Results 51 to 60 of about 253,309 (213)

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, Guangjie Kou, Yin Li, Gan Tian, Wei Zhang, Jietang Zhu   +5 more
doaj   +1 more source

Spatiotemporal Thermal Modulation and Patterning using a Programmable 1024 Element Microheater Array

Advanced Science, EarlyView.
Programmable microheater arrays are essential for a variety of applications. However, large arrays have thus far not been realized. We introduce a programmable 32×$\times$32 microheater array consisting of heating elements – each smaller than 300 μm$\umu{\rm m}$.
Rahul Goyal, Jang‐Hwan Han, Sadaf Pashapour, Peer Fischer   +3 more
wiley   +1 more source

A deep learning approach based defect visualization in pulsed thermography [PDF]

, 2022
Non-destructive evaluation (NDE) is very essential in measuring the properties of materials and in turn detect flaws and irregularities. Pulsed thermography (PT) is one of the advanced NDE technique which is used for detecting and characterizing ...
Varun Ittigi, Delanthabettu, Sharath, Sethu Selvi Selvan, Udupa, Sathvik, Tanvi Khandelwal, Murugesan, Menaka, Mulla, Touqeer, Selvan, Sethu Selvi, Touqeer Mulla, Sathvik Udupa, Sharath Delanthabettu, Menaka Murugesan, Ittigi, Varun, Balasubramaniam, Venkatraman, Khandelwal, Tanvi, Venkatraman Balasubramaniam   +15 more
core   +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, Ivana Banjad Pečur, Nina Štirmer   +2 more
doaj   +1 more source

Mechanically Robust, Self‐Healable, and Cryotolerant GelMA Hydrogel for Wearable Tactile Sensors with Enhanced Durability, Lifetime, and Environmental Stability

Advanced Science, EarlyView.
A mechanically robust, self‐healable, moisturizing, cryotolerant and adhesive GelMA hydrogel is developed by incorporating polyvinyl alcohol, acrylic acid, sodium tetraborate, and glycerol into GelMA matrix via a photoinitiated polymerization process. The hydrogel‐derived omni‐healable ionotronic pressure sensor can sensitively and consistently monitor
Zhikang Li, Gengyu Han, Boqing Jia, Jijian Lu, Changxu Zhang, Bin Wang, Jiaxiang Wang, Kang Zhao, Muhammad Afzal Khan Qureshi, Lan Yu, Min Li, Guoxi Luo, Tong Wang, Qijing Lin, Weishi Li, Libo Zhao, Yumeng Xue   +16 more
wiley   +1 more source

A Physics-informed Neural Network for Pulsed Thermography- Based Defect Detection

Research and Review Journal of Nondestructive Testing, 2023
The non-destructive testing technique of pulsed thermography has been widely used in materials to detect defects due to its low cost, large detection area, and rapid implementation.
Tung-Yu Hsiao, Yuan Yao
doaj   +1 more source

Sandwich‐Structured Aramid Composite Papers with Heterogeneous Dielectric Layers for Integrated Corona Resistance and Thermal Conductivity

Advanced Science, EarlyView.
A sandwich‐structured aramid composite paper was designed to integrate high corona resistance and thermal conductivity. The fluorinated graphene/aramid surface layers effectively dissipate space charges to suppress corona discharge. Meanwhile, the boron nitride nanotube/aramid core layer constructs continuous heat‐conduction pathways.
Jun‐Wen Ren, Jun‐Xue Chen, Ying‐Ying Tong, Zi Wang, Jia‐Cheng Zhang, Lin Zhang, Bo Zhang, Fan Zhang, Guo‐Long Wang, Jun‐Wei Zha, Shen‐Li Jia   +10 more
wiley   +1 more source

Thermographic procedure for the assessment of Resistance Projection Welds (RPW): Investigating parameters and mechanical performances

Journal of Advanced Joining Processes
This study presents a non-destructive testing (NDT) thermographic procedure for assessing the quality and mechanical strength of Resistance Projection Welded (RPW) joints with rectangular embossments.
G. Dell'Avvocato, D. Palumbo
doaj   +1 more source

Sonogenetic Control of Engineered Probiotics for the Treatment of MASH by Modulating the Gut‐Liver Axis

Advanced Science, EarlyView.
Researchers developed an engineered probiotic encapsulated in an inulin hydrogel, enabling ultrasound‐triggered intestinal delivery of IL‐22. In MASH model mice, this system remodeled gut microbiota, strengthened the intestinal barrier and reduced portal LPS and hepatic IL‐6.
Chunya Ji, Yan Fang, Shen Zhang, Weichen Xu, Wenyun Guo, Jing Chen, Mingrui Zhu, Congjian Wen, Siming Chen, Yuli Zhu, Huixiong Xu, Haohao Yin   +11 more
wiley   +1 more source

Classification of Spot-Welded Joints in Laser Thermography Data Using Convolutional Neural Networks

IEEE Access, 2021
Spot welding is a crucial process step in various industries. However, classification of spot welding quality is still a tedious process due to the complexity and sensitivity of the test material, which drain conventional approaches to its limits.
Linh Kastner, Samim Ahmadi, Florian Jonietz, Peter Jung, Giuseppe Caire, Mathias Ziegler, Jens Lambrecht   +6 more
doaj   +1 more source