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The Reflexive Selfadjoint Solutions to Some Operator Equations

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Communications in Mathematical Research 2021年第2期37卷 236-254页

作者： wenting liang Chunyuan Deng Department of Mathematics Taiyuan Normal UniversityJinzhong 030619ShanxiChina School ofMathematical Science South ChinaNormal UniversityGuangzhou 510631China

In this paper,we study the existence of the reflexive,reflexive selfadjoint and reflexive positive solutions to some operator equations with respect to the generalized reflection operator dual(P,Q).We derive necessary and sufficient conditions for the solvability of these equations and provide a detailed description of the solutions in the solvable case by using the Moore-Penrose inverses.

关键词： (P Q)reflexive solution operator equation positive operator

Amperometric Biosensor for Detection of Phenolic Compounds Based on Tyrosinase, N-AcetyI-L-cysteinecapped Gold Nanoparticles and Chitosan Nanocomposite

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Chinese Journal of Chemistry 2017年第8期35卷 1305-1310页

作者： Wenjuan Dong Jiyan Han Jia Shi wenting liang Yuexia Zhang Chuan Dong Institution of Environmental Science College of Chemistry and Chemical Engineering Shanxi University Taiyuan Shanxi 030006 China Department of Laboratory Medicine College of Fenyang Shanxi Medical University Fenyang Shanxi 032200 China

A novel biosensor was fabricated based on the immobilization of tyrosinase and N-acetyl-L-cysteine-capped gold nanoparticles onto the surface of the glassy carbon electrode via the film forming by chitosan. The NAC-AuNPs （N-acetyl-L-cysteine-capped gold nanoparticles） with the average size of 3.4 nm had much higher specific surface area and good biocompatibility, which were favorable for increasing the immobilization amount of enzyme, retaining the catalytic activity of enzyme and facilitating the fast electron transfer. The prepared biosensor exhibited suitable amperometric responses at -0.2 V for phenolic compounds vs. saturated calomel electrode. The parameters of influencing on the working electrode such as pH, temperature, working potential were investigated. Under optimum conditions, the biosensor was applied to detect catechol with a linear range of 1.0 ×10^-7 to 6.0 × 10^-5 mol·L^-1 , and the detection limit of 5.0×10^-8mol·L^-1 （S/N=3）. The stability and selectivity of the proposed biosensor were also evaluated.

关键词： tyrosinase biosensor gold nanoparticles phenolic compounds

Photochemical graft of γ-cyclodextrin's interior leading to in-situ charge-transfer complexes with unusual regioselectivity and its application in 3D photo-printing

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Science China Chemistry 2022年第6期65卷 1149-1156页

作者： Dongjing Zhang wenting liang Jigao Yi Jinlei Chen Yongjun Lv Ting Zhao Chao Xiao Xiangyu Xie Wanhua Wu Cheng Yang Key Laboratory of Green Chemistry&Technology of Ministry of Education College of ChemistryState Key Laboratory of BiotherapySichuan UniversityChengdu610064China Institute of Environmental Science Department of ChemistryShanxi UniversityTaiyuan030006China Key Laboratory of Environmental Materials&Remediation Technologies of Chongqing College of Chemistry&Environmental EngineeringChongqing University of Arts and SciencesChongqing402160China College of Chemical Engineering Sichuan University of Science&EngineeringZigong643000China

Photoirradiation of anthraquinone(AQ)derivatives withγ-cyclodextrin(γ-CD)in aqueous solution led to aγ-CD derivative with a 9,10-dihydroxylanthracene grafting unprecedentedly at the 5′-position of one glucoside ofγ-CD in high ***,another AQ enters into the remaining space of the 9,10-dihydroxylanthracene-occupiedγ-CD cavity to in-situ form a selfincluded quinhydrone charge transfer(CT)*** structure of the supramolecular CT complex was unambiguously demonstrated by 1 D and 2 D NMR(^(1)H NMR,^(13)C NMR,DEPT,^(1)H-^(1)H COSY,HSQC,HMBC,TOCSY,and ROESY)spectroscopies,which revealed a highly stereoselective stacking of the quinhydrone pairs in theγ-CD *** supramolecular CT complex showed an unusually high binding affinity and improved oxidation *** bearingγ-CD or anthraquinone were respectively synthesized by co-polymerization of acrylamide with the corresponding *** of aqueous mixtures containing these two types of polymers led to gelation,which was applied to 3 D photo-printing of soft materials.

