Showing 381 - 400 results of 969 for search '"altitude"', query time: 0.05s Refine Results
  1. 381

    The SET HASDM Density Database by W. Kent Tobiska, Bruce R. Bowman, S. David Bouwer, Alfredo Cruz, Kaiya Wahl, Marcin D. Pilinski, Piyush M. Mehta, Richard J. Licata

    Published 2021-04-01
    “…The database has a grid size of 10° × 15° (latitude, longitude) with 25 km altitude steps between 175 and 825 km. A description of the source of the database, its validation, its information content, and its accessibility are provided.…”
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    Article
  2. 382

    Finite-Time Antisaturation Tracking Control for Hypersonic Vehicle with Uncertain Dynamics by Yuwei Cui, Yushan He, Aijun Li, Jun Li, Shuo Song

    Published 2020-01-01
    “…This paper concentrates on the problem of finite-time altitude and velocity tracking control for hypersonic flight vehicles that encounter unmodeled dynamics and input saturations. …”
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  3. 383

    Aircraft Noise Monitoring in Function of Flight Safety and Aircraft Model Determination by Andrija Vidović, Igor Štimac, Robert Zečević-Tadić

    Published 2017-01-01
    “…In addition, it is possible to determine the aircraft altitude and, perhaps most significantly, the increase of flight safety through the detection of potential failures on the aircraft structure and/or engine during the overflight of a noise monitoring terminal.…”
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  4. 384

    The Geoecological Evaluation of the Heritage Interest of Polygonal Soils Inherited in Alpine Mountains. The Example of the Col du Noyer (Massif du Dévoluy, Hautes Alpes, France) by Pierre Pech, Mahé Ajinca, Sylvain Abdulhak, Eric Hustache, Laurent Simon, Brigitte Talon

    Published 2021-06-01
    “…At an altitude of 1664 m, the Col du Noyer in the French Dévoluy Mountains, which is accessible in summer by road, is one of the most popular Alpine passes. …”
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    Article
  5. 385

    Analysis of Boeing Aircraft’s Fuel Consumption B737-800 NG for Yogyakarta-Singapore-Jakarta Route by Suar Ishak, Elisa Kusrini

    Published 2020-06-01
    “…However, there were aspects that need to be considered in the route using this method including temperature, altitude, flight distance and fuel prices that were differrent at each airport. …”
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  6. 386

    Quel futur pour les services écosystémiques de la forêt alpine dans un contexte de changement climatique ? by Benoît Courbaud, Georges Kunstler, Xavier Morin, Thomas Cordonnier

    Published 2011-01-01
    “…We are expecting an increase in high altitude species that could result in the decrease in resinous and subalpine species. …”
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  7. 387

    Determination of elements present in select medicinal plants used by tribal people for therapeutic purposes by D. Ch. Raju Babu, K. Surendra, A. D. P. Rao

    Published 2024-11-01
    “…Twelve medicinal plants have been collected from the Paderu agency area (at high altitude) of Visakhapatnam District, AP state of India, which are used for traditional treatment by local tribal people. …”
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  8. 388

    A LANDSLIDE SUSCEPTIBILITY ANALYSIS FOR BUZAU COUNTY, ROMANIA by VERONICA ZUMPANO, HAYDAR HUSSIN, PAOLA REICHENBACH, DAN BĂLTEANU, MIHAI MICU, SIMONE STERLACCHINI

    Published 2014-06-01
    “…The model was run considering eight environmental factors: slope, altitude, internal relief, planar and profile curvature, aspect, soil, land-use. …”
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  9. 389

    La production d’un paysage par et pour le ski by Caterina Franco

    Published 2021-12-01
    “…Indeed, the creation of ski resorts is not only realised by the implantation of buildings and infrastructures at high altitudes. On the contrary, various components of the environment such as the forest, the morphology of the soil and the hydrography are modified. …”
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  10. 390

    What is the future of the ecosystem services of the Alpine forest against a backdrop of climate change? by Benoît Courbaud, Georges Kunstler, Xavier Morin, Thomas Cordonnier

    Published 2011-01-01
    “…We are expecting an increase in high altitude species that could result in the decrease in resinous and subalpine species. …”
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    Article
  11. 391

    A Study on the Lateral Distribution of Cherenkov Radiation of Extensive Air Showers at High Observation Levels by Davoud Purmohammad

