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分片代数簇的机械化求解 被引量:1
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作者 刘秀平 王仁宏 《辽宁师范大学学报(自然科学版)》 CAS 2000年第3期230-232,共3页
分片代数曲线、曲面的拼接涉及多元样条函数组的零点问题 .给出了分片多项式的初式、升列、求余公式以及特征列概念 ,应用求代数簇的吴方法 ,讨论求出相应的特征列及相应的特征的零点 ,进而给出一定条件下分片代数簇的机械化求解方法 .
关键词 分片代数法 曲线 曲面 机械求解 求交算法
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基于模糊积分的多载波通信信号盲识别算法 被引量:1
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作者 王涛 耿鹏 《计算机仿真》 北大核心 2021年第6期146-149,159,共5页
针对信号带宽比信道相干带宽大,简单均衡器无法有效消除多径反射干扰,识别效率低的问题,提出基于模糊积分的多载波通信信号盲识别算法。为了使模糊积分具有可列、可加特性,更适用于多载波信号盲识别,给出模糊测度概念,并采用机械求解方... 针对信号带宽比信道相干带宽大,简单均衡器无法有效消除多径反射干扰,识别效率低的问题,提出基于模糊积分的多载波通信信号盲识别算法。为了使模糊积分具有可列、可加特性,更适用于多载波信号盲识别,给出模糊测度概念,并采用机械求解方法简化模糊积分计算过程,提高计算速度。根据多载波中的4种不同信号构造矩阵,通过模糊积分计算出矩阵中的较大非零奇异值个数,按照给出的判定准则即可实现多载波通信信号的盲识别。仿真结果证明,所提方法能够有效识别出多载波内的不同信号,识别效果较好,识别效率较高,具有一定的实际应用价值。 展开更多
关键词 可列可加特性 模糊测度 机械求解 模糊积分计算 非零奇异值
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样条的机械化求解
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作者 施锡泉 刘秀平 于志玲 《Journal of Mathematical Research and Exposition》 CSCD 1997年第1期35-42,共8页
本文在逐次分解法的基础上,给出一种样条机械化求解方法.该方法对多项式样条,有理样条乃至更一般样条的研究都是十分有效的.它适用于三角剖分。
关键词 样条 机械求解 多项式样条 有理样条
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Explaining How: The Intelligibility of Mechanical Explanations in Boyle
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作者 Jan-Erik Jones 《Journal of Philosophy Study》 2012年第5期337-346,共10页
In this paper I examine the following claims by William Eaton in his monograph Boyle on Fire: (i) that Boyle's religious convictions led him to believe that the world was not completely explicable, and this shows ... In this paper I examine the following claims by William Eaton in his monograph Boyle on Fire: (i) that Boyle's religious convictions led him to believe that the world was not completely explicable, and this shows that there is a shortcoming in the power of mechanical explanations; (ii) that mechanical explanations offer only sufficient, not necessary explanations, and this too was taken by Boyle to be a limit in the explanatory power of mechanical explanations; (iii) that the mature Boyle thought that there could be more intelligible explanatory models than mechanism; and (iv) that what Boyle says at any point in his career is incompatible with the statement of Maria Boas-Hall, i.e., that the mechanical hypothesis can explicate all natural phenomena. Since all four of these claims are part of Eaton's developmental argument, my rejection of them will not only show how the particular developmental story Eaton diagnoses is inaccurate, but will also explain what limits there actually are in Boyle's account of the intelligibility of mechanical explanations. My account will also show why important philosophers like Locke and Leibniz should be interested in Boyle's philosophical work. 展开更多
关键词 Robert Boyle William Eaton Maria Boas-Hall mechanism EXPLANATION INTELLIGIBILITY
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