2,644 research outputs found
General transformation of alpha cluster model wave function to jj-coupling shell model in various 4N nuclei
The antisymmetrized quasi-cluster model (AQCM) is a method to describe a
transition from the alpha-cluster wave function to the jj-coupling shell model
wave function. In this model, the cluster-shell transition is characterized by
only two parameters; R representing the distance between alpha clusters and
Lambda describing the breaking of alpha clusters, and the contribution of the
spin-orbit interaction, very important in the jj-coupling shell model, can be
taken into account starting with the alpha cluster model wave function. In this
article we show the generality of AQCM by extending the application to heavier
region; various 4N nuclei from 4He to 52Fe. We show and compare the energy
curves for the alpha+40Ca cluster configuration calculated with and without
alpha breaking effect in 44Ti
Three-dimensional boundary layer analysis program Blay and its application
The boundary layer calculation program (BLAY) is a program code which accurately analyzes the three-dimensional boundary layer of a wing with an undefined plane. In comparison with other preexisting programs, the BLAY is characterized by the following: (1) the time required for computation is shorter than any other; (2) the program is adaptable to a parallel processing computer; and (3) the program is associated with a secondary accuracy in the z-direction. As a boundary layer modification to transonic nonviscous flow analysis programs, it is used to adjust viscous and nonviscous interference problems repeatedly. Its efficiency is an important factor in cost reduction in aircraft designing
Coverage dependent desorption dynamics of deuterium on Si(100) surfaces: Interpretation with a diffusion-promoted desorption model
We studied coverage dependence of time-of-flight (TOF) spectra of D2 molecules thermally desorbed from the D/Si(100) surface. The mean translational energies Et of desorbed D2 molecules were found to increase from 0.20±0.05 eV to 0.40±0.04 eV as the desorption coverage window was decreased from 1.0 MLD0.9 ML to 0.2 MLD0 ML, being consistent with the kinetics switch predicted in the interdimer mechanism. The measured TOF spectra were deconvoluted into 2H, 3H, and 4H components by a curve fitting method along the principle of detailed balance. As a result, it turned out that the desorption kinetics changes from the 4H to the 3H situation at high coverage above D = 0.9 ML, while the 2H desorption is dominant for a quite wide coverage region up to D = 0.8 ML. A dynamic desorption mechanism by which the desorption is promoted by D-atom diffusion to dangling bonds was proposed
P206 New possibilities of allogeneic chondrocyte transplantation for cartilage repair: an in vitro study of immunological properties of human articular chondrocytes derived from osteoarthritis joints
関西学院大
Free field approach to diagonalization of boundary transfer matrix : recent advances
We diagonalize infinitely many commuting operators . We call these
operators the boundary transfer matrix associated with the quantum
group and the elliptic quantum group. The boundary transfer matrix is related
to the solvable model with a boundary. When we diagonalize the boundary
transfer matrix, we can calculate the correlation functions for the solvable
model with a boundary. We review the free field approach to diagonalization of
the boundary transfer matrix associated with and
. We construct the free field realizations of the
eigenvectors of the boundary transfer matrix . This paper includes new
unpublished formula of the eigenvector for . It is thought that
this diagonalization method can be extended to more general quantum group
and elliptic quantum group .Comment: To appear in Group 28 : Group Theoretical Method in Physic
A new ultra high energy gamma ray telescope at Ohya mine
The search for ultra high energy gamma rays coming from point sources is one of the main experimental aims. A fast air shower timing system was constructed at ICRR for the study of the angular resolution of the system and operated approximately half a year. The characteristics of the surface array of Ohya air shower telescope is described
Background light measurements at the DUMAND site
Ambient light intensities at the DUMAND site, west of the island of Hawaii were measured around the one photoelectron level. Throughout the water column between 1,500m and 4,700m, a substantial amount of stimulateable bioluminescence is observed with a ship suspended detector. But non-stimulated bioluminescence level is comparable, or less than, K sup 40 background, when measured with a bottom tethered detector typical of a DUMAND optical module
Establishment of rostrocaudal polarity in tectal primordium:engrailed expression and subsequent tectal polarity
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