Abstract: The invention provides for a magnetic resonance imaging system (100, 300). The magnetic resonance imaging system comprises: a subject support (120) configured for moving a subject between a loading position (121) and an imaging position (200); a receive magnetic resonance imaging coil (114) configured for being placed on the subject; and a light detection system (115) comprising at least one ambient light sensor for measuring light data (144). The light detection system is any one of the following: mounted to the main magnet such that the light data is measured from the imaging zone and mounted to the receive magnetic resonance imaging coil.

Abstract: The invention relates to a power semiconductor module having at least one power semiconductor switch, a cooling system, control electronics and a relieving network. According to this invention, these components are cast with an insulating medium to form a solid block, with the connections of the power semiconductor switch, the control equipment and the cooling system projecting out of the block. This yields a compact power semiconductor module which can be installed in an outdoor framework structure and is encapsulated to insulate it against environmental influences.

Abstract: A method of granulating lime powder or the like, use being made of a counterflow mixing machine with scraping and mixing means. The mixing means are rotated about a substantially vertical axis, and the bottom of the mixing vessel is covered with a layer of substantially ball shaped bodies, and raw material, e.g. lime, is subsequently added in a suitable amount having a specified moisture content, the mixing means subsequently being rotated such that the raw material after a specified period of time dependent on its moisture content, sticks to the ball shaped bodies.

Abstract: An energy transmission system includes a high-voltage direct-current transmission main in the form of a ring for supplying consumers located within the ring. The high-voltage d.c. main is fed from a three-phase network through rectifiers, and power output groups located at a plurality of points within the ring are connected to the latter. Each power group consists of a plurality of partial inverters connected in series between the poles of the d.c. main and an alternating current consumer network to be supplied is connected to the output of the inverters. Each output group of inverters includes a regulating device to monitor and regulate current and voltage to pre-set values dependent upon the power requirement of the inverter group such that one inverter of a group regulates the common direct-current applied to the output group and the other inverters of the group regulate their direct voltage so that the resulting sum voltage is equal to the amplitude of the direct voltage of the common main.