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"O-rings are one of the most common seals used in machine design because they are inexpensive, easy to make, reliable and have simple mounting requirements. They have been tested to seal up to 5000 psi of pressure." "The O-ring may be used in static applications or in dynamic applications where there is relative motion between the parts and the O-ring. Dynamic examples include rotating pump shafts and hydraulic cylinder pistons. Static applications of O-rings may include fluid or gas sealing applications in which: (1) the O-ring is compressed resulting in zero clearance, (2) the O-ring material is vulcanized solid such that it is impermeable to the fluid or gas, and (3) the O-ring material is resistant to degradation by the fluid or gas."
This youtube video also explains a few things well: https://www.youtube.com/watch?v=aweDWuNkPw0 Works Cited: 1 There are many different types and designs of push nut. One of them is like this. " Push nuts eliminate costly threading and grooving operations, facilitate rapid assembly, and once fixed in position, are so secure that they cannot be removed without destruction." A video showing it: https://www.youtube.com/watch?v=UrBN-sG9c0w
Works Cited: 1 Illumination Entertainment owned by Universal Pictures, a division of NBCUniversal, which is a division of Comcast. Universal Pictures also owns DreamWorks Animation. Illumination was founded by Chris Meledandri in 2007. Before he founded Illumination, he worked in both Disney and Fox Animation. After NBCUniversal acquired DreamWorks in 2016, Meledandri have helped both DreamWorks and Illumination.
Works Cited: 1 2 Smell sensors are often called by "electronic noses". “In most electronic noses, each sensor is sensitive to all volatile molecules but each in their specific way. However, in bio-electronic noses, receptor proteins which respond to specific odor molecules are used.” "Electronic sniffers are also being tested for their ability to detect disease, by sensing blood glucose levels from one’s breath and sniffing out gut disease from samples of poop. "
"E-noses come in a variety of architectures, but most rely exclusively on chemical sensors, such as metal oxides or conducting polymers. " "For sniffing the smells: Odor samples are pushed across these sensors by small air pumps that can be programmed to take up puffs of air in a pattern." One of the challenges that electronic noses are facing is that the accuracy. Many researchers have raised the accuracy to about 95%, but it is still very hard to meet 100% as I am assuming that will involve a tremendous set of data Works Cited: 1 2 3 4 |
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