Results 91 to 100 of about 94,464 (307)

Measuring polarization by reduced-form indices [PDF]

An abbreviated or reduced-form monotonic polarization index is an increasing function of the between-group term and a decreasing function of the within-group term of a population subgroup decomposable inequality index.
Bhargav Maharaj, Satya R. Chakravarty
core  

Dual-pump push-pull polarization control using stimulated Brillouin scattering [PDF]

Stimulated Brillouin scattering (SBS) amplification of probe signals is highly polarization dependent. Maximum and minimum gain values are associated with a pair of orthogonal states of polarization (SOP), which are related to the pump SOP.
Thévenaz, Luc, Shmilovitch, Zohar, Primerov, Nikolay, Zadok, Avi, Eyal, Avishay, Tur, Moshe, Chin, Sanghoon   +6 more
core   +1 more source

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

Advanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein, Tiago Carneiro Gomes, Eliza Ng, Simon Rondeau‐Gagné, Tricia Breen Carmichael   +4 more
wiley   +1 more source

Adaptive Dual-Polarization Filtering Method for Countering Active Jamming

International Journal of Antennas and Propagation, 2020
In order to counter active jamming, an adaptive polarization filtering method based on dual polarization radar is put forward. First, the signal flow principle of the dual polarization radar and its signal model are introduced.
Qiang Zhang, Rui Zhou, Xianbo Shi, Yixin Zhao   +3 more
doaj   +1 more source

Control of Polarization and Polar Helicity in BiFeO3 by Epitaxial Strain and Interfacial Chemistry

Advanced Functional Materials, EarlyView.
In BiFeO3 thin films, the interplay of interfacial chemistry, electrostatics, and epitaxial strain is engineered to stabilize homohelicity in polarization textures at the domain scale. The synergistic use of a Bi2O2‐terminated Aurivillius buffer layer and a highly anisotropic compressive epitaxial strain offers new routes to control the polar‐texture ...
Elzbieta Gradauskaite, Lilia Huynh, Natascha Gray, Quintin N. Meier, Marta D. Rossell, Morgan Trassin   +5 more
wiley   +1 more source

Ferroelectricity in Antiferromagnetic Wurtzite Nitrides

Advanced Functional Materials, EarlyView.
We establish MnSiN2${\rm MnSiN}_2$ and MnGeN2${\rm MnGeN}_2$ as aristotypes of a new multiferroic wurtzite family that simultaneously exhibits ferroelectricity and antiferromagnetism with altermagnetic spin splitting. By strategically substituting alkaline‐earth metals, we predict new materials with coexisting switchable polarization, spin texture, and
Steven M. Baksa, Lin‐Ding Yuan, Stephen D. Wilson, James M. Rondinelli   +3 more
wiley   +1 more source

On isometric full embeddings of symplectic dual polar spaces into Hermitian dual polar spaces

Linear Algebra and its Applications, 2009
Let \({\mathbb K}'\), \({\mathbb K}\) be (finite or infinite) fields such that \({\mathbb K}'\) is a quadratic Galois extension of \({\mathbb K}\) and let \(\theta\) denote the unique nontrivial element in \(\text{Gal}({\mathbb K}'/{\mathbb K})\). The dual polar space \(DW(2n-1,{\mathbb K})\), \(n\geq\,2\), has up to equivalence a unique isometric full
openaire   +2 more sources

Dual-frequency circularly-polarized microstrip antenna with switchable polarization sense

, 2012
[[abstract]]A dual-frequency circularly-polarized (CP) microstrip antenna capable of switching polarization sense is presented. The antenna is fed by a microstrip line through aperture coupling.
Wu, Jia-Feng; Row, Jeen-Sheen; Wong, Kin-Lu
core  

Polarizable Vanadium Dipoles Promote Water Dissociation on Vanadium‐Based Metal Organic Framework

Advanced Functional Materials, EarlyView.
The polarization of unpaired V 3d electrons weakens the H─O bond to improve water dissociation by the dual Vδ+:O─H and Pλ−:H─O coupling hydrogen bonds formation and relaxation. P@V‐MOF electrocatalyst shows low overpotentials (94 mV in acid, 178 mV in neutral, and 77 mV in alkaline solutions) with excellent stability for effective overall water ...
Xinjuan Liu, Jun Xu, Minmin Fan, Jingcheng Xu, Mengyuan Li, Yun Gong, Weiwei Yang, Lei Li, Yong Zhou, Deqiang Zhao, Yuhua Xue, Xingtao Xu, Chang Q. Sun, Liming Dai   +13 more
wiley   +1 more source

An Efficient CSI Feedback Scheme for Dual-Polarized Massive MIMO

IEEE Access, 2018
As an effective solution to the tradeoff between array size and the number of antenna elements, dual-polarization antenna is widely utilized in massive MIMO systems.
Feng Zheng, Yijian Chen, Bowen Pang, Chen Liu, Shichuan Wang, Dewen Fan, Jie Zhang   +6 more
doaj   +1 more source