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1.
从数量上来看,我国已成为世界科技期刊出版第二大国,但并不是科技期刊出版强国。与世界高水平的科技期刊相比,我国的科技期刊无论在学术水平、经营模式,还是在运作机制上都存在较大的差距,并未充分反映我国科学技术的研究水平,无法满足科研人员和市场的需求。针对我国科技期刊发展中存在的主要问题,提出应从三个方面入手,即由维持到盈利、由分散到集中、由传统到开放,全面提升我国科技期刊的整体水平。  相似文献   

2.
我国钼工业现状及发展对策浅议   总被引:2,自引:1,他引:1  
论述了我国钼的资源、应用及钼制品生产的工艺技术和装备要求,分析了我国钼工业的现状及与国外同行业存在的差距,对发展我国钼工业提出了一些粗浅的建议。  相似文献   

3.
在过去20年中,中国钢铁工业已经取得了重大进步,自1996年以来中国成为世界上最大的钢铁生产国,但是中国钢铁生产仍不能完全满足国内市场对钢铁产品的需求,与发达国家的钢铁工业相比,中国钢铁工业的竞争力并不太强,必须进行调整。论述了21世纪中国的钢铁工业的结构调整的方针。  相似文献   

4.
介绍了中国钢铁工业现状,对中国钢材市场进行了分析与预测,指出中国钢铁工业发展动向,展望了2005年中国钢铁工业的未来。  相似文献   

5.
入世后中国钼工业的机遇、挑战与对策   总被引:3,自引:3,他引:0  
本文阐述了中国钼工业现状,中国钼工业在世界同行业中的地位、中国钼业入世承诺、中国加入WTO后钼行业面临的机遇与挑战、中国钼行业拟采取的原则性应对措施以及中国钼工业的发展前景。  相似文献   

6.
龙涛 《黄金》2013,(1):38-40
中国黄金工业发展迅速,世人瞩目。中国黄金资源分布较广、种类较多。介绍了中国岩金矿山开采的总体情况,分析了中国岩金地下开采采矿工艺的发展现状及存在的主要问题,讨论了中国岩金地下开采采矿工艺未来的发展方向,为中国黄金矿业可持续发展提供借鉴。  相似文献   

7.
准确衡量南北稀土产业竞争力水平及差异是实现我国稀土产业科学发展的前提条件.文中基于修正的“钻石模型”对南北稀土产业竞争力进行了对比分析.研究发现,北方稀土产业在资源储量、企业战略和同业竞争、产业配合和产业集群、知识吸收和创新能力等方面具有优势,稀土产业竞争力强于南方稀土产业.研究结果表明:我国稀土产业发展应在“控量提质”上下功夫,以分类管理、政策引导实现产业结构向纵深发展;强调南北稀土产业差异,南方重在资源整合和人才培养,北方重在产业集群内涵建设和科技成果转化,做到有所侧重.   相似文献   

8.
Projections of future precipitation change over China are studied based on the output of a global AGCM, ECHAM5, with a high resolution of T319 (equivalent to 40 km). Evaluation of the model's performance in simulating present-day precipitation shows encouraging results. The spatial distributions of both mean and extreme precipitation, especially the locations of main precipitation centers, are reproduced reasonably. The simulated annual cycle of precipitation is close to the observed. The performance of the model over eastern China is generally better than that over western China. A weakness of the model is the overestimation of precipitation over northern and western China. Analyses on the potential change in precipitation projected under the A1B scenario show that both annual mean precipitation intensity and extreme precipitation would increase significantly over southeastern China. The percentage increase in extreme precipitation is larger than that of mean precipitation. Meanwhile, decreases in mean and extreme precipitation are evident over the southern Tibetan Plateau. For precipitation days, extreme precipitation days are projected to increase over all of China. Both consecutive dry days over northern China and consecutive wet days over southern China would decrease.  相似文献   

9.
The production and development of the ironmaking process in China are crucial for energy saving, emission reduction and transformation and promotion processes of iron and steel industry. In order to fully understand the production and techniques of ironmaking blast furnace in China, the production and operation indexes of large blast furnaces were analysed in this paper. Then challenges of the ironmaking in China were discussed. On this basis, the future development of ironmaking in China was further analysed. The study will contribute to understanding the state of ironmaking process of China.  相似文献   

10.
2010年的中国钛工业   总被引:2,自引:0,他引:2  
根据中国有色金属工业协会钛锆铪分会的统计数据,分析了2010年中国钛工业的产能、产量、需求等情况,特别讨论了2010年中国钛工业所面临的大形势,以及中国钛工业在"十二五"期间的主要任务。  相似文献   

11.
WTO与ISO     
任宝江 《中国钼业》2003,27(2):18-19
通过对中国加入WTO后中国钼业所面临的机遇和挑战的分析 ,阐述了ISO对中国钼业应对各种挑战的重要作用 ,并提出了中国钼业应对挑战应该实施的对策  相似文献   

12.
吴觉先  郭志奇 《中国钨业》2001,16(2):6-9,13
通过对我国硬质合金工业现状的分析 ,论述了加入WTO后对我国硬质合金工业的巨大影响 ,提出如何抓住加入WTO带来的发展机遇 ,迎接新的挑战 ,有效化解风险 ,并进一步阐述了具体的应对措施。  相似文献   

