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| 1 | An efficient and fast polarity optimization approach for mixed polarity Reed-Muller logic circuits显示文摘尽管基因算法广泛地在混合极性芦苇思考(MPRM ) 逻辑电路的极性优化被使用了,很少研究考虑了极性变换顺序。以便改进 MPRM 逻辑电路的极性优化的效率,我们就极性变换顺序而言建议一条有效、快的极性优化途径(FPOA ) 。第一,在 FPOA 后面的主要想法是那等评估的极性集合的最好的极性变换顺序被使用建议混合基因算法(HGA ) 获得;第二,每在极性集合的极性根据 HGA 获得的最好的极性变换顺序被变换。我们的建议 FPOA 在 C 被实现,比较分析为 MCNC 基准电路被介绍了。试验性的结果证明为有更多的变量的电路, FPOA 在与极性变换顺序和改进极性优化与启发式的技术接近疏忽的传统的极性优化途径相比改进 MPRM 逻辑电路的极性优化的效率是高度有效的。 | Zhenxue HE Limin XIAO Fei GU Tongsheng XIA Shubin SU Zhisheng HUO Rong ZHANG Longbing ZHANG Li RUAN Xiang WANG | 2017 | Frontiers of Computer Science2017，11，4： | 6 |
| 2 | POA-FPRMs: Power Optimization Approach of Fixed Polarity Reed-Muller Expressions for Incompletely Specified Boolean Functions显示文摘Fixed polarity Reed-Muller(RM)expression(FPRM)has several practical applications due to its multitude of properties.In order to generate an FPRM with minimum power,based on a genetic algorithm,we propose a Power optimization approach(POA-FPRMs)of Fixed Polarity RM expressions for incompletely specified Boolean functions.Simulation results on MCNC benchmark circuits show that POAFPRMs can effectively reduce power,compared with the traditional polarity optimization approach,where the don't care terms are neglected. | HE Zhenxue XIAO Limin HUO Zhisheng WANG Chao LIU Jia WANG Xiang | 2019 | Chinese Journal of Electronics2019，28，6： | 3 |
| 3 | Hundred-Joule-level,nanosecond-pulse Nd:glass laser system with high spatiotemporal beam quality显示文摘A 100-J-level Nd:glass laser system in nanosecond-scale pulse width has been constructed to perform as a standard source of high-fluence-laser science experiments. The laser system, operating with typical pulse durations of 3–5 ns and beam diameter 60 mm, employs a sequence of successive rod amplifiers to achieve 100-J-level energy at 1053 nm at3 ns. The frequency conversion can provide energy of 50-J level at 351 nm. In addition to the high stability of the energy output, the most valuable of the laser system is the high spatiotemporal beam quality of the output, which contains the uniform square pulse waveform, the uniform flat-top spatial fluence distribution and the uniform flat-top wavefront. | Sensen Li Yulei Wang Zhiwei Lu Lei Ding Yi Chen Pengyuan Du Dexin Ba Zhenxing Zheng Xin Wang Hang Yuan Chengyu Zhu Weiming He Dianyang Lin Yongkang Dong Dengwang Zhou Zhenxu Bai Zhaohong Liu Can Cui | 2016 | High Power Laser Science and Engineering2016，4，1： | 3 |
| 4 | EDOA: an efficient delay optimization approach for mixed-polarity Reed-Muller logic circuits under the unit delay model显示文摘Delay optimization has recently attracted signif-icant attention. However, few studies have focused on the delay optimization of mixed-polarity Reed-Muller (MPRM) logic circuits. In this paper, we propose an efficient delay op-timization approach (EDOA) for MPRM logic circuits under the unit delay model, which can derive an optimal MPRM logic circuit with minimum delay. First, the simplest MPRM expression with the fewest number of product terms is ob-tained using a novel Reed-Muller expression simplification approach (RMESA) considering don't-care terms. Second, a minimum delay decomposition approach based on a Huffman tree construction algorithm is utilized on the simplest MPRM expression. Experimental results on MCNC benchmark cir-cuits demonstrate that compared to the Berkeley SIS 1.2 and ABC, the EDOA can significantly reduce delay for most cir-cuits. Furthermore, for a few circuits, while reducing delay, the EDOA incurs an area penalty. | Zhenxue HE Limin XIAO Fei GU Li RUAN Zhisheng HUO Mingzhe LI Mingfa ZHU Longbing ZHANG Rui LIU Xiang WANG | 2019 | Frontiers of Computer Science2019，13，5： | 1 |
