论司马迁与普鲁塔克人物传记中的历史比较

司马迁与普鲁塔克人物传记中的历史比较具有相同之处,即两者都紧紧围绕传记人物性格的同与异两方面展开,都具有比较发达的历史比较类型意识和明确而细致的比较观念;不同之处则在于,从比较史学的观点来看,普鲁塔克传记的重点是在比较认识的第一阶段———异中求同,侧重于表现传记人物性格的共性和道德理想性,因而其史学比较还局限于道德史学的范畴之中;司马迁则在异中求同的基础上,进一步在同中求异,因而列传中历史人物一方面能够同真实的历史联系起来,以展现历史的个性,突出地体现了传记的史学比较特色;另一方面也表明司马迁的比较史学思想突破了道德史学的桎梏,进入了探求历史规律———“成一家之言”的思想境界。造成这一差异的根本原因在于两者各自历史观念和世界观的不同。从现代传记史学观念来看,司马迁的比较史学观念更符合现代中西史学比较的发展趋向。     

An investigation of the linkage between technology-based activities and STEM major selection in 4-year postsecondary institutions in the United States: multilevel structural equation modelling

Among the disciplines of science, technology, engineering, and math (STEM), much attention has been paid to the influences of math- and science-related learning contexts on students’ STEM major selection. However, the technology and engineering learning contexts that are linked to STEM major selection have been overlooked. In response, a nationally representative sample of young adults in the US was used to investigate the relationship between technology-based activities and students’ STEM major choices in 4-year postsecondary institutions. Multilevel structural equation modelling (ML-SEM) revealed that the frequent use of video or computer games was related strongly to students’ STEM major selections in 4-year postsecondary institutions, after taking into account demographic characteristics and math achievement scores. The results provide evidence that promoting technology-rich learning environments is a significant factor in motivating students to pursue STEM careers.     

情报检索在研究性学习中的作用

文章阐述研究性学习的含义及特点,论述了情报检索在研究性学习中的作用,提出了在计算机情报检索方面图书馆员应做好的几项工作.     

一种基于VB并口通讯的电路板故障诊断系统

本文介绍了在VB中驱动并行口进行通讯的方法，详细说明了PC机和单片机通讯在智能坐便器电路板诊断中的应用。此种诊断方法避免了以往繁琐的检测过程，提高了工作效率，在产品的实际生产尤其是大批量生产中具有广阔的应用前景。     

垄断亦或自由竞争——我国对待商标平行进口的应然选择

随着经济全球化的进程日益加深和我国进出口贸易的迅速发展,商标平行进口已经对我国对外贸易产生重大影响.在国际公约没有作出统一规定、我国知识产权立法尚未完善的情况下,商标平行进口行为的合法与否处于不确定的状态.我国对商标平行进口的模糊态度,既不利于知识产权的保护,也将对我国的国际贸易产生一定的冲击.因此,我国有必要在对各方利益作出衡量后,结合相关法律,尽快对平行进口是否具有合法性问题做出应然的选择.     

网格方程组预处理方法研究

对网格方程组作区域分裂并行计算,应用谱等价胜质讨论了变换在预条件迭代中的作用．将近似LU分解与局部正交化方法相结合构造预处理矩阵,并通过算例证明了这种方法的有效性．     

A parallel memory architecture for video coding

To efficiently exploit the performance of single instruction multiple data （SIMD） architectures for video coding, a parallel memory architecture with power-of-two memory modules is proposed. It employs two novel skewing schemes to provide conflict-free access to adjacent elements （8-bit and 16-bit data types） or with power-of-two intervals in both horizontal and vertical directions, which were not possible in previous parallel memory architectures. Area consumptions and delay estimations are given respectively with 4, 8 and 16 memory modules. Under a 0.18-pm CMOS technology, the synthesis results show that the proposed system can achieve 230 MHz clock frequency with 16 memory modules at the cost of 19k gates when read and write latencies are 3 and 2 clock cycles, respectively. We implement the proposed parallel memory architecture on a video signal processor （VSP）. The results show that VSP enhanced with the proposed architecture achieves 1.28× speedups for H.264 real-time decoding.     

任昉骈文论略

任昉是南朝时期著名骈文家,其骈文体裁多样,对形式特征更为讲究。具体来说,对偶更工整精致,用典更繁密贴切,辞藻更趋华美,声律愈益严谨,体现出成熟骈文的典型特征。     

简单实用的近程双机通讯技术

应用互连技术连接两台计算机,不仅可以实现双机通讯,而且可以实现近程计算机之间系统资源的共享.本着降低设计成本,缩短设计周期,便捷实用的原则,介绍了Windows98本身所具有的进行双机通讯的3种方法.     

大学英语CALL教学模式中的角色定位探讨

当前,CALL教学模式已进入了贵州各地方高校的英语课堂,但由于很多大学英语教师对该教学模式中教师、学生和计算机三个主要教学元素认识不足,导致他们在具体应用CALL教学模式的过程中遇到了很多问题与挑战。因此,大学英语教师应正确认识CALL教学模式下教师、学生和计算机的角色,这是确保大学英语教学活动顺利和成功开展的关键。大学英语教师在开展CALL教学活动时,必须要正确发挥自己的角色功能和作用,恰当和合理地利用计算机、多媒体和网络等媒介,更要积极引导学生进行角色转变。