45results about How to "Constant area" patented technology

The invention discloses a touch screen panel which comprises an insulation substrate, a transparent conducting layer, a plurality of sensor electrodes and a plurality of lead wires. The touch screen panel comprises a touch area and a route area. The transparent conducting layer is fixed on one surface of the touch area corresponding to the insulation substrate, the plurality of sensor electrodes are mutually arranged at intervals and are electrically connected with the transparent conducting layer, the plurality of lead wires are laid in the route area and are used for the electrical signal transmission between the sensor electrodes and an external controller, wherein the touch area comprises at least a first touch area, and the quantity distribution density per unit area corresponding to the sensor electrodes of the first touch area is greater than the quantity distribution density per unit area corresponding to the sensor electrodes of other touch areas.

The invention relates to swinging inductors of a stepped-gap construction. We describe an inductor core structure having first and second core segments, constructed and arranged such that distal ends of legs of the first core segment are paired with distal ends of legs of the second core segment in an opposing relation. The at least one distal ends of the first core segment has a ridge projecting therefrom and is paired with the at least one distal ends of the second core segment which has a ridge projecting therefrom in an opposing relation, such that opposingly paired projecting ridges form a cross arrangement.

In an aqueous solution of a zinc salt, counter, reference and working electrodes are placed, and an electric potential is applied across the working and reference electrodes. A gas including oxygen and an inert gas is introduced into the aqueous solution. Responsive to these conditions an array of zinc oxide nanostructures grows on a conductive nucleation plate that is a part of the working electrode. The nanostructures have sharp tips, have a more efficient electron emissivity than nanorods made from other materials, and can be used in fabricating field emission lamps and displays.

This invention provides a submerged entry nozzle for continuous casting which has the optimized nozzle inner shape and is formed in a median strip shape to prevent stagnation region of molten steel from being produced in the nozzle, reduce height difference according to fluctuation of the surface level of molten steel and produce a good quality casting slab having uniform thickness of solidified shell. The submerged entry nozzle for continuous casting comprises: an upper part(31) which is equipped with a refractory material(30) having a convergent inlet(30a), a rest part of which is connected to the inlet to form a slot shaped cross-sectional flow path such that distance(e) between narrow faces of the flow path is long as a whole, distance between wide faces of the flow path is short, and cross sectional area of the flow path is not changed; a conversion part(32) which is connected to the upper part such that thickness of the wall surface of the nozzle is gradually thinned as it goes from the upper part side to the exit side and comprises a slot shaped cross-sectional flow path such that distance between narrow faces of the flow path is gradually increased, distance between wide faces of the flow path is reduced, and cross sectional area of the flow path is not changed; and a lower part(33) which is connected to the conversion part such that thickness of the wall surface of the nozzle is hardly changed as it goes from the conversion part side to the exit side, and in which distance between narrow faces of the flow path is slowly increased, wherein discharge ports(35,36) for guiding flow of molten steel into a mold are installed at an end part of the lower part such that the discharge ports are in the symmetrical state by a separation member(34).

An optical microphone is provided with a propagation medium unit through which an acoustic wave propagates, a light source which emits a light wave that crosses the acoustic wave propagating through the propagation medium unit and is transmitted through the propagation medium unit, a reflection unit which retroreflects the light wave transmitted through the propagation medium unit, and a photoelectric conversion unit which receives the light wave reflected by the reflection unit and transmitted through the propagation medium unit and outputs an electric signal. In an outward route in which the light wave emitted from the light source is transmitted through the propagation medium unit, a zero-order diffracted light wave, a positive first-order diffracted light wave, and a negative first-order diffracted light wave are each generated according to the refractive-index distribution of the propagation medium unit caused by the propagation of the acoustic wave, and in a return route in which the zero-order diffracted light wave generated in the outward route is transmitted through the propagation medium unit by being reflected by the reflection unit, a zero-order diffracted light wave, a positive first-order diffracted light wave, and a negative first-order diffracted light wave are generated according to the refractive-index distribution of the propagation medium unit caused by the propagation of the acoustic wave. The photoelectric conversion unit detects interference light between the positive first-order diffracted light wave generated in the outward route and the negative first-order diffracted light wave generated in the return route and / or interference light between the negative first-order diffracted light wave generated in the outward route and the positive first-order diffracted light wave generated in the return route.

A reverse conducting semiconductor device includes a high-concentration anode layer and a barrier metal layer, the width of the high-concentration anode layer is set larger than the width of contact of the barrier metal layer and the high-concentration anode layer, thereby ensuring that the area of contact between the barrier metal layer and the high-concentration anode layer is constant.

The invention relates to a method for evaluating the corrosion resistance of welded steel and an application thereof, and provides a method for evaluating the corrosion resistance of materials in allregions after welding by utilizing an electrochemical polarization curve so as to solve the problem that the corrosion resistance of weather-proof bridge steel after welding is difficult to measure. The method specifically comprises the steps: respectively sampling a welded base metal, a weld metal and a heat affected zone, measuring open-circuit potentials and polarization curves of all samples in a simulated industrial atmospheric environment, and evaluating the corrosion resistance of the material according to the self-corrosion potentials of the tested samples. The method can be applied todetermination of the corrosion resistance of the weather-resistant bridge steel, has the advantages of simplicity and convenience in operation and quickness and accuracy in analysis, and can be usedfor evaluating the corrosion resistance of all post-welding materials.

Velocity pressure measuring apparatus and methods include a nozzle having a nozzle inlet end and a nozzle outlet end. A side wall of the nozzle extends along a nozzle axis and has an exterior surface and an interior surface. The interior surface defines a nozzle chamber and has a nozzle inlet cross-sectional area at the nozzle inlet end that is greater than a nozzle outlet cross-sectional area at the nozzle outlet end. A first pressure port extends through the side wall from the exterior surface of the nozzle to the interior surface of the nozzle, and includes a velocity pressure pickup channel extending along a channel axis oriented substantially parallel to the nozzle axis.