131 results about "Closed pattern" patented technology

A marine electromagnetic sensor cable includes a plurality of sensor modules disposed at spaced apart locations along a cable. Each module includes at least one pair of electrodes associated with the module. The electrodes are arranged to measure electric field in a direction along the direction of the cable. The cable is arranged to form a closed pattern. Another marine electromagnetic sensor cable includes a plurality of sensor modules disposed at spaced apart locations along a cable. Each module includes at least one pair of electrodes associated therewith. The electrodes are arranged to measure electric field in a direction along the direction of the cable. A plurality of spaced apart magnetic field sensors is associated with each module and arranged to enable determining an electric field amplitude in a direction transverse to the direction of the cable from magnetic field gradient.

The invention discloses a micro-electrolytic electric spark cutting processing device and method for a rotating ultrasonic electrode. The device includes a pulse power supply, a three-dimensional motion mechanism, an ultrasonic-assisted vibration rotating spindle, a measurement and control unit, and an electrolyte tank. The three-dimensional motion mechanism clamps the ultrasonic-assisted vibration rotation The main shaft enables it to move along the X, Y or Z axis. The end of the ultrasonic-assisted vibration rotating main shaft is equipped with a tool electrode. The electrolyte tank is placed at the lower end of the tool electrode, and an auxiliary anode is arranged inside it; the pulse power supply is the auxiliary anode and the tool electrode. Pulse square wave voltage signal is provided, and the invention reduces the electrolysis current and discharge current through the cooperation of ultrasonic vibration-assisted processing and rotating electrodes, and controls the formation of a thinner and more uniform gas film during the processing process, increasing the discharge time and making the discharge easier to occur. The discharge process is more stable, so as to ensure the high surface quality of the processed workpiece edge, and improve the processing stability and precision; at the same time, the use of spiral cylindrical electrodes instead of wire cutting can cut closed graphics.

The present invention relates to a motor structure, which has a shaft tube and a stator set disposed on a base. The shaft tube is in form of a circular tube, the bottom side thereof is in an integrally-formed and closed pattern, and an abrasive gasket, a limit member and a bearing are disposed in the shaft tube, such that a spindle of a rotor can be inserted in the bearing and rotate therein. As the limit member has an annular wall with a specific height, a plurality of limit protrusions extended inward from the inner wall of the through hole can snap a reduced neck of the spindle to limit its axial displacement, thereby attaining the design object of reserving enough space for accommodating an end section of the spindle, reducing necessary parts, assembling process, and saving production cost.

The invention discloses a display panel and the manufacturing method thereof, and a display device. The display panel has a display area and a non-display area surrounding the display area, which comprises relatively arranged array substrates, a color filter substrate, and a liquid crystal layer provided between the array substrates and the color filter substrate. A first via hole penetrates the array substrate and the liquid crystal layer. The display area is arranged around the first via hole. A colloidal frame structure is located between the first via hole and the display area. The vertical projection of the colloidal frame structure on the plane of the array substrates is a closed pattern, and the colloidal frame surrounds the vertical projection of the first via hole on the plane ofthe array substrates. A plurality of grooves are located on the side wall formed by the colloidal frame structure, and the grooves are formed by the side wall of the colloidal frame structure being recessed toward the display area. A plurality of reflective structures are provided in the grooves. The invention can effectively improve the performance of accessories such as cameras in a display terminal.

The present invention discloses a thermal plasma and coal dust mixing structure applied to acetylene preparation process through catalytic cracking in the technical field of chemical equipment and consists of plasma torch, plasma jet mixing zone, gas-solid downer mixer channel, and the coal powder nozzles under the plasma torch and around the plasma jet inside the gas-solid downer mixer channel. The cross section of the mixer channel is a two-dimensional closed pattern and is changed along the axial direction of the plasma jet; the coal powder nozzles are distributed on the cross section of the mixer channel at a same or different height; the cross section of the outlet of coal powder ash nozzle is in a wide and flat shape and its installation angle may be adjusted in the whole spatial range. The present invention may realize good mixing between the coal powder sprayed out of coal powder nozzles and thermal plasma jets and can effectively raise coal ash conversion rate and acetylene yield and alleviate reactor coking.

