Bibliografías temáticas / Relation n-aire

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Literatura académica sobre el tema "Relation n-aire"

Autor: Grafiati
Publicado: 4 de junio de 2021
Última modificación: 10 de febrero de 2022

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Artículos de revistas sobre el tema "Relation n-aire"

1

Bonetto, Fabienne. "Équilibres multiples et poids de l’histoire: Quelle responsabilité pour la politique économique?" Panoeconomicus 54, no. 2 (2007): 159–84. http://dx.doi.org/10.2298/pan0702159b.

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(francuski) En formalisant une dynamique ? effets de seuil, les mod?les ? ?quilibres multiples enrichissent le paradigme de la croissance endog?ne; l?objectif de cet article est de montrer qu?ils renforcent ?galement la responsabilit? de la politique ?conomique. En effet, d?s lors que les conditions initiales s?lectionnent l??quilibre de long terme, l?histoire de la politique publique d?investissement (au sens large) devient d?terminante. Par ailleurs l?intervention publique peut permettre la sortie de la trappe de pauvret?. Sur la p?riode 1970-1995, nous testons l?hypoth?se d?effets de seuil
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2

Maciá Andreu, María José, Javier Sánchez-Sánchez, José Antonio García Córdoba, and Ana María Gallardo Guerrero. "Análisis de la seguridad y accesibilidad de los espacios deportivos en Educación Secundaria Obligatoria." Cuadernos de Psicología del Deporte 21, no. 1 (2021): 242–57. http://dx.doi.org/10.6018/cpd.395671.

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Las instalaciones deportivas escolares son el marco idóneo donde los alumnos deben de adquirir los hábitos de actividad física, estableciendo el Real Decreto 132/2010, que estas deben de cumplir con las condiciones de seguridad y accesibilidad que determine la legislación vigente. No obstante, varias investigaciones previas alertan del incumplimiento de dichos requisitos, siendo el objetivo del presente estudio el análisis de aquellos relacionados con la seguridad y accesibilidad de los espacios deportivos utilizados para impartir las clases de Educación Física en la etapa de Educación Secunda
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Majima, Yuichi, Kazuhiko Takeuchi, Yukiyoshi Hamaguchi, Atsuhito Morishita, Keisuke Hirata, and Yasuo Sakakura. "Hearing Impairment in Relation to Viscoelasticity of Middle Ear Effusions in Children." Annals of Otology, Rhinology & Laryngology 97, no. 3 (1988): 272–74. http://dx.doi.org/10.1177/000348948809700311.

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Both dynamic viscosity (n′) and elasticity (G′) of middle ear effusion were measured with an oscillating sphere magnetic rheometer and compared with the degree of conductive hearing loss in 65 ears of 40 children. There was a significant correlation between n′ and the magnitude of the air-bone gap at 500 and 1,000 Hz, but there was no significant correlation between G′ and the magnitude of the air-bone gap at 2,000 or 4,000 Hz. No significant correlation was noted between G′ and the magnitude of the air-bone gap at 500,1,000, 2,000, or 4,000 Hz. These results indicate that the n′ of middle ear
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4

Karunaratne, K. C., and C. R. Burn. "Relations between air and surface temperature in discontinuous permafrost terrain near Mayo, Yukon Territory." Canadian Journal of Earth Sciences 41, no. 12 (2004): 1437–51. http://dx.doi.org/10.1139/e04-082.

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The association of site characteristics with the n-factor, a ratio of air to ground surface temperature, was investigated at five sites in the boreal forest near Mayo, Yukon Territory. Permafrost was in equilibrium with surface conditions at three sites, was degrading at another, and was absent from the fifth. Air and near-surface ground temperatures were recorded by data loggers between September 2000 and April 2002, and mean daily temperatures were accumulated to calculate n-factors for the freezing (nf) and thawing (nt) seasons. Air temperature did not vary between the sites, so inter-site
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5

Frankel, Mika, Gabriel Bekö, Michael Timm, Sine Gustavsen, Erik Wind Hansen, and Anne Mette Madsen. "Seasonal Variations of Indoor Microbial Exposures and Their Relation to Temperature, Relative Humidity, and Air Exchange Rate." Applied and Environmental Microbiology 78, no. 23 (2012): 8289–97. http://dx.doi.org/10.1128/aem.02069-12.

