scholarly journals ON A RIGOROUS PROOF OF THE EXISTENCE OF COMPLEX WAVES IN A DIELECTRIC WAVEGUIDE OF CIRCULAR CROSS SECTION

2018 ◽  
Vol 82 ◽  
pp. 137-164 ◽  
Author(s):  
Yury V. Shestopalov ◽  
Ekaterina A. Kuzmina
Keyword(s):  
Cross Section ◽  
Dielectric Waveguide ◽  
Circular Cross Section ◽  
Rigorous Proof ◽  
Complex Waves

scholarly journals Symmetric surface waves along a metamaterial dielectric waveguide and a perfectly conducting cylinder covered by a metamaterial layer

2018 ◽  
Vol 7 (2) ◽  
pp. 91-98
Author(s):  
Y. Shestopalov ◽  
E. Kuzmina
Keyword(s):  
Numerical Solution ◽  
Cross Section ◽  
Dielectric Waveguide ◽  
Circular Cross Section ◽  
Analytical Investigation ◽  
Concentric Layer ◽  
Conducting Cylinder ◽  
Symmetric Complex ◽  
Symmetric Surface ◽  
Complex Waves

Existence of symmetric complex waves in a metamaterial dielectric rod and a perfectly conducting cylinder of circular cross section covered by a concentric layer of metamaterial, a metamaterial Goubau line, is proved. Analytical investigation and numerical solution of dispersion equations reveal several important properties of running waves inherent to open metal-metamaterial waveguides which have not been reported for waveguides filled with standard media.

SAF file: It's really three dimensional file

2018 ◽  
Vol 14 (1) ◽  
pp. 1
Author(s):  
Prof. Dr. Jamal Aziz Mehdi
Keyword(s):  
Cross Section ◽  
Root Canal ◽  
Three Dimensional ◽  
Circular Cross Section ◽  
Circular Motion ◽  
Root Canal Treatment ◽  
Metal Core ◽  
Rotating Blade

The biological objectives of root canal treatment have not changed over the recentdecades, but the methods to attain these goals have been greatly modified. Theintroduction of NiTi rotary files represents a major leap in the development ofendodontic instruments, with a wide variety of sophisticated instruments presentlyavailable (1, 2).Whatever their modification or improvement, all of these instruments have onething in common: they consist of a metal core with some type of rotating blade thatmachines the canal with a circular motion using flutes to carry the dentin chips anddebris coronally. Consequently, all rotary NiTi files will machine the root canal to acylindrical bore with a circular cross-section if the clinician applies them in a strictboring manner

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