66results about How to "Increase chimerism" patented technology

The invention discloses an electromagnetic water inlet valve capable of solving the problem that the normal work cannot be carried out due to excessively-low pressure. The electromagnetic water inlet valve comprises a valve body and a valve seat arranged in the valve body, wherein the valve body is provided with a conduit; a piston is arranged in the conduit; the head part of the piston is connected with a piston nut; a convex part is arranged at one end of the piston corresponding to the valve seat; the piston nut is arranged at the convex part; a diaphragm plate has a connecting structure which is provided with a moving space and a top buckle edge of the piston convex part; the piston convex part is positioned in the moving space; the axial length of the piston convex part is less than that of the moving space, so that the piston convex part is hooked with the top buckle edge of the connecting structure after moving towards the direction away from the valve seat for a stroke in the moving space; and the piston convex part continuously moves to drive the diaphragm plate and a diaphragm together to move towards the direction away from the valve seat. The invention is suitable for a water inlet valve of a washing machine and other home appliances.

The invention belongs to technical field of animal genetic engineering, and specifically relates to immunodeficient mice, a manufacturing method thereof and applications. The manufacturing method comprises using NOD-Scid IL2rg- / - immunodeficient mice (NSI mice), and deleting Foxnl gene or Fah gene. Through deleting the Fah gene on the NSI mice, NSIF mice are obtained. The NSIF mice can be used to efficiently establish a novel humanized mouse model, used for liver physiological and pathological research. Through deleting the Foxnl gene on the NSI mice, the NSIF mice are obtained. The NSIF mice have no body hair, and immune system is further defected. The NSIF mice provide convenience for establishment, monitoring, and measurement of solid tumor.

Provided is an optical detection device capable of suppressing increase in size, capable of being arranged at a suitable place in an image forming device with many space constraints, and capable of eliminating adverse effects on optical characteristics. In the optical detection device of the "toner image pattern" formed on the detection object, there is at least a printed circuit board 76, a light emitting element 71 and a light receiving element 74 mounted on the printed circuit board, and light shielding members 75 and 77. sensor. In order to detect the surface of the aforementioned detection object, at least one optical sensor will be disposed on the above-mentioned printed circuit board 76, and a part of the optical sensor circuit components 78a, 78b and 78c on the printed circuit board is housed in the aforementioned light shielding member 75 and 77 in.

A tube type cable protection and guide device in which the device can be easily manufactured by extrusion molding without changing the size of a mold so that devices of different lengths can be made. Smooth linear and flexional movements can be made while sufficiently ensuring dimensional stability and torsional rigidity of the device thus assuring stability of the cable accommodating space. A tube type cable protection and guide device includes integrally molded inner circumferential wall forming portions. The inner wall forming portions are interdigitatedly fitted in a male-female relationship in a longitudinal direction of the sheet forming a flush inner flat surface.

Provided are a cap (1) which can improve the sealing property of a container and which is suitable for use in the case where the internal pressure of the container is high such as the case where the content of the container is carbonated beverage, and a container (2) with the cap. The cap comprises a cap body (4) which has a top wall (6) and a skirt wall (7) drooping from the outer periphery of the top wall (6) and in which a female screw (9) which is fit to a male screw (10) of an opening (3) of the container is formed in the skirt wall (7), and a composite resin packing (5) for sealing the opening (3) of the container. The packing (5) comprises a top plate (17) which comes into contact with the leading end portion of the opening (3) of the container and with which the end portion is covered, and a circular inner foot (18) which droops from the top plate (17) and which is adhered to the inner periphery surface of the opening (3) of the container. Further, a circular bending portion (19) which bends downward relative to the top plate (17) and with the inner periphery surface of which the outer periphery surface of the opening (3) of the container is covered is provided in continuous with the outer periphery edge of the top plate (17). Further, the cap body (4) comprises an urging portion (21) for urging the outer periphery surface of the bending portion (19) of the packing (5)in a closed state and the bending portion (19) urged is elastically transformed to be pushed to the outer periphery surface of the opening (3) of the container.

