摘要：
The anomalous scaling of factorial moments with continuously diminishing scale is studied using a random cascading model. It is shown that the model currently used have the property of anomalous scaling only for descrete values of elementary cell size. A revised model is proposed which can give good scaling property also for continuously varying scale. It turns out that the strip integral has good scaling property provided the integral regions are chosen correctly, and that this property is insensitive to the concrete way of self-similar subdivision of phase space in the models.
作者机构：
[Xu, ZH; Wei, ZM; Li, XB] CHINESE ACAD SCI,SHANGHAI INST PLANT PHYSIOL,SHANGHAI 200032,PEOPLES R CHINA.;[Li, XB] CENT CHINA NORMAL UNIV,DEPT BIOL,WUHAN 430070,PEOPLES R CHINA.
通讯机构：
[Li, XB] C;CENT CHINA NORMAL UNIV,DEPT BIOL,WUHAN 430070,PEOPLES R CHINA.
摘要：
The stability of an isothermal magnetized accretion disk is examined both analytically and numerically. We find that acoustic instabilities exist not only in purely viscous disks, but also in disks where viscosity and magnetic field coexist. The inclusion of magnetic field does not change the local stability properties very much, apart from altering the numerical values of the growth rates. If the growth rate is required to be greater than the escape rate, the acoustic modes are unstable only in the long wavelength limit and when some viscosity and magnetic field parameters are larger than certain values. These results are unchanged if a different viscosity prescription is adopted.
作者机构：
[WU, YF; ZHANG, Y; LIU, LS] Institute of Particle Physics, Hua-Zhong Normal University, Wuhan 430070, China
通讯机构：
[WU, YF] H;HUA ZHONG NORMAL UNIV,INST PARTICLE PHYS,WUHAN 430070,PEOPLES R CHINA.
摘要：
The experimental results on factorial moments (FM’s) in different phase space dimensions are examined in some detail. The general trends of one- and three-dimensional FM’s and the complexity of the two-dimensional ones are pointed out. It is shown that all the complicated patterns of FM’s in different dimensions can be understood comprehensively under the assumption of self-affine fluctuations in 3D, which means that anomalous scaling of FM’s may exist in multiparticle final states provided the shrinkage of phase space is done correctly according to the anisotropic property of multiplicity fluctuations.
期刊：
Astrophysics and Space Science,1995年232(2):293-306 ISSN：0004-640X
通讯作者：
Yang, LT
作者机构：
ACAD SINICA,BEIJING ASTRON OBSERV,BEIJING 100080,PEOPLES R CHINA.;GEZHOUBA INST WATER ELECT POWER,DEPT FUNDAMENTAL SCI,YICHANG,PEOPLES R CHINA.;[Yang, LT] HUAZHONG NORMAL UNIV,INST ASTROPHYS,WUHAN 430070,PEOPLES R CHINA.
通讯机构：
[Yang, LT] H;HUAZHONG NORMAL UNIV,INST ASTROPHYS,WUHAN 430070,PEOPLES R CHINA.
关键词：
Viscosity;Magnetic Field;Time Variation;Mach Number;Accretion Disk
作者机构：
Institute of Particle Physics;Hua-Zhong Normal University;Wuhan;PRC
通讯机构：
[DENG, SH] H;HUA ZHONG NORMAL UNIV,INST PARTICLE PHYS,WUHAN 430070,PEOPLES R CHINA.
关键词：
SOLITON;BAG;MODEL;SOLITON;solution;DECONFINEMENT;phase;transition.;SOLITON BAG MODEL;SOLITON SOLUTION;DECONFINEMENT PHASE TRANSITION
摘要：
The non-topological soliton bag model of Friedberg and Lee (F-L model), whichis developed by Goldflam and Wilets and others, has been much successful indescribing phenomenologically the static properties of hadrons and their behavior atlow energy. Particularly, with the finding of the numerical soliton solution for thespecial case of temperature being zero and bag constant B=0~+, the model affordsus a very intuitive physical explanation of the color confinement in QCD theory.For other different values of B, especially for non-trivial temperature, someinvestigation on the deconfinement transition has been made in Ref.[3], etc. byanalyzing the variation condition in which soliton solutions exist, but it remains to besettled to find the concrete solutions. In this note, we will solve directly the soliton
摘要：
The electronic structures of small sulfur clusters, S2– S12, are calculated using the ab initio self-consistent discrete variational local-density-functional method, and the calculated ionization potential curve is in good agreement with that from experiment in the range from S2 to S8, and the calculated ionization potentials of clusters from S9 to S12 are reliably predicted where measurements are lacking. We suggest that the different mixtures of atomic orbitals 3s and 3p on the highest occupied molecular orbitals for different clusters are related to the change of ionization potential with the cluster size. In addition, we point out that the two sulfur dimers in S4 are bound by the van der Waals force.
期刊：
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B,1994年12(3):2171-2174 ISSN：2166-2746
作者机构：
UNIV SCI & TECHNOL CHINA,DEPT PHYS,HEFEI 230026,PEOPLES R CHINA.;UNIV SCI & TECHNOL CHINA,STRUCT RES LAB,HEFFEI 230026,PEOPLES R CHINA.;HUAZHONG NORMAL UNIV,DEPT PHYS,WUHAN 430070,PEOPLES R CHINA.;[LI, YP; HUANG, XT; ZHANG, HF; HUANG, WH] Department of Physics and the Structural Research Lab., University of Science and Technology of China, Hefei, 230026, P. R. China
摘要：
By the method of exciton dynamics, direct formulas were deduced about the relationship between the tunneling current and the position of the tip for both single and dimer adsorbates when the purely coherent memory function is independent of time, and the application environment for these practical models were discussed. In addition, they were also used to investigate the effect of the substrate’s thickness on the scanning tunneling microscope (STM) images and interpret the STM images of Au(110) for both 2×1 and 3×1 reconstructed surfaces. The results are in good agreement with experiments and other theory.
