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1.
《中国科学院院刊(英文版)》2013,(3):151-153
Ocean is the largest carbon reservoir on Earth. By taking up about one-third of all human carbon emissions, it has effectively reduced atmospheric carbon dioxide and eased global climate change. Scientists have studied extensively on the mechanisms of C02 absorption in the ocean, or the so-called ＂carbon pumps＂, from physical to chemical and biological pumps. Microbes, traditionally regarded as organic matter decomposers, had been long neglected until a few years ago Prof. JIAO Nianzhi from Xiamen University proposed the concept ＂microbial carbon pump （MCP）＂ illustrating that these tiny marine inhabitants are also producers of refractory dissolved organic carbon, a persistent form of matter which can be stored in the ocean for thousands of years and thus constitute an ideal carbon pool. Today, the MCP concept has been widely accepted as a promising sequestration strategy, and Prof. JIAO is working hand in hand with scientists from all over the world under the Scientific Committee on Oceanic Research （SCOR） Working Group 134 to better understand how to use these magic creatures for preserving carbon in the deep blue. 相似文献
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To address the current energy crisis people are exploring new ways of synthesizing fuels with biomass. As biomass contains nearly % of oxygen in addition to hydrogen carbon in its composition the key to turning it into high-grade fuel for an internal-combustion engine lies in the technology that could liquefy biomass via deoxidation by making the best use of its contents of hydrogen carbon without adding additional hydrogen or generating water.…… 《中国科学院院刊(英文版)》2007,21(3):144
To address the current energy crisis, people are exploring new ways of synthesizing fuels with biomass. As biomass contains nearly 50% of oxygen in addition to hydrogen and carbon in its composition, the key to turning it into high-grade fuel for an internal-combustion engine lies in the technology that could liquefy biomass via deoxidation by making the best use of its contents of hydrogen and carbon without adding additional hydrogen or generating water. 相似文献
3.
《中国科学院院刊(英文版)》2016,(4)
正On the early morning of December 22,2016,China joined Japan and the U.S.to become a third country in the world to have launched a satellite that is dedicated to the precise measurements of carbon dioxide from space.Sent from Jiuquan Satellite Launching Center to about 700 km above the Earth,the620 kg TanSat aims to acquire CO_2 concentrations in the global atmosphere and identify carbon sources and sinks 相似文献
4.
《中国专利与商标》2007,(2)
This is the case in which the court in Shanghai has es- tablished the very first well-kown mark since the amended Trademark Law entered into force in 2001.On 31 December 2005,the Shanghai No.2 Intermediate People's Court ren- dered the ruling of first instance,establishing that the"STARBUCKS"and"星巴克"(the Chinese translation of"STARBUCKS"pronounced as"xingbake") trademarks as well-known marks and deciding that the defendant's act con- stituted trademark infringement and unfair competition.Dis- satisfied with the ruling the defendants appealed to the Shanghai Higher People's Court,which made the ruling to have upheld the former ruling.In this article an in-depth study is presented of the establishment of the well-known marks in suit and the decision on the trademark infringement and unfair competition and on the amount of damages. 相似文献
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《中国专利与商标》2006,(4)
On 27 October 2001, the Standing Committee of the People's Congress reviewed and passed the Amendment to the Copyright Law of the People's Republic of China. In Article 10 of the amended Copyright Law as of 2001 has been incorporated a new subject matter under the copyright protection: the right of communication through information network, that is, the right to make a work available to the public by wire or by wireless means, so that people may have access to the work from a place and at a time individually chosen by them. This is the first time to have put the right of communication through information network in place in the law in China. But, the legislators did not make any specific provisions concerning this right in the Copyright Law. 相似文献
