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A hybrid shifting bottleneck procedure algorithm for the parallel-machine job-shop scheduling problem / S-Q. Liu in Journal of the operational research society (JORS), Vol. 63 N° 2 (Fevrier 2012) 

Public ISBD [article]  in Journal of the operational research society (JORS) > Vol. 63 N° 2 (Fevrier 2012) . - pp. 168–182 Titre : A hybrid shifting bottleneck procedure algorithm for the parallel-machine job-shop scheduling problem Type de document : texte imprimé Auteurs : S-Q. Liu, Auteur ; E. Kozan, Auteur Année de publication : 2012 Article en page(s) : pp. 168–182 Note générale : Recherche opérationnelle Langues : Anglais (eng) Mots-clés : Scheduling  Heuristics  Parallel-machine  Job-shop  Shifting  bottleneck  procedure  Metaheuristics Index. décimale : 001.424 Résumé : In practice, parallel-machine job-shop scheduling (PMJSS) is very useful in the development of standard modelling approaches and generic solution techniques for many real-world scheduling problems. In this paper, based on the analysis of structural properties in an extended disjunctive graph model, a hybrid shifting bottleneck procedure (HSBP) algorithm combined with Tabu Search (TS) metaheuristic algorithm is developed to deal with the PMJSS problem. The original-version shifting bottleneck procedure (SBP) algorithm for the job-shop scheduling (JSS) has been significantly improved to solve the PMJSS problem with four novelties: (i) a topological-sequence algorithm is proposed to decompose the PMJSS problem in a set of single-machine scheduling (SMS) and/or parallel-machine scheduling subproblems; (ii) a modified Carlier algorithm based on the proposed lemmas and the proofs is developed to solve the SMS subproblem; (iii) the Jackson rule is extended to solve the PMS subproblem; (iv) a TS metaheuristic algorithm is embedded under the framework of SBP to optimise the JSS and PMJSS cases. The computational experiments show that the proposed HSBP is very efficient in solving the JSS and PMJSS problems. DEWEY : 001.424 ISSN : 0160-5682 En ligne : http://www.palgrave-journals.com/jors/journal/v63/n2/abs/jors20114a.html [article] A hybrid shifting bottleneck procedure algorithm for the parallel-machine job-shop scheduling problem [texte imprimé] / S-Q. Liu, Auteur ; E. Kozan, Auteur . - 2012 . - pp. 168–182. Recherche opérationnelle Langues : Anglais (eng) in Journal of the operational research society (JORS) > Vol. 63 N° 2 (Fevrier 2012) . - pp. 168–182 Mots-clés : Scheduling  Heuristics  Parallel-machine  Job-shop  Shifting  bottleneck  procedure  Metaheuristics Index. décimale : 001.424 Résumé : In practice, parallel-machine job-shop scheduling (PMJSS) is very useful in the development of standard modelling approaches and generic solution techniques for many real-world scheduling problems. In this paper, based on the analysis of structural properties in an extended disjunctive graph model, a hybrid shifting bottleneck procedure (HSBP) algorithm combined with Tabu Search (TS) metaheuristic algorithm is developed to deal with the PMJSS problem. The original-version shifting bottleneck procedure (SBP) algorithm for the job-shop scheduling (JSS) has been significantly improved to solve the PMJSS problem with four novelties: (i) a topological-sequence algorithm is proposed to decompose the PMJSS problem in a set of single-machine scheduling (SMS) and/or parallel-machine scheduling subproblems; (ii) a modified Carlier algorithm based on the proposed lemmas and the proofs is developed to solve the SMS subproblem; (iii) the Jackson rule is extended to solve the PMS subproblem; (iv) a TS metaheuristic algorithm is embedded under the framework of SBP to optimise the JSS and PMJSS cases. The computational experiments show that the proposed HSBP is very efficient in solving the JSS and PMJSS problems. DEWEY : 001.424 ISSN : 0160-5682 En ligne : http://www.palgrave-journals.com/jors/journal/v63/n2/abs/jors20114a.html

