88results about How to "Full angle" patented technology

The invention discloses an evaluation method for evaluating the branch importance of a power system. The comprehensive importance index of a to-be-evaluated branch is obtained, and then the branch importance of the power system is evaluated. Tl* represents an active power transmission betweenness of the to-be-evaluated branch after being normalized. img file = 'DDA 0001143047330000012. TIF 'wi = '51 'he = '57' represents the impact resistance index of the to-be-evaluated branch after being normalized. Sigma represents the weight coefficient of the active power transmission betweenness. Mu represents the weight coefficient of the impact resistance index. According to the technical scheme of the invention, the complicated network theory and the entropy theory are organically combined, and the branch importance is comprehensively evaluated in the two aspects of the active transmission betweenness and the impact resistance index. A configured branch comprehensive importance index gives consideration to both the branch structure and the state importance. In this way, not only the contribution degree and the carrying capacity of an important branch during the power transfer process can be reflected, but also the influence of the on-off impact of the branch on the system is also considered. Therefore, the method is more accurate and more reasonable. The consideration range is more comprehensive and the evaluation result is more close to the real situation of the power grid.

The invention discloses a transflective display panel, a preparation method thereof and a display device and relates to the field of display. The transflective display panel comprises a reflection area and a transmission area. The reflection area comprises a color film substrate, an array substrate, a liquid crystal layer, a first reflection layer and a diffuse reflection layer, wherein the liquid crystal layer is arranged between the color film substrate and the array substrate, the first reflection layer is arranged on one side of the array substrate, which is close to the liquid crystal layer, the diffuse reflection layer is disposed on one side of the color film substrate, which is close to the liquid crystal layer, and the diffuse reflection layer and the first reflection layer are arranged oppositely. According to the transflective display panel, the preparation method thereof and the display device, display view angles of the transflective display panel and the display device are remarkably increased.

The invention discloses a welding machine applicable to production and processing of aluminium profiles. The welding machine comprises a working platform, a welding mechanism and a fixing mechanism, wherein the welding mechanism and the fixing mechanism are arranged on the working platform; a cutting plate is arranged on the working platform; cleaning through holes are formed in the cutting plate; the welding mechanism comprises a welding machine head, a rotary device and a moving device; the welding machine head is fixed on the rotary device; the rotary device comprises a rotary table and a moving machine base; the moving device comprises a moving rod, an elastic rod and a fixed support rod; the upper end of the fixed support rod is connected with the moving rod; the moving rod is connected with the elastic rod; the elastic rod slides left and right along the moving rod; the elastic rod is fixedly connected with the moving machine base; and the fixing mechanism comprises an upper material clamping device and lower material clamping devices. According to the welding machine disclosed by the invention, the applicability is good; the working stability of the welding machine is improved, and the welding effect of the welding machine is ensured; the whole process is convenient for operation and obvious in effect; and the welding efficiency is improved.

The invention discloses a multifunctional mechanical working table capable of working in multi-angle mode. The working table comprises a machine tool, a mounting plate is arranged on one side of the machine tool, and first electromagnetic sliding rails are arranged on the two sides above the mounting plate; the top of the first electromagnetic sliding rail is provided with two sets of first electromagnetic sliding blocks, and a first installation base is arranged above the first electromagnetic sliding block; an installation groove is formed in the top of the first installation base, and foursets of lifting pneumatic cylinders are arranged in the installation grooves, the top of the lifting pneumatic cylinder is provided with a piston rod, and the top of the piston rod is provided with afixing block; and a second installation base is arranged at the top of the fixed block, and an installation hole is formed in the inner side of the second installation base. The workbench is providedwith a cutting table and a grinding table, a cutting structure and a grinding structure on the mechanical table cooperate, so that the function of the working table is more comprehensive, the polishing operation of the hardware can be realized, the cutting operation of the hardware can be realized, and the functionality is stronger.

The invention relates to a full-dimension image monitor collection control system. The system comprises a vertically arranged fixed rod and a first monitor structure, a second monitor structure and athird monitor structure that are separately arranged at different level heights of the fixed rod and are all connected with the fixed rod. The full-dimension image monitor collection control system comprises an upper layer, a middle layer and a lower layer, wherein the upper layer and the middle layer comprise a visible light first camera and a visible light second camera, and the lower layer comprises an invisible light collection device for invisible light shooting, so that the full-dimension image monitor collection control system is applicable to various occasions including a private space; a stepmotor enables the first camera and the second camera to rotate in XYZ multiple dimensions, so that the first camera and the second camera can shoot and focus based on dimensions, the field video can be further monitored, quality precision of the field video and image is improved effectively, and field multi-dimensional 3D video is realized through cooperation of multiple cameras.

