93results about How to "Reduce nudity" patented technology

The invention relates to a Pt-based octahedral nanocrystal cathode catalyst used for a vehicle-mounted fuel cell and a preparation method for the cathode catalyst. According to the process, a one-step organosol method is adopted; and by adding the proper structural control agent CTAB or benzoic acid and the like, the octahedral-shaped PtM/C nanocrystal catalyst (PtM/C NCs) is prepared. Compared with the prior art, the catalyst provided by the invention takes the PtM(111) crystal surface with relatively high activity as a granular surface; compared with a commercial Pt/C catalyst, the catalytic activity of the cathode catalyst provided by the invention on oxygen is highly improved, and the cathode catalyst has certain advantages on cost and actual applications; and meanwhile, the cathode catalyst has simple preparation method, uniform catalyst structure, relatively high dispersity, excellent electrochemical performance and the like.

The invention relates to a preparation method of an environment-friendly and ageing-resistant calcium silicate ceramic fiber building insulation board and belongs to the technical field of ceramic fiber materials. Calcium silicate ceramic fibers are taken as base materials, an organic binding agent or an inorganic binding agent, a filler and an additive in appropriate proportion are added, and distributing, pulping, moulding, drying and follow-up machining are carried out, and thus the environment-friendly and ageing-resistant calcium silicate ceramic fiber building insulation board is obtained. The environment-friendly and ageing-resistant calcium silicate ceramic fiber building insulation board is characterized by comprising the following components in parts by weight: 50-80 parts of calcium silicate ceramic fibers, 0-20 parts of rock wool leftover material, 0-20 parts of expanded perlite, 5-20 parts of sepiolite fiber velvet, 5-20 parts of clay, 2-8 parts of resin powder, 1-5 parts of moistureproof agent, 0.2-2 parts of organic silicon moisture repellent and 0.01-0.5 part of additive. With adoption of the preparation method provided by the invention, safety and environmental protection problems of inorganic fiber building insulation boards are solved; the whole ageing resistance of the ceramic fiber building insulation board is improved; and waterproof and moistureproof properties of the ceramic fiber building insulation board are effectively improved.

The invention discloses a preparation method of wool fiber core spun yarn. Filaments are mainly taken as core yarn, wool fiber coating is performed on the surface of the core yarn twice, the twisting direction of wool fibers during the first coating is opposite to the twisting direction of the wool fibers during the second coating, the content of filament core yarn in the wool fiber core spun yarn produced through the method is 20%-35%, and the content of wool fibers is 65%-80%. According to the preparation method of the wool fiber core spun yarn, the filament is coated by the wool fibers twice and twisting directions of coating are opposite, so that sliding of the wool fibers on the surface of the filament core yarn is reduced or avoided, exposed filament core yarn on the surface of fabric is reduced, and the coating effect is good.

The invention relates to an auxiliary device for monitoring and measuring convergence points in the tunnel construction by a cross diaphragm (CRD) method and a method for burying the auxiliary device. The auxiliary device comprises an embedded fixed rod, a nut washer, a fixing nut, a measuring point connecting rod and a measuring point hook, wherein an expansion bolt head is formed at one end of the embedded fixed rod and is provided with an expansion piece, and the nut washer and the fixing nut are arranged at the other end of the embedded fixed rod; and the measuring point hook is arranged at one end of the measuring point connecting rod and is used for connecting a steel ruler convergence meter for measurement, and a threaded caliper retaining groove is formed at the other end of the measuring point connecting rod. When buried, the embedded fixed rod can be fixed in a tunnel side wall by putting the expansion bolt head formed at one end of the embedded fixed rod into a drilled hole and knocking the other end of the embedded fixed rod to ensure that the expansion piece expands to extrude surrounding rock; and the embedded fixed rod can be closely connected with the threaded caliper retaining groove because a thread is formed at the other end of the embedded fixed rod, and the measuring point hook on the measuring point connecting rod is used for connecting a convergence hook on the steel ruler convergence meter during measurement. The invention has the advantages that: the cost of manufacturing materials is low, the arrangement method is simple, measuring points can be effectively prevented from being damaged and the like.

