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    Wyświetlanie 1-26 z 26
    Tytuł:
    Online Robotic Labs In Software Engineering Courses
    Zdalne laboratoria robotyki w zajęciach inżynierii oprogramowania
    Autorzy:
    Gonzalez, F.
    Zalewski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/266592.pdf
    Data publikacji:
    2014
    Wydawca:
    Politechnika Gdańska. Wydział Elektrotechniki i Automatyki
    Tematy:
    online labs
    robotics labs
    STEM curriculum
    software engineering education
    laboratorium robotów
    inżynieria oprogramowania
    robotyka
    Opis:
    Florida Gulf Coast University, College of Engineering has developed over recent years a sophisticated undergraduate software engineering lab for use in embedded systems and related team project courses. A number of teaching modules have been developed, with emphasis on security, complex systems, and webbased access. The objective of the current project is to focus on developing a lab specific to robotics applications, with online access, which can be used across the undergraduate curricula, especially in software engineering courses. Creating an Online Robotics Lab takes advantage of the existing equipment, software and curricular modules to expand them for broader use, and help develop a more advanced full-scale operation across the curriculum. Developing such a lab will have an impact on advancing teaching in disciplines such as Sciences, Technology, Engineering and Math (STEM).
    W ciągu ostatnich kilku lat, na Wydziale Inżynierii Florida Gulf Coast University, powstało bardzo złożone laboratorium inżynierii oprogramowania przenaczone do zajęć z systemów wbudowanych i innych kursów uwzględniających projekty zespołowe. Opracowane zostały odpowiednie moduły nauczania, na tematy związane z bezpieczeństwem, systemami złożonymi, i dostępem przez Internet. Celem obecnego projektu jest utworzenie laboratorium specyficznego dla potrzeb robotyki, z dostępem przez Internet, które moża wykorzystywać w innych dziedzinach, a wszczególności w inżynierii oprogramowania. Proces tworzenia laboratorium opiera się na istniejących urządzeniach, oprogramowaniu i modułach nauczania, z roszerzeniem ich w kierunku zastosowania w kursach z innych dziedzin, poza inżynierią. Laboratorium takie będzie miało wpływ na postęp w nauczaniu w takich dyscyplinach, jak nauki ścisłe, technologia, inżynieria i matematyka. W artykule opisano proces tworzenia i użycia modułów z wykorzystaniem ośmiu urządzeńrobotów, począwszy od prostych robotów Lego, do skomplikowanych pojazdów sterowanych zdalnie przez Internet.
    Źródło:
    Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej; 2014, 37; 15-18
    1425-5766
    2353-1290
    Pojawia się w:
    Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Senior lab projects for teaching the Internet of Things in a Software Engineering program
    Laboratoria dla „Internetu rzeczy” w programie Inżynierii Oprogramowania
    Autorzy:
    Gonzalez, F.
    Guo, D.
    Nowicki, A.
    Zalewski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/268134.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Gdańska. Wydział Elektrotechniki i Automatyki
    Tematy:
    internet of things (IoT)
    cloud computing
    engineering education
    software engineering education
    online labs
    Internet rzeczy
    przetwarzanie w chmurze
    kształcenie inżynierów
    inżynieria oprogramowania
    zdalne laboratorium
    Opis:
    This paper addresses student labolatories for courses related to the Internet of Things (IoT) in an undergraduate Software Engineering program. It revews the concept of the IoT, first, then discusses benefits of IoT in education, especially in engineering, and finally presents examples of projects, reviewing some more fundamental concepts of introducing such labs. Specific examples of IoT projects include software development for: a robotic arm accessed through AWS, GPS tracker with Sparkfun data stream services, online health monitoring with a smartwatch and Google Cluod, and remote relay access from a phone with MQTT service.
    W artykule omówiono zagadnienia laboratoriów studenckich dla kursów związanych z „Internetem rzeczy”, w programie studiów Inżynierii Oprogramowania. Przedstawiono koncepcję Internetu rzeczy i omówiono korzyści płynące z użycia tej technologii w kształceniu, szczególnie w dyscyplinach inżynierskich, dyskutując podstawowe problemy z tym związane. W szczególności, opisano praktyczne rozwiązania problemów laboratoryjnych, z użyciem robota, systemu GPS, inteligentnego zegarka i zdalnego przekaźnika, oraz przekazywania odpowiednich danych do przetwarzanuia w chmurze.
    Źródło:
    Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej; 2017, 52; 31-36
    1425-5766
    2353-1290
    Pojawia się w:
    Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A note on bounded harmonic functions over homogeneous trees
    Autorzy:
    Gonzalez-Vieli, F. J.
