Abstract: The present disclosure is an optical line test system that detects a distribution of loss points of an optical line in a longitudinal direction, using a coherent light measurement device, applies vibration to facility disposed on a path of the optical line, detects a vibration point of the optical line in a longitudinal direction upon applying the vibration, using the coherent light measurement device, and identifies the loss point based on correspondence between the detected loss point and vibration point.

Abstract: An object of this invention is to diminish a ratio of a concentration of N2O in the dilution air to a concentration of N2O in the measurement object gas diluted by the dilution air as much as possible by removing N2O in a dilution air so that a measurement accuracy of a concentration of N2O in a measurement object gas can be improved. A heater 33 that applies heat to the dilution air, a Pd catalyst 341 and a Pt catalyst 342 are arranged in this order on a flow channel where a dilution air used for diluting the measurement object gas flows, and N2O in the dilution air is oxidized to NOx or reduced to N2 by the Pd catalyst 341 and the Pt catalyst 342.

Abstract: An object of this invention is to diminish a ratio of a concentration of N2O in the dilution air to a concentration of N2O in the measurement object gas diluted by the dilution air as much as possible by removing N2O in a dilution air so that a measurement accuracy of a concentration of N2O in a measurement object gas can be improved. A heater 33 that applies heat to the dilution air, a Pd catalyst 341 and a Pt catalyst 342 are arranged in this order on a flow channel where a dilution air used for diluting the measurement object gas flows, and N2O in the dilution air is oxidized to NOx or reduced to N2 by the Pd catalyst 341 and the Pt catalyst 342.

Abstract: A terminal usage limiting apparatus for limiting the use of a portable telephone in a specific predetermined area. The terminal usage limiting apparatus 105 is installed to provide service to mobile terminals 101 in a usage limiting area 108. The terminal usage limiting apparatus 105 outputs control signals as a base station and additional usage limit messages. The terminal usage limiting apparatus 105 enables a mobile terminal 101 in the usage limiting area 108 to recognize the apparatus 105 as a base station so that the mobile terminal is switched from the base station to the apparatus 105. As a result, the mobile terminal 101 receives a usage limit message from the apparatus 105. Thus, the mobile terminal 101 enters into a predetermined operation limit mode where call originations are restricted. In addition, in this mode, the mobile terminal 101 receives control messages from the terminal usage limiting apparatus, and the control message includes a long code mask corresponding to the apparatus 105.

Abstract: A fluid actuator including at least two cylinders connected to a common pressurized-fluid supply mechanism. Actuation units are connected to piston rods of the cylinders, respectively. The piston of one of the cylinders is operated by pressurized fluid, and when the piston is moved back, the pressure in the cylinder is increased to operate the piston of the other cylinder. The actuation units are thus operated with a certain amount of interval of time or in a synchronous mode.