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| 1 | Dynamics of Wetland Landscape Pattern in Kaifeng City from 1987 to 2002显示文摘It is very significant for urban development and urban wetland protection and utilization to probe into the process and reasons of urban wetland landscape dynamics. Taking the information of remote sensing and detailed land survey data as the basic information sources, with the help of RS and GIS, according to the principles and methods of landscape ecology, this paper analyzed wetland landscape pattern dynamics and its reasons in Kaifeng City, Henan Prov-ince of China, from 1987 to 2002. The results show that the total wetland area in Kaifeng City firstly reduced by 20.1% from 1987 to 1990 and then increased from 1990 to 2002, with an average annual growth rate of 3.3%. At the same time, landscape fragment degree and landscape dominance degree increased, respectively from 0.64 to 0.72 and from 0.3754 to 0.5563, but mean patch area, maximum patch area, patch fractal dimension reduced. As far as single landscape element concerned, from 1987 to 2002, patch area, patch number, patch density, patch shape and patch location changed in varying degrees in all wetland types in Kaifeng City, among which rice field changed most and others relatively less. In the recent 20 years, rice fields, lake wetlands, puddles and ponds had a higher stability, but river and bottomland wetlands were mostly transformed to land use types. The change of wetland landscape pattern was the result of the combined action of the Huanghe (Yellow) River, urban expansion, wide cultivation of rice, and rapid development of fishery. Among them human activities were the main driving factors for wetland landscape changes. | CAO Xinxiang | 2008 | Chinese Geographical Science2008，18，2： | 10 |
| 2 | Estimates for eigenvalues of Laplacian operator with any order显示文摘Let D be a bounded domain in an n-dimensional Euclidean space Rn.Assume that 0<λ1≤λ2≤…≤λk≤…are the eigenvalues of the Dirichlet Laplacian operator with any order l: (-△)lu=λu,in D u=■=…=■=0,on■■D. Then we obtain an upper bound of the(k+1)-th eigenvalueλk+1in terms of the first k eigenvalues. sum from i=1 to k(λk+1-λi)≤(1/n)[4l(n+2l-2)]1/2{sum from i=1 to k(λk+1-λi)1/2λil-1/lsum from i=1 to k(λk+1-λi)1/2λi1/l}1/2. This ineguaiity is independent of the domain D.Furthermore,for any l≥3 the above inequality is better than all the known results.Our rusults are the natural generalization of inequalities corre- sponding to the case l=2 considered by Qing-Ming Cheng and Hong-Cang Yang.When l=1,our inequalities imply a weaker form of Yang inequalities.We aslo reprove an implication claimed by Cheng and Yang. | Fa-en WU~(1+) Lin-fen CAO~2 1 Department of Mathematics,Beijing Jiaotong University,Beijing 100044,China 2 Department of Mathematics,Henan Normal University,Xinxiang 453007,China | 2007 | Science China Mathematics2007，50，8： | 7 |
| 3 | Investigation of the preparation methodologies of Pd-Cu single atom alloy catalysts for selective hydrogenation of acetylene显示文摘流电的代替,合作受精和顺序的受精被采用了准备 Pd-Cu 有不到 1 wt-% Cu 和 ca 的二金属的催化剂。为在过量乙烯的乙炔的选择加氢的 0.03 wt-% Pd。高角度环形的黑暗扫描地的传播电子显微镜学(HAADF 茎) 和 H 2 化学吸着结果证实 Pd-Cu singleatom 合金结构在所有三二金属的催化剂被构造。催化测试显示当乙炔的变换超过 99% 时,这三单个原子合金催化剂的乙烯的选择仍然是超过 73% 。而且,顺序的早期的湿受精准备的单个原子合金催化剂被发现在使用的三个过程之中有最好的稳定性。 | Xinxiang Cao Arash Mirjalili James Wheeler Wentao Xie Ben W.-L. Jang | 2015 | Frontiers of Chemical Science and Engineering2015，9，4： | 4 |
