Results 101 to 110 of about 1,189,790 (336)

Generation of bright phase-matched circularly-polarized extreme ultraviolet high harmonics [PDF]

open access: yes, 2015
Circularly-polarized extreme ultraviolet and X-ray radiation is useful for analysing the structural, electronic and magnetic properties of materials. To date, such radiation has only been available at large-scale X-ray facilities such as synchrotrons ...
Cohen, Oren   +12 more
core   +4 more sources

Polarized Light from the Transportation of a Matter-Antimatter Beam in a Plasma

open access: yes, 2019
A relativistic electron-positron beam propagating through a magnetized electron-ion plasma is shown to generate both circularly and linearly polarized synchrotron radiation.
Keitel, C., Kumar, N., Sinha, U.
core   +1 more source

Structural Porosity and Low Mineral Density in Enamel Rods Drive Molar Incisor Hypomineralisation

open access: yesAdvanced Functional Materials, EarlyView.
This study uses advanced imaging modalities on multiple length scales to show that molar‐incisor hypomineralization does not present as a locally homogeneous pathology. Instead, microstructural defects, characterized through non‐mineralized, protein‐rich sheaths and an altered mineral structure in between prism rods, resulting in local differences in ...
Katharina Jähn‐Rickert   +14 more
wiley   +1 more source

A Groove Gap Waveguide Feeding Network for Dual-Circularly Polarized Antenna Arrays

open access: yesIEEE Journal of Microwaves
This paper presents a groove gap waveguide structure designed to serve as a feeding network for dual circularly polarized antenna arrays in the millimeter wave spectrum (28-32 GHz).
Zeina Al Masri   +3 more
doaj   +1 more source

An Ultrafast Self‐Gelling Versatile Hydrogel for Rapid Infected Burn Wound Repair in Military Medicine

open access: yesAdvanced Functional Materials, EarlyView.
A self‐gelling PG@PAC (POD/Gel‐CDH@PA/CHX) powder is developed for infected burn care in austere settings. Upon contact with wound exudate, it instantly forms an adhesive hydrogel, providing simultaneous hemostasis, broad‐spectrum antibacterial activity, reactive oxygen species scavenging, and immunomodulation. In a murine model of S.
Liping Zhang   +14 more
wiley   +1 more source

A Novel Concentric Annular-Ring Slot Dual-Band Circularly Polarized Microstrip Antenna

open access: yesInternational Journal of Antennas and Propagation, 2018
A simple structure concentric annular-ring slot dual-band circularly polarized (CP) microstrip antenna operating at ISM band (2.45 GHz) and 5G band (3.5 GHz) is proposed in this paper.
Yong Cheng, Hui Liu
doaj   +1 more source

Domain Wall Rebounds Driven by Competing Entropic and Spin‐Transfer Torques in Cylindrical Nanowires

open access: yesAdvanced Functional Materials, EarlyView.
Domain‐wall motion in cylindrical magnetic nanowires driven by nanosecond current pulses. Low current densities efficiently displace domain walls, whereas higher currents cause rebound at the wire ends. The effect results from the interplay between spin‐transfer torque and thermally induced processes, highlighting the role of thermal gradients in ...
Elias Saugar   +11 more
wiley   +1 more source

Dense Nanofibrillar Collagen–Silica Hybrids with High Strength and ECM‐Mimetic Tissue Integration

open access: yesAdvanced Functional Materials, EarlyView.
Dense nanofibrillar collagen–silica hybrids are engineered by synchronizing collagen fibrillogenesis with silica condensation, producing printable scaffolds that unexpectedly approach native extracellular matrix organization and strength. These cell‐free constructs guide endogenous cell‐infiltration, enable localized matrix remodeling, and integrate ...
Norein Norein   +7 more
wiley   +1 more source

Isolation Enhancement for Wideband, Circularly/Dual-Polarized, High-Density Patch Arrays Using Planar Parasitic Resonators

open access: yesIEEE Access, 2019
A planar double-layer hybrid decoupling structure with the polarization-insensitive characteristics is proposed as an effective isolator for wideband, circularly/dual-polarized, high-density patch arrays.
Zhiyuan Chen   +4 more
doaj   +1 more source

Laser polarization of positron beam [PDF]

open access: yes, 2002
For a number of physical studies which are planned to be made with the next generation colliders, it is necessary to use polarized beams of both electrons and positrons.
Potylitsyn, A. P.
core   +2 more sources

Home - About - Disclaimer - Privacy