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关于如何提高硕士研究生授课质量的探讨
Discussion on How to Improve the Teaching Quality of Masters’ Courses
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Advances in Education (AE) , 2011, DOI: 10.12677/ae.2011.12017
Abstract:

随着我国硕士研究生规模及受教育人数的迅速膨胀,及其在整个受教人群中比重的不断增加,如何提高硕士研究生的授课质量已经成为高等教育界共同关注的问题。本文结合作者对国外硕士课程讲授的全程跟踪、交流和硕士生专业基础课实际教授过程中的一些体会,从教学准备、教学方法设计、教学过程和教学总结与反思等四个方面就如何提高硕士生授课质量的问题进行了深入探讨,并提出了一些值得注意的问题。
With the increase on both the scale and the amount of master students in China, it causes more and more attention on how to improve the teaching quality of Masters’ Courses. Based on the author’s experience in teaching and attending lectures in Queens University of Belfast, UK, this article discusses the possible ways to improve the teaching quality of Masters’ Courses. The discussion covers the steps of course preparation, course design, teaching process as well as teaching introspection.

基于波及度的软件结构风险预测方法的研究
Research on Forecasting Structural Risks of Large-Scale Software Based on Ripple Degree
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刘铮, 张骞,
Software Engineering and Applications (SEA) , 2013, DOI: 10.12677/SEA.2013.26026
Abstract:
由于软件网络中各节点之间的相互调用与关联,波及效应普遍存在于软件网络之中。本文针对大量的开源软件的网络结构进行研究,首先分析了正向波及度和逆向波及度在软件网络中的分布规律,然后对波及度较大的节点进行重点研究,提出了波及度显著性度量公式,并根据度量结果发现软件结构中的脆弱节点、僵化节点和“桥梁”节点,为软件结构设计与重构提供指导。
Because of the association between nodes in software network, the ripple effect exists in software network. In this paper, the distributions of forward and reversal ripple degree in many networks of open source software are analyzed firstly, and then a metric formula that evaluates the significance is presented after focusing on those nodes that have high ripple degree. According to the metric results, we can select the vulnerable nodes, rigid nodes and a “bridge” node in software structure and this method can provide guidance for design and remodeling of software structure.
我国城镇化发展与环境污染的关系研究—基于31个省市Panel Data变系数模型与VAR模型的实证分析
Analysis of the Relationship between Chinese Urbanization and Environmental Pollution —An Empirical Study Based on Panel Data Model with Variable Coefficients and VAR Model of 31 Provinces and Cities
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,, 干文
Statistics and Applications (SA) , 2014, DOI: 10.12677/SA.2014.33016
Abstract:
“积极稳妥地推进城镇化”自纳入“十五”规划以来,已成为我国一项基本发展战略。而随着生活水平的日益提高,人们对环境问题也越来越关注。因此,研究城镇化发展与环境污染的关系有重要意义。本文首先利用环境类指标构造环境污染指数,并对历年城镇化率的统计口径进行了修正,然后用描述性统计方法对我国城镇化发展与环境污染的关系进行了特征研究,最后利用Panel Data变系数模型和VAR模型从静态和动态角度对城镇化发展与环境污染的关系进行了深入探讨。研究结果表明,我国大多数省市处于倒U型曲线的左半段,即城镇化的发展带来了一定的环境污染问题。然而对于少数省市(如北京、上海和天津等),城镇化发展会改善环境状况。针对这些结论,提出了相应的对策建议。
Since the 10th Five-Year Plan of China, “actively yet prudently moving forward with urbanization” has been a fundamental development strategy in our country. With rising living standards, people increasingly concern about environmental issues. Therefore, it is quite meaningful to study the relationship between urbanization and environmental pollution. First of all, we use environmental indicators to structure environmental pollution index and conduct a statistical correction on the urbanization rate over the years. Then, features of the relationship between Chinese urbanization and environmental pollution are studied by descriptive statistics. Finally, by using varied coefficients Panel Data model and VAR model, we deeply discuss the relationship between the de-velopment of urbanization and environmental pollution from the perspective of both static and dynamic. The result shows that, the majority of our provinces in the left sections of the inverted U shaped curve, namely the development of urbanization has brought some environmental problems. While for few provinces (such as Beijing, Shanghai and Tianjin etc.), urbanization will improve the environment. According to these conclusions, the paper puts forward the corresponding development suggestions.

一类四正则小世界网络的生成树数目的算法
Spanning Trees in a Class of Four Regular Small World Network
 [PDF]

贾环身,
Computer Science and Application (CSA) , 2014, DOI: 10.12677/CSA.2014.43009
Abstract:
生成树是表征网络结构性质的一个重要物理量,然而精确地确定网络上的生成树数目是一个巨大的理论挑战。本文提出了一个四正则小世界网络模型。介绍了其概念及演化过程,详细计算了四正则图的相关拓扑特性,例如直径、聚类系数等。给出了此类四正则网络的生成树数目计算方法,得出生成树数目公式及熵。研究发现,所研究网络的生成树的熵与具有相同平均度的其他网络形成了鲜明的对比,因为后者的生成树的熵小于所研究网络。因此,这一四正则小世界网络上的生成树数目比其他具有自相似结构网络生成树的数目要多
Spanning tree is an important quantity characterizing the reliability of a network; however, explicitly determining the number of spanning trees in networks is a theoretical challenge. In this paper, we present a class of four regular network model with small world phenomenon. We introduce the concept and evolving process and determine the relevant topological characteristics of the four regular network, such as diameter and clustering coefficient. We give a calculation method of number of spanning trees in such four regular network and derive the formulas and the entropy of number of spanning trees. We find that the entropy of spanning trees in the studied network is in sharp contrast to other small world with the same average degree, of which the entropy is less than the studied network. Thus, the number of spanning trees in such four regular network is more than that of other self-similar networks.
一种确定性小世界网络模型平均路径长度的逼近方法
An Approximation Algorithm for Average Path Length in A Small-World Network Model
 [PDF]