    Published 2024-11-01
    “…By using CORSIKA code, for simulation of extensive air showers for observation levels at different altitudes, the variation of the lateral distribution of Cherenkov radiation of showers with altitude is studied. …”
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  12. 392

    Disturbance Observer-Based Adaptive Control of Hypersonic Vehicles with Constrained Actuators by Guan Wang, Li Li, Weihua Li, Huajun Zhou, Changbo Ma, Hongwei Xia

    Published 2020-01-01
    “…For the velocity subsystem, an auxiliary system is employed to handle the scramjet input saturation issue. For the altitude subsystem, the magnitude/rate constraints and the dynamics of aerodynamic control surfaces are addressed by the control allocation module. …”
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  13. 393
  14. 394

    Évolution de l’environnement alpin by Philippe Schoeneich, Carmen de Jong

    Published 2008-12-01
    “…State funding often prioritises polar research at the expense of high altitude areas, whereas funding schemes from bodies such as Interreg do not sufficiently address the need for fundamental research, which is nevertheless a necessary first step prior to establishing scenarios. …”
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  15. 395

    Topographie et restitution du chantier de l’aqueduc d’Arles (Bouches-du-Rhône) by Robert Fabre, Philippe Leveau, Vincent Dumas

    Published 2023-12-01
    “…To bypass the western part of the range while losing as little slope as possible, the aqueduct used bridges to enter and cross the valleys cut into the slopes, and crossed the interfluves via tunnels with a cumulative length of 950 m.In the terminal section, which starts at an altitude of 24 m NGF (general levelling of France), the pipe had to maintain sufficient altitude to supply the Roman colony. …”
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  16. 396

    Robust optimization of air based relay for internet of things based on UAV by Wei WANG, Renqian GU, Li3 PENG, Jijun ZHAO, Zhongcheng WEI, Cunxi CHANG

    Published 2022-03-01
    “…Faced with the need of key regional information transmission in the emergency situation where the perception network lacks of ground base stations, considered about the uncertainty of spatial positioning of emergency internet of things (eIoT) nodes, a robust optimization method for air-based relay of eIoT based on unmanned aerial vehicle (UAV) was proposed.Firstly, the system modeling of this kind of eIoT was carried out.Secondly, according to the fact that the non-convex and nonlinear model has a great correlation with the positioning accuracy of the ground-based eIoT equipment and the tiny disturbance of the positioning information can lead to the invalid solution of the model, the system model was relaxed and the uncertainty description of the location data of the eIoT equipment was introduced, Then the robust equivalent model of the low altitude UAV relay communication power optimization problem was obtained.Thirdly, the model solving algorithm was given.Finally, the effectiveness and robustness of the proposed method were verified from the deployment of UAV and communication energy consumption.At the same time, the factors effecting the effectiveness of the proposed method were analyzed.…”
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  17. 397

    Evaluation of Vector Parameters of Wind and Its Role in Dust Storm in Iran’s Sistan by Taghi Tavoosi, Mohammad Saligheh, Nematollah Safarzaei

    Published 2012-04-01
    “…Since this system has been located in East and Southeast of Sistan, in the north-south movement of air from high-altitude site located on the Caspian Sea to the northwest and it change to southeast-Northwest current.…”
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  18. 398

    Butterfly Species Richness in Selected West Albertine Rift Forests by Patrice Kasangaki, Anne M. Akol, Gilbert Isabirye Basuta

    Published 2012-01-01
    “…The first cluster had forests characterized by relatively high altitude and low species richness despite the big area in the case of Rwenzori and being close to the supposed Pleistocene refugium. …”
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  19. 399

    A contribution to the knowledge of the butterfly fauna (Lepidoptera: Rhopalocera) of the Cerkljansko Idrijsko region, west Slovenia, with notes on their vertical distribution by Rudi Verovnik

    Published 2000-12-01
    “…Črna prst at an altitude around 1800 m. The highest diversity of butterfly species and habitat types was observed between 500 and 750 m. …”
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  20. 400

    Concise Neural Nonaffine Control of Air-Breathing Hypersonic Vehicles Subject to Parametric Uncertainties by Xiangwei Bu, Qiong Wang, Yan Zhao, Guangjun He

    Published 2017-01-01
    “…For the velocity dynamics, an adaptive neural controller is devised based on a minimal-learning parameter (MLP) technique for the sake of decreasing computational loads. The altitude dynamics is rewritten as a pure feedback nonaffine formulation, for which a novel concise neural control approach is achieved without backstepping. …”
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