Daqing Jiang
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View article: Research on China’s Strategies for Addressing Non-Tariff Barriers and Anti-dumping under the New Trade Protectionism Background <i></i>
Research on China’s Strategies for Addressing Non-Tariff Barriers and Anti-dumping under the New Trade Protectionism Background <i></i> Open
The rise of neo-trade protectionism has reshaped the global trade order, shifting emphasis from traditional tariffs to non-tariff barriers (NTBs) and trade remedies justified on regulatory grounds. This study investigates China’s increasin…
View article: How Did China's Digital Rural Policy Rapidly Diffuse? An Event History Analysis
How Did China's Digital Rural Policy Rapidly Diffuse? An Event History Analysis Open
How to achieve the rapid dissemination of digital rural policies has become an important issue for bridging the digital divide in rural areas and realizing the modernization of agriculture and rural regions. This study adopts a dual perspe…
View article: Stochastic generalized Kolmogorov systems with small diffusion: II. Explicit approximations for periodic solutions in distribution
Stochastic generalized Kolmogorov systems with small diffusion: II. Explicit approximations for periodic solutions in distribution Open
This paper is Part II of a two-part series on coexistence states study in stochastic generalized Kolmogorov systems under small diffusion. Part I provided a complete characterization for approximating invariant probability measures and den…
View article: Dynamics and numerical simulations of a generalized mosquito-borne epidemic model using the Ornstein-Uhlenbeck process: Stability, stationary distribution, and probability density function
Dynamics and numerical simulations of a generalized mosquito-borne epidemic model using the Ornstein-Uhlenbeck process: Stability, stationary distribution, and probability density function Open
In this paper, we proposed a generalized mosquito-borne epidemic model with a general nonlinear incidence rate, which was studied from both deterministic and stochastic insights. In the deterministic model, we proved that the endemic equil…
View article: A stochastic SIHR epidemic model with general population-size dependent contact rate and Ornstein-Uhlenbeck process dynamics analysis
A stochastic SIHR epidemic model with general population-size dependent contact rate and Ornstein-Uhlenbeck process dynamics analysis Open
The purpose of this work is to investigate a novel stochastic SIHR epidemic model, which includes a general incidence rate and mean-reversion Ornstein-Uhlenbeck process. Firstly, the existence of global positivity of the solution is testif…
View article: Dynamical analysis and numerical simulation of a stochastic influenza transmission model with human mobility and Ornstein-Uhlenbeck process
Dynamical analysis and numerical simulation of a stochastic influenza transmission model with human mobility and Ornstein-Uhlenbeck process Open
With the inevitable environmental perturbations and complex population movements, the analysis of troublesome influenza is harder to proceed. Studies about the epidemic mathematical models can not only forecast the development trend of inf…
View article: Study on Dynamic Behavior of a Stochastic Predator–Prey System with Beddington–DeAngelis Functional Response and Regime Switching
Study on Dynamic Behavior of a Stochastic Predator–Prey System with Beddington–DeAngelis Functional Response and Regime Switching Open
In this paper, by introducing environmental white noise and telegraph noise, we proposed a stochastic predator–prey model with the Beddington–DeAngelis type functional response and investigated its dynamical behavior. Persistence and extin…
View article: A viral co-infection model with general infection rate in deterministic and stochastic environments
A viral co-infection model with general infection rate in deterministic and stochastic environments Open
In this paper, we present a model of infection in which a virus can simultaneously infect two types of target cells. The model has a general form of infection rates in deterministic and stochastic settings, incorporating bilinear infection…
View article: A HYBRID SWITCHING S-DI-A EPIDEMIC MODEL WITH STANDARD INCIDENCE: PERSISTENCE, EXTINCTION AND POSITIVE RECURRENCE
A HYBRID SWITCHING S-DI-A EPIDEMIC MODEL WITH STANDARD INCIDENCE: PERSISTENCE, EXTINCTION AND POSITIVE RECURRENCE Open
In this paper, a stochastic S-DI-A epidemic model with standard incidence under Markovian switching is investigated to study the spread of the HIV virus. For this purpose, we firstly obtain sufficient conditions for persistence in the mean…
View article: Threshold Dynamics and the Density Function of the Stochastic Coronavirus Epidemic Model
Threshold Dynamics and the Density Function of the Stochastic Coronavirus Epidemic Model Open
Since November 2019, each country in the world has been affected by COVID-19, which has claimed more than four million lives. As an infectious disease, COVID-19 has a stronger transmission power and faster propagation speed. In fact, envir…
View article: Preparation and Properties of Decellularized Sheep Kidney Derived Matrix Scaffolds
Preparation and Properties of Decellularized Sheep Kidney Derived Matrix Scaffolds Open
Scaffolds from tissues or organs have nanoscale microstructures. Derived matrix scaffolds prepared by decellularized method can provide more cell attachment sites, which is conducive to cell adhesion, proliferation, differentiation and oth…
View article: A Stochastic Turbidostat Model With Ornstein-Uhlenbeck Process: Dynamics Analysis and Numerical Simulations
