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Arbitrary Rectilinear Block Packing Based on Less Flexibility First Principles
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作者 杨中 董社勤 +1 位作者 洪先龙 吴有亮 《Journal of Semiconductors》 EI CAS CSCD 北大核心 2004年第11期1416-1422,共7页
The definition and formula of flexibility of arbitrary rectilinear blocks are introduced and LFF principles are extended to handle arbitrary rectilinear blocks and blocks with relative constraints.The experimental res... The definition and formula of flexibility of arbitrary rectilinear blocks are introduced and LFF principles are extended to handle arbitrary rectilinear blocks and blocks with relative constraints.The experimental results demonstrate the efficiency and effectiveness of the proposed method. 展开更多
关键词 LFF principles rectilinear block packing deterministic placement algorithm
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Large Scale VLSI Module Placement Using LFF Heuristics by Stages
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作者 魏少俊 董社勤 +1 位作者 洪先龙 吴有亮 《Journal of Semiconductors》 EI CAS CSCD 北大核心 2006年第5期812-818,共7页
We present a deterministic algorithm for large-scale VLSI module placement. Following the less flexibility first (LFF) principle,we simulate a manual packing process in which the concept of placement by stages is in... We present a deterministic algorithm for large-scale VLSI module placement. Following the less flexibility first (LFF) principle,we simulate a manual packing process in which the concept of placement by stages is introduced to reduce the overall evaluation complexity. The complexity of the proposed algorithm is (N1 + N2 ) × O( n^2 ) + N3× O(n^4lgn) ,where N1, N2 ,and N3 denote the number of modules in each stage, N1 + N2 + N3 = n, and N3〈〈 n. This complexity is much less than the original time complexity of O(n^5lgn). Experimental results indicate that this approach is quite promising. 展开更多
关键词 FLOORPLANNING placements large scale LFF principle deterministic placement algorithm
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“小康电”照亮乡村蝶变之路
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作者 张善伟 《中国电力企业管理》 2019年第9期48-49,共2页
结合当地“小康电”项目建设,国网五莲县供电公司抓住机遇,创新管理模式,精准定位服务需求,在完成新旧电网更换、线路基建等本职任务的基础上,助力当地居民脱贫致富,为地区经济发展跃进做出了贡献。
关键词 山东省 局确定 项目 五莲县 示范县 线路 建设
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GLOBAL ASYMPTOTIC REGULATION CONTROL FOR NONLINEAR SYSTEMS WITH iISS INVERSE DYNAMICS
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作者 Jiangbo YU Yuqiang WU 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2012年第2期249-261,共13页
This paper investigates a global asymptotic regulation control problem for a class of nonlinear systems with dynamic uncertainties.The requirement of a priori knowledge of control directions is removed and the inverse... This paper investigates a global asymptotic regulation control problem for a class of nonlinear systems with dynamic uncertainties.The requirement of a priori knowledge of control directions is removed and the inverse dynamics satisfy the weaker integral input-to-state stable condition.By application of the changing supply rates and the Nussbaum-type gain techniques,a partial state-feedback regulator is constructed.The main results demonstrate that the designed controller ensures the system state converges to the origin whereas the other signals of the closed-loop system are bounded. Simulation results are illustrated to show the effectiveness of the proposed approach. 展开更多
关键词 Changing supply rates input-to-state stable (ISS) integral input-to-state stable (iISS) Nussbaum-type gain unknown control directions.
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