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INTRODUCTION In the last years a lot of researches about source separation have been realized, like extraction of a signal of interest (vocal recognition application), identification of which source gives which sound (motor engine applications) or noise source characterization (environmental application). Most of these techniques for sound source estimation use the signal-subspace approach, where
The thesis is an attempt to analyse the concept of limitation of liability for maritime claims with multiple legal and policy perspectives. In trying to analyse the issues related to limitation of liability, the thesis explores the historical background to the development of the concept of limitation of liability within both civil and common law. A synoptic overview on the development of intern
Precision agriculture requires detailed information regarding the crop status variability within a field. Remote sensing provides an efficient way to obtain such information through observing biophysical parameters, such as canopy nitrogen content, leaf coverage, and plant biomass. However, individual remote sensing sensors often fail to provide information which meets the spatial and temporal res
Due to the ongoing urbanisation, the urban environment will consist of extended impervious areas, such as roof tops, roads and parking lots. During rainfall events these kinds of impermeable areas will cause a faster and larger response in runoff, which can lead to an increased load on the storm-water system and thus increase the risk of flooding. In certain areas, the situation will be further wo
A methodology is produced for environmental and health risk assessment for road transports of hazardous material. The general risk management process with focus on health and environment is described briefly. Management systems, risk communication and uncertainty in the risk management process are also discussed in this context. The produced methodology is implemented in a case study in Iceland. T
The purpose of this research was to examine how non-mandatory municipal environmental work is carried out. What drives certain municipalities to be more active than others, and what works as barriers? It was also of interest to understand if the mandatory work could influence, trigger or hinder other environmental goals and ideas. Further, the research looked to identify some characteristics that
Energy security is revealed to be one of the most urgent issues for the Ukraine and the key driver for the diversification of its energy sources. The country is shown to have significant potentials for renewable energy sources, and specifically for biomass. The development of bioenergy options is believed to help the Ukraine combat its energy security problem and bring a number of economic, social
The mechanisms by which gestational infections, blood incompatibility, birth weight, mother's age and other prenatal or neonatal events increase the risk for type 1 diabetes are not understood. Studies so far have been retrospective, and there is a lack of population-based prospective studies. The possibility identifying children at type 1 diabetes risk among first-degree relatives has resulted in
We present a software solution that enables faster and more accurate data analysis of 2DE/MALDI TOF MS data. The software supports data analysis through a number of automated data selection functions and advanced graphical tools. Once protein identities are determined using MALDI TOF MS, automated data retrieval from online databases provides biological information. The software, called 2DDB, redu
A set of simple analytical equations, derived from the Flory-Huggins theory, are used to identify the dominant driving forces for phase separation and solute (e.g., protein) partitioning, in the absence and presence of added electrolyte, in every general class of aqueous two-phase systems. The resulting model appears to capture the basic nature of two-phase systems and all trends observed experime
Computer generated imagery is used in a wide range of disciplines, each with different requirements. As an example, real-time applications such as computer games have completely different restrictions and demands than offline rendering of feature films. A game has to render quickly using only limited resources, yet present visually adequate images. Film and visual effects rendering may not have st
It is well established that female choice may lead to sexual selection on quality-revealing ornaments in males. However, in many species, both sexes display conspicuous characters, which may reflect individual quality and condition. We examined the correlations between measures of individual condition, reproductive performance and variation in size and whiteness of white wing patches in both sexes
The recent progress in our work to implement salt (NaCl) as a dosemeter is presented. Laboratory investigations have indicated a linear dose response from 1 mGy to about 100 mGy and detection limits down to 0.1 mGy. Investigations in the clinic comparing TL-dosimetry in LiF and OSL in NaCl have indicated a similar dose response for the two dosemeters at different photon energies. Field studies wit
Cold sensitivity is a common and persistent complaint after various hand injuries and diseases. The general aim of the thesis was to investigate the consequences of cold sensitivity for daily life in patients with traumatic hand injuries and hand-arm vibration syndrome (HAVS). To obtain a richer and more comprehensive picture reflecting the aim, studies with a quantitative and a qualitative design
This study examined the effects of the use of clinical risk factors (CRFs) alone, BMD alone or the combination using the FRAXA (R) tool for the detection of women at risk of hip fracture. BMD tests alone selected women at higher risk and a greater number of hip fracture cases were identified compared to the use of CRFs alone. The combined use of CRFs and BMD identified fewer women above a threshol
