Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "Martinez, J.M." wg kryterium: Autor

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-40 z 40
    Tytuł:
    The role of mutagenesis in the modification of the fatty acid profile of oilseed crops
    Autorzy:
    Velasco, L
    Perez-Vich, B.
    Fernandez-Martinez, J.M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2043643.pdf
    Data publikacji:
    1999
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    oil seed
    mutagenesis
    induced mutation
    fatty acid
    crop
    modification
    Źródło:
    Journal of Applied Genetics; 1999, 40, 3; 185-209
    1234-1983
    Pojawia się w:
    Journal of Applied Genetics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Competition and critical periods in spring sugar beet cultivation
    Autorzy:
    Martinez, J.M.
    de Juan Valero, J.-A
    Padilla, A.D.
    Picornell Buendia, M.-R.
    Powiązania:
    https://bibliotekanauki.pl/articles/66152.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    competition
    critical period
    spring sugar-beet
    sugar-beet
    plant cultivation
    weed
    irrigation
    yield
    Opis:
    High yields with low costs require that sugar beets be kept free of weeds, during critical periods, using labor or chemical treatments. Since the critical periods for this crop in Castilla – La Mancha (Spain) are unknown, the first goal of this study was to determine the effect of early and late competition on yield. The second goal was to determine the critical periods, while taking into consideration the semiarid climatic conditions of this region. Two irrigation farms located in the province of Albacete are dedicated to sugar beet cultivation. These two farms were chosen to carry out the tests March (140,000–150,000 seeds ∙ ha–1) and harvested in October. Two simultaneous and complementary experiments were carried out in each year and farm. Two scenarios were considered with eight different treatments each. In the first one (With Weeds Until – WWU), plots were infested by weeds up to a certain date. In the second one (Free of Weeds Until – FWU), plots were kept free of weeds up to a certain date. For each test, a randomised experimental blocked field was designed and there were four repetitions, each of them containing eight elemental plots (12 m2). Each plot was weeded by hand or weeds were left to grow till a definite date.The results indicated that a 1% loss of yield was reached in the early competition after 14 days, while a loss of 5% was reached after a period of 41 days after it was infested. The results also indicated that in late competition, if a crop is kept clean for 124 days and it is infested afterwards, a 1% loss is reached. However, the loss increases to 5% if the plot is kept clean for 111 days. For a 1% loss the critical period is 110 days and 70 days for a 5% loss.
    Źródło:
    Journal of Plant Protection Research; 2015, 55, 4
    1427-4345
    Pojawia się w:
    Journal of Plant Protection Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    GNSS technologies for electronic toll collection
    Autorzy:
    Martinez Olague, M. A.
    Cosmen-Schortmann, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/393918.pdf
    Data publikacji:
    2008
    Wydawca:
    Polskie Stowarzyszenie Telematyki Transportu
    Tematy:
    elektroniczny pobór opłat
    opłaty drogowe
    GPS
    telematyka
    electronic toll collection
    road pricing
    telematics
    Opis:
    Problems with infrastructure financing, pollution and congestion are leading different countries to the implementation of Road Pricing schemes. GNSS appears as one of the most flexible and cost efficient technologies for the implementation of large ETC systems. However, due to the nature of GNSS with random and occasionally large position errors, GNSS based ETC still has some constraints that need to be overcome. The use of a signal with guaranteed integrity, as the one available in WAAS or EGNOS combined with advanced OBU algorithms provides an efficient solution that guarantees the correctness of the charging. This paper presents the results of the trials in which this technology has been used and demonstrates how the probability of overcharging can be controlled and dramatically reduced in a GNSS-only system. These trials have been executed in London, Madrid and The Netherlands.
    Źródło:
    Archives of Transport System Telematics; 2008, 1, 1; 68-72
    1899-8208
    Pojawia się w:
    Archives of Transport System Telematics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Three-channel X-ray detection head for diagnostics of plasma in noisy environment
    Autorzy:
    Ryć, L.
    Kaczmarczyk, J.
    Martinez, J. F.
    Scholz, M.
    Słysz, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/148717.pdf
    Data publikacji:
    2001
    Wydawca:
    Instytut Chemii i Techniki Jądrowej
    Tematy:
    high-temperature plasma
    semiconductor detector
    X-ray diagnostics
    Opis:
    A compact, three-channel, noise-resistant detection head based on semiconductor detectors has been built for the diagnostics of X-ray emission from plasmas. It is useful in the energy range of 0.5–20 keV.
    Źródło:
    Nukleonika; 2001, 46, suppl. 1; 95-97
    0029-5922
    1508-5791
    Pojawia się w:
    Nukleonika
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Grain discoloration in different genotypes of durum wheat (Triticum durum L.) in Argentina: associated mycobiota and peroxidase activity
    Autorzy:
    Cipollone, M.J.
    Moya, P.
    Martinez, I.
    Saparrat, M.
    Sisterna, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2084746.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    durum wheat
    grain discoloration
    mycobiota
    peroxidase activity
    Opis:
    Wheat grain discoloration, a worldwide disease that lowers grain quality and decreases grain yield, does not have a single etiology. It has been proposed that it is a consequence of an abiotic mechanism, a response to environmental conditions or enzymatic activity. It has also been suggest that it is a biotic mechanism, a fungal infection principally by Alternaria spp. and Bipolaris sorokiniana. The present work was carried out to analyze the possible etiology of this disease in nine durum wheat genotypes from two localities of southern Buenos Aires province (Argentina) on two sowing dates. Incidence (percentage of grain discoloration) was recorded and mycobiota associated with this pathology was registered following ISTA rules. Peroxidase activity in an extract obtained from grains belonging to genotypes of the locality that showed the highest incidence was measured. The incidence among genotypes, localities and sowing dates varied, although the genotypes with the higher and lower values of incidence were the same for all the variables tested. The fungus Alternaria spp. was isolated the most frequently followed by Fusarium spp., while Bipolaris sorokiniana was found the least frequently. Peroxidase activity showed that all the treatments had similar levels of enzymatic activity, but there was no clear differentiation between controls either between genotypes with the lowest or the highest incidence values. This suggests that peroxidase activity did not have a clear relationship with grain discoloration. In this research, it is presumed that fungal infection is the main cause of this disease.
    Źródło:
    Journal of Plant Protection Research; 2020, 60, 1; 14-20
    1427-4345
    Pojawia się w:
    Journal of Plant Protection Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaporation of magnetically treated water and NaCl solutions
    Autorzy:
    Carbonell, M.V.
    Martinez, E.
    Diaz, J.E.
    Powiązania:
    https://bibliotekanauki.pl/articles/26429.pdf
    Data publikacji:
    2002
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    evaporation
    physicochemical property
    solution
    magnetic treatment
    sodium chloride
    water change
    water
    magnetohydrodynamics
    Źródło:
    International Agrophysics; 2002, 16, 3
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Reliability-based economic model predictive control for generalised flow-based networks including actuators’ health-aware capabilities
    Autorzy:
    Grosso, J. M.
    Ocampo-Martinez, C.
