作者机构：
[Li, WP] Cent China Normal Univ, Dept Chem, Wuhan 430079, Hubei, Peoples R China.;Tibet Autonomous Reg Solar Energy Res Inst, Lhasa 850001, Peoples R China.
通讯机构：
[Li, WP] C;Cent China Normal Univ, Dept Chem, Wuhan 430079, Hubei, Peoples R China.
摘要：
A series of bis(n-alkylammonium)tetrachlorometallates (II) (n-CnH2n+1NH3)(2)MCl4 (CnM, where n=10, 12, 16 and M=Cu, Zn, Hg, Mn, Co, Ni) were synthesized and elementary analysis carried out. Their solid-solid phase transitions were studied using DSC and IR. Transition temperatures of CnMn, CnCo, CnZn and CnCu lie between 28 and 86 kJ mol(-1). They are potential thermal-energy storage materials. CnNi, CnCd, CnHg are unsuitable for thermal storage use, because CnNi has poor thermal stability; moreover, CnCd and CnHg in the low temperature has lower latent heat for these application. (C) 1999 Published by Elsevier Science B.V. All rights reserved.
作者机构：
[Wang, GS; Deng, YB] Huazhong Normal Univ, Dept Math, Wuhan 430079, Peoples R China.
通讯机构：
[Wang, GS] H;Huazhong Normal Univ, Dept Math, Wuhan 430079, Peoples R China.
关键词：
minimal positive solution;optimal control
摘要：
Some optimal control problems for the semilinear elliptic equation with critical exponent are presented. The semilinear elliptic equation in R<sup>N</sup> considered is as follows: -Δy+y = y<sup>2*</sup>+λf(x), xΕR<sup>N</sup>, N≥3 yΕH<sup>1</sup>(R<sup>N</sup>), y>0 in R<sup>N</sup>. The break of the uniqueness and the existence of the solutions makes the corresponding optimal control problems much more complicated since every control may correspond to more than one states or no state. This gap is filled by introducing the minimal positive solutions y<inf>λ</inf> as the states while the parameters λas the controls.
期刊：
Nuclear Physics B - Proceedings Supplements,1999年71(1-3):341-345 ISSN：0920-5632
通讯作者：
Liu, LS
作者机构：
[Liu, LS] Huazhong Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China.
通讯机构：
[Liu, LS] H;Huazhong Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China.
会议名称：
XXVIIth International Symposium on Multiparticle Dynamics
会议时间：
SEP 08-12, 1997
会议地点：
INFN, NATL LABS, FRASCATI, ITALY
会议主办单位：
Huazhong Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China.
摘要：
The meaning of single event analysis is discussed. Some examples are listed. The special interest in 2-D factorial moment analysis is explained in some detail. The single event 2-D factorial moment analysis of 11 A GeV central Au-Emulsion collision data from EMU01 is given.
期刊：
Chinese Astronomy and Astrophysics,1999年23(1):36-41 ISSN：0275-1062
通讯作者：
Lu, Y
作者机构：
[Lu, Y] Huazhong Normal Univ, Dept Phys, Wuhan 430079, Peoples R China.;Huazhong Normal Univ, Inst Astrophys, Wuhan 430079, Peoples R China.;Huazhong Univ Sci & Technol, Dept Phys, Wuhan 430071, Peoples R China.
通讯机构：
[Lu, Y] H;Huazhong Normal Univ, Dept Phys, Wuhan 430079, Peoples R China.
关键词：
accretion;accretion disk;MHD instability
摘要：
The radial oscillation instability of both magnetic-equipartion and magnetic-conservation models of accretion disks with self-gravitation is examined. Our results show that there are three modes in the disk. The viscous mode is always stable, the magneto-acoustic mode is unstable, and the neutral mode tends to be stable in long wavelength region and unstable in short wavelength region. The effects of self-gravitation for the three modes are similar in both models, but the effects of the magnetic field are opposite. These results suggests that the magnetic-equipartition model is the best one for explaining the time variations of X-ray stars and active galactic nuclei.
