General Topics

1.Ultrasonic properties of materials, Phonon physics, Acousto-optics

Keywords

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

2.Measurement techniques, Imaging, Nondestructive evaluation

Keywords

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

3.Piezoelectric devices (Bulk wave devices, Surface wave devices)

keywords

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.

4.Nonlinear acoustics, High power ultrasound, Sonochemistry

keywords

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

5.Medical ultrasound

keywords

ScatteringUltrasonic 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

6.Underwater sound

keywords

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