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《中国科学院院刊(英文版)》2010,24(1):12-13
The sink-source imbalance in the global carbon cycle is a ＂hot spot＂ for scholars on the subject in the present-day world. So far, the CO2 sink＇s location, size, variation and the mechanism underlying its ever-changing trend are all controversial topics. Currently, the mainstream research in this aspect is concentrated mainly on the organic carbon＇s cycle while little, if not, attention is paid to the current status of the inorganic carbon sink. 相似文献
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《中国科学院院刊(英文版)》2015,(2):120-121
<正>Efficient biological degradation of cellulosic biomass has been recognized as one major bottleneck in production of cellulosic liquid fuels or biogas,and as the one key step in the carbon cycle of biosphere.In a new work published online in Nature Communications on 24 April,2015,a research team from the Single-Cell Center of the Qingdao Institute of Bioenergy and Bioprocess Technology,Chinese Academy of Sciences discovered a new mechanism in microbial degradation of lignocellulose,by reporting that cellulosome stoichiometry is regulated by selective RNA 相似文献
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《中国专利与商标》2006,(1)
I. Significance of Right of Priority The doctrine of right of priority, originating from the Paris Convention for the Protection of Industrial Property, and purporting to facilitate application for patents and trademarks in different countries, means that when an applicant files, within a given time limit after filing an application in a member state of the Paris Convention, another application in respect of the same subject matter in another member state, he/it may take the date of filing of the first application as the date of filing of the later application (referred to as the date of priority). The basis on which a foreign right of priority is established lies in that most countries adopt the first-to-file doctrine in patent grant. That is, it is presumed under the law that a person who first files an application is one who first accomplishes the in- 相似文献
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《国家科学评论(英文版)》2014,(1)
In recent years,long-term,high-resolution records from the deep sea and ice-cores have ofered new research opportunities for Quaternary science.Paleoclimate studies are no longer restricted to individual glacial cycles,but extend to long-term(≥105 yr)processes across those cycles.Ocean Drilling Program Leg 184 of the South China Sea in 1999 uncovered well-preserved sediment sections,in which three long-term cycles in Pleistocene carbon isotope(δ13C)sequence have been found and demonstrated to be common in the global ocean.Subsequent discoveries conirm the existence of long-term processes of 105yr in both the hydrologic(ice-sheet changes)and carbon(biogeochemical changes)cycles,posing the question whether the two processes are related.he present review shows that the long-eccentricity cycles prevail throughout theδ13C and other biogeochemical records in geologic history,and 400-kyr cycles in the oceanicδ13C sequence before the Quaternary can be hypothetically explained by changes in ratio between particulate and dissolved organic carbon(POC/DOC)in the ocean,depending on the monsoon-controlled nutrient supply.his is a‘DOC hypothesis’.However,ocean restructuring at 1.6 Ma marked by the isolation of a sluggish abyss under the Southern Ocean has obscured the long-eccentricity 400-kyr signal in oceanicδ13C.he last million-year period has experienced two major changes in the climate regime,namely the mid-Pleistocene transition(MPT)centered at 0.9 Ma and the mid-Brunhes event(MBE)around 0.4 Ma.he MPT and MBE were preluded byδ13C maxima-III(δ13Cmax-III)～1.0 Ma andδ13Cmax-II～0.5 Ma,respectively.Together with similar hydroclimatic phenomena over corresponding glacial cycles,the two groups of hydrologic and biogeochemical events appear to have been driven largely by oceanographic changes in the Southern Ocean.herefore,we interpret that the long-term biogeochemical processes originating from the Southern Ocean must have played a crucial role in Quaternary ice-sheet waxing and waning. 相似文献
10.
