Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Xinyan Ou"'
Publikováno v:
Frontiers in Medicine, Vol 7 (2021)
Background: Influenza was an independent risk factor for invasive pulmonary aspergillosis (IPA). In light of increasing incidence and mortality of influenza associated aspergillosis, our study summarized risk factors, clinical characteristics, and pr
Externí odkaz:
https://doaj.org/article/2372ac2de0274ca584bb61bac3dd268b
Publikováno v:
IEEE Access, Vol 6, Pp 14699-14709 (2018)
In this paper, a manufacturing work cell utilizing gantries to move between machines for loading and unloading materials/parts is considered. The production performance of the gantry work cell highly depends on the gantry movements in real operation.
Externí odkaz:
https://doaj.org/article/e026a721918c4b9d9f116e8eb7804cea
A Method Integrating Q-Learning With Approximate Dynamic Programming for Gantry Work Cell Scheduling
Publikováno v:
IEEE Transactions on Automation Science and Engineering. 18:85-93
This article formulates gantry real-time scheduling in a gantry work cell, where the material transfer is driven by gantries, as a Markov decision process (MDP). Classical learning methods and planning methods for solving the optimization problems in
Publikováno v:
Procedia Manufacturing. 49:2-8
Current enhancement of data availability and cloud technology provide a tremendous opportunity and platform for data-driven modeling and analyses in smart manufacturing. This paper proposes a data analysis framework to diagnose the root causes of fir
Publikováno v:
Frontiers in Medicine, Vol 7 (2021)
Frontiers in Medicine
Frontiers in Medicine
Background: Influenza was an independent risk factor for invasive pulmonary aspergillosis (IPA). In light of increasing incidence and mortality of influenza associated aspergillosis, our study summarized risk factors, clinical characteristics, and pr
Publikováno v:
Journal of Manufacturing Systems. 50:135-145
Considerable amount of energy may be wasted due to idleness or constraints from the interactions between the machines and buffers. To increase profits, it is desired to quickly identify the energy waste and properly manage machine operations for redu
Publikováno v:
Journal of Manufacturing Systems. 50:1-8
In a work cell with material handling gantries, gantry movements constrain the production of the work cell. Due to the fact that the gantry real-time scheduling and the material flow are highly coupled, modeling of the gantry work cell is very challe
Publikováno v:
IEEE Transactions on Automation Science and Engineering. 15:1230-1242
In this paper, the performance of a typical composite work cell structure that includes multiple machines and a material handling gantry is studied. A mathematic model is established to analyze the performance of such gantry systems. Due to the uniqu
Publikováno v:
IEEE Robotics and Automation Letters. 2:1848-1855
For a multi-gantry production system, in which several gantries move among the machines and load/unload parts, the assignment of gantries directly impacts the system performance. Gantry scheduling problem is extremely important, involving when and wh
Publikováno v:
Journal of Manufacturing Systems. 45:212-221
In this paper, a reconfigurable composite work cell with a gantry that is in charge of moving materials/parts from one machine to another is considered. To diagnose the work cell performance, demand dissatisfaction is proposed to evaluate the discrep