A5030297673- Ionosphere and magnetosphere dynamics
- Earthquake Detection and Analysis
- GNSS positioning and interference
- Solar and Space Plasma Dynamics
- Geomagnetism and Paleomagnetism Studies
- Geophysics and Gravity Measurements
- Advanced Graph Neural Networks
- Topic Modeling
- Traffic control and management
- Heat transfer and supercritical fluids
- Evacuation and Crowd Dynamics
- Subcritical and Supercritical Water Processes
- Fish Ecology and Management Studies
- Aquaculture disease management and microbiota
- Aquaculture Nutrition and Growth
- Elevator Systems and Control
- Bayesian Modeling and Causal Inference
- Metaheuristic Optimization Algorithms Research
- Neural Networks and Applications
- Wind and Air Flow Studies
- Multimodal Machine Learning Applications
- Educational Technology and Assessment
- Advanced Multi-Objective Optimization Algorithms
- Advanced Algorithms and Applications
- Complex Network Analysis Techniques
Ankang City Central Hospital
2025
North China Electric Power University
2013-2024
Chinese Academy of Sciences
2007-2024
Institute of Geology and Geophysics
2007-2024
University of Stuttgart
2020-2024
China Electric Power Research Institute
2024
Nanjing University of Science and Technology
2024
Wuhan Ship Development & Design Institute
2018-2024
First People’s Hospital of Zunyi
2024
Harbin Institute of Technology
2015-2021
Abstract We used dense global navigation satellite system data from China to track the propagation of traveling ionospheric disturbances (TIDs) triggered by 2022 January 15 Tonga volcanic eruption. identified two TIDs originating One, which has been reported widely a number recent investigations, had velocity ∼361 m/s. However, another long‐distance propagating TID with ∼264 m/s not discussed. The velocities these coincide previous simulation results gravity‐wave L0 and L1 modes. propose...
Abstract The application of deep learning in high‐precision ionospheric parameter prediction has become one the focus space weather research. In this study, an improved model called Mixed Convolutional Neural Networks (CNN)—Bi‐Long Short Term Memory is proposed for predicting future Total Electron Content (TEC). trained using longest available (25 years) Global Ionospheric Maps‐TEC and evaluated accuracy storm predictions. results indicate that historical TEC solar‐geographical reference...
Following a period of food deprivation, gibel carp compensated for growth through increased feed intake and conversion efficiency, but efficiency was not achieved by increasing digestibility or reducing activity.
The longest total solar eclipse of this century occurred in East and South Asia on 22 July 2009. was accompanied with a medium magnetic storm, whose main phase onset ∼27 min after the passage Moon's umbral shadow. Using TEC data from 60 GPS stations, we construct differential maps to investigate ionosphere response central China range 26°N–36°N, 108°E–118°E (i.e., latitude 15°N–25°N). During eclipse's totality, “shadow” shown as depletion area formed ∼100 km south path maximum decrease 5...
The global configuration of the geomagnetic field shows that maximum east‐west difference in declination northern middle latitude lies US region (~32°), which produces significant ionospheric coast terms total electron content first revealed by Zhang et al. (2011). For verification, it is valuable to investigate this feature over Far East area, also gradient but smaller (~15°) than US. current study provides evidence longitudinal change supporting thermospheric zonal wind mechanism examining...
Abstract We used a dense GPS network in China to track the ionospheric response waves excited by launch of rocket that carried Shenzhou 10 spacecraft on 11 June 2013. The long‐distance propagation shock and acoustic were observed both sides rocket's trajectory. On southern side, wave structures (characterized horizontal extension ~1400 km initial amplitudes 0.3 total electron content unit (TECU) 0.1 TECU for waves, respectively), traveled southwestward distance ~1500 at mean velocities 1011...
Abstract Seasonal variations of different tides in the mesosphere and lower thermosphere are investigated from wind observations a meteor radar chain on basis Hough mode decomposition. First, observed winds decomposed into (diurnal, semidiurnal, terdiurnal) tidal components. Different seasonal patterns revealed for each component. Pronounced semiannual oscillation (SAO) is presented diurnal component, while latitude‐dependent variation found semidiurnal terdiurnal At low/midlatitude...
