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811 (0,126s) •

Project

Nonlinear electroultrasonic spectroscopy of solids (GA102/06/0866)

testing method is based on interaction of ultrasonic wave with alternating electric current of different frequencies. The ultrasonic phonons influence transportPresent ultrasonic nondestructive testing methods of ...

BI - Akustika a kmity

  • 2006 - 2008
    • •
  • 2 034 tis. Kč
    • •
  • 2 034 tis. Kč
    • •
  • GA ČR
Project

The use of artificial neural network to estimate ultrasonic wave dispersion and attenuation characteristics (GA106/00/D105)

The development of cost effective and reliable non-destructive techniques for material testing is a problem of primary importance in material technology. Progress in development of the most frequently used methods based on ultrasonic wav...

JL - Únava materiálu a lomová mechanika

  • 2000 - 2003
    • •
  • 1 499 tis. Kč
    • •
  • 647 tis. Kč
    • •
  • GA ČR
Project

Time reversal ultrasonic signal processing used in nondestructive evaluation of materials and structures (GA17-22615S)

ultrasonic nondestructive testing methods: acoustic emission and nonlinear elastic waveTime reversal (TR) of acoustic and ultrasonic signals became an efficient tool and structures. TR procedure allows focusing of elastic ...

BI - Akustika a kmity

  • 2017 - 2021
    • •
  • 5 354 tis. Kč
    • •
  • 4 881 tis. Kč
    • •
  • GA ČR
Project

USOR - Ultrasonic well rehabilitation and water treatment (LTE121007)

The main aim of the project is development of a device for mechanical rehabilitation of water-supply boreholes based on the principle of ultrasonic wave emission. The technology will be applied using different mechanisms of ultr...

Water resources

  • 2021 - 2023
    • •
  • 7 436 tis. Kč
    • •
  • 3 718 tis. Kč
    • •
  • MŠMT
Project

Non-linear ultrasonic defectoscopy of solids (GA205/03/0071)

by propagation of ultrasonic waves in solids. Present ultrasonic non-destructive testing methods of material are based on analysis of elastic waves reflection, absorption to this anharmonicity second and third har...

BI - Akustika a kmity

  • 2003 - 2005
    • •
  • 2 596 tis. Kč
    • •
  • 2 026 tis. Kč
    • •
  • GA ČR
Project

Nondestructive investigations of mechanical objects by means of the random phenomena analysis (1P05ME823)

analysis of nonlinear effects arising during the spread of ultrasonic wave motion in vinicity of defects...

JL - Únava materiálu a lomová mechanika

  • 2005 - 2006
    • •
  • 100 tis. Kč
    • •
  • 100 tis. Kč
    • •
  • MŠMT
Project

Development of wave propagation techniques for the ultrasonic characterization of materials (OK 164)

BE - Teoretická fyzika

  • 1996 - 1997
    • •
  • 740 tis. Kč
    • •
  • 300 tis. Kč
    • •
  • MŠMT
Project

Relation between elastic moduli determined by seismic methods in laboratory and in the field (IAA300130906)

Proposal is aimed to determination of longitudinal and shear wave velocity. Laboratorytesting of sphere samples is based on ultrasonic sounding and monitoring of velocity. Field space dependence of velocities P and S waves ...

DC - Seismologie, vulkanologie a struktura Země

  • 2009 - 2011
    • •
  • 1 643 tis. Kč
    • •
  • 1 643 tis. Kč
    • •
  • AV ČR
Project

Nonlinear interaction of elastic waves with a single crack (GA19-14237S)

there are nondestructive methods of assessing their structural health. Nonlinear ultrasonic methods. Proposed project intends to thoroughly test nonlinear ultrasonics applied to crack describe the interaction of elastic waves

Applied mathematics

  • 2019 - 2021
    • •
  • 5 088 tis. Kč
    • •
  • 5 054 tis. Kč
    • •
  • GA ČR
Project

The electro-ultrasonic and narrowband resonant ultrasonic spectroscopy for testing of electronic materials and devices (MEB051003)

-ultrasonic spectroscopy for testing of materials and electronic devices such as thin to the elastic waves and electron transport near cracks and inhomogenities in the device structure. Nonlinear electro-ultrasonic spectros...

JA - Elektronika a optoelektronika, elektrotechnika

  • 2010 - 2011
    • •
  • 100 tis. Kč
    • •
  • 100 tis. Kč
    • •
  • MŠMT
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