The invention provides an MEMS galvanometer for inhibiting laser speckles in a laser display system and a manufacturing method of the MEMS galvanometer. An SOI (Silicon-On-Insulator) is used as a processing object of the MEMS galvanometer; the MEMS galvanometer is manufactured by micro-processing technologies such as photoetching, etching and coating and mainly comprises a reflective mirror, a resonance suspension girder, driving comb teeth, detecting comb teeth and the like. Tiny waving features which are distributed randomly are designed on the surface of the reflective mirror, and a function of inhibiting the speckles is fulfilled by interfering laser phase while laser reflection is realized. The driving comb teeth, the detecting comb teeth and the resonance beam structure which are matched with the reflective mirror are designed on the reflective mirror, by electrostatic drive of the comb teeth, in-plane vibration of the reflective mirror can be realized, the contrast ratio of the speckles is reduced due to time average by stacking of speckle images in human visual retention time, and the speckle inhibiting effect of the device is improved. The laser speckle inhibiting device in an MEMS galvanometer mode has the characteristics of high reliability, low energy consumption, obvious speckle inhibiting effect, simplicity in processing, easiness in large-scale production and the like.

The application discloses a method and device for obtaining point cloud data. Multiple radars are previously arranged at different locations of a vehicle; the method comprises the following steps: atleast two radars in multiple radars simultaneously scan a target object, and respectively collects one frame of point cloud data, wherein at least two radars are located at different locations of the vehicle; synthesizing the point cloud data collected by at least two radars as one frame of target point cloud data according to a pose relation between the point cloud data collected by at least two radars, wherein the pose relation between the point cloud data collected by at least two radars is determined according to the pose relation among multiple previously determined radars. Through themethod disclosed by the invention, one frame of more comprehensive and rich target point cloud data containing multiple angles and multiple wiring harnesses can be obtained.

The invention discloses a 5G navigator device capable of intelligently adjusting angles. The 5G navigator device comprises a display screen main body and a control system, wherein a light supplementing lamp and a camera are fixedly connected to the upper portion of the front surface of the display screen main body in sequence from left to right, a protective shell is clamped to the outer surface of the display screen body, the protective shell is sleeved with a mounting box, a bottom plate is slidably connected to the position, on the rear side of the protective shell, of the interior of the mounting box, and sleeve pipes are fixedly connected to the right side of the bottom plate. The 5G navigator device relates to the technical field of navigators. The 5G navigator device capable of intelligently adjusting angles can transfer air in two sets of sleeve pipes respectively by utilizing a first inflating device and a second inflating device, such that the elongation and contraction amounts of ejector rods in the two sleeve pipes in the same set are kept synchronous, the two sets of sleeve pipes and the ejector rods are arranged in a crossed and staggered mode and used in cooperationwith a ball head shaft and a rotating sleeve, thus the angle of the display screen can be adjusted conveniently, the rotation is more stable, and the rotating angle and range are more comprehensive.

The invention discloses a PCB automatic collecting and placing machine and a working method thereof. The machine comprises a mounting seat, supporting frames, rolling and conveying discs, a collectingand placing cabinet, a rotary disc, an air blowing frame, a transverse rail rod, a longitudinal rail rod and a grabbing and placing seat, wherein the supporting frames are arranged at the two ends ofthe mounting seat, and the rolling and conveying discs are horizontally arranged above the two supporting frames. The machine has the beneficial effects that a plurality of air blowing cylinders on the air blowing frame synchronously blow hot air to a board body, so that the drying performance of a PCB is guaranteed when the PCB is collected and placed, dust and impurities on the PCB are blown away, so that the tidiness of the PCB when the PCB is collected and placed is guaranteed, then a hydraulic pump II on the collecting and placing cabinet drives a rotary disc to move downwards into a receiving bucket through a hydraulic rod, after a mechanical arm clamps the PCB through clamping jaws, the hydraulic rod drives the rotary disc to rise, a third rolling wheel drives the mechanical arm toextend out of a movable groove, and place the PCB into a loading groove of a loading frame, so that the automatic collecting and placing of the PCB can be completed, the operation of the collecting and placing machine is more time-saving and labor-saving, and the work is more efficient.

