Farnesene monomer,obtained through the bio-fermentation,offered a unique long side chain structure that served as an excellent platform for the synthesis of“bottlebrush-like”polymers with exceptional thermal propert...Farnesene monomer,obtained through the bio-fermentation,offered a unique long side chain structure that served as an excellent platform for the synthesis of“bottlebrush-like”polymers with exceptional thermal properties.Such polymers had immense potential in the production of polyurethane elastomers and adhesives.Hydroxyl-terminated polyfarnesene(PFD),which was safe,environmentally-friendly and pollution-free,was synthesized with farnesene as the monomer and industrial grade product hydrogen peroxide as the initiator by aqueous free-radical polymerization.展开更多
The inter-domain and intra-domain routings are treated jointly with dynamically distributed algorithms in automatically switched optical networks （ASON） based on source routing. The proposed algorithms are discussed...The inter-domain and intra-domain routings are treated jointly with dynamically distributed algorithms in automatically switched optical networks （ASON） based on source routing. The proposed algorithms are discussed through numerical calculations. The routing loops can be avoided efficiently and the inter-domain signaling complexity is reduced significantly. The performance of the blocking probability is also improved.展开更多
We study the two-dimensional traffic of cellular automata using computer simulation. We propose two type of decentralized cooperation strategies, which are called stepping aside (CS-SA) and choosing alternative routes...We study the two-dimensional traffic of cellular automata using computer simulation. We propose two type of decentralized cooperation strategies, which are called stepping aside (CS-SA) and choosing alternative routes (CS-CAR) respectively. We introduce them into an existing two-dimensional cellular automata (CA) model. CS-SA is designed to prohibit a kind of ping-pong jump when two objects standing together try to move in opposite directions. CS-CAR is designed to change the solution of conflict in parallel update. CS-CAR encourages the objects involved in parallel conflicts choose their alternative routes instead of waiting. We also combine the two cooperation strategies (CS-SA-CAR) to test their combined effects. It is found that the system keeps on a partial jam phase with nonzero velocity and flow until the density reaches one. The ratios of the ping-pong jump and the waiting objects involved in conflict are decreased obviously, especially at the free phase. And the average flow is improved by the three cooperation strategies. Although the average travel time is lengthened a bit by CS-CAR, it is shorten by CS-SA and CS-SA-CAR. In addition, we discuss the advantage and applicability of decentralized cooperation modeling.展开更多
基金Supported by National Natural Science Foundation of China(52403096).
文摘Farnesene monomer,obtained through the bio-fermentation,offered a unique long side chain structure that served as an excellent platform for the synthesis of“bottlebrush-like”polymers with exceptional thermal properties.Such polymers had immense potential in the production of polyurethane elastomers and adhesives.Hydroxyl-terminated polyfarnesene(PFD),which was safe,environmentally-friendly and pollution-free,was synthesized with farnesene as the monomer and industrial grade product hydrogen peroxide as the initiator by aqueous free-radical polymerization.
基金Supported by the National Natural Science Foundation of China （No. 60372096）, the Program for Century Excellent Talents in University （No. NCET- 05-0112） and the High Technology Research and Development Program of China （No. 2006AA01Z246）.
文摘The inter-domain and intra-domain routings are treated jointly with dynamically distributed algorithms in automatically switched optical networks （ASON） based on source routing. The proposed algorithms are discussed through numerical calculations. The routing loops can be avoided efficiently and the inter-domain signaling complexity is reduced significantly. The performance of the blocking probability is also improved.
基金Supported by the National Natural Science Foundation of China under Grant No. 61103093the National High-Tech Research and Development Plan of China (863) under Grant No. 2011AA010502
文摘We study the two-dimensional traffic of cellular automata using computer simulation. We propose two type of decentralized cooperation strategies, which are called stepping aside (CS-SA) and choosing alternative routes (CS-CAR) respectively. We introduce them into an existing two-dimensional cellular automata (CA) model. CS-SA is designed to prohibit a kind of ping-pong jump when two objects standing together try to move in opposite directions. CS-CAR is designed to change the solution of conflict in parallel update. CS-CAR encourages the objects involved in parallel conflicts choose their alternative routes instead of waiting. We also combine the two cooperation strategies (CS-SA-CAR) to test their combined effects. It is found that the system keeps on a partial jam phase with nonzero velocity and flow until the density reaches one. The ratios of the ping-pong jump and the waiting objects involved in conflict are decreased obviously, especially at the free phase. And the average flow is improved by the three cooperation strategies. Although the average travel time is lengthened a bit by CS-CAR, it is shorten by CS-SA and CS-SA-CAR. In addition, we discuss the advantage and applicability of decentralized cooperation modeling.
