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Seasonal changes in tannin and nitrogen contents of Casuarina equisetifolia branchlets

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2009年第2期10卷 103-111页

作者： Li-hua ZHANG Gong-fu YE Yi-ming LIN hai-chao zhou Qi ZENG MOE Key Lab for Coastal and Wetland Ecosystems School of Life Sciences Xiamen University Xiamen 361005 China Fujian Academy of Forestry Fuzhou 350012 China

Seasonal dynamics of total phenolics (TP), extractable condensed tannins (ECT), protein-bound condensed tannins (PBCT), fiber-bound condensed tannins (FBCT), total condensed tannins (TCT), and protein precipitation capacity (PPC) in young, mature and senescent branchlets of Casuarina equisetifolia were studied at Chishan Forestry Center of Dongshan County, Fujian Province, China. In addition, nitrogen contents of branchlets at the different developmental stages were also determined. The contents of TP and ECT, and PPC in young branchlets were significantly higher than those in mature and senescent branchlets through the season. However, PBCT contents were significantly higher in senescent branchlets than those in young and mature branchlets; FBCT fluctuated with season. Young branchlets had the highest N content, which decreased during branch maturity and senescence. The highest contents of TP and the lowest contents of TCT and N in young and mature branchlets were observed in summer. There was a significant negative correlation between TP and N contents. In contrast, TCT contents were positively correlated to N contents. Nutrient resorption during senescence and high TCT:N ratios in senescent branchlets are the important nutrient conservation strategies for C. equisetifolia.

关键词： Casuarina equisetifolia Condensed tannins Total phenolics Nitrogen Seasonal dynamics

Microcosm study on fate and dynamics of mangrove tannins during leaf litter leaching

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Ecological Processes 2023年第1期12卷 520-533页

作者： hai-chao zhou Hui-Xing Kang Jian Wei Chang-Jun Gao Muzammil Hussain Yi-Jian Fu Ming-Dang Li Feng-Lan Li Steven Jing-Liang Xu Fred Wang-Fat Lee Ming-Guo Jiang Yi-Bing Wang Xiao-Xia Chen Nora Fung-Yee Tam Tao Lang Greater Bay Area Coastal Mangrove Wetland Research&Development Centre MNR Key Laboratory for Geo-Environmental Monitoring of Great Bay AreaCollege of Life Sciences and OceanographyShenzhen UniversityShenzhen 518060China Institute of Ecology College of Urban and Environmental Sciences and Key Laboratory for Earth Surface Processes of Ministry of EducationPeking UniversityBeijing 100091China Guangdong Provincial Key Laboratory of Silviculture Protection and UtilizationGuangdong Academy of ForestryGuangzhou 510520China School of Science and Technology The Hong Kong Metropolitan UniversityKowloonHong Kong 999077SARChina Guangxi Key Laboratory for Polysaccharide Materials and Modifications School of Marine Sciences and BiotechnologyGuangxi Minzu UniversityNanning 530008China State Key Laboratory of Marine Pollution City University of Hong KongKowloonHong Kong 999077SARChina

Background Mangrove tannins can participate in wetland biogeochemical ***,their fate and dynamics during leaf litter leaching have yet to be elucidated in coastal aquatic *** By using a simulated microcosm experiment,changes in leaf litter mass and tannin compounds,including total phenolics(TP),extractable condensed tannins(ECT),and bound condensed tannins(BCT),were examined in the litters and leachates of four common mangrove species:Kandelia obovata(Ko),Aegiceras corniculatum(Ac),Sonneratia apetala(Sa),and Avicennia marina(Am).Results Leaching caused a notable decline in litter mass,TP,and ECT in the leaf litter of Ko,Ac,Sa,and Am,while BCT increased significantly in Ko and *** in foliar TP was higher than in leaf litter mass,and loss in foliar ECT was higher than in TP of Ko and Ac,but Sa showed the opposite *** temporal changes of TP and ECT concentrations in leachates followed a similar trend,with an initial increase followed by a *** dynamics in Ko and Ac leachates correlated with their TP concentrations,while in Sa leachate,the peak ECT occurred 72 h later than its TP *** leachate ECT concentrations were highest in Ac,followed by Ko,and significantly lower in *** peak TP and ECT proportions in leachates accounted for 9.2-23.9%and 7.7-9.4%of the total decreases in foliar TP and ECT,*** During the leaching process,tannins’fate was species-specific,while the dynamics were almost similar.

