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The Approach of Complex Insert Packaging Fabrication in Stereolithography
The approach of complex insert packaging fabrication in stereolithography is studied in the
paper. There are many difficulties being overcome, such as the dispensing shadowing problem
caused by the geometric shape of insert, the polymer feeding problem caused by greater insert
height than the layer thickness, and the positioning problem of insert that leads to instability of
packaging. These drawbacks led to unsatisfactory results of the insert packaging in
stereolithography. In order to solve the problems, a new method of complex inserts
packaging fabrication in stereolithography is proposed in this paper. Based on the geometric
information, function and assembly direction of the inserts, the packaging approach is developed.
The approach proposed in this paper has been verified by experiments. It brings considerable
contributions to the application of insert packaging in stereolithography. It is also favorable to
the improvement of insert packaging efficiency and assembly fabricationMechanical Engineerin
An asymptotic solution of conical shells of constant thickness Progress report no. 6
Asymptotic solution of thin walled conical shell of revolution under lateral stres
Energy dependence of Normal Branch Oscillation in Scorpius X-1
We report the energy dependence of normal branch oscillations (NBOs) in
Scorpius X-1, a low-mass X-ray binary Z-source. Three characteristic quantities
(centroid frequency, quality factor, and fractional root-mean-squared (rms)
amplitude) of a quasi-periodic oscillation signal as functions of photon energy
are investigated. We found that, although it is not yet statistically well
established, there is a signature indicating that the NBO centroid frequency
decreases with increasing photon energy when it is below 6-8 keV, which turns
out to be positively correlated with the photon energy at the higher energy
side. In addition, the rms amplitude increases significantly with the photon
energy below 13 keV and then decreases in the energy band of 13-20 keV. There
is no clear dependence on photon energy for the quality factor. Based on these
results, we suggest that the NBO originates mainly in the transition layer.Comment: 6 pages, 4 figure
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