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29篇 您的检索式:作者名="Jiangqi"
    题名 作者 年代 出处 被引量
1Mechanical Properties Prediction of the Mechanical Clinching Joints Based on Genetic Algorithm and BP Neural Network显示文摘For optimal design of mechanical clinching steel-aluminum joints, the back propagation(BP) neural network is used to research the mapping relationship between joining technique parameters including sheet thickness, sheet hardness, joint bottom diameter etc., and mechanical properties of shearing and peeling in order to investigate joining technology between various material plates in the steel-aluminum hybrid structure car body.Genetic algorithm(GA) is adopted to optimize the back-propagation neural network connection weights.The training and validating samples are made by the BTM? Tog-L-Loc system with different technologic parameters.The training samples' parameters and the corresponding joints' mechanical properties are supplied to the artificial neural network(ANN) for training.The validating samples' experimental data is used for checking up the prediction outputs.The calculation results show that GA can improve the model's prediction precision and generalization ability of BP neural network.The comparative analysis between the experimental data and the prediction outputs shows that ANN prediction models after training can effectively predict the mechanical properties of mechanical clinching joints and prove the feasibility and reliability of the intelligent neural networks system when used in the mechanical properties prediction of mechanical clinching joints.The prediction results can be used for a reference in the design of mechanical clinching steel-aluminum joints.LONG Jiangqi LAN Fengchong CHEN Jiqing YU Ping 2009Chinese Journal of Mechanical Engineering2009,22,1:22
2The nodulation and nyctinastic leaf movement is orchestrated by clock gene LHY in Medicago truncatula显示文摘As sessile organisms,plants perceive,respond,and adapt to the environmental changes for optimal growth and survival.The plant growth and fitness are enhanced by circadian clocks through coordination of numerous biological events.In legume species,nitrogen-fixing root nodules were developed as the plant organs specialized for symbiotic transfer of ni-trogen between microsymbiont and host.Here,we report that the endogenous circadian rhythm in nodules is regulated by MtLHY in legume species Medicago truncatula.Loss of function of MtLHY leads to a reduction in the number of nodules formed,resulting in a diminished ability to assimilate nitrogen.The operation of the 24-h rhythm in shoot is further influenced by the availability of nitrogen produced by the nodules,leading to the irregulated nyctinastic leaf movement and reduced biomass in mtlhy mutants.These data shed new light on the roles of MtLHY in the orchestration of circadian oscillator in nodules and shoots,which provides a mechanistic link between nodulation,nitrogen assimilation,and clock function.Yiming Kong Lu Han Xiu Liu Hongfeng Wang Lizhu Wen Xiaolin Yu Xiaodong Xu Fanjiang Kong Chunxiang Fu Kirankumar S.Mysore Jiangqi Wen Chuanen Zhou 2020Journal of Integrative Plant Biology2020,62,12:4
3One-step anti-superbug finishing of cotton textiles with dopamine-menthol显示文摘In this work,the one-step stereochemical antimicrobial finishing of cotton textiles(CT)was achieved by the oxidative copolymerization of a dopamine-menthol derivative(DAM)and dopamine(DA).The obtained DAM-modified CT(P(DAM-co-DA)-CT)exhibited broad-spectrum microbial anti-adhesion properties against bacteria(E.coli and P.aeruginosa),including superbugs(MRSA and VREF),and fungi(A.niger,A.flavus,M.racemosus and P.chrysogenum).Because of its unique stereochemical antimicrobial mechanism,the obtained P(DAM-co-DA)-CT is a non-releasing antimicrobial material that causes no skin sensitization and exhibits good biocompatibility.The coating was also found to enhance the UVresistant and mechanical properties of the CT.Furthermore,it displayed durable washing fastness and antimicrobial properties after the endurance of 30 laundering cycles.The observed achievements provide a broader understanding of stereochemical antimicrobial surfaces and endow this method with wider applications.Jiangqi Xu Zixu Xie Fanglin Du Xing Wang 2021Journal of Materials Science & Technology2021,,10:2
