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An integrated simulation model and evolutionary algorithm for train timetabling problem with considering train stops for praying
, Article Proceedings - Winter Simulation Conference ; 2012 ; 08917736 (ISSN); 9781467347792 (ISBN) ; Sajedinejad, A ; Mardani, S ; Mohammadi, K. S. A. R. M ; Assoc. Comput. Mach.: Spec. Interest Group Simul. (ACM/SIGSIM); Institute of Industrial Engineers (IIE); Inst. Oper. Res. Manage. Sci.: Simul. Soc. (INFORMS-SIM); The Society for Modeling and Simulation International (SCS); Arbeitsgemeinschaft Simulation (ASIM) ; Sharif University of Technology
2012
Abstract
This paper presents a simulation-based optimization approach for railway timetabling, which is made interesting by the need for trains to stop periodically to allow passengers to pray. The developed framework is based on integration of a simulation model and an evolutionary path re-linking algorithm with the capability of scheduling trains, subject to the capacity constraints in order to minimize the total waiting times. A customized deadlock avoidance method has been developed which is based on a conditional capacity allocation. The proposed look-ahead deadlock avoidance approach is effective and easy to implement in the simulation model. A case study of the Iranian Railway (RAI) is...
Evidence for a new two-dimensional C 4H-type polymer based on hydrogenated graphene
, Article Advanced Materials ; Volume 23, Issue 39 , 2011 , Pages 4497-4503 ; 09359648 (ISSN) ; Giusca, C. E ; Wang, Y ; Sachdev, H ; Fedorov, A. V ; Farjam, M ; Jafari, S. A ; Vyalikh, D. V ; Usachov, D ; Liu, X ; Treske, U ; Grobosch, M ; Vilkov, O ; Adamchuk, V. K ; Irle, S ; Silva, S. R. P ; Knupfer, M ; Büchner, B ; Grüneis, A ; Sharif University of Technology
2011
Abstract
A new polymer with C 4H stoichiometry based on graphene is synthesized in situ using template-induced polymerization of self-organizing hydrogen adsorbates on graphene. The polymerization is observed "live" on the surface of graphene by photoemission spectroscopy. Photoemission spectroscopy allows for an accurate determination of the carbon/hydrogen stoichiometry, an aspect that is extremely important for understanding functionalized graphene
Effectiveness of herbicide to control rice weeds in diverse saline environments
, Article Sustainability (Switzerland) ; Volume 13, Issue 4 , 2021 , Pages 1-12 ; 20711050 (ISSN) ; Juraimi, A. S ; Karim, S. M. R ; Khan, M. S. I ; Islam, M. S ; Choudhury, M. K ; Soufan, W ; Alharby, H ; Bamagoos, A ; Iqbal, M. A ; Hnilicka, F ; Kubes, J ; Rahman, M. H. U ; Saud, S ; Hassan, M. M ; Sabagh, A. E. L ; Sharif University of Technology
MDPI AG
2021
Abstract
To mitigate environmental pollution and food contamination caused by inappropriate and excessive herbicide usage, most potent herbicides should be screened to control rice weeds. A research trial was executed for assessing the comparative efficacy of different herbicides to control rice field weeds and to evaluate the toxicity on rice under normal (distilled water) as well as different salinity levels (4 and 8 dS m-1). The study was designed to select the most potent herbicide and its appropriate dose for weed control of rice crop in coastal areas. Fourteen herbicidal treatments were included weed free crop, Pretilachlor (0.25, 0.50, 0.375 and 0.75 kg a.i. ha-1), Propanil + Thiobencarb (0.6...