Abstract:
A method for manufacturing a transmission electron microscope (TEM) micro-grid is provided. A sheet of carbon nanotube structure comprising a plurality of carbon nanotubes is first provided. Some carbon nanotubes are removed from selected portions of the sheet of carbon nanotube structure to form a plurality of electron transmission portions. Each of the electron transmission portions includes a hole defined in the sheet of carbon nanotube structure and a plurality of residual carbon nanotubes in the hole. The sheet of carbon nanotube structure having the electron transmission portions is cut into pieces to form the TEM micro-grid.
Abstract:
The present disclosure provides a digital sound projector including a first flat speaker, a second flat speaker, a connecting device and a signal input device. The connecting device pivotally connects the first flat speaker and the second flat speaker to form an angle between a surface of the first flat speaker and a surface of the second flat speaker. The angle is larger than 0 degrees and smaller than 180 degrees. The signal input device inputs electrical signals to each of the first and the second flat speakers.
Abstract:
A socket connector includes a socket body, a sliding plate movably mounted upon the socket body, a plurality contacts received in the socket body and the sliding plate, and an actuating mechanism. The actuating mechanism includes a lid moving upwardly and downwardly between a first position away from the socket body and a second position close to the socket body, and a lever having one mating bar with at least a first tab and a second tab to be pressed by the lid so as to push the sliding plate moving.
Abstract:
A piezoelectric patch can be used to repair a defective structure having a plate configuration. The piezoelectric patch can be energized with an applied voltage that is configured to sustain the loading arising from the plate. The applied voltages and electrodes of the patch can be configured based on a numerical model and a finite element method (FEM).
Abstract:
A large machining apparatus for working a substantially planar workpiece such as a metal plate in relation to which a set of work actions, such as machining grooves and holes, is required at one of a number of work zones on or in the workpiece, the apparatus including: a working assembly such as a drop down drill movably mounted on a beam for reciprocal linear movement along a first horizontal axis extending parallel to the longitudinal axis of the workpiece; and an assembly rail movably mounted on the beam at right angles to the beam to carry the working assembly. The apparatus further includes: an immobilizing base mounted on the rail for reciprocal linear movement along the assembly rail in the direction of a second axis and a clamping base mounted on the immobilizing base and adapted to be clamped onto the workpiece to locate the working assembly at a predetermined one of said work zones; and a movable base mounted on the assembly rail for limited reciprocal linear displacement along the assembly rail in the direction of the second axis relative to the immobilizing base. The working assembly is mounted on the movable base to enable limited linear displacement of the working assembly in the second axis direction in the predetermined work zone.
Abstract:
A pacemaker is provided. The pacemaker includes a pulse generator and an electrode line connecting with the pulse generator. The electrode line includes a conductor, an insulation layer and a shielding layer. The insulation layer is located on an outer surface of the conductor. The shielding layer is located on an outer surface of the first insulation layer. The shielding layer is a carbon nanotube structure having a plurality of radioactive particles therein.
Abstract:
A defrost window includes a transparent substrate, a carbon nanotube film, a first electrode, a second electrode and a protective layer. The transparent substrate has a top surface. The carbon nanotube film is disposed on the top surface of the transparent substrate. The first electrode and the second electrode electrically connect to the carbon nanotube film and space from each other. The protective layer covers the carbon nanotube film.
Abstract:
A stereomicroscope includes a base and a vessel which is disposed on the base. The vessel includes a transparent body and a light emitting unit. The transparent body has a bottom and a sidewall. The bottom and the sidewall define an opening. The sidewall extends from a side of the bottom. The opening of the transparent body places a specimen. The light emitting unit is fixed in the sidewall of the transparent body for emitting light. The light emitted from the light emitting unit illuminates the specimen, and is substantially parallel to the bottom of the transparent body.
Abstract:
A method for fabricating a carbon nanotube film includes the following steps: providing a vacuum chamber having a carbon nanotube array therein; and pulling a carbon nanotube film out from the carbon nanotube array.
Abstract:
A thermoacoustic device includes at least one first electrode, at least one second electrode, a sound wave generator and two protection components. The sound wave generator is electrically connected to the at least one first electrode and the at least one second electrode. The sound wave generator includes a carbon nanotube structure. The two protection components are located on opposite sides of the sound wave generator.