4AGAMOUS AND TERMINAL FLOWER controls floral organ identity and inflorescence development in Medicago truncatula显示文摘Angiosperms integrate a multitude of endogenous and environmental signals to control floral development,thereby ensuring reproductive success.Here,we report the identification of AGAMOUS AND TERMINAL FLOWER(AGTFL),a novel regulator of floral development in Medicago truncatula.Mutation of AGTFL led to the transformation of carpels and stamens into numerous sepals and petals and altered primary inflorescence identity.AGTFL encodes a nucleus-localized proteincontaining a putative Myb/SANT-like DNA-binding domain and a PKc kinase domain.Molecular and genetic analyses revealed that AGTFL regulates the transcription of MtAGs and MtTFL1 to control floral organ identity and inflorescence development.Butuo Zhu Hui Li Yifeng Hou Pengcheng Zhang Xiuzhi Xia Na Wang Hui Wang Kirankumar S.Mysore Jiangqi Wen Yanxi Pei Lifang Niu Hao Lin 2019Journal of Integrative Plant Biology2019,61,8:2
5An XPS study of thermaldegradation and flame retardant mechanism of polystyrene-claynanocomposites显示文摘Wang Jiangqi Du Jiaxin Zhu Jin 2002Polymer Degradation and Stability2002,77,24:1
6Studyondimerizationmechanismofacetyleneinhomogeneouscatalyticssystembymeansof3Hlabledacetylene[J]显示文摘MuRuicai(穆瑞才),DengGuocai(邓国才),JiangQi(江琦) 无机化学学报0,,:1
7Effect of Cuprous Oxide in Combination with Molybdenum Trioxide on Smoke Suppression in Rigid Poly(vinyl chloride) 显示文摘Bin Li Jiangqi Wang 2001Journal of Vinyl & Additive Technology2001,7,1:1
8BAK1, an Arabidopsis LRR Receptor-like Protein Kinase, Interacts with BRI1 and Modulates Brassinosteroid Signaling显示文摘Jia Li Jiangqi Wen Kevin A Lease Jason T Doke Frans E Tax John C Walker 2002Cell2002,,2:1
9Power Delivery Validation of Processor Front Side Bus显示文摘Mahadevan Suryakumar Jiangqi He 2005IEEE Electronic Components and Technology Conference2005,,5:1
10A Framework for An Automotive Body Assembly Process Design System 显示文摘Guanlong Chen Jiangqi Zhou Wayne Cai Xinmin Lai Zhongqin Lin Roland Menassa 2006Computer-Aided Design (S0010-4485)2006,38,:1
11A framework for an automotive body assembly process design system 显示文摘CHEN Guanlong ZHOU Jiangqi CAI W 2006Computer-Aided Design2006,38,5:1
12Aerogels from quaternary ammonium-functionalized cellulose nanofibers for rapid removal of Cr(VI) from water显示文摘Xu He Long Cheng Yaru Wang Jiangqi Zhao Wei Zhang Canhui Lu 2014Carbohydrate Polymers2014,,:1
13Protection of salicylic acid on membrane damage by water stress显示文摘Mingli Xu Xiaoyan Sun Jiangqi Wen 2000Plant Physiology Communications2000,36,1:1
14Phenomenological mo deling for FOPEN SAR:tree-trunk scattering on flat terrain and with concealed t argets显示文摘 Jiangqi He Norbert Geng Lawrence Carin 1999SPIE1999,3721,:1
15Extraction of cellulose nanofibrils from dry softwood pulp using high shear homogenization显示文摘Jiangqi Zhao Wei Zhang Xiaodan Zhang Xinxing Zhang Canhui Lu Yulin Deng 2013Carbohydrate Polymers2013,,2:1
