A REGULARIZATION SCHEME FOR OBTAINING BARDEEN ANOMALY

A new regularization operator, (e^{-Ø_L(X)Ø_R(X)/M2}+e^{-Ø_R(X)Ø_L(X)/M2})|_M→∞’ is proposed to calculate the variation of the fermion path-in-tegral measure under a chiral transformation, and the normal anomaly, i.e.Bardeen anomaly, is obtained .in this paper. Moreover, the non-Abelian anomaly of the cosec pure gauge fields is calcula-ted by means of this regularization operator.The corresponding results in Minkowski space can readily be obtained in the principal value integral.     

Some Generalized Scalar Field Models with Abundant Soliton-Like configurations

Some generahed scalar field models are presented. It is shown that there exist generally three types of soliton solutions for the extended models. The form of the first type of the soliton solutions is model-independent. An arbitrary constant can be included in the second type of the soliton excitations which is model-dependent. The third type of the soliton solutions is also modeldependent but with no arbitrary constant. The extended φ⁴ model and sine-Gordon model are studied in detail.     

GAUGE TRANSFORMATION IN STRING THEORY

In this paper,the authors find a transformation which connects the covariant formalism with the light-cone formalism in bosonic open string theory,which leads to the connection between covariant statevectors and light-cone statevectors,and yields an orthogonal complete set of states in covariant formalism and a physical projective operator for arbitrary space-time dimension D and intercept of Regge trajectory α(0).The later reduces to the result given by L.Brink and D.Olive in the case of D=26,α(0)=1.Finally,we explicitly show that in covariant formalism,the mass square operator M²≥0 except for the tachyon of ground state.     

NEUTRON SPIN INTERFERENCE AND INFLUENCE OF EARTH GRAVITATION

The interference between the spinor components of the polarized neutron beam passed through a Mezei-coil, i.e. spin interference, is investigated. The influence coming from the earth gravitation on the Neutron Spin Echo(NSE) is calculated. We point out that this quantum interference effect due to gravitation will not violate the weak principle of equivalence, so it has a significant diffrence to the COW experiment.     

QUANTUM THEORY FOR FERMION SYSTEM AND ITS PSEUDO-CLASSICAL CORRESPONDENCE

On the basis of the fermionic coherent state formulation we propose the weyl-McCoy correspondence for fermion system, from which a functional integral form without the boundary term is derived. Moreover, the generating functional, the wigner theorem. and the Moyal bracket for fermion system are also demonstrated. Thus the theory of quantum mechanics for Fermi operators and its pseudo-classical correspondence is established.     

MOTION OF NEUTRONS IN SLAB-LIKE UNIFORM MAGNETIC FIELDS

The rigorous solutions of the relativistic wave equation for neutrons are obtained in the case of slab-like uniform magnetic fields at perpendicular incidence. For all energy rerions (from zero to ultra-relativistic), corresponding expressions of the one-dimensional scattering of neutrons,in particular, neutrons with very slow velocities, are studied. Finally, the corresponding transformations of the neutron's spin vectors are given.     

电子俘获材料在光记录中的应用

研究了自行研制的CaS(Eu,Sm)电子俘获材料的光学性质;利用～200μm厚的CaS(Eu,Sm)高聚物膜作为记录底片,进行了实物图象的拍摄实验。这种记录材料具有很多有吸引力的优点:不需要用化学溶液进行定影显影,可以实时读出,可快速擦除,能反复使用,具有大的线性范围等。实验表明,电子俘获材料是一种很有前途的光记录材料。     

The Characteristic Equation of q-Deformed Bosonic Oscillator

The main goal of this paper is to deduce the characteristic equation of [N]. From the fundamental relation of q-deformed bosonic oscillator, we deduce a strict algebraic equation. After introducing a moderate boundary condition, we obtain the characteristic equation of number operator [N].Using this equation, we extract all the eigenvalues of operator [N] and write out the corresponding eigenstates. Then we obtain the completeness of the Hilbert space.     

甲烷利用菌催化烯烃环氧化的底物选择性, 细胞失活原因及产物对映体组成

研究了甲烷利用菌Methylomonas sp. GYJ3, Methylomonas sp. S, Methylomonas sp. Z201,Methylococcus capsulatus IMV3021, Methylosinus trichosporium IMV3011休止细胞催化烯烃环氧化的底物选择性, 细胞失活原因以及产物对映体组成。发生不同菌株和底物的环氧化活性不同。甲烷利用菌只能催化短链烯烃环氧化, 环烯烃和芳香烯烃无反应。对烯丙基型底物而言, 取代基大小和极性影响环氧化活性。丙烯环氧化活性最高, 烯丙醇不能环氧化。细胞失活的主要原因是环氧化产物的细胞毒性和反应体系中辅酶NADH损耗。手性气相色谱揭示甲烷利用菌催化烯烃环氧化形成外消旋产物。     

Ziegler-Natta 型催化剂NdCl3·3I-PtOH-AlEt3 两组分间的反应及其反应产物对双稀烃聚合的催化活性

The reactions between the two components of the rare-earth coordination catalyst, NdCl3.3i-PrOH and AlEt3, were studied. It was found that the activated solid product was a mixture containing alkylated neodymium compounds, but no alkyl chloride was formed during the reaction. The alkyls bounded to neodymium or to the bridge between neodymium and aluminium atoms are thermally less stable than those bonded to the aluminium atom. Two possible structures of alkylated neodymium compounds were postulated. The catalytic activity in the isoprene polymerization increases with the increase of degree of alkylation and decreases in the presence of alkyl aluminium chloride.