Exposure to vibrations from tools and machines used in construction work can induce damages to the human body. One of the most frequent symptoms is the hand-arm vibration syndrome commonly known as white fingers. The proportions of the international workforce exposed to vibrations are high and dominating sectors are construction, agriculture, forestry, and transport. Particularly exposed construct

Standard H∞-control can be applied to disturbaace attenuation design, but it has then fundamental practical limitations.

Läxhjälp bör bygga på att det är kvalificerad personal som svarar för verksamheten. I debatten om rut-avdrag har två viktiga frågor inte ställts: 1. Varför har svenska skolan hamnat i en situation av sviktande måluppfyllelse? 2. Varför ska de som behöver extra stöd, oberoende av vilken nivå de ligger på studiemässigt, inte få den mest kvalificerade hjälpen, det vill säga utbildade lärare?

In which ways has China‘s rapid social change crystallized into differences between its generations’ values? The significance of intergenerational value gaps in values involving work,family, materialism, and individualism is reported based on a mixed-methods approach. A set of qualitative interviews with businessmen and their fathers was conducted in Shanghai in late 2005. Semi-structured intervie

One hundred and forty four current and 26 former workers in a plant producing barrels for rocket guns from an epoxy resin containing methyltetrahydrophthalic anhydride (MTHPA; time weighted average air concentration up to 150 uglm') were studied. They showed higher frequencies of work related symptoms from the eyes (31 v 0%; p < 0-001), nose (53 v 9%; p < 0-001), pharynx (26 v 6%; p < 0-01), and a

In this paper, we present results on the application of reduced-rank adaptive filtering techniques to the problem of interference suppression in ultra-wideband (UWB) communications. It is shown that reduced-rank optimum combining (OC) methods, in particular the eigen-canceler (EC), are effective in suppressing interference modeled as 802.11a signals. Simulation results are presented to show that t

A methodology for deriving individual risk to people in a health care facility due to fire, is presented. The risk is expressed by the First Order Second Moment reliability index ß. The evacuation time for the patients is compared to the time to untenable conditions arise. Subjecting variables to uncertainty results in a reliability index value for the escape time margin. The influence on reliabil