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Wet-chemical synthesis and characteristics of Au nanoshell

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Science china Chemistry 2005年第5期48卷 431-435页

作者： LIU Zhongxin1,2, SONG Hongwei1, YU Lixin1,2, YANG Linmei1,2 & PAN Guohui1,2 1. Key Laboratory of Excited State Physics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 13.03., china 2. Graduate school of the Chinese Academy of Sciences, Beijing 10003., china Key Laboratory of Excited State Physics Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences Changchun China Graduate school of the Chinese Academy of Sciences Beijing China

Gold nanoshells were prepared by an easy wet-chemical method, with Ag nanoparticles used as the templates. Transmission electron microscopy (TEM) indicated that the shells were sphere in shape, the size was homogenous, being about 20 nm, and no hard ag-glomerates were observed. The plasma resonance absorption of gold was tuned from visible to near-infrared (NIR) with the increased volume of HAuCl4. The temperature grads (?T) of the gold nanoshell hydrosol under the exposure of an 808-nm optical fiber laser with different power den-sities were measured. The highest ?T was 3.℃ (5 W/cm2, irradiation area was 2 cm2). This kind of gold nanoshell hydrosol is a promising material to be used in biomedicine such as photo-thermal cancer therapy, and its special photothermal convert property will photothermally trigger drug release.

关键词： wet-chemical synthesis, Au, nanoshell, NIR absorption, photothermal conversion.

A NEW CHARACTERIZATION OF THE CLOSEDNESS OF THE SUM OF TWO SUBSPACES

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Acta Mathematica Scientia 2008年第1期28卷 17-23页

作者：邓春源杜鸿科 school of Mathematics Science South China Normal University College of Mathematics and Information Science Shaanxi Normal University

In this article, a new characterization of the closedness of the sum of two closed subspaces of a Hilbert space is established.

关键词： Subspace projection sum of two closed subspaces

STAGED PROGRESSION MODEL FOR EPIDEMIC SPREAD ON HOMOGENEOUS AND HETEROGENEOUS NETWORKS

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Journal of Systems Science & Complexity 2011年第4期24卷 619-630页

作者： Haifeng ZHANG Michael SMALL Xinchu FU school of Mathematical Sciences Anhui University Hefei 230039 China. Department of Electronic and Information Engineering Hong Kong Polytechnic University Hung HornKowloon Hong Kong China. Department of Mathematics Shanghai University Shanghai 200444 China.

在这份报纸，与同类、异构的网络上的上演前进模型一起的流行传播被学习。首先，简单上演前进模型的流行阀值被给。然后，有出生和死亡的上演前进模型也被考虑。传染性是节点度的非线性的功能的盒子也被讨论。最后，分析结果被数字模拟... 详细信息

在这份报纸，与同类、异构的网络上的上演前进模型一起的流行传播被学习。首先，简单上演前进模型的流行阀值被给。然后，有出生和死亡的上演前进模型也被考虑。传染性是节点度的非线性的功能的盒子也被讨论。最后，分析结果被数字模拟验证。

关键词：扩散模型异构网络疫情传播同构非线性函数数值模拟传染性

THE EXISTENCE OF NONTRIVIAL SOLUTIONS TO A SEMILINEAR ELLIPTIC SYSTEM ON R N WITHOUT THE AMBROSETTI-RABINOWITZ CONDITION

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Acta Mathematica Scientia 2010年第6期30卷 1917-1936页

作者：李工宝王春花 school of Mathematics and Statistics Huazhong Normal University

In this paper, we prove the existence of at least one positive solution pair （u, v）∈ H1（RN） × H1（RN） to the following semilinear elliptic system {-△u＋u=f（x,v）,x∈RN,-△u＋u=g（x,v）,x∈RN （0.1）,by using a linking theorem and the concentration-compactness principle. The main conditions we imposed on the nonnegative functions f, g ∈C0（RN× R1） are that, f（x, t） and g（x, t） are superlinear at t = 0 as well as at t =＋∞, that f and g are subcritical in t and satisfy a kind of monotonic conditions. We mention that we do not assume that f or g satisfies the Ambrosetti-Rabinowitz condition as usual. Our main result can be viewed as an extension to a recent result of Miyagaki and Souto [J. Diff. Equ. 245（2008）, 3.28-3.3.] concerning the existence of a positive solution to the semilinear elliptic boundary value problem {-△u＋u=f（x,u）,x∈Ω,u∈H0^1（Ω） where Ω ∩→RN is bounded and a result of Li and Yang [G. Li and J. Yang： Communications in P.D.E. Vol. 29（2004） Nos.5＆ ***.925-954, 2004] concerning （0.1） when f and g are asymptotically linear.

