in order to evaluate drought tolerance of chickpea genotypes and identifying the best indices of drought tolerance, the 20 genotypes desi chickpea plus two improved cultivars (kaka and piroz) were tested using a randomized complete block design under two irrigated (non stress) and (stress) conditions. quantitive drought tolerance and susceptibility indices such as stress tolerance index (sti), ...

The above project proposal was originally formulated around development of an incremental proof management system to support an incremental design methodology for analysis of system fault tolerance. The work was expected to be valuable in development of safety-critical systems and in particular aerospace systems. As a result of early feedback by other industrial members of the CENIIT board, the...

This paper proposes interval constraint networks and interval propagation techniques for automatic tolerance design. To develop an intelligent automatic tolerance design mechanism, the following interrelated problems are addressed: ~1! representing the relationships between the tolerances of the entities, attributes, and the functional requirements of a design component by a constraint network,...

The work addresses two important issues in computer-aided tolerancing: automated generation of design specific cost-to-design-tolerance models and automation of design optimization in tolerance synthesis. These are accomplished by assembling generic, production operation-based, cost-tomanufacturing-tolerance models, based upon the mechanical features of a design and their minimum-cost manufactu...

Tolerance assignment in product design and process planning (machining) affects both the quality and the cost of the overall product cycle. It is a crucial issue to determine how much the tolerance should be relaxed during the assignment process, since a tight tolerance implies a high manufacturing cost and a loose tolerance results in low manufacturing cost. Hence, during tolerance assignment,...

Tolerance design plays a major role in the quality of the product life cycle. Its purpose not only can ensure the products quality. At the same time, it monitors the product manufacturing costs. The traditional the tolerance design devotes to the optimization target of minimizing the manufacturing cost. But due to the manufacturing process of a product, there is a nonlinear relation between tol...

Design diversity has been used for many years now as a means of achieving a degree of fault tolerance in software-based systems. Whilst there is clear evidence that the approach can be expected to deliver some increase in reliability compared with a single version, there is not agreement about the extent of this. More importantly, it remains difficult to evaluate exactly how reliable a particul...

in order to investigate the tolerance of wild barley (hordeum spontaneum), wild oat (avena ludoviciana) and different wheat (triticum aestivum) cultivars to metribuzin (sencore®), a completely randomized design experiment was conducted in ferdowsi university of mashhad. the treatment were replicated three times and included wheat cultivars (atila, chamran, niknejad, dorum, gaskojen), weed speci...