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The characteristics of an Elekta amorphous silicon (a-Si) electronic portal imaging device (EPID) in response to a 6 MV photon beam generated without a flattening filter, an unflattened beam, have been determined. The characteristics were then compared to those for a conventional photon beam generated with a flattening filter in the beam, a flattened beam, in order to determine the suitability of
Current market trends for industrial automation are the need for customizable production, shorter time to market, and powerful global competitive pressure. Based on these trends two challenges have been identified: 1) flexible production systems and 2) integration and utilization of devices and software. Applications from both process automation, manufacturing, and robotics have been considered.
The theoretical findings of the thesis is composed of three parts, it consists of (i) a framework for social entrepreneurship, (ii) some pitfalls and success factors and (iii) a perspicuous design guide. These findings was a result of field research during a long time – more than 5 years, 2000-2005 – and the scientific purpose was to give a broad description and understanding of the research probl
he state-of-the-art understanding of activated sludge processes as summarized in activated sludge models (ASMs) predicts an instantaneous increase in the biomass activity (which is measured, e.g., by the corresponding respiration rate OUR, NUR, etc.) under sudden substrate concentration changes. Experimental data (e.g., short-term batch respiration experiments under aerobic or anoxic conditions) c
An economically sustainable process was developed for propionic acid production by fermentation of glycerol using Propionibacterium acidipropionici and potato juice, a by-product of starch processing, as a nitrogen/vitamin source. The fermentation was done as high-cell-density sequential batches with cell recycle. Propionic acid production and glycerol consumption rates were dependent on initial b
Consumers are pushing for higher data rates to support more services that are introduced in mobile applications. As an example, a few years ago video-on-demand was only accessed through landlines, but today wireless devices are frequently used to stream video. To support this, more flexible network solutions have merged in 4G, introducing new technical problems to the mobile terminal. New techniqu
Dina pengar – med och utan kollektivavtal Ta gärna reda på mer om olika kollektivavtalade förmåner genom att besöka saco.se, knegdeg.se, ersatt- ningskollen.se och minpension.se. Illustration: Kari Modén Uppdaterad jan 2022 Kollektivavtal – din försäkring genom hela karriären Den här skriften är för dig som är akademiker och som vill veta mer om vad ett kollektivavtal är och vad det kan betyda för
Industrial symbiosis is a collaborative approach that aims to enhance resource efficiency andsustainability by facilitating exchanges between industries and other societal actors. Traditionally,industrial symbiosis focused on optimizing physical resource flows, such as excess energy, wastematerials, and by-products. However, over time, the concept has expanded to also include, for example,collaborIndustrial symbiosis is a collaborative approach that aims to enhance resource efficiency and sustainability by facilitating exchanges between industries and other societal actors. Traditionally, industrial symbiosis focused on optimizing physical resource flows, such as excess energy, waste materials, and by-products. However, over time, the concept has expanded to also include, for example, coll
80 81F Å G E L Å R E T 2 0 2 4 F Å G E L Å R E T 2 0 2 4P R O J E K T P R O J E K T LU V R E LUVRE-projektet (Lund Uni- versity Vindel River Expedi- tion) startades 1963, vilket innebar att 2024 var det 62:a verksamhetsåret. Fokus för LUVRE-projektet ligger på övervakning och forskning kring fåglar. Dock studeras även insekter, träd och dägg- djur i fjällmiljön runt Gáv- tjávrrie/Ammarnäs, Lycksel
https://www.luvre.lu.se/sites/luvre.lu.se/files/2026-02/Luvre-178,%202025%20Fagelaret%202024.pdf - 2026-07-17
Tillämpad Miljövetenskap Schema Tillämpad Miljövetenskap HT 2015 Kursen består av föreläsningar, övningar och ett individuellt projektarbete som löper över hela kursperioden. Kursinformation, föreläsningar och annat material kommer att finnas på kurswebben: live@lund. Ni kommer att få användarnamn och lösenord skickat till er via email. Möten med handledare och kursledare är inte inlagda med exakt
https://www.cec.lu.se/sv/sites/cec.lu.se.sv/files/mven14_schema_ht15_v3.pdf - 2026-07-17
The electricity sector is in the beginning of a large shift from centralized dispatchable production to distributed variable production. With this necessary change, new challenges arise. One crucial challenge is related to upholding the system balance in the power grid. In this master thesis, a Battery Energy Storage System (BESS) has been implemented in an HVDC-system with large amounts of Wind P
