期刊文献+
共找到3篇文章
< 1 >
每页显示 20 50 100
建筑物的耐久性与不关联数(英文)
1
作者 卡利杨.查克拉波尔迪 金光滋 +1 位作者 片山葉子 新田悠贵 《商洛学院学报》 2010年第2期3-11,共9页
以《黄金率与五重对称》为开端,《物体的形状与黄金率》进一步阐述了现实生活中多边形结构占主要形式的理由(层次结构定理),如,黄金率出现在许多建筑物和绘画作品中(美学定理)等。本文是前述研究的延续,目的在于揭示关于金字塔和其他神... 以《黄金率与五重对称》为开端,《物体的形状与黄金率》进一步阐述了现实生活中多边形结构占主要形式的理由(层次结构定理),如,黄金率出现在许多建筑物和绘画作品中(美学定理)等。本文是前述研究的延续,目的在于揭示关于金字塔和其他神圣建筑物数据方面的许多错误推测。这里我们以同样的思想来诠释关于或者黄金率或者等极其美好的数据的错误推测。研究的成功在于仔细探求了许多金字塔的数据,而不只是研究最大的一个金字塔的数据。前半部分是不关联数,后半部分我们致力于二次域上的黄金分割率,并以一种简单易懂的方式,给出了许多代数数论中的记号和结果。我们认为读者具备(代数)数论的初步知识。有关这方面的详细内容,读者可参阅即将出版的书《数论与代数》。 展开更多
关键词 黄金率 金字塔 二次域 伽罗华群 不关联数
下载PDF
The Association between Lifestyle, Anthropometric Measurements, and Obesity in University Students
2
作者 Asmaa F. Hamouda 《Journal of Pharmacy and Pharmacology》 2016年第3期119-127,共9页
Nutritional Assessment is the process of identifying characteristics known to associated with nutrition problems. Certain foods with chemical additives disguised as food can cause muscle and joint pain associated with... Nutritional Assessment is the process of identifying characteristics known to associated with nutrition problems. Certain foods with chemical additives disguised as food can cause muscle and joint pain associated with arthritis, gout, fibromyalgia, obesity, cancer and others. Avoiding these foods can reduced inflammation, thus prevent obesity, cancer, and another disease. The target of the study was to find a relation between food type, anthropometric parameters and obesity-related diseases for university students in CoUege-Al Leith-Umm al-Qura University, Saudi Arabia. The purpose is to identify populations (100 subjects women, aged: 17-30 year, using questionnaire) who are malnourished or at nutritional risk. Participants were divided into normal-weight and obese groups. The different methods are used to collect data including: 1. Anthropometric, 2. Dietary: Nutritional History (Current Intake), 3. FFQ (Food frequency questionnaire). There is a significant association between certain food type, anthropometric parameters, obesity as well as other diseases including (vitamin D deficiency, kidney problems, bone pain, general weakness, thyroid problems, infertility. 展开更多
关键词 Nutritional assessment OBESITY anthropometric parameters.
下载PDF
Comultiplications on a wedge of two spheres 被引量:1
3
作者 ARKOWITZ Martin LEE Dae-Woong 《Science China Mathematics》 SCIE 2011年第1期9-22,共14页
In this paper we study the set of comultiplications on a wedge of two spheres. We are primarily interested in the size of this set and properties of the comultiplications such as associativity and commutativity. Our m... In this paper we study the set of comultiplications on a wedge of two spheres. We are primarily interested in the size of this set and properties of the comultiplications such as associativity and commutativity. Our methods involve Whitehead products in wedges of spheres and the Hopf-Hilton invariants. We apply our results to specific examples and determine the number of comultiplications, associative comultiplications and commutative comultiplications in these cases. 展开更多
关键词 co-H-spaces comultiplications homotopy associativity homotopy commutativity basic Whitehead products Hilton’s formula Hopf-Hilton invariants
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部