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Technical Papers and Presentations 2009

The investigation of the noise pediatric ICU

H.koike
Proc. Autumn Meet. Acoust. Soc. Jpn, pp96 (2009)

Study of sound field evaluation by using room tuning materials including columnar scattering material

K.Yamashita,K.Morio,M.Hirata,H.Ohyama,S.Ohashi
Technical Committee on Architectural Acoustics of Acoust. Soc. Jpn AA2009-64 (2009)

Example of improvement of sound field in redecorate the cinema

T.Tsugane, A.Hayakawa, M.Sakai,H.Koike
Proc. Spring Meet. Acoust. Soc. Jpn, pp1149-1150 (2009)

Acoustical design of Studio of Research Laboratory for Affective Design Engineering K.I.T.

TSUGANE Takamitsu, K.Murabayashi, Y.Sakiyama,M.Horii
Proc. Spring Meet. Acoust. Soc. Jpn, pp1151-1152 (2009)

Acoustic design by wave acoustic simulation for small listening environment -Control of room acoustics by layered random diffuser-

Y.Satake,H.Tsuru
Technical Committee on Electroacoustics of Acoust. Soc. Jpn EA2009-37 (2009)

Efficient Calculation of Impulse Response by Finite Difference Method

H. Tsuru. R. Iwatsu 1)
1) Tokyo Denki University
Proc. Spring Meet. Acoust. Soc. Jpn, pp1055-1058 (2009)

Consideration of Impulse Response Analysis with TSP Sound Source byt Finite Difference Method

H. Tsuru. R. Iwatsu 1)
1) Tokyo Denki University
Proc. Autumn Meet. Acoust. Soc. Jpn, pp663-666 (2009)

Invsetigation of Numerical Method of Xylophone by Finite Difference Method in Time Domain

H. Tsuru
IEICE Technical Report Vol 109, No.100, pp97-102 (2009)

Improvement of Finite-diffrenence Time-domain Method for Acoustic Design

H. Tsuru. R. Iwatsu 1)
1) Tokyo Denki University
RIMS No.1645, pp177-188 (2009)

Acoustic Design by Wave Acoustic Simulation

H.Tsuru, Y. Satake
Architectural Acousitcs and Noise Control No.148 pp51-55 (2009)

Aircraft Noise Identification Based on Statistical Analysis

Kenichi Morio, Yoshio Tadahira, Koichi Yamashita, Shinji Ohashi, Toshihito
Matsui 1)
1) Kyoto university
Technical Committee on Noise and Vibration of Acoust. Soc. Jpn N-2009-73 (2009)

A Study on the aircraft noise prediction around Atsugi airport

O.Kohashi,T.Shino,K.Yamashita,Y.Shimizu 1),F.Sano 1), S.Asai 1)
1) Bureau of Enviromment.TMG
Proc. Autumn Meet. The Institute of Noise Control Engineering Of Japan, pp101-104 (2009)

Measuring Absorption Coefficients of Acoustical Materials by Free Field Method with PU-Probe - The investigation of the correction for spherical wave by the numerical calculation and the experiment -

Kunikazu Hirosawa, Hiroshi Nakagawa, Makoto Kon and Aki Yamamoto
Proc. Spring Meet. Soc. Auto. Eng. Jpn, No.11-09 (2009.5)

Measurement of absorption coefficients for acoustical materials in the free field using PU-Probe. -Part IV. Investigation of the spherical wave correction for the normal incidence-

Kunikazu Hirosawa, Hiroshi Nakagawa, Makoto Kon and Aki Yamamoto
Proc. Autumn Meet. Acoust. Soc. Jpn (2009.9)

Investigation of absorption coefficient measurement of acoustical materials by boundary element method using particle velocity and sound pressure sensor in free field

Kunikazu Hirosawa, Hiroshi Nakagawa, Makoto Kon and Aki Yamamoto
Acoust. Sci. & Tech., 30(6), 442-445 (2009)

FE Modeling Scheme using Experimentally Measured Acoustic Impedance for Sound Proof Package

Hiroko Tada 1), Kunikazu Hirosawa, Hiroshi Nakagawa, Makoto Kon, Aki Yamamoto, Kazuhito Misaji 1), Youichi Kamiyama 1) and Fumihiko Ide 1)
1) Honda R&D Co., Ltd SAE World Congress & Exhibition, April 2009, Detroit, MI, USA,
Session: Virtual Design and Engineering (Part 2 of 2)

Comparison of three measurement techniques for normal absorption coefficients in free field method

Kunikazu Hirosawa, Hiroshi Nakagawa, Makoto Kon and Aki Yamamoto
The 16th International Congress on Sound and Vibration, Krakow (2009.7)

A simple method avoiding non-uniqueness in the boundary element method for acoustic scattering problem

Kunikazu Hirosawa, Takashi Ishiduka 1), Kyoji Fujiwara 2)
1) Institute of Technology, Shimizu Corporation
2) Faculty of Design, Kyushu University
J. Acoust. Soc. Am., 125(5), 2838-2846 (2009)

Comparison of three measurement techniques for the normal absorption coefficient of sound absorbing materials in the free field

Kunikazu Hirosawa, Kazuhiro Takashima, Hiroshi Nakagawa, Makoto Kon, Aki Yamamoto and Walter Lauriks 1)
1) Laboratorium voor Akoestiek en Thermische Fysica, Katholieke Universiteit Leuven
J. Acoust. Soc. Am., 126(6), 3020-3027 (2009)

Porous materials FE modeling scheme using experimentally measured acoustic impedance for predicting panel sound radiation

Hiroko Tada, Youichi Kamiyama, Fumihiko Ide and Kazuhito Misaji 1), Kunikazu Hirosawa, Hiroshi Nakagawa, Makoto Kon and Aki Yamamoto
1) Honda R&D Co., Ltd
SAE International Journal of Materials & Manufacturing, 2(1), 362-367 (2009)