A brief review is given of some fundamental aspects of high-resolution core-level photoemission and of its application to studies of pure and adsorbate covered metal surfaces. We first give a short description of the basic theory and then turn to a number of examples. The first group of examples is aimed at demonstrating the use of core-level binding energy shifts for deriving the surface and inte

The European solar energy business faces the challenge of developing more cost-effective solar energy systems and one solution could be using concentrating hybrid PVT systems. Two such hybrids, the Swedish systems MaReCo and Solar8, are evaluated in this study. MaReCo is a fixed concentrating system with a high angle of acceptance. Solar8 is a new system, which is under development. It is inspired

A fundamental problem in vision is how to identify the occluding contours of objects and surfaces, given the ambiguity inherent in low-level visual input. A computational model is proposed for how occluding contours could be identified by making use of simple heuristics that reduce the ambiguity of individual features. In the striate cortex, a large majority of cells are selective for both contras

Kursen Arbetsorganisation (MAM026, 3p) är väletablerad men de senaste åren har vissa förändringar genomförts (Blomé, 2003) och numera ingår tre olika moment vid examinationen: dugga, poster och skriftlig tentamen. Drivkraften till att utveckla poster som kompletterande examinationsform har varit att öka inslagen av reflektion och aktivt experimenterande, vilket är viktiga inslag för att skapa lära

The recent literature on the duration of trade has predominantly analyzed the determinants of trade flow durations using Cox proportional hazards models. The purpose of this paper is to show why it is inappropriate to analyze the duration of trade with continuous-time models such as the Cox model, and to propose alternative discrete-time models which are more suitable for estimation. Briefly, the

Otillräckliga insatser, låg status, svag styrning och litet inflytande från branscherna gör att lärlingsutbildningarna inte lyfter trots politiska initiativ. Arbetsgivarna bör ta större del i utformningen och genomförandet av utbildningarna.

IgE is a minor component of the humoral immune response but one that is of extensive medical importance as it is a major mediator of type 1 hypersensitivity or allergy. Allergy affects up to 30% of the population in the industrialized countries, consequently affecting the quality of life of millions of people. In this study we sought to investigate the IgE repertoire and its evolution as it occurs

For developers of automotive control, prototyping and initial tests are a hassle. Commercial solutions are available but the price and especially the price/performance ratio opens the field for more cost effective solutions. Automotive rapid prototype systems seen so far are mainly processor based systems with standard interrupt driven measurement and actuation. Control systems based on high time