Based on the analysis of collective activities of ant colonies, the typicalexample of swarm intelligence, a new approach to construct swarm intelligence basedmulti-agent-system (SMAS) for dynamic real-time scheduling ...Based on the analysis of collective activities of ant colonies, the typicalexample of swarm intelligence, a new approach to construct swarm intelligence basedmulti-agent-system (SMAS) for dynamic real-time scheduling for semiconductor wafer fab is proposed.The relevant algorithm, pheromone-based dynamic real-time scheduling algorithm (PBDR), is given.MIMAC test bed data set mini-fab is used to compare PBDR with FIFO (first in first out),SRPT(shortest remaining processing time) and CR(critical ratio) under three different release rules,i.e. deterministic rule, Poisson rule and CONWIP (constant WIP). It is shown that PBDR is prior toFIFO, SRPT and CR with better performance of cycle time, throughput, and on-time delivery,especially for on-time delivery performance.展开更多
[Objectives] To explore the effects of different pesticides on termite control in four villages of Zhejiang Province. [Methods] Based on the investigation of termite damage to trees in Lijiakeng Village, Longmen Ancie...[Objectives] To explore the effects of different pesticides on termite control in four villages of Zhejiang Province. [Methods] Based on the investigation of termite damage to trees in Lijiakeng Village, Longmen Ancient Town, Luobu Ancient Town and Huanglin Village in Zhejiang Province, the indoor toxicity test of powder and bait was conducted to analyze the termite control effect of different agents. [Results] The experiment showed that 5% Fipronil powder was relatively better than 4.8% Imidacloprid powder, and 1.3% Fipronil was better than 2.5% Hexaflumuron. [Conclusions] It was found that the termite bait station combined with powder spraying and baiting has high social value for termite control in rural areas.展开更多
基金This project is supported by National 973 Project of China (No.2002-CB312202) National Natural Science Foundation of China (No.60374005, No.60104004) Chinese Postdoctoral Fellowship Foundation.
文摘Based on the analysis of collective activities of ant colonies, the typicalexample of swarm intelligence, a new approach to construct swarm intelligence basedmulti-agent-system (SMAS) for dynamic real-time scheduling for semiconductor wafer fab is proposed.The relevant algorithm, pheromone-based dynamic real-time scheduling algorithm (PBDR), is given.MIMAC test bed data set mini-fab is used to compare PBDR with FIFO (first in first out),SRPT(shortest remaining processing time) and CR(critical ratio) under three different release rules,i.e. deterministic rule, Poisson rule and CONWIP (constant WIP). It is shown that PBDR is prior toFIFO, SRPT and CR with better performance of cycle time, throughput, and on-time delivery,especially for on-time delivery performance.
基金Supported by the Soft Science Fund Project of Ningbo Science and Technology Bureau, China (2021R009).
文摘[Objectives] To explore the effects of different pesticides on termite control in four villages of Zhejiang Province. [Methods] Based on the investigation of termite damage to trees in Lijiakeng Village, Longmen Ancient Town, Luobu Ancient Town and Huanglin Village in Zhejiang Province, the indoor toxicity test of powder and bait was conducted to analyze the termite control effect of different agents. [Results] The experiment showed that 5% Fipronil powder was relatively better than 4.8% Imidacloprid powder, and 1.3% Fipronil was better than 2.5% Hexaflumuron. [Conclusions] It was found that the termite bait station combined with powder spraying and baiting has high social value for termite control in rural areas.
