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This Master’s thesis evaluates the performance of lightweight compression algorithm aimed for IoT sensor devices. These devices are most often battery driven and produce large amounts of sensor data which is sent wirelessly. Compressing the data could be a tool in decreasing the power usage of these devices. The algorithms were evaluated based on their compression ratio, memory consumption and CPU
This master thesis investigates how to perform irrational decimation, the process of reducing the sample rate of a signal, for high throughput systems. The thesis work consists both an algorithmic part and an implementation part. In the algorithmic part, an algorithm that could cope with the requirements is found, and investigated due to different aspects. A group of filters that are investigate
Den svenska turismnäringen växer. Under 2017 omsatte turismnäringen i Sverige 317 miljarder SEK, en ökning med 7,4 % från föregående år (Tillväxtverket, 2018). Fler event och ökad turism medför en ökad påverkan på miljö och klimat men samtidigt fler arbetstillfällen och gynnad samhällsutveckling. I samband med detta väljer flera arrangörer att på ett eller annat vis hållbarhetsmärka sitt evenemangThe Swedish tourism sector is expanding. The turnover of 2017 ended on 317 billion SEK, which is an increase with 7,4 % from the year before (Tillväxtverket, 2018). Increased tourism and more events lead to a bigger impact on the environment while at the same time enhancement in tourism development. Which in turn leads to positive effects on both local development and employment. This study aims t
Mikroplastens intåg i den limnologiska miljön - Allmän dammussla (Anodonta anatina) innehåller mikroplast Utan betydande åtgärder kan det år 2050 finnas mer plast än fisk i världens hav, beräknat på vikt. Mikroplast och dess miljöpåverkan är just nu ett mycket aktuellt forskningsämne, mikroplast medför miljöproblem för framförallt marina organismer. För att undersöka hur närvarande mikroplast är Alarming amount of plastic accumulate in the ocean. Recent research states that if the use of plastic will continue as predicted it will be more plastic than fish in the ocean by 2050. It has been established that microplastic has spread to many of the world's marine ecosystems. Some animals including mussels mistake microplastic for food and ingest the microplastic, a big problem which can le
Today, technology is everywhere in our everyday lives whether it is wanted or not. The world has become digitalized and this development continues for each year that passes. The Swedish government has now (2018) updated the curricula for both kindergarten and elementary school to include more digital aspects in the teaching. With this background, this thesis (project) set out to design a digital a
One of the most difficult problems that an engineer who works with modeling deals with, is the question about how to translate a physical phenomenon into a set of equations. It is usually difficult to capture all dynamics and phenomena, so one usually strives for a set of equations that describes the physical system approximately and adequately with the accuracy for the purpose. In our case, we mo
Lysande protein ska hjälpa spåra ändringar vid alzheimers sjukdom Demens är ett syndrom som påverkar en stor del av populationen vid högre ålder. Syndromet yttrar sig genom att påverka personers kognitiva förmågor, huvudsakligen minnet. Frekvensen kommer fortsätta att öka med den åldrande populationen. Den vanligaste och mest välkända varianten av demens är alzheimers sjukdom. Som alla vet är deApolipoprotein E4 (ApoE4) is the biggest genetic risk factor for Alzheimer’s disease. While it is known to transport cholesterol to neurons the localization of the protein has not yet fully been mapped. Levels of amyloid precursor protein (APP) and its cleavage product amyloid beta (Aβ), the main component of amyloid plaques, in transfected cells were determined using western blot. Green fluoresce
This thesis addresses a project conducted in collaboration with Volvo Car Corporation, to develop a new concept for luggage covers in car luggage compartments. The purpose was to find a new concept, with focus on user friendliness and environmental sustainability, which automatically opens up for easy loading of the luggage compartment. The fabric in today's solution is made of polyester and P