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ABSTRACTIndoor microbial exposure has been related to adverse pulmonary health effects. Exposure assessment is not standardized, and various factors may affect the measured exposure. The aim of this study was to investigate the seasonal variation of selected microbial exposures and their associations with temperature, relative humidity, and air exchange rates in Danish homes. Airborne inhalable dust was sampled in five Danish homes throughout the four seasons of 1 year (indoors,n= 127; outdoors,n= 37). Measurements included culturable fungi and bacteria, endotoxin,N-acetyl-beta-d-glucosaminida
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Tremblay, Maryse. "Décisions rendues par le Conseil canadien des relations du travail." Articles 46, no. 1 (2005): 204–14. http://dx.doi.org/10.7202/050651ar.

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Suite à la déréglementation dans le secteur du transport en 1987, Air Canada a voulu s'allier à des transporteurs régionaux en vue de combattre la concurrence. Elle a conclu des ententes avec eux et investi d'importantes sommes en vue de l'élaboration d'un réseau liaison. Face à cette nouvelle situation, l'Association internationale des machinistes et des travailleurs de l'aérospatiale, district n ° 148, agent négociateur actuel d'environ 8 000 employés d'Air Canada, a décidé d'adresser une demande au Conseil afin qu'il déclare qu'Air Canada, Air BC, Air Nova et Air Ontario constituent un empl
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Tseng, C. M., C. S. Liu, and C. Lamborg. "Seasonal changes in gaseous elemental mercury in relation to monsoon cycling over the northern South China Sea." Atmospheric Chemistry and Physics 12, no. 16 (2012): 7341–50. http://dx.doi.org/10.5194/acp-12-7341-2012.

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Abstract. The distribution of gaseous elemental mercury (GEM) was determined in the surface atmosphere of the northern South China Sea (SCS) during 12 SEATS cruises between May 2003 and December 2005. The sampling and analysis of GEM were performed on board ship by using an on-line mercury analyzer (GEMA). Distinct annual patterns were observed for the GEM with a winter maximum of 5.7 ± 0.2 ng m−3 (n = 3) and minimum in summer (2.8 ± 0.2; n = 3), with concentrations elevated 2–3 times global background values. Source tracking through backward air trajectory analysis demonstrated that during th
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8

Ghaffar, Zulkifli Abdul, Salmiah Kasolang, Ahmad Hussein Abdul Hamid, and Mohd Syazwan Firdaus Mat Rashid. "Effect of Dimensionless Numbers on Air Core Diameter of Pressure-Swirl Atomizer." Applied Mechanics and Materials 899 (June 2020): 22–28. http://dx.doi.org/10.4028/www.scientific.net/amm.899.22.

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Air core is an important parameter in pressure swirl atomizer since formation of air core determines the thickness of the discharged liquid sheet and the effective flow area of nozzle discharge. This consequently will affect the coefficient of discharge and the spray angle. This study conducted for the investigation of the relation between dimensionless numbers on the air core diameter. Dimensionless numbers are helpful aid for the quantification of independent parameters involving atomizer design and operating conditions simultaneously. Reynolds number, Re and orifice-to-swirl chamber diamete
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9

LI, Y. T., and R. WONG. "GLOBAL ASYMPTOTICS OF STIELTJES–WIGERT POLYNOMIALS." Analysis and Applications 11, no. 05 (2013): 1350028. http://dx.doi.org/10.1142/s0219530513500280.

