基于MATLAB的通信系统动态仿真研究

介绍运用MATLAB环境下的交互式模型输入与仿真环境－SIMULINK进行通信系统可视化建模及动态仿真的方法,典型仿真范例及结果表明MATLAB／SIMULINK是通信系统仿真的有力工具。     

企业经营战略管理专家系统的设计与实现

使用ＰＲＯＬＯＧ程序设计语言,推理机采用逆向推理方式,构造了一个经营战略管理专家系统。系统作为一种较好的方法和工具,用以辅助企业决策者作出正确的战略造反保障企业长期稳定的发展。     

"房地产泡沫"语境下的房地产企业创新发展研究

分析了在"房地产泡沫"语境下的房地产企业的发展现状及存在的问题,指出本着长期可持续发展的思想制定发展战略,房地产企业要积极自主规范"诚信服务"的理念,加强房地产企业的危机管理能力,寻找即使房地产泡沫破灭也不易受影响的弥隙市场进行发展,在激烈的市场竞争中回归理性.     

Understanding is not simulating: a reply to Gibbs and Perlman

In this response, I do four things. First, I defend the claim that the action compatibility effect does not distinguish between embodied and traditional accounts of language comprehension. Second, I present neuroimaging and neuropsychological results that seem to support the traditional account. Third, I argue that metaphorical language poses no special challenge to the arguments I gave against embodied theories of comprehension. Fourth, I lay out the architecture of language I advocate and suggest the sorts of data that would decide between traditional and embodied accounts.     

Adult hippocampal neurogenesis: regulation by HIV and drugs of abuse

New dentate granule cells are continuously generated from neural progenitor cells and integrated into the existing hippocampal circuitry in the adult mammalian brain through an orchestrated process termed adult neurogenesis. While the exact function remains elusive, adult neurogenesis has been suggested to play important roles in specific cognitive functions. Adult hippocampal neurogenesis is regulated by a variety of physiological and pathological stimulations. Here we review emerging evidence showing that HIV infection and several drugs of abuse result in molecular changes that may affect different aspects of adult hippocampal neurogenesis. These new findings raise the possibility that cognitive dysfunction in the setting of HIV infection or drug abuse may, in part, be related to alterations in hippocampal neurogenesis. A better understanding of how HIV and drugs of abuse affect both molecular and cellular aspects of adult neurogenesis may lead to development of more effective therapeutic interventions for these interlinked epidemics. Received 6 February 2007; received after revision 26 March 2007; accepted 25 April 2007     

基于UML的SMP2模型设计方法研究

SMP2标准缺少对仿真概念建模环节的支持,建模人员难以直接进行SMP2模型设计。提出将UML作为SMP2的概念建模工具,使得SMP2设计模型可由UML模型自动生成。研究了UML到SMP2设计模型的元模型映射关系,构建了面向SMP2设计模型的UML Profile,基于XSLT设计实现了UML模型到SMP2设计模型的自动转换,进行了实例验证。     

波干涉现象的三维图像仿真设计

采用G语言程序设计相干波的三维仿真图像,它的特点是利用G语言程序的函数控件组合设计,设计思路简洁,设计的仿真程序实现相干波图形的三维效果良好,且能方便实现各种参数变化的相干波图.     

“C语言程序设计”课程案例驱动教学模式的研究与实践

针对＂C语言程序设计＂传统教学模式存在的弊端,本文提出采用案例驱动教学模式开展该门课程的教学,具体探索了＂C语言程序设计＂课程教学案例的选择以及如何组织实施.实践证明,在课堂及实验教学环节中应用案例驱动教学模式,能够增强学生的学习兴趣,提高学生的动手能力,取得良好的教学效果.     

英语习得与英语应用各阶段特征分析

根据目前中国英语教学的现状,可以将英语学习分成三个阶段:语言兴趣时期;语言学习时期;语言提高时期。分别对应于小学、中学和大学。各个时期的英语习得和英语应用有着不同的特征。了解和研究这些特征,对英语习得和英语教学有着十分重要的意义。     

试论广播电视节目主持人思维和语言功底

广播电视主持人思维是主观能动性的积极发挥,语言表述受情感支配。主持人应注重思维积累,拥有丰厚的文化底蕴;应发挥思维的主观能动性,海纳百川,集众家之长;应突出语言个性,展现语言魅力。