A method of forming a diffraction grating according to the present invention includes a step of preparing a mold having projections and recesses for forming a diffraction grating, a step of bringing the projections and recesses of the mold into contact with a resin layer in a chamber at a first pressure less than atmospheric pressure, a step of setting a pressure in the chamber to a second pressure more than the first pressure while maintaining the contact, and a step of hardening the resin layer while maintaining the contact between the resin layer and the projections and recesses so as to form a pattern for the diffraction grating on the hardened resin layer. The recesses in the projections and recesses of the mold form a closed pattern in the plane of the mold including the projections and recesses.

The invention discloses a closed pattern filling algorithm via laser marking. A coordinate system is established according to a target closed pattern, and at least one target filling area is determined; the target filling area is segmented into scan lines, and the coordinate of an intersection point between each scan line and the outer contour of the target closed pattern in the target filling area is obtained; the coordinates of the intersection points are recorded; a corresponding array is generated according the recorded coordinates; and according to the coordinates of the intersection points in the array and a marking scanning manner of a laser head, a laser marking path in the target filling area is calculated directly. It is not required to obtain the outer contour of the closed pattern or the calculate the scanning path by obtaining contour points along the circumferential direction of the outer contour, so that the computational complexity is low, and the computing speed is high. The invention also provides a laser marking system and a computer readable storage medium.

The invention discloses a multi-spectrum calibration board for visible light stereoscopy and infrared stereoscopy and a calibration device. A plurality of patterns of one or more types in arbitrary combinations are distributed on the calibration board; the patterns include patterns formed by intersection of N straight lines with vertexes, closed patterns formed by closing of M straight lines and curves and circular patterns or oval patterns, wherein N is greater than equal to 2, and M is greater than or equal to 1; and the calibration board and the patterns are made of tinfoil paper or black paper, and adjacent calibration board parts and patterns are made of different materials. The calibration device comprises the calibration board (1), a movable stretching support (2) and a rotary support (3), wherein the rotary support (3) is installed on the upper portion of the movable stretching support (2), and the calibration board (1) is connected to the rotary support (3). Through the scheme, production is simple, usage is convenient, and the calibration result is precise.

The present invention provides a method of ventilating an operating room using temperature-regulated laminar airflow. The velocity of the downwardly directed laminar clean air flow is determined by the air temperature difference between the supply air temperature and the room air temperature at table level. Measure the room air temperature at the level of the operating table and control the temperature of the clean supply air based on this measurement. In order to keep the velocity of the downwardly directed laminar clean air constant, the temperature difference between the room air temperature at table level and the lower supply air temperature should be kept constant. In a preferred embodiment, this constant temperature difference provides a downwardly directed airflow velocity of at least 0.25 m/s and minimizes fluctuations in ambient air temperature in part by using an air supply unit to supply hot or cold air outside the clean air zone to maintain this constant temperature difference. The present invention also provides a ventilation device that produces a uniform and steady downward laminar airflow, thereby creating a clean air zone around the working area of ​​the operating table. A preferred embodiment comprises: a plurality of air supply units arranged in a closed pattern, such as a circle; and flow blocking and flow guiding units, located between the air supply units, thereby producing a widely dispersed uniform and stable, Downward combined laminar airflow.

