All issues
Volume 9, Issue 3
Displaying 1-14 of 14 articles from this issue
- |<
- <
- 1
- >
- >|
-
Nobuaki KUMAGAI1981 Volume 9 Issue 3 Pages 221
Published: May 31, 1981
Released on J-STAGE: February 26, 2010
JOURNAL FREE ACCESSDownload PDF (109K) -
Masaaki IMAI, Yoshihiro OHTSUKA1981 Volume 9 Issue 3 Pages 222-236
Published: May 31, 1981
Released on J-STAGE: February 26, 2010
JOURNAL FREE ACCESSDownload PDF (1951K) -
Mitsuo MAEDA, Katsunori MURAOKA, Makoto HAMAMOTO, Masanori AKAZAKI, Ya ...1981 Volume 9 Issue 3 Pages 237-252
Published: May 31, 1981
Released on J-STAGE: February 26, 2010
JOURNAL FREE ACCESSDownload PDF (1711K) -
Mitsugu HANABUSA, Takuji UI1981 Volume 9 Issue 3 Pages 253-260
Published: May 31, 1981
Released on J-STAGE: February 26, 2010
JOURNAL FREE ACCESSDownload PDF (880K) -
Masahiro TAWATA, Akira SENDA, Katsumi YONEDA, Shuzo HATTORI1981 Volume 9 Issue 3 Pages 261-269
Published: May 31, 1981
Released on J-STAGE: February 26, 2010
JOURNAL FREE ACCESSHolographic interferometric technique by a general double-exposure method has been used to measure the deformation of many kinds of things. A specific optical system as a kind of application of this technique is devised to measure only vertical deformation of dental impression materials. The results of the measurement of the time dependence of one directional deformation during or after the vulcanization of four kinds of elastomer impression materials are shown. These results show clearly that this technique is very useful for the analysis of deformation of dental impression materials.View full abstractDownload PDF (2045K) -
Kohki MATSUURA, Motoshi HORITA, Gaishi YAMAMOTO1981 Volume 9 Issue 3 Pages 270-277
Published: May 31, 1981
Released on J-STAGE: February 26, 2010
JOURNAL FREE ACCESSA method of signal processing for photon correlation LDV is described. In the correlation method velocity and its fluctuation are determined from Fourier spectrum of autocorrelation function. This paper is concerned with a data processing method of improving the resolving power of velocity which is limited by the doppler ambiguity. The method is to make a simple compensation for the autocorrelation function and the resolution is improved by a factor of about 2. Experimental results which are obtained from rotating rubber disk by using a signal processing system composed of digital correlator and microcomputer are also shown. And the improvement in resolving power of velocity has been confirmed experimentally.View full abstractDownload PDF (914K) -
Toshiharu TAKO, Kenichi ASAKAWA, Hiroshi TAKATORI1981 Volume 9 Issue 3 Pages 278-283
Published: May 31, 1981
Released on J-STAGE: February 26, 2010
JOURNAL FREE ACCESSTo measure the microtremor of the ground, a 50 meter modified Fabry-Perotinterferometer has been installed in an underground tunnel in the Nagatsuta Campus of the Tokyo Institute of Technology. It is illuminated by a thermally stabilized single mode 633nm He-Ne laser. Only one of the axial modes is excited by using three mode-matching lenses. The length of the interferometer is controlled to satisfy its resonance condition by using a piezoelectric translator (PZT) mounting a reflection mirror. The applied voltage to the PZT is almost proportional to the amplitude of the microtremor. The conversion accuracy is about 2x10-10.View full abstractDownload PDF (591K) -
Yoshiyuki KAWAMURA, Koichi TOYODA, Susumu NAMBA1981 Volume 9 Issue 3 Pages 284-287
Published: May 31, 1981
Released on J-STAGE: February 26, 2010
JOURNAL FREE ACCESSThe amplified spontaneous emissim (ASE) characteristics of the Kr F laser excited by an axially injected electron-beam have been studied with the fixed mixing gas ratio of Kr: F2: He=8: 0.2: 91.80 and the total gas pressure of 1-4 atm. The maximum efficiency (the conversion ratio from the pumping energy to the ASE energy) of 1.7% was obtained for the total gas pressure of 4 atm and the average pumping power density of 6.2 MW/cm3. Maximum ASE energy of 7.4 J was obtained.View full abstractDownload PDF (528K) -
Hiroki MIYAMOTO, Kei MIYAMOTO, Shunsaku KOMODA1981 Volume 9 Issue 3 Pages 288-294
Published: May 31, 1981
Released on J-STAGE: February 26, 2010
JOURNAL FREE ACCESSDownload PDF (1160K) -
Masaaki NIDO, Shuji ASAKA, Hiroki NAKATSUKA, Masahiro MATSUOKA1981 Volume 9 Issue 3 Pages 295-298
Published: May 31, 1981
Released on J-STAGE: February 26, 2010
JOURNAL FREE ACCESSDownload PDF (324K) -
Yasunobu IWASAKA1981 Volume 9 Issue 3 Pages 299-308
Published: May 31, 1981
Released on J-STAGE: February 26, 2010
JOURNAL FREE ACCESSDownload PDF (978K) -
Shuzo HATTORI1981 Volume 9 Issue 3 Pages 309-311
Published: May 31, 1981
Released on J-STAGE: February 26, 2010
JOURNAL FREE ACCESSDownload PDF (236K) -
[in Japanese]1981 Volume 9 Issue 3 Pages 312-318
Published: May 31, 1981
Released on J-STAGE: February 26, 2010
JOURNAL FREE ACCESSDownload PDF (1044K) -
1981 Volume 9 Issue 3 Pages 321-322
Published: May 31, 1981
Released on J-STAGE: February 26, 2010
JOURNAL FREE ACCESSDownload PDF (173K)
- |<
- <
- 1
- >
- >|