Showing 701 - 720 results of 969 for search '"altitude"', query time: 0.05s Refine Results
  1. 701

    Assessment of scenarios for intensifying pasture management and grazing in fragile micro-watersheds of high Andean mountains by Jorge Eduardo Grijalva Olmedo, Paola Mercedes Palate Moreta, Roy Roger Vera-Vélez, Raúl Armando Ramos Veintimilla, Jean-François Tourrand, Arnulfo Portilla Narváez

    Published 2025-02-01
    “…The results showed a better physicochemical property of the soil at the lower altitude. The intensification of pasture management and grazing through the utilization of rest periods of 45 days or less may represent a productive and low-emission option. …”
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  2. 702

    Distinct MLT asymmetry of auroral kilometric radiation observed by the FAST satellite by JiaWen Tang, Sai Zhang, FuLiang Xiao, HongMing Yang, Si Liu, YiHua He, Chang Yang, YuYue Jin, ZhouKun Deng, Ping Li, Archie James Johnston

    Published 2025-01-01
    “…In this study, using observations from the FAST satellite from 30 August 1996 to 9 September 2001, the distribution of AKR in altitude = 500−4500 km and invariant latitude (|ILAT|) = 60°−80° has been analyzed. 63045 AKR samples have been identified with ~48% (52%) samples on the dayside (nightside). …”
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  3. 703

    Experimental Investigation of Brazilian 14-X B Hypersonic Scramjet Aerospace Vehicle by João Felipe de Araujo Martos, Israel da Silveira Rêgo, Sergio Nicholas Pachon Laiton, Bruno Coelho Lima, Felipe Jean Costa, Paulo Gilberto de Paula Toro

    Published 2017-01-01
    “…The Brazilian hypersonic scramjet aerospace vehicle 14-X B is a technological demonstrator of a hypersonic airbreathing propulsion system based on the supersonic combustion (scramjet) to be tested in flight into the Earth’s atmosphere at an altitude of 30 km and Mach number 7. The 14-X B has been designed at the Prof. …”
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  4. 704

    False Alarm Causes and Wind Field Sensitivity Analysis of a Severe Rainfall Event in the Guangdong-Hong Kong-Macao Greater Bay Area Urban Cluster by Lan Zhang, Jiawen Zheng, Huaiyu Li, Rui Yu, Lei Wei, Yufei Zhang

    Published 2024-01-01
    “…On May 11, 2022, despite the favorable upper and lower-level circulation patterns of the high-altitude trough, shear line, and southwest jet stream, the urban cluster of the Guangdong-Hong Kong-Macao Greater Bay Area experienced light to moderate rainfall, deviating significantly from the forecasted heavy rain and local heavy rainstorm. …”
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  5. 705

    Curcumin reverses cognitive deficits through promoting neurogenesis and synapse plasticity via the upregulation of PSD95 and BDNF in mice by Gaifen Li, Qiong Wu, Chao Wang, Pin Deng, Jiaxin Li, Zhiguang Zhai, Yubo Li

    Published 2025-01-01
    “…Abstract Following prolonged exposure to hypoxic conditions, for example, due to ascent to high altitude, aging or stroke, cognitive deficits can develop. …”
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  6. 706

    Natural reproduction in tropical buffalo herds by Laura Gómez Estrada

    Published 2023-11-01
    “…Animals were maintained in low tropical rainforest with a temperature of 23–32°C, annual rainfall (2300 mm3 and 570 mm3), altitude (2 – 190 masl) for Uraba and Puerto Boyaca, kept in natural and improved pastures (Brachiaria humidicola or B. decumbens), with water and minerals ad libitum. …”
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  7. 707

    Simulation and response mechanism of potential geographical distribution of plateau pika Ochotona curzoniae under climate change by Yanni Song, Hainan Chong, Dawei Wang, Haijun Xiao

    Published 2025-01-01
    “…The central and eastern parts of the QTP are potential distribution areas for plateau pika, with the current suitable area totaling 8.01 × 105 km2, accounting for 32.04 % of the QTP. 3) The suitable areas of plateau pika will gradually migrate to higher altitude areas, especially with more significant changes under high-emission scenarios (SSP370 and SSP585). 4) Human activities have relatively limited impacts on the distribution pattern of plateau pika, mainly manifested as suitability changes in some local areas. …”
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  8. 708

