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Wyszukujesz frazę "Leon, M." wg kryterium: Autor

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    Wyświetlanie 1-15 z 15
    Tytuł:
    Engineering of Magnetic Properties of Magnetic Microwires
    Autorzy:
    Zhukov, A.
    Ipatov, M.
    Blanco, J.
    Corte-León, P.
    Olivera, J.
    Gonzalez, J.
    Zhukova, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/1029739.pdf
    Data publikacji:
    2018-03
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    75.60.Ej
    75.60.Jk
    Opis:
    We present an overview of the factors affecting soft magnetic properties, fast domain wall propagation and giant magnetoimpedance (GMI) effect in thin amorphous wires. The magnetoelastic anisotropy is one of the most important parameters that determine the magnetic properties of glass-coated microwires and therefore annealing can be very effective for manipulation the magnetic properties of amorphous ferromagnetic glass-coated microwires. Increasing of DW velocity in Fe-rich and Fe-Ni based (low Ni content) microwires is achieved after annealing. After heat treatment of Co-rich microwires we can observe transformation of inclined hysteresis loops to rectangular and coexistence of fast magnetization switching and GMI effect in the same sample. On the other hand stress annealing of Fe- and Co-rich microwires allows achievement of considerable magnetic softening and GMI effect enhancement.
    Źródło:
    Acta Physica Polonica A; 2018, 133, 3; 321-328
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Fungal diversity and Aspergillus in hospital environments
    Autorzy:
    Martinez-Herrera, E.O.
    Frias-De-Leon, M.G.
    Duarte-Escalante, E.
    Calderon-Ezquerro, M.del C.
    Jimenez-Martinez, M.del C.
    Acosta-Altamirano, G.
    Rivera-Becerril, F.
    Toriello, C.
    Reyes-Montes, M.del R.
    Powiązania:
    https://bibliotekanauki.pl/articles/49519.pdf
    Data publikacji:
    2016
    Wydawca:
    Instytut Medycyny Wsi
    Źródło:
    Annals of Agricultural and Environmental Medicine; 2016, 23, 2
    1232-1966
    Pojawia się w:
    Annals of Agricultural and Environmental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Adapting differential evolution algorithms for continuous optimization via greedy adjustment of control parameters
    Autorzy:
    Leon, M.
    Xiong, N.
    Powiązania:
    https://bibliotekanauki.pl/articles/91824.pdf
    Data publikacji:
    2016
    Wydawca:
    Społeczna Akademia Nauk w Łodzi. Polskie Towarzystwo Sieci Neuronowych
    Tematy:
    differential evolution
    optimization
    parameter adaptation
    Opis:
    Differential evolution (DE) presents a class of evolutionary and meta-heuristic techniques that have been applied successfully to solve many real-world problems. However, the performance of DE is significantly influenced by its control parameters such as scaling factor and crossover probability. This paper proposes a new adaptive DE algorithm by greedy adjustment of the control parameters during the running of DE. The basic idea is to perform greedy search for better parameter assignments in successive learning periods in the whole evolutionary process. Within each learning period, the current parameter assignment and its neighboring assignments are tested (used) in a number of times to acquire a reliable assessment of their suitability in the stochastic environment with DE operations. Subsequently the current assignment is updated with the best candidate identified from the neighborhood and the search then moves on to the next learning period. This greedy parameter adjustment method has been incorporated into basic DE, leading to a new DE algorithm termed as Greedy Adaptive Differential Evolution (GADE). GADE has been tested on 25 benchmark functions in comparison with five other DE variants. The results of evaluation demonstrate that GADE is strongly competitive: it obtained the best rank among the counterparts in terms of the summation of relative errors across the benchmark functions with a high dimensionality.
    Źródło:
    Journal of Artificial Intelligence and Soft Computing Research; 2016, 6, 2; 103-118
    2083-2567
    2449-6499
    Pojawia się w:
    Journal of Artificial Intelligence and Soft Computing Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    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
    Artykuł
    Tytuł:
    Mirnyj dogovor meždu Rossijej i Ukrainoj, s odnoj storony, i Polšej -- s drugoj] : [18 III 1921]
    Autorzy:
    Joffe, Adolf A.
