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Efficient bioconversion of the pentose xylose is vital for the development of competent lignocellulose biorefineries. Although many proper attempts of metabolic engineering for recombinant xylose utilization have been made in Saccharomyces cerevisiae, growth on xylose is still far from being optimal. Previous findings point out a more complex explanation to this feature involving interactions betw
Sandvik SRP has earlier studied a new way of calculating the cost in crushing and screening the results was a satisfactory, Sandvik SRP is now ready to go further in this study. The purpose of this study is further develop of the earlier adopted generic cost model earlier developed by Heyman and Lindström in order to calculate the cost per metric ton within the world of crushing and screening. By
This thesis investigates two ways of incorporating GPUs in Modelica. The first by automatically generating GPU code for Modelica functions, and the second by using GPU accelerated external code for a contact handling package. Automatic parallelization of functions is desired, as it can potentially accelerate large simulations significantly. Special patterns of nested for-loops in Modelica code are
This Master Thesis was made under and in collaboration with Pond Healthcare Innovation for Celgene. Celgene is a global pharmaceutical company developing treatments for cancer and other severe, immune, inflammatory conditions. In March 2015 Celgene launched a new oral treatment called Otezla (effective substance aprimelast) on the Nordic market. With this move they entered the arena of Psoriasis a
In this master thesis, combinations of noise-canceling LNA and harmonic-rejection mixers are investigated and compared to find an optimal inductorless receiver front-end for low-band (600-960MHz) FDD LTE-A network. The work was carried out in a modem development project at Ericsson Modems, Lund. Three receiver versions with different harmonic rejection techniques are compared in terms of noise fig
This thesis is evaluating the pedestrian modelling software Viswalk for the use as a building evacuation model, by verifying and validating the model. In the verification, a procedure from the National Institute of Standards and Technology (NIST) is used as a basis to assess Viswalk’s ability to represent pre-evacuation time, movement and navigation, exit usage, route availability and flow constra
In many application areas in industrial production, industrial robots are utilised for performing various tasks. Frequently a predefined geometric path exists, such that the robot should track this path with its tool centre point. The tracking is often to be performed with certain criteria specified, such as minimisation of time or energy. Accordingly, path tracking problems can often conveniently
The purpose of this Master's Thesis was to compare and coordinate active chassis systems in a search for new ways of controlling two driving situations; side wind exposure and split friction braking. These situations were to be mastered by three active systems; active steering, brakes and suspension. Examples of how to use the systems were presented for each driving situation. The results from
A wheel loader is a tractor-like universal working machine with a bucket in the front which can be used for digging, loading and transporting different type of material. A driver of such a vehicle needs a lot of training and experience before he can handle the vehicle in a safe and efficient way. In order to reduce these demands on the driver, the vehicle should be made more autonomous. As a first
Using data from the 2007 Bangladesh Demographic and Health Survey (BDHS), this research uses a logistic probability model to determine the associations between maternal characteristics, such as the exposure to physical domestic violence and low women’s status, and the risk of develop problems of malnutrition in children under 5 years. Using anthropometric indicators of malnutrition such as stuntin
Mänskliga attityder är fundamentala för att bevara jordens ekosystem. Denna studie undersökte sambandet mellan mänsklig empati och upplevelsen av samhörighet med naturen, mer specifikt, med specifika växter. Undersökningen baserades på enkäter och den statistiska analysen gjordes med rmANOVA. Deltagarna (N = 106, medelålder =32,7 SD =16,0) bedömde sin empati och upplevelse av samhörighet med naturHuman attitudes toward nature are fundamental for preserving earth’s ecosystems. This study investigated the malleability of human empathy and connectedness to specific plants. We randomly assigned participants (N = 106, Mean age = 32.7, SD = 16.0) to one of three different induction conditions, and measured trait general empathy and connectedness to nature, as well as state empathy and connectedn
Bosnia and Herzegovina has been one of the countries in the Western Balkans mostly affected by terrorism and the phenomenon of foreign terrorist fighters, which it has had a hard time combating. The country has been on the agenda of EU integration for many years, a process which has taken a very long time, but has in recent years accelerated rather drastically. There are many theories about terror
In the realm of wireless communications, the exploration of user equipment (UE) sensing capabilities has emerged as a complementary approach for optimizing the performance of wireless networks. This thesis delves into the potential enhancements achievable by integrating UE sensing capabilities into wireless networks, focusing on detecting Line Of Sight (LOS) and Non Line Of Sight (NLOS) scenarios.
Abstract The principle of fiscal neutrality is at the core of the EU VAT system. Neutrality in the EU VAT system comprises of two main elements, that is, equal treatment of taxable persons in the same situation and giving taxable persons the right to deduct input VAT for cost components. The right to deduction is an important element of the VAT system to achieve fiscal neutrality. Deductibility en
The average Swede uses 140 liters of water everyday. This combined with the usage in industry means that Swedish municipal water treatment plants produce approximately 900 billion liters of clean and safe drinking water every year. This does not include the fact that all water flowing to a treatment plant needs to be treated before being sent back out into the environment. These facts hint at what
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
The ambition to move road transport from fossil fuels to electric energy is a large undertaking. One of the biggest challenges with making the trucks fully electric is to charge them. They are usually operated daytime, and the operations gives very little time for charging resulting in the power needed for daytime charging being in the high 100s of kW. A desired system implemented at the terminal
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
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 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
