Abstract: A microwave or terahertz and neutron radiation type detector, which uses an orbitron as a radiation source. The detector may have a polarity switching apparatus to enable the orbitron to selectively change from between short wave to neutron emission functions. A highly compact and lightweight identifier of explosives and other chemicals, which may be so small and light as to be hand held, and which is effective at stand-off distances, is thereby provided.

Abstract: There is provided a SIP terminal control system capable of reporting a download request, an upgrade request, and an upload request from an IP network side to each terminal without requiring its own database for managing the IP address of each terminal or its own authentication mechanism for authentication of each terminal for terminal control. The SIP terminal control system reports various requests such as a download request, an upload request, and an upgrade request to a SIP terminal from an IP call control device (41) accommodating the SIP terminal by using the SIP, so that a database managing the IP address of each terminal and an authentication mechanism for performing authentication can utilize the existing function of the IP call control device (41) and access the SIP terminal over the firewall by using the SIP.

Abstract: There is provided a SIP server realizing a system capable of connecting a terminal in a local communication network to a carrier communication network without preparing a customer information database based on the communication company system specification or an IP call control device, thereby simplifying the system configuration and reducing the cost. The SIP server (30) controls connection between SIP terminals by the SIP extended network (10) built on the Internet network. A SIP mutual connection unit (33) containing one or more carrier identification numbers or representative numbers acquired from each carrier is provided in the extended network SIP server (30).