Results 121 to 130 of about 9,656 (299)

Development of phased array probes to operate in time-of-flight diffraction configuration to continuously monitor defect growth in thermal power plants [PDF]

, 2015
A high temperature (HT) structural health monitoring system for pipes that utilises phased array (PA) probes in time-of-flight diffraction (TOFD) configuration to continuously monitor the defect growth over time is being developed, so that when the ...
Carpentier, C, Cheng, L, Gan, TH, Kappatos, V, Kostan, M, Mohimi, A, Nageswaran, C, Selcuk, C, Wrobel, L   +8 more
core  

Development of Phased Array Ultrasonic Testing System Using Distributed Architecture

Journal of Physics: Conference Series
Abstract With more rigorous requirements for reliability and safety of structures and materials, high resolution and fast imaging have been urgent needs of Phased Array Ultrasonic Testing (PAUT). In order to improve the detection resolution and efficiency of complex structures and materials such as ultra-thick carbon steel and honeycomb ...
Kun Wang, Juntao Wang, Jie Mao, Yicheng Zhang, Guoxuan Lian   +4 more
openaire   +1 more source

Functional Metal Complexes for Solar–Light‐Driven Energy Conversion

Advanced Materials, EarlyView.
This review provides an exhaustive summary of the recent advancements of functional metal complexes in solar‐to‐electrical, ‐chemical, and ‐thermal energy conversion, comprising material categories, design strategies, underlying principles of operation, and identified improvement of performances.
Yanyan Qin, Dou Luo, Miao Zhang, Wai‐Yeung Wong   +3 more
wiley   +1 more source

Laser beam shaping for enhanced Zero-Group Velocity Lamb modes generation

, 2016
Optimization of Lamb modes induced by laser can be achieved by adjusting the spatial source distribution to the mode wavelength ($\lambda$). The excitability of Zero-Group Velocity (ZGV) resonances in isotropic plates is investigated both theoretically ...
Bruno, François, Jehanno, Paul, Laurent, Jérôme, Prada, Claire, Royer, Daniel   +4 more
core   +3 more sources

An Energy Focusing Flexible and Lightweight Acoustic Metamaterial for Enhanced Ultrasound Power Transfer

Advanced Materials, EarlyView.
A flexible and lightweight acoustic metamaterial composed of air cavities encased in polydimethylsiloxane (PDMS) is introduced to enhance ultrasound power transfer. The metamaterial leverages the strong reflectivity of air cavity boundaries to concentrate incoming ultrasound, thereby improving the performance of piezoelectric energy harvesters ...
Hyung‐Suk Kwon, Ziqi Yu, Xiaopeng Li, Ercan M. Dede, Taehwa Lee   +4 more
wiley   +1 more source

In-Suit Doppler Technology Assessment [PDF]

The objective of this program was to perform a technology assessment survey of non-invasive air embolism detection utilizing Doppler ultrasound methodologies.
Greene, Ernest R., Nadeau, John J., Schulze, Arthur E.   +2 more
core   +1 more source

Robotic path planning for non-destructive testing of complex shaped surfaces [PDF]

, 2014
The requirement to increase inspection speeds for non-destructive testing (NDT) of composite aerospace parts is common to many manufacturers. The prevalence of complex curved surfaces in the industry provides significant motivation for the use of 6 axis ...
Cooper, Ian, Mineo, Carmelo, Nicholson, Pascual Ian, Pierce, Stephen Gareth   +3 more
core  

Beyond Earth: Resilience of Quasi‐2D Perovskite Solar Cells in Space

Advanced Materials, EarlyView.
In the article (DOI: 10.1002/adma.202520433), Christoph Putz and co‐workers demonstrate rigid quasi‐2D perovskite solar cells operating in low Earth orbit, delivering stable power for more than 100 days under real‐space conditions. In‐orbit performance is correlated with extensive ground‐based thermal and proton‐irradiation studies on rigid and ...
Christoph Putz, Lukas E. Lehner, Stepan Demchyshyn, Bekele Hailegnaw, Phillip Jahelka, Magdalena Breitwieser, Sercan Özen, Andrea Denker, Jürgen Bundesmann, Alina Hanna Dittwald, Dilara Karabulut, Philipp Tockhorn, Steve Albrecht, Felix Lang, Markus C. Scharber, Michael D. Kelzenberg, Harry A. Atwater, Martin Kaltenbrunner   +17 more
wiley   +1 more source

Scalable and Multifunctional PAN‐MXene Composite Fibers for Thermal Management, Photothermal Conversion, Energy Harvesting, and Sensing for Wearable Applications

Advanced Materials, EarlyView.
Electrospun PAN‐MXene nanofibers and yarns integrate enhanced thermal conductivity, photothermal conversion, and triboelectric energy harvesting within a flexible architecture. Interconnected MXene networks promote efficient phonon transport, while their surface chemistry strengthens tribo‐negative behavior, enabling a high power density of 432.7 mW m ...
Ahmadreza Moradi, Piotr K. Szewczyk, Urszula Stachewicz   +2 more
wiley   +1 more source

Application of CIVA Simulation in Ultrasonic Testing Probe Selection for Main Vessel Welded Structure of China Experimental Fast Reactor

Yuanzineng kexue jishu
The China Experimental Fast Reactor (CEFR) represents a significant advancement in China’s nuclear energy sector, with its main vessel serving as the primary safety barrier enclosing the reactor core.
LUO Tao, GAO Fuhai, WANG Lubo
doaj   +1 more source