Filtyp
We use randomness to exploit the potential sparsity of the Boolean matrix product in order to speed up the computation of the product. Our new fast output-sensitive algorithm for Boolean matrix product and its witnesses is randomized and provides the Boolean product and its witnesses almost certainly. Its worst-case time performance is expressed in terms of the input size and the number of non-zer
Current legislation regarding implementation of water mist system(s) requires full scale testing specific to its intended use which involves extensive funding that discourages potential users. This motivates the desire for accurate water mist simulation. The extent to this possibility is studied for a specific high pressure water mist system, “Danfoss 1910”, and its effect on controlled fires of d
In this study, sorption distribution coefficients were determined for 71 pharmaceuticals, aiming to describe their sorption behavior to powder activated carbon (PAC). The data are expected to be applied when designing and upgrading wastewater treatment plants (WWTP) for improved removal of pharmaceuticals by applying sorption to PAC as an additional removal technique. Sorption isotherms were deter
Denna examensuppsats resulterar med att principen om gemensamt men differentierande ansvar tillämpas med bästa resultat på det globala ansvaret att städa upp det fria havet från plastföroreningen, och att principen bekräftar att det föreligger ett historiskt ansvar för redan genomförda föroreningar av havet med plast. Även om uppstädningen är ett globalt samarbete är det industriländerna som har t
Inflationen har stigit kraftigt de senaste åren runt om hela jorden. Stigningen kom oväntat och överraskade både centralbanker och kapitalförvaltare. Detta har lett till kraftiga ränteökningar för att försöka dämpa inflationen till lägre nivåer. Kanske hade det gått att undvika dessa kraftiga ränteökningarna om man hade haft tillgång till estimat av inflation på förhand. Vi undersöker i detta exDifferent models were developed with the aim of nowcasting inflation at a daily basis with high frequency variables, while using real-time data to avoid look ahead bias. Both popular machine learning models such as Random Forest and XGBoost, and more traditional models such as UMIDAS and Almon distributed lag models were used to make the nowcasts. The MIDAS framework was utilized as a way of handl
Kravprofil, underlag till annons I rekryteringssystemet finns det plats för cirka 6000 tecken inklusive mellanslag. Kontrollera att texten inte blir för lång (i Word; markera texten, gå in på fliken Granska > Räkna ord). Lägg gärna in länkar för att ge information om verksamheten, projekt eller annan information istället för att beskriva i text. ____________________________________________________
https://www.hr-webben.lu.se/sites/hr-webben.lu.se/files/2025-12/Kravprofil%20doktorand.docx - 2026-05-30
Context: Magnetic resonance imaging (MRI) combined with magnetic resonance spectroscopy imaging (MRSI), dynamic contrast-enhanced MRI, and diffusion-weighted MRI emerged as promising tests in the diagnosis of prostate cancer, and they show encouraging results. Objective: This review emphasizes different functional MRI techniques in the diagnosis of prostate cancer and includes information about th
The plan for the final disposal of spent fuel front Swedish nuclear power plants is to place it in copper canisters that are sealed and stored in a deep repository. The canisters will be sealed by friction stir welding (FSW) and the reliability of this process has now been evaluated. The reliability study was performed in three steps: first an optimization experiment to identify optimal process se
Arrhythmic mammals are active both during day and night if they are allowed. The arrhythmic horses are in possession of one of the largest terrestrial animal eyes and the purpose of this study is to reveal whether their eye is sensitive enough to see colours at night. During the day horses are known to have dichromatic colour vision. To disclose whether they can discriminate colours in dim light a
This paper presents a novel approach to the problem of designing autonomous agents that is based on the idea of anticipatory systems. An anticipatory system has a model of itself and of the relevant part of its environment and will use this model to predict the future. The predictions are then utilised to determine the agent’s behaviour, i.e. it lets future states affect its present states. We arg
Extracting complementary features in parallel pathways is a widely used strategy for a robust representation of sensory signals. Weakly electric fish offer the rare opportunity to study complementary encoding of social signals in all of its electrosensory pathways. Electrosensory information is conveyed in three parallel pathways: two receptor types of the tuberous (active) system and one receptor
Arsenic is among the most toxic elements and it commonly exists in water as arsenite (As(III)) and arsenate (As(V)) ions. As(III) removal often requires a pre-oxidation or pH adjustment step and it is a challenge to adsorb As(III) at circumneutral pH. In this study, iron-aluminium double hydrous oxides were synthesized and incorporated into cryogels. The resulting composite cryogels were evaluated
The oceans mediate the response of global climate to natural and anthropogenic forcings. Yet for the past 2,000 years - a key interval for understanding the present and future climate response to these forcings - global sea surface temperature changes and the underlying driving mechanisms are poorly constrained. Here we present a global synthesis of sea surface temperatures for the Common Era (CE)
Mobility growth poses considerable challenges to city planners around the world, as it entails problems of congestion, air pollution, and accidents. Many cities have thus sought to increase the share of sustainable transport, and specifically travel by bicycle. However, it appears that measures to foster cycling are often implemented on an ad hoc basis, lacking strategic focus and a more profound
It is important that any patient with a urinary diversion can accept the psychological impact alongside the surgical and physical aspects. However, there are currently no validated methods or instruments available to allow direct measurement of this phenomenon in these patients. Health-related quality of life (HRQoL) is often high following different types of urinary diversion - this may suggest a
The dielectric procperties of MSWI bottom ash as a function of volumetric water content (VWC) are reported in this paper. The objective was to aid the development of microwave based non-invasive emission monitoring and control system for various bottom ash applications. The dielectric measurements were made, on a 1.5-year-old bottom ash, with an electrical network analyzer in microwave range (300
