Results 1 to 10 of about 8,030,235 (300)

High Frequency Ventilation [PDF]

open access: yesPediatric Clinics of North America, 1987
High frequency ventilation (HFV) presents a new respiratory therapy modality that has taught us much about the theories of gas transport in the lung. Both experimental and clinical applications are summarized. Although the future clinical role of HFV remains uncertain, pediatric applications and investigation continue at the forefront of this new ...
R C, Wetzel, F R, Gioia
  +11 more sources

Simulation of TiN/HfO2/Pt memristor I–V curve for different conductive filament thickness [PDF]

open access: yesModern Electronic Materials, 2021
The operation of the TiN/HfO2/Pt bipolar memristor has been simulated by the finite elements method using the Maxwell steady state equations as a mathematical basis.
Andrey N. Aleshin   +2 more
doaj   +3 more sources

High specificity THz metamaterial-based biosensor for label-free transcription factor detection in melanoma diagnostics

open access: yesScientific Reports, 2023
In this work, we present a promising diagnostic tool for melanoma diagnosis. With the proposed terahertz biosensor, it was possible to selectively and sensitively detect the early growth response protein 2, a transcription factor with an increased ...
Merle Richter   +7 more
doaj   +1 more source

High Frequency Audiometry [PDF]

open access: yesAnnals of Otology, Rhinology & Laryngology, 1984
After a brief discussion of the past use of and clinical need for high frequency hearing tests, a new technique is described that uses a special electric transduction mode: a 60-kHz carrier frequency is modulated by the desired audiofrequency. The combined signal is applied to the skin over the mastoids by Mylar-covered electrodes.
J, Tonndorf, B, Kurman
openaire   +2 more sources

Calibration to Mitigate Near-Field Antennas Effects for a MIMO Radar Imaging System

open access: yesSensors, 2021
A calibration method for a high-resolution hybrid MIMO turntable radar imaging system is presented. A line of small metal spheres is employed as a test pattern in the calibration process to measure the position shift caused by undesired antenna effects ...
Ha Hoang   +3 more
doaj   +1 more source

High Responsivity and Ultra-Low Detection Limits in Nonlinear a-Si:H p-i-n Photodiodes Enabled by Photogating

open access: yesPhotonic Sensors, 2023
Photodetectors operating at the wavelength in the visible spectrum are key components in high-performance optoelectronic systems. In this work, massive nonlinearities in amorphous silicon p-i-n photodiodes enabled by the photogating are presented ...
Andreas Bablich   +4 more
doaj   +1 more source

High Frequency Ventilation [PDF]

open access: yesInternational Anesthesiology Clinics, 1986
Over the last six years high-frequency ventilation has been extensively evaluated both in the clinical and laboratory settings. It is now no longer the great mystery it once was, and it is now no longer believed (as many had hoped), that it will solve all the problems associated with mechanical pulmonary ventilation. Although the technique is safe and
M F, Babinski, R B, Smith
openaire   +4 more sources

Investigation on Dynamic Characteristics of AlGaN/GaN Lateral Schottky Barrier Diode

open access: yesMicromachines, 2021
This work investigates the transient characteristics of an AlGaN/GaN lateral Schottky barrier diode (SBD) and its recovery process with a dedicated dynamic measurement system.
Haitao Zhang   +7 more
doaj   +1 more source

Investigation of Frequency Scanning Printed Bruce Array Antenna

open access: yesIEEE Access, 2020
A printed edge-fed counterpart of wire Bruce array antenna, with open-stopband mitigation at broadside, is presented. The proposed antenna comprises of 11 meandered unit-cells periodically modulated in congruence with wire Bruce array antenna's theory ...
Zeeshan Ahmed   +3 more
doaj   +1 more source

Investigation on Capacitance Collapse Induced by Secondary Capture of Acceptor Traps in AlGaN/GaN Lateral Schottky Barrier Diode

open access: yesMicromachines, 2022
In this study, a dedicated dynamic measurement system was used to investigate the transient capacitance and recovery process of AlGaN/GaN lateral Schottky barrier diodes (SBDs).
Haitao Zhang   +7 more
doaj   +1 more source

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