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| 1 | Experimentai Research on Saturated-Gain for Soft X-Ray Laser from Neon-Like Germanium Plasma显示文摘AmpliHcation of spontaneous emissions at 19.6,23.2 and 23.6 nm have been observed by a “ultiple-Target Series Coupling”design in Ge plasma,.The combined length for four targets is up to 56mm.The gain length product(GL)of small signal is up to 18 for both lines at 23.2 and 23.6 nmt and the effective GL is 16.4 and 15.7 for these two lines respectively.This two lines are obviously tending to saturation.The divergence of x-ray laser beam is about 4 mrad. | WANG Shiji GU Yuan ZHOU GuanUn NI Yuanlong YU Songyu FU Sizu MAO Chusheng TAO Zucong CHEN Wannian LIN Zunqi FAN Dianyuan ZHANG Guoping SHENG Jiatian YANG Minglun ZHANG Tanxin SHAO Yunfeng PENG Huimin HE Xiantu YU Min | 1991 | Chinese Physics Letters1991，8，12： | 3 |
| 2 | Longitudinal virological changes and underlying pathogenesis in hospitalized COVID-19 patients in Guangzhou,China显示文摘Prolonged viral RNA shedding and recurrence of severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)in coronavirus disease 2019(COVID-19)patients have been reported.However,the clinical outcome and pathogenesis remain unclear.In this study,we recruited 43 laboratory-confirmed COVID-19 patients.We found that prolonged viral RNA shedding or recurrence mainly occurred in severe/critical patients(P<0.05).The average viral shedding time in severe/critical patients was more than 50 days,and up to 100 days in some patients,after symptom onset.However,chest computed tomography gradually improved and complete absorption occurred when SARS-CoV-2 RT-PCR was still positive,but specific antibodies appeared.Furthermore,the viral shedding time significantly decreased when the A1,430G or C12,473T mutation occurred(P<0.01 and FDR<0.01)and increased when G227A occurred(P<0.05 and FDR<0.05).High IL1R1,IL1R2,and TNFRSF21 expression in the host positively correlated with viral shedding time(P<0.05 and false discovery rate<0.05).Prolonged viral RNA shedding often occurs but may not increase disease damage.Prolonged viral RNA shedding is associated with viral mutations and host factors. | Zhengtu Li Yinhu Li Ruilin Sun Shaoqiang Li Lingdan Chen Yangqing Zhan Mingzhou Xie Jiasheng Yang Yanqun Wang Airu Zhu Guoping Gu Le Yu Shuaicheng Li Tingting Liu Zhaoming Chen Wenhua Jian Qian Jiang Xiaofen Su Weili Gu Liyan Chen Jing Cheng Jincun Zhao Wenju Lu Jinping Zheng Shiyue Li Nanshan Zhong Feng Ye | 2021 | Science China(Life Sciences)2021，64，12： | 1 |
| 3 | Thalidomide plus chemotherapy exhibit enhanced efficacy in the clinicaltreatment of T-cell non?Hodgkin’s lymphoma: A prospective study of 46 cases显示文摘 | Hongyang Wu Chenchen Zhao Kangsheng Gu Yang Jiao Jiqing Hao Guoping Sun | 2014 | Molecular and Clinical Oncology2014，，： | 1 |
| 4 | Generation mechanism and control of high-frequency vibration for tracked vehicles显示文摘A crawler system provides much larger ground contact,leading to excellent terrain adaptability.Due to its structural characteristics,high‐frequency vibration proportional to the vehicle speed is generated during the driving process.This is a result of the polygon and rolling effects between the track and the wheels.A field test of a tracked vehicle is performed to monitor movement signals of the chassis and a rocker arm.Their corresponding power spectral density distributions confirm the correctness of the frequency‐calculation equation.Then,a novel elastic track tensioning device with a damper is designed as a cushion between the idler and the chassis.Depending on its geometry,the equivalent damping coefficient for a dynamic model is evaluated.Subsequently,the damping is altered in response to different operating conditions by a hybrid damping fuzzy semiactive control system.The controller accounts for both chassis and track vibration.Based on the transfer matrix method for multibody systems,a dynamical model of the track system is developed.Control performances are evaluated using two numerical simulations of obstacle crossing and off‐road driving operations.Results indicate that the proposed semiactive tensioner is substantially better than the conventional one.This paper provides a novel feasible scheme for vibration reduction of tracked vehicles. | Pingxin Wang Xiaoting Rui Feifei Liu Guoping Wang Hailong Yu Bin He Junjie Gu | 2023 | International Journal of Mechanical System Dynamics2023，3，2： | 0 |
| 5 | Three Pillars in the Biden Administration’s China Strategy:Allies,Values,and High-Tech显示文摘The Biden Administration has inherited its predecessor’s strategic perception about the growing competition among great powers.As a result,its policy toward China has been largely an extension of its predecessor’s,retaining the elements of competition and revising the instruments to outcompete China.The Biden Administration’s China policy has revolved around three pillars-allies,values,and high-tech,which it believes are America’s strengths in its relations with China.Since Biden took office,the United States has spent most of its diplomatic resources consolidating and building smaller security,economic,and tech alliances with membership restricted to democratic allies only,in an attempt to delink from China and consolidate its hegemonic status in the world.This policy carries the pernicious effect of plunging the world into Cold War-like confrontations. | GU Guoping | 2022 | International Relations and Diplomacy2022，10，6： | 0 |
| 6 | China's G20 Policy: Continuation and Adjustment显示文摘 | Guoping GU | 2016 | International Relations and Diplomacy2016，4，8： | 0 |
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