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Ultragarsas |Website|

Ultragarsas Journal, ULTRASOUND INSTITUTE Kaunas (Lithuania)

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Table of Contents
24 Articles in
Issue: 2012-05
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Exhibitors (17)
TWI Ltd (The W.. 1
Ultrasound Ins.. 16
Title / Author(s) / Keywords Session
Adders on a basis of piezoceramic transformers
R. Kažys158, A. Vladišauskas2,128, V. Sharapov28, K. Bazilo23, D. Romanenko2
1Ultrasound institute; Ultrasound Institute at Kaunas University of Technology189, Kaunas, Lithuania
2Cherkasy State Technological University9, Cherkasy , Ukraine
adder, creation of low frequency vibration, piezoceramic disc and cylindrical transformer, transducer

Texture analysis of transcranial sonographic images for Parkinson disease diagnostics
A. Sakalauskas3, A. Lukoševicius, K. Lauckaite
Biomedical Engineering Institute; Kaunas University of Technology (KTU)19, Kaunas, Lithuania
Ultrasonic Testing (UT)

Design of low-noise preamplifier for medical diagnostic system
R. Raisutis35, O. Tumšys14, V. Laurs
Ultrasound Institute at Kaunas University of Technology189, Kaunas, Lithuania
eye tumors diagnostic system, low-noise preamplifier, signal to noise ratio, noise factor

Contrast sensitivity function and extraocular muscles thickness in patients with early stage Graves? ophthalmopathy
D. Imbrasiene1,22, D. Žaliuniene1, J. Byckova1, F. Puzemskaja1, D. Stanislovaitiene1
1Lithuanian University of Health Sciences3, Kaunas, Lithuania
2Lithuanian Academy of Physical Education2, Kaunas, Lithuania
Graves? ophthalmopathy, extraocular muscle, ultrasonography, contrast sensitivity

Investigation of different operating modes of ultrasonic annular array used in ophthalmology
M. Urnavicius1, E. Jasiuniene127, R. Raisutis135, O. Tumšys1,114, A. Paunksnis.2
1Ultrasound institute; Ultrasound Institute at Kaunas University of Technology189, Kaunas, Lithuania
2Lithuanian University of Health Sciences3, Kaunas, Lithuania
ultrasonic imaging, annular array, CIVA.

Synchronization of B-scan diagnostic imaging with transducer position tracking for three-dimensional ultrasonic scanning
A. Sakalauskas3, R. Jurkonis5, A. Lukoševicius.
Biomedical engineering institute; Kaunas University of Technology (KTU)19, Kaunas, Lithuania
B-scan diagnostic system, position tracking, video to position synchronization, 3D rendering, surface reconstruction, volume estimation.

Study of the interaction between particles in the acoustic cyclone separator
V. Vekteris8, V. Striška, V. Mokšin2, D. Ozarovskis2
Department of Machines Engineering; Vilnius Gediminas Technical University18, Vilnius, Lithuania
acoustic coagulation, acoustic field, ultrasound, particles, cyclone separator, separation efficiency

Tribology of particles in acoustic field
V. Vekteris8, D. Ozarovskis2, R. Zaremba, V. Mokšin2
Department of Machines Engineering; Vilnius Gediminas Technical University18, Vilnius, Lithuania
acoustic field, acoustic agglomeration, particle, adhesion

Distributed parameter arterial tree modeling using D mode ultrasound images
I. Kupciunas, A. Kopustinskas
Department of electrical and Control Equipment; Kaunas University of Technology (KTU)19, Kaunas, Lithuania
artery, model, index, ultrasound, image

Investigation of stress-state in rolled sheets by ultrasonic techniques
Y. Ivanova17, T. Partalin26
1Institute of Mechanics; Bulgarian Academy of Sciences (BAS)43, Sofia, Bulgaria
2Faculty of Mathematics and Informatics; Sofia University St. Kliment Ohridski11, Sofia, Bulgaria
ultrasonic surface waves, anisotropy, velocity, mechanical stress

