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QCD event generators report in the CERN report Physics at LEP2

QCD EVENT GENERATORS This report is a survey on QCD Event Generator issues of relevance for LEP 2. It contains four main sections: a summary of experience from LEP 1, extrapolations to LEP 2 energies, Monte Carlo descriptions and standardization issues.

Eye movements during visual imagery have a functional role and are related to individual differences in spatial imagery ability

This study investigated eye movements during visual imagery, under two experimental conditions. Participants recalled complex pictures from memory while looking at a blank screen under a condition of free viewing and under a condition where fixation was maintained in the centre of the screen. The recall task was to orally describe the picture. Results showed that, under the condition of free viewi

Purification of process water in a thermomechanical pulp mill by nanofiltration

Process water from a Swedish thermomechanical pulp mill was purified by consecutive treatment by microfiltration, ultrafiltration and nanofiltration. In the present study the nanofiltration step was studied. The flux and retention of four nanofiltration membranes were compared. The NF99HF membrane (Alfa Laval, Lund, Sweden), had significantly higher flux and higher retention of lignin and charged

A comparison between two exercise tests on cycle; a computerised test versus the Åstand test.

Two submaximal cycle ergometer test methods, the Astrand nomogram test and a computerized two-point extrapolation test (Cat Eye ergociser, commercially available), were compared in order to determine agreement and repeatability of estimates of maximum oxygen consumption (VO2max). Twenty healthy women, divided into two groups of ten according to their age (mean 35.3 and mean 46.9), performed test-r