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Det pågår just nu en omställning från fossila till förnyelsebara energiresurser. Exempel på förnyelsebara resurser är sol-, vind- och vattenkraft. Problemet är att energiproduktionen är beroende av att solen skiner, vinden blåser eller att vattnet flödar. Lösningen kan vara att lagra energin i smältsalter. I det här projektet utvecklades metoder för att internt kunna studera smältsaltskorrosion avMolten salt applications are challenging from a material perspective. This degree project was carried out at Alfa Laval to give them a better understanding of the corrosion of solar salt on the standard heat exchanger material stainless steel 321. Similar tests have previously been performed externally. By developing test methods for in-house corrosion testing time and money can be saved. In thi

In 2018, images of migrant children held in cages and sleeping on concrete floors while being held in immigration detention in the United States shocked the world. Within the framework of the zero tolerance policy on immigration mandated by President Trump, thousands of families have been separated at the border. The trauma borne out of these separations was purposefully capitalized upon to serve

Purpose: In this study, we examine the data from Chinese companies to test the relationship between cash flow and investment. While a wide assortment of previous research has examined the relationship between cash flow and investment, they have largely focused on empirical analysis from an US or a Western perspective. But, to date, little attention has been paid to such relationship using empirica

High-order harmonic generation (HHG) is a highly nonlinear optical process in which extreme ultraviolet (XUV) radiation is generated due to the interaction of an intense laser field with atoms. This process enables the production of high harmonics, which would not be achieved with standard nonlinear media. The utilization of two-color laser fields (formed by combining a fundamental field with one

Spx or why bacteria don’t suffer from burnout Bacteria also suffer from stress. In general, any fluctuation in the environment of bacteria can cause stress on them. For instance, too hot or too cold temperature, or changes in the pH. In order to survive, they need mechanisms to cope with it. Most of these mechanisms involve proteins, which can be seen as tools that respond to stress. In the bac

Europeiska unionens kommande utmaning av att möta och bekämpa klimatförändringar har resulterat i att frågan om vilka förutsättningar som finns för att beakta hållbarhetsaspekter inom ramen för tillämpningen av unionens konkurrensregler hamnat alltmer i fokus. Den 1 juni 2023 antog Europeiska kommissionen reviderade riktlinjer för tillämpningen av artikel 101 i fördraget om Europeiska unionens funThe European Union’s upcoming challenge in addressing and combating climate change has brought the question of under which conditions sustainability aspects can be considered in the application of the Union’s competition rules increasingly into focus. On June 1, 2023, the European Commission adopted revised Guidelines on the applicability of Article 101 of the Treaty on the Functioning of the Euro

Universities have become important components of the national innovation systems in innovation driven economies. To strengthen the university related flow of mainly technological knowledge into commercialized products many European countries have followed the American example and changed from an inventor-ownership system to a university-owned system (Genua & Rossi, 2011). Today most European c

This doctoral dissertation presents the development and digital hardware realization of cardiac event detectors. Implantable medical appliances, as the cardiac pacemaker, have progressed from a life sustaining device to a device that considerably improves life quality for all ages. The number of electronic devices and household appliances in everyday live has an ongoing exponential growth. The

Lipid oxidation is a major problem in muscle foods, leading to a loss in quality and nutritional value. It occurs in raw meat but is usually more pronounced in cooked meat. Since the demands of consumers for ready-to-eat foods have increased, the control of off-flavour in cooked meat is an important industrial problem. One way of minimising the development of lipid oxidation is to optimise the act

Denna avhandling studerar faktorer som påverkar rekryterare då de skall välja bland jobbsökande med olika etnisk bakgrund. Generellt förväntades att de sökandes etnicitet skulle påverka rekryterares val och deras uppfattning om vad som är viktigt att ta fasta på hos en arbetssökande person, och att detta kan ske i olika faser av rekryteringsprocessen.Studie 1 visade att företagsnormer påverkar rekThe present thesis aimed to study different factors influencing recruiters when recruiting from an applicant pool with applicants from an ethnic ingroup and outgroup. Ethnicity was predicted to influence recruiters’ perception and behaviour in different phases during recruitment. Study I demonstrated that company norms affect recruiters’ perception of what an employee should be like. Company norms