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Asymptotic formulas are derived for the Stieltjes–Wigert polynomials Sn(z; q) in the complex plane as the degree n grows to infinity. One formula holds in any disc centered at the origin, and the other holds outside any smaller disc centered at the origin; the two regions together cover the whole plane. In each region, the q-Airy function Aq(z) is used as the approximant. For real x > 1/4, a limiting relation is also established between the q-Airy function Aq(x) and the ordinary Airy function Ai (x) as q → 1.
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10

Tseng, C. M., C. S. Liu, and C. Lamborg. "Seasonal changes in gaseous elemental mercury in relation to monsoon cycling over the Northern South China Sea." Atmospheric Chemistry and Physics Discussions 12, no. 5 (2012): 12203–27. http://dx.doi.org/10.5194/acpd-12-12203-2012.

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Abstract. The distribution of gaseous elemental mercury (GEM) was determined in the surface atmosphere of the Northern South China Sea (SCS) during 12 SEATS cruises between May 2003 and December 2005. The sampling and analysis of GEM were performed on board ship by using an on-line mercury analyzer (GEMA). Distinct annual patterns were observed for the GEM with a winter maximum of 5.7 ± 0.2 ng m−3 (n = 3) and low in summer (2.8 ± 0.2) (n = 3), with concentrations elevated 2 ∼ 3 times global background values. Source tracking through backward trajectory analysis demonstrated air masses during t
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Tesis sobre el tema "Relation n-aire"

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Touhami, Rim. "Construction et évolution d'une ressource termino-ontologique dédiée à la représentation de relations n-aires." Thesis, Montpellier 2, 2014. http://www.theses.fr/2014MON20131.

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Les ontologies sont devenues incontournables pour définir des vocabulaires standardisés ainsi qu'une représentation partagée d'un domaine d'intérêt. La notion de Ressource Termino-Ontologique (RTO) permet d'associer une partie terminologique et/ou linguistique aux ontologies afin d'établir une distinction claire entre la manifestation linguistique (le terme) et la notion qu'elle dénote (le concept). Les RTOs sont actuellement au cœur de nombreuses méthodes, outils et applications de l'Ingénierie des Connaissances (IC), discipline de l'Intelligence Artificielle permettant en particulier de déve
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Minard, Anne-Lyse. "Extraction de relations en domaine de spécialité." Phd thesis, Université Paris Sud - Paris XI, 2012. http://tel.archives-ouvertes.fr/tel-00777749.

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La quantité d'information disponible dans le domaine biomédical ne cesse d'augmenter. Pour que cette information soit facilement utilisable par les experts d'un domaine, il est nécessaire de l'extraire et de la structurer. Pour avoir des données structurées, il convient de détecter les relations existantes entre les entités dans les textes. Nos recherches se sont focalisées sur la question de l'extraction de relations complexes représentant des résultats expérimentaux, et sur la détection et la catégorisation de relations binaires entre des entités biomédicales. Nous nous sommes intéressée aux
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3

Cerf, Loïc. "Fouille Sous Contraintes de Motifs Fermés dans des Relations n-aires Bruitées." Phd thesis, INSA de Lyon, 2010. http://tel.archives-ouvertes.fr/tel-00508534.

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Les jeux de données décrivant des objets par des propriétés Booléennes sont des relations binaires, c'est à dire des matrices 0/1. Dans une telle relation, un ensemble fermé est un sous-ensemble maximal d'objets partageant le même sous-ensemble maximal de propriétés. L'extraction de ces motifs, satisfaisant des contraintes de pertinences définies par l'utilisateur, a été étudiée en profondeur. Néanmoins, beaucoup de jeux de données sont des relations n-aires, c'est à dire des tenseurs 0/1. Réduire leur analyse à deux dimensions revient à en ignorer d'autres qui sont potentiellement intéressant
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Berrahou, Soumia Lilia. "Extraction d'arguments de relations n-aires dans les textes guidée par une RTO de domaine." Thesis, Montpellier, 2015. http://www.theses.fr/2015MONTS019/document.

