A5007627443- Material Dynamics and Properties
- Spectroscopy and Quantum Chemical Studies
- Thermodynamic properties of mixtures
- Glass properties and applications
- Chemical and Physical Properties in Aqueous Solutions
- Solid-state spectroscopy and crystallography
- Phase Equilibria and Thermodynamics
- Clay minerals and soil interactions
- Soil Carbon and Nitrogen Dynamics
- Chemical Thermodynamics and Molecular Structure
- nanoparticles nucleation surface interactions
- Molecular spectroscopy and chirality
- Mineralogy and Gemology Studies
- Photochemistry and Electron Transfer Studies
- Electrochemical Analysis and Applications
- Freezing and Crystallization Processes
- Luminescence Properties of Advanced Materials
- Iron oxide chemistry and applications
- Thermal and Kinetic Analysis
- Lanthanide and Transition Metal Complexes
- Plant Ecology and Soil Science
- Isotope Analysis in Ecology
- Agriculture, Soil, Plant Science
- Thermodynamic and Structural Properties of Metals and Alloys
- Chemical Synthesis and Characterization
Tohoku University
2012-2024
National Defence Academy
1986-2015
National Defense Academy of Japan
2002-2013
Yokohama City University
2007-2009
Fujitsu (China)
2008
Tohoku Agricultural Research Center
2006
Bio-oriented Technology Research Advancement Institution
2005
Agricultural Research Center
2005
Purdue University West Lafayette
1975-1994
Arizona State University
1994
The temperature at which "clean" supercooled water freezes has been determined as a function of pressure up to 3 kilobars, using differential thermal analysis technique on subdivided samples. supercooling limit such samples, -38 degrees C normal pressure, is lowered by initial increase reaching minimum value -92 2.00 kilobars.
Significance Genetically improving the root system architectures of plants is an effective strategy for developing climate-resilient crops. In this study, we revealed that a cloned rice quantitative trait locus associated with growth angle, qSOR1 , DRO1 homolog involved in gravitropic responses. The loss-of-function allele qsor1 resulted roots developed on soil surface and enabled to avoid reducing stress found saline paddy soils and, consequently, increased yields. We show homologs could be...
A new high pressure volumetric technique, which employs a fine glass capillary as joint sample chamber and vessel is described. Because of the small samples used, it suitable for supercooled liquid studies. The compressibilities κT water D2O have been determined over applied range 0.1–190 MPa (1–1900 bar) at temperatures in 25–30°C. anomalous low temperature increases reported earlier H2O 1 bar are found higher D2O, expected. In both liquids, cause regions to be displaced lower temperatures....
With glass capillary pressure vessels it has been possible to study the effect of on temperature maximum density (TMD) and "sharpness" in liquid H(2)O D(2)O important but little-studied supercooled regime. A 1200 bars produces a 33 degrees C depression TMD these liquids considerable reduction sharpness. Comparison with rather flat for SiO(2) supports notion that presence or absence anomalies "tetrahèdral" depends average bridge-bond angle, which is evidently unusually large water at normal pressure.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHomogeneous nucleation and glass formation in aqueous alkali halide solutions at high pressuresH. Kanno C. A. AngellCite this: J. Phys. Chem. 1977, 81, 26, 2639–2643Publication Date (Print):December 1, 1977Publication History Published online1 May 2002Published inissue 1 December 1977https://pubs.acs.org/doi/10.1021/j100541a013https://doi.org/10.1021/j100541a013research-articleACS PublicationsRequest reuse permissionsArticle...