Arbetet är utfört åt skogsforskningsstationen Mógilsá som ligger strax norr om Reykjavik. Forskningen inom Mógilsá bedrivs inom delar av eller för hela Island med inriktning inom exempelvis dendrokronologi, proveniensförsök, och studier av insekter. Sedan 1900-talets början har inplantering av exotiska trädarter blivit allt vanligare och i en allt större skala. Syften med inplanteringen är bland aThis study was made in an attempt to give the forest research centre Mógilsá a produced tetratherm map and a better understanding of how topography and temperature influence the growth of two tree species. The digital tetratherm map model, covering the northern part of Iceland, was developed to investigate the correlation between tetratherm and the growth of Picea sitchensis and Larix (sukaczewii
The aim of this essay was to describe what some Macedonian men had to say about their own and the Swedish alcohol culture and which alcohol culture they identify with. I did five qualitative interviews with Macedonian men that had moved to Sweden. Some of the questions that were asked are whether or not age, country and culture is of importance when it comes to the alcohol culture you have? The m
In recent years there has been much attention paid to corporate scandals, and in the Swedish media the Skandia incidents have become a serial as, years after the incidents was revealed, sentences are passed on those involved in the scandal. The former president and vice president of the joint-stock company Skandia were both prosecuted for the economic crime gross breach of faith committed by an ag
The purpose of this study is to qualitatively investigate how mid-level managers from care of the elderly and compulsory school can handle the complex position in the middle of the organization. A position distinguished by unclear boundaries and demands from both superiors and subordinates. The study is based on qualitative interviews with four managers from care of the elderly and four principals
Purpose: The aim of this study is to unravel consumer motives for enrolling in multiple programs and explore the consumer experience of multiple memberships in the highly competitive loyalty program market. Methodology: We have conducted a qualitative research with a hermeneutic approach. A sample group of nine women in the ages 47-62 were selected based on a snowball sample. Through detailed acco
Background With obesity levels on the rise globally, it is necessary to create a healthier food environment and increase access to nourishing and palatable foods. Dietary fibre consumption has been proven to be one of the best ways to prevent cardiovascular diseases and type 2 diabetes. Glucanova AB developed an oat bran and barley-based product and investigated the daylong effect on glucose respo
This master thesis study presents the results of sediment transport analysis along Viskan, located in south Sweden. The main processes cover building a hydrodynamic model, studying parameters that define sediment transport, modelling sediment transport within the river, mapping out erosive stretches and comparing to observed eroded locations, and finally comparison of different transport functions
A lot of time and care have been put into exploring and explaining the power relations between nurses and nursing assistants, the emotional investment appropriate in care work, different views on leisure time for staff in this context (Warming, 2019; Habel, 2021; Jervis, 2002; Crocker, 2019). Less work has been done in exploring the complex relationships care workers have with their patients and h
The impact of the sourcing department has gotten more and more attention in the past couple of decades. This has resulted in numerous frameworks and scorecards to guide companies through different sourcing decisions. This interest in sourcing has grown side by side with the increased globalisation and outsourcing. Therefore, relevant measurable criteria have moved from a supplier-oriented level, t
The genes being studied here are plant Flavin-containing monooxygenase (FMO’s) which are enzymes that place molecular oxygen on heteroatoms such as nitrogen, and sulfur with the help of cofactors such as NAD(P)H and FAD. Plant FMOs are divided into three major clades: N-hydroxylating, S-hydroxylating and YUCCA. The YUCCA family is conserved in all plants, and performs oxidative decarboxylation of
The Public Health Agency of Sweden are reporting negative statistics regarding the mental health of the LGBTQ-community. The Swedish National Agency for Education has therefore tasked all Swedish teachers and schools to implement a more inclusive way of processing questions regarding the LGBTQ-community in their ways of educating. The aim of this study is therefore to scrutinize teachers' own
Background and Aim: Sweden is one of the European countries which receive refugees worldwide, including those from Myanmar. As Myanmar refugees begin to resettle in Swedish society, they might experience challenges that may affect their mental health and well-being. Although mental health problems of immigrants in Sweden have increased over the past years, few studies have addressed the mental wel