The invention provides an EBM molded titanium implant and a preparation method and application thereof and belongs to the technical field of biomedical implant materials. The preparation method of theEBM molded titanium implant comprises the step of carrying out aftertreatment on a titanium implant molded in an EBM manner, wherein the aftertreatment comprises ultrasonic acid etching and anodic oxidation. According to the preparation method, during the preparation of the EBM molded titanium implant, the EBM molded titanium implant is subjected to surface treatment by adopting ultrasonic acid etching and anodic oxidation, so that residual powder can be effectively removed, and meanwhile, a micro-nano multistage structure beneficial to cell adhesion, propagation and differentiation is prepared on the surface of the titanium implant. The preparation method provided by the invention is simple and convenient, the consumption of chemical reagents can be effectively lowered; meanwhile, the prepared titanium implant has a rich micro-nano multistage structure, and thus, the osteogenesis activity of the implant can be effectively promoted; meanwhile, the bone integration capability of the implant can be effectively enhanced, the success rate of planting is increased, and thus, the EBM molded titanium implant and the preparation method thereof have broad application prospects.

A bearing device for a wheel, in which circumferential play is suppressed, which facilitates connection between a hub ring and an outer coupling member, in which a reduction in NVH characteristics due to play at a joint between the hub ring and the constant velocity universal joint and by play between a bearing outer member and a knuckle is prevented, and which performs highly accurate transmission of rotational torque. The bearing device has a groove-ridge fitting structure (M) by which the hub ring (1) and a shaft section (12) of the outer coupling member of the constant velocity universal joint (3) are integrated together, and the shaft section (12) is fitted in a hole (22) of the hub ring (1). In the groove-ridge fitting structure (M), ridges (35) on the outer diameter surface of the shaft section (12) and grooves (36) in the inner diameter surface (37) of the hub ring (1) are fitted to each other in a fitting contact portion (38), and the ridges (35) and the grooves (36) are in intimate contact with each other in the entire fitting contact portion (38).

A synthetic resin cap having excellent tamper evidence properties, simultaneously achieving both good sealing ability and easiness of opening of the cap, and capable of reliably preventing leakage of container contents before a bridge is cut. The synthetic resin cap has a top wall, a skirt wall, and a tamper evidence band connected to the skirt wall via the bridge. A middle leg, an annular protrusion, and an outer leg are formed integrally with the inner surface of the top wall. The thickness in lateral cross sections of an intermediate section of the middle leg is substantially constant in the vertical direction. The inner and outer peripheral surfaces of the intermediate section are circular arc curved surfaces protruding radially inward so as to have substantially the same curvature in a vertical cross section of intermediate section. A guide surface for guiding a container mouth section is provided on the outer peripheral surface of the tip of the middle leg. The intermediate section is tilted radially outward so that, when the middle leg is inserted into the container mouth section, the upper end of the guide surface moves radially inward by 0.1 - 0.6 mm.

Provided is a bearing device for a wheel that can realize prevention of a backlash in a circumferential direction and is excellent in workability of connection of a hub wheel and an outer joint member of a constant velocity universal joint. Further, provided is a bearing device for a wheel that can prevent deterioration in NVH characteristics, which is caused by the backlash occurring in a joint section between the hub wheel and the constant velocity universal joint or between an outer member and a knuckle, and can perform rotation torque transmission with high accuracy. The bearing device includes a recess-projection fitting structure (M) in which the hub wheel (1) and a shaft section (12), which is fitted in a hole (22) of the hub wheel (1) of the outer joint member of the constant velocity universal joint (3) are unitized together. In the recess-projection fitting structure (M), entire fitting regions among projections (35) on the outer surface of the shaft section (12) of the outer joint member and recesses (36), which fit on the projections, are brought into intimate contact with each other.