Uppsatsen behandlar lagen (2017:310) om framtidsfullmakter, dess bakgrund, innehåll och verkningar. Institutet framtidsfullmakt är tänkt att stärka den enskildes möjligheter att styra över sin framtid i fall av försämrad mental kapacitet. Upprättandet av en framtidsfullmakt ska ske då den enskilde har beslutskompetens men träder i kraft först efter att denna kapacitet har gått förlorad till följd This thesis revolves around the law (2017: 310) on continuing powers of attorney; its background, content and effects. The continuing power of attorney is intended to strengthen an individual's ability to control their future in cases of impaired mental capacity. In order to establish a continuing power of attorney, the individual must hold a decision-making competence. However, the act only c
The valorization of lignin offers sustainable and renewable products and materials. For that reason lignin needs to be further analyzed although the various challenges this process implicates. The major obstacles in this field are lignin’s chemical heterogeneity, all the modifications in lignin’s chemical structure owing to its extraction method and purification process and the lack of appropriate
I takt med den växande digitaliseringen förändras förutsättningarna för arbetslivet och medarbetare ställer nya krav på sina arbetsgivare. Arbetet med Performance Management behöver förnyas för att möta framtidens behov. För att öka förståelsen för vad som får medarbetare att bli engagerade i sitt arbete, granskades IKEA och deras mål- och utvecklingsprocess. En elektronisk enkät skickades ut tillIn pace with the growing digitalization, the conditions for worklife and coworkers are in continuous change, which in turn changes the demands on the employees. The work with Performance Management needs to be updated to meet the requirements of the future. The purpose with this study is to achieve better understanding what makes coworkers engaged in their work in order to increase their performan
I samband med lantmäteriförrättningar där ersättningsbeloppet behöver framtas med hjälp av de värderingsmedel som Lantmäteriet eller utsedd värderingsman har att tillgå är det ytterst viktigt att ingångsparametrarna är korrekta. Då fastighetsregleringar där vinstfördelning blir aktuellt och där genomsnittsvärdeprincipen aktualiseras är det råtomtmarksvärdet som eftersöks. I värderingsutlåtandet reDuring land surveying operations, the amount of compensation needs to be calculated using the valuation means taken by the land surveyor or appointed appraiser. For this reason, it is important that input parameters are correct. As profit distribution is a pressing concern in relation to real estate regulations, raw land value is sought after. In this case, the responsible land surveyor reports fo
Context: We present an kinematical analysis of 90 F and G type dwarf, turn-off, and subgiant stars in the Galactic bulge. These stars were observed with high-resolution spectrographs during gravitational microlensing events This allowed for their ages, abundances, and radial velocities to be ascertained while they were significantly brighter. Plotting these stars as [C/O] vs [O/H], it is revealed
This thesis is trying to identify and give solutions for the problems occurring in polyurethane sport surfaces in Iraq where the climate is extremely warm and dusty. One of the most important problems (called the ‘maintenance’ problem) is that the polyurethane sport surface looks very dirty because of the dust, a couple of weeks after installation of the surface the dust particles penetrates the s
Optical diagnostics are remote non-intrusive sensing techniques. The thesis work concerns the use of OH and soot optical diagnostics for combustion research.Internal combustion (IC) engines are widely used for the generation of power and for transportation purposes. Soot emission, involving carbon particles that emanate from the combustion process, is one of major sources of pollutants in engine e
Background Self-management is the main concept constituting the foundation of follow-up care after heart transplantation. Self-efficacy is a foundation of self-management. Little is known about heart recipients’ experiences in relation to self-efficacy and self-management after heart transplantation. Aim The overall aim of this thesis was to explore uncertainty and self-efficacy as important aspecBackground Self-management is the main concept constituting the foundation of follow-up care after heart transplantation. Self-efficacy is a foundation of self-management. Little is known about heart recipients’ experiences in relation toself-efficacy and self-management after heart transplantation. Aim The overall aim of this thesis was to explore uncertainty and self-efficacy as important aspect
Background: A hip fracture is a common cause of morbidity, functional disability, and decreased health-related quality of life (HRQOL). With demographic changes showing a growing proportion of older people, hip fractures will be an increasing challenge for healthcare services in the future. Hip fractures threaten the independence of individuals in their everyday lives. In Sweden, more than one thiBackground: A hip fracture is a common cause of morbidity, functional disability, and decreased health-related quality of life (HRQOL). With demographic changes showing a growing proportion of older people, hip fractures will be an increasing challenge for healthcare services in the future. Hip fractures threaten the independence of individuals in their everyday lives. In Sweden, more than one thi