A Raman spectroscopic study has been carried out for aqueous sulfuric acid of various concentrations at room temperature and in the glassy state. Temperature dependence spectra was also investigated from 44 to −40 °C. Anomalous Tg (glass transition temperature) behavior solution ∼86 wt % H2SO4 is interpreted terms ionic species involved spectral changes. It shown that ionization increases exponentially with decreasing temperature. Complete attained up ∼50 concentration solution.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRaman study of aqueous rare earth nitrate solutions in liquid and glassy statesH. Kanno J. HiraishiCite this: Phys. Chem. 1984, 88, 13, 2787–2792Publication Date (Print):June 1, 1984Publication History Published online1 May 2002Published inissue 1 June 1984https://pubs.acs.org/doi/10.1021/j150657a023https://doi.org/10.1021/j150657a023research-articleACS PublicationsRequest reuse permissionsArticle Views446Altmetric-Citations60LEARN ABOUT THESE...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAnomalous concentration dependence of the inner-sphere hydration number change in aqueous europium(III) chloride and gadolinium solutionsH. Kanno J. HiraishiCite this: Phys. Chem. 1982, 86, 9, 1488–1490Publication Date (Print):April 1, 1982Publication History Published online1 May 2002Published inissue 1 April 1982https://pubs.acs.org/doi/10.1021/j100206a002https://doi.org/10.1021/j100206a002research-articleACS PublicationsRequest reuse...
Using a refinement of capillary technique described earlier precise PVT data on D2O between 0.1 and 140 MPa down to −30 °C have been obtained, the pressure dependence volumetric behavior in vicinity well-known density maximum has examined. The ’’sharpness’’ maximum, defined by dα/dT at α=0 K−1, decreases with increasing simple linear manner. Extrapolations suggest that about 250 would same sharpness as known for tetrahedral network liquid SiO2, but occur temperatures too low be observed. A...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHydrations of metal ions in aqueous electrolyte solutions: a Raman studyH. KannoCite this: J. Phys. Chem. 1988, 92, 14, 4232–4236Publication Date (Print):July 1, 1988Publication History Published online1 May 2002Published inissue 1 July 1988https://pubs.acs.org/doi/10.1021/j100325a047https://doi.org/10.1021/j100325a047research-articleACS PublicationsRequest reuse permissionsArticle Views414Altmetric-Citations55LEARN ABOUT THESE METRICSArticle Views...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRaman spectroscopic study of aqueous LiX and CaX2 solutions (X = Cl, Br, I) in the glassy stateH. Kanno J. HiraishiCite this: Phys. Chem. 1983, 87, 19, 3664–3670Publication Date (Print):September 1, 1983Publication History Published online1 May 2002Published inissue 1 September 1983https://pubs.acs.org/doi/10.1021/j100242a019https://doi.org/10.1021/j100242a019research-articleACS PublicationsRequest reuse permissionsArticle...
Abstract Raman spectra have been obtained for aqueous solutions of Fe(NO 3 ) , FeCl 2 and in the glassy state where R = moles water/moles salt 10–20. The predominant jonic species these are [Fe(H O) 6 ] 3+ 2+ trans ‐ [Fecl (H 4 + respectively. second dominant ferric solution ( 20) seems to be [FeCl(H 5 ion, which is inferred from comparison frequencies FeOH stretching bands.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDouble glass transitions in aqueous lithium chloride solutions vitrified at high pressures: evidence for a liquid-liquid immiscibilityH. KannoCite this: J. Phys. Chem. 1987, 91, 7, 1967–1971Publication Date (Print):March 1, 1987Publication History Published online1 May 2002Published inissue 1 March 1987https://doi.org/10.1021/j100291a057RIGHTS & PERMISSIONSArticle Views174Altmetric-Citations42LEARN ABOUT THESE METRICSArticle Views are the...
Abstract Raman spectra of aqueous zinc halide solutions are obtained in both liquid and glassy states. It is shown that the detection characterization weak low frequency bands much easier spectrum for state than state. Comparison shows tetrahedral ZnX ions most stable ionic entities
Abstract Isotopic fractionation behavior in a thermal ion source was theroretically studied. An equation relating to the observed isotope ratio with evaporated fraction of sample derived under conditions where two kinds chemical species, atomic (atomic ions and neutral atoms) molecular (molecular molecules) simultaneously evaporate from filament. It demonstrated that integrations all currents for isotopes do not necessarily give true when evaporating species are ionized at different rates....
We present visual evidence of vivianite formation based on rice root samples from the plow layer soil an ordinary paddy field. Vivianite crystal aggregates were colorless when sampled but turned blue within a few hours under optical microscope. The modal size was approximately 0.05 mm in diameter. Their X‐ray microdiffraction pattern identical to that reported previously, and elemental composition very similar according energy dispersive analysis. Furthermore, we found amount roots can be...