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A CMOS 500 MS/S charge sampler

A new sample-and-hold circuit based on the charge sampling technique is introduced, which integrates input current instead of tracking input voltage to realize high speed and low voltage sampling. Both the theoretical analysis and the experimental results prove that it can realize both sample-and-hold and amplification functions. A 500 MS/s charge sampling circuit is implemented in 0.25 μm CMOS pr

Numerical and experimental investigation of flame spread over a PMMA surface

The objective of this study is the experimental and numerical investigation of flame spread over a PMMA surface. A series of upward flame spread tests were carried out in a cylindrical combustion room, with measurements made for gas velocity, surface temperature and surface heat fluxes. A CFD based flame spread model was then used for the simulation of the experiment. This model consists of a four

Evenemangsmarknadsföringens organisering: Interaktion mellan aktörer på ett politiskt torg

This thesis comprises five papers discussing two case studies – the mega-event World Championships in Athletics 1995 in Göteborg and the regional festival Storsjöyran in Östersund, Sweden. The study adopts an organisational-theoretical perspective and focus on both intra- and interorganisational aspects of the marketing work. The purpose is to understand the structure and the processes of the orga

Gender and spatial patterns in the Scandinavian farmstead and outland

In the article the spatial organisation of everyday life at two deserted medieval farmsteads/hamlets, and the practise of outland use in their surrounding landscapes are discussed from a gender perspective. A gender hierarchy, with male domination, is clearly visible in the matierals.

Estrogen receptor and multixenobiotic resistance genes in freshwater fish and snails: identification and expression analysis after pharmaceutical exposure

Popular Abstract in Swedish Bakgrund Många känner idag till att det är viktigt att gamla läkemedel lämnas in till apoteken för att de inte ska hamna i naturen. Det som man oftast inte känner till är att även de läkemedel som vi konsumerar riskerar att tillslut hamna i naturen. Eftersom svenska reningsverk bara tar bort en bråkdel av läkemedelsresterna i vår urin. Det här leder till att man vid utlPharmaceuticals are today released into aquatic environments where they can interfere with organisms' biological processes.The general research objective was to analyze how aquatic freshwater organisms are affected by exposure to pharmaceuticals that are categorized by the EU as potential risk factors to the environment (i.e., 17α-Ethinylestradiol (EE2) and diclofenac). The main aim of this thesis