多种梁拱曲线的计算机模拟拟合

在常用的直线法作梁拱曲线的基础上,本文进行了包括直线法、半圆法及全圆法3种船用梁拱曲线几何作图所需特定点公式的推导,列出计算机模拟拟合所需系数公式,进行程序设计及计算机绘图。     

对外汉语高级阶段口语教学浅析

高级口语教学是对外汉语教学的一个重点.如何提高口语课的教学效果一直是教师们关注的问题.本文从不同的教学模式出发,指出高级阶段口语的特点是培养学生的语段表达能力及表达的多样性和得体性.根据这一特点应对教材做二次处理,采用一些行之有效的教学方法,激发学生的交际欲望.同时列举了口语教学中的考试方法.     

立足Pro/E,提高《模具设计》教学可视性

从地方本科院校高分子加工专业主干课程《塑料成型模具》教学改革入手,积极引入计算机辅助设计软件Pro/Engineer,提高教学过程的可视性和趣味性。     

Ukrainian Ex Libris in the Slavonic Library in Prague

A rare cache of over 200 Ukrainian ex libris recently discovered in the Slavonic Library of the Czech National Library in Prague serves as the primary focus of this article. As a unique archival resource, the bookplates not only shed light on the social fabric of the Ukrainian émigré community in Czechoslovakia between the two world wars, but tell of aesthetic pursuits that would seek to reconcile modernity with Ukrainian artistic traditions. In all, the collection informs on the tastes and personalities of Ukrainian cultural luminaries in interwar Europe. As part of a larger proposed project—Ukrainian Émigrés in Czechoslovakia (1918–1945)—these ex libris will be incorporated and preserved as part of a digitized catalogue unifying émigré posters, leaflets, and other ephemera of the interwar period, including invitations called pozvanki.     

中国传统美育观与当代人格塑造

孔子、蔡元培等人提出了较为深刻的美育思想。中国当代的人格塑造应从这些传统美育观中吸取注重扬美弃丑、注重艺术、注重非功利等美育精髓，在社会中培养具有人格美的当代人。     

Mesocycles in conserving plastics

Analysis suggests that progress in conservation of plastics objects and artworks can be described by a series of overlapping mesocycles. Focus has been placed for periods of 5–10 years each on determining the degradation pathways in the 1990s, developing strategies to inhibit those pathways from the late 1990s and, since 2006 on actively stabilizing and treating the symptoms of degradation. The primary driving forces behind the direction and rate of progress within each of these three mesocycles have been different and specific. The controlling factor in understanding degradation pathways for heritage plastics has been the origin of the data describing lifetimes. By contrast, mesocycles in developing suitable storage and display microclimates for plastics have mirrored preventive conservation practices for natural polymeric materials. The rate of the third mesocycle, interventive conservation, has been driven by the need to balance the requirements for reversibility in conservation practices with the artist's intent and significance. Developments within each of the three mesocycles from the 1990s to date are discussed in this article. Environmental science and toxicology of waste plastics offer a novel source of information about real time degradation in terrestrial and marine microenvironments that seems likely to contribute to the conservation of similar materials in contemporary artworks.     

《马氏文通》对中国语文研究传统的继承与发展

《马氏文通》是我国第一部系统的语法著作,它与西方语法体系和它与中国语文传统之间的关系一直是学者们研究的着手点之一。《马氏文通》和中国语文研究传统有着密切的关系,对此,从《文通》与中国古代语文理论、《文通》中的文章学思想、《文通》中的辞气论、《文通》中的古典文化气息四个方面分析阐释了《马氏文通》对中国语文研究传统的继承与发展。     

利用塑料薄膜大棚提早养殖罗非鱼研究

本试验在水面为180m2的塑料大棚内进行,3月20日投放越冬罗非鱼种12.9kg,尾数315尾.5月21日揭去塑料薄膜开始露天养殖,在塑料大棚中共饲养60天,收获罗非鱼48.9kg,尾数311尾,个体平均重157.5g,成活率98.7%,另外收获鲢鳙鱼10.8kg.     

超静定杆系极限载荷的计算

用普朗特简化曲线为理论依据，按极限载荷法对简单起静定杆系结构进行强度计算比较容易。同样也可进行强度问题的三种计算。     

项目教学法在模具设计与制造专业教学中的应用

项目教学法是师生通过共同实施一个完整的项目工作而进行的教学行动,其关键是设计和制定一个项目的工作任务。本文以职业分析为基础,精选两个典型的职业工作任务为项目,引导学生按照其工作过程制定计划、实施计划,师生共同检查、评估和交流工作结果。