    Powiązania:
    https://bibliotekanauki.pl/articles/254752.pdf
    Data publikacji:
    2013
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    bounded harmonic function
    homogenous tree
    Opis:
    Let Τk be the homogeneous tree of degree k ≥ 3. J. M. Cohen and F. Colonna have proved that if ƒ is a bounded harmonic function on Τk, then [formula]for any adjacent vertices x and y in Τk. We give here a new and very simple proof of this inequality.
    Źródło:
    Opuscula Mathematica; 2013, 33, 4; 697-700
    1232-9274
    2300-6919
    Pojawia się w:
    Opuscula Mathematica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Aerobiological study in east - central iberian peninsula: pollen diversity and dynamics for major taxa
    Autorzy:
    Perez-Badia, R.
    Rapp, A.
    Vaquero, C.
    Fernandez-Gonzalez, F.
    Powiązania:
    https://bibliotekanauki.pl/articles/50584.pdf
    Data publikacji:
    2011
    Wydawca:
    Instytut Medycyny Wsi
    Źródło:
    Annals of Agricultural and Environmental Medicine; 2011, 18, 1
    1232-1966
    Pojawia się w:
    Annals of Agricultural and Environmental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Estimation of composite load model parameters using improved particle swarm optimization
    Autorzy:
    Regulski, P.
    Gonzalez-Longatt, F.
    Terzija, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/410557.pdf
    Data publikacji:
    2012
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    load modeling
    parameter estimation
    particle swarm optimization (PSO)
    composite load model
    Opis:
    Power system loads are one of its crucial elements to be modeled in stability studies. However their static and dynamic characteristics are very often unknown and usually changing in time (daily, weekly, monthly and seasonal variations). Taking this into account, a measurement-based approach for determining the load characteristics seems to be the best practice, as it updates the parameters of a load model directly from the system measurements. To achieve this, a Parameter Estimation tool is required, so a common approach is to incorporate the standard Nonlinear Least Squares, or Genetic Algorithms, as a method providing more global capabilities. In this paper a new solution is proposed -an Improved Particle Swarm Optimization method. This method is an Artificial Intelligence type technique similar to Genetic Algorithms, but easier for implementation and also computationally more efficient. The paper provides results of several experiments proving that the proposed method can achieve higher accuracy and show better generalization capabilities than the Nonlinear Least Squares method. The computer simulations were carried out using a one-bus and an IEEE 39-bus test system.
    Źródło:
    Present Problems of Power System Control; 2012, 2; 41-51
    2084-2201
    Pojawia się w:
    Present Problems of Power System Control
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    First insight into the diversity of snakes in the Pleistocene of Cuba
    Autorzy:
    Syromyatnikova, E.
    Aranda, E.
    Gonzalez, S.F.
    Powiązania:
    https://bibliotekanauki.pl/articles/2082334.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    Reptilia
    Serpentes
    insular biodiversity
    extinction
    Pleistocene
    Cuba
    Opis:
    The herpetofaunal biodiversity of West Indies suffered a significant change during the last few million years that is well documented for some squamate reptilies (lizards). However, almost nothing is known about past biodiversity of snakes, which are active predators and important component of terrestrial ecosystems. Here we describe the fossil remains of snakes (Reptilia: Serpentes) from the late Pleistocene of El Abrón Cave, Cuba. This is the first representative assemblage of fossil snakes from Cuba. It allows us to evaluate the taxonomic diversity of snakes in the Pleistocene of the island for the first time. The material includes eight taxa from the four snake families: cf. Cubatyphlops (Typhlopidae), Tropidophis melanurus, Tropidophis sp., Cubophis cf. cantherigerus, Arrhyton sp., cf. Caraiba andreae, Dipsadidae indet., and Natricidae indet. (Natricidae). Two (Dipsadidae indet. and Natricidae indet.) are not known in the modern fauna of Cuba. The assemblage from El Abrón Cave shows that ophidian Pleistocene assemblage was different from modern snake fauna of Cuba and was probably more diverse at genus level than it is now. Most of taxa revealed in El Abrón Cave were not previously known in the fossil record.
    Źródło:
    Acta Palaeontologica Polonica; 2021, 66, 2; 395-407
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    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:
    Lower Tithonian microconchiate simoceratins from eastern Mexico: Taxonomy, biostratigraphy, and palaeobiogeography
    Autorzy:
    Villasenor, A.
    Oloriz, F.
