Experimental study of the resonances 2s21S, 2p21D and 2s2p1P of the helium atom in energy spectra of electrons ejected in H+-He collisions (below 150 keV)

An experimental study to determine the flow characteristics of an incompressible fluid in turbulent, radially outward flow between two coaxial, stationary disks was conducted employing a split film anemometer probe. Instantaneous velocity components in the radial and axial directions were measured; from these measurements, average velocity profiles, turbulence intensities, Reynolds stresses, energy spectra and probability density functions for the fluctuating components were computed. It is observed that the law of the wall may not be applicable everywhere. A criterion established earlier for reverse transition to laminar flow may be valid with a value of the constant smaller than suggested. A few other aspects of the flow are also discussed.

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Experimental Study on Neutron Energy Spectra during Moderation in the Thermal Reactor

Journal of the Atomic Energy Society of Japan / Atomic Energy Society of Japan ◽

10.3327/jaesj.5.832 ◽

1963 ◽

Vol 5 (10) ◽

pp. 832-841 ◽

Cited By ~ 1

Author(s):

Hideo KUROI

Keyword(s):

Experimental Study ◽

Neutron Energy ◽

Energy Spectra ◽

Thermal Reactor

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An Experimental Study of Turbulent Energy Spectra in Stably Stratified Shear Flow.

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B ◽

10.1299/kikaib.57.1652 ◽

1991 ◽

Vol 57 (537) ◽

pp. 1652-1657 ◽

Cited By ~ 2

Author(s):

Kengo IWASHIGE ◽

Goichi MATSUI ◽

Tsunehisa SANAGI ◽

Masanori YAMAKAWA ◽

Hideaki MONZI

Keyword(s):

Experimental Study ◽

Shear Flow ◽

Turbulent Energy ◽

Energy Spectra ◽

Stratified Shear Flow ◽

Stably Stratified Shear Flow

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Experimental study on the restoration from a tilt-azimuth series for improvement in resolution

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s042482010013955x ◽

1995 ◽

Vol 53 ◽

pp. 636-637

Author(s):

Norio Baba ◽

Norihiko Ichise ◽

Syunya Watanabe

Keyword(s):

Experimental Study ◽

Spherical Aberration ◽

Incident Beam ◽

Optical Parameters ◽

Beam Tilting ◽

Illumination Method ◽

Restoration Method ◽

Illumination Mode

The tilted beam illumination method is used to improve the resolution comparing with the axial illumination mode. Using this advantage, a restoration method of several tilted beam images covering the full azimuthal range was proposed by Saxton, and experimentally examined. To make this technique more reliable it seems that some practical problems still remain. In this report the restoration was attempted and the problems were considered. In our study, four problems were pointed out for the experiment of the restoration. (1) Accurate beam tilt adjustment to fit the incident beam to the coma-free axis for the symmetrical beam tilting over the full azimuthal range. (2) Accurate measurements of the optical parameters which are necessary to design the restoration filter. Even if the spherical aberration coefficient Cs is known with accuracy and the axial astigmatism is sufficiently compensated, at least the defocus value must be measured. (3) Accurate alignment of the tilt-azimuth series images.

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