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Aujourd'hui, la communauté scientifique a l'opportunité de partager des connaissances et d'accéder à de nouvelles informations à travers les documents publiés et stockés dans les bases en ligne du web. Dans ce contexte, la valorisation des données disponibles reste un défi majeur pour permettre aux experts de les réutiliser et les analyser afin de produire de la connaissance du domaine. Pour être valorisées, les données pertinentes doivent être extraites des documents puis structurées. Nos travaux s'inscrivent dans la problématique de la capitalisation des données expérimentales issues des art
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5

Pierre, Manuelle. "Relations propriétés - structure - composition - distribution de mélanges n-aires de normal-alcanes synthétiques et industriels." Vandoeuvre-les-Nancy, INPL, 2002. http://www.theses.fr/2002INPL056N.

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La@connaissance du comportement des alcanes linéaires ou n-alcanes et de leurs alliages modèles est nécessaire pour l'étude de leurs mélanges n-aires ou paraffmes, présents naturellement dans le pétrole entre autres. Ces paraffines sont à l' origine de nombreuses applications qui demandent des propriétés physicochimiques spécifiques. Seule la catégorie des mélanges n-aires de distribution en n-alcanes « normale logarithmique » est étudiée dans ce manuscrit. Des études compositionnelles, structurales et calorimétriques sur des paraffines d'origine industrielle, commerciale et synthétique montre
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6

Nguyen, Van Tien. "Méthode d’extraction d’informations géographiques à des fins d’enrichissement d’une ontologie de domaine." Thesis, Pau, 2012. http://www.theses.fr/2012PAUU3052/document.

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Notre thèse se situe dans le contexte du projet ANR GEONTO qui porte sur la constitution, l’alignement, la comparaison et l’exploitation d’ontologies géographiques hétérogènes. Dans ce contexte, notre objectif est d'extraire automatiquement des termes topographiques à partir des récits de voyage afin d'enrichir une ontologie géographique initialement conçue par l'IGN. La méthode proposée permet de repérer et d'extraire des termes à connotation topographiques contenus dans un texte. Notre méthode est basée sur le repérage automatique de certaines relations linguistiques afin d'annoter ces terme
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7

Searle, Rebecca K. "Art, propaganda and the experience of aerial warfare in Britain during the Second World War." Thesis, University of Sussex, 2011. http://sro.sussex.ac.uk/id/eprint/6919/.

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This thesis examines how artists working for the War Artists' Advisory Committee (WAAC) represented aerial warfare. In contrast to the scholarly attention lavished on wartime films and posters, official war art remains a much neglected aspect of the propaganda war. The few studies that do exist, most notably by Brian Foss, survey the collection as a whole and consider it from an art history perspective. By focusing on the single theme of aviation, a central and defining experience of the Second World War, I embed the WAAC within the economic, social, military and cultural histories of the peri
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Libros sobre el tema "Relation n-aire"

1

The N-factor in natural landscapes: Relations between air and soil-surface temperatures in the Kuparuk River Basin, Northern Alaska. C.W. Thornthwaite Associates, Laboratory of Climatology, 2000.

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Capítulos de libros sobre el tema "Relation n-aire"

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Whiteman, C. David. "Mountain Climates of North America." In Mountain Meteorology. Oxford University Press, 2000. http://dx.doi.org/10.1093/oso/9780195132717.003.0008.

