The design of cellular manufacturing system (CMS) involves many structural and operational issues. One of the important CMS design steps is the formation of part families and machine cells which is called cell formation. In this paper, we propose an efficient algorithm to solve a new mathematical model for cell formation in cellular manufacturing systems based on cell utilization concept. The p...

Although availability of necessary equipment could play a role in wait times for MRI and CT exams in Canada, there are other dimensions to this issue. More machines in operation do not necessarily reduce wait times. It is important also to consider the level of utilization of the existing pool of scanners.This paper analyzes utilization of MRI and CT scanners (machines) by focusing on two indic...

selecting an appropriate manufacturing machine is a very important and complex problem for firms, which usually have to deal with both qualitative and quantitative criteria. taking into account the differences among machines in terms of cost, speed, quality and after sale services, type and number of machines are important parameters to consider. therefore, the goal of this paper is to propose ...

In this study, mathematical models are developed to study and compare the operations of a fully reliable and an unreliable flexible manufacturing cell (FMC), each with a flexible machine, a loading/unloading robot, and a pallet handling system. The operation times, loading/unloading times, and material handling times by the pallet are assumed to be random. The operation of the reliable cell is ...

Presented here is a set of methods and tools developed to provide transportable measurements of performance in heterogeneous networks of machines operating together as a single virtual heterogeneous machine (VHM). The methods are work-based rather than time-based, and yield significant analytical information. A technique for normalizing the measure of useful work performed across a heterogeneou...

— Dynamic virtual machine migration is a key technique technology in the cloud computing, an algorithm is proposed in this thesis, which is a dynamic resource scheduling based on minimum load imbalancing measurement. First of all, load balancer in scheduler judges the overload phenomenon; we need to migrate VM (Virtual Machine) on physical machine. Then, according to the records in load balanc...

During the past decade, the computer world has been changing a dramatic change in many aspects. In the past, personal computer was known as a desktop machine that functioned alone. All the resources, data, and computing power were within the same machine. However, in the network world today, more and more computers are connected together through the media to share data and resources or parallel...

Nowadays service oriented computing requires enlarging the virtualized datacenters. Quality of service has been the sole concern in cloud datacenter deployment. This demand will increase the operational cost and carbon dioxide emissions. Virtualization technology support Virtual Machine consolidation and migration. This will improve the server utilization, availability, fault tolerance and ener...

Machine condition monitoring is important to factory efficiency and safety of workers. A variety of vibration signals analysis techniques have long been used to diagnosis machine status. Based on the newest Internet and mobile communication technology we developed a remote fault diagnostic system with many merits. This remote monitoring system takes XML as a core and uses it to encode diagnosti...