Showing 1,561 - 1,580 results of 2,648 for search '"satellites"', query time: 0.06s Refine Results
  1. 1561

    Y a-t-il un guide dans la rédaction ? by Daniel Elmiger

    Published 2021-07-01
    “…In guidelines for non-sexist / inclusive language, instructions are given for a more equitable use of nouns (and satellite forms) referring to humans. Such guides exist for many languages, including for French since the 1980s. …”
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    Article
  2. 1562

    Prediction and Mapping of Soil Total Nitrogen Using GF-5 Image Based on Machine Learning Optimization Modeling by LIU Liqi, WEI Guangyuan, ZHOU Ping

    Published 2024-09-01
    “…[Conclusions]This study demonstrates the clear feasibility of using GF-5 satellite hyperspectral remote sensing data and machine learning algorithm for large-scale quantitative detection and visualization analysis of soil TN content. …”
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    Article
  3. 1563

    Agricultural Drought Assessment using Remote Sensing Data (Case study: Tuyserkan County) by Maedeh Malmir, Kamran Shayesteh, Iman Pazhouhan

    Published 2025-09-01
    “…The satellite data used in this study are from MODIS imagery. …”
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    Article
  4. 1564

    Multi-station positioning accuracy and enhancement method for 5G by Feilong ZHAO, Lili WANG

    Published 2023-09-01
    “…RAT-dependent is a satellite independent positioning technology of 5G.3GPP gives the Cramer-Rao lower bound (CRLB) of the positioning accuracy under the ideal condition of a single station and the simulation positioning accuracy of multi-station under different network configurations.Based on the actual network conditions, the analysis framework, accuracy range of multi-station positioning accuracy and the corresponding improvement method were proposed.The experimental results show that the RAT-dependent positioning accuracy is closely related to network technologies, and the positioning accuracy of the optimized scheme can be improved by 20%~30% compared with the non-optimized scheme.…”
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    Article
  5. 1565

    EclipseNB: A Network of Low‐Cost GNSS Receivers to Study the Ionosphere by A. Kashcheyev, B. Nava, C. Watson, P. T. Jayachandran, R. B. Langley

    Published 2025-01-01
    “…Abstract This work aims to demonstrate that dense networks of low‐cost dual‐frequency global navigation satellite systems (GNSS) receivers can be used to retrieve ionospheric electron content with almost the same level of accuracy as scientific‐grade GNSS receivers. …”
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    Article
  6. 1566

    Amateurisme cartographique et géographique à l’heure du web 2.0 by Henry Bakis, Jérémie Valentin

    Published 2010-08-01
    “…The result appears as a geographical production, out of areas which, until recently, were the originators and obliged users: Universities, research organizations, professional geographers, states, NGOs, military, maps and satellite imagery producers... This article focuses on these new uses and tries to see the specificity and issues. …”
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    Article
  7. 1567

    Wireless sensors and network-based detection of wildfires by Aziza Algarni

    Published 2022-12-01
    “…There are other techniques used to detect fire in forests like cameras, satellite system, manual monitoring but they take time to detect the fire whereas Forest fire detection system detects the fire within seconds and triggers the alarms. …”
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    Article
  8. 1568

    CARTOGRAFÍA DE PAISAJES: UNA HERRAMIENTA PARA EL INVENTARIO Y LA JERARQUIZACIÓN DE LOS RECURSOS TURÍSTICOS EN EL EXTREMO AUSTRAL DE LA PATAGONIA by Elizabeth Mazzoni

    Published 2015-12-01
    “…Each unit was digitized on screen on Landsat ETM+ satellite image of the area, which has a spatial resolution appropriate to the worksheet scale 1: 250,000. …”
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    Article
  9. 1569

    Scaled RTLS BRDF model extended to high zenith angles by Alexei Lyapustin, Yujie Wang, Sergey Korkin, Crystal Schaaf, Weile Wang, Zhuosen Wang

    Published 2025-01-01
    “…This becomes a limiting factor for the processing of geostationary satellite data covering the full range of solar and view zenith angles. …”
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    Article
  10. 1570

    Experimental Investigation on the Feasibility of Using Spring-Loaded Pogo Pin as a Holding and Release Mechanism for CubeSat’s Deployable Solar Panels by Tae-Yong Park, Su-Hyeon Kim, Hongrae Kim, Hyun-Ung Oh

    Published 2018-01-01
    “…A spring-loaded pogo pin as a holding and release mechanism of solar panels for cube satellite applications is proposed which functions as an electrical interface, a separation spring, and a status switch. …”
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    Article
  11. 1571

    Status, Breeding Ecology and Conservation of the Imperial Eagle in Austria by Matthias Schmidt, Johannes A. Hohenegger

