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The term human biocomputer, coined by Lilly, refers to the "hardware" of the human anatomy. This would include the brain , internal organs , and other human organ systems such as cardiovascular , digestive , endocrine , immune , integumentary , lymphatic , muscular , nervous , reproductive , respiratory , skeletal , and urinary systems.
For microwave radiation, the features are on the order of millimeters. Microwave frequency metamaterials are usually constructed as arrays of electrically conductive elements (such as loops of wire) that have suitable inductive and capacitive characteristics. Many microwave metamaterials use split-ring resonators. [5] [6]
Taking thermal metamaterials as an example, the characteristic length for conductive thermal metamaterials is the thermal diffusion length. [24] Convective thermal metamaterials are characterized by the migration length of the fluid, while radiative thermal metamaterials hinge on the wavelength of thermal radiation.
The history of metamaterials begins with artificial dielectrics in microwave engineering as it developed just after World War II. Yet, there are seminal explorations of artificial materials for manipulating electromagnetic waves at the end of the 19th century. [ 1 ]
While early mechanical metamaterials had regular repeats of simple unit cell structures, increasingly complex units and architectures are now being explored. Mechanical metamaterials can be seen as a counterpart to the rather well-known family of optical metamaterials and electromagnetic metamaterials. Mechanical properties, including ...
Robotic materials are composite materials that combine sensing, actuation, computation, and communication in a repeatable or amorphous pattern. [1] Robotic materials can be considered computational metamaterials in that they extend the original definition of a metamaterial [2] as "macroscopic composites having a man-made, three-dimensional, periodic cellular architecture designed to produce an ...
Celebrities, kids, fans, random people in the toy store — they've all got a friend in Shaquille O'Neal. As O'Neal, 52, gears up for his annual Shaq's Fun House party during Super Bowl weekend ...
[6] [7] In metamaterials, cells take the role of atoms in a material that is homogeneous at scales larger than the cells, yielding an effective medium model. [3] [4] [8] [6] [9] Some photonic metamaterials exhibit magnetism at high frequencies, resulting in strong magnetic coupling. This can produce a negative index of refraction in the optical ...