Abstract: An instrument landing system (ILS) is described. The ILS comprises a plurality of antennas and a plurality of antenna radio units (ARUs). Each ARU of the plurality of ARUs operates to generate a modulated RF signal provided to a different one of the plurality of antennas for transmission. The ILS further comprises a central processing unit that operates to control the ARUs to adjust synchronization between the modulated RF signal provided by the ARUs to the plurality of antennas for transmission.

Abstract: An instrument landing system (ILS) is described. The ILS comprises a plurality of antennas and a plurality of antenna radio units (ARUs). Each ARU of the plurality of ARUs operates to generate a modulated RF signal provided to a different one of the plurality of antennas for transmission. The ILS further comprises a central processing unit that operates to control the ARUs to adjust synchronization between the modulated RF signal provided by the ARUs to the plurality of antennas for transmission.

Abstract: Compositions containing diamond particles for producing reflective coatings and methods of wet and dry application of diamond particles to substrates to produce reflective coatings. The coatings have a desirable appearance, are robust and easy to apply.

Abstract: Compositions containing diamond particles for producing reflective coatings and methods of wet and dry application of diamond particles to substrates to produce reflective coatings. The coatings have a desirable appearance, are robust and easy to apply.

Abstract: A composite material and method of making the same are disclosed. An example method for fabricating a composite material forms a core layer between opposing outer layers. The core layer includes a mixture of at least one metallic powder and at least one expanding agent. The example method removes moisture and gasses from the core layer by applying a first vacuum pressure to at least the core layer. The example method compresses the core layer to bond the core layer to the outer layers while a second vacuum pressure is applied to at least one of the outer layers. The resulting composite material has a compacted core layer that is substantially free from moisture and imbedded gasses. Additionally, the outer layers are substantially free from perforations enabling the escape of gas and moisture during foaming of the core layer. The composite material may be reshaped to form semi-finished products which, in turn, may be heated to foam the core material to form finished products.

Abstract: A composite material and method of making the same are disclosed. An example method for fabricating a composite material forms a core layer between opposing outer layers. The core layer includes a mixture of at least one metallic powder and at least one expanding agent. The example method removes moisture and gasses from the core layer by applying a first vacuum pressure to at least the core layer. The example method compresses the core layer to bond the core layer to the outer layers while a second vacuum pressure is applied to at least one of the outer layers. The resulting composite material has a compacted core layer that is substantially free from moisture and imbedded gasses. Additionally, the outer layers are substantially free from perforations enabling the escape of gas and moisture during foaming of the core layer. The composite material may be reshaped to form semi-finished products which, in turn, may be heated to foam the core material to form finished products.

Abstract: The invention relates to a unified messaging communication method and a unified messaging communication system (13), said system being capable of being used in common by several users. The inventive communication system comprises a first central computer (3) connectable to the Internet. According to the invention, messages addressed to one user or one group of users can be stored in said computer for later enquiry by the corresponding user or by a member of the user group. Said messages are sent by another user to said user or user group by means of a corresponding message transmission protocol selected from a group of different protocols, and are transmitted to the first computer (3) by means of an intermediary connection of at least one other computer (6). Said central computer (3) comprises a telephone-answering module (10) using a user-specific text which can be determined by the corresponding user or by a member of the corresponding user group.

Abstract: A vertical dipole array (2, 3 to 2.sup.(n), 3.sup.(n)) is formed on a substrate (1) using stripline techniques. The dipoles are supplied with RF energy from a feed system consisting of stripline conductors (4, 4', 5, 6, 7, 7', 9, 12). By a parasitic compensating radiator (11) provided opposite these conductors on the same side of the substrate, the influence of the conductors on the radiation pattern of the dipoles is largely compensated for.The conductors of the feed system are arranged so that a combination of a parallel feed and an equal line length series feed (or, if the radiation pattern is to be raised, a series feed with suitably chosen line lengths) is obtained.