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The basic climatic characteristics of the major mountain ranges in the United States—the Appalachians, the Coast Range, the Alaska Range, the Cascade Range, the Sierra Nevada, and the Rocky Mountains—can be described in terms of the four factors discussed in chapter 1. The mountains of North America extend latitudinally all the way from the Arctic Circle (66.5°N) to the tropic of Cancer (23.5°N) (figure 2.1). There are significant differences in day length and angle of solar radiation over this latitude belt that result in large seasonal and diurnal differences in the weather from north to south. Elevations in the contiguous United States extend from below sea level at Death Valley to over 14,000 ft (4270 m) in the Cascade Range, the Sierra Nevada, and the Rocky Mountains. Several prominent peaks along the Coast Range in Alaska and Canada (e.g., Mount St. Elias and Mount Logan) reach elevations above 18,000 ft (5486 m). Denali (20,320 ft or 6194 m) in the Alaska Range is the highest peak in North America. The highest peak in the Canadian Rockies is Mt. Robson, with an elevation of 12,972 ft (3954 m). The climates of the Coast Range, the Cascade Range, and the Sierra Nevada, all near the Pacific Ocean, are primarily maritime. The Appalachian Mountains of the eastern United States are subject to a maritime influence from the Atlantic Ocean and the Gulf of Mexico, but they are also affected by the prevailing westerly winds that bring continental climatic conditions. Only the climate of the Rocky Mountains, far from both the Pacific and Atlantic Oceans, is primarily continental. Each of the mountain ranges is influenced by regional circulations. For example, the Appalachians are exposed to the warm, moist winds brought northward by the Bermuda-Azores High and to the influence of the Gulf Stream. Similarly, the Coast Range feels the impact of the Pacific High, the Aleutian low, and the Japanese Current. A mountain range, depending on its size, shape, orientation, and location relative to air mass source regions, can itself affect the regional climate by acting as a barrier to regional flows.
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2

María Cerón Bretón, Rosa, Julia Griselda Cerón Bretón, Jonathan Kahl, et al. "Atmospheric N and S Deposition Fluxes in the Metropolitan Area of Monterrey, Mexico and Its Relation with Criteria Air Pollutants and Meteorological Conditions." In Air Pollution - Monitoring, Quantification and Removal of Gases and Particles. IntechOpen, 2019. http://dx.doi.org/10.5772/intechopen.79484.

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"RESULTS AND DISCUSSION The olfactometer readings of the measurements are statistically treated as described in /3/. The results for the plants and air cleaning systems, described in table 1, are given in table 2. system chemical biological plant ABCDE rel. odour raw air 65200 14200 26800 41400 95100 concentration Z50 cleaned air 48300 7360 29500 7930 5100 /odour units/ olfactometric efficiency n 26 % 48 % 81 % 95 % Table 2. Results of measurements, obtained during normal performance, cooker closed. Taking the index R for raw air at the cleaner inlet and the index C for cleaned air at the cleaner outlet, the olfactometric efficiency of the cleaner is defined according to /6/: 50 R In the regarded air cleaning systems, the odoriferous pollutants are first seperated from the raw air by sorption and then decomposed by chemicals or by micro-organisms. As long as this decomposition is not yet completed, the pollutants may desorb and repollute the air, when sorption conditions, i.g. the raw gas concentration, change. By the relation of the difference in raw and cleaned gas concentration to the actual raw gas concentration, a negative efficiency may be calcula­ ted by equation 1, i.g. when a low raw air concentration is preceded by a high one. Table 3 shows peak concentrations and increasing olfactometric efficiency, wherT’in plant A the cooker is opened. rel. odour concentration raw air 627000 Zgg /odour units/ cleaned air 240800 olfactometric efficiency n 62 % Table 3. Results of measurements, obtained in peak load performance when cooker is opened. Although the number of measurements is too small for general assertions, some deductions can be drawn: The results confirm the superiority of the biofilters. And in fact, the number of biofilters in rendering plants increases. Concerning the rel. odour concentration in the cleaned air, a large difference is evident between the presented results and the assertion that a limit value of 100 odour units can be achieved. Two interpretations can be offered:." In Odour Prevention and Control of Organic Sludge and Livestock Farming. CRC Press, 1986. http://dx.doi.org/10.1201/9781482286311-98.

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"Table V: Amounts of odourous constituents in the aerosol phase (M 9 / 9) arid in the settled dust (^ig/g) of swine house air from 1)= HAMMOND et al. (40), 2) = AENGST (33), and 3) = HARTUNG (34). - indicates not reported. quantitative results quantitative results in n g /l aerosol in jug /g settled dust compounds 1) 2 ) 3) CV relative 0.3 62 4 84 9.9 0.2 --- 11 488 40 skatole -- 43.8 54." In Odour Prevention and Control of Organic Sludge and Livestock Farming. CRC Press, 1986. http://dx.doi.org/10.1201/9781482286311-139.

