Results 271 to 280 of about 56,406 (306)

The dual polarization of an abelian variety

Archiv der Mathematik, 1999
Let \(X\) denote a polarized abelian variety of dimension \(g\) over the complex field \(\mathbb C\) and let \(L\) be an ample line bundle such that \(H=c_1(L)\in H^2(X,\mathbb Z)\) is the given polarization on \(X\), having degree \(d=h^0(L)\). We denote by \(\varphi_L:X\to\widehat X\) the isogeny induced by \(L\).
Birkenhake, Christina, Lange, Herbert
openaire   +1 more source

Dual polarized transmitarray lens

The 8th European Conference on Antennas and Propagation (EuCAP 2014), 2014
A new dual polarization lens working at the frequency of 30GHz has been designed and simulated. The design of the unit cell is based on a structure of four stacked patches coupled by a symmetric cross that achieves a 360-degree phase-shift for both polarizations by varying a different dimension of the patches for each one.
Enrique G. Plaza, German Leon, Susana Loredo, Fernando Las-Heras   +3 more
openaire   +1 more source

Rain Observations by a Multifrequency Dual-Polarized Radiometer

IEEE Geoscience and Remote Sensing Letters, 2009
During the Convective and Orographically Induced Precipitation Study, advanced microwave radiometer for rain identification has continuously acquired measurements at the Atmospheric Radiation Measurement Mobile Facility in the Black Forest from the beginning of August until December 2007.
Alessandro Battaglia, Pablo Saavedra, Clemens Simmer, Thomas Rose 0002   +3 more
openaire   +2 more sources

Dual-polarized ring lasers

IEEE Journal of Quantum Electronics, 1977
Simultaneous laser oscillation of four nondegenerate polarization and propagation direction eigenstates of a single TEM 00 mode was observed in a ring laser cavity. The observed polarization and frequency properties of the ring laser were analyzed in terms of the Jones matrix calculus.
V. Sanders, R. Kiehn
openaire   +1 more source

The Elephant in Dual-Polarized Imaging Radar

2006 IEEE International Symposium on Geoscience and Remote Sensing, 2006
The elephant-in-the-room: It's so obvious, why didn't we see it before? In the context of "dual-polarized radar", especially Earth-observing synthetic aperture radar, the elephant is simply the relative phase between the two image outputs of a "dual-polarized" SAR.
openaire   +1 more source

A Chiral Dual‐Core Organoboron Structure Realizes Dual‐Channel Enhanced Ultrapure Blue Emission and Highly Efficient Circularly Polarized Electroluminescence

Advanced Materials, 2022
Zhongfu An, You-Xuan Zheng, Jing-Lin zuo
exaly  

A Linearly-Polarized-Feed Dual-Circularly Polarized Dual-Beam Transmitarray With Independent Beam Control

IEEE Antennas and Wireless Propagation Letters, 2022
Shuyang Yang, Zehong Yan, Peng Liu
exaly  

Hierarchical fusion of optical and dual-polarized SAR on impervious surface mapping at city scale

ISPRS Journal of Photogrammetry and Remote Sensing, 2022
Sun genyun, Aizhu Zhang, Xiuping Jia
exaly  

A Low-Profile Dual-Band Dual-Circularly Polarized Folded Transmitarray Antenna With Independent Beam Control

IEEE Transactions on Antennas and Propagation, 2022
Haoyu Lei, Ying Liu, Yongtao Jia
exaly  

A Novel Wideband Tightly Coupled Dual-Polarized Reflectarray Antenna

IEEE Transactions on Antennas and Propagation, 2023
Wenting Li, Yejun He, Long Zhang
exaly