|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Growth and feeding habits of invasive Pseudorasbora parva in the Chabalang Wetland(Lhasa,China) and its trophic impacts on native fish显示文摘In recent years, fish invasion has become one of the main reasons for the decline of native fish stocks. Pseudorasbora parva is considered one of the major invasive species worldwide. The present study investigated the fish resources of the Chabalang Wetland (Lhasa, Tibet) during diff erent seasons in 2009 and 2013. Four hundred and twelve individuals were subsampled to estimate age, growth, and feeding habit of P . parva . Furthermore, food relationships between P . parva and the native Schizothoracinae fish were also examined. The results revealed a significant shift in species composition and community structure characterized by the disappearance of native fish and outbreak of non-native fish. The percentage of nonnative P . parva in the fish collections significantly increased from 33.64% in 2009 to 64.08% in 2013. The standard length (SL) ranged from 22.00 to 78.71 mm, and their age was 1–5 a. The von Bertalanff y function was used to model the observed length-at-age data as L t =112.19(1–e^-0.1495 ( t +0.8012)) for females and as L t =123.12 (1–e^-0.1500 ( t +0.7132)) for males. The results indicated that P . parva in Tibet has lower growth and mortality rates compared with that from the native ranges. Ninety-seven prey taxa belonging to 9 prey categories were identified in the gut of 38 P . parva . P . parva can be considered a generalized and opportunistic predator, competing with the native fish, especially Schizothorax o’connori , Schizopygopsis younghusbandi younghusbandi , and Ptychobarbus dipogon , for Bacillariophyta and Chironomid larvae. This is an important reason for the decline in native fish population. | DING Huiping GU Xiaohong ZHANG Zhiming HUO Bin LI Dapeng XIE Congxin | 2019 | Journal of Oceanology and Limnology2019，37，2： | 2 |
| 2 | Anchoring Single Nickel Atoms on Carbon-vacant Carbon Nitride Nanosheets for Efficient Photocatalytic Hydrogen Evolution显示文摘Polymeric carbon nitride(PCN)has emerged as a promising candidate for photocatalytic hydrogen evolution,but its dependence on scarce and high-cost noble metal co-catalysts severely limits its extensive application.It will be of great promise to develop non-noble metal single-atom co-catalysts with low-cost and high atom utilization to improve the photocatalytic performance over PCN.Herein,single Ni atoms are successfully anchored onto carbon-vacant PCN nanosheets(CCN-SANi)via a two-step ammonia thermal treatment and photo-deposition process.Theoretical calculations and experimental results demonstrate that the optical absorption property and the charge transfer ability of CCN-SANi have been significantly improved with the introduction of single Ni atoms to form Ni-N3 sites.In comparison to carbon-vacant PCN(CCN)loaded with Ni clusters,the obtained CCN-SANi exhibits 11.4 times increased photocatalytic performance,with the highest hydrogen evolution rate reaching 511μmol/(g·h),which is even 1.7 times higher than that of CCN loaded with Pt clusters.This research proposes an inspiring and reliable strategy to design novel single-atom semiconducting polymers with electronic structures manipulated for efficient photocatalysis. | LIN Zhi ZHANG Zhengqi WANG Yiqing PENG Zhiming WANG Xinxin WANG Ruizhe HUANG Yu-Cheng MENG Fanqi LI Mingtao DONG Chung-Li ZHANG Qinghua GU Lin SHEN Shaohua | 2022 | Chemical Research in Chinese Universities2022，38，5： | 1 |
| 3 | The Process of Information Systems Architecture Development显示文摘 | Zhang Xuemin Sun Zhiming Gu Ping | 2012 | Procedia Engineering2012，，： | 1 |
| 4 | Degradation of hyaluronan by an electrochemical process显示文摘 | GU Zhiming CAI Quanyuan HE Yun | 2010 | Carbohydrate Polymers2010，82，2： | 1 |
| 5 | Synthesis of Highly Sensitive Fluorescent Probe Based on Tetrasubstituted Imidazole and Its Application for Selective Detection of Ag^+ Ion in Aqueous Media显示文摘 | MI Zhiming CHEN Yao CHEN Xiaodong YAN Liuqing GU Qiang ZHANG Hanqi CHEN Chunhai ZHANG Yumin | 2018 | Chemical Research in Chinese Universities2018，34，3： | 1 |