The invention discloses a monitoring camera with an adjustable focal length. The monitoring camera comprises an installing plate installing plate. The center of one side of the installing plate is connected with a rotary connecting housing through a connecting column. The rotary connecting housing is of a semispherical structure. A rotary connecting ball is connected inside the rotary connecting housing in a rotary manner. One side of the rotary connecting ball is connected with the center of one side of a supporting case through a connecting column. A lens is driven by a first electric telescoping rod to move. The moving of the lens enables a focus of the lens in a camera device to be adjusted. The monitoring camera can be connected with external equipment through a WIFI connector, and can be operated in a remote manner. The monitoring camera has a simple structure, is easy to operate, enables shot frames to be clearer, enables shot frames to be saved, and is more convenient to adjust in angle. Moreover, shot frames can be transmitted to a mobile device, so that remote monitoring is more convenient.

The invention discloses a polishing machine of a curved surface screen of a mobile phone. The polishing machine of the curved surface screen of the mobile phone comprises a machine frame, an upper polishing assembly arranged on the upper portion of the machine frame and a lower rotating and supporting assembly arranged on the lower portion of the machine frame. The lower rotating and supporting assembly is used for fixing the curved surface screen of the mobile phone and driving the curved surface screen of the mobile phone to conduct compound rotation around multiple axes. The upper polishing assembly is used for installation of polishing disks and driving the polishing disks to move to the position where the polishing disks are in fit with the curved surface screen of the mobile phone. The polishing machine of the curved surface screen of the mobile phone has the effect of improving the polishing flatness.

The invention relates to an information recommendation method and a device, equipment and a storage medium. The method comprises the steps of obtaining historical behavior sequence data of a current user for information and an identifier of each piece of to-be-recommended information; inputting the historical behavior sequence data and each identifier into a preset prediction model, and obtaininga behavior prediction value of the current user for each piece of to-be-recommended information based on a plurality of pieces of sub-sequence data corresponding to the historical behavior sequence data, wherein the prediction model is a multi-target prediction model; and sorting the behavior prediction values of the to-be-recommended information, and recommending the information to the current user according to a sorting result. According to the method, the associated information between different sub-sequence data in the same historical behavior sequence data and the to-be-recommended information is fully combined, so that the prediction angle is more comprehensive, and the accuracy of the prediction result is improved.

The embodiment of the invention discloses an optical rotor and device and method for inhibiting laser speckle based on the optical rotor. The device comprises a linear polarized light generator, an optical rotor, a modulating power supply and an imaging display system; the linear polarized light generator is used for generating linear polarized light; the optical rotor connects the linear polarized light generator with the modulating power supply; the optical rotor can be driven by the magnetism generated by modulating pulse pressure of the modulating power supply to rotate the linear polarized light sent by the linear polarized light generator in the polarizing direction, so as to obtain output linear polarized light which is orthogonal to the inputted linear polarized light; the modulating power supply is connected with the optical rotor and used for providing the modulating pulse pressure to the optical rotor; the imaging display system is used for projecting and displaying the linear polarized light outputted by the optical rotor. According to the technical scheme, the device has the advantages of being simple in structure, flexible and convenient to modulate, and wide in applicable scope; the device can be used in match with other speckle removing technologies so as to achieve a good speckle inhibiting and dispersing effect.

The invention provides a sorgo rod skin and core separating device. The device comprises a feeding groove, a frame plate, a discharging groove, a rotating ring, a fixed ring, a first clamping plate, atension spring, a second clamping plate, a placing groove, screws, a screw motor, a pushing plate, a support, an electric telescopic rod, a first sliding block, a second sliding block, a connecting shaft, a positioning shaft, a limiting groove, a clamping face, a first ejecting block, cutting knives and a second ejecting block. The frame plate is located between the feeding groove and the discharging groove, the placing groove is integrally arranged over the feeding groove, the screws are fixedly connected to the left side and the right side above the feeding groove, the cutting knives and the clamping face are in inwards-concave arc shapes, at the normal state, the cutting knives are longer than the clamping face by 0.3 cm, when the second sliding block makes complete contact with the second ejecting block, a ring is formed between the cutting knives, when the ring-shaped cutting knives carry out peeling on the sorgo rod, the angle is more complete, and the peeling quality is higher.

