منابع مشابه
On Jack Phillip's Spatial Involute Gearing
This is a geometric approach to spatial involute gearing which has recently been developed by Jack Phillips (2003). After recalling Phillips' fundamental theorems and other properties, some geometric questions around this interesting type of gearing are discussed.
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This is a geometric approach to spatial involute gearing which has recently been developed by Jack Phillips [4]. Due to Phillips' fundamental theorems helical involute gears for parallel axes (Fig. 2) serve also as tooth flanks for a uniform transmission between skew axes, and the transmission ratio is even independent of the relative position of the axes.
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This naturalistic, qualitative research investigated the extent and depth to which the perceived embedded educational skills and concepts associated with gears in a robotics environment were realized. The research literature revealed a paucity and confusion of description and definition of gears, and a lack of articulation of the embedded skills associated with gears. Based on some seminal rese...
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D transcription, RNA polymerase may encounter DNA lesions, which causes stalling of transcription. To overcome the RNA polymerase blocking lesions, the transcribed strand is repaired by a dedicated repair mechanism, called transcription coupled nucleotide excision repair (TC-NER). After repair is completed, it is essential that transcription restarts. So far, the regulation and exact molecular ...
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Muscle fiber architecture, i.e., the physical arrangement of fibers within a muscle, is an important determinant of a muscle's mechanical function. In pennate muscles, fibers are oriented at an angle to the muscle's line of action and rotate as they shorten, becoming more oblique such that the fraction of force directed along the muscle's line of action decreases throughout a contraction. Fiber...
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ژورنال
عنوان ژورنال: Proceedings of the Institution of Mechanical Engineers
سال: 1910
ISSN: 0020-3483,2058-1203
DOI: 10.1243/pime_proc_1910_079_018_02