Bu-Ali Sina University

About: Bu-Ali Sina University is a education organization based out in Hamadan, Hamadān, Iran. It is known for research contribution in the topics: Catalysis & Adsorption. The organization has 4078 authors who have published 7969 publications receiving 122828 citations.

Electrochemical process for 2,4-D herbicide removal from aqueous solutions using stainless steel 316 and graphite Anodes: optimization using response surface methodology

Abstract: In this experimental study, an electrochemical cell (100 cc) equipped with anode electrodes of SS316 and graphite and the cathode electrode of SS316 in parallel form at a distance of 1 cm f...

Cost-oriented two-sided assembly line balancing problem: A simulated annealing approach

Abstract: Two-sided assembly line balancing problems usually occur in plants producing large-sized high-volume products such as automobiles, buses or trucks. The difference between these kinds of assembly lines and traditional assembly lines is that there is the possibility of installing two parallel single stations in each position of the line so that the workers can work simultaneously on different tasks of one same product. In this paper, the cost-oriented two-sided assembly line balancing problem is addressed. This kind of assembly line balancing problem usually occurs in final assembly of products in which the manufacturing process is very labour intensive. A mix integer programming is proposed to solve the problem optimally. Since the problem is well known as NP nondeterministic polynomial-time-hard, a heuristic algorithm based on simulated annealing approach is developed to solve the medium-and large-size scales of this problem. Through computational experiments, the performance of the proposed heuristic approach is examined. The experimental results validate the effectiveness and efficiency of the proposed algorithm.

Effect of different sources and levels of zinc on egg quality and laying hen performance.

Abstract: Eighty layer hens were assigned in a completely randomized design to four dietary treatments containing zinc sulphate or organic zinc as Albino-Zn in two levels of 25 or 50 ppm. Feed intake was expressed on a per hen basis. Daily egg collection was expressed on a hen-day basis. Eggs were weighed to calculate egg mass. Feed conversion ratio was calculated as feed consumed per egg mass. Also all eggs produced on days 14, 28 and 42 were collected and used for egg quality parameters. Albumen height was measured and HU was calculated. The yolk and dried shell were weighed then albumen weight was calculated. There was no effect of zinc source or zinc level on egg production, egg weight or feed conversion ratio. However, feed intake was lower in the group receiving 50 mg kg(-1) organic zinc. There were no significant treatment differences for weight of egg components or shell thickness, but albumen height and HU were higher in the second fortnight for the groups receiving organic zinc at 25 or 50 mg kg(-1) than in the un-supplemented group.