Zobrazeno 1 - 10
of 104
pro vyhledávání: '"Krzysztof Murawski"'
Autor:
Krzysztof Murawski, Kinga Majkowycz, Małgorzata Kopytko, Tetiana Manyk, Karol Dąbrowski, Bartłomiej Seredyński, Łukasz Kubiszyn, Piotr Martyniuk
Publikováno v:
Nanomaterials, Vol 14, Iss 17, p 1393 (2024)
The long-wave infrared (LWIR) interband cascade detector with type-II superlattices (T2SLs) and a gallium-free (“Ga-free”) InAs/InAsSb (x = 0.39) absorber was characterized by photoluminescence (PL) and spectral response (SR) methods. Heterostruc
Externí odkaz:
https://doaj.org/article/37cda8e5c3204babb9ef685c6f6b86f9
Autor:
Małgorzata Kopytko, Kinga Majkowycz, Krzysztof Murawski, Jan Sobieski, Waldemar Gawron, Piotr Martyniuk
Publikováno v:
Sensors, Vol 24, Iss 11, p 3566 (2024)
Deep defects in the long-wave infrared (LWIR) HgCdTe heterostructure photodiode were measured via deep-level transient spectroscopy (DLTS) and photoluminescence (PL). The n+-P+-π-N+ photodiode structure was grown by following the metal–organic che
Externí odkaz:
https://doaj.org/article/445d962ced254840a715c4a34411c306
Publikováno v:
Metrology and Measurement Systems, Vol vol. 30, Iss No 1, Pp 183-194 (2023)
The temperature dependence of photoluminescence spectra has been studied for the HgCdTe epilayer. At low temperatures, the signal has plenty of band-tail states and shallow/deep defects which makes it difficult to evaluate the material bandgap. In mo
Externí odkaz:
https://doaj.org/article/2f675d0f16154acb9923b14bf80f4b0f
Autor:
Wojciech Sulej, Krzysztof Murawski
Publikováno v:
Biuletyn Wojskowej Akademii Technicznej, Vol 66, Iss 4, Pp 43-56 (2017)
The paper presents the research results which are a continuation of work on the use of image processing techniques to determine the membrane shape of the artificial ventricle. The studies were focused on developing a technique for measuring the accur
Externí odkaz:
https://doaj.org/article/02551df4aa8e49e4bd702b26df293a8f
Autor:
Łukasz Dziuda, Paulina Baran, Piotr Zieliński, Krzysztof Murawski, Mariusz Dziwosz, Mariusz Krej, Marcin Piotrowski, Roman Stablewski, Andrzej Wojdas, Włodzimierz Strus, Henryk Gasiul, Marcin Kosobudzki, Alicja Bortkiewicz
Publikováno v:
Sensors, Vol 21, Iss 19, p 6449 (2021)
This paper presents a camera-based prototype sensor for detecting fatigue and drowsiness in drivers, which are common causes of road accidents. The evaluation of the detector operation involved eight professional truck drivers, who drove the truck si
Externí odkaz:
https://doaj.org/article/fe8ad156e30f4de688ba1ee0e3ee69e7
Publikováno v:
Annals of computer science and information systems, Vol 8, Pp 817-822 (2016)
Externí odkaz:
https://doaj.org/article/b9a12e92410c40a79f8046569605cb35
Autor:
Tetiana Manyk, Krystian Michalczewski, Krzysztof Murawski, Piotr Martyniuk, Jaroslaw Rutkowski
Publikováno v:
Sensors, Vol 19, Iss 8, p 1907 (2019)
The InAs/InAsSb type-II superlattices (T2SLs) grown on a GaSb buffer layer and GaAs substrates were theoretically investigated. Due to the stability at high operating temperatures, T2SLs could be used for detectors operating in the longwave infrared
Externí odkaz:
https://doaj.org/article/259e90323a204db6946713f200b8c334
Autor:
MARCIN GRUSZECKI, KRZYSZTOF MURAWSKI
Publikováno v:
TASK Quarterly, Vol 13, Iss 1-2 (2009)
Numerical methods for standing fast magnetoacoustic kink waves in an isothermal solar coronal slab with a field aligned flow are considered. Such waves are triggered impulsively by a velocity pulse that is initially launched in an ambient medium. The
Externí odkaz:
https://doaj.org/article/df7d8fb2cf784ace929432981466a60d
Autor:
KRZYSZTOF MURAWSKI
Publikováno v:
TASK Quarterly, Vol 13, Iss 1-2 (2009)
In this paper we review Godunov-type numerical methods for one- and two-component magnetohydrodynamic equations. Solving these equations numerically is a formidable task as a result of the internal complexity of these equations and the requirements o
Externí odkaz:
https://doaj.org/article/dfe9400efa6f468b9f1b7745fb4eb3af
Autor:
RAFAŁ OGRODOWCZYK, KRZYSZTOF MURAWSKI
Publikováno v:
TASK Quarterly, Vol 11, Iss 3 (2007)
We consider impulsive excitation of slow magnetosonic standing waves in a two-dimensional hot solar coronal slab. Results of numerical simulations have revealed that initially launched pulses trigger mainly fundamental slow mode and its first harmoni
Externí odkaz:
https://doaj.org/article/923f4f08777a49a68882791707828fa1