赋准范空间的准~*自反性

在赋准范空间上定义准*自反的概念,利用凸锥的工具,证明了AX(B*)在赋准范空间单位闭球上是稠密的,从而证明了赋准范空间具有准*自反性质。     

Low-power three-stage amplifier using active-feedback Miller capacitor and serial RC frequency compensation

A low-power three-stage amplifier for driving large capacitive load is proposed. The feedback path formed by the active-feedback Miller capacitor leads to a high frequency complex-pole but a high Q-value, which significantly deteriorates the stability of the amplifier. The serial RC stage introduced as the second stage output load can optimize the resistor Rz and the capacitor Cz under fixed power and small compensation capacitor Ca, which brings about a suitable Q-value of the complex-pole and the gain-bandwidth product extension of the amplifier. The amplifiers were designed and implemented in a standard 65 nm CMOS process with capacitive loads of 500 p F and 2 n F, respectively. The post-layout simulation results show that the amplifier driving the 500 p F capacitive load can achieve a gain of 113 d B, a phase margin of 50.6° and a gain-bandwidth product of 5.22 MHz while consuming 24 μW from a 1.2 V supply. For the 2 n F capacitive load, the amplifier has a gain of 102 d B, a phase margin of 52.8°, a gain-bandwidth product of 4.41 MHz and a power of 43 μW. The total compensation capacitors are equal to 1.13 p F and 1.03 p F. The better figures-of-merits are 108 750 and 205 113(MHz×p F/m W). The layout areas are 0.064 mm×0.026 mm and 0.063 mm×0.027 mm. Compared with the CFCC scheme, the gainbandwidth product is extended by 1.6 times at CL=500 p F and Ca=1.1 p F.     

英美现代公民教育的文化转向

公民身份与公民教育之间是相望互动的,从公民身份观念地演化可以透视出公民教育的实践走向.20世纪下半叶以来,文化公民身份观念应运而生,并逐渐在西方众多国家兴起.这牵连出了英美现代公民教育中的诸多文化议题,公民教育实践需要在民族性与全球性、民主性与多样性之间保持适当地张力与整合.在这场“漫长的革命”中,英美现代公民教育正处于文化转向的过程之中.所谓“文化转向”不是一种视文化为全部内容和终极目的的教育形态,而是平等的凸显文化维度在公民教育中的重要地位.     

“把”字句及其下位句式语篇分布研究

"把"字句的总体分布频率由高到低依次为:对话语篇>时评语篇≈叙事语篇>说明语篇,剔除没有"把"字句的语料,该排序则变为:说明语篇>叙事语篇>时评语篇>对话语篇。"把"字句最典型的下位句式是"N1把N2+V在/到/给/向+N3""N1把N2+V+结果补语""N1把N2+V+趋向补语"等,最不典型的是"N1把N2+一+V"等。依照分布频率的高低以及分布类型的多少两个维度,可以建立"把"字句下位句式典型性连续统。"把"字句下位句式的语篇分布可以作出功能上的解释。     

口腔本科生创新培养模式的培养效果研究

目的:创新高校口腔本科学生培养方式,提高人才培养质量。方法:对相邻两个年级的学生采取不同的培养模式,通过素质考核结果及学生个人体验调查分析培养效果。结果:按照创新培养模式培养的学生,在就业质量率及就业质量、考研率、文献检索能力及临床技能水平等多方面较传统培养模式培养的学生,有明显提高。结论:培养模式创新有利于口腔本科学生的培养。     

The impacts of network centrality and self‐regulation on an e‐learning environment with the support of social network awareness

An e‐learning environment that supports social network awareness (SNA) is a highly effective means of increasing peer interaction and assisting student learning by raising awareness of social and learning contexts of peers. Network centrality profoundly impacts student learning in an SNA‐related e‐learning environment. Additionally, self‐regulation behavior significantly influences online learning of students. However, exactly how network centrality and self‐regulation influence learning behavior and effectiveness in an e‐learning environment remains unclear. Therefore, this study investigates how both variables (ie, network centrality and self‐regulation) impact student learning in an SNA‐related e‐learning environment. Analytical results indicate that the student group with high‐level centrality and low‐level self‐regulation more significantly progresses in learning achievement than the other groups. The second finding shows the group also has the highest number of students asking for help, revealing they have the highest system utilization rate.     

互联网金融借贷平台的法律问题研究:以P2P为例

本文主要通过介绍互联网金融P2P借贷发展的概念,详细分析了互联网金融最具代表性的P2P网络借贷平台最近的发展状况及其带来的各种法律风险。然后运用国内外互联网金融理论对我国P2P网络借贷平台的现实问题进行具体阐述,提出一系列完善法律制度、建立完善互联网金融体系的建议。     

国内外网络舆情数学建模研究综述

互联网技术的发展及网络应用的普及使网络舆情成为当前一个热门的研究领域。众多学者从不同角度运用不同的数学方法对网络舆情进行了研究,取得了大量成果,涌现出大批文献。本文从数学建模的视角对部分国内外网络舆情的研究文献进行归类分析。按照网络舆情中不确定性因素的数学处理方法不同,将网络舆情数学建模的模型主要分为四类。即经典数学模型、随机数学模型、不确定数学模型、其它数学模型。结合现有网络舆情数学建模中存在的问题,本文对网络舆情相关研究的未来发展趋势进行了展望。     

浅析GUI“创新点”的专利保护

国家知识产权局发布决定修改《专利审查指南》,对包括GUI的产品外观设计给予专利保护。本文试图对GUI所承载的技术方案与设计思想进行分析,从混淆和创新角度考察GUI外观设计专利权的范围,对如何给与GUI外观设计合理的专利保护提出一些思考。     

高校法学教学中模拟法庭教学模式探析

我国的法学教育一直以来比较偏重理论教学,在法学实践教学方面流于形式,难以满足法律学生实践的需要。模拟法庭教学是法学实践教学方式的一种,要探讨法学实践教学中的模拟法庭教学模式的问题及改进方法,就需改变孤立地研究模拟法庭教学法,而将模拟法庭教学作为法学实践教学中一个教学模式进行系统地探讨。