home submit paper guide for authors contact us register search archive current issue journal info
   [Home ] [Archive]    
Main Menu
Home::
Journal Information::
Articles archive::
For Authors::
Registration::
Contact us::
Site Facilities::
Editorial Workflow::
::
Search in website

Advanced Search
..
Receive site information
Enter your Email in the following box to receive the site news and information.
..
:: Volume 1, Issue 1 (10-2011) ::
2011, 1(1): 7-19 Back to browse issues page
Constrained Renewable Resource Allocation in Fuzzy Metagraphs via Min-Slack
S. S. Hashemin
Department of Industrial Engineering, Ardabil Branch, Islamic Azad University, Ardabil, Iran
Abstract:   (9493 Views)
This paper discusses that the fuzzy metagraphs can be used as a tool for scheduling and control of fuzzy projects. Often, available resources for executing projects may be limited. It is assumed the resources required to accomplish each activity of project (metagraph edges) is renewable. One of the common methods for scheduling projects is using the min-slack. So, first, the forward and backward computations for deterministic metagraphs are described. Then, assuming that the completion time of activities are positive trapezoidal fuzzy numbers, the forward and backward computations are generalized for fuzzy metagraphs. Consequently, completion time of project, earliest and latest time of start and end of activities and floating time of them are obtained as fuzzy numbers. Also, critical activities and critical paths are defined. Then, for scheduling, by using the selected ranking method, the activities of project (metagraph edges) based on min-slack ascending were ordered. Through some numerical examples, calculation steps and the results are illustrated.
Full-Text [PDF 239 kb]   (4392 Downloads)    
Type of Study: Research | Subject: General
Received: 2011/10/31 | Published: 2011/10/15
Send email to the article author

Add your comments about this article
Your username or Email:

CAPTCHA


XML     Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

S. S. Hashemin. Constrained Renewable Resource Allocation in Fuzzy Metagraphs via Min-Slack. International Journal of Applied Operational Research 2011; 1 (1) :7-19
URL: http://ijorlu.liau.ac.ir/article-1-43-en.html


Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Volume 1, Issue 1 (10-2011) Back to browse issues page
ژورنال بین المللی پژوهش عملیاتی International Journal of Applied Operational Research - An Open Access Journal
Persian site map - English site map - Created in 0.05 seconds with 37 queries by YEKTAWEB 4645