Results 21 to 30 of about 358,634 (284)

A New Extended Cosine—G Distributions for Lifetime Studies

Mathematics, 2021
In this article, we introduce a new extended cosine family of distributions. Some important mathematical and statistical properties are studied, including asymptotic results, a quantile function, series representation of the cumulative distribution and ...
Mustapha Muhammad, Rashad A. R. Bantan, Lixia Liu, Christophe Chesneau, Muhammad H. Tahir, Farrukh Jamal, Mohammed Elgarhy   +6 more
doaj   +1 more source

On the suppression of the sidelobes of the supercurrent in small Josephson tunnel junctions [PDF]

, 1991
The critical currents of Nb/Al, Al-oxide, Al/Nb tunnel junctions of various shapes have been measured as a function of the applied magnetic field. For the square junction and for some special shapes like the diamond, ¿1 + cosine¿ and quartic junctions ...
Flokstra, J., Gijsbertsen, J.G., Houwman, E.P., Rogalla, H.   +3 more
core   +2 more sources

ON COSINE FAMILIES CLOSE TO SCALAR COSINE FAMILIES [PDF]

Journal of the Australian Mathematical Society, 2015
We prove that if two normed-algebra-valued cosine families indexed by a single Abelian group, of which one is bounded and comprised solely of scalar elements of the underlying algebra, differ in norm by less than$1$uniformly in the parametrising index, then these families coincide.
openaire   +3 more sources

Characterization of silicon pore optics for the NewAthena X-ray observatory in the PTB laboratory at BESSY II

Journal of Synchrotron Radiation
The New Advanced Telescope for High ENergy Astrophysics (NewAthena) will be the largest space-based X-ray observatory ever built. It will have an effective area above 1.1 m2 at 1 keV, which corresponds to a polished mirror surface of about 300 m2 due to ...
M. Krumrey, D. Skroblin, L. Cibik, M. Collon, G. Vacanti, N. Barrière, E. Hauser, M. Bavdaz   +7 more
doaj   +1 more source

Dynamical Analysis of Two-Dimensional Memristor Cosine Map

Frontiers in Physics, 2022
Research on discrete memristor models applied to discrete maps deserves more in-depth discussion. In this paper, a continuous memristor is introduced and the discrete memristor model is obtained by the forward Eulerian difference algorithmic ...
Xintong Han, Xiuguo Bi, Bo Sun, Lujie Ren, Li Xiong   +4 more
doaj   +1 more source

Discrete transforms and orthogonal polynomials of (anti)symmetric multivariate cosine functions

, 2014
The discrete cosine transforms of types V--VIII are generalized to the antisymmetric and symmetric multivariate discrete cosine transforms. Four families of discretely and continuously orthogonal Chebyshev-like polynomials corresponding to the ...
Hrivnák, Jiří, Motlochová, Lenka
core   +1 more source

Cosine and Sine Operators Related with Orthogonal Polynomial Sets on the Intervall [-1,1]

, 2005
The quantization of phase is still an open problem. In the approach of Susskind and Glogower so called cosine and sine operators play a fundamental role.
Abramowitz M, Chihara T S, Diethard H Schiller, Dirac P A M, Lerner E C, Lerner E C, Nevai P G, Peřinová V, Schleich W P, Susskind L, Szegö G, Tanaś R, Thomas Appl   +12 more
core   +1 more source

Diffraction characteristics of optical elements designed as phase layers with cosine-profiled periodicity in azimuthal direction

, 2011
The article concerns an investigation of the Fresnel diffraction characteristics of two types of phase optical elements, under Gaussian laser beam illumination. Both elements provide an azimuthal periodicity of the phase retardation.
Beijersbergen, Davis, Davis, Dholakia, Durnin, Durnin, Dyson, Gori, Herman, Holzner, Janicijevic, Khonina, Khonina, Kopitkovas, Kotlyar, Kotlyar, Ljiljana Janicijevic, McGloin, McLeod, Ojeda-Castañeda, Phillips, Suzana Topuzoski, Topuzoski, Turunen   +23 more
core   +1 more source

Measuring probe position recorder [PDF]

, 1974
A device which enables a person to record the location of measurements made by a hand held nonconducting probe is described. The hand probe is coupled to a linear potentiometer and a sine-cosine potentiometer by means that varies the output of the linear
Flagge, B.
core   +1 more source

The group reduction for bounded cosine functions on UMD spaces

, 2007
It is shown that if A generates a bounded cosine operator function on a UMD space X, then i(-A)^{1/2} generates a bounded C_0-group.
Haase, Markus
core   +1 more source