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Détail de l'auteur
Auteur J. Yu
Documents disponibles écrits par cet auteur
Affiner la rechercheEffects of rare earth cerium addition on the synthesis and corrosion resistance of electroless Ni–PTFE–P coating / D. Liu in Materials and corrosion, Vol. 62 N° 10 (Octobre 2011)
[article]
in Materials and corrosion > Vol. 62 N° 10 (Octobre 2011) . - pp. 926–931
Titre : Effects of rare earth cerium addition on the synthesis and corrosion resistance of electroless Ni–PTFE–P coating Type de document : texte imprimé Auteurs : D. Liu, Auteur ; L. Zhou, Auteur ; J. Yu, Auteur Année de publication : 2012 Article en page(s) : pp. 926–931 Note générale : Génie Mécanique Langues : Anglais (eng) Mots-clés : Corrosion resistance Electroless plating Morphology Rare earth metal Ni–PTFE–P coatings Résumé : Electroless Ni–PTFE–P coatings have been successfully deposited on the surface of mild steel shaft from plating baths containing various concentrations of rare earth metal cerium (RE Ce). Surface morphology, Ce fraction, and thickness of the coatings were characterized by scanning electron microscope, inductively coupled plasma optical emission spectrometry, and reflection optical microscope, respectively. Salt spray test was used to determine the corrosion resistance of the coating. Results revealed that structure, compactness, and deposition rate of the Ni–PTFE–P coatings were increased significantly by addition of a small amount of RE Ce (10–20 ppm) to the plating bath. Electroless Ni–PTFE–P coating deposited from plating baths with 20 ppm Ce shows the highest corrosion resistance, owing to its high compactness and thickness. Deposition rate and corrosion resistance of the Ni–PTFE–P coating were deteriorated greatly as concentration of RE Ce in the plating baths exceeds 100 ppm. DEWEY : 620.1 ISSN : 0947-5117 En ligne : http://onlinelibrary.wiley.com/doi/10.1002/maco.200905523/abstract [article] Effects of rare earth cerium addition on the synthesis and corrosion resistance of electroless Ni–PTFE–P coating [texte imprimé] / D. Liu, Auteur ; L. Zhou, Auteur ; J. Yu, Auteur . - 2012 . - pp. 926–931.
Génie Mécanique
Langues : Anglais (eng)
in Materials and corrosion > Vol. 62 N° 10 (Octobre 2011) . - pp. 926–931
Mots-clés : Corrosion resistance Electroless plating Morphology Rare earth metal Ni–PTFE–P coatings Résumé : Electroless Ni–PTFE–P coatings have been successfully deposited on the surface of mild steel shaft from plating baths containing various concentrations of rare earth metal cerium (RE Ce). Surface morphology, Ce fraction, and thickness of the coatings were characterized by scanning electron microscope, inductively coupled plasma optical emission spectrometry, and reflection optical microscope, respectively. Salt spray test was used to determine the corrosion resistance of the coating. Results revealed that structure, compactness, and deposition rate of the Ni–PTFE–P coatings were increased significantly by addition of a small amount of RE Ce (10–20 ppm) to the plating bath. Electroless Ni–PTFE–P coating deposited from plating baths with 20 ppm Ce shows the highest corrosion resistance, owing to its high compactness and thickness. Deposition rate and corrosion resistance of the Ni–PTFE–P coating were deteriorated greatly as concentration of RE Ce in the plating baths exceeds 100 ppm. DEWEY : 620.1 ISSN : 0947-5117 En ligne : http://onlinelibrary.wiley.com/doi/10.1002/maco.200905523/abstract Single-manufacturer, multi-retailer consignment policy for retailers’ generalized demand distributions / J. Yu in Journal of the operational research society (JORS), Vol. 63 N° 12 (Décembre 2012)
[article]
in Journal of the operational research society (JORS) > Vol. 63 N° 12 (Décembre 2012) . - pp. 1708–1719
Titre : Single-manufacturer, multi-retailer consignment policy for retailers’ generalized demand distributions Type de document : texte imprimé Auteurs : J. Yu, Auteur ; Sarker, B. R., Auteur ; Q. Duan, Auteur Année de publication : 2013 Article en page(s) : pp. 1708–1719 Note générale : operational research Langues : Anglais (eng) Mots-clés : consignment and traditional policies; stochastic demand; supply chain coordination Index. décimale : 001.424 Résumé : Consignment policy (CP) is a novel approach to the inventory management in supply chains. It is based on strong interaction and reliable collaboration between vendor(s) and buyer(s), which is acquiring growing importance in today's industrial reality. Unlike most literature focusing on single-vendor single-buyer models and deterministic customer demand, a single-manufacturer (vendor) multi-retailer (buyer) generic model is developed under stochastic customer demand in this study. In order to understand the potential benefits of CP, it is compared with a traditional policy (TP) model developed in the similar approach. The models are tested with two scenarios of uniform and exponential demand distributions of the retailers. The results show how CP works better than the traditional uncoordinated optimization. It not only helps the manufacturer to generate higher profit, but also coordinates retailers to achieve a higher supply chain profit. At the same time, each retailer earns at least as much as they do in TP. Further price discount sensitivity analysis demonstrates the efficiency of CP when facing price-demand fluctuation. DEWEY : 001.424 ISSN : 0160-5682 En ligne : http://www.palgrave-journals.com/jors/journal/v63/n12/abs/jors201213a.html [article] Single-manufacturer, multi-retailer consignment policy for retailers’ generalized demand distributions [texte imprimé] / J. Yu, Auteur ; Sarker, B. R., Auteur ; Q. Duan, Auteur . - 2013 . - pp. 1708–1719.
operational research
Langues : Anglais (eng)
in Journal of the operational research society (JORS) > Vol. 63 N° 12 (Décembre 2012) . - pp. 1708–1719
Mots-clés : consignment and traditional policies; stochastic demand; supply chain coordination Index. décimale : 001.424 Résumé : Consignment policy (CP) is a novel approach to the inventory management in supply chains. It is based on strong interaction and reliable collaboration between vendor(s) and buyer(s), which is acquiring growing importance in today's industrial reality. Unlike most literature focusing on single-vendor single-buyer models and deterministic customer demand, a single-manufacturer (vendor) multi-retailer (buyer) generic model is developed under stochastic customer demand in this study. In order to understand the potential benefits of CP, it is compared with a traditional policy (TP) model developed in the similar approach. The models are tested with two scenarios of uniform and exponential demand distributions of the retailers. The results show how CP works better than the traditional uncoordinated optimization. It not only helps the manufacturer to generate higher profit, but also coordinates retailers to achieve a higher supply chain profit. At the same time, each retailer earns at least as much as they do in TP. Further price discount sensitivity analysis demonstrates the efficiency of CP when facing price-demand fluctuation. DEWEY : 001.424 ISSN : 0160-5682 En ligne : http://www.palgrave-journals.com/jors/journal/v63/n12/abs/jors201213a.html