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Advanced air mobility (AAM) are systems that incorporate support for next-generation transport such as such as remotely piloted, autonomous, or vertical take-off and landing (VTOL) aircraft. [1] [2] [3] This includes those powered by electric or hybrid-electric propulsion. [4] AAM seeks to support unmanned aerial systems (UAS) and sustainable ...
The National Advanced Air Mobility Center of Excellence is a research facility dedicated to studying air mobility and Unmanned Aircraft Systems (UAS). It contains 30,000 square feet of administrative, laboratory, meeting, and collaboration space with an additional 25,000 square feet of aircraft hangar space.
Urban air mobility is a subset of a broader advanced air mobility (AAM) concept that includes other use cases than intracity passenger transport; [1] NASA describes advanced air mobility as including small drones, electric aircraft, and automated air traffic management among other technologies to perform a wide variety of missions including ...
Gliding motility is a type of translocation used by microorganisms that is independent of propulsive structures such as flagella, pili, and fimbriae. [1] Gliding allows microorganisms to travel along the surface of low aqueous films. The mechanisms of this motility are only partially known.
Motility differs from mobility, the ability of an object to be moved. The term vagility means a lifeform that can be moved but only passively; sessile organisms including plants and fungi often have vagile parts such as fruits, seeds, or spores which may be dispersed by other agents such as wind, water, or other organisms.
Here, ρ represents the density of the fluid; u is a characteristic velocity of the system (for instance, the velocity of a swimming particle); l is a characteristic length scale (e.g., the swimmer size); and μ is the viscosity of the fluid.
An examination (exam or evaluation) or test is an educational assessment intended to measure a test-taker's knowledge, skill, aptitude, physical fitness, or classification in many other topics (e.g., beliefs). [1] A test may be administered verbally, on paper, on a computer, or in a predetermined area that requires a test taker to demonstrate ...
Cross-sectional view of the structures that can be formed by phospholipids in an aqueous solution. A biological membrane, biomembrane or cell membrane is a selectively permeable membrane that separates the interior of a cell from the external environment or creates intracellular compartments by serving as a boundary between one part of the cell and another.