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  1. No Access

    Article

    2D-Periodic Over-Wave-Range Antenna Array of TEM Horns with a Feeder

    Electrodynamic simulation based on the finite-element method is used to study characteristics of a plane 2D-periodic antenna array consisting of 32 TEM horns with a feeder. For each of two power dividers in th...

    V. A. Kaloshin, N. T. Le in Journal of Communications Technology and Electronics (2020)

  2. No Access

    Chapter and Conference Paper

    Apply System Dynamic in Resolving the Dispute of Time Delay in Viet Nam Construction Project

    Disputes often occur in the construction industry and one of its main issues is the delay in project completion. Prolonging the process of solving the delay disputes deprive parties of the time, reputation, th...

    H. L. Pham, N. T. Le in ICSCEA 2019 (2020)

  3. No Access

    Article

    The Effect of Spin Center Parameters on the Photoactivity of Nanocrystalline Titanium Dioxide in the Visible Spectral Range

    Nanocrystalline TiO2 samples, obtained by sol–gel and supercritical fluid (SCF) methods, have been studied by optical spectroscopy and electron spin resonance. It is established that the main type of spin centers...

    E. A. Konstantinova, V. B. Zaitsev, A. A. Minnekhanov, N. T. Le… in Crystallography Reports (2020)

  4. No Access

    Article

    Analysis of Scanning Characteristics in the H plane of Ultrabroadband Cylindrical Antenna Arrays of Biconical Elements

    Finite-element method is used to construct electrodynamic models of cylindrical phased antenna arrays using bicones and fragments of bicones. Numerical experiments are used to study scanning characteristics of...

    V. A. Kaloshin, N. T. Le in Journal of Communications Technology and Electronics (2019)

  5. No Access

    Article

    Influence of Defects on Photoconductivity and Photocatalytic Activity of Nitrogen-Doped Titania

    Samples of nitrogen-doped titanium dioxide (anatase, 0.2 ≤ N ≤ 1.0 wt%) prepared by the sol–gel method were investigated using X-band electron paramagnetic resonance spectroscopy, photoconductivity, and photoc...

    A. A. Minnekhanov, N. T. Le, E. A. Konstantinova… in Applied Magnetic Resonance (2017)

  6. No Access

    Article

    Investigation of the photoelectronic properties of nanocrystalline carbon- and nitrogen-doped titanium dioxide

    This paper reports the results of the study of photoelectronic properties of nanocrystalline titanium dioxide doped with carbon and nitrogen. Photo-generated paramagnetic radicals were detected and identified ...

    E. A. Konstantinova, N. T. Le, P. K. Kashkarov… in Moscow University Physics Bulletin (2014)

  7. No Access

    Article

    The influence of light on the properties of paramagnetic centers in TiO2 nanocrystals doped with nitrogen

    Samples of nitrogen-doped nanocrystalline titanium dioxide were studied by electron-paramagnetic resonance technique. It was found that the do** of a material with an admixture of nitrogen leads to the appea...

    N. T. Le, S. A. Sokolov, E. A. Konstantinova… in Moscow University Physics Bulletin (2013)

  8. Article

    Open Access

    The etiologic role of human papillomavirus in penile cancers: a study in Vietnam

    We investigated the aetiologic role of human papillomavirus (HPV) in 120 penile squamous cell carcinomas (PSCCs) from Vietnam.

    H T T Do, C Koriyama, N A Khan, M Higashi, T Kato, N T Le… in British Journal of Cancer (2013)

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  9. No Access

    Article

    Regulating regulatory T cells

    Regulatory T cells (Tregs) are a specialized subpopulation of T cells that act to suppress activation of other immune cells and thereby maintain immune system homeostasis, self-tolerance as well as control exc...

    N T Le, N Chao in Bone Marrow Transplantation (2007)