| 4 | Preparation and investigation of Pd doped Cu catalysts for selective hydrogenation of acetylene显示文摘A series of PdCu bimetallic catalysts with low Cu and Pd loadings and different Cu:Pd atomic ratios were prepared by conventionally sequential impregnation(CSD)and modified sequential impregnation(MSI)of Cu and Pd for selective hydrogenation of acetylene.Characterization indicates that the supported copper(I)nitrate in the PdCu bimetallic catalysts prepared by MSI can be directly reduced to Cu metal particles due to the hydrogen spillover from Pd to Cu(NO3)2 crystals.In addition,for the catalysts prepared by MSI,Pd atoms can form PdCu alloy on the surface of metal particles,however,for the catalysts prepared by CSI,Pd tends to migrate and exist below the surface layer of Cu.Reaction results indicate that compared with CSI,the MSI method enables samples to possess preferable stability as well as comparable reaction activity.This should be due to the MSI method in favor of the formation of PdCu alloy on the surface of metal particles.Moreover,even Pd loading is super low,<0.045 wt-%in this study,by through adjusting Cu loading to an appropriate value,attractive reactivity and selectivity still can be achieved. | Xinxiang Cao Tengteng Lyu Wentao Xie Arash Mirjalili Adelaide Bradicich Ricky Huitema Ben W.-L.Jang Jong K.Keum Karren More Changjun Liu Xiaoliang Yan | 2020 | Frontiers of Chemical Science and Engineering2020，14，4： | 4 |
| 5 | Functionalized metal-organic frameworks with strong acidity and hydrophobicity as an efficient catalyst for the production of 5-hydroxymethylfurfural显示文摘In the dehydration of fructose to 5-hydroxymethyl furfural(HMF),in situ produced water weakens the acid strength of the catalyst and causes the rehydration of HMF,causing unsatisfactory catalytic activity and selectivity.In this work,a class of benzenesulfonic acid-grafted metal-organic frameworks with strong acidity and hydrophobicity is obtained by the direct sulfonation method using 4-chlorobenzenesulfonic acid as sulfonating agent.The resultant MOFs have a specific surface area of greater than 250 m^(2)·g^(-1),acid density above 1.0 mmol·g^(-1),and water contact angle up to 129°.The hydrophobic MOF-PhSO_(3)H exhibits both higher catalytic activity and selectivity than MOF-SO_(3)H in the HMF synthesis due to its better hydrophobicity and olephilicity.Moreover,the catalyst has a high recycled stability.At last,fructose is completely converted,and 98.0%yield of HMF is obtained under 120℃ in a DMSO solvent system.The successful preparation of the hydrophobic acidic MOF provides a novel hydrophobic catalyst for the synthesis of HMF. | Huan Li Yao Zhong Luxi Wang Qiang Deng Jun Wang Zheling Zeng Xinxiang Cao Shuguang Deng | 2021 | Chinese Journal of Chemical Engineering2021，34，5： | 2 |
| 6 | Light A physics in the lepton-specific two-Higgs doublet model显示文摘We examine various direct and indirect constraints on the lepton-specific two-Higgs doublet model and discuss its phenomenology at colliders in the allowed parameter space.The constraints we consider come from the precision electroweak data,the direct search for Higgs boson,the muon anomalous magnetic moment,as well as some theoretical consistency requirements.We find that in the allowed parameter space the CP-odd Higgs boson A is rather light (m A < 30 GeV with 95% possibility),which is composed dominantly by the leptonic Higgs and decays dominantly into τ + τ;while the SM-like Higgs boson h (responsible largely for electroweak symmetry breaking) decays dominantly in the mode h → AA → 4τ with a large decay width,which will make the Higgs discovery more difficult at the LHC.Whereas,this scenario predicts rare Z decays Z → AAA and Z →τ + τA with their branching ratios ranging from 10-8 to 10-and 10-5 to 10-4 respectively,which may be accessible at the GigaZ option of the ILC. | CAO JunJie 1,HENG ZhaoXia 2,3 & WAN PeiHua 1 1 College of Physics & Information Engineering,Henan Normal University,Xinxiang 453007,China 2 Key Laboratory of Frontiers in Theoretical Physics,Institute of Theoretical Physics,Chinese Academy of Sciences,Beijing 100190,China 3 Kavli Institute for Theoretical Physics China,Chinese Academy of Sciences,Beijing 100190,China | 2010 | Science China(Physics,Mechanics & Astronomy)2010，53，11： | 2 |
