2 August 2012-ZTE Corporation today announced it has won a project to provide UNE with an MF821 LTE Dongle and MF821＋MF20 LTE Wireless Uifi set. UNE is Colombia＇s biggest telecommunications operator. The MF821 LTE ...2 August 2012-ZTE Corporation today announced it has won a project to provide UNE with an MF821 LTE Dongle and MF821＋MF20 LTE Wireless Uifi set. UNE is Colombia＇s biggest telecommunications operator. The MF821 LTE wireless network card supports LTE FDD （100 Mbps download and 50 Mbps upload）. It has a Micro SD slot up for storage of up to 32 GB and supports all major operating systems. MF20 is a new datacard adapter. Its main function is to change datacard access for WiFi coverage. It is portable, battery powered, and can also be used as a wired router.展开更多
By using fixed point index theory of cone mapping and extension method, this paper discusses the existence of multiple positive solution of nonlinear neutral integral equatious modeling infectious disease.
A new limit protection method based on Scheduling Command Governor(SCG) is proposed for imposing multiple constraints on a turbofan engine during acceleration process. A Gain Scheduling Controller(GSC) is designed for...A new limit protection method based on Scheduling Command Governor(SCG) is proposed for imposing multiple constraints on a turbofan engine during acceleration process. A Gain Scheduling Controller(GSC) is designed for the transient state control and its stability proof is developed using Linear Matrix Inequalities(LMIs). The SCG is an add-on control scheme which manages engine limits effectively based on reference trajectory optimization. Unlike the traditional min–max architecture with switching logic, the SCG method utilizes the Linear Parameter Varying(LPV) closed-loop model to form a prediction of future constraint violation and per instant solves a constraint-admissible reference within an approximate Maximal Output Admissible Set(MOAS).The influence of the variation of engine dynamic characteristics and equilibrium points during transient state control is handled by the design of contractive sets. Simulation results on a turbofan engine component-level model show the applicability and effectiveness of the SCG method. Compared to the traditional min–max method, the SCG method has less conservativeness. In addition,the design of contractive sets makes conservativeness tunable.展开更多
文摘2 August 2012-ZTE Corporation today announced it has won a project to provide UNE with an MF821 LTE Dongle and MF821＋MF20 LTE Wireless Uifi set. UNE is Colombia＇s biggest telecommunications operator. The MF821 LTE wireless network card supports LTE FDD （100 Mbps download and 50 Mbps upload）. It has a Micro SD slot up for storage of up to 32 GB and supports all major operating systems. MF20 is a new datacard adapter. Its main function is to change datacard access for WiFi coverage. It is portable, battery powered, and can also be used as a wired router.
文摘By using fixed point index theory of cone mapping and extension method, this paper discusses the existence of multiple positive solution of nonlinear neutral integral equatious modeling infectious disease.
基金supported by National Science and Technology Major Project of China(No.2017-V-0004-0054)。
文摘A new limit protection method based on Scheduling Command Governor(SCG) is proposed for imposing multiple constraints on a turbofan engine during acceleration process. A Gain Scheduling Controller(GSC) is designed for the transient state control and its stability proof is developed using Linear Matrix Inequalities(LMIs). The SCG is an add-on control scheme which manages engine limits effectively based on reference trajectory optimization. Unlike the traditional min–max architecture with switching logic, the SCG method utilizes the Linear Parameter Varying(LPV) closed-loop model to form a prediction of future constraint violation and per instant solves a constraint-admissible reference within an approximate Maximal Output Admissible Set(MOAS).The influence of the variation of engine dynamic characteristics and equilibrium points during transient state control is handled by the design of contractive sets. Simulation results on a turbofan engine component-level model show the applicability and effectiveness of the SCG method. Compared to the traditional min–max method, the SCG method has less conservativeness. In addition,the design of contractive sets makes conservativeness tunable.
