Showing 501 - 520 results of 969 for search '"altitude"', query time: 0.05s Refine Results
  1. 501

    Effects of Climate Change on Ticks and Tick-Borne Diseases in Europe by J. S. Gray, H. Dautel, A. Estrada-Peña, O. Kahl, E. Lindgren

    Published 2009-01-01
    “…Data on the vector tick Ixodes ricinus suggest that an extension of its northern and altitude range has been accompanied by an increased prevalence of tick-borne encephalitis. …”
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  2. 502

    Enhanced Air Traffic Control Safety Using low Earth orbit Satellites: Non-TCAS Aircraft by Raziq Omayma, Nhaila Hasna, El Khaili Mohamed, Khiat Azeddine

    Published 2025-01-01
    “…TCAS uses information and data to determine the altitude and relative positions of nearby aircraft. …”
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  3. 503

    Slow and diverse: Upslope expansion of tree species since 1854 in the Bavarian Alps (Germany) detected by citizen science by Sabine Rösler, Michelangelo Olleck, Karl H. Mellert, Jörg Ewald

    Published 2024-12-01
    “…We motivated mountain hikers to survey high-altitude occurrences of selected tree and shrub species in the Bavarian Alps in a citizen science portal and compared the observations with historical data collected by the botanist Otto Sendtner at the end of the Little Ice Age. …”
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  4. 504

    Ionospheric Disturbances Generated by the 2015 Calbuco Eruption: Comparison of GITM‐R Simulations and GNSS Observations by J. Tyska, Y. Deng, S. Zhang, C. Y. Lin

    Published 2024-02-01
    “…A simplified source representation and spectral acoustic‐gravity wave (AGW) propagation model are used to specify the perturbation at the lower boundary of GITM‐R at 100 km altitude. Two assumptions on the propagation structure, Direct Spherical (DS) and Ground Coupled (GC), are compared to the GNSS data and these modeling specifications show good agreement with different aspects of the observations for some waveform characteristics. …”
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  5. 505

    Le hameau moderne abandonné de Pré-Rigot (Compains, Puy-de-Dôme) by Frédéric Surmely, Jay Franklin, Amélie Berthon, Alban Horry

    Published 2018-02-01
    “…The site is located at the edge of a high basaltic plateau in the Sancy mountains, at an altitude of 1100 m. We discovered this site during a field prospecting campaign carried out in 2013. …”
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  6. 506

    Identifying and Prioritizing Tourism Attractions in Ravansar Based on Tourist Attracting Potentials by Yousef Ghanbari, Hossein Komasi, Dawood Jamini, Azadََ Arianpour

    Published 2012-07-01
    “…This article from the viewpoint of its purpose is an applied one and according to its method is a descriptive - analytical study and survey. to achieve the goal of the article, 9 parameters including altitude , situation of infrastructure, number of tourists, facilities and services, accessibility, potentials of attraction surroundings, the ability to attract tourists in different seasons, economic impacts and the absence of natural hazards in seven most important tourist sites were selected and prioritized using TOPSIS techniques. …”
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  7. 507

    Thermodynamic study of thunderstorms in southwestern Iran by asal falak, reza boran, farideh asadian

    Published 2021-09-01
    “…The low-pressure counterclockwise movement of the eastern Mediterranean, Along with the high-altitude clock movement over the Gulf of Aden, it has injected moisture at levels of 850 to 700 degrees.…”
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  8. 508

    Research on Dynamic Monitoring and Early Warning of the High-Rise Building Machine during the Climbing Stage by Xi Pan, Zibo Zuo, Longlong Zhang, Tingsheng Zhao

    Published 2023-01-01
    “…In this study, the key factors influencing the climbing altitude were systematically analyzed and a method for the dynamic monitoring and early warning of HBMs during climbing was proposed. …”
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  9. 509

    Urban Landscape in Circular Images: Panoramas and Cylindrical Anamorphosis by Fabrizio Agnello, Maria Isabella Grammauta

    Published 2024-12-01
    “…The privileged subjects of panoramas were urban areas, usually portrayed from an observation point placed at a high altitude, usually a tower, a bell tower, or the roofs of a building. …”
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  10. 510

    Height measurement method of monostatic metre wave multiple input multiple output radar based on coprime array by Hongzhen Wang, Guimei Zheng, Yuwei Song

    Published 2022-06-01
    “…Abstract The height measurement algorithm of metre wave multiple input multiple output (MIMO) radar based on uniform linear array (ULA) has some problems, such as a sharp decline of angle measurement accuracy of ultra‐low altitude targets and large fluctuation of height measurement with the change of elevation. …”
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  11. 511

    Research on an Aerial Docking Strategy for Meta-UAVs Using Aerodynamic Data Surrogate Models by Kangwen Sun, Yixiang Gao, Zhiyao Wang, Haoquan Liang, Chenxuan Zhao, Xinzhe Ji

