Masataka Naitoh

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This work describes the radiometric calibration of the short-wave infrared (SWIR) bands of two instruments aboard the Greenhouse gases Observing SATellite (GOSAT), the Thermal And Near infrared Sensor for carbon Observations Fourier Transform Spectrometer (TANSO-FTS) and the Cloud and Aerosol Imager (TANSO-CAI). Four vicarious calibration campaigns (VCCs)(More)
We tested the optical performance at cryogenic temperatures of an 800 mm diameter lightweight mirror, consisting of carbon-fiber reinforced silicon carbide and with a mass of 11.2 kg. The ceramic composite of the mirror was HB-Cesic, developed by ECM, Germany, and Mitsubishi Electric Corporation, Japan. The test was carried out while the mirror was mounted,(More)
Based on ab initio total energy calculation, we show that a dynamic ad-dimer twisting assisted (DATA) process plays a crucial role in facilitating a novel structural reconstruction involving surface and subsurface atoms on Si(001). It leads to self-assembly of long nanowires of group-V elements (Bi, Sb) in the trenches of surface dimer vacancy lines (DVLs)(More)
The paper presents the results of Phase 1 of OECD SERENA programme on fuel-coolant interaction under the aspect of the implications uncertainties on FCI phenomena may have on the predictability of steam explosion induced loads. SERENA, in its Phase 1, made a status of the predictive capabilities of the FCI codes through comparative calculations of most(More)
As well known, wildfire emits carbon into atmosphere for 1.7 to 4.1GtC/yr in entire earth (IPCC, Mack et al. 1996, Andreae et al. 2001). This is not negligible amount, corresponding to one quarter to one half of anthropogenic greenhouse gas emission. Thus, accurate wild fire detection is important in estimation of the impact of wild fire and in disaster(More)
The compact infrared camera (CIRC) is a technology demonstration instrument that Japanese Aerospace Exploration Agency (JAXA) is developing by using commercial-off-the-shelf (COTS) technology in recent years. CIRC is an infrared camera equipped with an uncooled infrared array detector (microbolometer). CIRC will be utilized for various technology(More)
Radiography is a fundamental method of examination in clinical dentistry. Rotational panoramic radiography provides comprehensive information on the maxilla and mandible, and is thus a very valuable procedure for dental practitioners. It is impossible for the image layer to be altered to perfectly suit each individual patient, so the closest corresponding(More)
The compact infrared camera (CIRC) is an uncooled infrared array detector (microbolometer) with the primary goal of detecting wildfires, which are major and chronic disasters affecting numerous countries in the Asia-Pacific region. Eliminating the cooling system reduces the size, cost, and electrical power of the sensor. Two CIRCs have been developed, which(More)
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