Abstract:
A method and apparatus for the liquefaction of a gas, more particullarly oxygen, starting from a stream of the gas under pressure. In the case of oxygen, the oxygen stream under pressure may conveniently be obtained following electrolysis of water under pressure and hydrogen may be liquefied in parallel with the oxygen so producing supplies of liquid hydrogen and oxygen in any desired proportions e.g. the proportions required in aerospace applications. The gas stream is divided into a product stream and a refrigeration stream which is expanded to low pressure in stages to provide return cooling flows against which either directly or indirectly via an inert buffer coolant, the product stream is cooled down to approximately the liquifying temperature.
Abstract:
A method and apparatus for the liquefaction of a gas, more particullarly oxygen, starting from a stream of the gas under pressure. In the case of oxygen, the oxygen stream under pressure may conveniently be obtained following electrolysis of water under pressure and hydrogen may be liquefied in parallel with the oxygen so producing supplies of liquid hydrogen and oxygen in any desired proportions e.g. the proportions required in aerospace applications. The gas stream is divided into a product stream and a refrigeration stream which is expanded to low pressure in stages to provide return cooling flows against which either directly or indirectly via an inert buffer coolant, the product stream is cooled down to approximately the liquifying temperature.
Abstract:
The present invention relates to decoys for heat-seeking missiles and methods of producing and using the same. The decoys are designed to be kinematic or pseudo-kinematic, producing one or more infra-red radiation emitting clouds that give the appearance of a moving infra-red target in the airspace in which the decoy has been released.
Abstract:
The present invention relates to decoys for heat-seeking missiles and methods of producing and using the same. The decoys are designed to be kinematic or pseudo- kinematic, producing one or more infra-red radiation emitting clouds that give the appearance of a moving infra-red target in the airspace in which the decoy has been released.
Abstract:
The present invention relates to decoys for heat-seeking missiles and methods of producing and using the same. The decoys are designed to be kinematic or pseudo-kinematic, producing one or more infra-red radiation emitting clouds that give the appearance of a moving infra-red target in the airspace in which the decoy has been released.
Abstract:
Compositions are described comprising small molecule active material, polymer, and aprotic solvent, and methods for making the same, as well as devices and sub-assemblies including the same.
Abstract:
There is provided a process for forming a contained second layer over a first layer, including the steps: forming the first layer having a first surface energy; treating the first layer with a reactive surface-active composition to form a treated first layer having a second surface energy which is lower than the first surface energy; exposing the treated first layer with radiation; and forming the second layer. There is also provided an organic electronic device made by the process.