چکیده:
In cellular production, the production system is aimed at transforming several
subsystems into a cell in order to produce similar products in a cell with a higher
efficiency. In this paper, a multi-objective model in the layout-routing problem of
cell production with the goal of minimizing costs, maximizing the level of service
to customers has been addressed and solved using the meta-heuristic algorithm
MOSA. The results of solving a bi-objective model using this meta-heuristic
algorithm with its results in its previous solution method, the meta-heuristic
algorithm NSGAII and the Epsilon constraint method showed that MOSA is able
to provide better responses than NSGAII for large-scale issues. That is, at
approximately equal times, algorithm MOSA was able to produce more accurate
and better answers for the second objective function.
خلاصه ماشینی:
In this paper, a multi-objective model in the layout-routing problem of cell production with the goal of minimizing costs, maximizing the level of service to customers has been addressed and solved using the meta-heuristic algorithm MOSA.
Mahdavi [4] introduced a multi-objective model for cellular production with the goal of minimizing costs (internal and external cost of transportation, transportation costs, intercellular costs, cost of removal and installation of machine, fixed cost, salary cost, recruitment and dismissal costs, maintenance costs and cost of deficiency) and maximize customer service levels, which is solved using the meta-heuristic algorithm NSGA II.
[2] presented a model of the production system for dynamic and probable demand, and because of the probability of the model, in addition to considering the goal of minimizing machine costs, repositioning, intra-cellular transport and internal Cells terminated the total penalty deviation from the average demand for the components and solved it by using the simulated annealing algorithm.
A low-phase noise source injection-coupled LC quadrature oscillator with tail noise filter Marzieh Chaharboor *, Saman Mokhtabad, Hojat Ghonoodi 1.
com Abstract This paper presents a low phase noise source injection coupled quadrature oscillator (IC-QO).
4 GHz proposed design of CMOS source injection coupled quadrature oscillator with LC noise filter structure in the tail is simulated.
18µm TSMC CMOS technology proved that the proposed structure with passive components and using LC filter shunted with tail current source exhibit a low phase noise of -157 dBc at 3MHz offset frequency and -187.