A5004206374- Optimization and Search Problems
- Scheduling and Optimization Algorithms
- Advanced Manufacturing and Logistics Optimization
- Mathematical and Theoretical Epidemiology and Ecology Models
- Ecosystem dynamics and resilience
- Evolution and Genetic Dynamics
- Supply Chain and Inventory Management
Northeastern University
2024
Qufu Normal University
2022
In this paper, two prey–predator models with distributed delays are presented based on the growth and loss rates of predator, which much smaller than that prey, leading to a singular perturbation problem. It is obtained Hopf bifurcation can occur, where coexistence equilibrium becomes unstable stable limit cycle. Subsequently, considering parameter [Formula: see text], fact solution crossing transcritical point converges discussed for model Holling type I using linear chain criterion,...
We consider parallel identical machines scheduling problems with deteriorating maintenance activities and the option of job rejection. Each machine has at most one activity. The length each activity increases linearly its starting time. location on needs to be determined. goal is find sequence jobs minimize cost; we further model by allowing A either accepted processed machines, or rejected. determine cost plus total rejection penalty rejected jobs. When makespan, design a pseudo-polynomial...
In this paper, we study the single-machine scheduling problems with DeJong’s learning effect and deteriorating maintenance activity, where is a special position-based duration of activity linear increasing function its starting time. Our goal to determine job sequence all jobs position minimize some performance measures. When measures are makespan total completion time, show that both them can be solved in polynomial measure weighted develop pseudo-polynomial time dynamic programming...