区域公路网震后连通可靠性分析及系统功能恢复

为了研究区域公路网震后的连通功能,将连通可靠性作为评价指标,采用经验预测方法计算得到公路单元的抗震可靠性,使用事件树和成功树确定贝叶斯网络结构和条件概率表,然后将公路单元的抗震可靠性作为贝叶斯网络的先验概率输入,构建区域公路网连通可靠性分析模型。结合贝叶斯网络的敏感度分析和更新能力,提出一种启发式方法以识别关键单元的修复优先级,为路网系统连通功能恢复提供依据。以2008年汶川M_(S)8.0地震中G213和S9构成的区域公路网为研究对象,对该方法进行了实例应用,结果表明:提出的模型可建立起公路网结构破坏和系统连通功能之间的联系,启发式方法识别出的关键单元及其修复次序能够快速恢复区域公路网的连通可靠性。

系统恢复功能的倡导者——视窗千禧版Windows ME

随着微软新的操作系统WindowsME－WindowsMillenniumEdition(即Windows千禧版）的上市，有关WindowsME的文章也是处处都见。WindowsME是微软公司面向个人用户推出的最新一代操作系统，WindowsME为Win98的第三个版本，行内人士大都认为这是Windows9x编号的最后一种产品。微软公司声称WindowsME主要用于个人用户，它的推出不像视窗98和视窗2000那样在全国很多地方召开新闻发布会，进行媒体轰炸，在国内的销售主要走的是零售渠道。WindowsME在个人电脑维护、数字媒体、家庭网络连接和上网等几方面进行了专门设计。

分级分区急诊护理在急性脑梗死患者中的应用效果

本研究旨在评估分级分区急诊护理在急性脑梗死患者中的应用效果,与传统标准护理方法相比,是否能够提高神经系统功能恢复、症状改善,并降低并发症发生率。方法 进行了一项时间跨度为12个月的研究,共纳入了250名急性脑梗死患者。这些患者被分为两组,实验组接受分级分区急诊护理,而对照组接受标准护理。观察指标包括神经系统功能恢复、症状改善和并发症发生率。结果 实验组患者在治疗结束时表现出明显的神经系统功能改善。他们的NIHSS分数显著低于对照组,差异具有统计学意义(P<0.001)。实验组患者在症状改善方面也取得了显著优势。症状严重程度的改善比例在实验组中明显高于对照组,差异显著。实验组显示出更低的并发症发生率,表明分级分区急诊护理在降低并发症风险方面具有积极效果。结论 本研究的结果强调了分级分区急诊护理在急性脑梗死患者中的应用潜力。该方法能够显著提高神经系统功能恢复、改善症状,同时降低并发症风险。

中药离子导入法治疗急性缺血性脑卒中患者的疗效

观察中药离子导入法对急性缺血性脑卒中患者的疗效。方法选取108例患者为研究对象,随机分为观察组和对照组,每组54例。对照组给予常规治疗,观察组在对照组基础上采用中药离子导入技术。两周后,比较2组的美国国立卫生研究院卒中量表(NIHSS)评分、改良Rankin评分量表(mRS)评分、改良Barthel(MBI)指数评分、中医证候积分及有效率。结果2组患者,治疗后NIHSS评分、中医证候积分均下降,其中观察组中医症状积分低于对照组,观察组mRS评分降低:2组MBI评分均上升,观察组有效率高于对照组,差异有统计学意义(P<0.05)。结论中药离子导入法对急性缺血性脑卒中患者神经系统功能恢复有促进作用。

Chinese Herbal Medicine and Acupuncture Used for Rehabilitation of the Impaired Urinary System in Patients with Paraplegia—A Report of 52 Cases

Infection of the urinary system is frequently seen in the paraplegic patients with urinary complications,which is one of the main reasons for the late death in such cases. The effects of the therapeutic method adopted for the urinary rehabilitation are directly related to the life quality and survival time of the paraplegic patients. Since 1999-2002, the authors had applied Chinese herbal medicine combined with acupuncture for the urinary rehabilitation in 52 paraplegic patients, with quite good therapeuticresults as reported in the following.

Improved area-difference-based recovery information placement

In mobile computing systems,message logging can be used to provide fault tolerance for mobilehosts.Due to the mobility of mobile hosts,their recovery information,including logged messages andcheckpoints,may spread throughout mobile support stations.During recovery,there will be a considerablecost for the collection of recovery information.To speed up recovery and to reduce the failure-freeoverhead,an improved area-difference-based scheme is proposed.It tries to keep recovery informationevenly spreading over an area.Only part of recovery information needs to be migrated for controlling thedistribution of recovery information.To reduce the migration cost,a light-weight migration is also proposed.In the performance study,we give an analysis of the probability that the light-weight migrationtakes place.

WinME优化指南

操作系统作为工作的平台，我们当然希望它强大又稳定，让它充分发挥应有的性能，因而总免不了改这改那。通过本文浅显的讲述，希望对各位新手用好ＷｉｎＭＥ新操作系统有所帮助。

Effects of biodiversity,stand factors and functional identity on biomass and productivity during the restoration of subtropical forests in Central China

Biodiversity is found to have a significant promotion effect on ecosystem functions in manipulation experiments on grassland communities.However,its relative role compared with stand factors or functional identity is still controversial in natural forests.Here,we examined their relative effects on biomass and productivity during forest restoration.We investigated stand biomass and productivity for 24 plots(600 m2)across restoration stages in the subtropical forests of Mt.Shennongjia,Central China.We measured five key functional traits and calculated functional diversity(functional richness,evenness and dispersion)and community-weighted mean of traits.We used general linear models,variation partitioning methods to test the relative importance of stand factors(density,stand age,maximum height,etc.),functional identity,species and functional diversity on biomass and productivity.Our results illustrated that stand biomass and productivity increased significantly as forest restoration,and that community species richness increased,while functional dispersion decreased significantly.Variation partitioning analyses showed that diversity had no significant pure effects on biomass and productivity.However,diversity may affect biomass and productivity through the joint effect with stand factors and functional identity.Overall,we found that stand factors had the strongest effect on biomass and productivity,while functional identity significantly affects productivity but not biomass,suggesting that modulating stand structure and species identity are effective ways to enhance forest carbon storage and sequestrations potential in forest management.

联想开天4600商用PC

作为国产商用PC先锋,联想开天系列商用PC自2001年发布以来,便引起了业界不小的反响。其独创的“全三维品质”商用PC设计理念,从外在品质、内在品质和应用品质三个层面对现代商用PC进行了全面剖析和细致演绎。时至今日,开天系列依然是联想商用PC中的中高端产品,产品包括大型运算、办公自动化领域,防伪税控专用机和双网隔离机型商用PC等,本次送测的开天4600商用PC为升级型主流产品,面向中高端商务计算设计应用。