oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 21 )

2018 ( 633 )

2017 ( 694 )

2016 ( 752 )

Custom range...

Search Results: 1 - 10 of 29600 matches for " "
All listed articles are free for downloading (OA Articles)
Page 1 /29600
Display every page Item
高职高专院校辅导员职业认同感探析与对策路径
Occupation Identity and Countermeasures of Instructor on Higher Vocational College
 [PDF]


Advances in Education (AE) , 2013, DOI: 10.12677/AE.2013.32010
Abstract:

高校辅导员是大学生思政教育的主体力量,是大学生日常服务与管理的直接承担者与实施者,对于大学生的成长与成才扮演着重要角色,发挥重要的作用。由于社会现状以及自身认知等原因,高校辅导员职业认同感不一,职责定位不明确,特别是高职高专院校的特殊性与层级性,辅导员的职业认同感亟待培养与关注,寻求相关路径进行解决具有理论研究价值以及现实参鉴意义。
College counselors are the main force of ideological and political education of college students, who is the directly responsible for the university students on daily service and management. They play an important role for the growth and development of college students. Because of the social status and cognitive reasons, college counselors occupation identity is not a duty, the positioning problem is not clear, especially the particularity of Higher Vocational Colleges and hierarchy, identity of instructor occupation to cultivate and seek attention have theoretical research value and realistic reference meaning.

基于非线性理论的脉搏主波间期序列的识别
Comparative Analyses of PP Wave Intervals Based on Nonlinear Chaotic Theories
 [PDF]

清鹏
Applied Physics (APP) , 2012, DOI: 10.12677/APP.2012.23012
Abstract:

本文研究采用基于混沌理论的两种非线性参数估计方法(代替数据法和Lyapunov指数估计法)对两组不同生理病理条件下脉搏主波间期序列进行分析。首先对上述两种算法进行介绍,然后对脉搏主波间期序列进行对比分析。分析结果表明,在时域波形上直观相似的非平稳信号,用上述非线性混沌分析的方法可以有效地加以定量区分。对于不同生理病理条件下的脉搏主波间期系列,由代替数据法所得到的特征参数的特征概率值均小于0.05,拒绝随机假设,信号的混沌特性得到辨识,由此可判断出所计算的脉搏信号具有混沌特征;两组信号的最大Lyapunov指数均为正值并有明显差别。根据代替数据法中的概率值的大小和最大Lyapunov指数可以看出,心律不齐患者比正常人员具有更明显的混沌特征。
 In the paper, two nonlinear estimation methods based on chaotic theory, surrogate data method and Lyapunov exponents, are used to distinguish the difference of PP wave intervals (time series of the pulse main peaks). After brief introduction of the corresponding algorithms, two typical different healthy state signals of PP wave intervals are compared by using the two methods. The obtained results demonstrate that the signals are distinguished effectively in quantitative way. With surrogate data method, which is applied to identifying the existing chaos of PP intervals of pulse, it is proved that the series of PP intervals of pulse are chaotic. Largest Lyapunov exponents of PP wave intervals are calculated. The Largest Lyapunov exponents of the two kinds of signals are both positive and different from each other. The chaotic character of arrhythmia is much more significant than that of healthy state.

非正常组织对铸钢性能的影响
Effect of Abnormal Microstructure on Properties of Cast Steel
 [PDF]

庆艳
Material Sciences (MS) , 2012, DOI: 10.12677/MS.2012.24026
Abstract: 本文以正火态ZGD410-700牌号为例,做出合格金相F + P及不同级别的铸态残留非正常组织,分别进行性能、金相、硬度及冲击性能测试,结果表明:非正常组织对抗拉、延伸率无影响;硬度略高于合格F + P;明显降低材料的冲击性能。
This paper takes ZGD410-700 as an example. Qualified F + P microstructure and different levels of remaining casting abnormal structure are made following with property, microstructure, hardness and impact property testing. The result shows that: abnormal structure has no effect on strength of extension and elongation, also has higher hardness and lower impact property than qualified structure.
感受空间、时间、质量的相互联系—理子常数
Interaction of Fell Space, Time, Mass Relation—Constant of LIZI
 [PDF]

