预给极点的混合有理插值

在插值区间的子区间上基于Thiele型连分式构造插值函数,将连分式插值函数嵌入到重心有理插值之中,并结合预给极点的信息构造混合有理插值.新构造的混合有理插值提高了插值精度,数值例子表明新方法具有很好的逼近效果.     

一类反周期函数插值算子的收敛性

利用差分代替导数研究三角插值问题的基础上,讨论了奇数个等距结点上一类反周期函数的2-周期插值算子的逼近问题,得到了插值解的收敛性结论,是对相应的反周期函数三角插值问题的推广．     

重心有理插值新方法

基于Neville算法,构造建立在重心有理插值基础上的新的复合有理函数插值格式,通过合理选择插值权,可以避免极点与不可达点的存在,新方法不但继承了传统重心有理插值的优点,而且比重心有理插值具有更好的逼近效果.     

多级空间数据插值及其应用方法

分析了海量空间数据信息所面临的数据质量问题,对普通的空间插值方法进行了总结,提出了多级空间插值方法,并给出详细的算法流程. 结合三维地质体建模进行了相关实验研究,结果表明多级插值可以保留三维地质模型的更多模型细节.     

加权平均算法与插值

依据加权平均算法的概念，指出Ｌａｇｒａｎｇｅ插值、Ｎｅｔｏｔｏｎ插值和三点插值实质上是对节点处信息的“折衷”，百这种“折衷”是通过加权平均算法和实现的。     

高次插值的龙格现象的测试

介绍高次插值中龙格现象的产生,并就牛顿插值,利用计算机程序来测试出现龙格现象,给出了相应的算法实现.     

基于图像插值的可逆水印算法研究

可逆数字水印技术目前广泛应用在医学、遥感等多个领域,而现有的可逆水印算法大多是依托附加信息的,对嵌入容量影响较大.基于图像插值提出了一种无附加信息的可逆水印算法,在研究插值图像可逆原理的基础上,探讨了水印的嵌入、提取以及载体还原技术,最后进行实验模拟和结果分析.结果表明,基于图像插值的可逆水印算法具有较高的安全性、较好的隐蔽性、较高的嵌入率以及较强的实用性.     

预给极点的矩阵有理插值

本文建立了预给极点的一元矩阵有理插值模型，利用矩阵Ｓａｍ ｅｌｓｏｎ 逆及矩阵连分式构造了插值算法，并讨论和证明了特征性和唯一性定理，给出了相应的实例     

一类分形插值函数的积分和分数阶积分的性质

文章研究一类具有函数纵向尺度因子的分形插值函数的积分性质.在一定条件下,证明了这类分形插值函数的积分仍是一类分形插值函数,同时,研究当纵向尺度因子发生扰动时,相应的分形插值函数及其分数阶积分的扰动误差估计问题.结果表明,这类分形插值函数及其分数阶积分对函数参量的轻微扰动不敏感.     

一种基于DHT的实数插值并行新算法

提出了实数插值并行算法:采用一种高效优化的1-D插值替代经典公式插值,实现2-D插值,使得运算简便迅速,其计算模式类似于"流水"运行,不需要数据记录和数据暂存设施;而且插值运算时间的复杂性同插值单元因子的复杂性互不相关;每个插值计算周期持续时间相当于执行一个相应的加法运算和乘法运算时间;这为实现高速计算、存储共享的并行处理硬件设施提供了设计依据。     

Impact of product involvement,message format,and receiver sex on the efficacy of comparative advertising messages

Although comparative advertising accounts for nearly half of all television commercial messages, much remains to be learned about its use and effectiveness. This investigation probed the role and impact of receiver involvement in product class, comparative message format, and receiver sex on the relative effectiveness of comparative advertising messages. The results indicate that females and males respond uniquely to comparative advertising, revealing consistent patterns regarding both circumstances and approaches. The findings of this study suggest important nuances for advertising professionals in their efforts to design and to target comparative messages.     

The Influence of Direct and Overheard Messages on Children's Attitudes Toward Novel Social Groups

Individuals often develop negative biases toward unfamiliar or denigrated groups. Two experimental studies were conducted to investigate the extent to which brief negative messages about novel social groups influence children's (4- to 9-year-olds'; N = 153) intergroup attitudes. The studies examined the relative influence of messages that are provided directly to children versus messages that are overheard and examined whether the force of these messages varies with children's age. According to implicit and explicit measures of children's intergroup attitudes, children rapidly internalized messages demeaning novel groups, thus forming negative attitudes toward outgroups merely on the basis of hearsay. These effects were generally stronger among older children, and were particularly pronounced when the message was provided directly to children.     