    Puig, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/330080.pdf
    Data publikacji:
    2016
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    model predictive control
    flow based network
    dynamic safety stocks
    actuator health
    service reliability
    chance constraints
    economic optimisation
    sterowanie predykcyjne
    niezawodność serwisu
    optymalizacja ekonomiczna
    Opis:
    This paper proposes a reliability-based economic model predictive control (MPC) strategy for the management of generalized flow-based networks, integrating some ideas on network service reliability, dynamic safety stock planning, and degradation of equipment health. The proposed strategy is based on a single-layer economic optimisation problem with dynamic constraints, which includes two enhancements with respect to existing approaches. The first enhancement considers chance-constraint programming to compute an optimal inventory replenishment policy based on a desired risk acceptability level, leading to dynamical allocation of safety stocks in flow-based networks to satisfy non-stationary flow demands. The second enhancement computes a smart distribution of the control effort and maximises actuators’ availability by estimating their degradation and reliability. The proposed approach is illustrated with an application of water transport networks using the Barcelona network as the case study considered.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2016, 26, 3; 641-654
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Growing the endangered species Astragalus nitidiflorus in the nursery: fertilization rate affects growth, and leaf nutrient and chlorophyll contents
    Autorzy:
    Vicente, M.J.
    Martínez-Sánchez, J.J.
    Franco, J.A.
    Bañón, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/11858781.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
    Tematy:
    Spain
    plant cultivation
    Astragalus nitidiflorus
    endangered species
    endemic plant
    plant growth
    leaf nutrient content
    chlorophyll content
    fertilization rate
    nodulation
    Opis:
    Astragalus nitidiflorus is an endangered legume endemic to the southeast of the Iberian Peninsula. This species develops symbiotic relationships with N-fixing bacteria. However, the problem of isolating its rhizobia has not been solved. Because poor N fixation in plants can be corrected by fertilization, the effect of N-P-K fertilizers on growth, leaf chlorophyll and mineral ions was studied. Plants of A. nitidiflorus were grown in 100%-substrate with different N-P-K fertilizer rates (mg l–1): 1-1-8 (S0), 69-29-35 (SL), 144-43-131 (SM) and 245-58-235 (SH). A treatment with substrate plus soil from the natural habitat and no fertilizers (T0) was included. The reference foliar contents of N, P and K were 42.5, 3.5 and 36.5 mg g–1, respectively. Although the species did not form root nodules when grown in substrate, T0 plants produced active nodules that allowed the plants to grow properly without fertilization. In the absence of nodules, both N fertilization (~144 mg l–1) and Fe fertilization (>12 mg l–1) are vital, as is, to a lesser extent, K fertilization (~75 mg l–1 K2O). The S0 and SL reduced leaf chlorophyll, while SM prevented its degradation.
    Źródło:
    Acta Scientiarum Polonorum. Hortorum Cultus; 2018, 17, 4; 129-136
    1644-0692
    Pojawia się w:
    Acta Scientiarum Polonorum. Hortorum Cultus
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Balancing Offshoring and Agility in the Apparel Industry: Lessons From Benetton and Inditex
    Offshoring w przemyśle odzieżowym na przykładzie firm Benetton i Inditex
    Autorzy:
    Sartal, A.
    Martínez-Senra, A. I.
    García, J. M.
    Powiązania:
    https://bibliotekanauki.pl/articles/233843.pdf
    Data publikacji:
    2017
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Biopolimerów i Włókien Chemicznych
    Tematy:
    offshoring
    agility
    apparel industry
    organizational innovation
    time to market
    przemysł odzieżowy
    innowacje organizacyjne
    cykl produkcyjny
    Opis:
    Based on a case study from the apparel industry, the paper addresses how the organizational innovations adopted by Benetton and Inditex allowed them to balance lower production costs in developing countries with an adequate response time to frequent preference changes and increasing demands for customisation. Findings confirm the fragility of multinationals whose offshoring strategy has not considered the costs of coordinating suppliers in far-off locations and suggest organisational improvements that make production costs, variety and time to market goals compatible. Our research thus provides a view of the conditions and processes that can overcome in increasingly volatile environments the misalignment between demand changes and the limited reactivity of industrial infrastructures. Furthermore the innovation strategy of textile companies has created generalizable lessons for other sectors in which demand uncertainty is high, life cycles short, and customers are, to some extent, prepared to pay for “speed to market”.
    Na podstawie studium przypadku z branży odzieżowej w artykule przedstawiono, w jaki sposób innowacje organizacyjne przyjęte przez firmy Benetton i Inditex pozwoliły na obniżenie kosztów produkcji w krajach rozwijających się z zachowaniem odpowiedniego czasu reakcji na częste zmiany preferencji i rosnące wymagania klientów. Wyniki potwierdzają niestabilność firm międzynarodowych, których strategia offshoringowa nie uwzględniała kosztów koordynacji dostawców. Przeprowadzone badania pozwalają wskazać rozwiązania problemów, z którymi borykają się firmy działające w specyficznych warunkach częstej zmiany popytu i ograniczonej reaktywności infrastruktury przemysłowej. Ponadto strategia innowacyjna firm tekstylnych może być przykładem dla innych sektorów, w których panuje równie wysoka niepewność popytu i krótki cykl życia produktu.
    Źródło:
    Fibres & Textiles in Eastern Europe; 2017, 2 (122); 16-23
    1230-3666
    2300-7354
    Pojawia się w:
    Fibres & Textiles in Eastern Europe
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Scale effects on sediment yield from badland areas in Mediterranean environments
    Autorzy:
    Martínez-Murillo, J. F.
    Nadal-Romero, E.
    Vanmaercke, M.
    Poesen, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/294681.pdf
    Data publikacji:
    2011
    Wydawca:
    Stowarzyszenie Geomorfologów Polskich
    Tematy:
    badlands
    sediment yield
    drainage area
    spatial scale
    Opis:
    This study investigates area-specific Sediment Yield (SY) in Mediterranean badland areas at different spatial scales using a SY-database compiled from scientific literature. Relationships between the plot and catchment characteristics and the corresponding SY-data are analyzed. Results indicate that in Mediterranean environments SY is larger than in other environments,especially in badlands where a high variability of SY is observed depending on the spatial scale. In intensively gullied badlands,a complex plot or drainage area (A) -SY relationship is observed: for A ranging between 10-5 and 10 ha,SY is very high (mean SY equals 475 t ha-1 yr-1),whereas for A greater than 10 ha,SY decreases with increasing A (mean SY less than 100 t ha-1 yr-1).
    Źródło:
    Landform Analysis; 2011, 17; 105-109
    1429-799X
    Pojawia się w:
    Landform Analysis
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modelling the effects of land use changes on runoff and soil erosion in two Mediterranean catchments with active gullies (South of Spain)
    Autorzy:
    Martínez-Murillo, J. F.
    López-Vicente, M.
    Poesen, J.
    Ruiz-Sinoga, J. D.
    Powiązania:
    https://bibliotekanauki.pl/articles/294673.pdf
    Data publikacji:
    2011
    Wydawca:
    Stowarzyszenie Geomorfologów Polskich
    Tematy:
    gully erosion
    land use
    RMMF
    model
    runoff
    soil erosion
    Opis:
    This study investigates the effects of land use changes between 1956 and 2006 on runoff and soil erosion in two Mediterranean catchments (South Spain)with active gullies, by applying the RMMF Model and by comparing the erosion channel network from both years. Results underline the complexity of soil erosion dynamics in gullied catchments where a general increase in soil erosion due to land use changes can occur simultaneously with a decrease in erosion rates within the gully system.