Detecting gene targets of glucocorticoids in pancreatic beta cells by bioinformatics approaches The pancreatic beta cells (β-cells) are the cells that synthesize and secrete insulin, the hormone that is responsible for controlling the blood sugar levels in the body. Studies have revealed that a certain group of drugs, called glucocorticoids (GCs), despite being widely prescribed against various p

A powerful cartel forces customers to pay significantly more for products and eliminates competition since its participants do not need to improve their productivity or the quality of their products. Cartels have historically exercised great influence over the international economy. During the inter-war period cartels were so powerful that economists have estimated that international cartels contr

The issue of possession of the air has been debated over literally thousands of years. The Romans debated the ownership of the air above their cornfields. When man finally could construct aircraft, in this case a balloon, heavier-than-air in the 1780's it did not take long before the first regulation came into force. The issue of state sovereignty had been discussed since the national states s

High Arctic wetlands are an important component of the global climate system. Nevertheless estimations of their expected response to climate change and associated climate-feedbacks have large uncertainties. Improving models for vegetation and carbon dynamics of ecosystems is an important step towards making predictions more accurate. In this study, an arctic-enabled version of the LPJ-GUESS dynam

Objectives: To investigate the effect of prolonged neutralisation of tumour necrosis factor alpha (TNFalpha) on the radiological course in rheumatoid arthritis (RA). To assess whether the radiological course can be predicted by clinical variables or biological markers of cartilage and synovium turnover and of endothelial activation. Patients and methods: Forty seven patients with active RA enrolle

Background: There is a lack of validated tools to assess potential disease progression and hospitalisation decisions in patients presenting to the emergency department (ED) with a suspected infection. This study aimed to identify suitable blood biomarkers (MR-proADM, PCT, lactate and CRP) or clinical scores (SIRS, SOFA, qSOFA, NEWS and CRB-65) to fulfil this unmet clinical need. Methods: An observ

The Internet of Things (IoT) is a large network of connected devices. In IoT, devices can communicate with each other or back-end systems to transfer data or perform assigned tasks. Communication protocols used in IoT depend on target applications but usually require low bandwidth. On the other hand, IoT devices are constrained, having limited resources, including memory, power, and computational

We consider the fundamental problem of assigning distinct labels to agents in the probabilistic model of population protocols. Our protocols operate under the assumption that the size n of the population is embedded in the transition function. Their efficiency is expressed in terms of the number of states utilized by agents, the size of the range from which the labels are drawn, and the expected n

Many medical schools and faculties are actively promoting scholarly inquiry into teaching and learning to improve education. The Faculty of Medicine at Lund University, Sweden, has developed a Teaching Academy with criteria for membership founded in Scholarship of Teaching and Learning (SoTL). Furthermore, the Faculty arranges a conference in medical education and also organises courses to support

Popular Abstract in Swedish Med magnetkamera (magnetresonans, MR) kan utmärkt morfologisk information erhållas men tekniken är även användbar för funktionella studier. En funktionell tillämpning är att mäta perfusion (kapillära blodflöden). Perfusionsrelaterad information kan åskådliggöras på flera sätt med MR, ofta via signalförändringar orsakade av spårämnen eller kontrastmedel i blodet. Den teThe studies presented in this thesis concern the optimisation and evaluation of the dynamic susceptibility contrast magnetic resonance imaging (DSC-MRI) technique for the assessment of perfusion-related parameters of the brain, such as cerebral blood flow (CBF), cerebral blood volume (CBV) and mean transit time (MTT). Several methodological factors influence these measurements, for example, contra