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41results about How to "Efficiency sometimes varies" patented technology

3D fabric and preparing thereof

ActiveUS20090288731A1Maintain shape stabilityMaintain inherent flexibilitySmallware loomsOrnamental textile articlesSurface layerRepeat pattern
A three-dimensional multilayer fabric is provided. The fabric comprises a surface layer, a backing layer, and an intermediate layer connecting the surface layer and the backing layer. The surface layer includes sequential unstitched surface portions and sequential stitched surface portions formed in an alternating and repeating pattern. The unstitched surface portions of the surface layer are essentially composed of surface warp threads only, and the stitched surface portions of the surface layer are composed of the surface warp threads and intermediate warp threads. The backing layer includes sequential unstitched backing portions and sequential stitched backing portions formed in an alternating and repeating pattern. The unstitched backing portions of the backing layer are essentially composed of backing warp threads only, and the stitched backing portions of the backing layer are composed of the backing warp threads and the intermediate warp threads. The intermediate warp threads are woven without interlacing with weft threads on the surfaces of the unstitched backing portions. The intermediate layer includes sequential intermediate portions composed of the intermediate warp threads only. Each of the intermediate portions consists of a first intermediate portion and a second intermediate portion connected to the stitched surface portions and the stitched backing portions in an alternating and repeating pattern. The connecting warp threads of the intermediate layer exposed to the outside of the backing layer are sheared. Further provided is a method for the production of the fabric.
Owner:YOUIL

Variable inertia flywheel apparatus

InactiveUS20050050984A1Efficiently vary it rotational momentum inertiaEfficiency sometimes variesControlling membersRotating vibration suppressionFlywheelInertia
In a flywheel having variable inertia, first and second guide grooves are respectively formed at a body and a rotatable member such that an overlapping position thereof is varied according to a relative rotation thereof. A movable mass is disposed at the overlapping position, and the rotatable member rotates relatively to the body by hydraulic pressure.
Owner:HYUNDAI MOTOR CO LTD

3D fabric and preparing thereof

A three-dimensional multilayer fabric is provided. The fabric comprises a surface layer, a backing layer, and an intermediate layer connecting the surface layer and the backing layer. The surface layer includes sequential unstitched surface portions and sequential stitched surface portions formed in an alternating and repeating pattern. The unstitched surface portions of the surface layer are essentially composed of surface warp threads only, and the stitched surface portions of the surface layer are composed of the surface warp threads and intermediate warp threads. The backing layer includes sequential unstitched backing portions and sequential stitched backing portions formed in an alternating and repeating pattern. The unstitched backing portions of the backing layer are essentially composed of backing warp threads only, and the stitched backing portions of the backing layer are composed of the backing warp threads and the intermediate warp threads. The intermediate warp threads are woven without interlacing with weft threads on the surfaces of the unstitched backing portions. The intermediate layer includes sequential intermediate portions composed of the intermediate warp threads only. Each of the intermediate portions consists of a first intermediate portion and a second intermediate portion connected to the stitched surface portions and the stitched backing portions in an alternating and repeating pattern. The connecting warp threads of the intermediate layer exposed to the outside of the backing layer are sheared. Further provided is a method for the production of the fabric.
Owner:YOUIL

Reducing chromatic aberration in images formed by emmission electrons

An imaging device, such as an EEM, includes an electric / magnetic lens used to focus pulsed electrons emitted from an object on to a target plane. Before a pulse of emitted electrons reaches the lens, electrons are spatially separated in dependence on their respective kinetic energies and are then subject to a time varying electric field that keeps the final focal plane constant for a wide variety of different energy electrons. The electric field compensates for variations in the image focal length caused by a spread in kinetic energies, causing the electrons to be focused proximate the target plane, reducing chromatic aberration. The varying electric field may be provided by varying an electric potential at the lens by, for example, varying a voltage supplied to an electrode at the lens. This potential effectively varies the focal strength of the lens in time, in order to compensate for variations in kinetic energies of electrons arriving at the lens, effectively keeping the image plane position constant.
Owner:NAT UNIV OF SINGAPORE
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