Showing 61 - 80 results of 969 for search '"altitude"', query time: 0.05s Refine Results
  1. 61

    Freeze-Thaw Effects on Stability of Open Pit Slope in High-Altitude and Cold Regions by Yong Hong, Zhushan Shao, Guangbin Shi, Yong Dou, Weiqin Wang, Wen Zhang

    Published 2021-01-01
    “…The cycle of the freeze-thaw action must be taken into account in the stability analysis of an open pit slope in the high-altitude and cold regions, because the natural process of freeze-thaw poses a significant effect on mechanical properties of the rock mass. …”
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    Distributed robust beamforming algorithm for spectral coexistence in satellite and high altitude platform networks by Zining WANG, Min LIN, Fei LI, Lve HAN, Weiping ZHU

    Published 2023-12-01
    “…A distributed robust beamforming (BF) algorithm was proposed to improve spectrum efficiency for an integrated satellite and high altitude platform (HAP) network.Specifically, for the scenario where satellite network and HAP network adopted multicast and NOMA to serve their respective multiple users, an optimization problem was formulated to maximize the sum rate, subject to the rate requirements of both satellite and aerial terminals, and the transmit power budget of satellite and aerial platforms.Then, by considering both the imperfect channel state information (CSI) and the imperfect successive interference cancellation (SIC), S-procedure and sequential convex approximation were adopted to transform the nonconvex problem, and then a distributed BF algorithm using Lagrange duality was proposed to enable the spectral coexistence.Finally, simulation results demonstrate that the proposed algorithm can achieve a similar performance yet at a lower signaling overhead compared with the other existing works.…”
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    Numerical Calculations of Charging Threshold at GEO Altitudes With Two Temperature Non‐Extensive Electrons by Saba Javed, Nazish Rubab, Sadia Zaheer, Stefaan Poedts, Ghulam Jaffer

    Published 2023-10-01
    “…Abstract Surface charging at geosynchronous altitude is one of the major concerns for satellites and spacecrafts. …”
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    Comparative Analysis of miRNA Expression Profiles of Yak Milk-Derived Exosomes at Different Altitudes by Wenwen Ren, Yongfu La, Xiaoming Ma, Xiaoyun Wu, Xian Guo, Min Chu, Ping Yan, Xianyong Lan, Chunnian Liang

    Published 2025-01-01
    “…This study delved into the microRNA expression profiles of yak milk-derived exosomes collected from both high- and low-altitude populations using small RNA sequencing. These miRNAs were found to be implicated in pathways associated with mammary gland inflammation, virus infection regulation, and heat stress response. …”
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  13. 73

    Characteristics and Clinical Course of Adult Inpatients with SARS-CoV-2 Pneumonia at High Altitude by Javier Leonardo Galindo, Juan Ricardo Lutz, María Alejandra Izquierdo, Katherine Parra, Lina María Prieto, Jorge Alberto Carrillo

    Published 2021-01-01
    “…In this study of in-hospital patients with SARS-CoV-2 pneumonia living at high altitude, frequency of death was similar to what has been reported. …”
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  14. 74

    Imaging Tasks Scheduling for High-Altitude Airship in Emergency Condition Based on Energy-Aware Strategy by Li Zhimeng, He Chuan, Qiu Dishan, Liu Jin, Ma Manhao

    Published 2013-01-01
    “…Aiming to the imaging tasks scheduling problem on high-altitude airship in emergency condition, the programming models are constructed by analyzing the main constraints, which take the maximum task benefit and the minimum energy consumption as two optimization objectives. …”
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  15. 75

    Biotransformation of Daidzein, Genistein, and Naringenin by Streptomyces Species Isolated from High-Altitude Soil of Nepal by Lasata Shrestha, Bishnu P. Marasini, Suman Prakash Pradhan, Rajib Kumar Shrestha, Suraj Shrestha, Kamal Prasad Regmi, Bishnu Prasad Pandey

    Published 2021-01-01
    “…The present study investigated the biotransformation potential of Streptomyces species isolated from a high-altitude-soil sample towards selected flavonoid molecules. …”
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  16. 76

    Characteristics of the Bacterial Community in Alpine Meadows in Response to Altitude and Aspect in the Qilian Mountains, Northwest China by Qiang Li, Ying Zhang, Xiaoni Liu, Fan Yang

    Published 2025-01-01
    “…Specifically, the Shannon and Chao1 indices of soil bacteria initially increased and then decreased with increasing altitude, with the Shannon index being lower in shady aspects compared to sunny aspects, and the Chao1 index being lower in sunny aspects above an altitude of 3400 m compared to shady aspects at the exact altitudes. …”
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  17. 77

    The state of lipid metabolism on the background of the use of ω -3 fatty acids in high-altitude conditions by Gulbarchyn Alisherovna Asrankulova, Zhyldyz Akmatovna Makhmudova, Zyinat Samidinovna Boronova, Meerim Taalaibekovna Taalaibekova, Zhyldyz Turusbekovna Ayipova, Unsun Satarkulovna Torobaeva

    Published 2025-01-01
    “…A study of the effect of high altitude (Tuya-Ashu Pass, 3200 m above sea level and Bishkek, 720 m above sea level) on rat metabolism demonstrated significant changes in the lipid profile and oxidative stress levels after three days of exposure to low oxygen availability. …”
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