A large number of network services use IP and reliable transport protocols. For applications with constant pressure of data, loss is handled satisfactorily, even if the application is latencysensitive. For applications ...

For å spare strøm og redusere oppheting kjører moderne prosessorer på lavere frekvens enn de tidligere prosessorene. Produsentene kompenserer performansetapet ved å innpakke flere kjerner i en brikke som da kan kjøre flere ...

I medisinsk ultralydavbildning, og i avbildningsystemer generelt, er det et stadig ønske om å oppnå høyere oppløsning og bedre bildekvalitet. I denne avhandlingen presenteres teknikker for å imøtekomme dette ved hjelp av ...

Left ventricular (LV) volumes and ejection fraction (EF) are important parameters for diagnosis, prognosis, and treatment planning in patients with heart disease. These parameters are commonly measured by manual tracing ...

The theme of this thesis is the use of the bidomain equations for modeling the electrical activity in the human heart, and the pursuit of ways to use these equations for medical applications. The first paper investigates ...

Verifying the identity of a user, usually referred to as user authentication, before granting access to the services or objects is a very important step in many applications. People pass through some sorts of authentication ...

This thesis presents a new multiple-valued encoder with re-configurable radix. The proposed circuits utilize serial cyclic D/A conversion and semi floatinggate (SFG) inverters for compact design and a high functional ...

Evolvable hardware (EHW) is a method where hardware is designed and/or modified automatically by optimization algorithms called evolutionary algorithms (EAs). The results so far are promising but somewhat limited partly ...

The dissertation identifies and discusses impact of a model-based approach to teaching and learning introductory object-oriented programming both for practitioners and for computer science education research.Learning to ...

Multiple-input multiple-output (MIMO) wireless communication systems have been studied a lot in the last ten years. They have many promising features like array gain, diversity gain, spatial multiplexing gain, interference ...

Probability often plays a major role in the specification of computer systems, for a number of reasons. Probabilistic requirements are, of course, essential for specifying applications such as games of chance or probabilistic ...

The core concept of Free Open Source Software (FOSS) is that full access to software source code must be granted in order to give individuals the freedom to create, use and distribute software. It emphasises the logic of ...

This thesis addresses the following question: What can be better ways of realizing network simulators and emulators? This question presents a moving target, since the meaning of “better” changes with changes in requirements ...

This thesis is concerned with operational analysis of UML 2.x sequence diagram specifications. By operational analysis we mean analysis based on a characterization of the executions of sequence diagrams, or in other words ...

Expo-Rational B-splines (ERBS) is a new geometric representation for use in complex shaping/design. The special about ERBS is that it is based on local blending of local geometry. The development of ERBS started in 2003. ...

The contents of the work may be divided in two parts. In the first part we deal with the computation of the arc-lengths of curves and the areas of surfaces. The second part considers the problem of reparametrizing a ...

The Internet is increasingly used to transport time-critical traffic. Applications like video conferencing, television, telephony and distributed games have strict requirements to the delay and availability offered by the ...

Background: Like any research discipline, software engineering research must be of a certain quality to be valuable. High quality research in software engineering ensures that knowledge is accumulated and helpful advice ...

Interconnection networks were traditionally confined to multiprocessors where low latency and high bandwidth were necessary for interprocessor communication. But in the last decade interconnection networks have become ...

The first commercial Cochlea implant was released in 1982. In the following ten years the implants were significantly improved, and has now become a common aid for individuals with severe to profound hearing loss. Briefly ...

"The CORAS language is a graphical modeling language used to support the security analysis process with its customized diagrams. The language has been developed within the research project "SECURIS" (SINTEF ICT/University ...

STAIRS is a method for the step-wise, compositional development of interactions in the setting of UML 2.x. UML 2.x interactions, such as sequence diagrams and interaction overview diagrams, are seen as intuitive ways of ...

The Universal Mobile Telecommunication Services (UMTS) network was envisioned to carry a wide range of new services; however, the first UMTS release was not designed to efficiently support multimedia content. In this thesis ...

This doctoral thesis contains a collection of five papers preceded by an introduction. The papers investigate channel models for, design of, and performance analysis of wireless multiple-input multiple-output (MIMO) systems ...

With the wireless media and ad hoc nodes operating both as routers and communication end-terminals, the ad hoc routing protocols are more prone to attacks than the network layer of fixed networks. Authenticated routing ...

The request for on-line privacy is rapidly increasing. More and more Internet users realize that information about their on-line activities is highly valuable information for commercial companies and open for potential ...

This thesis presents an interpretative study of technology use. It attempts to deepen our understanding of the relationship between users and the equipment they use. In particular, it tries to address the ways in which the ...

With background in the proliferation of Information- and Communication Technologies(ICTs) in educational institutions, there is a growing interest in deploying ICT that complies with specifications and standards for learning ...

In this thesis, signal processing is performed on the output from the pulsed laser photoacoustic instrument monitoring crude oil in water. The instrument is constructed to perform inline monitoring of produced water in the ...

The results in these thesis show that text independent speaker recognition in a speech utterance composed of several speakers based on a coarse average of the cepstrum coefficients will not give a satisfactory result. ...