An investigation of misalignment effects on the performance of acetal gears

This paper concentrates on the effects of misalignment on meshing behaviour of acetal gears as hardly any misalignment investigations on polymer gears in the existing literatures. The experimental results show that the wear of acetal gears is insensitive to radial and axial misalignments but sensitive to yaw and pitch misalignments which degrade the conjugate contact action. Yaw misalignment leads to ‘scoop’ wear marks near tooth pitch points. Pitch misalignment causes ‘superimposed palisade’ wear marks and micro cracks near tooth roots. Compared with metal gears, the effects of small pitch angle on acetal gears are insignificant which may be linked closely to polymer's low elastic modulus. Strikingly different wear striations and various debris morphologies are observed by using scanning electronic and optical microscope (SEM, OM) and misalignment effects can be noted

Let a hundred flowers bloom: The complete text of On the correct handling of contradictions among the people

https://stars.library.ucf.edu/prism/1482/thumbnail.jp

China\u27s new democracy

https://stars.library.ucf.edu/prism/1103/thumbnail.jp

Turning point in China

https://stars.library.ucf.edu/prism/1290/thumbnail.jp

Reconsidering the Barefoot Doctor Programme

This paper examines the widely acclaimed Barefoot Doctor campaign in China. The Barefoot Doctor Campaign has come to symbolize the success of Chinese health care to the extent that it has become a model for WHO public health strategy. Yet little has been done to understand how or whether it worked on the ground and what difficulties and contradictions emerged in its implementation. Using previously unexplored party archives as well as newly collected oral interviews, this paper moves away from a narrow focus on party politics and policy formulation by examining the reality of health care at the local level and the challenges faced by local authorities and individuals as the campaigns evolved

Villain Stardom in Socialist China: Chen Qiang and the Cultural Politics of Affect

Despite playing various kinds of roles across genres from 1949 to 1965, Chen Qiang acquired stardom mainly due to his remarkable screen performance as villainous landlords in socialist China. His villain stardom is an aberrant case, compared to the majority of film stars in Chinese socialist cinema who encouraged identification and emulation and helped propagate socialist ideology to reform Chinese citizens. Paying special attention to socio-historically specific film exhibition practices and the actor's own reflections on his villain performance, this article argues that Chen's stardom functioned as an important affective technology within a wider and complex Communist propaganda enterprise in that it helped cultivate class hatred necessary for the Communist revolution and socialist land reform campaigns. Through this case study, the article suggests that close engagement with both cultural–historical specificities of cinema and recent critical theories of affect open up a space for researching the diversified star phenomena in contemporary China

Segmented publics and the regulation of critical speech in China

In contemporary China strict censorship coexists with significant freedom of expression and restrictions are enforced inconsistently. Yet certain principles underlie determinations of what is acceptable public speech, depending on the institutional location of the utterance, the identity of the speaker and the time of the event. What is allowed depends on the specific circumstances, but it results from patterns in the institutional practices of Chinese politics that involve constraining debate within “segmented publics”. This article analyses how formal and informal rules limit discussions of particular issues to specific segmented publics, and how varying degrees of debate are permitted within these institutional fields, based on the expertise of their members or, in the case of associations, their engagement in specific areas of policy implementation. Another dimension of variation relates to the personalised character of authority in the Chinese system of governance, which means that leaders set the tone for debate within institutional spheres they control. State control, however, is only part of the story: segmented publics are dynamic spaces where boundaries are permeable, often contested, and constantly in formation. The operation of segmented publics is explored here through case studies of activism in the legal field; on women’s rights in the associational field; at the grassroots in resident and villager committees; and in oppositional publics