摘要：
The stability of a polytropic accretion disc is studied analytically, taking radial viscosity into account. The method that was previously suggested for studying the stability of a polytropic disc is improved, and some instability criteria in different parts of the disc are obtained. We find that the radial viscosity has a stabilizing influence on the inertial acoustic modes, and such influence is more evident in the outer disc than in the inner disc. When radial viscosity is considered, the inertial acoustic modes become stable if the perturbation wavelength is shorter than a critical value, which is estimated to be about 9H in the outer disc and 4H in the inner disc, where H is defined in equation (2.9). The growth rate of the acoustic mode in the inner disc is much larger than that in the outer disc, where the growth rate of the acoustic mode is nearly zero. If the growth rate is required to be greater than the escape rate, the acoustic modes are pulsationally unstable only for long-wavelength perturbations in the inner part of disc, provided that the viscosity parameter alpha is larger than 0.2.
作者机构：
HUANGGANG TEACHERS COLL,DEPT PHYS,HUANGGANG 436100,PEOPLES R CHINA.;CHINESE INST ATOM ENERGY,BEIJING 102413,PEOPLES R CHINA.;[ZHANG, YH] HUAZHONG NORMAL UNIV,INST PARTICLE PHYS,WUHAN 430070,PEOPLES R CHINA.
通讯机构：
[ZHANG, YH] H;HUAZHONG NORMAL UNIV,INST PARTICLE PHYS,WUHAN 430070,PEOPLES R CHINA.
摘要：
<正> The random cascading model is studied in some detail. The dependence of intermittency indices in this model on the elementary partition number λ is discussed, and a method for calculating the moments in the case of partition number M being unequal to the integer power of λ is proposed. It is found that the model with a single elementary partition number λ does not fulfil the requirement of fractality that anomalous exponential law should be valid for any integer M. Randomly taking a number of λs can improve the situation notably.A model with noninteger λ is also established for-future application.
期刊：
Inorganic and Nano-Metal Chemistry,1994年24(9):1453-1460 ISSN：2470-1556
通讯作者：
WANG, Z
作者机构：
[WANG, Z; ZHU, XD; HUANG, QH; LE, ZF; WU, ZS; YEN, ZH] TONGJI MED UNIV,DEPT MICROBIOL,HUBEI 430030,PEOPLES R CHINA.;[WANG, Z] HUAZHONG NORMAL UNIV,DEPT CHEM,HUBEI 430070,PEOPLES R CHINA.
通讯机构：
[WANG, Z] H;HUAZHONG NORMAL UNIV,DEPT CHEM,HUBEI 430070,PEOPLES R CHINA.
摘要：
Abstract Copper (II), zinc(II), cobalt (II) and nickel (II) complexes with the Schiff base derived from 2—chlorobenzaldehyde and glycine were synthesized. These compounds have been characterized by elemental analyses, conductivity measurements, infra—red and electronic spectra. The Schiff base ligand has been further characterized by 1H NMR. The results suggest that the Schiff base acts as a bidentate ligand which bonds to metal ions through the imino nitrogen and carboxylate oxygen. The Schiff base is a 1:1 electrolyte but all the complexes are non—electrolytes. The results of preliminary tests of antifungal activity of all the compounds show that the complexes strongly inhibit the fungi gypseum, floccosum, canis and rubrum. Referee I: K. Moedritzer Referee II: G. R. Choppin
作者机构：
UNIV MISSOURI, DIV BIOL SCI, COLUMBIA, MO 65211 USA.;CENT CHINA NORMAL UNIV, DEPT BIOL, WUHAN, PEOPLES R CHINA.;[CHEN, QC; JEN, PHS] Division of Biological Sciences, University of Missouri-Columbia, Columbia, MO 65211, United States
通讯机构：
[Jen, P.H.-S.] D;Division of Biological Sciences, University of Missouri-Columbia, Columbia, MO 65211, United States
摘要：
The first rapidity density distributions from relativistic collisions between truly heavy nuclei are presented. The distributions are compared with expectations from a linear extrapolation of results obtained from collisions with lighter nuclei. Fluctuations are essentially described by a simple scenario with stochastic emission.
摘要：
An analytical study is performed to examine the influence of causally limited viscosity on the stability properties of an isothermal accretion disk. We find that the stability and propagating properties of three kinds of oscillation mode in the disk are different from those in the conventional viscosity case, if the viscosity is modified to follow causality. The viscous mode is still stable throughout the disk, but it is no longer a standing wave. It propagates inward with a damping rate proportional to the viscosity parameter α. The two inertial-acoustic modes are no longer complex conjugates of one another. Their stability and propagating properties are different. The outward-moving mode is unstable throughout the disk, while the inward-moving mode is unstable in the outer disk but stable in the inner disk when the Mach number of accretion flow is larger than a critical value. We estimate that this critical Mach number is ∼0.4 if a revised diffusion-type viscosity is adopted and ∼0.25 if a revised α-viscosity is adopted.
