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13篇 您的检索式:作者名="Junyang Lu"
    题名 作者 年代 出处 被引量
1Dynamic deformation behavior of a face-centered cubic FeCoNiCrMn high-entropy alloy显示文摘In this study, mechanical tests were conducted on a face-centered cubic Fe Co Ni Cr Mn high-entropy alloy,both in tension and compression, in a wide range of strain rates(10^(-4)–10~4 s^(-1)) to systematically investigate its dynamic response and underlying deformation mechanism. Materials with different grain sizes were tested to understand the effect of grain size, thus grain boundary volume, on the mechanical properties. Microstructures of various samples both before and after deformation were examined using electron backscatter diffraction and transmission electron microscopy. The dislocation structure as well as deformation-induced twins were analyzed and correlated with the measured mechanical properties.Plastic stability during tension of the current high-entropy alloy(HEA), in particular, at dynamic strain rates, was discussed in lights of strain-rate sensitivity and work hardening rate. It was found that, under dynamic conditions, the strength and uniform ductility increased simultaneously as a result of the massive formation of deformation twins. Specifically, an ultimate tensile strength of 734 MPa and uniform elongation of $63% are obtained at 2.3 × 10~3 s^(-1), indicating that the alloy has great potential for energy absorption upon impact loading.Junyang He Qi wang Husheng Zhang Lanhong Dai Toshiji Mukai Yuan Wu Xiongjun Liu Hui Wang Tai-Gang Nieh Zhaoping Lu 2018Science Bulletin2018,63,6:9
2Suboptimal Temperature Acclimation Enhances Chilling Tolerance by Improving Photosynthetic Adaptability and Osmoregulation Ability in Watermelon显示文摘The temperature drop of plants from the optimal requirements can increase tolerance to severe chilling stress. Photosynthesis and osmoregulators were analyzed during chilling stress to explore the adaptation mechanisms that underlie the induction of chilling tolerance in response to suboptimal temperature. The relationships of these processes to suboptimal temperature acclimation in watermelon were then determined.Suboptimal temperature-acclimated watermelon plants demonstrated tolerance during chilling stress, as indicated by the decreased electrolyte leakage and malondialdehyde accumulation compared with those non-acclimated watermelon plants. Chilling-induced photoinhibition and reduction in CO2 assimilation rate were alleviated after suboptimal temperature acclimation. The xanthophyll cycle level was enhanced by improving thermal dissipation ability and avoiding light damage. Consequently, the chilling tolerance of suboptimal temperature-acclimated watermelon plants was enhanced. The osmoregulation ability induced by suboptimal temperature acclimation protected watermelon plants against chilling injury because of the accumulation of small molecular substances, such as soluble sugar and proline. The protein levels of Rubisco activase(ClRCA) and the gene expression of the Benson–Calvin cycle simultaneously increased in suboptimal temperature-acclimated watermelon plants during chilling stress. Chilling tolerance in watermelon plants induced by suboptimal temperature acclimation is associated with enhanced photosynthetic adaptability and osmoregulation ability.Junyang Lu Muhammad Azher Nawaz Nannan Wei Fei Cheng Zhilong Bie 2020Horticultural Plant Journal2020,6,1:8
3An Electrochemically Assisted Mechanically Controllable Break Junction Approach for Single Molecule Junction Conductance Measurements显示文摘我们向调查单个分子传导力汇报一条电气化学地帮助的机械地可控制的裂缝连接(EC-MCBJ ) 途径。与金 nanobridge 连接的电极对被电气化学的免职制作然后在一个 homebuilt MCBJ 平台上增长了。很多 Au- molecule-Au 连接被金 nanobridge 碎重复并且重新连接顺序生产。以便测量他们的单个分子传导力,统计传导力直方图为 benzene-1,4-dithiol (BDT ) 和 4,4-bipyridine (BPY ) 被产生。从这些直方图提取的价值被发现在象以前在文学报导的价值的一样的范围。我们的方法从过去常然而,获得这些以前报导的文学价值的是不同的因为它更快,更简单,更划算,并且改变电极材料是更方便的。Yang Yang Zhaobin Chen Junyang Liu Miao Lu Dezhi Yang Fangzu Yang Zhongqun Tian 2011Nano Research2011,4,12:4
