摇号还是拍卖

中国多个城市正在推行新车限购政策，有的拍卖、有的摇号来让消费者获取车牌，但哪一种更好？     

美国经济正在复苏

中国、巴西和印度等国家可能将是下一个在全球货币交锋中赢得主导地位的国家,然而就现在来看,美元目前强劲走势暗示,其作为全球最高货币的地位并未受到破坏,而且美国经济正在复苏.     

汽车尾气在伤害什么？

5岁的儿童若在胎儿时期母亲接触多环芳香烃（或简称PAHs）超过平均水平，那么IQ测试的得分就会较低，而这种化合物由化石燃料燃烧产生，茌汽车呼啸的城市中无处不在。     

Modeling the growth and policy implications of Global System for Mobile Telecommunication （GSM） in Nigeria

This paper investigated the growth and policy implications of Global System for Mobile Communication in Nigeria. Stochastic economic modeling was used to analyze Nigeria＇s time series data. The models were adjudged reliable before they were used. The components of the model were defined and a prior expectation of the relationship among the variables explained for the purpose of giving the reviewers and users a deep insight into the phenomenon under study. The secondary data used for the study were processed using the E-View for windows electronic packages. The outcome of the empirical and stochastic investigations shows that Global System for Mobile Communication has a positive relationship with output growth in Nigeria. The impact is of a higher magnitude. The usage of Global System for Mobile Telecommunication led to 17 percent rise in the output growth. The findings suggest the need for the Nigerian Communication Commission （NCC） and the federal government of Nigeria to expand tele-density and directly make telephone communications cheap and accessible. To achieve this goal, more licenses should be given to GSM operators in order to allow for healthy competition among them. This will lead to improved quality of services, quality of product and consequently sustain the growth and development of the country.     

Economic crisis： Using M ｜ G ｜ ∞ queue systems busy period to solve logistics problems in an organization

The recent economic developments in the world have shown how important it is to solve the logistics problems of machine failures in an expedite way. A model based on queues theory to solve these failures is presented. Using this model with M ｜ G ｜ ∞ queuing systems, customers arrive according to a Poisson process at rate A. Each of them receives, immediately after its arrival, a service whose length is a positive random variable with distribution function G（.） and mean value α. An important parameter of the system is the traffic intensity ρ =λα The service of a customer is independent of the services of the other customers and of the arrival process. The busy period of a queuing system begins when a customer arrives there, finding it empty, and ends when a customer leaves the system letting it empty. During the busy period, there is always at least one customer in the system. Therefore, in a queuing system, there is a sequence of idle and busy periods. For these systems with infinite servers the busy period length distribution is difficult to derive, except for a few exceptions. But formulae that allow the calculation of some of the busy period length parameters for the M｜ G ｜ ∞ queuing system are presented. These results can be applied in logistics （Ferreira, 2002; Ferreira, 2003; Ferreira, Andrade ＆ Filipe, 2009）. For instance, they can be applied to the failures which occur in the operation of an aircraft, shipping or trucking fleet. The customers are the failures. And their service time is the time that goes from the instant at which they occur till the one at which they are completely repaired. Here a busy period is a period in which there is at least one failure waiting for reparation or being repaired. The formulae referred allow the determination of measures of the system performance.     

A ＂Paradox＂ in China＇s Environmental Management： An Argument From a Comparative Study on Waste Recycling Policies Between China and Japan

China appears to have a ＂paradox＂ in its environmental management policies. For example, China＇s recycling policies appear paradoxical. With its rapidly expanding economy, China is now the world＇s largest emitter of urban waste. Under such a situation, China is aiming to build up a recycling economy by enacting a number of related laws. Despite the development of waste recycling regulations, however, the load on the environment by continuously increasing waste has not reduced in China so far. What explains this seemingly paradoxical situation of waste recycling in China？ It has been pointed out in the previous study on China＇s climate change policies that environment protection falls under the rubric of sustainable development in China. The question here is whether the same story can be applied to areas other than climate change in China＇s environmental management. This paper examines it in the area of its waste recycling policy. This paper conducts an evaluation of waste recycling regulations in China by comparing it with the experience of Japan, China＇s next-door advanced country. It concludes that the waste recycling regulations in China do not primarily aim at reducing the environmental load by reducing the amount of waste but rather for the main purpose of recycling and reusing resources effectively for the sake of economic development.     

我国文化产业国际竞争力比较及提升策略——基于2011年横截面数据的分析

本文从生产要素、需求要素、产业关联、企业发展、政府行为和贸易行为层面构建文化产业国际竞争力的评价指标体系,依据相关横截面数据,以2011年世界经济排名前20的国家为对象,对中国文化产业国际竞争力水平进行了年度评价。结果表明:中国作为世界文化大国的地位并没有变化,但离文化强国的地位尚有很大差距,文化产业虽增长较快,但综合国际竞争力较弱,在20个参评国家中处于中下等位置,与世界第二大经济体的地位还不相称。存在要素配置不合理、居民文化消费层次低、文化企业价值网络尚不成熟等系列问题。因此,需要从促进产业整合、完善产业网络、提高科技含量、优化政策与法律环境、加强人才培养,推进产业开放,统筹规划产业布局等方面采取系列策略。     

建筑控的新藏品

费尔鲍姆是Vitra的掌门人，这位瑞士富豪有着迥异的收藏癖好，喜欢收藏建筑，是世界上最牛的建筑收藏家。     

抢在天灾之前

1分钟的预警足以让列车停运,让能源站关闭,让医生给正在手术的病人做紧急处理,它可以改变处于地震带人们的命运。世界杯倒计时一周年!明年的这个时候,6月13日的巴西将迎来全世界的球迷。虽说巴西体育部部长里贝洛再三表示巴西已在安全方面做好了充分的准备,但天灾人祸如何防备?这不,为了保证2016年夏季奥运会和2014年世界杯足球赛顺利举办,里约热内卢已与IBM"智慧城市"项目合作,     

洒满阳光的叶片

一 2002年是具有突破性的一年,这一年,Noé Duchaufour-Lawrance被伦敦一家知名餐厅任命为素描艺术总监,但他的艺术生涯仅仅是在两年前开始.他为BSL画廊做的内部设计和为阿尔卑斯山设计的一个小屋成为事业的转折点,越来越多的家具品牌纷纷邀请他设计新产品系列,Meta和BSL画廊也委托他担当艺术设计.BSL画廊甚至让他在迈阿密/巴塞尔设计展上以Naturoscopie的名义举办个展. 展览(BSL在巴黎的展览持续到12月中旬)有三个独特的设计:书架,一对办公桌和配套镜子,一组七盏灯.最抢眼的设计就是这组灯,"Naturoscopie II".该设计运用了可编程的LED等,镜子和彩色表面,试图唤醒阳光穿透叶片.特有的两片,三片或五片"叶子"形状各异,结合磨砂或光亮的叶面,仿佛在墙壁上婀娜,向天花板延伸.