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| 1 | Growth and optical properties of ytterbium and rare earth ions codoped CaF2-SrF2 eutectic solid-solution(RE=Y^(3+),Gd^(3+),La^(3+))显示文摘Ytterbium and rare earth ions(RE=Y,Gd,La)codoped CaF_(2)-SrF_(2)single crystals(3 at%Yb,6 at%RE:CaF_(2)-SrF_(2))were fabricated by temperature gradient technology(TGT).All the space groups remain the same Fm3m as that of Yb:CaF_(2)-SrF_(2).The lattice parameter a,unit cell volume V,as well as bond length of Ca/Sr-F and F-F increase in the sequence of rare-earth ions radius Y^(3+) | Binbin Jiang Lihe Zheng Dapeng Jiang Handi Yin Jiangang Zheng Qiuhong Yang Guofeng Cheng Liangbi Su | 2021 | Journal of Rare Earths2021，39，4： | 2 |
| 2 | Proposed methodology for online frequency response analysis based on magnetic coupling to detect winding deformations in transformers显示文摘Frequency response analysis is widely used as a method for the offline diagnosis of winding deformations in power transformers.To apply it to a working transformer,people need to determine how to inject the excitation signal and measure the response signal for windings that bear a rated voltage and current.In this study,a method to obtain the frequency response curve online is proposed.It uses the principle of magnetic field coupling to inject a frequency sweep signal into the windings through a Rogowski coil.Another Rogowski coil sensor placed at the root of a high-voltage bushing is used to measure the response current signal.Experiments on a 72.5 kV bushing show that metal accessories of the bushing have no influence on the injection or the measurement.The feasibility of this method was verified by experiments on charged 110/35/10 kV transformers at a factory and a working 35 kV transformer in a power station.The results show that it is safe to install the Rogowski coil at the root of the high-voltage bushing.The excitation signal can be injected into live windings and the response signal is measurable.Strong electromagnetic power frequency noise can be reduced and the frequency response curve can be measured online. | Yangchun Cheng Jiangang Bi Wenzhi Chang Yuan Xu Xiaohua Pan Xianwei Ma Shuai Chang | 2020 | High Voltage2020，5，3： | 2 |
| 3 | The positive solutions of boundary value problems for a class of one-dimensional p-Laplacians显示文摘 | CHENG JIANGANG SHAO YANFANG | 2008 | Nonlinear Analysis:Theory Methods and Applications2008，68，： | 1 |
| 4 | Fingerprint enhancement with dyadic scale-space显示文摘 | Cheng Jiangang Tian Jie | 2004 | Pattern Recognition2004，25，11： | 1 |
| 5 | FFS Contact Searching Algorithm for Dynamic Finite Element Analysis显示文摘 | WANG Fujun CHENG Jiangang YAO Zhenhan | 2001 | International Journal for Numerical Methods in Engineering2001，50，： | 1 |
| 6 | Existence and optimal estimates of solutions for singular nonlinear Dirichlet problems 显示文摘 | ZHANG Zhijun Cheng Jiangang | 2004 | Nonlinear Anal2004，57，： | 1 |
| 7 | Segmentation of fingerprint images using linear elassifier显示文摘 | Chen Xinjian Tian Jie Cheng Jiangang | 2004 | EURASIP Journal on Applied Signal Processing2004，，4： | 1 |
| 8 | Uniqueness of positive radial solutions for Dirichlet problems on annular domains 显示文摘 | Cheng jiangang Guang Luo | 2008 | Math Anal-Ap2008，338，： | 1 |
| 9 | Wetting mechanism transfer process of hydrophobic membrane gas absorbtion 显示文摘 | Lu Jiangang Zheng Youfei Cheng Mindong | 2008 | J Membr Sci2008，308，： | 1 |
| 10 | Fingerprint enhancement withdyadicscale-space显示文摘 | Jiangang Cheng Jie Tian | 2004 | Pattern Recognition Letters2004，，25： | 1 |
| 11 | Uniqueness results for the one-dimensional p-Laplaeian 显示文摘 | Cheng Jiangang | 2005 | J Math Anal Appl2005，311，： | 1 |
| 12 | Wetting mechanism in mass transfer process of hydrophobic membrane gas absorption显示文摘 | Lu Jiangang Zheng Youfei Cheng Mindong | 2008 | Journal of Membrane Science2008，，308： | 1 |
| 13 | Effects of activators on mass transfer enhancement in a hol- low fiber contactor using activated alkanolamine solutions 显示文摘 | LU Jiangang ZHENG Youfei CHENG Mindong | 2007 | J Membr Sci2007，289，1： | 1 |
| 14 | Segmentation of Fingerprint Images Using Linear Classifier显示文摘 | Chen Xinjian Tian Jie Cheng Jiangang | 2004 | Journal on Applied Signal Processing2004，，4： | 1 |
| 15 | Wetting mechanism transfer process of hydrophobic membrane gas absorbtion 显示文摘 | Lu Jiangang Zheng Youfei Cheng Mindong | 2008 | J Membr Sci2008，308，： | 1 |
| 16 | Segmentationof fingerprint images using linear classifier显示文摘 | Chen Xinjian Tian Jie Cheng Jiangang | 2004 | EURASIPJournal on Applied Signal Processing2004，2004，4： | 1 |
| 17 | Broadband antenna employing Simplified MTLs forWLAN/ WiMAX applications 显示文摘 | ZHOU Cheng WANG Guangming LIANG Jiangang etal | 2014 | IEEE Antennas andWireless Propagation Letters2014，13，6： | 1 |
| 18 | A Novel Chinese Polar Knowledge Repository Based on Polar Data-Sharing Ontology显示文摘In order to archive and utilize the information from Chinese polar expeditions to the greatest extent, we design a novel knowledge repository, in which an automatic query model based on neural networks is proposed and a data call trigger is established to keep data consistent between polar data-sharing platforms. And in this repository, anybody can make contributions to the repository by creating or updating entries with version control and an authority control mechanism. In this paper, the data sources,data processes and network structure of this repository are described, and the keywords extraction and decision support operation are detailed. The analysis of this design's feasibility and applicability indicates that this knowledge repository is open, sole and authoritative for Chinese polar expeditions. | CHENG Wenfang ZHANG Xia ZHU Jiangang | 2016 | Wuhan University Journal of Natural Sciences2016，21，4： | 1 |
| 19 | On the existence of positive solutions for a class of singular boundary value problems显示文摘 | Cheng Jiangang Zhang Zhijun | 2001 | Nonlinear Analysis2001，44，： | 1 |
| 20 | Fingerprint enhancement with dyadicscale-space显示文摘 | Jiangang Cheng Jie Tian | 2004 | Pattern Recognition Letters2004，25，： | 1 |
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