oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 29 )

2018 ( 662 )

2017 ( 735 )

2016 ( 760 )

Custom range...

Search Results: 1 - 10 of 27774 matches for " 程凡圣 "
All listed articles are free for downloading (OA Articles)
Page 1 /27774
Display every page Item
Quantitative structure-gas chromatographic retention relationship of polycyclic aromatic sulfur heterocycles using molecular electronegativity-distance vector
多环芳香硫化合物的定量结构-气相色谱保留指数关系

LI Zhenghua,CHENG Fansheng,XIA Zhining,
李正华
,凡圣,夏之宁

色谱 , 2011,
Abstract: The chemical structures of 114 polycyclic aromatic sulfur heterocycles (PASHs) have been studied by molecular electronegativity-distance vector (MEDV). The linear relationships between gas chromatographic retention index and the MEDV have been established by a multiple linear regression (MLR) model. The results of variable selection by stepwise multiple regression (SMR) and the powerful predictive abilities of the optimization model appraised by leave-one-out cross-validation showed that the optimization model with the correlation coefficient (R) of 0.9947 and the cross-validated correlation coefficient (RCV) of 0.9940 possessed the best statistical quality. Furthermore, when the 114 PASHs compounds were divided into calibration and test sets in the ratio of 2:1, the statistical analysis showed our models possesses almost equal statistical quality, the very similar regression coefficients and the good robustness. The quantitative structure-retention relationship (QSRR) model established may provide a convenient and powerful method for predicting the gas chromatographic retention of PASHs.
邻苯二胺与醛反应合成苯并咪唑衍生物的反应机理研究有机化学
崔丽君, 肖尚友, 杨昊书, 徐盼, 凡圣, 李正华, 梁荣辉, 夏之宁
有机化学 , 2011,
Abstract: 以4-甲基苯甲醛与邻苯二胺反应合成2-(4-甲基苯基)苯并咪唑的反应为例,以HPLC方法跟踪反应进程,对关键中间体与产物的结构通过1HNMR,FT-IR及LC-MS等手段进行了表征.实验证明了在邻苯二胺和醛物质的量比为1∶1时同时生成单席夫碱和双席夫碱中间体的反应机理,并提出了该类反应的影响规律.
莫迪亚诺《暗店街》与王小波《万寿寺》的失忆母题
The Motive of Memory Loss in Patrizio Modiano’s Missing Person and Wang Xiaobo’s Wanshou Temple
 [PDF]


World Literature Studies (WLS) , 2015, DOI: 10.12677/WLS.2015.31001
Abstract:
《暗店街》与《万寿寺》均从“失忆”主题出发,探索人的个体本质与生存状态,具有共同的出发点和目的性;与此同时,两者又因各自不同的文化传统和时代背景,呈现出对个体存在的不同的探索方式和探索结果。《暗店街》和《万寿寺》可以说是对历史伤痕的一种写作,但在这种伤痕写作中,体现出不同的个体生存状态。《暗店街》叙述个人对个体经历的回忆以及个体存在的虚无感,《万寿寺》描写个人对集体记忆的反思以及个人在群体生存中的呻吟。《暗店街》与《万寿寺》以回忆的艺术,唤醒了人们对本体的认识和对生存状态的反思。
Both telling stories of memory loss, Missing Person and Wanshou Temple study the state of being and inner characters of individuals for the same purpose; however, the two works take on different study methods and conclusions grounded in different cultural traditions and times. Missing Person and Wanshou Temple can be considered as description of the scars in history, during the process of which, individuals’ state of being is fully presented. Missing Person describes the recall of individual experience and the lacking sense of existence, while Wanshou Temple presents the introspection on memories shared by group from individual perspectives, as well as their sorrows of the life in group. The two works call for recognition on inner characters and provoke introspection on state of being.
关于马氏环境中马氏链的一个极限性质
A Limit Property for Non-Homogeneous Markov Chain in Markov Environments
 [PDF]


Pure Mathematics (PM) , 2016, DOI: 10.12677/PM.2016.61012
Abstract:
本文研究马氏环境中非齐次马氏链泛函的滑动平均强极限性质。通过构造一列带参数且期望为1的随机变量,利用Borel-Cantelli引理来研究随机环境中马氏链的强极限定理,得到了马氏环境中马氏链泛函滑动平均的一个强极限定理,推广了若干已有结论。
In this paper we discuss the strong limit properties for moving average of functions of non-ho- mogeneous Markov chain in Markov environments. By constructing a sequence of random va-riables with one parameter and take 1 as the expectation, with the aid of the classic Borel-Cantelli lemma, we study the strong limit properties of Markov chain in random environments and obtain a strong limit theorem for moving average of functions of non-homogeneous Markov chain in Markov environments. Moreover, we generalize the existing results.
斯图亚特•霍尔:表征的运作
Study on the Cultural Representation Theory and Signifying Practices of Stuart Hall
 [PDF]


