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Abstract: All kinds of natural and human factors, including climate, organism, landform, m other rock and material, and human disturbance, influenced the genesis and devel opment of soils in Shunde Ecological Paradise, Guangdong Province.
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文摘:广东省顺德生态乐园内的土壤形成发育受气候、生物、地形地貌、母质母岩和人为干扰等5大因素的影响，其中人为活动是导致土层结构破坏和水土流失的主要原因。 |
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Abstract: Along with information technology swift and violent development,Electronic commerce by the speed development which estimates with difficulty.Electronic commerce is changing social economy each aspect,Electronic commerce has the broad prospect.Bu
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摘要：随信息技术迅猛发展,电子商务以难以估量的速度发展.电子商务改变着社会经济的各个方面,电子商务有着广阔的前景.但电子商务在法律、税收、安全等方面存在着很多问题,要发展电子商务还必须从加快普及电子商务常识,大力推进企业信息从建设、培养电子商务人才等方面下功夫.文章通过对当前国内外,流行的电子商务的发展现状进行描述,指出我国电子商务存在的制约因素,寻找符合我国国情的电子商务发展的对策。 |
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Abstract: Although optoelectronics imaging systems asvideo-sets,low light level and thermal imaging systems have been widely used for militaryand civil purposes, the matching between optoelectronics imaging systems and human visionremains to be a common p
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文摘:以电视、微光成像和热成像系统为代表的光电成像系统在军事和民用上有着广泛的用途，但光电成像系统与人眼视觉的匹配问题仍是按现有理论和方法难以准确解释或定量描述的普遍问题。 |
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Abstract: Although the inapplicable scope of the Seismic Zoning Map has been stipulated in the related documents, the provided clauses are relatively simple, and the phenomenon of expanding the applicaple scope of the Seismic Zoning Map still exists in so
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文摘:虽然在有关的文件中已对地震区划图的不适用范围作了规定，但规定条文比较简略，社会上仍存在夸大其适用范围的现象。 |
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Abstract: Although the rate of contribution by science and technology to Chinese economy development has increased from 10％ to 30％ since China's opening up and reforming ,there is still a long way to mn comparing with the advanced countries.
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文摘:我国科技成果对经济增长的贡献率，虽然已从改革开放前的10％提高到了30％左右，但是同发达国家比较相距甚远。 |
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Abstract: Amorphous hydrogenated carbon films have been deposited with benzene in an electron cyclotron resonance (ECR) plasma system.
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文摘:用苯作源气体在一个微波电子回旋共振离子体系统中沉积了含氢非晶碳薄膜，研究了沉积参数对膜的生长速率的影响。 |
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Abstract: An algorithm is presented for better legal solution in detailed placement of large scale mixed macros and standard cells IC design.Due to the limitation of computing complexity,an effective and efficient initial placement is very important for d
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文摘:以大规模混合模式布局问题为背景,提出了有效的初始详细布局算法.在大规模混合模式布局问题中,由于受到计算复杂性的限制,有效的初始布局算法显得非常重要.该算法采用网络流方法来满足行容量约束,采用线性布局策略解决单元重叠问题.同时,为解决大规模设计问题,整体上采用分治策略和简化策略,有效地控制问题的规模,以时间开销的少量增加换取线长的明显改善.实验结果表明该算法能够取得比较好的效果,平均比PAFLO算法有16％的线长改善,而CPU计算时间只有少量增加. |
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Abstract: An algorithm of minimizing the number of buffers under certain delay constraint with accurate delay models is presented.Given a two-terminal net,the algorithm can minimize the total number of buffers inserted to meet the delay constraint.A high
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文摘:提出了在精确时延模型下,满足时延约束的缓冲器数目最小化的算法.给出一个两端线网,该算法可以求出满足时延约束的最小缓冲器数目.运用高阶时延模型计算互连线的时延,运用基于查找表的非线性时延模型计算缓冲器的时延.实验结果证明此算法有效地优化了缓冲器插入数目和线网的时延,在二者之间取得了较好的折中.算法的运行时间也是令人满意的. |
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Abstract: An algorithm to resolve the coupling effect problem is proposed during the cross point assignment (CPA) stage.In the algorithm,the priority queue concept and the rip-up and reroute strategy are combined to control crosstalk noise caused by inter
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文摘:提出了一种在过点分配阶段解决噪声耦合效应问题的算法.该算法采用优先队列同拆线重布策略相结合的方法,控制由互连线耦合电容引起的串扰噪声.算法中,首先按照线长和约束限制,将线网划分到若干个优先队列中.然后,将每个优先队列的过点分配问题转换为线性分配问题.在完成一个线网队列的分配后,通过过点分配后处理过程检查串扰约束满足情况,对违反约束的线网对进行拆除,放入后续线网队列进行重新分配.实验数据表明,该算法能够取得好的效果. |
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Abstract: An antifreezing ventilation system at winter in a gold mine is designed by use of the earth temperature preheating technology.
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文摘:利用地温预热入风流技术，设计了金厂沟梁金矿冬季防冻通风系统。 |
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Abstract: An economic method by which SO2 in a flue gas can be removed using the alkaline matters in bolder water from an industrial boiler house is introduced briefly.
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文摘:简要介绍了工业锅炉房利用锅炉水中的碱性物质除去烟气中SO2的经济方法。 |
