Koichi Sato

Hepatobiliary cystadenoma exhibiting morphologic changes from simple hepatic cyst shown by 11-year follow up imagings (2008)

Fukunaga, Naoto, Ishikawa, Masashi, Ishikura, Hisashi, Ichimori, Toshihiro, Kimura, Suguru, Sakata, Akihiro, ...

Abstract Background A long-term follow up case of hepatobiliary cystadenoma originating from simple hepatic cyst is rare. Case presentation We report a case of progressive morphologic changes from...

Abstract Designing Video Processing Surveillance System EE382 Embedded Software Systems Literature Survey (2008)

Koichi Sato

The objective of this project is to design the embedded intelligent surveillance system. That is, to turn our PC based research into embedded system. Our previous system tracks persons and recognizes...

Where did the super-small sized large bowel advanced cancer come from? (2007)

Wada, Ryo, Sato, Koichi, Ichida, Takafumi, Maekawa, Hiroshi, Ogawa, Kaoru, Maekawa, Takeo

Abstract Our study suggested that the super-small sized (less than 15 mm in maximum diameter) large bowel advanced cancers, which were sometimes found, were derived from the superficial...

Characterization and Hydrodesulfurization Activity of CoMo Catalysts Supported on Boron-Doped Sol-Gel Alumina (2006)

Dumeignil, Franck, Sato, Koichi, Imamura, Motoyasu, Matsubayashi, Nobuyuki, Payen, Edmond, Shimada, Hiromichi

A series of hydrodesulfurization (HDS) catalysts was prepared by impregnation of Co and Mo on sol-gel B-Al2O3 supports with B/Al ratios of 0, 0.02, 0.04, 0.08, 0.20, 0.32, 0.49, and 0.61. The...

Characterization and Hydrodesulfurization Activity of CoMo Catalysts Supported on Boron-Doped Sol-Gel Alumina (2006)

Dumeignil, Franck, Sato, Koichi, Imamura, Motoyasu, Matsubayashi, Nobuyuki, Payen, Edmond, Shimada, Hiromichi

A series of hydrodesulfurization (HDS) catalysts was prepared by impregnation of Co and Mo on sol-gel B-Al2O3 supports with B/Al ratios of 0, 0.02, 0.04, 0.08, 0.20, 0.32, 0.49, and 0.61. The...

Characterization and Hydrodesulfurization Activity of CoMo Catalysts Supported on Boron-Doped Sol-Gel Alumina (2006)

Dumeignil, Franck, Sato, Koichi, Imamura, Motoyasu, Matsubayashi, Nobuyuki, Payen, Edmond, Shimada, Hiromichi

A series of hydrodesulfurization (HDS) catalysts was prepared by impregnation of Co and Mo on sol-gel B-Al2O3 supports with B/Al ratios of 0, 0.02, 0.04, 0.08, 0.20, 0.32, 0.49, and 0.61. The...

Characterization and Hydrodesulfurization Activity of CoMo Catalysts Supported on Boron-Doped Sol-Gel Alumina (2006)

Dumeignil, Franck, Sato, Koichi, Imamura, Motoyasu, Matsubayashi, Nobuyuki, Payen, Edmond, Shimada, Hiromichi

A series of hydrodesulfurization (HDS) catalysts was prepared by impregnation of Co and Mo on sol-gel B-Al2O3 supports with B/Al ratios of 0, 0.02, 0.04, 0.08, 0.20, 0.32, 0.49, and 0.61. The...

Characterization and hydrodesulfurization activity of CoMo catalysts supported on sol-gel prepared Al2O3 (2005)

Dumeignil, Franck, Sato, Koichi, Imamura, Motoyasu, Matsubayashi, Nobuyuki, Payen, Edmond, Shimada, Hiromichi

A series of CoMo/Al2O3 catalysts was prepared by impregnation on a series of alumina powders synthesized by the sol-gel method with different hydrolysis ratios R (defined as [H2O] /...

Characterization and hydrodesulfurization activity of CoMo catalysts supported on sol-gel prepared Al2O3 (2005)

Dumeignil, Franck, Sato, Koichi, Imamura, Motoyasu, Matsubayashi, Nobuyuki, Payen, Edmond, Shimada, Hiromichi

A series of CoMo/Al2O3 catalysts was prepared by impregnation on a series of alumina powders synthesized by the sol-gel method with different hydrolysis ratios R (defined as [H2O] /...

Characterization and hydrodesulfurization activity of CoMo catalysts supported on sol-gel prepared Al2O3 (2005)

Dumeignil, Franck, Sato, Koichi, Imamura, Motoyasu, Matsubayashi, Nobuyuki, Payen, Edmond, Shimada, Hiromichi

A series of CoMo/Al2O3 catalysts was prepared by impregnation on a series of alumina powders synthesized by the sol-gel method with different hydrolysis ratios R (defined as [H2O] /...

Characterization and hydrodesulfurization activity of CoMo catalysts supported on sol-gel prepared Al2O3 (2005)

Dumeignil, Franck, Sato, Koichi, Imamura, Motoyasu, Matsubayashi, Nobuyuki, Payen, Edmond, Shimada, Hiromichi

A series of CoMo/Al2O3 catalysts was prepared by impregnation on a series of alumina powders synthesized by the sol-gel method with different hydrolysis ratios R (defined as [H2O] /...

