云南高校图书馆联盟文献共享服务平台- FRACTAL

FRACTAL: 作品数：974被引量：1491H指数：15; 导出分析报告; 相关领域：理学更多>>; 相关作者：李后强赵华明谢和平盛京邢修三更多>>; 相关机构：中国科学院北京理工大学四川大学武汉大学更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金国家重点基础研究发展计划中国博士后科学基金国家教育部博士点基金更多>>

Qualitative and quantitative characterizations of fracture surfaces of AL6XN super-austenitic stainless steel fatigued at different stress amplitudes被引量：1: 《Progress in Natural Science:Materials International》2012年第1期48-52,共5页Jong-Guk Yun; supported by the National Natural Science Foundation of China(NSFC) under Grant no.51071041;the Specialized Research Fund for the Doctoral Program of Higher Education of China under Grant no.20110042110017;the Fundamental Research Funds for the Central Universities of China under Grant no.N090505001; Fracture surface features of the AL6XN super-austenitic stainless steel fatigued at different stress amplitudes were observed by SEM and quantitatively analyzed by a fractal method.It was found that the morphologies c...; 关键词：AL6XN steel FRACTURE surface FATIGUE life FRACTAL DIMENSION Stress AMPLITUDE

A fractal model for the effective thermal conductivity of nanoparticle suspensions被引量：1: 《Progress in Natural Science:Materials International》2004年第1期36-40,共5页WANGBuxuan ZHOULeping PENGXiaofeng; SupportedbytheNationalNaturalScienceFoundationofChina (GrantNo .5 9995 5 5 0 3 ); Extending the effective medium approximation with the fractal theory for describing nanoparticle clusters and their radius distribution, a predictive model is proposed for the effective thermal conductivity of nanopar...; 关键词：FRACTAL nanoparticle suspension surface adsorption size effect

A note on Whitney's critical sets被引量：1: 《Progress in Natural Science:Materials International》2003年第2期152-156,共5页XILifeng WUMin; Supported by the National Natural Science Foundation of China(Grant No. 10171028);Natural Science Foundation of Zhejiang (No. 101026); The critical arc is an arc which is the critical set for some differentiable function not constant along the arc. In literature on the topic, the differentiable functions are always increasing along the arc, but in th...; 关键词：FRACTAL fractal dimension Whitney's critical set critical arc.

Synthesis of fractal signals with wavelet bases: 《Progress in Natural Science:Materials International》2001年第10期74-78,共5页刘峰刘贵忠张茁生; Project supported by the National Natural Science Foundation of China (Grant No. 69872030), Elitist Young Teacher Foundation of Education Ministry of China (1997) and Shanxi Province Natural Science Foundation(Grant No. 98x08); Based on the characterization of self-similarity, a new model of the fractal signals with discrete wavelet synthetic formula is obtained, and a formula to calculate the time-average spectrum of the signals constructed...; 关键词：self-sbnilarity WAVELET FRACTAL SIGNAL spectrum.

Fractal structures of the non-boundary region of the generalized Mandelbrot set被引量：8: 《Progress in Natural Science:Materials International》2001年第9期55-62,83,共9页王兴元; Project supported by the National Natural Science Foundation of China (Grant No. 69974008), the Postdoctoral Science Foundation of China and the Natural Science Foundation of Liaoning Province (Grant No. 972194).; In order to study the interior structure of the Mandelbrot (M) set, Pickover and Hooper have advanced the epsilon cross method and the star trails method, respectively. In order to reveal the exterior structure of the...; 关键词：GENERALIZED M SET non-boundary region FRACTAL evolution.

Developments in characterization of surface topography of rock joint被引量：6: 《Progress in Natural Science:Materials International》2001年第7期3-11,共9页周宏伟谢和平 M.A.KWASNIEWSKI; Project supported by the National Fund for Distinguished Young Scholars of China (Grant No. 59425003) and the Poland-China Joint Project (Grant No. 263-04).; The approaches to characterizing the surface topography of a rock joint can be simply grouped into statistical approaches and fractal geometrical approaches. This paper reviews the developments in characterization of ...; 关键词：ROCK JOINT surface TOPOGRAPHY FRACTAL geometry.

Hausdorff measure of Sierpinski carpet: 《Progress in Natural Science:Materials International》2001年第5期383-387,共5页王兴华; Project supported by the Special Funds of Major State Basic Research Projects (Grant No. G19990328) and the National Natural Science Foundation of Zhejiang Province (Grant No. 100002).; The estimate of Hausdorff measure H' (F) of Sierpinski carpet F with Hausdorff dimension s =logS/log3 is derived as Hs(F)≤55102s--864855992=1.089147….; 关键词：Sierpinski carpet SELF-SIMILAR FRACTAL Hausdorff measure.

On three open questions proposed by Falconer: 《Progress in Natural Science:Materials International》1999年第3期21-29,共9页梁金荣王晓天任福尧; Project supported by the National Natural Sciece Foundation of China (Grant No 19771023).; The multifractal spectrum of a random self-similar measure is investigated Three questions pro posed by Falconer are answered.; 关键词：statistically SELF-SIMILAR FRACTAL statistically SELF-SIMILAR MEASURE HAUSDORFF dimension.

Recent advances in dielectric breakdown theory of solid insulators: 《Progress in Natural Science:Materials International》1998年第3期2-13,共12页朱鹤孙丁洪志; The phenomenon of dielectric breakdown in solid insulators has wide practical uses. Severaltheories, such as the well-known impact-ionization theory, avalanche theory and charge traptheory, have been proposed for this...; 关键词：DIELECTRIC BREAKDOWN dynamics CONDUCTING MICROCRACK BREAKDOWN LIFETIME FRACTAL behaviour

Modification and generalization of fractal percolation: 《Progress in Natural Science:Materials International》1997年第2期22-28,共7页许勇苏维宜; Project supported by the National Natural Science Foundation of China.; The fractal percolation model is discussed. A modified model M* is set .up under certain conditions, and a smaller critical probability pc is obtained. Finally, a generalization is made by considering the percolation ...; 关键词：FRACTAL PERCOLATION CRITICAL probability.

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