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This Master's thesis has concerned the segmentation and classification of background textures in images. In order to segment the images we have used the SLIC algorithm to create superpixels. These are a sort of over segmentation of the image where pixels close to each other and similar in colour are considered to be the same texture. All superpixels were then classified using a convolutional n
Abstract—This article have been written in cooperation with The Swedish Defense Research Agency (FOI). The article proposes a method to calibrate hydrophone positions for improved underwater survailence in The Baltic Sea. The idea with the method is to use the sound of a powerboat and a novel beamforming algorithm for array element localisation (AEL). There are strategic military advatages to this
Companies seem to be increasingly interested tapping into bottom-of-the-pyramid (BoP) markets, but only a few multinational corporations have managed to achieve a successful breakthrough. This paper aims to identify several critical aspects of BoP business models that have to be redefined in order to enable mutual value creation in low-income countries. A qualitative approach is adopted in the for
Problembeskrivning: Lager och lagerhållningsprocesser ses ofta som några av de viktigaste delarna i ett företags värdekedja, så dessa delar kan stå för över 20 procent av företagets totala logistikkostnader. Storleken på dessa kostnader, och även många andra kostnader relaterade till lagerföring, är huvudsakligen en konsekvens av de beslut som togs när lagren designades. Lagerdesign bör därför sesProblem description: Warehouses and warehousing operations are often considered as some of the most crucial elements in a company's supply chain, and often stand for more than 20 percent of a company’s total logistics costs. The actual size of these costs are, together with most of the costs related to warehouse operations, mainly consequences of the decisions made when designing the warehouse
This project aims to determine the characteristics of a wireless communication channel in city-street-canyon scenarios. The channel of a typical city intersection is modeled with a ray tracer and measured with a channel sounder. Then, the results of both tools are compared in terms of the local scattering function. The channel sounder utilized for the project was initially developed by Rui Wang et
Examensarbetet utfördes som en del av projektet Ecoist hos Sirgomez Engineering AB, med målet att reducera komplexiteten och massan av den nuvarande uprighten i främre hjulupphängningen, genom att ta fram en ny bestående av en komponent, samtidigt som hänsyn även tas till aspekter som tillförlitlighet och tillverkningsbarhet. För att uppnå detta användes topologioptimering. Indata till optimeringeThe master thesis was carried out as a part of the project Ecoist at Sirgomez Engineering AB, with the goal of reducing the complexity and mass of the current front suspension upright by designing a new upright from one piece, whilst also considering other aspects such as reliability and manufacturability. In order to achieve this, topology optimization was used. The inputs for the optimization ne
In the Convention on the Rights of the Child, the European Convention, Swedish law and guidelines there are certain rights regarding juveniles suspected of a crime being interrogated by the police. The aim of this bachelor thesis is to develop a broader understanding about possible failures in upholding those rights. Further, what possible consequences it could mean for the suspected juveniles an
Green roofs are becoming increasingly more popular due to the fact of their many benefits. The aim of this report is to investigate the level of fire safety in extensive green roofs, which includes a variety of sedum, herbs and grass, in urban environments. Research is also done to clarify which parameters are affecting fire spread on extensive green roofs and to which extent. The objective was to
Syftet med studien är att skapa en nyanserad bild och utöka förståelsen för vilken betydelse en stark företagskultur har i en organisationsförändring utifrån anställdas perspektiv. Uppsatsen grundar sig i teorier kring företagskultur och förändringsprocesser inom organisationer samt hur dessa samverkar i tidigare forskning. Det empiriska materialet är baserat på tio intervjuer med medarbetare ochThe purpose of this study is to create a nuanced picture of what significance a strong corporate culture has in an organisational change through the perspective of an employee. The study is divided in two theoretical perspective where both previous research about organisational culture and organisational change are discussed and how the two are connected. The empirical data is based upon ten int
This thesis discusses the landscape changes of Helsingborg municipality in Scania, southern Sweden. The aim of this thesis is to compare the occurrence of wetlands in the early 1800’s with the contemporary occurrence. The findings will be presented from three angles: the total wetland area, presence of different wetland types, and spatial distribution of the wetlands. To assess this change over ti
Undersökning av två ytmarkörers uttryck i mantelcellslymfomceller öppnar möjligheter för målinriktad cancerbehandling. Proteinerna CD44 och CD69 tillverkas i högre utsträckning i en minoritet av cancercellerna i mantelcellslymfom. Dessa cancerceller är kända för att vara svårbehandlade och tros ligga bakom den höga andel återfall som är förknippad med sjukdomen. Genom att undersöka dessa proteineThe B-cell lymphoma (BCL) subtype, mantle cell lymphoma (MCL) is a lymphoid malignancy associated with high risk of relapses and an overall poor prognosis. The relapses are believed to be the result of a treatment resistant sub-population harbouring stem cell like properties. One way to isolate and identify such cells is through analysis of the side population (SP) by staining with Hoechst 33342.
