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Denna uppsats undersöker möjligheten att modellera fyra svenska oreglerade älvars vattenföring mellan 1980-2015 med hjälp av ARMA-, GARCH- och SETAR-modeller. Genom att studera den mängd vatten som transporteras i vattendrag och hur dess beroendestruktur ser ut i allmänhet kan förståelse om bland annat djurliv och klimateffekter fördjupas. Tidsseriens process behandlas som ett additivt system där This paper studies the possibility to model the water flows of four Swedish unregulated rivers between 1980-2015 with ARMA, GARCH and SETAR models. By examining the amount of water that flows through the river and what the dependence in the process looks like in general, a further understanding for effects on for example wildlife and climate changes can be developed. The process of the time series

Control systems used by manufacturing companies today are often centralized. In such a system, the controller is concentrated to one location. As the production lines in Tetra Pak becomes more and more complex with growing costumer demand, a centralized approach becomes more and more inadequate. Agent-based technology provides a way to implement a desirable, robust and decentralized manufacturing

Tillämpad Miljövetenskap Schema Tillämpad Miljövetenskap (MVEN14) HT 2017 Kursen består av föreläsningar, övningar och ett projektarbete som löper över hela kursperioden. Projektet utförs i grupp, men ni skriver individuella projektrapporter. Observera att alla moment i schemat som benämns redovisning är obligatoriska (projektledning, systemanalys och metaanalys). Även uppropet är obligatoriskt. D

https://www.cec.lu.se/sv/sites/cec.lu.se.sv/files/mven14_schema_ht17.pdf - 2026-07-23

Centre for Economic Demography Lund University School of Economics and Management P.O. Box 7080 SE-220 07 Lund, Sweden www.ed.lu/publications/Lund-Papers-in-Economic-Demography/ Stayers and Movers: A study on emigration from Sweden 1990-2014 DEBORA PRICILA BIRGIER, CHRISTER LUNDH, YITCHAK HABERFELD, ERIK ELLDÉR LUND PAPERS IN ECONOMIC DEMOGRAPHY 2021:5 http://www.ed.lu/publications/Lund-Papers-in-

https://www.lusem.lu.se/sites/lusem.lu.se/files/2024-07/LPED%202021%205.pdf - 2026-07-23

This is the report of the work for project Dagsljuskrav i miljöcertifierade byggnader" of the Swedish Energy Agency, project number: 39682-1. The study was focused on the energy use and daylight conditions in the multi-family building Greenhouse located in Malmö, Sweden. The aim of the study was first to analyze and develop innovative design solutions for multi-family dwellings with good daylighti

Factors influencing the effect of pilot-injection on main-injection combustion were investigated using heat release analysis in a heavy-duty diesel engine fuelled with standard diesel fuel, and included the effect of those factors on engine performance and emissions.Combinations of pilot injection parameters i.e. pilot start of injection, pilot mass, pilot-main injection separation, and rail pressFactors influencing the effect of pilot-injection on main-injection combustion were investigated using heat release analysis in a heavy-duty diesel engine fuelled with standard diesel fuel, and included the effect of those factors on engine performance and emissions.Combinations of pilot injection parameters i.e. pilot start of injection, pilot mass, pilot-main injection separation, and rail press

IMPORTANCE The clinical management of BRCA1 and BRCA2 mutation carriers requires accurate, prospective cancer risk estimates. OBJECTIVES To estimate age-specific risks of breast, ovarian, and contralateral breast cancer for mutation carriers and to evaluate risk modification by family cancer history and mutation location. DESIGN, SETTING, AND PARTICIPANTS Prospective cohort study of 6036 BRCA1 and

The paper analyses dwell time delays for commuter trains in Stockholm andTokyo. In both cities, small dwell time delays of at most five minutes makeup around 90% of the total delays. Therefore, it is valuable to understandand deal with these disturbances. To this end, we use high resolution data ondwell times and passenger counts from both countries over the last severalyears. We find that these d

Recently, seven Earth-sized planets were discovered around the M-dwarf star TRAPPIST-1. Thanks to transit-timing variations, the masses and therefore the bulk densities of the planets have been constrained, suggesting that all TRAPPIST-1 planets are consistent with water mass fractions on the order of 10%. These water fractions, as well as the similar planet masses within the system, constitute st

The Tröger’s base framework has been implemented in two different receptors. The first of these receptors,incorporating two 18-crown-6 moities, was used as a host in a binding study together with a sieries of bisammonium salts that yielded different binding constants that were then used as a benchmark to compare different computational methods (Molecular Mechanics (MM) and Density Functional TheorThe Tröger’s base framework has been implemented in two different receptors. The first of these receptors, incorporating two 18-crown-6 moities, was used as a host in a binding study together with a sieries of bisammonium salts that yielded different binding constants that were then used as a benchmark to compare different computational methods (Molecular Mechanics (MM) and Density Functional Theo

European Spallation Source (ESS) will deliver neutrons at high flux for use in diverse neutron scattering techniques. The neutron source facility and the scientific instruments will be located in Lund, and the Data Management and Software Centre (DMSC), in Copenhagen. A number of detector prototypes are being developed at ESS together with its European in-kind partners, for example: SoNDe, Multi-G

Provupparbetning är ett viktigt steg i många metoder för kemisk analys.Detta gäller framförallt fasta prover då de kemiska ämnena som avses för analys, även kallade analyter, måste extraheras ut. Det vill säga att genomföra en överföring av analyter från provet till ett lösningsmedel. Därefter kan halten bestämmas med de metoder som ofta finns till hands i ett analyslaboratorium. I de fall då fettSupercritical fluid extraction is an extraction technique suitable for lipophilic compounds from solid samples. Most commonly supercritical carbon dioxide is the main component in the extraction phase, rendering the technique relatively environmentally benign. The extraction technique is rapid due to the low viscosity and the high diffusivity of analytes in the supercritical extraction phase.The s

A key question for evidence-based medicine (EBM) is how best to model the way in which EBM should “[integrate] individual clinical expertise and the best external evidence” (Sackett et al. 1996). We argue that the formulations and models available in the literature today are modest variations on a common theme and face very similar problems. For example, both the early and updated models of eviden

We describe the process of building a climate service centred on regional climate model results from the Rossby Centre regional climate model RCA4. The climate service has as its central facility a web service provided by the Swedish Meteorological and Hydrological Institute where users can get an idea of various aspects of climate change from a suite of maps, diagrams, explaining texts and user g

Finding a suitable way to represent information in a dataset is one of the fundamental problems in Artificial Inelegance. With limited labeled information, unsupervised learning algorithms help to discover useful representations. One of the applications of such models is imputation, where missing values are estimated by learning the underlying correlations in a dataset. This thesis explores two ofFinding a suitable way to represent information in a dataset is one of the fundamental problems in Artificial Intelligence. With limited labeled information, unsupervised learning algorithms help to discover useful representations. One of the applications of such models is imputation, where missing values are estimated by learning the underlying correlations in a dataset. This thesis explores two

Eutrophication is one of the most serious global threats to coastal areas. One effect of eutrophication is seasonal macroalgal blooms. As a consequence, large amounts of beach-cast algae are today reported from coastal areas worldwide. In this study, we analyze nonmarket benefits by capturing local residents' Willingness To Pay (WTP) for an environmental program to regularly remove and utilize bea