With the advent of information systems and the recent developments in computing technology, traditional manufacturing systems are fast becoming obsolete. A new generation of factories is being designed with cellular or linked-cell manufacturing systems. This recent shift from traditional to cellular manufacturing system has necessitated the redesign of the factory and its layout. Traditional pr...

-This paper discusses and reviews a fundamental issue in cellular manufacturing--cell formation. This problem is of strategic and operational importance in that it affects the fundamental structure and the overall layout of a cellular manufacturing system. We first provide a comprehensive mathematical formulation of the cell formation problem and then propose a methodology-based classification ...

A multi-phase comprehensive method for the design of hybrid cellular manufacturing (HCM) system is presented in this paper. The initial phase aims at categorizing parts to be produced on the cellular or the functional layout facilities of the system. Second and third phases show a mathematical approach with two inter-related models, where the first is to determine the formation of cells and the...

This paper presents the design, fabrication and characterization of temperature microsensors based on Resistance Temperature Detectors (RTDs) with a meander-shaped geometry. Numerical simulations were performed for studying sensitivity RTDs according to their windings numbers as well optimizing layout. These fabricated using well-established microfabrication photolithographic techniques. The se...

There’s a rise in hefty data practice by indoor users as result of using their smartphones laptops routers and much more data-related they interact with downloaded imagines videos other multimedia accessories. This heavy use can be solved heterogeneous network when cellular is incorporated Pico cells into the existing Macro station. will not only improve spectral efficiency per unit area but al...

Cellular communications using high altitude platforms (HAPs) will predominate the existing conventional terrestrial or satellite systems but requires some optimization especially in the cellular radio coverage design. The design of HAPs cellular system suffers from increasing cell area when directing the same beam to cover lower elevation regions and therefore requires some modification in its ...

Effective interference management has been recognized by the industry and standardization bodies as a key enabler for 4G systems. This work is about static Inter-Cell Interference Coordination for OFDMA based cellular networks such as LTE. The majority of previous ICIC studies, both theoretical and simulation-based, have been conducted considering synthetic and/or small cellular layouts. In thi...

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...