53,035 research outputs found
Wire electric-discharge machining and other fabrication techniques
Wire electric discharge machining and extrude honing were used to fabricate a two dimensional wing for cryogenic wind tunnel testing. Electric-discharge cutting is done with a moving wire electrode. The cut track is controlled by means of a punched-tape program and the cutting feed is regulated according to the progress of the work. Electric-discharge machining involves no contact with the work piece, and no mechanical force is exerted. Extrude hone is a process for honing finish-machined surfaces by the extrusion of an abrasive material (silly putty), which is forced through a restrictive fixture. The fabrication steps are described and production times are given
They Survived the Conversion from 35mm to Digital, so Now What? The Future of America’s Small-Town Art House Theaters
This paper explores the vital role art house movie theaters play in their communities, particularly in bringing film culture to small towns. I argue that art house theaters have a symbiotic relationship with their communities (particularly small towns) in which the art houses play a vital role in bringing culture to their downtown communities, and these communities are ardent supporters of art house theaters, helping them convert from 35mm to digital and continue to thrive. I explore two art house movie theaters in great detail as case studies, the County theater in Doylestown, PA and Gettysburg\u27s Majestic theater, to prove that art houses are staples of small towns and play a cultural role so vital that they have overcome major changes in technology and appear to have a bright future
Disentangling religion and culture: americanizing Islam as the price of assimilation
This essay is an exploration into the social inevitabilities of culture shifts within the American Muslim community’s self-understanding of their faith. Rather than a theological explication of the reasons why and why not Islam may or can or will not assimilate in America, our approach will be strictly sociological thereby side-stepping the intricate dialectic of theological niceties in deference to the social realities of culture change. As a social psychologist, my duty is to acknowledge the inevitabilities of behavioral shifts brought about due to social and cultural pressures resulting from immigration into an alien cultural weltanschauung, i.e., worldview. Therefore in this essay, we will explicate the meaning and nature of de-ethnicization and re-enculturation as we endeavor to disentangle religion from culture, recognizing that much of what goes under the flag of religious orthodoxy is really culturally-mandated behavior and worldview. The assimilation process, however, will bear heavily upon the necessity for Muslim clergy in America to become professional by Western standards and we will in the process explore the complexities of religious secularism as a way of becoming an “American” Muslim. Finally, we will suggest liturgical and architectural “adjustments” to Western modes of public worship while indicating linguistic niceties which will prove helpful in the assimilation process which we have chosen here to call the “Islamicization of America”
Children and young people’s wellbeing monitor for Wales: evidence review; report prepared on behalf of the Welsh Assembly, Government Social Research Division
Preliminary design of an Earth-based debris detection system using current technology and existing installations
A simple instrument based on present-epoch technology for optical detection of orbital debris is described. The limits of detectability at various altitudes and under different operating conditions for this system are assessed. The kinds of information which can be deduced from this data are examined. Optimal systems for debris detection are discussed. Alternatives and possible improvements from new technologies are also considered
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