Marketing the ‘Broad Line’: Invitations to STEM education in a Swedish recruitment campaign

In many Western societies, there is a concern about the tendency of young people not choosing Science, Technology, Engineering, and Mathematics (STEM) education and occupations. In response, different initiatives have been launched. If one believes that science should have a place in more young people's lives, an important question is to what extent recruitment campaigns communicate messages that open up for STEM education to become relevant in young people's identity formation. Here, we analyse a Swedish government-initiated, primarily Internet-based recruitment attempt (‘The Broad Line Campaign’) aimed at increasing the number of young people choosing the natural science programme in upper secondary school. The campaign is based on marketing principles and deliberately draws on identity issues. The data analysed consists of campaign films and written resources describing the campaign. Data are analysed by use of the constant comparative approach in order to produce categories describing different messages about why to engage in STEM education. These messages are then analysed from an identity perspective using the concept of subjective values. Our results show that the messages communicated in the Broad Line campaign emphasise utility value, attainment value and relative cost rather than interest-enjoyment. The campaign communicates that the natural science programme is to be associated with a high attainment value without establishing relations to the field of science. Finally, potential consequences of the communicated messages in the campaign are discussed in light of previous research.     

维吾尔大学生手机短信使用现状及调控——以新疆医科大学为例

手机作为信息传播的新媒介,对维吾尔大学生的思维方式、价值观念、行为模式等方面都产生了重要的影响,文章以新疆医科大学为样本,在全面调查的基础上,分析了维吾尔大学生手机短信的使用现状及流行成因,并提出针对性的行为调控对策。     

长段听力材料中的信息数量及位置对中级汉语听力理解的影响

本文试图以记忆理论为基础,通过实验考察长段听力材料中的信息数量和信息位置是否影响中级汉语听力理解。实验结果表明,信息数量较少时,信息位置的不同对事实题答题正确率的影响不大;当信息数量较多时,信息位置靠后的题目正确率显著高于靠前的题目。结合问卷和访谈的信息,我们认为,在长段听力理解中,答错题的原因不一定是听力能力不足,“遗忘”会影响听力测试的成绩,由此我们提出应将“用笔记录”作为一种听力策略在教学中得到强化。     

知情权入宪问题探讨

知情权的基本含义是指人们享有知悉、获取官方情报和非官方情报的自由和权利。知情权与言论自由权一样应是公民的基本权利,在现代社会有将其在宪法中加以定位的必要。为保障公民基本权利的实现,我国应建立健全知情权相关的法律制度。     

基于客户端/服务器架构的多任务间通信

针对VxWorks是一种嵌入式的实时操作系统,建立了客户端/服务器模式的多任务间通信,各个客户端向服务器发送请求,待允许后向服务器发送消息,服务器接收客户端发送的消息,并以此消息作为应答(ACK)回传给对应的客户端,客户端再根据服务器发送的消息是否是发送给自己的并予以确认此消息。文章还介绍了客户端/服务器多任务间通信的嵌入式实时软件的设计,给出了软件开发流程的主要流程图,并在宿主机上的Tornado集成开发环境(IDE)下进行了仿真。     

The Application of the Cooperative Principle in Text Messages

The language of text messages speeds up the transmission of information,shows the richness of languages,and contains all kinds of implication. Many researches on text messages have been published but the analysis of the languages of text messages in the domain of Grice's cooperative principle is open to investigate. This paper explores the language of text messages based on Grice's Cooperative Principle(CP) and its maxims,which aims to understand how the theory influences the text message communication and create some humorous effect. It is of practical significance to research text messages as a kind of language phenomenon.     

Teachers’ engaging messages and the relationship with students’ performance and teachers’ enthusiasm

The current study examined the relation of students’ performance and teachers’ enthusiasm with teachers’ use of engaging messages in class. These messages can focus on the benefits or disadvantages of engaging in a school task, and appeal to controlled (i.e., extrinsic, or introjected) or autonomous (i.e., identified, or intrinsic) incentives to engage students. Engaging messages were gathered through audio-recorded lessons of 39 teachers in 59 student groups during the second term of the academic year. Results showed that both students’ performance and teachers’ enthusiasm are related to teacher’s use of engaging messages. The better the students’ performance, and the higher the teachers’ enthusiasm, the larger the number of messages used. Moreover, the better the students’ performance, the greater the likelihood of using messages that appeal to extrinsic incentives. By assessing engaging messages through objective observations, we discovered relationships that can help us better understand teachers’ use of engaging message.     

Negotiating Shame,Silence, Abstinence,and Period Sex: Women’s Shift from Harmful Memorable Messages about Reproductive and Sexual Health

Abstract

Early messages about reproductive and sexual health influence personal identities, health behaviors, and ongoing perceptions of sex and sexuality. Women are often socialized with negatively-valenced messages toward understanding their reproductive and sexual health. However, scholarship emphasizes a communicative approach for socializing intimate health behaviors and needs. The present study addresses the communication that prompts a shift in perception from early, harmful memorable messages to a more comprehensive perspective on sexuality. To do so, we qualitatively analyze open-ended survey responses from 191 women. Findings reinforce previous memorable message literature by revealing messages of shame, sex, abortion, childbearing, and fears of infertility. In addition, we extend the memorable messages construct by exploring how more positively valenced messages and individual moments of intervention redirect women in how they understand their intimate health and sexuality.