.......................................................................................................................... 1 Papers included in this thesis .......................................................................................... 2 Symbols and abbreviations ............................................................................................. 3

There is a critical need for exact, real-time reaction control of the chemical vapor deposition (CVD) systems that are used for semiconductor device manufacture [1]. At present, the development of real-time control for reactions within production-style reactor configurations is hampered by a number of issues: The nature, concentrations and physical distributions of the chemical species within t...

Manufacturing produces real wealth for any country and constitutes the back bone for the service sector. The objective of any organization is to earn profit. Usually the market fixes the selling price of the manufactured components. Unless there is focus on the manufacturing strategy of reducing manufacturing cost, it is very difficult to sustain in this ever competitive world. A suitable manuf...

New demands are being placed on monitoring systems in precision manufacturing because of recent developments and trends in machining technology and machine tool design. This paper first discusses the requirements for sensor technology for precision manufacturing process monitoring in general. Then, background and details are given about acoustic emission (AE) and the application of AE sensing t...

To increase productivity, new automatic production lines are introduced driven by adequate computer hardware and software. While determining production process characteristics for building complex product such as steel vessel, special consideration is given to dimensioning and defining capacity of production equipment and working places. Process characteristics should accomplish building and ou...

This paper discusses a framework to optimise manufacturing processes for small to medium enterprises through the application of ambient intelligent technologies. To profit in today’s market, small manufacturers must be efficient and agile to minimise cost and to meet variable market demand. Smart tags, agent technology, multi-modal communication, semantic reasoning technology and contextaware a...

The objective of the current research is to model and control the wiresaw manufacturing processes in wafer slicing. Other than a few patents in industrial management of wiresaw, the wiresaw manufacturing process has remain poorly investigates. The purpose of this research is to investigate and understand the fundamental mechanism of this critical technology in slicing silicon wafers and ceramic...

To improve the performance of current discrete event simulation technology as applied to manufacturing as well as supply chain, the integration of 3D visualization technology is a feasible and effective strategy. The use of Virtual Reality technology upgrades the present simulation package from simple 2D icons to realistic 3D worlds. It helps users to understand the simulation system more effec...

In a global economy, manufacturers mainly compete with cost efficiency of production, as the price of raw materials are similar worldwide. Heavy industry has two big issues to deal with. On the one hand there is lots of data which needs to be analyzed in an effective manner, and on the other hand making big improvements via investments in cooperate structure or new machinery is neither economic...

Abstract Reinforcement learning is a promising approach for manufacturing processes. Process knowledge can be gained automatically, and autonomous tuning of control possible. However, the use reinforcement in production environment imposes specific requirements that must met successful application. This article defines those evaluates three methods to explore their applicability. The results sh...