43results 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.

The invention relates to an unmanned aerial vehicle carrying a lighting lamp. The unmanned aerial vehicle comprises an unmanned aerial vehicle body, the lighting lamp and a connection mechanism. The unmanned aerial vehicle body comprises a body, wings and feet, wherein the wings and the feet are arranged on the body. The end face of one side, facing the feet, of the body is provided with a fixing seat. One side, far away from the body, of the fixing seat is provided with a groove. The connection mechanism comprises a first connection rod and a second connection rod. One end of the first connection rod is inserted into the groove of the fixing seat. The other end of the first connection rod is connected with the second connection rod in a hinged manner. One side, far away from the first connection rod, of the second connection rod is fixedly connected with the lighting lamp. According to the unmanned aerial vehicle carrying the lighting lamp, the lighting lamp can be driven by the unmanned aerial vehicle body to be used movably overhead and keeps in the vertically downward state under the action of the gravity of the lighting lamp, so that it is guaranteed that the area of the lighting region of the lighting lamp keeps unchanged in work, and the use requirements of people are met.

The invention relates to an array substrate for a display device and to a method for manufacturing an array substrate comprising a thin-film transistor (“TFT”). An array substrate according to an embodiment of the invention comprises a source electrode, a gate electrode and a drain electrode, wherein the gate electrode is located on a first metal layer, the source electrode and the drain electrode are located on a second metal layer, and in the case that dislocation occurs between the first metal layer and the second metal layer, the area of the overlapping region between the source electrode and the gate electrode keeps constant.

The invention discloses a grid wing wind tunnel test model scaling method. According to the method, every two adjacent unit grids are combined, the grid wing chord length is increased, the wall thickness of each grid and the thickness of a frame are increased, and therefore it is guaranteed that the attach angle lift force area is zero and the windward resistance area is kept unchanged after a model is scaled, and the increase multiples of the chord length and the increase multiples of the wall thickness of each grid are proportional to the combination number of the unit grids. By means of the grid wing wind tunnel test model scaling method, processing difficulty is greatly lowered, a processing period is shortened, and in a wind tunnel test process, under the action of supersonic velocity air flow, the grid wing model is not broken off or damaged. Through verification of a wind tunnel test, pneumatic characteristics of an original design scheme is restored really, and the grid wing wind tunnel test model scaling method is suitable for wind tunnel test model design that the size is too small after grid wings are scaled.

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.

The invention relates to a variable Mach number rotating mechanism based on semicircular bearings. The mechanism comprises a left side wall 1, an upper molding surface mechanism 2, a lower molding surface mechanism 3, an upper support plate 4, a lower support plate 5, an upper right semicircular bearing 6, an upper left semicircular bearing 7, a lower right semicircular bearing 8, a lower left semicircular bearing 9 and a right side wall 10. For a free jet spraying pipe with an open type outlet, the semicircular shaft lug design of the rotating mechanism effectively guarantees a rigid molding surface rotating center shaft as a spraying pipe molding surface outlet edge line so as to effectively guarantee the reference uniformity of the sectional area of the outlet of the spraying pipe and the throat way control height in the Mach number adjusting process; and a fixed molding surface driving end adopts an arc guide rail mode to effectively compensate the defect of incapability of locking the semicircular bearings, so that the adjustment of a driving mechanism is effective and fast.

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).

The invention discloses a soil and structure contact surface testing machine. The soil and structure contact surface testing machine comprises a body frame, a structure panel, an X-direction motion system, a Y-direction motion system, a Z-direction motion system, a hydraulic loading and control system, a data acquisition system, a confining pressure chamber system, a temperature control system andthe like. The soil and structure contact surface testing machine is specially designed for researching the problem of the soil and structure contact surfaces, and can complete the research on the problem of the contact surfaces between various soil types, such as clay, fine-grained soil and coarse-grained soil and all kinds of structural panels under various saturation or non-saturation temperature field conditions. The normal stress is directly applied to the contact surfaces during the test. The concept is clear and the stress state is clear, the uniform strain of the soil can be ensured, the strain localization phenomenon is eliminated, the constant areas of the contact surfaces are ensured, and it is ensured that the results are true and reliable.

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 spacing between an abrasive type surface polishing tool and the surface of the work piece that is being polished is controlled dynamically so that variations in the area of the abrasive pad in contact with the surface of the work piece compensated, thereby eliminating size variations in this contact area and the accompanying variations in material removal that produce surface height fluctuations.

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.

The invention discloses an intelligent walking stick based on grid laser omnidirectional vision. The intelligent walking stick structurally comprises a base, a supporting rod, a handle, a help seeking button, a voice broadcast opening, a noctilucent ring, a glove and a temperature control button, due to the fact that the distance between a refractor and the ground is changed, the area of an obtained light source is changed, and by changing the installation mode of a mirror plate of the spherical refractor, the mirror plate is limited through the limiting mechanism, the angle of the mirror plate can be changed according to different users, the area of a light source can be obtained after the distance between the refractor and the ground is changed, the front light source can be obtained and refracted into the camera in time, and the walking stick can normally provide front road surface information for the users; when a user passes through a wet muddy ground, the friction force between the base and the muddy ground is small, the borne supporting force is reduced, and the slipping phenomenon is likely to occur, the inserting rods in the sleeve plates are inserted into the ground, the slipping phenomenon occurring when the base passes through the wet muddy ground is reduced, and safe use of personnel is facilitated.

The invention provides a method of preparing precipitation method white carbon black by an improved dropwise adding process. The method comprises the following steps: preparing a base solution in a reaction kettle and controlling the content of water glass; controlling the stirring speed and the reaction temperature according to different generated products, spraying sulfuric acid from the bottomof the reaction kettle and spraying a water glass solution from the bottom or top of the reaction kettle till the water glass solution is sprayed over; raising the temperature, spraying sulfuric acidfrom the bottom of the reaction kettle, controlling the pH of the reaction system, and carrying out acidification and curing till the reaction is completed; and carrying out filter pressing, washing,pulpifying and drying on the obtained synthesized liquid to obtain the precipitation method white carbon black. Compared with an existing precipitation method, as white carbon black of different specifications is prepared by spraying sulfuric acid from the bottom and adding the water glass solution from the bottom or top, the specific surface areas and oil factors of different white carbon block products can be improved. In the production process, acidic emission is converted into neutral emission in tail gas emission, so that the product quality can be improved effectively, novel products aredeveloped, and the method is fully environment-friendly.

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.