Results 61 to 70 of about 13,853 (179)
Policy &Internet, Volume 16, Issue 4, Page 727-738, December 2024.ABSTRACT Digital sovereignty unfolds differently and unevenly across geographies. The paper describes and theorizes three models of state digital sovereignty from the Global South—China, India and South Africa—three BRICS member countries that are home to over 1/3 of the world's population.
Min Jiang
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Gaoya dianqi, 2001 本文将分形理论应用于局部放电模式识别 ,从统计图谱中提取分形特征。在局部放电模式试验基础上 ,采用计盒数的分形维数算法 ,从大量的局部放电样本中提取分形网格维数特征参数 ,提高了局部放电模式的准确性。
李剑 +4 more
doaj
The enigmatic life history of the bamboo explained as a strategy to arrest succession
Ecological Monographs, Volume 94, Issue 4, November 2024.Abstract Bamboos are perennial woody grasses that display an enigmatic mix of traits. Bamboo is highly shade intolerant like early‐successional trees. Without secondary xylem, bamboos cannot continue to grow once they reach a maximum height or replace xylem damaged by hydraulic stress and must instead replace each stem after a few years using ...
Aiyu Zheng, Stephen W. Pacala
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Shuitu Baochi Xuebao, 2011 运用土壤粒径质量分布原理与分形理论,研究泥石流频发区蒋家沟3种不同盖度草地土壤粒径分形特征。结果表明:不同盖度草地的土壤粒径分布具有不同的分形特征,其分形维数在2.520 8～2.669 1之间,其关系为:低盖度草地>高盖度草地>中盖度草地 ...
谢贤健, 韦方强
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Compression and simplification of CRM type decomposition map(CRM分解图的压缩及其化简)
Zhejiang Daxue xuebao. Lixue ban, 2006 CRM分解图可以用来指导超大规模集成电路的设计和化简.本文在分析应用CRM分解图进行逻辑函数或-符合式化简的基础上提出了逻辑函数的降维CRM分解图，给出了降维CRM分解图的定义和图形化简方法.实例表明，该图形方法有直观、简单等特点，它能给出逻辑函数的最简或-符合式，使电路实现比传统设计更简单、更有效.
ZHAOMei-ling(赵美玲) +2 more
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Ultrasound in Obstetrics &Gynecology, Volume 64, Issue 5, Page 661-668, November 2024.ABSTRACT Objective To determine the diagnostic accuracy of virtual autopsy using whole‐body postmortem ultra‐high field magnetic resonance imaging (MRI) at 7 Tesla (T), using a short T2‐weighted imaging (T2‐WI) protocol, compared with classical autopsy, for detecting structural abnormalities in small second‐trimester fetuses. Methods Thirty consecutive
A. Staicu +11 more
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Shuitu Baochi Xuebao, 2011 选取14个关中平原高速公路路堤边坡样地,分析了不同植被恢复年限下土壤水稳定性团聚体特征.结果表明:(1)随年限延长,＞1 mm大团聚体表层含量基本大于亚表层含量;＜1 mm团聚体则相反;＜0.25 mm微团聚体含量呈现出先增大后又减小的趋势,而＞5 mm团聚体含量则先减小后增大.(2)研究区阳面边坡分形维数为2.45～2.79,阴面边坡分形维数为2.48～2.70,变化幅度较小;表层分形维数小于亚表层.(3)分形维数与＜0.25 mm团聚体含量显著正相关,与有机质、全氮显著负相关.(4 ...
刘爱霞 +4 more
doaj
Fractal characteristics of spontaneous combustion of gas-bearing coal under different temperature and adsorption pressure conditions [PDF]
The composite disaster of gas and coal spontaneous combustion in the goaf is increasingly becoming the main disaster pattern that restricts the safe production of mines.
Bo TAN +4 more
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, 2015 Author name used in this publication: 吴浩Author name used in this publication: 李岩Author name used in this publication: SHI Wen-zhongAuthor name used in this publication: 陈晓玲Author name used in this publication: 付东杰2013-2014 > Academic research: refereed >
Chen, X, Fu, D, Li, Y, Shi, W, Wu, H
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Integrative Conservation, Volume 3, Issue 3, Page 168-182, September 2024.Using long‐term field data, we examined the impact of severe droughts on the health, reproductive success, and behavior of the critically endangered Verreaux's sifaka (Propithecus verreauxi) in Madagascar's seasonally dry tropical forest. Despite reduced availability of high‐quality foods, sifaka exhibited stable body condition and reproductive success,
Carrie C. Veilleux +2 more
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