    Gonzalez-Arreola, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/22008.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    biostratigraphy
    paleobiogeography
    paleontology
    taxonomy
    Mexico
    Eastern Mexico
    Ammonitina
    Pseudovolanoceras
    Tithonian
    Upper Jurassic
    Jurassic
    deposit
    Pseudovolanoceras aesinense
    Pseudovolanoceras aesinense chignahuapense
    new subspecies
    ammonite
    microconchiate simoceratin
    simoceratin
    Opis:
    The precise record of simoceratins sampled bed−by−bed is first reported from Mexico (Mazatepec area in Puebla, central−eastern Mexico), as well as the existence of lappeted peristomes in these ammonites. Both Pseudovolanoceras aesinense and the subspecies Pseudovolanoceras aesinense chignahuapense are shown to occur among Mexican simoceratins. The European species and the Mexican subspecies share the same stratigraphic range in the studied sections, yet they differ in ephebic sculpture. Ecological adaptation to neritic seas corresponding to eastern Mexico areas is interpreted, forcing phenotypic deviation with geographic significance, i.e., subspeciation. The new subspecies would indicate stratigraphic horizons within the Semiformiceras semiforme/Haploceras verruciferum Chronozone in the Mediterranean Tethys. A revision of contemporaneous simoceratins in the Americas is founded on a comparative analysis with respect to the European species P. aesinense.
    Źródło:
    Acta Palaeontologica Polonica; 2011, 56, 1
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A Statistical Approach To Prediction Of The CMM Drift Behaviour Using A Calibrated Mechanical Artefact
    Autorzy:
    Cuesta, E.
    Alvarez, B.
    Sanchez-Lasheras, F.
    Gonzalez-Madruga, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/221090.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    multivariate regression models
    coordinate measuring machine
    drift behaviour
    calibration
    Opis:
    This paper presents a multivariate regression predictive model of drift on the Coordinate Measuring Machine (CMM) behaviour. Evaluation tests on a CMM with a multi-step gauge were carried out following an extended version of an ISO evaluation procedure with a periodicity of at least once a week and during more than five months. This test procedure consists in measuring the gauge for several range volumes, spatial locations, distances and repetitions. The procedure, environment conditions and even the gauge have been kept invariables, so a massive measurement dataset was collected over time under high repeatability conditions. A multivariate regression analysis has revealed the main parameters that could affect the CMM behaviour, and then detected a trend on the CMM performance drift. A performance model that considers both the size of the measured dimension and the elapsed time since the last CMM calibration has been developed. This model can predict the CMM performance and measurement reliability over time and also can estimate an optimized period between calibrations for a specific measurement length or accuracy level.
    Źródło:
    Metrology and Measurement Systems; 2015, 22, 3; 417-428
    0860-8229
    Pojawia się w:
    Metrology and Measurement Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Improving the intensification and diversification balance of the tabu solution for the Robust Capacitated International Sourcing problem (RoCIS)
    Autorzy:
    Huacuja, H. J. F.
    González-Velarde, J. R.
    Valdez, G. C.
    Powiązania:
    https://bibliotekanauki.pl/articles/385145.pdf
    Data publikacji:
    2010
    Wydawca:
    Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
    Tematy:
    RoCis
    heuristic approach
    optimization
    initial solution
    tabu search
    memory strategies
    Opis:
    This paper addresses the robust capacitated international sourcing problem (RoCIS), which consists of selecting a subset of suppliers with finite capacity, from an available set of potential suppliers internationally located. This problem was introduced by González-Velarde and Laguna in [1], where they propose a deterministic solution method based on tabu search memory strategies. The pro cess consists of three steps: build an initial solution, create a neighborhood of promising solutions and perform a local search in the neighborhood. In this work we propose improving the construction of the initial solution, the cons truction of the neighborhood, the local search, and the intensification and diversification balance. Experimental evidence shows that the improved tabu solution with diver sification outperforms the best solutions reported for six of the instances considered, increases by 18% the number of best solutions found and reduces by 44% the deviation of the best solution found, respect to the best algorithm reported.
    Źródło:
    Journal of Automation Mobile Robotics and Intelligent Systems; 2010, 4, 4; 64-73
    1897-8649
    2080-2145
    Pojawia się w:
    Journal of Automation Mobile Robotics and Intelligent Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effects of silicon and calcium application on growth, yield and fruit quality parameters of cucumber established in a sodic soil
    Autorzy:
    González-Terán, G.E.
    Gómez-Merino, F.C.
    Trejo-Téllez, L.I.
