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Chinese agricultural technology transfer to African typical dry areas: practice and experience
Qiuxia MENG, Jianjie ZHANG, Wenyan XIE, Huaiping ZHOU, Qiang ZHANG
《农业科学与工程前沿(英文)》 2020年 第7卷 第4期 页码 440-454 doi: 10.15302/J-FASE-2020353
Africa has experienced increasing aridity and higher frequency of droughts due to climate change during the half past century with possible adverse effects on agricultural production, especially in dry areas with low rainfall. Under the auspices of the Africa Water Action Program between the Chinese Ministry of Science and Technology (MOST) and the United Nations Environment Program (UNEP), the Institute of Agricultural Environment and Resources, Shanxi Academy of Agricultural Sciences (SAAS-IAER) has worked closely with domestic and overseas partners on technology transfer in Morocco, Zambia, Egypt, Niger and Ethiopia from 2008 to 2013. A drought early warning system has been established and validated, and drought adaptation technologies have been trialed, modified, demonstrated and extended in African countries, and this shows great potential to increase crop production, water and fertilizer use efficiency and desert control in rainfed areas of Africa. The project has continued for six years and is a successful case of technology transfer and capacity building in Africa. The knowledge and experience gained will be useful to researchers, technicians, aid agencies and policy makers who work on agricultural technology transfer for in dry areas of Africa.
关键词: drought early warning adaptation technology China United Nations Environment Program Africa
郭志勤
《中国工程科学》 2000年 第2卷 第3期 页码 12-17
从我国养牛业的现状和存在的主要问题,指出养牛业需要大力发展,当前必须大量引种和繁殖种牛。 而胚胎移植是引种的一种最好手段,具有方法简便、成本低、缩短改良时间、减少疾病传播等优点。同时,进 一步分析了我国胚胎移植技术的研究概况,阐明了胚胎移植的主要技术关键及产业化的必要性和可能性。并根 据我国养牛业的现状,提出奶牛、肉牛业应用胚胎移植技术的措施与办法。
Augmentation of natural convective heat transfer by acoustic cavitation
Jun CAI, Xiulan HUAI, Shiqiang LIANG, Xunfeng LI,
《能源前沿(英文)》 2010年 第4卷 第3期 页码 313-318 doi: 10.1007/s11708-009-0064-3
关键词: heat transfer enhancement augmentation acoustic cavitation acoustic streaming convective heat transfer
Experimental study of heat transfer coefficient with rectangular baffle fin of solar air heater
Foued CHABANE,Nesrine HATRAF,Noureddine MOUMMI
《能源前沿(英文)》 2014年 第8卷 第2期 页码 160-172 doi: 10.1007/s11708-014-0321-y
关键词: Nusselt number flow rate heat transfer heat transfer coefficient thermal efficiency forced convection
Jizu LV, Minli BAI, Long ZHOU, Jian ZHOU,
《能源前沿(英文)》 2010年 第4卷 第3期 页码 392-401 doi: 10.1007/s11708-009-0066-1
关键词: heat transfer space non-uniformity soot emission in-cylinder diesel
Heat transfer coefficient of wheel rim of large capacity steam turbines
SHI Jinyuan, DENG Zhicheng, YANG Yu, JUN Ganwen
《能源前沿(英文)》 2008年 第2卷 第1期 页码 20-24 doi: 10.1007/s11708-008-0015-4
关键词: convection heat-transfer capacity heat-transfer coefficient bottom transmission
Review of the LNG intermediate fluid vaporizer and its heat transfer characteristics
《能源前沿(英文)》 2022年 第16卷 第3期 页码 429-444 doi: 10.1007/s11708-021-0747-y
关键词: intermediate fluid vaporizer design of structure and intermediate fluid condensation heat transfer
Improving hole transfer of boron nitride quantum dots modified PDI for efficient photodegradation
《化学科学与工程前沿(英文)》 2023年 第17卷 第11期 页码 1718-1727 doi: 10.1007/s11705-023-2319-7
关键词: PDI boron nitride quantum dots photocatalysis hole transfer
Rolling-element bearings in China: From ancient times to the 20th century
Lie SUN,Ang LI
《机械工程前沿(英文)》 2016年 第11卷 第1期 页码 33-43 doi: 10.1007/s11465-016-0373-2
The development of rolling-element bearings in China has spanned a long period. Based on several typical and important cases, the present article reconstructs the history of rolling-element bearings in China by dividing it into four stages according to the various characteristics of the bearings. The first stage represents the origin of rolling bearings in China, which remains controversial because of several suspected races and cages that were likely the components of bearings more than a millennium ago. At the second stage, a type of simple roller bearing was used for astronomical instruments not later than the 13th century based on clear philological and physical evidence. A similar bearing was also applied to an abridged armillary in the 17th century. Another type of spherical thrust bearings with rolling elements, which is a key component of a traditional Chinese windmill, could support a rotating shaft that moves rotationally and at an angle. At the third stage, the Chinese began studying and using the so-called European-style bearing since the 17th century. Moreover, over the last 100 years, the modern rolling bearing industry was gradually established in China, particularly because of the technology transfer from the Soviet Union in the 1950s. At the fourth stage, the Chinese government initiated the relatively rapid development of bearing technology. The government launched the “bearing movement” from the 1950s to the 1960s to establish the modern bearing industry and to promote rolling bearings as replacement for traditional sliding bearings. Furthermore, a number of large professional factories and institutions in China have continually introduced advanced technology and equipment. At present, these companies and institutions play a significant role in the international bearing industry.