    Źródło:
    Landform Analysis; 2011, 17; 99-104
    1429-799X
    Pojawia się w:
    Landform Analysis
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Optimal design of membership functions of a fuzzy logic controller for an autonomous wheeled mobile robot using ant colony optimization
    Autorzy:
    Martínez, P.
    Castillo, O.
    Alanis, A.
    Garcia, M.
    Soria, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/384537.pdf
    Data publikacji:
    2010
    Wydawca:
    Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
    Tematy:
    fuzzy control
    ant colony optimization
    autonomous mobile robots
    Opis:
    In this paper we describe the application of a Simple ACO (S-ACO) as a method of optimization for membership functions' parameters of a fuzzy logic controller (FLC) in order to find the optimal intelligent controller for an Autonomous Wheeled Mobile Robot. Simulation results show that ACO outperforms a GA in the optimization of FLCs for an autonomous mobile robot.
    Źródło:
    Journal of Automation Mobile Robotics and Intelligent Systems; 2010, 4, 1; 43-48
    1897-8649
    2080-2145
    Pojawia się w:
    Journal of Automation Mobile Robotics and Intelligent Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    BIBO stabilisation of continuous-time Takagi–Sugeno systems under persistent perturbations and input saturation
    Autorzy:
    Salcedo, J. V.
    Martínez, M.
    García-Nieto, S.
    Hilario, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/330698.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    linear matrix inequalities
    fuzzy system
    nonlinear system
    input saturation
    disturbance
    liniowe nierówności macierzowe
    układ rozmyty
    układ liniowy
    nasycenie wejściowe
    Opis:
    This paper presents a novel approach to the design of fuzzy state feedback controllers for continuous-time non-linear systems with input saturation under persistent perturbations. It is assumed that all the states of the Takagi–Sugeno (TS) fuzzy model representing a non-linear system are measurable. Such controllers achieve bounded input bounded output (BIBO) stabilisation in closed loop based on the computation of inescapable ellipsoids. These ellipsoids are computed with linear matrix inequalities (LMIs) that guarantee stabilisation with input saturation and persistent perturbations. In particular, two kinds of inescapable ellipsoids are computed when solving a multiobjective optimization problem: the maximum volume inescapable ellipsoids contained inside the validity domain of the TS fuzzy model and the smallest inescapable ellipsoids which guarantee a minimum *-norm (upper bound of the 1-norm) of the perturbed system. For every initial point contained in the maximum volume ellipsoid, the closed loop will enter the minimum *-norm ellipsoid after a finite time, and it will remain inside afterwards. Consequently, the designed controllers have a large domain of validity and ensure a small value for the 1-norm of closed loop.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2018, 28, 3; 457-472
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Impurity-Related Nonlinear Optical Absorption in Delta-Doped Quantum Rings
    Autorzy:
    Restrepo, R.
    Martínez-Orozco, J.
    Barseghyan, M.
    Mora-Ramos, M.
    Duque, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/1195152.pdf
    Data publikacji:
    2014-02
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    42.65.-k
    73.21.-b
    78.67.-n
    Opis:
    Using a variational procedure within the effective mass approximation, we have calculated the hydrogenic impurity binding energy as well as the impurity-related nonlinear optical absorption in a single quantum ring with axial n-type delta-doping. The delta-like potential along the z-direction is analytically modeled with a Hartree-like confining profile fitted to a one-dimensional Thomas-Fermi-based potential in the local density approximation. Both on-center and on-edge impurity positions are considered and the energies of the impurity states are examined as functions of the vertical size of the ring. It is found that the effect of changes in the geometry of the quantum ring leads to a shifting of the resonant peaks of the intra-band optical spectrum.
    Źródło:
    Acta Physica Polonica A; 2014, 125, 2; 245-247
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Spectrally tunable light source based on light-emitting diodes for custom lighting solutions
    Autorzy:
    Burgos-Fernandez, F. J.
    Vilaseca, M.
    Perales, E.
    Herrera-Ramirez, J. A.
    Martinez-Verdu, F. M.
    Pujol, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/173803.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    solid state lighting
    light-emitting diodes
    CIE standard illuminants
    minimization algorithm
    customized lighting design
    radiometry
    Opis:
    This study describes a novel spectral LED-based tunable light source used for customized lighting solutions, especially for the reconstruction of CIE (Commission Internationale de l'Eclairage) standard illuminants. The light source comprises 31 spectral bands ranging from 400 to 700 nm, an integrating cube and a control board with a 16-bit resolution. A minimization algorithm to calculate the weighting values for each channel was applied to reproduce illuminants with precision. The differences in spectral fitting and colorimetric parameters showed that the reconstructed spectra were comparable to the standard, especially for the D65, D50, A and E illuminants. Accurate results were also obtained for illuminants with narrow peaks such as fluorescents (F2 and F11) and a high-pressure sodium lamp (HP1). In conclusion, the developed spectral LED-based light source and the minimization algorithm are able to reproduce any CIE standard illuminants with a high spectral and colorimetric accuracy able to advance available custom lighting systems useful in the industry and other fields such as museum lighting.
    Źródło:
    Optica Applicata; 2016, 46, 1; 117-129
    0078-5466
    1899-7015
    Pojawia się w:
    Optica Applicata
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Importance of Internet And Online Social Networks in the Spanish Hotel Sector
    Autorzy:
    Infante-Moro, A.
    Infante-Moro, J-C.
    Martínez-López, F-J.
    García-Ordaz, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/118135.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Promocji Wiedzy
    Tematy:
    hotels
    online social networks
    internet
    e-commerce
    cross-sectional study
    Opis:
    This paper is a cross-sectional study on the use of Internet and Online Social Networks in the Spanish hotel sector compared to Spanish companies in other sectors. The conclusions from this extensive survey are that the use of online social networks is more important and is more developed in the hotel sector than in Spanish companies in general. However, although it gives considerable importance to online social networks, the hotel sector needs to revise its rules of usage. The use of new tools such as e-commerce to sell the hotel stays must increase, and marketing efforts should be geared more towards online social networks because the hotel sector is currently losing ground in a market that generates more and more potential clients and sales by the day.
    Źródło:
    Applied Computer Science; 2016, 12, 1; 75-86
    1895-3735
    Pojawia się w:
    Applied Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Inhomogeneity detection in phytoplankton time series using multivariate analyses
    Autorzy:
    Muniz, O.
    Rodriguez, J.G.
    Revilla, M.
    Laza-Martinez, A.
    Seoane, S.
