Operating systems

The objectives and stages of operating systems introduced in Part 1 are continued here. Four major components —process management, input-output (I/O) device management, memory management, file management and protection are discussed.     

Random vibration analysis of switching apparatus based on Monte Carlo method

The performance in vibration environment of switching apparatus containing mechanical contact is an important element when judging the apparatus’s reliability. A piecewise linear two-degrees-of-freedom mathematical model considering contact loss was built in this work, and the vibration performance of the model under random external Gaussian white noise excitation was investigated by using Monte Carlo simulation in Matlab/Simulink. Simulation showed that the spectral content and statistical characters of the contact force coincided strongly with reality. The random vibration character of the contact system was solved using time (numerical) domain simulation in this paper. Conclusions reached here are of great importance for reliability design of switching apparatus.     

水稻免耕栽培生理基础——Ⅱ.免耕水稻的光合特性

威优64、陆青早1号作为试验材料,免耕能提高功能叶的光合速率、生育前期功能叶的呼吸强度、绿叶面积、叶绿素和可溶性蛋白含量,并延缓它们在生育后期的下降速率,降低后期功能叶的呼吸速率。主分量分析说明,在研究光合作用时,光合强度、叶绿素、可溶性蛋白质、叶片含氮量,可以任意选择一个作为光合特性指际。粒/叶比说明,免耕对源的改善较对库的改善较好些。     

英汉互译中的跨文化交流意识

翻译是跨文化交流过程中时常涉及的一个中介环节。本文在英汉互译中 ,引入跨文化交流意识 ,旨在立足于传统翻译学对翻译的认识上 ,从跨文化角度深化翻译的内涵 ,并通过分析翻译实践与某些文化因素之间的关联 ,突现出翻译中易出现的文化方面的问题 ,进一步探讨了翻译中应持的文化态度以及翻译者应具备的文化素质     

应用型本科CAD/CAM课程教学改革之初探

围绕应用型本科的培养目标和机械设计制造及自动化专业CAD/CAM课程教学的特点,从教学内容、教学方法、教学模式、考试方法及提高教师自身素质等方面的教学改革进行有益的尝试和探讨.     

和谐发展:反对消费主义

作为西方现代化产物的消费主义是现代资本的逻辑结果,与资本主义增长型发展观紧密相连。但它并不是现代化理想的实现,而是现代化畸形的片面发展,导致现代人生存的全面异化和一系列生存危机。和谐发展观作为救治现代生存病症、反对消费主义的一种努力,在人与自然的维度上,限制人类对自然的掠夺性消费,重建人与自然包括审美关系在内的全面健康、和谐共生的关系。在人与人、人与社会的维度上,把人际关系从单一的商品生产—消费关系及其衍生关系中解放出来,恢复亲情、友谊、伦理等丰富多元、和谐相处的人际关系。在人与自我的维度上,对“经济人”“消费者”的设定应持一种审慎的批判态度,彰显可能被其遮蔽的人之存在的所有可能性维度,尤其要恢复人的终极关切和敬畏。     

Paired peer learning through engineering education outreach

ABSTRACT

Undergraduate education incorporating active learning and vicarious experience through education outreach presents a critical opportunity to influence future engineering teaching and practice capabilities. Engineering education outreach activities have been shown to have multiple benefits; increasing interest and engagement with science and engineering for school children, providing teachers with expert contributions to engineering subject knowledge, and developing professional generic skills for engineers such as communication and teamwork. This pilot intervention paired 10 pre-service teachers and 11 student engineers to enact engineering outreach in primary schools, reaching 269 children. A longitudinal mixed methods design was employed to measure change in attitudes and Education Outreach Self-Efficacy in student engineers; alongside attitudes, Teaching Engineering Self-Efficacy and Engineering Subject Knowledge Confidence in pre-service teachers. Highly significant improvements were noted in the pre-service teachers’ confidence and self-efficacy, while both the teachers and engineers qualitatively described benefits arising from the paired peer mentor model.     

谈节目主持人栏目的固定性与受众的相对稳定性

节目主持人以真实自我面对受众,其真实的声音、形象、个性特征对主持人节目的成功起着重要作用。主持人个性化的主持风格为受众所认同就意味着该主持人及其栏目有了一定的受众,其主持人的固定性关系到栏目的发展和受众群的相对稳定性。     

WinSock控件在网络编程中的应用

WinSock控件是Windows应用程序和TCP/IP之间的一个接口控件。借助于WinSock控件可以有效地对网络进行编程。在论述了WinSock控件的原理及其特点的同时,重点给出了在VB下开发基于WinSock控件的网络通信程序及邮件处理程序的方法。     

La Parte Chusca of a Pedagogical Here and Now: Oaxacan Teachers’ Heteroglossic Joking About State Repression and Educational Reform

Faced with repression and reform, humor has become tactical for public school teachers in Oaxaca, Mexico, engaged in a decades-old movement that after 2006 involved intensified street- and school-based pedagogies. This piece explores how humor adds to a political project via mocking names, images, and dictates of elite leaders to bring a here and now to what is taken as inaccessible in the teachers’ political lives. Humor forms part of an (e)sc(h)atology in which critical practices are part eschatological, a call for definite transformation, and part scatological, embodied vulgarity. La parte chusca (the funny part), its (e)sc(h)atological contribution, angles toward critical literacies in Oaxaca and beyond.