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Featured researches published by Mitsumasa Murakami.


Kagaku Kogaku Ronbunshu | 1988

Development of an electromagnetic flowmeter for studies of gas-liquid two-phase flow.

Mitsumasa Murakami; Kenichi Maruo; Tadatsugu Yoshiki

A flowmeter for gas holdup measurement of two-phase flows was developed. The apparatus is composed of two exciting coils, four electrodes and earths, and can be attached to a Column up to 10.5cm in diameter. The output signals are fed to a microcomputer, in which noise synchronized to A. C. power supply is eliminated by data processing.It is shown that this device measures the gas holdup of bubbly flow and churn turbulent flow wherein liquid phase is continuous.


Journal of Japan Society on Water Environment | 1995

Purification of Pond Water by a Biofilter Method.

Mitsumasa Murakami; Tadatsugu Yoshiki; Yoshiki Urakami


Journal of environmental conservation engineering | 2003

Development of Under-Over Stream-type Biofilm Reactor Combined with Successive Switching of Inlet and Outlet Points for Treating Domestic Wastewater

Tadaaki Mizoguchi; Yosuke Kajiyama; Kazunori Sato; Shigehito Takamoto; Mitsumasa Murakami


Journal of environmental conservation engineering | 1995

Pollution of environment water and its purification.Purification of pond-water using contact material of fiber.

Mitsumasa Murakami; Takeshi Tukimori; Akihiro Shimoyama; Atsushi Murakami; Tadatsugu Yoshiki; Takeshi Kiuchi


Kagaku Kogaku Ronbunshu | 1994

Biological Treatment of Dialysis Wastewater by PUF Fluidized-Bed.

Atsushi Toyoda; Tatsuo Kanki; Shigeru Momoda; Mitsumasa Murakami; Yoshimichi Maeda


Kagaku Kogaku Ronbunshu | 1993

Early-Stage Characteristics of Biological Treatment by PUF Fluidized Bed. For treatment of Dialysis Wastewater.

Atsushi Toyoda; Tatsuo Kanki; Tsuyoshi Asano; Mitsumasa Murakami; Yoshimichi Maeda


Journal of environmental conservation engineering | 2000

Engineering prospect for environment in 2000. Technology of aqueous environment. Purification technology of environmental water.

Mitsumasa Murakami


Journal of environmental conservation engineering | 1998

Measurement of Inactivity of Algae and Determination of Fifty Percent Lethal Condition of Ultraviolet Radiation

Mitsumasa Murakami; Atsushi Murakami


Journal of environmental conservation engineering | 1997

Purification system for lakes and marshes using fiber and submersion plants.

Mitsumasa Murakami; Hiroshi Kawamoto


Journal of environmental conservation engineering | 1994

Special issue : From the symposium "high technology of purification and treatment of the environment water".(2).Treatment process of dialyser wastewater with carrier fluidized bed.

Atsushi Toyoda; Tatsuo Kanki; Shigeru Momoda; Tsuyoshi Asano; Mitsumasa Murakami; Yoshimichi Maeda

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