The mixed and multi model line balancing problem: a comparison

Article Abstract:

The comparison of mixed and multi model line balancing in the assignment of tasks to work stations convey that the position of common tasks in the precedence diagram of the distinct models has a marked influence on the CPU time. The unequal delegation of the entire work content of single models among work stations is also substantially affected. It was also found that good solutions relative to the quantity of needed stations are compatible with long CPU times.

Manpower Planning NEC, Human resource management, Assembly-line balancing

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Packing different-sized circles into a rectangular container

Article Abstract:

The cylindrical bin packing problem of fitting plastic pipes of different diameters into a shipping crate is examined. Specifically, the problem is generalized into that of packing variable-sized circles into a rectangle. Using a nonlinear mixed integer programming model, several heuristic procedures are developed and applied to a set of 66 test problems. According to results, the best performance was provided by a quasi-random method and a genetic algorithm.

Packing for shipment, Packing (Shipments)

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Confidentiality control of tabulated data: some practical network models

Article Abstract:

Several alternative methods for controlling the confidentiality of tabulated data in statistics gathering using network formulations are studied. The techniques are based on the controlled rounding concept to preserve additivity and allow the addition of a number of new pieces of material. The results show that the alternative methods satisfy confidentiality requirements and are computationally viable.

Statistics, Statistics (Data), Perturbation (Mathematics), Smoothing (Statistics)

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