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| 1 | Using multi-matching system based on a simplified deformable model of the human iris for iris recognition显示文摘A new method for iris recognition using a multi-matching system based on a simplified deformable model of the human iris was proposed. The method defined iris feature points and formed the feature space based on a wavelet transform. In the matching stage it worked in a crude manner. Driven by a simplified deformable iris model, the crude matching was refined. By means of such multi-matching system, the task of iris recognition was accomplished. This process can preserve the elastic deformation between an input iris image and a template and improve precision for iris recognition. The experimental results indicate the va- lidity of this method. | MING Xing , XU Tao , WANG Zheng-xuan 1 2 3 1. College of Computer Science and Technology, Nanling Campus,Jilin University, 5988 Renmin Street,Changchun 130022, P. R. China 2. College of Mechanical Science and Engineering, Nanling Campus,Jilin University, 5988 Renmin Street, Changchun 130022, P. R. China 3. College of Computer Science and Technology, Qianwei Campus,Jilin University, 10 Qianwei Road, Changchun 130012, P. R. China. | 2004 | Journal of Bionic Engineering2004，1，3： | 2 |
| 2 | The effect of weak interlayer on the failure pattern of rock mass around tunnel – Scaled model tests and numerical analysis显示文摘 | Feng Huang Hehua Zhu Qianwei Xu Yongchang Cai Xiaoying Zhuang | 2012 | Tunnelling and Underground Space Technology incorporating Trenchless Technology Research2012，，： | 1 |
| 3 | Laboratory model tests and field investigations of EPB shield machine tunnelling in soft ground in Shanghai显示文摘 | Qianwei Xu Hehua Zhu Wenqi Ding Xiurun Ge | 2010 | Tunnelling and Underground Space Technology incorporating Trenchless Technology Research2010，，1： | 1 |
| 4 | A study on theoretical calculation method of subway safety evaeuation显示文摘 | Zhang Bing Xu Zhisheng Zhao Qianwei | 2014 | Procedia Engi neering2014，71，： | 1 |
| 5 | The Effect of Weal Interlayer on the Failure Pattern of Rock Pattern of Rock Mass Around Tunnel 显示文摘 | Huang Feng Zhu Hehua Xu Qianwei | 2013 | Tunnelling and Underground Space Technology2013，35，： | 1 |
| 6 | A Case History of Shield Tunnel Crossing through Group Pile Foundation of a Road Bridge with Pile Underpinning Technologies in Shanghai 显示文摘 | XU Qianwei ZHU Hehua MA Xianfeng | 2015 | Tunnelling and Underground Space Technology2015，，45： | 1 |
| 7 | Experimental study on the progressive failure and its anchoring effect of weak-broken rock vertical slope显示文摘To improve the understanding on the failure behavior and its anchoring effect of weak-broken rock slope,the rock of grade IV according to China is taken as reference prototype,and a series of model tests were carried out in laboratory.These tests can be divided into two categories,that is,with bolt reinforcement and without bolt reinforcement.In which,the stability of slope reinforced with different bolt diameter,different anchor length and different space are studied.The test results show that the collapse of slope is the combination of tension failure at the top and the compression-shearing failure at the bottom of the slope,and its failure process presents progressive characteristics.The contributions of bolt reinforcement are mainly reflected by the aspects of shear resistance,crack resistance and anti-extension.The reinforcement of blot not only can improve the vertical bearing capacity before failure,but also can reduce the vertical settlement and allow greater lateral rock wall deformation;what is more,the stress concentration degree in rock mass can be dispersed,which do help to improve the stability of slope rock mass. | Hehua ZHU Qianwei XU Wenqi DING Feng HUANG | 2011 | Frontiers of Structural and Civil Engineering2011，5，2： | 1 |
| 8 | A study on theoretical calculation method of subway safety evacuation显示文摘 | ZHANG Bing XU Zhisheng ZHAO Qianwei | 2014 | Procedia Engineering2014，71，： | 1 |
| 9 | Experimental study on working parameters of earth pressure balance shield machine tunneling in sot~ ground 显示文摘 | ZHU Hehua XU Qianwei ZHENG Qizhen | 2008 | Frontiers of Architecture and Civil Engineering in China2008，2，4： | 1 |
| 10 | Experimental study on working parameters of earth pressure balance shield machine tunneling in soft ground 显示文摘 | XU Qianwei ZHENG Qizhen | 2008 | Frontiers of Architecture and Civil Engineering in China2008，2，4： | 1 |
| 11 | Laboratory model tests and field investigations of EPB shield machine tunnelling in soft ground in Shanghai 显示文摘 | XU Qianwei ZHU Hehua DING Wenqi | 2011 | Tunnelling and Underground Space Technology2011，26，2： | 1 |