《中国科学院院刊(英文版)》2006,20(4):250-250
Soil respiration, which is primarily the only output approach for CO 2 exchanges in soils between the global terrestrial ecosystem and the atmosphere, exerts a direct influence on the speed of carbon turnover rate of the soil. On a global scale, soil resp… 相似文献
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本文采用有限元方法对金刚石/铜复合材料的传热性进行数值模拟,建立多颗粒二维随机分布复合材料测试模型,研究金刚石颗粒体积分数、颗粒半径、颗粒形貌、粒径比及界面因素对金刚石/铜复合材料传热性能的影响规律及机制。结果表明:金刚石/铜复合材料的热导率随着金刚石体积分数的增大而升高;热导率随着粒径的增大而呈现先升高后降低的规律;方形金刚石颗粒的复合材料热导率高于球形颗粒的复合材料;在金刚石体积分数一定时,适量配比细颗粒可提高材料热导率;对金刚石表面镀覆层新物质(W、Cr、Ti)来等效金刚石和铜二者物理结合时的界面热阻。 相似文献
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金刚石膜具有天然金刚石相拟的优异特性，预计会有十分广阔的应用前景，本文介绍了一种新颖的金刚石膜生长技术－强流电子增强化学气相沉积法，它结合了传统的热丝法和等离子体法各自的优点，成为一种具有较高生长速率，能够制备大面积均匀金刚石膜的技术，对用这种方法制备的金刚石膜进行了喇曼、扫描电镜和Ｘ－Ｒａｙ衍射分析，并对这项技术的优点作了阐述。 相似文献
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在产学研合作的基础研究阶段,提出了以大学为主导的产学研"菱形"体系及各层面的关系,并就以大学为主导的多种合作模式进行了较为详细的研究与阐述. 相似文献
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基于钻石模型的重庆市汽车产业集群发展研究 总被引：1，自引：0，他引：1
运用波特的"钻石模型",从生产要素.需求条件.相关及支持产业,企业战略、结构和同业竞争,机会,政府等6个方面对重庆市汽车产业集群进行研究;分析重庆市汽车产业现状和存在的问题;最后从政府和企业两个方面提出重庆市汽车产业集群发展的对策,这对我国其它地区汽车产业集群的发展具有一定的指导意义. 相似文献
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基于钻石模型的义乌会展业竞争力的影响因素分析 总被引：2，自引：0，他引：2
以波特的钻石模型为框架,从"生产要素"、"需求条件"、"相关和支持性产业"、"企业战略、结构与竞争对手"、"机会"以及"政府"六个角度,分析义乌会展业竞争力的影响因素,提出增强义乌会展业竞争力的建议对策. 相似文献
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基于钻石模型的两类产业集群创新能力比较研究——浙江玉环和上海嘉定汽车产业集群创新能力比较 总被引：1，自引：0，他引：1
在调查问卷和深度采访的基础上,采用ANOVA、Krushal-Wallis(K-W)和TUKEY等分析方法对数据进行处理,对基于小城市(县)和大城市的产业集群创新能力进行实证研究;基于波特钻石模型,通过对创新十大要素的比较分析,得出了两种类型产业集群创新能力的优势劣势,指出在大城市郊区建立创新性的产业集群有更多的有利条件,同时指出比较双方有待加强的方面。 相似文献
18.
应用分子动力学模拟的方法,研究了纳米金刚石颗粒的导热系数对温度和颗粒尺寸的依存关系。为了得到较为准确的模拟结果,采用了平衡态分子动力学模拟的方法。计算了较长时间的热流自相关函数,并得到了导热系数的收敛结果。结果表明,纳米金刚石颗粒由于尺寸的影响,导热系数低于体材料金刚石的导热系数;随温度的升高,导热系数出现一个峰值,该峰值点的温度小于体材料金刚石出现峰值点的温度;随颗粒尺寸的增大,导热系数增加,我们预测导热系数将在一定的颗粒尺寸时收敛于体材料金刚石的导热系数。 相似文献
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近现代以来,意大利—英国—法国—德国—美国相继成为世界科学中心。经济繁荣、思想解放、教育兴盛、政府有力支持等社会因素以及科学成果涌现时机因素共同导致了世界科学中心的形成、演进与更替,五要素钻石模型可给予有效分析。科学与技术关系日益紧密,未来世界科技中心将不只一个,而是呈现出多中心并进、加速向亚太地区转移的趋势,并具有网络化、全球化等新特点。新一轮科技革命与产业变革加速演进,全球科技创新进入前所未有的密集活跃期,为我国成为世界科技中心提供了难得的"机会窗口",当务之急是解放思想,完善人才政策,营造创新友好的环境,加快世界教育中心建设,加大政府支持力度,破解发展面临的难题,抢占前沿研究与颠覆性技术创新的先机,实现中华民族伟大复兴的中国梦,为世界和平发展和永续繁荣作出更大贡献。 相似文献
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文章在介绍产业国际竞争力概念和国家钻石模型的基础上,用国家钻石模型分析了影响我国电解铝工业国际竞争力的因素,并提出了提升我国电解铝工业国际竞争力的几点措施。 相似文献