Showing 1,241 - 1,260 results of 8,139 for search '"elevation"', query time: 0.06s Refine Results
  1. 1241

    Constraints on the Origin of the Martian Dichotomy From Southern Highlands Marsquakes by Weijia Sun, Hrvoje Tkalčić

    Published 2025-01-01
    “…Abstract The Martian hemispheric dichotomy is delineated by significant differences in elevation and crustal thickness between the Northern Lowlands and Southern Highlands. …”
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    Article
  2. 1242

    Anti-fading technology of near space communication based on quasi-constant envelope OFDM by Yang LU, Donglei ZHANG, Tingting WANG

    Published 2019-01-01
    “…For the near space high altitude platform station (HAPS), its limited power, tight spectrum resources, and the multipath fading effects due to non line of sight (NLoS) and low elevation communication environment are the main problems. …”
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    Article
  3. 1243

    Comparing Deep Learning models for mapping rice cultivation area in Bhutan using high-resolution satellite imagery by Biplov Bhandari, Timothy Mayer

    Published 2025-01-01
    “…Four different models per Deep Learning approaches (DNN and U-Net) were trained: (1) Red, Green, Blue, and Near-Infrared (RGBN) channels from Planet, (2) RGBN and Elevation data (RGBNE), (3) RGBN and Sentinel-1 data (RGBNS), and (4) RGBN with Elevation and Sentinel-1 data (RGBNES). …”
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  4. 1244
  5. 1245

    Assessment of ecological asset quality and its drivers in Agro-pastoral Ecotone of China by Wenmin Liu, Zhiyuan Cheng, Jie Li, Guang Li, Ninghui Pan

    Published 2025-01-01
    “…The spatial heterogeneity was obvious, showing a distribution pattern of high in the northeast-southwest and low in the middle, and it was mainly concentrated in the high-elevation zone of 2968–6702 m and the low-elevation zone of −3–785 m. …”
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  6. 1246
  7. 1247

    Research on characterization and modeling for 3D wideband time-varying channels for urban microcells at 2.55 GHz by Shu LI, Xiong-wen ZHAO, Rui ZHANG, Qi WANG, Sui-yan GENG

    Published 2017-10-01
    “…Based on the outdoor microcell MIMO channel measurement campaign at 2.55 GHz,the time-evolution characteristics of three-dimensional wideband channel were studied.The SAGE algorithm was used to extract multipath parameters such as azimuth and elevation angle of departure and arrival.A bidirectional matching algorithm was applied to tracing multipath and the "birth-death" process.The statistical characteristics of multipath birth,lifespan,multipath initial and evolution parameters were analyzed and modeled based on the cross-correlations of multipath parameters.A time-varying channel model with multipath birth-death process was developed.The model parameter table and a detailed flowchart were offered for time-varying channel simulations.The proposed model was validated by comparing the root-mean-square (RMS) of delay spread and angular spread between the simulated and measured results.The channel model proposed can be applied in time-varying channel simulation for urban microcells and it’s also very important to be referred in 5G dynamic channel modeling.…”
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  8. 1248

    Performance of Prestressed Anchor Cables Supporting Deep Foundation Pit of a Subway Station during Spring Thaw by Chuntao Feng, Zhihe Cheng, Lei Zhu

    Published 2022-01-01
    “…The results demonstrated different degrees of elevation of the ground surface at the beginning of the spring thaw depending on whether the ground surface was at 2, 5, or 8 m from the pit excavation surface. …”
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  9. 1249

    Suitability Analysis of Cross-sectional Interpolation for Calculating Water Surface Profile in Mountainous River Channels by CHENG Bei, HU Yuying

    Published 2024-08-01
    “…The results indicate that for mountainous river channels with relatively straight courses and little variation in cross-sectional forms and bed elevations, interpolation calculations can enhance accuracy. …”
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  10. 1250

    Les paons affrontés dans l’art lombard des viii e‑ix e siècles by Raphaël Demès

    Published 2020-12-01
    “…Perceived as a psychopomp since antiquity, the peacock accompanies the spiritual elevation of the faithful and imposes itself as an additional mediator between the earthly and the heavenly. …”
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  11. 1251

    Survival after Consecutive Myocardial Infarction and Stroke: A Case Report by Kristina Ratautė, Greta Burneikaitė, Jolita Badarienė

    Published 2024-05-01
    “…Stroke as a subsequent cardiovascular event after the myocardial infarction significantly decreases the odds of survival for the patient.Clinical case: We report a case of a 48-year-old man admitted to Vilnius University Hospital Santaros Klinikos due to an ST-segment elevation myocardial infarction. Patient also experienced a cardioembolic cerebral infarction on the tenth day in the hospital. …”
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  12. 1252