| 6 | degradation of chitosan by an electrochemical process显示文摘 | Quanyuan Cai Zhiming Gu Yong Chen | 2010 | Carbohydrate Polymers2010，79，3： | 1 |
| 7 | The process of informa tion systems architecture development显示文摘 | Zhang Xuemin Sun Zhiming Gu Ping | 2012 | Procedia Engineering2012，29，： | 1 |
| 8 | Separation of yeast phospholipids using one - dimensional thin - layer chromatography 显示文摘 | VADEN D L GOHIL V M GU Zhiming | 2005 | Analytical Biochemistry2005，338，： | 1 |
| 9 | Co-POM@MOF-derivatives with trace cobalt content for highly efficient oxygen reduction显示文摘A simple and effective method for constructing highly efficient oxygen reduction catalysts with trace amount of isolated cobalt was firstly developed by the pyrolysis of Co-centered polyoxometalate@metalorganic framework (Co-POM@MOF).The Co-centered polyoxometalate ([Co W_(12)O_(40)]^(6-)) was confined in the well-defined void space of ZIF-8 to achieve homogeneous dispersion of polyoxoanions,where the isolated Co centers were well surrounded by the W-O shell and ZIF-8 framework.The Co-POM@MOF-derived N-doping porous carbon (Co-W-NC) with trace cobalt content was facilely prepared by the pyrolysis of the Co-POM@MOF under Ar atmosphere.The single dispersion of polyoxoanions in the metal-organic framework with complete separation of Co center surrounding by W-O shell and ZIF-8 framework ensures the uniform dispersion of Co atoms,confirmed by the Fourier transform extended X-ray absorption fine structure measurement.The Co-W-NC composite catalysts exhibit high performance for oxygen reduction reactions with a half-wave potential of 0.835 V in 0.1 mol/L KOH solution with excellent durability,which is much superior to that of the control samples derived from the[PW_(12)O_(40)]@ZIF-8,and the commercial Pt/C.This work highlights a new insight for constructing highly efficient catalysts via the introduction of metal-centered polyoxometalate into metal-organic framework following the high temperature treatment process. | Yitao Song Yewang Peng Shuang Yao Peng Zhang Yujie Wang Jianmin Gu Tongbu Lu Zhiming Zhang | 2022 | Chinese Chemical Letters2022，33，2： | 1 |
| 10 | A New Tetrasubstituted Imidazole Based Difunctional Probe for UV-spectrophotometric and Fluorometric Detecting of Fe^3+Ion in Aqueous Solution显示文摘Two new compounds,4-(2-bromophenxl-4,5-diphenyl-imidazol-1-yl)ani 1 ine(probe 1)and 4-[2,4,5-tris(4-bromopheny1)-1H-imidazol-1-y1]aniline(probe 2),were synthesized via a soft and high-efficiency one-pot microwave-assisted method under solvent-free conditions.Their sensing to different metal ions was detected by UV spectrophotometry and fluorescence spectrometry.Probe 2 revealed highly selective and sensitive UV and fluorescence response to Fe^3+ion.Upon the addition of Fe^3+ion,probe 2 showed obvious color change of the solution,conspicuous absorbance enhancement and relatively quick fluorescence quenching.The detection limit for Fe^3+ion was respectively calculated to be 0.72μmol/L(fluorescent detection)and 0.48μmol/L(UV-spectnim detection).Also,probe 2 was bound by Fe^3+ion to tonn a 1:1 complex.Moreover,preliminary application of probe 2 tor detecting Fe^3+ion in aqueous solution was attempted,and satisfying results were obtained. | SHI Yanpeng CHEN Xiaodong MI Zhiming ZHENG Ran FAN Jie GU Qiang ZHANG Yuinin | 2019 | Chemical Research in Chinese Universities2019，35，2： | 0 |
| 11 | Polynomial Time Algorithm for the Two-Side Exponentiation Problem about Ergodic Matrices over Finite Field显示文摘By using the minimal polynomial of ergodic matrix and the property of polynomial over finite field,we present a polynomial time algorithm for the two-side exponentiation problem about ergodic matrices over finite field (TSEPEM),and analyze the time and space complexity of the algorithm.According to this algorithm,the public key scheme based on TSEPEM is not secure. | GU Chunsheng JING Zhengjun YU Zhiming | 2012 | Wuhan University Journal of Natural Sciences2012，17，3： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员