共查询到20条相似文献，搜索用时 187 毫秒
1.
2.
3.
为探究技术进步与能源消费的内在关系,本文采用面板门槛回归方法,结合1990—2012年我国省际面板数据构建面板门槛回归模型,以经济发展水平为门槛变量,实证研究了技术进步对能源消费的影响。研究显示:技术进步对能源消费的影响存在显著的"经济门槛效应",当经济发展水平高于门槛值时,虽然技术进步仍会促进能源的消耗,但其推动作用会逐步减弱,且东部地区技术进步对能源消费的促进作用要小于中西部地区。 相似文献
4.
异质性技术进步的碳减排效应分析 总被引：1，自引：0，他引：1
《科学学与科学技术管理》2015,(9)
技术进步是实现节能减排和低碳环保的重要推动力之一,而"一刀切"的技术政策不利于充分发挥技术进步的碳减排效应,因此,有必要对异质性技术进步的碳减排效应进行分解。以我国30个省份2000—2012年的面板数据为样本,通过构建回归模型,实证分析环境技术、能源利用技术、资本体现式技术以及广义技术水平对碳排放的动态影响。结果表明:广义技术进步和能源利用技术进步增加了碳排放,而其他两种技术进步有利于降低碳排放,并且技术进步的碳减排效应存在区域异质性。政策含义:一是提高物质资本的利用效率并降低单位能耗的碳排放,发挥技术进步的碳减排效应;二是采用市场手段降低能源效率的反弹效应;三是强化环境规制和优化产业结构。 相似文献
5.
中国工业部门能源消费反弹效应的估算——基于技术进步视角的实证研究 总被引：2，自引：1，他引：1
反弹效应是能源经济学中一个重要的研究课题,它的大小关系到能源政策的实施效果,在国内尚缺乏关于工业部门的实证检验。因此,本文基于新古典经济增长理论,按照索罗余数的思想估算了中国工业部门1979年-2007年的技术进步贡献率,并利用这一估算结果测算了1979年-2007年中国工业部门能源消费的反弹效应。实证研究的结果表明,1979年-2007年中国工业部门的平均能源反弹效应约为46.38%,而能源反弹效应总的变化趋势成递减状态。由技术进步而产生的能源效率提高,虽然没有使中国工业部门实现预期的节能目标,但总的呈现出能源节约的特征。本文研究的政策含义为:在依靠技术进步提高能源效率的同时,要注意能源价格政策、税收政策等的宏观调控,以实现预期的节能目标。 相似文献
6.
在技术因素用不同指标表示的情形下,通过对能源消费影响因素进行实证分析,均发现经济发展水平、产业结构因素、城市化进程、外商直接投资、能源价格变动、技术创新(进步)以及行之有效的政策制度,是影响地区能源消费强度的重要因素.能源价格的变动对于技术创新有强烈的诱致作用,能源价格的变动在很大程度上是通过诱致性技术创新对能源消费起作用的.从整体上看,技术创新(进步)对于能源消费弹性的确具有反弹效应,但由于目前中国整体的技术创新(进步)水平还未达到限值的阶段,因此加快技术创新(进步)水平还将是降低能源消费强度的重要手段. 相似文献
7.
8.
9.
10.
基于中国2000~2013年的省际面板数据,以第三产业与第二产业产值之比度量产业结构变动,在将地区市场化水平纳入分析框架的前提下,采用门槛回归分析方法,对产业结构变动与能源消费之间的关系进行实证考察.结果表明,产业结构变动对能源消费存在显著的基于地区市场化水平的"双门槛效应",即产业结构变动与能源消费之间存在显著的非线性关系,随着地区市场化水平的提高,产业结构变动对降低能源消费的作用越来越大. 相似文献
11.
《中国科学院院刊(英文版)》2008,22(1):13-14
Aresearch project on the greenhouse cultivation of Swertia chirayita Buch Ham, a popular herbal drug used by the Tibetan people against liver and gallbladder diseases, recently passed the acceptance check by a panel of experts under the auspices of Qinghai Provincial S＆T Bureau. The feat was accomplished by researchers from the Lanzhoubased CAS Northwest Institute of Plateau Biology. 相似文献
12.
The research into the origins of domestic animals is of significance not only for understanding their development per se but also for making clear the human society evolution. Although there are evidences to show that pigs were independently domesticated in a variety of places throughout the world the detailed scenario of the origin dispersal of domestic pigs in East Asia remains unclear.…… 《中国科学院院刊(英文版)》2008,22(1):7-7
The research into the origins of domestic animals is of significance not only for understanding their development per se, but also for making clear the human society evolution. Although there are evidences to show that pigs were independently domesticated in a variety of places throughout the world, the detailed scenario of the origin and dispersal of domestic pigs in East Asia remains unclear. 相似文献
13.
