INVESTIGATION METHOD FOR AIR POLLUTION BY RADIO ACTIVE CARBON

    公开(公告)号:JPH10319007A

    公开(公告)日:1998-12-04

    申请号:JP16938397

    申请日:1997-05-21

    Abstract: PROBLEM TO BE SOLVED: To investigate an air pollution state due to an artificial exhaust gas by a radio active carbon density measurement in a plant even at a site where an air pollution substance measuring instrument cannot be installed. SOLUTION: A radio action carbon density in a plant is constant anywhere on the earth unless a special reason has been given. However, a gas exhaust by combustion of a fossil fuel does not include ratio active carbon; therefore, the radio active carbon density in the plant grown in an area containing much exhaust gas of the fossil fuel decreases with an increase in a quantity of exhaust gas. Hence, by measuring the radio active carbon density in the plant, the air pollution degree due to the an artificial exhaust gas in that bleeding area can be determined.

    GAS HEATING DEVICE
    7.
    发明专利

    公开(公告)号:CA2500286A1

    公开(公告)日:2005-09-22

    申请号:CA2500286

    申请日:2005-03-10

    Inventor: YAMADA OSAMU

    Abstract: The present invention provides a device for efficiently heating gas. Specifically, the invention provides a gas heating device for heating a gas by bringing the gas into contact with a heating element, wherein: (1) a plurality of heating elements are provided in a container having at least one gas inlet and at least one gas outlet; (2) an induction coil for electromagnetic induction heating is provided on the periphery of the container; and (3) (a) the heating elements are columnar in shape, and (b) each columnar heating element is provided such that the longitudinal direction of the columnar heating element is parallel to the longitudinal direction of the container.

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