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Artificial neural networks (ANNs) are widely used nowadays, and the research into improving their performances is continually ongoing. One main goal of ANNs is to have a high generalization performance, which can be estimated through validation. Ensembles can be useful to raise the generalization performance, but the validation of ensembles is often computationally costly if the size of the traini
I arbetet med att göra industrin mer energieffektiv har packningsförsedda värmeväxlare en betydande roll då den effektivt överför värme mellan fluider. Detta exjobb ämnar at utreda och utveckla en ny stöttande fot till Alfa Lavals packningsförsedda värmeväxlare. Målet var att ta fram en design som kan klara av allvarliga externa laster genererade av till exempel ett anslutande rörsystem eller jordIn the process of making the industry more energy efficient, the gasketed plate heat exchanger has an important role as it effectively transfers heat between fluids. This master thesis aims to investigate and develop a new supportive foot for Alfa Laval’s gasketed plate heat exchangers. The goal was to present a design that can sustain severe external loads induced by for example the connecting pi
Studien syftar till att undersöka hur markanvisningar kan användas som ett verktyg för att stimulera förekomsten av cirkuläritet och delningsekonomi vid ny bebyggelse. Syftet med cirkulär ekonomi är att minimera utvinningen av nya resurser, genom att produkter och material behålls, återanvänds och återvinns i så stor utsträckning som möjligt. Inom cirkulär ekonomi förekommer även begreppet delningThe study aims to investigate how land allocations can be used as a tool to stimulate the presence of circular economy and sharing economy in new buildings. The purpose of circular economy is to minimize the extraction of new resources, by retaining, reusing and recycling products and materials as much as possible. In circular economy, the concept of sharing economy also occurs, which aims to crea
A fundamental part of modern medicine is the ability to study and analyze images, especially for diagnostic purposes. A relatively new imaging system is photoacoustics, where laser- and ultrasound technology are combined to create images in a non-invasive way. It is absorption of the laser that is responsible for the creation of the ultrasound signal. Thus, it is the optic properties of tissue tha
Bakgrund: Röntgensjuksköterskan arbetar i en högteknologisk miljö där många patienter upplever oro. Det kan i många fall bero på bristande kommunikation. En väl fungerande kommunikation kan leda till reducerad oro hos patienten vilket ger goda förutsättningar för att få en optimal undersökning. Därför är det viktigt att belysa betydelsen av kommunikation i mötet med patienten. Syfte: Syftet var at
Insects play a major role in the ecosystem and are an important factor for biodiversity. Using laser remote sensing to distinguish and monitor the millions of insects in-situ, holds large potential to speed up and improve the otherwise time consuming process of trapping and subsequent analysis. In this work, the spectral analyser for an elastic hyper spectral lidar in the SWIR, with 64 effective s
Deposition of ferroelectric hafnium zirconium oxide (HZO) on semiconductor samples with Atomic Layer Deposition (ALD) has proven to be a viable method of production. But while the physical processes of ALD deposition is relatively well know, there exists some gaps in knowledge about different parameters for the ALD and the resulting depositions. This work is about analysing mainly how the purge ti
Electric vehicle (EV) charging may be used in aggregation as virtual batteries to provide a frequency regulating service to the power grid. The service is sold on the Frequency Containment Reserve (FCR) markets, and is traded one and two days ahead. Forecasts of charging patterns are essential to reliably provide this ancillary service. The thesis aims to build a generalized model for forecasting
Cutting carbon emission from road transports worldwide is a key component in limiting global warming, and electrification is one of the most likely automotive technologies to achieve this goal. Therefore, Elonroad is developing an electric road system that will allow its users to charge while driving. This allows greater range and a reduction in battery sizes. This master thesis is therefore aimin
In this work we explore a strongly-interacting dark sector with a Z’ portal to the Standard Model. We focus on the dark shower phenomenology and their semi-visible jet signatures with a strong emphasis on first principles of the theory. We use Pythia and Delphes for event generations and detector simulations, and consider both pp and e+e− collision events at 13 TeV. The kinematic studies are based
The usage of wind turbines during the latest years has grown substantially and are becoming an increasingly important source of renewable energy, as many countries are trying to reduce their reliance on fossil fuels. In order to increase the effect of the wind turbines the length of the blades has been increased, which has also led to an increase of the cross-section dimensions. This has led to ma
This paper examines export diversification with main focus on the Economic Community of West African States (ECOWAS), a union promoting economic integration in the region of West Africa. The West African Economic and Monetary Union (WAEMU), another Regional Integration Agreement (RIA), is also of main importance for the study. The study was conducted in order to determine whether ECOWAS and WAEMU,
This thesis considers solitary standing wave solutions to the Davey-Stewart-son equation, which is a model for surface waves on a body of water in three dimensions. In a special case, the Davey-Stewartson equation is reduced to the well-known non-linear Schrödinger equation with cubic power which is known to have a countable familiy of radial standing waves. One of the aims of this thesis is to in
Bakgrund: Endotrakeal intubation är det effektivaste sättet att säkra fri luftväg hos patienten. Vid cervikal immobilisering försämras möjligheterna att utföra en intubation. Airtraq är ett hjälpmedel avsett att underlätta vid svåra intubationer. Syfte: Att granska och sammanfatta de evidens som föreligger angående om Airtraq videolaryngoskop ger en snabbare intubering jämfört med Macintoshlaryngo
Purpose – The purpose of this study is to uncover what motivational factors exists for companies to use co-creational methods. It also aims to recognize what beneficial factors can come from using these methods. The restriction of using social media depending on industry or size of company will be reflected upon. The main research question is “What motivates companies to use customer co-creation a
Syftet med den här studien är att studera tillväxten under perioden 1992 fram till våren 2016 för andra generationens granskog efter tidigare genomförd kalkning. Skogen och skogsproduktionen är och har länge varit en stor och viktig del i Sveriges utveckling och ekonomi. Att studera tillväxten av skog är därför av stort intresse för många aktörer inom svenska skogsindustrin. I slutet av 1960-talet
This thesis presents and evaluates different models aimed at tracking the play in handball matches. The tracking is designed to be used with automatic broadcasting of handball matches without any camera operator present. To solve this problem the Kanade-Lucas-Tomasi tracker is used to generate data of player movements on the handball court. From the tracker data, features are extracted and used as
This project investigates the needs of different stakeholders regarding volunteer work in Sweden as well as implementing a prototype for a volunteer app. The main purpose is to design, create and test a mobile application prototype primarily focused on the end users, the volunteers. This is done by accumulating a lot of data and information using a survey that reached out to 111 volunteers and non
The quality of a flour can vary greatly depending on the wheat variety and on the conditions while growing the wheat. Currently, the quality is mainly assessed by test baking the flour to observe the volume of the final product. The aim of this study was to investigate if three instruments (Alveolab, Mixolab and Rheo F4) analyzing rheological behaviours connected to dough preparation and baking pr
