基于主成分分析与神经网络的葡萄酒品质评价

此文在主成分分析的基础上,运用人工神经网络对UCI数据库的葡萄酒数据建立了数学模型。仿真实验结果表明该模型是行之有效的方法。     

基于核独立成分分析的静息态fMRI数据研究（英文）

为了方便提取静息态默认网络,降低功能核磁共振（fMRI）数据复杂度,克服独立成分分析只适合于源信号线性混合的限制,提出了特征降维和非线性变换的框架.首先采用主成分分析对fMRI信号的时间维度进行降维,将原始维度为153 594×128的fMRI数据降至153 594×5,以达到降低计算复杂度的目的,并保留95%的信息成分.然后利用基于高斯核的非线性独立成分分析即核独立成分分析来分析静息态fMRI数据并提取默认网络.实验结果表明,在分析静息态fMRI数据的过程中,核独立成分分析不仅能准确提取默认网络,而且降低了噪声,所得到的结果优于普通独立成分分析.     

基于微电商平台的高校微创业教育与实践研究

微创业作为一种新的创新创业理念,它从大学生的实际需要出发,契合了其实际需求.在信息化时代,高校利用微电商平台开展的微创业实践活动符合时代精神,有助于提高大学生的智力水平和体现大学生的创新精神.研究中通过对高校开展微创业教育的背景和意义、优势、现状和存在的问题进行分析研究,从理念—师资—课程—实践—政府和社会等方面提出高校微创业实践教育的对策和建议.     

一种基于SaaS的云计算安全模型（英文）

云计算使公司减少了外包需求的计算成本,云计算客户目前没有办法保证他们的数据和计算的保密性和完整性,为解决此问题,提出了一种基于SaaS的云计算安全模型,提供一个封闭的执行环境,保证客户虚拟机的安全运行.它允许用户验证SaaS,确定服务是否安全.     

基于主成分分析和GM（1,1）的土地利用结构变化分析及预测——以徐州市为例

根据2003~2008年的地类数据,采用主成分分析法来研究和分析徐州市土地利用结构变化情况和影响因素,得出当前徐州市土地利用结构变化最根本的动力是人口因素;然后借助GM（1,1）模型,对其未来土地利用结构进行预测和检验.结果表明,该模型比较符合土地利用结构变化的预测,可以为当地修编土地利用规划和城市规划提供参考.     

基于主成分分析的校企合作绩效评价——以西部49所国家示范（骨干）高职院校为例

以校企合作相对薄弱、更需提高的西部高职院校为样本,在构建企业主体、学校主导的绩效评价指标体系基础上,通过主成分分析法,对西部49所国家示范（骨干）院校进行绩效打分,最后提出校企合作改进建议。     

让先进的IT平台产品和技术融入教育信息化建设——访富士通（中国）信息系统有限公司平台销售部总经理杨颖毅，公共行业销售总监黄坚

记者：据相关数据，Fujitsu（富士通）教育行业的年市场增长率超过50％，Fujitsu（富士通）如何打造其核心竞争力？     

新形势下的教育考试管理——基于互联网平台的招生、考试管理和服务体系的实践与认识

教育考试管理,在各省级招生考试管理机构中,体现为各类招生、考试的业务管理。本文以云南省招生考试委员办公室一年多来的实践情况为依据,通过大量实践数据,认真分析了"基于互联网平台的招生考试管理与服务体系"管理模式所取得的社会效益和经济效益,确认了这一管理模式对招生、考试"阳光工程"的有力保障和对构建和谐社会的促进作用,确认了这一管理模式是实施"科技招考"的重要手段。确认了这一管理模式对提升政府形象和加强全社会信息化,特别是在加强招生考试管理过程中公平、公正作用的深远影响。     