    Hanecki, Jakub S.
    Kviring, Emmanuel J.
    Kociubinski, Jurij M.
    Obolenski, Leonid L.
    Dąbski, Jan.
    Kauzik, Stanisław.
    Lechowicz, Edward.
    Strasburger, Henryk.
    Wasilewski, Leon.
    Powiązania:
    Dokumenty vnešnej politiki SSSR. T. 3, 1 ijula 1920 - 18 marta 1921 g Moskva, 1959 S. 618-658
    Współwytwórcy:
    Belov, G. A. Redakcja
    Data publikacji:
    1959
    Tematy:
    Traktat ryski (1921)
    Opis:
    Także mapa ustalonych granic.
    Dostawca treści:
    Bibliografia CBW
    Artykuł
    Tytuł:
    Impact of a dipole on the phytoplankton community in a semi-enclosed basin of the Southern Gulf of California, Mexico
    Autorzy:
    Duran-Campos, E.
    Monreal-Gomez, M.A.
    Salas de Leon, D.A.
    Coria-Monter, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/47595.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    phytoplankton
    chlorophyll a
    dipole impact
    horizontal distribution
    thermohaline
    geostrophic flow
    dinoflagellate
    California Gulf
    Mexico
    Źródło:
    Oceanologia; 2019, 61, 3
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Women Leaders in Shipping as Role Models for Women Seafarers
    Autorzy:
    Dragomir, C.
    Baylon, A. M.
    Azirh, N. T.
    Leon, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/117013.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    woman seafarers
    seafarers problems
    women leaders
    women leaders in shipping
    gender issues in shipping
    Maritime Education and Training (MET)
    IAMU
    maritime career
    Opis:
    This article presents a part of the qualitative research results from the GECAMET international academic study on gender issues in shipping. One of the aims of GECAMET research represents the understanding of human factors considering gender equality and cultural awareness issues met in the shipping industry. In this paper are published qualitative results obtained through 47 structured online interviews of women seafarers made in the period 201‐2018. The target group of respondents was formed by women leaders in the shipping sector which are current seafarers with careers on board ship. Other data collected involved leaders defined as ex-seafarers working in managerial positions working on shore. Results of the interviews provide an excellent source of inspirational leadership. Data obtained is useful for women seafarers that need models and motivational aid to join maritime education and maritime careers, and to surpass any future challenges. Data is also helpful for shipping organizations and MET to improve equal and adequate access to women to seafarer careers on board ship. The research was possible with the support of the International Association of Maritime Universities (IAMU) and the Nippon Foundation in Japan.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2018, 12, 2; 279-284
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Changes in Chlorophyll a fluorescence and DNA as a plant response to UV-B radiation in Gnaphalium vira-vira
    Autorzy:
    Cuadra, Pedro
    Fajardo, Víctor
    Pimentel, Paula
    Moya-Leon, M. Alejandra
    Herrera, Raúl
    Powiązania:
    https://bibliotekanauki.pl/articles/16538468.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czasopisma i Monografie PAN
    Tematy:
    Antarctic
    SII reaction center
    DNA damage
    photochemical and non-photochemical quenching
    Opis:
    Ozone depletion at southern latitudes has recently increased the fluence of ultraviolet-B (UV-B) radiation striking the ground. This phenomenon has sparked much interest in unravelling the effects of this harmful radiation on living systems. UV-B radiation triggers several responses that affect plant physiology, morphology and biochemistry. In this study, the effect of supplemental UV-B radiation on DNA profile and chlorophyll a (CHl a) fluorescence characteristics were analyzed. An increase in the genetic variability of irradiated plants was observed in the Inter Sequence Simple Repeats products. The effect on photosynthesis was studied through fluorescence emissions. The obtained data showed that photochemical quenching (qP) decreased in irradiated plants. This effect may be attributed to a decrease in the number of open reaction centers of photosystem II (PSII) as suggested by the decreased values of minimal and maximal fluorescence. Likewise, non-photochemical quenching (NPQ) increased in both control and irradiated groups, but treated plants presented lower NPQ values than controls. The heat dissipation mechanism was also altered, probably due to a decrease i in the yield of the maximal fluorescence in light-adapted leaves (Fm´). According to these findings, UV-B radiation affects the CHl a fluorescence mechanisms and modifies DNA profile. Consequently, these changes influence the yield and growth of plants, which is an important consideration given the current climate change situation.