关键词： existence nontrivial solution semilinear elliptic system without the (AR) condition

A TWO-PHASE HEURISTIC ALGORITHM TO SOLVE THE LARGE-SCALE VEHICLE ROUTING PROBLEM

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A TWO-PHASE HEURISTIC ALGORITHM TO SOLVE THE LARGE-SCALE VEH...

职业弹性对工作绩效和职业满意度影响的实证研究

2006年中国机械工程学会年会暨中国工程院机械与运载工程学部首届年会

作者： WU Zengyuan*, WU Xiaobo*, FANG Gang*, WU Bei *school of management, Zhejiang University, Hangzhou 3.0058, china Zhejiang Gongshang University, Hangzhou 3.003., china

During the past several decades, many researchers in the world have been studying Vehicle Routing Problem (VRP), and many kinds of solutions have been presented. It is very important to select an appr

关键词： Vehicle routing problem (VRP) two-phase algorithm nearest neighbour heuristic algorithm insert method.

来源： cnki会议评论

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心理科学 2011年第3期34卷 680-685页

作者：李霞张伶谢晋宇南开大学周恩来政府管理学院天津300071 南开大学商学院天津300071 复旦大学管理学院上海200433

职业弹性是指个体灵活应对变化的职业环境甚至是逆境的职业能力。在控制无关变量(性别、学历、企业性质、转换职业、转换单位、工龄、职务级别)及同一方法偏差的基础上,本文考察了职业弹性的不同维度对其后效变量的影响。通过对某信息... 详细信息

职业弹性是指个体灵活应对变化的职业环境甚至是逆境的职业能力。在控制无关变量(性别、学历、企业性质、转换职业、转换单位、工龄、职务级别)及同一方法偏差的基础上,本文考察了职业弹性的不同维度对其后效变量的影响。通过对某信息集团下属的59家电子相关企业中的3.4位管理人员的问卷调查,结果表明职业弹性会影响个体的工作绩效和职业满意度,管理者的职业弹性越高,其工作绩效越高、职业满意度也越高。

关键词：职业弹性工作绩效职业满意度

management Strategies for Ecocities of Sustainable Development

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Chinese Journal of Population,Resources and Environment 2004年第1期2卷 61-63页

作者： Zhao Linan, Yang Bolin, Xu Mingzhimanagement school, Xi’an Jiaotong University, Xi’an 710049, china Shandong Institute of Architecture and Engineering, ]inan 250014, china management school Xi’an jiaotong University Xi’an 710049 China Shandong Institute of Architecture and Engineering jinan 250014 China

Building ecocities becomes an objective requirement for sustainable development. This article discusses the relationship between sustainable development and sustainable urban development. On the basis of discussing the sigificance of sustainable urban development and that of an eco-city from different perspectives, it suggests several management strategies for developing an eco-city, a desirable sustainable urban model.

关键词： sustainable development eco-city management strategy

Fabrication and properties of binder for powder extrusion molding

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Rare Metals 2003年第2期22卷 98-102页

作者： ZHOUJicheng HUANGBaiyun schoolofPhysicsScienceandTechnology CentralSouthUniversityChangsha410083China StateKeyLaboratoryforPowderMetallurgy CentralSouthUniversityChangsha410083China

By optimizing formulation and fabrication methods, a new binder forplasticizing powder extrusion molding of hard metal, with excellent integrated properties anduniform distribution characters, has been developed. Thermal debonding mechanism and the extrudingtheological behaviours have been studied. The technology of fabrication of binder and thermaldebonding process have also been investigated. Using the novel binder, the hard-metalextrusion-molding rods with diameter up to 25mm, have been manufactured.

关键词： powder metallurgy binder powder extrusion molding thermal debonding rheology hard metal

CRITICAL EXPONENTS OF EVOLUTIONARY p-LAPLACIAN WITH INTERIOR AND BOUNDARY SOURCES

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Acta Mathematica Scientia 2011年第3期31卷 778-790页

作者：尹景学金春花杨莹 school of Mathematical sciences South china Normal University Department of Mathematics Jilin University

This paper is concerned with the evolutionary p-Laplacian with interior and boundary *** critical exponents for the nonlinear sources are determined.

关键词： critical exponent p-Laplacian global existence blow-up