A method for cleaning air by adsorbing the toxic gas, dust and pathogenic bacteria includes choosing an air region to be treated, determining the tpe and quantity of toxic elements in the air region, and choosing and planting the correspondent flower and tree for purifying in the air region.

The invention discloses an inductive uterine slow release system. The incidence of uterine adhesion after an induced abortion operation is high, the re-adhesion is serious after a uterine adhesion operation, and no good solution is available at present. The system comprises a uterus-shaped elastic balloon stent, a slow release drug film, a catheter and a one-way inflation valve, wherein the uterus-shaped elastic balloon stent is a hollow isosceles triangle structural body; waists of the isosceles triangle are 3.5cm; the bottom edge of the isosceles triangle is 3cm; one end of the catheter is connected and communicated with the vertex angle end of the uterus-shaped elastic balloon stent; the other end of the catheter is connected with the one-way inflation valve; a plurality of annular scales are arranged on the outer side face of one end, close to the uterus-shaped elastic balloon stent, of the catheter; and the one-way inflation valve comprises an inflation valve and a pressure sensor. The uterus-shaped elastic balloon stent is coated with the slow release drug film, and the slow release drug film is made of fibrin glue and contains a slow release drug. The system is simple in structure and easy to operate, does not injure a uterine cavity easily, and can effectively avoid the uterine adhesion.

The invention discloses a method for producing covering yarn. The method mainly takes spandex filaments as core yarns, two times of blend fiber covering are carried out on the surfaces of the core yarns, and the twisting direction of the blend fibers of the first covering is opposite to the twisting direction of the blend fibers of the second covering. The method for producing the covering yarn utilizes the blend fibers to cover the spandex filaments for two times, and the twisting directions of the two times of covering are opposite to each other, so that the phenomenon that the blend fibers slide on the surfaces of the spandex filament core yarns is reduced or eliminated, the phenomenon that the spandex filaments are exposed on the surface of a textile is reduced, and a good covering effect is obtained.

The invention relates to the technical field of municipal road construction, in particular to a road paving device for municipal road construction. The device comprises L-shaped base plates laid on the two sides of a municipal road. A movable beam is mounted between the tops of the two L-shaped base plates in a sliding manner; positioning blocks are arranged on the left and right sides of the topof the movable beam; a case is fixed at the bottom of the movable beam; a rake plate is arranged at the bottom of the front end of the case; a rotating plate for preliminarily trowelling concrete is mounted in the middle of the bottom of the case; a supporting column is connected between the movable plate and the rotating plate; the outer wall of the supporting column is connected with a driving mechanism; the movable beam is pushed forwards through the connecting rod; rake teeth at the bottom of the rake plate firstly rake concrete flat so that excessive concrete moves forward and the pavement surface is level; a driven gear rotates to drive the supporting column to rotate, the rotating plate rotates on the concrete pavement, the pavement is leveled, gravel in the concrete is prevented from being exposed out of the pavement, and the concrete pavement is continuously leveled and flattened through movement of the movable beam and movement of the plastering piece from back to front, so that the effect of flattening the concrete pavement is good.

The invention relates to a tin plating electrolyte which contains a solvent and the materials with following concentration: 10-20g/L of tin methane sulfonate, 30-60g/L of methanesulfonic acid, 0.4-5g/L of compound additive, and a proper amount of PH regulator; and the compound additive is formed by thiourea, hydroquinone, 2-mercapto benzimidazole and propylene glycol block polyether. For the tin plating electrolyte, by reasonably selecting types and use amount of additives, the problems of instable plating solution and high cost in the methanesulfonic acid system are solved, and by using the tin plating electrolyte, a high-mass plating layer is acquired beneficially.

