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This master thesis is about the mathematical modeling of an inventory control system. The system is a single-echelon two-location system with one type of item. The locations replenish from a supplier that is assumed to have an ample stock. The demand is modeled as customers arriving according to a Poisson process with a known intensity and each customer only demands one item. In addition to replen
Thesis Purpose: The purpose of this thesis is to explore the effect of informal communication strategies on brand trust from a consumer perspective. Additionally, it aims to further conceptualize brand communication strategies on social media. Methodology: This inductive study applied a qualitative research strategy to obtain an in-depth understanding of consumers’ feeling of brand trust on soci
The purpose of this thesis is to construct a passive bistatic radar system using two USRP N200 software defined radios and two ordinary TV-antennas. Several auxiliary components were used in order to align and calibrate the devices including an octoclock CDA-2990, switch and signal generator. Several tests were made to verify that the sampling started simultaneously and that no significant phase s
The production cross sections of the inclusive Drell-Yan processes W-+/- -> l nu and Z/gamma* -> ll (l = e, mu) are measured in proton-proton collisions at root s = 7 TeV with the ATLAS detector. The cross sections are reported integrated over a fiducial kinematic range, extrapolated to the full range, and also evaluated differentially as a function of the W decay lepton pseudorapidity and the Z b
A novel traffic flow model based on stochastic microscopic dynamics is introduced and analyzed. Vehicles advance based on the energy profile of their surrounding traffic implementing the "look-ahead" rule and following an underlying asymmetric exclusion process with Arrhenius spin-exchange dynamics. Monte Carlo simulations produce numerical solutions of the microscopic traffic model. Fluctuations
Motivated by the need for transformative change and more holistic conceptions of wellbeing, this thesis aims to explore the transformative potential of the Buen Vivir. As a synthesis of indigenous and modern principles, it was integrated in the Ecuadorian constitution. In order to evaluate the socio-political project of the Buen Vivir in the realm of a Real Utopia, I will investigate the transform
Skånemejerier is a dairy cooperative in the region of Skåne in southern Sweden. It collects milk from roughly 500 farmers around the region on a daily basis. Skånemejerier has developed an IT system that allows end consumers to ‘trace’ their milk to a number of farms that each have contributed to the milk in a specific milk carton. There is a code on the top of Skånemejerier milk cartons which is
The study evolves around the emergence of a gender awareness in the Kenyan political consciousness, as a consequence of the adoption of the alternative development discourse, promoting values like equal participation and empowerment. My task has been to determine the outcome of local development initiatives in terms of women's empowerment and then relate the findings to theories on discursive
This project is set at the crossing of two burning topics of our time: the often ignored problematics of displaced people around the world; and the recently much more debated question of global warming. That these seemingly diverse thematics are deeply connected with each other becomes clear just by reading the IPCC* report from 2007 on global warming. As this report suggests, the real danger lies
The balance between exploration and exploitation is one of the key problems of action selection in Q-learning. Pure exploitation causes the agent to reach the locally optimal policies quickly, whereas excessive exploration degrades the performance of the Q-learning algorithm even if it may accelerate the learning process and allow avoiding the locally optimal policies. In this paper, finding the o
Since the working environment act was passed in 1991 employers in Sweden are to plan and control the working environment conditions in workplaces. They are responsible for organized rehabilitation at the workplace including the development of rehabilitation plans and a plan for interventions in order for a sick-listed client to be able to return to work.The aim of this study was to describe employ
Summary. The reasons that inhibitory factor VIII antibodies develop in only a fraction of patients with haemophilia A remain unclear, but studies of genetically related subjects have indicated that the immunological outcome of replacement therapy is to a large extent determined by patient-related risk factors. Non-genetic factors will also influence the inhibitor risk, since events challenging the
The minimum edge dominating set (MEDS) is one of the fundamental covering problems in graph theory, which finds many practical applications in diverse domains. In this paper, we propose a meta-heuristic approach based on genetic algorithm and local search to solve the MEDS problem. Therefore, the proposed method is considered as a memetic search algorithm which is called Memetic Algorithm for mini
All languages borrow words from other languages. Some languages are more prone to borrowing, while others borrow less, and different domains of the vocabulary are unequally susceptible to borrowing. Languages typically borrow words when a new concept is introduced, but languages may also borrow a new word for an already existing concept. Linguists describe two causalities for borrowing: need, i.e.
The sFLASH project at DESY is an experiment to study direct seeding using a source based on the high-harmonic generation (HHG) process. In contrast to SASE, a seeded FEL exhibits greatly improved longitudinal coherence and higher shot-to-shot stability (both spectral and energetic). In addition, the output of the seeded FEL is intrinsically synchronized to the HHG drive laser, thus enabling pump-p
