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Academic literature on the topic 'Resistance usure'
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Journal articles on the topic "Resistance usure"
Basas, Carrie Griffin. "ADVOCACY FATIGUE: SELF-CARE, PROTEST, AND EDUCATIONAL EQUITY." Windsor Yearbook of Access to Justice 32, no. 2 (October 1, 2015): 37. http://dx.doi.org/10.22329/wyaj.v32i2.4681.
Full textReilly, James. "CHINA'S HISTORY ACTIVISTS AND THE WAR OF RESISTANCE AGAINST JAPAN: History in the Making." Asian Survey 44, no. 2 (March 2004): 276–94. http://dx.doi.org/10.1525/as.2004.44.2.276.
Full textMei, Guang Yi, Ke Hua Zhang, and Jin Fu Ding. "Study on the Effect of Ultrasonic Surface Rolling Processing Parameters on the Surface Roughness of Q345 Hydraulic Prop." Advanced Materials Research 102-104 (March 2010): 591–94. http://dx.doi.org/10.4028/www.scientific.net/amr.102-104.591.
Full textHawkes, David. "Shakespeare and Derivatives." Critical Survey 30, no. 3 (September 1, 2018): 83–96. http://dx.doi.org/10.3167/cs.2018.300307.
Full textMichielsen, Marc. "The Missing link: the Views of the Second International School of Thought on Development, Underdevelopment and Dependency." Itinerario 14, no. 2 (July 1990): 59–70. http://dx.doi.org/10.1017/s0165115300010007.
Full textWesthelle, Vítor. "The significance of Luther for the crises of today: On the occasion of the 500 years of the Reformation." Revista Pistis Praxis 9, no. 2 (August 30, 2017): 427. http://dx.doi.org/10.7213/2175-1838.09.002.ds03.
Full textZhang, Jun, Jinzhong Wang, Charles Wood, Dongsheng Xu, and Luwen Zhang. "Kaposi's Sarcoma-Associated Herpesvirus/Human Herpesvirus 8 Replication and Transcription Activator Regulates Viral and Cellular Genes via Interferon-Stimulated Response Elements." Journal of Virology 79, no. 9 (May 1, 2005): 5640–52. http://dx.doi.org/10.1128/jvi.79.9.5640-5652.2005.
Full text"Book Reviews." Journal of Economic Literature 55, no. 4 (December 1, 2017): 1623–24. http://dx.doi.org/10.1257/jel.55.4.1615.r3.
Full textWardle, Ben, and Lee Harrop. "I See Red: Truth-Telling about Colonial Courthouses and Indigenous Dispossession Through Art." Law, Culture and the Humanities, July 15, 2020, 174387212093724. http://dx.doi.org/10.1177/1743872120937244.
Full textBorruso, Silvano. "Economic Law, Ethics, and Paradox Is There a Way Out?" American Review of Political Economy 3, no. 1 (March 1, 2005). http://dx.doi.org/10.38024/arpe.82.
Full textDissertations / Theses on the topic "Resistance usure"
Perrinet, Olivier. "Analyse de l'endurance de contacts électriques Sn, Au et Ag soumis à des sollicitations complexes de fretting usure." Thesis, Ecully, Ecole centrale de Lyon, 2014. http://www.theses.fr/2014ECDL0009.
Full textIn automotive applications and in other areas (energy, aviation, etc.), the number of electronic devices has increased significantly in recent last decades. Systems and people securities are based on the quality of electrical connectors. However, submitted to vibrations (car engine, environment) micro-displacements are induced at the interface. The problem of electrical contact is mainly due to the impairment of low current conduction (5mA) in interfaces subjected to repetitive sliding displacement generating a well-known fretting wear phenomenon. Fretting wear solicitation appears as a process of very detrimental degradation. Besides surface deterioration, this process leads an increase of the electrical contact resistance and a possible loss of the electrical signal. This is particularly the case of the low level connectors which are very sensitive to electrical contact fluctuations. To remedy, connections actors develop new deposits to limit the use of noble ones such as gold. The objectives of this thesis are to establish a "table of use" coatings based on specific solicitations and define a methodology for the selection of deposits to optimize the lifetime connectors. The study covers different aspects such as the mechanical loading conditions influence, the thickness deposits influence, the type of deposit (noble, non-noble, doped), the displacement amplitude (microdisplacement and large displacement) and the electrical endurance formalization (energetic approach and power law)
Woimbee, Valérie. "Étude de la carburation par un hydrocarbure à la pression atmosphérique d'aciers à 5% de chrome." Vandoeuvre-les-Nancy, INPL, 1998. http://docnum.univ-lorraine.fr/public/INPL_T_1998_WOIMBEE_V.pdf.
Full textLaporte, Julie. "Etude et modélisation de l'endurance électrique de micro-contacts soumis à des sollicitations de fretting-usure : caractérisation de nouveaux dépôts base Argent." Thesis, Lyon, 2016. http://www.theses.fr/2016LYSEC034/document.
