Results 181 to 190 of about 253,700 (370)
Hydrogen (H) retention and desorption in tungsten (W)-based plasma-facing materials are still not well understood, largely due to the limitations of ex-situ observations in experimental detection methods like thermal desorption spectroscopy (TDS).
Xiaoru Chen+5 more
doaj +1 more source
Chiral Sensing of Amino Acids under Visible Light via Hydroxypropyl Cellulose Gels
Hydroxypropyl cellulose gels enable visible‐light‐based chiral detection of amino acid enantiomers. This study showcases their structural color properties for distinguishing phenylalanine and alanine enantiomers. The gels exhibit pH‐responsive color changes, high sensitivity at low concentrations (0.2 wt.%), and long‐term stability, offering ...
Luyao Huang+6 more
wiley +1 more source
Demonstration of a Graphene Adjustable‐Barriers Phototransistor with Tunable Ultra‐High Responsivity
A novel graphene‐based phototransistor with a tunable ultra‐high responsivity of 1.7 x 107 AW−1 has been demonstrated. Due to the selected material combination of amorphous silicon, graphene and n‐germanium, the device is potentially capable of dual‐band detection in the VIS‐IR range.
Carsten Strobel+5 more
wiley +1 more source
The practical use of tungsten and molybdenum in orthodontic appliances [PDF]
H.C. Pollock
openalex +1 more source
Photonic resonances within a dielectric metasurface are investigated using photoelectron emission microscopy (PEEM) and finite‐difference time‐domain simulations. An electron inelastic mean free path of 35 ± 10 nm is extracted from comparisons between microscopy and simulations.
Andrew R. Kim+9 more
wiley +1 more source
Research on Manufacture of "Heavy Alloys" Composed of Tungsten-Nickel-Copper System
Tatsuo Matsukawa, Tosiyuki SAKAI
openalex +2 more sources
Geology of tungsten deposits in north-central Chile [PDF]
James Franklin McAllister+1 more
openalex +1 more source
Functional Optical Fibers with Tailored Side Emission from Modified Rod‐in‐Tube Preforms
A modified rod‐in‐tube method enables fabrication of functional optical fibers with tailored light‐diffusing properties. The approach incorporates optically active species at a well‐defined radial position within an otherwise homogeneous fiber core. Using lanthanide ions and noble metal nanoparticles as active species demonstrates wavelength conversion
Jan Schröder+4 more
wiley +1 more source
Poka: A Necro‐Robot Beetle with a Measured Payload Ratio of 6847%
Here, Poka, a necro‐robot beetle with the ability to carry more than 68 times its own weight, is introduced, making it also a walking robot with the highest payload ratio measured to date. This paper is concerned with the design, manufacture and validation of ‘Poka', a novel millimetre‐scale necro‐robot aimed at bridging the performance gap between ...
Yordan Tsvetkov, Parvez Alam
wiley +1 more source