The course as important structural unit in the system of teaching practiced in the rhythmical gymnastics

2007 ◽  
Author(s):  
D. Tsopani ◽  
G. Dallas ◽  
N. Tasika
Keyword(s):  
Structural Unit

The Collagenic Molecular Structural Unit of Solid State Complexes

1971 ◽  
Vol 29 ◽  
pp. 478-479
Author(s):  
Kenneth M. Richter ◽  
John A. Schilling
Keyword(s):  
Molecular Weight ◽  
Solid State ◽  
Structural Unit ◽  
X Ray Diffraction ◽  
X Ray ◽  
Naoh Treatment

The structural unit of solid state collagen complexes has been reported by Porter and Vanamee via EM and by Cowan, North and Randall via x-ray diffraction to be an ellipsoidal unit of 210-270 A. length by 50-100 A. diameter. It subsequently was independently demonstrated by us in dog tendon, dermis, and induced complexes. Its detailed morphologic, dimensional and molecular weight (MW) aspects have now been determined. It is pear-shaped in long profile with m diameters of 57 and 108 A. and m length of 263 A. (Fig. 1, tendon, KMnO4 fixation, Na-tungstate; Fig. 2a, schematic of unit in long, C, and x-sectional profiles of its thin, xB, and bulbous, xA portions; Fig. 2b, tendon essentially unmodified by ether and 0.4 N NaOH treatment, Na-tungstate). The unit consists of a uniquely coild cable, c, of ṁ 22.9 A. diameter and length of 2580-3316 A. The cable consists of three 2nd-strands, s, each of m 10.6 A.

A Modern Concept of the Cell as a Structural Unit

1940 ◽  
Vol 74 (750) ◽  
pp. 5-24 ◽  
Author(s):  
George A. Baitsell
Keyword(s):  
Structural Unit ◽  
Modern Concept

Quantitative relationship between the density and structural unit of alpha alumina prepared from gibbsite and boehmite

2021 ◽  
Author(s):  
Xiaoyang Wang ◽  
Guihua Liu ◽  
Tiangui Qi ◽  
Wenqiang Huang ◽  
Xiaobin Li ◽  
...  
Keyword(s):  
Structural Unit ◽  
Quantitative Relationship ◽  
Alpha Alumina

scholarly journals Chitosan based antibacterial composite materials for leather industry: a review

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Linlin Yuan ◽  
Qingda Yao ◽  
Yongxian Liang ◽  
Ye Dan ◽  
Yixiao Wang ◽  
...  
Keyword(s):  
Extracellular Matrix ◽  
Polyethylene Glycol ◽  
Composite Materials ◽  
Water Treatment ◽  
Future Development ◽  
Structural Unit ◽  
Important Application ◽  
Antibacterial Mechanism ◽  
Leather Industry ◽  
Preparation Methods

Abstract Chitosan is an amorphous translucent substance with a structural unit similar to the polysaccharide structure of the extracellular matrix, It has good antibacterial, biocompatible, and degradable properties. It has important application value in leather, water treatment, medicine, food and other fields, so chitosan and its modified products have received widespread attention. This article reviewed the preparation methods of chitosan-based antibacterial composites in recent years, including chitosan/collagen, chitosan/graphene, chitosan/tannic acid, and chitosan/polyethylene glycol composite materials, elaborates their modification methods and antibacterial mechanism were reviewed in detail, and its applications in the leather industry as antibacterial auxiliaries and water treatment antibacterial adsorption materials were discussed. Finally, the future development and challenges of chitosan-based composite materials in the leather industry were forecasted. Graphical abstract

Interpretation of Alumina/Yttrium-Aluminum Garnet Orientation Relationships by Geometric Criteria

1990 ◽  
Vol 209 ◽  
Author(s):  
R.S. Hay ◽  
L.E. Matson
Keyword(s):  
Structural Unit ◽  
Yttrium Aluminum Garnet ◽  
Sol Gel ◽  
Interface Energy ◽  
Interface Structure ◽  
Invariant Line ◽  
Directionally Solidified ◽  
Orientation Relationships ◽  
Yttrium Aluminum

ABSTRACTGeometric criteria for low interface energy and interface structure were tested for the cubic-rhombohedral system YAG/alumina. Orientation relationships near (111){110}a // (112){110}y and facets on (111)a(112)y were observed in both sol-gel derived composites and directionally solidified eutectic composites. The ΣYAG=12 near-CSL of 2{111}, {110}, {112} was inferred to be the preferred structural unit. Dislocations with b=1/3{111}a and b=1/2{110}a were observed and inferred to accomodate deviation from the structural unit, respectively. The {110}a,y direction met some of the criteria for an invariant line. Although the OR was explained by geometric criteria it would have been difficult to predict it with such criteria

Structural and optical properties of lithium bismuthate glasses

2002 ◽  
Vol 17 (8) ◽  
pp. 1941-1944 ◽  
Author(s):  
A. Pan ◽  
A. Ghosh
Keyword(s):  
Optical Properties ◽  
Glass Transition ◽  
Transition Temperature ◽  
Structural Unit ◽  
Infrared Region ◽  
Compositional Variation ◽  
Optical Study ◽  
Structural And Optical Properties ◽  
Transmission Window ◽  
Ion Conducting

Structural and optical properties of ion - conducting lithium bismuthate glasses are reported here. The structure of these glasses has been explored from the compositional variation of the density, molar volume, and glass transition temperature. The optical study in the visible and infrared region indicates a large transmission window for these glasses. The BiO6 octahedra were identified as the main structural unit from the Raman spectra of these bismuthate glasses.

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