关键词： Mangrove tannins Leaf litter decomposition Leaching Total phenolics Condensed tannins

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素数阶群的约简(共轴)模糊幂半群结构

模糊系统与数学 2021年第1期35卷 27-33页

作者：晁海洲倪翔飞上海财经大学浙江学院浙江金华321013 浙江师范大学数计学院浙江金华321013

本文给出了素数阶群上的约简模糊幂半群、共轴模糊幂半群的概念。利用OP-极限讨论了约简模糊幂半群、共轴模糊幂半群中子半群的性质。刻画了约简模糊幂半群、共轴模糊幂半群的结构。

关键词：模糊集模糊二元运算 OP-极限约简模糊幂半群共轴模糊幂半群

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模糊集合的OP-极限

高校应用数学学报（A辑） 2023年第1期38卷 111-120页

作者：晁海洲倪翔飞上海财经大学浙江学院浙江金华321013 浙江师范大学数计学院浙江金华321001

研究了支撑集为群的模糊集合在反复“自乘”下的极限的存在性和形态问题.给出了模糊集合的OP-极限概念.利用贝壳对和大(小)-瓣,给出了OP-极限存在的充分条件.讨论了一些特殊群上模糊集合的OP-极限,这些OP-极限都具有较好的平层形态.

关键词：模糊集模糊二元运算 OP-极限贝壳对大(小)瓣

Mechanistic insight into the synergy between nickel single atoms and nanoparticles on N-doped carbon for electroreduction of CO2

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Journal of Energy Chemistry 2025年第1期100卷 327-336页

作者： Mingdong Sun Wenwen Guan Cailing Chen chao Wu Xiaoling Liu Biao Meng Tao Chen Yu Han Jun Wang Shibo Xi Yu zhou State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical Engineering Nanjing Tech University Advanced Membranes and Porous Materials Center Physical Sciences and Engineering Division King Abdullah University of Science and Technology Institute of Sustainability for Chemicals Energy and Environment A*STAR (Agency for Science Technology and Research) College of Materials Science and Engineering Sichuan University

The synergy of single atoms （SAs） and nanoparticles （NPs） has demonstrated great potential in promoting the electrocatalytic carbon dioxide reduction reaction （CO2RR）;however,the rationalization of the SAs/NPs proportion remains one challenge for the catalyst ***,a Ni2+-loaded porous poly（ionic liquids）(PIL) precursor synthesized through the free radical self-polymerization of the ionic liquid monomer,1-allyl-3-vinylimidazolium chloride,was pyrolyzed to prepare the Ni,N co-doped carbon materials,in which the proportion of Ni SAs and NPs could be facilely modulated by controlling the annealing *** catalyst Ni-NC-1000 with a moderate proportion of Ni SAs and NPs exhibited high efficiency in the electrocatalytic conversion of CO2into *** Ni K-edge X-ray absorption near-edge structure （XANES） spectra and theoretical calculations were conducted to gain insight into the synergy of Ni SAs and *** charge transfer from Ni NPs to the surrounding carbon layer and then to the Ni SAs resulted in the electron-enriched Ni SAs active *** the electroreduction of CO2,the coexistence of Ni SAs and NPs strengthened the CO2activation and the affinity towards the key intermediate of*COOH,lowering the free energy for the potential-determining*CO2→*COOH step,and therefore promoted the catalysis efficiency.

关键词： Single atom catalyst Synergy effect Carbon catalyst Electrocatalysis

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基于自对偶码的LDPC码构造（英文）

大学数学 2016年第1期32卷 7-10页

作者：晁海洲倪翔飞上海财经大学浙江学院浙江金华321013 浙江师范大学数理与信息工程学院浙江金华321001

给出了一种通过自对偶码构造LDPC码的新方法.分析了此类码的码长及码率的范围.并通过MATLAB编程搜索找到了由在GF(11)上码长为16的自对偶码生成的一个具有较高码率和较好性质的LDPC码的实例.

