scholarly journals The bicycle wheel analogy for linear closures of small suborbital cheek defects

2020 ◽  
Vol 26 (4) ◽  
Author(s):  
Brett C Neill ◽  
Edward W Seger ◽  
Anand N Rajpara ◽  
Tyler A Hooton ◽  
Thomas LH Hocker
Keyword(s):  
Author(s):  
Danielle Child

In 1916, the French artist Marcel Duchamp coined the term "readymade" to describe a body of his own work in which everyday and often mass-produced objects were given the status of a work of art with little or no intervention by the artist beyond signing and displaying them. He began to produce these works in Paris, beginning with Bottle Rack (1914) and Bicycle Wheel (1913). (Duchamp, however, did not explicitly acknowledge these works until his move to New York in 1915.) These two works present examples of the two distinct types of readymades: readymade unaided and readymade aided. The most well-known readymade is Duchamp’s Fountain (1917), which was famously refused entry into an exhibition with no entry conditions. Much later, Fountain became symbolic of the emergent shift from modernism to postmodernism in the 1960s, with the group of artists who gathered around the composer John Cage, including Robert Rauschenberg and Jasper Johns, sometimes referred to as the neo-avant-garde. It was during this period that Duchamp’s account of the function of the readymade was consolidated into the now common understanding, which is that "readymade" constitutes an object chosen by an artist and declared to be art.


2002 ◽  
Vol 12 (08) ◽  
pp. 1843-1857 ◽  
Author(s):  
ERIK M. BOLLT ◽  
AARON KLEBANOFF

We present two new, and perhaps the simplest yet, mechanical chaos demonstrations. They are both designed based on a recipe of competing nonlinear oscillations. One of these devices is simple enough that using the provided description, it can be built using a bicycle wheel, a piece of wood routed with an elliptical track, and a ball bearing. We provide a thorough Lagrangian mechanics based derivation of equations of motion, and a proof of chaos based on showing the existence of an embedded Smale horseshoe using Melnikov's method. We conclude with discussion of a future application.


2005 ◽  
Author(s):  
Tim Bauer ◽  
Nathan Lorenz ◽  
Rudolf H. Stanglmaier ◽  
Bryan Willson ◽  
Steven Katsaros ◽  
...  
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1995 ◽  
Vol 20 (1) ◽  
pp. 177-177
Author(s):  
T. W. Patton ◽  
G. P. Dively ◽  
L. Hellman

Abstract Four liquid insecticide evaluation studies were conducted at three sites in Beltsville, Uniontown, and Burkittsville, MD. Corn was planted no-till on 29 Apr and 15 May at Burkittsville and Beltsville, respectively. Conventionally tilled corn was planted at Uniontown I and II on 29 Apr and 13 May, respectively. Treatment plots were 4 rows × 50 ft arranged in a RCB with 3 replications. Furadan 4 F broadcast was applied with a COz backpack sprayer calibrated to deliver 21 gpa at 40 psi. Force 1.5 G was applied in a 7 inch band over the row with a hand powered bicycle wheel applicator. Both treatments were made at or near planting. Post-planting treatments of Furadan 4F were directed at the base of the plant in a 11 inch band during 8-10 Jun with a CO2 backpack sprayer delivering 12 gpa at 40 psi. Root damage was evaluated during 7- 12 Jun. Six roots were dug, washed, and rated in accordance to the Iowa 1-6 scale. Yields were determined by hand harvesting 50 ft of row. Percent moisture was measured for each plot and used to convert yields to 15.5%.


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