Showing 441 - 460 results of 588 for search '"altitude"', query time: 0.06s Refine Results
  1. 441

    A Cross-Stage Focused Small Object Detection Network for Unmanned Aerial Vehicle Assisted Maritime Applications by Gege Ding, Jiayue Liu, Dongsheng Li, Xiaming Fu, Yucheng Zhou, Mingrui Zhang, Wantong Li, Yanjuan Wang, Chunxu Li, Xiongfei Geng

    Published 2025-01-01
    “…Limited computing resources, insufficient pixel representation for small objects in high-altitude images, and challenging visibility conditions hinder UAVs’ target recognition performance in maritime search and rescue operations, highlighting the need for further optimization and enhancement. …”
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  2. 442

    Woody Species Structure and Regeneration Status in Kafta Sheraro National Park Dry Forest, Tigray Region, Ethiopia by Fitsum Temesgen, Bikila Warkineh

    Published 2020-01-01
    “…There was a significant correlation between altitude, anthropogenic disturbance (grazing and fire frequency), and density of seedling, sapling, and mature trees. …”
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  3. 443

    Efficacy and prognosis of dapagliflozin in the treatment of patients with acute myocardial infarction complicated with type 2 diabetes in Xining area by Jinping Chai, Delian Li, Yanmin Liu, Xiaoling Su

    Published 2025-02-01
    “…Xining is situated in a region of middle to high altitude and due to its unique geographical environment, coupled with the population's limited health awareness, unequal medical standards and other factors, there remain some AMI patients who are difficult to diagnose early on. …”
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  4. 444

    Development of a Peltier-based chilled-mirror hygrometer, SKYDEW, for tropospheric and lower-stratospheric water vapor measurements by T. Sugidachi, M. Fujiwara, K. Shimizu, S.-Y. Ogino, J. Suzuki, R. J. Dirksen

    Published 2025-01-01
    “…These results show that SKYDEW can reliably measure atmospheric water vapor up to 25 km altitude. Data from several SKYDEW and CFH measurements predominantly agree within their respective uncertainties, although a systematic difference of <span class="inline-formula">∼</span> 0.5 K between SKYDEW and CFH was found in the stratosphere, the reason for which is unknown. …”
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  5. 445

    Community structure and diversity of myxobacteria in soils from Inner Mongolia, China by Zhihua Wu, Zhihua Wu, Songyuan Li, Xuehan Wang, Xuehan Wang, Huirong Liu

    Published 2025-01-01
    “…In addition, the latitude and longitude of the sampling point and the soil pH, water content, available phosphorus content and organic matter content had a greater impact on the myxobacteria community structure of samples, while the altitude of the soil sample and the contents of available potassium and alkaline nitrogen had a relatively small impact. …”
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  6. 446

    Ultralight aircraft and conventional digital cameras as an alternative for urban mapping by Román Edén Parra-Galaviz, Manuel de Jesús Pérez-Valdez, Omar Llanes-Cárdenas, Lennin Enrique Amador-Castro, Rafael Macías-Segura, Ciro de la Concepción Díaz-Hernández, Alberto Gaxiola

    Published 2025-01-01
    “…A 70 km2 city was mapped using a conventional 39-megapixel camera mounted on a ULAC at 1000 m altitude to validate these tools. Digital processing yielded a ground resolution of 19.7 cm/pixel and root mean square errors (RMSE) of 32 cm in planimetry and 25 cm in altimetry.Additionally, the calibration parameters of the camera used were obtained. …”
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  7. 447

    The Deuterium Isotopic Ratio of Water Released From the Martian Caps as Measured With TGO/NOMAD by Geronimo L. Villanueva, Giuliano Liuzzi, Shohei Aoki, Shane W. Stone, Adrian Brines, Ian R. Thomas, Miguel Angel Lopez‐Valverde, Loic Trompet, Justin Erwin, Frank Daerden, Bojan Ristic, Michael D. Smith, Michael J. Mumma, Sara Faggi, Vincent Kofman, Séverine Robert, Lori Neary, Manish Patel, Giancarlo Bellucci, Jose Juan Lopez‐Moreno, Ann Carine Vandaele

    Published 2022-06-01
    “…The measurements reveal dramatic variability of water and D/H over short timescales and with altitude and location on the planet. We investigated the release of seasonal water from the polar caps during southern and northern summer, by mapping water and its D/H near the polar regions. …”
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  8. 448

    How much water vapour does the Tibetan Plateau release into the atmosphere? by C. Zheng, L. Jia, G. Hu, M. Menenti, M. Menenti, J. Timmermans

    Published 2025-01-01
    “…<p>Water vapour flux, expressed as evapotranspiration (ET), is critical for understanding the earth climate system and the complex heat–water exchange mechanisms between the land surface and the atmosphere in the high-altitude Tibetan Plateau (TP) region. However, the performance of ET products over the TP has not been adequately assessed, and there is still considerable uncertainty in the magnitude and spatial variability in the water vapour released from the TP into the atmosphere. …”
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  9. 449

    Assessing national exposure to and impact of glacial lake outburst floods considering uncertainty under data sparsity by H. Chen, Q. Liang, J. Zhao, S. B. Maharjan

    Published 2025-02-01
    “…However, this is challenged by the limited availability of data and the inaccessibility to most of the glacial lakes in high-altitude areas. The data challenge is exacerbated when dealing with multiple lakes across an expansive spatial area. …”
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  10. 450

