检索结果-南通市图书馆

THE　SCALE　METHOD　OF　INNER－SPHERE　REORGANIZATION　ENERGY　OF　HYDRATED　IONS　VIA　ION－DIPOLE　CAPTUR　FORCE　FORCE　FIELD　POTENTIAL

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Chinese Chemical Letters 1994年第3期5卷 225-226页

作者： Yu Xiang BU Xin Yu SONG(department of chemistry, qufu normal university. qufu, 273165)

Based on a simple improved model of reorganization phenomenon and ion-dipole fore. field potential, a new formalism of inner-spher reorganization energy is presented Calculation agrees well with experimental spectrosc... 详细信息

关键词： REORGANIZATION ENERGY SPHERE INNER HYDRATED OF VIA CAPTUR

On-line matrix addition for detecting aerosol particles

在线全文

学校读者我要写书评

暂无评论

Science china.Physics,Mechanics & Astronomy) 2006年第2期49卷 187-194页

作者： ZHOU Liuzhu1,2, ZHU Yuan1, GUO Xiaoyong1, ZHAO Wenwu1, ZHENG Hai-yang1, Gu Xuejun1, FANG Li1 & ZHANG Weijun1 1. Lab of Environmental Spectroscopy, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, china.2. qufu normal university, qufu 273165, china 1. Lab of Environmental Spectroscopy Anhui Institute of Optics and Fine Mechanics Chinese Academy of Sciences Hefei 230031 China 2. qufu normal university Qufu 273165 China

Single aerosol particles were measured by matrix-assisted laser desorp-tion/ionization (MALDI) with an aerosol time-of-flight mass spectrometer (ATOFMS). The inlet to the ATOFMS was coupled with an evaporation/condensation flow cell that allowed matrix addition by condensation onto the particles. The coated particles entered the ion source through three-stage differentially pumped capillary inlet and were then ionized by a focused 266 nm Nd:YAG laser. The mass spectra and aerodynamic size of the single particles can be obtained simultaneously. The on-line matrix addition technique makes it possible to identify biological aerosols in real-time.

关键词： ATOFMS evaporation/condensation MALDI.

Star-Chromatic Numbers of Planar Graphs

在线全文

学校读者我要写书评

暂无评论

Systems Science and Systems Engineering 1998年第2期8卷 63-66页

作者： WANG Yijiu Institute of Operations Research,qufu normal university,273165

The concept of the star chromatic number of a graph was introduced by *** in ,which is a natural generalizition of the chromatic number of a *** this paper,we investigate the star chromatic number of a family of planar *** precisely, a family of planar graphs whose star chromatic numbers are between 2 and 3 are disscused,which answers the open problem posed by Vince in .

关键词： star chromatic number planar graph cycle star graph

ON THE VARIATIONS OF G_2

在线全文

学校读者我要写书评

暂无评论

Chinese Annals of Mathematics,Series B 2003年第3期24卷 387-394页

作者： LIU DONG LIN LEI department of Mathematics, East china.normal university, Shanghai 200062, china. department of Mathematics, East china.normal university, Shanghai 200062, china. department of Mathematics East China Normal University Shanghai 200062 China

In [1], Shen Guangyu constructed several classes of new simple Lie algebras of characteristic 2, which are called the variations of G2. In this paper, the authors investigate their derivation algebras. It is shown that G2 and its variations all possess unique nondegenerate associative forms. The authors also find some nonsingular derivations of ViG for i = 3,4. 5, 6, and thereby construct some left-symmetric structures on Vi G for i = 3,4.5,6. Some errors about the variations of sl(3, F) in [1] are corrected.

