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Search Results: 1 - 10 of 47147 matches for " 杨明金 "
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有限元分析技术在CRCP板路面受力研究中的应用
Finite Element Analysis Technology Application in Studies on CRCP Pavements Subject to Forces
 [PDF]

杨明
Hans Journal of Civil Engineering (HJCE) , 2015, DOI: 10.12677/HJCE.2015.43017
Abstract:
文章通过工程实例借助ABAQUS有限元软件,建立CRCP板的路面模型,通过调整路面结构系数,包括CRCP层厚度、C35调平层厚度、地基反应模量大小,进行路面结构响应的参数敏感性分析。分析不同结构设计方案对CRCP板受力的影响,进一步探讨分析、验证和优化设计方案,对于今后连续配筋混凝土路面关键技术的高速发展具有重要意义。
By engineering examples and the finite element software (ABAQUS), the CRCP-plated road model was established in this article. The response sensitivities to pavement structure parameters were analyzed by adjusting these parameters such as the thickness of CRCP, C35 leveling layer and the ground modulus. The stress effect of the CRCP plates in the different structural designs was inves-tigated to further analyze, verify and optimize the design. It plays an important role in the rapid development of key technologies in continuously reinforced concrete pavement.
黑河莺落峡站径流变化的影响因素分析
杨明|张勃
地理科学进展 , 2010, DOI: 10.11820/dlkxjz.2010.02.006
Abstract: 以黑河干流出山口径流控制站莺落峡水文站1960-2004年45年的径流序列为基础数据,采用相关分析、交叉谱分析、统计规律分析、降水—径流双累积曲线法等研究了全球变化、太阳黑子活动、ENSO循环和下垫面变化对黑河干流出山径流变化的影响。结果表明①全球变化对莺落峡站径流变化影响较大;②莺落峡站年径流与太阳黑子相对数两序列在2年和3.3年两个振动周期上存在显著的相关关系,但在这两个存在显著相关关系的振动周期上太阳黑子相对数的周期波动变化都落后于莺落峡站年径流的周期波动变化;③ENSO循环对莺落峡站年径流变化有一定的影响,但是,ElNino事件和LaNina事件对莺落峡站年径流的影响时间持续较短,对事件发生当年的径流变化影响较大,对事件发生次年的径流变化影响较小;④流域下垫面变化对莺落峡站年径流量的变化影响较小。
中医药防治放射性肺损伤研究进展
,杨明
中国中医药信息杂志 , 2011, DOI: 10.3969/j.issn.1005-5304.2011.11.052
Abstract:
基于mapreduce的基因读段定位改进算法
,杨明,郭丽娜?
计算机科学 , 2015,
Abstract: 由于高通量测序技术产生了海量基因读段数据,并行的基因读段定位算法成为近年来的研究热点。对基因匹配算法进行研究,提出了一种基于mapreduce的基因读段定位改进算法,并且通过在读段定位过程中融入生物信息以及利用hadoop分布式缓存机制,在一定程度上降低了算法的复杂度。在拟南芥菜基因数据集上进行的实验表明,该算法能够有效提高算法执行效率,减少算法执行时间。
一种并行结构化支持向量机次梯度投影算法
郭丽娜?,杨明,
计算机科学 , 2014,
Abstract: 支持向量机的次梯度投影算法是解决支持向量机优化求解问题的一种简单有效的迭代算法。该算法通过梯度下降和投影两个步骤的多轮迭代,找到两类最大间隔的分类面。针对该算法忽略了对寻找分类面同样有指导意义的样本分布信息这一问题,在分类器设计中融入结构信息,并且采用mapreduce并行计算框架,提出了一种并行结构化支持向量机的次梯度投影算法,该算法能够充分利用集群的计算和存储能力,适用于海量数据的优化问题。在nasa的两个软件模块缺陷度量数据集cm1和pc1上的实验结果表明,该算法能够加快收敛速度,提高分类性能,有效地解决海量数据的优化求解问题。
草坪草帘覆盖播种技术要点及其应用效果
,李培樱,杨明
北方园艺 , 2012,
Abstract: 在介绍羊草草坪建植方法的基础上,从播种和覆盖角度总结了其栽培技术要点。结果表明与对照相比,草帘覆盖播种技术应用在羊草草坪上,草帘覆盖处理0~10cm土层土壤盐碱化程度显著降低,草坪植株密度为1267.48株/m2,地上生物量为190.34g/m2,植被盖度为40.37%,以上指标均极显著高于对照处理。草帘覆盖播种技术应用效果较好。
深井小井眼定向取心技术的应用及效果
李兵,吴尚利,杨明
天然气工业 , 1994,
Abstract: ?深井小井眼定向取心技术是国内独自开辟的一项新技术,它能从定向取心上直接观察深部地层特征和构造形态,还可解释出深部地层裂缝和岩层的产状要素(倾角、倾向),为研究深部地层裂缝性油气藏的分布规律,探明储量提供可靠的原始依据,并以此优选布井方案,提高深井勘探成功率。文章通过介绍深井小井眼定向取心技术原理及小尺寸深井定向取心工具结构特点,对川东大天池9口井眼为φ152.4mm深井应用情况和效果进行了总结分析,进一步阐明该技术是直接获得地质资料的一种经济、实用、快速、有效的方法。
On the Issues of and Countermeasures for Innovation of Grassroots Level Organizations of HEIs in China
论中国高校基层学术组织创新的问题和对策

杨明
浙江大学学报(人文社会科学版) , 2010,
Abstract: Higher education institution (HEI) is among the formal academic organizations in society . However , at present there exist some problems concerning grassroots level academic organizations . As far as the structure and function of grassroots level academic organizations of HEIs are concerned ,issues include the monotony of kinds of organizations , insufficiency of authority on the side of teaching and research units as well as general professionals , poor arrangement and low performance in the case of teaching and research units . In order to deepen the reform of grassroots level academic organizations , disciplinary units within the grassroots organizations should haveevident andacclaimed primacy inafront-line task .Special status should be given to units and they become authoritative units within the organization and in the field of learning . In the case of relationship between grassroots and middle level organizations , there exist some problems such as excessive number of colleges , too much power for college-level administrators ,obscure definition of rights . To address these problems ,it is necessary to make good development strategies decrease the number of colleges , transfer some academic power to lower level organizations ,and regard thelaws and regulations as the basefor setting teachingand research units .In the case of high level organization administration ,deregulation and devolution are necessary .
On How to Determine the Position of the Strength of China''''s Higher Education
中国高等教育实力在世界的定位

杨明
浙江大学学报(人文社会科学版) , 2003,
Abstract: 一国高等教育实力的定位是一国制定和落实高等教育竞争战略与发展战略的核心问题。中国高等教育的人力资源投入位居世界前列,但资金投入严重不足。中国高等教育的生产效率有喜有忧。中国高等教育产出总量虽可观,但比例指标值和存量指标值明显偏低。中国高等教育实力与欧美国家相比仍然存在着较大差距,增强中国高等教育实力任重道远。
On Competence Education in Colleges and Universities
试论高等学校的素质教育

杨明
浙江大学学报(人文社会科学版) , 2000,
Abstract: The transition of Chinese higher education from professional education to competence education is a great revolution. This article analyzes the shortcomings of professional education,and explores the necessity for transition and the orientation model. In order to implement competence education in colleges and universities effectively,it is necessary to reform talents training models, curriculum teaching methods and instructional evaluation systems
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