16Biomass‑Derived Carbon Materials for High‑Performance Supercapacitors:Current Status and Perspective显示文摘Supercapacitors are electrochemical energy storage systems that depend on high-surface-area electrodes and can play a dominant role in areas that require high power delivery or uptake.And of various electrodes,biomass-derived carbonaceous electrodes have recently shown impressive promise in high-performance supercapacitors because of their widespread availability,renewable nature and low-cost electricity storage.Based on this,this review will discuss the current status of biomass-derived carbon materials in supercapacitors and highlight current research with a specific emphasis on the influences of structure and elemental doping on the electrochemical performance of corresponding carbon electrodes.This review will also discuss the gap between laboratory achievements and practical utilization in terms of these biomass-derived carbon materials and outline practical strategies for future improvement.Jiangqi Zhou Shilin Zhang Ya‑Nan Zhou Wei Tang Junhe Yang Chengxin Peng Zaiping Guo 2021Electrochemical Energy Reviews2021,4,2:1
17Effect of Zraddition on the microstructure and properties of Cu-lOCr in situcomposites显示文摘Deng Jiangqi Zhang Xiuqing Shang Shuzhen 2009Materials and Design2009,30,10:1
18Photoluminescence Properties and Energy Transfer from Ce^(3+) to Tb^(3+) in Zn_2SiO-_4 Host显示文摘Zn2Si O4︰Tb3+, Zn2 Si O4︰Ce3+, Zn2 Si O4︰Tb3+, Ce3+ phosphors were prepared by solidstate reaction at 1 150 ℃ for 2h under a weak reducing atmosphere. Moreover, the XRD patterns and photoluminescence spectra were recorded and the effects of Tb3+ and Ce3+ concentration on the luminescent properties of as-synthesized phosphors were investigated. The emission spectra under ultraviolet light(333 nm) radiation showed a dominant peak at 542 nm attributed to the 5D4→7F5 transition of Tb3+, which was enhanced significantly(about 45 times) by the co-doping of Ce3+, indicating that there occurred an efficient energy transfer from Ce3+ to Tb3+. According to the Dexter's energy transfer formula of multipolar interaction, it was demonstrated that the energy transfer between Ce3+ and Tb3+ was due to the electric dipolar-dipolar interaction of the resonance transfer.熊晓波 袁曦明 LIANG Yujun SONG Jiangqi WU Qi YIN Guoxiang 2015Journal of Wuhan University of Technology(Materials Science)2015,30,2:1
19A simple preconditioner for electric-field integral equations显示文摘XIE Yongjun HE Jiangqi SULIVAN A CARIN L 2001Microwave Opt Technol Lett2001,30,1:1
20Effects of Plant Community Type on Soil Methane Flux in Semiarid Loess Hilly Region,Central Gansu Province,China显示文摘Methane(CH_(4))is an important greenhouse gas second only to CO_(2)in terms of its greenhouse effect.Vegetation plays an important role in controlling soil CH_(4)fluxes,but the spatial variability of soil CH_(4)fluxes during vegetation restoration in Loess Hilly Region(LHR)is not fully understood.The effects of different plant community types[Medicago sativa grassland(MS);Xanthoceras sorbifolium forestland(XS);Caragana korshinskii bushland(CK);Hippophae rhamnoides shrubland(HR);and Stipa bungeana grassland(SB)]on soil CH_(4)flux in LHR were studied via the static chamber technique.The results showed that the five plant community types were sinks of soil CH_(4)in LHR,the plant community type significantly affected the soil CH_(4)flux,and the average CH_(4)uptake from high to low was in SB,HR,CK,MS,and XS.During the whole study period,the soil CH_(4)flux showed similar interannual variation.The maximum absorption of soil CH_(4)appeared in the growing season,while the minimum appeared in winter.Soil CH_(4)uptake was positively correlated with soil temperature and soil moisture.Soil temperature and moisture are important controlling factors for the temporal variability of soil CH_(4)flux.In LHR,the Stipa bungeana grassland is the more suitable plant community type for reducing soil CH_(4)emissions.In the process of vegetation restoration in LHR,the soil CH_(4)absorption potential of different plant community types should be considered,ecological benefits should be taken into account,and vegetation more suitable for mitigating the greenhouse effect should be selected.Chuanjie YANG Guang LI Lijuan YAN Weiwei MA Jiangqi WU Yan TAN Shuainan LIU Shikang ZHANG 2022Advances in Atmospheric Sciences2022,39,8:1
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