Temporal spatio-velocity transform and its application to tracking and interaction (2004)

Koichi Sato, J. K. Aggarwal

www.elsevier.com/locate/cviu This paper describes the temporal spatio-velocity (TSV) transform for extracting pixel velocities from binary image sequences. The TSV transform is derived from the Hough...

Designing an Embedded Video Processing Camera Using a 16bit Microprocessor for Surveillance System (2002)

Koichi Sato, Brian L. Evans, J. K. Aggarwal

This paper describes the design and implementation of a hybrid intelligent surveillance system consisting of an embedded system and a personal computer (PC)-based system. The embedded system performs...

Upregulation of nitric oxide synthase in mice with severe hypoxia-induced pulmonary hypertension (2001)

Fagan, Karen A, Morrissey, Brian, Fouty, Brian W, Sato, Koichi, Harral, Julie, Morris, Kenneth G, ...

Abstract Background The importance of nitric oxide (NO) in hypoxic pulmonary hypertension has been demonstrated using nitric oxide synthase (NOS) knockout mice. In that model NO from endothelial NOS...

Mechanism and Kinetics of RAFT-Based Living Radical Polymerizations of Styrene and Methyl Methacrylate (ORGANIC MATERIALS CHEMISTRY-Polymeric Materials) (2001)

Goto, Atsushi, Sato, Koichi, Tsujii, Yoshinobu, Fukuda, Takeshi

The bulk polymerizations of styrene and methyl methacrylate in the presence of model polymerdithiocarbonate adducts as mediators and benzoyl peroxide (BPO) as a conventional initiator were...

Synthesis of hardware models in C with pointers and complex data structures (2001)

Luc Séméria, Koichi Sato, Giovanni De Micheli

Abstract—One of the greatest challenges in a C/CCC-based design methodology is efficiently mapping C/CCC models into hardware. Many networking and multimedia applications implemented in hardware or...

Synthesis of hardware models in C with pointers and complex data structures (2001)

Luc Séméria, Koichi Sato, Giovanni De Micheli

Abstract-- One of the greatest challenges in a C/C++-based design methodology is efficiently mapping C/C++ models into hardware. Many networking and multimedia applications implemented in hardware or...

Resolution of dynamic memory allocation and pointers for the behavioral synthesis from C (2000)

Luc Séméria, Koichi Sato, Giovanni De Micheli

Abstract-- One of the greatest challenges in C/C++-based design methodology is to efficiently map C/C++ models into hardware. Many of the networking and multimedia applications implemented in...

Resolution of dynamic memory allocation and pointers for the behavioral synthesis from C (2000)

Luc Séméria, Koichi Sato, Giovanni De Micheli

Abstract-- One of the greatest challenges in C/C++-based design methodology is to efficiently map C/C++ models into hardware. Many of the networking and multimedia applications implemented in...

Resolution of dynamic memory allocation and pointers for the behavioral synthesis from C (2000)

Luc Séméria, Koichi Sato, Giovanni De Micheli

Abstract-- One of the greatest challenges in C/C++-based design methodology is to efficiently map C/C++ models into hardware. Many of the networking and multimedia applications implemented in...

Memory Representation and Hardware Synthesis of C Code with (2000)

Luc Séméria, Koichi Sato, Giovanni De Micheli

Abstract-- We present our tool SpC which enables the synthesis of C behavioral models with pointers and complex data structures. For both analysis and synthesis, memory is represented by location...

Resolution of Dynamic Memory Allocation and Pointers for the. . . (2000)

Luc Séméria, Koichi Sato, Giovanni De Micheli

One of the greatest challenges in C/C++-based design methodology is to efficiently map C/C++ models into hardware. Many of the networking and multimedia applications implemented in hardware or mixed...

Memory Representatio and Hardware Synthesis of C Code with Pointers and Complex Data Structures (2000)

Luc Semeria, Koichi Sato, Giovanni De Micheli

We present our tool SpC which enables the synthesis of C behavioral models with pointers and complex data structures. For both analysis and synthesis, memory is represented by location sets. During...

Effect of Soil Cohesion on Critical Flow for Rill Initiation under Different Slope Conditions (1998)

Khan Farmanullah, Koichi Sato, Keiji Takase

Experiments to investigate the effect of soil cohesion under steady and uniform flow conditions were carried out in a laboratory flume at different slope degrees. Six samples of soils, four sandy and...

Effect of Soil Cohesion on Critical Flow for Rill Initiation under Different Slope Conditions (1998)

Khan Farmanullah, Koichi Sato, Keiji Takase

Experiments to investigate the effect of soil cohesion under steady and uniform flow conditions were carried out in a laboratory flume at different slope degrees. Six samples of soils, four sandy and...

Effect of Soil Cohesion on Critical Flow for Rill Initiation under Different Slope Conditions (1998)

Khan Farmanullah, Koichi Sato, Keiji Takase

Experiments to investigate the effect of soil cohesion under steady and uniform flow conditions were carried out in a laboratory flume at different slope degrees. Six samples of soils, four sandy and...

