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Shearing layers is a concept coined by architect Frank Duffy, which was later elaborated by Stewart Brand in his book, How Buildings Learn: What Happens After They're Built (Brand, 1994), and refers to buildings as composed of several layers of change. The concept has been adopted by a number of technology vendors to also describe the different ...
Francis Cuthbert Duffy CBE FRIBA (born 3 September 1940 [1]) is a British architect, a founder of DEGW, the international architectural and design practice best known for office design and workplace strategy and, more recently for advanced thinking on the programming of educational and arts facilities.
Brand states that a supply of simple, low-cost, easily modified buildings is key to innovation and economic growth. He implies that an expanding property-value market may actually slow innovation and produce a less human-centered community. Among other things, the book details the notion of Shearing layers.
The thin shear layer which develops on an oscillating body is an example of a Stokes boundary layer, while the Blasius boundary layer refers to the well-known similarity solution near an attached flat plate held in an oncoming unidirectional flow and Falkner–Skan boundary layer, a generalization of Blasius profile.
This method uses a vibrator to send the shear waves into the tissue and magnetic resonance imaging to view the response in the tissue. [11] The measured wave speed and wavelengths are then measured to determine elastic properties such as the shear modulus. MRE has seen use in studies of a variety of human tissues including liver, brain, and ...
Shear velocity, also called friction velocity, is a form by which a shear stress may be re-written in units of velocity.It is useful as a method in fluid mechanics to compare true velocities, such as the velocity of a flow in a stream, to a velocity that relates shear between layers of flow.
Cirrus uncinus ice crystal plumes showing high-level wind shear, with changes in wind speed and direction. Wind shear (/ ʃ ɪər /; also written windshear), sometimes referred to as wind gradient, is a difference in wind speed and/or direction over a relatively short distance in the atmosphere. Atmospheric wind shear is normally described as ...
The rectangularly-framed section has deformed into a parallelogram (shear strain), but the triangular roof trusses have resisted the shear stress and remain undeformed. In continuum mechanics, shearing refers to the occurrence of a shear strain, which is a deformation of a material substance in which parallel internal surfaces slide past one another.