Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Krzysztof P. Wojciechowski"'
Publikováno v:
Symmetry, Vol 13, Iss 7, p 1127 (2021)
Two-dimensional (2D) crystalline structures based on a honeycomb geometry are analyzed by computer simulations using the Monte Carlo method in the isobaric-isothermal ensemble. The considered crystals are formed by hard discs (HD) of two different di
Externí odkaz:
https://doaj.org/article/bec95715193d42e68f8ed9d666515ab5
Publikováno v:
Symmetry, Vol 13, Iss 6, p 977 (2021)
Boron arsenate, BAsO4, is crystalline material (I4¯ group) that was recently shown to be auxetic in its (001) plane for loading in any direction in this plane, and, which exhibits negative linear compressibility at elevated pressured in its [001] di
Externí odkaz:
https://doaj.org/article/3cd7a75247d74587ada97b48f5f05f61
Publikováno v:
TASK Quarterly, Vol 20, Iss 3 (2016)
In this note a sketch of the idea of applying auxetics to separation of 3He from a mixture of 4He and 3He by using auxetic entropy filters is presented.
Externí odkaz:
https://doaj.org/article/6e4eaf7bf6d04c19bd840165d6283327
Autor:
Attila R. Imre, Krzysztof W. Wojciechowski, Gábor Györke, Axel Groniewsky, Jakub. W. Narojczyk
Publikováno v:
Entropy, Vol 20, Iss 5, p 338 (2018)
Unlike with gases, for liquids and solids the pressure of a system can be not only positive, but also negative, or even zero. Upon isobaric heat exchange (heating or cooling) at p = 0, the volume work (p-V) should be zero, assuming the general validi
Externí odkaz:
https://doaj.org/article/434d33d38ea14fdea3565e4d7a590339
Autor:
Paweł Wyżga, Igor Veremchuk, Ulrich Burkhardt, Paul Simon, Yuri Grin, Krzysztof T. Wojciechowski
Publikováno v:
Applied Sciences, Vol 8, Iss 1, p 52 (2018)
Introduction of nonstoichiometry to AgSbTe2-based materials is considered to be an effective way to tune thermoelectric properties similarly to extrinsic doping. To prove this postulate, a systematic physicochemical study of the Ag1−xSb1+xTe2+x all
Externí odkaz:
https://doaj.org/article/ac7668923d4a478e95e378222adc6591
Publikováno v:
TASK Quarterly, Vol 5, Iss 3 (2001)
Structural and elastic properties of the densest known solid phase of two-dimensional (2D) system of hard cyclic pentamers (each pentamer is composed of five discs which centres are placed at vertices of a perfect pentagon of sides equal to the disc
Externí odkaz:
https://doaj.org/article/7198eef747134c3d8f2a9acda00bc954
Publikováno v:
TASK Quarterly, Vol 5, Iss 1 (2001)
Elastic properties of non-uniform, two-component systems are studied in frames of a model of percolation on a simple cubic lattice. It is shown that as the ratio of the bulk moduli of the components tends to zero, ϰ = Ks/Kh → 0 (where s, h denote
Externí odkaz:
https://doaj.org/article/063761105d004ca4a1dbd463e7ac65d6
Publikováno v:
Journal of Geometry and Physics. 55:241-266
We discuss the adiabatic decomposition formula of the ζ -determinant of a Laplace type operator on a closed manifold. We also analyze the adiabatic behavior of the ζ -determinant of a Dirichlet to Neumann operator. This analysis makes it possible t
Publikováno v:
Spectral Geometry of Manifolds with Boundary and Decomposition of Manifolds. :109-121
Publikováno v:
Communications in Partial Differential Equations. 27:1407-1435
We discuss the decomposition of the ζ-determinant of the square of the Dirac operator into the contributions coming from the different parts of the manifold. The result was announced in the Note Re...