Taisei Kumazawa

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The paper investigates the hydrodynamic characteristics of a hyper-lift trawl door (HLTD), which consists of a cambered plate with two wing-end plates with the leading edge modified into an airfoil shape. Flume experiments were carried out in a circulating water tank using models having a wing area of 625 cm2 and an aspect ratio of 1.0 at camber ratios of(More)
Study on the methods to mitigate the bycatch of juvenile bigeye tuna by introducing Double-FADs with light stimulus for tuna purse seine fishery in the Western and Central Pacific Ocean 1 Study on the methods to mitigate the bycatch of juvenile bigeye tuna by introducing Double-FADs with light stimulus for tuna purse seine fishery in the Western and Central(More)
1. The concentrations of norepinephrine (NE), 3-methoxy-4-hydroxyphenylglycol (MHPG), 5-hydroxytryptamine (5-HT) and 5-hydroxyindoleacetic acid (5-HIAA) in the central nervous system of Wriggle mouse Sagami (WMS), which is a new ataxic mutant mouse, were studied. 2. NE and MHPG levels were increased most remarkably in the cerebellum. 3. 5-HT and 5-HIAA(More)
A method was developed for the simultaneous determination of dopamine (DA), epinephrine (E), norepinephrine (NE), 3,4-dihydroxyphenylacetic acid (DOPAC) and 3-methoxy-4-hydroxyphenylglycol (MHPG), as well as L-3,4-dihydroxyphenylalanine (L-DOPA) with liquid chromatography (LC) using electrochemical (EC) detection. With a ODS column and a mobile phase(More)
The concentrations of 5-hydroxytryptamine (5-HT) and its metabolite, 5-hydroxyindoleacetic acid (5-HIAA), in descending serotonergic neurons of shambling mice, which are neurologically mutant showing trunk instability and hind limb incoordination, were studied by use of both biochemical and fluorescence histochemical methods. 5-HT and 5-HIAA concentrations(More)
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