Results 71 to 80 of about 58,340 (242)

High‐Temperature Stable Narrowband Near‐Infrared Phosphor‐Converted Light‐Emitting Diode Based on Melt‐Grown CsPbCl3: Yb3+ Crystal

open access: yesRare Metals, EarlyView.
ABSTRACT Narrowband near‐infrared (NIR) phosphor‐converted light‐emitting diodes (pc‐LEDs) featuring low full‐width at half maximum (FWHM) and high conversion efficiency are crucial for chemical content evaluation, light therapy, and bioimaging.
Chunshen Li   +4 more
wiley   +1 more source

The “Lost Guardians” of Dante’s Inferno: Medium Wave Infrared Imaging Investigations of a XIV Century Illuminated Manuscript

open access: yesHeritage, 2022
On the occasion of the 700th centenary of the death of Dante Alighieri, medium wave infrared imaging analysis of illuminations of the XIV-century code of the Divina Commedia (MS.
Noemi Orazi   +6 more
doaj   +1 more source

Air-coupled acoustic thermography for in-situ evaluation [PDF]

open access: yes, 2010
Acoustic thermography uses a housing configured for thermal, acoustic and infrared radiation shielding. For in-situ applications, the housing has an open side adapted to be sealingly coupled to a surface region of a structure such that an enclosed ...
Winfree, William P.   +2 more
core   +1 more source

Mechanical performance of composite bonded joints in the presence of localised process-induced zero-thickness defects [PDF]

open access: yes, 2018
Processing parameters and environmental conditions can introduce variation into the performance of adhesively bonded joints. The effect of such variation on the mechanical performance of the joints is not well understood.
Addepalli, S.   +4 more
core   +2 more sources

Portable Radar for Noncontact Heart Rate Monitoring and Estrus Detection in Dairy Cows

open access: yesIEEJ Transactions on Electrical and Electronic Engineering, EarlyView.
This study introduces a portable radar system for real‐time monitoring of respiratory and heart rates in dairy cows. It uses millimeter‐wave Frequency Modulated Continuous Wave (FMCW) radar to perform noncontact physiological sensing, reducing behavioral disturbance. The radar system's design prioritizes portability, cost‐effectiveness, and robustness,
Yingxiu Li   +7 more
wiley   +1 more source

Principal component analysis for fast and automated thermographic inspection of internal structures in sandwich parts [PDF]

open access: yesJournal of Sensors and Sensor Systems, 2014
Rising demand and increasing cost pressure for lightweight materials – such as sandwich structures – drives the manufacturing industry to improve automation in production and quality inspection.
D. Griefahn, J. Wollnack, W. Hintze
doaj   +1 more source

Infrared Thermography for Weld Inspection: Feasibility and Application [PDF]

open access: yes, 2018
Traditional ultrasonic testing (UT) techniques have been widely used to detect surface and sub-surface defects of welds. UT inspection is a contact method which burdens the manufacturer by storing hot specimens for inspection when the material is cool ...
Collins, William   +2 more
core   +1 more source

Comparison of Cooled and Uncooled IR Sensors by Means of Signal-to-Noise Ratio for NDT Diagnostics of Aerospace Grade Composites

open access: yesSensors, 2020
This work aims to address the effectiveness and challenges of non-destructive testing (NDT) by active infrared thermography (IRT) for the inspection of aerospace-grade composite samples and seeks to compare uncooled and cooled thermal cameras using the ...
Shakeb Deane   +9 more
doaj   +1 more source

Depth estimation of inner wall defects by means of infrared thermography [PDF]

open access: yes, 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  

Non‐Equilibrium Construction of Layered Ruddlesden–Popper La2NiO4 Porous Nanosheets for Efficient Urea Electrooxidation

open access: yesCarbon Neutralization, Volume 5, Issue 2, March 2026.
This study demonstrates that microwave‐shock driven construction of 2D Ruddlesden–Popper La2NiO4 with regulated oxygen defects overcomes the persistent bottleneck of sluggish C–N cleavage and intermediate accumulation, unlocking fast charge transport and high‐efficiency urea electrooxidation.
Mingjie Wang   +7 more
wiley   +1 more source

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