An embodiment of the invention provides a method of quantifying a defense result and a system thereof. The method comprises the following steps of acquiring a suspected data flow set, wherein the suspected data flow set is located at a defense terminal of a cloud platform and is formed by data flows corresponding to each suspected IP address in a suspected IP address set contained by an original data flow; acquiring a normal data flow, wherein the normal data flow is the residual data flow after the defense terminal cleans the suspected data flow set according to a preset defense strategy; acquiring a host performance parameter, wherein the host performance parameter is a parameter set extracted and acquired from a target terminal after the defense terminal sends the normal data flow to the target terminal; and based on a target parameter set, quantifying the defense result, wherein the target parameter set at least includes the suspected data flow set, the normal data flow and the host performance parameter. Evaluation angles and indexes used for calculating the defense result are comprehensive so that the defense result is accurate.

The invention discloses an automatic grinding device for a permanent magnet ferrite square block and a grinding method of the automatic grinding device. The automatic grinding device comprises a loading frame, a carrying and support table, a first mounting table, a second mounting table and a vertical loading cylinder. The carrying and support table is horizontally arranged in the middle of the loading frame. A bottom support plate is arranged at the bottom of the carrying and support table. A top mounting plate is arranged on the top of the carrying and support table. Two side support rods are vertically arranged at the two ends between the top mounting plate and the bottom support plate. The first mounting table is arranged above one end of the carrying and support table. The automatic grinding device has the beneficial effects that a fourth hydraulic pump drives a grinding column to vertically adjust the height through a fourth hydraulic shaft, in cooperation with a sixth motor, a rotating disc drives a grinding and loading seat to rotate to adjust the position, it is guaranteed that the grinding position of the permanent magnetic ferrite square block by the device is more precise and suitable, the precision of grinding the permanent magnetic ferrite square block by the device is greatly improved, and it is guaranteed that the area of the device for grinding and covering thepermanent magnet ferrite square block is more comprehensive. The device has the beneficial effects of high automation degree and very time-saving and labor-saving use.

The invention discloses a medical upper limb fixation device for hemodialysis. The medical upper limb fixation device for hemodialysis comprises an upper arm fixation unit, a lower arm fixation unit,an arm angle adjusting unit, a palm fixation unit and a dialysis tube heating unit. The upper arm fixation unit and the lower arm fixation unit are connected through the arm angle adjusting unit. Thepalm fixation unit is arranged on the free end of the lower arm fixation unit. The dialysis tube heating unit is arranged on the lower arm fixation unit. By arranging the upper arm fixation unit and the lower arm fixation unit, the upper limb of a patient can be fixed at a controllable angle. The palm of the patient also can be fixed through the palm fixation unit, thereby avoiding situation thatthe upper limb of the patient moves to cause shedding of a dialysis tube and displacement of a needle head when the patient is subjected to hemodialysis. The arrangement of the dialysis tube heating unit can allow dialysate in the dialysis tube to be heated when the patient is subjected to hemodialysis.

The invention relates to a children's ultrasonic scaling apparatus. A nylon dental wire of certain hardness is set according to the characteristics of children scaling and is driven by ultrasound to scale children's teeth; a straight dental wire and a bent dental wire provided herein allow scaling to be performed according to different conditions; if a scaling head can enter conveniently, the straight dental wire is used directly to perform cleaning, and force transfer of the straight dental wire is good; when the scaling head cannot enter conveniently, the bent dental wire is used to performcleaning; the scaling head is provided with a scaling needle pluggable, so that cleaning can be performed on dental scale difficult to clean. A camera structure of special structure is provided; the angle of a camera is diverse according to the characteristic that children's mouth is small, so that the children's ultrasonic scaling apparatus is convenient to use.