| 12 | Point-cloud segmentation of individual trees in complex natural forest scenes based on a trunk-growth method显示文摘Forest resource management and ecological assessment have been recently supported by emerging technologies.Terrestrial laser scanning(TLS)is one that can be quickly and accurately used to obtain three-dimensional forest information,and create good representations of forest vertical structure.TLS data can be exploited for highly significant tasks,particularly the segmentation and information extraction for individual trees.However,the existing single-tree segmentation methods suffer from low segmentation accuracy and poor robustness,and hence do not lead to satisfactory results for natural forests in complex environments.In this paper,we propose a trunk-growth(TG)method for single-tree point-cloud segmentation,and apply this method to the natural forest scenes of Shangri-La City in Northwest Yunnan,China.First,the point normal vector and its Z-axis component are used as trunk-growth constraints.Then,the points surrounding the trunk are searched to account for regrowth.Finally,the nearest distributed branch and leaf points are used to complete the individual tree segmentation.The results show that the TG method can effectively segment individual trees with an average F-score of 0.96.The proposed method applies to many types of trees with various growth shapes,and can effectively identify shrubs and herbs in complex scenes of natural forests.The promising outcomes of the TG method demonstrate the key advantages of combining plant morphology theory and LiDAR technology for advancing and optimizing forestry systems. | Qianwei Liu Weifeng Ma Jianpeng Zhang Yicheng Liu Dongfan Xu Jinliang Wang | 2021 | Journal of Forestry Research2021，32，6： | 1 |
| 13 | Experimental study on working parameters of earth pessure balance shield machine tunneling in soft ground 显示文摘 | Zhu Hehua Liao Shaoming Xu Qianwei | 2008 | Frontiers of Architecture and Civil Engineering in China2008，2，4： | 1 |
| 14 | Laboratory model tests and field investigations of EPB shield machine tunneling in soft ground in Shanghai显示文摘 | Xu Qianwei Zhu Hehua Ding Wenqi | 2011 | Tunneling and Underground Space Technology2011，26，1： | 1 |
| 15 | BCAT1 promotes lung adenocarcinoma progression through enhanced mitochondrial function and NF-κB pathway activation显示文摘Lung cancer is one of the most prevalent and malignant cancers,among which lung adenocarcinoma(LUAD)accounts for the majority and remains a major cause of cancer-related mortality worldwide(Cui et al.,2019).Despite the growing intensity of research on the pathobiology and progression of lung cancer and the fact that many genes have been identified as potential drivers and targets for therapy(Luo et al.,2019;Zhang et al.,2019),the treatment and prognosis of lung cancer patients have hardly improved.Therefore,this study aimed to investigate the precise mechanism of lung cancer development and explore efficient diagnostic and therapeutic methods for clinical treatment. | Mengdan YU Qianwei ZHAO Jinxia LI Fang XU Zhibiao ZHANG Yixian LIU Liping DAI Bingxia ZHANG Jianying ZHANG Jintao ZHANG | 2022 | Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2022，23，9： | 0 |
| 16 | 我们对美好生活更加充满信心 习近平总书记春节前夕赴四川看望慰问各族干部群众回访记(英文)显示文摘President Xi Jinping, generalsecretary of the Communist Party CentralCommittee and chairman of the CentralMilitary Commission, paid a visit to localofficials and people in Sichuan Province.From the towering Daliang Mountains tothe green Yingxiu Town, from workshopsto village gates, Xi expressed the greatestconcern for cadres and people of all ethnicgroups, bringing them the warmth offamily and encouraging them to be moreconfident in our beautiful life. | Jiang Zuoping Jiang Yi Xiao Lin Yang Di Ye Hanyong Li Qianwei Xu Ru | 2018 | China's Ethnic Groups2018，16，3： | 0 |
| 17 | In-situ coupling construction of interface bridge to enhance electrochemical stability of all solid-state lithium metal batteries显示文摘Polymer-based composite electrolytes composed of three-dimensional Li_(6.4)La_(3)Zr_(2)Al_(0.2)O_(12)(3D-LLZAO)have attracted increasing attention due to their continuous ion conduction and satisfactory mechanical properties.However,the organic/inorganic interface is incompatible,resulting in slow lithium-ion transport at the interface.Therefore,the compatibility of organic/inorganic interface is an urgent problem to be solved.Inspired by the concept of“gecko eaves”,polymer-based composite solid electrolytes with dense interface structures were designed.The bridging of organic/inorganic