    Źródło:
    Polish Polar Research; 2022, 43, 4; 325-339
    0138-0338
    2081-8262
    Pojawia się w:
    Polish Polar Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Acoustic Rehabilitation of the Church of Santa Ana in Moratalaz, Madrid
    Autorzy:
    Bueno, A. M.
    León, A. L.
    Galindo, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/176614.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    room acoustics
    worship acoustics
    acoustic simulation
    sound-reinforcement
    acoustic rehabilitation
    Opis:
    The church of Santa Ana in Moratalaz, Madrid, Spain (1965–1971), is an emblematic work of the architect Miguel Fisac. In his long career include interventions in the religious field, constituting one of the most important contributions to Spanish religious architecture of the last century. This church is a singular place of worship and architecturally significant, in which the acoustics played an important role in the configuration of the spatiality of the church. This paper studies the acoustic behaviour of the church and its relationship with its unique structural, spatial and coating material characteristics. The analysis of the current acoustic conditions, with high reverberation times (up to 6 seconds) and poor intelligibility on the audience, serve as the basis for making an acoustic rehabilitation proposal that contributes to improving the sound conditions of the building for the intended use, without distorting the spatial, formal and material aspects with which the architect conceived the project.
    Źródło:
    Archives of Acoustics; 2012, 37, 4; 435-446
    0137-5075
    Pojawia się w:
    Archives of Acoustics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Sound Behaviour of Concrete Churches. The Church of Santa Cruz de Oleiros
    Autorzy:
    Bueno, A. M.
    Galindo, M.
    León, A. L.
    Powiązania:
    https://bibliotekanauki.pl/articles/177435.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    room acoustics
    concrete
    worship acoustics
    acoustic simulation
    acoustic energy
    intelligibility
    Opis:
    The church of Santa Cruz de Oleiros, Spain (1967) shows architect Miguel Fisac’s perception of sacred space after the Second Vatican Council. In this place of worship, the architect responded to the new liturgical guidelines combining geometry and architectural forms with the material of the moment, concrete. However, ordinary religious celebrations reveal acoustic deficiencies for the main use of the building. This fact is corroborated by acoustic measurements in situ. With a methodology that uses simulation techniques for the sound field, the analysis of the current acoustic behaviour of the room will serve as the basis for an acoustic rehabilitation proposal aimed at improving the acoustic conditions and so, the functionality of the church.
    Źródło:
    Archives of Acoustics; 2018, 43, 2; 297-306
    0137-5075
    Pojawia się w:
    Archives of Acoustics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Identification of Gastric Cancer from Speckle Patterns
    Autorzy:
    Andrade-Eraso, C.
    Patiño-Velasco, M.
    Vásquez-López, J.
    León, J.
    Bolaños-Pantoja, G.
    Trivi, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1490749.pdf
    Data publikacji:
    2012-01
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    78.68.+m
    42.87.-d
    87.50.W-
    Opis:
    Speckle technique is based on the light intensity distribution randomly formed when a laser light is reflected on a rough surface, creating a pattern of illuminated grains (constructively) and dark (destructive) on scales of 1 μm. When the samples are displaced or deformed, the speckle pattern is altered. In this paper we present speckle patterns obtained from samples of gastric mucosa that is physically altered for the carcinogenesis process. Biopsies were studied with different diagnoses and were grouped according to the characteristics of speckle patterns. Speckle patterns were obtained by illuminating the samples with green laser. Morphological parameters of the speckle patterns reveal existence of 3 descriptors: the average grain size, hydraulic radius and the radio of the Weddel disc, which showed a high, intermediate and low value. The comparison shows agreement between the histopathological diagnosis and the values obtained by the speckle technique, making this technique emerge as a new classification system for quantitative diagnosis of precancerous lesions.
    Źródło:
    Acta Physica Polonica A; 2012, 121, 1; 62-64
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-15 z 15

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