Results 91 to 100 of about 54,060 (306)

Similarities between circular polarization in Galactic jet sources and AGN

, 2003
We compare the observational properties of the circular polarization in Galactic jet sources with that observed in AGN, and outline the constraints they place on the mechanism responsible for the circular polarization. We also discuss the implications of
Hannikainen, D., Sault, R., Jauncey, D., Hannikainen, DC, Jauncey, DL, Wu, K, Sault, RJ, Macquart, JP, Macquart, Jean-pierre, Wu, K.   +9 more
core   +2 more sources

Support‐Controlled Reaction Pathways via Dynamic Sulfur‐Mediated Interfaces for Selective Urea Electrolysis

Advanced Functional Materials, EarlyView.
Sulfur‐doped graphitized carbon nanofibers act as adaptive catalyst–support platforms, enabling dynamic sulfur‐mediated reconstruction and strong metal–support interactions. This unique behavior enhances catalyst stability and controls reaction pathways, achieving highly selective urea oxidation (∼92% N2) coupled with efficient hydrogen evolution ...
Melanie Guillén‐Soler, Lucía Vizcaíno‐Anaya, Ahmad Tayyebi, José Manuel Vila‐Fungueiriño, María del Carmen Giménez‐López   +4 more
wiley   +1 more source

Ring-slot-coupled microstrip patch antenna for circular polarization

, 2012
[[abstract]]A new design of aperture-coupled microstrip antennas for circular polarization (CP) is presented. The CP microstrip antenna is excited by using a series microstrip-line-feed configuration through the coupling of a ring slot in the ground. The
Lee, Yi-Lung; Chen, Tsair-Rong; Row, Jeen-Sheen
core  

Circular polarization signals of cloudy (exo)planets

, 2018
The circular polarization of light that planets reflect is often neglected because it is very small compared to the linear polarization. It could, however, provide information on a planet’s atmosphere and surface, and on the presence of life, because ...
Rossi, L.C.G. (author), Stam, D.M. (author), L. Rossi, Rossi, L.C.G., D. M. Stam, Stam, D.M.   +5 more
core   +1 more source

Nano‐Scale Characterization of Impurities Segregation in Solid Oxide Electrolysis Cells

Advanced Functional Materials, EarlyView.
Cathodic polarization induces impurity segregation in Ni, forming an amorphous Na─Al─Si─O amorphous phase at grain boundaries. Under ultralow oxygen partial pressure, multiple elements dissolve, migrate, and reoxidize within the metal. A patterned model system provides direct nanoscale evidence, clarifying the mechanism of polarization‐driven impurity ...
Zhongtao Ma, Qingjie Wang, Bowen Li, Vasileios Bilalis, Søren Bredmose Simonsen, Ming Chen   +5 more
wiley   +1 more source

Circular polarization microstrip antennas using single fed em coupled ring resonators

, 2010
In wireless system, an antenna used to facilitate the two ways communications system. Circular Polarization (CP) antenna has advantages in term of reflectivity, multipath and more effective for establishing and maintaining communication links compare to ...
Mohamad Yusop, Muhamad Amiruddin
core  

TRIANGULAR SLOT CIRCULAR PATCH ANTENNA FOR CIRCULAR POLARIZATION RECONFIGURABILITY

, 2020
This paper proposes a reconfigurable microstrip patch antenna with polarization states being switched between left hand circular polarization (LHCP) and right hand circular polarization (RHCP).
Anubhav Kanwaria, Uma Shankar Modani
core  

Spin Polarization Simulations for the Future Circular Collider e⁺e⁻ using BMAD

, 2023
Measurements of particle properties with unprecedented accuracy in the Future Circular Collider e⁺e⁻ (FCC-ee) are reliant on the high precision center-of-mass energy calibration, which could be realized via resonant depolarization measurements.
Pieloni, Tatiana, Wu, Yi, Van Riesen-Haupt, Léon, Carlier, Felix   +3 more
core   +1 more source

Shaping Matter with Acoustic Waves: From Particles to Functional Structures

Advanced Functional Materials, EarlyView.
Acoustic‐directed assembly is reviewed as a materials‐oriented strategy for organizing particles, polymers, metals, and biological systems into functional structures. The review distinguishes reversible manipulation from permanent structure formation through medium fixation, particle fixation, and in situ material generation, highlighting routes toward
Avraham Kenigsberg, Shelly Zlotnikov, Maya Fiorentino, Yuval Elias, Ornit Nagler‐Avramovitz, Hagay Shpaisman   +5 more
wiley   +1 more source

Synchrotron Circular Polarization in Gamma-Ray Burst Prompt Optical Emission: Relativistic Thermal Electron Contribution

The Astrophysical Journal
Synchrotron circular polarization of a nonthermal power-law electron distribution in gamma-ray bursts (GRBs) has been studied. However, some numerical simulations have shown that the resulting distribution of electrons is a combination of a thermal ...
Kangfa Cheng, Jirong Mao, Xiaohong Zhao, Hongbang Liu, Zhegeng Chen, Gaojin Yu, Zhifu Chen   +6 more
doaj   +1 more source