Results 101 to 110 of about 613,393 (297)

Nanostructuring of Titanium by Anodic Oxidation with Sulfuric and Hydrofluoric Acid

Current Directions in Biomedical Engineering, 2018
Within this work we demonstrate different Anodic Oxidation processes to achieve a broad variety of nanostructures on titanium and the titanium alloy Ti6Al4V for the use as medical implant surfaces.
Doll P. W., Wolf M., Weichert M., Ahrens R., Guber A. E., Spindler B.   +5 more
doaj   +1 more source

Nonparametric estimation of the volatility under microstructure noise: wavelet adaptation [PDF]

We study nonparametric estimation of the volatility function of a diffusion process from discrete data, when the data are blurred by additional noise. This noise can be white or correlated, and serves as a model for microstructure effects in financial ...
Hoffmann, Marc, Munk, Axel, Schmidt-Hieber, Johannes   +2 more
core  

Fabrication Routes for Ionic Conducting Fiber Strain Sensors

Advanced Engineering Materials, EarlyView.
Ionic conducting fiber strain sensors (ICFSs) offer compliant, textile‐integrable sensing. Thus far, the commercialization of ICFSs has been constrained by fiber fabrication routes. This review provides a fabrication‐centric analysis of ICFSs correlating processing strategies with material properties and scalability.
Leo John Kershaw, Zhanhong Yang, Anne Ladegaard Skov, Magdalena Skowyra   +3 more
wiley   +1 more source

Spontaneous emergence of skyrmions beyond room temperature in boron-doped CrTe

Communications Materials
Magnetic skyrmions are vortex-like spin textures that exhibit remarkable emergent phenomena and hold great promise for applications in spintronics, magnonic devices, and neuromorphic computing.
Jagannath Jena, Konstantin Holst, Börge Göbel, Yangkun He, Binoy Krishna Hazra, Pedram Bassirian, Katayoon Mohseni, Georg Woltersdorf, Ingrid Mertig, Holger Meyerheim, Claudia Felser, Stuart S. P. Parkin   +11 more
doaj   +1 more source

Influence of TiC and TiN Ceramic Reinforcements on the Microstructure, Thermal Expansion Behavior, and Tensile Properties of Invar 36 Manufactured by Laser Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
This study examines Invar composites reinforced with titanium carbide (TiC) and titanium nitride (TiN) using laser powder bed fusion (LPBF). It presents the influence of reinforcements on microstructure, tensile properties, and thermal expansion. Results show that TiC effectively strengthens Invar while maintaining low thermal expansion, whereas TiN ...
Ayodeji Nathaniel Oyedeji, Natasha Sacks, Johannes Pötschke, Björn Matthey   +3 more
wiley   +1 more source

Direct imaging of structural changes induced by ionic liquid gating leading to engineered three-dimensional meso-structures

Nature Communications, 2018
Local and reversible oxidation is used to exploit the very different properties of oxygen and vacancy ordered oxides. Here the authors directly image and make use of anisotropic migration velocities of oxygen in SrCoO x to create 3D meso-structures of ...
Bin Cui, Peter Werner, Tianping Ma, Xiaoyan Zhong, Zechao Wang, James Mark Taylor, Yuechen Zhuang, Stuart S. P. Parkin   +7 more
doaj   +1 more source

Comment on “Realized Variance and Market Microstructure Noise” by Peter R. Hansen and Asger Lunde [PDF]

We find ourselves very much in agreement with the thrust of HL’s message concerning the complexity induced by microstructure noise. In particular, we agree that noise is time dependent and correlated with the efficient price - features that in our view ...
Jun Yu, Peter C. B. Phillips
core  

Rapidly Solidified High‐Strength Invar 36 Prepared by Planar‐Flow Melt Spinning

Advanced Engineering Materials, EarlyView.
The Invar 36 alloy was rapidly solidified using the planar‐flow melt‐spinning technique. Ribbon samples with thicknesses ranging from 20 to 160 mm were produced. As the grain size of the ribbon decreased to sub‐micron levels, the hardness increased by more than 2 times.
Bekir Akgül, Mehmet Kul
wiley   +1 more source

Estimation of Volatility Functionals in the Simultaneous Presence of Microstructure Noise and Jumps [PDF]

We propose a new concept of modulated bipower variation for diffusion models with microstructure noise. We show that this method provides simple estimates for such important quantities as integrated volatility or integrated quarticity.
Vetter, Mathias, Podolskij, Mark
core  

Gallium Microalloying in Bi–Sn Solders: Interfacial Phase Formation, Wettability, and Long‐Term Shear Reliability Under Isothermal Aging

Advanced Engineering Materials, EarlyView.
Gallium microalloying redirects interfacial reactions in low‐temperature Bi–Sn solders from Cu–Sn toward Cu–Ga intermetallic formation. The resulting Cu–Ga layer suppresses intermetallic growth during thermal aging, alters fracture pathways, and improves interfacial stability.
Iva Králová, Markéta Klimtová, Mohd Faizul Mohd Sabri, Yew Hoong Wong, Petr Veselý, Martin Plaček, Karel Dušek   +6 more
wiley   +1 more source