    Powiązania:
    https://bibliotekanauki.pl/articles/12714269.pdf
    Data publikacji:
    2020
    Wydawca:
    Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
    Opis:
    Soil salinity is a growing problem that affects crop quality. Cucumber is a vegetable eaten fresh, with great worldwide demand, making its chemical and physical characteristics important. In the present work, the effects of foliar application of silicon (Si: 0 and 2 mM), calcium (Ca: 0 and 2 mM), and the combination of both (Si + Ca: 0 + 0 mM, 2 + 0 mM, 0 + 2 mM and 2 + 2 mM) on dry matter of leaves and stems, yield and fruit quality of cucumbers grown in a sodic soil were studied. Treatments did not affect dry biomass, yield and product size. The obtained results show that applying foliar Ca increases total soluble solids in comparison to the control. Foliar Si application significantly increased fruit firmness in the end towards the peduncle. Moreover, foliar Ca application increased the fruit hue angle (intense green), while foliar Si application increased chroma (dark green), both significantly regarding the control. The individual applications of Si and Ca were proven to differentially improve the fruit quality parameters of cucumber in sodic soil conditions.
    Źródło:
    Acta Scientiarum Polonorum. Hortorum Cultus; 2020, 19, 3; 149-158
    1644-0692
    Pojawia się w:
    Acta Scientiarum Polonorum. Hortorum Cultus
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Prediction of biological sensors appearance with ARIMA models as a tool for Integrated Pest Management protocols
    Autorzy:
    Fernandez-Gonzalez, M.
    Ramos-Valcarcel, D.
    Aira, M.J.
    Rodriguez-Rajo, F.J.
    Powiązania:
    https://bibliotekanauki.pl/articles/50204.pdf
    Data publikacji:
    2016
    Wydawca:
    Instytut Medycyny Wsi
    Źródło:
    Annals of Agricultural and Environmental Medicine; 2016, 23, 1
    1232-1966
    Pojawia się w:
    Annals of Agricultural and Environmental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Numerical and Physical Parametric Analysis of a SEN with Flow Conditioners in Slab Continuous Casting Mold
    Autorzy:
    Gonzalez-Trejo, J.
    Real-Ramirez, C. A.
    Miranda-Tello, R.
    Rivera-Perez, F.
    Cervantes-de-la-Torre, F.
    Powiązania:
    https://bibliotekanauki.pl/articles/351515.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    submerged entry nozzle
    fluid-flow modifiers
    continuous casting of steel
    mold flow patterns
    turbulence
    Opis:
    Some of the most recent technologies that improves the performance in continuous casting process has installed infrastructure outside the mold to modify the natural fluid flow pattern to obtain a quasi-steady condition and promote a uniform solidified shell of steel. The submerged entry nozzle distributes the liquid steel in the mold and can be used to obtain the flow symmetry condition with external geometry improvements. The fluid flow conditioners were located near the outlet ports of the nozzle. The aim of the modifiers is to impose a pseudo symmetric pattern in the upper zone of the mold by inhibiting the fluid exchange between the zones created by conditioners. This work evaluates the effect of the thickness and length of the fluid-flow modifiers on the overall performance of the submerged nozzle. These properties of the fluid-flow modifiers were normalized based on two of the geometric dimensions of the standard equipment. Numerical and physical simulations suggest that the flow modifier should be as thin as possible.
    Źródło:
    Archives of Metallurgy and Materials; 2017, 62, 2A; 927-946
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An Optimized Propagation Model based on Measurement Data for Indoor Environments
    Autorzy:
    Morocho-Yaguana, M.
    Ludeňa-González, P.
    Sandoval, F.
    Poma-Vélez, B.
    Erreyes-Dota, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/308451.pdf
    Data publikacji:
    2018
    Wydawca:
    Instytut Łączności - Państwowy Instytut Badawczy
    Tematy:
    indoor
    ITU model
    log-distance model
    loss measurement
    one-slope model
    path loss
    propagation measurements
    propagation models
    radio propagation
    Opis:
    Propagation is an essential factor ensuring good coverage of wireless communications systems. Propagation models are used to predict losses in the path between transmitter and receiver nodes. They are usually defined for general conditions. Therefore, their results are not always adapted to the behavior of real signals in a specific environment. The main goal of this work is to propose a new model adjusting the loss coefficients based on empirical data, which can be applied in an indoor university campus environment. The Oneslope, Log-distance and ITU models are described to provide a mathematical base. An extensive measurement campaign is performed based on a strict methodology considering different cases in typical indoor scenarios. New loss parameter values are defined to adjust the mathematical model to the behavior of real signals in the campus environment. The experimental results show that the model proposed offers an attenuation average error of 2.5% with respect to the losses measured. In addition, comparison of the proposed model with existing solutions shows that it decreases the average error significantly for all scenarios under evaluation.
