期刊文献+
共找到7篇文章
< 1 >
每页显示 20 50 100
论“实验——数学方法”
1
作者 冀文瑛 《石家庄学院学报》 1999年第2期55-57,共3页
实验方法、数学方法是物理学研究中最基本的方法。这两种科研方法的结合,即“实验数学方法”经历了逐步形成和发展的过程,在科研中发挥着极其重要的作用。
关键词 实验——数学方法
下载PDF
论近代科学方法的起源与发展 被引量:4
2
作者 李建珊 《广州大学学报(社会科学版)》 2005年第11期13-19,共7页
科学方法是近代科学的产物,但是有其孕育和形成的过程。希腊文化的数学理性、逻辑理性和实验理性在近代初期的结合与相互渗透,导致作为近代科学方法论支柱的实验-数学方法、科学归纳方法和直观-演绎方法的产生。这些直接面对自然的方法... 科学方法是近代科学的产物,但是有其孕育和形成的过程。希腊文化的数学理性、逻辑理性和实验理性在近代初期的结合与相互渗透,导致作为近代科学方法论支柱的实验-数学方法、科学归纳方法和直观-演绎方法的产生。这些直接面对自然的方法既是对希腊文化理性精神的提升,又是对古典自然哲学方法的扬弃。 展开更多
关键词 实验-数学方法 科学归纳方法 直观-演绎方法
下载PDF
数学对科学发展观的“文化”贡献
3
作者 张静远 《科技信息》 2010年第16期62-63,共2页
科学发展观是中国特色社会主义理论体系的重要组成部分,人与自然和谐相处是其一个重要观点。科学的主要任务是实现人对自然的"和谐"认识,数学作为科学的本质,对科学发展观有不可替代的"文化"贡献。
关键词 “和谐”认识 实验数学方法 数学危机
下载PDF
广义Julia分形图对迭代参数依赖性的研究 被引量:2
4
作者 邓珠子 任波 秦宣云 《计算机工程与应用》 CSCD 北大核心 2009年第1期61-62,95,共3页
采用逃逸时间算法对ω∈Z时,参数c与广义Julia分形图之间的关系进行大量实验研究,总结得出当参数ω为奇数,参数c为反共轭时所构造的广义Julia集关于虚轴对称,并进一步对结论进行理论上的证明。
关键词 广义Julia集 迭代参数 逃逸时间算法 实验数学方法
下载PDF
Accurate level set method for simulations of liquid atomization 被引量:4
5
作者 邵长孝 罗坤 +2 位作者 杨建山 陈松 樊建人 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2015年第4期597-604,共8页
Computational fluid dynamics is an efficient numerical approach for spray atomization study, but it is challenging to accurately capture the gas-liquid interface. In this work, an accurate conservative level set metho... Computational fluid dynamics is an efficient numerical approach for spray atomization study, but it is challenging to accurately capture the gas-liquid interface. In this work, an accurate conservative level set method is intro- duced to accurately track the gas-liquid interfaces in liquid atomization. To validate the capability of this method, binary drop collision and drop impacting on liquid film are investigated. The results are in good agreement with experiment observations. In addition, primary atomization (swirling sheet atomization) is studied using this method. To the swirling sheet atomization, it is found that Rayleigh-Taylor instability in the azimuthal direction causes the primary breakup of liquid sheet and complex vortex structures are clustered around the rim of the liq- uid sheet. The effects of central gas velocity and liquid-gas density ratio on atomization are also investigated. This work lays a solid foundation for further studvin~ the mechanism of s^rav atomization. 展开更多
关键词 Computational fluid dynamicsLevel set methodSpray atomizationInterface captureBreakup
下载PDF
MATHEMATICAL DESCRIPTION OF GROWTH OF MULTIPLE ROOT BRANCHING STRUCTURE IN A PLANT
6
作者 ARUN KUMAR 《International Journal of Biomathematics》 2013年第3期1-10,共10页
An existing growth model of Edelstien is extended and modified for multiple root branching structure or root hairs of any plant. Numerical and analytical solutions for the model are developed and compared. In the deri... An existing growth model of Edelstien is extended and modified for multiple root branching structure or root hairs of any plant. Numerical and analytical solutions for the model are developed and compared. In the derivation it is assumed that multiple root branches are attached to the root surface that acts as a continuous source of new tips. The numerical scheme is derived with anticipation of the fact that comparison with experimental data may necessitate a more complicated model. 展开更多
关键词 Uptake parameter asymptotic matching van Genuchten formula relativewater content.
原文传递
Parity Symmetry and Parity Breaking in the Quantum Rabi Model with Addition of Ising Interaction
7
作者 王琼 贺志 姚春梅 《Communications in Theoretical Physics》 SCIE CAS CSCD 2015年第4期510-514,共5页
We explore the possibility to generate new parity symmetry in the quantum Rabi model after a bias is introduced. In contrast to a mathematical treatment in a previous publication [J. Phys. A 46(2013) 265302], we consi... We explore the possibility to generate new parity symmetry in the quantum Rabi model after a bias is introduced. In contrast to a mathematical treatment in a previous publication [J. Phys. A 46(2013) 265302], we consider a physically realistic method by involving an additional spin into the quantum Rabi model to couple with the original spin by an Ising interaction, and then the parity symmetry is broken as well as the scaling behavior of the ground state by introducing a bias. The rule can be found that the parity symmetry is broken by introducing a bias and then restored by adding new degrees of freedom. Experimental feasibility of realizing the models under discussion is investigated. 展开更多
关键词 parity symmetry parity breaking Rabi model scaling behavior
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部