3D diamond‐containing nanocomposites based on hybrid polyurethane–poly(2‐hydroxyethyl methacrylate) semi‐IPNs: Composition‐nanostructure‐segmental dynamics‐elastic properties relationships

2008 ◽  
Vol 46 (16) ◽  
pp. 1696-1712 ◽  
Author(s):  
L. V. Karabanova ◽  
V. A. Bershtein ◽  
T. E. Sukhanova ◽  
P. N. Yakushev ◽  
L. M. Egorova ◽  
...  
Keyword(s):  
Elastic Properties ◽  
Hydroxyethyl Methacrylate ◽  
Segmental Dynamics ◽  
Hybrid Polyurethane

Local Segmental Dynamics of Poly(2-hydroxyethyl Methacrylate) in Methanolic Solution by Spin Label X-Band ESR†

2004 ◽  
Vol 108 (27) ◽  
pp. 9482-9490 ◽  
Author(s):  
Antonín Marek ◽  
Jiří Czernek ◽  
Miloš Steinhart ◽  
Jiří Labský ◽  
Petr Štěpánek ◽  
...  
Keyword(s):  
Spin Label ◽  
Hydroxyethyl Methacrylate ◽  
Segmental Dynamics ◽  
Methanolic Solution ◽  
X Band

The structure of poly(ethyl acrylate-co-hydroxyethyl methacrylate) copolymer networks by segmental dynamics studies based on structural relaxation experiments

Polymer ◽  
2004 ◽  
Vol 45 (7) ◽  
pp. 2349-2355 ◽  
Author(s):  
M. Salmerón Sánchez ◽  
R. Brı́gido Diego ◽  
S.A.M Iannazzo ◽  
J.L. Gómez Ribelles ◽  
M. Monleón Pradas
Keyword(s):  
Structural Relaxation ◽  
Ethyl Acrylate ◽  
Hydroxyethyl Methacrylate ◽  
Segmental Dynamics ◽  
Relaxation Experiments ◽  
Methacrylate Copolymer

Electron Microscopy and image reconstruction reveal the structural basis for spectrin's elastic properties

1992 ◽  
Vol 50 (1) ◽  
pp. 510-511
Author(s):  
Amy M. McGough ◽  
Robert Josephs
Keyword(s):  
Electron Microscopy ◽  
Elastic Properties ◽  
Conformational Changes ◽  
Quaternary Structure ◽  
Three Dimensional ◽  
Membrane Skeleton ◽  
Projection Algorithm ◽  
Structural Basis ◽  
Iterative Approximation ◽  
Membrane Skeletons

The remarkable deformability of the erythrocyte derives in large part from the elastic properties of spectrin, the major component of the membrane skeleton. It is generally accepted that spectrin's elasticity arises from marked conformational changes which include variations in its overall length (1). In this work the structure of spectrin in partially expanded membrane skeletons was studied by electron microscopy to determine the molecular basis for spectrin's elastic properties. Spectrin molecules were analysed with respect to three features: length, conformation, and quaternary structure. The results of these studies lead to a model of how spectrin mediates the elastic deformation of the erythrocyte.Membrane skeletons were isolated from erythrocyte membrane ghosts, negatively stained, and examined by transmission electron microscopy (2). Particle lengths and end-to-end distances were measured from enlarged prints using the computer program MACMEASURE. Spectrin conformation (straightness) was assessed by calculating the particles’ correlation length by iterative approximation (3). Digitised spectrin images were correlation averaged or Fourier filtered to improve their signal-to-noise ratios. Three-dimensional reconstructions were performed using a suite of programs which were based on the filtered back-projection algorithm and executed on a cluster of Microvax 3200 workstations (4).

The buckling of thin EM specimens

1990 ◽  
Vol 48 (4) ◽  
pp. 850-851
Author(s):  
A.R. Thölén
Keyword(s):  
Electron Microscope ◽  
Elastic Properties ◽  
Crystal Surface ◽  
Specimen Surface ◽  
Radius Of Curvature ◽  
Thin Foils ◽  
Thin Electron ◽  
Regular Patterns

Thin electron microscope specimens often contain irregular bend contours (Figs. 1-3). Very regular bend patterns have, however, been observed around holes in some ion-milled specimens. The purpose of this investigation is twofold. Firstly, to find the geometry of bent specimens and the elastic properties of extremely thin foils and secondly, to obtain more information about the background to the observed regular patterns.The specimen surface is described by z = f(x,y,p), where p is a parameter, eg. the radius of curvature of a sphere. The beam is entering along the z—direction, which coincides with the foil normal, FN, of the undisturbed crystal surface (z = 0). We have here used FN = [001]. Furthermore some low indexed reflections are chosen around the pole FN and in our fcc crystal the following g-vectors are selected:

The Hydrostatic Pressure Effect on Elastic Properties of B2-Phase Single Crystals Ti50Ni48Fe2and Ti50Ni45Fe5Alloys

1995 ◽  
Vol 05 (C8) ◽  
pp. C8-729-C8-734
Author(s):  
A.I. Lotkov ◽  
V.P. Lapshin ◽  
V.A. Goncharova ◽  
H.V Chernysheva ◽  
V.N. Grishkov ◽  
...  
Keyword(s):  
Hydrostatic Pressure ◽  
Single Crystals ◽  
Elastic Properties ◽  
Pressure Effect ◽  
B2 Phase

Elastic properties of solids at high pressure

2015 ◽  
Vol 185 (11) ◽  
pp. 1215-1224 ◽  
Author(s):  
Yurii Kh. Vekilov ◽  
Oleg M. Krasil'nikov ◽  
Andrei V. Lugovskoy
Keyword(s):  
High Pressure ◽  
Elastic Properties
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