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正极板严重腐蚀导致起火的铅酸蓄电池解剖研究及故障机理分析
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作者 赖世能 范永聪 +3 位作者 孙文波 李学楠 罗晓君 何国龙 《通信电源技术》 2020年第S01期320-324,共5页
通过对多起蓄电池起火案例进行现场勘察和解剖分析,揭示了蓄电池环境温度长期高温造成蓄电池正极板严重腐蚀、活性物质脱落后,对最终发展为热失控、冒烟起火的演变规律,为蓄电池正极板栅筋条结构设计、减缓蓄电池正极板腐蚀速度,提供了... 通过对多起蓄电池起火案例进行现场勘察和解剖分析,揭示了蓄电池环境温度长期高温造成蓄电池正极板严重腐蚀、活性物质脱落后,对最终发展为热失控、冒烟起火的演变规律,为蓄电池正极板栅筋条结构设计、减缓蓄电池正极板腐蚀速度,提供了参考依据。 展开更多
关键词 铅酸蓄电池 正极板 活性物质、腐蚀 热失控 解剖、机理
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A PTS Optimization Scheme with Superimposed Training for PAPR Reduction in OFDM System
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作者 Renze Luo Rui Li +2 位作者 Xiaoqiong Wu Shuainan Hu Na Niu 《Communications and Network》 2014年第2期97-104,共8页
Partial Transmit Sequences (PTS) is an efficient scheme for Peak-to-Average Power Ratio (PAPR) reduction in Orthogonal Frequency Division Multiplexing (OFDM) system. It does not bring any signal distortion. However, i... Partial Transmit Sequences (PTS) is an efficient scheme for Peak-to-Average Power Ratio (PAPR) reduction in Orthogonal Frequency Division Multiplexing (OFDM) system. It does not bring any signal distortion. However, its remarkable drawback is the high computational complexity. In order to reduce the computational complexity, currently many PTS methods have been proposed but with the cost of the loss of PAPR performance of the system. In this paper, we introduce an improved PTS optimization method with superimposed training. Simulation results show that, compared with conventional PTS, improved PTS scheme can achieve better PAPR performance while be implemented with lower computation complexity of the system. 展开更多
关键词 Orthogonal Frequency DIVISION MULTIPLEXING (OFDM) Peak-to-Average Power Ratio (PAPR) Partial Transmit Sequences (PTS) Superimposed Training
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