To enhance lasers’ power and improve their performance, a model wasapplied for the waveguide design of 400 nm InGaN/InGaN semiconductor laser, whichis much easier to implement. The conventional and new laser structures weretheoretically investigated using simulation software PICS3D, which self-consistentlycombines 3D simulation of carrier transport, self-heating, and opt...

Recent developments in the design and manufacture of microcomputers together with improved simulation techniques make it possible to achieve the speed and accuracy required for the dynamic simulation of power systems in real time. This paper presents some experimental results and outlines new ideas on hardware architecture, mathematical algorithms and software development for this purpose. The ...

1 Matti Väänänen, HAMK – University of Applied Sciences, [email protected] Abstract HAMK University of Applied Sciences in cooperation with industry and with public funding is developing a new way to improve the know-how in the area of local metal industry. The whole “package” InnoSteel consists of a group of projects which contain support for product development of innovative companies an...

E-learning simulation authoring tools are the next generation of e-learning products: they enable tutors to create interactive multimedia course content. Users can walk through applications online and practise as they progress through course material. Much online course content is still based on paper models, but new media need new methods, and the growing availability of elearning simulation t...

The objective of this paper is to understand and study sustainable product development using a systems approach. In the real world, artifacts interact with each other to form a web structure (known as artifact system (AS)), which has its own laws of evolution. Specifically, this paper focuses on development of “Factor X” model to study the diffusion of ecoinnovation strategies. The concept of “...

The performance of cars has during recent years become increasingly dependent on complex electronic systems used especially for safety but also comfort, performance and informatics. Automotive winter testing activities in northern Sweden is vital to test and try out those systems. A contradiction to increased performance is that faulty software also causes 30 % of severe malfunctions in the fun...

We attempt to demonstrate the effectiveness of multiple points of view toward neural networks. By restricting ourselves to two points of view of a neuron, we propose a new type of information-theoretic method called "cooperation-controlled learning." In this method, individual and collective neurons are distinguished from one another, and we suppose that the characteristics of individual and co...

In modern electronics, specifications for products have constantly been tightened due to performance competition. The processes for product development and manufacturing have been developed to meet the tighter specifications and quality requirements. The development of test methods and measurement devices have not been as fast, and as a consequence, the relative impact of measurement errors has...

one of known methods for measuring, forecasting and managing risk is value at risk, which recently has been used by financial institutions extensively. value at risk (var) is a method for recognizing and evaluating risk and uses standard statistical techniques that have daily using in other contexts. this research is seeking a career for managing investment risk in stock exchange and selection ...