Maximized Proton Conductivity of the HPF6 Clathrate Hydrate by Structural Transformation

2008 ◽  
Vol 112 (35) ◽  
pp. 13332-13335 ◽  
Author(s):  
Jong-Ho Cha ◽  
Kyuchul Shin ◽  
Sukjeong Choi ◽  
Sangyong Lee ◽  
Huen Lee
Keyword(s):  
Proton Conductivity ◽  
Structural Transformation ◽  
Clathrate Hydrate

Tuning the dynamic magnetic behaviour and proton conductivity via water-induced structural transformation of neutral-to-cationic dysprosium layer

2021 ◽  
Author(s):  
Hao-Ling Sun ◽  
Xiao-Qin Ji ◽  
Rong Sun ◽  
Jin Xiong ◽  
Song Gao
Keyword(s):  
Fuel Cell ◽  
Proton Conductivity ◽  
Structural Transformation ◽  
Potential Application ◽  
Magnetic Behaviour ◽  
Information Storage ◽  
Scientific Interest ◽  
External Stimuli

Employing external stimuli to manipulate the synergy between magnetic and proton conductivity has stimulated extensive scientific interest due to the potential application in information storage, sensors and fuel cell, etc....

Fabrication of new structures from a 3D cobalt phosphonate network: structural transformation and proton conductivity investigation

CrystEngComm ◽  
2021 ◽  
Author(s):  
Xue Min ◽  
Hong-rui Tian ◽  
Ming Li ◽  
Di Tian
Keyword(s):  
Proton Conductivity ◽  
Structural Transformation ◽  
New Compounds ◽  
Novel Structures

Three new compounds with novel structures were prepared from cobalt 318, among which, 0-dimensional structural compound 1 shows a higher proton conductivity.

Purely inorganic frameworks based on polyoxometalate clusters with abundant phosphate groups: single-crystal to single-crystal structural transformation and remarkable proton conduction

2020 ◽  
Vol 56 (3) ◽  
pp. 391-394 ◽  
Author(s):  
Shan Zhang ◽  
Ying Lu ◽  
Xiu-Wei Sun ◽  
Zhuo Li ◽  
Tian-Yi Dang ◽  
...  
Keyword(s):  
Single Crystal ◽  
Proton Conductivity ◽  
Structural Transformation ◽  
Proton Conduction ◽  
High Proton Conductivity ◽  
High Proton ◽  
Crystal Structural ◽  
Inorganic Framework ◽  
Phosphate Groups ◽  
New Framework

A pure-inorganic framework 1 underwent a SCSC transformation to form a new framework 1′, which has high proton conductivity.

The structure of pre-mRNA and mRNA from erythroid cells

1978 ◽  
Vol 36 (2) ◽  
pp. 234-235
Author(s):  
A.-M. Ladhoff ◽  
B.J. Thiele ◽  
Ch. Coutelle ◽  
S. Rosenthal
Keyword(s):  
Bone Marrow ◽  
Structural Transformation ◽  
Electron Micrographs ◽  
Ammonium Acetate ◽  
Bone Marrow Cells ◽  
Erythroid Cells ◽  
Globin Mrna ◽  
Ordered Structures ◽  
Rabbit Bone ◽  
Rabbit Reticulocytes

The suggested precursor-product relationship between the nuclear pre-mRNA and the cytoplasmic mRNA has created increased interest also in the structure of these RNA species. Previously we have been published electron micrographs of individual pre-mRNA molecules from erythroid cells. An intersting observation was the appearance of a contour, probably corresponding to higher ordered structures, on one end of 10 % of the pre-mRNA molecules from erythroid rabbit bone marrow cells (Fig. 1A). A virtual similar contour was observed in molecules of 9S globin mRNA from rabbit reticulocytes (Fig. 1B). A structural transformation in a linear contour occurs if the RNA is heated for 10 min to 90°C in the presence of 80 % formamide. This structural transformation is reversible when the denatured RNA is precipitated and redissolved in 0.2 M ammonium acetate.

Structural Transformation of a Germanium Σ=13 (510) [001] Tilt Grain Boundary under the Electron Beam

1990 ◽  
Vol 48 (1) ◽  
pp. 52-53 ◽  
Author(s):  
Jean-Luc Rouvière ◽  
Alain Bourret
Keyword(s):  
Electron Microscopy ◽  
High Resolution ◽  
Grain Boundary ◽  
Structural Transformation ◽  
Mirror Symmetry ◽  
High Resolution Electron Microscopy ◽  
Structural Transformations ◽  
Covalent Bonds ◽  
Resolution Electron ◽  
Tilt Grain Boundary

The possible structural transformations during the sample preparations and the sample observations are important issues in electron microscopy. Several publications of High Resolution Electron Microscopy (HREM) have reported that structural transformations and evaporation of the thin parts of a specimen could happen in the microscope. Diffusion and preferential etchings could also occur during the sample preparation.Here we report a structural transformation of a germanium Σ=13 (510) [001] tilt grain boundary that occurred in a medium-voltage electron microscopy (JEOL 400KV).Among the different (001) tilt grain boundaries whose atomic structures were entirely determined by High Resolution Electron Microscopy (Σ = 5(310), Σ = 13 (320), Σ = 13 (510), Σ = 65 (1130), Σ = 25 (710) and Σ = 41 (910), the Σ = 13 (510) interface is the most interesting. It exhibits two kinds of structures. One of them, the M-structure, has tetracoordinated covalent bonds and is periodic (fig. 1). The other, the U-structure, is also tetracoordinated but is not strictly periodic (fig. 2). It is composed of a periodically repeated constant part that separates variable cores where some atoms can have several stable positions. The M-structure has a mirror glide symmetry. At Scherzer defocus, its HREM images have characteristic groups of three big white dots that are distributed on alternatively facing right and left arcs (fig. 1). The (001) projection of the U-structure has an apparent mirror symmetry, the portions of good coincidence zones (“perfect crystal structure”) regularly separate the variable cores regions (fig. 2).

STRUCTURAL TRANSFORMATION STUDIED BY THERMAL EXPANSION ON SINGLE CRYSTALS V3Si IN NORMAL AND SUPERCONDUCTING STATES

1978 ◽  
Vol 39 (C6) ◽  
pp. C6-406-C6-407 ◽  
Author(s):  
T. Fukase ◽  
T. Kobayashi ◽  
M. Isino ◽  
N. Toyota ◽  
Y. Muto
Keyword(s):  
Thermal Expansion ◽  
Single Crystals ◽  
Structural Transformation

Between Modernization and Stagnation: Economic Policy in 2012

2013 ◽  
pp. 4-23 ◽  
Author(s):  
V. Mau
Keyword(s):  
Economic Policy ◽  
Economic Development ◽  
Russian Economic Development ◽  
Structural Transformation ◽  
Economic Performance ◽  
Historical Analysis ◽  
Oil Boom ◽  
The World

The paper deals with the trends in the world and Russian economies towards development of a new post-crisis system, including technological and structural transformation. Three main scenarios of Russian economic development (conservative, innovation and acceleration) are discussed basing on historical analysis of Russian economic performance since 1970-s when oil boom started. On this basis key challenges of economic policy in 2013 are discussed.

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