Buscar
Mostrando ítems 31-40 de 109648
Projections of surfaces in 'R POT.4' to 'R POT.3' and the geometry of their singular images
(European Mathematical SocietyZurich, 2015)
We study the geometry of germs of singular surfaces in 'R POT.3' whose parametrisations have an A-singularity of 'A IND.E'-codimension less than or equal to 3, via their contact with planes. These singular surfaces occur ...
Implant surface features as key role on cell behavior
(2022-01-01)
It has been recognized that physical and chemical properties of biomaterial surfaces mediate the quality of extracellular matrix (ECM) that may affect cell behaviors. In nature, ECM is a heterogeneous three-dimensional ...
Investigations on the stability of plasma modified silicone surfaces
(Kluwer Academic/plenum Publ, 2004-03-01)
In this work it was investigated the effect of the exposure to different plasmas on the wettability of silicone samples. We have observed that oxygen. argon, and hydrogen glow discharges are quite effective in reducing the ...
Study of polypropylene surface modification by air dielectric barrier discharge operated at two different frequencies
(2012-10-18)
In this work, air dielectric barrier discharge (DBD) operating at the line frequency (60 Hz) or at frequency of 17 kHz was used to improve the wetting properties of polypropylene (PP). The changes in the surface hydrophilicity ...
Study of polypropylene surface modification by air dielectric barrier discharge operated at two different frequencies
(2012-10-18)
In this work, air dielectric barrier discharge (DBD) operating at the line frequency (60 Hz) or at frequency of 17 kHz was used to improve the wetting properties of polypropylene (PP). The changes in the surface hydrophilicity ...
Surfaces refracting and reflecting collimated beams
(Optical Society of America, 2011-04)
We describe necessary and sufficient conditions for image transformations so that surfaces refracting or reflecting collimated beams exist. The surfaces are given by explicit formulas. When these conditions are not satisfied, ...
Advanced ceramics: Evaluation of the mechanism of stock removal and ground surface quality
(1999-12-01)
The aim of this work is to evaluate the mechanism of stock removal and the ground surface quality of advanced ceramics grounded by a plane tangential grinding process with diamond grinding wheels. The analysis of the ...
Surface coverage dictates the surface bio-activity of d-amino acid oxidase
(Elsevier Science, 2014-03)
This work presents a systematic study on the relationship between the adsorption mechanism and the surface bio-activity of d-amino acid oxidase (pkDAAO). This rational approach is based on measuring the characteristic ...
Advanced ceramics: Evaluation of the mechanism of stock removal and ground surface quality
(1999-12-01)
The aim of this work is to evaluate the mechanism of stock removal and the ground surface quality of advanced ceramics grounded by a plane tangential grinding process with diamond grinding wheels. The analysis of the ...
Strain distribution due to surface domains: A self-consistent approach with respect to surface elasticity
(Beilstein-Institut Zur Forderung der Chemischen Wissenschaften, 2015-01)
Elastically mediated interactions between surface domains are classically described in terms of point forces. Such point forces lead to local strain divergences that are usually avoided by introducing a poorly defined ...