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Machine-learning methods have in recent years seen a great deal of use in condensed matter physics. In this thesis we apply such methods, specifically machine-learning with artificial neural networks, to the equilibrium and non-equilibrium description of the Hubbard and Hubbard-Holstein models. In the framework of ground-state density functional theory we reproduce results from the literature rega
Mesosideriter är sällsynta sten-järnmeteoriter med ett gåtfullt ursprung. Deras ovanliga blandning av skorp- och kärnmaterial har föranlett många bildningsteorier under det senaste århundradet. Några frågor har avsett ursprunget till metallen, huruvida den kom från en annan himlakropp, eller från moderkroppens egen kärna, samt varför det finns så pass lite mantelmaterial. Nedslag har haft en centrMesosiderites are rare stony-iron meteorites with enigmatic origins. Their unusual mix of crustal and core materials have inspired many formation theories over the last century. Some of the outstanding questions have regarded the origin of the metal, whether it came from another celestial body or from within the parent body, and the absence of mantle material. The role of impacts has been central
Stroke affects a vast amount of people every year. As a result, many survivors have at least partially lost some of their abilities which are necessary to complete everyday activities. Although rehabilitation can be used to improve those abilities, many survivors claim that conventional methods are demotivating and discouraging. The aim of this project is to develop and test interactive objects, w
In recent years, with corporate scandals and the global financial crisis there is continuous attention in the area of corporate governance which is the new concept in corporate world these days. It is seen as a moral duty and includes supporting the conformity to law and showing ethical guide. Corporate Governance is seen as a significant tool as firms’ financial performance when investors take an
In process industry many control loops are far from optimally tuned. In this master's thesis a tool for rapid process identification and control design has been developed. The tool, which is implemented in Matlab 5.3, identifies a process model out of the step response of the real process. A PI or PID controller can then be designed and evaluated. The tool contains three different automatic de
One problem when new controllers or control systems are built is the test of the controllers or the control systems. One way to test the controller is to build a real process to test the controller against. Another way to test the controller is to build the process-model in some kind of computer simulation tool. The advantages of using a simulation tool in a computer are quite many. For example
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
Purpose – The existing literature of open innovation (OI) has focused mainly on large companies and few on SMEs, leaving start-ups with scarce analysis of the use of OI. This paper aims to close that gap and contribute to a better understanding of what drives start-ups to open for innovation, how they use it and comprehend what challenges and benefits OI brings to start-ups. Design/methodology/ap
While industrial robots have traditionally been designed for tasks such as pick-and-place that require a high repeatability, an increasing demand for off-line control and high-precision applications have in recent decades put higher demands on the accuracy of robots. One application in that vain is the detection of X-rays that have been scattered from a sample during X-ray diffraction, which produ
Contactless palmprint recognition is a biometric technology which due to its ease of acquisition, non invasive nature and potentially cheap cost can come to stand competitive to more widely used biometric traits such as finger- or facial recognition. This work uses two different feature extraction methods for palmprint images, the Scale invariant feature transform (SIFT) with an iterative random s
An attempt was made at developing atomic layer etching from a cyclic etching process in an ICP-RIE tool. During the process OES was used for contamination monitoring and estimation of the relative amount of Cl2 left in the chamber during the etch step of cyclic etching processes. The process parameters were then optimized resulting in a quasi-ALE process suitable for pattern transfer as shown by t
The European Union (EU) taxonomy regulation marked a milestone in the sustainable finance agenda. The taxonomy aims to accelerate the mobilisation of public and private finance to support the transition to a net-zero economy. The EU’s taxonomy regulation established a classification system of environmentally sustainable economic activities to provide financiers clarity on what to consider a sustai
