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1.
广州市是华南地区的中心城市.位于珠江三角洲的北端.东江.北江、西江在此汇合,珠江穿市而过,濒临南海.毗邻香港和澳门.背靠华南腹地.是华南地区的交通通讯枢纽和重要贸易口岸.是我国对外交往的重要门户.有中国“南大门”之称。  相似文献   

2.
上海地处太平洋西岸,亚洲大陆东沿.长江三角洲前缘,东濒东海.南临杭州湾.西接江苏、浙江两省.北界长江入海口,长江与东海在此连接。上海正当我国南北弧形海岸线中部.交通便利.腹地广阔.地理位置优越.是一个良好的江海港口。上海是全国最大的经济中心城市.正在向现代化国际大都市目标迈进的上海.肩负着面向世  相似文献   

3.
经济的发展.不仅加快了高速公路建设的步伐.而且对系统的要求也越来越高。作为高速公路4大机电工程中之一的收费系统.目前是国内高速公路机电工程应用的核心.也是效益发挥最大、最为成熟的系统.系统监测数据准确。  相似文献   

4.
高速公路监控系统是高速公路建设不可缺少的重要组成部分.是保证道路服务水平的主要手段.通过该系统可以及时监视.处理和引导交通流.大大提高高速公路的整体服务水平。  相似文献   

5.
浙江省金丽温高速位于华南褶皱系丽水-宁波隆起带.断裂构造发育.具有地形险峻.地质复杂.桥隧结构多、高填高挖多,三高工程多等特点.全线情况较为复杂.区域跨度较大.造成地区温差较大.气候变化无常。在同一时间内.经常会出现一区段是大雾团雾另一区段是晴空万里,还有区段却是暴雨或大雪纷飞等恶劣天气。佥丽温于2002年12月28日开通至今.  相似文献   

6.
省收费结算中心是省域三级联网收费机构中的最上层.也是最重要的一层。结算中心要公正、准确地进行收费交易数据.通行费等的采集.结算及账务分割.要将通行费的拆分结果数据下传给每个收费中心,或者要对分中心的拆分和结算结果进行校核审定.要与指定的结算银行进行账目信息的交换与结算.建设收费结算中心是实现联网收费最重要的项目工作.也是要优先实施的工程。下面就收费结算中心的功能和网络系统构成要点进行说明。  相似文献   

7.
八达岭高速公路分三期建成:一期工程为清河至昌平段.二期工程为昌平至水关段.三期工程为水关至河北段。其中一期和二期工程分别于1996年11月和1998年11月前后通车收费.采用的是开放式收费模式.共有车道55条.采用的是自主维护、维修模式。1999年底三期工程完成实施.于2000年1月1日八达岭高速公路实现全部建成通车,且收费模式由开放式收费改为封闭式收费.全长70KM.车道144条。  相似文献   

8.
项目管理软件是伴随着项目管理体制的建立和完善而不断发展、普及的。20世纪80年代以来.我国项目管理体制首先在建设项目上有所突破。鲁布革水电站是利用世界银行贷款项目.1984年在国内第一次采用国际招标.推行项目管理。结果缩短了项目工期.降低了造价.工程质量优良.取得了明显的经济效益。此后,我国的许多大中型工程相继实行项目管理体制,包括法人负责制.合同承包制.建设  相似文献   

9.
中国经济去年增长速度高达10.6%.再加上人民币存在大幅升值空间的诱惑,使得中国市场对于海外资金的吸引力.正处于持续增长之中。不过在这良好势头的背后.一股股暗流资金对中国市场的作用.是好是坏,却值得高度重视与警惕。  相似文献   

10.
4月的IT产品市场.是一个随便那个犄角旮旯都蠢蠢欲动的阶段.因为从准备,巡展、促销.直至热销高潮的暑假,是需要有这个时间跨度来酝酿的。这不.周末休息了两天.周一早上就又看到了一个蠢蠢欲动的家伙露出了头.说它是“非典”PC.因为它是没有硬盘,软驱。光驱这些“内脏”的PC.外国人叫它NC.现在它自称“网络计算机”。  相似文献   

11.
The aging of the population in Japan is a serious problem, and the reform of the public pension scheme is a major political issue. Although the 2004 pension reform was enforced to ensure a sustainable pension system in such an aging society, people remain quite apprehensive about the pension system. Consequently, various sectors have created new proposals for pension reform to overcome these problems, and it has become a recent policy debate. The objective of this article is to prepare projections for the income distribution of households containing elderly people using the Japanese microsimulation model, INAHSIM (Integrated Analytical Model for Household Simulation), and to evaluate the effect of the proposals on the living standards of the elderly. According to the simulation results, the problem of very low pension amounts for the elderly does not appear to be growing. However, changes in co-resident families of the elderly, such as the increase in the number of people living alone, may cause a decline in their standard of living. The author points out the problems of the previously proposed reform plans and proposes an alternative reform plan based on the perspective used in this paper.  相似文献   

