Pressure distribution on spinning spinnerets

M98-g8 Molecular Spinnerets for Polymeric Fibers

The objective of this work is to investigate, design, and synthesize molecular spinning machines that can be shaped in the form of membranes which can control fiber structures and produce nanofibers. Using this design entire spinning units and associated systems, which currently occupy two or three floors, can be made to fit in a small room. Fibers with custom designed structures and properties...

Distribution of Power Requirements during Yarn Winding in Ring Spinning

Pressure-induced isomerization of retinal on bacteriorhodopsin as disclosed by fast magic angle spinning NMR.

Bacteriorhodopsin (bR) is a retinal protein in purple membrane of Halobacterium salinarum, which functions as a light-driven proton pump. We have detected pressure-induced isomerization of retinal in bR by analyzing 15N cross polarization-magic angle spinning (CP-MAS) NMR spectra of [zeta-15N]Lys-labeled bR. In the 15N-NMR spectra, both all-trans and 13-cis retinal configurations have been obse...

Effect of taekwondo on plantar pressure distribution symmetry in dominant and none-dominant limb

The aim of this study was the comparison of plantar pressure distribution, vertical ground reaction force and contact area between dominant and none-dominant limb in top-flight females taekwondo.10 healthy young top-flight females taekwondo were selected. plantar pressure ,vertical ground reaction force and contact area were evaluated by emed system .The obtained data were analyzed by paired -t...

Distribution of lateral active earth pressure on a rigid retaining wall under various motion modes

The design of retaining walls depends on the magnitude of active pressure exerted from the backfill. Therefore, estimating the scale of this pressure is a fundamental factor in the design. In this study, to assess the active earth pressure, a rigid retaining wall was built capable of translating and/or rotating with adjustable speed. Further, several physical tests were conducte...