浅析包头钢厂全交流高速线材传动系统的调试

中冶京诚电气所的棒线材轧线控制系统，控制功能丰富，算法精良，功能模块十分成熟和可靠，非常有利于维护和功能的进一步扩充。在标准化、模块化的过程中，融入了多年棒线材轧机控制经验，并吸收了多个国际知名公司控制软件的优点结合用户具体需求所制定的电控方案，能最大限度的节约投资、减小风险，取得最大的经济效益。目前全交流传动高线技术已成功地应用在多项工程上。本文以包头钢铁全交流高线为例，讲述传动调试过程。     

C#实现连续读写射频卡的两种方法比较

由于软件项目的需要,要实现这样一个功能:读卡器连续自动读卡,并将读出的数据记录在数据库,修改卡上的信息,一直到手动停止.要实现这样的功能,有两种方法,一种是委托监听,另外一种是循环读卡,介绍这两种方法,并对比这两种方法的优劣.项目所使用的是串口的IC卡读写器,读卡器有两种接口,一种是USB,另一种是RS-232的标准串口.     

Sunderland

Sunderland, lying on the north east coast of England, is the largest city in the north east of England. Having historically suffered from its proximity to the Tyneside conurbation centred around Newcastle-upon-Tyne, Sunderland has a long and illustrious history and the city is an interesting one to examine in a City Profile in its own right. In the first instance the legacy of the Tyne and Wear Development Corporation regeneration initiatives from the late 80s and early 90s has been the piecemeal development of unrelated and un-linked projects along the river Wear. Sunderland Arc, the urban regeneration company formed in 2002 by a local partnership to regenerate the city, has had a much broader focus and remit with a clear mandate for redevelopment. This profile examines recent regeneration initiatives and a move from a piecemeal development of disparate sites to partnership working and a more holistic view of regeneration activities, and is a good example of some of the innovative ways in which smaller cities are seeking to re-image and regenerate in response to economic crises.     

Acknowledgment by the Commission on Accreditation.

Presents a list of individuals the Commission on Accreditation would like to thank for their contributions to the work of the commission by serving on site visit teams and appeal panels during the 2008–2009 academic/training year. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

电气设施外壳防护标准的比较

简要介绍了国际电工技术委员会IEC60529和美国国家电气制造商协会NEMA250的外壳防护标准,列出了各防护代码的含义定义,然后对两者进行了详细的比较,旨在对电气、电子产品外壳的选型、应用和评价提供一个参照。     

Seize the (intra)day: Features selection and rules extraction for tradings on high-frequency data

We describe a method to develop trading rules based on the responses of self-organizing maps (SOMs), trained under various distance metrics. The effectiveness of the procedure is examined on 5 min data of S&P MIB financial index, and its performances compared with those of classical buy and hold trading technique. The noticeable innovations of the paper include the methodology itself, which brings SOMs into a decision making tool to operate into the market; the focus on intraday tradings bars; the systematic study of how changes in the distance metrics employed to train the maps may affect the overall performances, and, finally, the discussion of system performances both in the absence and in the presence of commission fees. At the current stage the results, evaluated with both financial and statistical indicators, bring us to the following conclusions: (a) self-organizing maps can be helpful to localize profitable intraday patterns, achieving more stable performances than common trading rules; (b) working with proper metrics may enhance the overall performances; (c) trading strategies based on unsupervised neural networks make exploitable with profits almost continuous trades, until commission fees maintain below suitable thresholds.     

欧洲PCB行业的供应链面临萎缩

主要论述由于世界原材料涨价和价格竞争等原因,欧洲PCB行业供应链面临萎缩。     

Statement on report of Joint Commission on Mental Illness and Health.

An "endorsement of Action for Mental Health [see 35: 6705], the final report of the Joint Commission on Mental Illness and Health." The report cites the very substantial cost of adequate care for mental patients, hidden costs of mental illness, gross inadequacy of present measures, and presents a pattern of increased federal financial support to deal with the problem. It recommends the demise of the large custodial "mental hospital" and calls for "invention and trial of novel approaches." Reservations about the report are also made explicit: the report emphasized improved treatment of mental illness at the expense of other facets of the problem area; it says little about promoting more effective personal development. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

中国联通社会渠道发展之路

通过研究电信运营商目前的社会渠道发展现状,对比分析运营商之间的竞争态势,提出中国联通在社会渠道方面的发展策略建议,为联通公司下一步的渠道发展提供参考。     

近代东方的“中世纪欧洲城市”——澳门

澳门,这个孤悬海外的弹丸之地,本无任何资源或文化上的优势可言;澳门,这个近代移植于西方的中世纪胚胎,本无任何孕育成长的生机可望.然而,澳门奇迹般地生存与发展,使我们得到一个极其罕见的例证,去探索原本在时间、空间和性质上差异极大的城市文明之间的和谐共存.