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36篇 您的检索式:作者名="ZHENG Zhenfeng"
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1The seasonal variations in the significant wave height and sea surface wind speed of the China's seas显示文摘Long-term variations in a sea surface wind speed(WS) and a significant wave height(SWH) are associated with the global climate change, the prevention and mitigation of natural disasters, and an ocean resource exploitation,and other activities. The seasonal characteristics of the long-term trends in China's seas WS and SWH are determined based on 24 a(1988–2011) cross-calibrated, multi-platform(CCMP) wind data and 24 a hindcast wave data obtained with the WAVEWATCH-III(WW3) wave model forced by CCMP wind data. The results show the following.(1) For the past 24 a, the China's WS and SWH exhibit a significant increasing trend as a whole, of3.38 cm/(s·a) in the WS, 1.3 cm/a in the SWH.(2) As a whole, the increasing trend of the China's seas WS and SWH is strongest in March-April-May(MAM) and December-January-February(DJF), followed by June-July-August(JJA), and smallest in September-October-November(SON).(3) The areal extent of significant increases in the WS was largest in MAM, while the area decreased in JJA and DJF; the smallest area was apparent in SON. In contrast to the WS, almost all of China's seas exhibited a significant increase in SWH in MAM and DJF; the range was slightly smaller in JJA and SON. The WS and SWH in the Bohai Sea, the Yellow Sea, East China Sea, the Tsushima Strait, the Taiwan Strait, the northern South China Sea, the Beibu Gulf, and the Gulf of Thailand exhibited a significant increase in all seasons.(4) The variations in China's seas SWH and WS depended on the season. The areas with a strong increase usually appeared in DJF.ZHENG Chongwei PAN Jing TAN Yanke GAO Zhansheng RUI Zhenfeng CHEN Chaohui 2015Acta Oceanologica Sinica2015,34,9:5
2Effect of methyl jasmonate on the inhibition of Colletotrichum acutatum infection in loquat fruit and the possible mechanisms显示文摘Shifeng Cao Yonghua Zheng Zhenfeng Yang Shuangshuang Tang Peng Jin Kaituo Wang Xiaomei Wang 2008Postharvest Biology and Technology2008,,2:3
3The development of real time data driving multi-axis linkage and synergic movement control system of 3D variable cross-section roll forming machine显示文摘The three dimensional variable cross-section roll forming is a kind of new metal forming technology which combines large forming force,multi-axis linkage movement and space synergic movement,and the sequential synergic movement of the ganged roller group is used to complete the metal sheet forming according to the shape of the complicated and variable forming part data.The control system should meet the demands of quick response to the test requirements of the product part.A new kind of real time data driving multi-axis linkage and synergic movement control strategy of 3D roll forming is put forward in the paper.In the new control strategy,the forming data are automatically generated according to the shape of the parts,and the multi-axis linkage movement together with cooperative motion among the six stands of the 3D roll forming machine is driven by the real-time information,and the control nodes are also driven by the forming data.The new control strategy is applied to a 48axis 3D roll forming machine developed by our research center,and the control servo period is less than 10ms.A forming experiment of variable cross section part is carried out,and the forming precision is better than±0.5mm by the control strategy.The result of the experiment proves that the control strategy has significant potentiality for the development of 3D roll forming production line with large scale,multi-axis ganged and synergic movement.管延智 Li Qiang Wang Haibo Yang Zhenfeng Zheng Yuting 2013High Technology Letters2013,19,3:2
4Livistona chinensis seed suppresses hepatocellular carcinoma growththrough promotion of mitochondrial-dependent apoptosis显示文摘Wei Lin Jinyan Zhao Zhiyun Cao Qunchuan Zhuang Liangpu Zheng Qiaoyan Cai Daxin Chen Lili Wang Zhenfeng Hong Jun Peng 2013Oncology Reports2013,,5:1