    An investigation on the wind profiles and gravity wave dynamics in MLT region based on the meteor radars from the Meridian Project by Tai Liu, Zhe Wang, MengXi Shi, Willie Soon, ShiCan Qiu

    Published 2025-01-01
    “…The meteor radar can detect the zenith angle, azimuth, radial velocity, and altitude of meteor trails so that one can invert the wind profiles in the mesosphere and low thermosphere (MLT) region, based on the Interferometric and Doppler techniques. …”
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  9. 709

    The effect of ranger patrols on the sighting of large mammals by local herders in Northern Iran by Farid Salmanpour, Zahra Shakoori, Mahan Salmanpour, Mehdi Tizrouyan, Mehdi Kia, Rahman Eshaghi, Saeid Ghomi, Abolfazl Rahbarizadeh, Rahman Naeimaei, Mehdi Ghaderi

    Published 2025-01-01
    “…This study investigates the impact of ranger patrols on large mammal sightings in the Central Alborz Protected Area (CAPA), northern Iran, a crucial wildlife corridor with UNESCO-listed Hyrcanian forests and high-altitude grasslands. CAPA also supports livestock grazing in over 200 villages, making it a key area for studying human-wildlife interactions. …”
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  10. 710

    A New Global Ionospheric Electron Density Model Based on Grid Modeling Method by Huijun Le, Tingwei Han, Qiaoling Li, Libo Liu, Yiding Chen, Hui Zhang

    Published 2022-06-01
    “…The model also takes into account the influence of both solar and geomagnetic activities on the ionosphere. At the altitude below the F2 peak, the RO electron density observation suffers from an artificial meridional maximum between the double peaks of the equatorial ionization anomaly, referred hereafter as the three‐peak error. …”
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  11. 711

    A combined school survey and reactive case detection reveals minimal local transmission of malaria in the Highlands Region of Papua New Guinea by Osama Seidahmed, Serah Kurumop, Elizabeth Wawaga, Melvin Kualawi, Valentine Siba, Sharon Jamea, Yangta Ura, Leo Makita, William Pomat, Manuel W. Hetzel

    Published 2025-01-01
    “…Eleven positive individuals (84%) reported recent travel, mainly to lower-altitude endemic areas. Long-Lasting Insecticidal Nets were used by 34.8% [95% CI 28.7, 40.8] of household members. …”
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  12. 712

    Distance of flight of cosmic-ray muons to study dynamics of the upper muosphere by H. K. M. Tanaka, H. K. M. Tanaka, H. K. M. Tanaka

    Published 2025-01-01
    “…In this work, the layer of the Earth which constantly contains a high concentration of muons (<span class="inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" id="M1" display="inline" overflow="scroll" dspmath="mathml"><mrow><mo>∼</mo><mn mathvariant="normal">8</mn><mo>×</mo><msup><mn mathvariant="normal">10</mn><mn mathvariant="normal">12</mn></msup></mrow></math><span><svg:svg xmlns:svg="http://www.w3.org/2000/svg" width="51pt" height="14pt" class="svg-formula" dspmath="mathimg" md5hash="d43d98c2d8f365b50e096395ecb749e2"><svg:image xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="gi-14-1-2025-ie00001.svg" width="51pt" height="14pt" src="gi-14-1-2025-ie00001.png"/></svg:svg></span></span> muons) and its upper border are respectively defined as the muosphere and muopause. The altitude of the muosphere spans from the lower stratosphere to the upper crust of the Earth. …”
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  13. 713

    Fluorescence properties of long-range-transported smoke: insights from five-channel lidar observations over Moscow during the 2023 wildfire season by I. Veselovskii, M. Korenskiy, N. Kasianik, B. Barchunov, Q. Hu, P. Goloub, T. Podvin

    Published 2025-02-01
    “…This configuration enables the assessment of the spectral dependence of fluorescence backscattering over a broad range of altitudes, from the planetary boundary layer (PBL) to the middle and upper troposphere (MUT). …”
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  14. 714

