Zobrazeno 1 - 10
of 654
pro vyhledávání: '"SIKORA, Marek"'
Rule-based models offer a human-understandable representation, i.e. they are interpretable. For this reason, they are used to explain the decisions of non-interpretable complex models, referred to as black box models. The generation of such explanati
Externí odkaz:
http://arxiv.org/abs/2407.14543
Autor:
You, Bei, Cao, Xinwu, Yan, Zhen, Hameury, Jean-Marie, Czerny, Bozena, Wu, Yue, Xia, Tianyu, Sikora, Marek, Zhang, Shuang-Nan, Du, Pu, Zycki, Piotr T.
Publikováno v:
Science 381, 961-964 (2023)
Accretion of material onto a black hole drags any magnetic fields present inwards, increasing their strength. Theory predicts that sufficiently strong magnetic fields can halt the accretion flow, producing a magnetically arrested disk (MAD). We analy
Externí odkaz:
http://arxiv.org/abs/2309.00200
Autor:
Sikora, Marek, Zdziarski, Andrzej
We propose a model explaining the origin of transient/episodic jets in black-hole X-ray binaries, in which they are caused by transitions from a collimated, strongly magnetized, jet to a wide, un-collimated, outflow. The change occurs when the accret
Externí odkaz:
http://arxiv.org/abs/2307.02853
We model interaction with the surrounding medium of the main discrete jet ejection in the accreting black-hole binary MAXI J1348--630. The kinetic energy in the ejection of that jet was estimated before to be $>10^{46}$ erg. That energy requires that
Externí odkaz:
http://arxiv.org/abs/2303.01349
Publikováno v:
Folia Oeconomica Stetinensia, Vol 24, Iss 1, Pp 87-104 (2024)
The purpose of the article is to identify the factors that influence commuting by bicycle with a specific focus on Tbilisi and Warsaw. Based on the testing of hypotheses, the authors intended to determine how different factors affect commuting by cyc
Externí odkaz:
https://doaj.org/article/a00236c12362409faf896f1acd0307a7
We propose a simple analytical jet model of magnetic jets, in which radially-averaged profiles of main physical quantities are obtained based on conservation laws and some results of published GRMHD jet simulations. We take into account conversion of
Externí odkaz:
http://arxiv.org/abs/2204.11637
Identifying differences between groups is one of the most important knowledge discovery problems. The procedure, also known as contrast sets mining, is applied in a wide range of areas like medicine, industry, or economics. In the paper we present Ru
Externí odkaz:
http://arxiv.org/abs/2204.00497
Autor:
Zdziarski, Andrzej A., Phuravhathu, Dakalo G., Sikora, Marek, Boettcher, Markus, Chibueze, James O.
We calculated the electron-positron pair production rate at the base of the jet of 3C 120 by collisions of photons from the hot accretion flow using the measurement of its average soft gamma-ray spectrum by Compton Gamma Ray Observatory. We found tha
Externí odkaz:
http://arxiv.org/abs/2202.11174
Autor:
Sikora, Marek
This master’s thesis presents a proposal for the technology of manufacturing sheet metal part, which is a part of a bicycle wall bracket. The component is made of steel sheet ČSN 11 325 with subsequent surface treatment by galvanizing. Due to the
Externí odkaz:
http://www.nusl.cz/ntk/nusl-417095
Autor:
Sikora, Marek
The topic of this diploma thesis is the elaboration of the construction and technology project of the kindergarden in Čelákovice. Diploma thesis contain technical report of construction and technology projet, design mechanical assembley with transp
Externí odkaz:
http://www.nusl.cz/ntk/nusl-409945