天喻信息公司接受“金盾工程”总投资2.2亿元

我校武汉天喻信息产业股份有限公司总经理张新访与省公安厅副厅长赵治飞3月6日在武汉科技会展中心举行总承包合同签字仪式,这标志着这项总投资2.2亿元,预计建设周期2～3年的湖北省“金盾工程”第一个大型信息化工程项目——湖北省公安交通管理信息系统的建设正式启动. 经过激烈竞标,武汉天喻信息产业股份有限公司最终为本工程的总承包商.天喻信息公司在对项目的优化设计中立足于高标准和前瞻性,将现代通信技术、网络技术、IC卡技术、软件技术等多项高新技术、现代管理方法和交通管理的实际紧密结合,提出的整个信息系统包括机动车辆管理、驾驶员管理、交通违章管理、交通事故管理、交通监控指挥、财务管理、人事管理、办公自动化等 13个系统.项目建设完成后,将通过覆盖全省的计算机网络对全省180多万辆机动车、200多万名驾驶员以及交通违章、交通事故、交通指挥等进行全自动化的网上管理,从而大大提高效率,对湖北省的交通管理产生积极而深远的影响.据了解,湖北省将上马的这套系统在全国同类项目中功能是最完备的,技术是最先进的.     

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白头叶猴和村里人

正在广西崇左,山林庇佑的不仅仅是白头叶猴,还有荒野之歌传唱下去的希望,也是人类的希望。2016年,我在喀斯特石山下守候回到洞穴夜宿的白头叶猴,它们习惯在洞口排泄,久而久之,崖壁上"挂"满了长长的褐色条带。在暮色中,怀抱着小崽的白头叶猴聚集在一起,那场景就和抚育孩子的家长们在小区广场上交谈一样温馨。白头叶猴是一种半树栖半岩栖的灵长动物,因其白头白肩、尾部半白半黑而得名,但幼崽全身却是金黄色的,一年之后才慢慢变成黑白相间的模样。它们以家庭为单位群居在喀斯特石山上,白天跃动在丛林间玩耍觅食,夜间在岩壁上休憩。20世纪50年代初,由北京动物园谭邦杰先生发现并命名,是第一种由中国人命名的灵长类动物。2002年,白头叶猴被列为全     

论先秦文书

研究中国古代文书,先秦时期是非常重要的,一方面因为这一历史阶段,时空的跨度大,又经历了人类发展史上最初的两个社会形态——原始社会与奴隶社会,一切都被蒙上了一层神秘的色彩;另一方面,文书作为社会交流与管理的手段,由萌芽直至比较定型,深受时代的影响,内容特别丰富,变化特别频繁,其中有不少值得我们探讨的问题。八十年代以来,国内出版的众多的文书学,秘书学著作,对这些问题,有的作过介绍,有的进行过讨论,本文仅就此谈几点敷浅的看法,就正于学者、专家。     

湖泊扩大之谜破解

地质记录显示，在阿拉斯加，成千上万个神秘湖泊有着一模一样的外形，而且数千年来一直在扩大。它们是世界上已知扩大速度最快的湖泊。     

Recuperation of nitrogen cycling in Amazonian forests following agricultural abandonment

Phosphorus (P) is generally considered the most common limiting nutrient for productivity of mature tropical lowland forests growing on highly weathered soils. It is often assumed that P limitation also applies to young tropical forests, but nitrogen (N) losses during land-use change may alter the stoichiometric balance of nutrient cycling processes. In the Amazon basin, about 16% of the original forest area has been cleared, and about 30-50% of cleared land is estimated now to be in some stage of secondary forest succession following agricultural abandonment. Here we use forest age chronosequences to demonstrate that young successional forests growing after agricultural abandonment on highly weathered lowland tropical soils exhibit conservative N-cycling properties much like those of N-limited forests on younger soils in temperate latitudes. As secondary succession progresses, N-cycling properties recover and the dominance of a conservative P cycle typical of mature lowland tropical forests re-emerges. These successional shifts in N:P cycling ratios with forest age provide a mechanistic explanation for initially lower and then gradually increasing soil emissions of the greenhouse gas nitrous oxide (N(2)O). The patterns of N and P cycling during secondary forest succession, demonstrated here over decadal timescales, are similar to N- and P-cycling patterns during primary succession as soils age over thousands and millions of years, thus revealing that N availability in terrestrial ecosystems is ephemeral and can be disrupted by either natural or anthropogenic disturbances at several timescales.     

Continental ice in Greenland during the Eocene and Oligocene

The Eocene and Oligocene epochs (approximately 55 to 23 million years ago) comprise a critical phase in Earth history. An array of geological records supported by climate modelling indicates a profound shift in global climate during this interval, from a state that was largely free of polar ice caps to one in which ice sheets on Antarctica approached their modern size. However, the early glaciation history of the Northern Hemisphere is a subject of controversy. Here we report stratigraphically extensive ice-rafted debris, including macroscopic dropstones, in late Eocene to early Oligocene sediments from the Norwegian-Greenland Sea that were deposited between about 38 and 30 million years ago. Our data indicate sediment rafting by glacial ice, rather than sea ice, and point to East Greenland as the likely source. Records of this type from one site alone cannot be used to determine the extent of ice involved. However, our data suggest the existence of (at least) isolated glaciers on Greenland about 20 million years earlier than previously documented, at a time when temperatures and atmospheric carbon dioxide concentrations were substantially higher.     

都市新动向——百姓上网

“上海热线”是上海第一个对社会开放的公众信息网。据上海有关方面报道,自去年9月22日“上海热线”开通以来至今,上海寻访人数已达70万人次,“上海热线”的数据库也从过去的6个扩大至60个。“上海热线”的人才信息库栏目、证券之星栏、网上订票、英语学习栏、