Bluetooth is currently emerging as one of the most promising personal wireless network technologies. It is primarily designed as a cable replacement between for example a cell phone and a PDA. However the price/performance level also makes it a promising technology outside the office. The automation industry is currently showing interest in using Bluetooth for more industrial applications. However

A specific pull-out test used to determine in-situ concrete compressive strength is analyzed. This test consists of a steel disc that is extracted from the structure. The finite element analysis considers cracking as well as strain hardening and softening in the pre- and post-failure region, respectively. The aim is to attain a clear insight into structural behavior. Special attention is given to

In order to reduce the environmental impacts within the building sector, recycling of building materials is on the increase. Projects are carried out on several levels and are often well analysed regarding the economic consequences; however, the actual environmental effects are rarely studied. This paper presents a study of the environmental impacts due to a building from 1997 with a large proport

Temporary agency work has come to the fore during recent years as the phenomenon in itself has become more frequent on many national labour markets. This thesis examines how, by means of labour law and collective bargaining, the balance between, on the one hand, the employers’ need for flexibility, and on the other hand, the work-force’s need for stability and continuity in the form of income and

The purpose of this chapter is to identify a number of significant contemporary changes in the "old" diplomacy, associated with the Westphalian system of sovereign states, and to address the question of how thoroughgoing these changes may be. Specifically, it discusses three aspects of change: technological developments, the emergence of new types of actors in the international arena, and the chan

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Popular Abstract in English This work is focused on two accident types: accidents between motorized vehicles and pedestrians, and accidents between motorized vehicles and bicyclists. It aims at better understanding how the number of accidents is related to the number of road users; and how the speed at the site and age of the victim is related to how severe the injuries are. The work relies on sevThe aims of this work are to better understand (1) the relation between exposure and the risk of an accident between pedestrians and motorized vehicles and between bicyclists and motorized vehicles occurring at urban intersections and (2) how the speed environment and the victim´s age relate to the injury severity/outcome once a pedestrian or a bicyclist has been struck by a motorized vehicle. Cro

Lignocellulosic materials, such as wood, waste products from the forestry industry, agricultural residues and herbaceous crops, serve as an abundant and comparatively cheap feedstock with the potential to be used for large-scale ethanol production. However, the complex structure of lignocellulosic materials, the presence of various hexose and pentose sugars in hemicellulose, and the presence of va

The paper examines and illustrates different trends in relation to historical energy use-related intensities and corresponding CO2 emission trends. The methodology encompasses a decomposition quantitative approach for estimating decoupling trends to energy use and economic and demographic parameters driving CO2 emission levels. The analysis covers both global and regional trends for the period 197

Popular Abstract in Swedish Människor har sedan länge känt till att deras hälsotillstånd varierar beroende på årstid. Vissa av oss drabbas av påtagliga årstidsbundna hälsoproblem och så pass hårt att viktiga funktioner påverkas. Även om dessa företeelser observerades före kristen tidräkning, är bara sedan mitten av förra seklet som man studerat dem vetenskapligt. Det har blivit klarlagt att alla vSeasonal Affective Disorder with depressive episodes during the autumn/winter seasons (winter depression) is common. Outpatients with winter depression were studied regarding temperament, psychopathology, social characteristics, psychosocial functioning and the neuropeptides corticotropin - releasing hormone (CRH) and neuropeptide Y (NPY), which are known to be involved in stress-regulation. The t