The present invention designs a spraying device, especially relates to a spray head. The spray head comprises a tubular water spray pipe, a plurality of water spray holes which spray water and drive the water spray pipe to rotate around a center shaft in one direction are formed in the side wall of the water spray pipe, the water spray holes comprise water spray holes a and water spray holes b, the water outlet direction of the water spray holes a deviates to one end of the water spray pipe, and the water outlet direction of the water spray holes b deviates to the other end of the water spraypipe; the water spraying directions of the water spraying holes a and the water spraying holes b are diversified, and ornamental value is achieved. The invention further discloses a spray washing device and a dish washing machine. The nozzle is used for the dish washing machine, the front faces and the back faces of dishes can be flushed at the same time, more positions on the dishes can be directly flushed, and the flushing speed is increased.

The invention discloses a grinding device capable of improving the smoothness of an impeller channel. The grinding device comprises a sand box, emery, an impeller, a sleeve shaft, a bearing box and avariable-frequency speed regulation motor. The sand box is of a hollow structure, and a main shaft of a cylindrical structure penetrates through one end of the variable-frequency speed regulation motor. The grinding device has the beneficial effects that the emery is continuously thrown out by impeller blades through the impeller channel, and the direction of the throwing-out direction is consistent with the direction of a molded line of the impeller channel. The emery is fine in particle and high in hardness, so that the impeller channel is ground smoothly through scoring of the impeller channel. By means of the grinding device, casting burrs and the sand inclusion in the impeller channel can be easily and quickly removed, and the smoothness in the impeller channel can be greatly improved. The inner wall of the impeller channel is scoured by a large quantity of emery fine particles, so that the efficiency of grinding the impeller channel and removing the burrs is higher, meanwhile, the position and angle coverage of the device on the impeller channel grinding work is more comprehensive, and the burrs are removed more thoroughly.

The invention relates to the technical field of portrait acquisition, in particular to a camera portrait acquisition system applied to future community access control, which comprises a center console, a portrait acquisition module, a detection module and an electric lifting platform, portrait acquisition software is installed in the center console, a portrait drawing unit is arranged in the portrait acquisition software, and the portrait drawing unit is connected with the detection module. The portrait acquisition module comprises a portrait acquisition unit, a light supplementing unit and a prompting unit, and the detection module comprises a height detection unit, an illumination intensity detection unit and a distance sensor. According to the invention, the problems of single angle of acquired portraits and large use limitation caused by the fact that an access control device using a face recognition system as a core technology is used in a community in the future and a portrait acquisition system in the existing access control device can only acquire the fronts of users can be effectively solved.

The invention discloses an information fusion and analysis method based on a honeycomb video-temperature acquisition system. The information fusion and analysis method includes the steps of 1, intercepting video signals acquired by the honeycomb video-temperature acquisition system to obtain a swarm image sequence; 2, obtaining a honeycomb temperature matrix sequence with time and positions corresponding to swarm images; 3, segmenting single-frame swarm images by a cluster segmentation algorithm to obtain an initial position distribution diagram with swarm morphology; 4, subjecting the initial position distribution diagram to block processing and neighborhood territory pixel value assignment to obtain image matrixes in one-to-one correspondence to all temperature values in temperature matrixes in position; 5, computing related coefficients and mutual information between every frame of image matrix and the corresponding temperature matrix so as to establish related coefficient and mutual information sequence curves. By subjecting image and temperature information to fusion processing and analysis, the information fusion and analysis method based on the honeycomb video-temperature acquisition system is beneficial to improvement on analysis effect during honeycomb temperature regulation, thereby being applicable to bee science studies and beekeeping management.

The invention relates to a rotatable billboard, comprising a rectangular frame support and a rectangular billboard, the rectangular billboard is arranged inside the rectangular frame mount, and the rectangular billboard can rotate in a vertical plane relative to the rectangular frame mount and rotate in a horizontal plane relative to the rectangular frame support, the side of the rectangular frame support is provided with a transparent storage bag, and the bottom surface of the rotating billboard is provided with a foldable pulley. The rotatable billboard of the present invention can be rotated in up and down and left and right directions, and the transparent storage pockets on the left and right sides can place advertisement pictures, the angle and orientation of advertisement display are more comprehensive, and the foldable pulley can be used to facilitate the movement of the billboard.

