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Wyszukujesz frazę "Dong, D." wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
New method of CT saturation detection
Autorzy:
Bąk, D.
Dong, X.
Rebizant, W.
Powiązania:
https://bibliotekanauki.pl/articles/410533.pdf
Data publikacji:
2012
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
CT saturation detection
protective relaying
transient analysis
Opis:
A new method for detection of CT saturation is presented in this paper. The presented algorithm applies a new, innovative methodology mapping first order derivative of phase current signals into coordinates of a 3D vector. The comparison of proposed algorithm with standard one based on secondary current signal's second derivative is conducted and some of simulation results are presented to show the proposed algorithm effectiveness.
Źródło:
Present Problems of Power System Control; 2012, 2; 65-72
2084-2201
Pojawia się w:
Present Problems of Power System Control
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ground penetrating radar for underground sensing in agriculture: a review
Autorzy:
Liu, X.
Dong, X.
Leskovar, D.I.
Powiązania:
https://bibliotekanauki.pl/articles/26587.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Opis:
Belowground properties strongly affect agricultural productivity. Traditional methods for quantifying below- ground properties are destructive, labor-intensive and point-based. Ground penetrating radar can provide non-invasive, areal, and repeatable underground measurements. This article reviews the application of ground penetrating radar for soil and root measurements and discusses potential approaches to overcome challenges facing ground penetrating radar-based sensing in agriculture, especially for soil physical characteristics and crop root measurements. Though advanced data-analysis has been developed for ground penetrating radar-based sensing of soil moisture and soil clay content in civil engineering and geosciences, it has not been used widely in agricultural research. Also, past studies using ground penetrating radar in root research have been focused mainly on coarse root measurement. Currently, it is difficult to measure individual crop roots directly using ground penetrating radar, but it is possible to sense root cohorts within a soil volume grid as a functional constituent modifying bulk soil dielectric permittivity. Alternatively, ground penetrating radar-based sensing of soil water content, soil nutrition and texture can be utilized to inversely estimate root development by coupling soil water flow modeling with the seasonality of plant root growth patterns. Further benefits of ground penetrating radar applications in agriculture rely on the knowledge, discovery, and integration among differing disciplines adapted to research in agricultural management.
Źródło:
International Agrophysics; 2016, 30, 4
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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