小学儿童安全应急能力：发展现状、趋势和路径——基于对19693名3～6年级学生的调查

对河北、贵州和云南三地共19693名城乡3～6年级小学儿童的安全应急能力进行调查,发现学生对不同领域安全应急知识的掌握水平存在一定差异;学生不同领域安全应急能力的发展趋势不同,5至6年级是迅速提升的一个阶段;女生的安全应急能力略高于男生;西部地区学生的安全应急能力明显低于东部地区;九年一贯制学校学生的安全应急能力明显高于完全小学和教学点学生;父母受教育水平过低会对学生安全应急能力的发展产生负面影响。学校安全应急教育应坚持系列化、常态化和长效化,建构科学的小学安全应急课程体系,构建“家校社三位一体”的小学安全应急教育体系,逐步缩小东西部学生安全应急能力发展差距。     

“互联网+”背景下基于微信公众平台的翻转课堂建设与实践——以“水处理工程（Ⅰ）”课程为例

"水处理工程(I)"是给排水科学与工程专业最主要的专业课程之一。该课程围绕原料水到产品水生产过程中水质的改变,针对不同原水水质特征和不同的水质标准,介绍水处理过程中主要物理、化学处理方法的原理、应用和设计,使学生具备利用单元组合,解决饮用水复杂工程问题的能力。由于课程内容多,知识理论体系抽象,课程教学模式传统,"水处理工程(I)"课程教学效果和人才培养质量亟须改进。     

Relationship of public preferences and behavior in residential outdoor spaces using analytic hierarchy process and principal component analysis—— a case study of Hangzhou City, China

INTRODUCTION Nowadays, as a large number of residential blocks and college campuses are being constructed nationwide in China, improvement in the quality of residential community becomes a rising issue of city policy and urban planning. Layouts of open spaces in residential areas are predicated on their ability to deliver both a mechanism to maintain the viability of citizens’ outdoor lives and a treatment to alleviate the high-density of urban constructions. What kinds of residential o…     

Analysis of genetic diversity in banana cultivars (Musa cvs.) from the South of Oman using AFLP markers and classification by phylogenetic, hierarchical clustering and principal component analyses

Banana is an important crop grown in Oman and there is a dearth of information on its genetic diversity to assist in crop breeding and improvement programs.This study employed amplified fragment length polymorphism(AFLP) to investigate the genetic variation in local banana cultivars from the southern region of Oman.Using 12 primer combinations,a total of 1094 bands were scored,of which 1012 were polymorphic.Eighty-two unique markers were identified,which revealed the distinct separation of the seven cultiva...     

A cross-sectional study of irritable bowel syndrome in nurses in China: prevalence and associated psychological and lifestyle factors

The prevalence of irritable bowel syndrome (IBS) and associated factors, especially psychological and lifestyle factors, in nurses in China have not been investigated previously. The aims of this study were to assess the prevalence of IBS in nurses, to evaluate whether factors, such as psychological disorders, are associated with IBS, and to determine whether psychological disorders can influence the severity of symptoms of IBS and quality of life (QOL). A cross-sectional study was conducted for Chinese nurses from November 2012 to February 2013. Participants were asked to complete questionnaires. The prevalence of IBS was 17.4%. The revised symptom checklist 90 (SCL-90-R) scores were significantly higher for nurses with IBS than for those without IBS (P<0.001), and no difference in scores between IBS subtypes was found (F=1.893, P=0.142). The scores of QOL for nurses with and without IBS were 77.18±21.93 and 88.44±11.89 (P<0.001), respectively. Psychological disorders did not show statistically significant correlations with severity of symptoms of IBS or QOL. Alcohol consumption, low level of exercise, and psychological disorders were risk factors for IBS. In summary, nurses in China show a high prevalence of IBS. Psychological disorders and some related lifestyle factors are probably responsible for the development of IBS in nurses.     

Inter-agency cooperation in the quality assurance of transnational education: challenges and opportunities

This paper presents the findings of a study undertaken by the United Kingdom Quality Assurance Agency for Higher Education (QAA), with support from the International Network for Quality Assurance Agencies in Higher Education (INQAAHE), aimed at investigating the challenges and limits to cross-border cooperation in the quality assurance of transnational education. The study builds on the outcomes of the recently concluded Erasmus Mundus project Quality Assurance of Cross-Border Higher Education (QACHE) and in particular the QACHE Toolkit developed as part of the project to foster cooperation between quality assurance agencies in quality assuring transnational education. Based on the responses to a survey sent to QAA’s partner agencies in key sending and receiving countries of transnational education, the study extract recommendations to agencies to help them developing viable strategies for inter-agency cooperation, identifying concrete ways in which they might or might not cooperate across borders.     

