Zobrazeno 1 - 10
of 142
pro vyhledávání: '"Jianjun Jiao"'
Publikováno v:
Meitan kexue jishu, Vol 52, Iss S1, Pp 201-210 (2024)
Hetaoyu well field has large production capacity and stable distribution of coal seam, The thick sandstone aquifer of Luohe Formation in the roof of coal seam is the main water-filling aquifer which will result in coal seam roof water damage and th
Externí odkaz:
https://doaj.org/article/852fb75839fd4319a81e9f91011040e1
Publikováno v:
Meikuang Anquan, Vol 54, Iss 9, Pp 112-118 (2023)
In order to study the damage form and mechanism of coal mine roof, the stress distribution state in the stacked beam model was analyzed by using the stacked beam model and introducing the stress potential function; the model was simplified by using h
Externí odkaz:
https://doaj.org/article/8cea55d9d8e14f26992b5644f5b9348f
Publikováno v:
Mathematics, Vol 12, Iss 15, p 2369 (2024)
In this article, we study a predator–prey system, which includes impulsive stocking prey and a nonlinear harvesting predator at different moments. Firstly, we derive a sufficient condition of the global asymptotical stability of the predator–exti
Externí odkaz:
https://doaj.org/article/50dc935288bc47a0a80c8e1331b579fe
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-15 (2023)
Abstract Considering the influence of environmental toxicant on population migration between patches, we propose and study a stochastic impulsive single-species population model with migration driven by environmental toxicant in this paper. We first
Externí odkaz:
https://doaj.org/article/3c9716a1d24d40bca455dc1d3e88ed74
Publikováno v:
Journal of Biological Dynamics, Vol 17, Iss 1 (2023)
In this paper, we formulate a population suppression model and a population replacement model with periodic impulsive releases of Nilaparvata lugens infected with wStri. The conditions for the stability of wild-[Formula: see text]-eradication periodi
Externí odkaz:
https://doaj.org/article/852c4114301e418caadf3515fd04a2fe
Publikováno v:
Mathematics, Vol 11, Iss 18, p 3838 (2023)
In this paper, we establish and study a novel predator–prey model that incorporates: (i) the migration of prey between breeding and non-breeding regions; (ii) the refuge effect of prey; and (iii) the reduction in prey pulse birth rate, in the form
Externí odkaz:
https://doaj.org/article/fc9be97c4a6148eb8fef6a70a850b37a
Publikováno v:
Advances in Difference Equations, Vol 2021, Iss 1, Pp 1-15 (2021)
Abstract In this paper, we consider a new stage-structured population model with transient and nontransient impulsive effects in a polluted environment. By using the theories of impulsive differential equations, we obtain the globally asymptotically
Externí odkaz:
https://doaj.org/article/6f5770e1a9624e47a31052b2143d879a
Publikováno v:
IET Image Processing, Vol 15, Iss 13, Pp 3142-3152 (2021)
Abstract For region growing image segmentation, seed selection and image noise are two major concerns causing negative segmentation performance. This paper proposes a regional growth algorithm based on the Gaussian pyramid (GPRG), which automatically
Externí odkaz:
https://doaj.org/article/3526d9b2299d4a5997f329b5e1362760
Publikováno v:
Mathematics, Vol 11, Iss 14, p 3254 (2023)
Harvesting is one of the ways for humans to realize economic interests, while unrestricted harvesting will lead to the extinction of populations. This paper proposes a predator–prey model with impulsive diffusion and transient/nontransient impulsiv
Externí odkaz:
https://doaj.org/article/624355a23cf64ab5b1bb87a6fc1bccfb
Autor:
Jianjun Jiao, Wenyan Tang
Publikováno v:
Advances in Difference Equations, Vol 2021, Iss 1, Pp 1-16 (2021)
Abstract In this work, we present a lake-eutrophication model with nontransient/transient impulsive dredging and pulse inputting. We obtain globally asymptotically stable conditions for the phytoplankton-extinction periodic solution of system (2.1).
Externí odkaz:
https://doaj.org/article/5add8881759d4b5caecee84b391e2f65