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The performance of traditional continuous-time (CT) delta-sigma analog-to-digital converters (ADCs) is limited by their large sensitivity to feedback pulse-width variations caused by clock jitter in their feedback digital-to-analog converters (DACs). To mitigate that effect, we propose a modified switched-capacitor (SC) feedback DAC technique, with a variable switched series resistor (SR). The arc
The use of Reinforcement Learning (RL) to design controllers for safety critical systems is an important research area. On the one hand, RL can function in and adapt to complex and changing environments without requiring a model of the system. On the other hand, in such systems robustness is of high importance, as well as ways to guarantee and certify a level of robustness. This project investigat
Over the last century, Swedish forests have undergone rapid land-use change due to intensification of management practices for timber production and the introduction of monocultures, which have resulted in considerable habitat loss and negative impacts to biodiversity. Insects form a significant component of forest biodiversity, yet forest-dwelling pollinators remain understudied, and little is kn
During the last decades the spread of the invasive species round goby, Neogobius melanostomus, has largely increased in the Baltic Sea affecting the ecosystem, biodiversity and species interactions. Round goby originates from the Caspian Sea and has most likely been introduced multiplied times via ships ballast water to different areas of the Baltic Sea. The establishment has had both negative and
Supercritical fluid extraction method was optimized and applied to extract seed oil from baobab seed (Adansonia digitata L.). A full-factorial design was used to investigate the interaction influence of density and temperature in the range of 0.6-0.8 g/ml 40 to 77 °C, respectively, on the extracted amount of oil from crushed seeds. The results showed that density has a significant influence on the
With the transistor being the workhorse in modern electronics it has been vastly improved since its invention. However, the previous go-to improvement method of scaling it down has reached a dead end. Power dissipation has become a large concern and is in need of a solution. In the pursuit of further improving the transistor structure and its performance new approaches are being evaluated. A very
The RF power amplifier is one of the most critical blocks of transceivers, as it is expected to provide a suitable output power with high gain, efficiency and linearity. In this paper, a 60-GHz power amplifier based on an injection locked structure is demonstrated in a standard 65 CMOS technology. The PA core consists of a cross-coupled pair of NMOS transistors with an NMOS current source. This st
Bakgrund: Stressrelaterad ohälsa har ökat bland unga och de upplever sig ha svårighet i att hitta balans mellan olika aktiviteter. Inom vården är sjukskrivning och hög psykosocial belastning vanligt förekommande, vilket utgör en risk för unga vuxna som går ett gymnasialt vårdprogram. Syfte: Att kartlägga aktivitetsbalans respektive stress bland unga vuxna på ett gymnasialt vårdprogram och undersöBackground: Stress-related illness is increasing among young adults, who find it difficult to achieve a balance between everyday activities. Workplace environments in health and social care are often stressful, and sick leave is common. This poses a risk to young adults attending an upper secondary healthcare educational programme. Purpose: To identify the degree of occupational balance and stres
This thesis was conducted to quantitatively describe environmental and economic benefits from reuse of office furniture together with a status analysis of methods used to calculate that kind of data. Information was gathered from literature and interviews with industry players. The results from the different sources were initially presented separately and later compiled to demonstrate what they in
De Jure Belli ac Pacis Libris Tres, av Hugo Grotius, och den westfaliska freden, i 1600-talets Europa, har ofta betonats av forskare som födelseplatsen för den moderna folkrätten. Denna studie har ämnat granska validiteten i dessa påståenden genom en rättshistorisk undersökning av omständigheterna kring texterna och en komparativ utredning dem emellan. Arbetets huvudsakliga syfte har varit att utfDe Jure Belli ac Pacis Libris Tres, by Hugo Grotius, and the Peace of Westphalia, in 17th century Europe, has often been highlighted as the birthplace of modern public international law. This study aims to review the validity of such statements through research of the legal history concerning the topic and through a comparative examination of the two works. The main purpose of the study have been
The increase of brownification in surface waters has been a problem for rivers and lakes from the northern hemisphere. The main factors of this water brownification are the increase of dissolved organic matter and iron in water bodies. This study aims to assess the contribution of groundwater flow and surface flow from Bolmsö Island to the water balance of Lake Bolmen, Sweden. This assessment help
The 13C mobility and cross-β-sheet structure of lipid-protein co-assemblies formed by incubating ganglioside GM3-containing model membranes with the amyloid protein α-synuclein were investigated by solid-state NMR and wide-angle X-ray scattering (WAXS) at varying lipid-to-protein ratios and membrane compositions at body temperature. The POPCGM3 model membrane was characterized by PT ssNMR and X-ra
Syfte: Syftet med denna uppsats är att undersöka hur en hållbarhetsmärkning av kläder i en e-handelskontext påverkar ett företags varumärkeskapital. Metod: Studien utgick från en kvantitativ ansats där tre av Aakers (1991) fem dimensioner av kundbaserat varumärkeskapital operationaliserades. I en enkät fördelades respondenterna in i tre grupper som mötte olika stimuli och fick ta ställning till sPurpose: The purpose of this thesis is to investigate how a sustainability label on clothing in an e-commerce context affects a company's brand equity. Methodology: The study was based on a quantitative approach where three of Aaker’s (1991) five dimensions of customer-based brand equity were operationalized. Respondents of our online survey were divided into three groups, exposed to differen
Coastal erosion has increased worldwide during the last decades, mostly due to human activities. Vietnam is not spared, where many places within the country suffer from beach erosion. This report focuses on the region around Thu Bon river mouth in the central part of Vietnam. The beaches next to the river mouth are experiencing severe erosion, especially Cua Dai Beach. The beach is totally eroded
