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59篇 您的检索式:作者名="Jinping Yu"
    题名 作者 年代 出处 被引量
1Epidemiological and risk analysis of the H7N9 subtype influenza outbreak in China at its early stage显示文摘Dozens of human cases infected with H7N9 subtype avian influenza virus (AIV) have been confirmed in China since March, 2013. Distribution data of sexes, ages, professions and regions of the cases were analyzed in this report. The results showed that the elderly cases, especially the male elderly, were significantly more than expected, which is different from human cases of H5N1 avian influenza and human cases of the pandemic H1N1 influenza. The outbreak was rated as a Grade Ⅲ (severe) outbreak, and it would evolve into a Grade IV (very severe) outbreak soon, using a method reported previously. The H7N9 AIV will probably circulate in humans, birds and pigs for years. Moreover, with the driving force of natural selection, the virus will probably evolve into highly pathogenic AIV in birds, and into a deadly pandemic influenza virus in humans. Therefore, the H7N9 outbreak has been assumed severe, and it is likely to become very or extremely severe in the future, highlighting the emergent need of forceful scientific measures to eliminate any infected animal flocks. We also described two possible mild scenarios of the future evolution of the outbreak.ZHUANG QingYe WANG SuChun WU MeiLi LIU Shuo JIANG WenMing HOU GuangYu LI JinPing WANG KaiCheng YU JianMin CHEN JiMing CHEN JiWang 2013Chinese Science Bulletin2013,58,26:18
2SIS accuracy and service performance of the BDS-3 basic system显示文摘On December 27,2018,the basic system of the third-generation BeiDou navigation satellite system(BDS-3)completed the deployment of its constellation of 18 MEO networking satellites as well as the construction of the operation control system(OCS)and began to provide basic navigation services to users worldwide.Compared with BDS-2,BDS-3 aims to offer users better navigation signals and higher precision with a series of new technologies.For example,the spaceborne atomic clock of BDS-3 is upgraded for higher performance,the Ka-band inter-satellite link is adopted for inter-satellite ranging and communication,and new B1C and B2a signals are broadcast in addition to B1I and B3I signals(compatible with BDS-2).In addition,a 9-parameter model based on a spherical harmonic function is employed for ionospheric delay corrections.Using the observation data from 18 satellites of the basic system,this paper conducts a comprehensive evaluation of the pseudorange measurement characteristics,signal-in-space(SIS)accuracy of navigation messages and global service capability of BDS-3.The results indicate that the pseudorange measurement multipath effect and observation noise of BDS-3 satellites are better than those of BDS-2;additionally,with the support of inter-satellite links,the user range error(URE)of the BDS-3 satellite broadcast ephemeris is better than 10 cm,the precision of the broadcast clock parameter is better than 1.5 ns,and the SIS accuracy is better than 0.6 m overall.Different from the traditional Klobuchar model,the BeiDou global broadcast ionospheric delay correction model(BDGIM)can provide ionospheric delay corrections better than 70%for worldwide single-frequency users.The service capability evaluation of the basic system consists mainly of the accuracy improvement of the B1I and B3I signals according to BDS-2 as well as the global positioning accuracy of the new signals.These results prove that the BDS-3 basic system has achieved the design goal;that is,both the horizontal and the vertical global positioning accuracies are better than 10 m(95%).In the future,6 MEO satellites as well as 3 GEO satellites and 3 IGSO satellites for regional enhancement purposes will be deployed for full operation;consequently,BDS-3 will definitely provide a higher SIS accuracy and better service capability.JinPing Chen XiaoGong Hu ChengPan Tang ShanShi Zhou YuFei Yang JunYang Pan Hui Ren YueXin Ma QiuNing Tian Bin Wu Yang Yu 2020Science China(Physics,Mechanics & Astronomy)2020,63,6:14