    Cyclical Changes in Prolactin Levels among Infertile Women Attending University of Port Harcourt Teaching Hospital by Braide A Solomon, Adego O Adebayo, Bamigbowu E Olugbenga

    Published 2013-05-01
    “…Cyclical changes were also observed in prolactin concentration in both fertile and infertile subjects which peaked at midcycle (day14) suggesting that cycle of subjects should be taken into consideration in estimation, interpretation and investigation of infertility while the elevation of prolactin in the 3 study groups might be responsible for the infertility observed. …”
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  13. 1253

    Unified Registration Model for Both Stationary and Mobile 3D Radar Alignment by Lei Chen, G. H. Wang, Ilir F. Progri

    Published 2014-01-01
    “…Attitude biases generated from the errors of the inertial navigation system (INS) of the platform can be converted into equivalent radar measurement errors by three analytical expressions (range, azimuth, and elevation, resp.). These expressions are unique and embody the dependences between the offset and attitude biases. …”
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  14. 1254

    Three-Dimensional Target Localization and Cramér-Rao Bound for Two-Dimensional OFDM-MIMO Radar by Xingxing Li, Dangwei Wang, Xiaoyan Ma

    Published 2017-01-01
    “…To realize joint estimation for range and angle in azimuth and elevation, the range-angle-dependent beam pattern with high range resolution is produced by the OFDM-LFM waveform. …”
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  15. 1255

    Airway Responsiveness: Role of Inflammation, Epithelium Damage and Smooth Muscle Tension by K. I. Gourgoulianis, A. Domali, P. A. Molyvdas

    Published 1999-01-01
    “…At 2.5 g resting tension, the elevation of contraction is about 25% (p<0.01). Consequently, after epithelium loss, the resting tension determines the airway smooth muscles responsiveness. …”
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  16. 1256

    Analysis of flood risk based on WMS model in urban catchment area Case study: Damand basins, Golabdareh and Saadabad, Tehran metropolitan area by amir safari, ali ahmadabadi, zahra sedighifar

    Published 2020-06-01
    “…Hence, in these areas, determination of flood progression and its elevation relative to the surface of the earth, as well as determining the characteristics of the flood during the various return periods, which will be called flood zoning, will be of great importance. …”
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  17. 1257

    Cyclical Changes in Prolactin Levels among Infertile Women Attending University of Port Harcourt Teaching Hospital by Braide A Solomon, Adego O Adebayo, Bamigbowu E Olugbenga

    Published 2013-05-01
    “…Cyclical changes were also observed in prolactin concentration in both fertile and infertile subjects which peaked at midcycle (day14) suggesting that cycle of subjects should be taken into consideration in estimation, interpretation and investigation of infertility while the elevation of prolactin in the 3 study groups might be responsible for the infertility observed. …”
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    Article
  18. 1258

    A Case Report of a Patient with Soaring Clozapine Levels after Developing a Urinary Tract Infection by Adesh Kumar Agrawal, Soumitra Das, Lorenzo Abednego B. Adre, Nakka Raghuma, Sharanya Kaushik, Adarsha Adhikari

    Published 2024-01-01
    “…While we could not definitely explain the mechanism of elevation, we emphasize the importance of monitoring serum clozapine levels and keeping watchful for adverse effects, as well as heightened scrutiny, evaluation for recent infections, and regular monitoring of patients.…”
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    Article
  19. 1259

    Far-Field Antenna Pattern Reconstruction Through Front and Back Planar Near-Field Scanning by Jeong Yun Han, Dal-Jae Yun, Young Dam Kim

    Published 2025-01-01
    “…This paper introduces a method for obtaining the far-field radiation pattern for all elevation angles through planar near-field measurements of both the front and back sides of an antenna under test (AUT). …”
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  20. 1260

    Research progress on coronary slow flow or no-reflow of coronary heart disease undergoing percutaneous coronary intervention surgery by Mengdi Wang, Min Zeng

    Published 2025-01-01
    “…Coronary heart disease (CHD), a prevalent cardiovascular disorder, poses a significant threat to human health.Particularly, ST-segment elevation myocardial infarction (STEMI) is associated with a higher mortality rate.Timely and effective revascularization of the culprit vessels is crucial.Percutaneous coronary intervention (PCI) is a preferred and critical treatment modality for STEMI patients, effectively addressing vascular obstruction.However, a subset of patients experiences coronary slow flow (CSF) or no-reflow (NR) postoperatively, which severely impacts their prognosis.This article provides a comprehensive review of the definition, diagnosis, epidemiology, predictive factors, mechanisms, and treatment of CSF/NR, aiming to offer guidance for the clinical management of these complications following PCI in CHD patients.…”
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