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Field-Free Molecular Orientation Induced by Nonresonant Square Laser Pulses

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Chinese Physics Letters 2011年第4期28卷 83-86页

作者： XU Shu-Wu HUANG Yun-Xia JI Xian-Ming School of Science Nantong UniversityNantong 226007

We propose a scheme to achieve field-free molecular orientation by a nonresonant square laser *** CO molecules as an example,we show that,differing from the conventional Gaussian pulse,field-free molecular orientation excited by square pulses can be realized in both nonadiabatic and adiabatic *** also show that the maximum degree of the molecular orientation can be further enhanced by separating one square pulse into two time delayed subpulses and by applying the second subpulse at the beginning of the rotational wave packet rephrasing created by the first subpulse and the optimal intensity ratio between the two subpulses is about I_(1)/I_(2)=1:1.5.

关键词： pulse separating Pulse

Fabrication, Characterization, and Surface-Enhanced Raman Activity Study of Silver Coated Gold Nanoparticulate Films

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Chinese Journal of Chemistry 2007年第5期25卷 609-615页

作者：方靖淮仲崇贵沐仁旺施建珍葛存旺 Department of Physics Nantong University Nantong Jiangsu 226007 China Department of Chemistry Nantong University Nantong Jiangsu 226007 China

This paper reports a study on the preparation of Ag-clad Au colloidal monolayer films by a combination of colloid self-assembly and liquid phase microwave high-pressure technique. Firstly, monodisperse Au nanoparticles prepared by microwave heating method were assembled onto a quartz slide. Then, these Au colloidal particles on the quartz surface acted as seeds for growing the Ag-clad Au composite particulate films. The obtained particulate films were characterized by UV-Vis spectra and atomic force microscopy. It was found that the thickness of the shell and thus the size of particles in the composite colloidal films could be controlled by deposition of Ag on the preformed Au colloidal particle film in the microwave reaction system, and such films significantly increased the surface-enhanced Raman scattering enhancement （SERS） ability compared with Au colloidal particle films. Their strong enhancement ability may mainly stem from relatively large particle consisting of Ag cladding as well as effective coupling among particles in the Ag-clad Au particle ftlms.

关键词： assembly microwave heating UV-Vis spectrum surface morphology SERS

On K_(1,k)-factorization of bipartite multigraphs

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Applied Mathematics(A Journal of Chinese Universities) 2008年第3期23卷 345-350页

作者： WANG Jian Nantong Vocational College Nantong 226007 China

A K1,k-factorization of λKm,n is a set of edge-disjoint K1,k-factors of λKm,n, which partition the set of edges of λKm,n. In this paper, it is proved that a sufficient condition for the existence of K1,k-factorization of λKm,n, whenever k is any positive integer, is that （1） m ≤ kn, （2） n ≤ km, （3） km-n = kn-m ≡ 0 （mod （k^2- 1）） and （4） λ（km-n）（kn-m） ≡ 0 （mod k（k- 1）（k^2 - 1）（m ＋ n））.

关键词： factor factorization bipartite multigraph

A sharp gradient estimate for the weighted p-Laplacian

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Applied Mathematics(A Journal of Chinese Universities) 2012年第4期27卷 462-474页

作者： WANG Lin-feng ZHU Yue-ping School of Science Nantong UniversityNantong 226007China

Let M be an n-dimensional complete noncompact Riemannian manifold with sectional curvature bounded from below, dμ = e^h（x） dV（x） the weighted measure and △μ,p the weighted p-Laplacian. In this paper we consider the non-linear elliptic equation △μ,pu=-λμ,p｜u｜^p-2ufor p ∈ （1, 2）. We derive a sharp gradient estimate for positive smooth solutions of this equation. As applications, we get a Harnack inequality and a Liouville type theorem..

关键词： weighted p-Laplacian gradient estimate Harnack inequality Liouville theorem.

Exceptional Performance of 3D Additive Manufactured NiFe Phosphite Oxyhydroxide Hollow Tubular Lattice Plastic Electrode for Large-Current-Density Water Oxidization

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Energy & Environmental Materials 2024年第6期7卷 262-273页

作者： Liping Ding Lin Zhang Gaoyuan Li Shuyan Chen Han Yan Haibiao Tu Jianmin Su Qi Li Yanfeng Tang Yanqing Wang School of Chemistry and Chemical Engineering Nantong UniversityNantong 226007China

In this article,we report a 3D NiFe phosphite oxyhydroxide plastic electrode using high-resolution digital light processing(DLP)3D-printing technology via induced chemical deposition *** as-prepared 3D plastic electrode exhibits no template requirement,freedom design,low-cost,robust,anticorrosion,lightweight,and micro-nano porous *** can be drawn to the conclusion that highly oriented open-porous 3D geometry structure will be beneficial for improving surface catalytic active area,wetting performance,and reaction–diffusion dynamics of plastic electrodes for oxygen evolution reaction(OER)catalysis *** functional theory(DFT)calculation interprets the origin of high activity of NiFe(PO_(3))O(OH)and demonstrates that the implantation of the–PO_(3)can effectively bind the 3d orbital of Ni in NiFe(PO_(3))O(OH),lead to the weak adsorption of intermediate,make electron more active to improve the conductivity,thereby lowing the transform free energy of*O to**** water oxidization performance of as-prepared 3D NiFe(PO_(3))O(OH)hollow tubular(HT)lattice plastic electrode has almost reached the state-of-the-art level compared with the as-reported large-current-density catalysts or 3D additive manufactured plastic/metal-based electrodes,especially for high current OER *** work breaks through the bottleneck that plagues the performance improvement of low-cost high-current electrodes.

