Results 251 to 260 of about 32,209 (291)

Key attributes of nitrocellulose-based energetic materials and recent developments. [PDF]

open access: yesHeliyon
Abdul Rahim KS   +6 more
europepmc   +1 more source

Rotating propeller soliton

Nonlinear Guided Waves and Their Applications, 2001
We demonstrate experimentally and theoretically (both analytically and numerically) a new type of spatial soliton: a rotating "propeller" soliton. This is a composite soliton made of a rotating dipole component jointly trapped with a bell-shaped component. We observe as much as 239 degrees of rotation over 13 mm of propagation (6.5 diffraction lengths).
T, Carmon   +5 more
openaire   +2 more sources

Propeller Injuries

Southern Medical Journal, 1976
Water skiing, boat racing, skin and scuba diving, and pleasure boat cruising are increasing in popularity. As a result the incidence of injuries secondary to motor propellers is becoming more frequent. In a ten-year period from 1963 to 1973, I collected a total of nine cases.
openaire   +2 more sources

Propellers:

Aeronautical journal (London, England : 1897), 1914
The material for this paper was collected for a written communication to the Research Committee for publication in The Aëronautical Journal, in the form of a brief annotated account of the work of a number of experimenters on the performance of the screw propeller in air and water; but, at the request of the Council, a month ago, the article has been ...
openaire   +1 more source

Self-propelling slugs

Journal of Fluid Mechanics, 2002
Surface coating is generally achieved by an active operation: painting with a brush; withdrawing from a bath. Porous imbibition constitutes a more passive way: a porous material just put in contact with a reservoir containing a wetting fluid is spontaneously invaded. In this case, the material can eventually be filled by the fluid. If the aim is to
Bico, José, Quéré, David
openaire   +1 more source

Propelled

2020
Abstract Weaving together stories from sources as wide-ranging as classical literature, social and cognitive psychology, philosophy, art, and video games, Propelled: How Boredom, Frustration, and Anticipation Lead Us to the Good Life makes a lively case for the value of discontent in our lives.
openaire   +1 more source

Self-Propelled Nanotools

ACS Nano, 2012
We describe nanoscale tools in the form of autonomous and remotely guided catalytically self-propelled InGaAs/GaAs/(Cr)Pt tubes. These rolled-up tubes with diameters in the range of 280-600 nm move in hydrogen peroxide solutions with speeds as high as 180 μm s(-1).
Alexander A, Solovev   +6 more
openaire   +2 more sources

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