4Evaluation of Epstein-Barr Virus Salivary Shedding in HIV/AIDS Patients and HAART Use: A Retrospective Cohort Study显示文摘Little data is available on the evaluation of the occurrence rates of Epstein-Barr virus(EBV) in saliva and relationship with highly active antiretroviral therapy(HAART) use in HIV/AIDS patients in China. We conducted a retrospective cohort study of EBV serological tests for HIV/AIDS patients who were treated in the hospitals for infectious diseases in Wuxi and Shanghai, China from May 2016 to April 2017. The EBV-seropositive samples were identified by ELISA. EBV-specific primers and probes were used for the quantitative detection of viral DNA from saliva via quantitative real-time polymerase chain reaction. CD4 cell counts of the HIV/AIDS patients were detected by a flow cytometry. A total of 372 HIV/AIDS patients were ultimately selected and categorized for this retrospective cohort study. For EBV IgG and IgM, the HIV/AIDS HAART use(H) and non-HAART use(NH) groups had significantly higher seropositive rates than the HIV-negative control group. The HIV/AIDS(NH) group had the highest seropositive rate(IgG, 94.27%; IgM, 68.98%) and the highest incidence of EBV reactivation or infection. For salivary EBV DNA-positive rates and quantities, the HIV/AIDS(H)(73.69%) and the HIV/AIDS(NH)(100%) groups showed significantly higher values than the HIV-negative control group(35.79%,[ twofold). Further, the salivary EBV DNA-negative population had significantly higher CD4 cell counts than the EBV DNA-positive population in the HIV/AIDS(H) group and the HIV/AIDS(NH) groups. Thus, HAART use is beneficial in decreasing the EBV salivary shedding in HIV/AIDS patients and indirectly decreases EBV transmission risk.Yan Yan Yong Ren Renfang Chen Jing Hu Yongjia Ji Junyang Yang Jiayin Shen Lvyin Hu Hao Pei Jun Wang Yuanwang Qiu Hongzhou Lu Lihua Huang 2018Virologica Sinica2018,33,3:3
5Promising electroplating solution for facile fabrication of Cu quantum point contacts显示文摘在这篇文章,我们在制造和一个新奇、电气化学地帮助的机械地可控制的裂缝连接(EC-MCBJ ) 准备的 Cu 量点接触的运输大小上报导方法。由采用影印石版术和湿蚀刻的过程,推迟了电极对在 Si 微芯片上成功地有图案、制作。而非采用一个酸 Cu electroplating 答案,一个新奇碱的 electroplating 答案被开发并且利用了建立在电极对之间的 Cu nanocontacts。典型地,同样制作的 Cu nanocontacts 的宽度被发现比 18 nm 小。很多 Cu 量点接触然后被造家的 MCBJ 安装生产并且描绘。除了常规直方图,在山峰趋于与增加传导力在振幅减少的地方,传导力直方图的一种异常类型,展出不同山峰振幅,被观察。通过最大值的统计分析 Si 微芯片,和理论计算的许可的弯曲,我们证明我们的碱的 Cu electroplating 答案负担得起与随后的 MCBJ 操作兼容的 Cu nanocontacts,它为 Cu 量点接触的制造是必要的。当复杂电子横梁平版印刷术没被要求, EC-MCBJ 方法快、简单、划算。而且,它是可能的对从他们的各自的 electroplating 答案的各种各样的金属的量点接触的制造和描述合适。Yang Yang Junyang Liu Jueting Zheng Miao Lu Jia Shi Wenjing Hong Fangzu Yang Zhongqun Tian 2017Nano Research2017,10,10:2
6The aggregation characteristics and formation mechanism of nanoparticles in ductile shear zone显示文摘1 Introduction Nanoparticles are widely found in the ductile shear zone and it is considered to have a close relation with faulting.The sizes of these nanoparticles are generallyless than 100 nm.They have a variety of morphologies like globular structure rod-like and tubular,by the order aggregating of these nanoparticles variousCAI Zhourong HUANG Qiangtai LI Jianfeng XIANG Junyang LU Lijuan 2017Acta Geologica Sinica(English Edition)2017,91,S1:1
7A novel CyclinE/CyclinA-CDK Inhibitor targets p27 Kip1 degradation, cell cycle progression and cell survival: Implications in cancer therapy显示文摘Lu Dai Yuqing Liu Junyang Liu Xiaoming Wen ZhengShuang Xu Zhuo Wang Hong Sun Shoubin Tang Anita R. Maguire Junmin Quan Hui Zhang Tao Ye 2013Cancer Letters2013,,1:1
8A novel CyclinE/CyclinA-CDK Inhibitor targets p27 Kip1 degradation, cell cycle progression and cell survival: Implications in cancer therapy显示文摘Lu Dai Yuqing Liu Junyang Liu Xiaoming Wen ZhengShuang Xu Zhuo Wang Hong Sun Shoubin Tang Anita R. Maguire Junmin Quan Hui Zhang Tao Ye 2013Cancer Letters2013,,1:1
9Multi-elemental analysis of fertilizer using laser-in- duced breakdown spectroscopy coupled with partial least squares regression显示文摘YAO SHUNCHUN LU JIDONG LI JUNYANG et al 2010Journal of Analytical A- tomic Apectrometry2010,,25:1
10A novel CyclinE/CyclinA-CDK Inhibitor targets p27 Kip1 degradation, cell cycle progression and cell survival: Implications in cancer therapy显示文摘Lu Dai Yuqing Liu Junyang Liu Xiaoming Wen ZhengShuang Xu Zhuo Wang Hong Sun Shoubin Tang Anita R. Maguire Junmin Quan Hui Zhang Tao Ye 2013Cancer Letters2013,,1:1