    Franco, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/2079181.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    phytoplankton community
    monitoring programme
    uncertainty
    multivariate analysis
    inhomogeneity
    Opis:
    Phytoplankton communities have long been used as water quality indicators within environmental policies. This has fostered the development of national and international phytoplankton monitoring programs, but these networks are subject to sources of uncertainty due to laboratory issues. Nevertheless, studies regarding the interference associated with these aspects are not well-documented. Hence, a long time series (2003–2015) from the Basque continental shelf (southeastern Bay of Biscay) was analyzed to evaluate the uncertainty given by laboratory strategies when studying phytoplankton variability. Variability in phytoplankton communities was explained not only by environmental conditions but also by changes in fixatives (glutaraldehyde and acidic Lugol's solution) and laboratory staff. Based on Bray-Curtis distances, phytoplankton assemblages were found to be significantly dissimilar according to the effect of changes in the specialist handling the sample and the employed fixative. The pair-wise permutational multivariate analysis of variance (PERMANOVA) showed significant differences between the two fixatives utilized and also between the three taxonomists involved. Thus, laboratory-related effects should be considered in the study of phytoplankton time series.
    Źródło:
    Oceanologia; 2020, 62, 3; 243-254
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Support to maritime and inland waterways service providers for the transmission of EGNOS Corrections via IALA beacons and AIS/VDES stations
    Autorzy:
    López, M.
    Cano, M.
    Martínez, R.
    Álvarez, C.
    Tavira, L.
    Morán, J.
    Antón, V.
    Vázquez, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/117535.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    inland waterways
    IALA beacons
    AIS stations
    VDES stations
    EGNOS
    EGNOS corrections
    AIS Service Manager (ASM)
    Virtual Reference Station (VRS)
    Opis:
    The use of SBAS corrections for navigation, in both coastal waters and inland waterways, has already brought the attention of many European authorities, which are interested in its potential to complement/replace their DGPS radio beacon networks. The European GNSS Agency (GSA) has an active long-term trajectory working to foster the EGNOS adoption in maritime through the launch of several actions whose results will pave the way for the provision of maritime EGNOS services. In this line, GSA awarded the consortium ALG-Indra, ESSP and Alberding with the Specific Contract GSA/OP/07/13/SC24 ‘Support to Maritime Service Providers for the transmission of EGNOS corrections via IALA beacons and AIS/VDES stations’. The main objective of this Specific Contract is to demonstrate the operational performance of the transmission of EGNOS corrections converted to Differential GPS corrections over the existing transmission infrastructure (AIS base stations/IALA beacons) in the Maritime and Inland Waterways (IWW) domains, while providing a detailed cost benefit analysis of the solutions proposed. This service may complement the current GNSS augmentation services exploiting synergies and benefiting from the current infrastructure and standards, facilitating the adoption of EGNOS by maritime and inland waterways authorities. Furthermore, the service has no impact at user level since the DGNSS corrections are transmitted over the existing infrastructure, in the same format and implementing the same integrity mechanisms required for traditional IALA beacons ([1]). This project will allow the maritime and IWW service providers to have a clear understanding about the technical, operational and economic feasibility of the transmission of EGNOS corrections via IALA beacons and AIS/VDES stations.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2019, 13, 1; 45-52
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Annual cycle of phytoplankton community through the water column: Study applied to the implementation of bivalve offshore aquaculture in the Southeastern Bay of Biscay
    Autorzy:
    Muniz, O.
    Revilla, M.
    Rodriguez, J.G.
    Laza-Martinez, A.
    Fontan, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/47941.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    phytoplankton community
    water column
    open water
    bivalve
    biomass
    chlorophyll a
    nutrient
    hydrographic condition
    environmental variability
    Biscay Bay
    Źródło:
    Oceanologia; 2019, 61, 1
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Preliminary study of hot mix asphalt containing water treatment and sewage sludge
    Autorzy:
    Bastidas-Martínez, J. G.
    Camapum de Carvalho, J.
    Lucena, L. C.
    Farias, M. M.
    Rondón-Quintana, H. A.
    Powiązania:
    https://bibliotekanauki.pl/articles/230585.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    osad
    uzdatnianie wody
    osad ściekowy
    wypełniacz mineralny
    mieszanka asfaltowa gorąca
    water treatment
    sludge
    sewage sludge
    mineral filler
    hot mix asphalt
    Opis:
    Throughout the world, considerable quantities of water treatment sludge (WTS) and sewage sludge (SS) are produced as waste. This study assessed in the laboratory, the possibility to use both waste products when they are incorporated as filler at 1% with relation to the total mass of a hot mix asphalt - HMA. To this end, both waste products were initially reduced to ash through a calcination process. Resistance tests under monotonic load (Marshall and indirect tension tests), and cyclic load (resilient modulus test) were applied on mixes that contained WTS and SS. Besides, moisture damage (modified Lotmman test), and abrasion (Cantabro) resistance were assessed. An analysis of variance (ANOVA) test was performed in order to verify if the results are statically equal or not to those of the control HMA. As a general conclusion, it is reported that both materials show a resistance increase under monotonic load and higher stiffness under cyclic load (cohesion) when they are incorporated into the mix as filler despite the fact that the asphalt content used was less than the control mix. However, some problems are observed associated with moisture damage resistance, and friction wear (adherence).
    Źródło:
    Archives of Civil Engineering; 2020, 66, 1; 225-240
    1230-2945
    Pojawia się w:
    Archives of Civil Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Isolated theropod teeth associated with a sauropod skeleton from the Late Cretaceous Allen Formation of Río Negro, Patagonia, Argentina
    Autorzy:
    Meso, J.
    Hendrickx, C.
    Baiano, M.A.
    Canale, J.I.
    Salgado, L.
    Diaz-Martinez, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/2082324.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    Dinosauria
    Abelisauridae
    shed teeth
    morphotypes
    Cretaceous
    Patagonia
    Opis:
    The discovery of theropod shed teeth associated with sauropod remains is relatively common in Cretaceous deposits of Patagonia. However, only a handful of studies have thoroughly explored the phylogenetic affinities of the theropod dental material. Here, we describe and identify twelve theropod shed teeth associated with a partially complete skeleton of a titanosaur sauropod from the Allen Formation (middle Campanian–lower Maastrichtian; Upper Cretaceous) of Paso Córdoba, Río Negro, Argentina. Using three methods, namely a cladistic analysis performed on a dentition-based data matrix, and a discriminant and cluster analyses conducted on a large dataset of theropod teeth measurements, we identify three dental morphotypes which are confidently referred to abelisaurid theropods. Whether the morphotypes represent different abelisaurid subclades or different positional entities within the jaw of the same abelisaurid species, is unknown. Such an identification, nevertheless, provides additional evidence of abelisaurids feeding on sauropod carcasses. This study highlights the importance of using combined qualitative and quantitative methodologies to identify isolated theropod teeth, especially those that can provide direct information on feeding ecology.
    Źródło:
    Acta Palaeontologica Polonica; 2021, 66, 2; 409-423
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Residual Strain and Electrical Activity of Defects in Multicrystalline Silicon Solar Cells
    Autorzy:
    Martínez, O.
    Mass, J.
    Tejero, A.
    Moralejo, B.
    Hortelano, V.
    González, M.
    Jiménez, J.
