Abstract: Food packaging comprising a container containing food and having an upper opening allowing access to the food, and first removable closure means for the upper opening, an end wall comprising at least one perforated zone having holes that can prevent food from passing through while allowing the passage of steam, the packaging comprising second removable closure means that can close off the holes, the second closure means being accessible from the outside. The packaging also comprises a solid skirt, projecting out from the container surrounding the perforated zone, and having at least one opening, the skirt promoting the passage of steam towards the perforated zone and towards the container.

Abstract: A multi-lumen balloon for use in a fluted balloon centering catheter and method for providing the same. The multi-lumen balloon maintains a radiation source at the center of a cardiovascular artery, has improved blood perfusion capability, and has improved balloon refolding characteristics. The method of fabricating a multi-lumen balloon designed for a radiation centering catheter uses an improved extrusion process that allows the manufacture of the multi-lumen balloon sub-assembly to be done separately from the catheter shaft assembly.

Abstract: A multi-lumen balloon for use in a fluted balloon centering catheter and method for providing the same. The multi-lumen balloon maintains a radiation source at the center of a cardiovascular artery, has improved blood perfusion capability, and has improved balloon refolding characteristics. The method of fabricating a multi-lumen balloon designed for a radiation centering catheter uses an improved extrusion process that allows the manufacture of the multi-lumen balloon sub-assembly to be done separately from the catheter shaft assembly.

Abstract: Sectorisation has been used in cellular communications networks in order to increase capacity without the need for obtaining new cell sites. However, previously, the increase in the number of main antenna beams provided by a base station transceiver has not produced a commensurate increase in capacity. For example, a hex sectored tricellular network is found to provide an increase in capacity by a factor of only 1.6 over a tri sectored tricellular network despite the fact that twice as many antenna beams are provided. A multiple beam antenna arrangement is described where the increase in capacity is commensurate with the increase in the number of antenna beams provided. In one example, a nine sectored tricellular CMDA network is described which comprises a multiple beam antenna arrangement with six antenna elements each provided as columns. The antenna beams may be orthogonal and a 6×6 Butler matrix beamformer is used which is advantageously loss less.

Abstract: A broadcast data receiver (BDR) is provided and a method of using the BDR for the production of a pseudo stable reference control for the reliable generation of composite video signals. The BDR receives video, audio and/or auxiliary data from a broadcaster can stored a part of all of the data in storage means, typically in the form of a hard disk drive. When the BDR is deriving video data from the hard disk due to the BDR being disconnected from the signal feed from the broadcaster, the BDR uses a pseudo stable reference produced by deriving one or more values from stable frequency information embedded in incoming data. The pseudo stable reference is used to control the frequency of a VCXO in the BDR, thereby allowing accurate color sub-carrier frequency generation for the generation of a final video output.

Abstract: A DC-DC converter capable of generating outputs of 100 KV without a transformer comprises a silicon opening switch (SOS) diode connected to allow a charging current from a capacitor to flow into an inductor. When a specified amount of charge has flowed through the SOS diode, it opens up abruptly; and the consequential collapsing field of the inductor causes a voltage and current reversal that is steered into a load capacitor by an output diode. A switch across the series combination of the capacitor, inductor, and SOS diode closes to periodically reset the SOS diode by inducing a forward-biased current.