关键词： Variation Derivation Associative form Left-symmetric structure

A generalized Weyl-Wigner quantization scheme unifying P-Q and Q-P ordering and Weyl ordering of operators

在线全文

学校读者我要写书评

暂无评论

Chinese Physics B 2012年第6期21卷 207-212页

作者：王继锁范洪义孟祥国 shandong Provincial Key Laboratory of Laser Polarization and Information Technology College of Physics and EngineeringQufu Normal University department of Physics Liaocheng University department of Physics Shanghai Jiao Tong University

By extending the usual Wigner operator to the s-parameterized one as 1/4.2 integral （dyduexp [iu（q-Q）＋iy（p-P）＋is/2yu]） from n=- ∞ to ∞ with s beng a,real parameter,we propose a generalized Weyl quantization scheme which accompanies a new generalized s-parameterized ordering *** rule recovers P-Q ordering,Q-P ordering,and Weyl ordering of operators in s = 1,1,0 *** it differs from the Cahill-Glaubers’ ordering rule which unifies normal ordering,antinormal ordering,and Weyl *** also show that in this scheme the s-parameter plays the role of correlation between two quadratures Q and *** formula that can rearrange a given operator into its new s-parameterized ordering is presented.

关键词： generalized Wigner operator generalized operator ordering rule bivariate normal dis-tribution

ON-LINE SCHEDULING OF UNIT TIME JOBS WITH REJECTION ON UNIFORM MACHINES

在线全文

学校读者我要写书评

暂无评论

Journal of Systems Science & Complexity 2008年第1期21卷 114-118页

作者： Shoupeng LIU Yuzhong ZHANG Binzhou Medical university Yantai 264003 China. ZHANG Institute of Operations Research Qufu Normal University Rizhao 276826 China.

The authors consider the problem of on-line scheduling of unit execution time jobs on uniform machines with rejection penalty. The jobs arrive one by one and can be either accepted and scheduled, or be rejected. The objective is to minimize the total completion time of the accepted jobs and the total penalty of the rejection jobs. The authors propose an on-line algorithm and prove that the competitive ratio is 1/2 （2 W √3） ≈ 1.86602.

关键词： Competitive ratio on-line scheduling uniform machine.

Study on sea water intrusion into palaeochannels on south coastal plain of the Laizhou Bay by the Bohai Sea

在线全文

学校读者我要写书评

暂无评论

Acta Oceanologica Sinica 2003年第1期22卷 69-74页

作者： Han Mei Geography department, shandong normal university, Jinan 250014. {4. shandong normal Univ Dept Geog Jinan 250014 Peoples R China

The palaeochannel evolution in the study region is divided into four stages by such methods as 14. dating. Sea water intrusion through palaeochannels has been studied as a focal point. Palaeochannels are the main passageways through which the sea water intrudes at a higher speed, through many means and in a changeable dynamic state.

关键词： Palaeochannel sea water intrusion south coastal plain of Laizhou Bay

ON ABELIAN AUTOMORPHISM GROUPS OF SURFACES OF GENERAL TYPE

在线全文

学校读者我要写书评

暂无评论

Chinese Annals of Mathematics,Series B 1996年第1期17卷 43-52页

作者： CAI JINXING(department of Mathematics, East china.normal university, Shanghai 200062, china.) E china.normal UNIV DEPT MATHSHANGHAI 200062PEOPLES R CHINA

It is proved that for a complex minimal smooth projective surface S of general type, its abelian automorphism group is of order≤36k2s+24. provided x(os)≥8, where Ks is the canonical divisor of S, and X(Os) the Euler... 详细信息

关键词： Projective surface Automorphism group Canonical divisor

A Modified Heuristic for Premptive Parallel Machine Scheduling with Batch Set-up Times

在线全文

学校读者我要写书评

暂无评论

Systems Science and Systems Engineering 1997年第3期7卷 102-106页

作者： ZHANG Yuzhong MA Kejie Institute of Operations Research qufu normal university, qufu 273165

A new heuristic for preemptive parallel machine scheduling with batch set up time is provided by modifying some recent algorithms, we prove that it has a better asymptotic performance in some sence.

关键词： heuristic set up asymptotic performance