Filtyp
The recently developed Phase-Scaled Reassignment (PSR) can estimate phase-difference between two oscillating transient signals with high accuracy. However, in low signal-to-noise ratios (SNRs) the performance of commonly applied reassignment techniques is known to deteriorate. In order to reduce variance in low SNR, we propose a multitaper PSR (mtPSR) method for phase-difference estimation between
Coherence is a useful measure in many engineering applications. Here, we focus on the case where the input signal to a linear system can be measured free from noise, but the output signal is perturbed by noise. A novel expression for the expectation of a multitaper magnitude squared coherence estimate for this case is presented and verified through numerical evaluation. Additionally, the expressio
In the literature, auditory attention is explored through neural speech tracking, primarily entailing modeling and analyzing electroencephalography (EEG) responses to natural speech via linear filtering. Our study takes a novel approach, introducing an enhanced coherence estimation technique to assess the strength of neural speech tracking. This enables effective discrimination between attended an
This study uniquely combines advanced continental-scale data fromtwo distinct sources: pollen-based land cover (PbLC) and ancient DNA(aDNA), developing a novel statistical model for spatiotemporal reconstructionsof past land use across Europe.The aDNA data serves as a proxy for human habitation, differentiatinganthropogenic and natural land cover from PbLC reconstruction. Thiswill be accomplished
Time-frequency reassignment, commonly used to analyze time-varying signals, is a post-processing method that sharpens time-frequency representations. However, the reassignment method is sensitive to noise, making it unsuitable for time-frequency analysis when the signal-to-noise ratio is low. To increase the robustness of the reassignment technique, we develop a novel reassigned multitaper spectro
https://www.ehl.lu.se/anders-anell - 2026-08-31
INTRODUCTIONBoreal forests are crucial for mitigating global climate change by capturing and storing large amounts of atmospheric carbon dioxide. However, previously unmanaged primary boreal forests are being rapidly transformed to managed secondary forests to meet the rising global demand for materials and energy. Understanding the effects of boreal primary to managed secondary forest transformat
Boreal forests are globally important carbon (C) sinks, but strategies for maximising their climate benefit remain under debate. Major uncertainties in this discussion arise from contrasting sink-source estimates, which largely emanate from inherent limitations of standard measurement techniques to distinct spatio-temporal scales. Here, we use a spatially-nested measurement framework that integrat
Understanding the dynamics of post-fire carbon recovery is critical for managing boreal forests under climate change. This study evaluates the LPJ-GUESS-BLAZE models’ performance in simulating vegetation structure, fire emissions, and post-fire carbon dynamics at the stand scale in a boreal forest in Sweden. Combining current climate and future scenarios (SSP1–2.6, SSP5–8.5), we investigated the i
In order to answer the question in the title, a cross-cultural analysis of two countries was done. Countries chosen were the Republic of Latvia and the Kingdom of Spain. The need for this research was suggested by increased cross-border business activities inside the European Union, and the lack of previous studies involving new Member States. The aim of the research was to see what environmental
Vårt syfte med denna uppsats är att beskriva och analysera hur styrverktyget Dolphin kan användas för att styra intellektuellt kapital samt att analysera om Dolphins styrning av det intellektuella kapitalet kan skapa ett mervärde för de anställda. Vår analys grundar sig på littersturstudier samt en kvalitativ studie av två företag. Vi har använt oss av en abduktiv metod. Vår slutsats är att styrni
BACKGROUND: Tau pathology distribution in Alzheimer's disease (AD) shows individual spatial heterogeneity, including hemispheric asymmetry. The mechanisms underlying this asymmetry remain unclear. This study explored whether tau asymmetry is linked to reduced inter-hemispheric connectivity, potentially restricting tau spread, or reflects asymmetry in amyloid-beta (Aβ) distribution, indicating hemi
X-ray photoelectron emission microscopy (XPEEM) was used in combination with other microscopic and spectroscopic techniques to follow the surface development of an aluminum brazing sheet during heating. The studied aluminum alloy sheet is a composite material designed for vacuum brazing. Its surface is covered with a native aluminum oxide film. Changes in the chemical state of the alloying element
ABSTRACT Title: Corporate strategy in the Swedish market for payment solutions for e-commerce. A case study on competition. Seminar date: 2012-06-01 Course: FEKH95, Degree Project Undergraduate level, Business Administration, Undergraduate level, 15 University Credits Points (UPC) or ECTS-cr. Authors: Christina Ericsson, Christian Green, Johanna Nielsen Advisor: Claes Svensson Key words: Corp
Internettjänsteleverantörer är en grupp aktörer som har ägnats stor uppmärk-samhet inom ramen för upphovsrätten. Dessa aktörer är nämligen, av flera anledningar, intressanta att rikta såväl civilrättsliga som straffrättsliga krav mot med anledning av upphovsrättsintrång som begås på internet. Den öka-de svårigheten att komma åt ursprungskällan vid brott på internet är en bi-dragande faktor till vaInternet Service Providers (ISP:s) have been widely discussed in the ambit of copyright law. This group of service providers is namely, from many points of view, more interesting to pursue, when it comes to illicit material posted on the internet, than the actual source of the content. The increased difficulty to find the actual perpetrator is a contributory reason for why cop-yright owners choose
Syfte: Vårt syfte är att analysera medarbetarsamtal ur aspekterna samtalsmetodik, medarbetarsamtalets struktur, genus, företagskultur och utbildning samt ledarskap för att se dess betydelse för samtalet. Frågeställningar: Våra frågeställningar är vilka behov det finns för medarbetarsamtal, hur samtalen uppfattas av medarbetarna, hur grunden läggs till givande och utvecklande samtal samt vilka svår
Frågeställningar: På vilket sätt påverkas personalens arbetsmotivation av personalkostnadsbesparingar? Vilken betydelse har arbetsmotivationen vid personalkostnadsbesparingar för det finansiella resultatet på kort och lång sikt?