| 7 | RNA interference blocking the apoptosis in HEK293 cells induced by overexpression of alpha-synuclein显示文摘BACKGROUND:Overexpression ofα-synuclein can induce cell apoptosis.RNA interference(RNAi) may block specific gene function and cause gene silencing. OBJECTIVE:To construct a specific and effective RNAi plasmid for theα-synuclein gene and investigate if RNAi can block apoptosis in HEK293 cells,induced by overexpression of wild-typeα-synuclein. DESIGN,TIME AND SETTING:A contrast experiment based on genetically engineered cytobiology was performed at the State Key Lab of Medical Genetics of China,Xiangya Medical College of Central South University,between October 2004 and October 2008. MATERIALS:HEK293 cells and pBSHH1 plasmid were provided by the State Key Lab of Medical Genetics of China;OligDNA sequence by Sagon Bioengineering Company,Shanghai; Lipofectamine 2000 by Invitrogen,USA;α-synuclein monoclonal antibody,Hoechst 33258,and MTT; by Sigma,USA;Horseradish peroxidase-coupled goat anti-rat IgG by KPL,USA;FACSan flow cytometry by BD,USA. METHODS:Four target sites were used to construct hairpin RNA pBSHH1 vectors-pSYNi-1, pSYNi-2,pSYNi-3 and pSYNi-4-which were cloned in the pBSHH1 plasmid.HEK293 cells were transfected using Lipofectamine 2000.In addition,a non-transfect group and a negative plasmid transfect group were established.The cultured HEK293 cells were processed as follows: transfection of blank plasmid(blank control group),transfection ofα-synuclein-pEGFP and RNAi negative vector(negative control group),and transfection ofα-synuclein-pEGFP and pSYNi-1 (transfection group).Cells in all groups were transfected with Lipofectamine 2000 for 48 hours. MAIN OUTCOME MEASURES:Expression ofα-synuclein mRNA and protein were detected by RT-PCR and Western blot.Cell morphology was observed under an inverted fluorescence microscope;cell viability was measured using MTT method;and cell apoptosis was determined with Annexin V-PE flow cytometry. RESULTS:α-synuclein mRNA and protein expressions were significantly decreased in the pSYNi-1 group when compared with the non-transfect and negative plasmid transfect groups(P<0.05).The expressions were partially decreased in the pSYNi-2 group,but there was no significant difference in the pSYNi-3 and pSYNi-4 groups.Hoechst staining indicated that cell nuclei were enlarged in the negative control group,coloring was not uniform,and chromatin was accumulated and appeared spot-like.The nucleus coloring was uniform in the transfection group compared to negative control group.Cell viability in the negative control group was significantly lower than blank control group with cell apoptosis being significantly increased(P<0.05).In comparison with negative control group, cell viability was significantly increased in the transfection group and cell apoptosis was significantly decreased(P<0.05). CONCLUSION:pSYNi-1 can inhibitα-synuclein gene expression and block apoptosis of HEK293 cells induced by overexpression of wild-typeα-synuclein. | Tao Chen Beisha Tang Xiaoping Liao Guoqiang Wen Xinxiang Yan Jifeng Guo Yuhu Zhang Feng Ouyang Zhigang Long Li Cao Jing Li | 2009 | Neural Regeneration Research2009，4，7： | 1 |
| 8 | Spectrophotometric studies on the interaction between myricetin and lysozyme in the absence or presence of Cu 2+ or Fe 3+显示文摘 | Daojin Li Xinxiang Cao Baoming Ji | 2010 | Journal of Luminescence2010，，10： | 1 |
| 9 | Preparation and characterization of polyvinyl butyral/silica hybrid antireflective coating: effect of PVB on moisture-resistance and hydrophobicity显示文摘 | Zhang Xinxiang Cao Congrui Xiao Bo | 2010 | Journal of Sol-gel Science and Technology2010，53，1： | 1 |
