Bibliographies thématiques / Acclività

Littérature scientifique sur le sujet « Acclività »

Auteur : Grafiati
Publié le 10 mars 2023
Mis à jour le 11 mars 2023

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Consultez les listes thématiques d’articles de revues, de livres, de thèses, de rapports de conférences et d’autres sources académiques sur le sujet « Acclività ».

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Articles de revues sur le sujet "Acclività"

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Martínez Mendoza, Juan. « Diferencias osteológicas del neurocráneo de Menticirrhus ophicephalus “mismis” y Larimus acclivis “bereche” (Sciaenidae) ». Arnaldoa 25, no 1 (15 mars 2018) : 227–40. http://dx.doi.org/10.22497/arnaldoa.251.25113.

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Hughes, M., C. Coyle et R. R. Rubite. « A REVISION OF BEGONIA SECTION DIPLOCLINIUM (BEGONIACEAE) ON THE PHILIPPINE ISLAND OF PALAWAN, INCLUDING FIVE NEW SPECIES ». Edinburgh Journal of Botany 67, no 1 (9 février 2010) : 123–40. http://dx.doi.org/10.1017/s0960428609990266.

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Begonia sect. Diploclinium (Begoniaceae) is revised for the Philippine island of Palawan. Five new species, Begonia acclivis C.Coyle, B. cleopatrae C.Coyle, B. gutierrezii C.Coyle, B. rubiteae M.Hughes and B. wilkiei C.Coyle, are described, giving a total of 10 species, nine of which are endemic. Of the 10 species, two are considered to belong to the IUCN category Endangered, five are Vulnerable, two are Least Concern and one is Data Deficient.
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Iqbal, Sadia Sagar, Tasawer Shahzad Ahmad, Arshad Bashir, Ali Bahadar et Farzana Siddique. « Tuning the Ablation, Thermal and Mechanical Characteristics of Phenolic Resin Reinforced EPDM Ultra-High Temperature Insulation ». Key Engineering Materials 875 (février 2021) : 88–95. http://dx.doi.org/10.4028/www.scientific.net/kem.875.88.

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The present research reports the influences of variant phenolic resin concentrations on the thermo-mechanical and ablation characteristics of ethylene propylene diene monomer (EPDM) elastomer. Backface temperature acclivity (BTA), charring rates, and insulation indexes were executed for the fabricated composite specimens. It was noticed that BTA was enhanced while linear/radial/mass ablation rates were significantly diminished with increasing concentration of phenolic resin (PR) in base matrix (elastomeric polymer). The composite (30wt%PR/EPDM) has 25% high thermal endurance compared to virgin EPDM composite. Thermal conductivity was increased with increasing PR to EPDM ratio. PR incorporation has remarkably enhanced the ultimate tensile strength of the EPDM elastomer. An efficient improvement in elastomeric hardness was also observed with increasing PR contents in EPDM matrix. Scanning Electron Microscopy (SEM) results showed the porosity generation and polymer melting during ablation.
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Asghar, Muhammad, Nadeem Iqbal, Sadia Sagar Iqbal, Mohsin Farooq et Tahir Jamil. « Ablation and thermo-mechanical tailoring of EPDM rubber using carbon fibers ». Journal of Polymer Engineering 36, no 7 (1 septembre 2016) : 713–22. http://dx.doi.org/10.1515/polyeng-2015-0337.

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Abstract Carbon fibers (CFs) are incorporated into ethylene propylene diene monomer (EPDM) rubber to fabricate charring elastomeric ablative composites for ultrahigh temperature applications. Ablation characteristics of the ablative composites were evaluated using ASTM E285-08. Variant content incorporation of short CFs in the basic composite formulation reduced the backface temperature acclivity and the ablation rate rose up to 48% and 78%, correspondingly. Thermal stability and endothermic capability were improved with increasing short fiber contents in the rubber matrix. Experimental thermal conductivity measurement results elucidate that thermal conductivity reduces 60% at 473 K with 6 wt% addition of the fibers. A remarkable improvement was scrutinized in the tensile strength and rubber hardness with increasing fiber to matrix ratio. Scanning electron microscopy (SEM)/energy dispersive X-ray spectroscopy (EDS) analysis of the composite specimens revealed the uniform dispersion of CFs within the host matrix, formation of voids during ablation, char-reinforcement interaction and composition of the charred ablators and the impregnated fibers.
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Arêdes-dos-Reis, Maxmira de Souza, Monique Silva Costa, Cristiano Yuji Sasada-Sato et Cátia Henriques Callado. « Seasonal, multi-scale spatial and slope-oriented effects in cambial dynamics : an evaluation of sampling methods in Cedrela odorata (Meliaceae) in an Atlantic Forest area ». Botany 94, no 10 (octobre 2016) : 993–99. http://dx.doi.org/10.1139/cjb-2016-0082.