期刊：
Japan Journal of Industrial and Applied Mathematics,1999年16(3):467-487 ISSN：0916-7005
通讯作者：
Ying, LA
作者机构：
[Ying, LA] Peking Univ, Inst Math, Beijing 100871, Peoples R China.;City Univ Hong Kong, Dept Math, Hong Kong, Hong Kong, Peoples R China.;Cent China Normal Univ, Dept Math, Wuhan, Peoples R China.
摘要：
We prove that the strong detonation travelling waves for a viscous combustion model are nonlinearly stable, that is, for a given perturbation of a travelling wave, the solution converges to a shifted travelling wave asymptotically as t --> infinity. The rate of convergence is obtained. This work is a continuation of a previous work by done T.P. Liu and the first author in [7].
期刊：
Il Nuovo Cimento A,1999年112(8):801-808 ISSN：1124-1861
通讯作者：
Li, W
作者机构：
[Cai, X; Li, W] Hua Zhong Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China.
通讯机构：
[Li, W] H;Hua Zhong Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China.
摘要：
Quark rotation asymmetry is proposed in calculating baryon magnetic moments. After taking into account interactions enforced on constituent quarks, assumed to be linear and Coulomb potentials, respectively, and the quark rotation asymmetry, we fit the theoretical values, based on two more hypotheses and several other reasonable assumptions, of baryon magnetic moments with those from experiments. The good fitting results show the necessity of the consideration of quark rotation asymmetry within baryon.
期刊：
ADVANCED TOPICS IN BIOMATHEMATICS,1998年:125-129
通讯作者：
Liang, ZJ
作者机构：
[Liang, ZJ] Cent China Normal Univ, Dept Math, Wuhan 430079, Peoples R China.
通讯机构：
[Liang, ZJ] C;Cent China Normal Univ, Dept Math, Wuhan 430079, Peoples R China.
摘要：
The main purpose of this paper is to give several criteria on the existence of travelling wave solutions of some reaction diffusion models in biomathematics.
摘要：
Abstract The Schiff base N-salicylaldehyde-D-glucosamine, H2L1, its complexes with Co(III), Cu(II) and Zn(II), as well as the Co(III), Cu(II), Zn(II) complexes of N-O-vanillin-D-glucosamine, H2L2, have been synthesized. These compounds have been characterized on the basis of their elemental analyses, conductivity measurements, infrared, UV-visible and 1H NMR spectral data.
作者机构：
Cent China Normal Univ, New Mat Plant, Wuhan 430079, Peoples R China.;Wuhan Univ, Dept Environm Sci & Nat Resource, Wuhan 430072, Peoples R China.
作者机构：
Wuhan Food Ind Coll, Wuhan 430022, Peoples R China.;Cent China Normal Univ, Dept Chem, Wuhan 430079, Peoples R China.;[Xue, SJ; Tan, DY] Department of Chemistry, Central China Normal University, Wuhan 430079, China;[Sun, CY] Wuhan Food Industry College, Wuhan 430022, China
摘要：
A series of 2-benzoyliminopyrimido[3,2-b]-1,2,4-thiadiazolines were synthesized and tested for herbicidal effects. All of them are new compounds and their structures were confirmed by 1HNMR, IR, MS. The preliminary herbicidal tests show that some of the target compounds have potent activity and very good selectivity to rice.
摘要：
We verify the QED Ward identity for the two- and three-point functions at non-equilibrium in the hard thermal loop (HTL) limit. We use the Keldysh formalism of real time finite temperature field theory. We obtain an identity of the same form as the Ward identity for a set of one loop self-energy and one loop three-point vertex diagrams which are constructed from HTL effective propagators and vertices.
摘要：
We study n-point functions at finite temperature in the closed time path formalism. With the help of two basic column vectors and their dual partners we derive a compact decomposition of the time-ordered n-point functions with 2(n) components in terms of 2(n-1) - 1 independent retarded/advanced n-point functions. This representation greatly simplifies calculations in the real-time formalism.