    Parra, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/1198419.pdf
    Data publikacji:
    2014-04
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    78.30.Am
    61.72.Ff
    88.40.jj
    Opis:
    The growth process by casting methods of multi-crystalline Si results in a crystalline material with, among other defects, a high density of dislocations and grain boundaries. Impurity incorporation and their gathering around grain boundaries and dislocations seem to be the main factor determining the electrical activity of those defects, which limit the minority carrier lifetime. In this work, we analyze multi-crystalline Si samples by combining etching processes to reveal the defects, Raman spectroscopy for strain measurements, and light beam induced current measurements for the localization of electrically active defects. In particular, we have explored the etching routes capable to reveal the main defects (grain boundaries and dislocation lines), while their electrical activity is studied by the light beam induced current technique. We further analyze the strain levels around these defects by Raman micro-spectroscopy, aiming to obtain a more general picture of the correlation between residual stress and electrical activity of the extended defects. The higher stress levels are observed around intra-grain defects associated with dislocation lines, rather than around the grain boundaries. On the other hand, the intra-grain defects are also observed to give dark light beam induced current contrast associated with a higher electrical activity of these defects as compared to the grain boundaries.
    Źródło:
    Acta Physica Polonica A; 2014, 125, 4; 1013-1016
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    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:
    DYn-2 is an excellent chemical reporter for the Arabidopsis sulfenome
    Autorzy:
    Akter, M.
    Wahni, K.
    Martinez-Acedo, P.
    Carroll, K.
    van Breusegem, F.
    Messens, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/80760.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    conference
    oxidative stress
    redox signal
    Arabidopsis thaliana
    DYn-2 reporter
    purification
    sulphenome
    stress tolerance
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Raman Study of Multicrystalline Silicon Wafers Produced by the RST Process
    Autorzy:
    Tejero, A.
    Tupin, E.
    González, M.
    Martínez, O.
    Jiménez, J.
    Belouet, C.
    Baillis, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/1198416.pdf
    Data publikacji:
    2014-04
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    78.30.Am
    61.72.Ff
    88.40.jj
    Opis:
    In the silicon ribbon on a sacrificial template process silicon is deposited on both sides of a carbon ribbon, thus forming a Si/carbon/Si trilayer. The fast cooling of the ribbon in large temperature gradients generates stresses that are detrimental to both the electrical performance and the mechanical behaviour of the wafers. The assessment of the stresses is crucial for the setting-up of thermal treatments allowing for the stress relaxation of the wafers, prior to the cell fabrication. We present an analysis of the stress in the as-grown trilayer by a simulation of the thermomechanical behaviour of the cooling ribbon. Experimental measurements of the stress in as-grown and annealed trilayers are also presented. The results permit to establish the conditions for optimized growth and annealing.
    Źródło:
    Acta Physica Polonica A; 2014, 125, 4; 1006-1009
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Air-spore in Cartagena, Spain: Viable and non-viable sampling methods
    Autorzy:
    Elvira-Rendueles, B.
    Moreno, J.
    Garcia-Sanchez, A.
    Vergara, N.
    Martinez-Garcia, M.J.
    Moreno-Grau, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/51349.pdf
    Data publikacji:
    2013
    Wydawca:
    Instytut Medycyny Wsi
    Źródło:
    Annals of Agricultural and Environmental Medicine; 2013, 20, 4
    1232-1966
    Pojawia się w:
    Annals of Agricultural and Environmental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Biotic interaction between spionid polychaetes and bouchardiid brachiopods: Paleoecological, taphonomic and evolutionary implications
    Autorzy:
    Rodrigues, S.C.
    Simoes, M.G.
    Kowalewski, M.
    Petti, M.A.V.
    Nonato, E.F.
    Martinez, S.
    del Rio, C.J.
    Powiązania:
    https://bibliotekanauki.pl/articles/21792.pdf
    Data publikacji:
    2008
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    biotic interaction
    spionid polychaete
    polychaete
    bouchardiid brachiopod
    brachiopod
    paleoecology
    evolution
    Brachiopoda
    Spionidae
    Caulostrepsis
    Bouchardia
    Cenozoic
    Brazil
    Opis:
    Shells of Bouchardia rosea (Brachiopoda, Rhynchonelliformea) are abundant in Late Holocene death assemblages of the Ubatuba Bight, Brazil, SW Atlantic. This genus is also known from multiple localities in the Cenozoic fossil record of South America. A total of 1211 valves of B. rosea, 2086 shells of sympatric bivalve mollusks (14 nearshore localities ranging in depth from 0 to 30 m), 80 shells of Bouchardia zitteli, San Julián Formation, Paleogene, Argentina, and 135 shells of Bouchardia transplatina, Camacho Formation, Neogene, Uruguay were examined for bioerosion traces. All examined bouchardiid shells represent shallow−water, subtropical marine settings. Out of 1211 brachiopod shells of B. rosea, 1201 represent dead individuals. A total of 149 dead specimens displayed polychaete traces (Caulostrepsis). Live polychaetes were found inside Caulostrepsis borings in 10 life−collected brachiopods, indicating a syn−vivo interaction (Caulostrepsis traces in dead shells of B. rosea were always empty). The long and coiled peristomial palps, large chaetae on both sides of the 5th segment, and flanged pygidium found in the polychaetes are characteristic of the polychaete genus Polydora (Spionidae). The fact that 100% of the Caulostrepsis found in living brachiopods were still inhabited by the trace−making spionids, whereas none was found in dead hosts, implies active biotic interaction between the two living organisms rather than colonization of dead brachiopod shells. The absence of blisters, the lack of valve/site stereotypy, and the fact that tubes open only externally are all suggestive of a commensal relationship. These data document a new host group (bouchardiid rhynchonelliform brachiopods) with which spionids can interact (interestingly, spionid−infested sympatric bivalves have not been found in the study area despite extensive sampling). The syn−vivo interaction indicates that substantial bioerosion may occur when the host is alive. Thus, the presence of such bioerosion traces on fossil shells need not imply a prolonged post−mortem exposure of shells on the sea floor. Also, none of the Paleogene and Neogene Bouchardia species included any ichnological evidence for spionid infestation. This indicates that the Spionidae/ Bouchardia association may be geologically young, although the lack of older records may also reflect limited sampling and/or taphonomic biases.
    Źródło:
    Acta Palaeontologica Polonica; 2008, 53, 4
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    New association between Amblyomma parvitarsum (Acari: Ixodidae) and the endemic lizard Liolaemus eleodori (Iguania: Liolaemidae) in Argentina
    Autorzy:
    Castillo, G.N.
    Acosta, J.C.
    Rodríguez-Munoz, M.
    Martínez, T.
    Gonzalez-Rivas, C.
    Nava, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/5570.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Parazytologiczne
    Źródło:
    Annals of Parasitology; 2019, 65, 1
    0043-5163
    Pojawia się w:
    Annals of Parasitology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Simultaneous measurement of evaporating fuel spray using laser induced exciplex fluorescence
    Autorzy:
    Martine--Martínez, S.
    Sánchez-Cruz, F. A
    Rodríguez-Morales, G.
    Riesco-Ávila, J. M.