The invention discloses a permeable spur dike structure, and belongs to the field of river channel treatment. The permeable spur dike structure comprises a plurality of structure units connected sideby side; each structure unit comprises a concrete base and a plurality of concrete piles; the plurality of concrete piles are uniformly distributed on the same straight line on the concrete base at intervals; the sectional area of the concrete pile is gradually reduced from bottom to top; the bottom of the concrete pile is fixedly connected with the concrete base; the upstream face of the concretepile is an arc-shaped face; a plurality of water permeable holes are formed in the concrete pile; and the distribution density of the water permeable holes is gradually increased from bottom to top.According to the invention, river floaters are effectively prevented from adhering and accumulating on the pile body; the higher the elevation of the spur dike is, the higher the water permeability is, so that the spur dike can automatically adjust the water blocking and flood discharging capacities when the river flow changes; a slow flow area formed by the concrete piles and the concrete base can be used for water grass growth and can also be used for providing places needed for fish to inhabit, bait, breed and develop; and therefore the ecological environment of a river can be effectively improved through the ecological characteristics of the structure.

The invention relates to an intelligent carpet based on a sensing technique. The intelligent carpet comprises a carpet body (1) and a pressure sensor (2) arranged in an interlayer of the carpet body (1). The intelligent carpet also comprises a control box (3) arranged outside the carpet body (1). The control box (3) is connected with a relay (4). The relay (4) is in parallel connection with a switch of corresponding electric equipment in a room. The intelligent carpet is arranged at an entrance of the room. Compared with the prior art, the intelligent carpet has the advantages that an original electrical control line in the room needs not to be changed, only the relay needs to be connected with the original switch in parallel, foot treading motions are sensed by the pressure sensor, the control box controls motions of the relay, the corresponding electric equipment in the room is turned on or turned off, and the cost is low; the control box is arranged outside the carpet body, and is convenient to maintain; and the carpet is arranged at the entrance of the room and can control the electric equipment when people enter the room, so illumination convenience is greatly improved.

The invention discloses a medical bandage discharging machine for hospital nursing. The machine comprises a cover box, a PLC is arranged at the outer side of the right side surface of the cover box, acover plate is hinged to the edge of the left side of an opening of the front side surface of the cover box, and a sterilizing lamp and a storage battery are arranged on the inner side surface of thecover box. The medical bandage discharging machine for hospital nursing is simple in structure, convenient to disassemble and beneficial to bandage installation and regular sterilization of the innerside of the cover box, a bandage is isolated and stored through the cover box, the sterilizing lamp is used for sterilization, cross infection of the bandage is prevented, and the machine is conveniently used anytime; the bandage is pulled by a pulling sleeve, the bandage winds a rotation shaft and rotates along with the rotation shaft, in cooperation with clamping and discharging of a drive wheel and a driven wheel, the stability is high, and discharging is conducted quickly; by pressing a sliding sheet, a cutter cuts off the bandage, the operation is simple, exposure of the end of the bandage is reduced at the same time of not discharging, the machine is convenient to use, and the efficiency of winding the bandage by medical workers is improved.

The invention relates to a switching power supply device and a variable propeller system control cabinet which are mainly applied to a variable propeller system for wind power generation. The switching power supply device comprises a housing, an AC input port, an emergency power supply input port, a low-voltage DC output port and a high-voltage DC output port, wherein the AC input port is connected with a first AC/DC rectifier in series and then connected with the low-voltage DC output port; the AC input port is also connected with the rectifier in series and then connected with the high-voltage DC output port; the emergency power supply input port is connected with a first DC/DC converter in series and then connected with the low-voltage DC output port; and the emergency power supply input port is also connected with a second DC/DC converter and a relay in series and then connected with the high-voltage DC output port. Only various ports of the switching power supply device need to be connected with corresponding devices when the switching power supply device is used, so that the problem of complicated installation and operation of components in a traditional conventional design cabinet is solved; meanwhile, exposed electric wires and components in the cabinet are reduced; and the potential safety hazard is reduced.

