基于CLA模型的LGD英语口语教学设计研究

交际语言能力模型（CLA模型）认为语言交际能力是把语言知识和语言使用的场景特征结合起来、创造并解释意义的能力。CLA模型由语言能力、策略能力和心理生理机制组成。无领导小组讨论（LGD）是一种人力资源评价的方式。本文从交际语言能力模型应用的视角将LGD教学导入外语口语教学,用教学实例证明LGD口语教学的可行性,同时对CLA模型进行了检验和反思。     

Reduction of electromagnetic field coupling to microwave microstrip circuits

The signals induced by an external electromagnetic field along a microstrip line on a multilayered dielectric substrate were studied. The main target of the work is not to introduce a new technique of study but to search for suitable combinations of the structural and geometrical characteristics of the printed geometry whereby the electromagnetic interference of the external field to the circuit would be reduced. This reduction is desirable in all modern applications. The results derived prove that this object can be achieved at high frequencies and when the substrate is multilayered.     

基于家庭的DV节目制作

利用普通计算机设备,通过系统规划、选择恰当的编辑软件、采用合理的编辑步骤与技巧,把握制作规律、就能制作出高质量的家庭纪念光盘.     

一种新的水压试验方法--盲板法

通过引大入港输水工程的应用实例,对给水管道工程的水压试验方法——盲板法.文中在进行理论推导的同时,与常规的靠背法进行了比较,实践证明,该方法安全可靠,可使试验费用大大降低.盲板法是水压试验中一套思路新颖、理论可靠、经济可行的新方法.     

"辐射防护体系演进"中一些问题的讨论

从中国辐射防护的实践看，现行辐射防护体系进行适当简化和更加协调一致是必要的。仅仅基于保护人的防护举措不是在各种情况下均能满足环境的要求。辐射防护的含意应该包括保护环境免受电离辐射的影响。集体剂量是一个有用的但需要明确其应用范围的指标。它的应用有利于促进辐射防护水平的提高，但应明确其应用的条件，如时间和空间等。天然辐射是人类所受照射的最大来源。有必要控制天然辐射产生的职业照射，如地下矿工和航空机组人员。加强控制人工辐射和天然辐射对孕妇和儿童的照射是重要的，其中特别是放射诊断和治疗。     

线路故障与供电可靠性措施探讨

针对西藏中部电网供电可靠性的突出问题，从电力系统内部出发，分析各种故障特性和电气参数的变化，探讨解决问题的途径和方法。     

Cross-cutting exposure on social networking sites: The effects of SNS discussion disagreement on political participation

Drawing on a national probability survey, this study explores the relationship between discussion disagreement on social networking sites and political participation by focusing on the intervening effects of political discussion and news use. The results revealed that discussion disagreement on SNSs inhibits off- and online political participation, and this relationship is partially mediated by the frequency of SNS political discussion. Furthermore, the frequency of news-related activities on SNSs is found to moderate the mediating effect of political discussion. The implications are discussed.     

Commercial farmers’ strategies to control water resources in South Africa: an empirical view of reform

This article shows how large-scale commercial farmers, individually and collectively, are responding to land and water reform processes in the Thukela River basin, KwaZulu-Natal, South Africa. With a high degree of innovative agency, commercial farmers have effectively executed four strategies, enabling them to adapt and use their access to resources to neutralize multiple water reform efforts that once promised to be catalysts for inclusive change in the post-apartheid era. It is likely that policy alone will not facilitate the envisioned transformation, if local practices are not sufficiently understood and anticipated by the governmental officials charged with the implementation of water reform processes.     

陶土材料在外装饰工程中的应用

阐述了陶土材料的性能特点.结合工程实例,介绍了陶砖、陶瓦、陶板的施工工艺及操作要点.将陶砖、陶瓦、陶板用作屋面与立面装饰材料,使传统材料与现代建筑有机地结合在一起,既保持了传统风格,又表现出现代的时尚设计.     

平面切换对信号传输特性影响的一种分析方法

采用"场"、"路"结合的方法研究了多层印制电路板参考平面的切换对信号完整性的影响.分析了过孔转换结构中返回电流的路径,通过"场"的方法获得两参考平面间的瞬态阻抗.将过孔转换结构等效为二端口网络,推导了基于等效电路拓扑结构的S参数与节点电压的关系,获得S参数的计算公式.计算了5 GHz内不同的过孔半径和参考面间距的回波损耗与插入损耗.结果表明:返回电流所受到的阻抗随参考平面间距的减小.而减小信号过孔的半径越小,回波损耗就越小,插入损耗越大,过孔转换结构对信号完整性的影响也越小.计算结果与全波有限元电磁仿真的结果基本吻合.