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| 1 | Motion simulation and test on threshed grains in tapered threshing and transmission device for plot wheat breeding based on CFD-DEM显示文摘Mechanization of field experiments is the only way to improve crop breeding and seed propagation effects.In order to further clarify and improve the working performance of tapered threshing device for plot breeding,and reduce the remaining seeds in the device,the numerical simulation was carried out on the motion process of materials in the longitudinal-axial tapered cylinder threshing and transmission device of the plot wheat breeding combine harvester based on CFD-DEM method.Simulation results showed that,threshing and transmission of particles and short stalks at axial direction could be realized under the influence of air flow.Meanwhile,the material transference and distribution rule and stream field distribution rule of air flow in the threshing and transmission device were obtained,the variations of velocity and displacement of particles and short stalks with time were obtained;the motion trajectories and forms of particles in different types of retention were also studied.At rotating speed of 1300-1600 r/min for the tapered threshing cylinder in the verification test,the particle retention rate in the enclosure was 0-0.13%,while in the simulation the particle retention rate in the enclosure was 0-0.11%,only a 0.02%difference between them.The results proved a favorable feasibility to simulate the working performance of the tapered threshing and transmission device for plot breeding through gas-solid coupling method. | Fei Dai Xuefeng Song Wuyun Zhao Zhengsheng Han Fengwei Zhang Shilin Zhang | 2019 | International Journal of Agricultural and Biological Engineering2019，12，1： | 16 |
| 2 | Histological and cytological investigations of the infection and colonization of apple bark by Valsa mali var. mali显示文摘 | Xiwang Ke Lili Huang Qingmei Han Xiaoning Gao Zhengsheng Kang | 2013 | Australasian Plant Pathology2013，，1： | 3 |
| 3 | Quantitation of HBV covalently closed circular DNA in micro formalin fixed paraffin-embedded liver tissue using rolling circle amplification in combination with real-time PCR显示文摘 | Yanwei Zhong Jiaqi Han Zhengsheng Zou Shuhong Liu Bo Tang Xiaoqiang Ren Xiaodong Li Yulai Zhao Yan Liu Dongqing Zhou Weijie Li Jingmin Zhao Dongping Xu | 2011 | Clinica Chimica Acta2011，，21： | 2 |
| 4 | Single-event burnout hardening of planar power MOSFET with partially widened trench source显示文摘We present a single-event burnout(SEB) hardened planar power MOSFET with partially widened trench sources by three-dimensional(3 D) numerical simulation. The advantage of the proposed structure is that the work of the parasitic bipolar transistor inherited in the power MOSFET is suppressed effectively due to the elimination of the most sensitive region(P-well region below the N+ source). The simulation result shows that the proposed structure can enhance the SEB survivability significantly. The critical value of linear energy transfer(LET),which indicates the maximum deposited energy on the device without SEB behavior, increases from 0.06 to0.7 p C/μm. The SEB threshold voltage increases to 120 V, which is 80% of the rated breakdown voltage. Meanwhile, the main parameter characteristics of the proposed structure remain similar with those of the conventional planar structure. Therefore, this structure offers a potential optimization path to planar power MOSFET with high SEB survivability for space and atmospheric applications. | Jiang Lu Hainan Liu Xiaowu Cai Jiajun Luo Bo Li Binhong Li Lixin Wang Zhengsheng Han | 2018 | Journal of Semiconductors2018，39，3： | 1 |
| 5 | A total dose radiation hardened PDSOI CMOS 3-line to 8-line decoder显示文摘 | Liu Mengxin Han Zhengsheng Li Duoli | | 0，，06： | 1 |
| 6 | 3 - 26 Threshold Ion Range for Accurate Single Event Upset Measurementin SO1 SRAM Devices显示文摘 | Zhang Zhangang Liu Jie Hou Mingdong Sun Youmei Zhao Fazhan Liu Gang Han Zhengsheng Gu Song Liu Tianqi Geng Chao Xi Kai Yao Huijun Luo Jie Duan Jinglai Mo Dan | 2012 | IMP & HIRFL Annual Report2012，，1： | 0 |
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