    CBGS-YOLO: A Lightweight Network for Detecting Small Targets in Remote Sensing Images Based on a Double Attention Mechanism by Zhenyuan Wu, Di Wu, Ning Li, Wanru Chen, Jie Yuan, Xiangyue Yu, Yongqiang Guo

    Published 2024-12-01
    “…Firstly, the minuteness of certain targets in relation to the entire image in which they occur, particularly when the camera is situated at a higher altitude, renders them difficult to detect. Secondly, the varying background and lighting conditions in remote sensing images further complicate the detection task. …”
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  15. 715

    First Comprehensive List of Phlebotomine Sand Fly Species (Diptera: Psychodidae) in a Leishmaniasis Focus (Djelfa, Algeria), Including the First Record of Phlebotomus langeroni Fem... by Fatma Messaoudene, Slimane Boukraa, Said Chaouki Boubidi, Ahlem Guerzou

    Published 2024-09-01
    “…Considering the other factors, there was a moderate link between species richness and altitude (p= 0.01 R2= 0.519). However, neither rainfall nor wind speed (p> 0.05) were correlated with sand fly fauna. …”
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  16. 716

    Significant Ionospheric Hole and Equatorial Plasma Bubbles After the 2022 Tonga Volcano Eruption by Ercha Aa, Shun‐Rong Zhang, Philip J. Erickson, Juha Vierinen, Anthea J. Coster, Larisa P. Goncharenko, Andres Spicher, William Rideout

    Published 2022-07-01
    “…(b) Pronounced post‐volcanic evening equatorial plasma bubbles (EPBs) were continuously observed across the wide Asia‐Oceania area after the arrival of volcano‐induced waves; these caused a Ne decrease of 2–3 orders of magnitude at Swarm/ICON altitude between 450 and 575 km, covered wide longitudinal ranges of more than 140°, and lasted around 12 hr. …”
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  17. 717

    Impact of Saharan dust on particulate matter characteristics in an urban and a natural locality in Central Europe by Jan Loskot, Daniel Jezbera, Martina Nalezinková, Adéla Holubová Šmejkalová, Danilo Fernandes, Jan Komárek

    Published 2024-12-01
    “…It may be explained by the different altitudes of the sampling localities, as coarse particles are more susceptible to gravitational pull while fine particles tend to remain suspended at higher altitudes. …”
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  18. 718

    Factors Associated with Polypharmacy in Older Adults from 12 High-Andean Communities in Peru, 2013-2017 by Marquina-Torres, Pierina E, Marquez-Yataco, Juan E., Ñaña-Cordova, Alvaro Micael, Jordan-Beisaga, Itala, Parodi, José F., Apolaya, Moisés, Runzer-Colmenares, Fernando M.

    Published 2025-01-01
    “…Conclusions: Polypharmacy in older adults is influenced by sociocultural and demographic factors such as retirement, alcohol and tobacco consumption, and hypertension. Altitude did not show a significant association with polypharmacy.…”
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  19. 719

    Multi-Spectral Point Cloud Constructed with Advanced UAV Technique for Anisotropic Reflectance Analysis of Maize Leaves by Kaiyi Bi, Yifang Niu, Hao Yang, Zheng Niu, Yishuo Hao, Li Wang

    Published 2024-12-01
    “…Reflectance anisotropy in remote sensing images can complicate the interpretation of spectral signature, and extracting precise structural information under these pixels is a promising approach. Low-altitude unmanned aerial vehicle (UAV) systems can capture high-resolution imagery even to centimeter-level detail, potentially simplifying the characterization of leaf anisotropic reflectance. …”
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  20. 720

    The Process of Acclimation to Chronic Hypoxia Leads to Submandibular Gland and Periodontal Alterations: An Insight on the Role of Inflammatory Mediators by Antonela Romina Terrizzi, María Inés Conti, María Pilar Martínez, Javier Fernández-Solari

    Published 2018-01-01
    “…Adult Wistar rats were exposed to CCH or CIH simulating 4200 meters of altitude during 90 days. Salivary secretion was decreased in animals exposed to hypoxia, being lower in CIH, together with increased prostaglandin E2 (PGE2) content, TBARS concentration, and the presence of apoptotic nuclei and irregular secretion granules in SMG. …”
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