Provided are: a plated material which has excellent abrasion resistance, electrical conductivity and sliding performance and low friction, and in which a plating layer does not undergo embrittlement properly; and a method for producing the plated material. The present invention is a method for producing a plated material, said method being characterized by comprising: a first step of removing at least a part of a reflow tin plating layer from a metallic base material, wherein the metallic base material has the reflow tin plating layer on at least a part thereof and a reactive layer is provided at the interface between the reflow tin plating layer and the metallic base material; a second step of subjecting at least a part of a region in which the reflow tin plating layer has been removed to a nickel plating treatment; a third step of subjecting at least a part of a nickel plating layer formed by the nickel plating treatment to a silver strike plating treatment; and a fourth step of subjecting at least a part of a region on which the silver strike plating treatment has been applied to a silver plating treatment.

The invention discloses an infiltrating-concretion experiment device with a plurality of experiment control conditions and a using method. The infiltrating-concretion experiment device comprises a protective ring of an annular structure, an experimental soil sample is arranged in the protective ring, a piston is arranged on the upper part of the protective ring, a displacement meter guiding rod isarranged on the upper part of the piston, a displacement meter frame is arranged on one side of the outer part of the protective ring, and the horizontal section of the displacement meter frame is suspended on the upper part of the displacement meter guiding rod; the deformation of the soil sample is surveyed through the displacement meter guiding rod, a lower protective ring is sleeved on the lower part of the protective ring, the upper part of the protective ring is connected with a water storage cup through a pipeline, the lower protective ring is connected with a pore pressure device andthe water storage cup through pipelines, and the lower protective ring is used for observing the pore water pressure variation rules and the water outlet amount of the concretion experiment. The infiltrating-concretion experiment device solves the problems of repeated manufacturing of a soil sample converting instrument is tedious, the experiment condition is simplex, and the displacement volume is imprecise existing in the prior art.

The invention relates to the field of medical instruments, in particular to a cushion block for rebuilding and reconstructing an acetabular bone and a fixing structure of the cushion block and an acetabular cup prosthesis. The cushion block is located between the acetabular cup prosthesis and the acetabular bone and connected with the acetabular cup prosthesis and the acetabular bone; the cushion block comprises a first component and a second component which is the same as or different from the first component in radius and shape, the first component is movably connected with the second component, and the shape of the first component and the shape of the second component are matched with the defect position of the acetabular bone after the first component and the second component are connected. The first part and the second part which are the same or different in radius and shape are movably connected, the shape formed by combining the first part and the second part is matched with the shape of the defect position of the acetabular bone, and therefore the defect position of the acetabular bone can be better repaired, the first part and the second part are suitable for acetabular bone defects of different shapes, and the acetabular bone defect repairing effect is better. The acetabular bone is better reconstructed and fixed, subsequent fixation of the acetabular cup prosthesis is facilitated, and the effect of operation flexibility is improved through the split structure of the cushion block.

Provided is a pneumatic tire that can exhibit performance similar to or exceeding that of the prior art, while weight is reduced using a composite cord comprising a material other than a metal in a bead core. A pneumatic tire comprising an annular bead core (5) embedded in a bead part (3), and a carcass layer (4) interlocked in the bead core (5), wherein the bead core (5) has a cable bead structure in which a composite cord (10), which includes core wires (11) comprising carbon fibers and a plurality of side wires (12) comprising glass fibers and disposed around the peripheries of the core wires (11), is wound into a helical formation around an annular core (20).

