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Emissions and fuel economy are evaluated for two types of biofuels, namely 2-phenyl ethanol and cyclohexaneethanol. Both are derived from lignin, a form of lignocellulosic biomass. The former and latter oxygenates have an aromatic and aliphatic (i.e. saturated) ring structure, respectively. Two parametric engine sweeps were performed. First, non-EGR operation by means of varying the load via injec

The effect of event background fluctuations on charged particle jet reconstruction in Pb-Pb collisions at root s(NN) = 2.76 TeV has been measured with the ALICE experiment. The main sources of non-statistical fluctuations are characterized based purely on experimental data with an unbiased method, as well as by using single high p(t) particles and simulated jets embedded into real Pb-Pb events and

This paper aims at describing and explaining the bi-and multilateral negotiations that are, and have been, taking place between Sweden's chief negotiator Allan Larsson and European countries, and within the EU institutions in Brussels, in order to seek support for the Swedish offer to host the European Spallation Source, ESS. It applies a case study method using political science theories ? go

Purpose: This paper aims to investigate the nature and dynamics of the interaction between university spin-offs (USOs) and academia. Design/methodology/approach: The theoretical framework is grounded in an interactive view based on the industrial marketing and purchasing literature on USOs and their development. The concepts of activity links, resource ties and actor bonds are used as a starting p

The first part of the thesis aims to investigate the applicability of JGrafchart and its associated Model of Computation(MoC) for describing sequential control in aircraft primary power distribution systems. The motivation behind this is the need for better modeling tools and in particular support for separation between nominal control and fault handling. Also, as system complexity increases, bett

The study aims to examine the impact of Expressive Suppression (ES), on Working Memory (WM) performance when exposed to mild pain reaction causing physiological activation. Performance measures are obtained to discriminate between three groups having their hands in warm water, cold water, and cold water and implementing ES. As a measure of WM performance, this study used a WM 2-back task intersper

Hobbing is a common manufacturing method when producing helical, involute gears. In order to increase tool life and surface finish, an accurate method to determine chip geometry is needed. Although this accurateness may involve numeric solutions, the geometric description must, as far as possible, be analytic and give a description of the continuously changing chip geometry. In this report, the c

Abstract in UndeterminedThis paper addresses the failure of activation programmes to achieve a rapid return to work when they are directed towards the long-term ill. The empirical basis for the paper is an analysis of the outcomes for 691 individuals in Sweden chosen for a re-activation policy programme to shorten their sick leave and increase their chances of returning to work. The outcome at the

Nocturnal hawkmoths are known for impressive visually guided behaviours in dim light, such as hovering while feeding from nectar-bearing flowers. This requires tight visual feedback to estimate and counter relative motion. Discrimination of low velocities, as required for stable hovering flight, is fundamentally limited by spatial resolution, yet in the evolution of eyes for nocturnal vision, main

The goal with this thesis is to analyze the expansion of Brazilian soybean cultiva-tion since 2000, through a World Systems Analysis perspective. The exploratory objective is concerned with how the soy expansion relates to the notion of periph-ery, as this has been conceptualized through the theoretical construct of periphery conditions by Terrence Hopkins and Immanuel Wallerstein (1982). The pap

The goal of this project was to design a tool that facilitates the work with and handling of horses in Scandinavia. After reading some literature and making visits to three different horse related businesses the choice were made to look at natural horsemanship. The goal of natural horsemanship is based on mutual respect, trust, communication and understanding. The idea is that you want to give th

The main topic of this thesis is the storage location assignment problem, which can also be seen as a traveling salesman problem. The objective is to find the shortest path between items to be picked at a medium-sized warehouse. Orders come in batches consisting of items that will be assembled in-house. Therefore, it is essential to pick up all the items contained in the batch before they are drop

This thesis compares traditional machine learning algorithms and large language models (LLMs) in developing personalized recommender systems to enhance passenger experiences on flights. Traditional methods like collaborative filtering have been widely used but face challenges such as data sparsity and cold-start problems. LLMs, with their advanced natural language processing capabilities, offer pr

As the migration crisis occured, the Swedish prime minister Stefan Löfven declared that we should not build the walls, but instead we should help people fleeing from war. However, shortly after this, the number of asylum seekers in Sweden reached its highest level and it became a challenge for the Swedish asylum system and other vital societal functions. In order to deal with this situation, the s

Numerisk strömningsmekanik är en kraftfull metod för att förstå flödet och förbränningen som sker i flygplansmotorer och kommer att vara ett avgörande verktyg i övergången från konventionella fossila bränslen till hållbara alternativ. Eftersom mer forskning har skett kring konventionella bränslen bör en simuleringsmetod för alternativa bränslen föregås av en metod som verklighetstroget kan simulerComputational fluid dynamics is a powerful method for understanding the flow and combustion that occurs inside aircraft engines and will be a key tool in the transition from conventional fossil-based fuel to sustainable alternatives. Because conventional fuels have been more widely researched, an attempt at simulating the combustion of alternative fuels should be preceded by the development of a m

The purpose of this report is to study dynamic models of processes used in waste water treatment. The report consists of a literature study and identification of two different unit processes.
The literature study consists of a thorough search of some relevant periodicals, and the result is presented as a collection of abstracts of articles, treating dynamic aspects of waste water treatment te

The purpose of this project was at first to explore textiles. It started off by a visit to The Swedish School of Textiles in Borås. I was introduced to the basics of textiles and was shown new textile materials at Smart Textiles. Coming home, I came to the conclusion of doing it my way, with the view of an Industrial Designer. Having prior experience with a similar project I knew that it was imp

This research has established a different approach towards a better design in packaging development for the Early Life Nutrition portfolio of Danone Nutricia Research. During this study, the value chain of plastic flexible packaging has been analysed by looking into the different technologies used at the sorting centres as well as technologies used to recycle multilayer films (e.g. delamination pr

Planet–planet collisions are a common outcome of instability in systems of transiting planets close to the star, as well as occurring during in-situ formation of such planets from embryos. Previous N-body studies of instability amongst transiting planets have assumed that collisions result in perfect merging. Here, we explore the effects of implementing a more realistic collision prescription on t