Results 31 to 40 of about 14,978 (220)
Research on Modeling Weighted Average Temperature Based on the Machine Learning Algorithms
Atmosphere, 2023 In response to the nonlinear fitting difficulty of the traditional weighted average temperature (Tm) modeling, this paper proposed four machine learning (ML)-based Tm models.
Kai Li +5 more
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A review of satellite positioning systems for civil engineering [PDF]
, 2015 This paper informs and updates civil engineers of the status and advances of global navigation satellite systems, and how this will affect the profession in the near future. An overview of the various global and regional systems is given. Real data are
Brown, C, Roberts, GW, Tang, X
core +2 more sources
Deep Learning Based Detector YOLOv5 for Identifying Insect Pests
Applied Sciences, 2022 Insect pests are a major element influencing agricultural production. According to the Food and Agriculture Organization (FAO), an estimated 20–40% of pest damage occurs each year, which reduces global production and becomes a major challenge to crop ...
Iftikhar Ahmad +7 more
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China Offshore Data Translation Net and Information Integration and Release Platform [PDF]
, 2012 China offshore marine observation station of Chinese academy of sciences consists of dozens of marine observation buoy system, which are spread in China's offshore to obtain the long-term continuous oceanographic elements.
Yonghua, Chen
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Research Article. Improved Dual Frequency PPP Model Using GPS and BeiDou Observations
Journal of Geodetic Science, 2017 This paper introduces a new dual-frequency precise point positioning (PPP) model, which combines GPS and BeiDou observations. Combining GPS and BeiDou observations in a PPP model offers more visible satellites to the user, which is expected to enhance ...
Afifi A., El-Rabbany A.
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Medium Earth Orbit dynamical survey and its use in passive debris removal
, 2019 The Medium Earth Orbit (MEO) region hosts satellites for navigation, communication, and geodetic/space environmental science, among which are the Global Navigation Satellites Systems (GNSS).
Rosengren, Aaron J. +3 more
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Geodesy and Geodynamics, 2023 The space constellation of the BeiDou navigation satellite system (BDS) is a hybrid constellation containing medium earth orbit (MEO) satellites, geostationary earth orbit (GEO) satellites, and inclined geosynchronous orbit (IGSO) satellites.
Jingjing Wang, Chao Zhou, Zhixuan Sun
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Precise orbit determination and point positioning using GPS, Glonass, Galileo and BeiDou
Journal of Geodetic Science, 2014 State of the art Precise Point Positioning (PPP) is currently based on dual-frequency processing of GPS and Glonass navigation systems. The International GNSS Service (IGS) is routinely providing the most accurate orbit and clock products for these ...
Tegedor J., Øvstedal O., Vigen E.
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Angewandte Chemie, Volume 137, Issue 48, November 24, 2025.Here, we introduce a design strategy for activated photosensitizers (PSs) wherein photoinduced electron transfer (PeT) is combined with a process of self‐assembly that can be regulated by endogenous H2S—a tumor‐associated biomarker to favor Type‐I photochemical reactions.
Huiyu Niu +12 more
wiley +2 more sources
ISPRS International Journal of Geo-Information, 2016 By August 2016, 5 new-generation BeiDou satellites (BeiDou-3) have successfully been launched. The observations of a very limited number of 9 International GNSS (Global Navigation Satellite System) Monitoring and Assessment Service (iGMAS) stations and ...
Bingfeng Tan +4 more
doaj +1 more source