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Wyszukujesz frazę "Vazquez, M.A.A." wg kryterium: Autor

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    Wyświetlanie 1-10 z 10
    Tytuł:
    Fungal spores in four catholic churches in the metropolitan area of Monterrey, Nuevo León State, Mexico – First study
    Autorzy:
    Estrada, A.R.
    Torres, E.M.
    Vazquez, M.A.A.
    Pinero, J.L.H.
    Lucio, M.A.G.
    Martinez, S.M.S.
    Powiązania:
    https://bibliotekanauki.pl/articles/52132.pdf
    Data publikacji:
    2015
    Wydawca:
    Instytut Medycyny Wsi
    Źródło:
    Annals of Agricultural and Environmental Medicine; 2015, 22, 2
    1232-1966
    Pojawia się w:
    Annals of Agricultural and Environmental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Characterization of sub-channel based Málaga atmospheric optical links with real β parameter
    Autorzy:
    López-González, F. J.
    Jurado-Navas, A.
    Garrido-Balsells, J. M.
    Castillo-Vázquez, M.
    Puerta-Notario, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/174807.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    Malaga distribution
    generalized-K distribution
    atmospheric optical communications
    atmospheric propagation
    atmospheric turbulence
    scintillation
    Opis:
    A generalization of the Málaga atmospheric optical communications links treated as a finite number of generalized-K distributed sub-channels is analyzed in terms of outage probability and outage rate when its β parameter belongs to the set of real numbers. To the best of the author’s knowledge, this is the first time that β ∈ ℜ is considered. The new analytical expressions derived in this paper lead to a new physical and more realistic interpretation of atmospheric optical links, especially in terms of performance.
    Źródło:
    Optica Applicata; 2017, 47, 4; 545-556
    0078-5466
    1899-7015
    Pojawia się w:
    Optica Applicata
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Introns of plant pri-miRNAs enhance miRNA biogenesis
    Autorzy:
    Bielewicz, D.
    Kalak, M.
    Kalyna, M.
    Windels, D.
    Barta, A.
    Vazquez, F.
    Szweykowska-Kulinska, Z.
    Jarmolowski, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/80799.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    conference
    microRNA
    biogenesis
    small RNA
    gene expression
    environment condition
    intron
    protein-coding gene
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 3
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    EDAS (Egnos Data Access Service) differential GNSS corrections: a reliable free-of-charge alternative for precision farming in Europe
    Autorzy:
    Vázquez, J.
    Lacarra, E.
    Morán, J.
    Sánchez, M. A.
    González, A.
    Bruzual, J.
    Rioja, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/320569.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Forum Nawigacyjne
    Tematy:
    GNSS
    Galileo
    EDAS
    tracking
    firefighting
    multisensor
    fusion
    communication optimization
    Opis:
    EDAS (EGNOS Data Access Service) is the EGNOS internet broadcast service, which provides free of charge access to the data collected and generated by the EGNOS infrastructure. EDAS disseminates over the Internet, both in real time and via an FTP archive, the raw data of the GPS, GLONASS (no commitment on GLONASS data is provided (1)) and EGNOS GEO satellites collected by the receivers located at the EGNOS reference stations, which are mainly distributed over Europe and North Africa. The EDAS services offer several types of GNSS data in various protocols and formats, such as DGNSS corrections. This paper reports on the results of some in-field tests conducted by ESSP and Topcon Agriculture to confirm the suitability of EDAS DGNSS corrections for precision farming in Europe. The European Commission (EC) is the owner of EGNOS system (including EDAS) and has delegated the exploitation of EGNOS to the European GNSS Agency (GSA). EDAS service provision is performed by ESSP, as EGNOS Services Provider, under contract with the GSA, the EGNOS program manager. In the ENC 2018 article “EDAS (EGNOS Data Access Service): Differential GPS corrections performance test with state-of-the-art precision agriculture system”, ESSP and Topcon Agriculture presented the results of the first in-field test conducted in a dynamic and real-life environment in the summer of 2017. The test results indicated that the EDAS DGNSS corrections could enable a reliable pass-to-pass accuracy performance for a wide range of precision agriculture applications and become an attractive solution for cereal farms, when the farm is located in the vicinity of an EGNOS reference station. In particular, Topcon Agriculture acknowledged that the observed performance was sufficient to support the following precision agriculture applications: spraying and spreading of any crop type, tilling and harvesting of cereal. Then, ESSP and Topcon Agriculture engaged in additional testing activities to further characterise the EDAS DGPS performance in different scenarios (i.e. at various European locations and with a variety of distances