Showing 141 - 160 results of 588 for search '"altitude"', query time: 0.06s Refine Results
  1. 141

    Extent of spike shedding and stem wilting of pepper (Piper nigrum L.) in Morogoro District, Tanzania by Abdul Jafari Shango, Ramadhani Omari Majubwa, Amon Petro Maerere

    Published 2020-06-01
    “…Fisher’s exact test at (α = 0.05) was used to compare the effects of production constraints and altitude. A regression analysis was performed to explore the relationship between altitude and the incidence of spike shedding and stem wilting. …”
    Get full text
    Article
  2. 142

    Effects of permafrost stability changes on vegetation dynamics in the middle part of the Greater Khingan Mountains by Jiaman Sun, Wei Shan, Chengcheng Zhang

    Published 2025-01-01
    “…Vegetation dynamics exhibited spatial heterogeneity; some low-altitude areas maintained high growth vitality despite a shortened growing season, whereas Gr-NDVI decreased in other regions. …”
    Get full text
    Article
  3. 143

    Evaluation of Calibration Method for Field Application of UAV-Based Soil Water Content Prediction Equation by Donggeun Kim, Younghwan Son, Jaesung Park, Taejin Kim, Jihun Jeon

    Published 2019-01-01
    “…Since the resolution of the images taken by the UAV is different according to the altitude, the water content estimation formula is developed by using the images taken at each altitude. …”
    Get full text
    Article
  4. 144
  5. 145

    Dietary and environmental factors affecting the dynamics of the gut bacteria in Tibetan Awang sheep (Ovis aries) across divergent breeding models by Yuhao Wang, Xinping Wang, Yirong Wang, Yirong Wang, Songyu Liao, Zhaxi Pubu, Jiangcuo Silang, Lixu Chai, Siyue Zhao, Siyue Zhao

    Published 2025-02-01
    “…Meanwhile, the predominant presence of Bacteroides with increasing altitude of breeding locations indirectly demonstrates its crucial role in mediating energy acquisition among Awang sheep at high altitudes. …”
    Get full text
    Article
  6. 146

    An experimental study of fire development under varying ventilation conditions during the depressurization process in pressurized buildings by Kaiqiang Wang, Zhigang Shang, Weijun Liu, Kang Wen, Jun Zhang, Bin Yao, Weiguo Song

    Published 2025-03-01
    “…Hermetic pressurized buildings are a new type of building in high-altitude areas that efficiently addresses issues such as high-altitude reactions. …”
    Get full text
    Article
  7. 147

    A Comparative Study on Ascorbic Acid Concentration, Total Phenol, and Flavonoid Content in Citrus Species Grown in a Different Region of Western Nepal by Roshani Gurung, Sabina Baral, Santosh Parajuli, Dhana Dhami, Sushila Ghimire

    Published 2022-01-01
    “…Different genetic and environmental factors like altitude, temperature, light radiation, etc. affect the production of phytoconstituents like ascorbic acid, phenol, flavonoid, tannin, etc. …”
    Get full text
    Article
  8. 148

    Spatiotemporal Analysis of Atmospheric Chemical Potential Anomalies Associated with Major Seismic Events (Ms ≥ 7) in Western China: A Multi-Case Study by Qijun Jiao, Qinqin Liu, Changgui Lin, Feng Jing, Jiajun Li, Yuxiang Tian, Zhenxia Zhang, Xuhui Shen

    Published 2025-01-01
    “…The distribution of vertical ACP revealed distinct altitude-dependent characteristics. The ACP at lower atmospheric layers (100–2000 m) exhibited a high correlation, and this correlation decreased with increasing altitude. …”
    Get full text
    Article
  9. 149

    The Effect of Path and Beginning Time of Ascending on Incidence of Acute Mountain Sickness around Mount Damavand in Iran (5671 m) by Reza Alizadeh, Vahid Ziaee, Lotf-Ali Frooghifard, Mohammad-Ali Mansournia, Ziba Aghsaeifard

    Published 2012-01-01
    “…AMS history, AMS history on Damavand, the beginning time of climbing, sleeping at 4200 m altitude, and home altitude had significant effect on AMS incidence, but by multiple logistic regression analysis south route and AMS history on Mount Damavand had positive effect on incidence of AMS (P=0.019 and P<0.001). …”
    Get full text
    Article
  10. 150

    Tropospheric ozone sensing with a differential absorption lidar based on a single CO<sub>2</sub> Raman cell by G. Fan, Y. Fu, J. Huo, Y. Xiang, T. Zhang, T. Zhang, W. Liu, Z. Ning

    Published 2025-01-01
    “…The system could effectively obtain vertical profiles of lower-tropospheric ozone in an altitude range of 0.3 to 4 km with high spatiotemporal resolutions. …”
    Get full text
    Article
  11. 151

    Land use and landscape pattern changes in the Fenhe River Basin, China by Ying Zhao, Bingqing Zhao, Fei Wang

    Published 2025-01-01
    “…Conversely, in the low-altitude plains and urban areas with frequent human activities, SHDI values exceeded 1.0, reaching above 1.5 in urban areas. …”
    Get full text
    Article
  12. 152

    Nonlinear Adaptive Equivalent Control Based on Interconnection Subsystems for Air-Breathing Hypersonic Vehicles by Chaofang Hu, Yanwen Liu

    Published 2013-01-01
    “…The reformulation of the altitude-flight-path angle dynamics and the attack angle-pitch rate dynamics is constructed into interconnection subsystems with input-to-state stability via small-gain theorem. …”
    Get full text
    Article
  13. 153

