Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Zhongchen Guo"'
Publikováno v:
Applied Sciences, Vol 13, Iss 22, p 12167 (2023)
In the evolving landscape of device-free localization techniques, Wi-Fi channel state information (CSI) emerges as a pivotal tool for environmental sensing. This study introduces a novel fingerprint localization algorithm. It employs an improved Hybr
Externí odkaz:
https://doaj.org/article/05c3e82e8eb04525a53bdebed495745a
Publikováno v:
Sensors, Vol 23, Iss 13, p 6151 (2023)
Global Navigation Satellite System (GNSS) observations are subject to various errors during their propagation process. A reasonable correction of these errors can improve the positioning, navigation, and timing (PNT) service capability. The impact of
Externí odkaz:
https://doaj.org/article/1ba1cc618a3447d681a071c5e040feca
Publikováno v:
Sensors; Volume 23; Issue 13; Pages: 6151
Global Navigation Satellite System (GNSS) observations are subject to various errors during their propagation process. A reasonable correction of these errors can improve the positioning, navigation, and timing (PNT) service capability. The impact of
Publikováno v:
Mathematical Problems in Engineering, Vol 2021 (2021)
Precise point positioning (PPP) is used in many fields. However, pseudorange multipath delay is an important error that restricts its accuracy. Pseudorange multipath delay can be considered as the combination of effective information and observation
Publikováno v:
Measurement Science and Technology. 34:025008
Due to the traditional fixed model used in precise point positioning (PPP) solutions, multi-frequency and multi-Global Satellite Navigation System (GNSS) observations have not been fully introduced into positioning services. In consideration of the B
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Publikováno v:
Sustainability; Volume 14; Issue 14; Pages: 8644
The linear combination of multi-frequency carrier-phase and pseudorange observations can form the combined observations with special properties. The type and number of combined frequencies will directly affect the characteristics of the combined obse
Publikováno v:
Plant cell reports. 17(6-7)
Mature zygotic embryos from three seed sources of loblolly pine were cultured on callus induction medium containing 10 mg l(-1) alpha-naphthaleneacetic acid, 4 mg l(-1) benzyladenine (BA), 400 mg l(-1) casein hydrolysate, and 400 mg l(-1) glutamine f
Publikováno v:
In Vitro Cellular & Developmental Biology - Plant. 40:412-415
A protocol for large-scale propagation of Phragmites communis Trin. by adventitious bud formation and plant regeneration was established. Adventitious buds were induced through either the indirect pathway or the direct pathway from stem explants of P
Publikováno v:
In Vitro Cellular & Developmental Biology - Plant. 37:558-563
Mature zygotic embryos of eight (open-pollinated) families of loblolly pine (Pinus taeda L.) were cultured on eight different basal salt formulations, each supplemented with 36.2 muM 2,4-dichlorophenoxyacetic acid, 17.8 muM 6-benzyladenine, 18.6 muM