关键词： LDPC码自对偶码 α-位置向量函数代数编码理论生成矩阵

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基于模糊幂半群的概率加密方法设计

通信技术 2020年第7期53卷 1735-1739页

作者：晁海洲倪翔飞上海财经大学浙江学院浙江金华321013 浙江师范大学数计学院浙江金华321001

基于素数阶群上的一类特殊模糊幂半群——约简模糊幂半群的平层结构,给出了一种一次一密的非对称概率加密方案。并将该方案与普通对称私钥加密方案、移位寄存器生成的序列密码及公钥密码方案进行了比较,分析了该方案的性能。该方案相较... 详细信息

基于素数阶群上的一类特殊模糊幂半群——约简模糊幂半群的平层结构,给出了一种一次一密的非对称概率加密方案。并将该方案与普通对称私钥加密方案、移位寄存器生成的序列密码及公钥密码方案进行了比较,分析了该方案的性能。该方案相较于公钥密码方案对加密密钥传输信道保密性要求较高、属私钥密码体系,但兼具一次一密和概率密码特性,对传输的时钟同步要求低,且对统计分析破解方法具有较好抵抗性。

关键词： OP-极限模糊幂半群概率加密一次一密

Nanostructured ZnO/BiVO_(4)I-scheme heterojunctions for piezocatalytic degradation of organic dyes via harvesting ultrasonic vibration energy

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 488-497页

作者： Yiling Li Xiaoyao Yu Yingjie zhou Yao Lin Ying Wu Key Laboratory of the Ministry of Education for Advanced Catalysis Materials College of Chemistry and Materials ScienceZhejiang Normal UniversityJinhua 321004China

BiVO_(4)porous spheres modified by ZnO were designed and synthesized using a facile two-step *** resulting ZnO/BiVO_(4)composite catalysts have shown remarkable efficiency as piezoelectric catalysts for degrading Rhodamine B(RhB)unde mechanical vibrations,they exhibit superior activity compared to pure *** 40wt%ZnO/BiVO_(4)heterojunction composite displayed the highest activity,along with good stability and *** enhanced piezoelectric catalytic activity can be attributed to the form ation of an I-scheme heterojunction structure,which can effectively inhibit the electron-hole ***,hole(h+)and superoxide radical(·O_(2)^(-))are proved to be the primary active ***,ZnO/BiVO_(4)stands as an efficient and stable piezoelectric catalyst with broad potential application in the field of environmental water pollution treatment.

关键词： piezoelectric catalytic heterojunction dye degradation ultrasonic vibration

Interfacial Zn2+-solvation regulator towards reversible and stable Zn anode

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Journal of Energy Chemistry 2025年第1期100卷 684-692页

作者： Miao zhou Xiongbin Luo Hang Li Shan Guo Zhuang Tong Xiaotao zhou Xu Li Zhaohui Hou Shuquan Liang Guozhao Fang College of Mechanical Engineering Key Laboratory of Hunan Province for Advanced Carbon-based Functional Materials Hunan Institute of Science and Technology School of Materials Science and Engineering Key Laboratory of Electronic Packaging and Advanced Functional Materials of Hunan Province Central South University College of Materials and Metallurgy Guizhou University National Energy Metal Resources and New Materials Key Laboratory Central South University

Aqueous zinc-ion batteries （AZIBs） are fundamentally challenged by the instability of the electrode/electrolyte interface,predominantly due to irreversible zinc （Zn） deposition and hydrogen ***,the intricate mechanisms behind the electrochemical discrepancies induced by interfacial Zn2+-solvation and deposition behavior demand comprehensive *** molecules endowed with special functional groups （such as hydroxyl,carboxyl,etc.） have the potential to significantly optimize the solvation structure of Zn2+and regulate the interfacial electric double layer （EDL）.By increasing nucleation overpotential and decreasing interfacial free energy,these functional groups facilitate a lower critical nucleation radius,thereby forming an asymptotic nucleation model to promote uniform Zn ***,this study presents a pioneering approach by introducing trace amounts of n-butanol as solvation regulators to engineer the homogenized Zn （H-Zn） anode with a uniform and dense *** interfacial reaction and structure evolution are explored by in/ex-situ experimental techniques,indicating that the H-Zn anode exhibits dendrite-free growth,no by-products,and weak hydrogen evolution,in sharp contrast to the bare ***,the H-Zn anode achieves a remarkable Zn utilization rate of approximately 20% and simultaneously sustains a prolonged cycle life exceeding 500 ***,the H-Zn//NH4V4O10（NVO） full battery showcases exceptional cycle stability,retaining 95.04%capacity retention after 400 cycles at a large current density of 5 A *** study enlightens solvation-regulated additives to develop Zn anode with superior utilization efficiency and extended operational lifespan.

关键词： Aqueous zinc-ion batteries Interfacial reaction Asymptotic nucleation model Reversible and stable Zn anode