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| 1 | The structure of L*-inverse semigroups显示文摘[1]Hall T E.Orthodox semigroups.Pacific J Math,1971,39:677-686[2]Howie J M.An Introduction to Semigroup Theory.Now York:Academic Press,1976[3]Fountain J B.Abundant semigroups.Proc Lond Math Soc,1982,44 (3):103-129[4]El-Qallali A,Fountain J B.Idempotent-connected abundant semigroups.Proc Roy Soc Edinburgh,1981,Sec.A:79-90[5]El-Qallali A,Fountain J B.Quasi-adequate semigroups.Proc Roy Soc Edinburgh,1981,Sec.A:91-99[6]Fountain J B.Adequate semigroups.Proc Edinburgh Math Soc,1979,22:113-125[7]Guo X J.Abundant C-lpp proper semigroups.Southeast Asian Bull Math,2000,24 (1):41-50[8]Guo X J,Shum K P,Guo Y Q.Perfect rpp semigroups.Communications in Algebra,2001,29(6):2447-2459[9]Ren X M,Shum K P.Structure theorems for right pp-semigroups with left central idempotents.Discussions Math General Algebra and Applications,2000,20:63-75[10]Ren X M,Shum K P.The structure of superabundant semigroups.Sci China Ser A-Math,2004,47(5):756-771[11]Shum K P,Ren X M.Abundant semigroups with left central idempotents.Pure Math Appl,1999,10(1):109-113[12]Armstrong S.The structure of type A semigroups.Semigroup Forum,1984,29:319-336[13]Lawson M V.The structure of type A semigroups.Quart J Math Oxford,1986,37(2):279-298[14]Bailes G L.Right inverse semigroups.J Algebra,1973,26:492-507[15]Venkatesan P S.Right (left) inverse semigroups.J Algebra,1974,31:209-217[16]Yamada M.Orthodox semigroups whose idempotents satisfy a certain identity.Semigroup Forum,1973,6:113-128[17]Preston G B.Semiproducts of semigroups.Proc Roy Soc Edinburgh,1986,102A:91-102[18]Preston G B:Products of semigroups.In:Shum K P,Yuen P C,eds.Proc.of the conference'Ordered structures and algebra of computer languages',1991 (Hong Kong).Singapore:World Scientific Inc,1993.161-169[19]Lawson M V.The natural partial order on an abundant semigroup.Proc Edinburgh Math Soc,1987,30:169-186[20]El-Qallali A.(L)*-unipotent semigroups.J Pure and Applied Algebra,1989。 | REN Xueming & SHUM Karping Department of Mathematics, Xi’an University of Architecture and Technology, Xi’an 710055, China Faculty of Science, The Chinese University of Hong Kong, Hong Kong, China | 2006 | Science China Mathematics2006,49,8: | 4 |
| 2 | CHANGES IN MONSOON AND TROPICAL CYCLONE EXTREME PRECIPITATION IN SOUTHEAST CHINA FROM 1960 TO 2012显示文摘Using daily precipitation data from 110 stations in Southeast China from 1960 to 2012,the extreme precipitation(EP)events associated with monsoon and tropical cyclones were examined using the Objective Synoptic Analysis Technique.In Southeast China,the extreme precipitation associated with tropical cyclones(TEP),which mainly occur in the summer(July–September),accounted for 27.9%of the total extreme precipitation amount,with 40–50%in the coastal regions.While the regional mean TEP amount showed an inconspicuous trend,total EP and monsoon EP(MEP)both showed an increasing trend,with the MEP trend being statistically significant.Although there was little change in the frequency of tropical cyclones affecting Southeast China,the TEP contribution to frequency increased with increasing EP threshold and the frequency of TEP with daily precipitation of more than 300 mm showed an increasing trend in the background of global climate change.The upward trend in the highest-threshold TEP events presents a challenge for mitigation of the damage associated with tropical cyclones. | ZHIZ HONG SU FUMIN REN JIN WEI XIAOHONG LIN SHUNJI SHI XUEMING ZHOU | 2015 | Tropical Cyclone Research and Review2015,4,1: | 3 |
