Abstract: A sampling method includes: obtaining topographical information about a predetermined wide area by using a first sensor on a work machine; selecting a candidate area within the wide area, the candidate area is less than an area of the wide area, and setting a movement route based on the information about the wide area, the movement route allows a distal end portion of an arm provided on the work machine to reach a preparation position without coming into contact with an obstacle, the preparation position being located above the candidate area; moving the distal end portion of the arm along the movement route to the preparation position, and obtaining topographical information about the candidate area by using a second sensor on the distal end portion of the arm; and specifying a sampling point based on the information about the candidate area and performing sampling at the specified sampling point.

Abstract: A sampling system includes a sampler, a projector, a camera, an arm, and a controller with the sampler, projector, and camera being located at the distal end of the arm. The projector projects a reference mark including a line with a predetermined shape onto a ground surface and the camera captures images of the projected mark. The controller is configured to obtain the size of the projected line based on the camera images. The controller adjusts the projector height position based on the line size and specifies a sampling point for inserting the sampler based on the camera images of the projected mark.

Abstract: A landing gear of an aircraft of the present invention, includes a core section with a honeycomb structure, including a plurality of cell walls and a plurality of cell holes defined by the plurality of cell walls; a cover section which covers the core section; and a hole provided in the core section to absorb an impact, the hole having a diameter larger than that of the plurality of cell holes and extending in an extending direction of the plurality of cell holes.

Abstract: A sampling method includes: obtaining topographical information about a predetermined wide area by using a first sensor on a work machine; selecting a candidate area within the wide area, the candidate area is less than an area of the wide area, and setting a movement route based on the information about the wide area, the movement route allows a distal end portion of an arm provided on the work machine to reach a preparation position without coming into contact with an obstacle, the preparation position being located above the candidate area; moving the distal end portion of the arm along the movement route to the preparation position, and obtaining topographical information about the candidate area by using a second sensor on the distal end portion of the arm; and specifying a sampling point based on the information about the candidate area and performing sampling at the specified sampling point.

Abstract: A radar satellite of the present invention comprises a radar unit including a plurality of radar panels coupled to each other in a single flat plate shape, each of the plurality of radar panels including a plurality of antennas which transmit and receive radar waves, and a solar cell; and a communication/control unit which performs communications with a spot on an earth or a spacecraft. The radar unit includes: a radar panel array which is a plate-shaped structure including the plurality of radar panels; and a deployable truss structure including a plurality of side frame members supporting the plurality of radar panels, respectively, and coupled to each other in such a manner that the side frame members are foldable and deployable.

Abstract: A radar satellite of the present invention comprises a radar unit including a plurality of radar panels coupled to each other in a single flat plate shape, each of the plurality of radar panels including a plurality of antennas which transmit and receive radar waves, and a solar cell; and a communication/control unit which performs communications with a spot on an earth or a spacecraft. The radar unit includes: a radar panel array which is a plate-shaped structure including the plurality of radar panels; and a deployable truss structure including a plurality of side frame members supporting the plurality of radar panels, respectively, and coupled to each other in such a manner that the side frame members are foldable and deployable.

Abstract: A landing gear of an aircraft of the present invention, includes a core section with a honeycomb structure, including a plurality of cell walls and a plurality of cell holes defined by the plurality of cell walls; a cover section which covers the core section; and a hole provided in the core section to absorb an impact, the hole having a diameter larger than that of the plurality of cell holes and extending in an extending direction of the plurality of cell holes.

Abstract: A method comprises: launching observation means configured to observe upper air environment immediately before launching an airship to acquire ambient air data on the actual conditions of the upper ambient air including altitude, pressure, wind direction, wind speed and temperature; determining an ascension profile for the airship by simulation using the ambient air data on the actual conditions of the ambient air; determining an initial quantity of Helium gas conforming to the actual conditions of the ambient air; and adjusting the quantity of Helium gas in the Helium room to the initial quantity of Helium gas to set an initial buoyancy. The method sets hull parameters for the hull of the airship to provide an ascension profile conforming to the actual conditions of the ambient air.

Abstract: A method comprises: launching observation means configured to observe upper air environment immediately before launching an airship to acquire ambient air data on the actual conditions of the upper ambient air including altitude, pressure, wind direction, wind speed and temperature; determining an ascension profile for the airship by simulation using the ambient air data on the actual conditions of the ambient air; determining an initial quantity of Helium gas conforming to the actual conditions of the ambient air; and adjusting the quantity of Helium gas in the Helium room to the initial quantity of Helium gas to set an initial buoyancy. The method sets hull parameters for the hull of the airship to provide an ascension profile conforming to the actual conditions of the ambient air.