张科, , 李峰
Advances in Applied Mathematics (AAM) , 2014, DOI: 10.12677/AAM.2014.31004
Abstract:
确定性小世界网络是复杂网络中的一个重要的研究分支。2008年,章忠志等人(Eur.Phys.J.B 63)在复杂网络的视角下对确定性均匀递归树作了详尽地分析,得到了其拓扑属性。尽管确定性均匀递归树的平均路径长度表现出了网络大小的对数规模,但是它的聚类系数为零。2012年,陆哲明等人(Physica A 391)通过在确定性均匀递归树的基础上以一个简单的规则添加一些边得到一个确定性小世界网络模型。本文根据网络模型的结构用分析的方法给出了文献Physica A 391中的模型的平均路径长度的逼近方法。
Deterministic small-world network is an important branch of study of complex networks. In 2008, Zhang et al. in Eur.Phys.J.B 63 have offered detailed topological characteristics of the deterministic uniform recursive tree from the viewpoint of complex network. They derived topological characteristics of the deterministic uniform recursive tree. It shows a logarithmic scaling with the size of the network, however, its clustering coefficient is zero. In 2012, Lu, et al. in Physica A 391, based on the deterministic uniform recursive tree, by a simple rule to add some edges, got a deterministic small-world network model. In this paper, using an approximation algorithm based on the network construction, we show explicitly the average path length of the model constructed in Physica A 391.
一种星–树结构的确定性的小世界网络
A Star-Tree-Structured Deterministic Small-World Network
 [PDF]

侯鹏锋,
Computer Science and Application (CSA) , 2014, DOI: 10.12677/CSA.2014.411038
Abstract:
在过去的的几十年,人们运用各种机制建构了许多不确定性的和确定性的小世界网络。最近,郭世泽等人通过在星图K1,2上运用一个简单的算法在每个迭代步添加一些边首次形成了一个二叉树结构的确定性的小世界网络。本文通过一个星图K1,6在每个迭代步连接每个树的各祖父节点和它的四个孙子节点,由此构建一个二叉树结构的新的确定性的小世界网络模型。此外,我们给出了一些拓扑属性的分析结果,它表明构建的模型是小世界网络。
In the past dozen years, many probabilistic small-world networks and some deterministic small- world networks have been proposed utilizing various mechanisms. Recently, Guo et al. proposed a deterministic small-world network model by first constructing a binary-tree structure from star K1,2 by adding some edges in each iteration with a simple mechanism. In this paper, we propose a new deterministic small-world network model by constructing a binary-tree structure from a star K1,6 and then adding links between each grandfather node and its four grandson nodes for each tree in each iteration. Furthermore, we give the analytic solution to several topological characteristics, which shows that the proposed model is a small-world network.
小秦岭大湖金钼矿同位素地球化学特征
,
地质学报 , 2015,
Abstract:
中西文兼容期刊计算机管理系统

现代图书情报技术 , 1989,
Abstract: 本文主要介绍了利用MINISIS关系数据库研制期刊计算机管理系统的设计思想、方法和功能,以及系统的维护和安全性。本系统分为三大部份:现刊管理、过刊管理和期刊篇目索引。系统投入运行后,用户反映良好、功能齐全,能满足期刊管理的要求。
广东普宁麒麟辉石岩幔源包体的岩石学特征

岩石学报 , 1985,
Abstract: 广东普宁麒麟超镁铁岩集块角砾岩筒中含有丰富的二辉橄榄岩—方辉橄榄岩、辉石岩幔源包体,是研究上地幔的良好地点。目前,国内外对橄榄岩包体研究和报导较多,而对上地幔的一个重要组成部分—辉石岩则研究较少,对辉石岩成因问题尚存在争议。因此,本文主
猪肾氨基酰化酶Ⅰ的初步晶体学研究

科学通报 , 1997,
Abstract: <正>氨基酰化酶Ⅰ(aminoacylase I,ACY-1)(3.5.1.14)主要存在于哺乳动物的肾脏和微生物中,是生物体进行氨基酸代谢时一个重要的水解酶,它可逆地催化酰化L-氨基酸的水解反应.该酶由772个氨基酸组成,分子量为85.500ku,是一个寡聚酶,由两个相同亚基组成,每个亚基含有一个锌离子.猪肾ACY-1与人的ACY-1的核酸序列有88.3%的同源性,氨基酸序列的同源性为87.7%.将猪肾ACY-1的氨基酸序列放在PROSITE数据库中检索,除了几个潜在的蛋白激酶磷酸化的位点和2个可能的N-糖基化位点外,没有其他明显的特征.把猪肾ACY-1的核酸序列和氨基酸序列与EMBL/GenBank和SwissProt Database中的序列进行比较,除了由E.coli表达的酰氨酶(amidase,succinyl-diaminopimelate desuccinylase),没有发现它与其他蛋白质有同源性,Wilbur-Lipman Algorithm统计分析表明,酰氨酶与猪肾ACY-1序列在400个氨基酸长度内有24%的等同性、这些结果提示,ACY-1是一类新的含锌金属蛋白.张艳等人用CD和FTIR谱对它的二级结构进行了研究.
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