P. K. Ahmed

  • Citations Per Year
Learn More
This paper presents a nonlinear mathematical programming model for a stochastic job shop scheduling problem. Due to the complexity of the proposed model, traditional algorithms have low capability in producing a feasible solution. Therefore, a hybrid method is proposed to obtain a near-optimal solution within a reasonable amount of time. This method uses a(More)
The inhibitory effect of two Schiff bases 3-(5-methoxy-2-hydroxybenzylideneamino)-2-(-5-methoxy-2-hydroxyphenyl)-2,3-dihydroquinazoline-4(1H)-one (MMDQ), and 3-(5-nitro-2-hydroxybenzylideneamino)-2(5-nitro-2-hydroxyphenyl)-2,3-dihydroquinazoline-4(1H)-one (NNDQ) on the corrosion of mild steel in 1M hydrochloric acid were studied using mass loss,(More)
This paper investigates an allocation of parts to common and specific cells and it also presents a mathematical programming model comprising of constraints such as available time for common and special cells in each time horizon, and variables such as excess time required by each cell to process parts in each period. The objective of the model is to(More)
OBJECTIVE To compare PBSCT with BMT in Thalassaemia patients in terms of rejection, non-rejection mortality, disease free survival and overall survival. METHODS Fifty six patients were transplanted from September 2000 - July 2005. Twenty nine underwent BMT and 27 received PBSCT. Most patients were intensely transfused to keep minimum haemoglobin of 12(More)
The exploration of natural solution to decipher the seen and unforeseen consequences of chemical based agriculture and pest protection is the need of the hour. Termites are the severe pests for timber and agricultural crops. The use of chemical termiticides is the only popular method of control. But the drawbacks associated with them are the reasons to look(More)
A cellular manufacturing system (CMS) belongs to a family of modern production methods, which many industrial sectors have used beneficially in recent years. In fact, this system is an application of group technology (GT) determining cell formation (i.e. clustering part families and machine grouping) and layout design (i.e., inter-cell and intra-cell(More)
This paper presents a non-linear mathematical programming model for a stochastic job shopscheduling problem. Due to the complexity of the proposed model, traditional algorithms have low capability in producing a feasible solution. In order to deal with this in this paper a hybrid method is proposed that enables definition of a solution within a reasonable(More)
  • 1