4篇
您的检索式：作者名="Yinguo DONG"
|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Playing Catch-up China’s Agricultural Produce Exports Struggle under the WTO’s SPS Agreement显示文摘China’s agricultural produce exports struggle under the WTO’s SPS Agreement. | DONG YINGUO | 2013 | China Today2013，62，5： | 1 |
| 2 | Clarification of underneath capacity loss for O3-type Ni, co free layered cathodes at high voltage for sodium ion batteries显示文摘Earth abundant O3-type NaFe_(0.5)Mn_(0.5)O_(2)layered oxide is regarded as one of the most promising cathodes for sodium ion batteries due to its low cost and high energy density.However,its poor structural stability and cycle life strongly impede the practical application.Herein,the dynamic phase evolution as well as charge compensation mechanism of O3-type NaFe_(0.5)Mn_(0.5)O_(2)cathode during sodiation/desodiation are revealed by a systemic study with operando X-ray diffraction and X-ray absorption spectroscopy,high resolution neutron powder diffraction and neutron pair distribution functions.The layered structure experiences a phase transition of O3→P3→OP2→ramsdellite during the desodiation,and a new O3’phase is observed at the end of the discharge state(1.5 V).The density functional theory(DFT)calculations and nPDF results suggest that depletion of Na^(+)ions induces the movement of Fe into Na layer resulting the formation of an inert ramsdellite phase thus causing the loss of capacity and structural integrity.Meanwhile,the operando XAS clarified the voltage regions for active Mn^(3+)/Mn^(4+)and Fe^(3+)/Fe^(4+)redox couples.This work points out the universal underneath problem for Fe-based layered oxide cathodes when cycled at high voltage and highlights the importance to suppress Fe migration regarding the design of high energy O3-type cathodes for sodium ion batteries. | Dong Zhou De Ning Jun Wang Jiahua Liu Gaoyuan Zhang Yinguo Xiao Jiaxin Zheng Yongli Li Jie Li Xinzhi Liu | 2023 | Journal of Energy Chemistry2023，，2： | 0 |
| 3 | Sanitary and Phytosanitary Measures in China:Efficiency and Challenge:A Case Study of Swine Industry显示文摘The Sanitary and Phytosanitary( SPS) measures are technical regulations,standards,and requirements closely related to food safety,plant and animal health,and environmental safety,aiming to prevent disease,pests,pathogens and other alien risk from entering China.Pork is favorite meat for Chinese consumers; its safety directly concerns the safety of whole food supply chain with rapid increasing of pork import. This paper analyzed SPS management system of swine and pork import,and evaluated SPS efficiency of swine industry in China from SPS notification number,swine health situation,and pork import standard. The study found that as for SPS notification number and chemical residue control standard,China's SPS protection level is relatively high,while the control level of swine diseases is still low. In China,SPS management system has the problem of involving multiple authorities and poor coordination among them,leading to some standards lacking scientific basis and low enforcement. | Yinguo DONG Yehong LU | 2015 | Asian Agricultural Research2015，7，11： | 0 |
| 4 | Driving Force of China's Agricultural Exports to Japan显示文摘Japan is the largest export destination for Chinese agricultural products. The export status to Japan is directly related to the overall trend of China's agricultural exports. Based on the HS9-coded agricultural product trade data of the Japanese Ministry of Finance in 2001-2017,using the ternary marginal analysis method,the driving force of China's agricultural exports to Japan was analyzed in this paper from a static and dynamic perspective. The results showed that 98. 89% of the driving force of China's agricultural exports to Japan was from the contribution of quantity margin. The contribution of the extensive margin had been decreasing year by year after 2006,and it has been negative for many years. The reason was that technical barriers such as the Positive List System lead to less export of agricultural product in varieties and types. The average marginal contribution rate of price was 8. 26%. The average price of exported agricultural products has been basically higher than the world average level since 2013,suggesting that the quality of exported agricultural products has been improved. While maintaining the quantity of agricultural exports,improving the quality of agricultural products,expanding export varieties and increasing export value added are the sources of sustainable growth of China's agricultural exports in the future. | Yinguo DONG Lijuan PU | 2019 | Asian Agricultural Research2019，11，2： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员