A terminal and a method for realizing a bulk operation under a touchscreen, which relate to the field of terminals with touchscreens. The method disclosed in the present invention comprises: after a terminal enables a bulk operation function according to a user operation, monitoring and recognizing a user gesture; when it is recognized that the user gesture indicates a closed pattern, determining the type of the gesture as a selected gesture, converting a closed range indicated by the selected gesture into a touchscreen selection range, and determining all entries displayed in the touchscreen selection range as bulk operation objects; and when it is recognized that the user gesture is a set bulk operation gesture, conducting operation processing corresponding to the bulk operation gesture on the determined bulk operation objects. Also disclosed is a terminal. The technical solution of the present application allows a user to quickly conduct bulk operations such as selection and reproduction, and deletion on any multi-entry (multi-object) interface, thereby making the user experience more natural and more convenient while increasing the manipulation speed of the user.

The invention discloses a noise-reduction tire pattern groove which comprises a tire body, wherein pattern groove parts are arranged on the tire body, and comprise groove walls and groove bottoms. The tire pattern groove is characterized in that convex-concave damping structures are arranged in the pattern groove parts. Compared with the prior art, the special convex-concave damping structures are designed in the pattern groove parts, so that viscous damping or acoustic impedance of air flows can be improved very well, the flow velocities of the air flows of semi-closed pattern groove part tube cavities are reduced, the air energy is reduced, the frequency of the air flows within a certain range of the tube cavities is eliminated, the pumping noise of air is reduced, and the resonance probability of an air column is reduced.

The invention discloses a unilateral mounting bolt connector, a bolt gasket and an installation method thereof. The bolt connector comprises a screw and a bolt head at one end of the screw, wherein a contour line of the cross section of the bolt head is a closed pattern in shape of concavo-convex intervals. The bolt gasket comprises a base with holes and upright posts which are arranged on the base, wherein the upright posts are arranged on the base at intervals along a rotary plane. The bolt connector and the bolt gasket with the structures and the installation method break the structures of the prior bolt connector and the gasket and the prior installation method. When a blind hole is provided with a bolt, the method can finish installation operation on one side, and can conveniently detach a bolt component repeatedly. The method solves the problems that the prior bolt structure can not achieve repeated usage of detachment at the blind side and the method does not break a connected element during detachment. The method prolongs service life of the connected element, and saves cost greatly.

The invention relates to a flexible active-matrix organic light-emitting diode (AMOLED) display device and a flexible display substrate. The flexible display substrate comprises a display region and a non-display region, wherein a plurality of wirings are arranged in the non-display region, each wiring comprises a plurality of circuit units, arbitrary one of the circuit units is connected with all adjacent circuit units, the shape of each circuit unit is a closed pattern, and the closed pattern comprises a plurality of line segments or arcs. The circuit unit is the closed pattern, the closed pattern comprises the plurality of line segments of arcs, and thus, the minimum constitutional unit of each wiring is the line segment or the arc; and the width of the line segment or the arc is relatively narrow, the amplitude of wiring impedance conversion can be integrally reduced when the flexible display substrate is bent, thus, the display quality of the flexible display substrate in a region with relatively large bending degree is improved, and the display uniformity of the AMOLED flexible display device is further improved.

The invention discloses a display device and a manufacturing method, the display device comprises a display panel and a cover plate which are oppositely arranged, the display panel comprises a displayarea and a non-display area, the display panel comprises an array substrate, and the array substrate comprises a substrate, a first metal layer, a second metal layer and a transparent conductive layer; and the array substrate comprises a step area, the step area comprises a touch electrode and a plurality of test bonding pads, the orthographic projections of the at least two test bonding pads andthe closed pattern on the plane where the underlayer substrate is located have an overlapping area, and the position, corresponding to the overlapping area, of the touch electrode is hollowed out. The touch electrodes, the transparent conductive layer, the first metal layer or the second metal layer are arranged on the same layer; and the cover plate comprises a marking area, and the orthographicprojection of the marking area and the orthographic projection of the touch electrodes on the plane where the substrate is located are at least partially overlapped. The touch electrodes are arrangedin the step area to achieve the touch function, a touch screen does not need to be externally hung, and the manufacturing process is simple.