A5038098249- Catalytic Processes in Materials Science
- Zeolite Catalysis and Synthesis
- Catalysis and Hydrodesulfurization Studies
- Catalysis and Oxidation Reactions
- Chemical Synthesis and Characterization
- Mesoporous Materials and Catalysis
- Catalysts for Methane Reforming
- Silicon and Solar Cell Technologies
- Integrated Circuits and Semiconductor Failure Analysis
- Industrial Gas Emission Control
- Nuclear reactor physics and engineering
- Analog and Mixed-Signal Circuit Design
- Ammonia Synthesis and Nitrogen Reduction
- Chemical Synthesis and Reactions
- Rare-earth and actinide compounds
- Plant Pathogens and Fungal Diseases
- Nuclear Engineering Thermal-Hydraulics
- Head and Neck Surgical Oncology
- Meningioma and schwannoma management
- Inorganic and Organometallic Chemistry
- Oxidative Organic Chemistry Reactions
- Cerebrospinal fluid and hydrocephalus
- Gas Sensing Nanomaterials and Sensors
- Atomic and Subatomic Physics Research
- Semiconductor materials and devices
Gunma University
2006-2023
Yamato Municipal Hospital
2022
DIC (Japan)
2021-2022
Maebashi Red Cross Hospital
2021
Kitasato University
2006-2019
Mitsui Chemicals (Germany)
2011-2019
Mitsui Chemicals (Japan)
2019
Yokohama National University
2008-2019
Nihon University
2013
Meiji University
2010-2012
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTLaser flash photolysis study of the hydrogen atom transfer reaction from triplet 1-naphthol to ground benzophenoneHaruo Shizuka, Hiroyuki Hagiwara, and Masaru FukushimaCite this: J. Am. Chem. Soc. 1985, 107, 26, 7816–7823Publication Date (Print):December 1, 1985Publication History Published online1 May 2002Published inissue 1 December 1985https://pubs.acs.org/doi/10.1021/ja00312a003https://doi.org/10.1021/ja00312a003research-articleACS...
Counter anions of active components on catalysts were found to affect catalytic activities for NO reduction with NH3. Halide ions promoted activity in copper and iron catalysts, but lowered it chromium manganese catalysts. The most favorable electronic state a cation was investigated by changing counter and/or carriers.
Thermionic emission patterns from the single-crystal LaB6 [100], [110], [111], and [210] tips have been observed under Schottky condition. The are interpreted on basis of a model involving an anisotropic work function LaB6; regions around [111] crystal orientation high-work function, while those low function. This also explains qualitatively order total currents tips. predominantly consist conical face rather than top this experimental Changes in pattern cathode surface operation at 10−4...
Hemangioblastoma is a benign tumor of the cerebellum, and treatment involves surgical excision, both as initial also in case recurrence. Recurrence hemangioblastoma can be local due to incomplete resection or distant separate from region. Local recurrence largely avoided by verifying for any residual intraoperatively before closure. In this study, we used intraoperative fluorescent diagnosis using 5-aminolevulinic acid (5-ALA) verify presence during resection. Nine patients with were given 1...
Abstract Dealumination of a framework H-ZSM-5 zeolites with water was investigated by 27Al MASNMR. It found that the rate dealumination is apparently second-order dependent on concentration aluminium.
A method for extracting coherent vorticity sheets and current out of three-dimensional homogeneous magnetohydrodynamic (MHD) turbulence is proposed, which based on the orthogonal wavelet decomposition density fields. Thresholding coefficients allows both fields to be split into incoherent parts. The analyzed are obtained by direct numerical simulation (DNS) forced incompressible MHD without mean magnetic field, using a classical Fourier spectral at resolution 5123. Coherent extracted from...
The composition profile of tungsten silicide films deposited by low‐pressure chemical vapor deposition employing dichlorosilane (DCS) reduction hexafluoride is studied. Diffusion the reaction rate‐limiting process at chuck temperatures above 550°C and uniform in‐depth profiles can be obtained. Below 550°C, however, not for surface process. Tungsten‐rich layers with a Si composition, , 1.5, are initially due to surface. This layer amorphous or microcrystalline. Thereafter, silicon content...
Objective: When the bone flap is removed in a pterional craniotomy, middle meningeal artery (MMA) should be gently dissected to minimize blood loss. However, when MMA pierces bony tunnel groove it easily damaged upon elevation. We have performed an anatomic study of this render craniotomy safer.
