Results 31 to 40 of about 32,854 (304)

Functional Materials for ICE and IVUS Piezoelectric Transducers: A Review

Sensors
This review paper provides a comprehensive overview of the functional materials and assembly technologies used in intracardiac echocardiography (ICE) and intravascular ultrasound (IVUS) transducers.
Dayong He, Baihezi Ye
doaj   +1 more source

Ultrasonic distance sensor improvement using a two-level neural network [PDF]

, 1995
This paper discusses the performance improvement that a neural network can provide to a contactless distance sensor based on the measurement of the time of flight (TOF) of an ultrasonic (US) pulse.
Ferraris, Franco, U. Grimaldi, A. Carullo, GRIMALDI U., Graziani, S., S. Graziani, Parvis, Marco, Graziani S, Grimaldi U, Carullo, Alessio, GRAZIANI S., M. Parvis, Grimaldi, U., F. Ferraris   +13 more
core   +1 more source

Acoustic Devices for Particle and Cell Manipulation and Sensing [PDF]

, 2014
An emerging demand for the precise manipulation of cells and particles for applications in cell biology and analytical chemistry has driven rapid development of ultrasonic manipulation technology.
Hughes, David, Sylvia Gebhardt, Poltarjonoks, Romans, Sandy Cochran, David A. Hughes, Cochran, Sandy, Aleksandrs Bolhovitins, Gebhardt, Sylvia, Han Wang, Romans Poltarjonoks, Martyn Hill, Schönecker, Andreas, Peter Glynne-Jones, Christine Demore, Christine E. M. Demore, Weijer, Kees; id_orcid, Kees Weijer, Hill, Martyn, Hughes, David A., Glynne-Jones, Peter, Demore, Christine E. M., Bolhovitins, Aleksandrs, Yongqiang Qiu, Demore, Christine, David Hughes, Andreas Schönecker, Qiu, Yongqiang, Wang, Han, Weijer, Kees   +28 more
core   +1 more source

Analysis of ultrasonic transducers with fractal architecture

, 2008
Ultrasonic transducers composed of a periodic piezoelectric composite are generally accepted as the design of choice in many applications. Their architecture is normally very regular and this is due to manufacturing constraints rather than performance ...
Hayward, G., Mulholland, A.J., Mulholland, Anthony, Orr, L., O'Leary, R.L., O'Leary, Richard   +5 more
core   +1 more source

Ultrasonic Detection of Transversal Cracks in Rail Heads – Theoretical Approach

Engineering Transactions, 2021
In the paper the calculation of ultrasonic field generated by the transmitting transducer and the pulse-echo amplitude received after beam reflection at the defect in tested material is presented.
Tomasz KATZ, Sławomir MACKIEWICZ, Zbigniew RANACHOWSKI, Zbigniew L. KOWALEWSKI, Łukasz ANTOLIK   +4 more
doaj   +1 more source

A theoretical model of a new electrostatic transducer incorporating fluidic amplification [PDF]

, 2008
This article concerns the design of a new electrostatic transducer whose backplate consists of a series of drilled pipes. A new one-dimensional model is derived which considers the interaction of the membrane with the air load, the air cavities, and the ...
Walker, Alan J., Anthony J. Mulholland, Hayward, G., Mulholland, A.J., Alan J. Walker, Mulholland, Anthony, Gordon Hayward, Ewan Campbell, Campbell, Ewan Fraser, Campbell, Ewan   +9 more
core   +1 more source

Capacitive Micromachined Ultrasonic Transducers (CMUTs) for Underwater Imaging Applications

Sensors, 2015
A capacitive micromachined ultrasonic transducer structure for use in underwater imaging is designed, fabricated and tested in this paper. In this structure, a silicon dioxide insulation layer is inserted between the top electrodes and the vibration ...
Jinlong Song, Chenyang Xue, Changde He, Rui Zhang, Linfeng Mu, Juan Cui, Jing Miao, Yuan Liu, Wendong Zhang   +8 more
doaj   +1 more source

Numerical and experimental analysis of focused air-coupled ultrasonic transducer based on cross-linked polypropylene film

AIP Advances, 2022
Air-coupled ultrasonic transducers based on novel piezoelectrets with extremely small acoustic impedance have some distinctive advantages including no coupling agent, flexibility, and eco-friendliness, compared to conventional ultrasonic transducers ...
Feng Li, Yuxuan Zhang, Yongdong Pan, Jinfeng Zhao, Xiaoqing Zhang   +4 more
doaj   +1 more source

Development of human monoclonal antibodies against TARM1 by yeast display

FEBS Open Bio, EarlyView.
Human monoclonal antibodies against TARM1 are generated by yeast display‐guided selection. These antibodies bind to soluble and cell‐surface forms of TARM1. Also, these antibodies exhibit agonistic activity in the NFAT‐GFP reporter assay, indicating that TARM1 signaling can be functionally modulated by antibodies and suggesting TARM1 as a potential ...
Rikio Yabe, Mayumi Saeki, Masaaki Hashiguchi, Sayaka Ono, Kazuhisa Aoki, Hidetaka Tanno   +5 more
wiley   +1 more source

Harmonic analysis of lossy piezoelectric composite transducers using the plane wave expansion method

, 2008
Periodic composite ultrasonic transducers oer many advantages but the periodic pillar architecture can give rise to unwanted modes of vibration which interfere with the piston like motion of the fundamental thickness mode.
Hayward, G., Hayward, Gordon, Mulholland, A.J., Mulholland, Anthony, Mulholland, Anthony J., Orr, Leigh-Ann, Orr, L., O'Leary, R.L., O'Leary, Richard L., O'Leary, Richard   +9 more
core   +1 more source