我国西部欠发达地区服务业集群发展政策研究——以甘肃为例

采用定量研究的方法,通过制度效应与甘肃经济服务化水平二者关系的实证分析,了解原有的计划经济体制的确是阻碍服务业发展的重要因素,而现有的社会主义市场经济体制更加适宜服务业发展。在此基础上,科学定位了政府在发展服务业中的角色,提出了甘肃服务业集群发展的政策建议。     

华蓥山自然保护区大型真菌资源多样性调查与研究

为了解和合理开发华蓥山自然保护区的大型真菌资源,对保护区内的大型真菌进行了连续一个月的调查与研究。结果表明:该保护区内有大型真菌57种,隶属5纲7目24科43属。其中担子菌亚门层菌纲种类最多,有50种,分属18科37属,占鉴定样本总数的91.2%。保护区内植被类型众多,主要有阔叶林、针叶林、混交林以及灌木草甸,其中灌木草甸中大型真菌最多,有32种,占鉴定样本总数的56.1%。保护区内具有经济价值的大型真菌种类众多,在食用和药用等方面具有较大的开发潜力。     

我国新型农村金融机构存在的问题及对策分析

我国的新型农村金融机构自成立和运行以来,取得了一定的成绩,但也存在着若干问题亟待解决。本文分析了新型农村金融机构运行中存在的问题,并提出改进现状的相关建议,以更好地发挥新型农村金融机构在新农村建设中的作用。     

广西医疗旅游资源的开发整合研究

医疗旅游是一个横跨旅游产业和卫生产业两大行业的新型行业。针对这一特征,文章从旅游资源和卫生资源两大方面分析广西医疗旅游资源的种类及其具体分布情况,并在此基础上对广西医疗旅游资源进行开发整合研究,提出了五大主题八条旅游线路保健休闲养生线路。     

Program Evaluation and Review Technique (PERT) in Construction Schedule Risk Assessment

Construction project scheduling is one of the most critical factors for project success measurement.Not only for the project planning but for construction process management,the scheduling is the basic tool for communication between the owner and the project manager.By developing the schedule before the project starts,the owner knows in advance that the expected timeline of the project.By preparing construction process scheduling,the owner and general contractor can better manage the subcontractors,sub-trades progress,materials storage and deliveries,labors schedule and equipment set up which will eventually save time,money and hassle.Basically,Critical Path Method(CPM) is commonly used in the construction industry.CPM is a deterministic method that assumes that through the network,there is at least one path that determines the project duration and that the path is the critical path.CPM does not consider the uncertainty in the activities;rather it assumes that each activity can be finished in the given situation.Program Evaluation and Review Technique(PERT) is a stochastic technique which is based on the assumption that the duration of a single activity can be described by a probability density function.PERT takes into account the uncertainty during the construction process and has been created out of the need to plan,schedule and control complex projects with many uncertainties.The PERT approach is stated in some books and papers,but there is no deep investigation on the application in the schedule risk assessment.This paper investigates the PERT work process and takes a valuable try on the construction schedule risk assessment by using case studies.The utilization in the estimate the construction liquidated damage with the uncertainties is performed,which also can be used in the insurance company to calculate the insurance premium.     

An optimization model for wayfinding problems in terminal building

Passenger orientation (wayfinding) is one of the important factors for the layout design of airport terminals. It is common that some people have difficulties in locating their destinations in spite of availability of wayfinding aids. Visibility index is commonly used to evaluate the ease of wayfinding. However, there is a lack of studies for the determination of the appropriate locations for setting up wayfinding aids in airport terminals so as to enhance the ease of wayfinding. In this paper, a binary linear program is proposed for better allocation of directional signs for wayfinding. The proposed model can be widely applied to practical situations so as to improve the design of signage system in various enclosed environments including airport terminals, multi-function railway stations, and shopping malls.     

天下世界杯 独家中央台

四年一届的足球世界杯在亿万球迷的期盼中又到来了，6月9日到7月9日举行的德国世界杯大赛将是“地球村”的节日，是2006年世界体坛最为重要的赛事，也将成为2006年最引人瞩目的社会事件。     

审视2003年机电产品出口百强

机电产品在我国对外贸易、尤其是出口中的地位确实越来越重要了。2004年1-5月,我国机电产品出口11359亿美元,占同期我国出口总值的54.7％,比去年同期高4.1个百分点;同比增长44.2％,比同期我国总出口增幅高10.8个百分点。与此相应,在中国进出口企业排行榜上,机电企业也名列前茅。在2003年中国进出口企业500大排行榜上,前10名中有5家是机电企业:鸿富锦精密工业(深圳)有限公司(第2)、达丰(上海)电脑有限公司(第3)、名硕电脑(苏州)有限公司(第5)、摩托罗拉(中国)电子有限公司(第7)、诺基亚(中国)投资有限公司(第10);倘若单纯依照出口额排行,机电企业将包揽前8名。中国出口商品结构的优化,在排行榜上得到了充分的体现。     

营商环境、企业家精神与技术创新关系研究

优化营商环境、激发市场主体活力是我国新时期推动经济高质量发展的重大举措。选取2009-2018年30个省市级面板数据,构建中介效应模型,实证分析营商环境质量对企业家精神的激励效应及技术创新的促进作用。研究发现：①营商环境优化对中国技术创新具有显著正效应,但其影响更多表现为资金供给而非制度供给;②企业家精神是营商环境与技术创新的中介变量,营商环境要素、企业家创新精神和创业精神激励结构对技术创新的影响存在异质性;③营商环境显性激励作用明显,但内生激励不足。研究结论可为持续优化营商环境、激发企业家精神、促进技术创新提供政策启示。