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Wyszukujesz frazę "García, M. G." wg kryterium: Autor

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    Tytuł:
    Enterprise logistics, indicators and physical distribution manager
    Autorzy:
    Hernández, J. R.
    García, M. G.
    Hernández, G. G.
    Powiązania:
    https://bibliotekanauki.pl/articles/409334.pdf
    Data publikacji:
    2013
    Wydawca:
    Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
    Tematy:
    enterprise logistics
    indicators
    logistics models
    physical distribution
    Opis:
    Four models were created to study enterprise logistics. From the first one of them, the Logistic Model Based on Positions (LoMoBaP), one of its forty-four charges, the Physical Distribution Manager will be taken, and indicators will be generated to measure its performance, following, the third one of the models, the Logistic Model Based on Indicators of Positions (LoMoBaIPo). The objective of this work is to show how indicators of management can be used in enterprise logistics, following the LoMoBaIPo to apply to the Physical Distribution Manager of the LoMoBaP. To obtain this objective it will be followed the Integrated-Adaptable Methodology for the development of Decision Support System [IAMDSS], which for their flexibility is very useful in other works of investigation, that not necessarily generate a Decision Support System (DSS). As result a set of tables are obtained, that allows to evaluate the Physical distribution Manager across indicators.
    Źródło:
    Research in Logistics & Production; 2013, 3, 1; 5-20
    2083-4942
    2083-4950
    Pojawia się w:
    Research in Logistics & Production
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A eutherian mammal in the latest Cretaceous of Vitrolles, Southern France
    Autorzy:
    Tabuce, R
    Vianey-Liaud, M.
    Garcia, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/22800.pdf
    Data publikacji:
    2004
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    eutherian mammal
    Eutheria
    mammal
    Cretaceous
    Mammalia
    Vitrolles
    France
    paleontology
    Opis:
    In Europe, the fossil record of the eutherian mammals is very scanty for the Late Cretaceous, as only two genera, documented by isolated teeth, are presently recorded in France and in Spain. Both genera, Labes and Lainodon, are considered to be representatives of the “zhelestids”, a paraphyletic unit regarded as being at the origin of Cenozoic ungulates within the Ungulatomorpha clade. We here describe Valentinella vitrollense gen. et sp. nov. from Vitrolles la Plaine (Maastrichtian, southern France). This species, represented by fragmentary remains of lower and upper dentitions, is tentatively assigned to the “zhelestids” according to the hypoconulid−entoconid twinning and the antero−posteriorly short trigonid on m1–3. The occlusal surfaces are obliterated by dental attrition, but Valentinella could be an evolved “zhelestid”, more derived than Labes and Lainodon by its fully compressed trigonid. Valentinella is similar to Gallolestes by other derived characters such as a crushing specialization of the teeth, associated with a probably molariform p4 (or dp4) and slightly reduced m3. The enamel microstructure, showing a radial prismatic pattern combined with a reduced interprismatic matrix, in which cristallites are oriented at about 45° to the prisms axes, appears compatible with the ancestral morphotype for all ungulates; although no synapomorphy can be proposed for the ungulatomorphs.
    Źródło:
    Acta Palaeontologica Polonica; 2004, 49, 3
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Investigation of probability density functions in modeling sample distribution of surface electromyographic (sEMG) signals
    Autorzy:
    Rosa, I. G.
    Garcia, M. A. C.
    Souza, M. N.
    Powiązania:
    https://bibliotekanauki.pl/articles/230062.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    electromyography
    EMG
    surface EMG
    sEMG
    EMG onset detection
    Opis:
    The surface electromyography signal (sEMG) has been typically modeled as a Gaussian random process. However, some authors have reported that the probability density functions (pdfs) associated with the sample distribution of sEMG signal exhibits a more peaked shape than one could expected for a Gaussian pdf. This work aimed to reinvestigate the profile of the sEMG pdfs during five different load levels of isometric contractions of biceps brachii muscle, and compared the adequacy of four different pdfs (Gaussian, Logistic, Cauchy, and Laplacian) in describing the sample distribution of such signal. Experimental pdfs were estimated for each subject and load condition. The comparison between experimental pdfs obtained from sEMG data of forty volunteers and four theoretical pdfs was performed by fitting these functions to its experimental counterpart, and using a mean absolute errors in the assessment of the best fit. On average, the Logistic pdf seemed to be the best one to describe the sample distribution of sEMG signal, although the probabilistic results, considering binomial trials, were significant for both Gaussian and Logistic pdfs.