3On theory and methods for advanced detonation-driven hypervelocity shock tunnels显示文摘This study describes theory and methods for developing detonation-driven shock tunnels in hypervelocity test facilities.The primary concept and equations for high-enthalpy shock tunnels are presented first to demonstrate the unique advantage of shock tubes for aerodynamic ground-based testing.Then,the difficulties in simulating flight conditions in hypervelocity shock tunnels are identified,and discussed in detail to address critical issues underlying these difficulties.Theory and methods for developing detonation drivers are proposed,and relevant progress that has advanced the state of the art in large-scale hypersonic test facilities is presented with experimental verifications.Finally,tailored conditions for detonation-driven shock tunnels are described,laying a solid foundation to achieve long test duration.This interface-matching key issue encountered in developing shock tunnels has been investigated for decades,but not solved for detonation drivers in engineering applications.Zonglin Jiang Jinping Li Zongmin Hu Yunfeng Liu Hongru Yu 2020National Science Review2020,7,7:6
4Estrogen and insulin synergistically promote endometrial cancer progression via crosstalk between their receptor signaling pathways显示文摘Objective: Despite evidence that estrogens and insulin are involved in the development and progression of many cancers, their synergistic role in endometrial carcinoma(EC) has not been analyzed yet.Methods: Here, we investigated how estrogens act synergistically with insulin to promote EC progression. Cell growth in vitro and in vivo, effects of estradiol and insulin on apoptosis and cell cycle distribution, and expression and activation of estrogen receptor(ER), insulin receptor(InsR), and key proteins in the PI3K and MAPK pathways were examined after combined stimulation with estradiol and insulin.Results: Compared to EC cells treated with estradiol or insulin alone, those treated with both estradiol and insulin exhibited stronger stimulation. Estradiol significantly induced phosphorylation of InsR-β and IRS-1, whereas insulin significantly induced phosphorylation of ER-α. In addition, treatment with both insulin and estradiol together significantly increased the expression and phosphorylation of Akt, MAPK, and ERK. Notably, InsR-β inhibition had a limited effect on estradiol-dependent proliferation,cell cycle, and apoptosis, whereas ER-α inhibition had a limited insulin-dependent effect, in EC cell lines. Insulin and estradiol individually and synergistically promoted EC xenograft growth in mice.Conclusions: Estrogen and insulin play synergistic roles in EC carcinogenesis and progression by activating InsR-β and ER-α,promoting a crosstalk between them, and thereby resulting in the activation of downstream PI3K/Akt and MAPK/ERK signaling pathways.Wenyan Tian Fei Teng Jinping Gao Chao Gao Guoyan Liu Yanfang Zhang Shizhu Yu Wei Zhang Yingmei Wang Fengxia Xue 2019Cancer Biology & Medicine2019,16,1:6
5Design and fabrication of superconducting HEB mixer显示文摘This paper describes the design and fabrication of superconducting hot electron bolometer (HEB) mixer based on ultra-thin superconducting NbN films. The high quality films were epitaxially grown on high resistance Si substrates. The device was fabricated by magnetron sputtering, electron beam lithography (EBL), reactive ion etching (RIE), lithography, and so on. The device's resistance-tempera-ture (R-T) curves and current-voltage (I-V) curves were studied. The results of THz response of the device are presented. Y-factor technique was used to measure the device's noise temperature. When the device was irradiated with a laser radiation of 2.5 THz, the obtained lowest noise temperature of the device was 2213 K.WANG JinPing LI YangBin KANG Lin WANG Yu ZHONG YangYin LIANG Min CHEN Jian CAO ChunHai XU WeiWei WU PeiHeng 2009Chinese Science Bulletin2009,54,12:5
6High-Sensitivity Gas Detection with Air-Lasing-Assisted Coherent Raman Spectroscopy显示文摘Remote or standoff detection of greenhouse gases,air pollutants,and biological agents with innovative ultrafast laser technology attracts growing interests in recent years.Hybrid femtosecond/picosecond coherent Raman spectroscopy is considered as one of the most versatile techniques due to its great advantages in terms of detection sensitivity and chemical specificity.However,the simultaneous requirement for the femtosecond pump and the picosecond probe increases the complexity of optical system.Herein,we demonstrate that air lasing naturally created inside a filament can serve as an ideal light source to probe Raman coherence excited by the femtosecond pump,producing coherent Raman signal with molecular vibrational signatures.The combination of pulse self-compression effect and air lasing action during filamentation improves Raman excitation efficiency and greatly simplifies the experimental