Results 41 to 50 of about 67,775 (286)

Terahertz Wave Approach and Application on FRP Composites

Advances in Materials Science and Engineering, 2013
Terahertz (THz) applications have emerged as one of the most new powerful nondestructive evaluation (NDE) techniques. A new T-ray time-domain spectroscopy system was utilized for detecting and evaluating orientation influence in carbon fiber-reinforced ...
Kwang-Hee Im, David K. Hsu, Chien-Ping Chiou, Daniel J. Barnard, Jong-An Jung, In-Young Yang   +5 more
doaj   +1 more source

Recommendation of RILEM TC 212-ACD: acousticemission and related NDE techniques for crack detectionand damage evaluation in concrete. Measurement method for acoustic emission signals in concrete [PDF]

, 2010
The text presented hereafter is a draft for general ...
Aggelis, D., Breysse, D., Forde, M.C., Grosse, C., Helmerich, R., Ivanovich, S.A., Kamada, T., Lacidogna, Giuseppe, Moczko, A., Ohtsu, M., Sajna, A., Shigeishi, M., Shiotani, T., Suzuki, T., Van Mier, J.G.M., Vogel, T., Watanabe, T., Yuyama, S.   +17 more
core   +2 more sources

Distribution of Electrical Resistivity in Single Carbon Fiber Filaments and Its Correlation With Tensile Modulus

Advanced Engineering Materials, EarlyView.
A statistical framework is applied to quantify the distribution of electrical resistivity among individual filaments of two commercially available carbon fiber types. Correlations between filament resistivity, tensile modulus, and diameter are examined and complemented by TEM analysis to provide new insight into filament‐level variability relevant for ...
Nils Wieja, Daniel Sebastian Wolz, Philip Johannes Steinbild, Markus Löffler, Darius Pohl, Jan Wolf, Anja Winkler, Thomas Behnisch, Bernd Rellinghaus, Maik Gude   +9 more
wiley   +1 more source

Health Status Assessment of Passenger Ropeway Bearings Based on Multi-Parameter Acoustic Emission Analysis

Sensors
This study presents a comprehensive investigation of acoustic emission (AE) characteristics for condition monitoring of rolling bearings in passenger ropeway systems.
Junjiao Zhang, Yongna Shen, Zhanwen Wu, Gongtian Shen, Yilin Yuan, Bin Hu   +5 more
doaj   +1 more source

On the Reliability of a Solitary Wave Based Transducer to Determine the Characteristics of Some Materials

Sensors, 2015
In the study presented in this article we investigated the feasibility and the reliability of a transducer design for the nondestructive evaluation (NDE) of the stiffness of structural materials.
Wen Deng, Amir Nasrollahi, Piervincenzo Rizzo, Kaiyuan Li   +3 more
doaj   +1 more source

Guidebook of nondestructive evaluation techniques for materials and structures [PDF]

, 1974
Seventy nondestructive techniques for evaluating material and structures are described in guidebook. Standardized format facilitates comparison of their merits and limitations for solving various problems. Guide includes index of flaw types and tabulated
Vary, A.
core   +1 more source

In Situ Study of Resistive Switching in a Nitride‐Based Memristive Device

Advanced Functional Materials, EarlyView.
In situ TEM biasing experiment demonstrates the volatile I‐V characteristic of MIM lamella device. In situ STEM‐EELS Ti L2/L3 ratio maps provide direct evidence of the oxygen vacancies migrations under positive/negative electrical bias, which is critical for revealing the RS mechanism for the MIM lamella device.
Di Zhang, Rohan Dhall, Matthew M. Schneider, Cun Li, Chengyu Song, Sundar Kunwar, Hongyi Dou, Natanii R. Yazzie, Henry Tran, Daniel Appuing, Jim Ciston, Nicholas G. Cucciniello, Pinku Roy, Michael T. Pettes, John Watt, Winson Kuo, Haiyan Wang, Ye Cao, Rodney J. McCabe, Aiping Chen   +19 more
wiley   +1 more source

Micron-scale imaging using bulk ultrasonics

Scientific Reports
An extraordinary resolution down to 50 microns is demonstrated for the first time for bulk ultrasonics, using novel micro-fabricated metamaterial lenses. The development and performance of the silicon-based Fabry–Perot type metalenses with an array of 10
Loheshwaran Chandran, Mohamed Subair Syed Akbar Ali, Bradley Bobbs, Chandan Dutta, Joseph JD, Enakshi Bhattacharya, Prabhu Rajagopal   +6 more
doaj   +1 more source

Asymptotic Analytical Solution on Lamb Waves in Functionally Graded Nano Copper Layered Wafer

Applied Sciences, 2021
In this study, the feasibility of using Lamb waves in functionally graded (FG) nano copper layered wafers in nondestructive evaluation is evaluated. The elastic parameters and mass densities of these wafers vary with thickness due to the variation in ...
Yifeng Hu, Xiaoshan Cao, Yi Niu, Yan Ru, Junping Shi   +4 more
doaj   +1 more source

Hydrocolloid‐Based Multiwavelength Stretchable QD‐OLED Patch for Simultaneous Neonatal Jaundice and Dermatitis Treatment with Biosignal Monitoring

Advanced Healthcare Materials, EarlyView.
Comparison of therapeutic and diagnostic applications of a surface‐emitting light source with multiwavelength emission characteristics. Abstract Conventional light‐emitting‐diode‐based light sources suffer from rigidity, localized heating, and poor adaptability to skin deformation, limiting their use in skin‐attached medical devices.
In Ho Kim, Young Woo Kim, Jae‐Young Jeong, Ye Ji Shin, Chaeyeong Lee, Jae Gyun Choi, Oh Kwan Kwon, Kyoung Hwa Kim, Sang Jik Kwon, Eou‐Sik Cho, Yongmin Jeon   +10 more
wiley   +1 more source