| 3 | Boosted photoreduction of diluted CO_(2) through oxygen vacancy engineering in NiO nanoplatelets显示文摘Converting carbon dioxide(CO_(2))to diverse value-added products through photocatalysis can validly alleviate the critical issues of greenhouse effect and energy shortages simultaneously.In particular,based on practical considerations,exploring novel catalysts to achieve efficient photoreduction of diluted CO_(2) is necessary and urgent.However,this process is extremely challenging owing to the disturbance of competitive adsorption at low CO_(2) concentration.Herein,we delicately synthesize oxygen vacancy-laden NiO nanoplatelets(r-NiO)via calcination under Ar protection to reduce diluted CO_(2) through visible light irradiation(>400 nm)assisted by a Ru-based photosensitizer.Benefitting from the strongly CO_(2) adsorption energy of oxygen vacancies,which was confirmed by density functional calculations,the r-NiO catalysts exhibit higher activity and selectivity(6.28×10^(3)µmol·h^(−1)·g^(−1);82.11%)for diluted CO_(2)-to-CO conversion than that of the normal NiO(3.94×10^(3)µmol·h^(−1)·g^(−1);65.26%).Besides,the presence of oxygen vacancies can also promote the separation of electron-hole pairs.Our research demonstrates that oxygen vacancies could act as promising candidates for photocatalytic CO_(2) reduction,offering fundamental guidance for the actual photoreduction of diluted CO_(2) in the future. | Weiyi Chen Xueming Liu Bin Han Shujie Liang Hong Deng Zhang Lin | 2021 | Nano Research2021,14,3: | 2 |
| 4 | A Novel Approach for Crowd Video Monitoring of Subway Platforms 显示文摘 | HU Xueming ZHEN Hong WNAG Wenwei | 2013 | Optik International Journal for Light and Electron Optics2013,46,11: | 1 |
| 5 | An image clearness method for fog显示文摘 | Zhu Pei Zhu Hong Qian Xueming | 2004 | Journal of hnage and Graphics2004,9,1: | 1 |
| 6 | Electro-enzyme coupling systems for selective reduction of CO_(2)显示文摘To address the energy crisis and alleviate the rising level of CO_(2)in the atmosphere,various CO_(2)capture and utilization(CCU)technologies have been developed.The use of electro-enzyme coupling systems is a promising strategy for the sustainable production of fuels,chemicals and materials using CO_(2)as the feedstock.In this review,the recent progresses in the development of electro-enzyme coupling systems for the selective reduction of CO_(2)are systematically summarized.We first provide a brief background about the significance and challenges in the direct conversion of CO_(2)into value-added chemicals.Next,we describe the materials and strategies in the design of electrodes,as well as the common enzymes used in the electro-enzyme coupling systems.Then,we focus on the state-of-the-art routes for the electro-enzyme coupling conversion of CO_(2)into a variety of compounds(formate,CO,methanol,C≥2chemicals)by a single enzyme or multienzyme systems.The emerging approaches and materials used for the construction of electro-enzyme coupling systems to enhance the electron transfer efficiency and the catalytic activity/stability are highlighted.The main challenges and perspectives in the integration of enzymatic and electrochemical strategies are also discussed. | Yuman Guo Xueming Hong Ziman Chen Yongqin Lv | 2023 | Journal of Energy Chemistry2023,,5: | 1 |
| 7 | Merkle Tree Digital Signature and Trusted Computing Platform显示文摘在起始的关键产生过程的效率的缺乏是有很多可能的签名的 Merkle 树签名计划的一个严肃的缺点。基于二种 Merkle 树,一个新树类型签名计划被构造,并且它是 provablyexistentially,在适应选择消息下面的 unforgeable 攻击。由分散在签名过程以内的原来的计划的起始的关键产生过程,有 6.87 X 10 ~(10 ) 的一棵大 Merkle 树可能的签名能在 590 毫秒被初始化。在硬盘和存储器存储一些小 Merkletrees 能加快 Merkle 树签名计划。Mekle 树签名计划为在大多数情形计算站台信任是合适的。 | WANG Xiaofei HONG Fan TANG Xueming CUI Guohua | 2006 | Wuhan University Journal of Natural Sciences2006,11,6: | 1 |
| 8 | RGD-Tachyplesin inhibits tumor growth显示文摘 | Chen Yixin Xu Xueming Hong Shuigen | | 0,,: | 1 |
