по журналам "Acta Physica Sinica (Overseas Edition)"
Отображаемые элементы 120 из 532

(19971001)The multiphoton ionization spectra of dimethylamine are given in the 445470 nm region. A timeofflight mass spectrometer was used, and experiment was done under collision free condition. It is found that (2 + 2) ...

(19931001)An energy dependence of the axial minimum channeling yield in GexSi1x/Si(100) Strainedlayer superlattice is observed in the energy range of impinging He+ ions from 1.2 to 3.0 MeV. For [100] axial channeling, the measurements ...

(19970901)We study the onedimensional solution of the shape equation of bilayer membranes within the Helfrich spontaneous curvature model. The general integral of the cylindrical shape equation is obtained which gives a complete ...

(19980201)The acoustic absorption characteristics of foamed aluminum and the effect of its structural parameters on the characteristics have been investigated. The results indicate that the acoustic absorption behavior of foamed ...

(19990101)The acousticenergy loss was measured when the sound wave propagated through a layer of water fog. By the application of the sound attenuation theory in granular media and by means of the acoustic inverse (optimization) ...

(19970801)A matrix formalism is introduced here for the analytical calculation of the thermoelastic response of onedimensional optically inhomogeneous layered structures exposed to the periodic laser heating. The multilayer structure ...

(19990801)An exact direct perturbation theory of nonlinear Schrödinger equation with corrections is developed under the condition that the initial value of the perturbed solution is equal to the value of an exact multisoliton solution ...

(19940501)Pure C60 single crystals were grown by a sublimationcondensation method in an evacuated closed quartz tube situated in a doubletemperaturegradient furnace. Large C60 single crystals, up to a size of 0.6 mm × 1.0 mm × ...

(19920901)A full quantum treatment about the process of parametric downconversion with frequency degenerate but polarization nondegenerate in an optical parametric oscillator (OPO) cavity is presented. Using the linearized Langevin ...

(19971101)Starting with the diagonal spacetime metric tensor, the Einstein gravitational field equation is solved, and a set of exact (3 + 1) dimensional cylindrically symmetric wave solutions with two arbitrary functions are found. ...

(19940801)An online optical modulation photoreflectance (PR) spectroscopy analysis system associated with the molecular beam epitaxy (MBE) system has been designed and established. This paper reports in detail the optical design, ...

(19971001)4He ions of various energies and at various doses were implanted into three kinds of samples: TiH2 films, high purity Ti pieces asreceived and after hydrogenation. Thermal release of helium was monitored insitu by ...

(19960401)Our recent treatment of some singleparticle systems implies that if the expectation value postulate in usual quantum theory is changed in some proposed way, we can also have a selfconsistent and reasonable oneparticle ...

(19990601)From transitionrateequations and transmissionequations the formulas of threshold power and slope efficiency of an endpumped laser for a fourlevel system are deduced. Citing the laser of Er:YAG as an example, we have ...

(19980501)The opticaloptical double resonant multiphoton ionization (OODRMPI) technique and the fluorescent excitation spectroscopy technique have been applied to the study of the F'0u+ ionpair state of iodine. This paper presents ...

(19940601)Observation of the 532 nmlaserinduced fluorescence spectra of two kinds of Cr:Mg2SiO4 crystalline samples grown in different atomsphere are reported. The experiments were conducted at both room temperature and liquidnitrogen ...

(19960401)Based on the semiclassical theory of Camley and Barna (CB), the problem of solving the giant magnetoresistance in magnetic multilayers (Fi/Ni)n/Fn+1 is comprehensively discussed with both the bulk and interface spindependent ...

(19990901)According to generalized linear quantum transformation theory, we give the exact expression of the evolution operator, wave function and expectation value of observable quantity for onedimensional quantum oscillator with ...

(19940801)Using numerical calculation method, we have studied the Anderson transition in the SoukoulisEconomou model of onedimensional incommensurate systems. Our results indicate that the Anderson transition in this model should ...

(19991101)A transferable tightbinding potential for nickel was used with moleculardynamics methods and simulatedannealing techniques to study the structural properties of nickel clusters Nin (n 55). The mean coordination number ...
Отображаемые элементы 120 из 532