setup.The air-lasing-assisted Raman spectroscopy was applied to quantitatively detect greenhouse gases mixed in air,and it was found that the minimum detectable concentrations of CO_(2) and SF_(6) can reach 0.1%and 0.03%,respectively.The ingenious designs,especially the optimization of pump-seed delay and the choice of perpendicular polarization,ensure a high detection sensitivity and signal stability.Moreover,it is demonstrated that this method can be used for simultaneously measuring CO_(2) and SF_(6) gases and distinguishing ^(12)CO_(2) and ^(13)CO_(2).The developed scheme provides a new route for high-sensitivity standoff detection and combustion diagnosis.Zhihao Zhang Fangbo Zhang Bo Xu Hongqiang Xie Botao Fu Xu Lu Ning Zhang Shupeng Yu Jinping Yao Ya Cheng Zhizhan Xu 2022Ultrafast Science2022,,2:4
7Estimation of stature by using the dimensions of the right hand and right foot in Han Chinese adults显示文摘The Han Chinese people are the main ethnic group in China and the largest ethnic group in the world.The dimensions of the hands and feet have been successfully used for the estimation of stature.A total of 26,927 healthy adult subjects,comprising 13,221 men and 13,706 women,were recruited.The survey samples were chosen through random cluster sampling.The mean values were significantly higher in men than those in women for all measurements(P<0.001).All the measurements showed a statistically significant correlation with stature(P<0.01).The combination of the right hand length and the right foot length was the best predictor of stature because it had the lowest standard error of estimate.The use of multiple regression equations yielded better results than did the use of linear regression equations.The accuracy of stature prediction ranged from ±4.81 to ±6.39 cm.The present study was of great importance with regards to improving the physical anthropology database of ethnic groups in China.Xinghua Zhangi Yu Wei Lianbin Zhengi Keli Yu Dapeng Zhao Jinping Bao Yonglan Li Shunhua Lu Huanjiu Xi Guochang Xu Youfeng Wen 2017Science China(Life Sciences)2017,60,1:4
8Ecological niche and in-situ control of MIB producers in source water显示文摘Odor problems in source water caused by 2-methylisoborneol(MIB) have been a common issue in China recently, posing a high risk to drinking water safety. The earthy-musty odorant MIB has an extremely low odor threshold(4–16 ng/L) and is hard to remove via conventional processes in drinking water plants(DWP), and therefore could easily provoke complaints from consumers. This compound is produced by a group of filamentous cyanobacteria, mainly belonging to Oscillatoriales. Different from the well-studied surface-blooming Microcystis, filamentous cyanobacteria have specific niche characteristics that allow them to stay at a subsurface or deep layer in the water column. The underwater bloom of these MIB producers is therefore passively determined by the underwater light availability, which is governed by the cell density of surface scum. This suggests that drinking water reservoirs with relatively low nutrient contents are not able to support surface blooms, but are a fairly good fit to the specialized ecological niche of filamentous cyanobacteria;this could explain the widespread odor problems in source water. At present, MIB is mainly treated in DWP using advanced treatment processes and/or activated carbon, but these post-treatment methods have high cost, and not able to deal with water containing high MIB concentrations.Thus, in situ control of MIB producers in source water is an effective complement and is desirable. Lowering the underwater light availability is a possible measure to control MIB producers according to their niche characteristics, which can be obtained by either changing the water level or other measures.Ming Su MD.Suruzzaman Yiping Zhu Jinping Lu Jianwei Yu Yu Zhang Min Yang 2021Journal of Environmental Sciences2021,33,12:3
9Statistical Characteristics of Metastable Pitting of 316 Stainless Steel显示文摘The statistical characteristics of the Current fluctuations during metastable pitting of 316L stain- less steel in NaCI solution were studied using potentiostatic method. The growth rates and peak currents of metastable pits followed log-normal distributions. As potential and chloride concentration increased, both growth rate and peak current of metastable pits increased. The lifetime of metastable pits also followed log-normal distribution. and was almost not affected by potential. Higher growth rates did not definitely result in larger metastable pits. A certain propagation rate range was found beneficial for the micropit to remain growth. At constant potential, the maximum peak currents in different time intervals during a potentiostatic test followed extreme distribution. The statistical characteristics of metastable pitting may be used to predict the tendency of pitting corrosion.Yu ZUO, Haiou DU and Jinping XIONG (Dept. of Applied Chemistry, Beijing University of Chemical Technology, Beijing 100029, China) 2000Journal of Materials Science & Technology2000,16,3:3
