Výsledky vyhledávání

Akademický článek

A Study on Economic Value of Grassland Ecosystem Services

Autor: Huang Jikun, Hou Lingling, Kang Nannan, Liu Huifang, Lyu Xinxin, Zhang Yan, Qiu Huanguang, Gong Yazhen, Nan Zhibiao

Publikováno v: 中国工程科学, Vol 25, Iss 1, Pp 198-206 (2023)

Grassland is the second largest terrestrial ecosystem in China and provides a large variety of ecosystem services to human beings. However, its economic value and the associated realization mechanisms still require in-depth research. Compiling the cu

Externí odkaz: https://doaj.org/article/f953e820c34e40979c8c4baeb26755f1

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Akademický článek

Meromorphic solutions of certain nonlinear difference equations

Autor: Liu Huifang, Mao Zhiqiang, Zheng Dan

Publikováno v: Open Mathematics, Vol 18, Iss 1, Pp 1292-1301 (2020)

This paper focuses on finite-order meromorphic solutions of nonlinear difference equation fn(z)+q(z)eQ(z)Δcf(z)=p(z){f}^{n}(z)+q(z){e}^{Q(z)}{\text{Δ}}_{c}f(z)=p(z), where p,q,Qp,q,Q are polynomials, n≥2n\ge 2 is an integer, and Δcf{\text{Δ}}_{

Externí odkaz: https://doaj.org/article/cd1c21d579944df6ab45f5a1c7b2ea83

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Akademický článek

Software realization scheme for hot standby of coal mine safety monitoring and control system

Autor: HE Lei, LIU Huifang, LI Xiao

Publikováno v: Gong-kuang zidonghua, Vol 41, Iss 9, Pp 78-80 (2015)

For hot standby problem of coal mine safety monitoring and control system, a software realization scheme was proposed, namely using trigger of SQL Server 2000 database to intercept updated data in the database, using hot standby software to realize d

Externí odkaz: https://doaj.org/article/6804f2831591482fa812d5ee18637cd0

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