Results 51 to 60 of about 5,108,447 (194)

Implementation of in Process Surface Metrology for R2R Flexible PV Barrier Films [PDF]

, 2015
Thin functional barrier layers of aluminum oxide (Al2O3) that are used particularly in photovoltaic (PV) modules to prevent the possibility of water vapor ingress should be applied over the entire PV surface without any defects.
Gao, F., Muhamedsalih, Hussam, Elrawemi, Mohamed, Blunt, Liam, Fleming, Leigh, Gao, Feng   +5 more
core   +4 more sources

Nanoparticle‐Mediated Bubble Suppression During Droplet Solidification for Mechanical Reinforcement

Advanced Science, EarlyView.
Nanoparticles mediate droplet solidification by raising nucleation temperature, refining dendrites, and slowing freezing‐front advance, thereby suppressing trapped air bubbles in droplet‐based 3D printing. This strategy reduces bubble volume fraction by ∼35% and increases compressive strength by up to 39%, offering a low‐cost route to stronger printed ...
Runmiao Gao, Xuan Zhang, Mengjie Song, Ronggui Yang, Keke Shao, Jun Shen, Long Zhang, Shuhuai Yao, Yubing Guo, Ruzhu Wang, Christopher Yu Hang Chao   +10 more
wiley   +1 more source

Disc machine testing to assess the life of surface-damaged railway track

, 2001
Wheel-rail contacts operate in an arduous and contaminated environment. Railway track running surfaces can become damaged either prior to or during operation.
Gao, N., Grieve, D.G., Dwyer-Joyce, R.S.
core   +1 more source

Methodology to Detect Rail Corrugation from Vehicle On-Board Measurements by Isolating Effects from Other Sources of Excitation

Applied Sciences
Detecting track geometry and rail surface defects using on-board vehicle monitoring systems is a key issue for rail infrastructure managers to increase availability and reliability while reducing the costs associated with monitoring and maintenance. Rail
Anna De Rosa, Bernd Luber, Gabor Müller, Josef Fuchs   +3 more
doaj   +1 more source

Real time detection system for rail surface defects based on machine vision

EURASIP Journal on Image and Video Processing, 2018
The detection of rail surface defects is an important part of railway daily inspection, according to the requirements of modern railway automatic detection technology on real-time detection and adaptability.
Yongzhi Min, Benyu Xiao, Jianwu Dang, Biao Yue, Tiandong Cheng   +4 more
doaj   +1 more source

Expanded statistical analysis of squats on the Great Britain (GB) mainline network

Heliyon, 2023
Squat defects are one of the most common rail surface defects. Significant research effort has gone into understand squat defects over the last 10 years which has brought about important developments in the understanding of their initiation mechanism ...
G. Tucker, K. Sztrauch, A. Bevan, Y. Muhamedsalih, S. Hawksbee, P. Shackleton, P. Mistry, B. Whitney, M. Burstow   +8 more
doaj   +1 more source

A Comprehensive Review on Additive Manufacturing of Smart Components: Technologies, Applications, and Future Scope

Advanced Intelligent Systems, EarlyView.
How can additive manufacturing enable components that sense, adapt, heal, and power themselves? This review synthesizes recent advances in smart functionalities, manufacturing technologies, and intelligent design strategies, revealing a pathway toward fully integrated, autonomous, and multifunctional systems across diverse engineering sectors. Additive
Aiswarya Rony, P. M. Ushasree, Michael Short, Jinoop Arackal Narayanan   +3 more
wiley   +1 more source

Ultrasonic surface wave propagation and interaction with surface defects

, 2007
Electromagnetic acoustic transducers (EMATs) are non-contact ultrasonic transducers capable of generating wideband surface acoustic waves on metallic samples.
Fan, Y., Dixon, S., Edwards, R. S. (Rachel S.), Jian, X., Fan, Yichao   +4 more
core   +1 more source

Zero-Shot Texture Analysis and Regression-Based Deformation Recognition for Rail Anomaly Detection

IEEE Access
This paper presents a novel anomaly detection framework for rail systems, integrating zero-shot texture analysis and regression-based deformation recognition to monitor rail defects effectively.
Mikel Lainsa, Daeyoung Kim
doaj   +1 more source

Mechanisms and Management of Acquired Aseptic Intracardiac Communications After Transcatheter Aortic Valve Implantation: Single‐Center Case Series Insights

Catheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background Acquired aseptic intracardiac communications (AICCs) are rare but clinically relevant structural complications following transcatheter aortic valve implantation (TAVI), typically resulting from mechanical injury to the aortic annulus, interventricular septum, or adjacent structures.
Geza Fontos, Abdelkrim Ahres, Marton Vertesaljai, Tunde Pinter, Zsolt Piroth, Matyas Pal, Peter Andreka   +6 more
wiley   +1 more source