永全
Modern Physics (MP) , 2013, DOI: 10.12677/MP.2013.32010
Abstract: 任何理子的感受空间、质量、时间的变化存在着相互制约关系。理子的感受空间、质量、时间的乘积是一个常数,其数学表达式如下,N = (V ? v)MT,其中N是理子常数,V是宇宙内、外空间的和,并且是常数(超空间),v是理子所占的空间,(V ? v)是感受空间,M是理子的质量,T是时间。我的理论将物理学最基本的物理量空间、时间、质量联系起来。
For each LIZI, mass, the changing of time and feeling space exist the relation of constraints. The product of the feeling space, mass and the changing of time of the LIZI is a constant. We can express it by a math equation, N = (V ? v)MT. N is the constant of LIZI; V refers to the summation of the inside and outside universe and it is a constant; v is the space which LIZI takes; (V ? v) is the feeling space; M is the mass of the LIZI; T refers to time. My theory com-bines the basic things of physics space, time and mass together.
基于盲GDH签名的无记忆模糊关键词搜索
Oblivious Fuzzy Keyword Search Based on Blind GDH Signature
 [PDF]

, 秦静
Computer Science and Application (CSA) , 2013, DOI: 10.12677/CSA.2013.32022
Abstract:
在云计算中,用户在计算过程中的数据安全问题已经成为制约云计算发展的一个瓶颈本文针对云计算中的加密搜索问题,提出一个有效的加密搜索方案在搜索过程中,为保证用户的数据安全,用户需要隐藏搜索的关键词以及搜索返回的结果Wakaha OgataKaoru Kurosawa2004年提出了一个基于盲RSA签名的无记忆关键词搜索(OKS)方案,提供了安全的加密搜索,然而该方案中每个数据文件只能关联一个关键词本文改进了原方案,我们的方案基于盲GDH签名,同时使无记忆关键词搜索方案可以在一个数据文件中同时关联多个关键词供用户搜索此外,用户在搜索的过程中,可能因为关键词不能完全匹配而导致搜索失败,针对这一问题我们将该方案扩展为无记忆模糊关键词搜索(OFKS)方案,使得用户能够对模糊关键词进行正确且安全的搜索操作.相比较原来的方案,我们的方案提供了更有效的搜索方式及对模糊关键词搜索的支持
As Cloud Computing becomes prevalent, data privacy has been a bottleneck of Cloud Computing. When using Cloud Computing, users need to implement a large amount of data search. So the security of search is a key point of protecting user’s data privacy. This paper mainly concentrates on the searchable encryption scheme. In order to guarantee the security property, a user needs to hide the keywords and the files he/she wants to search. In 2004 Wakaha Ogata and Kaoru Kurosawa proposed a secure searchable encryption scheme, named as oblivious keyword search (OKS), based on Chaum’s blind signature. However we find their scheme connecting only one keyword with the data file that is encrypting the data file with its keyword. And then if a data file contains several keywords, we need to repeat the encryption with every keyword. This is quite inefficient. We solve this problem by constructing a new OKS scheme from blind signature based on GDH assumption and connect data files with all its possible keywords. Furthermore, when users are
雾霾形成的物理原理解析
Analysis of the Physical Principle of Fog and Haze Formation
 [PDF]

永全
Applied Physics (APP) , 2014, DOI: 10.12677/APP.2014.44006
Abstract:

雾(灰)霾的形成是自然活动、科技、人类活动的结果。今年两会中科院院长白春礼在回答相关雾霾问题时指出,雾霾的三大“源”凶:燃烧、汽车尾气、扬尘,但是pm2.5的第二次爆发原因很复杂,包括一些化学反应。其实,雾霾形成的原因是:1) 雾霾颗粒的积累,即燃烧、汽车尾气、扬尘作用的结果;2) 雾霾颗粒向上的动力——热空气向上运动,无线传播,即向上运动的电磁波网;3) 无持续风向。三个条件都具备才会爆发持续的雾霾天气,缺一不可,pm2.5的二次爆发正是上述三个条件共同作用的结果。
The fog and haze formation is the result of natural activity, science and technology, and human activity. This year President Bai Chunli of NPC and CPPCC CAS indicates the reasons of the fog and haze in answering related problem, which are combustion, vehicle exhaust, and dust. But the reasons of the second outbreak of pm2.5 are complex, including some chemical reaction. In fact, the reasons of the fog and haze are: 1) the accumulation of the fog and haze, namely the results of combustion, automobile exhaust, and dust effects; 2) the fog and haze particles’ upward momentum—hot-air upward movement and wireless communication, namely the electromagnetic wave net sports; 3) no sustained wind. These three conditions indispensable lead to persistent fog and haze weather, and the second outbreak of pm2.5 results from the above three conditions together.