    Gallegos-Munoz, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/243044.pdf
    Data publikacji:
    2007
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    thermal engine
    direct injection
    liquid phase
    vapour phase
    penetration length
    Opis:
    A macroscopic analysis of experimental measurements offuel sprays penetration on evaporating conditions using the Laser Induced Fluorescence Planar technique is presented. A pure fuel and tracers have been used to determine the two-phase process of the spray by characterizing the wavelengths they display when excited by a laser beam. An experimental set-up based on a single cylinder engine [1, 2], an Nd:YAG laser, an image acquisition system and a system of injection common rail have been used to carry out the experimental processes. Experimental results show the behaviour of the vapour phase and liquid phase in the spray under different thermodynamic conditions and injection parameters in the combustion chamber, particularly the work-fluid density and the injection pressure were observed. The measurement of these parameters is of interest to design the combustion chamber geometry and the piston bowl features of modern direct injection Diesel engines. In particularly, the sschematic diagram and main components of the equipment, cross-sectional view of the cylinder head, experimental layout of PLIEF imaging tests and images, examples of the liquid phase and vapour phase penetration, maximum penetration of the liquid and vapour phase as function of the work fluid density, Maximum penetration of the phase as function of the work fluid density, maximum penetration of the liquid and vapour phase as function of the injection pressure are presented in the paper.
    Źródło:
    Journal of KONES; 2007, 14, 2; 315-326
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Vascular structure of the earliest shark teeth
    Autorzy:
    Martínez-Pérez, C.
    Martín-Lazaro, A.
    Ferrón, H. G.
    Kirstein, M.
    Donoghue, P. C. J.
    Botella, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/139170.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Leonodus
    Celtiberina
    early chondrichthyans
    Lower Devonian
    synchrotron tomography
    vascular system
    ryby chrzęstnoszkieletowe
    ryby chrzęstne
    chrzęstniki
    dolny dewon
    tomografia
    układ naczyniowy
    Opis:
    Here we use synchrotron tomography to characterise dental vasculature in the oldest known tooth-bearing sharks, Leonodus carlsi Mader, 1986 and Celtiberina maderi Wang, 1993. Three dimensional reconstruction of the vascular system and microstructure of both taxa revealed a complex and dense network of canals, including horizontal, ascending and secondary bifurcated canals, as well as histological features consistent with an osteodont histotype. However, L. carlsi and C. maderi also exhibit significant morphological differences, showing Leonodus a typical diplodont tooth morphology with a linguo-labially elongated base, that contrast with Celtiberina’s teeth that show a single conical cusp curved lingually with a week developed flat base mesio-distally extended, perhaps reflecting distant relationship. These data are compatible with a pre-Devonian diversification of the two main tooth types traditionally recognised in Palaeozoic sharks (i.e., “cladodont” vs “diplodont”). Finally, our data demonstrate that existing dental classification schemes based on styles of vascularisation are over-simplified, especially when Palaeozoic taxa are considered.
    Źródło:
    Acta Geologica Polonica; 2018, 68, 3; 457-465
    0001-5709
    Pojawia się w:
    Acta Geologica Polonica
    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:
    Solar generation estimation in electric power systems for prospective frequency control studies
    Autorzy:
    Martínez-García, A. A.
    Torres-Breffe, O. E.
    Vilaragut-Llanes, M.
    Delgado-Fernandez, O.
    Szpytko, J.
    Salgado-Duarte, Y.
    Powiązania:
    https://bibliotekanauki.pl/articles/2172499.pdf
    Data publikacji:
    2022
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    green shipping
    solar power
    electric power systems
    energy storage systems
    photovoltaic power generation
    cuban electrical system
    energy sources
    photo voltage solar generation
    Opis:
    Increasing the presence of non-conventional clean energy sources in Electrical Power Systems (EPS) is a global strategic goal. Particularly, photovoltaic systems are attractive due to their versatility, low maintenance cost, easy installation, noiselessness, etc. However, the integration of photovoltaic systems into EPS increases the necessary regulation actions performed by system generators due to stochastic fluctuations of solar radiation, especially on cloudy days. Even using complex models that consider many variables, solar irradiation and its corresponding photovoltaic power generation are difficult variables to forecast with accuracy in cloudy day scenarios. To address this problem, Energy Storage Systems (BESS) have been proposed as a solution to mitigate the variability of photovoltaic generation, which reduce the need to use traditional spinning reserves and provide auxiliary grid services. The BESS selection required to mitigate photovoltaic generation is directly related to the worst-case daily variability of photovoltaic generation in the short term. This paper proposes a practical estimation of daily perspective photo voltage solar generation curve in Electrical Power Systems.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2022, 16, 2; 211--217
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Techno-Functional and Bioactive Properties and Chemical Composition of Guava, Mamey Sapote, and Passion Fruit Peels
    Autorzy:
    López-Martínez, Leticia X.
    Villegas-Ochoa, Mónica A.
    Domínguez-Avila, J. Abraham
    Yahia, Elhadi M.
    Gonzalez-Aguilar, Gustavo A.
    Powiązania:
    https://bibliotekanauki.pl/articles/24024619.pdf
    Data publikacji:
    2023-11-02
    Wydawca:
    Instytut Rozrodu Zwierząt i Badań Żywności Polskiej Akademii Nauk w Olsztynie
    Tematy:
    tropical fruits
    phenolic profile
    antioxidant potential
    enzyme inhibition
    glucose adsorption capacity
    fat/oil binding capacity
    sodium cholate binding capacity
    Opis:
    Due to their nutritional and sensorial characteristics, tropical fruits like guava, mamey sapote, and passion fruit are regularly incorporated into daily diets. Their by-products, especially peels, are approximately 10 to 35% of their weight and possess an important content of bioactive compounds, such as dietary fiber and phenolics. The nutritional, technological, physio-functional properties and phenolic compound compositions of guava, mamey sapote, and passion fruit peels were studied. Peels had promising techno- and physio-functional characteristics, good dietary fiber contents (45.18-61.42 g/100 g), and phenolic profiles with ferulic acid, gallic acid, p-coumaric, and catechin as the main compounds. Peel powders also showed excellent DPPH radical scavenging activity (125.3–252.4 µmol TE/100 g) and Trolox equivalent antioxidant capacity, TEAC (369.2–656.8 µmol TE/100 g). The α-amylase and lipase inhibitory activity varied from 28.15 to 51.4% and 30.89 to 57.15%, respectively. Higher values of α-glucosidase inhibition capacity were found, ranging from 51.64 to 70.32%. The chemical composition and properties reported in the present work suggest that peel powders of these guava, mamey sapote, and passion fruit could be used as constituents in different foods, such as bakery and meat goods, with beneficial health effects like control of hyperglycemia, improved intestinal function, and control of overweight; however, more studies are necessary for animal models and humans to confirm these bioactivities conclusively.
    Źródło:
    Polish Journal of Food and Nutrition Sciences; 2023, 73, 4; 311-321
    1230-0322
    2083-6007
    Pojawia się w:
    Polish Journal of Food and Nutrition Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Physical characteristics and yield of maize grain in rainfed conditions of high valleys of Mexico
    Właściwości fizyczne i plony ziarna kukurydzy w warunkach deszczowego zasilania w wodę w wysokich dolinach Meksyku
    Autorzy:
    Benitez-Rodriguez, M.G.
    Zepeda-Bautista, R.
    Hernandez-Aguilar, C.
    Virgen-Vergas, J.
    Rojas-Martinez, I.
