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1.
The first state-level lab in China’s energy sector, Dalian National Laboratory for Clean Energy was officially inaugurated at the Dalian Institute of Chemical Physics (DICP) on October 10, 2011. It will focus on the study of the clean conversion and use of fossil fuels, clean and renewable energy technologies as well as strategic planning to address national  相似文献   

2.
<正>The rapid growth of world economy is increasingly encountered by the limitations in the supply of food,energy and resources as well as the challenge of environmental protection.With an impressive economic growth rate over the past three decades,China is now facing these challenges even more seriously than other countries.Currently,China is striving to transform the traditional inefficient mode of production into a low-carbon,circular,and ecological economy for sustainable development based on technology innovation.As a novel interdisciplinary academic fi eld developed based on modern biology and systems science,Synthetic Biology integrates both knowledge and technology  相似文献   

3.
I. The Urgency & Necessity for Developing Biomass EnergyEnergy sources are the mate- rial basis for subsistence and de- velopment of the contemporary society. A safe, reliable supply and efficient, pollution-free utilization of them are fundamental guarantees for the sustainable development of China’s economy as well as the in- surance for China’s national security. During the past two decades, national energy consump- tion in this country has doubled as a result of the soaring growth of …  相似文献   

4.
<正>1.High-voltage DC transmission technology is the key to interconnecting large-scale power generation from renewable energy China has plentiful renewable energy sources,which will serve as the dominant energy sources in the future.Statistics show that each year,all land in China receives a total solar radiation equivalent to the energy of 2,400billion tons of standard coal.China’s total reserve of wind energy at ten meters above the earth amounts to about3.226 billion kW,of which one billion kW is available for development and utilization.The theoretical reserve of China’s hydraulic power is nearly 700 million kW,accounting for 40%of the total conventional energy sources of the nation.By the end of 2011,the installed capacity of the gridconnected renewable-energy-based power generation in China had reached 51.59 million kW,accounting for 4.89%  相似文献   

5.
<正>With the rapid economic growth and the increasing pressures on land resources,energy and space,the ocean will become one of the main areas of social and economic activities in future.Coastal countries and regions have attached great importance to the development of marine economy,and many countries are developing strategies to build themselves into sea powers through the research and development of marine science and technology.The Chinese government has also made up a strategic decision to build strong marine power through independent technological breakthroughs and to boost the rapid development of its marine industry.  相似文献   

6.
<正>As the largest-scale reaction process of energy and matter transformation as well as the largest-scale solar energy utilization on earth,photosynthesis providesorganic compounds,energy and oxygen for almost all life activities.Therefore,the process of photosynthesis can be considered to be closely related to the solutions for such  相似文献   

7.
Chemistry has a central role in science,and synthesis plays an essential role in chemistry. Synthetic substances and materials have demonstrated a significant impact in determining the quality of our life in the last century. Although chemical synthesis has now reached an extraordinary level of sophistication,there is still vast room for improvement. In this century,to be more tightly merged with other fields such as material and life sciences,to generate more interdisciplinary areas,is an inevitable trend in synthetic chemistry. Nowadays,synthetic chemistry should pursue "GREEN" process. In this context,the atom economy,the E-factor and 3Rs (reduction,recycling and reuse) of resources must be taken into account in synthetic industry. The greatest challenge of synthetic chemistry,not only,will be immense responsibility to tackle a range of existing or predicted social and global issues associated with resources,energy,materials,the environment,food and health,but also the redeeming the negative impression of synthetic chemistry in public.  相似文献   

8.
<正>1.Industrial biomanufacturing is an important part of bioeconomy development Biomanufacturing is a new industry for large-scale material processing and transformation via biological function to provide industrial goods for social development.It uses microbial cells or enzyme proteins to catalyze chemical synthesis and biomass feedstock to synthesize energy chemicals and materials in order to produce energy and chemicals as a replacement for the petrochemical industry route[1].Based on the latest development in life sciences,it mass-produces the needed energy and chemicals in an advanced,highly efficient and environmentallyfriendly way through the combination of biological and manufacturing technologies,with design and improvement of modifi ed organisms as the core.Currently,through the advanced biomanufacturing process,many materials can be produced such as basic  相似文献   

9.
<正>1.Development of renewable energies brings challenges to the power grid technologies With the development of power generation technologies for renewable energies,the pattern of clean energy system,in which the renewable energies play the principal role and the electrical power is the main terminal energy,will take shape gradually.In 2012,for example,the global installed capacity with the renewable energies exceeded 1,470 GW(out of which 480 GW was non-hydro renewable energies),achieved a year-on-year increase of 8.5%,accounting for more than 26%of the total global installed capacity,and supplying 21.7%of the electrical power in the globe.The installed capacity of power generation with the solar energy first toppped the 100 GW mark,and the solar  相似文献   

10.
The ecological water diversion project in the Heihe River Basin is the irst successful case in China in which the ecological systems in a river basin have been rescued. his project serves as a valuable example for the management of ecosystems in other inland river basins. his paper reviews the integrated studies of the water–ecosystem–economy relationship in the Heihe River Basin and concludes that sustainable development in inland river basins requires the basin to be considered as a whole, with the relationships between the upstream, midstream and downstream areas of the basin coordinated appropriately. Successful development in these basins will be relected in an improved output per cubic meter of water and the implementation of integrated river basin management practices.  相似文献   