The invention relates to the field of medical equipment, and discloses a magnetic ring array device for treatment. The magnetic ring array device for treatment comprises at least two closed magnetic rings or magnetic chains; the magnetic rings or magnetic chains are arranged in a sector, a circle or a spherical arc shape and then fixed on a fixed support to form a magnetic ring array; at least one metal coil is wound on each magnetic ring or magnetic chain; a closed loop is formed between each of the two ends of each metal coil and one alternating signal generating circuit; and in the magnetic ring array, preset alternating electric fields generated in the magnetic rings or the magnetic chains are superposed and converged to a focal point. When the magnetic ring array device for treatment is in use, a carrier of tumor cells which are rapidly split is directly placed on the converged focal point of the preset alternating electric field generated in each magnetic ring or magnetic chain in the magnetic ring array, so that a superposed alternating electric field can be generated in the tumor cells which are rapidly split, which is similar to energy concentration, thereby more effectively treating a disease part, and facilitating treating disease parts from different angles. The magnetic ring array device for treatment does not need to be tightly attached to the skin, and can be worn or used for a long time.

The invention discloses an urban-rural planning mobile deepening application system, and relates to the technical field of software application. The urban-rural planning mobile deepening application system is characterized by comprising a user input receiving module, a data processing control module and an information display module, wherein the modules are connected according to an effective logical relation. The advantages are that project progress data is queried, calculated, tracked and checked on mobile terminal equipment, a geographic information technology and a database technology arecombined, and storage, reading, searching, statistics and geo-location display are conveniently performed on the current engineering project progress conditions. Joint query is performed on planning full cycle data, multiple tables are applied to perform joint query, spatial indexes are combined, and the query efficiency is higher, thereby being smoother in interface jump; and the tight combination of data and map display and the omnidirectional multi-angle display for the planning full cycle data enable the result to be displayed more vividly.

The embodiment of the invention discloses a high-power fiber laser ice melting system, which is applied to ice melting on an overhead line, and is characterized by comprising a laser emitting module,a monitoring module, a distance measurement module, an optical zooming module, a tracking and aiming module and a turntable, wherein the laser emitting module is used for melting the ice coating the overhead line; the monitoring module is used for obtaining monitoring data related to the overhead line at a far end in real time; the distance measurement module is used for generating a distance parameter according to the monitoring data; the optical zooming module is used for adjusting the focal length of the laser emitted by the laser emitting module; the tracking and aiming module is used foradjusting the direction of the laser emitted by the laser emitting module in real time; and the turntable is used for changing the irradiation direction and position of the laser. Through the ice melting system provided by the invention, the ice melting efficiency can be greatly improved, the ice melting cost is reduced, and meanwhile, the working risk of an electric worker is greatly reduced.

The invention discloses a spraying device with recyclable feed liquid, and relates to the technical field of spraying devices. The spraying device comprises a supporting frame, wherein a first slidingblock is movably installed in the supporting frame; a fixing plate is arranged at the top of the supporting frame; a threaded pipe is arranged in the first sliding block; one end of the threaded pipeextends to the outside of the first sliding block; the top of the threaded pipe is in threaded connection with a threaded rod; and the top of the threaded rod is fixedly connected with a hollow layer. According to the spraying device with the recyclable feed liquid, a rotary spray head is arranged, the rotary spray head extracts pigment needing to be sprayed into a storage box through a discharging pipe, a hydraulic cylinder moves to drive a second sliding block to move left and right on a first sliding groove for spraying, a sliding groove plate hydraulic cylinder moves a sliding groove plate up and down, the rotary spray head can be driven to move up and down for spraying, and the spraying angle is more comprehensive.

The invention provides a hook for taking out stitches. The hook comprises a long handle and a hook body arranged at one end of the long handle. A blade is arranged in the hook body. One end of the hook body away from the long handle extends beyond the cutting surface of the blade. When the hook for taking out the stitches is applied to take out the stitches, the long handle is held, the hook bodystretches into the suture to cut off the suture, and then the suture is taken out with tweezers. According to the hook for taking out the stitches, the blade is arranged inside the hook body, one endof the hook body away from the long handle extends beyond the cutting surface of the blade, and when the hook body stretches into the suture, the skin around the wound is not cut due to exposure of the blade, and the glove or the finger is not cut carelessly by the doctor to cause prick infection. The hook for taking out the stitches is easy to use and can reduce the pain of the patient in case oftaking out the stitches and can be arranged in a disposable box for the hook for taking out the stitches so as to be convenient to store and transport without cutting the outer packaging bag of the box for the hook for taking out the stitches, and the hook is low in construction cost and easy to market and popularize.