Filetype
The chirality-flow formalism has been proven to simplify the calculation of helicity amplitudes, both analytically and in a first numerical implementation developed as an extension of MadGraph5_aMC@NLO. Expanding on this work, two new implementations have been developed. The first provides an alternative algorithm for the evaluation of diagrams, where helicity amplitudes are obtained by combining
The EU procured for roughly 202000 MEUR (14% of the EU GDP) during 2021 in the public sector. The majority of these contracts are traditional, linear business model purchases. The EU has been developing several strategies, guidelines, and policies for sustainable purchasing, with Circular Public Procurement for a Circular Economy (CE) being one of them, but the implementation rate is low. Electron
The growing importance of organisations becoming more sustainable has reached a crucial point. To aid the journey of becoming more sustainable information systems and specifically business intelligence is an appropriate solution to help manage and measure sustainable development. However previous research suggests the use of business intelligence in the context of sustainability is not as prevalen
Palmers Green is a faltering neighbourhood; a place that continually settles on temporary fixes, such as shop changes that suit only select groups, coupled with an absence of communal facilities or activities. The result is a lack of overarching sense of community - perhaps a natural manifestation of the co-presence of multiple diverse cultures. But does it have to be this way? A more engaged comm
Finding vulnerabilities in open source software is an important part of software security. Software security is in turn a vital part in risk management and making risk assessments. The purpose of this thesis is to help organisations make decisions about vulnerabilities they have in their software programs by helping them make their own risk assessment. Our research uses the Common Vulnerability Sc
The increased use of plastics has become an environmental problem where plastics, due to the slow degradation, accumulate in the oceans and landfills. Although plastics are a very cheap and useful material with desirable properties and a wide variety of applications, they are primarily made from petroleum-based resources which are non-renewable and of fossil origin. An alternative to these non-ren
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
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
This thesis proposes a new architectural approach for elderly housing in Selfoss, a town located approximately 45-50 minutes from Reykjavík. It is experiencing increased housing demand due to its growth as a service and commuter hub. Rather than directly adopting common local apartment typologies, the project reconsiders their form, spatial qualities, and relationship to the site, aiming to meet t
In 1996, Robert A. Haugen and Nardin L. Baker published a study where they had made a multi-factor model based on micro-variables on the American stock market between 1979 and 1993. In testing the model on the examined period they made an average annual return of 30,9 percent. They also tested the model on several other markets around the world with similar results. This study is a somewhat simple
The precise valuation and correct assessment of the value of imported goods should be preceded by determining the value of imported goods for Customs purposes. The provisions regulating the Customs valuation are overlapped and complicated; the reason which prompted the Author, through this paper, to eliminate this overlaps and simplify the complexity, using a new approach represented by reclassify
This thesis deals with driving forces for CSR reporting in China. More and more international companies have published their CSR reports under the concern of sustainable development. Chinese companies are facing the environmental and social challenges in China today. CSR reporting has been taken as a sustainable development strategy by the Chinese Central Government and the pioneering Chinese comp
The President of the European Commission, Josè Manuel Barroso is demanding an innovation society in the European Union, while many of the citizens of the European Union are sceptical about the entire organization. This thesis deals with the question whether the European Union is an engine for innovation or not. Based on the four innova-tion indicators “Sustainability and Sustainable Development”,
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