A Stochastic Turbidostat Model With Ornstein-Uhlenbeck Process: Dynamics Analysis and Numerical Simulations Open
Many turbidostat models are affected by environmental noise due to various complicated and uncertain factors, and Ornstein-Uhlenbeck process is a more effective and precise way. We formulate a stochastic turbidostat system incorporating Or…
View article: The impact of nonlinear perturbation to the dynamics of HIV model
The impact of nonlinear perturbation to the dynamics of HIV model Open
In this paper, we developed and studied a stochastic HIV model with nonlinear perturbation. Through a rigorous analysis, we firstly showed that the solution of the stochastic model is positive and global. Then, by employing suitable stocha…
View article: ANALYSIS OF AUTONOMOUS LOTKA-VOLTERRA SYSTEMS BY LÉVY NOISE
ANALYSIS OF AUTONOMOUS LOTKA-VOLTERRA SYSTEMS BY LÉVY NOISE Open
The present paper deals with the problem of autonomous LotkaVolterra systems by L´evy noise. The essential mathematical features are analyzed with the help of the existence and uniqueness of the positive solution, the pth moment boundednes…
View article: Viral dynamics of a latent HIV infection model with Beddington-DeAngelis incidence function, B-cell immune response and multiple delays
Viral dynamics of a latent HIV infection model with Beddington-DeAngelis incidence function, B-cell immune response and multiple delays Open
In this paper, an HIV infection model with latent infection, Beddington-DeAngelis infection function, B-cell immune response and four time delays is formulated. The well-posedness of the model solution is rigorously derived, and the basic …
View article: Dynamical behavior of a stochastic cholera model with differential infectivity and regime switching
Dynamical behavior of a stochastic cholera model with differential infectivity and regime switching Open
In this paper, we study a stochastic cholera model with differential infectivity which is disturbed by both white noise and telegraph noise. Firstly, we prove that there exists a unique global positive solution to the system with any posit…
View article: Periodic solution and stationary distribution for stochastic predator-prey model with modified Leslie-Gower and Holling type II schemes
Periodic solution and stationary distribution for stochastic predator-prey model with modified Leslie-Gower and Holling type II schemes Open
In this paper, a stochastic predator-prey system with modified Leslie-Gower and Holling type II schemes is studied. For the autonomous case, we prove that the system has a stationary distribution under some parametric restrictions. We also…
View article: DYNAMICS OF A STOCHASTIC CHEMOSTAT COMPETITION MODEL WITH PLASMID-BEARING AND PLASMID-FREE ORGANISMS
DYNAMICS OF A STOCHASTIC CHEMOSTAT COMPETITION MODEL WITH PLASMID-BEARING AND PLASMID-FREE ORGANISMS Open
In this paper, we consider a chemostat model of competition between plasmid-bearing and plasmid-free organisms, perturbed by white noise. Firstly, we prove the existence and uniqueness of the global positive solution. Then by constructing …
View article: Dynamics of a multigroup SIRS epidemic model with random perturbations and varying total population size
Dynamics of a multigroup SIRS epidemic model with random perturbations and varying total population size Open
In this paper, we analyze a multigroup SIRS epidemic model with random perturbations and varying total population size. By utilizing the stochastic Lyapunov function method, we establish sufficient conditions for the existence of a station…
View article: Dynamical behavior of a multigroup SIRS epidemic model with standard incidence rates and Markovian switching
Dynamical behavior of a multigroup SIRS epidemic model with standard incidence rates and Markovian switching Open
In this paper, we consider a multigroup SIRS epidemic model with standard incidence rates and Markovian switching. Firstly, we obtain sufficient conditions for extinction of the diseases. Then we establish sufficient conditions for persist…
View article: DYNAMICAL BEHAVIOR OF A STOCHASTIC FOOD CHAIN CHEMOSTAT MODEL WITH MONOD RESPONSE FUNCTIONS
DYNAMICAL BEHAVIOR OF A STOCHASTIC FOOD CHAIN CHEMOSTAT MODEL WITH MONOD RESPONSE FUNCTIONS Open
This paper studies a food chain chemostat model with Monod response functions, which is perturbed by white noise. Firstly, we prove the existence and uniqueness of the global positive solution. Then sufficient conditions for the existence …
View article: QUALITATIVE ANALYSIS OF STOCHASTIC RATIO-DEPENDENT PREDATOR-PREY SYSTEMS
QUALITATIVE ANALYSIS OF STOCHASTIC RATIO-DEPENDENT PREDATOR-PREY SYSTEMS Open
In this paper, two stochastic ratio-dependent predator-prey systems are considered. One is just with white noise, and the other one is taken into both white noise and color noise account. Sufficient criteria for extinction and persistence …
View article: Dynamical behavior of a stochastic ratio-dependent predator-prey system with Holling type IV functional response
Dynamical behavior of a stochastic ratio-dependent predator-prey system with Holling type IV functional response Open
In this paper, we investigate the dynamical properties of a stochastic ratio-dependent predatorprey system with Holling type IV functional response. The existence of the globally positive solutions to the system with positive initial value…
View article: Difference in pH value and nutrient and bacterial diversity in the Carya cathayensis forest soil under different management models
Difference in pH value and nutrient and bacterial diversity in the Carya cathayensis forest soil under different management models Open
不同经营模式山核桃林地土壤pH值、 养分与细菌多样性的差异张