Publications by authors named "Jamil Kanfoud"

With the advancement of miniaturization in electronics and the ubiquity of micro-electro-mechanical systems (MEMS) in different applications including computing, sensing and medical apparatus, the importance of increasing production yields and ensuring the quality standard of products has become an important focus in manufacturing. Hence, the need for high-accuracy and automatic defect detection in the early phases of MEMS production has been recognized. This not only eliminates human interaction in the defect detection process, but also saves raw material and labor required.

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Article Synopsis
  • High-temperature (HT) ultrasonic transducers are gaining attention for monitoring structural health in extreme conditions, particularly for pipelines.
  • The article details the development of a high-temperature piezoelectric wafer active sensor (HT-PWAS) using Y-cut gallium phosphate to enable torsional guided wave modes at temperatures up to 600 °C.
  • Tests on the sensor included electromechanical impedance spectroscopy and laser Doppler vibrometry, which validated a model for its electromechanical behavior, aiming to improve guided-wave monitoring of pipelines under harsh environments.
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The accumulation of fouling within a structure is a well-known and costly problem across many industries. The build-up is dependent on the environmental conditions surrounding the fouled structure. Many attempts have been made to detect fouling accumulation in critical engineering structures and to optimize the application of power ultrasonic fouling removal procedures, i.

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There is an increasing interest in using ultrasonic guided waves to assess the structural degradation of above-ground storage tank floors. This is a non-invasive and economically viable means of assessing structural degradation. Above-ground storage tank floors are ageing assets which need to be inspected periodically to avoid structural failure.

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During lift-off, space launchers are submitted to high-level of acoustic loads, which may damage sensitive equipments. A special acoustic absorber has been previously integrated inside the fairing of space launchers to protect the payload. A new research project has been launched to develop a low cost fairing acoustic protection system using optimized layers of porous materials covered by a thin layer of fabric.

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