Abstract: An aerial vehicle includes an outer surface, an arithmetic unit and a control unit. The arithmetic unit calculates a control command using a control parameter. The control unit controls an attitude of the aerial vehicle or a thrust of the aerial vehicle based on the control command. At least a part of the outer surface of the aerial vehicle is composed of ablation material. The arithmetic unit changes the control parameter in response to an amount of shape change of the aerial vehicle caused by disappearance of the ablation material.

Abstract: An aerial vehicle includes an outer surface, an arithmetic unit and a control unit. The arithmetic unit calculates a control command using a control parameter. The control unit controls an attitude of the aerial vehicle or a thrust of the aerial vehicle based on the control command. At least a part of the outer surface of the aerial vehicle is composed of ablation material. The arithmetic unit changes the control parameter in response to an amount of shape change of the aerial vehicle caused by disappearance of the ablation material.

Abstract: The present invention provides a radio communication apparatus that does not need installation of multiple radio devices in a communication node and requires only a single radio device to construct a data link of any of line-of-sight communication, over-the-horizon communication and aerial-vehicle communication.

Abstract: The present invention provides a radio communication apparatus that does not need installation of multiple radio devices in a communication node and requires only a single radio device to construct a data link of any of line-of-sight communication, over-the-horizon communication and aerial-vehicle communication.

Abstract: Method for producing a sputtering target with a lowered oxygen content by providing an alloy selected from the group consisting of NiFe, CoCrPt, CoCrPtB, CoPt, PtMn, FeAlSi, FeCo, and FeMn; adding an oxygen scavenger element to the molten alloy selected from the group consisting of Group 4A, 3B and 4B elements; melting the alloy and the oxygen scavenger; reacting the oxygen scavenger element with oxygen in the melt to reduce the oxygen content of the alloy to a level of not more than 50 ppm and achieving a residual oxygen scavenger element content of not more than 100 ppm.

Abstract: A sputtering target with a lowered oxygen content is provided which can prevent a deterioration in properties of a magnetic film caused by unavoidably included oxygen present in an alloy material system. The sputtering target contains an oxygen scavenger comprising an element capable of reducing metal components constituting the sputtering target, the lowered oxygen content of the sputtering target having been achieved by the oxygen scavenger.

Abstract: A peeling detector for a tunnel wall capable of rapidly inspecting the tunnel wall by effectively using infrared radiation is provided. The detector heats a tunnel wall 1 with a light emitting heater 4 while moving. An infrared camera 6 detects infrared radiation radiated by the wall after heating. Based on the quantity of the infrared energy, a difference in the temperature between peeled and normal portions induced by heating is grasped to evaluate whether the peeling of the tunnel wall 1 is present or not.

Abstract: While a vehicle is traveling, a line sensor camera shoots a tunnel wall surface. Line images from the line sensor camera which outputs a line image equivalent to one line from 2,048 pixels are digitized, and stored in a buffer memory in a state arranged in a moving direction of the line sensor camera. Whenever image data corresponding to 2,048 pixels×472 lines are stored, the image data are divided into four plane image data each composed of 512 pixels×472 lines. Each plane image is converted to a video image signal by a video signal converter in chronological order, and the video image signal is recorded on a video tape by a video deck. The recorded video tape is played back by another video deck, and a reproduced image is image processed by an image processor, whereby the state of the tunnel wall surface can be inspected. Thus, the equipment cost is reduced, and the time required for inspection shortened.