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The streaming instability provides an efficient way of overcoming the growth barriers in the initial stages of the planet formation process. Considering the realistic case of a particle size distribution, the dynamics of the system is altered compared to the outcome of single size models. In order to understand the outcome of the multispecies streaming instability in detail, we perform a large par
Den svenska transportsektorn står för ungefär en tredjedel av landets totala utsläpp av växthusgaser och släppte 2019 ut 16,4 Mt CO2-ekvivalenter. Av dessa står den tunga vägtrafiken för cirka 20 % och är efter passagerarfordonen den största källan till utsläpp av växthusgaser inom sektorn. I och med FN:s klimatpanels återkommande rapporter om klimatförändringen och den Europeiska Unionens nya kliThe Swedish transport sector accounts for roughly a third of the country’s total emissions of greenhouse gases, emitting 16.4 Mt CO2-equivalents in 2019. Of these emissions, the heavy road traffic accounts for 20 % and is the sectors largest source of greenhouse gas emissions after the passenger vehicle fleet. With the Intergovernmental Panel on Climate Change's recurring reports on the climat
Over the past decade, Chinese migration to Africa has increased rapidly alongside the expansion of Chinese economic engagement with the continent. The entrance of new forms of Chinese industry, aid, commerce and resource exploration has been transformative, prompting debates over whether China in Africa is better described as neo-colonialism or a new form of beneficial developmenta
In this paper we focus on the many extreme credit default swap spread movements observed during the recent credit crisis. We find that the tails of the spread (and price) change distribution differ significantly from those of the normal distribution even for diversified credit derivatives portfolios. Particular focus is put on the sudden shift in the behavior of the credit default swap market in t
Slam från konventionell avloppsvattenrening innehåller näringsämnen samt mullbildande ämnen vilket medför att materialet utgör en resurs som växtnäring och jordförbättringsmedel. Problematiken med att använda slam är att det även innehåller främmande ämnen som metaller och svårnedbrytbara organiska föreningar. Syvab är ett kommunalt bolag som driver Himmerfjärdsverket men ansvarar också för någrSludge is produced in conventional waste water treatment. The sludge contains nutrients and humic formaing substances which make it useful as a fertilizer. The problem with using sludge is that it also contains toxicants as heavy metals and persistent organic compounds. Syvab is a municipal owned corporation that manage the wastewater treatment plant Him-merfjärdsverket. Since August 2010 Himmer
This paper will examine the forecast ability of different parametric and non-parametric estimation approaches used for Expected Shortfall (ES). As the financial institutions start to shift towards using ES as a risk measure instead of Value at Risk (VaR), the importance of being able to forecast ES increases. The Paper considers Basic Historical Simulation (BHS), Age-Weighted Historical Simulation
The purpose of this work was to use spatial-temporal analysis for the prevention and mitigation of disease spread. A prototype application was specifically designed to detect territories with a high incidence of cases and a second was used to validate the results. The first algorithm tried to find clustered cases territories and compare them to the smooth average of the previous two years of data
To run a Diesel engine in Homogeneous Charge Compression Ignition (HCCI) mode has proved to be a highly promising approach towards reduced engine-out emissions of NOx and particulate matter. A crucial issue when utilizing HCCI is the degree of charge homogeneity that is required to achieve the desired low temperature combustion. A very well mixed charge can be created through the use of traditiona
EC-Earth - A European community Earth System Model Global climate models and Earth system models are numerical models of the Earth's climate system and are used to understand how the Earth's various components, including the atmosphere, oceans, land surface, biosphere, and cryosphere, interact with each other and how they respond to natural and human-induced changes. These models simulate the phys
Multi-story apartment buildings, also known as multi-family or multi-unit residential buildings, represent the largest share of newly constructed, residential floor area in Norway, Sweden and Finland. Since the start of 2021, these buildings are required to be nearly-zero-energy under the Energy Performance of Buildings Directive. However, there has been limited research into defining solution-set
Detta arbete kick-startar AI (artificiell intelligens) för ledningsunderhåll i VA-branschen i Sverige. Arbetet med befintliga VA-nät är idag främst reaktivt; man reparerar läckor vartefter man blir varse dem, ibland till stora kostnader om läckan är omfattande och akut. Med denna artikel vill vi sätta fokus på proaktivt arbete med ledningsnät och diskutera riskanalys inom området. En ANN-modell soThis work kick-starts AI (artificial intelligence) for pipe management among Swedish water utilities. The current work with pipe management is mainly reactive; leaks are repaired after they are detected, sometimes with large costs if the leakage is extensive and critical. With this article, we want to focus on proactive pipe network management and discuss risk analysis in the field. A previously d
The modern consumers live in a transparent world with unlimited information and consumers adopt information strategies around who they trust and this is based on their values and experiences of food. Consumer question the information provided by the authorities and seek other sources of information such as the Internet and fellow consumers. There is a need for this consumer perspective in value ch
Histidine (His) residues in proteins can attain three different protonation states at normal pH. This constitutes a prominent problem when adding protons to a protein crystal structure, e.g. in order to perform molecular simulations. Typically, the His protonation is deduced from the hydrogen-bond pattern in crystal structures. Here, we study whether it is possible to detect erroneous His protonat
Lathund inför disputation Soc io log iska ins t i tu t ionen Från slutseminarium till disputation – för doktoranden För blanketter och mer detaljerad information om tryckning, spikning etc., se Samhällsvetenskapliga fakultetens hemsida. https://www.sam.lu.se/internt/forska- och-utbilda/forskarutbildning/disputation Slutseminarium Samtliga avhandlingsmanus vid sociologiska institutionen ska behandl
https://www.soc.lu.se/sites/soc.lu.se/files/2025-02/Lathund_infor_disputation_Doktorander_20241211.pdf - 2026-08-18
Professor Kontaktinformation E-post: sofia [dot] feltzing [at] mgeo [dot] lu [dot] seOrganisation Miljö- och geovetenskapliga institutionen (MGeo) Hämtställe: 16 WebbplatsSofia Feltzings profil i Lunds universitets forskningsportalPersonlig webbplats:https://www.geology.lu.se/sofia-feltzingAndra roller Skyddsombud Miljö- och geovetenskapliga institutionen (MGeo) Medlem i Strategiskt forskningsområ
https://www.geologi.lu.se/sofia-feltzing - 2026-08-17
Background: Internal communication is widely accepted as an elementary factor for venture growth, arguably an even more dominant factor than external influences. As companies highly differ, the implemented internal communication systems, which prove to be adequate for company needs vary. The internal communication systems additionally vary at different stages of company growth. The gap in research
Complexation between multiple weak polyacid chains and a positively charged spherical nanoparticle has been studied by means of Monte Carlo simulations. By considering titration curves, it is found that variations in the polyacid chain length and concentration and the polyacid-to-nanoparticle mixing ratio influence the ionization of the system. For larger mixing ratios and longer chain lengths, th
Professor Kontaktinformation E-post: sofia [dot] feltzing [at] mgeo [dot] lu [dot] seOrganisation Miljö- och geovetenskapliga institutionen (MGeo) Hämtställe: 16 WebbplatsSofia Feltzings profil i Lunds universitets forskningsportalPersonlig webbplats:https://www.geology.lu.se/sofia-feltzingAndra roller Skyddsombud Miljö- och geovetenskapliga institutionen (MGeo) Medlem i Strategiskt forskningsområ
https://www.mgeo.lu.se/sofia-feltzing - 2026-08-17