Recent knowledge graph (KG) embeddings have been advanced by hyperbolic geometry due to its superior capability for representing hierarchies. The topological structures of real-world KGs, however, are rather heterogeneous, i.e., a KG is composed multiple distinct hierarchies and non-hierarchical structures. Therefore, homogeneous (either Euclidean or hyperbolic) not sufficient fairly such heterogeneous To capture the heterogeneity we present an ultrahyperbolic embedding (UltraE) in (or...
Knowledge graph (KG) alignment is to match entities in different KGs, which important knowledge fusion and integration. Temporal KGs (TKGs) extend traditional Graphs (KGs) by associating static triples with specific timestamps (e.g., temporal scopes or time points). Moreover, open-world (OKGs) are dynamic new emerging timestamps. While entity (EA) between has drawn increasing attention from the research community, EA TKGs OKGs still remains unexplored. In this work, we propose a novel...
[1] We investigate the extreme ionospheric effect during intense solar flare (X17.0/3B) that occurred on 7 September 2005. A strong E region electron density enhancement is observed by incoherent scatter radars at Millstone Hill, Sondrestrom, and Tromsø, as well radio occultation experiment board CHAMP satellite. The observations from both Hill Sondrestrom stations show average percentage enhancements of 17:40–18:10 UT are more than 200% near peak height but only about 10% F height; a...
Abstract This paper describes a comparative study of the climatology large‐scale traveling ionospheric disturbances (LSTIDs) over North America and China based on observations obtained in 2011–2012 using two GPS networks characterized by dense regional coverage. We identified total 390 LSTIDs 363 events America. These can be categorized into three types, namely south, north, westward propagating LSTIDs. The southward show similar diurnal seasonal variations to those geomagnetic disturbances,...
Group elevator scheduling has long been recognized as an important problem for building transportation efficiency, since unsatisfactory service is one of the major complaints tenants. It now a new significance driven by homeland security concerns. The problem, however, difficult because complicated dynamics, uncertain traffic in various patterns, and combinatorial nature discrete optimization. With advent technologies, trend to use advance information collected from devices such destination...
[1] The F3 layer is a common feature within ±10° of the magnetic equatorial ionosphere in daytime. According to Balan et al. (1998) occurs mainly during morning-noon period due combined effect upward E × B drift and neutral wind that provides plasma drifts at above F2 layer. occurrence rate higher summer decreases with increasing solar activity. In this study, characteristic sunset first investigated using cycle ionosonde data (1995–2010) from station Jicamarca, compared features derived...
To demonstrate high‐speed stream effects during the recent deep solar minimum year 2008, we have analyzed manually scaled f o F 2 and h m at Jicamarca total electron content (TEC) in equatorial ionization anomaly (EIA) region over America longitudinal sector. Our results reveal that a prominent 9 day oscillation appears dip equator. The amplitudes of are not always positively correlated with TEC ionosphere, they show nonlinear dependence on intensity geomagnetic disturbances. With outputs...
This paper reports the first results of 2D imaging large‐scale traveling ionospheric disturbances (LSTID) using GPS network data from China, combined with observations these events an ionosonde chain. TEC perturbation maps for North America were also constructed to allow study LSTIDs on a global scale. During medium storm 28 May 2011, onset substorm initiated slow‐speed LSTID over just after midnight. Subsequently, reached China 1.5 hours later, at dusk. A second was observed before...
Abstract According to the Chapman ionization theory, an ionospheric solar flare activity indicator (ISFAI) is given by zenith angle and variation rate of vertical total electron content, which measured from a global network dual‐frequency GPS receivers. The ISFAI utilized statistically analyze responses 1439 M‐class 126 X‐class flares during cycle 23 (1996–2008). statistical results show that occurrence peak increases obviously at 3.2 content unit (TECU)/h (1 TECU = 10 16 el m −2 ) reaches...