The music industry is an interesting example for how business models from the pre-Internet area can get into trouble in the new Internet-based economy. Since 2000, the music industry has suffered declining sales, and very often this is attributed to the advent of the Internet-based peer-to-peer file sharing programs. We argue that this explanation is only one of several possible explanations, a...

In this paper we describe simple design of a kaleidoscope used for measuring the bidirectional reflectance distribution function with aim to obtain the bidirectional texture function of various surface samples. The first prototype of the kaleidoscope was designed in symmetrical configuration with four tapered mirror walls. We discuss the influence of different design parameters with respect to ...

The music industry is an interesting example for how business models from the pre-Internet area can get into trouble in the new Internet-based economy. Since 2000, the music industry has suffered declining sales, and very often this is attributed to the advent of the Internet-based peer-to-peer file sharing programs. We argue that this explanation is only one of several possible explanations, a...

A major problem on the Internet is the scalable dissemination of information. This problem is particularly acute exactly at the time when the scalability of data delivery is most important, e.g., election results on the night of the 2000 United States presidential election, and news during 9/11/2001. The current unicast pull framework simply does not scale up to these types of workloads. One pr...

Smart Grids require a robust communication network to handle huge amount of data involving different smart devices. Wireless applications become the core of advance meter communication systems. The current advances within this area infer that this type of systems will fulfill the Smart Grid requirements for applications such as Advance Metering Infrastructure, Distribution automation or Demand ...

Influence of distributed generation systems in the distribution systems can increase the level of short-circuit current. The effectiveness of distributed generation systems is affected by the size, location, type of distributed generation systems technology, and the methods of connecting to distribution systems. Wind turbine system is the examples of distributed generation source. Not only does...