Results 201 to 210 of about 118,485 (254)

Stromal Prostaglandin is a Dominant Spatial Regulator of Cell-fate Plasticity in Colorectal Cancer

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Plastic axial gradient-index lens

Applied Optics, 1985
An axial gradient-index (GRIN) lens, where the refractive index varies along the optical axis of a convex lens, can reduce the spherical aberration compared with the conventional homogeneous lens. The transparent plastic axial GRIN material was successfully fabricated by chemical copolymerization and diffusion techniques.
Y, Koike, H, Hidaka, Y, Ohtsuka
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Determination of the Plasticity Index from Flow Index

Geotechnical Testing Journal, 1999
Abstract The flow index (If), which is the slope of the water content versus log10 (number of blows) plot in the percussion cup method or the slope of the water content versus log10 (depth of penetration) plot of the cone penetration method of determining the liquid limit of soils is a measure of soil plasticity.
Sridharan, A, Nagaraj, HB, Prakash, K
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A plastics index for the food service industry: [PDF]

open access: possibleAcademica Turistica - Tourism and Innovation Journal, 2012
Sustainability is an increasingly powerful slogan for environmental consciousness in business and commerce. For all its benefits in enabling our current living standards, the use of plastic has proven to cause significant health and environmental damage.
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A general expression for plasticity index

Wear, 1988
Abstract The well-known plasticity index ψ has been widely applied in studying the contact of rough surfaces since 1966, when it was postulated by Greenwood and Williamson. Because the plasticity index ψ was derived under the implicit hypothesis that the surfaces in contact were isotropic, it was limited in application and there was some confusion ...
Chengwei Wu, Linqing Zheng
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