Results 41 to 50 of about 256,534 (295)

The linear polarization constant of R^n

open access: yes, 2005
The present work contributes to the determination of the n-th linear polarization constant cn(H) of an n-dimensional real Hilbert space H. We provide some new lower bounds on the value of supkyk=1 | hx1, yi · · · hxn, yi |, where x1, . . .
Matolcsi, Máté, Máté Matolcsi
core   +1 more source

Linear-to-Dual-Circular Polarization Decomposition Metasurface Based on Rotated Trimming-Stub-Loaded Circular Patch

open access: yes, 2023
This paper presents a linear-to-dual-circular polarization metasurface decomposer, which decomposes a linearly polarized (LP) planar incident wave into a pair of circular polarized (CP) waves, namely, a right-handed circular polarized (RHCP) wave and a ...
Chongmei Peng   +3 more
core   +1 more source

Simple design of efficient broadband multifunctional polarization converter for X-band applications

open access: yesScientific Reports, 2021
A simple design of a broadband multifunctional polarization converter using an anisotropic metasurface for X-band application is proposed. The proposed polarization converter consists of a periodic array of the two-corner-cut square patch resonators ...
Thi Kim Thu Nguyen   +9 more
doaj   +1 more source

Multi-polarization selective absorber based on terahertz metasurface

open access: yesResults in Physics, 2023
Tunable absorbers attract much attention due to their wide applications, such as integrated optical sensors, multiplexing far-field imaging and so on. In this paper, we design a multi-polarization selective absorber based on terahertz metasurface, whose ...
Yu Tian   +6 more
doaj   +1 more source

On the real linear polarization constant problem

open access: yes, 2006
The present paper deals with lower bounds for the norm of products of linear forms. It has been proved by J. Arias-de-Reyna [2], that the so-called n(th) linear polarization constant c(n)(C-n) is n(n/2), for arbitrary n is an element of N. The same value
Matolcsi, Máté   +3 more
core   +1 more source

Experimental Validation of a Multi-Functional Metasurface for 5G and Satellite Communication

open access: yesIEEE Access
In this article, a single layer, ultrathin, multiband, and multifunctional reflective polarization converting metasurface (PCMS) is presented that can perform linear to linear (LTL) orthogonally with respect to the incident polarization, also called ...
Hilal Rauf   +4 more
doaj   +1 more source

The role of miR‐335‐5p in the redifferentiation of BRAF p.V600E thyroid cancers

open access: yesMolecular Oncology, EarlyView.
The BRAF p.V600E mutation promotes thyroid cancer dedifferentiation and radioiodine resistance. Using a network approach, we identified miR‐335‐5p as a key regulator of BRAF‐mutated thyroid tumors. Restoring miR‐335‐5p increased thyroid‐specific gene expression and iodine uptake in cells and organoids.
Valeria Pecce   +11 more
wiley   +1 more source

Multi-Functional Wideband Metasurface: Perfect Absorber and Linear to Linear and Linear to Circular Polarization Converter

open access: yesIEEE Access
In this paper, a switchable multi-functional wideband metasurface device based on vanadium dioxide (VO2) in the terahertz (THz) region is numerically proposed.
Huu Lam Phan   +2 more
doaj   +1 more source

Graphene-based tunable linear and linear-to-circular polarization converters in the THz band

open access: yesResults in Physics, 2022
A switchable and tunable reflective terahertz (THz) polarization converter based on graphene metamaterial is designed and analyzed. By changing the Fermi energy level of graphene, the converter can achieve broadband linear polarization conversion (LPC ...
Xueguang Yuan   +5 more
doaj   +1 more source

Hijacking emergency granulopoiesis: Neutrophil ontogeny and reprogramming in cancer

open access: yesMolecular Oncology, EarlyView.
Neutrophils are highly plastic innate immune cells; their functions in cancer extend beyond the tumour microenvironment. This Review summarises current understanding of neutrophil maturation and heterogeneity and highlights tumour‐induced granulopoiesis as a systemic programme that expands immature, immunosuppressive neutrophils via tumour‐derived ...
Gabriela Marinescu, Yi Feng
wiley   +1 more source

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