District heating and cooling networks are widespread in most Nordic and Baltic countries. Võimalik on ka lisakasu kogumine likviidsuse ja laenuvõime suurendamiseks.
Quinn, Jack; Christensen, John L. Technical Monitor The Electron Drift Instrument EDI is a new technique for measuring electric fields in space by detecting the effect on weak beams of test electrons.
This U. Hardware for Cluster was developed in the U. The Cluster satellites carrying the original EDI instruments were lost in the catastrophic launch failure of first flight of the Arianne-V rocket in A satellite failure caused a loss of the Equator-S mission after only 5 months, but these operations were extremely valuable in learning about the characteristics and operations of the complex EDI instrument.
The Cluster mission, satellites, and instruments underwent an extensive on-orbit commissioning phase in the Fall ofcarrying over Auxiliary Trading System January During this period all elements of the instruments were checked and careful measurements of inter-experiments interferences were made.
EDI is currently working exceptionally well in orbit. Initial results verify that all aspects of the instrument are working as planned, and returning highly valuable scientific information.
The first two papers describing EDI on-orbit results have been submitted for publication in April, The principles of the EDI technique, and its implementation on Cluster are described in two papers by Paschmann et al.