    Źródło:
    Journal of Telecommunications and Information Technology; 2018, 2; 69-75
    1509-4553
    1899-8852
    Pojawia się w:
    Journal of Telecommunications and Information Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    New findings of airborne fungal spores in the atmosphere of Havana, Cuba, using aerobiological non-viable methodology
    Autorzy:
    Almaguer-Chaves, M.
    Aira, M.J.
    Rojas, T.-I.
    Fernandez-Gonzalez, M.
    Rodriguez-Rajo, F.-J.
    Powiązania:
    https://bibliotekanauki.pl/articles/2081740.pdf
    Data publikacji:
    2018
    Wydawca:
    Instytut Medycyny Wsi
    Tematy:
    airborne fungal spores
    non-viable methodology
    Havana
    Cuba
    Opis:
    Introduction. Although airborne fungal diversity in tropical countries is known to be considerable, aerobiological research to-date has identified only a part of the fungal mycobiota that may have an impact both on human health and on crops. Previous studies in Havana city identified only 30 genera and 5 spore types; therefore,new research is required in these latitudes. This study sought to investigate airborne spore levels in Havana, with a view to learning more about local fungal diversity and assessing its influence in quantitative terms. Materials and method. A Hirst type volumetric sampler was located on the rooftop of a building 35 meters above ground level, in a busy area of the city. Sampling was carried out continuously (operating 24hours/day), at 10 L per minute during the year 2015. The fungal spores were collected on a Melinex tape coated with a 2% silicone solution. The results were expressed as spores per cubic meter (spores/m3) of air when to referring to daily values, and spores count if referring to annual value. Results. Fourteen new genera were identified in the course of volumetric sampling: six produce ascospores and eight conidia. Morphobiometric characteristics were noted for all genera, and airborne concentrations were calculated. These genera accounted for 56.4% of relative fungal frequency over the study year. Conclusions. Many airbone fungi are primary causes of both respiratory disease and crop damage. These new findings constitute a major contribution to Cuba’s aerobiological database.
    Źródło:
    Annals of Agricultural and Environmental Medicine; 2018, 25, 2; 349-359
    1232-1966
    Pojawia się w:
    Annals of Agricultural and Environmental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Thirty-four identifiable airborne fungal spores in Havana, Cuba
    Autorzy:
    Almaguer, M.
    Aira, M.-J.
    Rodriguez-Rajo, F.J.
    Fernandez-Gonzalez, M.
    Rojas-Flores, T.I.
    Powiązania:
    https://bibliotekanauki.pl/articles/51658.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:
    The Nodal Wear Model (NWM) as an alternative to understand the mechanisms of flow and wear in the blast furnace crucible
    Węzłowy Model Zużywania (NWM) jako alternatywa zrozumienia mechanizmów przepływu i zużycia wyłożenia garu wielkiego pieca
    Autorzy:
    Gonzalez, R.
    Barbes, M.
    Verdeja, L. F.
    Ruiz-Bustinza, I.
    Mochon, J.
    Duarte, R. M.
    Karbowniczek, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/353343.pdf
    Data publikacji:
    2010
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    piec hutniczy
    palenisko
    zużycie
    martwy koks
    blast furnace
    hearth
    wear
    dead man
    Opis:
    The presence of thermocouples in the lining of crucibles has become a general practice in the new construction of blast furnaces. The Nodal Wear Model (NWM) has also emerged as an instrument that, while using experimental data, obtains nodal variables whose experimental measurement is not possible: global coefficient of pig-iron/refractory heat transfer hpig-iron/liningg-i and nodal temperature Ti. Starting from these nodal properties, the wear of the lining or the growth of scabs may be controlled, independently of the mechanisms responsible for them. In the same way, the properties and influence zone of the dead man in the hearth of the blast furnace may be calculated, along with those regions where the fluid is allowed to move without any other restrictions than the ones of the corresponding viscous flow (raceway hearth region).
