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- Shin-ichi Satake, Tomoaki Kunugi, Ryutaro Himeno
- ISHPC
- 2000

- Shin-ichi Satake, Hiroyuki Kanamori, Tomoaki Kunugi, Kazuho Sato, Tomoyoshi Ito, Keisuke Yamamoto
- Applied optics
- 2007

We have developed a parallel algorithm for microdigital-holographic particle-tracking velocimetry. The algorithm is used in (1) numerical reconstruction of a particle image computer using a digital hologram, and (2) searching for particles. The numerical reconstruction from the digital hologram makes use of the Fresnel diffraction equation and the FFT (fast… (More)

- Tsukasa Muroya, Kaori Kawasaki, +8 authors Y. Tenjin
- Diagnostic and therapeutic endoscopy
- 1999

We have been performing PDT using Excimer Dye Laser (EDL) or YAG-OPO laser, a type of low power laser, both of which have a considerably higher degree of tissue penetration even when compared to PDT using Argon Dye Laser (ADL).PDT is a relatively simple procedure without any bleeding and does not require anesthesia since it causes no pain. PDT is performed… (More)

- Shin-ichi Satake, Takafumi Anraku, Hiroyuki Kanamori, Tomoaki Kunugi, Kazuho Sato, Tomoyoshi Ito
- Computer Physics Communications
- 2008

A micro-digital holographic particle tracking velocimetry with high-speed system is constructed by a PC grid environment that employs Windows XP with AD-POWERs as parallel tool. Two algorithms for high-speed system are evaluated under the same PC grid environment. Both methods are based on a computer-generated hologram algorithm. One method is a division… (More)

- Kei Ito, Tomoaki Kunugi, Shuji Ohno, Hideki Kamide, Hiroyuki Ohshima
- J. Comput. Physics
- 2014

- Yoshifumi Takeda, Tomoaki Kunugi, Osamu Hoshino, Takeo Ukita
- Toxicology and applied pharmacology
- 1968

- Yoshifumi Takeda, Tomoaki Kunugi, Takeshi Terao, Takeo Ukita
- Toxicology and applied pharmacology
- 1968

- Tomoaki Kunugi
- Asia-Pacific population journal
- 1989

In 1985, there were approximately 427 million persons aged 60 and over in the world, accounting for about 9% of the world's population. By 2020, the elderly population will comprise 13% of the world's population and 70% of these people will live in developing countries. Governments and international agencies should increase their efforts and activities to… (More)

- Nobuyuki Masuda, Tomoyoshi Ito, +4 authors Kazuho Sato
- Optics express
- 2006

We have designed a special purpose computer system for digital holographic particle tracking velocimetry (DHPTV). We present the pipeline for calculating the intensity of an object from a hologram by fast Fourier transform in an FPGA chip. This system uses four FPGA chips and can make 100 reconstructed images from a 256x256-grid hologram in 266 msec. It is… (More)

- Yukio Abe, Nobuyuki Masuda, +5 authors Kazuho Sato
- Optics express
- 2008

We have designed a special purpose computer system for visualizing fluid flow using digital holographic particle tracking velocimetry (DHPTV). This computer contains an Field Programmble Gate Array (FPGA) chip in which a pipeline for calculating the intensity of an object from a hologram by fast Fourier transform is installed. This system can produce 100… (More)