between the designated farm and the target EGNOS reference station). In each test, multiple runs with the rover tractors have been performed over the reference patterns predefined in the Topcon guidance systems. Data recorded during the tests has been analysed in detail, looking at the key performance indicators (e.g. cross track error and pass-to-pass performance) that characterize the EDAS DGPS performance for precision agriculture applications. Different techniques for the computation of the pass-to-pass accuracy performance have been used, including a procedure to measure live in the field and a post-processing alternative. The diversity of scenarios available allows drawing conclusions on the applicability of EDAS DGPS corrections (in terms of maximum distance from the target EGNOS station) for precision agriculture and also understanding the impact of operationally relevant aspects such as the quality of the mobile internet coverage (highly variable across Europe). The EDAS system and its architecture, the main types of data disseminated through EDAS services and the online information available to the EDAS users are introduced in this paper. In particular, the EDAS Ntrip service is described in detail, since it provides the differential corrections to the GPS and GLONASS satellites at the EGNOS reference stations in RTCM format, which are the basis for the present study. The article also reports on the results of the latest tests, which have been performed using Topcon receivers, vehicles and auto-steering systems. In all cases, two different Topcon guidance systems on board tractors were running simultaneously to assess the EDAS DGPS positioning performance with respect to a the reference provided by a top-performing RTK-based Topcon solution. The objective of this paper is to draw conclusions on the use of EDAS DGPS corrections as a reliable free-of-charge alternative for precision farming in Europe (especially for cereal farms), based on the available performance results from the testing campaign and the feedback from the involved precision agriculture experts.
    Źródło:
    Annual of Navigation; 2019, 26; 46-58
    1640-8632
    Pojawia się w:
    Annual of Navigation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Optimal threshold detection for Málaga turbulent optical links
    Autorzy:
    Jurado-Navas, A.
    Garrido-Balsells, J. M.
    Castillo-Vázquez, M.
    Puerta-Notario, A.
    Monroy, I. T.
    Olmos, J. J. V.
    Powiązania:
    https://bibliotekanauki.pl/articles/173418.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    atmospheric propagation
    atmospheric turbulence
    Malaga distribution
    scintillation
    Opis:
    A new and generalized statistical model, called Málaga distribution (M distribution), has been derived recently to characterize the irradiance fluctuations of an unbounded optical wave front propagating through a turbulent medium under all irradiance fluctuation conditions. As great advantages associated to that model, we can indicate that it is written in a simple tractable closed-form expression and that it is able to unify most of the proposed statistical models for free-space optical communications derived until now in the scientific literature. Based on that Málaga model, we have analyzed in this paper the role of the detection threshold in a free-space optical system employing an on-off keying modulation technique and involved in different scenarios, and taking into account the extinction ratio associated to the employed laser. First we have derived some analytical expressions for the lower-bound performance of the free-space optical system with the light intensity fading induced by turbulence obtained when the additive white Gaussian noise is not present in the system. Then, we have analyzed the optimal threshold in the system and how it changes when atmospheric conditions vary. Finally, a closed form expression for the bit error rate of that system is derived.
    Źródło:
    Optica Applicata; 2016, 46, 4; 577-595
    0078-5466
    1899-7015
    Pojawia się w:
    Optica Applicata
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Airborne pollen of Carya, Celtis, Cupressus, Fraxinus and Pinus in the metropolitan area of Monterrey Nuevo Leon, Mexico
    Autorzy:
    Rocha-Estrada, A
    Alvarado-Vazquez, M.A.
    Torres-Cepeda, T.E.
    Foroughbakhch-Pournavab, R.
    Hernandez-Pinero, J.L.
    Powiązania:
    https://bibliotekanauki.pl/articles/51592.pdf
    Data publikacji:
    2008
    Wydawca:
    Instytut Medycyny Wsi
    Tematy:
    Pinus
    pollen grain
    Celtis
    metropolitan area
    airborne pollen
    Carya
    street
    private garden
    public park
    Mexico
    Nuevo Leon
    plant
    atmosphere
    Monterrey
    garden
    Cupressus
    Fraxinus
    Źródło:
    Annals of Agricultural and Environmental Medicine; 2008, 15, 2
    1232-1966
    Pojawia się w:
    Annals of Agricultural and Environmental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Occurrence of mycotoxins in talkan: a cereal-based food traditional for Turkic population
    Autorzy:
    Tattibayeva, D.
    Nebot, C.
    Miranda J.M.
    Abuova, A.B.
    Kizatova, M.Z.
