Results 61 to 70 of about 7,783,143 (244)

Self‐Cleaning Sensor Surfaces for Long‐Term Environmental Monitoring

Advanced Engineering Materials, EarlyView.
Long‐term use of unattended outdoor sensors without soiling or biofouling is achieved through generation of a micro‐ and nanorough cuvette surface by combing hydrophobic nanoparticles with fluorinated polymers, crosslinked and surface‐attached through CHic chemistry. The coating demonstrates self‐cleaning behavior and prolonged outdoor stability, which
Sanam Kumari Rajak, Yasmina Frey, Ulrike Wallrabe, Oswald Prucker, Jürgen Rühe   +4 more
wiley   +1 more source

Time-resolved x-ray absorption spectroscopy: Watching atoms dance [PDF]

The introduction of pump-probe techniques to the field of x-ray absorption spectroscopy (XAS) has allowed the monitoring of both structural and electronic dynamics of disordered systems in the condensed phase with unprecedented accuracy, both in time and
Pham, Van-Thai, Hauser, Andreas, Chergui, Majed, van der Veen, Renske M., Gawelda, Wojciech, Johnson, Steven L., Abela, Rafael, Borca, Camelia, Benfatto, Maurizio, Vithanage, Dimali A., Lima, Frederico, Grolimund, Daniel, Beaud, Paul, Ingold, Gerhard, Kaiser, Maik, Bressler, Christian, Milne, Chris J., El Nahhas, Amal   +17 more
core   +2 more sources

Exact solution of a variety of X-ray probes in the Falicov-Kimball model with dynamical mean-field theory

Condensed Matter Physics, 2012
We examine the core-level X-ray photoemission spectroscopy (XPS), X-ray absorption near-edge spectroscopy (XANES) and X-ray emission spectroscopy (XES) in the Falicov-Kimball model by using the exact solution from dynamical mean-field theory.
A.M. Shvaika, J.K. Freericks
doaj   +1 more source

Visualization of elemental distributions and local analysis of element-specific chemical states of an Arachnoidiscus sp. frustule using soft X-ray spectromicroscopy.

PLoS ONE, 2020
Using soft X-ray (SX) spectromicroscopy, we show maps of the spatial distribution of constituent elements and local analysis of the density of states (DOS) related to the element-specific chemical states of diatom frustules, which are composed of ...
Tomoko Ishihara, Takuo Ohkochi, Akinobu Yamaguchi, Yoshinori Kotani, Masaki Oura   +4 more
doaj   +1 more source

Simulation‐Based Analysis of Insert Pull‐Out in Nickel‐Polyurethane Hybrid Foams Using CT‐Derived Geometries

Advanced Engineering Materials, EarlyView.
CT‐based finite element simulations combined with in situ X‐ray computed tomography are used to analyze insert pull‐out in nickel‐coated polymer foams. Despite variations in material parameters, deformation consistently concentrates within a narrow annular region around the insert.
Yannik Bautz, Jonas Fell, Hendrik Jost, Stefan Diebels, Hans‐Georg Herrmann   +4 more
wiley   +1 more source

Streaking and splashing: design of a grazing incidence x-ray streak camera and time-resolved measurements of the structure of water [PDF]

, 2006
The performance of cesium iodide photocathodes has been characterized for use with grazing incidence soft x-rays. The total electron yield and pulsed quantum efficiency has been measured in a reflection geometry as a function of photon energy (100 eV to ...
Lowney, Donnacha
core   +2 more sources

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

Morphology, Transport, and Dynamics of Protein Adsorption in Open‐Cell Metal Foam

Advanced Engineering Materials, EarlyView.
Stainless steel (SS) open‐cell foams are shown to adsorb more protein per unit area than previously reported 316L SS and chromium oxide surfaces under static and flow conditions. An integrated approach combining 3D pore imaging, flow simulation, and protein adsorption experiments characterizes the foam’s performance.
Chinmaya Prerana Inguva, Joseph Lavoie, Afsaneh Rabiei   +2 more
wiley   +1 more source

Development of an x-ray excited optical luminescence microscope (XEOM) [PDF]

X-ray excited optical luminescence (XEOL) refers to the trans-visible emission produced as a consequence of X-ray bombardment and provides an alternative detection method for X-ray absorption spectroscopy (XAS). Whereas XAS measured by conventional means
Hand, M. (Matthew)
core  

X-ray absorption spectroscopy study of the La0.7Ba0.3Mn1−xCoxO3 system

, 2009
We report the transition-metal (Mn and Co) K-edge X-ray absorption spectroscopy (XAS) study of a series of La0.7Ba0.3Mn1−xCoxO3 (0⩽x⩽1) samples. Systematic chemical shifts to higher energy with the Co content (x) are observed in both Mn and Co K-edge ...
張經霖; Chang, C. L.; Tai, M. F.; Chung, T. W.; Lee, F. Y.; Su, Y. W.; Liu, S. Y.; Hwang, C. S.; 鄭伯昆; Tseng, P. K.; Shi, J. B.
core   +1 more source