| 1. |
Chung WK, Haradhan K, Eun SJ, Chengyuan Li, Kazuharu H, Masumi H, Changes in the sound absorption coefficient and drying characteristics of wood by surface perforation, 第73回日本木材学会大会, 2023.03. |
| 2. |
Masumi Hasegawa,Hiroyuki Okamura, Kazutoshi Takeuchi, Junji Matsumura, Effect of Tensile Stress on Velocity of Surface Wave Generated Using Air-coupled Ultrasonic Sensor, 21st International Nondestructive Testing and Evaluation of Wood Symposium, 2019.09. |
| 3. |
Masumi Hasegawa,Hiroyuki Okamura, Mami Murakawa, Kazutoshi Takeuchi, Keiichi Yamada, Kiyotaka Uchikura, Noriyuki Harada, Junji Matsumura, Comparative studies of air-coupled ultrasonic and X-ray computed tomography for nondestructive evaluation in fire-retardant wood, 2019 Korean Society of Wood Science and Technology Annual Meeting, 2019.04. |
| 4. |
Masumi Hasegawa, Mami Murakawa, Hiroyuki Okamura, Ryohei Asakura, Kazutoshi Takeuchi, Keiichi Yamada, Kiyotaka Uchikura, Noriyuki Harada, Junji Matsumura, Distribution Measurement of Chemical Retention in Fire-retardant Treated Wood with Nondestructive Technique, 2018 Joint Convention -Era of Sustainable World - Tradition and Innovation for Wood Science and Technology--, 2018.11. |
| 5. |
Masumi Hasegawa, Junji Matsumura, Propagation Properties of Surface Wave Generated on Wood Using Air-coupled Ultrasonic Sensors, The Sixth Japan-US NDT Symposium Emerging NDE Capabilities for a Safer World, 2018.07. |
| 6. |
Chun Won Kang, Eun Suk Jang, Hee Jun Park, Sang Sik Jang, Ho Yang Kang, Masumi Hasegawa, Sound transmission loss of CLT wall panels composed of larch square timber core and plywood cross band, 2018 Korean Society of Wood Science and Technology Annual Meeting, 2018.04. |
| 7. |
Chun Won Kang, Eun Suk Jang, Hee Jun Park, Sang Sik Jang, Ho Yang Kang, Masumi Hasegawa, Sound absorption rate of CLT wall panels composed of larch square timber core and plywood cross band, 2018 Korean Society of Wood Science and Technology Annual Meeting, 2018.04. |
| 8. |
Masumi Hasegawa, Hiroyuki Okamura, Ryohei Asakura, Kazutoshi Takeuchi, Yamada Keichi, Nondestructive Prediction of Chemical Retention in Fire-retardant Treated Wood Using Micro Focus X-ray Computed Tomography, AFELiSA 2017, 2017.11. |
| 9. |
Takeshi Kumamoto, Masumi Hasegawa, Hiroyuki Okamura, Ryohei Asakura, Kazutoshi Takeuchi, JUNJI MATSUMURA, Fundamental study on nondestructive measurement of chemical retention in fire-retardant wood using air-coupled ultrasonics, AFELiSA 2015, 2015.11. |
| 10. |
Masumi Hasegawa, Kousuke Masudome, JUNJI MATSUMURA, Non-contact and non-destructive evaluation of drying stress in wood by air-coupled ultrasonic - Part I: Propagation characteristics of small clear wood specimens, 3rd International Symposium on Laser Ultrasonics and Advanced Sensing, 2013.06, Drying stress cause the surface or internal checks during wood drying process. The checks cause drop of the ornamental values of lumber. It is difficult to know the drying stress in wood nondestructively. Authors have reported that the acoustoelastic technique is the best way to know the internal stress in wood. The final objective is to establish the non-contact and non-destructive technique of drying stress in lumber by air-coupled ultrasonic. As the first step, the propagation characteristics of small clear wood specimens were investigated in this study.. |
| 11. |
Masumi Hasegawa, Misaki Mori, Kousuke Masudome, JUNJI MATSUMURA, Fundamental research on non-contact and non-destructive drying stress measurement in wood by air-coupled ultrasonic, 2013 Korean Society of Wood Science and Technology Annual Meeting, 2013.04. |
| 12. |
Masumi Hasegawa, Current state of domestic wood resources and their use in Japan, 국간재 고도이용 센터 창립기념 심포지움, 2012.12. |
| 13. |
Masumi Hasegawa, Studied on Nondestructive Evaluation of Wood by Ultrasonic wave, Department Seminar of Agriculture and Life Science in Chungnam University, 2012.10. |
| 14. |
Masumi Hasegawa, Masato Takata, JUNJI MATSUMURA, ODA Kazuyuki, Effect of wood properties on radial distributions of ultrasonic wave velocity in softwood stem, 2012 IUFLO Conference Division5 Forest Products, 2012.07. |
| 15. |
Nondestructive Stress Measurement of Melia azedarach by Acoustoelastic Method: Masumi Hasegawa, Junji Matsumura, Kazuyuki Oda, Yasutoshi Sasaki, Syunji Tsushima, Ryouichi Kusano.
10th World Conference on Timber Engineering. Miyazaki, Japan. 2008.6. |
| 16. |
Acoustoelastic Effect in Fast Growing Tree for Ultrasonic Stress Analysis: Masumi Hasegawa, Junji Matsumura, Kazuyuki Oda, Yasutoshi Sasaki. 9th European Conference on Non-Destructive Testing. Berlin, Germany. 2006.9. |
| 17. |
Acoustoelastic birefringence effect in wood for ultrasonic stress measurement: Masumi Hasegawa, Yasutoshi Sasaki. 8th World Conference on Timber Engineering. Lahti, Finland. 2004.6. |
| 18. |
Influence of texutre anisotropy on the polarization direction of shear wave in acoustoelastic birefringent: Yasutoshi Sasaki, Mina Sugihara, Masumi Hasegawa. The 52th annual meeting of the Japan wood research society. |
| 19. |
Influence of texture-anisotropy on the acoustoelastic birefringent effect of wood: Masumi Hasegawa, Yasutoshi Sasaki. The 2001 annual meeting of JSME/MMD. |
| 20. |
Acosutoelastic birefringence effct of wood II -Ultrasnoic stress measurement of wood-: Masumi Hasegawa, Yasutoshi Sasaki. The 51th annual meeting of the Japan wood research society. |
| 21. |
Acosutoelastic birefringence effct of wood I -Influence of texture anisotropy on the polarization direction of shear wave-: Masumi Hasegawa, Yasutoshi Sasaki. The 51th annual meeting of the Japan wood research society. |
| 22. |
Acoustoelastic birefringence stress measurement of wood in bending: Masumi Hasegawa, Yasutoshi Sasaki. The 50th annual meeting of the Japan wood research society. |
| 23. |
Acoustoelastic effect of wood in cyclic loading: Masumi Hasegawa, Yasutoshi Sasaki, Mayumi Mouri.
The 49th annual meeting of the Japan wood research society. |
| 24. |
Acoustoelastic effect of wood: Masumi Hasegawa, Yasutoshi Sasaki, Toshihiro Iwata, Kousei Ando.
The 48th annual meeting of the Japan wood research society. |
| 25. |
Acoustoelastic stress measurement of wood in bending: Yasutoshi Sasaki, Toshihiro Iwata, Masumi Hasegawa, Kousei Ando. The 48th annual meeting of the Japan wood research society. |