关键词: bearing movement rolling-element bearing China early rolling bearings technology transfer
A new heat transfer correlation for supercritical fluids
Yanhua YANG, Xu CHENG, Shanfang HUANG
《能源前沿(英文)》 2009年 第3卷 第2期 页码 226-232 doi: 10.1007/s11708-009-0022-0
关键词: super critical fluids heat transfer circular tubes prediction method
《环境科学与工程前沿(英文)》 2023年 第17卷 第9期 doi: 10.1007/s11783-023-1706-0
● A CNT filter enabled effective KMnO4 activation via facilitated electron transfer.
关键词: KMnO4 Carbon nanotubes Non-radical pathway Electron transfer Water treatment
Chemically reactive solute transfer in a boundary layer slip flow along a stretching cylinder
Swati Mukhopadhyay
《化学科学与工程前沿(英文)》 2011年 第5卷 第3期 页码 385-391 doi: 10.1007/s11705-011-1101-4
关键词: boundary layer stretching cylinder partial slip mass transfer similarity solution
《医学前沿(英文)》 2021年 第15卷 第5期 页码 679-692 doi: 10.1007/s11684-021-0866-1
关键词: metabolic reprogramming potential of electron transfer cell proliferation aerobic glycolysis cancer metabolism
Studies on the liquid-liquid interfacial mass transfer process using holographic interferometry
ZHAO Chaofan, ZHU Chunying, MA Youguang
《化学科学与工程前沿(英文)》 2008年 第2卷 第1期 页码 1-4 doi: 10.1007/s11705-008-0006-3
关键词: liquid-liquid different real-time holographic addition transfer
标题 作者 时间 类型 操作
Chinese agricultural technology transfer to African typical dry areas: practice and experience
Qiuxia MENG, Jianjie ZHANG, Wenyan XIE, Huaiping ZHOU, Qiang ZHANG
期刊论文
Augmentation of natural convective heat transfer by acoustic cavitation
Jun CAI, Xiulan HUAI, Shiqiang LIANG, Xunfeng LI,
期刊论文
Experimental study of heat transfer coefficient with rectangular baffle fin of solar air heater
Foued CHABANE,Nesrine HATRAF,Noureddine MOUMMI
期刊论文
Effect of heat transfer space non-uniformity of combustion chamber components on in-cylinder heat transfer
Jizu LV, Minli BAI, Long ZHOU, Jian ZHOU,
期刊论文
Heat transfer coefficient of wheel rim of large capacity steam turbines
SHI Jinyuan, DENG Zhicheng, YANG Yu, JUN Ganwen
期刊论文
Improving hole transfer of boron nitride quantum dots modified PDI for efficient photodegradation
期刊论文
Insights into the electron transfer mechanisms of permanganate activation by carbon nanotube membrane
期刊论文
Chemically reactive solute transfer in a boundary layer slip flow along a stretching cylinder
Swati Mukhopadhyay
期刊论文
Potential of electron transfer and its application in dictating routes of biochemical processes associated
期刊论文