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I detta arbete har det visats att artificiella neuronnät är lämpliga för att lösa svåra inversproblem inom kvantfysik. Relativt enkla program har använts för att räkna ut kvantmekaniska potentialer från antingen deras energispektrum, eller hur partiklar fördelar sig i dem. Vilket visar på att denna teknik skulle kunna vara lämplig för andra svårare problem i området. Det skulle också kunna användaInverse problems are important in quantum physics as their solutions are essential in order to describe a number of systems using measurable information, e.g. excitation energies or material properties. The problem with inverse problems is that they are usually very hard to solve. One method that could be useful in solving these problems is artificial neural networks. Artificial neural networks ha

Controlled water activity in an enzymatic reaction can influence enzyme activity and productivity. A small layer of water around an enzyme gives it a required flexibility to catalyze reactions at a higher rate in contrast with the one that is dry (Adlercreutz, Dicko, Larsson, & Månsson, 2017). The hypothesis of this research project is that the product yield and productivity of acidolysis and

Medias framställningar om hemlösa och hemlöshet påverkar övriga samhällsmedborgares föreställningar om hemlösa och hemlöshet och i sin tur hur hemlösa bemöts och behandlas. Normerade samhällsgrupper dikterar genom media hemlösas livsvillkor och sociala roller. En konsekvens av detta är att hemlösa stigmatiseras. Denna uppsats utforskar genom kvalitativa metoder medias framställningar av hemlösa oc

Self-driving vehicles is a highly anticipated technology for increasing the safety and efficiency of automotive transportation systems by removing the risk of human errors. Volvo Car Corporation is determined to produce vehicles of full autonomy and highest safety within the near future. To achieve this goal, Volvo Cars is in parallel with the development of autonomous vehicles setting up a sophis

Knowledge about the gas-phase close to an active catalyst is essential in order to understand the properties of the catalytic reaction process. By the use of planar laser-induced fluorescence (PLIF), the gas-phase can be visualized with high spatial and temporal resolution without affecting the catalyst. In this work, catalytic CO oxidation over a Pd(100) catalyst is investigated using laser-induc

Syfte: Denna studie syftar till att framföra en uppdaterad analys av hur bolag presterar efter att en del av deras verksamheter avknoppats, samt att pröva om utfallets spridning beror på någon av fyra utvalda variabler. Metod: Studien är kvantitativ och använder CAR i syfte att kartlägga skillnaden i avkastning mellan bolagen och S&P 500. Ett t-test samt en multipel regression har utförts i s

Purpose - The purpose of this research is to create a better understanding of what the current and future customer requirements are on logistics service offerings in the Danish construction industry and how the studied case company can better match these. Methodology - The research was conducted as a case study. A supplier (referred to as the case company) of tools, consumables and installation m

Efter kontakt med exploateringsavdelningen på WSP i Stockholm fick vi förslaget att,i samarbete med dem, titta närmare på hur kostnader för utbyggnad av allmän platsfördelas när fler än en exploatör verkar inom samma detaljplan. En fråga som WSP, iform av rådgivande konsulter, anser är intressant att undersöka. 6 kap. 40 § plan- och bygglagen (2010:900) ligger till grund för kommunens rätt att taThe aim of this paper is to represent various distribution principles that occur when a municipality divide costs for expansion of public space between developers who act in the same detailed development plan. We will look at different principles to divide costs, compare projects, investigate geographical differences, compare the cost that is debited and discuss transparency in the land developme

In this essay, practices of “nation branding” will be explored through the representations of migration, gender (and nation) of the exhibition Portraits of Migration, produced by the Swedish Institute and promoted through Swedish embassies and consulates worldwide. Theoretically, the essay is inspired by the tradition of British cultural studies and of feminist postcolonial exploration of nationho

Derivative models often come in the form of stochastic differential equations. From these equations a partial differential equation (PDE) can be derived. By discretizing the PDE the numerical solution is obtained on a form where the value of the derivative can be seen as a probabilistic weighting of future values. These probabilities can be used to simulate trajectories of the under- lying assets.

