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25篇 您的检索式:作者名="Chengwei Qi"
    题名 作者 年代 出处 被引量
1Dual function of Arabidopsis A TAF1 in abiotic and biotic stress responses显示文摘NAC 家庭基因编码涉及多样的生物过程的植物特定的抄写因素。在这研究, Arabidopsis NAC 基因 ATAF1 被发现被干旱导致,高咸度, abscisic 酸(骆驼毛的织物) ,甲基 jasmonate,机械伤害,并且 Botrytis cinerea 感染。ATAF1 的重要正式就职在受到干旱或高咸度的骆驼毛的织物缺乏的变异的 aba2 被发现,揭示表示的骆驼毛的织物无关的机制。Arabidopsis ATAF1-overexpression 线显示了许多改变的显型,包括侏儒症和短主要的根。而且,在 vivo,实验显示 ATAF1 是真正的管理者 modulating 植物对许多不能生活的压力和 necrotrophic 病原体感染的回答。在 Arabidopsis 的 ATAF1 的 Overexpression 增加了植物敏感到骆驼毛的织物,盐,和氧化压力。特别, ATAF1 overexpression 种,然而并非异种排队显示出的显著地提高的植物忍耐到干旱。另外, ATAF1 overexpression 提高了植物危险性到 necrotrophic 病原体 B。cinerea,但是没改变 P 的无毒害或剧毒的紧张引起的疾病症状。syringae pv 西红柿 DC3000。转基因的植物 overexpressing ATAF1 对氧化应力过分敏感,建议反应的氧中介可能与响应病原体和不能生活的压力的调停 ATAF1 的发信号有关。Yaorong Wu Zhiyong Deng Jianbin Lai Yiyue Zhang Cuiping Yang Bojiao Yin Qingzhen Zhao Ling Zhang Yin Li Chengwei Yang Qi Xie 2009Cell Research2009,19,11:56
2SUMO E3 Ligase AtMMS21 Regulates Drought Tolerance in Arabidopsis thaliana显示文摘Post-translational modifications of proteins by small ubiquitin-like modifiers (SUMOs) play crucial roles in plant growth and development, and in stress responses. The MMS21 is a newly-identified Arabidopsis thaliana L. SUMO E3 ligase gene aside from the SIZ1, and its function requires further elucidation. Here, we show that MMS21 deficient plants display improved drought tolerance, and constitutive expression of MMS21 reduces drought tolerance. The expression of MMS21 was reduced by abscisic acid (ABA), polyethylene glycol (PEG) or drought stress. Under drought conditions, mms21 mutants showed the highest survival rate and the slowest water loss, and accumulated a higher level of free proline compared to wild-type (WT) and MMS21 over-expression plants. Stomatal aperture, seed germination and cotyledon greening analysis indicated that mms21 was hypersensitive to ABA. Molecular genetic analysis revealed that MMS21 deficiency led to elevated expression of a series of ABA-mediated stress-responsive genes, including COR15A, RD22, and P5CS1 The ABA and drought-induced stress-responsive genes, including RAB18, RD29A and RD29B, were inhibited by constitutive expression of MMS21. Moreover, ABA-induced accumulation of SUMO-protein conjugates was blocked in the mms21 mutant. We thus conclude that MMS21 plays a role in the drought stress response, likely through regulation of gene expression in an ABA-dependent pathway.Shengchun Zhang Yanli Qi Ming Liu Chengwei Yang 2013Journal of Integrative Plant Biology2013,55,1:17
3Prediction of Cross-Tension Strength of Self-Piercing Riveted Joints Using Finite Element Simulation and XGBoost Algorithm显示文摘Self-piercing riveting(SPR)has been widely used in automobile industry,and the strength prediction of SPR joints always attracts the attention of researchers.In this work,a prediction method of the cross-tension strength of SPR joints was proposed on the basis of finite element(FE)simulation and extreme gradient boosting decision tree(XGBoost)algorithm.An FE model of SPR process was established to simulate the plastic deformations of rivet and substrate materials and verified in terms of cross-sectional dimensions of SPR joints.The residual mechanical field from SPR process simulation was imported into a 2D FE model for the cross-tension testing simulation of SPR joints,and cross-tension strengths from FE simulation show a good consistence with the experiment result.Based on the verified FE model,the mechanical properties and thickness of substrate materials were varied and then used for FE simulation to obtain cross-tension strengths of a number of SPR joints,which were used to train the regression model based on the XGBoost algorithm in order to achieve prediction for cross-tension strength of SPR joints.Results show that the cross-tension strengths of SPR steel/aluminum joints could be successfully predicted by the XGBoost regression model with a respective error less than 7.6%compared to experimental values.Jianping Lin Chengwei Qi Hailang Wan Junying Min Jiajie Chen Kai Zhang Li Zhang 2021Chinese Journal of Mechanical Engineering2021,34,2:8
4Function of Ca^(2+)-/calmodulin-dependent protein kinase Ⅳ in Ca^(2+)-stimulated neuronal signaling and behavior显示文摘The activity of Ca2+/calmodulin-dependent protein kinase IV(Ca MKIV) is sensitive to activity-dependent changes in the level of intracellular Ca2+.Following neuronal stimulation,the activation of Ca MKIV may trigger synaptic modifications and transcriptional responses,both of which are involved in regulating cognitive and emotional behavior.Here,we used Ca MKIV knockout(KO) neurons and mice to examine the function of Ca MKIV in Ca2+-stimulated intracellular signaling and animal behavior,respectively.Following NMDA receptor activation or membrane depolarization,the up-regulation of CREB(c AMP responsive element binding protein) and its target gene Bdnf(brain-derived neurotrophic factor) was intact in cortical neurons obtained from Ca MKIV KO mice.Ca MKIV KO mice displayed severe impairment in contextual fear memory but normal locomotor activity and anxiety level in the contextual training chamber.Although Ca MKIV KO mice showed normal memory in the standard passive avoidance task,they were defective in learning the temporal dissociative passive avoidance task.As indicated by the light/dark test and marble-burying test data,Ca MKIV KO mice showed less anxiety and normal perseveration.In the voluntary wheel-running test,Ca MKIV KO mice showed normal running time and distance but higher maximal running speed.Our results demonstrate the function of Ca MKIV in regulating different forms of fear memory,anxiety,and certain aspect of motor function.SONG ZiXiang CHEN Qi DING Qi ZHENG Fei LI ChengWei XU LePing WANG HongBing 2015Science China(Life Sciences)2015,58,1:6