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Studies of cambial dynamics have been employed to investigate the growth behavior of trees. In these investigations, however, spatial variation in cambial rhythm within the stem is usually not taken into account. This study aims to evaluate the contribution of multiple sampling scales on the cambial dynamics of Cedrela odorata L. (Meliaceae) in different seasons. The effects of slope orientation were also tested. Samples were processed and analyzed with standard plant histology techniques. Data from multiple sampling scales were analyzed with nested ANOVA for each season, and the total variance was partitioned according to the fraction related to each scale. The main sources of variability were associated with the scale of tree and scales smaller than 1 cm. Radial growth was not significantly related to acclivity orientation. Thus, to obtain samples that represent total variability in cambial dynamics, it is preferable to increase the number of sampled trees; to take multiple samples from a few millimetres apart from each other, or to assess multiple histological sections. Samples on scales greater than a few centimetres apart should not be given priority.
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IMABAYASHI, HIROMICHI, KAZUHIRO ISHIKAWA et AKIO GO. « Larval Settlement of a Penaeid Shrimp Metapenaeopsis acclivis in Suo-Nada, the Seto Inland Sea ». BENTHOS RESEARCH 1993, no 45 (1993) : 11–18. http://dx.doi.org/10.5179/benthos1990.1993.45_11.

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Gentilucci, Matteo, Marco Materazzi et Gilberto Pambianchi. « Statistical Analysis of Landslide Susceptibility, Macerata Province (Central Italy) ». Hydrology 8, no 1 (7 janvier 2021) : 5. http://dx.doi.org/10.3390/hydrology8010005.

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Every year, institutions spend a large amount of resources to solve emergencies generated by hydrogeological instability. The identification of areas potentially subject to hydrogeological risks could allow for more effective prevention. Therefore, the main aim of this research was to assess the susceptibility of territories where no instability phenomena have ever been detected. In order to obtain this type of result, statistical assessments of the problem cannot be ignored. In this case, it was chosen to analyse the susceptibility to landslide using a flexible method that is attracting great interest in the international scientific community, namely the Weight of Evidence (WoE). This model-building procedure, for calculating landslide susceptibility, used Geographic Information Systems (GIS) software by means of mathematical operations between rasters and took into account parameters such as geology, acclivity, land use, average annual precipitation and extreme precipitation events. Thus, this innovative research links landslide susceptibility with triggering factors such as extreme precipitation. The resulting map showed a low weight of precipitation in identifying the areas most susceptible to landslides, although all the parameters included contributed to a more accurate estimate, which is necessary to preserve human life, buildings, heritage and any productive activity.
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Gentilucci, Matteo, Marco Materazzi et Gilberto Pambianchi. « Statistical Analysis of Landslide Susceptibility, Macerata Province (Central Italy) ». Hydrology 8, no 1 (7 janvier 2021) : 5. http://dx.doi.org/10.3390/hydrology8010005.

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Every year, institutions spend a large amount of resources to solve emergencies generated by hydrogeological instability. The identification of areas potentially subject to hydrogeological risks could allow for more effective prevention. Therefore, the main aim of this research was to assess the susceptibility of territories where no instability phenomena have ever been detected. In order to obtain this type of result, statistical assessments of the problem cannot be ignored. In this case, it was chosen to analyse the susceptibility to landslide using a flexible method that is attracting great interest in the international scientific community, namely the Weight of Evidence (WoE). This model-building procedure, for calculating landslide susceptibility, used Geographic Information Systems (GIS) software by means of mathematical operations between rasters and took into account parameters such as geology, acclivity, land use, average annual precipitation and extreme precipitation events. Thus, this innovative research links landslide susceptibility with triggering factors such as extreme precipitation. The resulting map showed a low weight of precipitation in identifying the areas most susceptible to landslides, although all the parameters included contributed to a more accurate estimate, which is necessary to preserve human life, buildings, heritage and any productive activity.
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Taliari, Jean Donizete Silveira, Rogério Rodrigo Ramos, Alessandra de Lourdes Ballaris, Matheus Alexandre da Silva Taliari et Egberto Munin. « Blood glucose kinetics during concentric and eccentric muscle contractions ». Bioscience Journal 38 (23 septembre 2022) : e38078. http://dx.doi.org/10.14393/bj-v38n0a2022-60463.

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Studies comparing the two classes of stimuli (concentric and eccentric) have shown differences in the improvement of cardiovascular, metabolic, and muscle strength gain. This is an experimental, quantitative, and prospective study that aimed to verify the effect of eccentric exercise on glycolytic consumption and kinetics. The blood glucose kinetics of 17 male subjects was evaluated during a treadmill exercise with a 10% declined floor and velocity that required a 60% metabolic activity of VO2max, for 30 minutes. Seventy-two hours later, the same subjects exercised on the treadmill with a 10% inclined floor and 60% VO2max, for 30 minutes. To quantify glucose, blood samples were collected before the exercise, every three minutes along the 30 minutes of physical activity, and five and 10 minutes after finishing the exercise. For the downward slope, there was a homogeneous group behavior for blood glucose dynamics during the exercise, which was characterized by a monotonic decrease of glucose levels until reaching a minimum value at experimental times between 20 and 30 min, followed by a progressive recovery toward initial values. For the acclivity condition, blood glucose dynamics did not follow such a homogeneous behavior. A set of different types of dynamics could be identified. Experimental data showed that the type of dynamics could be predicted, to some extent, by the basal blood glucose level of subjects. The type of floor slope (upward or downward) directly affected glycolytic consumption and kinetics for the individuals analyzed.
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Maqsood, Hira. « An Ecological Study : The Causations, Consequences, and Combatants of Malnourishment in Sub Sahara Africa ». Pakistan Journal of Public Health 10, no 1 (26 octobre 2020) : 39–47. http://dx.doi.org/10.32413/pjph.v10i1.549.