Gender equality and empowerment of women and girls were presented at the Sustainable Development Goals (SDG5) by the United Nations. It has been realized that empowerment of women plays a crucial role in development. This study examines the empowerment process of rural migrant women in China. It first describes the registration house system called hukou and general gender roles in China. This rese
NDVI(Normalized Difference Vegetation Index) was introduced in 1974. Despite its limitations, it has been under use for monitoring bio-physical and cultural landscapes from satellite. The present study employed MODIS based NDVI to examine trends of greenness and its link with LULC (land use/land cover) change and rainfall in Addis Ababa and its surrounding (covering 1,217 sq km) over a period of 1
Idag når vi i Sverige inte upp till miljömålet ”Grundvatten av god kvalitet”, en av orsakerna är bristande grundvattenkunskaper i samhället. Kontrollen av föroreningar är otillräcklig och det har under den senaste tiden uppmärksammats att vi har brist på vatten i stora delar av landet. På Revingehed ca 2 mil öster om Lund finns en provpumpningsanläggning som används för utbildning av framtida grunSweden do not meet the environmental objective "Good quality groundwater", one of the reasons is the poor general understanding of groundwater. The control of pollutions is insufficient and it has recently been noted that the storage of water in large areas of the country is inadequate. At Revingehed about 2 kilometers east of Lund, there are several pump wells that is used for education
According to the United Nations, half of humanity now lives in cities. In recent years, many countries have seen a rise in the number of and intensity of heavy rainfall events due to the effects of climate change. The consequences of urban flooding in such a context can vary between just causing mild discomfort to tremendous devastation. Building cities that can resist flood is quickly becoming an
Samhällets minoritetsgrupper har historiskt sett varit utsatta för misskreditering och diskriminering av olika slag. I denna uppsats har speciellt fokus lagts på den minoritetsgrupp som utgörs av de tusentals afghanska ungdomar som sökt eller söker asyl i Sverige. Syftet med uppsatsen har varit att studera hur individer i denna grupp upplever och hanterar stigma i sin vardag. Det empiriska underla
I takt med att miljö och hållbarhet blir alltmer prioriterade frågor för samhället kommer marknaden för biobränslen och energi producerad från biobränslen öka. Genom ökad konkurrens bland energiproducenter skapas ett större krav på lagerhantering som är en grundläggande kompetens för företag. Lager och lagerhanteringen har direkt påverkan på resultatet och därmed hur konkurrenskraftigt företaget ä
This thesis considers the problem of improving the performance of observed time difference of arrival (OTDOA) based positioning for Narrowband Internet of Things (NB-IoT). A new iterative low-complexity algorithm based on expectation maximization successive interference cancellation (EM-SIC) is presented. The algorithm tackles the near-far problem by using an iterative SIC, where for each received
The migration debate is discussed globally in today’s society, and countries have chosen to deal with placement of migration in different ways. Australia has demonstrated a unique way of handling migrants through their two policies. One of them places and processes migrants on the islands of Manus and Nauru in the last decade instead of conducting this vetting process on their own soil. This offsh