5Finite Frequency Fuzzy H∞Control for Uncertain Active Suspension Systems With Sensor Failure显示文摘This paper investigates the problem of finite frequency fuzzy H_∞ control for uncertain active vehicle suspension systems, in which sensor failure is taken into account. TakagiSugeno(T-S) fuzzy model is established for considered suspension systems. In order to describe the sensor fault effectively, a corresponding model is introduced. A vital performance index,H_∞ performance, is utilized to measure the drive comfort. In the framework of Kalman-Yakubovich-Popov theory, the H_∞ norm from external perturbation to controlled output is optimized effectively in the frequency domain of 4 Hz-8 Hz to enhance ride comfort level. Meanwhile, three suspension constrained requirements, i.e., ride comfort level, manipulation stability,suspension deflection are also guaranteed. Furthermore, sufficient conditions are developed to design a fuzzy controller to guarantee the desired performance of active suspension systems. Finally, the proposed control scheme is applied to a quarter-vehicle active suspension, and simulation results are given to illustrate the effectiveness of the proposed approach.Zhenxing Zhang Hongyi Li Chengwei Wu Qi Zhou 2018IEEE/CAA Journal of Automatica Sinica2018,5,4:4
6UBC32 Mediated Oxidative Tolerance in Arabidopsis显示文摘Extreme environments such as salt stress often increase the reactive oxygen species(ROS) levels(Abogadallah,2010; Miller et al.,2010),which cause protein denaturation and damage(Kelsen et al.,2008).In eukaryotic cells,the endoplasmic reticulum(ER) lumen is highly oxidative environment, which help newly synthesized proteins form intermolecular or intramolecular disulfide bonds between their cysteine residues. However,the ROS must be regulated according to the folding load to protect the cell from the consequences of oxidative folding.One way to control ROS level is to increase the expression level of ROS scavenger(Molteni et al.,2004); another way is to activate unfolded protein response(UPR),Feng Cui Lijing Liu Qingliang Li Chengwei Yang Qi Xie 2012Journal of Genetics and Genomics2012,39,8:2
7Variation of cell voltage with reaction time in electrochemical synthesis process of sodium dichromate显示文摘Li Chengwei Qi Tao Wang Fu'an 2006Chem Eng Technol2006,29,4:1
8Macrokinetic study of the electrochemical synthesis process of sodium dichromate显示文摘Li Chengwei Qi Tao Wang Fu'an 2007Chem Eng Technol2007,30,4:1
9Variation of cell voltage with reaction time in electrochemical synthesis process of sodium dichromate显示文摘Li Chengwei Qi Tao Wang Fu'an 2006Chemical Engineering and Technology2006,29,4:1
10A large insert Thellungiella halophila BIBAC library for genomics and identification of stress tolerance genes显示文摘Weiquan Wang Yaorong Wu Yin Li Jiaying Xie Zhonghui Zhang Zhiyong Deng Yiyue Zhang Cuiping Yang Jianbin Lai Huawei Zhang Hongyan Bao Sanyuan Tang Chengwei Yang Peng Gao Guixian Xia Huishan Guo Qi Xie 2010Plant Molecular Biology (-)2010,,1:1
11Several questions about multi - lateral horizontal well productivity formulae 显示文摘Li Bin Wang Lilei Qi Chengwei 2011Applied Mechanics and Materials2011,,7178:1
12Several questions a-bout multi - lateral horizontal well productivity formulae显示文摘Qi Chengwei Wang Lilei Li Bin 2011Applied Mechanics and Materials2011,,7178:1
13Several questions about multi-lateral horizontal well productivity formulae显示文摘Li Bin Wang Lilei Qi Chengwei 0,,71:1
14Several questions about multi-lateral horizontal well productivity formulae显示文摘Qi Chengwei Wang Lilei Li Bin 0,,71:1
15Several questions about multi-lateral horizontal well productivity formulae 显示文摘Li Bin Wang Lilei Qi Chengwei 2011Applied Mechanics and Materials2011,,7178:1
16Macrokinetic study of the electrochemical synthesis process of sodium dichromate显示文摘Li Chengwei Qi Tao Wang Fu'an 2007Chemical Engineering and Technology2007,30,4:1
17Variation of cell voltage with reaction time in electrochemical synthesis process of sodium di-chromate 显示文摘Li Chengwei Qi Tao Wang Fu'an 2006Chem Eng Technol2006,29,4:1
18Macrokinetic study of the electrochemical synthesis process of sodium dichromate 显示文摘Li Chengwei Qi Tao Wang Fu'an 2007Chem Eng Technol2007,30,4:1
19Several questions about multi-lateral horizontal well productivity formulae显示文摘QI Chengwei WANG Lilei LI Bin 2011Applied Mechanics and Materials2011,,7178:1
20Several questions about multi - lateral hori- zontal well productivity formulae 显示文摘Qi Chengwei 2011Applied Mechanics and Materials2011,,7178:1
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