11Long-term case-fatality rate of nontuberculous mycobacterial disease in people living with HIV显示文摘Background:Few data are available regarding the long-term case-fatality rate(CFR)among people living with HIV(PLWH)with nontuberculous mycobacteria(NTM)disease.The aim of this study is to analyze the long-term CFR in patients with NTM disease and to identify risk factors for their death.Methods:A retrospective cohort study of 379 cases of microbiologically confirmed NTM disease in PLWH was conducted from January 1,2012,to December 31,2020,in Shanghai,China.We used Kaplan-Meier survival analysis and the log-rank test to compare the long-term CFR in patients with disseminated NTM(DNTM)and localized NTM disease.Univariate Cox proportional hazards regression analysis and a stepwise Cox proportional hazards regression model were used to estimate the predictors of long-term CFR.Results:The cohort was followed up for a median of 26 months.The total CFR was 15.7%by one year and increased to 22.6%at 5 years after the diagnosis of NTM disease.The 5-year CFR of PLWH with DNTM was significantly higher than that of PLWH with localized NTM(26.7%vs 19.6%for DNTM and localized NTM disease,respectively).Older age[hazard ratio(HR)=1.04,95%confidence interval(CI):1.02-1.06,P<0.001],comorbidity(HR=2.05,95%CI:1.21-3.49,P<0.01),DNTM(HR=2.08,95%CI:1.17-3.68,P<0.05),and HIV viral load(HR=1.32,95%CI:1.12-1.55,P<0.001)were all independent risk factors for long-term CFR.In the subgroup analysis,time to culture positivity was negatively correlated with CFR in patients with DNTM(HR=0.90,95%CI:0.82-0.98,P<0.05).Conclusions:NTM was associated with a high long-term CFR in PLWH.Further approaches to prevent NTM disease in PLWH are urgently needed.Jingjing Hu Ling Gu Yueming Shao Renfang Zhang Tangkai Qi Jianjun Sun Zhenyan Wang Wei Song Yang Tang Jiangrong Wang Shuibao Xu Junyang Yang Yinzhong Shen Li Liu Jun Chen Hongzhou Lu 2022Infectious Diseases of Poverty2022,11,1:0
12Structure Identification for Force-Induced Reaction Using Single-Molecule Conductance Measurement显示文摘Spiropyran derivatives are prototype mechanophores with a promising application as molecular sensors because of their changeable structure under external force stimuli.However,the chemical structure evolution under external stimuli remains unclear due to the uncertainty and difficulty in distinguishing the structures of different ring-opened merocyanine isomers generated in the force-induced reaction.Here we identify the structure of isomers produced by the force-induced reaction of spiropyran derivatives using a single-molecule conductance measurement and an unsupervised clustering algorithm.We found that the original data from the single-molecule conductance measurement can be divided into four clusters through unsupervised clustering.By introducing a photoinduced reaction and theoretical calculation,we identified and attributed the four clusters of data to the multiple states of the molecular junctions.Our work demonstrates that a single-molecule break junction measurement can distinguish the isomers in the force-induced reaction,suggesting the great potential of single-molecule conductance measurement and unsupervised clustering approaches for structural analysis.Jueting Zheng Wenli Gao Taige Lu Lijue Chen Luchun Lin Ruiyun Huang Yongxiang Tang Gang Dong Junyang Liu Yifei Pan Wengui Weng Wenjing Hong 2023CCS Chemistry2023,5,8:0
13Polyamines and antioxidant defense system are associated with cold tolerance in centipedegrass显示文摘Physiological responses to low temperature were analyzed in a chilling-tolerant centipedegrass(Eremochloa ophiuroides) accession, Shao Guan(SG), in comparison to the commercial cultivar, Common. Lower levels of ion leakage and higher chlorophyll(Chl)concentration were observed in SG than in Common during chilling stress. The maximum photochemical efficiency, the actual photosystem Ⅱ(PSII) efficiency,photochemical quenching efficiency, and net photosynthetic rate were decreased during chilling stress in both genotypes, with higher levels of these parameters shown by SG than Common. In addition, higher activities of superoxide dismutase(SOD), catalase(CAT), ascorbateperoxidase(APX) and glutathione reductase(GR), and higher concentrations of ascorbic acid(AsA) and glutathione(GSH) were observed in SG than in Common.Moreover, higher concentrations of putrescine(Put),spermidine(Spd), and spermine(Spm) were observed in SG than in Common. Correlation analysis indicated that SOD, CAT, APX and GR activities, and As A and GSH concentrations showed high correlation to Put, while APX,GR, and As A concentrations were correlated to Spd.Exogenous Put or Spd increased antioxidant enzyme activities and chilling tolerance. The results suggested that polyamine-regulated antioxidants are important for chilling tolerance in centipedegrass and protect plants against chilling induced oxidative damage.Jingjing CHEN Junyang FANG Zhenfei GUO Shaoyun LU 2018Frontiers of Agricultural Science and Engineering2018,5,1:0
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