Results 41 to 50 of about 132,248 (302)

A 3D-printed passive ultrasound phase-interference compensator for reduced wave degradation in cancellous bone – an experimental study in replica models

Journal of Tissue Engineering, 2018
The current ‘active’ solution to overcome the impediment of ultrasound wave degradation associated with transit-time variation in complex tissue structures, such as the skull, is to vary the transmission delay of ultrasound pulses from individual ...
Christian M Langton, Saeed M AlQahtani, Marie-Luise Wille   +2 more
doaj   +1 more source

A method for the measurement of hydrodynamic oil films using ultrasonic reflection [PDF]

, 2004
The measurement of the thickness of an oil film in a lubricated component is essential information for performance monitoring and control. In this work, a new method for oil film thickness measurement, based on the reflection of ultrasound, is evaluated ...
Drinkwater, B.W., Dwyer-Joyce, R.S., Harper, P.   +2 more
core   +1 more source

Screening and epitope characterization of Nidogen‐2‐specific nanobodies

FEBS Open Bio, EarlyView.
Camel immunization and phage display were employed to generate high‐affinity VHH nanobodies against Nidogen‐2. After library construction, biopanning, ELISA screening, sequencing, and recombinant expression, selected nanobodies were purified and characterized, leading to the preliminary exploration of a nanobody‐based sandwich ELISA for specific ...
Jianchuan Wen, Qianqian Cui, Zhongyun Lan, Yingjun Wang, Shuaiying Zhao, Wenxuan Feng, Yunfeng Liu, Qiting Huang, Dongna Zhang, Jianfeng Xu   +9 more
wiley   +1 more source

Integration of porous graphene and 3D-printed piezopolymer for flexible ultrasound transducers

Materials & Design
Ultrasound technology is crucial in diagnostic imaging, making it widely used in medical applications. However, traditional ultrasound transducers face limitations in flexibility and ease of fabrication, leading to the exploration of thin-film and ...
Shirin Movaghgharnezhad, Ehsan Ansari, Clayton A. Baker, Ahmed A Bashatah, Dulcce A. Valenzuela, Pilgyu Kang, Parag V. Chitnis   +6 more
doaj   +1 more source

Localizing a target inside an enclosed cylinder with a single chaotic cavity transducer augmented with supervised machine learning

AIP Advances, 2021
Ultrasound is employed in, e.g., non-destructive testing and environmental sensing. Unfortunately, conventional single-element ultrasound probes have a limited acoustic aperture.
Tom Sillanpää, Krista Longi, Joni Mäkinen, Timo Rauhala, Arto Klami, Ari Salmi, Edward Hæggström   +6 more
doaj   +1 more source

Acoustic measurement of lubricant-film thickness distribution in ball bearings [PDF]

, 2006
An oil-film thickness monitoring system capable of providing an early warning of lubrication failure in rolling element bearings has been developed. The system is used to measure the lubricant-film thickness in a conventional deep groove ball bearing ...
Bruce W. Drinkwater, Cameron, El-Sisi, Jacobson, Jiao, Jie Zhang, Richardson, Rob S. Dwyer-Joyce   +7 more
core   +1 more source

Developmental and Epileptic Encephalopathy due to Biallelic Pathogenic Variants in PIGM

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective PIGM encodes a critical enzyme in the glycosylphosphatidylinositol (GPI)‐anchor biosynthesis pathway. While promoter‐region mutations in PIGM have been associated with a relatively mild phenotype characterized by portal vein thrombosis and absence seizures, recent evidence suggests that coding‐region mutations result in a more severe
Júlia Sala‐Coromina, Anna Marcé‐Grau, Barbara Masotto, Marta Codina, Lamia BenJemaa, Yasmina Elaribi, Mónica Martinez‐Gallo, Roger Colobran, Angel Sanchez‐Montañez, Irene Valenzuela, Yoshiko Murakami, Alfons Macaya   +11 more
wiley   +1 more source

A Novel Racing Array Transducer for Noninvasive Ultrasonic Retinal Stimulation: A Simulation Study

Sensors, 2019
Neurostimulation has proved to be an effective method for the restoration of visual perception lost due to retinal diseases. However, the clinically available retinal neurostimulation method is based on invasive electrodes, making it a high-cost and high-
Yanyan Yu, Zhiqiang Zhang, Feiyan Cai, Min Su, Qiuju Jiang, Qifa Zhou, Mark S. Humayun, Weibao Qiu, Hairong Zheng   +8 more
doaj   +1 more source

Ultrasonography Compared With Computed Tomography in Identifying Thoracic Aortic Aneurysms in Patients With Giant Cell Arteritis

Arthritis Care &Research, EarlyView.
Objective The objectives of this study were to evaluate the correlation and agreement between ultrasonography and computed tomography (CT) in measuring ascending aorta diameter in patients with giant cell arteritis (GCA) and to investigate the development of new ascending aortic aneurysms in patients with newly diagnosed GCA.
Anne C. Bull Haaversen, Lene K. Brekke, Tanaz A. Kermani, Øyvind Molberg, Andreas P. Diamantopoulos   +4 more
wiley   +1 more source

Improving Sonication Efficiency in Transcranial MR-Guided Focused Ultrasound Treatment: A Patient-Data Simulation Study

Bioengineering, 2023
The potential improvement in sonication efficiency achieved by tilting the focused ultrasound (FUS) transducer of the transcranial MR-guided FUS system is presented. A total of 56 cases of patient treatment data were used.
Changsoo Kim, Matthew Eames, Dong-Guk Paeng   +2 more
doaj   +1 more source