Flow of a viscous Newtonian medium in the cavity of a hyperbolic cylinder and a single-cavity hyperboloid of revolution

1975 ◽  
Vol 29 (4) ◽  
pp. 1281-1286 ◽  
Author(s):  
B. B. Boiko ◽  
N. I. Insarova
2021 ◽  
Vol 33 (2) ◽  
pp. 105-108
Author(s):  
Farhad Akhoundi ◽  
N. Peyghambarian

2014 ◽  
Vol 2014 ◽  
pp. 1-5
Author(s):  
Ziqiang Xu ◽  
Gen Zhang ◽  
Hong Xia ◽  
Meijuan Xu

Hexagonal dual-mode cavity and its application to substrate integrated waveguide (SIW) filter are presented. The hexagonal SIW resonator which can combine flexibility of rectangular cavity and performance of circular cavity is convenient for dual-mode bandpass filters design. By introducing coupling between source and load, the filter not only has good selectivity due to two controllable transmission zeros, but also has a small size by the virtue of its single-cavity structure. A demonstration filter with a center frequency of 10 GHz and a 3 dB fractional bandwidth of 4% is designed and fabricated to validate the proposed structure. Measured results are in good agreement with simulated ones.


1997 ◽  
Vol 44 (11-12) ◽  
pp. 2427-2439 ◽  
Author(s):  
K. Jacobs ◽  
P. L. Knight ◽  
V. Vedral

2012 ◽  
Vol 20 (1) ◽  
pp. 387-406
Author(s):  
Junfeng Chen ◽  
Shichang Shu

Abstract We study some Weingarten spacelike hypersurfaces in a de Sitter space S1n+1 (1). If the Weingarten spacelike hypersurfaces have two distinct principal curvatures, we obtain two classification theorems which give some characterization of the Riemannian product Hk(1−coth2 ϱ)× Sn−k(1 − tanh2 ϱ), 1 < k < n − 1 in S1n+1(1), the hyperbolic cylinder H1(1 − coth2 ϱ) × Sn-1(1 − tanh2 ϱ) or spherical cylinder Hn−1(1 − coth2 ϱ) × S1(1 − tanh2 ϱ) in S1n+1 (1)


Author(s):  
Jakob Fellinger ◽  
Georg Winkler ◽  
Aline S. Mayer ◽  
Valentina Shumakova ◽  
Lukas W. Perner ◽  
...  

2011 ◽  
Vol 6 (1) ◽  
pp. 44-49
Author(s):  
Yuriy D. Chernousov ◽  
Alexey E. Levichev ◽  
Vyacheslav M. Pavlov ◽  
Georgiy K. Shamuilov

This paper presents description of single diaphragm in the rectangular waveguide in the plane of the geometric diaphragm location. Relations to define diaphragm characteristics are obtained and compared with measured data. Such diaphragm presentation allows us relatively easy to describe bandpass characteristics of single cavity or system of several connected cavities by scattered wave method


2021 ◽  
Author(s):  
Yanxian Wei ◽  
hailong zhou ◽  
Dongmei Huang ◽  
Feng Li ◽  
Jianji Dong ◽  
...  

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