5Synthesis of nitrogen-containing chiral calix[4]arene crown and semi-crown显示文摘Zheng YanSong Zhang Chun Tian ZhenFeng 0,,04:1
6Effect of methyl jasmonate on the inhibition of Colletotrichum acutatum infection in loquat fruit and the possible mechanisms显示文摘CAO Shifeng ZHENG ~onghua YANG Zhenfeng 2008Postharvest Biology and Technology2008,49,2:1
7Effect of high oxygen atmosphere storage on quality,antioxidant enzymes,and DPPH-radical scavenging activity of Chinese bayberry fruit显示文摘YANG Zhenfeng ZHENG Yonghua CAO Shifeng 0,,01:1
8Effects of storage temperature on textural properties of Chinese bayberry fruit显示文摘Zhenfeng Yang Yonghua Zheng Shifeng Cao 2007Journal of Texture Studies2007,38,:1
9Effect of methyl jasmonate on the inhibition of Colletotrichum acutatum infection in loquat fruit and the possible mechanisms显示文摘Shifeng Cao Yonghua Zheng Zhenfeng Yang Shuangshuang Tang Peng Jin Kaituo Wang Xiaomei Wang 2008Postharvest Biology and Technology2008,,2:1
10Changes of immunocytic phenotypes and functions from human colorectal adenomatous stage to cancerous stage: Update显示文摘Yanhong Shi Zhenfeng Li Wei Zheng Xia Liu Chenyi Sun Jann-Birger Laugsand Zhanju Liu Guanglin Cui 2015Immunobiology2015,,10:1
11Effect of 1-methylcyclopene on senescence and quality maintenance of green bell pepper fruit during storage at 20<ce:hsp sp='0.25'/>°C显示文摘Shifeng Cao Zhenfeng Yang Yonghua Zheng 2012Postharvest Biology and Technology2012,,:1
12Effects ofstorage temperature on the textural properties of Chinese bayberry fruit 显示文摘YANG Zhenfeng ZHENG Yonghua CAO Shifeng 2007Journal of Texture Studies2007,38,1:1
13Self-doped n-type small molecular electron transport materials for high-performance organic solar cells显示文摘Two naphthalene diimide(NDI) and perylene diimide(PDI) based n-type water/alcohol soluble small molecules(NFN and PFP)are designed and utilized as electron transport layers(ETLs) for organic solar cells(OSCs). NFN and PFP are synthesized by using Sonogashira coupling from alkynyl modified fluorene with mono-bromo substituted NDI and PDI. Density functional theory study results of NFN and PFP show that they possess excellent planarity due to the employment of triple bonds as connection units.Moreover, it was shown by electron paramagnetic resonance study that both NFN and PFP possess obvious self-doping behaviors,which may effectively enhance their charge transporting capability as ETLs in OSCs. Power conversion efficiencies of 8.59% and9.80% can be achieved for OSCs with NFN and PFP as ETLs, respectively. The higher power conversion efficiency(PCE) of PFP based photovoltaic device is originated from the stronger doping property and higher mobility of PFP.jinju liu nannan zheng zhicheng hu zhenfeng wang xiye yang fei huang yong cao 2017Science China Chemistry2017,60,8:1
14Ef- fect of methyl jasmonate on the inhibition of Col- letotrichum acutatum infection in loquat fruit and the possible mechanisms显示文摘Cao Shifeng Zheng Yonghua Yang Zhenfeng 2008Postharvest Biology and Tech- nology2008,49,2:1
15The effects of the combination of Pichia membranefaciens and BTH on controlling of blue mould decay caused by Penicillium expansum in peach fruit显示文摘Shifeng Cao Zhenfeng Yang Zhichao Hu Yonghua Zheng 2010Food Chemistry2010,,3:1
16Effect of high oxygen atmospheres on fruit decay and quality in Chinese bayberries, strawberries and blueberries显示文摘Zheng Yonghua Yang Zhenfeng Chen Xuehong 2008Food Control2008,19,5:1
17Effect of high oxygen atmospheres on fruit decay and quality in Chinese bayberries, strawberries arid blueberdes显示文摘ZHENG Yonghua YANG Zhenfeng CHEN Xuehong 2008Food Cotrol2008,19,5:1
18High-fluxceramic membranes with a nanomesh of metal oxide nanofibers显示文摘KE Xuebin ZHENG Zhenfeng LIU Hongwei 2008J Plays Chem B2008,112,16:1
19Effect of 1-methylcyclopene on senescence and quality maintenance of green bell pepper fruit during storage at 20 C 显示文摘CAO Shifeng YANG Zhenfeng ZHENG Yonghua 2012Postharvest Biology and Technology2012,70,:1
20Effect of high oxygen atmospheres on fruit decay and quality in Chinese bayberries, strawberries and blueberries显示文摘ZHENG Yonghua YANG Zhenfeng CHEN Xuehong 2008Food Control2008,19,5:1
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