| 10 | Association between serum ferritin and outcomes in critically ill patients:a retrospective analysis of a large intensive care unit database显示文摘To the Editor:Critically ill patients are always complicated with systematic inflammation causing organ dysfunction,even multiple organ dysfunction syndrome(MODS)or sepsis,which commonly contributes to mortality in intensive care unit(ICU).It was originally thought that ferritin plays an important role in the hematopoietic system for its iron storage capacity.Recently,it was reported that the raised plasma ferritin is correlated with a poor prognosis of diseases.The level of ferritin could not only reflect disease activity,but also may predict the outcomes.[1]The relationship between plasma ferritin and clinical outcomes of critically ill or sepsis patients remained controversial. | Linli Sang Weiyun Teng Mengmeng Zhao Ping Ding Xinxiang Xu Yuxiu Wang Liuzhao Cao | 2022 | Chinese Medical Journal2022，135，21： | 0 |
| 11 | Application of Genetic Programming in Predicting Infinite Dilution Activity Coefficients of Organic Compounds in Water显示文摘In this paper, we calculated 37 structural descriptors of 174 organic compounds. The 154 molecules were used to derive quantitative structure - infinite dilution activity coefficient relationship by genetic programming, the other 20 compounds were used to test the model. The result showed that molecular partition property and three-dimensional structural descriptors have significant influence on the infinite dilution activity coefficients. | Yi Lin CAO, Huan Ying LI College of Chemistry and Environmental Science, Henan Normal University, Xinxiang 453002 | 2003 | Chinese Chemical Letters2003，14，9： | 0 |
| 12 | APPLICATIONS OF FAST SIMULATED ANNEALING IN NEURAL NETWORKS显示文摘APPLICATIONSOFFASTSIMULATEDANNEALINGINNEURALNETWORKS￥YiLinCAO;QingZhang;LUShu;TingYANG(DepartmentofChemistry,HenanNormalUnive... | Yi Lin CAO Qing Zhang LU Shu Ting YANG(Department of Chemistry, Henan Normal University, Xinxiang, 453002)Hong Lin LIU(Shanghai Institute of Mentallurgy, Academia Sinica, Shanghai, 200050) | 1996 | Chinese Chemical Letters1996，7，4： | 0 |
| 13 | Asymmetric double-layer composite electrolyte with enhanced ionic conductivity and interface stability for all-solid-state lithium metal batteries显示文摘All-solid-state Li metal battery has been regarded as a promising battery technology due to its high energy density based on the high capacity of lithium metal anode and high safety based on the all solid state electrolyte without inflammable solvent.However,challenges still exist mainly in the poor contact and unstable interface between electrolyte and electrodes.Herein,we demonstrate an asymmetric design of the composite polymer electrolyte with two different layers to overcome the interface issues at both the cathode and the anode side simultaneously.At the cathode side,the polypropylene carbonate layer has enough viscosity and flexibility to reduce the inter-facial resistance,while at the Li anode side,the polyethylene oxide layer modified with hexagonal boron nitride has high mechanical strength to suppress the Li dendrite growth.Owing to the synergetic effect between different components,the asprepared double layer composite polymer electrolyte demonstrates a large electrochemical window of5.17 V,a high ionic conductivity of 6.1×10~(-4) S/cm,and a transfe rence number of 0.56,featuring excellent ion transport kinetics and good chemical stability.All-solid-state Li metal battery assembled with LiFePO_4 cathode and Li anode delivers a high capacity of 150.9 mAh/g at 25℃ and 0.1 C-rate,showing great potential for practical applications. | Binglu Zhao Luxiang Ma Kai Wu Mengxiong Cao Minggui Xu Xinxiang Zhang Wen Liu Jitao Chen | 2021 | Chinese Chemical Letters2021，32，1： | 0 |
| 14 | COMPOSITION-THERMODYNAMIC PROPERTY RELATIONSHIPS FOR TERNARY POLAR MIXTURE VIA NEURAL NETWORKS显示文摘COMPOSITION-THERMODYNAMICPROPERTYRELATIONSHIPSFORTERNARYPOLARMIXTUREVIANEURALNETWORKS￥YiLinCAO;ShuTingYANG;QingZhangLU(Depart... | Yi Lin CAO Shu Ting YANG Qing Zhang LU(Department of Chemistry,Henan Normal University, Henan, Xinxiang, 453002) | 1996 | Chinese Chemical Letters1996，7，7： | 0 |
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