    Obecność termopar w wyłożeniu garu wielkiego pieca, stało się powszechną praktyką w jego nowoczesnych konstrukcjach. Węzłowy Model Zużycia, staje się narzędziem, które korzystając z danych doświadczalnych, uzyskuje zmienne węzłowe, dla których pomiar bezpośredni jest niemożliwy: całkowity współczynnik przenikania ciepła między surówką, a wyłożeniem ogniotrwałym hsurwka/wyoenieg-i oraz temperaturę węzłową Ti. Począwszy od tych własności węzła, zużycie wyłożenia lub powiększanie się narostów, może być kontrolowane, niezależnie od mechanizmów odpowiedzialnych za ich zachodzenie. W ten sam sposób, mogą zostać wyliczone własności i wpływu martwego koksu w garze wielkiego pieca, wzdłuż obszarów, gdzie ciecz może poruszać się bez ograniczeń innych niż te odpowiadające przepływowi lepkiemu (strefa na poziomie dysz w garze pieca).
    Źródło:
    Archives of Metallurgy and Materials; 2010, 55, 4; 1113-1123
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Relationships between eye fluids and blood values after exercise in lidia cattle: mineral parameters
    Autorzy:
    González-Montaña, J.R.
    Escalera-Valente, F.
    Lomillos, J.M.
    Alonso, A.J.
    Gaudioso, V.
    Alonso, M.E.
    Powiązania:
    https://bibliotekanauki.pl/articles/2087493.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    aqueous humour
    vitreous humour
    minerals parameters
    intraocular fluids
    blood
    metabolism
    Lidia cattle
    Źródło:
    Polish Journal of Veterinary Sciences; 2019, 3; 445-455
    1505-1773
    Pojawia się w:
    Polish Journal of Veterinary Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Forecasting ARIMA models for atmospheric vineyard pathogens in Galicia and Northern Portugal: Botrytis cinerea spores
    Autorzy:
    Fernandez-Gonzalez, M.
    Rodriguez-Rajo, F.J.
    Jato, V.
    Aira, M.J.
    Ribeiro, H.
    Oliveira, M.
    Abreu, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/49793.pdf
    Data publikacji:
    2012
    Wydawca:
    Instytut Medycyny Wsi
    Opis:
    Botrytis cinerea is the cause of the most common disease in the Galician and Portuguese vineyards. Knowledge of the spore levels in the atmosphere of vineyards is a tool for forecasting models of the concentration of spores in order to adjust the phytosanitary treatments to real risk infection periods. The presented study was conducted in two vineyards, one located in Cenlle (Spain) and other in Amares (Portugal), from 2005-2007. A volumetric trap, model Lanzoni VPPS-2000, was used for the aerobiological study. Phenological observations were conducted on 20 vines of three grape varieties in Cenlle (Treixadura, Godello and Loureira) and in Amares (Trajadura, Loureiro and Pedernã), by using the BBCH scale. The highest total spore concentrations during the grapevine cycle were recorded in 2007 in both locations (Cenlle:16,145 spores; Amares:1,858 spores), and the lowest, in 2005 in Cenlle (1,700 spores) and in Amares (800 spores) in 2006. In Cenlle, the best adjusted model was an ARIMA (0,2,2), including the relative humidity four days earlier, while in Amares there was an ARIMA (1,2,3), considering the relative humidity three days earlier and rainfall two days earlier. The t-test showed no significant difference between observed and predicted data by the model.
    Źródło:
    Annals of Agricultural and Environmental Medicine; 2012, 19, 2
    1232-1966
    Pojawia się w:
    Annals of Agricultural and Environmental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Conservation of the genetic diversity of local corn (Zea mays L.) in the Yucatan Peninsula, Mexico
    Autorzy:
    González-Valdivia, Noel A.
    Cetzal-Ix, William
    Basu, Saikat Kumar
    Pérez-Ramírez, Isidra
    Martínez-Puc, Jesús F.
    Zandi, Peiman
    Powiązania:
    https://bibliotekanauki.pl/articles/2182157.pdf
    Data publikacji:
    2016-12-31
    Wydawca:
    Uniwersytet Pedagogiczny im. Komisji Edukacji Narodowej w Krakowie
    Tematy:
    Campeche
    conservation
    corn
    cultivation
    diversity genetic
    Mexico
    Yucatán
    Opis:
    The production of native corn at regional level is greatly limited by the seasonality of rainfall, availability of adequate lands, poor fertility status of the soil, high input costs and constraints of resources of the local corn growers and/or producers. The challenges of reduced cultivable area give very little opportunity for increasing production area in a sustainable manner; it is important to note that the soil recover their fertility status through crop rotation and prolonged rest period (> 25 years) known as sequential agroforestry system or "milpa". During 2015, corn collections were performed in the Yucatan Peninsula, Mexico that included five races from the Yucatan (in localities of Nohacal and Peto) and Campeche (Calakmul, Suc-Tuc, Sakabchen, I Chek) states. The races identified were: 1) Nal-Tel (gallito), 2) Dzit Bacal, 3) Xnu’uc Naal (Tuxpeño), 4) Palomero and, 5) Tabloncillo. The local varieties, Pix Cristo (Knees of Christ), Eh Hu (Purple maize) and Chac Chu’ub (Chac´s Blood or Red maize), are included within the Tuxpeño (Xnu´uk Naal) race. The land race of corn that is in imminent danger of extinction is Nal-Tel, characterized by its precocity and ability to escape periods of low rainfall; is important to rescue it for adoption to the practices of local and regional production. The adaptation of this race as a germplasm is important due to its resilience to climate change itself. Palomero, Tabloncillo, Pix Cristo, Chac Chu´ub and Eh Hu can thus be used in traditional food industry, to preserve the traditional knowledge and to provide opportunities for additional income for the local, rural communities. Yellow Palomero and Tabloncillo races are new records of germplasm for the region; and hence essential is exchanging their seeds among local producers and growers.