    Parameter Study on Ultraviolet Rayleigh–Brillouin Doppler Lidar with Dual-Pass Dual Fabry–Perot Interferometer for Accurately Measuring Near-Surface to Lower Stratospheric Wind Fie... by Fahua Shen, Zhifeng Shu, Jihui Dong, Guohua Jin, Liangliang Yang, Zhou Hui, Hua Xu

    Published 2025-01-01
    “…The simulation results show that at an altitude of 0–20 km, within the radial wind speed dynamic range of ±50 m/s, the radial wind speed measurement bias caused by aerosol scattering signal is less than 0.17 m/s in the cloudless region; within the radial wind speed dynamic range of ±30 m/s, the bias is less than 0.44 m/s and 0.91 m/s in the simulated cumulus cloud at 4 km where aerosol backscatter ratio <i>R<sub>β</sub></i> = 3.8 and cirrus cloud at 9 km where <i>R<sub>β</sub></i> = 2.9, respectively; using a laser with a pulse energy of 350 mJ and a repetition frequency of 50 Hz, a 450 mm aperture telescope, setting the detection zenith angle of 30°, vertical resolution of 26 m@0–10 km, 78 m@10–20 km, and 260 m@20–30 km, and a time resolution of 1 min, with the daytime sky background brightness taking 0.3 WSr<sup>−1</sup>m<sup>−2</sup>nm<sup>−1</sup>@355 nm, the radial wind speed measurement errors of the system during the day and night are below 2.9 m/s and 1.6 m/s, respectively, up to 30 km altitude, below 0.28 m/s at 10 km altitude, and below 0.91 m/s at 20 km altitude all day.…”
    Get full text
    Article
  14. 154

    Robust Tracking Control of a Quadrotor UAV Based on Adaptive Sliding Mode Controller by Tianpeng Huang, Deqing Huang, Zhikai Wang, Awais Shah

    Published 2019-01-01
    “…In this paper, a robust adaptive sliding mode control scheme is developed for attitude and altitude tracking of a quadrotor unmanned aerial vehicle (UAV) system under the simultaneous effect of parametric uncertainties and consistent external disturbance. …”
    Get full text
    Article
  15. 155

    Migratory Dates, Breeding Phenology, and Reproductive Success of European Turtle Doves between Lowlands and Highest Breeding Habitats in North Africa by Ismail Mansouri, Mohamed Mounir, Wafae Squalli, Laila Elhanafi, Mohamed Dakki, Lahsen El Ghadraoui

    Published 2020-01-01
    “…The migratory time, breeding chronology, and reproductive success of the European turtle doves (Streptopelia turtur) were studied in Midelt as a high-altitude breeding habitat and Beni Mellal as a low-altitude breeding site from 2015 to 2018 in Morocco. …”
    Get full text
    Article
  16. 156

    The Effect of Land-Use Intensity on Surface Temperature in the Dongting Lake Area, China by Wenmin Hu, Weijun Zhou, Hongshi He

    Published 2015-01-01
    “…Human activities produced larger effects in the western region than in the eastern or central region of the study area, according to the observed variations in the centres of gravity for temperature and land-use intensity. (3) The temperature response to land-use intensity changes was more sensitive in low-altitude areas than in high-altitude areas; the response presented a north-south gradient, possibly due to socioeconomic and urbanisation differences.…”
    Get full text
    Article
  17. 157

    Observed Sprite Streamer Growth Rates by H. C. Stenbaek‐Nielsen, M. G. McHarg, N. Y. Liu

    Published 2025-01-01
    “…Evaluating the field at 70 km altitude, we find fields of 98 (0.45 Ek), 121 (0.56 Ek), and 188 (0.87 Ek) V/m for the 3 sprite types, indicating that jellyfish sprites are the most energetic. …”
    Get full text
    Article
  18. 158

    Altitudinal distribution and habitat use of the common wall lizard Podarcis muralis (Linnaeus, 1768) and the Horvath’s rock lizard Iberolacerta horvathi (Méhely, 1904) in the Kočev... by Anamarija Žagar

    Published 2016-12-01
    “…Both species occurred across the entire altitudinal span but exhibited an opposite pattern of relative abundances and frequencies, which increased with increasing altitude in Horvath’s rock lizard and with decreasing altitude in common wall lizard. …”
    Get full text
    Article
  19. 159

    Interplay between fecundity, sexual and growth selection on the spring phenology of European beech (Fagus sylvatica L.). by Oddou-Muratorio, Sylvie, Bontemps, Aurore, Gauzere, Julie, Klein, Etienne K

    Published 2024-03-01
    “…The respective intensities of directional and stabilizing selection varied with the environment: at low altitude, directional selection for earlier phenology was modulated by strong assortative mating and by an interaction effect between TBB an size on female fecundity, whereas at high altitude, directional selection for earlier phenology was reinforced by selection through male fecundity. …”
    Get full text
    Article
  20. 160

    A Modified Cycle Slip Detection Method with GNSS Doppler Assistance and Optimizing by Adaptive Threshold and Sliding Polynomial Fitting by Kezhao Li, Yunyan Shen, Xiaokui Yue, Yingxiang Jiao, Kai Wang, Zhe Yue, Keke Xu

    Published 2023-01-01
    “…., cycle slips occur in low altitude satellite, low sampling rate of dual-frequency observations. …”
    Get full text
    Article