    Vazquez, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/2087741.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    food-contamination
    corn
    fungi
    HPLC-MS/MS
    Kazakhstan
    Źródło:
    Polish Journal of Veterinary Sciences; 2018, 21, 2; 333-341
    1505-1773
    Pojawia się w:
    Polish Journal of Veterinary Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Extreme Ultraviolet Surface Modification of Polyethylene Terephthalate (PET) for Surface Structuring and Wettability Control
    Autorzy:
    Ahad, I.
    Fiedorowicz, H.
    Budner, B.
    Kaldonski, T.
    Vázquez, M.
    Bartnik, A.
    Brabazon, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/1398827.pdf
    Data publikacji:
    2016-02
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    81.05.Lg
    81.40.Wx
    81.16.Rf
    81.65.-b
    Opis:
    The surface modification of polyethylene terephthalate (PET) polymer films has been performed by irradiation of extreme ultraviolet photons to investigate the effect of surface structuring on wettability control. For biomedical engineering applications, surface structuring and wettability control of PET films could enhance the polymer biocompatibility by promoting cell adhesion and consequently proliferation. The PET films are irradiated with laser plasma extreme ultraviolet source based on double stream gas puff target under different environments. The extreme ultraviolet modified PET film surfaces are characterized by atomic force microscopy and WCA goniometer. The extreme ultraviolet surface modification resulted in the formation of nano- and microstructuring on the polymer surfaces. The surface structuring consequently increased WCA making the PET surfaces more hydrophobic. The results demonstrate the direct relationship between surface roughness and hydrophobicity for extreme ultraviolet modified PET samples.
    Źródło:
    Acta Physica Polonica A; 2016, 129, 2; 241-243
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Optical Investigation of ZnO Nanowires
    Autorzy:
    Martínez-Criado, G.
    Hernández-Vélez, M.
    Letard, I.
    Cros, A.
    Cantarero, A.
    Mínguez-Bacho, I.
    Susini, J.
    Tucoulou, R.
    Sans, J.
    Sanz, R.
    Vázquez, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1539044.pdf
    Data publikacji:
    2010-02
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    85.75.-d
    61.10.Ht
    78.70.En
    81.05.Ea
    Opis:
    In this study we report the application of synchrotron X-ray fluorescence, photoluminescence and Raman scattering techniques to the analysis of the incorporation of impurities in unintentionally doped ZnO nanowires. Highly ordered one-dimensional ZnO arrays were fabricated by an oxidation process of Zn metal electrodeposited in nanoporous anodic alumina template. X-ray fluorescence data show the contribution of residual elements into the ZnO nanowires growth. A rough analytical quantification of the main light and heavy chemical contents derives impurity concentrations below 1%. The optical efficiency of ZnO nanowires is strongly affected by non-radiative centers up to temperatures as low as 100 K. The photoluminescence was found to be totally dominated by optical transitions associated with the anodic alumina template. Finally, the Raman scattering provides no evidence of local vibrational modes or secondary phases, but it shows the unambiguous signature of the ZnO hexagonal phase.
    Źródło:
    Acta Physica Polonica A; 2010, 117, 2; 369-373
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Physical and chemical characterization of masa and tortillas from parental lines, crosses, and one hybrid
    Autorzy:
    Valderrama-Bravo, C.
    Dominguez-Pacheco, A.
    Hernandez-Aguilar, C.
    Zepeda-Bautista, R.
    del Real-Lopez, A.
    Pahua-Ramos, M.E.
    Arellano-Vazquez, J.L.
    Moreno-Martinez, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/24739.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Opis:
    In maize plant breeding aimed at producing a hybrid, it is necessary to characterize the parents and hybrids by their agronomic aspects and grain quality so that the processing industry may offer consumers a quality product and also improve its efficiency. This study evaluated the viscoelastic parameters of masa and the chemical and texture properties of tortillas obtained from parent lines (M-54, M55, and CML-242), two single crosses (M54xM55 and M55xM54), and one hybrid (H-70). The morpho- logy of the maize grains and tortillas was analyzed using scanning electron microscopy. The firmness of masa obtained from CML-242 and H-70 maize was higher than that from the other maize genotypes. M-54 tortillas showed the lowest crude fiber content. Otherwise, tortillas obtained from the M55xM54 hard grain had the lowest fat content and extensibility, while H-70 tortillas showed an intermediate breaking point and extensibility. M-54 and M54xM55 tortillas were softer due to their more swollen starch granules. In contrast, rigid tortillas were obtained from CML-242 and H-70. Grain hardness causes different morphology in starch and tortilla of maize genotypes. However, grain hardness did not influence the characteristics of texture in tortillas.
    Źródło:
    International Agrophysics; 2017, 31, 1
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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