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    题名 作者 年代 出处 被引量
1High current density Sc_2O_3-W matrix dispenser cathode显示文摘Sc2O3-W matrix dispenser cathodes have been prepared by powder metallurgy method and tested in Pierce electron guns.The emission current density can reach 72 A/cm2 at 900C and over 100 A/cm2 can be achieved at a temperature higher than 950C.The emission improves and then keeps stable with time throughout the life testing period of 330 h at a continuous loading of 88 A/cm2pulsed current density with a pulse width of 10μs and duty cycle of 0.2%.The cathode surface is covered by a semiconductor multilayer composed of Ba,Sc and O.The emission behavior of the cathode can be explained by a semiconductor model.WANG JinShu ZHANG XiZhu LIU Wei WANG YiMan ZHOU MeiLing ZUO TieYong 2012Science China(Information Sciences)2012,55,1:7
2Safety evaluation and the static-dynamic coupling analysis of counter-arched slab in plunge pool显示文摘The stability of plunge pool slab of drainage structure is crucial to energy dissipation,but the working conditions of counter-arched slab are very complex and its stress procedure is considerably nonlinear and coupling.Therefore,a nonlinear static and dynamic coupling method to analyze the counter-arched slab configuration is put forward,which can reflect the coupling of dynamic loads,slab,anchor bars,groundwork and abutment as well as the dynamic procedure of instability.Various nonlinear factors and static-dynamic coupling are taken into consideration,and the working conditions,stress mechanism,dynamic instability procedure and influential instability factors are revealed.The proposed method thus provides a comprehensive safety evaluation method of plunge pool,which further pro-vides an important theoretical basis for engineering design of counter-arched slab in plunge pool.LIAN JiJian LIU XiZhu MA Bin 2009Science China(Technological Sciences)2009,52,5:4
3Synthesis and structure of platinum (II) complexes containing an asymmetric chelating diamine 2 - morpholino - ethylamine as the carrier显示文摘Chen Xizhu Xie Mingjin Liu Weiping 2007Inorg Chim Acta2007,360,:1
4An experimental study on closed-polyculture of penaeid shrimp with tilapia and constricted tagelus显示文摘Xiangli Tian Deshang Li Shuanglin Dong Xizhu Yan Zhenxiong Qi Guocai Liu Jing Lu 2001Aquaculture2001,,1:1
5Preparation and immunoprotective effects of a virus-like particle candidate vaccine of the dominant epidemic D3 genotype coxsackievirus A6 in China显示文摘Coxsackievirus A6 of the D3a genotype(CVA6 D3a)is a primary pathogen causingmainland of China's hand,foot,and mouth disease(HFMD).Viral‐like particle(VLP)vaccines represent a potential candidate vaccine to prevent HFMD.This study collected Anti‐CVA6 D3a VLPs serum from BALB/c female mice immunized using CVA6 D3a VLPs.The neutralizing antibody levels were compared against the representative 14‐JX2018(D3a)and N4‐YN2015(D3b)strains between the antisera of different immune pathways.The immunoprotective effect of anti‐CVA6 D3a VLPs against these strains was monitored using pathological sections and immuno-histochemical results of lung and skeletal muscle tissues in seven‐day‐old Institute of Cancer Research(ICR)mice.Immunological protection against different branches of viruses was evaluated in 7‐day‐old(serum passive immune protection)and 14‐day‐old(VLPs active immune protection)neonatal ICR mice models.Serum‐neutralizing antibody levels were positively correlated with the number of immunizations and higher against 14‐JX2018 than against N4‐YN2015.Furthermore,these levels were significantly higher with abdominal injection than intramuscular injection.The immunized serum of 7‐day‐old ICR mice inoculated three times was 100%protected against CVA6 D3a 14‐JX2018(lethal titer:106.25 TCID 50)and CVA6 D3b N4‐YN2015(lethal titer:105.25TCID 50)fatal attacks,respectively.For ICR mice that have completed two active immunizations for 14 days,both CVA6 D3a 14‐JX2015(challenge titer:108.25 TCID 50)and CVA6 D3b N4‐YN2015(challenge titer:107.25 TCID 50)were used for the challenge,and the mice were able to survive.Overall,the CVA6 D3a VLPs prepared in this study are a potential vaccine candidate for CVA6,as it has the optimal protective effect against both CVA6 D3a and D3b evolutionary branches viruses.Xiaoliang Li Xizhu Xu Jichen Li Huanhuan Lu Congcong Wang Rui Wang Jinbo Xiao Ying Liu Yang Song Jingdong Song Qiang Sun Yong Zhang 2024Biosafety and Health2024,6,1:0
6Study on Banana Cooperatives in Hainan Province显示文摘This paper gives an overview of the distribution,member scale,production and operation of banana cooperatives in Hainan Province,and points out the market risk and natural risk faced by the production of banana cooperatives in Hainan Province. In order to promote the banana cooperatives to form new agricultural management system integrating organization and intensification,this paper puts forth the production and operation recommendations,such as joint production of banana cooperatives,timely planting of banana,brand management,and improvement of production and operation technical level.Huide HUANG Wanzhen ZHANG Enping LIU Xizhu ZHANG 2013Asian Agricultural Research2013,5,7:0
7Clinical features of 162 fatal cases of COVID-19:a multi-center retrospective study显示文摘Background:The coronavirus disease 2019(COVID-19)has affected approximately 2 million individuals worldwide;however,data regarding fatal cases have been limited.Objective:To report the clinical features of 162 fatal cases of COVID-19 from 5 hospitals in Wuhan between December 30,2019 and March 12,2020.Methods:The demographic data,signs and symptoms,clinical course,comorbidities,laboratory findings,computed tomographic(CT)scans,treatments,and complications of the patients with fatal cases were retrieved from electronic medical records.Results:The median patient age was 69.5(interquartile range:63.0–77.25)years,and 80%of the patients were over 61 years.A total of 112(69.1%)patients were men.Hypertension(45.1%)was the most common comorbidity,while 59(36.4%)patients had no comorbidity.At admission,131(81.9%)patients had severe or critical COVID-19,whereas 39(18.1%)patients with hypertension or chronic lung disease had moderate COVID-19.In total,126(77.8%)patients received antiviral treatment,while 132(81.5%)patients received glucocorticoid treatment.A total of 116(71.6%)patients were admitted to the intensive care unit(ICU),and 137(85.1%)patients received mechanical ventilation.Most patients received mechanical ventilation before ICU admission.Approximately 93.2%of the patients developed respiratory failure or acute respiratory distress syndrome.There were no significant differences in the inhospital survival time among the hospitals(P=0.14).Conclusion:Young patients with moderate COVID-19 without comorbidity at admission could also develop fatal outcomes.The in-hospital survival time of the fatal cases was similar among the hospitals of different levels in Wuhan.Xianlong Zhou Guoyong Ding Qing Fang Jun Guo Luyu Yang Ping Wang Shou-Zhi Fu Ang Li Jian Xia Jiangtao Yu Jianyou Xia Min Ma Zhuanzhuan Hu Lei Huang Ruining Liu Cheng Jiang Shaoping Li Mingxia Yu Xizhu Xu Yan Zhao Quan Hu Weijia Xing Zhigang Zhao 2022Emergency and Critical Care Medicine2022,2,3:0
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