11.
Aresearch group led by Prof. ZHAI Qiwei from the Institute for Nutritional Sciences under the CAS Shanghai Institutes for Biological Sciences has discovered that even relatively low doses of resveratrol--a chemical found in the skins of red grapes and in red wine--can improve the sensitivity of mice to the hormone insulin, according to a report in the October,2007 issue of Cell Metabolism. As insulin resistance is often characterized as the most critical factor contributing to the development of Type 2 diabetes, the findings“provide a potential new therapeutic approach for preventing or treating” both conditions, the researchers said.  相似文献   

12.
CAS should stick to the principle of rendering service to, and giving impetus for, the development of China＇s science enterprise by making S＆T innovations, said CAS President LU Yongxiang. The CAS president made the remarks in a recent talk to communicate the gist of the winter session of the Party＇s Leading-member Group at CAS, which was held from 7 to 11 January in Beijing.  相似文献   

13.
This study examined how students who had no prior experience with videoconferencing would react to the use of videoconferencing as an instructional medium. Students enrolled in seven different courses completed a questionnaire at the beginning of the semester and again at the end of the semester. Students at the origination and remote sites did not differ in their reactions toward videoconferencing but there was a significant difference for gender. Women reacted less favorably to videoconferencing. Compared to the beginning of the semester, students reported significantly less positive attitudes toward taking a course through videoconferencing at the end of the semester. There were no significant differences in students' attitudes toward videoconferencing across courses at the beginning of the semester but there were significant differences across the courses at the end of the semester. The results suggest the need for better preparation for both students and instructors.  相似文献   

14.
With great care, Dr. ZHOU Zhonghe takes out a package wrapped by cotton tissue from a drawer and says: "This is the gem of our collections: the fossil of a bird that lived 125 million years ago!" Then, pointing at a tiny mound, he explains: "Look, this is the claw and that is the head. It was in the egg shell and ready to hatch ... The species fell into a family of waterside inhabitants."  相似文献   

15.
Ajoint study by Prof. ZHANG Zhibin from the CAS Institute of Zoology and his co-workers from Norway, US and Swiss have indicated that historical outbreaks of migratory locusts in China were associated with cold spells, suggesting that China＇s projected climate warming could decrease the pest＇s numbers. The study was published in Proceedings of theNational Academy of Sciences on 17 September, 2007.  相似文献   

16.
A computer-mediated group is a complex entity whose members exchange many types of information via multiple means of communication in pursuit of goals specific to their environment. Over time, they coordinate technical features of media with locally enacted use to achieve a viable working arrangement. To explore this complex interaction, a case study is presented of the social networks of interactions and media use among members of a class of computer-supported distance learners. Results show how group structures associated with project teams dominated who communicated with whom, about what, and via which media over the term, and how media came to occupy their own communication niches: Webboard for diffuse class-wide communication; Internet Relay Chat more to named others but still for general communication across the class; and e-mail primarily for intrateam communication. Face-to-face interaction, occurring only during a short on-campus session, appears to have had a catalytic effect on social and emotional exchanges. Results suggest the need to structure exchanges to balance class-wide sharing of ideas with subgroup interactions that facilitate project completion, and to provide media that support these two modes of interaction.  相似文献   

17.
Active biological molecules and functional structures can be fabricated into a bio-mimetic system by using molecular assembly method. Such materials can be used for the drug delivery, disease diagnosis and therapy, and new nanodevice construction.  相似文献   

18.
Electronic data interchange (EDI) provides means for interorganizational communication, creates network externalities, requires an advanced information technology (IT) infrastructure, and relies on standards. In the diffusion of such innovations, institutional involvement is imperative. Such institutions contain governmental agencies, national and global standardization organizations, local government, and nonprofit private organizations like industry associations. The last type of organizations we call intermediating institutions. They intermediate or coordinate ("inscribe") the activities of a group of would-be adopters. Unfortunately, little is known of how these organizations shape the EDI diffusion trajectory. In this article we examine one specific type of intermediating organizations?industry associations?and how they advanced the EDI diffusion process in the grocery sectors of Hong Kong, Denmark and Finland. We identify six institutional measures, placed into a matrix formed by the mode of involvement (influence vs. regulation) and the type of diffusion force (supply push vs. demand pull), that can be mobilized to further the EDI diffusion. Industry associations were found to be active users of all these measures to varying degrees. Their role was critical especially in knowledge building, knowledge deployment, and standard setting. Furthermore, institutional involvement varied due to policy and cultural contingencies and power dependencies.  相似文献   

19.
This essay focuses on universal service and the Internet as means to support social and political participation. The emphasis on access to telecommunications systems in conventional approaches to universal service is contrasted with access to content. A model of the information environment is described that accounts for the roles of content and conduit, both of which are necessary conditions to achieve true access. A method is outlined for employing information indicators to observe or measure the information environment.  相似文献   

20.
The increasing prospects of digital piracy has prompted the perceived need by electronic publishers to adopt technical systems of protection, and governments to reform their copyright laws. This article is a preliminary study of the management of intellectual property by electronic publishers, defined as those involved in the production of online databases, and CD-ROMs. It focuses on three main issues: (1) how electronic publishers view the increasing threat of piracy; (2) the methods of protection employed to protect intellectual property in digital format; and (3) the importance of technological protection of intellectual property in electronic publications. The analysis is based on a sample of 23 UK electronic publishers. The interviews revealed an interesting assortment of protection methods and did not show that technological protection was a preferred way. Instead, the means of protection, in addition to copyright law, comprised niche markets, pricing, trust, bad publicity, and nontechnical and technical means.  相似文献   

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