    Efficacy of Multiple Micronutrients Fortified Milk Consumption on Iron Nutritional Status in Moroccan Schoolchildren by Imane El Menchawy, Asmaa El Hamdouchi, Khalid El Kari, Naima Saeid, Fatima Ezzahra Zahrou, Nada Benajiba, Imane El Harchaoui, Mohamed El Mzibri, Noureddine El Haloui, Hassan Aguenaou

    Published 2015-01-01
    “…The consumption of fortified milk reduced the prevalence of iron deficiency by 27% in schoolchildren living in high altitude rural region of Morocco. Clinical Trial Registration. …”
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  11. 451

    Algorithm for Cloud Particle Phase Identification Based on Bayesian Random Forest Method by Fu Tao, Yang Zhipeng, Tao Fa, Hu Shuzhen, Lu Yuxiang, Fu Changqing

    Published 2025-01-01
    “…Models are established separately for rainy and non-rainy weather conditions, utilizing the cloud radar's reflectivity factor, spectral width of velocity, radial velocity, and depolarization ratio, as well as the microwave radiometer's vertical temperature profile and the altitude of each parameter. These features are utilized to train models for the identification of snowflakes, ice crystals, liquid cloud droplets, and raindrops. …”
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  12. 452

    Contribution of Unresolved Sources to Diffuse Gamma-Ray Emission from the Galactic Plane by Jiayin He, Houdun Zeng, Yi Zhang, Qiang Yuan, Rui Zhang, Jun Li

    Published 2025-01-01
    “…The Galactic diffuse gamma-ray emission between 10 TeV and 1 PeV has been recently measured by the square kilometer array (KM2A) of the Large High Altitude Air Shower Observatory (LHAASO). The flux is higher than predicted for cosmic rays interacting with the interstellar medium. …”
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  13. 453

    Evaluating the performance of snow depth reanalysis products in the arid region of Central Asia by Liancheng Zhang, Guli∙Jiapaer, Tao Yu, Hongwu Liang, Kaixiong Lin, Tongwei Ju, Philippe De Maeyer, Tim Van de Voorde

    Published 2025-12-01
    “…Both in situ data and TCH indicate poor performance for all five SD products in Tajikistan and in high-altitude areas. Errors in the five SD reanalysis datasets in certain regions may stem from inaccuracies in precipitation and air temperature forcing data. …”
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  14. 454

    Transport into the polar stratosphere from the Asian monsoon region by X. Yan, P. Konopka, F. Ploeger, F. Ploeger, A. Podglajen

    Published 2025-01-01
    “…The transport of air masses from the AM boundary layer to the stratospheric polar vortex primarily occurs above an altitude of about 450 K and over timescales exceeding 2 years. …”
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  15. 455

    Environmental Factors Affecting the Phytoplankton Composition in the Lake of Tibetan Plateau by Qinghuan Zhang, Zijian Xie, Chunhua Li, Chun Ye, Yang Wang, Zishu Ye, Weiwei Wei, Hao Wang

    Published 2025-01-01
    “…Due to the high altitude, unique geographical location, difficult accessibility and low temperature, the environmental factors influencing phytoplankton composition have rarely been investigated in the Selin Co Lake, which is the largest lake in the Tibetan Plateau. …”
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  16. 456
  17. 457

    Using GIS and Analytical Hierarchy Process (AHP) for flood hazard assessment based on morphological and hydrological criteria, case of the Meknes region, Morocco by Essahlaoui Narjisse, Ijlil Safae, Alitane Abdennabi, Mohajane Meriame, El Ouali Abdelhadi, Rhazi Abdelaziz, Oumou Abdellah, Alouane Ayoub, Ammari Zakaria, Khrabcha Abdelali, El Hafyani Mohamed, Essahlaoui Ali, Aouragh My Hachem, Van Rompaey Anton

    Published 2025-01-01
    “…This hazard is assessed by taking into account morphological criteria (slope, altitude, density of the hydrographic network, curvature) and hydrological criteria (drainage density, stream power index (SPI) and rainfall data). …”
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  18. 458

    Search for Neutrino Signals Correlated with LHAASO Diffuse Galactic Emission by Wenlian Li, Tian-Qi Huang, Donglian Xu, Huihai He

    Published 2025-01-01
    “…Recently, the Large High Altitude Air Shower Observatory (LHAASO) reported measurements of diffuse γ -rays from the Galactic plane with energies ranging from sub-TeV to 1 PeV. …”
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  19. 459

    La mise en œuvre d’un aqueduc : l’exemple de la Brévenne à Lyon by Catherine Coquidé, Antoine Valois

    Published 2023-12-01
    “…The Brévenne aqueduct was neither the first nor the last to be built, but it provided, around the middle of the 1st century AD, the highest flow available at an altitude never previously supplied. The standard of its construction also emphasises the containment of water at a level that would not be equalled in Lyon.On the other hand, its slope is less regular than that of the Gier aqueduct, since maintaining a sufficient height at the base of the flow is not its main concern. …”
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  20. 460

    L’alimentation hydraulique de Saint-Romain-en-Gal (Rhône), quartier de Vienne antique (Isère) by Laurence Brissaud, Jean-Luc Prisset

    Published 2023-12-01
    “…It was established at a higher altitude and circumvented the hills to end above the Saint-Gervais stream. …”
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