| 9 | Microbial conversion of glycerol to 1,3 -propanediol by an engineered strain of Escherichia coli 显示文摘 | Xueming Tang Yongsong Tan Hong Zhu | 2009 | Applied and Environmental Microbiology2009,75,6: | 1 |
| 10 | DOWNWARD LOOKING SPARSE LINEAR ARRAY 3D SAR IMAGING ALGORITHM BASED ON BACK-PROJECTION AND CONVEX OPTIMIZATION显示文摘Downward Looking Sparse Linear Array Three Dimensional SAR(DLSLA 3D SAR) is an important form of 3D SAR imaging, which has a widespread application field. Since its practical equivalent phase centers are usually distributed sparsely and nonuniformly, traditional 3D SAR algorithms suffer from low resolution and high sidelobes in cross-track dimension. To deal with this problem, this paper introduces a method based on back-projection and convex optimization to achieve 3D high accuracy imaging reconstruction. Compared with traditional SAR algorithms, the proposed method sufficiently utilizes the sparsity of the 3D SAR imaging scene and can achieve lower sidelobes and higher resolution in cross-track dimension. In the simulated experiments, the reconstructed results of both simple and complex imaging scene verify that the proposed method outperforms 3D back-projection algorithm and shows satisfying cross-track dimensional resolution and good robustness to noise. | Bao Qian Peng Xueming Wang Yanping Tan Weixian Hong Wen | 2014 | Journal of Electronics(China)2014,31,4: | 1 |
| 11 | Polar format imaging algorithm with wave-front curvature phase error compensation for airborne DLSLA three-dimensional SAR 显示文摘 | PENG Xueming HONG Wen WANG Yanping | 2014 | IEEE Geoscience and Remote Sensing Letters2014,11,6: | 1 |
| 12 | Analysis on background magnetic field to generate eddy current by pulsed gradient of permanent-magnet MRI显示文摘In this paper the analytical expressions for the magnetic field H and induction B in iron-pole plates generated by MRI gradient coil are given using line-current and the multilayer dielectric plate model with the mirror-image method.Eddy current emanates from the magnetic flux in the iron-pole plates.In order to fully suppress the eddy current,this magnetic flux should be fully eliminated.The research results indicate the magnetic permeability of the resist-eddy plate must be bigger than that of magnetic pole material,i.e.pure iron,and that the resist-eddy plate should be thick enough to be far away from its magnetic saturation. | ZU DongLin,HONG LiMing,CAO XueMing & TANG Xin Institute of Heavy Ion Physics,Beijing City Key Laboratory of Medical Physics and Engineering,School of Physics,Peking University,Beijing 100871,China | 2010 | Science China(Technological Sciences)2010,53,4: | 0 |
| 13 | Construction of Agricultural Circular Economy and Standard System in China显示文摘在在世界上倡导圆形的经济和低碳的经济的发展的新状况下面,农业正在面对所有挑战保证食物安全,处理气候变化,支持精力保存和污染减小,保护资源和环境,并且增加 farmers.Moreover 的收入,开发圆形的农业在国际挑战能被处理,在中国的农业的发展能是 accelerated.This pape | Hong Denghua,Zhang Shisheng,Zheng Yuyan,Tao Xueming Yu Xiaoying Engineer,Anhui Institute of Standardization Engineer, Deputy Director of Standards Research Center,Anhui Institute of Standardization, Engineer,Anhui Institute of Standardization, Engineer,Anhui Institute of Standardization, Engineer,Anhui Institute of Standardization, | 2010 | China Standardization2010,55,5: | 0 |
