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This thesis shows how artificial neural networks (ANNs) can be applied to predict geomagnetic activity from solar-wind data. It introduces and summarizes five papers where development of ANN models are reported, and where predictions of geomagnetic activity are discussed. The studies cover geomagnetic disturbances characterized by global-scale indices and geomagnetic variations that are locally ob

This paper provides a survey of the role of feedback control in embedded realtimesystems, presented in the context of a new EU/IST Network of Excellence, ARTIST2.The survey highlights recent research efforts and future research directions in the areasof codesign of computer-based control systems, implementation-aware embedded controlsystems, and control of real-time computing systems.

This book explores the historical, biblical, christological, trinitarian, and ecclesiological dimensions of soteriology in Jewish-Christian relations.

Arbetsmarknadens parter etablerade sig som kraftfulla aktörer på yrkesutbildningens område i början av 1940-talet med utgångspunkt från arbetsmarknadens krav och behov av utbildad arbetskraft. Huvuddelen av utbildningen skedde i företag på arbetsmarknadens villkor och kontakterna med andra delar av utbildningssystemet var mycket begränsad. Egentligen uppfattades yrkesutbildningen vid den tiden kna

The first Swedish edition of Emanuel Swedenborg's manuscript in neurology from 1720

Abstract not available

The term Anthropocene denotes a new geological epoch characterized by the unprecedented impact of human activities on the Earth’s ecosystems. While the natural sciences have advanced their understanding of the drivers and processes of global change considerably over the last two decades, the social sciences lag behind in addressing the fundamental challenge of governance and politics in the Anthro

MASTER (MAnaging Speeds of Traffic on European Roads) aims to provide re-commendations for speed management strategies and policies and develop guidelines for the development of innovative speed management tools. This document reviews the relevant literature and various Advanced Transport Telematics (ATT) and traditional (non-ATT) methods of reducing driver speed are evaluated. It is concluded tha

Research within contingency theory recognizes and postulates the relevance of contextual factors to the design of organizations. Thus organizations are dependent on the environments in which they operate and on the technologies they utilize. Organizations therefore need to process information about their environments and technologies. Information systems, including computerized information sytems,

Given a set U with n elements and a family of subsets S ⊆ 2^U we show how to count the number of k-partitions S₁ ∪ ... ∪ S_k = U into subsets S_i ∈ S in time 2ⁿn^O(1). The only assumption on S is that it can be enumerated in time 2ⁿn^O(1). In effect we get exact algorithms in time 2ⁿn^O(1) for s

The use of pilot symbols for channel estimation introduces overhead and it is thus desirable to keep the number of pilot symbols to a minimum. The number of needed pilot symbols for a desired bit error rate and Doppler frequency is highly dependent on the pilot pattern used in orthogonal frequency division multiplexed, OFDM, systems. Five different pilot patterns are analysed by means of resulting

In this paper we consider the problem of packet loss concealment for Voice over IP (VoIP). The speech signal is compressed at the transmitter using A sinusoidal coding scheme working at 8 kbit/s. At the receiver, packet loss concealment is carried out working directly on the quantized sinusoidal parameters, based on time-scaling of the packets surrounding the missing ones. Subjective listening tes