10THE CHRONICLE OF EVENTS OF THE ESCAP/WMO TYPHOON COMMITTEE FROM 1968 TO 2017显示文摘Years Significant EventsTC Chair/Vice Chair1968UN ESCAP at its 24th Session at Canberra in April 1968,WMO Executive Committee at its 20th Session in 1968 endorsed the establishment of the Typhoon Committee in accordance with the Statute.The Typhoon Committee was organized by the Governments of China;Hong Kong,China;Japan;Republic of Korea;Laos;the Philippines and Thailand as 7 founder Members,with ESCAP and WMO as ex-officio Members.Vice-Adm Sanit Vesa Rajananda,Thailand/Dr.Roman L.Kintanar Philippines.JINPING LIU JIXIN YU 2018Tropical Cyclone Research and Review2018,7,1:3
11Rhodojaponin Ⅵ indirectly targets Cav2.2 channels via N-ethylmaleimide-sensitive fusion protein to alleviate neuropathic pain显示文摘Neuropathic pain is a chronic disease that severely afflicts the life and emotional status of patients,but currently available treatments are often ineffective.Novel therapeutic targets for the alleviation of neuropathic pain are urgently needed.Rhodojaponin Ⅵ,a grayanotoxin from Rhododendron molle,showed remarkable antinociceptive efficacy in models of neuropathic pain,but its biotargets and mechanisms are unknown.Given the reversible action of rhodojaponin Ⅵ and the narrow range over which its structure can be modified,we perforwmed thermal proteome profiling of the rat dorsal root ganglion to determine the protein target of rhodojaponin Ⅵ.N-Ethylmaleimide-sensitive fusion(NSF) was confirmed as the key target of rhodojaponin Ⅵ through biological and biophysical experiments.Functional validation showed for the first time that NSF facilitated trafficking of the Cav2.2 channel to induce an increase in Ca2+current intensity,whereas rhodojaponin Ⅵ reversed the effects of NSF.In conclusion,rhodojaponin Ⅵ represents a unique class of analgesic natural products targeting Cav2.2 channels via NSF.Keliang Chen Tao Wang Yong Li Jun Wu Cheng-Xiao Zhao Sheng Liu Fengrun Sun Yehong Fang Jiahuan Hu Jinping Hu Chong-Jing Zhang Haibo Yu Chao Ma Shi-Shan Yu 2023Acta Pharmaceutica Sinica B2023,13,3:2
12Monascus vinegar alleviates high-fat-diet-induced inflammation in rats by regulating the NF-κB and PI3K/AKT/mTOR pathways显示文摘Monascus vinegar(MV) is a typical fermented food with various health-promoting effects. This study aimed to evaluate the role of MV in alleviating high-fat-diet-induced inflammation in rats with hyperlipidemia and elucidate the possible regulatory mechanisms. In the study, serum lipid profiles, liver pathology and liver inflammatory cytokines were analyzed in hyperlipidemia rats with MV(0.5 mL/kg mb, 2 mL/kg mb). Results showed that the administration of MV alleviated dyslipidemia by decreasing the serum and liver levels of triglyceride and total cholesterol. Increase in hepatic lipase and carnitine palmitoyl transferase 1(CPT-1)levels and decrease in hepatocyte steatosis, nephritis, and intestinal tissue injury in the HD group showed that high-dose MV can significantly suppress hepatic lipid accumulation and steatosis. In addition, compared with the model(MOD) group, the HD group showed significantly down-regulated the level of serum or hepatic alanine aminotransferase(ALT), aspartate aminotransferase(AST), CPT-1, interleukin(IL)-2, IL-6, IL-12,and tumor necrosis factor α(TNF-α). Moreover, the HD group showed repressed hepatic nuclear factor κB(NF-κB) pathway and inactivated phosphatidylinositol 3-kinase(PI3K)/protein kinase B(Akt)/mammalian target of rapamycin(mTOR) pathway mitigated liver inflammation. Similar results were obtained from cell experiments. Collectively, these findings revealed that MV might attenuate high-fat-diet-induced inflammation by inhibiting the NF-κB and PI3K/Akt/mTOR pathways.Huanmei Meng Jia Song Bingqian Fan Yingqi Li Jiaojiao Zhang Jinping Yu Yu Zheng Min Wang 2022Food Science and Human Wellness2022,11,4:2
