香气四溢的香榭丽舍大街

法国有许多在世界上驰名的标志性建筑或胜地,仅巴黎就有卢浮宫、凡尔赛宫、凯旋门、埃菲尔铁塔、巴黎圣母院等.笔者这里要说的是那条尽人皆知的香榭丽舍大街. 一些历史性的建筑往往标志着一个城市或地区的文化含量.而一条大街则常常标志着这一个城市或地区经济上的繁荣.如美国纽约的华尔街金融大街;日本的银座和日本桥商业街;我国北京的王府井商业大街,都成为这个城市甚至国家的代表.香榭丽舍大街则是巴黎乃至法国的代表.     

基于Vxworks的WebServer的研究与实现

嵌入式技术以及信息技术的发展使得越来越多的设备接入网络成为可能,这两项技术的融和具有广泛的应用前景.首先分析了嵌入式系统网络化的需求,结合对嵌入式操作系统Vxworks和对ARM芯片的研究,分析了相关网络协议,最后提出构建嵌入式WebServer的软硬件解决方案.     

MiniGUI在S3C2410中的移植与应用

在嵌入式产品开发中,除操作系统之外,开发人员关注最多的一个系统软件组件就是图形支持系统.只要是面向人机交互的嵌入式产品,就涉及到文字或者图形的输出.通过比较各种嵌入式Linux平台上的GUI系统的结构和特点,最终选定了MiniGUI作为研究对象.重点研究并实现了MiniGUI在嵌入式Linux上的移植以及Thttpd的GUI控制界面的实现方法及过程,最终在MagicARM2410开发板上成功实现了Thttpd的GUI控制界面.通过GUI界面能够实现对Thttpd的启动、停止、重新启动的功能,实现了GUI控制界面的用户登录限制而且允许用户在登录后更改用户密码.     

庭院小经济推进节约集约用地

一边是蒜苗、菠菜、生菜等各种时令蔬菜,一边的猪圈内有五头将要出栏的肥猪.猪圈旁边是沼气池,沼气池为水泥结构,圆锥形,上边留一个直径有半米的圆孔以便向内填充植物垃圾和秸秆,其余的地方用土填好以后还可以种上菜,墙根没有硬化的地方,还零落地留着苦瓜、南瓜的枯藤.这是日前笔者在修武县城关镇河北辛庄村民范庆河家中看到的景象.     

落日的味道

常在野外走,看得自然比城里敞亮。自然也就发现了非比寻常的美丽。这种美丽是大自然的魅力,她的吸引力堪比任何美味。比方说,落日的味道。是的。落日也有味道,在大自然中徜徉,我们的感官似乎也有了通感的灵异。落日的落寞其实不光是视觉上的,我们的味觉也感到了它的不同味道。戈壁,是的又是戈壁。戈壁的落日有着酽茶的味道。没有遮掩,广袤的地平线。     

资源的节约利用

编者按:脚下坚实富饶的土地,每年能收获金黄的稻米;环绕屋后的青山,春天有漫山遍野的鲜花,秋天有数不清的野果;一弯清盈的绿水,流淌着四季的欢歌,奔向远方……这是我们梦寐难求的桃花源般的生活。然而,这种宁静致远的生活终将被发展的车轮碾过。在建设现代化这趟快速飞奔的列车上,金黄的稻浪少了,漫山的鲜花少了,青山绿水也少了……历来,发展与保护资源就是一对冤家,在发展趋势不可逆转的情况下,怎样才能保证"发展"与"保     

会治病的石头

粗看起来,治病与我们常见的石头是风马牛不相及的事情,然而,两者之间却有着千丝万缕的联系.大家知道,自古以来,中医经过"望、闻、问、切"之后,便要开药方用药.中国古代的药物学自成一个体系,历代皆称之为"本草".而中医药在其分类中包括了动物药、植物药和矿物药这三个基本的类别.历代本草上讲的矿物药是从广义上讲的,既包括了矿物和岩石等一些天然形成的无机物,也包括了一些古生物的化石和琥珀.下面介绍的是一些矿物、岩石和化石在中药里的名称,基本特征和用途,以开阔眼界,增长知识.     

Web服务器端二进制验证系统设计

随着网络技术的不断发展,Web信息系统的安全性与服务器端的系统安全应用紧密联系在一起,为了保证存在于Web服务器上的服务过程,例如网络数据库、数据库应用系统、文件服务等在网络应用中不被非法用户使用,提出通过引入二进制验证文件的方法,利用设计的软件对服务器端的ASP程序进行验证,并且在成功连接数据库后实时地对验征文件进行验证码位修改及加密.通过这种方法可以达到对ASP连接过程安全控制的目的.     