    Źródło:
    Annales Universitatis Paedagogicae Cracoviensis Studia Naturae; 2016, 1; 71-84
    2543-8832
    2545-0999
    Pojawia się w:
    Annales Universitatis Paedagogicae Cracoviensis Studia Naturae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mechanisms knowledge of the flow and wear in the blast furnace crucible with the nodal wear model
    Modelowanie mechanizmów przepływu i zużycia w trzonie wielkiego pieca przy użyciu modelu siatek węzłowych
    Autorzy:
    Gonzalez, R.
    Barbes, M. A.
    Verdeja, L. F.
    Ruiz-Bustinza, I.
    Mochón, J.
    Duarte, M. R.
    Karbowniczek, M.
    Migas, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/263907.pdf
    Data publikacji:
    2011
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    wielki piec
    trzon
    zużycie
    strefa martwa koksu
    blast furnace
    hearth
    wear
    dead man
    Opis:
    The presence of thermocouples in the lining of crucibles has become a general practice in the new construction of blast furnaces. The Nodal Wear Model (NWM) has also emerged as an instrument that, while using experimental data, obtains nodal variables whose experimental measurement is not possible: global coefficient of pig-iron/refractory heat transfer [formula] and nodal temperature Ti. Starting from these nodal properties, the wear of the lining or the growth of scabs may be controlled, independently of the mechanisms responsible for them. In the same way, the properties and influence zone of the dead man in the hearth of the blast furnace may be calculated, along with those regions where the fluid is allowed to move without any other restrictions than the ones of the corresponding viscous flow (raceway hearth region).
    Istnienie termopar w wyłożeniu ogniotrwałym wielkiego pieca stało się ogólnie przyjętą praktyką w nowoczesnych jego konstrukcjach. Węzłowe modele zużywania wyłożenia (NWM) pojawiły się także jako instrument umożliwiający, przy użyciu danych eksperymentalnych, uzyskanie wartości węzłów dla zmiennych, w przypadku których nie jest możliwy pomiar praktyczny: globalny współczynnik wymiany ciepła surówka-wyłożenie ogniotrwałe [wzór] oraz węzłowa temperatura Ti. Przy wykorzystaniu właściwości siatek węzłowych zużycie wyłożenia wielkiego pieca lub narostów na niej może być kontrolowane niezależnie od mechanizmów odpowiedzialnych za nie. W ten sam sposób mogą być obliczone własności i wpływ strefy martwej koksu w trzonie wielkiego pieca. Podobną metodykę można stosować w tych strefach, gdzie możliwy jest przepływ ciekły bez żadnych ograniczeń z wyjątkiem tych, które wynikają z przepływu lepkiego (strefa na poziomie dysz wielkiego pieca).
    Źródło:
    Metallurgy and Foundry Engineering; 2011, 37, 2; 123-132
    1230-2325
    2300-8377
    Pojawia się w:
    Metallurgy and Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Orchid diversity at Cuetzalan del Progreso, Puebla, Mexico – anthropogenic threats and potential for organic production for conservation purposes
    Autorzy:
    Alvarez-Mora, Raúl
    Cetzal-Ix, William
    Basu, Saikat Kumar
    Noguera-Savelli, Eliana
    González-Valdivia, Noel A.
    Martínez-Puc, Jesús F.