关键词： supramolecular photochemistry cyclodextrin charge-transfer complex anthraquinone photo-printing

Pyrene-tiaraed pillar[5]arene:Strong intramolecular excimer emission applicable for photo-writing

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Chinese Chemical Letters 2021年第1期32卷 345-348页

作者： Chao Peng wenting liang Jiecheng Ji Chunying Fan Kuppusamy Kanagaraj Wanhua Wu Guo Cheng Dan Su Zhihui Zhong Cheng Yang Key Laboratory of Green Chemistry&Technology College of Chemistry and Healthy Food Evaluation Research CenterSichuan UniversityChengdu 610064China Institute of Environmental Science Department of ChemistryShanxi UniversityTaiyuan 030006China Huaxi MR Research Center(HMRRC) Department of RadiologyWest China HospitalSichuan UniversityChengdu 610041China

A pyrene-tiaraed pillar[5]a re ne derivative was synthesized,which showed a concentration-independent intensive excimer *** of the pyrene-tiaraed pillar[5]arene led to a switch from excimer to monomer emission,applica... 详细信息

关键词： Pillar[n]arenes Pyrene Excimer Photo-writing

Temperature-driven braking of γ-cyclodextrin-curcubit[6]urilcowheeled [4]rotaxanes

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Chinese Chemical Letters 2019年第3期30卷 577-581页

作者： Ran Liu Yuxue Zhang Wanhua Wu wenting liang Qinfei Huang Xingke Yu Wei Xu Dayang Zhou Narayanan Selvapalam Cheng Yang Key Laboratory of Green Chemistry & Technology College of Chemistry State Key Laboratory of Biotherapy West China Medical Center and Healthy Food Evaluation Research Center Sichuan University Institute of Environmental Sciences Department of Chemistry Shanxi University Comprehensive Analysis Center ISIR Osaka University Center for Supramolecular Chemistry International Research Center and Department of Chemistry Kalasalingam University

Several cyclodextrin-cucurbit[6]uril-cowheeled [4]rotaxanes were synthesized through the cucurbit[6]uril-templated azide-alkyne 1,3-dipolar cycloaddition. The intramolecular interaction between the aromatic axle and the capping groups of cyclodextrin moieties was investigated by UV-vis, fluorescence,circular dichroism and NMR spectroscopic studies. The rotational kinetic of the wheel around the axle can be manipulated by adjusting the temperature. The capping group apparently slowed down the rotation of the wheel, playing a role of the brake, and lowering the temperature can stop the rotation of the wheel on the NMR timescale.

关键词： Temperature-control Rotational kinetics Rotaxane Cyclodextrin Cucurbituril

Switched enantioselectivity by solvent components and temperature in photocyclodimerization of 2-anthracenecarboxylate with 6~A,6~X-diguanidio-γ-cyclodextrins

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Chinese Chemical Letters 2018年第1期29卷 87-90页

作者： Jigao Yi wenting liang Xueqin Wei Jiabin Yao Zhiqiang Yan Dan Su Zhihui Zhong Guowei Gao Wanhua Wu Cheng Yang Key Laboratory of Green Chemistry & Technology College of Chemistry and state Key Laboratory of Biotherapy West China Medical Center Sichuan University Institute of Environmental Sciences Department of Chemistry Shanxi University

A series of 6A,6X-diguanidio-y-cyclodextrins （CDs） were used as chiral hosts for mediating the enantiodifferentiating [4 ＋4] photocyclodimerization of 2-anthracenecarboxylic acid （AC）. These γ-CD derivatives form stable 1：2 ternary complexes with AC in aqueous ammonia solutions and the head-to- head photodimers 3 and 4 were greatly enhanced in the presence of these diguanidio-γ-CDs. The enantioselectivity ofchiral photodimers 2 and 3 is a critical function of the temperature and the ammonia contents, showinz inverted oroduct chiralitv by chanzinz these external factors.