Identification of aroma-active compounds in malaysian pomelo (citrus grandis (L.) osbeck) peel by gas chromatography-olfactometry / M-W Cheong in The journal of essential oil research, Vol. 23 N° 6 (Novembre/Décembre 2011) 

Public ISBD [article]  in The journal of essential oil research > Vol. 23 N° 6 (Novembre/Décembre 2011) . - pp. 34-42 Titre : Identification of aroma-active compounds in malaysian pomelo (citrus grandis (L.) osbeck) peel by gas chromatography-olfactometry Type de document : texte imprimé Auteurs : M-W Cheong, Auteur ; S-Q. Liu, Auteur ; J. Yeo, Auteur Année de publication : 2012 Article en page(s) : pp. 34-42 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Pomelo  GC-olfactometry  AEDA  RFA  Aldehydic  Grapefruit-like Index. décimale : 646 Résumé : Malaysian pink and white pomelo (Citrusgrandis (L.) Osbeck) peels were extracted with dichloromethane (DCM). Using GC-FID/MS and gas chromatography-olfactometry (GC-O), 50 and 47 aroma-active compounds were identified in pink and white pomelo peel extracts, respectively. The potency of each odorant in both pomelo peel extracts was determined by aroma extraction dilution analysis (AEDA). On the basis of flavor dilution (FD) factor, odor activity value (OAV) and relative flavor activity (RFA), main odorants in pink pomelo peel extract were trans-linalool oxide, cis,trans-2,6-nonadienal, octanal, citronellal, nonanal, trans-nerolidol, neryl acetate, indole, 6-methyl-5-hepten-2-one, terpinolene, trans-2-heptenal, perilla alcohol and nootkatone, while the most intense aromas in white pomelo peel extract were terpinolene, α-copaene, 4-terpinenol, trans-nerolidol, trans-linalool oxide, nootkatone, cis,trans-2,6- nonadienal, citronellol, elemol, carvyl acetate, 6-methyl-5-hepten-2-one, perilla aldehyde and indole. Thus, no single compound exhibited the characteristic aroma of both Malaysian pomelo peel extracts. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2011.9712279 [article] Identification of aroma-active compounds in malaysian pomelo (citrus grandis (L.) osbeck) peel by gas chromatography-olfactometry [texte imprimé] / M-W Cheong, Auteur ; S-Q. Liu, Auteur ; J. Yeo, Auteur . - 2012 . - pp. 34-42. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 23 N° 6 (Novembre/Décembre 2011) . - pp. 34-42 Mots-clés : Pomelo  GC-olfactometry  AEDA  RFA  Aldehydic  Grapefruit-like Index. décimale : 646 Résumé : Malaysian pink and white pomelo (Citrusgrandis (L.) Osbeck) peels were extracted with dichloromethane (DCM). Using GC-FID/MS and gas chromatography-olfactometry (GC-O), 50 and 47 aroma-active compounds were identified in pink and white pomelo peel extracts, respectively. The potency of each odorant in both pomelo peel extracts was determined by aroma extraction dilution analysis (AEDA). On the basis of flavor dilution (FD) factor, odor activity value (OAV) and relative flavor activity (RFA), main odorants in pink pomelo peel extract were trans-linalool oxide, cis,trans-2,6-nonadienal, octanal, citronellal, nonanal, trans-nerolidol, neryl acetate, indole, 6-methyl-5-hepten-2-one, terpinolene, trans-2-heptenal, perilla alcohol and nootkatone, while the most intense aromas in white pomelo peel extract were terpinolene, α-copaene, 4-terpinenol, trans-nerolidol, trans-linalool oxide, nootkatone, cis,trans-2,6- nonadienal, citronellol, elemol, carvyl acetate, 6-methyl-5-hepten-2-one, perilla aldehyde and indole. Thus, no single compound exhibited the characteristic aroma of both Malaysian pomelo peel extracts. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2011.9712279