12.
鲍烨童 《中关村》2014,(9):92-94
互联网思维的核心是以用户为核心,做减法,让品牌与用户之间的距离更短。互联网时代,品牌会变的更重要,一个有个性的品牌才能在90后逐步崛起的一个非常成熟和非常自我的年代深入人心。产品市场竞争如今已经进入了品牌竞争的新阶段。随着全球经济一体化进程的加速,互联网在商业中的作用也越来越明显。在互联网时代如何打造成功企业品牌,使得企业具有品牌核心竞争力将显得尤为重要。  相似文献   

13.
Nowadays, many businesses, such as banks, use direct marketing methods to reach customers to minimize the campaigning cost and maximize the return rate. To achieve this, huge customer data should be analyzed to determine the most appropriate product offer for each customer and the most effective channel to reach her/him. However, since only a very small amount of responses collected from the customers are positive to the offers, the dataset is very imbalanced. This decreases sensitivity ratio of prediction results and makes it difficult to make a successful product and channel selection for the offer. In this paper, we propose a hybrid system, which first classifies the customers to decide if s/he is interested in the offered product, and then clusters them for product and channel suggestions. Experiments with real life banking data show very promising accuracy results for predicting the proper product and channel for the customers. Moreover, cost-profit analysis is also added to this problem. Our experiment results show that the proposed method decreases a fraction of the total profit, but since the decrease in the total cost is very large, there is a huge increase in the overall profit/cost ratio.  相似文献   

14.
Graph-based entropy, an index of the diversity of events in their distribution to parts of a co-occurrence graph, is proposed for detecting signs of structural changes in the data that are informative in explaining latent dynamics of consumers’ behavior. For obtaining graph-based entropy, connected sub-graphs are first obtained from the graph of co-occurrences of items in the data. Then, the distribution of items occurring in events in the data to these sub-graphs is reflected on the value of graph-based entropy. For the data on the position of sale, a change in this value is regarded as a sign of the appearance, the separation, the disappearance, or the uniting of consumers’ interests. These phenomena are regarded as the signs of dynamic changes in consumers’ behavior that may be the effects of external events and information. Experiments show that graph-based entropy outperforms baseline methods that can be used for change detection, in explaining substantial changes and their signs in consumers’ preference of items in supermarket stores.  相似文献   

15.
This paper presents an empirical analysis of the factors determining the productivity of the software industry in Japan, using individual data from the Survey of the State of the Information Service Industry conducted in August 2006 by IPA (Information-Technology Promotion Agency, Japan). This paper focuses on the relationship between the subcontracting structure and productivity in the Japanese software industry. Software enterprises are classified as prime contractors, intermediate subcontractors, end-contractors, and independent enterprise. A comparison of their productivity levels reveals that intermediate subcontractors are the least productive. However, it is observed that the intermediate subcontractors possessing a high quality of human resources measured the proportion of employees passing the Information Technology Engineers Examination (ITEE), or the intermediate subcontractors adopting the IT skill standard which defines the skills for IT human resources clearly and systematically, has a high productivity level. It can raise the productivity in software industry as a whole.  相似文献   

16.
在推动文化大繁荣大发展的时代背景下.海淀区文学艺术界联合会召开了第三次代表大会。会议审议通过了海淀文联工作报告.修订了《海淀区文学艺术界联合会章程》,选举产生了新一届领导机构。从一个区域的活动,我们看到了中国艺术的文化力量。  相似文献   

17.
蔡向东 《中关村》2011,(2):74-76
一国国民国旗意识的强弱直接反映其国家观念所达到的深度与热度,同时,一国国民较强的国家观念也必然表现为其对本国国旗的认同与喜爱。  相似文献   

18.
We construct a two-period model in which a consumer recognizes the existence of goods after advertised by firms, and total sales of the first period affect the utility of each consumer’s purchase in the second period, indicating a consumption externality. Some consumers see advertisements in the first period and remember the product, whereas some forget the product in the second period. We show that the advertising volume changes given the differences in the forgetting rate. In particular, we apply our method to the data on Japan’s electronic books obtained through a conjoint analysis survey to clarify that a better strategy is to sell a product to a small number of people at a low price or to lower the price to a certain level during the early period, and then to sell the product to a specific consumer segment at a higher price after reflecting the externality.  相似文献   

19.
Cloud Computing is defined as computer usage delivered as a service over the Internet. This cloud computing is classified as public computing, private computing, or hybrid computing. Public cloud computing is open to any customer who pays service charges. On the contrary, private cloud computing is used by a member of a company who has constructed a cloud computing system over a restricted domain on that company's information infrastructure. Hybrid cloud computing is a mix of both the public and private. Which type of cloud computing is popular in Japan? To answer this question I mailed questionnaires to 2,284 enterprises listed on the Tokyo Stock Exchange Market in 2012 and 2013. I analyzed the relationship between these answers and financial indexes using a multinomial logistic regression model. I concluded that the total assets was the most effective factor in the decision to introduce the public cloud, and the accumulated profit was one of the most effective factors in the decision to introduce the hybrid cloud. These findings are not consistent with orthodox price theory.  相似文献   

20.
宗和 《中关村》2012,(7):36-37
地球是人类的摇篮,但是人不能永远生活在摇篮里,他们将不断地争取着生存世界和空间,起初小心翼翼地穿出大气层,然后就是征服整个太阳系。——齐奥尔科夫斯基  相似文献   

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