A5102847933- Structural Engineering and Vibration Analysis
- Ocean Waves and Remote Sensing
- Network Traffic and Congestion Control
- Vibration and Dynamic Analysis
- Structural Load-Bearing Analysis
- Coastal and Marine Dynamics
- Energy, Environment, Economic Growth
- Molecular Sensors and Ion Detection
- Innovation Policy and R&D
- Discourse Analysis in Language Studies
- Satellite Communication Systems
- Wireless Communication Networks Research
- Natural Language Processing Techniques
- Wireless Networks and Protocols
- Second Language Acquisition and Learning
- Radioactive element chemistry and processing
- Color perception and design
- Ergonomics and Musculoskeletal Disorders
- Fluid Dynamics and Vibration Analysis
- Mechanical stress and fatigue analysis
- Translation Studies and Practices
- Climate change and permafrost
- Oceanographic and Atmospheric Processes
- Advanced Fiber Optic Sensors
- Soil and Environmental Studies
Hunan Provincial Center for Disease Control and Prevention
2024
Central South University
2022-2024
Second Xiangya Hospital of Central South University
2022-2024
Southern University of Science and Technology
2023-2024
Hong Kong Polytechnic University
2023-2024
Chang'an University
2022-2024
China Academy of Engineering Physics
2024
Pearl River Hydraulic Research Institute
2023
Ministry of Water Resources of the People's Republic of China
2023
Sun Yat-sen University
2022-2023
To investigate whether an early comprehensive pulmonary rehabilitation intervention initiated during hospital admission is safe and effective for patients with acute exacerbation of chronic obstructive disease.
Phytoplankton is an important primary producer of the estuarine ecosystem, which essential for biogeochemical cycle water elements and nutrient transfer. The Pearl River estuary (PRE) a dynamically complex estuary, environment PRE significantly impacted by anthropogenic activities, variation phytoplankton community structure in are complex. This review aims to compare species, species diversity, abundance characteristics from 1980s 2020s, evaluate overall trend PRE, discuss main...
Wireless Local Area Networks (WLANs) based on the IEEE 802.11 technology have become increasingly popular and ubiquitous. The standard allows each station in a WLAN equal opportunity to access wireless channel, which can result unfair sharing of network bandwidth between upstream downstream TCP flows at an AP. In this paper, we propose two different queue management techniques alleviate unfairness problem, with one Selective Packet Marking (SPM), other Least Attained Service (LAS)...
Background and Objective: The 6-min walk test (6MWT) is a common functional assessment test, but adverse events during the can be potentially dangerous lead to serious consequences low quality of life. This study aimed predict occurrence 6MWT, using continuous physiological parameters combined with demographic variables. Methods: 578 patients respiratory disease who had performed standardized 6MWT wearable devices from three hospitals were included in this study. Adverse occurred 73 (12.6%)....
The presence of abrupt depth transitions might trigger strong nonlinear effects on propagating water waves near coastal regions. In this study, the dynamics monochromatic over a submerged step representing are investigated both experimentally and numerically. Within framework free-surface Euler equations, fully potential flow model based conformal mapping method is established to investigate higher harmonics. numerical has been well validated with experimental measurements. To analyze wave...
Introduction The Middle East respiratory syndrome coronavirus (MERS-CoV) and the severe acute 2 (SARS-CoV-2) are two highly contagious coronaviruses causing MERS COVID-19, respectively, without an effective antiviral drug a long-lasting vaccine. Approaches for diagnosis, therapeutics, prevention, etc., particularly SARS-CoV-2 that is continually spreading evolving, urgently needed. Our previous study discovered >60% of sera from convalescent COVID-19 individuals, but <8%...
On the Qinghai–Tibet Plateau area, permafrost and wetlands are interdependent to form a symbiotic system, called (PWs). Due extremely complex hydrothermal conditions, PWs greatly impact road stability. Thus, it is necessary classify in terms of engineering characteristics evaluate their In this study, typical diseases subgrade wetland areas analyzed based on field investigation. Then, type, waterlogged area ratio, meadow development degree used as main indicators for classifying by...
A fractured bolt connecting the bearing and stiffening girder of a half-through steel-arch bridge, with main span length 113 m, which was opened for public in September 1996, found October 2013 during periodic visual inspection. Cracks were also bottom flange near four corners sole plate January 2014, when bolts replaced. In order to assess causes cracks, fatigue failure analysis by dynamic testing monitoring strain conditions, temperature girder, rotation carried out. Additionally,...
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The hydration heat generated during the concreting of cast-in-place piles causes thermal disturbance to surrounding permafrost, leading its thawing. This further affects stability pile foundation and degrades construction progress. To explore influence mechanisms concrete on permafrost temperature field around pile, as well that different seasons pile-side boundary conditions field, monitoring results on-site tests numerical simulation were used analyze distribution law soil in space time,...
Bragg resonance induced by periodic bottoms has potential applications for coastal protection. Under extreme wave conditions, nonlinearity may play a critical role in the wave-topography interactions. It is important to understand nonlinear effects of subject focused group, as representation an transient event. An efficient fully numerical model using conformal mapping method developed simulate interaction problems. Validation this performed against theoretical predictions and experimental...
Abstract Focused wave groups in intermediate water depth propagating over varying abrupt transitions are studied numerically and experimentally. The experiments well validate the fully nonlinear model by a conformal mapping method. generation of second-order third-order harmonics is observed near top submerged step, as decrease main (first-order) components along with step. In addition, an enhancement kurtosis occurs just after step high-trailed profile, revealing considerable asymmetry...
Predicting the near-future delay with accuracy for trains is momentous railway operations and passengers’ traveling experience. This work aims to design prediction models train delays based on Netherlands Railway data. We first develop a chi-square test show that evolution over stations follows first-order Markov chain. then propose model non-homogeneous chains. To deal sparsity of transition matrices chains, we novel matrix recovery approach relies Gaussian kernel density estimation. Our...
Based on the data of strategic emerging firms listed in Chinese A-shares from 2007-2019, this paper uses PSM-DID model to investigate impact combination credit financing and tax incentives policies firms' innovation performance. It is found that policy constructed has a positive performance at high significant level. In addition, by testing separately, it both have effect enterprises.
The primary objective of this paper is to develop a simulation model in OPNET implement direct sequence spread spectrum (DS-SS) code division multiple access (CDMA) system for formation flying satellites. focus and seven-satellite formation, PN generation, spreading despreading. Simulation results are presented.
Two relaxational internal friction peaks in quenched Fe-Al alloys with different Al content have been investigated using a computer-controlled automatic inverted torsion pendulum through free-decay and forced vibration method. It has shown that the two (P1, 180℃ P2, 340℃) appear only heating process do not subsequent in-situ cooling process. is suggested P1 resulted from stress-induced reorientation of di-vacancies, which consists nearest neighbour Fe-vacancies on α β (or γ) sublattice...