Medicinal and ornamental plants are one of the most valuable resources in a wide range of natural resources in Iran in the case of scientific knowledge, cultivation, development and proper utilization, can play an important role in public health and employment and increase of non-oil exports This study explores strategies of gaining a competitive advantage of medicinal herbs in Ilam Province ba...

a facility layout problem is concerned with determining the best position of departments, cells, or machines on the plant. an efficient layout contributes to the overall efficiency of operations. it’s been proved that, when system characteristics change, it can cause a significant increase in material handling cost. consequently, the efficiency of the current layout decreases or is lost and it ...

there are some problems with estimating the time required for the manufacturing process of products, especially when there is a variable serving time, like control stage. these problems will cause overestimation of process time. layout constraints, reworking constraints and inflexible product schedule in multi product lines need a precise planning to reduce volume in particular situation of lin...

Let G be a finite group generated by reflections. It is shown that the elements of G can be arranged in a cycle (a "Gray. code") such that each element is obtained from the previous one by applying one of the generators. The case G = d[ ' yields a conventional binary Gray code. These generalized Gray codes provide an efficient wa), to run through the elements of any finite reflection group.

ABSTRACT The study aimed to evaluate the growth of ornamental cherry tomato plants in different protected environments and reflective materials on cultivation benches. As there were no repetitions environments, each environment was considered an experiment. In environment, experimental design used completely randomized with five replications three per plot. From analysis individual variances ev...

This research investigates the validity of the layout complexity metric to GUI screen design. This metric offers a simple method to gauge the complexity of the visual design of a computer screen by classifying screen objects into classes based on common dimensions and positions. However, though it has been used by other interface researchers, it is not clear that it is a valid metric for GUIs. ...