Zobrazeno 1 - 10
of 51
pro vyhledávání: '"David Petras"'
Publikováno v:
The Scientific World Journal, Vol 2013 (2013)
This paper describes the presence service, which is located in the IP multimedia subsystem. This service allows making many applications for different groups of people. The paper describes differences between a network without the service and with th
Externí odkaz:
https://doaj.org/article/4ad0520682994cd29b08a0d6dcfa846d
Autor:
Ivan Baronak, David Petras
Publikováno v:
Contemporary Engineering Sciences. 7:531-542
This paper describes the presence service which is located in the IP multimedia subsystem (IMS). This service allows creation of many applications for different groups of people. This paper describes the number of transmitted messages in the network
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::122104e050412ad5ace27305bee02b68
https://doi.org/10.12988/ces.2014.4440
https://doi.org/10.12988/ces.2014.4440
Publikováno v:
Key Engineering Materials. 543:356-359
The conductance properties of multi-walled carbon nanotube mats and their polystyrene composite were examined to investigate the mechanism of conduction and the specific role of the supporting polymer. By measuring the temperature dependence of the c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::031b7a45b365e8efec0606f21ed84226
https://doi.org/10.4028/www.scientific.net/kem.543.356
https://doi.org/10.4028/www.scientific.net/kem.543.356
Publikováno v:
Journal of Applied Polymer Science. 111:2711-2714
Polyurethane (PU) and PU/multiwalled carbon nanotube (MWCNT) nanocomposite nanofibers, both with diameters of 350 nm, were prepared by an electrospinning process from PU dimethylformamide solutions. The appearance of nanowebs in PU/MWCNT nanofiber st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9f3a553dadcb3d383f5f1d8df790bcc
https://doi.org/10.1002/app.29238
https://doi.org/10.1002/app.29238
Publikováno v:
IEEE Sensors Journal
A sensor was made of a polymer composite composed of electrically- conductive carbon nanotubes embedded in elastic polyurethane. The composite was prepared using a polyurethane filter membrane, enmeshing it, and melding together with carbon nanotubes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eeb55403760095a0f91603cd9615c02b
http://publikace.k.utb.cz/handle/10563/1003480
http://publikace.k.utb.cz/handle/10563/1003480
Autor:
David Petras, Petr Slobodian, Vladimír Pavlínek, Petr Sáha, Dušan Kimmer, Martin Zatloukal
Publikováno v:
AIP Conference Proceedings.
Polyvinyl acetate (PVAc) nanofibers were prepared by technology of electrospinning with help of multi‐jets electrospinning machine from acetic acid/water solvent system. The stability of the process was tested in a broad concentration region from 5
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::950d2fd9340ab9d189525fd6c91748ef
https://doi.org/10.1063/1.3604491
https://doi.org/10.1063/1.3604491
Autor:
Dusan Kimmer, Ivo Vincent, Jan Fenyk, David Petras, Martin Zatloukal, Wannes Sambaer, Vladimir Zdimal
Publikováno v:
AIP Conference Proceedings.
Selected procedures permitting to prepare homogeneous nanofibre structures of the desired morphology by employing a suitable combination of variables during the electrospinning process are presented. A comparison (at the same pressure drop) was made
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab407d2a5887eefa7f2842048513f7b1
https://doi.org/10.1063/1.3604490
https://doi.org/10.1063/1.3604490
Publikováno v:
AIP Conference Proceedings.
The electrospinning process efficiency of different PUs has been investigated. Specific attention has been paid to understand the role of PU soft segments and synthesis type on the stability of the PU solution and electrospinning process as well as o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02eb334a67bc519223fdf70cef88dc62
https://doi.org/10.1063/1.3203281
https://doi.org/10.1063/1.3203281
Publikováno v:
Perception. Dec2021, Vol. 50 Issue 12, p1066-1069. 4p.
Publikováno v:
Financial Services Canada; 2023, Issue 23/24, p683-914, 231p