Results 21 to 30 of about 2,551,621 (293)

Influence of Temperature and Acid Etching Time on the Superficial Characteristics of Ti [PDF]

open access: yesMaterials Research, 2015
We evaluated the influence of the etching time and temperature of an acid solution (HCl/H2SO4) on the chemical and topographical superficial characteristics of cpTi grade IV.
Bruno Ramos Chrcanovic   +2 more
doaj   +1 more source

Characterization of Magnesium-Polylactic Acid Films Casted on Different Substrates and Doped with Diverse Amounts of CTAB

open access: yesMolecules, 2021
Polylactic acid (PLA) is a good candidate for the manufacture of polymeric biodegradable biomaterials. The inclusion of metallic particles and surfactants solves its mechanical limitations and improves its wettability, respectively.
Margarita Hierro-Oliva   +3 more
doaj   +1 more source

Virtual substrate method for nanomaterials characterization

open access: yesNature Communications, 2017
Quantitative characterization of supported nanomaterials is challenging, because the nanomaterial signals cannot easily be deconvoluted from those of the substrate.
Bo Da   +14 more
doaj   +1 more source

Control of Crystallinity in Nanocrystalline Silicon Prepared by High Working Pressure Plasma-Enhanced Chemical Vapor Deposition

open access: yesAdvances in Materials Science and Engineering, 2012
The crystalline volume of nanocrystalline silicon (Si) films could be successfully controlled simply by changing the substrate scan speed at the high working pressure of 300 Torr.
Jung-Dae Kwon   +5 more
doaj   +1 more source

Critical Drug Loss Induced by Silicone and Polyurethane Implantable Catheters in a Simulated Infusion Setup with Three Model Drugs

open access: yesPharmaceutics, 2021
Silicone and polyurethane are biocompatible materials used for the manufacture of implantable catheters, but are known to induce drug loss by sorption, causing potentially important clinical consequences.
Nicolas Tokhadzé   +4 more
doaj   +1 more source

Characterization of Kollár surfaces [PDF]

open access: yesAlgebra & Number Theory, 2018
Koll\'ar introduced in [Ko08] the surfaces $$(x_1^{a_1}x_2+x_2^{a_2}x_3+x_3^{a_3}x_4+x_4^{a_4}x_1=0)\subset \mathbb{P}(w_1,w_2,w_3,w_4)$$ where $w_i=W_i/w^*$, $W_i=a_{i+1}a_{i+2}a_{i+3}-a_{i+2}a_{i+3}+a_{i+3}-1$, and $w^*=$gcd$(W_1,\ldots,W_4)$. The aim was to give many interesting examples of $\mathbb{Q}$-homology projective planes. They occur when $w^
Urzúa Elia, Giancarlo A.   +1 more
openaire   +5 more sources

Graphene Family Nanomaterials (GFN)-TiO2 for the Photocatalytic Removal of Water and Air Pollutants: Synthesis, Characterization, and Applications

open access: yesNanomaterials, 2021
Given the industrial revolutions and resource scarcity, the development of green technologies which aims to conserve resources and reduce the negative impacts of technology on the environment has become a critical issue of concern.
Chih-Hsien Lin, Wei-Hsiang Chen
doaj   +1 more source

Harnessing Nuclear Magnetic Resonance Spectroscopy to Decipher Structure and Dynamics of Clathrate Hydrates in Confinement: A Perspective

open access: yesMolecules
This perspective outlines recent developments in the field of NMR spectroscopy, enabling new opportunities for in situ studies on bulk and confined clathrate hydrates. These hydrates are crystalline ice-like materials, built up from hydrogen-bonded water
Maarten Houlleberghs   +5 more
doaj   +1 more source

Stochastic analysis of surface roughness

open access: yes, 2003
For the characterization of surface height profiles we present a new stochastic approach which is based on the theory of Markov processes. With this analysis we achieve a characterization of the complexity of the surface roughness by means of a Fokker ...
  +21 more
core   +2 more sources

Investigations on composition and morphology of electrochemical conversion layer/titanium dioxide deposit on stainless steel [PDF]

open access: yes, 2006
In this study, the formation and characterization of conversion coatings modified by a sol-gel TiO2 deposit were investigated as a way to develop a new photocatalyst for water and air depollution.
Ansart, Florence   +7 more
core   +3 more sources

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