    Published 2024-12-01
    “…Meta-aircraft, in High-Altitude, Long-Endurance (HALE) unmanned aerial vehicle (UAV) applications, utilize a strategy of formation flying in the stratosphere and aerial docking in the troposphere to enhance flight range and gust resistance. …”
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  12. 512

    Recent Research Progress on Ground-to-Air Vision-Based Anti-UAV Detection and Tracking Methodologies: A Review by Arowa Yasmeen, Ovidiu Daescu

    Published 2025-01-01
    “…Furthermore, this survey explores the various Anti-UAV systems being developed and deployed globally, evaluating their effectiveness in facilitating the integration of small UAVs into low-altitude airspace. The study aims to provide researchers with a well-rounded understanding of the field by synthesizing current research trends, identifying key technological gaps, and highlighting promising directions for future research and development in Anti-UAV technologies.…”
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  13. 513

    Seasonality, Interannual Variability, and Linear Tendency of Wind Speeds in the Northeast Brazil from 1986 to 2011 by Alexandre Torres Silva dos Santos, Cláudio Moisés Santos e Silva

    Published 2013-01-01
    “…In this study, we used wind speed data from records of Universal Fuess anemographs at an altitude of 10 m from 47 weather stations of the National Institute of Meteorology (Instituto Nacional de Meteorologia-INMET) from January 1986 to December 2011. …”
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  14. 514

    Identification of subsidence areas using radar interferometry (Case study: Damaneh plain) by shokrollah kiani, ahmad mazidi, Seyed Zein Al-Abedin Hosseini

    Published 2024-09-01
    “…The independent variables used included altitude, slope, slope direction, geology, distance from the road, distance from the river, land use, distance from the village, groundwater level, piezometric wells. …”
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  15. 515

    Heterogeneous zonal impacts of climate change on a wide hyperendemic area of human and animal fascioliasis assessed within a One Health action for prevention and control. by Pablo Fernando Cuervo, María Dolores Bargues, Patricio Artigas, Paola Buchon, Rene Angles, Santiago Mas-Coma

    Published 2025-01-01
    “…This irregular pattern is influenced by physiographical features such as altitude, inner hills, closeness to Lake Titicaca, and El Niño-Southern Oscillation. …”
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  16. 516

    A Feature-Enhanced Small Object Detection Algorithm Based on Attention Mechanism by Zhe Quan, Jun Sun

    Published 2025-01-01
    “…However, due to factors such as the environment, lighting, altitude, and angle, UAV images face challenges like small object sizes, high object density, and significant background interference, making object detection tasks difficult. …”
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  17. 517

    Optimizing Energy Consumption and Latency in IoT Through Edge Computing in Air–Ground Integrated Network With Deep Reinforcement Learning by Vitou That, Kimchheang Chhea, Jung-Ryun Lee

    Published 2025-01-01
    “…With the increasing computational demands of Internet of Things (IoT) applications, air-ground integrated networks (AGIN), leveraging the capabilities of Unmanned Aerial Vehicles (UAVs) and High-Altitude Platform (HAP), provides an essential solution to these challenges. …”
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  18. 518

    USING UNMANNED AERIAL VEHICLES IN RECOGNIZING TERRAIN ANOMALIES ENCOUNTERED IN THE GAS PIPELINE RIGHT-OF-WAY (ROW) by Jarosław KOZUBA, Marek MARCISZ, Sebastian RZYDZIK, Marcin PASZKUTA

    Published 2024-06-01
    “…The flight specification was based on the main parameters with the following assumptions: taking only perpendicular (nadir) RGB photographs, flight altitude 120 m AGL, strip width 160 m, GSD ≤0.04 m and overlap ≥83%. …”
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  19. 519

    High‐Resolution 3‐D Imaging of Daytime Sporadic‐E Over Japan by Using GNSS TEC and Ionosondes by Weizheng Fu, Nicholas Ssessanga, Tatsuhiro Yokoyama, Mamoru Yamamoto

    Published 2021-12-01
    “…Then, on a fine grid and using singular value decomposition (SVD), the residues after deducting the F region contribution to TEC are utilized in reconstructing the E region, extending 80–180 km in altitude. To vertically constrain the E region solution, we introduced a family of subsets of time‐dependent empirical orthogonal functions (EOFs) from a Chapman model function tuned to manually scaled ionosonde observations. …”
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  20. 520

    Analysis of Structural Characteristics of the HALE Joined-Wing Configuration UAV by Junlei Sun, Ye Zhou, Zhou Zhou, Zhengping Wang

    Published 2025-01-01
    “…This study focuses on a high-altitude long-endurance (HALE) joined-wing configuration UAV and completes a preliminary structural design based on aircraft design indices and the fundamental principles of aircraft structure design. …”
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