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3D target — animal/human-shaped mannequin, commonly made from plastic/fiberglass, corkwood or high-density styrofoam/foam rubber, though some exotic models (e.g. the infamous "The Ex") have elaborately designed internal contents resembling anatomical organs, skeletons and blood and may even be overmolded with ballistic gelatin.
Industrial Insulation. Rigid polyurethane foam is used in various industries to provide thermal insulation to installations and pipes. In particular, the piping for district heating systems in Europe is primarily insulated using a pre-insulated pipes sandwich assembly composed of a steel heat service pipe, an insulating layer (polyurethane foam) and a polyethylene (PE) casing, which are bonded ...
An assortment of polyurethane foam products for cushioning and insulation. Polyurethane foam is a solid polymeric foam based on polyurethane chemistry. As a specialist synthetic material with highly diverse applications, polyurethane foams are primarily used for thermal insulation and as a cushioning material in mattresses, upholstered furniture or as seating in vehicles.
Most standard memory foam has a density of 16–80 kg/m 3 (1 to 5 lb/ft 3). Most bedding, such as topper pads and comfort layers in mattresses, has a density of 48–72 kg/m 3 (3 to 4.5 lb/ft 3). High densities such as 85 kg/m 3 (5.3 lb/ft 3) are used infrequently. The firmness property (hard to soft) of memory foam is used in determining comfort.
In order to eliminate the volatile hydrodynamics that occur when a solid-density target explodes before it reaches the density required for lasing, scientists are trying to develop an x-ray laser target with a density that is less than the critical density of laser light (4×10 21 electrons/cm 3 for 0.53-μm light).
It was found that on average silver nanofoams can maintain over 90% FECO in a wide potential window (−0.5 to −1.2 VRHE), enabling the maximum CO selective current density of 33 mA cm−2 and the mass activity of 23.5 A gAg−1, which are the highest values among recently reported metal foam-based electrocatalysts. [22]
If the foam weapon is to be an axe, a head carved out of open-cell foam may be affixed. Additional layers of closed-cell foam can be used to define a blade of a sword, the hilt of a dagger, or the soft foam "spikes" of a club. Foam weatherstripping is commonly used to better define a "cutting blade" as opposed to electrical tape.
Various thicknesses of the CMF core and face sheets created a variety of target areal densities from about 6.7 to about 11.7 kg per each tile of 30 x 30 cm. Targets were impacted using 2.54 and 3.175 cm diameter steel balls fired at velocities ranging from 120 to 470 m per second, resulting in puncture energies from 488 to 14 500 J over a 5.06 ...