Zobrazeno 1 - 10
of 233
pro vyhledávání: '"Jerzy Kowalski"'
Autor:
Van Giao Nguyen, Brijesh Dager, Ajay Chhillar, Prabhakar Sharma, Sameh M. Osman, Duc Trong Nguyen Le, Jerzy Kowalski, Thanh Hai Truong, Prem Shanker Yadav, Dao Nam Cao, Viet Dung Tran
Publikováno v:
Case Studies in Thermal Engineering, Vol 59, Iss , Pp 104488- (2024)
The study examined the dual-fuel engine performance employing acetylene gas as primary fuel and diesel as pilot fuel. The engine's operational parameters were adjusted using the Box-Behnken design, and the results were recorded. The best operating se
Externí odkaz:
https://doaj.org/article/415e709e4bd24e10b379fb96e4cecbd2
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 2, Pp 1-32 (2023)
Abstract We consider two BF formulations of the theory of gravity with a negative cosmological constant, of Plebanski and of MacDowell-Mansouri. Both give the standard Einstein equations in the bulk but differ in expressions of edge charges. We compu
Externí odkaz:
https://doaj.org/article/02b013ec6e114c36b8f9bcf95c845c46
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 11, Pp 1-38 (2021)
Abstract In this paper we study quantum group deformations of the infinite dimensional symmetry algebra of asymptotically AdS spacetimes in three dimensions. Building on previous results in the finite dimensional subalgebras we classify all possible
Externí odkaz:
https://doaj.org/article/476b47e777e043f58116ce50caaa4b7b
Autor:
Michele Arzano, Jerzy Kowalski-Glikman
Publikováno v:
Physics Letters B, Vol 835, Iss , Pp 137535- (2022)
It is well known in the literature that the momentum space associated to the κ-Poincaré algebra is described by the Lie group AN(3). In this letter we show that the full κ-Poincaré Hopf algebra structure can be obtained from rather straightforwar
Externí odkaz:
https://doaj.org/article/73c561bc71194618953fe9b4e6b029c4
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 7, Pp 1-24 (2021)
Abstract Following recent works on corner charges we investigate the boundary structure in the case of the theory of gravity formulated as a constrained BF theory. This allows us not only to introduce the cosmological constant, but also explore the i
Externí odkaz:
https://doaj.org/article/6a66fe8579084338b874f3399f14360e
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 2, Pp 1-31 (2021)
Abstract BMS symmetry is a symmetry of asymptotically flat spacetimes in vicinity of the null boundary of spacetime and it is expected to play a fundamental role in physics. It is interesting therefore to investigate the structures and properties of
Externí odkaz:
https://doaj.org/article/18263c23087549429e008e3c37d0b6b5
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 9, Pp 1-42 (2020)
Abstract Following the recently obtained complete classification of quantum-deformed o $$ \mathfrak{o} $$ (4), o $$ \mathfrak{o} $$ (1, 3) and o $$ \mathfrak{o} $$ (2) algebras, characterized by classical r-matrices, we study their inhomogeneous D =
Externí odkaz:
https://doaj.org/article/85b6306402a144fba986fe15ce43e7dc
Publikováno v:
Physics Letters B, Vol 795, Iss , Pp 516-520 (2019)
This paper explores the possibility of using Maxwell algebra and its generalizations called resonant algebras for the unified description of topological insulators. We offer the natural action construction, which includes the relativistic Wen-Zee and
Externí odkaz:
https://doaj.org/article/c30081a9596f4f75b1ed2b6f3b07759b
Publikováno v:
Physics Letters B, Vol 794, Iss , Pp 41-44 (2019)
We show that deformed relativistic kinematics, expected to emerge in a flat-spacetime limit of quantum gravity, predicts different lifetimes for particles and their antiparticles. This phenomenon is a consequence of Planck-scale modifications of the
Externí odkaz:
https://doaj.org/article/a3422be3d01549a6adf980eca78daef1
Autor:
Jerzy KOWALSKI
Publikováno v:
Combustion Engines, Vol 177, Iss 2, Pp 40-45 (2019)
The paper presents a theoretical analysis of the impact of injection timing on the parameters of the combustion process and the com-position of exhaust gas from a 4-stroke engine designed to shipbuilding. The analysis was carried out based on a three
Externí odkaz:
https://doaj.org/article/1096ec5b08514f928683fff7badd7399