Applying ultrasonic echolocation-based measurement method to increase the accuracy of leveling instruments
A. Petrauskas19, D. Petrauskas.2
Ultrasound Institute at Kaunas University of Technology189, Kaunas, Lithuania
leveling instruments, mechanical levels, vertical level, horizontal level, accuracy of leveling instruments, plumb-bob, plumb-line declination, ultrasonic echolocation-based meter, ultrasonic distance measurement, measurement accuracy, measurement environment, spirit-level

The scanning algorithm suitable for the arbitrary construction arrays
R. Kažys58, L. Kairiukštis, A. Voleišis13, R. Raisutis35
Ultrasound institute; Ultrasound Institute at Kaunas University of Technology189, Kaunas, Lithuania
phased arrays, simulations, ultrasonic field, scanning algorithm

Investigations of the guided wave data analysis capabilities in structural health monitoring of composite objects
L. Mažeika152, V. Samaitis15, K. Burnham24, K. Makaya2
1Ultrasound Institute at Kaunas University of Technology189, Kaunas, Lithuania
2TWI Ltd (The Welding Institute)190, Great Abington, Cambridge, United Kingdom
structural Health Monitoring, ultrasonic guided waves, composite structures

Investigation of the spectrum decomposition technique for estimation of the group velocity Lamb waves
L. Draudviliene3, L. Mažeika52
Ultrasound Institute at Kaunas University of Technology189, Kaunas, Lithuania
lamb wave, dispersion, group velocity, spectrum decomposition, finite element.

Ultrasonic methods and their implementation for evaluating porous materials
A. Petrauskas19, D. Petrauskas.2
Ultrasound Institute at Kaunas University of Technology189, Kaunas, Lithuania
porous material, physical-mechanical properties, evaluation of porous materials, acoustic echolocation method, direct and indirect acoustic measurement methods, Lamb wave, ultrasound, echolocation, acoustic level meter for liquids, acoustic antenna, flexural vibration, radiation pattern

Viscosity and density measurement methods for polymer melts
R. Kažys58, R. Rekuviene
Ultrasound institute; Ultrasound Institute at Kaunas University of Technology189, Kaunas, Lithuania
density, viscosity, extrusion, polymer melt, shear waves, longitudinal waves, ultrasonic measurements.

Application of ultrasonic measurement method for investigation of green ceramic tiles
M. Kulokas, R. Kažys58, L. Mažeika.2
Ultrasound institute; Ultrasound Institute at Kaunas University of Technology189, Kaunas, Lithuania
ultrasonic propagation speed, ceramic tile, zero-crossing and the cross-correlation technique.

Simultaneous generation of longitudinal and shear ultrasonic waves: knowledge summary, PZT piezoelements manufacturing and experiments
A. Voleišis13, R. Kažys58, B. Voleišiene, R. Sliteris26
Ultrasound Institute; Ultrasound Institute at Kaunas University of Technology189, Kaunas, Lithuania
dual mode, longitudinal and shear wave simultaneous generation, ultrasonic transducers

Pulse and frequency responses of broadband low frequency ultrasonic transducers
A. Vladišauskas28, L. Mažeika52, R. Sliteris26, R. Raisutis35, A. Jankauskas7
Ultrasound Institute; Ultrasound Institute at Kaunas University of Technology189, Kaunas, Lithuania
Ultrasonic Testing (UT), frequency response, replaceable protector, pulse response, contact type scanning, broadband transduc

Quasi?electrostatic charge distribution analysis of the planar interdigital transducer
A. Janeliauskas2
Department of Electronics Engineering; Kaunas University of Technology (KTU)19, Kaunas, Lithuania
SAW, interdigital transducer, IDT, quasi?electrostatic charge distribution, Chebyshev polynomial approximation, Green?s function, arbitrary metallization ratio

 
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