Sanichiro Yoshida received his undergraduate and graduate degrees from Keio University, Japan, in 1980 and 1986, respectively. From 1981 - to 1982, he worked for Dr. Author V. Phelps at the University of Colorado at Boulder as a student researcher, where he learned the basics of conducting scientific research. He has conducted experimental and theoretical research on various topics, such as developments and applications of high-power lasers, precise measurement with optical interferometry, optical and acoustic characterization of material strength, and development of a comprehensive theory on deformation and fracture of solids. Currently, he works at Southeastern Louisiana University as a Professor of Physics.

• General discussions of waves.- acoustic wave equations and underlying physics.- propagation of acoustic waves in air.- propagation of acoustic waves in solids.- acoustic transduction.- acoustic techniques.

Sanichiro Yoshida received his undergraduate and graduate degrees from Keio University, Japan, in 1980 and 1986, respectively. From 1981 - to 1982, he worked for Dr. Author V. Phelps at the University of Colorado at Boulder as a student researcher, where he learned the basics of conducting scientific research. He has conducted experimental and theoretical research on various topics, such as developments and applications of high-power lasers, precise measurement with optical interferometry, optical and acoustic characterization of material strength, and development of a comprehensive theory on deformation and fracture of solids. Currently, he works at Southeastern Louisiana University as a Professor of Physics.

• General discussions of waves.- acoustic wave equations and underlying physics.- propagation of acoustic waves in air.- propagation of acoustic waves in solids.- acoustic transduction.- acoustic techniques.

Sanichiro Yoshida received his undergraduate and graduate degrees from Keio University, Japan, in 1980 and 1986, respectively. From 1981 - to 1982, he worked for Dr. Author V. Phelps at the University of Colorado at Boulder as a student researcher, where he learned the basics of conducting scientific research. He has conducted experimental and theoretical research on various topics, such as developments and applications of high-power lasers, precise measurement with optical interferometry, optical and acoustic characterization of material strength, and development of a comprehensive theory on deformation and fracture of solids. Currently, he works at Southeastern Louisiana University as a Professor of Physics.

• General discussions of waves.- acoustic wave equations and underlying physics.- propagation of acoustic waves in air.- propagation of acoustic waves in solids.- acoustic transduction.- acoustic techniques.