Results 51 to 60 of about 1,961,451 (191)
Lifetime and surface-to-bulk scattering off vacancies of the topological surface state in the three-dimensional strong topological insulators Bi2Te3 and Bi2Se3 [PDF]
Journal of Physics and Chemistry of Solids, 128, 258-264 (2019), 2017 We analyze the finite lifetimes of the topologically protected electrons in the surface state of Bi2Te3 and Bi2Se3 due to elastic scattering off surface vacancies and as a function of energy. The scattering rates are decomposed into surface-to-surface and surface-to-bulk contributions, giving us new fundamental insights into the scattering properties ...
arxiv +1 more source
Frontiers in Dentistry, 2019 Objectives: This study aimed to assess the effect of 0.05% sodium fluoride (NaF) mouthwash on the surface roughness and friction between ceramic brackets and rhodium-coated (RC) and uncoated stainless steel (SS) wires.
Tahereh Hosseinzadeh Nik +5 more
doaj +1 more source
Aging mechanism and surface properties of Silica fluoropolymer coating and its application
Materials Research Express, 2020 The hydrothermal aging cycles experiment was carried out on synthetic Silica fluoropolymer coating (SiO _2 -FP). The hydrothermal aging mechanism, surface properties and protective efficacy on sandstones was studied.
Hongpu Huang +3 more
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Biomedicines, 2022 This investigation aims to determine the effect of the same polishing protocol on the surface roughness (Ra) of different resins obtained by different processing techniques.
Margarida Martins Quezada +4 more
doaj +1 more source
Effect of the Synthetic Parameters over ZnO in the CO2 Photoreduction
Molecules, 2023 Zinc oxide (ZnO) is an attractive semiconductor material for photocatalytic applications, owing to its opto-electronic properties. Its performances are, however, strongly affected by the surface and opto-electronic properties (i.e., surface composition ...
Danny Zanardo +9 more
doaj +1 more source
Measurement of titanium surface roughness created by non-conventional cutting technology
Research in Agricultural Engineering, 2011 The paper evaluates the surface roughness quality of the titanium samples created by abrasive waterjet (AWJ) and by CO2 laser beam cuttings. The introduction describes the principle of the mechanical (contact) method as well as the roughness parameters ...
J. Rusnák +8 more
doaj +1 more source
Applied Sciences, 2023 The objective of this work was to improve the thermal stability, flame resistance, and surface properties of black poplar (Populus nigra L.) wood via different impregnation methods.
Abdullah Beram
doaj +1 more source
On surfaces obtained as singular loci of normal congruences of frontals with pure-frontal singular points [PDF]
arXiv, 2022 We study singularities and geometric properties of surfaces given by the singular loci of normal congruence of frontals with pure-frontal singular points. These surfaces consist of the normal ruled surface and focal surfaces of the initial frontal. For the normal ruled surface, we give characterizations of singularities in terms of geometric invariants
arxiv
International Journal of Nanomedicine, 2010 Young-Taeg SulDepartment of Biomaterials/Handicap Research, Institute for Clinical Sciences, Sahlgrenska Academy, Gothenburg University, Gothenburg, SwedenAbstract: TiO2 nanotubes are fabricated on TiO2 grit-blasted, screw-shaped rough titanium (ASTM ...
Young-Taeg Sul
doaj
Fe-Mn-Al-Ni Shape Memory Alloy Additively Manufactured via Laser Powder Bed Fusion
Crystals, 2023 Fe-Mn-Al-Ni is an Fe-based shape memory alloy (SMA) featuring higher stability and low temperature dependency of superelasticity stress over a wide range of temperatures.
Ismail Alhamdi +5 more
doaj +1 more source