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Background: The study expatiates major causation and consequences of malnourishment in Sub Sahara Africa and concurrently explores the efficacy of salubrious nutriment effectual in complying health requisite of indigent populaces. Methods: An ecological study circumscribes about underprivilege African territories enduring deplorable conditions and health-related challenges. Selects twenty States resides in Sub Sahara Africa, employing nonrandom nonproportional quota sampling, each reveal critically on considered causations and consequences of malnourishment. Followingly delve efficacy of combatant of malnourishment, by contrasting five North African Territories, each chief producer of healthy nutriment, against the rest of Africa. All considered variables characterizing causation, consequences, and combatant assessed inconsideration to malnourishment. Study articulated considering primary and secondary sources available online. Perform statistical analysis using SPSS 16. Complete compilation phase lasts for four months extend from June to September 2019. Results: Populace internal and external mal exposure characterizing undernutrition proportion, adulterated water consumption, poor sanitation, ambience aerial perils, vehement UV-radiations, noise nuisance, constitute major causation of malnourishment in children under age 5. Subsequently, high proportion of childhood stunting or wasting determines negative correlation with adulthood intelligence quotient, productivity, and healthy life span. Whereas nations enrich in healthy nutriments embracing dates, honey or olive oil considerably precludes malnourishment, encounter relatively low incidence of stunting and wasting. Conclusion: Insalubrious internal and external mal exposures considerably reprehensible for continuous acclivity in prevalence of malnourishment. Increase incidence in early ages impel health diminution in later phases of life. Incorporation of healthy regimen likely to halt grueling trends and execute populace healthy profiles.
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Thèses sur le sujet "Acclività"

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Tognaccini, Sofia. « Geomorfologia applicata all'individuazione dello stato di attività dei movimenti gravitativi e analisi di suscettibilità da frana in diversi contesti geologico-strutturali ». Doctoral thesis, 2019. http://hdl.handle.net/2158/1198143.

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Le analisi contenute nel presente elaborato di tesi costituiscono uno strumento conoscitivo di base, indispensabile per tutte quelle zone in cui i movimenti franosi o altre dinamiche inducono pericolosità geologica interferendo con l’ambiente e le strutture antropiche, consentendo una buona conoscenza, anche di territori con estensione piuttosto ampia, a costi molto ridotti.Tutte le procedure e software utilizzati nel presente lavoro sono disponibili open-source e fruibili gratuitamente online. Il rilevamento geomorfologico è stato condotto in tre aree di studio, caratterizzate da contesti geologico-strutturali diversi tra loro. Tale rilevamento, coadiuvato da un'analisi multitemporale condotta mediante fotointerpretazione, si è rivelato molto utile per individuare i limiti dei movimenti franosi, il loro grado di attività e la loro evoluzione nel tempo. Le analisi statistiche hanno consentito di individuare la variabilità dei parametri predisponenti nelle diverse aree di studio e di indicare quali classi, tra i parametri, sono caratterizzate dal maggior numero di frane e, dunque, più prone al franamento. Gli studi di suscettibilità effettuati per le diverse aree di studio con la metodologia di statistica bivariata mostrano un’elevata percentuale di aree in frana ricadenti all’interno delle aree predette a più elevata suscettibilità e possono essere applicati sia a piccola sia a grande scala, per diverse tipologie di frane. Infine, i risultati ottenuti tramite il modello prevalentemente deterministico basato sul modulo r.slope.stability (http://www.slopestability.org/) sono piuttosto attendibili e rappresentativi della situazione reale, come dimostrato dai risultati della validazione tramite la stima di AROC. L’opportunità di utilizzare software GIS, non solo per la manipolazione dei dati ma anche per il loro aggiornamento e per l’esecuzione automatica delle procedure bivariate (ad es. attraverso il codice in linguaggio Python creato durante questo lavoro di tesi), incrementa notevolmente la possibilità di estendere queste analisi a nuove e diverse aree di studio, con costi pressoché nulli.
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Livres sur le sujet "Acclività"

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Underwood, Jack, et Ella Frears. Passivity, Electricity, Acclivity. Goldsmiths, University London, 2018.

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Store, King Of. Christmas Acclivity Book for Girls : A Fun Kid Activity Book Game for Learning, Coloring, Dot to Dot, Mazes, Word Search and More ! Independently Published, 2019.

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Chapitres de livres sur le sujet "Acclività"

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« acclivity ». Dans Dictionary Geotechnical Engineering/Wörterbuch GeoTechnik, 7. Berlin, Heidelberg : Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41714-6_10258.

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