scholarly journals Construction of the spacelike constant angle surface family in Minkowski 3-space

2020 ◽  
Vol 5 (6) ◽  
pp. 6341-6354
Author(s):  
Cai-Yun Li ◽  
◽  
Chun-Gang Zhu ◽  
Keyword(s):  
Constant Angle ◽  
Constant Angle Surface

scholarly journals Constant Angle Surfaces in $\mathbb{S}^3(1) \times \mathbb R$

2012 ◽  
Vol 19 (2) ◽  
pp. 289-304 ◽  
Author(s):  
Daguang Chen ◽  
Gangyi Chen ◽  
Hang Chen ◽  
Franki Dillen
Keyword(s):  
Constant Angle ◽  
Constant Angle Surfaces

scholarly journals Constant angle spacelike surface in de Sitter space S₁³

2017 ◽  
Vol 35 (3) ◽  
pp. 79-93
Author(s):  
Tugba Mert ◽  
Baki Karlıga
Keyword(s):  
Vector Field ◽  
De Sitter Space ◽  
Normal Vector ◽  
Spacelike Surface ◽  
De Sitter ◽  
Unit Normal Vector ◽  
Normal Vector Field ◽  
Constant Angle ◽  
Unit Normal Vector Field ◽  
Unit Normal

In this paper; using the angle between unit normal vector field of surfaces and a fixed spacelike axis in R₁⁴, we develop two class of spacelike surface which are called constant timelike angle surfaces with timelike and spacelike axis in de Sitter space S₁³.

scholarly journals ON THE GEOMETRY OF CONSTANT ANGLE SURFACES IN Sol3

2011 ◽  
Vol 65 (2) ◽  
pp. 237-249 ◽  
Author(s):  
Rafael LÓPEZ ◽  
Marian Ioan MUNTEANU
Keyword(s):  
Constant Angle ◽  
Constant Angle Surfaces

Arrangement of morphological subunits in bacterial spinae

1976 ◽  
Vol 22 (5) ◽  
pp. 619-629 ◽  
Author(s):  
K. B. Easterbrook ◽  
J. H. M. Willison ◽  
R. W. Coombs
Keyword(s):  
Image Analysis ◽  
Filament Axis ◽  
Constant Angle ◽  
Inner Surface

The filament, that is helically arranged to form the bacterial spina, is composed of morphological subunits (oligomers) about 5.6 nm in width and 11 nm in length. The oligomers are asymmetrical in that the inner surface is grooved. Image analysis of negative-stained spinae ribbons indicates that the oligomers are paired, possibly beaded structures, the arrangement of which is easily distorted during preparation. In intact spinae, the oligomer orientation may be normal to the filament axis, but in collapsed freeze-etched spinae, the oligomers are inclined at a constant angle of about 72° to the filament axis.

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