41 Result(s)
within
M. Yoshizawa
English
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Article
Improvement in the Crystallographic Phase Content and Superconducting Properties of Mechanically Alloyed MgB2
In this paper, the results of the superconductivity evaluation of MgB2 intermetallic-based superconducting materials prepared through mechanical alloying are reported. The formation of the MgB2 intermetallic phas...
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Article
Possibility of the Higher Critical Temperature on MgB2 Superconductor Synthesized by Powder-In-Sealed-Tube Method
MgB2 is a metal compound superconductor which has critical temperature value ~ 39 K. The critical temperature of MgB2 superconducting wire is higher than Nb-based superconductor, NbTi and Nb3Sn. It is a promising...
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Chapter and Conference Paper
Behavior of 144ch HAPDs for the Belle II Aerogel RICH in the Magnetic Field
We report behavior of Hybrid Avalanche Photon Detectors (HAPDs), which were newly developed for Aerogel Ring Imaging Cherenkov detector (ARICH) counter that will be installed in the endcap region of the Belle ...
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Chapter and Conference Paper
Development of Slow Control System for the Belle II ARICH Counter
A slow control system for the Aerogel Ring Imaging Cherenkov (ARICH) counter in the Belle II experiment was newly developed based on the development framework of the Belle II DAQ software. The ARICH detects Ch...
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Article
Polarized XAFS Analyses for MgB2 Thin Films
The local structure of 10, 20, and 30-nm MgB2 thin films prepared by molecular beam epitaxy (MBE) is analyzed by polarized X-ray absorption fine structure (XAFS) of Mg K-edge, which is a powerful tool for structu...
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Chapter and Conference Paper
Primary Process in Light-Harvesting Complex Studied by Pump-Repump-Probe Spectroscopy
Dark excited states of carotenoid in LH1 complex have been investigated by measuring recovery dynamics following the repump. The S* state in LH1 is different from the S1 state but is similar to the T state.
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Article
Lack of changes in carotid artery compliance with systemic nitric oxide synthase inhibition
Proximal large elastic arteries (ascending aorta and carotid artery) have an important role in buffering the pulsatile pressure generated from the left ventricle, which forwards continuous peripheral blood flo...
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Chapter and Conference Paper
Preliminary Study on Contactless Evaluation of Peripheral Perfusion during Rotary Blood Pump Support
Rotary blood pumps are commonly used for circulatory support in the patients with severe heart failure. We proposed a new evaluation method of peripheral perfusions by using a charge-coupled device. There is i...
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Chapter and Conference Paper
Hemodynamic response with an artificial myocardial assistance in chronic animal examination
Thromboembolic and haemorrhagic complications are the primary causes of mortality and morbidity in patients with artificial hearts, which are known to be induced by the interactions between blood flow and arti...
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Chapter and Conference Paper
Radio Frequency Signal Analysis for Tissue Characterization of Coronary Artery: In Vivo Intravascular Ultrasound Study
Intravascular ultrasound (IVUS) is an important clinical tool that provides high resolution cross-sectional image of coronary artery. However, it is difficult to accurately classify plaque composition by conve...
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Chapter and Conference Paper
First Trial of the Chronic Animal Examination of the Artificial Myocardial Function
Thromboembolic and haemorrhagic complications are the primary causes of mortality and morbidity in patients with artificial hearts, which are known to be induced by the interactions between blood flow and arti...
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Chapter and Conference Paper
Estimation of Emax of Assisted Hearts using Single Beat Estimation Method
In many countries, cardiovascular diseases are the main cause of death. Since the whole blood circulation depends on the heart, it cannot rest in order to recover as most of other muscles can. In some patients...
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Chapter and Conference Paper
Preliminary Study on Interactive Control for the Artificial Myocardium by Shape Memory Alloy Fibre
The authors have been develo** a sophisticated artificial myocardium for the treatment of heart failure, which is capable of supporting contractile function from the outside of the ventricle. The purpose of ...
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Article
Endoscopic submucosal dissection using sodium hyaluronate, a new technique for en bloc resection of a large superficial tumor in the colon
En bloc resection of superficial tumors in the colon is challenging but beneficial for the precise diagnosis and treatment. We have been using a novel technique of endoscopic submucosal dissection with a visco...
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Chapter and Conference Paper
Ultrafast Relaxation of the S2 Excited State in β-Carotene and its Homologs: A Role of Intermediate States
Time-resolved absorbance change and fluorescence in carotenoids with several conjugation lengths have been investigated. Ultrafast optical responses are explained by relaxation of excited states and resonant n...
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Chapter and Conference Paper
An Experimental Test of Fuzzy Controller Based on Cycle-to-Cycle Control for FES-induced Gait: Knee Joint Control with Neurologically Intact Subjects
Functional Electrical Stimulation (FES) can be effective in assisting or restoring paralyzed motor functions caused by the spinal cord injury or the celebrovascular disease. The purpose of this study was to de...
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Chapter and Conference Paper
Support Mechanism of a Newly-Designed Mechanical Artificial Myocardium using Shape Memory Alloy Fi bres
As the heart failure is caused by the decrease in the myocardial contraction, the direct mechanical myocardial assistance in response to physiological demand, that is, the synchronous support of the contractil...
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Chapter and Conference Paper
Automated Calcification Detection and Quantification in Intravascular Ultrasound Images by Adaptive Thresholding
An innovative application of adaptive thresholding is used for calcification regions detection in intravascular ultrasound images. A priori knowledge about the acoustic shadow that usually follows the calcificati...
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Article
Ultrafast optical responses of three-level systems in β-carotene: Resonance to a high-lying n 1 A g − excited state
Ultrafast optical phenomena in all-trans-β-carotene have been investigated by femtosecond absorption and fluorescence spectroscopy. Following a resonant pump pulse, both fluorescence and absorbance changes have a...
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Article
Dysfunctional baroreflex regulation of sympathetic nerve activity in remitted patients with panic disorder
Many researchers have studied the abnormalities of autonomic nervous system (ANS) such as decreased heart rate variability, which is a risk factor for sudden cardiac death, in patients with panic disorder (PD)...