interfaces was established by introducing silane coupling agent(3-chloropropyl)trimethoxysilane(CTMS)into the PEO-3D-LLZAO(PL)electrolyte.The in-situ coupling reaction improves the interface affinity,strengthens the organic/inorganic interaction,reduces the interface resistance,and thus achieves an efficient interface ion transport network.The prepared PEO-3D-LLZAO-CTMS(PLC)electrolyte exhibits enhanced ionic conductivity of 6.04×10^(-4)S cm^(-1)and high ion migration number(0.61)at 60℃and broadens the electrochemical window(5.1 V).At the same time,the PLC electrolyte has good thermal stability and high mechanical properties.Moreover,the Li Fe PO_(4)|PLC|Li battery has excellent rate performance and cycling stability with a capacity decay rate of 2.2%after 100 cycles at 60℃and 0.1 C.These advantages of PLC membranes indicate that this design approach is indeed practical,and the in-situ coupling method provides a new approach to address interface compatibility issues. | Qianwei Zhang Rong Yang Chao Li Lei Mao Bohai Wang Meng Luo Yinglin Yan Yiming Zou Lisheng Zhong Yunhua Xu | 2024 | Journal of Energy Chemistry2024，89，2： | 0 |
| 18 | Effect of Cl doping amount on the microstructure,photovoltaic properties and ferroelectric properties of Bi-based lead-free perovskite显示文摘Organic-inorganic hybrid perovskites with 3D perovskite structure have gained much attention as light harvesting materials in thinfilm photovoltaics.This is because of their outstanding light-absorption characteristics,charge-transport dynamics and their simple processability using lab-scale solution and vapor phase deposition techniques.However,the inherent instability and lead toxicity of lead-based PSCs are the major problems at present.Recent studies have shown that the(CH_(3)NH_(3)T_(3)Bi_(2)I_(9)(MBI)0D bismuth-based compound can be used as an optical absorption layer in solar cells.In this paper,the(CH_(3)NH_(3)T_(3)Bi_(2)I_(9)was doped with Cland a series of(CH_(3)NH_(3)T_(3)Bi_(2)I_(9-x)Cl_(x)films were prepared.The effects of different doping amounts on the microstructure,photovoltaic properties and ferroelectric properties were systematically investigated.Scanning electron microscope(SEM)and Atomic force microscope(AFM)analysis showed that with the increase of doping content,the density of the films increased and the roughness decreased.The photoelectric conversion efficiency of(CH_(3)NH_(3)T_(3)Bi_(2)I_(9-x)Cl_(x)raises with the increase of doping content.For example,the photoelectric conversion efficiency of(C_(H)3NH_(3)T_(3)Bi_(2)I_(3)Cl_(6)is 0.473%.We find that the leakage current descends into the increase in doping content,which may be due to the increase in the film density and the decrease of porosity.These research results have a positive effect on the development of Bi-based lead-free perovskite. | Shilong Zhang Ruicheng Xu Zhendong Li Qianwei Zhang Li Cheng Zhenhua Wang Chunlin Fu | 2019 | Journal of Advanced Dielectrics2019，9，2： | 0 |
| 19 | Structure of the SNAPc-bound RNA polymerase III preinitiation complex显示文摘Dear Editor,Eukaryotic RNA polymerase Ill(Pol ll)is required for transcribing a large amount of short non-coding RNAs,including tRNAs,5S rRNA,and U6 snRNA.i These products play essential roles in a large variety of cellular processes,such as translation,RNA processing,and transcription regulations.Different types of Pol ill-specific genes are recognized by different multi-subunit transcription factors during the early stage of the transcription initiation,and Pol Il is subsequently recruited to assemble the preinitiation complex(PIC). | Haifeng Hou Qianwei Jin Yulei Ren Zhenguo Chen Qianmin Wang Yanhui Xu | 2023 | Cell Research2023，33，7： | 0 |
| 20 | Structural basis of INTAC-regulated transcription显示文摘DearEditor,Eukaryotic transcription by RNA polymerase I(Pol I)is a strictly regulated process that involves the interplay of numerous factors.Promoter-proximal pausing is a regulatory mechanism that connects transcription initiation and productive elongation in metazoans(Core and Adelman,2019).Pol II forms a paused elongation complex(PEC)through binding of two transcriptional regulation factors DSIF and NELF(Vos et al.,2018).Following the duration of pausing,Pol II either proceeds into productive elongation or undergoes promoter-proximal premature transcription termination(PTT)(Kamieniarz-Gdula and Proudfoot,2019),which plays a decisive role in determining transcriptional outputs. | Hai Zheng Qianwei Jin Xinxin Wang Yilun Qi Weida Liu Yulei Ren Dan Zhao Fei Xavier Chen Jingdong Cheng Xizi Chen Yanhui Xu | 2023 | Protein & Cell2023，14，9： | 0 |
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