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På grund av energiomställningen, Sveriges mål om att ha en fossilfri elproduktion 2040 samt målet om nettonollutsläpp av växthusgaser 2045 förväntas en omfattande utbyggnad av förnybara energikällor ske. I denna rapport har därför elbehovet, potentialen för elproduktion, möjliga framtida systemproblem samt lösningar undersökts. Efter en omfattande litteraturstudie har det framkommit att elbehove
Climate change is a people-made crisis which requires a shift in our mindsets. Early studies in the field of mindfulness within sustainability science show the potential of mindfulness to influence consciousness, beliefs, and values for sustainability. However, the field is still at its early stages and scattered over various topics and methods. The aim of this thesis is to assess how the concept
Recently, several academic studies have proposed a theoretical ‘producerist framework’ to address the lack of research and conceptual clarity on the economic dimension of national populism. Essentially, this framework refers to a narrative that pits the producers, understood as citizens that contribute to the nation’s economic wealth, against parasitic takers, who threaten the producers’ well-bein
The main purpose of this project has been to model one steam heated cylinder, which was taken as part of a drying section, moreover the design and structure of an existing process has been taken in consideration.
To develop this work ModelicaTM software has been used. Particular attention has been paid to reproduce the two time constants behavior of the dynamics in the pressure
Interlinked control loops with asynchronous sampling can give rise to a time varying time delay which varies irregularly. Here we examine ways to model these effects for an arbitary number of control loops, and to build up a probability density function, and current delay, before implementing a controller.
Modelling of an industrial control loop for concentration control using Omola, an object-oriented modelling language, is described. The major modelling effort has been made to make a complete nonlinear model of the pneumatic positioner-actuator of the control valve in the loop. A library of several friction models has also been developed. These models have been used to describe friction in the con
Sandvik Coromant is the market leader of producing tools for advanced metal cutting. The tools are produced in cemented carbide, however Sandvik Coromant does not produce tools for machining cemented carbide. The aim of the thesis was to perform cutting tests in cemented carbide with diamond tools to investigate if the binder content affected the machinability of the process. The wear tests were
High-throughput screening is one of the most extensively used methods for the identification of molecules of interest during early stages of drug development projects. It is however subject to many artifacts due to various mechanisms. Aggregation and redox cycling are examples of mechanisms of unspecific inhibition that make a large number of compounds appear as active in several high throughput s
Even though protonemal development of bryophytes has been well studied, it remains unknown whether interspecific competition among mosses species affects their early growth and development. This study evaluated the effects of interspecific competition on in vitro germination and gametophyte development between each pair-wise combination from six common moss species: Atrichum undulatum, Bryum argen
Diskussioner kring miljö och hållbarhet har blivit alltmer betydelsefulla aspekter inom modevärlden. Den ökande miljömedvetenheten hos konsumenten, kraven på bättre arbetsvillkor och ökad transparens har också bidragit till att marknadsföringen av produkterna fortsätter att bli allt viktigare. Den här studien har tittat på kampanjen Co-Exist Story mellan klädkedjan H&M och djurrättsorganisatio
Visuell kommunikation spelar en avgörande roll i hur budskap förmedlas på sociala medier där ett visuellt språk överskrider språkliga barriärer och möjliggör enklare bearbetning och tolkning av information än skriven text. Det är därför av stor vikt att undersöka hur en influencer i svensk kontext använder visuell kommunikation på sociala medier. Med en mixad metod syftar denna uppsats till att an
Studiens syfte är att få förståelse för hur vitt nikotin-snus påverkar unga tjejers sociala liv genom att förstå vilken statussymbol snuset har fått i ungdomskulturen. Detta var av intresse på grund av den stora ökade användning av vitt nikotin-snus bland unga tjejer, mellan åldrarna 16-29, i Sverige de senaste åren. För att förstå detta valde författarna att jämföra insamlad empiri, vilken samlad
The metabolism of pyruvate in the cell is abnormally regulated in several human diseases, such as type-II diabetes, cancer and neurodegenerative disorders, in which the human mitochondrial pyruvate carrier (HuMPC) sits at a pivotal point. It transports pyruvate across the inner mitochondrial membrane and consists of two proteins, MPC1 and MPC2, and is a potential drug target against these diseases
As environmental pressures mount, the corporate world is steering towards green information systems (IS) to respond to sustainability predicaments. This study uncovers financial stakeholders' attitudes towards the benefits and challenges of environmental and carbon management systems (ECMS) initiatives, as well as transformative green IS initiatives. Relying on the usefulness of signalling the
Introduction: The topic of this project was the expression and purification of Transient Receptor Potential Ankyrin 1 (TRPA1) from Anopheles gambiae, both the full length protein and a truncated version. Background: The structure of AgTRPA1 has not previously been determined, a step towards the determination is to express and purify the protein. Particular challenges working with AgTRPA1 are that