    Dominguez-Pacheco, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/35536.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Opis:
    In the High Valleys of Mexico maize is produced with varied yield and quality which sometimes do not meet the parameters established by maize flour milling and nixtamalization industry for making tortilla. Therefore, an evaluation of the yields and quality of the grain of maize hybrids (Zea mays L.) and their relationship with the environment was performed. During the spring-summer cycle 2012, the hybrids HP-1, H-52, H-68, HP-2, H-70, Buho, HP-3, H-57E, H-64, Prospecto-1, H-72 and H-66 were evaluated in Texoloc and Benito Juárez (2240 and 2530 masl), Tlaxcala, Mexico in a design of completely randomised blocks with three replications. Grain yield (GY), thousand grain weight (TGW), hectolitric weight (HW), width (WG), length (LG) and thickness (TG) of grains were measured. The results showed highly significant differences (p = 0.01) between locations, hybrids and the interaction locality x hybrids for physical parameters. Among the localities, Texoloc had 86.59% and 24.32% higher GY and TGW compared to Benito Juarez, respectively, while the HW was slightly lower (73.68 kg hL-1). Average yields of the hybrids were 7.7 t ha-1; HP-2, HP-3, H-57E and H-66 hybrids had yields of more than 8 t ha-1 and the lowest yield was noted for H-70. The hybrids had an average HW of 74.30 kg hL-1; HP-1, H-68, H-70, Buho, HP-3 and H-72 had values > 74 kg hL-1, complying with the provisions of the quality standard NMX-FF034/1-SCFI- 2002 for maize destined for the nixtamalization process. The variation in agroclimatic conditions between the localities affected the yield and physical quality of maize grain.
    W Wysokich Dolinach Meksyku produkowana jest kukurydza o zróżnicowanej jakości i poziomie plonowania, która nie zawsze spełnia wymagania przemysłu młynarskiego i nixtamalizacji mąki kukurydzianej do produkcji tortilli. Z tego powodu przeprowadzono badania, mające na celu ocenę plonowania i jakości ziarna hybryd kukurydzy (Zea mays L.) oraz ich zależności od warunków środowiskowych. W sezonie wiosenno-letnim roku 2012 przeprowadzono badania na hybrydach HP-1, H-52, H-68, HP-2, H-70, Buho, HP-3, H-57E, H-64, Prospecto-1, H-72 oraz H-66 w Texoloc i Benito Juárez (2240 i 2530 m n.p.m.), Tlaxcala w Meksyku. Badania przeprowadzono w systemie bloków losowych, w trzech powtórzeniach, dokonując pomiarów plonu ziarna, masy tysiąca ziaren, masy hektolitra ziarna oraz szerokości, długości i grubości ziarna. Stwierdzono istotne różnice (p = 0,01) pomiędzy lokalizacjami, hybrydami oraz interakcjami lokalizacja- hybryda w zakresie parametrów fizycznych ziarna. Wartości plonu i masy 1000 ziaren w Texoloc były wyższe odpowiednio o 86,59% i 24,32% w porównaniu do wartości otrzymanych w Benito Juarez, podczas gdy wartość masa hektolitra była nieznaczenie niższa (73,68 kg·hL-1). Średni plon ziarna hybryd wyniósł 7,7 t·ha-1; plony hybryd HP-2, HP-3, H-57E i H-66 były powyżej 8 t·ha-1, a najniższy plon uzyskano dla hybrydy H-70. Średnia wartość masy hektolitra dla hybryd kukurydzy wyniosła 74,30 kg·hL-1; dla hybryd HP-1, H-68, H-70, Buho, HP-3 i H-72 były > 74 kg·hL-1, spełniając wymagania jakościowe normy NMX-FF034/1-SCFI-2002 dla kukurydzy przeznaczonej do procesu nixtamalizacji. Zróżnicowanie warunków agroklimatycznych pomiędzy badanymi lokalizacjami miało wpływ na plonowanie i charakterystyki fizyczne ziarna kukurydzy.
    Źródło:
    Acta Agrophysica; 2014, 21, 4
    1234-4125
    Pojawia się w:
    Acta Agrophysica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Control of natural mycobiota in maize grains by ultraviolet (UVC) irradiation
    Zwalczanie naturalnych mikobiot w ziarnie kukurydzy za pomocą promieniowania ultrafioletowego (UVC)
    Autorzy:
    Paez, C.L.R.
    Reyes, M.C.P.
    Aguilar, C.H.
    Pacheco, F.A.D.
    Martinez, E.M.
    Orea, A.C.
    Bonilla, J.L.L.
    Powiązania:
    https://bibliotekanauki.pl/articles/36667.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    natural mycobiota
    mycobiota
    fungi
    control
    maize grain
    Zea mays
    ultraviolet irradiation
    Opis:
    The effect of UV-C light as a means of control of natural mycobiota of grains of maize (Zea mays L.) hybrids “San Juan” and ”H-159” (productive cycle, 2009) was investigated. UV-C lamps of 15 W were used and the exposure times applied were 0, 5, 10, 15, 20, 25 and 30 min. The experiment was established in the randomised complete block design with eight and four replicates. The unit pilot was 50 grains. For the determination of mycobiota the agar plate test was used, after disinfection of the grains with sodium hypochlorite diluted to 3% for 1 min. Differences (P ≤ 0.001, P ≤ 0.05) between treatments were found, the best treatments being those of 30 and 10 min, observing reductions of 42.85 and 52.05% in the number of grains infected with Fusarium spp. with respect to control for “San Juan” and “H-159”, respectively. For Fusarium monoliforme it was found that in 30 min there was a reduction of 53.74% for the hybrid “San Juan”, while for H-159 a reduction of 61.7% in 10 minutes was observed. These results show that UV-C radiation may be useful for application as a germicide in future experiments on a wide variety of grains.
    Badano wykorzystanie promieniowania UV-C jako metody zwalczania naturalnych mikobiot ziarna hybryd kukurydzy (Zea mays L.) “San Juan” i ”H-159” (cykl produkcyjny, 2009). Zastosowano lampy UV-C o mocy 15 W, a czasy ekspozycji wynosiły 0, 5, 10, 15, 20, 25 oraz 30 min. Doświadczenie założono metodą kompletnych bloków randomizowanych w ośmiu i czterech powtórzeniach. Jednostka pilotażowa wynosiła 50 ziaren. Dla określenia mikobiot zastosowano test agarowy po uprzedniej dezynfekcji ziarna 3% roztworem podchlorynu sodu przez 1 min. Stwierdzono różnice (P ≤ 0,001, P ≤ 0,05) pomiędzy obiektami doświadczenia. Najlepsze wyniki uzyskano dla czasów ekspozycji 30 i 10 min, uzyskując odpowiednio 42,85 oraz 52,05% redukcję ilości ziaren zakażonych Fusarium spp. dla ziarna hybryd “San Juan” i “H-159” w odniesieniu do kontroli. W odniesieniu do Fusarium monoliforme stwierdzono, że po czasie naświetlania 30 min nastąpiła redukcja o 53,74% dla hybrydy “San Juan”, a dla H-159 stwierdzono spadek o 61,7% po 10 minutach. Te wyniki wykazują, że promieniowanie UV-C może być użyteczne do stosowania jako zabieg zarodnikobójczy w przyszłych doświadczeniach na rożnych rodzajach ziarna.
    Źródło:
    Acta Agrophysica; 2011, 18, 2[193]
    1234-4125
    Pojawia się w:
    Acta Agrophysica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Study on health risk factors as a basis to implement programs that promote a nutritional culture in students of the la Sabana University
    Autorzy:
    Rodriguez, S.
