Results 21 to 30 of about 60,539 (73)
Environmental MicrobiomeThe application of oyster shell has recently been used to increase soil pH in Southern China. However, little is known about causal shifts in the rhizosphere microbial community of pomelo trees, especially in orchards that have experienced natural ...
Yuanyuan Li +6 more
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Frontiers in Environmental Science, 2022 Amur ide (Leuciscus waleckii) lives in alkali-saline water (pH = 9.6) in the Lake Dali and spawns in freshwater rivers after migration annually. During spawning migrations, Amur ide not only experience osmoregulation modification from alkali-saline water
Shuangyi Wang +12 more
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Study of the cooling effect of parallel rectangular ventilation with pores in runway engineering
Discover Applied SciencesThis study addresses the unique challenges of airport runway engineering in permafrost regions, which differ significantly from those of railway and road engineering because of the absence of embankments, wider pavements, shorter lengths, and extensive ...
Xiaolan Liu, Chao Lv, Zefan Li
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Review of boundary model studies in the Venusian and Martian induced magnetosphere
地球与行星物理论评Although Venus and Mars do not have a global magnetic field but have atmospheres and ionospheres. During their coupling with the solar wind, the induced magnetospheres are created, as well as the boundaries of the bow shock and the magnetic pileup ...
Jiaqi Zhang +6 more
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Preparation and Characterization of SiO2/SiCN Core-shell Ceramic Microspheres
Cailiao gongcheng, 2017 The SiO2/PSN core-shell microspheres were prepared via an emulsion reaction combined with the polymer-derived ceramics (PDCs) method using polysilazane (PSN) in situ polymerization on the surface of SiO2 modified by silane coupling agents MPS, followed ...
ZHANG Hai-yuan +3 more
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Dizhen xuebao, 2022 探讨了基于差分进化-人工神经网络构建沉积河谷地震响应代理模型的可行性。首先建立沉积河谷对地震波散射的求解方法，以半圆形、V形沉积河谷为例，以入射波条件、沉积内外介质属性、场地形状为特征参数，以沉积河谷地震动放大系数为预测目标参数，构建数据集；其次，建立沉积河谷地震动放大效应人工神经网络、差分进化-人工神经网络算法预测模型，对比两种算法计算精度和稳定性，并进行了特征参数敏感性分析。结果表明：人工神经网络能较好地预测沉积河谷地震动放大效应，使差分进化-人工神经网络预测模型的精度和稳定性显著提高 ...
Sibo Meng, Jiawei Zhao, Zhongxian Liu
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GNSS–VTEC prediction based on CNN–GRU neural network model during high solar activities
Scientific ReportsTotal electron content (TEC), as a crucial ionospheric parameter, has impacts on electromagnetic wave propagation as well as satellite navigation and positioning, and is of great significance in space weather forecasting.
T. Y. Yang +6 more
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Study on temperature field of parallel perforated ventilation subgrade in the permafrost region
Scientific ReportsRunways in permafrost regions face significant stability challenges due to their flat geometry, wide pavement area, and pronounced heat absorption effects.
Xiaolan Liu +3 more
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Distribution prediction of the habitat of Jingmen tick virus in China
Microbiology SpectrumJingmen tick virus (JMTV) is widely distributed in China, and human cases have been reported. Therefore, the objectives of this study were to understand the distribution of the JMTV in suitable areas in China under the current and projected future ...
Weiyi Li +6 more
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Scattering Characteristics of Targets above a Rough Surface in SAR Images
International Journal of Antennas and Propagation, 2013 The modeling, simulation, and analysis of target characteristics are essential to a synthetic aperture radar (SAR) image-based autotarget recognition (ATR) system.
Bo Zhao, Tie Jun Cui
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