入世后我国贸易附加值变化的研究—基于12个工业部门的分析
Research on China’s Trade-Added Value after Joining WTO—An Analysis of 12 Industrial Departments
 [PDF]

, 黄晨
World Economic Research (WER) , 2013, DOI: 10.12677/WER.2013.23003
Abstract:

入世十多年来,我国经济和对外贸易发展成绩斐然,工业制成品,尤其是机电产品和高新技术产品在我国出口产品中的比重逐渐增加,出口产品结构不断优化。然而我国出口商品还停留在“中国制造”阶段,产品的附加价值并不高。本文利用贸易附加值这一更注重贸易利益本质的研究方法,对我国12个工业部门2001年~2011年间的贸易附加值进行整理计算,得出入世以后,我国技术密集型产业的产品附加值正在稳健提升,而传统的劳动密集型产业在国际分工中的地位在逐渐下降的结论。

After joining the WTO for more than ten years, China has made great achievements in economics and foreign trade. Since manufactured products, especially mechanical and electrical products as well as high-tech products, are accounting for more and more proportions of export products, China’s export structure has been upgrading. However, China’s exports are still in the phase labeled “made in China”, which means that the added value of export products is low. This paper calculates the added value of trade in 12 industrial departments in China between 2001 and 2011 by using the trade-added value method. As a result, we come to a conclusion that after joining WTO, technology-intensive industries in China have been increasing their trade-added value steadily, while those traditional labor-intensive industries are losing their positions on the ladder of the international division of labor.

 

现代乘用车柴油机技术
发表于《中国工程科学》2009年11期,引自
http://d.wanfangdata.com.cn/Periodical_zggckx200911005.aspx  [PDF]

志玉
QianRen·Energy (QRE) , 2014,
Abstract:
市场需求、排放法规、燃油经济性、客户满意度和成本是影响车用发动机技术发展的主要因素。与汽油机相比,现代柴油机在上述方面大都具有一定的优势,因此现代柴油机技术已成为乘用车发动机技术发展的一个重要方向。目前我国乘用车柴油机与国际先进水平仍存在很大的差距,亟需突破包括高效清洁燃烧技术、电子控制燃油喷射系统、发动机管理及标定技术等技术难点。建议自主开发低油耗、低污染物排放的高效清洁乘用车柴油动力,以满足我国未来乘用车大市场的需求。
There are some dominant factors which affect the technology development of diesel engines, including market requirement, emission regulation, fuel economy, customer satisfaction and cost. In the above aspects, modern diesel engines have advantages over gasoline engines, therefore advanced diesel technology is an important direction for passenger car engines. At present there is a visible gap in the diesel engine technology for passenger cars between China and foreign developed countries. In order to realize independent development of advanced diesel engines with low fuel consumption and pollutant emissions, and meet the need of the future passenger car market in China, it becomes urgent to break through the difficulties in the technology of modern diesel engines, such as high-efficient and clean combustion, electronic controlled fuel injection, engine management, engine and vehicle calibration, etc.
五台方言中[liЦ]的分布及历史来源
The Distribution and Historical Origins of [liЦ] in Wutai Dialect
 [PDF]

沛玲
Modern Linguistics (ML) , 2014, DOI: 10.12677/ML.2014.21004
Abstract: 五台方言中[liЦ]句法功能多,语义复杂,有对应于普通话修饰语标记//、持续标记、语气词、引介词/的用法,也有自己独特的用法。通过历史文献考证和其他方言中同类现象的比较研究,[liЦ]实际上代表了历史来源不同而今音相同的多个功能词,属于同音同形词。
 In Wutai dialect, [liЦ] has many syntactic functions, and its semantics is complex. Some of them are corresponding to the mandarin modifier markers “//”, durative aspect marker “
基于人工神经网络的煤炭消耗量预测研究
Prediction of the Coal Consumption Based on Artificial Neural Network
 [PDF]

仉义美,
Computer Science and Application (CSA) , 2013, DOI: 10.12677/CSA.2013.36048
Abstract:
本文利用我国2000~2011年的能源统计数据,针对我国煤炭消耗量问题,应用人工神经网络模型对煤炭消费量进行预测分析与评估。首先通过对2000~2010年的能源统计数据对网络模型进行学习训练,在此基础上对2011年的煤炭消费量进行预测。然后,在对这12年的煤炭消费量预测的结果进行评估分析。最后为与煤炭消耗相关的决策者们提供科学且有价值的参考依据。
>To the coal consumption problem of China, artificial neural network model for coal consumption’s predictive analysis and assessment was set up with the energy statistics of the years 2000-2011. At first, the ANN model was trained through the energy statistics of the years 2000-2010, on this basis, the model will predict the coal consumption of the year 2011. Then the results predicted of the coal consumption in the recent 12 years will be analyzed and assessed. In a word, it provides some scientific and valuable reference for the managers and decision makers.
Page 1 /29600
Display every page Item


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