Results 81 to 90 of about 33,884,561 (405)

Effect of SiO2 capping layer on the ferroelectricity of Hf0.5Zr0.5O2 films

open access: yesAIP Advances, 2020
In this paper, SiO2 capping layers were introduced to improve the ferroelectric properties of Hf0.5Zr0.5O2 (HZO) thin films. HZO thin films with the SiO2 capping layers exhibit excellent ferroelectric characteristics.
Minglong Zhai   +4 more
doaj   +1 more source

Predicting the Level of Background Current Noise in Graphene Biosensor through a Non-Covalent Functionalization Process

open access: yesCrystals, 2023
The rapid worldwide spread of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has created a series of problems. Detection platforms based on graphene field-effect transistors (GFETs) have been proposed to achieve a rapid diagnosis of ...
Chao-yi Zhu   +5 more
doaj   +1 more source

Modelling High-frequency Economic Time Series

open access: yes, 2000
The minute-by-minute move of the Hang Seng Index (HSI) data over a four-year period is analysed and shown to possess similar statistical features as those of other markets. Based on a mathematical theorem [S. B. Pope and E. S. C. Ching, Phys.
Bollerslev   +12 more
core   +2 more sources

CMOS OTA-C high-frequency sinusoidal oscillators [PDF]

open access: yes, 1991
Several topology families are given to implement practical CMOS sinusoidal oscillators by using operational transconductance amplifier-capacitor (OTA-C) techniques. Design techniques are proposed taking into account the CMOS OTA's dominant nonidealities.
Huertas Díaz, José Luis   +3 more
core   +1 more source

Sirolimus for Extracranial Arteriovenous Malformations: A Scoping Review of the Evidence in Syndromic and Non‐Syndromic Cases

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Arteriovenous malformations (AVMs) are rare, high‐flow, vascular anomalies that can occur either sporadically or as part of a genetic syndrome. AVMs can progress with serious morbidity and even mortality if left unchecked. Sirolimus is an mTOR inhibitor that is effective in low‐flow vascular malformations; however, its role in AVMs is unclear.
Will Swansson   +3 more
wiley   +1 more source

Time transfer via single‐record TDoA measurements of GNSS satellites using direct cross‐correlation and relative pilot code phases

open access: yesIET Radar, Sonar & Navigation
Radar systems are evolving towards distributed receiver networks. As individual stations might be separated too far to install a cable link, novel methods are required to synchronise individual data records in the time domain.
Erik Busley   +3 more
doaj   +1 more source

High Frequency Peakers: The Faint Sample

open access: yes, 2009
We present a sample of sources with convex radio spectra peaking at frequencies above a few GHz, known as "High Frequency Peakers" (HFPs). A "bright" sample with a flux density limit of 300 mJy at 5 GHz has been presented by Dallacasa et al. (2000). Here
Becker, Dallacasa, Orienti, Tinti
core   +1 more source

High-frequency nanotube mechanical resonators [PDF]

open access: yes, 2012
We report on a simple method to fabricate high-frequency nanotube mechanical resonators reproducibly. We measure resonance frequencies as high as 4.2 GHz for the fundamental eigenmode and 11 GHz for higher order eigenmodes.
Bachtold, A.   +4 more
core   +3 more sources

The Global High Frequency Radar Network

open access: yesFrontiers in Marine Science, 2019
Academic, government, and private organizations from around the globe have established High Frequency radar (hereinafter, HFR) networks at regional or national levels.
H. Roarty   +31 more
semanticscholar   +1 more source

Evaluating the Utility of Paired Tumor and Germline Targeted DNA Sequencing for Pediatric Oncology Patients: A Single Institution Report

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Objective To evaluate the diagnostic yield and utility of universal paired tumor–normal multigene panel sequencing in newly diagnosed pediatric solid and central nervous system (CNS) tumor patients and to compare the detection of germline pathogenic/likely pathogenic variants (PV/LPVs) against established clinical referral criteria for cancer ...
Natalie Waligorski   +9 more
wiley   +1 more source

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