scholarly journals High Frequency Spectroscopic Study of the Bound State of Water in PEG–H2O System during Heating from Frozen State

2010 ◽  
Vol 26 (3) ◽  
pp. 337-341 ◽  
Author(s):  
Takaya TAKEI ◽  
Yoshinori SUGITANI
Keyword(s):  
Spectroscopic Study ◽  
High Frequency ◽  
Bound State ◽  
State Of Water ◽  
Frozen State

Spectroscopic study of chemical composition of high-frequency glow-discharge in halogen-containing gas mixtures

1985 ◽  
Vol 43 (3) ◽  
pp. 971-975
Author(s):  
O. P. Gushchin ◽  
V. M. Dolgopolov ◽  
L. E. Pereverzev ◽  
D. I. Slovetskii
Keyword(s):  
Chemical Composition ◽  
Glow Discharge ◽  
Spectroscopic Study ◽  
High Frequency ◽  
Gas Mixtures

Infrared Spectroscopic Study of NO and NH3 Adsorption on Alumina-Supported Nickel Oxide Catalysts

2002 ◽  
Vol 216 (6) ◽  
Author(s):  
D.G. Stoilova ◽  
V.G. Koleva ◽  
K.T. Cheshkova
Keyword(s):  
Nickel Oxide ◽  
Spectroscopic Study ◽  
Pore Volume ◽  
High Frequency ◽  
Frequency Region ◽  
Oxide Catalysts ◽  
Infrared Spectroscopic Study ◽  
High Frequency Region ◽  
Nh3 Adsorption ◽  
Surface Changes

The surface changes of alumina due to supported nickel oxide species (samples are prepared by step-wise pore volume impregnation with formate solutions) are studied in the high frequency region (OH stretches) by the method of

scholarly journals Gradient NMR Method for Studies of Water Translational Diffusion in Plants

Membranes ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 487
Author(s):  
Alexander Anisimov
Keyword(s):  
Spin Echo ◽  
Magnetic Field Gradient ◽  
Bound State ◽  
External Pressure ◽  
Nmr Method ◽  
State Of Water ◽  
Gas Atmosphere ◽  
History Of ◽  
Retrospective Nature ◽  
Main Ideas

The review of a retrospective nature shows the stages of development of the spin-echo NMR method with constant and pulsed gradient of the magnetic field (gradient NMR) for the study of water diffusion in plant roots. The history of the initial use of gradient NMR for plants, in which it was not possible to experimentally confirm the bound state of water in cells, is described. The work presents the main ideas on which the technology of measuring diffusion by the spin-echo NMR method is built. Special attention is paid to the manifestations and record of the restricted diffusion phenomenon, permeability of membranes, along with the finite formulae used in real experiments. As examples, it gives the non-trivial results of studies of water transfer in roots through the symplastic system, from cell to cell through intercellular contacts with plasmodesmata, through aquaporins, transfer under the influence of changes in external pressure, and the composition of the gas atmosphere.

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