    Zandi, Peiman
    Możdżeń, Katarzyna
    Powiązania:
    https://bibliotekanauki.pl/articles/2182149.pdf
    Data publikacji:
    2016-12-31
    Wydawca:
    Uniwersytet Pedagogiczny im. Komisji Edukacji Narodowej w Krakowie
    Tematy:
    anthropogenic factors
    biodiversity
    conservation
    Cuetzalan del Progreso
    Mexico
    orchid
    Opis:
    The orchid flora of Puebla State represents 16% of the total species present in Mexico demonstrating rich biodiversity. However, several municipalities in the north-east of Puebla area are located within a conservation priority area for its tropical montane cloud forest and tropical rain forest due to decision of the Comisión Nacional para el Conocimiento y el Uso de la Biodiversidad of Mexico. We have recorded 93 species from Cuetzalan del Progreso with 25 new records of the flora of the state. These new dditions thereby currently increase the orchid flora of Puebla to 197 species. Of these, six species are classified as threatened, three as subject to special protection by the NOM-059-SEMARNAT-2010 and one classified as least concern by the International Union for the Conservation of Nature. Moreover, we recorded 37 species illegally traded in “tianguis” (informal markets) of Cuetzalan del Progreso. The orchid diversity in the fragmented forests can be harnessed in establishing a model for the sustainable management and to promote conservation action f species at some level of threat and in the restoration of areas with fragmented forests. Unfortunately, the orchid diversity has been seriously endangered by several anthropogenic factors. We have also recorded significant anthropogenic threats in this municipality for the long-term existence of the local orchid members and species with potential for commercial production. A viable approach will be to allow the introduction of in vitro germination program and organic production of orchids by local and fringe communities; this will reduce inhabitants’ dependence on the scarce forest resources, lessen illegal harvesting and trafficking of wild orchids, and at the same time provide economic development for the local communities.
    Źródło:
    Annales Universitatis Paedagogicae Cracoviensis Studia Naturae; 2016, 1; 7-23
    2543-8832
    2545-0999
    Pojawia się w:
    Annales Universitatis Paedagogicae Cracoviensis Studia Naturae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Changes in masa and tortillas obtained from maize irradiated and nixtamalized with nejayote
    Autorzy:
    Valderrama-Bravo, C.
    Domínguez-Pacheco, F.A.
    Hernandez-Aguilar, C.
    Sanchez-Hernandez, G.
    Perez-Reyes, C.
    Contreras-Padilla, M.
    Rojas-Gonzalez, T.
    Oaxaca-Luna, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/24252.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Źródło:
    International Agrophysics; 2018, 32, 3
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ecology and population dynamics of yeast starter cultures in cocoa beans fermentation
    Autorzy:
    García Gonzalez, Estefania
    Mendez Orejuela, John H.
    Sierra Banguera, Jhon S.
    Chamorro Moreno, Daniela I.
    Ordoñez Narvaez, Ginna A.
    Ochoa Muñoz, Andrés F.
    Montalvo Rodriguez, Constanza
    Powiązania:
    https://bibliotekanauki.pl/articles/16648147.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czasopisma i Monografie PAN
    Tematy:
    fermentation
    cocoa
    yeast
    fine flavor cocoa
    Saccharomyces
    Hanseniaspora.
    Opis:
    This study aimed to investigate controlled fermentation of cocoa beans with selected yeasts as starter cultures via integrating microbiological, biochemical, and chromatographic analyses. The steps involved in the yeast starter culture test were of the following order: 1) counting, isolation, purification, and biochemical identification of yeasts, 2) selection of ethanol-producing yeasts, 3) selection of thermotolerant yeasts, and 4) evaluation of physicochemical parameters of the selected yeasts in controlled fermentation of cocoa (F1 - Saccharomyces ssp. and Hanseniaspora ssp. and F2 - spontaneous fermentation - control). A total of 32 yeasts were isolated from three sampling points (M1, M2, and M3), which comprised 50% Candida ssp., 9.4% Rhodotorula ssp., 18.8% Saccharomyces ssp., and 18.8% Hanseniaspora ssp. The yeasts identified as Saccharomyces ssp. (n = 6) were subjected to the ethanol production test. Saccharomyces spp. CLV09 showed the highest concentration of ethanol in the simulated cocoa medium (3.5% v/v). Hanseniaspora spp. CVL20 and CVL19 strains showed the highest thermotolerance at 42°C after 72 h of growth. The starter cultures with Saccharomyces ssp. and Hanseniaspora ssp. showed a similar growth rate of the mesophilic aerobic population in both F1 and F2. Fermentation of the starter culture showed a higher production of organic acids than spontaneous fermentation (F2). Thus, Saccharomyces ssp. and Hanseniaspora ssp. can be used as a starter culture in cocoa fermentation.
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2022, 103, 4; 343-353
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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