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  1. Article

    Open Access

    Application of a modified tetra-primer ARMS–PCR assay for rapid Panax species identity authentication in ginseng products

    Panax ginseng products can be adulterated with materials from other Panax species. The purpose of this study is to provide a rapid P. ginseng authentication method for simultaneous identification of P. ginseng an...

    Zhengxiu Yang, Yat Tung Lo, Zheng Quan, Junchen He, Yanjun Chen… in Scientific Reports (2023)

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  2. No Access

    Article

    A preliminary simulation study of influence of backsplash on the plastic scintillator detector design in HERD experiment

    The plastic scintillator detector (PSD) is one of the detectors in the high energy cosmic radiation detection (HERD) facility, which is designed for gamma-ray detection and a redundant charge measurement. Back...

    Peng Hu, Zhi-gang Wang, Fabio Gargano… in Radiation Detection Technology and Methods (2021)

  3. No Access

    Article

    Study of linearity of LYSO crystal for the high energy cosmic radiation detection (HERD) facility

    The high energy cosmic-radiation detection (HERD) facility is a space mission designed for detecting cosmic ray (CR) electrons, $$\gam...

    Zheng Quan, Zhigang Wang, Ming Xu… in Radiation Detection Technology and Methods (2017)

  4. No Access

    Article

    All-solid-state dual end pumped YVO4:Nd/LBO blue laser with 21.8 W output power at 457 nm

    It is reported the efficient compact deep-blue laser at 457 nm generation by intracavity frequency doubling of a continuous wave (CW) laser operation of a diode-pumped YVO4:Nd laser on the 4 F ...

    Zhao Ling, Yao Yi, Zhao Yang, Zheng Quan in Optics and Spectroscopy (2014)

  5. No Access

    Article

    Perturbations and approximations of integrated semigroups

    The purpose of this paper is to establish some basic results about perturbations and approximation of integrated semigroups.

    Zheng Quan in Acta Mathematica Sinica (1993)

  6. No Access

    Article

    The embedded theorem for family of quasi metric spaces in Menger space and its application

    In this paper the notion of embedding for family of quasi metric spaces in Menger spaces is introduced and its properties are investigated. A common fixed point theorem for sequence of continuous map**s in M.....

    Liu Zuo-shu, Zheng Quan in Applied Mathematics and Mechanics (1990)

  7. No Access

    Article

    Optimality conditions for global optimization (II)

    In this paper we continue to investigate the global optimality conditions for constrained problems by the theory of measure and integration.

    Zheng Quan in Acta Mathematicae Applicatae Sinica (1985)

  8. No Access

    Article

    Optimality conditions for global optimization (I)

    With the help of the theory of measure and integration several global optimality conditions, which are sufficient and necessary, are given for minimizing a continuous function over a topological space.

    Zheng Quan in Acta Mathematicae Applicatae Sinica (1985)