Results 71 to 80 of about 16,422,172 (350)

Strategies for Managing Charge in Electron-Beam Lithography on Glass

Photonics
Optical metasurfaces fabricated via electron beam lithography (EBL) are increasingly pivotal for biosensing and bioimaging applications. However, charge accumulation on insulating glass substrates persists as a critical barrier, causing distortion of the
Zhongyang Liu, Yue Chen, Leyang Dang, Wenwu Zhang, Luwei Wang, Junle Qu   +5 more
doaj   +1 more source

High gain frequency scanning antenna using dumbbell‐shaped inclined slots and parallel plate waveguide polariser

IET Microwaves, Antennas & Propagation, 2022
A high gain vertically polarised travelling‐wave frequency scanning array antenna fed by a meander rectangular waveguide is presented for Ku‐band operation.
Taher Badawy, Thomas Bertuch, Claudius Loecker, Peter Knott   +3 more
doaj   +1 more source

Block-iterative frequency-domain methods for Maxwell's equations in a planewave basis.

Optics Express, 2001
We describe a fully-vectorial, three-dimensional algorithm to compute the definite-frequency eigenstates of Maxwell's equations in arbitrary periodic dielectric structures, including systems with anisotropy (birefringence) or magnetic materials, using ...
Steven G. Johnson, J. Joannopoulos
semanticscholar   +1 more source

Frequency stability of a wavelength meter and applications to laser frequency stabilization [PDF]

, 2015
Interferometric wavelength meters have attained frequency resolutions down to the MHz range. In particular, Fizeau interferometers, which have no moving parts, are becoming a popular tool for laser characterization and stabilization.
Didier, Alexandre, Kersalé, Yann, Lacroûte, Clément, Millo, Jacques, Saleh, Khaldoun   +4 more
core   +1 more source

Predicting Chronicity in Children and Adolescents With Newly Diagnosed Immune Thrombocytopenia at the Timepoint of Diagnosis Using Machine Learning‐Based Approaches

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Objectives To identify predictors of chronic ITP (cITP) and to develop a model based on several machine learning (ML) methods to estimate the individual risk of chronicity at the timepoint of diagnosis. Methods We analyzed a longitudinal cohort of 944 children enrolled in the Intercontinental Cooperative immune thrombocytopenia (ITP) Study ...
Severin Kasser, Alice Bizeul, Meera Chitlur, Hugo Donato, Jelena Roganovic, Julia E. Vogt, Thomas Kühne   +6 more
wiley   +1 more source

The Frequency of Ras Mutations in Cancer

Cancer Research, 2020
Ras is frequently mutated in cancer, however, there is a lack of consensus in the literature regarding the cancer mutation frequency of Ras, with quoted values varying from 10%–30%. This variability is at least in part due to the selective aggregation of
I. Prior, Fiona E. Hood, J. Hartley
semanticscholar   +1 more source

Mid-IR frequency measurement using an optical frequency comb and a long-distance remote frequency reference

, 2012
We have built a frequency chain which enables to measure the absolute frequency of a laser emitting in the 28-31 THz frequency range and stabilized onto a molecular absorption line. The set-up uses an optical frequency comb and an ultrastable 1.55 $\mu$m
Amy-Klein, Anne, Auguste, Frédéric, Chanteau, Bruno, Chardonnet, Christian, Coq, Yann Le, Darquié, Benoît, Lopez, Olivier, Santarelli, Giorgio, Zhang, Wei   +8 more
core   +2 more sources

A Systematic Review of Evidence on the Clinical Effectiveness of Surveillance Imaging in Children With Medulloblastoma and Ependymoma

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Surveillance imaging aims to detect tumour relapse before symptoms develop, but it's unclear whether earlier detection of relapse leads to better outcomes in children and young people (CYP) with medulloblastoma and ependymoma. This systematic review aims to identify relevant literature to determine the efficacy of surveillance magnetic ...
Lucy Shepherd, Melissa Taylor, Helen Fulbright, Bob Phillips   +3 more
wiley   +1 more source

High Frequency of SARS-CoV-2 RNAemia and Association With Severe Disease [PDF]

, 2020
Catherine A. Hogan, Bryan Stevens, Malaya K. Sahoo, ChunHong Huang, Natasha Garamani, Saurabh Gombar, Fumiko Yamamoto, Kanagavel Murugesan, Jason H. Kurzer, James L. Zehnder, Benjamin A. Pinsky   +10 more
openalex   +1 more source

Frequency permutation arrays

, 2005
Motivated by recent interest in permutation arrays, we introduce and investigate the more general concept of frequency permutation arrays (FPAs). An FPA of length n=m lambda and distance d is a set T of multipermutations on a multiset of m symbols, each ...
Bailey, Brouwer, Carlitz, Chu, Chu, Colbourn, Colbourn, Das, Ding, Dénes, Even, Huczynska, Laywine, Lidl, Luo, Svanstr¨m, Torre   +16 more
core   +2 more sources