• Publications
  • Influence
Information inaccuracy in inventory systems: stock loss and stockout
TLDR
We demonstrate that even a small rate of stock loss undetected by the information system can lead to inventory inaccuracy that disrupts the replenishment process and creates severe out-of-stock situations. Expand
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Mathematical modeling on obligate mutualism: Interactions between leaf-cutter ants and their fungus garden.
We propose a simple mathematical model by applying Michaelis-Menton equations of enzyme kinetics to study the mutualistic interaction between the leaf cutter ant and its fungus garden at the earlyExpand
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Intense uplift of the Qinghai-Tibetan Plateau triggered rapid diversification of Phyllolobium (Leguminosae) in the Late Cenozoic
Background: Phyllolobium, a recently established genus from subgenus Pogonophace of Astragalus, contains about 20 species and four sections, mostly endemic to the Qinghai-Tibetan Plateau (QTP). TheExpand
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A stochastic SIRS epidemic model with nonlinear incidence rate
TLDR
In this paper, we investigate the global dynamics of a general SIRS epidemic model with a ratio-dependent incidence rate and its corresponding stochastic differential equation version. Expand
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SIS and SIR Epidemic Models Under Virtual Dispersal
We develop a multi-group epidemic framework via virtual dispersal where the risk of infection is a function of the residence time and local environmental risk. This novel approach eliminates the needExpand
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Effects of ionic strength and pH on endotoxin removal efficiency and protein recovery in an affinity chromatography
Abstract In this study endotoxin was removed from hemoglobin preparations using an affinity chromatographic column. The effects of ionic strength and pH on endotoxin removal efficiency and proteinExpand
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Dynamics of a plant–herbivore model
Abstract We formulate a simple host–parasite type model to study the interaction of certain plants and herbivores. Our two-dimensional discrete-time model utilizes leaf and herbivore biomass as stateExpand
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Dynamical Models of Task Organization in Social Insect Colonies
  • Y. Kang, G. Theraulaz
  • Computer Science, Medicine
  • Bulletin of mathematical biology
  • 15 November 2015
TLDR
We propose and study a general modeling framework that includes the following three features: (a) the average internal response threshold for each task (the internal factor); (b) social network communications that could lead to task switching (the environmental factor); and (c) dynamical changes of task demands. Expand
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Complicated endemics of an SIRS model with a generalized incidence under preventive vaccination and treatment controls
Abstract In this paper, we propose and study an SIRS epidemic model that incorporates: a generalized incidence rate function describing mechanisms of the disease transmission; a preventiveExpand
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The complex dynamics of a diffusive prey-predator model with an Allee effect in prey
Abstract This paper investigates complex dynamics of a predator–prey interaction model that incorporates: (a) an Allee effect in prey; (b) the Michaelis–Menten type functional response between preyExpand
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