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Six-port antennas for experimental verification of six degrees-of-freedom in wireless channels

In 2001, a paper published in Nature by Andrews et al postulated the use of six co-located antennas, namely three electric and three magnetic dipoles, to achieve up to a six-fold capacity increase in wireless channels, relative to that of a single antenna. In other words, six degrees of freedom (DOFs) can be supported in a wireless channel with co-located six-port transmit and receive antenna arra

SVARNE - an expert system based on tacit knowledge

The SVARNE project investigates how an expert system may be used when dealing with occurrences of violence within the care of people with cognitive impairments. The method used is potentially applicable in many other areas where the expert knowledge is ma

Population management and reproduction in Singapore

This paper addresses issues of population policy and stratified reproduction in Singapore. When Singapore gained its independence in 1965 the government initiated an ambitious modernization program. The economy was restructured, farmland and villages were torn down to give way to high‐rise housing estates and infrastructure, and the education system was reformed. Population management has been (an

Exploring the politics for a low-carbon transition.

This paper presents and discusses results from the research project LETS 2050 that studies the governance challenges of a transition to a low-carbon transport and energy system in Sweden by 2050 (www.lets2050.se ). A key starting point of the project was that a low carbon transition is technically possible and economically feasible, while the main challenge is political. At the moment there is an