Results 51 to 60 of about 6,856 (205)
Dynamic Transconductance Dispersion Characterization of Channel Hot-Carrier Stressed 0.25μm AlGaN/GaN HEMTs [PDF]
, 2012 Using the dynamic transconductance frequency dispersion technique, we characterize unstressed and hot-electron stressed short-channel AlGaN/GaN high-electron-mobility transistors.
Kuball, M., Silvestri, M., Uren, M. J.
core +2 more sources
Advanced Electronic Materials, EarlyView.This study introduces a thin‐film‐type heat‐generating device that uses laser induced graphene (LIG) on a poly(D, L‐lactic) acid film, which realizes both resistance heating by direct current application and photothermal conversion heating by near‐infrared light irradiation.
Masato Saito +4 more
wiley +1 more source
Fatigue of Aircraft Structures, 2019 This paper presents two techniques of active thermography i.e. the pulsed thermography technique and the step heating technique. The aim of this article is to compare these two techniques and present the possibilities, advantages and limitations of their
Kamińska Paulina +3 more
doaj +1 more source
Inspection Detectability Improvement for Metal Defects Detected by Pulsed Infrared Thermography
Photonic Sensors, 2019 Aiming at the drawbacks of low contrast and high noise in the thermal images, a novel method based on the combination of the thermal image sequence reconstruction and the first-order differential processing is proposed in this work, which is comprised of
Zhengwei Yang +5 more
doaj +1 more source
Transient Thermoreflectance for Gate Temperature Assessment in Pulse Operated GaN-based HEMTs [PDF]
, 2016 An experimental method to measure the gate metal temperature of GaN-based HEMTs is demonstrated. The technique is based on transient thermoreflectance measurements performed from the backside of the device.
Blanck, Herve +5 more
core +2 more sources
Advanced Intelligent Systems, EarlyView.This study proposes a deep learning approach to evaluate the fatigue crack behavior in metals under overload conditions. Using digital image correlation to capture the strain near crack tips, convolutional neural networks classify crack states as normal, overload, or recovery, and accurately predict fatigue parameters.
Seon Du Choi +5 more
wiley +1 more source
The methodology for defect quantification in concrete using IR thermography
Journal of Civil Engineering and Management, 2017 This paper presents a procedure for detecting and quantifying defects in reinforced concrete structures by us-ing the method of active infrared thermography (IRT).
Bojan Milovanović +2 more
doaj +1 more source
Depth estimation of inner wall defects by means of infrared thermography [PDF]
, 2009 There two common methods dealing with interpreting data from infrared thermography: qualitatively and quantitatively. On a certain condition, the first method would be sufficient, but for an accurate interpretation, one should undergo the second one ...
Mohd. Mokji, Musa +1 more
core
Pulsed Phase Thermography analysis on cylindrical geometry
Proceedings of the 2014 International Conference on Quantitative InfraRed Thermography, 2014 Goal of this work is the characterization of flaws in cylindrical geometry exploiting Pulse Phase Thermography (PPT), a Non-Destructive Testing method belonging to the Infrared Thermography category. The experiments are conducted on a hollow semicylindrical Plexiglas pipe section, with an outer and an inner diameter, respectively, of 150 mm and 130 mm.
L. SALVI +4 more
openaire +2 more sources
Photothermal CO2 Hydrogenation: Reactions, Mechanisms, and Catalyst Design
Carbon Energy, EarlyView.Reactions, mechanisms, and catalyst design for photothermal CO2 hydrogenation. ABSTRACT Photothermal CO2 hydrogenation has attracted extensive attention because it provides a green and sustainable approach to fuel and chemicals production. The photothermal catalyst plays a critical role in CO2 conversion through a range of reactions.
Shuai Yan +15 more
wiley +1 more source