|1. Ultrasonic properties of materials, phonon physics, acousto-optics|
|2. Measurement techniques, imaging, nondestructive evaluation|
|3. Piezoelectric devices (bulk wave devices, surface wave devices)|
|4. Nonlinear acoustics, high power ultrasound, sonochemistry|
|5. Biomedical ultrasound|
|6. Ocean acoustics|
ultrasonic relaxation; ultrasonic absorption; velocity dispersion; internal friction; viscoelasticity; elastic constants; wave propagation; simulation of wave propagation; piezoelectric materials; phonon; quantum acoustics; phononic crystal; acousto-optics; Brillouin scattering; laser-generated ultrasound; picosecond ultrasound; photoacoustic spectroscopy; photothermal spectroscopy
Transmitter/receiver(transducer); laser ultrasound; electromagnetic acoustic transducer; air coupled ultrasound(modulation; demodulation, communication); measurement system (velocity, attenuation, elastic constant, viscosity); metrology (temperature, flow rate, volume, distance, thickness); visualization methods(phased array, synthetic aperture, holography, tomography); acoustic microscopy@(LFB, UFM); propagation phenomena(dispersion, diffraction, focusing, sonic crystal); boundary phenomena (reflection, refraction, transmission, scattering); surface wave/boundary wave; guided wave(rod, rail, pipe); simulation methods(FDTD, FEM, BEM); nonlinearity(harmonics, subharmonics, modulation, bispectra); phase conjugate/time reversal, spectroscopy(resonance, relaxation), AE, flaw detection/structural health monitoring@(metal, composite, film); environmental measurement; underground measurement
Filters; delay lines; resonators; oscillators; acousto-optic devices; MEMS devices; ultrasonic transducers*1; functional modules; piezoelectric transformer; piezoelectric gyroscopes; non-linear devices; acoustic sensors (physical, chemical, bio, etc*2); acoustic manipulators; application of piezoelectric thin films; micro machining; device fabrication process; evaluation of device characteristics; system applications
*1 Medical applications are in General topics 5.
*2 Sensitive mechanisms are in General topics 1.
Sonoluminescence; cavitation; microbubble; sonoprocessing; chemical and biological effects of sound; nonlinear propagation; nonlinear parameter; parametric array; radiation force; acoustic streaming; thermo-acoustics; ultrasonic cleaning; ultrasonic machining; ultrasonic welding; ultrasonic atomization; ultrasonic motor; ultrasonic levitation; airborne ultrasound; transducers; vibration system
Scattering; ultrasonic transducer (piezoelectric effect); acoustic field control (acoustic field measurement, beam forming); high frequency ultrasound (bio-acoustic microscope); blood flow measurement (Doppler measurement); tissue characterization (echo tracking, viscoelasticity, sound velocity and attenuation); acoustic radiation force; nonlinear effect; signal processing (image processing, 3D processing); diagnosis equipment (image filing, computer-assisted diagnosis); microbubble (cavitations, contrast medium); therapeutic ultrasound (sonochemical reaction, healing, temperature measurement, shock wave, ablation); safety; standardization; Informatics, Cardiology, Gastroenterology, Urology, Obstetrics and gynecology, Orthopedics, Bone diagnosis, Integrated sinology
Sound propagation; acoustic imaging; acoustics of sediments; seismic profiling; hydrography; seafloor mapping; acoustical detection of marine life; bioacoustics; fisheries acoustics; noise in water; transducers and transducer arrays; sonar system; sonar signal processing; underwater communication; ROV's and AUV's; acoustic tomography; inversion methods; acoustical oceanography; oceanographic instrumentation; underwater measurement