Results 11 to 20 of about 43,049 (265)
Dizhen xuebao, 2020 基于2018年8月5日印度尼西亚地震震中（116.45°E，8.33°S）附近的澳大利亚达尔文站和位于震中磁力线共轭区域的武汉站的电离层测高仪观测数据，以及相同区域全球卫星导航系统接收机的观测数据，对该地震震前的电离层异常扰动特征进行了分析。结果显示，震前同时观测到了电离层F2层临界频率（foF2）和总电子含量（TEC）时间序列的异常。基于岩石圈-大气层-电离层直流电场耦合模式和美国国家大气研究中心的热层-电离层环流耦合模式（NCAR/HAO TIEGCM ...
Zhuangkai Wang +4 more
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Journal of Space Weather and Space Climate, 2023 Distributed arrays of ground-based instruments can help advance observations and improve understanding of space weather. The implementation of an array of sensors can be constrained, however, by the high cost of commercial instruments and the ...
Wright Isaac G. +4 more
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Bessel’s method in study of solar eclipse influence on the ionosphere
Вісник Харківського національногоуніверситету імені В.Н. Каразіна. Серія: Радіофізика та електроніка, 2023 Relevance. A solar eclipse is a global disturbing factor that significantly changes the characteristics of the ionosphere. As is known, the ionosphere affects the propagation of radio waves of all ranges, that is, it affects the operation of navigation ...
Yu. B. Mylovanov, V. L. Dorokhov
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Improving word embeddings in Portuguese: increasing accuracy while reducing the size of the corpus [PDF]
PeerJ Computer Science, 2022 The subjectiveness of multimedia content description has a strong negative impact on tag-based information retrieval. In our work, we propose enhancing available descriptions by adding semantically related tags. To cope with this objective, we use a word
José Pedro Pinto +3 more
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CATION SELECTIVITY OF VERTISOLS [PDF]
Mesopotamia Journal of Agriculture, 2019 The effect of salinity and SAR on Gapon selectivity coefficient of two Vertisols , collected from Duhok Governorate in northern Iraq(Summel and Zakho) classified taxonomically as (fine clay-smectitic-calcareous-cracked soils), were studied in a ...
Amer Abdul-Kareem
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Evaluation of Hands-Free VR Interaction Methods During a Fitts’ Task: Efficiency and Effectiveness
IEEE Access, 2023 Currently, it is standard to use tracked handheld controllers for interaction in immersive virtual reality (VR). However, since VR interactions are becoming more natural with hand tracking, it is important to provide hands-free alternatives for selection
Pedro Monteiro +4 more
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Privacy-Preserving Machine Learning on Apache Spark
IEEE Access, 2023 The adoption of third-party machine learning (ML) cloud services is highly dependent on the security guarantees and the performance penalty they incur on workloads for model training and inference.
Claudia V. Brito +4 more
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Remote Sensing, 2020 Typhoons often occur and may cause huge loss of life and damage of infrastructures, but they are still difficult to precisely monitor and predict by traditional in-situ measurements.
Yiduo Wen, Shuanggen Jin
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Numerical and experimental analysis of thermal penetration depth in bare reinforced concrete structures during fire accidents [PDF]
E3S Web of Conferences, 2020 This work faces the problem of fire resistance and temperature penetration depth in reinforced concrete under construction subjected to fire. Indeed, the design approaches always neglect the fire-induced effects on the structures under construction.
Tagliafico Luca Antonio +5 more
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Revista Electrónica de AnestesiaR, 2019 Acercarnos a un respirador anestésico (o bien, a una estación de trabajo para los más finos) es acercarnos a una maquinaria relativamente reciente. Y a pesar de que los actuales modelos se presentan con diseños futuristas, mostrando variedad de pantallas
Alberto Gironés Muriel
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