This paper proposes a Flexible Power Electronic Transformer (FPET) for the application in the micro-grids. The low frequency transformer is usually used at the Point of Common Coupling (PCC) to connect the low voltage grid and utility network to each other. The conventional 50Hz transformer results in enhanced low voltage-grid power management system during grid-connected operation. In this pap...

Music has a long tradition of using electronic technology in performance – from early electronic instruments such as the Theremin, through to today’s plethora of digital devices. With rapid technological change, there is always the risk that important works using live electronics can be become un-performable over time, due to the lack of working equipment available, lack of the associated exper...

Recently, an electronic sealed-bid auction using cryptography techniques has been proposed. An electronic sealed-bid auction is a type of electronic auctions. The aim of an auction including an electronic sealed-bid auction is to decide the price of goods fairly. So, the decision method of the price on goods in an electronic auction is very important scheme. In this paper, we propose the electr...

This paper presents an action case study of the process by which the Swedish computer game developer Daydream Software planned, developed, and implemented the business model for its new online game, Clusterball. In particular, the paper explores Daydream’s choice between a radical business model and a conservative one for the game. Building on forecasts that “casual gamers” such as academics, b...

Mobile game devices today include novel features, such as ad-hoc wireless connections, advanced audio and visuals, and peer-to-peer networking. Using these devices to design new game concepts, however, can be difficult and take much time. We have developed OpenTrek – a free, Rapid Application Development game platform for mobile devices. OpenTrek is to be used as a prototype platform on standar...

The upcoming mobile and ubiquitous computing world will need new forms of information sharing and services collaboration between mobile devices and wireless reachable application services to support mobile commerce. In this paper we present ezBusiness application architecture for mobile e-business in hybrid network environment. Six major components of the ezBusiness architecture are identified ...

Head-Up Games attempt to combine the technological benefits of modern electronic games with the social and physical advantages of traditional games. To demonstrate this concept, a Head-Up Game for 9to 11-year-old children was designed and developed iteratively, with intensive involvement of children for play-testing. This paper describes and reflects on the game's design process and the implica...