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  • [发明专利]US19810271860 _ NEARY, MICHAEL P. 1981年06月09日
    This invention relates to a solar energy system wherein chemical A is converted into chemical B in the presence of a photo-sensitizer with the absorption of considerable heat, which heat can be redelivered at will by placing chemical B in contact with...
  • [发明专利]JP19810106264 _ TOKYO SHIBAURA DENKI KK 1981年07月09日
    PURPOSE:To provide a Francis type split runner having balancing holes in a cover plate for covering the space around a flange-coupled section, which is designed such that only compressive load is acted to the cover plate while reducing tension load, b...
  • [发明专利]JP19810000258 _ INST FRANCAIS DU PETROLE 1981年01月05日
    This process comprises the three successive following steps of: (a) injecting into a formation a solution of sodium or potassium hydroxide during a limited time interval to perform a chemical leaching treatment of the formation, (b) injecting a saline...
  • [发明专利]JP19810175619 _ TAKENAKA HARUNO 1981年11月04日
    PURPOSE:To culture yeast simultaneously with pumping-up power generation by circulating culturing liquid which is inoculated with yeast in order of an upper pond the upper part of a lower pond a shallow pond for separation of yeast the lower p...
  • 5.
    [发明专利]JP19810084371 _ HITACHI LTD 1981年06月03日
  • 6.
    [发明专利]JP19810000258 _ ANSUCHI* FURANSE DEYU PETOROORU 1981年01月05日
    This process comprises the three successive following steps of: (a) injecting into a formation a solution of sodium or potassium hydroxide during a limited time interval to perform a chemical leaching treatment of the formation, (b) injecting a saline...
  • 7.
    [发明专利]JP19810028497 _ KUNIO SUZUKI 1981年03月02日
  • [发明专利]JP19810196296 _ TAKENAKA HARUNO 1981年12月08日
    PURPOSE:To promote metabolism by a living body or extracted matter from a living body in a multi-purpose pumping-up power plant, by appending a functional free water pool for increasing or decreasing a gravity medium comprising water or an aqueous sol...
  • [发明专利]JP19810084371 _ HITACHI SEISAKUSHO KK 1981年06月03日
    PURPOSE:To obtain a cast steel member having characteristics equal to or more than that of a tempered and annealed member only by annealing after casting, in an electroslag casting method using steel as stock material, by forming a structure based on ...
  • [发明专利]GB19810000576 _ SUKUKI K 1981年01月09日
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