| 14 | Lattice-strained nanotubes facilitate efficient natural sunlight-driven CO_(2) photoreduction显示文摘Photocatalytic reduction of CO_(2) holds tremendous promise for alleviating the energy crisis.Despite the progress that has been,made,there are still some challenges to overcome,such as the realization under real sunlight rather than the simulation condition.In this work,ultrathin Ni_(2)(OH)(PO_(4))nanotubes(NTs)prepared through hydrothermal route are applied as a novel catalyst for photocatalytic reduction of CO_(2) under real sunlight.The prepared Ni_(2)(OH)(PO_(4))NTs exhibit a 11.3 μmol·h^(-1) CO production rate with,96.1% CO selectivity.Interestingly,Ni_(2)(OH)(PO_(4))NTs have a positive impact on the facilitation of photoreduction in diluted CO_(2).Notably,when the system is performed under real sunlight,Ni_(2)(OH)(PO_(4))NTs afford an accumulated CO of ca.26.8 nmol with,96.9% CO selectivity,exceeding most previous inorganic catalysts under simulated irradiation in the laboratory.Our experimental results demonstrate that the multisynergetic effects induced by surface-OH and the lattice strain serve as highly active sites for CO_(2) molecular adsorption and activation as well as electron transfer,hence enhancing photoreduction activity.Therefore,this work provides experimental basis that CO_(2) photocatalysis can be put into practical use. | Shujie Liang Xueming Liu Zuqi Zhong Bin Han Xiaohui Zhong Weiyi Chen Kainan Song Hong Deng Zhang Lin | 2021 | Nano Research2021,14,8: | 0 |
| 15 | DLSLA 3-D SAR imaging algorithm for off-grid targets based on pseudo-polar formatting and atomic norm minimization显示文摘This paper concerns the imaging problem for downward looking sparse linear array three-dimensional synthetic aperture radar(DLSLA 3-D SAR) under the circumstance of sparse and non-uniform cross-track dimensional virtual phase centers configuration. Since the 3-D imaging scene behaves typical sparsity in a certain domain, sparse recovery approaches hold the potential to achieve a better reconstruction performance. However,most of the existing compressive sensing(CS) algorithms assume the scatterers located on the pre-discretized grids, which is often violated by the off-grid effect. By contrast, atomic norm minimization(ANM) deals with sparse recovery problem directly on continuous space instead of discrete grids. This paper firstly analyzes the off-grid effect in DLSLA 3-D SAR sparse image reconstruction, and then introduces an imaging method applied to off-gird targets reconstruction which combines 3-D pseudo-polar formatting algorithm(pseudo-PFA) with ANM. With the proposed method, wave propagation and along-track image reconstruction are operated with pseudo-PFA, then the cross-track reconstruction is implemented with semidefinite programming(SDP) based on the ANM model. The proposed method holds the advantage of avoiding the off-grid effect and managing to locate the off-grid targets to accurate locations in different imaging scenes. The performance of the proposed method is verified and evaluated by the 3-D image reconstruction of different scenes, i.e., point targets and distributed scene. | Qian BAO Kuoye HAN Xueming PENG Wen HONG Bingchen ZHANG Weixian TAN | 2016 | Science China(Information Sciences)2016,59,6: | 0 |
| 16 | New Public Key Cryptosystems from Combinatorial Group Theory显示文摘External direct product of some low layer groups such as braid groups and general Artin groups, with a kind of special group action on it, provides a secure cryptographic computation platform, which can keep secure in the quantum computing epoch. Three hard problems on this new platform, Subgroup Root Problem, Multi-variant Subgroup Root Problem and Subgroup Action Problem are presented and well analyzed, which all have no relations with conjugacy. New secure public key encryption system and key agreement protocol are designed based on these hard problems. The new cryptosystems can be implemented in a general group environment other than in braid or Artin groups. | TANG Xueming WANG Xiaofei HONG Fan CUI Guohua | 2006 | Wuhan University Journal of Natural Sciences2006,11,5: | 0 |