A5025493198- Photochemistry and Electron Transfer Studies
- Advanced Chemical Physics Studies
- Nuclear Materials and Properties
- Fusion materials and technologies
- Hydrogen embrittlement and corrosion behaviors in metals
- Spectroscopy and Laser Applications
- Spectroscopy and Quantum Chemical Studies
- Free Radicals and Antioxidants
- Photodynamic Therapy Research Studies
- Catalytic Processes in Materials Science
- Innovative Microfluidic and Catalytic Techniques Innovation
- Molecular Spectroscopy and Structure
- Porphyrin and Phthalocyanine Chemistry
- Advanced Photocatalysis Techniques
- Metal and Thin Film Mechanics
- Fluid Dynamics and Turbulent Flows
- High-Temperature Coating Behaviors
- Heat Transfer Mechanisms
- TiO2 Photocatalysis and Solar Cells
- Thermodynamic and Structural Properties of Metals and Alloys
- Catalysis and Oxidation Reactions
- Mass Spectrometry Techniques and Applications
- Photochromic and Fluorescence Chemistry
- Chemical Thermodynamics and Molecular Structure
- Mechanical Engineering and Vibrations Research
Aoyama Gakuin University
2016-2025
Japan Weather Association (Japan)
2023
Mie University
2018-2020
Shirayuri University
2019
Nagoya University
2013
Tokyo Institute of Technology
2002-2012
Japan Advanced Institute of Science and Technology
2001-2012
Toyohashi University of Technology
2010
Gunma University
1985-2007
Toyota Central Research and Development Laboratories (Japan)
1987-2007
Abstract Innovative three-way catalysts containing ceria–zirconia solid solutions (CZ) with a ZrO2 content ranging from 5 to 75 mol% were developed. Such have very high oxygen storage/release capacity (OSC). The OSC of first-generation CZ was found increase linearly the amount zirconia dissolved in solution 0–20 range. thermal stability catalyst higher than that ceria. Second-generation greater developed by homogeneous coprecipitation process, followed heat-treatment below 1000 °C, enabling...
Abstract A microreaction system for organic photoreactions was developed, and the processes of diastereo-differentiating photosensitized reaction, photocatalytic oxidation reduction compounds, amine N-alkylation were examined in microspace. These model reactions proceeded very rapidly with considerably large photonic efficiencies because some distinct properties microreactors photoreactions, such as higher spatial illumination homogeneity better light penetration through entire reactor...
AimsIt has been reported that carvedilol improves cardiac sympathetic nerve activity (CSNA) in patients with dilated cardiomyopathy (DCM). However, the influence of on 123I-meta-iodobenzylguanidine (MIBG) scintigraphic findings and left ventricular (LV) remodelling not determined DCM patients.
Excited-state dynamics of 4-thiothymidine (S4-TdR) and its photosensitization to molecular oxygen in solution with UVA irradiation were investigated. Absorption emission spectra measurements revealed that photolysis S4-TdR gives rise a population T1(ππ*), following S2(ππ*) → S1(nπ*) internal conversion. In transient absorption measurement, the 355 nm laser gave broad (380−600 nm) bands triplet S4-TdR. The time-resolved thermal lensing (TRTL) signal containing component due decay was clearly...
Significant influences of sulfur and aza substitution on excited-state dynamics in thymine analogues, 6-aza-2-thiothymine (ATT) 2-thiothymine (2TT), were intensively studied by means nanosecond transient absorption time-resolved luminescence spectroscopy. Transient spectral measurements gave distinct features sufficiently longer lifetimes for both molecules attributable to the T(1) (pi pi*) state under Ar-saturated condition. Additionally, another long-lived subsequent was also observed ATT,...
Ultrafast intersystem crossing of UVA-sensitive 4-thiothymidine in aqueous solution was investigated by pump−probe transient absorption. 4-Thiothymidine the excited singlet state exhibited a distinctively different photophysical pathway from that thymidine, with to triplet manifold being dominant and formation completed within approximately 10 ps. This further supported quantum chemical calculations. We propose unique behavior photoexcited results its distinctive molecular electronic...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis of chiral dipeptides by means asymmetric hydrogenation dehydro dipeptidesIwao Ojima, Tetsuo Kogure, Noriko Yoda, Tadashi Suzuki, Momoko Yatabe, and Toshiyuki TanakaCite this: J. Org. Chem. 1982, 47, 7, 1329–1334Publication Date (Print):March 1, 1982Publication History Published online1 May 2002Published inissue 1 March 1982https://pubs.acs.org/doi/10.1021/jo00346a033https://doi.org/10.1021/jo00346a033research-articleACS...
The activation of the renin–angiotensin–aldosterone system prevents uptake norepinephrine in myocardium. However, additive effects combined spironolactone and candesartan on cardiac sympathetic nerve activity (CSNA) have not been determined. We investigated angiotensin-receptor blocker alone combination with CSNA patients congestive heart failure (CHF). <b>Methods:</b> Fifty CHF (left ventricular ejection fraction [LVEF] < 45%) were randomly assigned to plus (group A; <i>n</i> = 25) or B;...
Recent behavioral studies indicate that conditioned fear response to contextual stimuli is reduced effectively by anxiolytic 5-hydroxytryptame (5-HT)1A agonists. Since the hippocampus seems play an essential role in associative memories evoked context, it important assess effect of 5-HT1A agonists on pyramidal cell activity hippocampus. We examined effects spontaneous firing rate hippocampal CA1 neurons unanesthetized, unrestrained rats. Systemic administration selective agonists,...
A weak hydrogen bonding such as the OH/π interaction between OH group and π electron system plays an important role in conformational preference of a flexible molecule. However, experimental data showing effect substituent on have not been reported so much. In this article, laser-induced fluorescence (LIF) excitation dispersed (DF) spectra 2-(4-aminophenyl)ethanol (APE) were measured for first time. Almost all bands observed spectral region 33150-34150 cm-1 LIF spectrum successfully assigned...
Metastasis of a cardiac myxoma to the brain is extremely rare. We present case 70-year-old man who had an atrial and two metastatic myxomas in brain. The intra-cranial lesions were fact diagnosed before myxoma, since patient developed hemiparesis his symptoms occurred. Computerized tomography showed high-density lesions, larger which was removed surgically. Follow-up computerized revealed progressive enlargement second lesion then resected. Histopathological examination all benign myxomas....
Excited state characteristics of aza analogues nucleic acid bases, 8-azaadenine (8AA), 5-azacytosine (5AC), 8-azaguanine (8AG), and 6-azauracil (6AU), in acetonitrile solution were comprehensively investigated with steady absorption emission spectra, transient measurements, measurements for the singlet oxygen molecule, time-dependent density functional theory (TD-DFT) calculations. The triplet−triplet spectrum 8AA whose peak was 455 nm observed first time. Sensitized formation also...
Capability of oxygen store and release ceria-zirconia solid solution made by attrition mill process was measured thermo-gravimeter with 1mass% Pt. Ceria-zirconia conventional heating method ceria powder zirconium salt also characterized for comparison. is about three times larger than that conventionally samples. And, the point, where content 100% on relation between capability zirconia in solution, corresponds to state which valence all cerium ion being contained 3. This fact suggests...