共查询到18条相似文献,搜索用时 58 毫秒
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《数学的实践与认识》2015,(14)
<正>2014年12月13日在天津大学隆重举行的第十一届"华为杯"全国研究生数学建模竞赛颁奖大会标志着2014年研究生数学建模竞赛成功地落下帷幕.在竞赛的主办单位教育部学位与研究生教育发展中心的领导下和竞赛承办单位一天津大学的精心组织下,2014年的竞赛,共有30个省(市、自治区)的371所高校、研究所的4900队、14700名研究生,(其中包括691名博士生)参赛,规模空前.十一年来全国研究生数学建模竞赛不断发展壮大的事实说明在培养研究生创新能力、解决实际问题能力和团队意识方面研究生数学建模活动确实发挥了积极的作用,深受广大研究生欢迎,成效是显著的. 相似文献
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本文论述了数学直观及其在数学建模过程中的重要意义 ,分析了以往数学建模竞赛的几个实例 ,说明了数学直观在数学建模过程中是如何创造并发挥作用的 .探讨了数学直观的本质以及对学生数学直观的培养方法 相似文献
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大学生数学建模竞赛的独特魅力 总被引:7,自引:0,他引:7
大学生数学建模竞赛之所以在我国蓬勃发展 ,原因在于大学生数学建模竞赛是一项具有挑战性的开放的应用数学及计算机技术解决实际问题的综合性活动 ,有利于我们急需的创造性人才的培养 ,符合以人为本的社会发展理念 . 相似文献
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在数学建模过程中要用实际的眼光分析问题,结合实际解决问题。数学建模竞赛的第一步破题,就充分体现了这个思想。 相似文献
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陈伟 《数学的实践与认识》2005,35(4):1-5
主要讨论模糊数学在数学建模课程和数学建模竞赛中的应用问题.在数学建模中应当引进模糊数学方法,可以得到一些计算较为简单,更符合实际情况的数学模型. 相似文献
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朱道元 《数学的实践与认识》2008,38(14)
全国研究生数学建模竞赛一贯努力遵循"为提高研究生的培养质量,推动研究生教学的改革,培养研究生的创新精神与团队合作精神"的宗旨在近几年取得了长足的进步.2007年第四届全国研究生数学建模竞赛承办单位北京航空航天大学对竞赛组织工作非常重视,努力认真地工作,使竞赛有了新的突破,迈上了新的台阶,进一步获得国务院学位办公室的大力支持和全国各研究生培养单位和广大研究生的积极参与. 相似文献
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Andrew W. Spisak 《CHANCE》2013,26(2):36-41
Abstract The Clustered World: How We Live, What We Buy, and What It All Means About Who We Are by Michael Weiss, Boston, Little Brown, &; Company, 1999, 323 pages. Reviewed by Jennifer Schumi 相似文献
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Regression and functional models of the main electrodynamic parameters for a family of balanced wire dipole antennas having arms similarly to the Koch first-order pre-fractal are developed. Each dipole differs from the remaining dipoles only in coordinates of the central vertices of arms. Conclusions on an influence of the wire’s diameter of the antenna on characteristics of the antenna are drawn. It is shown that a connection of electrodynamic parameters with the geometry of the antenna increases with an increase in the order of the pre-fractal. Algorithms for developing the antennas having preset characteristics are described. Examples describing an application of the algorithms to the modeling of the well matched Koch-type antennas to achieve some desired characteristics are provided. 相似文献
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Harold Paredes-Frigolett Pablo Nachar-Calderón Carmen Marcuello 《Computational & Mathematical Organization Theory》2017,23(1):122-166
Most studies of cooperative firms have been conducted using neoclassically inspired economic models that consider the characteristics and behavior of capitalist companies and their owners, thus failing to accommodate the wide range of criteria that motivate the creation of cooperative firms. These models have traditionally been at odds with the real objectives of cooperative firms due to their inability to accommodate a series of often conflicting criteria. We put forth a set-theoretic model of governance of cooperative firms that allows us to investigate how different models of cooperative governance can be implemented and how cooperative decision-making can be solved using a multicriteria decision analysis approach. 相似文献
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Modeling of the voltage-controlled friction effect 总被引:3,自引:0,他引:3
Abtract A phenomenological model of the dependence of friction coefficient on external voltage is proposed based on experimental results
of friction and electric current of three different tri-bopairs, Si3N4-ball/steel-disc, Si3N4-ball/brass-disc and SiO2-ball/steel-disc, lubricated with zinc strearate suspension. It was found that the variation of friction coefficient correlates
with the variation of electric current for all of the three tribopairs. The change in electric current is considered to be
caused by the rate of electrochemical reactions occurring on the rubbing surface. By taking the electrochemical reaction into
account in the total energy consumption, an expression for describing the relationship between the rates of friction coefficient
and electric current is derived, and the constants included in the expression are determined through curve fitting of experimental
data. 相似文献
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本文简要回顾数学建模竞赛活动的起源和发展,介绍国内外特别是国外学者关于提高数学建模教学质量的主要观点,并结合作者自身的经验和体会,探讨教师在数学建模教学中的作用。 相似文献
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