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《文字改革》1985年(1—6期)主要篇目索引
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《语文建设》 1985年第6期63-64,共2页
关键词 指期 尹斌庸 国外来信 注音识字 周有光 科学术语 刘力生 刘泽先 曹澄方 汉语规范化
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《文字改革》1984年(1—6期)主要篇目索引
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《语文建设》 1984年第6期63-64,共2页
关键词 汉语拼音正词法 注音识字 现代汉语 史有为 尹斌庸 审音 周有光 奚博先 语言文字应用 指期
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Exponential Stability of Periodic Solution for Delayed Hopfield Networks
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作者 XIANG Hong-jun WANG Jin-hua 《Chinese Quarterly Journal of Mathematics》 CSCD 北大核心 2008年第2期292-300,共9页
The paper is devoted to periodic attractor of delayed Hopfield neural networks with time-varying. By constructing Lyapunov functionals and using inequality techniques, some new sufficient criteria are obtained to guar... The paper is devoted to periodic attractor of delayed Hopfield neural networks with time-varying. By constructing Lyapunov functionals and using inequality techniques, some new sufficient criteria are obtained to guarantee the existence and global exponential stability of periodic attractor. Our results improve and extend some existing ones in [13-14]. One example is also worked out to demonstrate the advantages of our results. 展开更多
关键词 Hopfield neural networks global exponential stability Lyapunov functional periodic solution
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The Almost Periodic Solution on a Lienard Equation
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作者 ZHUHuan-ran 《Chinese Quarterly Journal of Mathematics》 CSCD 2004年第2期164-171,共8页
By using exponential dichotomies and Liapunov function method, we have studied the existence of almost periodic solutions on a Lienard system and have obtained some simple sufficient condition.
关键词 almost period exponential dichotomies Liapunov function Lienard equation
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Novel criteria for global exponential stability and periodic solutions of delayed Hopfield neural networks
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作者 高潮 《Journal of Chongqing University》 CAS 2003年第1期73-77,共5页
The global exponentially stability and the existence of periodic solutions of a class of Hopfield neural networks with time delays are investigated. By constructing a novel Lyapunov function, new criteria are provided... The global exponentially stability and the existence of periodic solutions of a class of Hopfield neural networks with time delays are investigated. By constructing a novel Lyapunov function, new criteria are provided to guarantee the global exponentially stability of such systems. For the delayed Hopfield neural networks with time-varying external inputs, new criteria are also acquired for the existence and exponentially stability of periodic solutions. The results are generalizations and improvements of some recent achievements reported in the literature on networks with time delays. 展开更多
关键词 Hopfield neural network time delay global exponentially stability periodic solution
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Decoding of uplink control information encoded with placeholders in long term evolution
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作者 王丹 《Journal of Chongqing University》 CAS 2011年第3期133-138,共6页
In 3GPP (the 3rd Generation Partnership Project) LTE (Long Term Evolution) systems,the physical uplink shared channel (PUSCH) conveys uplink control information (UCI) back to eNodeB with or without UL-SCH (uplink shar... In 3GPP (the 3rd Generation Partnership Project) LTE (Long Term Evolution) systems,the physical uplink shared channel (PUSCH) conveys uplink control information (UCI) back to eNodeB with or without UL-SCH (uplink shared channel) data.Placeholders are inserted into the UCI to scramble in a way that maximizes the Euclidean distance of modulation symbols.Considering the attribution of encoding with placeholders,a simple and efficient decoding scheme is proposed in this paper.As shown in our simulation results,improved performance is achieved. 展开更多
关键词 (LTE) physical uplink shared channel (PUSCH)
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乳化炸药线型切割器对薄壳弹药销毁效果的数值模拟研究 被引量:4
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作者 王敏 龙源 +1 位作者 钟明寿 谢兴博 《爆破器材》 CAS 北大核心 2018年第2期39-43,共5页
针对目前的弹药销毁状况,为了减轻直接爆破的环境压力,利用理论分析及数值模拟的方法,首先对设计的简易乳化炸药线型切割器的药型罩材料进行确定,数值模拟表明:铝质药型罩所形成的射流侵彻能力要比紫铜材质的提高28%,而后利用ANSYS数值... 针对目前的弹药销毁状况,为了减轻直接爆破的环境压力,利用理论分析及数值模拟的方法,首先对设计的简易乳化炸药线型切割器的药型罩材料进行确定,数值模拟表明:铝质药型罩所形成的射流侵彻能力要比紫铜材质的提高28%,而后利用ANSYS数值模拟得出该切割器最佳炸高为15 mm。最后对乳化炸药线型切割器切割薄壳弹药的过程进行数值模拟,证明该切割器可以达到切去弹药外壳而不产生剧烈爆轰及高速破片的效果。 展开更多
关键词 聚能射流 切割器设计 冲击起爆 数值模拟
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善于抓住“磨”出来的机会
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作者 谢宏章 《大众理财顾问》 2011年第7期54-55,共2页
"磨蹭期"炒股要诀:买股要有眼力、持股要有耐心、卖股要有胆魄,再辅以"自我双融"、不追涨杀跌、不一卖了之,就能抓住磨出来的机会,进而磨出水平、磨出收益。
关键词 股票 市场分析 市场特点 指期
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