关键词： 3D plastic electrode 3D printing induced chemical deposition largecurrent-density water oxidization NiFe phosphite oxyhydroxide

Substrate Selectivity of Glycerol-3-phosphate Acyl Transferase in Rice

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Journal of Integrative Plant Biology 2009年第11期51卷 1040-1049页

作者： Su-Qin Zhu Hua Zhao Rong Zhou Ben-Hua Ji Xiao-Yan Dan School of Life Sciences Nantong University Nantong 226007 China

Substrate selectivity of glycerol-3-phosphate acyltransferase （EC 2. 3. 1. 15） of rice （Oryza sativa L.） was explored in a comparative study of acyltransferases from seven plant species. In vitro labeling of acyl carrier protein （ACP） with ^14C or 3H showed that acyltransferase from chill-sensitive plants, such as rice that uses either oleic （18：1） or palmitic acid （16：0） as acyl donor at comparable rates, displays lower selectivity than the enzyme from chill-resistant plants, such as spinach, which preferentially uses oleic acid （18：1） rather than palmitic acid （16：0） as an acyl donor. This may be a result of the size and character of the substrate-binding pocket of acyltransferase. Homology modeling and protein structure-based sequence alignment of acyltransferases revealed that proteins from either chill-sensitive or chill-tolerant plants shared a highly conserved domain containing the proposed substrate-binding pocket. However, the aligned residues surrounding the substrate-binding pocket are highly heterogeneous and may have an influence mainly on the size of the substrate binding pockets of acyltransferases. The substrate selectivity of acyltransferase of rice can be improved by enlarging the substrate-binding pocket using molecular biological methods.

关键词： glycerol-3-phosphate acyt transferase homology modeling rice substrate selectivity.

Oxidative Stressand Antioxidant Responses in Young Leaves of Mulberry Plants Grown Under Nitrogen, Phosphorus or Potassium Deficiency

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Journal of Integrative Plant Biology 2007年第3期49卷 313-322页

作者： Rajesh Kumar Tewari Praveen Kumar Parma Nand Sharma Department of Botany University of LucknowLucknow226007India

The aim of this study was to associate the generation of reactive oxygen species （ROS） with Induced antloxidant responses and disturbed cellular redox environment in the nitrogen-（N）, phosphorus-（P）, or potassium-（K） deftcient mulberry （Morus alba L. var. Kanva-2） plants. The indicators of oxidative stress and cellular redox environment and antioxldant defense-related parameters were analyzed. Oeficlency of N, P or K suppressed growth, accelerated senescence, and decreased concentrations of chloroplastic pigments and glutathione. Lipid peroxidation and activities of superoxide dismutase, ascorbate peroxidase and glutathione reductase were also increased in these N, P, or K deprived plants. Concentration of hydrogen peroxide Increased in plants deficient in N or P. Oeficlency of N or P particularly altered the cellular redox environment as indicated by changes in the redox couples, namely ascorbic acid/total ascorbate decreased in P-, glutathione sulfydryl/total glutathione decreased in N-, and Increased in P-deficient plants. Activity staining of native gels for superoxide dismutase revealed Increased activity as Indicated by Increased intensity of bands, and induction of few new isoforms in P- and K-deficient plants. Oifferences in the patterns of superoxide dismutase isoforms and redox status （ascorbic acid/total ascorbate and glutathlone sulfydryl/total glutathione） Indicate that N-, P-, or K-deficiency altered antioxidant responses to varying extents in mulberry plants.

关键词： antioxidants potassium-deficiency lipid peroxidation Morus alba mulberry nitrogen-deficiency oxidative stress phosphorus-deficiency reactive oxygen species

AREA FUNCTIONS ON HARDY SPACES ASSOCIATED TO SCHRDINGER OPERATORS

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Acta Mathematica Scientia 2003年第4期23卷 521-530页

作者：朱月萍 Department of Mathematics Nantong Teachers' College Nantong 226007 China

In this paper, the author gives a characterization of atomic Hardy spaces associated to Schrodinger operators by using area functions, and hence gets the dual spaces of atomic Hardy spaces.

关键词： Square function area function Hardy spaces Schrodinger operators

Littlewood-Paley and Pseudo-Differential Operators on Herz-type Spaces over Vilenkin Groups

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Acta Mathematica Sinica,English Series 2004年第5期20卷 779-784页

作者： YuePingZHU DepartmentofMathematics NantongUniversityNantong226007P.R.China

In this paper,we mainly investigate the boundedness of Littlewood-Paley functions and pseudo-differential operators on weighted Herz-type Hardy spaces over locally compact Vilenkin groups.

关键词： Vilenkin groups Herz-type Hardy spaces Littlewood-Paley function