901 resultados para Rolling Drum Tire Testers.
Resumo:
UANL
Resumo:
UANL
Resumo:
Le sujet de ce mémoire émane d’une volonté d’intégrer la recherche à ma réalité organisationnelle, celle des Forces canadiennes (FC). De cette aspiration est née l’idée d’étudier comment se dévoilent la face et la figuration lors de l’instruction de base. Partant d’une approche interactionniste, l’attention a été portée sur la face et la figuration d’un stagiaire au cours de trois interactions avec ses supérieurs. C’est plus précisément, la filature et l’analyse de conversation qui ont été mobilisées pour examiner cette problématique. La pertinence de la démarche est qu'elle met de l'avant une perspective de recherche peu présente dans la littérature, mais surtout, qu’elle s’insère dans un contexte organisationnel méconnu. L'entreprise vise d’une part, à nourrir la théorie en raffinant des concepts existants : la face et la figuration. D’autre part, elle cherche à éclairer la pratique en mettant en évidence des actes communicationnels difficilement observables dans le cadre habituel des activités militaires.
Resumo:
It is observed that reclamation of natural rubber latex based rubber using 2,2'-dibenzamidodiphenvldisulphide as reclaiming agent is an optional methodology for recycling of waste latex rubber (WLR). For progressive replacement of virgin natural rubber by the reclaim, two alternatives curing system were investigated: adjustment or reduction of the curing system with increasing reclaim content, to compensate for the extra amount of curatives brought along by the reclaim. For fixed curing system, as if the reclaim were equivalent to virgin NR. The cure behavior, final crosslink density and distribution, mechanical properties, and dynamic viscoelastic properties of the blends with reclaimed WLR are measured and compared with the virgin compound. The morphology of the blends, sulfur migration, and final distribution are analyzed.The mechanical and dynamic viscoelastic properties deteriorate for both curing systems, but to a lesser extent for fixed curing system compared to adjusted curing system. With the fixed cure system, many properties like tensile strength and compression set do still deteriorate, but tan 6 and Mrrr„/Murxr, representative for the rolling resistance of tires are improved. On the other hand, with the adjusted cure system both mechanical and dynamic properties still deteriorate.
Resumo:
ABSTRACT: Nylon tire cord (1680/2) was dipped in different adhesives based on resorcinol formaldehyde resin and latex (RFL) and was bonded to natural rubber-based compounds. The resin-rubber ratio in the RFL adhesive was optimized. The variation of pull-through load was studied by varying the drying and curing temperature of the dipped nylon tire cord. RFL adhesive based on vinylpyridine latex was found to have better rubber-to-nylon tire cord bonding, compared with the one based on natural rubber latex. Addition of a formaldehyde donor into the RFL adhesive/rubber compound improves adhesion.
Resumo:
The thesis is the outcome of the experimental and theoretical investigations on a new compact drum-shaped microstrip antenna. A new compact antenna suitable for personal communication system(PCS), Global position System(GPS) and array applications is developed and analysed. The generalised cavity model and spatial fourier transform technique are suitably modified for the analysis of the antenna. The predicted results are compared with experimental results and excellent agreement is observed. The experimental work done by the author in related fields are incorporated as three appendices in this thesis. A single feed dual frequency microstrip antenne is presented in appendix A.Appendix B describes a new broadband dual frequeny microstrip antenna. The bandwidth enhancement effect of microstrip antennas through dielectric resonator loading is demonstarted in Appendix C.
Resumo:
Forma parte de una colección de no ficción, que tiene como objetivo ayudar a los jóvenes lectores a conocer y comprender el mundo que les rodea. Como introducción a los principios científicos que constituyen la acción de rodar. Ilustrados con fotografías en color, los experimentos hacen hincapié en la necesidad del niño de investigar para favorecer el aprendizaje por descubrimiento. Hay glosario para desarrollar las habilidades ligüísticas.
Resumo:
POPULATION = Terme générique pour désigner l’adhésion d’une population, ou d’un groupe significatif de citoyens d’un territoire d’appartenance, au projet de muséologie sociale. Celle-ci se mesure par le degré de participation, d’implication et de vision partagée, d’interaction au sein de la collectivité territoriale, son fief. PARTICIPANTS = Sont les acteurs actifs au sein de la population adhérante, partie prenante au projet de muséologie social. La participation se mesure selon le degré d’implication dans le projet et de compréhension de celui-ci (Intérêt, gestion partagée, militance, volonté de capacitation...) COOPÉRANT = Par solidarité, par engagement, il s’insère dans le système de l’action ccopérative, possédant ses règles propres, offrant sa contribution à l’unité de production conciliant la dimension sociale (de la muséologie), son idée au regroupement de personnes désireuses de contribuer à la production commune de biens de qualité au service de la population dont ils sont issus.
Resumo:
This paper describes the design, implementation and testing of an intelligent knowledge-based supervisory control (IKBSC) system for a hot rolling mill process. A novel architecture is used to integrate an expert system with an existing supervisory control system and a new optimization methodology for scheduling the soaking pits in which the material is heated prior to rolling. The resulting IKBSC system was applied to an aluminium hot rolling mill process to improve the shape quality of low-gauge plate and to optimise the use of the soaking pits to reduce energy consumption. The results from the trials demonstrate the advantages to be gained from the IKBSC system that integrates knowledge contained within data, plant and human resources with existing model-based systems. (c) 2005 Elsevier Ltd. All rights reserved.