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  1. No Access

    Article

    Regulation of phytohormons on the regeneration of shoot-tips of Antirrhinum majus into plantlet in vitro

    Tissue culture ofAntirrhium majus was experimented by using the tip of shoots as the explants, and comparing the effects of NAA, IAA and 2, 4-D on the formation of adventitious buds. The results indicated that th...

    Zhang **aofang, **n Yafen, Liu Hongwei in Journal of Northeast Forestry University (1992)

  2. No Access

    Article

    Perturbation of rarefaction waves

    Consider a pair of genuinely nonlinear strictly hyperbolic conservation lawsU t +F(U) x ...

    Lin Longwei, **e Feipeng in Acta Mathematica Sinica (1992)

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    Article

    Utilization of total solubility parameter for calculating retention indices of alkylbenzenes

    A new three-parameter equation is obtained that relates gas liquid chromatographic retention indices for nonpolar and weakly polar substances such as hydrocarbons to their total solubility parameters, molar vo...

    Zhang Hongwei, Hu Zhide in Chromatographia (1992)

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    Article

    A family of exact solutions for theSU(5) coupled Einstein-Yang-Mills-Higgs system

    Gravity coupled to theSU(5) Grand Unified model is considered. A family of spherically symmetric dyon solutions with magnetic charge ±1/e and the space-time metric taking the Reissner-Nordstrom form is obtained. ...

    Hongwei Yu, Jiliang **g, Yongjiu Wang in Il Nuovo Cimento B (1971-1996) (1992)

  5. No Access

    Article

    A rigorous cad of millimeter wave bandpass filter with all-metal insert in waveguide

    In this paper, a bandpass filter with all-metal insert, an inductive strip in the E-plane of a waveguide is analyzed by a prototype filter and the scattering matrix of the strip is calculated by electromagneti...

    Hongwei Liu in International Journal of Infrared and Millimeter Waves (1992)

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    Article

    A family of exact axisymmetric solutions for theSU(5) coupled Einstein-Yang-Mills-Higgs system

    Gravity coupled to theSU(5) grand unified model is considered. A family of axisymmetric dyon solutions with magnetic charge 1/e and the space-time metric taking the Kerr-Newman form is obtained. The classical pro...

    Hongwei Yu, Jiliang **g in Il Nuovo Cimento B (1971-1996) (1992)

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    Article

    A determination of the structure of a phase near R in Al-Li-Cu-Mg-Zr alloy

    Wang Shuncai, Li Chunzhi, Wu Yilei, Li Yongwei in Journal of Materials Science Letters (1993)

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    Article

    Preparation and optical properties of phase-change VO2 thin films

    In this work, VO2 thin films were prepared on three kinds of substrates by the sol-gel dipcoating method followed by heat treatment under vacuum. These thin films were analysed by x-ray diffraction (XRD) and X-ra...

    Songwei Lu, Lisong Hou, Fuxi Gan in Journal of Materials Science (1993)

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    Article

    Rotating colored black hole inSU(5) GUT

    Gravity coupled to theSU(5) GUT is considered. A family of stationary axisymmetric solutions is obtained, which represents a rotating black hole with a QCD color hair as well as electromagnetic hairs.

    Hongwei Yu in International Journal of Theoretical Physics (1993)

  10. No Access

    Article

    A five-channel grating spectrometer for millimeter waves

    A five-channel grating spectrometer for use in millimeter wave band (25∼100GHz) is described with its design theory of optical path, and measured results of insertion loss and resolving power.

    Hongwei Liu, **angdong Liu, KeXue Yuan in International Journal of Infrared and Mill… (1993)

  11. No Access

    Article

    Some preliminary results on pilot study of global change in China

    On the basis of existing data and research results the changes of life supporting environment in China in the history are briefly described. The differences between regional climate variations and climate jump...

    Chen Panqin, Yan Zhongwei in Advances in Atmospheric Sciences (1993)

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    Article

    A five-channel grating spectrometer for millimeter-waves

    A five-channel grating spectrometer for use in millimeter wave band (25∼100GHz) is described with its design theory of optical path, and measured results of insertion loss and resolving power.

    Hongwei Liu, **angdong Liu, KeXue Yuan in International Journal of Infrared and Mill… (1993)

  13. No Access

    Article

    Synthesis and characterization of a family of wholly aromatic thermotropic liquid crystalline copolyesters

    A family of melt processable, wholly-aromatic thermotropic liquid crystal copolyesters are prepared, which are characterized by Fourier transform infrared spectroscopy, differential scanning calorimetry and po...

    Zhouming Zhao, Xuqin Wu, Yongwei Lin, John A. McLean in Polymer Bulletin (1993)

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    Article

    Experimental study of intratumor injection with gelatin microspheres containing131I and mitomycin C in implanted hepatoma-22 in mice

    The experiment of intratumor injection with gelatin microsphere containing131I and mitomycin C (131I-MMC-GM) into implanted hepatoma- 22 in mice is reported. Seventy Bal B/C mice were grouped into A, B, C, and D....

    **aoli Chen, Dachang Zhong, Lin Li, Changhong Yan in Chinese Journal of Cancer Research (1993)

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    Article

    The synthesis and identification of new heavy neutron-rich nuclide237Th

    The unreported heavy neutron-rich nuclide237Th has been identified for the first time. Sources of237Th prepared by 14-MeV neutron irradiation of uranium followed by radiochemical separation have been studied. The...

    Shuanggui Yuan, Tianmei Zhang, Shuwei Xu in Zeitschrift für Physik A Hadrons and Nuclei (1993)

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    Article

    Effects of Nitrogen on Formation and Properties of Diamondlike Films Synthesized by Dual Ion Beam Deposition

    Diamondlike carbon-nitrogen films on silicon (111) wafer and tungsten carbide plates have been prepared by using dual ion beam sputtering deposition and simultaneous bombardment by N+ with energies of 100–800 eV ...

    **aoming He, Hongwei Song, Wenzhi Li, Fuzhai Cui in MRS Online Proceedings Library (1993)

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    Chapter and Conference Paper

    TPS: An interactive and automatic tool for proving theorems of type theory

    This is a demonstration of TPS, a theorem proving system for classical type theory (Church's typed λ-calculus). TPS can be used interactively or automatically, or in a combination of these modes. An important ...

    Peter B. Andrews, Matthew Bishop in Higher Order Logic Theorem Proving and Its… (1994)

  18. No Access

    Article

    The near tip stress and strain fields in cracked single crystals

    The numerical analyses of stationary mathematically sharp Mode I crack in FCC and BCC crystals with elastic-ideally plastic (EIP) and fast hardening saturation (FHS) law are carried out in the present paper. F...

    Zhang Yongwei, Wang Tzuchiang in Acta Mechanica Sinica (1994)

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    Article

    Monopole and dyon solutions for theSU(5) coupled Einstein-Yang-Mills-Higgs system

    Gravity coupled to theSU(5) grand unified model is considered. A family of static spherically symmetric monopole and dyon solutions with magnetic charge ±3/2e and the space-time metric taking the Reissner-Nordstr...

    Jiliang **g, Hongwei Yu, Yongjiu Wang in Il Nuovo Cimento B (1971-1996) (1994)

  20. No Access

    Article

    Self-Q-switching Nd: YAG laser operation using stimulated thermal Rayleigh scattering

    We have developed a self-Q-switching phase-conjugated laser resonator in which a medium cell containing a strongly absorbing liquid is used to replace a cavity mirror and a Q-switch. A stable laser output is obta...

    Yang **gguo, Jiang Hongwei in Optical and Quantum Electronics (1994)

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