The invention discloses a corner door type home elevator. The corner door type home elevator comprises a hoistway, a traction machine, a counterweight frame, a counterweight transition wheel, a speed governor, a rope gripper, a car, a landing door, a limiting device, a tensioning device, a buffer, a car frame, traction steel wires, an arrester and a control cabinet. The landing door is arranged between two adjacent surfaces of the hoistway, and the car is movably connected on guide rails of the car; the counterweight frame and counterweight blocks are arranged on counterweight guide rails, and the speed governor and the rope gripper are installed on the top of the hoistway; the limiting device and the tensioning device are installed on the bottom part of the hoistway; the traction machine is arranged on a traction machine pedestal, traction wheels are arranged on the traction machine, the buffer and the arrester are installed on the bottom part of the hoistway, and a tower spring silence structure is arranged in the control cabinet. According to the corner door type home elevator, the structure is optimized, corner space of the car is utilized; the traction machine is installed on the bottom part of the hoistway and inversely assembled, so that the manufacturing cost is low, the installation process is simple, the application scope is wide, and the space utilization rate is improved.

The invention discloses a manufacturing method of a fusing device. The manufacturing method comprises the following steps: providing a substrate, wherein the substrate is provided with a welding pad region and a fusing region, the welding pad region is provided with a welding pad, and the fusing region is provided with a fuse; making a passivation layer on the substrate; removing a part of the thickness of the passivation layer of the fusing region till a preset thickness is left for the passivation layer above the fuse; and selectively removing the passivation layer of the welding pad region to expose the welding pad. According to the manufacturing method of the fusing device, the welding pad is not in an exposed state in the step of selective removal of the passivation layer of the welding pad region, so that the exposure times of the welding pad are reduced, the corrosion times of the welding pad are reduced, surface defects of the welding pad are further reduced or eliminated, and the reliability of the device is enhanced.

The invention relates to a method for forming an adjuster brush frame, which comprises the following steps of blanking by utilizing a blanking mould pair to obtain a metallic adjuster brush-frame framework; placing the adjuster brush-frame framework into a punching mould for punching the adjuster brush-frame framework to form a hole at a required position; bending the punched adjuster brush-frame framework into a preset shape; carrying out preliminary injection molding on the adjuster brush-frame framework to form an inner injection-molding layer which is connected with the adjuster brush-frame framework; cutting off the preset positions of the adjuster brush-frame framework and the inner injection-molding layer; carrying out secondary injection molding on the cutoff adjuster brush-frame framework and the cutoff inner injection-molding layer to form an adjuster brush-frame body; and welding electrical elements, such as a lead, a thermal fuse, a conducting piece and the like on the adjuster brush-frame body to form the adjuster brush frame. According to the method for forming the adjuster brush frame, the secondary injection molding is then carried out after the adjuster brush-frame framework and the inner injection-molding layer are firstly cut off by a two-time injection-molding method, so that the occurrence of metal-exposing situations can be greatly reduced.

The invention discloses an intelligent glasses, which comprises a glasses frame and glasses legs, control assemblies in the glasses legs are electrically connected to a main control panel in the glasses frame through electric connecting pieces, the glasses legs are rotationally connected to the glasses frame through hinge assemblies, each hinge assembly comprises a hinge shell, and the two ends ofeach hinge shell are hinged to the glasses frame and the corresponding glasses leg correspondingly; and the electric connecting pieces penetrate through the interiors of the hinge shells from the glasses legs and then extend into the glasses frame. The electric connecting piece is arranged in the hinge shell, so that the exposure degree of the electric connecting piece can be reduced, the electric connecting piece is effectively protected, and the damage risk of the electric connecting piece is reduced.