    Published 2023-10-01
    “…Apart from the population monitoring, the programmes comprised measures to prevent illegal persecution and the disturbance of breeding sites, the satellite tagging of young IEs and the collection of all mortality data available.…”
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  12. 1572

    Productivity of coniferous forests evaluated by remote sensing and field-based models by A Kusbach jun, J Krejza, L Homolová, M Fischer, R Janoutová, P Horáček

    Published 2025-01-01
    “…This study investigates spruce forest productivity using in-situ field observations (DendroNetwork) and satellite remote sensing (RS) data in the Czech Republic during the past two decades. …”
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  13. 1573

    Measurements and Modeling of the Responses of VLF Transmitter Signals to X‐Class Solar Flares at the Great Wall Station in Antarctica by Wei Xu, Xudong Gu, Binbin Ni, Shiwei Wang, Zhe Yang, Wen Cheng, Ze‐Jun Hu, Fang He, Bin Li, Xiang‐Cai Chen, Jian‐Jun Liu, Hong‐Qiao Hu

    Published 2023-04-01
    “…Abstract Solar flares can severely disturb the Earth's ionosphere, leading to changes of atmospheric chemistry and degradation of Global Navigation Satellite System (GNSS) signals. The key to better assess these effects is to more accurately quantify the electron density enhancements induced by solar flares, which is still uncertain. …”
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    Article
  14. 1574

    The Solar and Geomagnetic Storms in 2024 May: A Flash Data Report by Hisashi Hayakawa, Yusuke Ebihara, Alexander Mishev, Sergey Koldobskiy, Kanya Kusano, Sabrina Bechet, Seiji Yashiro, Kazumasa Iwai, Atsuki Shinbori, Kalevi Mursula, Fusa Miyake, Daikou Shiota, Marcos V. D. Silveira, Robert Stuart, Denny M. Oliveira, Sachiko Akiyama, Kouji Ohnishi, Vincent Ledvina, Yoshizumi Miyoshi

    Published 2025-01-01
    “…The shock arrival at 17:05 UT on May 10 significantly compressed the magnetosphere down to ≈5.04 R _E and triggered a deep Forbush Decrease. GOES satellite data and ground-based neutron monitors confirmed a ground-level enhancement from 2 UT to 10 UT on 2024 May 11. …”
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  15. 1575

    Application of a Multi‐Layer Artificial Neural Network in a 3‐D Global Electron Density Model Using the Long‐Term Observations of COSMIC, Fengyun‐3C, and Digisonde by Wang Li, Dongsheng Zhao, Changyong He, Yi Shen, Andong Hu, Kefei Zhang

    Published 2021-03-01
    “…Abstract The ionosphere plays an important role in satellite navigation, radio communication, and space weather prediction. …”
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    Article
  16. 1576

    Multi‐Instrument Investigation of the Impact of the Space Weather Events of 6–10 September 2017 by Paul O. Amaechi, Andrew O. Akala, Johnson O. Oyedokun, K. G. Simi, O. Aghogho, Elijah O. Oyeyemi

    Published 2021-12-01
    “…The flare effect on the equatorial electrojet (EEJ) recorded on board the SWARM satellite and on the horizontal component of the geomagnetic field (H) records of ground‐based magnetometers was further examined. …”
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  17. 1577

    A Heterogeneous Ensemble Learning Method Combining Spectral, Terrain, and Texture Features for Landslide Mapping by Yi He, Hesheng Chen, Qing Zhu, Qing Zhang, Lifeng Zhang, Tao Liu, Wende Li, Huaiyuan Chen

    Published 2025-01-01
    “…In this article, we develop a landslide recognition framework, which combines the multidimensional feature advantages of spectral, terrain, and texture of optical satellite images, and constructs a heterogeneous ensemble learning method for landslide mapping. …”
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    Article
  18. 1578

    Tracking pygmy blue whale diving behaviour and validation of foraging areas defined from horizontal movement data by Michele Thums, Luciana C. Ferreira, Andrew Davenport, Micheline Jenner, Luciana Möller, Grace Russell, Robert D. McCauley, Curt Jenner

    Published 2025-01-01
    “…Foraging in large vertebrates is often inferred from horizontal movement behaviour from satellite tracking data, but the strength of this inference has not been adequately verified. …”
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    Article
  19. 1579

    Practical analysis of using PPPH and raPPPid for Precise Point Positioning in Europe by Saber Mohamed, El-Mewafi Mahmoud, Awad Ahmed

    Published 2025-06-01
    “…Assessing the reliability of using open-source software packages for post-processing of the Global Navigation Satellite System (GNSS) is essential since GNSS modernization has the potential to assist satellite navigation users. …”
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    Article
  20. 1580