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  1. No Access

    Article

    Wet peroxide oxidation process catalyzed by Cu/Al2O3: phenol degradation and Cu2+ dissolution behavior

    Catalytic wet peroxide oxidation (CWPO) has become an important deep oxidation technology for organics removal in wastewater treatments. Supported Cu-based catalysts belong to an important type of CWPO catalys...

    Wumin Zhang, Huimin Zhuang, Yu Guo, Hua Chi… in Environmental Science and Pollution Resear… (2024)

  2. No Access

    Article

    Speciation of Aluminum in Urine

    A procedure has been developed for the speciation of aluminum in urine samples of four normal subjects fed required diet on two dates. Three fractions of aluminum species, i.e., labile monomeric ions, non-labile ...

    Jun Wu, Chao Yan Zhou, Ming Keong Wong, Hian Kee Lee, Hua Chi… in Analytical Sciences (1996)

  3. No Access

    Article

    Millimeter wave complex refractive index, complex dielectric permittivity and loss tangent of extra high purity and compensated silicon

    Single crystal high resistivity (11,000 ohm-cm) boron doped silicon was found to exhibit lowest absorption loss at room temperature (25 C) in the entire millimeter wave region. At 140 GHz it's loss tangent val...

    Mohamed Nurul Afsar, Hua Chi in International Journal of Infrared and Millimeter Waves (1994)

  4. No Access

    Article

    Window materials for high power gyrotron

    The room temperature application of sapphire as window material at higher frequencies is not feasible since its absorption coefficient increases almost linearly with increasing frequency in the millimeter wave...

    Mohammed Nurul Afsar, Hua Chi in International Journal of Infrared and Millimeter Waves (1994)

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    Chapter

    Immobilization of Glucose Oxidase in Poly(2,2′-bithiophene)

    An enzyme sensor for glucose fabricated by the electrochemical polymerization method is described. Electropolymerized films of 2,2’-bithiophene is used to immobilized glucose oxidase at platinum electrodes. Th...

    Hardy S. O. Chan, Siu-Choon Ng… in Frontiers of Polymers and Advanced Materia… (1994)

  6. No Access

    Article

    Measurement of the complex refractive index and complex dielectric permittivity of T.P.S. space shuttle tile materials at millimeter wavelengths

    Complex Refractive Index and Dielectric Permittivity studies of presently used space shuttle tile materials at millimeter wavelength region reveal these tiles to exhibit similar absorption characteristics as f...

    Mohammed Nurul Afsar, Hua Chi, **aohui Li in International Journal of Infrared and Mill… (1990)