Autor: Guzman, M. A. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Separation of cobalt from nickel using novel ultrasound-prepared supported liquid membranes containing Cyanex 272 as carrier
Autorzy:: Leon, G.
Martinez, G.
Leon, L.
Guzman, M. A.
Powiązania:: https://bibliotekanauki.pl/articles/109879.pdf
Data publikacji:: 2016
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: cobalt
nickel
separation
supported liquid membranes
ultrasound
facilitated counter-transport
Cyanex 272
Opis:: The demand for cobalt has increased significantly in recent years due to its use in a wide variety of products and processes. Cobalt and nickel often accompany each other in nature and close physicochemical properties of both metals make their separation a complicated practical problem. Organophosphorous extractants have been widely used to separate cobalt from nickel. This paper presents the preliminary results obtained for separation of cobalt from nickel using Cyanex 272 containing supported liquid membranes prepared by a novel ultrasound-assisted method. The results show that this novel supported liquid membrane preparation method leads to higher separation factors than those described in the literature under similar separation conditions.
Źródło:: Physicochemical Problems of Mineral Processing; 2016, 52, 1; 77-86
1643-1049
2084-4735
Pojawia się w:: Physicochemical Problems of Mineral Processing
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Optical Soliton Perturbation in Nonlinear Directional Couplers
Autorzy:: Vega-Guzman, J.
Babatin, M.
Biswas, A.
Powiązania:: https://bibliotekanauki.pl/articles/1030598.pdf
Data publikacji:: 2018-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: solitons
couplers
metamaterials
Opis:: This paper secures soliton solutions to optical couplers in presence of Hamiltonian perturbation terms by the aid of undetermined coefficients. Both twin core couplers and multiple core couplers are studied. Bright, dark and singular soliton solutions are obtained for the model. The existence criteria for the solitons are also presented. The study is focused to the Kerr and power laws of nonlinearity.
Źródło:: Acta Physica Polonica A; 2018, 133, 1; 167-178
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Pilot study of the influence of thermoplastic starch based polymer packaging material on the growth of diatom population in sea water environment
Autorzy:: Guzman, A.M.
Janik, H.Z.
Mastalerz, M.
Kosakowska, A.M.
Powiązania:: https://bibliotekanauki.pl/articles/779256.pdf
Data publikacji:: 2011
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:: skrobia termoplastyczna
opakowanie
biodegradacja
okrzemki
woda morska
thermoplastic starch
packaging
biodegradation
diatom
seawater environment
Opis:: Novel polymeric packaging materials susceptible to environmentally friendly decomposition appeared on the global market. The paper is devoted to an investigation of the impact of degradable polymer packaging on marine life. The chosen polymer was a commercial packaging based on thermoplastic starch (TPS over 85%). The microorganism chosen was Phaeodactylum tricornutum diatom (identified in many aquatic reservoirs, with a tendency to flow with seawater plankton in places of great saline oscillation). The packaging material was incubated both in natural seawater and in the presence of diatom population. The chlorophyll a content was determined as the criterion of diatom growth in the presence of tested polymers. The polymer surface and the colour changes in the diatom culture were recorded photographically. The presence of polymeric samples significantly changed the kinetic of diatom growth in seawater during incubation affecting its biological balance. During the experiment in seawater, diatom adhered to polymer surfaces and the polymer stimulated their growth.
Źródło:: Polish Journal of Chemical Technology; 2011, 13, 2; 57-61
1509-8117
1899-4741
Pojawia się w:: Polish Journal of Chemical Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Controlling Autoreclosing on Overhead Lines with Underground Cable Sections Using Traveling-Wave Fault Location Based on Measurements from Line Terminals Only
Autorzy:: Kasztenny, B.
Guzmán, A.
Mynam, M. V.
Joshi, T.
Powiązania:: https://bibliotekanauki.pl/articles/410575.pdf
Data publikacji:: 2018
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: traveling waves
fault locating
cable lines
autoreclosing
Opis:: The paper explains principles of fault locating based on traveling waves measured only at line terminals for hybrid lines comprising overhead and cable sections. The paper introduces an adaptive autoreclosing control logic to allow or cancel reclosing based on the location of the fault. The paper includes examples that explain and illustrate these principles.
Źródło:: Present Problems of Power System Control; 2018, 9; 19-33
2084-2201
Pojawia się w:: Present Problems of Power System Control
Dostawca treści:: Biblioteka Nauki

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