A Population Dynamic Model for Facultative Agamosperms

2002 ◽  
Vol 215 (2) ◽  
pp. 253-262 ◽  
Author(s):  
YUU NAKAYAMA ◽  
HIROMI SENO ◽  
HIROYUKI MATSUDA
Keyword(s):  
Dynamic Model ◽  
Population Dynamic ◽  
Population Dynamic Model

A Probabilistic Transmission and Population Dynamic Model to Assess Tuberculosis Infection Risk

Risk Analysis ◽  
2011 ◽  
Vol 32 (8) ◽  
pp. 1420-1432 ◽  
Author(s):  
Chung-Min Liao ◽  
Yi-Hsien Cheng ◽  
Yi-Jun Lin ◽  
Nan-Hung Hsieh ◽  
Tang-Luen Huang ◽  
...  
Keyword(s):  
Dynamic Model ◽  
Population Dynamic ◽  
Infection Risk ◽  
Tuberculosis Infection ◽  
Population Dynamic Model

scholarly journals Neuronal population dynamic model: An analytic approach

2009 ◽  
Vol 19 (9) ◽  
pp. 1159-1163
Author(s):  
Wentao Huang ◽  
Licheng Jiao ◽  
Yuelei Xu ◽  
Shiping Ma ◽  
Jianhua Jia
Keyword(s):  
Dynamic Model ◽  
Population Dynamic ◽  
Neuronal Population ◽  
Analytic Approach ◽  
Population Dynamic Model

scholarly journals Optimal Harvesting for an Age-Spatial-Structured Population Dynamic Model with External Mortality

2012 ◽  
Vol 2012 ◽  
pp. 1-14 ◽  
Author(s):  
Yong Han Kang ◽  
Mi Jin Lee ◽  
Il Hyo Jung
Keyword(s):  
Dynamic Model ◽  
Population Dynamic ◽  
Total Population ◽  
Total Mortality ◽  
Optimal Harvesting ◽  
Uniqueness Of Solutions ◽  
Population Dynamic Model ◽  
Structured Population ◽  
Necessary Conditions For Optimality ◽  
Environmental Causes

We study an optimal harvesting for a nonlinear age-spatial-structured population dynamic model, where the dynamic system contains an external mortality rate depending on the total population size. The total mortality consists of two types: the natural, and external mortality and the external mortality reflects the effects of external environmental causes. We prove the existence and uniqueness of solutions for the population dynamic model. We also derive a sufficient condition for optimal harvesting and some necessary conditions for optimality in an optimal control problem relating to the population dynamic model. The results may be applied to an optimal harvesting for some realistic biological models.

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