矿山测量数字化的研究与实践

针对传统矿山测量数字化管理的不足,提出了利用AutoCAD二次开发技术,结合数据库技术,建立了测量数据和图形共享的矿山测量数字化系统,实现了精确计算、数据管理及数字化展点等相关功能,具有方便、快捷、精度高等特点.     

Association report: Grant and contract activity in 2008.

Presents a list of the American Psychological Association's grant and contract activity in 2008. Titles, sponsors/grants, and total award amounts are provided. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

系统开发中Ajax Control Toolkit的应用

结合实际案例,介绍了Ajax Control Toolkit在Visual Studio.NET2008中的使用,并根据应用实践讨论了Toolkit带来的好处。实践证明,Toolkit的应用极大地提高了程序员的编程效率,并能给系统用户带来丰富的体验。     

利用剩余高程异常模型建立阳山矿区GPS高程转换算法

随着卫星重力测量技术的不断完善和发展,使得利用重力场模型进行GPS点高程转换的精度和可靠性都获得了极大提升。文章利用SRTM、DTM2006.0模型和EGM2008模型求得阳山矿区GPS点剩余高程异常,并进行残余高程异常拟合,建立阳山矿区剩余高程异常转换计算方法。在对阳山矿区22个D级GPS点,48个E级GPS点的高程数据进行比较后,发现此方法转换最高精度能达到2.8 cm,最差精度为4.4cm,平均精度为3.2 cm,从而证明了此方法可以提高阳山矿区GPS高程转换的精度。     

基于EGM2008模型的GPS高程转换的精度分析

当今测绘领域研究较多的内容就是如何快速、高精度的测定控制点的高程。高精度的地球重力场模型被用来将GPS确定的大地高转换为正常高,以取代高劳动强度、低效率的水准测量。目前,GPS高程转换较为普遍的做法是根据已掌握的GPS控制网高程数据,应用EGM2008模型求出点位高程异常进而推算出网内各点的正常高。结合工程实例中对GPS高程控制网的试算,对上述GPS高程转换所达到的精度进行了分析,证实此方法可以达到四等水准的精度。更多还原     

Information Modelling as a Paradigm Shift

Building information modelling (BIM) is not just a change in software or skills sets, it requires a paradigm shift. Dennis Shelden , Chief Technology Officer of Gehry Technologies, outlines the more ‘fundamental, subtle and profound decisions’ on the road to BIM. It is necessary to fully consider not only the impacts both ‘upstream’ and ‘downstream’ from the conventional design phase, but also the possible creative restrictions as there is a potential trade-off that comes with the emphasis on collaborative processes. Copyright © 2009 John Wiley & Sons, Ltd.     

Collaborative Intelligence = Respect

Cultural projects today are often unprecedented in their complexity, scale and collaborative effort. Keith Kaseman, partner of Kaseman Beckman Advanced Strategies (KBAS), describes how building information modelling (BIM) enabled the realisation of the Pentagon Memorial in Arlington, Virginia. Twenty-eight contractors and consultants were brought on board in the design and delivery of the monument's 184 ‘memorial units’, which collectively commemorate the individual lives lost at the Pentagon on 11 September 2001.     

Supersudaca

The simultaneous move towards specialisation and generalisation has opened up the way for ‘new fields of action’ and ‘strategical approaches to design’. Portuguese architect and critic Carlos Sant'Ana describes how urban Latin American think tank Supersudaca epitomise what is best about this new ‘Pragmatopian’ thinking with their Al Caribe project. Copyright © 2009 John Wiley & Sons, Ltd.     

Evolving Patterns: Correlated Systems of Interaction

Over the last four decades, the onset of computation has enabled architects and designers to employ generative patterns in their exploration of emergent social, material and spatial systems. Theodore Spyropoulos provides an overview of the field and discusses how it has been developed by the Design Research Lab (DRL) at the Architectural Association into an ‘Adaptive Ecologies’ agenda. In the context of parametric urbanism, the DRL has explored models of living through behavioural patterns found in nature, examining the role of the singular and the collective. Copyright © 2009 John Wiley & Sons, Ltd.     

Vassall Road Housing and Healthcare Centre,Brixton, London

Tony Fretton's latest project is a demonstration of what can be achieved on a tight budget. David Littlefield describes how the practice has managed to create a thoughtful and yet highly practical health and residential centre on a rather typical south London street. Copyright © 2009 John Wiley & Sons, Ltd.