Full textAdvanced instrumentation in mechanical systems (aeronautical, automobile etc…) goes hand in hand with an ever increased use of electrical connectors. However, the unfavorable operating environment (chemical attack and vibrational loads) causes more or less severe degradation of electrical contacts, which in turn perturbs their electrical conductivity. Gold plating is usually applied in electrical contacts in order to limit damage and to ensure connector stability. However, economic constraints and the high cost of gold require cheaper alternatives. Amongst conductive metals, silver is the best candidate. Hence, the purpose of this PhD project is to investigate the electrical response and the degradation of silver coatings when subjected to fretting loadings. The study is divided into three main research axes. The first axis consists in realizing a complete study of a homogeneous silver/silver contact in order to identify the degradation mechanisms that are responsible for the electrical failure, both in fretting loadings and reciprocating sliding. It was possible to formalize a predictive model, using an energy density approach, allowing to extrapolate the lifetime of the contact as a function of various loading parameters. A complementary study also showed the impact of a corrosive sulfur atmosphere on these electric contacts. As part of the second research axis, an investigation of the tribological and electrical behavior of novel silver-based materials, solely synthesized as a gold replacement, was performed. The analysis of these homogeneous contacts allowed to explain the degradation mechanism and the mechanical behavior of these contacts when subjected to a wet environment. In the last research axis a study was led on the same silver-based materials but in a heterogenous configuration against a gold coating in order to identify the tribological and electrical behavior of these contacts when composed by materials with similar or opposite properties
Saker, Abdelhamid. "Étude des produits de pulvérisation cathodique magnétron et de nitruration a basse température des aciers inoxydables austénitiques dans des plasmas réactifs contenant de l'azote." Vandoeuvre-les-Nancy, INPL, 1993. http://www.theses.fr/1993INPL017N.
Full textLagrange, Laurent. "Caractérisation microstructurale et tribologique de revêtements composites à matrice métallique élaborés sous faisceau laser par projection coaxiale de poudre." Vandoeuvre-les-Nancy, INPL, 1997. http://docnum.univ-lorraine.fr/public/INPL_T_1997_LAGRANGE_L.pdf.
Full textBenitez, Alberto. "Dynamique en fretting : influence du type d'asservissement et apport de la technique d'émission acoustique." Thesis, Toulouse, INPT, 2016. http://www.theses.fr/2016INPT0059/document.
Full textMost fretting studies analyze material’s responses using criteria directly issued from characteristic parameters of the fretting loops (loop aperture, dissipated energy, contact stiffness...). The first part of this study concerns the influence of the device, first element of the tribological triplet, on the gross slip response of a ball-on-flat contact. The role of the static and dynamic device stiffness (vibratory analysis), of the control system mode (imposed displacement or imposed actuator force) and of the material type (ductile, brittle or non-adherent) on the loop shape is analyzed in order to distinguish the respective contributions of devices and materials. The second part of this study concern the analysis of the influence of operating parameters (normal force, displacement, frequency, current intensity) for CuSn6-CuSn6 pairs for low current onboard connectors applications. An analysis of variance allowed to prioritize and identify existing linkages between the operating parameters and the tribology and electrical responses. An examination of acoustic emission signals (amplitude AE, emissivity, absolute energy, centroid frequency…) and the electrical resistance of contact allowed a temporal understanding of local mechanisms of degradation synthesized by an approach third body
Guéroult, Bertrand. "Influence de la microstructure sur la resistance a l'usure des ceramiques : etude de traitements post-frittage et developpement d'un essai de rayage." Paris, ENMP, 1987. http://www.theses.fr/1987ENMP0094.
Full textPopoola, Oludélé Olusègun. "Amorphisation et précipitation superficielles induites par implantation ionique dans les alliages NiTi équiatomiques : application aux propriétés tribologiques." Poitiers, 1988. http://www.theses.fr/1988POIT2292.
Full textRipard, Valentin. "Tribological characterization of greased drive-shaft : Evaluation of constant velocity joint durability." Thesis, Lyon, 2019. http://www.theses.fr/2019LYSEI083.
Full textNew customer desires are leading car manufacturers to new challenges. Indeed, enhanced vehicles like SUV (Sport Utility Vehicle) becomes more and more popular, especially in Europe. These vehicles involve some modification over the usual mechanical transmissions designs. This vehicle type has a higher angularity than sedans for example. This desire modification has 2 impacts: the increase of slipping in the transmission and its influence on the durability of the components. The angularity modification remains one of the major lines of research in recent years for car manufacturers. Its increasing influences efficiency. Indeed, this axis of improvement is attractive for manufacturers due to new environmental standards but also an increase in oil price. In addition, a car must have a reliable transmission that does not require, in the case of constant velocity joints, any maintenance during vehicle life. The following work will focus on this objective. The main goal of this manuscript is to understand the wear mechanism of the tripod constant velocity joint (CVJ). An analysis of the kinematics was first conducted to reproduce contacts on test rigs. It relied on data from the bibliography but also a simulation of solid dynamics. In addition, the design of a new observation rig using additive manufacturing made it possible to experimentally reproduce slipping in tripod. Furthermore, a characterization of greases used in Groupe PSA transmissions was performed in order to know the friction coefficients inducing the shudder level of the CVJ. These are also essential in order to judge the efficiency of the component. Finally, a wear investigation is performed to explain the possible lubrication failure mechanisms with greases proposing different mechanical behaviour. This approaches enables the transmission designer to choose a grease ensuring maximum durability of transmission components. Looking ahead, a lubricant characterization rig specially designed for tripod joint contacts has been designed. It will thus allow a more complete characterization of further lubricants to this essential vehicle component
Osman, Thaer. "Simulation de l'usure et d'avaries sur des dentures d'engrenages cylindriques : Influence sur le comportement statique et dynamique de transmission par engrenages." Phd thesis, INSA de Lyon, 2012. http://tel.archives-ouvertes.fr/tel-00760062.
Full textBooks on the topic "Resistance usure"
Ross, Stephen J. Invisible Terrain. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198798385.001.0001.
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