13.
中巴经济走廊贯通巴基斯坦全境,为我国与巴基斯坦进行有色金属产业合作提供了良好的机遇。基于我国有色金属资源匮乏且国内技术设施趋于饱和,而巴基斯坦有色金属资源丰富但技术设施落后的现状,从两国政治、有色金属与人力资源、投资环境与区位交通出发,开展了中巴有色金属产业合作必要性和可行性研究,认为中巴有色金属产业具有较大合作空间。从宏观角度提出了中巴有色金属产业合作国际产能转移模式,从微观角度提出了产量分成合作、联合经营合作和技术服务合作3种经营模式,以及新理念合作机制、生态环境保护措施和防控化解风险等3个方面的中巴有色金属产业合作保障建议。  相似文献   

14.
Development of non‐coke ironmaking process in China is presented. It is concluded that coal‐based rotary kiln is still the main process for direct reduced iron (DRI) production in the near future in China. The most important problems of DRI production in China are small production scale and heavy environment pollution. Now the gas‐based shaft furnace process has become one of the significant processes of DRI production in China. The market demand for DRI production in China is continuously increasing. Due to the tense supply of coking coal and its heavy environmental load, more steel plants in China will use smelting reduction (SR) technology.  相似文献   

15.
The spatiotemporal variations of the site and regional droughts in China during 1960-2009 were analyzed by applying a daily composite-drought index (CDI) to 722 stations in mainland China. Droughts frequently happened in a zone extended from Southwest China to the Yellow River, North China, and the southwestern part of Northeast China, with two centers of high frequency in North China and Southwest China. In Southwest and South China, droughts tend to happen during the winter. In North China and along the Yellow River, droughts mainly occur during the winter and during May-June. During the past 50 years, the geographical distribution of site drought events showed high frequencies (0.9-1.3 times per year) in the upper Yellow River basin and North China, comparing with moderate frequencies (0.6-0.9 times per year) in Southwest China and the southwestern part of Northeast China and with lower frequencies over the middle and lower Yangtze River basin. And the frequencies increased over mainland China except for the upper reaches of the Yangtze River. A regional drought (RD) event is a widespread and persistent event that covers at least five adjacent sites and lasts for at least 10 days. There were 252 RD events in the past 50 years-five times per year. Most RD events lasted for <100 days and covered <100 stations, but the longest and largest RD event lasted for 307 days from 6 September 1998 to 9 July 1999 and covered 327 stations from North to Southwest China.  相似文献   

16.
Using NCEP/NCAR reanalysis data, the China rainfall and surface temperature data of the China Meteorological Administration, and the Arctic Oscillation (AO) indices of NOAA, the author investigates relationships between the AO and the precipitation and temperature over China. There exists a good relationship between the AO index in December and the succeeding January precipitation over South China, indicating that when the December AO index is positive (negative), the January precipitation over South China increases (decreases). A remarkable negative correlation between the December AO index and the January surface temperature also exists over South China, indicating that when the December AO index is positive (negative), the January temperature over South China drops (rises). The occurrence of this anomalous climate is related to the anomalies of the atmospheric circulation systems. The December AO greatly influences circulation anomalies in January. A positive phase of the AO is found to lead to a stronger subtropical jet over the south side from the Iran Plateau to the Tibetan Plateau. Consequently, it results in a deepening pressure trough around the Bay of Bengal, which transports the warm and wet air to South China continuously. The Siberian High in January is stronger and extends farther southeastward. It results in continual cold air at 1000 hPa pouring into South China, inducing low temperature. Cooperating with the trough of the Bay of Bengal, anomalous precipitation occurs over South China. For the negative phase of the December AO, the opposite situation is observed.  相似文献   

17.
中国不锈钢的生产现状和发展   总被引:1,自引:0,他引:1  
李成 《特殊钢》1994,15(4):1-5
中国近10年内随着国民经济的增长,不锈钢产量增长达412%。作者分析了中国不锈钢生产现状与先进国家相比的差距,并根据中国市场需求,借鉴世界的成功经验,提出出今后中国不锈钢发展的产量与品种预测,合理的经济规模以及生产工艺与装置的选择。  相似文献   

18.
中国(大陆)粉末冶金零件行业2004年进展   总被引:1,自引:0,他引:1  
本文介绍了中国(大陆)粉末冶金零件行业2004年的生产概况与市场动向。阐述了粉末冶金汽车零件的市场动态。分析了中国(大陆)粉末冶金零件行业面临的挑战。介绍了美国APMI International的PMT认证。  相似文献   

19.
ABSTRACT

The development of China’s steel industry has been phenomenal, and in 2018, China’s crude steel production reached 928.3 million tonnes and accounted for 51.3% share of global crude steel production. In the past 70 years, along with the country's growth and development, China steel industry has experienced a period of unstable development, rapid growth, reduction and optimization. The purposes of this article are to provide some historical background of the steel industry development in China. In this article, we will summarize the unstable development of China’s steel industry from 1949 to 1978. We will, then, describe stable development over the reform and opening-up period from 1978 to 1999 and rapid development in the boom period from 2000 to 2014. Finally, we will discuss how the steel industry copes with the new challenges in China’s move towards supply-side reform since 2015 and the future directions of the development of China’s steel industry.  相似文献   

20.
中国钼工业发展报告   总被引:2,自引:3,他引:2  
从中国钼工业经济运行情况、产业结构、市场及对外贸易情况等几个方面,阐述了中国钼工业发展现状,并对中国钼工业经济运行状况进行了分析,指出了中国钼工业发展中的突出问题,并针对中国钼工业现状,提出了几点建设性建议。  相似文献   

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