Stimulated combination scattering of a transverse wave in a plasma layer

1971 ◽  
Vol 14 (9) ◽  
pp. 1041-1044 ◽  
Author(s):  
I. A. Kol'chugina ◽  
A. G. Litvak
Keyword(s):  
Transverse Wave ◽  
Plasma Layer ◽  
Combination Scattering

Sound as a transverse wave

2017 ◽  
Vol 13 (1) ◽  
pp. 4522-4534
Author(s):  
Armando Tomás Canero
Keyword(s):  
Quantum Mechanics ◽  
Gravitational Waves ◽  
Longitudinal Wave ◽  
Transverse Wave ◽  
Sound Propagation ◽  
Correspondence Principle ◽  
Classical Mechanics ◽  
Wave Model ◽  
Scientific Experiments

This paper presents sound propagation based on a transverse wave model which does not collide with the interpretation of physical events based on the longitudinal wave model, but responds to the correspondence principle and allows interpreting a significant number of scientific experiments that do not follow the longitudinal wave model. Among the problems that are solved are: the interpretation of the location of nodes and antinodes in a Kundt tube of classical mechanics, the traslation of phonons in the vacuum interparticle of quantum mechanics and gravitational waves in relativistic mechanics.

Modeling the interaction of a beam of elastic vibrations with the surface of an object under acoustic non-destructive testing

2020 ◽  
pp. 55-57
Author(s):  
N.P. Aleshin ◽  
M.V. Grigorev ◽  
N.V. Kryisko ◽  
A.G. Kusyiy
Keyword(s):  
Mathematical Model ◽  
Transverse Wave ◽  
Small Diameter ◽  
Non Destructive Testing ◽  
Destructive Testing ◽  
Liquid Immersion ◽  
Elastic Transverse ◽  
Elastic Transverse Wave ◽  
Physical And Mathematical Models ◽  
Non Destructive

Physical and mathematical models are developed that describe the refraction by a concave cylindrical surface of a field of an elastic transverse wave arbitrarily incident on a surface from a liquid. Immersion control of a small-diameter pipeline is considered. Keywords acoustics, ultrasound, immersion control, physical and mathematical model, bent surface, small-diameter pipeline. [email protected]

Anomalous ultrasonic velocity of the transverse wave in KH3(SeO3)2

1976 ◽  
Vol 55 (7) ◽  
pp. 435-436 ◽  
Author(s):  
Y. Makita ◽  
F. Sakurai
Keyword(s):  
Ultrasonic Velocity ◽  
Transverse Wave

Surface Immobilization of Synthetic Proteins Via Plasma Polymer Interlayers

1998 ◽  
Vol 544 ◽  
Author(s):  
Hans J Griesser ◽  
Keith M McLean ◽  
Gerrit J Beumer ◽  
Xiaoyi Gong ◽  
Peter Kingshot ◽  
...  
Keyword(s):  
Carboxylic Acid ◽  
Cell Attachment ◽  
Plasma Layer ◽  
Polymeric Materials ◽  
Covalent Immobilization ◽  
Biologically Active ◽  
Plasma Polymer ◽  
Rf Plasma ◽  
Bulk Materials ◽  
Synthetic Proteins

AbstractCoatings of biologically active molecules on synthetic ”bulk“materials are of much interest for biomedical applications since they can in principle elicit specific, predictable. controlled responses of the host environment to an implanted device. However, issues such as shelf life. storage conditions, biological safety, and enzymatic attack in the biological environment must be considered; synthetic proteins may offer advantages. In this study we investigated the covalent immobilization onto polymeric materials of synthetic proteins which possess some properties that mimic those of the natural protein collagen, particularly the ability to form triple helical structures, and thus may provide similar bio-responses while avoiding enzymatic degradation. In order to perform immobilization of these collagen-like molecules (CLMs) under mild reaction conditions, the bulk materials are first equipped with suitable surface groups using rf plasma methods. Plasma polymer interlayers offer advantages as versatile reactive platforms for the immobilization of proteins and other biologically active molecules. Application of a thin plasma polymer coating from an aldehyde monomer is particularly suitable as it enables direct immobilization of CLMs by reaction with their terminal amine groups, using reductive amination chemistry. An alternative route is via plasma polymer layers that contain carboxylic acid groups and using carbodiimnide chemistry. A third route makes use of alkylamme plasma polymer interlayers, which are less process sensitive than aldehyde and acid plasma coatings. A layer of poly-carboxylic acid compounds such as carboxylic acid terminated PAMAM-starburst dendrimers or carboxymethylated dextran is then attached by carbodiimide chemistry onto the amine plasma layer. Amine-terminated CLMs can then be immobilized onto the poly-carboxylic acid layer. Surface analytical methods have been used to characterize the immobilization steps and to assess the surface coverage. Initial cell attachment and growth assays indicate that the biological performance of the CLMs depends on their amino acid sequence.

Total transparency of an overdense plasma layer

1986 ◽  
Vol 3 (11) ◽  
pp. 1585 ◽  
Author(s):  
S. Vuković ◽  
R. Dragila
Keyword(s):  
Plasma Layer ◽  
Overdense Plasma
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