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Problem Statement After the hurricane Gudrun in January 2005 EON Elnät Sverige AB started the project KRAFTTAG, were 17,000 km of the airborne power grid shall be replaced with cables underground. The transformers in the airborne power grid shall be dismounted, renovated if necessary and then conveyed to stations, of type kiosk. Additional new transformers, more than planned, have been bought. T
Purpose: With this study, an attempt was made to present an in-depth analysis of and study the interaction between PR agencies and their client’s CSR strategies in order to illuminate the contributions of public relations to these, and also to review current CSR activities applied in Serbia. Furthermore, the purpose was to foster the role of PR as an agent for change regarding CSR strategies. R
PFOS (Perfluoroktansulfonat)-föroreningar har hittats på många ställen i Sverige och i resten av världen, därför finns det ett stort intresse och behov av att kunna kartlägga föroreningarna med fler metoder än vad som finns till-gängligt i dagsläget. Det här examensarbetet har som syfte att undersöka resistivitets- och IP (induced polarization)-mätningars lämplighet att kartlägga PFOS vid en brand
A globally growing population, an increased energy consumption and growing environmental awareness have made the interest for renewable energy sources, such as wind power, higher. As a result of the increased demand the need for new and improved technologies have increased. The energy production of a wind turbine is highly affected by the rotor blade length, which is limited by the massive dead lo
This thesis employed several portable sensors on board an unmanned aerial vehicle (UAV) and manned aircraft in order to test new methods of measuring vertical profiles of aerosol particles and contribute to knowledge of aerosol distributions in the atmosphere. More data in this area is required to improve atmospheric modelling and future climate scenarios. The handheld nanoparticle detector Partec
To be able to face the challenges brought on by climate change there is an urgent need to reduce the heavy dependence on fossil fuels. Bio-oil is one such renewable and carbon-neutral replacement that has shown promising potential. A key step in making bio-oil commercially feasible is improvements of the upgrading processes of the bio-oil. One such upgrading process is catalytic hydrodeoxygenation
Det har uttryckts oro över ungdomarnas ständiga uppkoppling via sociodigitala teknologier och hur detta kan relateras till en upplevd försämring av unga människors välbefinnande. Få studier har fokuserat på totala användningen av både sociala medier och dataspel; eller har utforskat potentiella positiva samband mellan sociodigitalt deltagande (SDP) och ungdomarnas välbefinnande. Syfte: Den aktuellConcern has been voiced about adolescents’ instant connectivity via socio-digital technologies and how that relates to a perceived worsening of young people’s well-being. Few studies have focused on cumulative use of both social media and gaming; and/or exploring potential positive associations of socio-digital participation (SDP) and adolescent well-being. Objectives: The current study aimed to
The main focus of this thesis has been to examine and compare how the size and number of internal power transformers affects the technical performance (robustness, power quality and efficiency) of a utility-scale PV plant. The technical performance was examined in a simulation environment (MATLAB Simulink), where a PV plant with a fixed number of PV arrays and converters, corresponding to a rated
The purpose of this report is to investigate and compare two potato chip production lines to determine the optimal layout of the factories in order to maximize the chips' adhesion ability to seasoning. The hypothesis of this study is that the adhesive ability of chips is highly dependent on how warm they are when they are seasoned, with warmer chips having a stronger adhesive ability. This hy
Hybrid solutions that combine multiple renewable energy sources, such as solar power and hydro power, are gaining popularity as a means of meeting the growing energy demands while minimising environmental impacts, but also as an opportunity of connecting solar power plants to the grid in areas where this might not be possible unless large investments are made. This master thesis aims to evaluate t
Non-melanoma skin cancer (NMSC), comprising of squamous cell carcinoma (SCC) and basal cell carcinoma (BCC), is the most prevalent cancer amongst Caucasians. The main risk factor for the development of NMSC is UV-irradiation but human papillo-mavirus (HPV) might be a co-factor. We extended the heterogeneity of the genus Betapapillomavirus by characterizing six putative types, HPV93 (species 1), 96
Rationale and Objectives: To compare the ability of normalized versus non-normalized metabolite ratios to differentiate recurrent brain tumor from radiation injury using magnetic resonance spectroscopy (MRS) in previously treated patients. Materials and Methods: Twenty-five patients with previous diagnosis of primary intracranial neoplasm confirmed with biopsy/resection, previously treated with ra
Background: Infection is a serious adverse effect of prostate biopsy (P-Bx), and recent reports suggest an increasing incidence. Objective: The aim of this multinational multicentre study was to evaluate prospectively the incidence of infective complications after P-Bx and identify risk factors. Design, setting, and participants: The study was performed as an adjunct to the Global Prevalence Study
The biodegradability of dissolved organic carbon (DOC) in different fractions from the forest floor was studied. Soil leachate (SI, the soil solution in macropores which is freely drained from forest floor after rainfall), the soil matrix solution (SMS, the soil solution in meso-/micropores of the soil matrix), and soil water extracts (SWE) from two different beech forest floors were compared. Zer
Popular Abstract in Swedish Skador på skelettet kan uppstå efter bl.a. olyckor, tumörkirurgi eller strålning. Ofta är sådana skador mycket handikappande då de påverkar kroppens funktion, stabilitet och utseende. Om benvävnad saknas eller måste bytas ut använder man sig idag av mikrokirurgiska metoder, där man flyttar kroppseget ben från ett ställe till ett annat. Tyvärr innebär detta att man skapa
Background: Total hip joint replacement (THR) is a high volume, effective intervention for hip osteoarthritis (OA). However, indications and determinants of outcome remain unclear. The 'EUROHIP consortium' has undertaken a cohort study to investigate these questions. This paper describes the variations in disease severity in this cohort and the relationships between clinical and radiographic sever
The palynofloral changes around the Cretaceous-Paleogene (K-Pg) mass extinction event reveal the fine details of vegetation response to a global environmental crisis-in this case an asteroid impact in Mexico 65.5 million years ago. Due to the extinction of several plant taxa at the K-Pg boundary, palynostratigraphy is a prime tool for localizing the Cretaceous-Paleogene boundary in non-marine succ
This report provides an analysis and evaluation of the current spatial, environmental and financial resilience of Rågsved Centre in Stockholm. Furthermore, local future risks on resilience are also discussed and the total analysis is synthesised in a new resilient spatial interpretation of the centre. Methods of analysis include a narrative format that comprise of twelve semi-structured interviews
PFAS are a group of persistent and harmful chemicals that are widely used in both industrial applications and consumer products. PFAS are commonly detected in the environment and pose health concerns. Adsorption by GAC is considered an effective treatment method for removing PFAS from water. After a certain period of operation, GAC requires high-temperature incineration as disposal method. Another
