Results 71 to 80 of about 202,142 (326)

Pulse-Echo Phased Array Ultrasonic Inspection of Pultruded Rod Stitched Efficient Unitized Structure (PRSEUS) [PDF]

, 2010
A PRSEUS test article was subjected to controlled impact on the skin face followed by static and cyclic axial compressions. Phased array ultrasonic inspection was conducted before impact, and after each of the test conditions. A linear phased array probe
Johnston, Pat H.
core   +1 more source

Experimental investigation of inter-element isolation in a medical array transducer at various manufacturing stages [PDF]

, 2016
This work presents the experimental investigation of vibration maps of a linear array transducer with 192 piezoelements by means of a laser Doppler vibrometer at various manufacturing finishing steps in air and in water.
Bini, Fabiano, Grandoni, Andrea, Marinozzi, Franco   +2 more
core   +1 more source

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

Advanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai, Md Shakhawath Hossain, Nhat Minh Nguyen, Yongliang Chen, Chaohao Chen, Xiaoxue Xu, Quang Thang Trinh, Toan Dinh, Toan Trong Tran   +8 more
wiley   +1 more source

Cu‐Based MOF/TiO2 Composite Nanomaterials for Photocatalytic Hydrogen Generation and the Role of Copper

Advanced Functional Materials, EarlyView.
HKUST‐1/TiO2 composite materials show a very high photocatalytic hydrogen evolution rate which increases as a function of the irradiation time until reaching a plateau and even surpasses the performance of the 1%Pt/TiO2 material after three photocatalytic cycles.
Alisha Khan, Marie Le Pivert, Alireza Ranjbari, Diana Dragoe, Daniel Bahena‐Uribe, Christophe Colbeau‐Justin, Christian Herrero, Dorota Rutkowska‐Zbik, Johnny Deschamps, Hynd Remita   +9 more
wiley   +1 more source

Three-dimensional model reconstruction of pipeline with inner wall corrosion based on ultrasonic phased array technology

You-qi chuyun, 2023
The inner wall corrosion of pipelines is concealed and hard to monitor in time. In order to visualize the shape of the internally corroded pipeline, as well as the defect volume and its spatial distribution, a three-dimensional (3D) model reconstruction ...
Yulong ZHANG, Rongguo HOU, Rui WANG, Miaomiao ZHANG, Zhe LYU   +4 more
doaj   +1 more source

Leak Detection in Spacecraft Using a 64-Element Multiplexed Passive Array to Monitor Structure-Borne Noise [PDF]

, 2005
We demonstrate an array sensor method intended to locate leaks in manned spacecraft using leak‐generated, structure‐borne ultrasonic noise. We have developed and tested a method for sensing and processing leak noise to reveal the leak location involving ...
Chimenti, Dale, Holland, Stephen, Holland, Stephen, Roberts, Ronald, Song, Junho   +4 more
core   +2 more sources

Self‐supportive Three‐Way Photoelectrochemical System Achieving Uranium Recycling, Organic Oxidation, and Electricity Generation in Complex Waters

Advanced Functional Materials, EarlyView.
A self‐sustaining solar photoelectrochemical cell (SS‐PEC) is developed to recover uranium from aqueous UO22+ with concurrent organic oxidation and electricity production. The monolithical photoanode directly captures electrons from organic compounds, leading to the oxidation of organic compounds and the decomposition of uranium‐organic complexes ...
Yumei Wang, Qingming Zeng, Haodong Ji, Rongzhong Wang, Jiachen Wang, Yanjun Wen, Wonyong Choi, Qingyi Zeng   +7 more
wiley   +1 more source

Algorithm of spatiomporal post-processing for ultrasonic tomography with phased arrays [PDF]

, 2018
Для решения задач ультразвукового контроля, связанных с повышением требований к достоверности полученных данных, сегодня используют перспективный метод, позволяющий визуализировать внутреннюю структуру объекта контроля.
Вдовенко, А. Ю., Долматов, Дмитрий Олегович   +1 more
core  

Phased electromagnetic acoustic transducer array for Rayleigh wave surface defect detection [PDF]

, 2020
A phased electromagnetic acoustic transducer (EMAT) array system has been developed for detection and characterisation of surface breaking defects. An array of four linear coils which are individually controlled are used to generate a Rayleigh wave.
Dixon, S., Edwards, R. S. (Rachel S.), Greenshields, David, Xiang, L.   +3 more
core   +1 more source

Electroactive Metal–Organic Frameworks for Electrocatalysis

Advanced Functional Materials, EarlyView.
Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska, Yutong Luo, Ruyan Zhao, Jianjun Zhang, Mingchao Wang, Xinliang Feng, Eike Brunner, Stefan Kaskel   +7 more
wiley   +1 more source