This project aimed to develop a vegan high-protein probiotic drink with two different tastes. The protein used should have similar quality as whey, amino acid score (AAS) 1.0. One aim was also to detect necessary processing steps. The protein sources studied for this application were oat, pea, pea+rice, hydrolyzed pea, soy, and potato. The protein sources were evaluated based on descriptive sensor

The process of decoupling is often considered to fulfil the prediction by the Environmental Kuznets Curve hypothesis that negative environmental externalities diminish with increasing income. Recent research has found many instances of delinking between economic growth and environmental harm on the national level across the globe. This study examines the development of the relationship between eco

III-V semiconductors are a profound part of the optoelectronics industry and new developments in alloy compositions and architectures are constantly emerging. Lowdimensional semiconductors, such as nanowires (NWs) have shown to have improved characteristics in certain areas such as enhanced light absorption and can furthermore be integrated on Silicon (Si) plattforms and are thus predicted to be a

This paper studies the effect of non-financial performance on the stock performance of companies. By using ESG ratings from the Thomson Reuters Eikon DataStream we were able to sort the companies into portfolios of high and low ESG performance. The study finds that low scoring ESG companies significantly outperformed their high scoring counterpart for the period 2010-2015 but that the difference c

Vi har skapat en modell som känner igen vilken underliggande känsla som finns i en konversation på Twitter. För att utvärdera hur bra vår modell är har vi jämfört med BERT, en större modell skapad av Google. Det vetenskapliga fält som handlar om hur datorer behandlar text heter natural language process- ing (NLP). Ett vanligt problem inom NLP är hur datorer ska förstå olika mänskliga känslor. I våWe have constructed a novel neural network architecture called CWE-LSTM (concatenated word-emoji bidirectional long short-term memory) for classify- ing emotions in Twitter conversations. The architecture is based on a combina- tion of word and emoji embeddings with domain specificity in Twitter data. Its performance is compared to a current state of the art natural language process- ing model fro

Den svenska turismnäringen växer. Under 2017 omsatte turismnäringen i Sverige 317 miljarder SEK, en ökning med 7,4 % från föregående år (Tillväxtverket, 2018). Fler event och ökad turism medför en ökad påverkan på miljö och klimat men samtidigt fler arbetstillfällen och gynnad samhällsutveckling. I samband med detta väljer flera arrangörer att på ett eller annat vis hållbarhetsmärka sitt evenemangThe Swedish tourism sector is expanding. The turnover of 2017 ended on 317 billion SEK, which is an increase with 7,4 % from the year before (Tillväxtverket, 2018). Increased tourism and more events lead to a bigger impact on the environment while at the same time enhancement in tourism development. Which in turn leads to positive effects on both local development and employment. This study aims t

Persisting challenges such as corruption and a lack of coordination among humanitarian organisations continuously lead to almost a third of all development assistance not reaching those in need. As various attempts of solving this dilemma have not been successful, an innovative approach is required. Organisations such as the World Food Programme have started to trial the use of blockchain technolo

This study analyses Chinese people's engagement in #MeTooinChina against sexual assault and patriarchal norms in Chinese society by asking three main research questions: 1) Why and how do Chinese people engage with #MeTooinChina? 2) What challenges are they faced with in their engagement and how do these challenges influence their continuous engagement with #MeTooinChina? 3) How do they reflec

The purpose of this work was to contribute to the creation of a prototype of a new type of robot called Agile Parallel Kinematic Manipulator or AgilePKM for short. Designing, building and controlling a new type of robot is a task which goes beyond the scope of any master thesis project, but there are subtasks which are more suitable to handle within the available time frame. A principle design wil

Producers in the cardboard and containerboard packaging industry want to, and are sometimes forced to, increase the amount of recycled fibers in packaging, but there is no way to confirm the actual composition of fibers by examining the material optically or chemically. Blockchain technology is often seen as a promising technology for data storage and it is argued that it can help increase transpa