路器辅助触点的使用给分段死区故障带来了新的解决方案 ,但也带来了因辅助触点不可靠而产生的相应问题 ,讨论了这些问题并给出了相应的处理方案     

Performance Measurement in Construction

Performance measurement has been subject to a considerable amount of research and attention over the past 15 years. The inadequacy of traditional financially based performance measurement systems and the introduction of nonfinancial measures have been the triggers for much of this research. The purpose of this paper is to review the main performance measurement frameworks and their application by U.K. construction firms and to identify gaps in knowledge and practice that suggest future research. The contemporary performance measurement frameworks are reviewed, including the Balanced Scorecard and the European Foundation for Quality Management Excellence Model. The status of performance in the U.K. construction industry is discussed, in addition to project/operational-level performance measurement and the linkage between performance measurement and strategic management. Gaps in knowledge and practice are overviewed both in general and for the construction industry in specific, thus suggesting future research.     

Speech Recognition Technology and Students With Writing Difficulties: Improving Fluency.

The present study investigated the effects of speech recognition technology (SR) and advance planning on children's writing processes. Fluent and less fluent writers, ages 11 to 14, composed 4 narratives, via handwriting and SR, both with and without advance planning. Less fluent children's handwritten narratives were significantly inferior to those of fluent children in terms of length, quality, and surface errors. For less fluent writers, SR (a) significantly increased the length and (b) decreased the surface errors of narratives. Although narrative length related positively to holistic quality, SR did not significantly improve quality. Advance planning helped children to compose more fully developed stories. For children with writing difficulties, advance planning and SR may each independently support text generation. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Retardation of Dredged Material Leachate in Foundation Soils

Contaminated dredged material is often placed in confined disposal facilities (CDFs) designed and managed to control environmental impacts of the disposed sediment. This note presents equations for use in a screening procedure to evaluate the impact of a CDF on groundwater. The hydrologic evaluation of leachate production and quality model was used to simulate leachate production and transport through the foundation considering a range of foundation soil characteristics and contaminant properties. The model results were used to develop predictive equations of contaminant attenuation and travel time in the foundation soils. When used with equations to predict dispersion in the aquifer, contaminant exposures at receptor locations can be predicted, which is essential in leachate screening applications. The approach does not consider degradation or permanent sequestration of contaminants. Therefore, the procedure is conservative in that it may overestimate actual leachate concentrations and underestimate actual travel times.     

Planning and Control of Straight-Ahead and Angled Planar Movements in Adults and Young Children.

In the present study we wanted to determine why straight-ahead movements performed along one's midline are directionally more accurate than movements toward eccentric targets. We also wanted to determine whether the processes underlying this difference were the same in young children as in adults. Six-to-seven-year-old children and adults practiced a video-aiming task using different starting base and target combinations without vision of their ongoing movements. The results indicated that adults and children were directionally more accurate and less variable when pointing toward targets located straight ahead of the starting base rather than eccentric or concentric targets. This was true, regardless of whether the movement was performed along one's midline or not. These results suggest that angled movements are directionally less accurate than straight-ahead movements because of difficulty in defining the orientation of the appropriate movement vector in the workspace and/or in transforming it into appropriate motor commands. A kinematic analysis revealed large coefficients of direction and of extent variability early after movement initiation. However, these coefficients of variability were largely reduced by the occurrence of peak extent velocity, revealing that noise in initial movement planning was quickly reduced by on-line control processes. Finally, the results indicated largely similar planning and control processes for young children and adults. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Four-Dimensional Visualization of Construction Scheduling and Site Utilization

Four-dimensional (4D) models link three-dimensional geometrical models with construction schedule data. The visual link between the schedule and construction site conditions is capable of facilitating decision making during both the planning and construction stages. The emphases of these 4D developments have often been placed at the level of construction components. Practical features assisting site management are at times lacking in the following areas: (1) generation of site usage layouts; (2) estimation of quantities of construction materials; and (3) cost evaluation. In order to pinpoint these deficiencies, the objective of this work is to enable visual study of the effects of job progress on the logistics and resource schedules. This paper presents a 4D visualization model that is intended both to help construction managers plan day-to-day activities more efficiently in a broader and more practical site management context and to thereby add to our knowledge and understanding of the relevance of modern computer graphics to the responsibilities of the construction site manager. A brief site trial of the software is described at the conclusion of the paper.     

科研型企业的计划调度算法研究与应用

针对科研型企业生产任务的特殊性,引入工种实力以综合反映多项资源的最大负载,讨论了工种实力的定义及评定指标,对不同类型的生产任务给出了基于综合优先级和工种实力的计划调度算法,介绍了在某研究所的具体应用情况。