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.

The layout design is a ubiquitous problem in engineering and design that is intrinsically knowledge-intensive, complex, vague, ill-comprehended and ill-structured. Inadequate information processing capabilities in tandem with various subjective user preferences, design constraints, and fitness objectives often hamper the acquisition of a superior solution. Consequently, the incorporation of sub...

Entity clustering is a vital feature needed by any automatic content conversion system. Such a system constructs a digital document from a hard copy of a newspaper, book, etc. At application level, the system will process an image (typically black and white) and identify the various content layout elements, such as paragraphs, tables, images, columns, etc. Here is where the entity clustering me...

The role of locomotion in the acquisition and transfer of spatial knowledge was investigated in 144 five-, seven- and eleven-year-old children. Two experiments were conducted in the Kiel locomotor maze. In the first experiment, one group of children explored the spatial layout by walking through the maze, while another learned the maze by surveying the layout. In the second experiment, children...