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Exhaust gas recirculation (EGR) sweeps were performed on ethanol partially premixed combustion (PPC) to show different emission and efficiency trends as compared with diesel PPC. The sweeps showed that when the EGR rate is increased, the efficiency does not diminish, HC trace is flat, and CO is low even with 45% of EGR. NOx exponentially decreases by increasing EGR while soot levels are nearly zer

Inventory control is a crucial activity for many companies. Given the recent advances in information technology, there have never been greater opportunities for coordinated inventory control across supply chain facilities. But how do we design efficient control methods and policies that take advantage of the detailed information that is now becoming available? This doctoral thesis investigates the

There is a rhetoric in current European political agenda for widening access to ICT’s as part of a strategy for encouraging greater participation in public life. We argue against a naïve assumption that technology in itself could provide solutions. Knowing that systems with potential for meaningful use are available is a necessary, but not sufficient, condition to bring about desire for use in any

In the evolution of bird migration, partial migration is assumed to be an important intermediate step between migration and residency. Partial migration is characterised by the existence of both migratory and resident individuals in a given population. Compared to regular migration, relatively little is known about partial migrants and their migratory performances. In my thesis, I have studied th

By tightly focusing ultra-short pulses from a Ti:sapphire terawatt laser onto a high-Z metallic target, hard x-ray pulses of short duration are produced. In most of our previous work concerning x-rays, a 150 mJ laser pulse with a 110 A duration has been used. Using mostly tin and tantalum targets, hard x-rays in the 10-60 keV range have been produced and used in differential absorption imaging aro

The theme throughout this book is the buildning up of a new societal structure and the conflicts encompassed in such a project. I discuss the societal changes in Sandinista Nicaragua by way of placing the revolution in a historic, political, and social context. Throughout the work process it became increasingly clear that the conflicts of the FSLN were in principal due to two factors. First, the F

Rapporten utgör en undersökning av hur konsumtion påverkar hyresnivån för butikslokaler inom en marknadsplats. Det finns flera olika faktorer som påverkar hyresnivån för butikslokaler, men avgränsning har gjorts till att undersöka omsättning då den utgör en avgörande parameter. För fastighetsägare är det av största vikt att veta hur butiken går försäljningsmässigt för att kunna sätta en marknadsenThe report represents a survey of how consumption affects the level of rents for retail space in a marketplace. The demarcation has been done to examine the revenue when it is a crucial parameter. For property owners, it is vital to know how the shop runs in sales terms in order to set a rent. The report includes an analysis of two municipalities, Lund and Helsingborg, where a survey of two market

SAMMANFATTNING Apply Emtunga är ett företag som saknar struktur gällande sin orderprocess. Examensarbetets syfte är därför att kartlägga företagets orderprocess samt klarlägga vilka problem som uppstår i samband med denna. Examensarbetet ämnar därmed svara på följande tre frågor: - hur orderprocessen ser ut, vilka problem som kan identifieras i samband med orderprocessen samt vilka förslag på åtg

Purpose: There has been a lot of research about city rebranding, however in the realm of tourists and businesses as stakeholders. The aim of this study is to investigate the involvement of residents in the city brand as part of rebranding. This is an explicit and explorative research in how residents co-create their city during Amsterdam’s rebranding. Materials and Methods: Data for this research

In this work, we intend to employ nanowires for the realisation of an artificial neuron which can be used to design a neural network that will guide the new generation of non-von Neumann architectures such as Neuromorphic Computing. Possible applications are strongly related to Neuromorphic architectures and artificial intelligence, such as high-performance computers, robotics hardware and autonom

En funktion som har fått mycket uppmärksamhet bland matematiker är den så kallade Riemanns zeta-funktion, som definieras med hjälp av en summa av oändligt antal termer, en så kallad serie: zeta(s) = 1 + 1/2^s + 1/3^s + 1/4^s + ... Här är s=a+ib en komplex variabel med en reell del a och en imaginär del, där i har egenskapen i^2=-1. Värdet på den här serien kommer givetvis bero på vilket värde pWe establish the central convergence properties of ordinary Dirichlet series, including the classical result by Bohr, providing uniform convergence of the series where it has a bounded analytic continuation. We also derive a lower bound for the supremum of Dirichlet polynomials using Kronecker's theorem, of which we see one proof. With this knowledge and some probability theory we can follow t

Denna uppsats handlar om den politiska idén och ambitionen om att få den svenska landsbygden att leva och växa, genom att hjälpa mindre företag där att utvecklas. Den politiska retoriken om svensk landsbygd, har under lång tid handlat om att få avfolkningen att avstanna och vända. Ändå upplever de svenska landsbygdskommunerna fortfarande avfolkning eller mycket låg tillväxt. Genom kulturanalys av In this thesis I am approaching the idea and political ambition of making the Swedish rural areas come alive. By having the public sector aid small businesses to start up, develop and grow, the idea is to create attraction to rural places. The political rhetorics about Swedish rurality is, and has been for a long time, that the rural needs to be repopulated; and initiatives are taken on a politica

Popular Summary Wildfire events are expected to increase with the changing climate; thereby increasing atmospheric, economic, and human health impacts. A better understanding of the evolution of wildfire events can benefit regional meteorology models and global atmospheric models. Because of this, an attempt at modeling the evolution of wildfire was undertaken using 8 years of daily meteorologica

Studier har visat att det finns ett samband mellan arbetsminne och skrivande samt mellan arbetsminne och läsförståelse. Hos personer med läs- och skrivsvårigheter kvarstår ofta problemen med skrivning i vuxen ålder. Dessa problem anses av många forskare hänga samman med bl.a. arbetsminne och koncentration. Syftet med denna studie var att undersöka skriftlig berättarförmåga hos 14-15-åringar och 16

Background: 112 patients who received small and medium sized St.Jude Regent heart valves (19-25 mm) at 7 Scandinavian centers were studied between January 2003 and February 2005 to obtain non-invasive data regarding the hemodynamic performance at rest and during Dobutamine stress echocardiography (DSE) testing one year after surgery. Material and methods: 46 woman and 66 men, aged 61.8 +/- 9.7 (18

Problem IKEA want to avoid building a DC with insufficient capacity, and with imbalances in the material flow, therefore they want to run simulations of the system to see if the material flow is of satisfaction. The focus of this report is aimed towards capacity simulations of the Silo, the automated high storage area. Purpose Run different scenarios of the Silo with different conditions in o

Only 40% of the total CO2 emitted by human activities and natural sources remain in the atmosphere, since the rest is taken up by plants and oceans. In particular temperate and boreal forests are usually significant sinks of carbon, even if they are very susceptible ecosystems and they might turn into sources in consequence of the predicted temperature increase. That is one of the reasons why a ne

När man talar om nationalismen i Sverige är det mer eller mindre ofrånkomligt att man tänker på den nationalism som såg nationens geografiska gränser såsom överensstämmande med Sveriges nutida gränser – det är med andra ord den ”svenska” nationen man talar om. Härmed blir också den ”svenska” nationen den enda tänkbara nationella konstellationen för svenskt vidkommande, och alternativa nationella r