Search Results1-20 of  109

  • Okawa Hirokazu ID: 9000018514627

    Articles in CiNii:1

    • Effect of ultrasound irradiation on arsenic adsorption from aqueous solution into iron compound (Special issue: Ultrasonic electronics) (2011)
  • Okawa Hirokazu ID: 9000019001329

    Articles in CiNii:1

    • Investigation of Thermal Conductivity and Heat Characteristics of Oil Sands Using Ultrasound Irradiation for Shortening the Preheating Time (Special Issue : Ultrasonic Electronics) (2012)
  • Okawa Hirokazu ID: 9000019001372

    Articles in CiNii:1

    • Influence of Air Humidity and Water Particles on Dust Control Using Ultrasonic Atomization (Special Issue : Ultrasonic Electronics) (2012)
  • Okawa Hirokazu ID: 9000024977109

    Articles in CiNii:1

    • Removal of Arsenic from Sulfuric Acid Solutions Using Jarosite and Sonication (Special Issue : Ultrasonic Electronics) (2012)
  • Okawa Hirokazu ID: 9000025032367

    Articles in CiNii:1

    • Effects of different ultrasound irradiation frequencies and water temperatures on extraction rate of bitumen from oil sand (Special issue: Ultrasonic electronics) (2010)
  • Okawa Hirokazu ID: 9000025032897

    Articles in CiNii:1

    • The sterilization of suspensions contaminated with microorganisms using ultrasound irradiation (Special issue: Ultrasonic electronics) (2010)
  • Okawa Hirokazu ID: 9000025097839

    Articles in CiNii:1

    • Recovery of bitumen from oil sand by sonication in aqueous hydrogen peroxide (Special issue: Ultrasonic electronics) (2011)
  • Okawa Hirokazu ID: 9000025098003

    Articles in CiNii:1

    • Sonication enables effective iron leaching from green tuff at low temperature (Special issue: Ultrasonic electronics) (2011)
  • OKAWA Hirokazu ID: 9000020889598

    Kobe Branch Office, Himeji Livestock Hygiene Service Center (2011 from CiNii)

    Articles in CiNii:1

    • Logistical Study in Hyogo Prefecture on Disposal of Poultry Carcasses Infected with Highly Pathogenic Avian Influenza Virus to Prevent Infection Spreading to Other Flocks (2011)
  • OKAWA Hirokazu ID: 9000020895918

    Faculty of Engineering and Resource Science, Akita University, (2008 from CiNii)

    Articles in CiNii:1

    • A Method of Underground Imaging Using Value of Elliptic Orbit Brightness for Detecting Underground Piping (2008)
  • OKAWA Hirokazu ID: 9000238224505

    Department of Earth Science and Technology Graduate School of Engineering and Resource Science, Akita University (2012 from CiNii)

    Articles in CiNii:1

    • Effects of different ultrasound irradiation frequencies on the recovery rate of bitumen from oil sand (2012)
  • OKAWA Hirokazu ID: 9000261035777

    Graduate School of Creative Science and Engineering, Waseda University (2013 from CiNii)

    Articles in CiNii:1

    • Rapid Determination of Anionic Surfactants in Atmospheric Aerosol in an Urban Area Using an Improved Methylene Blue Method (2013)
  • OKAWA Hirokazu ID: 9000307258417

    Department of Earth Science and Technology, Faculty of Engineering and Resource Science, Akita University (2015 from CiNii)

    Articles in CiNii:1

    • Improvement of High Rate Performances for Ti-Doped Li<sub>3</sub>V<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub> Cathode Materials (2015)
  • OKAWA Hirokazu ID: 9000314081476

    Graduate School of Engineering and Resource Science, Akita University (2015 from CiNii)

    Articles in CiNii:1

    • 1-4-3 Oxidative desulfurization of coal (2015)
  • OKAWA Hirokazu ID: 9000317126282

    Graduate School of Engineering and Resource Science, Akita University (2015 from CiNii)

    Articles in CiNii:1

    • No.31 Behavior of Sulfur in Liquid Phase Oxidation of Coal (2015)
  • OKAWA Hirokazu ID: 9000317126286

    Faculty of Engineering and Resource Science, Akita University (2015 from CiNii)

    Articles in CiNii:1

    • No.32 Desulfurization of Coal Soluble Using Ionic Liquid (2015)
  • OKAWA Hirokazu ID: 9000345346934

    Faculty of Enginering and Resource Science, Akita University (2016 from CiNii)

    Articles in CiNii:1

    • No.1-25 Recovery of Precious Metals from Secondary Resource by Using Coals (2016)
  • OKAWA Hirokazu ID: 9000345346968

    Faculty of Engineering and Resource Science, Akita University (2016 from CiNii)

    Articles in CiNii:1

    • No.1-18 Multi-step Desulfurization of Coal Soluble Using Ionic Liquid (2016)
  • OKAWA Hirokazu ID: 9000389440633

    Faculty of Engineering Science, Akita University (2018 from CiNii)

    Articles in CiNii:1

    • Behavior of Sulfur in Liquid Phase Oxidation of Coal (2018)
  • OKAWA Hirokazu ID: 9000392143587

    Faculty of Enginering Science, AKITA University (2017 from CiNii)

    Articles in CiNii:1

    • No.2-15 Arsenic Removal from Denitration Catalyst by Carbon Reduction (2017)
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