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Cloud-RAN (C-RAN) is a promising paradigm for the next generation radio access network infrastructure, which offers centralized and coordinated base-band signal processing in a BBU pool. This requires extremely low latency fronthaul links to achieve real-time signal processing. In this paper, we investigate massive MIMO pilot scheduling in a C-RAN infrastructure under a factory automation scenario
The central challenge tackled in this thesis is the development of an optical imaging approach capable of multidimensional image capture of dynamic samples. Many conventional optical imaging approaches, which can obtain dimensional information such as spectral, polarisation, or volumetric, to name a few, about samples either employ sequential image capture or parallelised detector arrangements. Du
Objective – Gothenburg University Library has implemented a process with the goal to combine quality assurance and strategic planning activities. The process has bottom-up and top-down features designed to generate strong staff-involvement and long-term strategic stability.Methods – In 2008 the library started implementing a system in which each library team should state a number of improvement ac
Coastal waters have strong gradients in dissolved organic matter (DOM) quantity and characteristics, originating from terrestrial inputs and autochthonous production. Enclosed seas with high freshwater input therefore experience high DOM concentrations and gradients from freshwater sources to more saline waters. The brackish Baltic Sea experiences such salinity gradients from east to west and from
Time-resolved small-angle neutron scattering (TR-SANS) was employed to observe temperature-induced phase transitions from the sponge (L-3 to the lamellar ( L (alpha) phase, and vice versa, in the water-oil (n-decane)-non-ionic surfactant (C12E5 system using both bulk and film contrast. Samples of different bilayer volume fractions phi and solvent viscosities eta were investigated applying various
Entreprenader löper stor risk att utsättas för hinder som medför att den avta-lade kontraktstiden inte kan hållas. Det kan exempelvis handla om extrema väderförhållanden som försvårar arbetet, eller arbetsområden som inte är tillgängliga för entreprenören på grund av en sidoentreprenör. Den här uppsatsen syftar till att utreda frågan om när ett hinder kan anses bero på beställaren, eller något förDuring the course of construction, there is a high risk of events that cause delays for the contractor. These events can for example con¬sist of extreme weather conditions that are obstructing the construction works, or the work area being occupied by sub-contractors. This thesis aims to investigate un¬der what conditions the contractor can be given extension of time and/or compensation for prolon
Equipment installation at MAX IV, a state-of-the-art particle accelerator in Sweden, requires accuracy and precision in the range of micrometers. The measurement technology used is laser tracking, with which the position of a movable reflector is determined, by reflecting the laser beam emitted from a stationary tracker. Data describing the real-time position of the reflector is handled in a softw
Den additiva tillverkningsprocessen och kvalificeringen av komponenter i metall är komplex och tillverkningsmetoden är inte ännu fullständigt förstådd. Syftet med detta examensarbete är därför att förvärva kunskap om kvalificeringsprocesser kopplade till additiv tillverkning i metall och att utveckla en hållbar kvalificering för additivt tillverkade komponenter hos Alfa Laval. KvalificeringsprocedThe process of additive manufacturing and qualification of components in metal is complex, and the manufacturing method is still not fully understood. Therefore, the purpose of this thesis is to gather knowledge of the qualification procedures connected to additive manufacturing in metal and to develop sustainable qualification for additively manufactured parts at Alfa Laval. The qualification pro
Popular Abstract in Swedish Streptococcus pyogenes Människan är ständigt koloniserad av en mängd olika mikroorganismer. De flesta bakterier är ofarliga och en del av dem är faktiskt nödvändiga för oss, t.ex. de tarmbakterier som hjälper oss att producera vitaminer. Grupp A streptokocker (GAS) eller Streptococcus pyogenes, är en av de vanligaste sjukdomsframkallande bakterierna hos människan. De kaWe have found that a set of group A streptococcal strains, primarily associated with skin infections, express surface-associated M proteins that bind plasminogen and plasmin with high affinity. The binding is mediated by a common 13 amino acid internal repeated sequence located in the NH2-terminal surface-exposed portion of these M proteins. It could be demonstrated that plasminogen, absorbed by t
Concerns have been raised about the marketization of science through the prevailing funding regime. However, the present article will discuss how it comes that the potentially marketable stem cell science is not more commercialized than what is currently the case. We approach this question by analysing discursive pluralism in defining the value of stem cells within a grant allocation process. More
This paper is very much inspired by an ongoing process in the Swedish court system. According to Unibet, an online betting company, the Swedish law on lotteries conflicts with EC law. Therefore, Unibet has brought an action against the Swedish state seeking, firstly, a declaration that it has the right, pursuant to Article 49 EC, to promote its gaming and betting services in Sweden and is not prev
The purpose of this master thesis is to explore IKEA’s return system and to suggest potential areas of improvement. The master thesis shall describe and identify the problems regarding handling material of the present return system, in order to suggest potential areas of improvement. This master thesis is an explorative study. Wide ranges of interviews were made and are the base of the study. Ob
questions: Where are the largest gaps between how HES (Heat Exchanger System) are working today and how they could be working according to lean philosophies? How could these gaps be reduced and what effect will it have to HES and their customers? Deliverables: The project contains a gap analysis which is the foundation to a new suggested work pattern. The new work pattern was implemented, evaluate
Innovations with the goal of creating a more sustainable economy and industry has been a topic of study for many researchers over the recent decades. This comes to no surprise since large organizations flag for the problematic consumption and production patterns that could lead to environmental problems at a global scale. The research on these environmental innovations that has been done up until
Under 2014 så delade Lunds kommun ut 830 gratis cykelhjälmar. Sådana styrande kampanjer är vanliga i Sverige, ändå har ingen kampanj någonsin blivit utvärderad. Syftet med denna uppsats är tvådelad. Först, att utvärdera hur många av de 830 cyklisterna som faktiskt bär hjälmen som de blev tilldelade. Sedan, att nå insikt om varför vissa cyklister väljer att bära hjälmen och varför andra väljer att In 2014, Lund municipality in Sweden handed out 830 bicycle helmets for free. Such governance campaigns are commonplace in Sweden, yet no campaign has ever been evaluated. There are two research aims to this thesis. First, to evaluate how many of the 830 cyclists actually wear the bicycle helmets that they received. Second, to gain insight into why some cyclists choose to wear the helmet that they