    Źródło:
    Archives of Control Sciences; 2013, 23, 4; 381-393
    1230-2384
    Pojawia się w:
    Archives of Control Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Earliest laurasian sauropod eggshells
    Autorzy:
    Garcia, G
    Marivaux, L.
    Pelissie, T.
    Vianey-Liaud, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/22561.pdf
    Data publikacji:
    2006
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    megaloolithid egg shell
    Middle Jurassic
    Bajocian
    Quercy area
    France
    Sauropoda
    fossil egg
    paleontology
    Opis:
    Megaloolithid eggshells, known from many Cretaceous deposits since 19th century, are now recognized as remnants of sauropod dinosaurs. Our paper reports the discovery of megaloolithid egg remains from the Middle Jurassic (Bajocian) of the Quercy area (southwestern France). The new Jurassic ootaxon differs from related Cretaceous oospecies in having unusually thin shells. Even Megaloolithus aureliensis, the thinnest Cretaceous megaloolithid from France is three times thicker than the Jurassic eggshells. The cladistic analysis of ootaxa reveals a peculiar point in contradiction with the phylogenetic results based on skeletal remains: the Megaloolithidae belonged to sauropod dinosaurs, which appear to be the sister group of the hadrosaur eggs (Spheroolithidae oofamilly). This result could indicate a significant amount of homoplasy in the evolution of eggshell structures, depending strongly on the incubation environment (particularly for some characters as ornamentation, pore openings and pore canals), the reproductive physiology and the oviduct function. The Bajocian eggshells might represent the earliest offshoot of the Megaloolithidae oofamily and represent the earliest sauropod eggshell record known from the deposits of Laurasia supercontinent.
    Źródło:
    Acta Palaeontologica Polonica; 2006, 51, 1
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Naturalne oczyszczanie estuariów skażonych naturalnymi izotopami promieniotwórczymi pochodzenia antropogenicznego w Hiszpani
    Natural restoration of Spanish estuary historically affected by anthropogenic inputs of natural radionuclides
    Autorzy:
    Villa, M.
    Absi, A.
    Moreno, H.
    Garcia-Tenorio, R.
    Manjon, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/340292.pdf
    Data publikacji:
    2004
    Wydawca:
    Główny Instytut Górnictwa
    Tematy:
    estuarium Odiel
    ochrona środowiska w Hiszpanii
    izotopy naturalne
    Odiel estuary
    environmental protection in Spain
    natural radioisotope
    Źródło:
    Prace Naukowe GIG. Górnictwo i Środowisko / Główny Instytut Górnictwa; 2004, 1; 36-37
    1643-7608
    Pojawia się w:
    Prace Naukowe GIG. Górnictwo i Środowisko / Główny Instytut Górnictwa
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Vulnerabilidad socioeconomica y medioambiental: Valle de Cuautitlan-Texcoco, Estado de Mexico
    Socioeconomic and environmental vulnerability: Valle de Cuautitlan-Texcoco, State of Mexico
    Autorzy:
    Hernandez, M.E.O.
    Valdez Perez, M.E.
    Alvarez Arteaga, G.
    Gonzalez Guerrero, G.
    Garcia Fajardo, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/2077806.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
    Źródło:
    Prace i Studia Geograficzne; 2019, 64, 2; 49-67
    0208-4589
    Pojawia się w:
    Prace i Studia Geograficzne
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Short-term effects of spent coffee grounds on the physical properties of two Mediterranean agricultural soils
    Autorzy:
    Cervera-Mata, A.
    Martin-Garcia, J.M.
    Delgado, R.
    Parraga, J.
    Sanchez-Maranon, M.