Effects of overburden, rock strength and pillar width on the safety of a three-parallel-hole tunnel

During the excavation of three-parallel-hole tunnel, the tunnel might collapse due to over-stress as a result of inadequate rock pillar width. Treating the rock overburden depth, rock strength, and rock pillar width as variables, a series of 3D numerical analysis was carried out to examine the effect of each variable on the safety of the tunnel, in particular the rock pillar. A stress strength ratio （SSR） was used to define whether the safety of the rock pillar was exceeded. A simple design chart for the case of three-parallel-hole tunnel, which took into account the influence of overburden depth, rock pillar width, and rock strength, was also proposed for used in the preliminary design stage.     

Reconsideration of the coexistence of Buddhist temple education and state education in Xishuangbanna,China

This paper presents data gathered in interviews with 29 informants in Xishuangbanna Dai Autonomous Prefecture of Yunnan, China – an administrative region with Theravāda Buddhist religious identity. The data highlight tensions between the traditional faith-based education provided by Theravāda Buddhist temple schools and secular state education. The paper concludes that a negotiated balance between traditional faith-based education and the state education system would best serve the interests of the ethnic minority in the region.     

A qualitative study of the current transformation to rural village early childhood in China: Retrospect and prospect

By far, literature regarding Chinese early childhood education and care (ECEC) has primarily focused on Youeryuan in urban settings. Youeryuan is the everyday Chinese term used for ECEC programs serving children ages three to six, which does include the U.S. version of the kindergarten year. This paper will refer to Youeryuan rather than the Western definitions of preschool or kindergarten so as to maintain authenticity. Furthermore, this paper will focus on the history and development of rural Youeryuan based on a qualitative study of the government-owned, privately operated Youeryuan that represent the current reform initiatives in early childhood in China. Through teacher and administrator interviews, onsite observations using ECERS-R, and school documents, the lead author immersed herself in rural Youeryuan as part of a larger ethnographic study in China in the midst of economic and educational transformations. The findings of this study revealed themes related to increased government investment, improved school policies, the lack of instructional materials, curriculum and instruction issues, local government support for professional development, administrative support for instruction, and the need for mentoring for teachers.     

Distributions of HLA-A and -B alleles and haplotypes in the Yi ethnic minority of Yunnan, China: relationship to other populations

Objective: To investigate the distributions of human leukocyte antigen (HLA)-A and-B alleles and HLA-A-B haplotypes in the Yi ethnic minority of the Yunnan Province, situated in southwestern China. Methods: DNA typing for HLA-A and-B loci was performed using the polymerase chain reaction-sequence-based typing (PCR-SBT) method on 114 randomly selected healthy individuals of the Yi population. The allelic frequencies of HLA-A and-B loci were calculated by direct counting and HLA-A-B haplotypes were estimated ...     

The dimensional structure of reading assessment tasks in the IEA reading literacy study 1991 and the Progress in International Reading Literacy Study 2001

The study investigates measurement properties of the reading assessment tasks used in the IEA 1991 Reading Literacy (RL) study and the Progress in International Readings Study (PIRLS) 2001 study. The analysis is based on data from the Swedish PIRLS study, comprising 16,676 students in grades 3 and 4. As an extension to the basic design, not only the PIRLS tasks were administered, but each student also completed 1 of the 2 booklets from the 1991 study. Using missing-data modeling techniques, confirmatory factor analysis models were estimated and tested for the complete set of reading tasks. Results show that both sets of tasks measure comprehension of reading continuous text, but that each of them also represents unique sources of variance. In the RL instrument, reading speed is one such component, and performance on tasks from the documents domain is another. The PIRLS tasks are influenced by the requirement to produce constructed responses. It is also demonstrated that the shared context among items referring to a particular text is a source of systematic variance.