    Martinez, M.
    Segnini, F.
    Cajiao, V.
    Aivasovsky, I.
    Celis, L.G.
    Ayala, J.
    Rozo, C.
    Russi, A.
    Girata, V.
    Almonacid, C.C.
    Powiązania:
    https://bibliotekanauki.pl/articles/2087202.pdf
    Data publikacji:
    2021
    Wydawca:
    Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
    Tematy:
    health promotion
    disease prevention
    obesity
    non-communicable diseases
    healthy lifestyle
    Opis:
    Background. Nowadays the importance of lifestyles in the prevention of type 2 diabetes and the metabolic syndrome has been largely accertained. Objective. The purpose of our work is to implement programs that promote a nutritional culture in adolescents and young adults of the La Sabana University. Methods. The methodology entailed, after the corresponding informed consent, taking measures of the triceps and supraescapular skinfolds, waist circumference, body mass index (BMI), lean mass, and fat mass. Fasting blood samples were also taken to quantify cholesterol, triglycerides, high density lipoprotein (HDL) and low density lipoprotein (LDL). Results. The results obtained show that of the 165 students, 10.3% were underweight, 13.93% were overweight and 0.6% were obese. With regards to gender, 4.8% of the men and 9% of the women were overweight, 3% of the men and 7.2% of the women were underweight, and 0.6% of the women were obese. The blood chemistry showed that 30% had hypercholesterolemia, 18% hypertriglyceridemia, 17% reported low HDL levels and 67% reported high LDL levels. Of all the cases studied, 40% are at risk of a metabolic syndrome. 60% claimed not to practice any physical activity - especially women who reported 44.70%. Conclusions. These findings have allowed us at the institution to implement a culture of healthy habits. The have also allowed us to identify students with risk factors for type 2 diabetes and metabolic syndrome. This is why the cardio- metabolic monitoring and control based on healthy eating and physical activity are important.
    Źródło:
    Roczniki Państwowego Zakładu Higieny; 2021, 72, 1; 89-94
    0035-7715
    Pojawia się w:
    Roczniki Państwowego Zakładu Higieny
    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
    Tytuł:
    Integrated stratigraphy of the Oxfordian global stratotype section and point (GSSP) candidate in the Subalpine Basin (SE France)
    Autorzy:
    Pellenard, P.
    Fortwengler, D.
    Marchand, D.
    Thierry, J.
    Bartolini, A.
    Boulila, S.
    Collin, P.
    Enay, R.
    Galbrun, B.
    Gardin, S.
    Huault, V.
    Huret, E.
    Martinez, M.
    Smith, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/2061042.pdf
    Data publikacji:
    2014
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Callovian-Oxfordian boundary
    biostratigraphy
    ammonites
    dinoflagellate cysts
    calcareous nannofossils
    cyclostratigraphy
    chemostratigraphy
    biostratygrafia
    amonity
    cyklostratygrafia
    Opis:
    An integrated biostratigraphic approach, based on ammonites, calcareous nannofossils, dinoflagellates, combined with sedimentology, carbon-isotope and physical stratigraphy, is proposed for the Subalpine Basin (Thuoux and Saint-Pierre d’Argençon sections). Within the expanded marl deposits of the Terres Noires Fm., the Callovian-Oxfordian boundary is particularly well defined by ammonite taxa from different families (i.e. Cardioceratidae, Oppeliidae, Aspidoceratidae and Perisphinctidae), calcareous nannoplankton (first occurrence of large-sized Stephanolithion bigotii) and dinoflagellate cysts (first occurrence of Wanaea fimbriata). This precise biostratigraphy and diversity of ammonites permit long-range correlations with Boreal and Pacific domains. The exceptional outcrop conditions and continuous sedimentation allow high-resolution chemostratigraphy and cyclostratigraphy to be used. Variations of the δ13C record (1.5‰ increase during the Lamberti Zone), consistent with data from other sections of the Subalpine Basin and with the Paris Basin, provide additional markers to characterise the Callovian-Oxfordian boundary. Promising results from cyclostratigraphy should serve to constrain the duration of biostratigraphic units and thus improve the Late Jurassic Geologic Time Scale. Comparisons are made with the two other candidates for an Oxfordian GSSP, Redcliff Point (UK) and Dubki (Russian Platform). Finally, the advantages of the Subalpine Basin sections support the proposal of Thuoux as a suitable GSSP candidate for the base of the Oxfordian Stage
    Źródło:
    Volumina Jurassica; 2014, 12, 1; 1--44
    1896-7876
    1731-3708
    Pojawia się w:
    Volumina Jurassica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Growth and characterisation of LWIR T2SL on (100)-, (211)- and (311)-oriented GaSb substrates
    Autorzy:
    Lubyshev, Dmitri
    Fastenau, Joel M.
    Kattner, Michael
    Frey, Philip
    Nelson, Scott A.
    Flick, Ryan
    Wu, Ying
    Liu, Amy W. K.
    Szymanski, Dennis E.
    Martinez, Becky
    Furlong, Mark J.
    Dennis, Richard
    Bundas, Jason
    Sundaram, Mani
    Powiązania:
    https://bibliotekanauki.pl/articles/2204213.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Elektryków Polskich
    Tematy:
    focal plane arrays
    InAs/InAsSb
    photodetectors
    long wavelength infrared type-II superlattice
    metamorphic buffers
    superlattice period reduction
    Opis:
    Ga-free InAs/InAsSb type-II superlattice structures grown on GaSb substrates have demonstrated high performance for mid-wave infrared applications. However, realisation of long wavelength infrared photodetectors based on this material system still presents challenges, especially in terms of reduced quantum efficiency. This reduction is due, in part, to the increased type-II superlattice period required to attain longer wavelengths, as thicker periods decrease the wave-function overlap for the spatially separated quantum wells. One way to improve long wavelength infrared performance is to modify the type-II superlattice designs with a shorter superlattice period for a given wavelength, thereby increasing the wave-function overlap and the resulting optical absorption. Long wavelength infrared epitaxial structures with reduced periods have been realised by shifting the lattice constant of the type-II superlattice from GaSb to AlSb. Alternatively, epitaxial growth on substrates with orientations different than the traditional (100) surface presents another way for superlattice period reduction. In this work, the authors evaluate the performance of long wavelength infrared type-II superlattice detectors grown by molecular beam epitaxy using two different approaches to reduce the superlattice period: first, a metamorphic buffer to target the AlSb lattice parameter, and second, structures lattices matched to GaSb using substrates with different orientations. The use of the metamorphic buffer enabled a ~30% reduction in the superlattice period compared to reference baseline structures, maintaining a high quantum efficiency, but with the elevated dark current related to defects generated in the metamorphic buffer. Red-shift in a cut-off wavelength obtained from growths on highindex substrates offers a potential path to improve the infrared photodetector characteristics. Focal plane arrays were fabricated on (100), (311)A- and (211)B-oriented structures to compare the performance of each approach.
    Źródło:
    Opto-Electronics Review; 2023, 31, Special Issue; art. no. e144568
    1230-3402
    Pojawia się w:
    Opto-Electronics Review
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-40 z 40

      Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies