A5078546128- Millimeter-Wave Propagation and Modeling
- Power Line Communications and Noise
- Vehicular Ad Hoc Networks (VANETs)
- Soil Carbon and Nitrogen Dynamics
- Advanced MIMO Systems Optimization
- Radio Wave Propagation Studies
- Organic and Molecular Conductors Research
- Autonomous Vehicle Technology and Safety
- UAV Applications and Optimization
- Solid-state spectroscopy and crystallography
- Internet of Things and Social Network Interactions
- Soil and Water Nutrient Dynamics
- Indoor and Outdoor Localization Technologies
- Opportunistic and Delay-Tolerant Networks
- Video Surveillance and Tracking Methods
- Perovskite Materials and Applications
- Advanced Neural Network Applications
- Peatlands and Wetlands Ecology
- Soil erosion and sediment transport
- Satellite Communication Systems
- Clay minerals and soil interactions
- Polymer-Based Agricultural Enhancements
- Traffic control and management
- Telecommunications and Broadcasting Technologies
- Regional Economic and Spatial Analysis
Hainan University
2018-2025
Wuhan University of Technology
2016-2024
Sanya University
2023-2024
Qilu Hospital of Shandong University
2024
Northwest A&F University
2016-2022
Local Initiatives Support Corporation
2020
Advanced Lightweight Engineering (Netherlands)
2019
ORCID
2018
Shandong University of Technology
2014
Hunan Institute of Technology
2014
The quality of unmanned surface vehicle (USV) local path planning directly affects its safety and autonomy performance. USV might easily be trapped into optima. swarm intelligence optimization algorithm is a novel effective method to solve the path-planning problem. Aiming address this problem, hybrid bacterial foraging with simulated annealing mechanism proposed. proposed preserves three-layer nested structure, incorporated outermost dispersal operator. can effectively escape Convention on...
Nano-graphite/Fe3O4 composite (NG/FC) synthesized through deposition–precipitation method, was developed for the removal of methyl violet (MV) from aqueous solution. The parameters including pH, temperature and shaking time on MV efficiency were extensively investigated. adsorption increased smoothly in pH range 2.0–4.0, then remained at a higher level 4.0–10.0, but sharply > 10.0, which demonstrated that affected strongly by pH. On other hand, capacity with rising. equilibrium could be...
In the Loess Hilly Region of China, widespread conversion cropland to forestland and grassland has resulted in great increased organic carbon (C), nitrogen (N) phosphorus (P) stocks shallow soil layers. However, knowledge regarding changes C, N, P deep is still limited. To elucidate responses stoichiometry response land use, from a 0-200 cm profile was collected following three typical use patterns heartland region: forestland, grassland, cropland. Compared with cropland, had improved (SOC)...
To date, most studies have shown that biochar has great potential in carbon sequestration and reduction, as well soil quality improvement. However, there is limited knowledge of its effect on organic (SOC) fractions tropical farmland. This study aimed to determine the impact different types rates applied farmlands so SOC active fractions. The SOC, microbial biomass (MBC), dissolved (DOC), mineralizable (SMC) 0–30 cm layers under rice hull (R) peanut shell (P) treatments were measured....
This paper focuses on vehicle-to-vehicle (V2V) radio channel properties under ramp scenarios with different structures. Ramps are categorized according to construction structures into: 1) viaduct soundproof walls in an urban area and 2) a general without suburban region. Furthermore, considering whether the line of sight is available, entire propagation process signal divided into various zones. Propagation characteristics, including distribution fading, fading depth (FD), level crossing...
Vehicle taillight intention detection is an important application for perception and decision making by intelligent vehicles. However, effectively improving precision with sufficient real-time performance a critical issue in practical applications. In this study, vision-based improved lightweight approach focusing on small object multi-scale strategy proposed to achieve application-oriented vehicle detection. The model designed based YOLOv4-tiny, spatial pyramid pooling fast (SPPF) module...
Real-time detection of vehicle and traffic light is essential for intelligent connected vehicles especially in urban environment. In this paper, a new dataset established real-time model based on You Look Only Once (YOLO) network presented. A joint training method target classification proposed by YOLOv3, aiming to balance the accuracy speed. The YOLOv3 has lower requirements hardware devices than other algorithms like Faster R-CNN. Through experimental analysis measured images environment,...
In this study, radio channel measurements were conducted in an urban inland river environment at 5.9GHz. The consisted of both the line sight (LOS) and non-line (NLOS) cases. We estimate model characteristics based on measured data. For small-scale fading properties, best fit distribution is determined. Statistical models Ricean K-factors Weibull shape parameters are provided. addition, a distance-dependent K-factor for proposed. power delay profile (PDP), we perform cluster identification...
The stoichiometric characteristics of carbon (C), nitrogen (N), and phosphorus (P) in soil can directly reflect the level fertility. In this study, a secondary forest, two kinds plantation forests (Dacrycarpus imbricatus Pinus caribaea Morelet), primary forest tropical areas were selected for sample collection analysis. We found that [leucine aminopeptidase (LAP) + β-N-acetylglucosidase (NAG)]/acid phosphatase (APho) value was less than 1, indicating there P limitation. addition, we also...
Cellular Vehicle-to-Everything (C-V2X) Mode 4, developed by 3GPP, supports vehicle-to-vehicle communication without a cellular base station via LTE sidelink. The messages transmitted in the Internet of Vehicles (IoV) include periodic single-hop broadcast Beacon and multi-hop Emergency triggered events. In this paper, we analyze impact C-V2X 4 on performance propose collision probability models for messages. non-periodicity nature lower latency requirement may cause resource allocation...
In this paper, a propagation path loss model for inland river is proposed by three improvements compared with the Round Earth Loss (REL) open-sea environment. Specifically, parameters optimization uses Okumura-Hata in dB scale to replace equation transformed from free space REL model; secondly, diffraction caused obstacles (e.g., large buildings, bridges, or some other facilities near bank) also taken into account; mixed-path methodology as another improvement used Inland River (IR) because...
This paper reports the results of a car-following measurement wireless propagation channel at 5.9 GHz on seriously congested urban road in Wuhan, China. The small-scale amplitude-fading distribution was determined to be Ricean using Akaike information criterion. result shows that this scenario can regarded as line-of-sight radio channel. Moreover, statistical K -factor features follow Gaussian distribution. According power delay profile and average profile, we found street buildings dense...
Abstract Ridge‐furrow with plastic film mulching (RFPFM) is widely used as a water‐saving strategy for the improvement of crop yield. However, lodging susceptibility under RFPFM practices has not yet been determined. A 2‐yr field study comprising three cultivation strategies (rain‐fed flat planting [FP], RFPFM, and well‐water [WW]) two N application rates (75 225 kg ha –1 ) was conducted to assess risk relationship between resistance grain yields wheat ( Triticum aestivum L.) varieties...
The partial substitution of chemical nitrogen fertilizers with organic fertilizer and slow-release could improve pineapple yield use efficiency (NUE) decrease greenhouse gas (GHG) emissions. However, the effect strategies on carbon footprint (CF), (NF) net ecosystem economic benefits (NEEB) from fields in tropics remains largely unclear. Therefore, we conducted a long-term field trial (2017–2021) for first time five fertilization (CK: no fertilizer; F: conventional fertilization(nitrogen (N)...