Elhadj Kolli

@univ-guelma.dz

Department of Sciences of matter / Faculty of Mathematics, Computer Sciences, Physics and Chemistr
université 8 Mai 1945 guelma algeria

Elhadj Kolli


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https://researchid.co/kollielhadj

RESEARCH, TEACHING, or OTHER INTERESTS

Organic Chemistry, Spectroscopy, Biochemistry, General Biochemistry, Genetics and Molecular Biology
1

Scopus Publications

56

Scholar Citations

2

Scholar h-index

1

Scholar i10-index

Scopus Publications

  • Approximation algorithms for capacitated stochastic inventory control models
    Retsef Levi, Robin O. Roundy, David B. Shmoys, Van Anh Truong
    Operations Research, 2008
    We develop the first algorithmic approach to compute provably good ordering policies for a multiperiod, capacitated, stochastic inventory system facing stochastic nonstationary and correlated demands that evolve over time. Our approach is computationally efficient and guaranteed to produce a policy with total expected cost no more than twice that of an optimal policy. As part of our computational approach, we propose a novel scheme to account for backlogging costs in a capacitated, multiperiod environment. Our cost-accounting scheme, called the forced marginal backlogging cost-accounting scheme, is significantly different from the period-by-period accounting approach to backlogging costs used in dynamic programming; it captures the long-term impact of a decision on system performance in the presence of capacity constraints. In the likely event that the per-unit order costs are large compared to the holding and backlogging costs, a transformation of cost parameters yields a significantly improved guarantee. We also introduce new semimyopic policies based on our new cost-accounting scheme to derive bounds on the optimal base-stock levels. We show that these bounds can be used to effectively improve any policy. Finally, empirical evidence is presented that indicates that the typical performance of this approach is significantly stronger than these worst-case guarantees.

RECENT SCHOLAR PUBLICATIONS

  • Evaluation of the antimicrobial activity of root extracts of selected plants growing spontaneously in southern Algeria
    E Kolli, S Zeroual, A Demirpolat, H Haba
    African Journal of Biological Sciences 6 (5), 8694-8714 , 2024
    2024
  • Réaction de Claisen-Schmidt: Synthèse nouvelles molécules dérivés de1, 4-dihydropyridines quinoléiques
    A Kedjadjaa, Y Miloudi, E Kolli, R Merdes
    RHAZES: Green and Applied Chemistry 15, 17-20 , 2022
    2022
  • SYNTHESIS AND CHARACTERIZATI OF NEW N-{2-(1H-INDOL-3-YL) ETHYL}-1-(QUINOLINYL) METHANAMIDE DERIVATIVES
    A Kedjadja, E Kolli, R Merdes
    Moroccan Journal of Heterocyclic Chemistry 21 (04), Mar. Chim. Heterocycl … , 2022
    2022
  • Synthèse et réactivité d’hétérocycles azotés de type pyrazoline quinoléinique à intéret biologique
    AA KEDJADJA
    RHAZES: Green and Applied Chemistry 11, 16-26 , 2021
    2021
  • Vol 5, N° 1 (THEME I: Synthèse et Réactivité des Hétérocycles)
    N BESBES
    RHAZES: Green and Applied Chemistry 5 , 2019
    2019
  • 1,1′-{1,4-Phenylene bis[3-(6-chloro-2-methyl-4-phenylquinolin-3-yl)-4,5-dihydro-1 H -pyrazole-5,1-diyl]}dibutan-1-one
    A Kedjadja, E Kolli, A Bouraiou, R Merdes, N Haddour
    Molbank 2015 (4), M868 , 2015
    2015
    Citations: 1
  • 1-[3-(2-Methyl-4-phenylquinolin-3-yl)-5-phenyl-4,5-dihydro-1 H -pyrazol-1-yl]-propane-1-one
    A Kedjadja, E Kolli, A Bouraiou, R Merdes
    Molbank 2015 (2), M863 , 2015
    2015
    Citations: 2
  • Cytotoxic sesquiterpene lactones and other constituents of Centaurea omphalotricha
    EH Kolli, F León, F Benayache, S Estévez, J Quintana, F Estévez, ...
    Journal of the Brazilian Chemical Society 23, 977-983 , 2012
    2012
    Citations: 53

MOST CITED SCHOLAR PUBLICATIONS

  • Cytotoxic sesquiterpene lactones and other constituents of Centaurea omphalotricha
    EH Kolli, F León, F Benayache, S Estévez, J Quintana, F Estévez, ...
    Journal of the Brazilian Chemical Society 23, 977-983 , 2012
    2012
    Citations: 53
  • 1-[3-(2-Methyl-4-phenylquinolin-3-yl)-5-phenyl-4,5-dihydro-1 H -pyrazol-1-yl]-propane-1-one
    A Kedjadja, E Kolli, A Bouraiou, R Merdes
    Molbank 2015 (2), M863 , 2015
    2015
    Citations: 2
  • 1,1′-{1,4-Phenylene bis[3-(6-chloro-2-methyl-4-phenylquinolin-3-yl)-4,5-dihydro-1 H -pyrazole-5,1-diyl]}dibutan-1-one
    A Kedjadja, E Kolli, A Bouraiou, R Merdes, N Haddour
    Molbank 2015 (4), M868 , 2015
    2015
    Citations: 1
  • Evaluation of the antimicrobial activity of root extracts of selected plants growing spontaneously in southern Algeria
    E Kolli, S Zeroual, A Demirpolat, H Haba
    African Journal of Biological Sciences 6 (5), 8694-8714 , 2024
    2024
  • Réaction de Claisen-Schmidt: Synthèse nouvelles molécules dérivés de1, 4-dihydropyridines quinoléiques
    A Kedjadjaa, Y Miloudi, E Kolli, R Merdes
    RHAZES: Green and Applied Chemistry 15, 17-20 , 2022
    2022
  • SYNTHESIS AND CHARACTERIZATI OF NEW N-{2-(1H-INDOL-3-YL) ETHYL}-1-(QUINOLINYL) METHANAMIDE DERIVATIVES
    A Kedjadja, E Kolli, R Merdes
    Moroccan Journal of Heterocyclic Chemistry 21 (04), Mar. Chim. Heterocycl … , 2022
    2022
  • Synthèse et réactivité d’hétérocycles azotés de type pyrazoline quinoléinique à intéret biologique
    AA KEDJADJA
    RHAZES: Green and Applied Chemistry 11, 16-26 , 2021
    2021
  • Vol 5, N° 1 (THEME I: Synthèse et Réactivité des Hétérocycles)
    N BESBES
    RHAZES: Green and Applied Chemistry 5 , 2019
    2019