亲亲土泥

"泥土",这是一个多么平凡的词语,但是又有什么词语能比它的含义更深刻、更厚重呢?当我们"呱呱坠地"来到这个世界的时候,承接我们生命的便是这厚实的泥土,滋养我们成长的也是这厚重的泥土。尽管它是那样的贫瘠,那样的匮乏,但它像母亲似     

从结构主义到转换生成语法

20世纪极具影响力的两大理论流派--美国结构主义描述性语言学和乔姆斯基的转换生成语法都曾引起现代语言学领域的革命.尽管转换生成语法激烈反对结构主义描述性语言学的语言哲学思想,从方法论的角度来看,转换生成语法和结构主义其实是一脉相承.     

Thermohaline structure inhomogeneity associated with polynia at the northern margin of Emery Ice-shelf

Based on the hydrographic data in austral summer during the 22nd Antarctic Expedition of China(2005/2006),some features can be found about the northern margin of Emery ice shelf as follows.The heat content in the surface layer(0-50 m) at the eastern end and the western end of the ice-shelf margin is much higher than that at the middle.The upper mixing-layer depth and the seasonal thermocline depth at the middle of the ice-shelf northern margin are much shallower than those at the both ends.However there is much less difference between the middle and the ends in the bottom layer.The remote sensing photos show that the inhomogeneity in the surface-layer water is closely related to the spatial distribution of the floes and polynia in the area.     

Phylogenetic analysis of cultivable bacteria isolated from Arctic sea-ice

Phylogenetic analysis based on 16S rDNA of 8 strains of cultivable bacteria isolated from Arctic sea-ice was studied.The results showed that strain BJ1 belonged to genus Planococcus,which was a genus of low mole percent G C gram-positive bacteria;strain BJ6 belonged to genus Burkholderia of β-proteobacteria and the rest 6 strain all belonged to γ-proteobacteria,of which strain BJ8 was a species of Pseudoalteromonas,strain BJ2-BJ5 and BJ7 were members of genus Psychrobacter.Phylogenetic analysis also indicated that bacteria of genus Psychrobacter of the isolates formed a relatively independent phylogenetic cluster in comparison with other bacteria belonged to genus Psychrobacter.     

Foreword

正Rapid changes of Arctic sea ice cover have been in the focus of the international climate research community in recent years.Quite a few of nations have completed a large number of related surveys and research projects in the Arctic Ocean.Up to now,China has performed six research cruises to the Arctic Ocean resulting in a significant volume of research output.Improved knowledge on the atmospheree-sea ice-ocean interactions in the Arctic is a     

Exposure ages and radiogenic ages of ureilite(GRV 024516) and ordinary chondrite(GRV 024517) from Antarctica

The GRV 024516 and GRV 024517 meteorite samples collected from Grove Montains,Antactica are ureilite and H5 ordinary chondrite,respectively.Based on the study of mineralogy-petrology,the cosmic-ray exposure ages and gas retention ages of these two meteorites were determinated and calculated.Their cosmic-ray exposure ages are 33.3 Ma,51.7 Ma,and gas retention ages are 1936.8 Ma and 3720 Ma,respectively.The ureilite contains diamond,graphite and amorphous C,which are mainly carrier of noble gases indicating obviously shock metamorphism effects,which induced 40Ar partial loss.The H5 chondrite indicates thermal metamorphism of parent body,its gas retention age fall the range between 3220 Ma and 4510 Ma of the least shocked H5 chondrites     

Information for authors

正1 Aims and Scope Advances in Polar Science(APS)is an international,peer-reviewed journal jointly sponsored by the Polar Research Institute of China and the Chinese Arctic and Antarctic Administration.APS is a comprchensive academic journal dedicated to presentation of multi-disciplinary achievements in Arctic and Antarctic expeditions and research.Its primary purpose is to publish achievements in fundamental research,applied     

Advances in Polar Science CONTENTS(Volume 25,2014)

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Guide to Authors： Journal of Mountain Science

<正>AIMS AND SCOPE(Editorial Policy)The Journal of Mountain Science(JMS)is devoted to mountains and their surrounding lowlands-ecoregions of particular global importance,with a particular emphasis on the important highlands/mountains in the world,such as the Tibetan Plateau,the Himalayas,the Alps,the Andes,the Rockies and many other mountain ranges of our planet.     

Journal of Mountain Science(JMS)

<正>The Journal of Mountain Science(JMS),founded in2004,is an international English-language journal on mountain sciences.JMS is supervised by the Chinese Academy of Sciences(CAS),sponsored by the Chengdu Institute of Mountain Hazards and Environment,CAS,published by Science Press China,and distributed by Springer exclusively throughout the world(excluding Mainland China).The JMS is published bimonthly,fulltexted in SpringerLink and CNKI,indexed/abstracted by