Problem: make a recalibration volume table of a tilted oil tank with a spherical cap and a cylindrical body
Work :
Analyzed and evaluated the performances of the related calculating irregular shape’s volume algorithm in the tilted oil tank scenarios
Established a functional relationship between the tilt angles and oil volume, by proposing an integration mechanism which approximately changed the irregular shape into regular shape
Proposed an algorithm which could determine the tilt angles and get the recalibrated volume table by using the least squares algorithm that firstly searched global region by using Monte Carlo method and then focused on the tilt angles destination by using coordinate rotation algorithm
Problem: design an optimal placement of repeaters based on cellular network
Work:
Proved the cellular shape is the best style to network by comparing its performance against the other polygon networks
Determined the maximum distance between a user and a repeater and between two repeaters and maximum number of channels that a repeater can hold and concluded principles of selecting PL tones
Designed a discrete integer model base on as uniform distribution’s population to determine the minimum number of repeaters and the corresponding placement method by achieving the best of both coverage and channel capacity
Tested the practicability of our models in randomly distributed population, by bringing in two reliable criterion to value the service’s quality our communicating models could provide