Abstract: A system for investigating a plurality of samples having varying positions or orientations moving with respect to the system, the system including an emitter of terahertz radiation for irradiating a sample provided in a sample space; a detector of terahertz radiation configured to detect radiation reflected from said sample space; and determining means to determine if radiation reflected from said sample space is from a sample with a predetermined orientation in the sample space.

Abstract: A system for investigating a plurality of samples having varying positions or orientations moving with respect to the system, the system including an emitter of terahertz radiation for irradiating a sample provided in a sample space; a detector of terahertz radiation configured to detect radiation reflected from said sample space; and determining means to determine if radiation reflected from said sample space is from a sample with a predetermined orientation in the sample space.

Abstract: In a housing of a semiconductor device there are provided a plurality of semiconductor chips captivated in a preformed sub-assembly and arranged to present contact areas for connection to anode and emitter electrodes of the semiconductor housing. Electrically conductive contact pin arrangements project from electrically insulated channels in the preformed sub-assembly, an inward end of each of the pin arrangements being so arranged, when urged into its channel, as to provide an electrical connection to a part of the surface of a semiconductor chip. There is a sheet of electrically conductive material, resting on a base level of an inner surface of the emitter electrode and electrically isolated therefrom by an electrically insulating insert, as a means for distributing an electrical signal and making simultaneous contact with the opposite ends of the pin arrangements.

Abstract: A support structure for an operational telecommunications network deploys a set of individual technologies and provides a set of services to customers. The support structure is divided into a set of domains each of which provides a particular management function for the network. These domains include a domain for managing customer handling functions, a domain for managing the network, a domain for managing the individual technologies deployed in the network, a domain for managing instances of the individual services provided by the network, a domain for managing billing operations, a domain for managing the services provided by the network when grouped together to form a portfolio, and a domain for managing jobs performed by the human workforce for the network. Each domain has its own set of databases and systems for performing the required management operations and also interfaces to some of the other domains. Each domain is implemented by one or more tightly integrated computers.