A5066953671- Mathematical and Theoretical Epidemiology and Ecology Models
- Evolution and Genetic Dynamics
- Nonlinear Dynamics and Pattern Formation
- Evolutionary Game Theory and Cooperation
- Mathematical Biology Tumor Growth
- Statistical and numerical algorithms
- Advanced Differential Equations and Dynamical Systems
- Chaos control and synchronization
- Stability and Control of Uncertain Systems
- Water Quality Monitoring and Analysis
- Gene Regulatory Network Analysis
- Wastewater Treatment and Nitrogen Removal
- COVID-19 epidemiological studies
- Complex Systems and Time Series Analysis
- Metaheuristic Optimization Algorithms Research
- Neural Networks and Applications
- Graphene research and applications
- Image and Signal Denoising Methods
- Advanced Mathematical Physics Problems
- Advanced Numerical Analysis Techniques
- Membrane Separation Technologies
- Stability and Controllability of Differential Equations
- Environmental Quality and Pollution
- Navier-Stokes equation solutions
- stochastic dynamics and bifurcation
Anhui University of Science and Technology
2015-2025
Northeastern University
2009-2024
Nanjing University of Information Science and Technology
2024
China Meteorological Administration
2024
SEGi University
2024
Hainan University
2021
China University of Petroleum, East China
2021
Nanjing University of Chinese Medicine
2021
Jiangsu Provincial Academy of Traditional Chinese Medicine
2021
Beijing University of Technology
2019
Typical graphene field-effect transistors (GFETs) show ambipolar conduction that is unfavorable for some electronic applications. In this work, we report on the development of unipolar GFETs. We found titanium oxide situated surface induced significant hole doping. The threshold voltage p-type GFET was tunable by varying density attached through an etching process. An annealing process followed silicon nitride passivation to convert GFETs n-type air-stable complementary inverter integrated...
Backgrounds Diabetic retinopathy (DR), the main retinal vascular complication of DM, is leading cause visual impairment and blindness among working-age people worldwide. The aim this study was to investigate difference plasma metabolic profiles in patients with DR better understand mechanism disease progression. Methods We used ultrahigh-performance liquid Q-Exactive mass spectrometry multivariate statistical analyses conduct a comprehensive analysis metabolites population proliferative...
Understanding the spatiotemporal evolution patterns and drivers of cropping structures is crucial for adjusting structure policies, ensuring sustainability land resources, safeguarding food security. However, existing research lacks sub-pixel scale data on planting structure, where planted area are mainly derived from manual counting results. In this study, remote sensing technology was combined with geostatistical methods to realize crop at scale. Firstly, spatial distribution multiple in...
Abstract. The radiative properties of black carbon (BC) are significantly influenced by its mixing state. single-particle soot photometer (SP2) is a widely recognized instrument for quantifying BC However, the derivation state from SP2 quite challenging. Since records individual particle signals, it requires complex data processing to convert raw signals into size and states. Furthermore, rapid accumulation substantial volumes impedes real-time analysis This study employs Light...
A differential-algebraic model system which considers a prey-predator with stage structure for predator and harvest effort on the mature is proposed. By using bifurcation theories, local stability instability mechanism of proposed are investigated. With purpose stabilizing at positive equilibrium, state feedback controller designed. Finally, numerical simulation carried out to show consistency theoretical analysis illustrate effectiveness controller.
In situ synthesized MWNT–CuS hybrid nanostructures were fabricated into ultrasensitive photodetectors. Upon exposure to light illumination, the devices showed pronounced photocurrent with a response time less than 0.5 s even under zero bias. The mechanism could be attributed fast charge dissociation process at interfaces of MWNTs and CuS nanoparticles due formation Schottky junctions.
Abstract Pure metallic single‐walled carbon nanotubes (m‐SWCNTs) are very desirable for many electrode and interconnecting applications. However, the lack of reliable processing techniques to sort m‐SWCNTs from as‐synthesized SWCNT samples is an obstacle these The effects carbene‐based covalent functionalization on electrical properties isolated m‐SWCNT, a semiconducting (s)‐SWCNT, mixture network both m‐ s‐SWCNTs reported. For first time, semiconducting‐to‐metallic transition upon...
This paper focuses on the global well-posedness and optimal decay estimates to 3D magneto-micropolar equations in Besov spaces. We obtain existence uniqueness of solutions Moreover, are established provided that initial data belongs negative space.
In this paper, two different schemes of impulsive Runge–Kutta methods are constructed for a class linear differential equations with delayed impulses. One scheme is convergent order p if the corresponding method order. Another one in general case only 1, but it more concise and may suit complex Moreover, asymptotical stability conditions exact solution numerical solutions obtained, respectively. Finally, some examples provided to confirm theoretical results.
A differential-algebraic model which discusses a prey-predator system with harvest effort on predator is proposed. By using the theory and bifurcation theory, local stability of proposed around interior equilibrium investigated. The instability mechanism due to variation economic interest harvesting studied. In order stabilize maintain at an ideal level, state feedback controller designed. Finally, numerical simulations are carried out show consistency theoretical analysis.
Nowadays, biological resource in prey-predator ecosystem is commercially harvested and sold with aim of achieving economic interest. Furthermore, harvest effort usually influenced by variation interest harvesting spatial heterogeneous environment. In this paper, a delayed differential-algebraic bio-economic model proposed, which utilized to investigate interaction coexistence mechanism population the due as well change diffusion gestation delay. Local stability analysis proposed without...
A nutrient-phytoplankton-zooplankton model is established, where harvest effort on phytoplankton population and seasonal intrinsic growth of nutrient biomass are considered. Positivity boundedness solutions system studied. By analyzing the characteristic equation linearized corresponding to proposed system, local asymptotic stability around interior equilibrium studied, which reveals that loses its at some critical value predation rate. utilizing Poincaré surface section computation Lyapunov...
The main difficulty posed by the parameter inversion of partial differential equations lies in presence numerous local minima cost function. Inversion fails to converge global minimum point unless initial estimate is close exact solution. Constraints can improve convergence method, but ordinary iterative methods will still become trapped if guess far away from In order overcome this drawback fully, paper designs a homotopy strategy that makes natural use constraints. Furthermore, due...