The pulmonary circulation of homozygous or heterozygous eNOS-null mice is hyperresponsive to mild hypoxia

Fagan, Karen A., Fouty, Brian W., Tyler, Robert C., Morris, Kenneth G., Hepler, Lisa K., Sato, Koichi, ...

Acute hypoxic vasoconstriction and development of hypoxic pulmonary hypertension (PHTN) are unique properties of the pulmonary circulation. The pulmonary endothelium produces vasoactive factors,...

Assessment of the role of sphingosine 1-phosphate and its receptors in high-density lipoprotein-induced stimulation of astroglial cell function.

Malchinkhuu, Enkhzol, Sato, Koichi, Muraki, Takeshi, Ishikawa, Koichi, Kuwabara, Atsushi, Okajima, Fumikazu

It has been suggested that lipoproteins in the central nervous system are involved in the regulation of several neural functions independent of cholesterol metabolism as well as those related to...

The pulmonary circulation of homozygous or heterozygous eNOS-null mice is hyperresponsive to mild hypoxia

Fagan, Karen A., Fouty, Brian W., Tyler, Robert C., Morris, Kenneth G., Hepler, Lisa K., Sato, Koichi, ...

Acute hypoxic vasoconstriction and development of hypoxic pulmonary hypertension (PHTN) are unique properties of the pulmonary circulation. The pulmonary endothelium produces vasoactive factors,...

Assessment of the role of sphingosine 1-phosphate and its receptors in high-density lipoprotein-induced stimulation of astroglial cell function.

Malchinkhuu, Enkhzol, Sato, Koichi, Muraki, Takeshi, Ishikawa, Koichi, Kuwabara, Atsushi, Okajima, Fumikazu

It has been suggested that lipoproteins in the central nervous system are involved in the regulation of several neural functions independent of cholesterol metabolism as well as those related to...

Where did the super-small sized large bowel advanced cancer come from?

Wada, Ryo, Sato, Koichi, Ichida, Takafumi, Maekawa, Hiroshi, Ogawa, Kaoru, Maekawa, Takeo

Our study suggested that the super-small sized (less than 15 mm in maximum diameter) large bowel advanced cancers, which were sometimes found, were derived from the superficial depressed-type or flat...

Platelet-derived growth factor causes endothelium-independent relaxation of rabbit mesenteric artery via the release of a prostanoid

Yamawaki, Hideyuki, Sato, Koichi, Hori, Masatoshi, Ozaki, Hiroshi, Karaki, Hideaki

Recent evidence has indicated that the mitogen platelet-derived growth factor (PDGF) can act acutely to regulate arterial tone. In this study we demonstrate that the BB isoform of PDGF (PDGF-BB) can...

Chronic vascular toxicity of doxorubicin in an organ-cultured artery

Murata, Takahisa, Yamawaki, Hideyuki, Hori, Masatoshi, Sato, Koichi, Ozaki, Hiroshi, Karaki, Hideaki

We investigated the chronic effects of doxorubicin (DXR) on morphological and functional changes in the rabbit mesenteric artery using an organ culture system.In arteries cultured with 0.3 μM DXR...

Xestospongin C, a novel blocker of IP3 receptor, attenuates the increase in cytosolic calcium level and degranulation that is induced by antigen in RBL-2H3 mast cells

Oka, Tatsuya, Sato, Koichi, Hori, Masatoshi, Ozaki, Hiroshi, Karaki, Hideaki

We evaluated the role of the cross-linking of FcεRI-mediated inositol 1,4,5-triphosphate (IP3) in the increase in cytosolic Ca2+ level ([Ca2+]i) using xestospongin C, a selective membrane permeable...

FcεRI cross-linking-induced actin assembly mediates calcium signalling in RBL-2H3 mast cells

Oka, Tatsuya, Sato, Koichi, Hori, Masatoshi, Ozaki, Hiroshi, Karaki, Hideaki

To determine the role of actin assembly in the Ca2+ signalling of mast cells activated by cross-linking of FcεRI, we examined the effects of cytochalasin D, an inhibitor of actin polymerization.In...

Impairment of PAR-2-mediated relaxation system in colonic smooth muscle after intestinal inflammation

Sato, Koichi, Ninomiya, Hiromichi, Ohkura, Shinsuke, Ozaki, Hiroshi, Nasu, Tetsuyuki

Protease-activated receptor (PAR)-2 plays important roles in intestinal inflammatory responses. Changes in PAR-2-mediated smooth muscle function may contribute pathophysiologically to the intestinal...

蠑螈(Diemictylus pyrogaster Boie)並ニ鰻(Anguilla Japonica Tand S)ニ及ボス爆音ノ影響ニ就テ

佐藤, 厚一, Sato, Koichi

著者ハ有尾兩棲類及ビ魚類ノ聽器ニ對スル爆音ノ影響ヲ研究セント欲シ、蠑螈及ビ鰻ヲ試驗動物トシテ、コレニ大砲ニヨル爆音ヲ作用セシメ、以テ...