| 5 | An Effective Power Optimization Approach Based on Whale Optimization Algorithm with Two-Populations and Mutation Strategies显示文摘Power is an issue that must be considered in the design of logic circuits.Power optimization is a combinatorial optimization problem,since it is necessary to search for a logical expression that consumes the least amount of power from a large number of Reed-Muller(RM)logical expressions.The existing approach for optimizing the power of multi-output mixed polarity RM(MPRM)logic circuits suffer from poor optimization results.To solve this problem,a whale optimization algorithm with two-populations strategy and mutation strategy(TMWOA)is proposed in this paper.The two-populations strategy speeds up the convergence of the algorithm by exchanging information about the two-populations.The mutation strategy enhances the ability of the algorithm to jump out of the local optimal solutions by using the information of the current optimal solution.Based on the TMWOA,we propose a multi-output MPRM logic circuits power optimization approach(TMMPOA).Experiments based on the benchmark circuits of the Microelectronics Center of North Carolina(MCNC)validate the effectiveness and superiority of the proposed TMMPOA. | Juncai HE Zhenxue HE Jia LIU Yan ZHANG Fan ZHANG Fangfang LIANG Tao WANG Limin XIAO Xiang WANG | 2024 | Chinese Journal of Electronics2024，33，2： | 0 |
| 6 | Research on key technologies of edge cache in virtual data space across WAN显示文摘The authors of this paper have previously proposed the global virtual data space system (GVDS) to aggregate the scattered and autonomous storage resources in China’s national supercomputer grid (National Supercomputing Center in Guangzhou, National Supercomputing Center in Jinan, National Supercomputing Center in Changsha, Shanghai Supercomputing Center, and Computer Network Information Center in Chinese Academy of Sciences) into a storage system that spans the wide area network (WAN), which realizes the unified management of global storage resources in China. At present, the GVDS has been successfully deployed in the China National Grid environment. However, when accessing and sharing remote data in the WAN, the GVDS will cause redundant transmission of data and waste a lot of network bandwidth resources. In this paper, we propose an edge cache system as a supplementary system of the GVDS to improve the performance of upper-level applications accessing and sharing remote data. Specifically, we first designs the architecture of the edge cache system, and then study the key technologies of this architecture: the edge cache index mechanism based on double-layer hashing, the edge cache replacement strategy based on the GDSF algorithm, the request routing based on consistent hashing method, and the cluster member maintenance method based on the SWIM protocol. The experimental results show that the edge cache system has successfully implemented the relevant operation functions (read, write, deletion, modification, etc.) and is compatible with the POSIX interface in terms of function. Further, it can greatly reduce the amount of data transmission and increase the data access bandwidth when the accessed file is located at the edge cache system in terms of performance, i.e., its performance is close to the performance of the network file system in the local area network (LAN). | Jiantong HUO Yaowen XU Zhisheng HUO Limin XIAO Zhenxue HE | 2023 | Frontiers of Computer Science2023，17，1： | 0 |
| 7 | Throughput Servicing Time Allocation of Hybrid Storage System Based on Client Grouping Mechanism显示文摘The fair division theory has emerged as a promising approach for the throughput allocation of hybrid storage system. While most of them cause the unfair allocation of the throughput servicing time due to taking no consideration of clients' request IO latencies. We propose one Servicing time allocation method based on the client grouping mechanism(STCG), STCG establishes fair allocation policies based on clients' workload weights,which can achieve a fair throughput servicing time allocation, and can maximize the resource utilization. The experimental result shows that STCG's allocation enjoys fair properties in each client group, and compared with the method proposd recently, STCG can improve the resource utilization about 12%–330%. | HUO Zhisheng XIAO Limin HE Zhenxue RONG Xiaoling | 2019 | Chinese Journal of Electronics2019，28，1： | 0 |
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