Base Pressures at Supersonic Velocities

1949 ◽  
Vol 16 (3) ◽  
pp. 153-160
Author(s):  
FREEMAN K. HILL ◽  
RALPH A. ALPHER
Keyword(s):  
Supersonic Velocities

scholarly journals Supersonic velocities in noncommutative acoustic black holes

2012 ◽  
Vol 85 (2) ◽  
Author(s):  
M. A. Anacleto ◽  
F. A. Brito ◽  
E. Passos
Keyword(s):  
Black Holes ◽  
Supersonic Velocities ◽  
Acoustic Black Holes

The metal of supersonic velocities

Metallurgist ◽  
1964 ◽  
Vol 8 (10) ◽  
pp. 572-574
Author(s):  
S. Venetskii
Keyword(s):  
Supersonic Velocities

Application of thermal sprayed coatings at supersonic velocities

1989 ◽  
Vol 28 (1) ◽  
pp. 24-26
Author(s):  
V. G. Zil'berberg ◽  
A. I. Stroganov ◽  
N. I. Kirkun ◽  
A. M. Vyal'tsev ◽  
V. Yu. Shestopalov
Keyword(s):  
Supersonic Velocities ◽  
Sprayed Coatings ◽  
Thermal Sprayed Coatings

Ignition process evolution at high supersonic velocities in channel

2009 ◽  
Vol 18 (2) ◽  
pp. 166-172
Author(s):  
M. A. Goldfeld ◽  
A. V. Starov ◽  
K. Yu. Timofeev ◽  
V. A. Vinogradov
Keyword(s):  
Ignition Process ◽  
Supersonic Velocities

Supersonic sauropods? Tail dynamics in the diplodocids

Paleobiology ◽  
1997 ◽  
Vol 23 (4) ◽  
pp. 393-409 ◽  
Author(s):  
Nathan P. Myhrvold ◽  
Philip J. Currie
Keyword(s):  
Diffuse Idiopathic Skeletal Hyperostosis ◽  
Computer Models ◽  
Sexually Dimorphic ◽  
Direct Impact ◽  
Supersonic Velocities ◽  
Caudal Vertebrae ◽  
Tail Structure

Computer models of the tail of Apatosaurus louisae show it could reach supersonic velocities, producing a noise analogous to the “crack” of a bullwhip. Similarity in tail structure suggests this was feasible for other diplodocids, and possibly for unrelated sauropods like Mamenchisaurus and the dicraeosaurids. Lengthening of caudal vertebrae centra between positions 18 and 25 is consistent with adaptation to the stresses generated by such tail motion, as is coossification of vertebrae via diffuse idiopathic skeletal hyperostosis (DISH), which occurs in the same region in about half the specimens. The noise produced may have been used for defense, communication, intraspecific rivalry, or courtship, in which case supersonic “cracking” may have been a sexually dimorphic feature. Comparisons with the club-bearing tails of the sauropods Shunosaurus lii and Omeisaurus tianfuensis show the diplodocid whiplash tail was not well adapted as a direct-impact weapon, bringing the tail-as-weapon hypothesis into doubt.

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