Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Paweł, Kowalik"'
Publikováno v:
Advances in Sciences and Technology, Vol 11, Iss 1, Pp 246-252 (2017)
In this paper we examined efficiency of one of the method for numerical inversion of the Laplace transform: the Gaver-Stehfest method to find solution an one-dimensional gas flow model with axial dispersion. Algorithm was used to determine values of
Externí odkaz:
https://doaj.org/article/74d525756a394eceae063ecc84029613
Publikováno v:
Materials, Vol 14, Iss 8, p 2082 (2021)
The effect of La content and its incorporation route on physicochemical properties of ZnO/Zn(Al,La)2O4 or La2O3–ZnO/ZnAl2O4 mixed oxides with a spinel structure obtained from ZnAlLa Layered double hydroxides (LDHs) or ex-ZnAl LDH materials was inve
Externí odkaz:
https://doaj.org/article/7a248bcc51ce4f549eab4dc10e5d9285
Publikováno v:
Catalysts, Vol 10, Iss 9, p 1094 (2020)
A set of ex-ZnAl-LDHs catalysts with a molar ratio of Zn/Al in the range of 0.3–1.0 was prepared using co-precipitation and thermal treatment. The samples were characterized using various methods, including X-ray fluorescence spectroscopy (XRF), X-
Externí odkaz:
https://doaj.org/article/7b5ea95feb7a415caa549e8ac2a4fde2
Autor:
Wioletta Raróg-Pilecka, Hubert Ronduda, Paweł Kowalik, Bogusław Mierzwa, Magdalena Zybert, Katarzyna Antoniak-Jurak, Wojciech Patkowski, Wiesław Próchniak
Publikováno v:
European Journal of Inorganic Chemistry. 2021:1518-1529
Autor:
Marcin Konkol, Robert Bicki, Janusz Ryczkowski, Katarzyna Antoniak-Jurak, Kamila Michalska, Monika Panczyk, Paweł Kowalik, Ewelina Franczyk, Tadeusz Borowiecki, Grzegorz Słowik
Publikováno v:
International Journal of Hydrogen Energy. 46:11664-11676
Ni/La–Al2O3 and Ni/Ce–Al2O3 catalysts with a small amount of promoters intended for prereforming of LNG were characterized by XRF, N2 adsorption-desorption, XRD, H2 chemisorption, HRTEM and XPS. The catalytic activity was evaluated in methane ste
Publikováno v:
Chemical Engineering Research and Design. 164:293-298
A new empirical kinetics of novel catalyst for high temperature water–gas shift (HT-WGS) at the pressure of 2.5 MPa was developed in the study. Using gradientless reactor a set of kinetics data for catalyst in form of 5 × 5 mm tablet operating at
Autor:
Katarzyna Antoniak-Jurak, Anna Mrozek, Paweł Kowalik, Robert Bicki, Kamila Michalska, Wiesław Próchniak
Publikováno v:
European Journal of Inorganic Chemistry. 2020:3474-3480
Publikováno v:
WUT Journal of Transportation Engineering. 129:27-48
Precast concrete sleepers are commonly used in the construction of railways. They have many advantages and features that have made them a permanent element of the railway infrastructure. However, wooden sleepers are still used; they have many advanta
Autor:
Paweł Kowalik, Mariusz Fabijański
Publikováno v:
WUT Journal of Transportation Engineering. 128:81-88
The purpose of this study is to present the requirements, methodology, and results of research on the impact of biodegradable oil on plastic components used in the construction of a railway turnout. Briefly discussed are what railroad turnouts are, h
Autor:
Wiesław Próchniak, Robert Bicki, Kamila Michalska, Katarzyna Antoniak-Jurak, Paweł Wiercioch, Paweł Kowalik
Publikováno v:
International Journal of Hydrogen Energy. 44:27390-27400
The effect of Cu/Zn ratio of ex-LDH oxide-based catalysts for medium–temperature water–gas shift reaction (MT–WGS) was investigated. A series of CuZnAl–LDH precursors with different Cu/Zn molar ratio were synthesized by co-precipitation and o