齿轮啮合原理在滚子-平底共轭凸轮机构中的应用

本文应用齿轮啮合的研究方法来处理滚子-平底从动摆杆共扼凸轮机构,将齿轮研究领域内的相关概念推广到该类机构中去,从而揭示了共轭凸轮机构的本质特征,获得一系列重要参数的精确计算公式。     

圆柱斜齿轮多齿对耦合瞬时啮合刚度的有限元分析

通过本文提出的分析轮齿刚度和齿面接触线载荷分布的新方法——齿面接触线法向刚阵法,用有限元方法编制了专用计算软件,文中给出了计算实例,绘制出考虑多齿对啮合、刚度差异以及边界效应时,斜齿圆柱齿轮轮齿瞬时啮合刚度曲线,并对刚度曲线进行了详细分析.     

单边双联滑移齿轮块操纵机构的设计与计算中的几个问题

本文根据静力平衡原理和摩擦理论对单边受力拨动双联滑移齿轮块操纵机构的设计和计算提供了有效可行的理论依据和计算公式。     

模数制渐开线直齿圆柱齿轮几何要素的测量

本文阐述了渐开线直齿圆柱齿轮顶圆直径及齿轮模数、变位系数和压力角等参数的确定方法和步骤.     

提高齿轮的加工精度探析

本文介绍了采用滚齿、剃齿加工齿轮时,如何提高齿轮加工精度的方法。     

Unfolding female quiet in wargames: gender bias in Metal Gear Solid V: The Phantom Pain from representation to gameplay

This article investigates the cultural mediatization of the relationship between gender and war by looking at the representation and agency of female presence in one of the most popular sagas in video games: Metal Gear Solid. We have specifically focused on the last chapter of the series, Metal Gear Solid V (MGS5) by putting under scrutiny the character of Quiet. The analysis draws upon the rich theoretical corpus of feminist film studies, with reference to two main concepts: the “visual pleasure” by Laura Mulvey and the “female voice” by Kaja Silverman. These analytic tools are employed in order to scrutinize both the visual representation and the design of the game. We argue that MGS5 is a relevant instance of a large part of gaming production that develops a war imagery characterized by (a) the exploitation of women and (b) an employment of female body as a tool to fulfill the visual pleasure of the male gaze. The figure of Quiet, with the oversexualization of her body and the deprivation of her voice, is particularly telling in this respect. Our analysis aims to identify effective solutions in order to think about more inclusive digital games able to address conflictual issues without surrendering to sexism.     

通向未来的护照——美国加州圣荷塞"Gear up 工程"述评

由加利福尼亚圣荷塞州立大学牵头设计实施的"通向未来的护照"项目,是美国教育部Gear up教育创新工程的一个有代表性的地方规划实施模式。本文对工程的立项背景、目标内容、运作过程和结果影响等方面进行了完整的个案研究,为我们系统地了解和借鉴整个Gear up工程的合作伙伴运作模式提供了一个比较完整的模本。