Among the galaxy of research development organizations in northwest Beijing's Zhongguancun district known as China's Silicon Valley two are especially well-known to IT researchers: Microsoft Research Asia 《中国科学院院刊(英文版)》2008,22(1):47-49
Among the galaxy of research and development organizations in northwest Beijing＇s Zhongguancun district, known as China＇s Silicon Valley, two are especially well-known to IT researchers： Microsoft Research Asia （MSRA）, and, within a few blocks on the other side of the street, the CAS Institute of Automation （CASIA）. While most people in Chinese scientific organizations strive to move to a large foreign counterpart, Dr. Stan Z. Li （LI Ziqing） moves against the stream. 相似文献
14.
《中国科学院院刊(英文版)》2008,22(1):58-58
As a key component of the national initiative for basic S＆T data and infrastructure development, a nationwide survey on the lake water quality, volume and bio-resources has recently been kicked off. The move marks the systematic implementation of the secondround investigation of the country＇s lacustrine resources. 相似文献
15.
Bats the only mammals known to possess the real ability to fly have fascinated zoologists for a long time with their long-distance migration. How do they find their way home from an altitude of kilometers above sea level where their stunt of ultrasonic echolocation does not work?…… 《中国科学院院刊(英文版)》2008,22(1):3-4
Bats, the only mammals known to possess the real ability to fly, have fascinated zoologists for a long time with their long-distance migration. How do they find their way home from an altitude of kilometers above sea level, where their stunt of ultrasonic echolocation does not work？ Recent discoveries supported the theory that bats might be able to use magnetic clues to figure out their own position,just like what birds do. However, the latest results from a joint study by a group of researchers from the CAS, East China Normal University and University of Auckland reveal that bats apply an interesting strategy different from the one underlying birds＇ orientation technique, though they both are believed to derive information about their position from the subtle changes in the magnetic field of the Earth. 相似文献
16.
《中国科学院院刊(英文版)》2014,(3):252-252
<正>On February 12,2014,the international academic journal Cancer Research published an article online entitled"Latency Associated Nuclear Antigen of Kaposi's Sarcoma Associated Herpesvirus Promotes Angiogenesis through Targeting Notch Signaling Effector Hey1",as a result from the research conducted by Prof.LAN Ke’s lab at the Institut Pasteur of Shanghai,Chinese Academy of Sciences. 相似文献
17.
SONG Jianlan 《中国科学院院刊(英文版)》2014,(3):217-220
<正>Scientists from CAS and the Max Planck Society(MPG)met on May 13,2014 in Beijing to celebrate their four-decade-long ST cooperation and cherished friendship,anticipating further development of the bilateral relation.This partnership formally began four decades ago with a visit paid by then MPG President,Prof.Lüst to CAS,introduced CAS President BAI in his address at the celebration:"During the visit,CAS and MPG confi rmed the basic principles of cooperation,that is equality and mutual benefi ts for both sides,and reached agreement to develop a collaborative partnership."This occurred only two years after the establishment of the diplomatic relations between Germany and China,despite the shadow of the Cold War."Building up a partnership between Germany and 相似文献
18.
TANG Kun 《中国科学院院刊(英文版)》2014,(2):161-165
<正>The scientifi c goals of the Partner Group are to utilize large scale genomic polymorphism data to make fi ne inferences about human demographic history and various forms of natural selection in the human genome;and to understand the genetic basis and evolutionary mechanisms underlying the common variations in human facial morphology,both within and between populations. 相似文献
19.
Frauke Gr?ter 《中国科学院院刊(英文版)》2014,(2):195-197
<正>The Group on Protein Mechanics and Evolution at the CAS-MPG Partner Institute for Computational Biology,Shanghai,was established in January 2007 and headed by Dr.Frauke Gr?ter.The Klaus Tschira Lab has continued the eff orts of this former Independent Junior Research Group,since Dr.Gr?ter took up a position at the Heidelberg Institute of Theoretical Studies(HITS)in Heidelberg,Germany,in 相似文献
20.
ALEXER STIRN 《中国科学院院刊(英文版)》2014,(2):150-153
A material can't get any thinner. Graphene consists of just one layer of carbon atoms but that‘s not the only reason materials scientists are interested in this material: they‘re fascinated primarily by its extraordinary properties. ZHI Linjie and his Partner Group of the Max Planck Institute for Polymer Research are using chemistry to optimize graphene for various applications. 相似文献