13Effect of Surface Pretreatment on Adhesive Properties of Aluminum Alloys显示文摘粘合剂的余面, 盖片, 边砍力量和耐久性结合了有不同预告的处理的艾尔合金关节被余面, 盖片, 边砍测试和楔测试学习。结果显示由不同过程的结合的关节 pretreated 的最大的余面, 盖片, 边砍力量和耐久性被磨料报纸的等级影响并且能被磷酸阳极化显然改进。尽管它稍微影响最大的余面, 盖片, 边砍力量,碱蚀刻能显然改进结合的关节的耐久性。镇静的过程完成砂砾,去除的丙酮,碱蚀刻和阳极化的磷酸,提供结合的更好的粘合剂艾尔的性质合金。Jinsheng ZHANG Xuhui ZHAO Yu ZUO Jinping XIONG Xiaofeng ZHANG 2008Journal of Materials Science & Technology2008,24,2:2
14Pathogen-informed breeding for crop disease resistance显示文摘The development of durable and broad-spectrum resistance is an economical and eco-friendly approach to control crop diseases for sustainable agricultural production. Emerging knowledge of the molecular basis of pathogenesis and plant–pathogen interactions has contributed to the development of novel pathogen-informed breeding strategies beyond the limits imposed by conventional breeding. Here,we review the current status of pathogen-assisted resistance-related gene cloning. We also describe how pathogen effector proteins can be used to identify resistance resources and to inform cultivar deployment. Finally, we summarize the main approaches for pathogen-directed plant improvement,including transgenesis and genome editing. Thus, we describe the emerging role of pathogen-related studies in the breeding of disease-resistant varieties, and propose innovative pathogen-informed strategies for future applications.Qi Li Bi Wang Jinping Yu Daolong Dou 2021Journal of Integrative Plant Biology2021,63,2:2
15Study on diseases of ce- ment of concrete pavement in permafrost regions 显示文摘Li Jinping Sheng Yu Zhang Jinzhao 2010Cold Re- gions Science and Technology2010,60,1:1
16Macroeconomic Policy and Ownership Structure in a Mixed Transition Economy显示文摘 Katsuhiro and Jinping Yu 2000 2000Journal of Comparative Economics2000,,:1
17Study on Diseases of Cement Concrete Pavement in Permafrost Regions显示文摘LI Jinping SHENG Yu ZHANG Jinzhao 2010Cold Regions Science and Technology2010,60,1:1
18Wireless sensing experiments for structural vibration monitoring of offshore platform显示文摘In order to validate the feasibility of applying wireless sensing technique to structural monitoring of offshore platform,the experiment of wireless sensor network on offshore platform is presented in this paper.First,wireless sensor network and its topology structure is put forward,and the design of sensor nodes,base station,communication protocol is discussed according to selfdeveloped wireless sensor network.Second,true offshore platform and its experimental model are introduced.Finally,wireless sensing experiment for offshore platform structure is completed and the analysis of the experimental result is given.The research shows that wireless sensor network applied to offshore platform can reflect the vibration of the structure;the sensor nodes are fixed and removed expediently,which saves the cost of signal line as well as installation time.Yan YU Jinping OU 2008Frontiers of Electrical and Electronic Engineering in China2008,3,3:1
19Longitudinal 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 2021Science China(Life Sciences)2021,64,12:1
20Review of the achievement of ssop and its inspiration for future regional cooperation显示文摘Countries in Asia and the Pacific are more prone to natural disasters than those in other parts of the world.Because of this,there is an urgent need to continue developing effective,end-to-end early warning systems that lead to an effective response by emergency managers and people at risk.ESCAP/WMO Typhoon Committee(TC),in cooperation with WMO/ESCAP Panel on Tropical Cyclones(PTC),conducted a regional cooperation project on Synergized Standard Operating Procedures for Coastal Multi-Hazards Early Warning System(SSOP)with fund support from ESCAP Multi-Donor Trust Fund for Tsunami,Disaster and Climate Preparedness in Indian Ocean and South East Asia.SSOP project was conducted successfully and achieved its proposed goals.Its results and achievements greatly benefit the Members not only in the region but also in all other regions of WMO.The paper reviewed its implementation process,strategy and activities;briefed its main achievements including SSOP Manual,capacity building and cooperation mechanism between TC and PTC;summarized the experiences and lessons from project implementation;and highlighted its sustainability.The paper also suggested the approaches to enhance the sustainability of SSOP results and the cooperation between two regional bodies TC and PTC.Jixin Yu Jinping Liu Lisa Kou 2021Tropical Cyclone Research and Review2021,10,4:1
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