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Wyszukujesz frazę "Hughes, D." wg kryterium: Autor


Wyświetlanie 1-3 z 3
Tytuł:
Free Volume, Molecular Mobility and Polymer Structure: Towards the Rational Design of Multi-Functional Materials
Autorzy:
Roussenova, M.
Hughes, D.
Enrione, J.
Diaz-Calderon, P.
Sivaniah, E.
Song, Q.
Ubbink, J.
Beavis, P.
Swain, A.
Alam, M.
Powiązania:
https://bibliotekanauki.pl/articles/1196297.pdf
Data publikacji:
2014-03
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
78.70.Bj
82.35.Pq
66.30.je
82.35.Np
81.05.Qk
Opis:
In this short paper we illustrate the versatility of positron annihilation lifetime spectrometry when used for material characterisation by presenting a selection of recent lifetime studies carried out on novel polymeric materials with a wide range of potential industrial applications. We highlight the importance of local free volume in governing the macroscopic properties (e.g. permeation properties, mechanical strength) of these materials and how lifetime measurements can be used in conjunction with a number of complementary techniques in order to establish composition-structure-property relationships for these systems.
Źródło:
Acta Physica Polonica A; 2014, 125, 3; 801-805
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Theoretical and practical aspects of military wireless sensor networks
Autorzy:
Winkler, M.
Tuchs, K. D.
Hughes, K.
Barclay, G.
Powiązania:
https://bibliotekanauki.pl/articles/308220.pdf
Data publikacji:
2008
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
wireless sensor networks
military sensor applications
joint intelligence surveillance reconnaissance (JISR)
military sensors
energy efficient routing
WSN generations
Opis:
Wireless sensor networks can be used by the military for a number of purposes such as monitoring militant activity in remote areas and force protection. Being equipped with appropriate sensors these networks can enable detection of enemy movement, identification of enemy force and analysis of their movement and progress. The focus of this article is on the military requirements for flexible wireless sensor networks. Based on the main networking characteristics and military use-cases, insight into specific military requirements is given in order to facilitate the reader's understanding of the operation of these networks in the near to medium term (within the next three to eight years). The article structures the evolution of military sensor networking devices by identifying three generations of sensors along with their capabilities. Existing developer solutions are presented and an overview of some existing tailored products for the military environment is given. The article concludes with an analysis of outstanding engineering and scientific challenges in order to achieve fully flexible, security proved, ad hoc, self-organizing and scalable military sensor networks.
Źródło:
Journal of Telecommunications and Information Technology; 2008, 2; 37-45
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modification of Polymer Substrates with Extreme Ultraviolet - Potential Application in Cancer Cell Identification
Autorzy:
Ahad, I.
Pabijan, J.
Pogoda, K.
Hughes, C.
Bartnik, A.
Fiedorowicz, H.
Lekka, M.
Brabazon, D.
Powiązania:
https://bibliotekanauki.pl/articles/1030640.pdf
Data publikacji:
2018-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.05.Lg
81.40.Wx
81.16.Rf
81.65.-b
Opis:
During the last two decades, the development of laboratory scale extreme ultraviolet sources has been intensified due to growing interest in use of extreme ultraviolet photons for various applications in science and technology. In this study, we present a potential application of extreme ultraviolet sources for surface modification of polymers to be used as substrates for cancer cell identification. The surface modification of polytetrafluoroethylene (PTFE) polymer samples was performed by a lab scale compact laser-plasma extreme ultraviolet source based on a double-stream gas-puff target. The gas target was irradiated with a 3 ns/0.8 J Nd:YAG laser pulse at 10 Hz. Reference HCV29 non-malignant transitional epithelium and T24 bladder cancer cells adhesion and proliferation studies on pure and extreme ultraviolet sources modified PTFE surfaces were performed. The extreme ultraviolet modified surfaces demonstrated regular increase in cancer cell proliferation comparing to pristine sample. Initial results indicate that extreme ultraviolet treated substrates can facilitate the identification of cancer cells.
Źródło:
Acta Physica Polonica A; 2018, 133, 2; 283-285
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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