Showing 81 - 100 results of 969 for search '"altitude"', query time: 0.07s Refine Results
  1. 81

    Research on the Power Recovery of Diesel Engines with Regulated Two-Stage Turbocharging System at Different Altitudes by Hualei Li, Lei Shi, Kangyao Deng

    Published 2014-01-01
    “…Recovering the boost pressure is very important in improving the dynamic performance of diesel engines at high altitudes. A regulated two-stage turbocharging system is an adequate solution for power recovery of diesel engines. …”
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    Proposition for Path Loss Prediction Models with the Inclusion of Altitude Parameter and Optimization Through Evolutionary Algorithms by Evandro M. Jorge Júnior, Antônio C. P. Veiga

    Published 2025-02-01
    “…A significant innovation was the inclusion of an altitude parameter weighted by an optimized coefficient, which notably enhanced the prediction accuracy. …”
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  6. 86

    Altitude, geological substrate, and dynamics of Natura 2000 habitat types in Cretan low-vegetation pastures by Frederic Bendali, Michel Godron

    Published 2024-10-01
    “…The altitude of HT 5420 remains downward of 800 m. HT 4090 and 5430 are also characterized by calcareous geological substrates, namely hard limestone and marble. …”
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  7. 87

    Radiation Data Portal: Integration of Radiation Measurements at the Aviation Altitudes and Solar‐Terrestrial Environment Observations by V. M. Sadykov, I. N. Kitiashvili, W. K. Tobiska, M. Guhathakurta

    Published 2021-01-01
    “…Abstract The impact of radiation dramatically increases at high altitudes in the Earth's atmosphere and in space. Therefore, monitoring and access to radiation environment measurements are critical for estimating the radiation exposure risks of aircraft and spacecraft crews and the impact of space weather disturbances on electronics. …”
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    The Effect of Mutual Coupling on a High Altitude Platform Diversity System Using Compact Antenna Arrays by Tommy Hult, Abbas Mohammed

    Published 2010-01-01
    “…We analyze the destructive effects of mutual coupling and spatial correlation between the separate antenna elements on a combined diversity system consisting of multiple HAPs (High-Altitude Platforms) employing various compact MIMO (Multiple-Input Multiple-Output) antenna array configurations, in order to enhance the mutual information in HAP communication links. …”
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  12. 92

    Classification hiérarchique des zones boisées d’altitudes de l’île d’Anjouan, Comores by Houmadi Amélaïd, Pascal Fust, Kathleen Green, Mohamed Daniel, Ishaka Said, Joelisoa Ratsirarson, Steeves Buckland

    Published 2020-10-01
    “…Six habitat classes were identified : plantations in high altitude open areas, plantations in less wooded areas, low altitude agroforestry, severely degraded and under-planted forest, degraded forest and dense natural forest. …”
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    Characterization of Radiation Exposure at Aviation Flight Altitudes Using the Nowcast of Aerospace Ionizing Radiation System (NAIRAS) by Daniel B. Phoenix, Chris J. Mertens, Guillaume P. Gronoff, Kent Tobiska

    Published 2024-04-01
    “…Abstract Exposure to ionizing radiation from galactic cosmic rays (GCR) and solar energetic particles (SEP) at aircraft flight altitudes can have an adverse effect on human health. …”
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    Design and Performance Evaluation of Propeller for Solar-Powered High-Altitude Long-Endurance Unmanned Aerial Vehicle by Donghun Park, Yunggyo Lee, Taehwan Cho, Cheolwan Kim

    Published 2018-01-01
    “…Design, wind tunnel test, computational fluid dynamics (CFD) analysis, and flight test data analysis are conducted for the propeller of EAV-3, which is a solar-powered high-altitude long-endurance unmanned aerial vehicle developed by Korea Aerospace Research Institute. …”
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  17. 97

    Improving fruit traits of 'Braeburn' apples in low-altitude regions: The impact of foliar spray and rootstock interactions by Leili Habibzadeh, Mahdi Alizadeh, Mohammad Mehdi Sharifani

    Published 2025-03-01
    “…Thus, cultivating red apple cultivars in low-altitude regions like Mashhad is not recommended due to environmental factors affecting pigmentation. …”
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    Temperature Control Measures and Temperature Stress of Mass Concrete during Construction Period in High-Altitude Regions by Zhenhong Wang, Li Tao, Yi Liu, Jiang Yunhui

    Published 2018-01-01
    “…This study has a significant value as a reference for similar projects in high-altitude regions.…”
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