    Delgado, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/2082515.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    organic amendment
    soil aggregate stability
    soil water retention
    soil aggregate size
    SEM images
    Opis:
    We investigated the short-term effects of spent coffee grounds on the physical properties of two Mediterranean agricultural soils (Calcisol and Luvisol). The in vitro assay was performed with two spent coffee grounds doses (60 and 240 Mg ha-1), two incubation times (30 and 60 days) and two modalities: with and without lettuce seedlings (Lactuca sativa var. longifolia). Spent coffee grounds addition increased water retention at -33 and -1500 kPa, and decreased bulk density and plant-available water content. With spent coffee grounds, the percentage of macroaggregates increased, the percentage of meso- and microaggregates decreased and the structural stability of all types of aggregates increased. The stereomicroscopy images showed that: the structural aggregates were rounded, the porosity increased by 316%, the structure was ordered into smaller aggregates, the incorporation of spent coffee grounds particles could occur in intraped cracks and spent coffee grounds particles could act as a binding agent. Scanning electron microscopy also showed that spent coffee grounds particles interacted with mineral particles and integrated into soil structure; moreover, fungal hyphae also developed on many spent coffee grounds particles. If spent coffee grounds effects are compared with those described in the literature for other organic amendments, the same trend was observed in most of the soil physical properties although with a different intensity, principally with regard to structural stability.
    Źródło:
    International Agrophysics; 2019, 33, 2; 205-216
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Development of a methodology for improving the tribological properties in die processing using laser surface texturing
    Metoda polepszenia własności tribologicznych narzędzi do wykrawania przez zastosowanie laserowej obróbki powierzchni
    Autorzy:
    García, G. T. G.
    Garza, M. T. V.
    Garza, A. Q.
    Zuazua, D. V.
    Cortés, D. M.
    Tellez, A. M.
    Zamarrón, R. B.
    Powiązania:
    https://bibliotekanauki.pl/articles/971354.pdf
    Data publikacji:
    2014
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    laser surface texturing
    laser ablation
    microcavities
    lubrication
    friction
    die wear
    deep drawing tool
    teksturowanie laserowe
    ablacja laserowa
    mikrowgłębienia
    smarowanie
    tarcie
    zużycie narzędzi
    narzędzia do ciągnięcia
    Opis:
    The purposes of this investigation were to measure the positive effects in the lubrication through the application of micro textures made by laser (Laser Surface Texturing). Different types of micro textured patterns were studied, which vary in the quantity of micro cavities, micro cavity diameters, depths of micro cavities, and surface density attacked by micro cavities. It was found that, compared with plain steel surfaces, laser texturing significantly reduces friction and wear.
    Propozycją niniejszej pracy jest zbadanie pozytywnego efektu smarowania poprzez wykonanie za pomocą obróbki laserowej mikrowgłębień na powierzchniach kontaktowych. Przestudiowano różne typy mikrowgłębień i różne wzory tekstury, liczbę mikrowgłębień oraz ich wymiary, jak również ich dystrybucję na powierzchni. Efektem tej obróbki było zredukowanie tarcia i zużycia w porównaniu z płaskimi powierzchniami stali.
    Źródło:
    Tribologia; 2014, 3; 47-58
    0208-7774
    Pojawia się w:
    Tribologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Youngest agamid lizards from Western Europe (Sierra de Quibas, Spain, late Early Pleistocene)
    Autorzy:
    Blain, H.-A.
    Bailon, S.
    Agusti, J.
    Pinero-Garcia, P.
    Lozano-Fernandez, I.
    Sevilla, P.
    Lopez-Garcia, J.M.
    Sanchez, G.R.
    Mancheno, M.A.
    Powiązania:
    https://bibliotekanauki.pl/articles/21138.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Opis:
    Here we report a new Early Pleistocene record of agamid lizards (Agamidae indet.) from the Spanish locality of Quibas (ca. 1.3–1.0 Ma), which represents the latest evidence of the family in Western Europe. Up to now, the family Agamidae was considered to have disappeared in this region at 1.8 Ma. This new record implies the survival of agamid lizards for a large part of the Early Pleistocene in the southernmost Iberian Peninsula, probably because of favourable climatic and environmental conditions. Consequently, the formerly detected Pliocene / Pleistocene boundary is no longer recognisable in the evolution of the herpetological assemblages in Western Europe.
    Źródło:
    Acta Palaeontologica Polonica; 2014, 59, 4
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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