Motivated by their functional conformity, micro-cantilever-based MEMS oscillators are investigated in this study as structure-integrable transducers for the acquisition of guided ultrasonic waves fiber–metal laminates. While acceleration-sensitive limited maximum frequency, presented displacement-sensitive oscillator is operated quasi-free fashion a seismometer, making it particularly sensitive...

Ian Donald [3] was an obstetrician who developed ultrasound [4] diagnostics during the twentieth century in Europe. Ultrasound is a medical diagnostic technique that uses sound waves to produce images of the inside of the body. During the early 1900s, physicians had no way to see inside a woman?s uterus [5] during pregnancy [6]. Donald developed the first method of scanning human internal anato...

In this study, applications of ultrasound in food drying processes have been reviewed. High frequency ultrasonic treatment can be used in food drying processes as a pretreatment or for the improvement of the main process and the traditional driers. Ultrasonic waves at low frequency can also be used as a diagnostic method for measuring properties of the final dried products and controlling the d...

Polycaprolactone/Hydroxyapatite (PCL/HA) composite is an excellent material for fabricating tissue engineering scaffolds, especially as bone scaffolds. However, polarity differences between the hydrophilic HA and the hydrophobic PCL often leads to poor dispersion during the blending process. This is due to the tendency of the HA particles to agglomerate, and the difficulty to efficiently mix th...

This paper presents an ultrasound piezoceramic transducer, centred into an extracorporeal shock wave lithotriptor system. The electromagnetic acoustic source lithotriptor initiates the incident shock waves into the water, and the ultrasound transducer improves the caviational effects of the bubbles. The piezoelectric transducer is powered by a Function/Pulse Generator type IWATSU SG-4511, and c...

Ultrasonic imaging has been used in the field of dermatology for nearly 30 years. In this review, we seek to explain the basic principles of ultrasound as they relate to the skin. Based on differences in keratin, collagen, and water content, ultrasonic waves are reflected back to a transducer and translated into a gray-scale image for interpretation. The technicalities of the process and its va...

BACKGROUND Ultrasound has been commonly used to guide clinical procedures in Western medicine, such as peripheral nerve blocks, biopsies, and fluid aspiration. Ultrasound is a useful tool because it is noninvasive, allows real-time visualisation of body images, and poses no risk to the human body, as it uses sound waves that are generally safe. In addition to guiding clinical procedures, ultras...

As ultrasonic waves penetrate deep into tissues ultrasound imaging is able to image invisible things by “seeing through tissues” in real time. With the advent of ultrafast ultrasound imaging, the modality can reach thousands of frames per second, much faster than what the human eye can see. A completely new world is revealed as most important physiological processes in the human body occur in t...