Abstract: The state prediction device smoothes a state vector including a flow rate and a water level of a tsunami at each of a plurality of points set two-dimensionally in a region including a coverage area, by using flow velocity observed values of a sea surface in a plurality of cells extending in a plurality of range directions and a plurality of beam directions in the coverage area of a radar.

Abstract: A detection area determining unit (6) determines a detection area where there is a possibility that a tsunami occurs. A current velocity estimating unit (7) estimates, as a sea-surface velocity of current in the detection area, a value obtained by smoothing sea-surface velocity of currents corresponding to cells included in the detection area. A tsunami detecting unit (8) detects occurrence of the tsunami in the detection area, based on the sea-surface velocity of current estimated by the current velocity estimating unit (7).

Abstract: A radar device includes processing circuitry to select multiple combinations of one or more cells consecutively arranged, out of multiple cells included in an observation region, assume that an object of observation is present in each of the selected cell combinations, and set up each of objects of observation as a target candidate, and calculate the flow rate of a cell in which each target candidate is present, by using the flow velocity of the cell in which the target candidate is present, out of the calculated flow velocities and determine whether each target candidate has a possibility of being an object of observation on the basis of the flow rate are disposed, and specify a target candidate which has been determined continuously with respect to time to have a possibility of being an object of observation, and recognize the specified target candidate as an object of observation.

Abstract: A flood prediction system for predicting a flood depth of a flood prediction location on land that will be flooded by waves includes a prediction formula generator to select, based on maximum wave heights of the waves at observation positions on water and a flood depth of each land-based area that will be flooded by the waves, at least one of the observation positions in order to predict the flood depth of the flood prediction location within a land-based area and to generate a prediction formula for predicting the flood depth of the flood prediction location, and a flood depth predictor to acquire, from a sensor, a maximum wave height measurement value of the observation position selected by the prediction formula generator and to predict the flood depth of the flood prediction location by using the prediction formula.

Abstract: A detection area determining unit (6) determines a detection area where there is a possibility that a tsunami occurs. A current velocity estimating unit (7) estimates, as a sea-surface velocity of current in the detection area, a value obtained by smoothing sea-surface velocity of currents corresponding to cells included in the detection area. A tsunami detecting unit (8) detects occurrence of the tsunami in the detection area, based on the sea-surface velocity of current estimated by the current velocity estimating unit (7).

Abstract: A microwave irradiating and heating device including: a reaction furnace containing a sample material to be irradiated with a microwave passed through an opening and to be heated; a microwave irradiating source disposed outside the reaction furnace; a rotated quadric surface mirror reflecting microwave emitted from the microwave irradiating source toward the opening, and disposed above the reaction furnace; a lid for the opening, at least a portion of the lid made from dielectric to transmit microwave reflected on the rotated quadric surface mirror into the reaction furnace; wherein an angle of incidence of the microwave, reflected on the rotated quadric surface mirror and irradiated at the portion of the lid made from the dielectric, is at an angle causing a polarized wave of the microwave to pass through the portion.

Abstract: A microwave irradiating and heating device including: a reaction furnace containing a sample material to be irradiated with a microwave passed through an opening and to be heated; a microwave irradiating source disposed outside the reaction furnace; a rotated quadric surface mirror reflecting microwave emitted from the microwave irradiating source toward the opening, and disposed above the reaction furnace; a lid for the opening, at least a portion of the lid made from dielectric to transmit microwave reflected on the rotated quadric surface mirror into the reaction furnace; wherein an angle of incidence of the microwave, reflected on the rotated quadric surface mirror and irradiated at the portion of the lid made from the dielectric, is at an angle causing a polarized wave of the microwave to pass through the portion.