✓ A 50-year-old woman with a parietal intracerebral hematoma was initially treated by evacuation. Initial preoperative and follow-up angiograms obtained 6 months later demonstrated no pial arteriovenous malformations (AVMs). She suffered subarachnoid hemorrhage 8 years later. Results of cerebral angiography revealed the development previously undetected multiple AVMs. This appears to be first reported case AVMs in an adult, on serial angiography.
Conversion of synthesis gas to hydrocarbons was carried out in a two-stage system consisting methanol reactor followed by hydrocarbon-forming containg H-ZSM-5 zeolite. It found that the zeolite catalyst active olefin hydrogenation.
Tolprocarb developed by Mitsui Chemicals Agro, Inc. (Tokyo, Japan) was discovered as a new oomycete fungicide. However, its antifungal spectrum and action mechanisms against fungi are completely different from those of the original compound, iprovalicarb. has potent highly controlled effect on rice blast fungus Magnaporthe grisea, mode revealed to be inhibition polyketide synthase in melanin biosynthesis pathway. In addition, tolprocarb induced systemic acquired resistance Arabidopsis...
Abstract Pulse radiolysis has been used to determine reaction rate constants of chlorine atoms with various alcohols in carbon tetrachloride solutions by competition kinetic methods taking the absorption complex formed dimethyl sulfoxide and as a reference system.
Abstract Effect of alkali metal cations on dealumination a framework ZSM-5 zeolite with water was investigated by using 27Al MASNMR and FT-IR. It found that under the steaming conditions 600 °C for 13.5 h, is quantitatively controlled introduced an ion-exchange method, leaving aluminium in concentrations nearly equal to those cations.
Active carbons prepared from nitrogen containing compounds were found to show high activity for SO2removal. Enhancement of the NO reduction was realized by supporting vanadium ions on these active carbons. Regeneration catalyst examined with various reducing agents. The SO2 removal recovered removing sulfate NH3 at 350 °C. 200 h life test present carried out simultaneous SOx and NOx.
Damage formed by BF+2 and As+ implantations in Si was evaluated quantitatively. The density of displaced atoms (Dda) determined from 1.5 MeV He+ Rutherford backscattering spectrometery. Dda increased 4.7×1016 to 1.6×1017 cm−2 with the dose 6.0×1013 1.3×1014 cm−2. However, saturates at around 4×1017 for all doses above 5×1014 thermal wave signal intensity shows same dependence as Dda. This result that has a close relation ion implantation. Therefore, quantitative damage monitorings can be...
We have designed, fabricated and measured a second-order multibit switched-capacitor complex bandpass ΔΣAD modulator to evaluate our new algorithms architecture. propose structure of filter in the forward path with I, Q dynamic matching, that is equivalent conventional one but can be divided into two separate parts. As result, AS modulator, which employs proposed also parts, there are no signal lines crossing between upper lower paths formed by filters feedback DACs. Therefore, layout design...
オキシクロリネーションにおける触媒の活性およびその反応機構に関する知見をうるために,アルミナ,シリカおよびセライトを担体とし,これに種々の金属塩化物を担持した触媒をもちいて,ディーコン反応とオキシクロリネーション反応を検討した。ディーコン反応活性の最も高い塩化クロム(III)触媒のオキシクロリネーション活性は最も低い。また塩化銅(II)触媒の260℃における転化率はオキシクロリネーションの93%より著しく低く,1%以下であった。担持塩化銅(II)触媒の反応条件下における状態のX線回折測定によれば,塩化銅(II),塩化銅(I)が共存し,しかも塩化銅(I)の比率は反応温度が高くなると増加した。これらの事実はオキシクロリネーション反応が,次に示す二段酸化還元反応で進むことを示し,律速段階は低転化率のときは反応(1)であり,高転化率になると反応(2)に移ることを意味している。2CuCl2+C2H4→CH2ClCH2Cl+Cu2Cl2(1)Cu2Cl2+2HCl+1/2 O2→2CuCl2+H2O(2)
${\text{Co}}_{4}{\text{B}}_{6}{\text{O}}_{13}$ contains undistorted tetrahedral clusters of magnetic ${\text{Co}}^{2+}$ ions. The high-field magnetization this magnet exhibits a periodic undulation indicating quantization the total spin number per cluster. Measurements susceptibility and specific heat reveal that ground state is composed several different singlet states, reflecting high symmetry tetrahedron. An exact diagonalization calculation taking account single-ion-type anisotropies...