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Actas de conferencias sobre el tema "Relation n-aire"

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Arias, Luis F., Antonio J. Bula Silvera, and Marco E. Sanjuan. "A CFD-Based Robust Design of Operating Conditions for an HVAC System." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-66431.

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HVAC systems are directly related to comfort (human health, productivity, etc.) and energy consumption. Depending on the application and geographical area, they may become a key disruptive and energy starving system. The research discussed in this paper describes a CFD-based approach for robust HVAC system design aimed at reducing variability in the conditioned area by adjusting operating parameters. Since robust design techniques aim at minimum variance (via S/N ratio), the solutions obtained allow the selection of operating parameters leading to more uniform distribution. Three variables wer
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2

Meng, Xiangyu, Wuqiang Long, Yihui Zhou, Mingshu Bi, and Chia-Fon F. Lee. "Effects of N-Butanol Content on the Dual-Fuel Combustion Mode With CNG at Two Engine Speeds." In ASME 2018 Internal Combustion Engine Division Fall Technical Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/icef2018-9595.

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Because of the potential to reduce NOx and PM emissions simultaneously and the utilization of biofuel, diesel/compressed natural gas (CNG) dual-fuel combustion mode with port injection of CNG and direct injection of diesel has been widely studied. While in comparison with conventional diesel combustion mode, the dual-fuel combustion mode generally leads lower thermal efficiency, especially at low and medium load, and higher carbon monoxide (CO) and total hydrocarbons (THC) emissions. In this work, n-butanol was blended with diesel as the pilot fuel to explore the possibility to improve the per
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3

Lassen, Tom, Jose L. Arana, Luis Canada, Jan Henriksen, and Nina K. Holthe. "Crack Growth in High Strength Chain Steel Subjected to Fatigue Loading in a Corrosive Environment." In ASME 2005 24th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2005. http://dx.doi.org/10.1115/omae2005-67242.

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The present article presents the fatigue crack growth behavior of new high strength steels designated R4S grade. Eight Compact Tension (CT) specimens with 25 mm thickness were subjected to constant amplitude loading while exposed to seawater without and with cathodic protection. The Cathodic Potential (CP) was set to −890 mV and −1100 mV relative to an Ag/AgCl reference cell. Rates in air are included as a reference. The crack growth parameters were determined from a linear relation between da/dN and δK for a log-log scale. The derived figures are given in the table below. The figures for dry
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Zhang, Chao, Terrence W. Simon, and Perry Y. Li. "Storage Power and Efficiency Analysis Based on CFD for Air Compressors Used for Compressed Air Energy Storage." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-88985.

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The compression process in a piston cylinder device in a Compressed Air Energy Storage (CAES) system is studied computationally. Twelve different cases featuring four different compression space length-to-radius aspect ratios and three different Reynolds numbers are studied computationally using the commercial CFD code ANSYS FLUENT. The solutions show that for compression with a constant velocity, the compression can be approximated by a polytropic pressure vs. volume relation. The polytropic exponent, n, characterizes the heat transfer and temperature rise of the air being compressed. For the
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Shafiei, M., and A. T. Alpas. "Friction and Wear Behaviour of Nanocrystalline Nickel." In World Tribology Congress III. ASMEDC, 2005. http://dx.doi.org/10.1115/wtc2005-64315.

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The tribological behaviours of conventional nickel with a grain size of 20±5 μm and nanocrystalline (nc) nickel with a grain size of 15±3 nm were compared. A pin-on-disc tribometer was employed for the friction and wear measurements under unlubricated conditions in ambient air with ∼35% relative humidity. As the grain size was decreased to the nanometer size, a reduction of about 18% was observed in the peak value of coefficient of friction (COF), but the steady-state COF remained almost unchanged. Also it was shown that the wear rate of nc nickel was about 82% lower than that of conventional
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Gaspar, Pedro Dinis, L. C. Carrilho Gonc¸alves, and R. A. Pitarma. "Three-Dimensional CFD Modelling and Analysis of the Thermal Entrainment in Open Refrigerated Display Cabinets." In ASME 2008 Heat Transfer Summer Conference collocated with the Fluids Engineering, Energy Sustainability, and 3rd Energy Nanotechnology Conferences. ASMEDC, 2008. http://dx.doi.org/10.1115/ht2008-56421.