World Literature Studies (WLS) , 2016, DOI: 10.12677/WLS.2016.42007
Abstract:
斯图亚特?霍尔被喻为“文化研究之父”,他所建构的“文化表征”理论对20世纪后半叶以来的文化研究理论和后殖民主义理论的发展做出了杰出的贡献,将结构主义语言学、符号学以及福柯权力话语理论融入表征概念之中,形成独特的文化表征理论,对“文化”的重新定义。同时,以表征为内核思考其在各种文化现象中的运作方式以及发挥的作用,不断地反思现代社会留给我们的理论遗产。
Stuart Hall, known as the Father of Cultural Studies, has constructed the theory of cultural representations and signifying practices, which contributed greatly to the theories of Cultural Studies and Postcolonial Studies since the second half of the 20th century. Stuart Hall integrated the theory of structural linguistics, semiotics and Foucault’s power discourse theory into the concept of representation, and formed a unique cultural representation theory, which is a new definition of “culture”. Simultaneously, taking the Cultural Representations as the center, Stuart Hall researches the operation mode and impact of culture in sorts of cultural phenomena, and reflects the theoretical heritages from the modern society.
历史制度主义视角下区域文化资源产业化政策供给体系研究——以徐州汉文化资源为例
The Research on Policy Supplies System of Regional Culture Resources Industrial Production from the Angle of View of Historical Institutionalism—Take the Xuzhou Han Culture Resources as an Example
 [PDF]

朱锦
Modern Management (MM) , 2012, DOI: 10.12677/mm.2012.21003
Abstract: 江苏拥有丰富、优良的历史文化资源,这是优势文化资源向文化资本转化的产业基础之一,其中尤以徐州市汉文化资源为代表。本文认为,充分利用汉文化资源的产业化资源优势,建立相关的政策供给体系,有助于汉文化资源的合理开发,并且为区域性文化资源的产业开发具有较好的借鉴意义。
Jiangsu has rich and fine historical culture resources which are one of the industrial foundations that the advantageous culture resources which are transformed into the cultural capital, as represented by Xuzhou Han culture resources especially. This article establishes the related policy supplies system through the advantages of industrial development of the Han culture resources, which will be helpful in reasonable development of Han culture resources and be good for industrial development of regional culture resources.
超越时代:奥尔特加●加塞特的高等教育思想——基于《大学的使命》
Interpretation of Ortega Y. Gasset’ Higher Education Idea—Understanding Based on “Mission of the University”
 [PDF]

海霞
Advances in Education (AE) , 2011, DOI: 10.12677/ae.2011.12011
Abstract:

《大学的使命》是一部具有强烈批判和改革精神的经典著作,它充分展示了奥尔特加?加塞特高等教育思想的创造性和预见性。本文基于对《大学的使命》的理解和分析,从大学职能的论述、学生中心地位的强调、大学的批判精神和大众教育思想四方面来重新解读奥尔特加的大学理念。
“Mission of the University” is a classic works full of the spirits of critique and reform, which fully demonstrates the creativity and foresight of Ortega Y. Gasset’ creative ideas of higher education. This article reinterprets Ortega’ ideas of university from the functions of universities, emphasis on student center, critical spirit of universities and mass education based on understanding and analysis of “Mission of the University”.

欧美高等教育学习结果比较研究
A Study on Comparison Learning Outcomes in Higher Education in Europe and America
 [PDF]

海霞
Advances in Education (AE) , 2011, DOI: 10.12677/ae.2011.13019
Abstract:

自20世纪80年代,学习结果作为保证高等教育质量的重要准则引起了一些国家的关注。时至今日,学习结果仍然是一个新课题并被不断的完善。其中欧盟和美国是在学习结果的制定和应用方面做得最好的国家,它们都形成了自己独特的经验和模式。但是作为两个国情不同的地区和国家,它们在学习结果制定的背景、学习结果的界定以及学习结果的应用等方面除了共性外,还有着各自的特点,对二者进行比较研究对于我们进一步理解学习结果具有非常重要的意义。
Learning outcomes, as important guidelines to ensure quality of higher education, has raised some national concerns since 80 years of the 20th century. Today, learning outcomes is still a new subject and is constantly improving. The EU and the United States in the development and application of learning outcomes is doing their best, and they have formed their own unique experiences and models. But as two region and country with different conditions, they have their characteristics in the backgrounds definitions development and application of learning outcomes besides of common ones. Doing comparative study on the both for fur-thering our understanding of learning outcomes is very meaningful.

再论国际经济法的部门法地位
On the Status of International Economic Law as an Independent Legal Branch
 [PDF]

松亮
Emergence and Transfer of Wealth (ETW) , 2012, DOI: 10.4236/etw.2012.24015
Abstract: 本文首先对我国国际经济法的地位做了大致的回顾,初步分析了已有观点的不足,并简略讨论了近年来有关学者对已有观点进行修正的一些努力,从而在此基础上提出一种解决目前国际经济法逻辑缺陷的初步思路,即以实在的规范为逻辑依据,而不是单纯的理论想象。This article first studies the history of the status of the legal branch of International Economic Law in China, and analyzes the shortcomings in the present theories, and the efforts made in recent years by scholars to rectify the relevant theories. The conclusion is that the way to resolve the logic problems in pre-sent theories should be to base the legal branch of International Economic Law on positive rules, not on theoretical imaginations.
试述电子邮件的证据属性及质证规则
On the Nature and Admission of Email as Court Evidence
 [PDF]

松亮
E-Commerce Letters (ECL) , 2013, DOI: 10.12677/ecl.2013.21002
Abstract: 随着计算机技术的普及,电子邮件这一证据形式也越来越多的出现在诉讼过程中,但是对于电子邮件的证据属性,我国立法并没有明确规定,理论与实践也存在较大争议,总体来说,电子邮件应该属于一种特殊的书证,在质证时,应该依据其特殊属性,并区分当事人质疑的事项而对其客观性进行分析判断。 With the popularization of computer technology, Emails have become more and more involved in court procedures as evidence. However, as to the nature of Emails as court evidence, there is no specific definition in relevant legislations, and great disputes also exist in theories and practice. General speaking, Email should be deemed as a special documentary evidence, and when the court admits an Email as evidence, the court should judge the objectivity according the questioning of parties.  
Page 1 /27774
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.