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The Internet of Things is coming. With it comes security challenges not present on common, more capable, devices such as desktop computers or servers. We argue that traditional channel security needs to be complemented with object security to cope with the constrained nature of small devices and Low Power Lossy Networks. The main reason for a partial transition to object security being heavy use o
This thesis mainly focuses on the protection strategies of microgrids for the Swedish power system in the medium voltage distribution system and specifically on the three-phase fault and earth faults protection strategies. For the analysis of both faults, different grid-connected, and islanding operations are simulated using DIgSILENT Power Factory. The simulation shows that using a distance prote
A derivation for a polarized CCFM evolution equation which is suitable to describe the scaling behavior of the unintegrated polarized gluon density is given. We discuss the properties of this polarized CCFM equation and compare it to the standard CCFM equation in the unpolarized case.
Indications of what the tour-operating sector considers to be 'good practice' can be drawn from voluntary initiatives such as existing eco-labels and codes of conduct. However, practical implementation of such guidance varies greatly from one tour operator to another, depending on different types of factors, such as size, financial capacity, corporate structure, operational location, organizationa
Goodpasture's syndrome is an autoimmune disease characterized by pulmonary hemorrhage, glomerulonephritis, and antiglomerular basement membrane (GBM) antibodies. We have studied a rat model with chimeric proteins (CPs) consisting of portions of the nephritogenic non-collagenous domain of alpha3 type IV collagen (alpha3(IV)NC1) and non-nephritogenic alpha1(IV)NC1. CPs with aminoterminal alpha3 that
Interest in biofuel use is growing in aviation, due to its potential for lower GHG lifecycle emissions and as a possible price competitive alternative to fossil fuels in the long-term (ATAG, 2012). While the use of biofuels in aviation is a new phenomenon, compared to the automotive industry, several actors from the industry and governments have been involved in various initiatives to research, te
Hydropower in Brazil stands for 64.5% of all energy sources in the country. The largest number of hydropower plants are located in the Paraná basin, which together have an installed capacity of approximately 40 GW including the world’s largest producing hydropower plant, Itaipu. The wet season during Brazilian summer (January-March) is the most important for hydropower. Occasionally, extreme, su
This paper explores the intersection of new urban spaces and new modalities of ‘homelessness’ in Japanese cities. We argue that the recent social phenomenon of “net café refugees” (netto kafe nanmin – people who substitute ‘manga cafes’ for their domestic residence) is conditioned by new forms of leisure, information technology, social manners, and the longterm contraction of the Japanese domestic
To guarantee that the products in the IKEA catalogue are available when requested, IKEA needs to plan and secure capacity. IKEA has developed a process called ONE Supplier Capacity Process to solve supplier capacity issues in a more proactive way. The thesis is focused on suppliers’ in the category Frames and Mirrors with frames in Greater China. Purpose The purposes of the thesis are fourfold: •
The main purpose of this thesis is to describe different numerical methods for solving the time-dependent Schr¨odinger equation. We introduce and describe two different basis representations (spectral and pseudospectral). These basis representations are then used in the different methods we take up for discussion. We consider methods in which the Hamiltonian is constructed in a spectral basis and
Background Companies producing premium products with high quality and long product life can experience challenges when trying to penetrate price-sensitive customer segments on emerging markets due to a high product price. One way to achieve growth in these segments is to introduce new innovative business models. From the theory of circular economy, a concept combining sustainable and economi
The purpose of this thesis is to find out whether or not the Estonian stock market is developed enough for introduction of a market for standardized options on index and stocks. This will be conducted through comparing the stock market development in Estonia today with the corresponding situation in Denmark, Hungary and Norway at the time of their introduction of trade in standardized options. Our
This paper addresses the topic of site characterization for the design of Shallow Geothermal Energy (SGE) systems, namely of thermoactive geostructures, which are geotechnical structures, such as piles, retaining walls and tunnel linings, also used as heat exchangers as part of closed-loop SGE systems. Such solutions, being increasingly adopted for buildings’ and infrastructures’ heating and/or co
The human amygdala is involved in processing of memory, decision-making, and emotional responses. Previous studies suggested that the amygdala may represent a neurogenic niche in mammals. By combining two distinct methodological approaches, lipofuscin quantification and 14C-based retrospective birth dating of neurons, along with mathematical modelling, we here explored whether postnatal neurogenes
Background: Norm values for patient reported outcomes, that is knowledge about how the general population of women rate their breast-related satisfaction and quality of life, are necessary to interpret the meaning of scores. The aims of this study were to create Swedish normative values for the BREAST-Q reduction/mastopexy module and to describe what healthy women are most satisfied/dissatisfied w
3D food printing is a fascinating novel technology with many promising applications, from futuristic-looking food topersonalized nutrition, and space food for astronauts. However, much of its potential is only realized in the laboratoryor speculated in the literature. This research is an attempt to explore the barriers to the diffusion of this newtechnology to the wider market. It argues that the
