Results 11 to 20 of about 2,766,732 (290)

A Novel Broadband Ultrasonic Location System [PDF]

open access: yes, 2002
Indoor ultrasonic location systems provide ne-grained position data to ubiquitous computing applications. However, the ultrasonic location systems previously developed utilize narrowband transducers, and thus perform poorly in the presence of noise and ...
Ward, Andy, Hazas, Michael
core   +4 more sources

Broadband Ultrasonic Location Systems for Improved Indoor Positioning [PDF]

open access: yes, 2006
Ultrasonic location systems are a popular solution for the provision of fine-grained indoor positioning data. Applications include enhanced routing for wireless networks, computer-aided navigation, and location-sensitive device behavior. However, current
Hopper, Andy, Hazas, Michael
core   +3 more sources

A noncontact ultrasonic platform for structural inspection [PDF]

open access: yes, 2011
Miniature robotic vehicles are receiving increasing attention for use in nondestructive testing (NDE) due to their attractiveness in terms of cost, safety, and their accessibility to areas where manual inspection is not practical. Conventional ultrasonic
Summan, Rahul   +4 more
core   +3 more sources

Novel hydrophilic polymer couplant for application in ultrasonic non destructive testing [PDF]

open access: yes, 2001
Ultrasonic Non Destructive Testing (NDT) is used to inspect materials and structures for defects. Water is commonly used in NDT as a couplant to improve ultrasonic transfer between an interrogating probe and test piece.
Bourne, Simon James
core   +3 more sources

Low-Frequency Ultrasound Therapy in Combination Treatment of Patients with Type 2 Diabetes Mellitus

open access: yesMìžnarodnij Endokrinologìčnij Žurnal, 2013
Background. Hypoglycemic therapy used at present in patients with type 2 diabetes mellitus (DM) does not always lead to desired result and many patients live in a state of constant decompensation of metabolic processes, with the high levels of glycemia ...
YE.E. LAVRINENKO
doaj   +1 more source

Pengaruh Lama Paparan Gelombang Ultrasonik Frekuensi Terapi terhadap Jumlah Koloni Bakteri Streptococcus mutans

open access: yesMajalah Kedokteran Gigi Indonesia, 2016
Latar Belakang. Gelombang Untrasonik telah digunakan untuk terapi dan diagnosis, di klinik kedokteran gigi popular digunakan untuk ultrasonik skaler. Efek termal dan nontermal gelombang ultrasonik dapat mempengaruhi lingkungan tumbuh bakteri, merusak ...
F. Fransiska   +2 more
doaj   +1 more source

Ultrasonic resonance of defects for nonlinear acoustic imaging and NDT [PDF]

open access: yes, 2014
The effect of local defect resonance (LDR) on the nonlinear ultrasonic response of defects is studied and applied for enhancement of sensitivity of nonlinear ultrasonic ...
Igor Solodov
core   +1 more source

Morphological active contour without edge-based model for real-time and non-rigid uterine fibroid tracking in HIFU treatment

open access: yesHealthcare Technology Letters, 2019
High-intensity focused ultrasound (HIFU) therapy represents an image-guided and non-invasive surgical approach to treat uterine fibroid. During the HIFU operation, it is challenging to obtain the real-time and accurate lesion contour automatically in ...
Guochen Ning, Xinran Zhang, Hongen Liao
doaj   +1 more source

Frequency response of underwater ultrasonic transducers in the near field using polarimetric polarization maintaining fiber sensors [PDF]

open access: yes, 2010
Near-field ultrasonic response (50-2000 kHz) of an underwater 1-3 piezocomposite transducer is experimentally investigated using a polarimetric polarization maintaining fiber sensor.
Hayward, Gordon   +5 more
core   +3 more sources

Ultrasonic sensing using Yb3+/Er3+-codoped distributed feedback fibre grating lasers. [PDF]

open access: yes, 2005
Yb3+/Er3+-codoped distributed feedback (YbEr-DFB) fibre grating lasers have been investigated for the detection of ultrasonic Lamb waves generated in an aluminum plate. Two sensor configurations have been investigated. A path length imbalanced readout
Ye, Chen-Chun, Tatam, Ralph P.
core   +1 more source

Home - About - Disclaimer - Privacy