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Glädjen i att tvingas tänka nytt : En studie av verksamhetsutveckling vid två folkbibliotek i Skåne

Vid biblioteken i Burlöv och Ängelholm har tidigare bedrivits projekt att främja folkbibliotekens utveckling mot kulturhus (Kulturnämnden 2012). Arbetet med projekten, Kulturhusprojektet i Arlöv och Kulturstråket i Ängelholm, följdes i en studie av författaren och har rapporterats tidi-gare (Rivano Eckerdal 2013). Föreliggande rapport är resultatet av en uppföljande studie som be-dri¬vits under år

A Dimension-Breaking Phenomenon for Water Waves with Weak Surface Tension

It is well known that the water-wave problem with weak surface tension has small-amplitude line solitary-wave solutions which to leading order are described by the nonlinear Schrödinger equation. The present paper contains an existence theory for three-dimensional periodically modulated solitary-wave solutions which have a solitary-wave profile in the direction of propagation and are periodic in t

Are We Promoting a Surface Approach to Learning During the First Year of Engineering Educations?

The legislated goals for Master of Science in Engineering educations include goals like having the ability to critically, independently and creatively identify, formulate and handle complex problems as well as participate in research and development work and thus contribute to knowledge development. One might therefore argue that these educations are required to promote a deep approach to learning

Off-design performance investigation of a low calorific value gas fired generic-type single-shaft gas turbine

When low calorific value gases are fired, the performance and stability of gas turbines may deteriorate due to a large amount of inertballast and changes in working fluid properties. Since it is rather rare to have custom-built gas turbines for low lower heating value (LHV) operation, the engine will be forced to operate outside its design envelope. This, in turn, poses limitations to usable fuel

First experiments on an evaporative gas turbine pilot power plant: Water circuit chemistry and humidification evaluation

The evaporative gas turbine (EvGT), also known as the humid air turbine (HAT) cycle, is a novel advanced gas turbine cycle that has attracted considerable interest for the last decade. This high-efficiency cycle shows the potential to be competitive with Diesel engines or combined cycles in small and intermediate scale plants for power production and/or cogeneration. A 0.6 MW natural gas-fired EvG

Dose-related changes in retinal function and PKC-alpha expression in rabbits on vigabatrin medication : Effect of vigabatrin in the rabbit eye.

BACKGROUND: To investigate, in a rabbit model, the effect of two different doses of vigabatrin (VGB) on retinal function and morphology. METHODS: Twenty-nine rabbits of mixed strain were divided into two groups, receiving either high-dose (n = 15) or low-dose (n = 14) oral VGB treatment (cumulative dose 29.8 +/- 2.9 g and 14.2 +/- 0.6 g respectively). Ten rabbits receiving water served as control

Implementation and validation of a new soot model and application to aeroengine combustors

The modeling of soot formation and oxidation under industrially relevant conditions has made significant progress in recent years. Simplified models introducing a small number of transport equations into a CFD Code have been used with some success in research configurations simulating a reciprocating diesel engine. Soot formation and oxidation in the turbulent flow is calculated on the basis of a

Extracting Data from WSNs: A Service-Oriented Approach

This chapter describes the architecture of a middleware layer between low-level sensing devices and higher level software layers, to support the requirements of a software infrastructure for networked enterprises. The development of such middleware layer is an important problem, as demonstrated by the number or research papers and the variety of approaches that can be found in literature. The main

Visualization of Different Flashback Mechanisms for H-2/CH4 Mixtures in a Variable-Swirl Burner

Flame flashback from the combustion chamber to the premixing section is a major operability issue when using high H-2 content fuels in lean premixed combustors. Depending on the flow-field in the combustor, flashback can be triggered by different mechanisms. In this work, three flashback mechanisms of H-2/CH4 mixtures were visualized in an atmospheric variable-swirl burner using high speed OH* che

Novel High-Performing Single-Pressure Combined Cycle With CO2 Capture

The European electric power industry has undergone considerable changes over the past two decades as a result of more stringent laws concerning environmental protection along with the deregulation and liberalization of the electric power market. However, the pressure to deliver solutions in regard to the issue of climate change has increased dramatically in the last few years and has given rise to

Inflammatory risk factors and pathologies promoting Alzheimer's disease progression: is RAGE the key?

Epidemiological studies reveal growing evidence that most cases of Alzheimer`s Disease (AD) likely involve a combination of genetic and environmental risk factors. Identifying and validating these risk factors remains one of the most critical scientific challenges. Several diseases appear to have strong implications for neurodegeneration leading to dementia. This risk encompasses different forms o