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This study presents a three-dimensional Computational Fluid Dynamics (CFD) simulation of the air flow pattern and the temperature distribution in a refrigerated display cabinet. The thermal entrainment is evaluated by the variations of the mass flow rate and thermal power along and across the air curtain considering the numerical predictions of abovementioned properties. The evaluation on the ambient air velocity for the three-dimensional (3D) effects in the pattern of this type of turbulent air flow is obtained. Additionally, it is verified that the longitudinal air flow oscillations and the
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Kestner, Brian K., Jeff S. Schutte, Jonathan C. Gladin, and Dimitri N. Mavris. "Ultra High Bypass Ratio Engine Sizing and Cycle Selection Study for a Subsonic Commercial Aircraft in the N+2 Timeframe." In ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/gt2011-45370.

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This paper presents an engine sizing and cycle selection study of ultra high bypass ratio engines applied to a subsonic commercial aircraft in the N+2 (2020) timeframe. NASA has created the Environmentally Responsible Aviation (ERA) project to serve as a technology transition bridge between fundamental research (TRL 1–4) and potential users (TRL 7). Specifically, ERA is focused on subsonic transport technologies that could reach TRL 6 by 2020 and are capable of integration into an advanced vehicle concept that simultaneously meets the ERA project metrics for noise, emissions, and fuel burn. An
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8

Lungu, M. V., E. Enescu, M. Lucaci, et al. "TRIBOLOGICAL BEHAVIOR OF ARCING CONTACT MATERIALS BASED ON COPPER INFILTRATED TUNGSTEN COMPOSITES." In BALTTRIB. Aleksandras Stulginskis University, 2017. http://dx.doi.org/10.15544/balttrib.2017.07.

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Tungsten copper composites with 70±3 wt.% W, maximum 1.5 wt.% Ni, and balance Cu were achieved as disks (diameter × height of 50×6 mm) by copper infiltration process of tungsten skeletons. Elemental analysis was assessed by WDXRF spectroscopy. Hydrostatic density was evaluated in ethanol. Vickers hardness and Young’s modulus were determined in ambient air by instrumented indentation technique and Oliver&Pharr computation method. Tribological behavior was investigated under 30 N up to 400 m sliding distance and naphthenic mineral oil lubricant with a standard tribometer of b
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Hong, Jeong K., and Thomas P. Forte. "Study on Weld Fatigue Evaluation Under Sour Service Environment Using Battelle Structural Stress Method." In ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/omae2013-10374.

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Risers, pipelines and flowlines for deep water applications are subject to corrosive environments. Especially, in the presence of hydrogen sulfide which makes the field sour, their fatigue performance becomes significantly degraded. In order to quantify the sour degradation effect, a knock-down factor has been introduced. This factor is defined as the fatigue life reduction relative to the in-air fatigue life. Several sets of fatigue test results in sour service environments have been published. These include strip specimens of different sizes, e.g., diameters, wall thicknesses, and arc length
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Rivera, Matthew B., and Randall D. Manteufel. "Exergetic Analysis of a Cross-Flow Microchannel Heat Exchanger for Bleed Air Cooling in Aircraft Gas Turbine Engines." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-37722.

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A current issue with high-pressure-ratio compressors found in aircraft engines is the temperature of the air exiting the compressor. The exiting air is used as coolant for engine components found in later stages of the engine such as first-stage turbine blades, and afterburner walls. A viable option for reducing outlet temperature of high-pressure-ratio compressors is to “bleed-off” a fraction of the air which is cooled in a heat exchanger by rejecting heat into the liquid fuel stream and then use the air for cooling critical components downstream. Bleeding off air from the outlet of the compr
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