Search

Start Over Coverage 271-280

1. A new characterization for the simple group ${\rm PSL}(2,p^2)$ by order and some character degrees

Creator:
Khosravi, Behrooz, Khosravi, Behnam, Khosravi, Bahman, and Momen, Zahra
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
character degree, order, and projective special linear group
Language:
English
Description:
Let $G$ be a finite group and $p$ a prime number. We prove that if $G$ is a finite group of order $|{\rm PSL}(2,p^2)|$ such that $G$ has an irreducible character of degree $p^2$ and we know that $G$ has no irreducible character $\theta $ such that $2p\mid \theta (1)$, then $G$ is isomorphic to ${\rm PSL}(2,p^2)$. As a consequence of our result we prove that ${\rm PSL}(2,p^2)$ is uniquely determined by the structure of its complex group algebra.
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

2. The influence of modulated slotted synthetic jet on the bypass of hump

Creator:
Pick, Petr, Andrle, Miroslav, Skála, Vladislav, and Matějka, Milan
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
synthetic jet, Kiel probe, CTA probe, loss coefficient, phase shift, and modulation
Language:
English
Description:
The article deals with the influence of phase modulated synthetic jet on the aerodynamics of the hump in a closed test section of the Eiffel-type wind tunnel. Three experimental methods of measurement techniques of this phenomenon, were used: the pressure profile using the Kiel total pressure probe, the velocity profile using the CTA probe and the visualization of the flow field using the hot film and the thermo camera. The experimental results with and without the influence of the synthetic jet were compared, as well the impact of the phase shift of the neighbouring synthetic jets. As a reference case, the flow around the hump without the influence of the syntheic jet was selected. The results of the measurement are presented in figures and compared. and Obsahuje seznam literatury
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public