关键词： CyclodextrinsPhotocyclodimerizationAnthracenecarboxylic acidSupramolecular complexationSolvent effect

以环保应对危机——环境法制建设的挑战与机遇

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法学杂志 2009年第4期30卷 7-10页

作者：周珂梁文婷中国人民大学法学院北京100872

我国针对全球金融危机提出了促进经济增长的十项措施,其中第五项是环保措施,这在历史上开创了一个以环保应对经济危机的全新理念和机制。金融危机对环境保护既是挑战也是机遇。中国应积极应对复杂多变的形势,提出措施,主动转型,借此时... 详细信息

我国针对全球金融危机提出了促进经济增长的十项措施,其中第五项是环保措施,这在历史上开创了一个以环保应对经济危机的全新理念和机制。金融危机对环境保护既是挑战也是机遇。中国应积极应对复杂多变的形势,提出措施,主动转型,借此时机将环境保护工作进一步推进,转化为推动经济结构调整和发展方式转变的有效途径。我国以环保应对危机,优先行动领域应当是加强农村环境保护。加强农村环境保护是落实科学发展观、构建和谐社会的必然要求;是促进农村经济社会可持续发展、建设社会主义新农村的重大任务;是建设资源节约型、环境友好型社会的重要内容;是全面实现小康社会宏伟目标的必然选择。解决农村环境问题,就要转变农业生产经营方式;完善耕地保护机制,加强土地生态建设;统筹城乡发展,合理区域规划;制定修改农村环境保护法律,加强农村环保基础设施建设;保障农民环境知情、参与权利,探索完善环境法律援助体系。

关键词：金融危机环境保护农村科学发展观

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三体量子纯态可分与纠缠的刻画

陕西师范大学学报（自然科学版） 2017年第3期45卷 24-28页

作者：梁文婷陈峥立陕西师范大学数学与信息科学学院陕西西安710119

利用三体量子纯态的Schmidt分解给出其完全可分的等价刻画以及若干推论。借助相对熵和互信息给出三体量子纯态完全可分的等价刻画,进而得到三体量子纯态是可分或纠缠的充要条件,并给出几个典型的例子。

关键词：三体量子纯态完全可分 von Neumann熵 Schmidt分解

以游憩为主要形式的国家公园生态产业化的难点及其破解思路——新质生产力视角

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旅游学刊 2024年第7期39卷 13-15页

作者：梁文婷王蕾苏杨西北大学陕西西安710127 陕西省文化遗产研究院陕西西安710075 青海玛多云享自然文旅有限公司青海果洛813500 国务院发展研究中心管理世界杂志社北京100026

一、国家公园的社会-生态福祉需要依托生态产业化来实现中国国家公园的三大理念是“国家代表性、生态保护第一、全民公益性”(2),分别反映了国家公园的资源价值和其兼具生态、社会效益的特点。但要实现国家公园的社会-生态福祉,不能直... 详细信息

一、国家公园的社会-生态福祉需要依托生态产业化来实现中国国家公园的三大理念是“国家代表性、生态保护第一、全民公益性”(2),分别反映了国家公园的资源价值和其兼具生态、社会效益的特点。但要实现国家公园的社会-生态福祉,不能直接套用其他区域的发展方式(如乡村振兴中的以产业兴旺带动生态宜居和生活富裕),这是因为对于产业发展而言,国家公园首先意味着国土空间用途管制。

关键词：中国国家公园生态福祉生态宜居生态保护乡村振兴用途管制三大理念国土空间