The invention provides a thrombectomy device and a medical device.The medical device comprises the thrombectomy device, the thrombectomy device comprises a pushing shaft, a thrombectomy stent and an auxiliary mechanism, and the thrombectomy stent is a self-expanding stent and fixedly connected to the far end of the pushing shaft; and the auxiliary mechanism is partially arranged in the thrombectomy stent and is used for applying radial outward expansion force to the thrombectomy stent, so that the thrombectomy stent can perform secondary expansion in the radial direction after self-expansion. A thrombus is captured by utilizing the thrombectomy device, and if the thrombus cannot be effectively captured due to insufficient radial force of the thrombectomy stent, the auxiliary mechanism can be utilized to apply the expansionary force to the thrombectomy stent, so that the thrombectomy stent is secondarily expanded, the radial force is enhanced, and the thrombus capturing effect is improved.

The invention provides novel asphalt concrete and a preparation process thereof. The novel asphalt concrete is prepared from the following raw materials in percentage by weight: 2.5 to 4.5 percent oflimestone mineral powder, 2 to 3.5 percent of fly ash, 4 to 6 percent of asphalt, 0.8 to 1.3 percent of modified basalt chopped fiber, 2.5 to 6 percent of bentonite-loaded nano SiC-TaC composite material and the balance of coarse and fine aggregates. The preparation process comprises the following steps: (1) weighing the raw materials; (2) heating the coarse and fine aggregates to 125-130 DEG C, and heating the asphalt to 130-135 DEG C for later use; and (3) sequentially adding limestone mineral powder, fly ash, modified basalt chopped fibers and the bentonite-loaded nano SiC-TaC composite material into a stirrer, stirring for 10-15 minutes at 125-130 DEG C, adding asphalt, stirring, adding coarse and fine aggregates, and stirring to obtain the finished material. The mixing temperature islow, the dispersing performance of all modified substances is good, and the prepared asphalt concrete is high in high-temperature deformation resistance, good in ageing resistance, high in stability and excellent in comprehensive performance.

The invention discloses a mounting design structure of an ultra-large hyperboloid modeling felt plate embedded with a light-transmitting soft film, and belongs to the technical field of building decoration. The mounting design structure comprises a plurality of arc-shaped keels and at least two base plates, and the arc-shaped keels are hung on a wall top through a plurality of suspenders and parallel to one another; and the at least two base plates are fixedly mounted on the multiple arc-shaped keels, and a gap is reserved between the at least two base plates. The arc-shaped keels are hung on the wall top through the hanging rods, the base layer plates are fixed to the arc-shaped keels, the two ends of a soft film body are clamped to the base layer plates, a gap is filled with the two ends of the soft film body, so that the soft film body forms good transition between the two base layer plates, a felt plate body is fixedly mounted on the base layer plates in an inserted connection mode, the felt plate body is convenient to mount and covers the joint position of the base layer plates and the soft film body, the felt plate body abuts against the soft film body, so that the embedding effect between the soft film body and the felt plate body is good, and the decoration effect is good.

The invention relates to a preparation method of a highly-impermeable rubber concrete material, and belongs to the technical field of concrete materials. A sol material is prepared by using anhydrousaluminum chloride and aluminum powder as aluminum sources and tetraethyl orthosilicate as a silicon source, the surface of a rubber material is coated with the sol material, and the uniform dispersionof the sol material on the surface of the rubber material body forms new entanglement points, so the entanglement of the rubber material and the molecular chain of the surface of the concrete material is enhanced, thereby the tensile strength of the composite material is increased; and coating modification using the sol makes the sol and the rubber material form a good wetting interface, so fibers, a mixture and the rubber material are uniformly dispersed in a matrix; and modification using the sodium hypochlorite composite silica sol and surface oxidation and chlorination using sodium hypochlorite are carried out to realize the surface modification of rubber composite material, so the number of polar groups on the surface is increased, the wettability is improved, the roughness is improved, the mechanical strength of the material is improved, and the impermeability of the material is improved.

The invention provides an integral sprayed wall body structure with internal and external molds. The structure comprises a steel mesh and a leaf wall, wherein the steel mesh is used as the parallel internal molds and / or external molds, two internal molds are inside, two external molds are respectively located on both sides of the internal molds, a light steel keel framework connected with the internal molds is arranged between the internal molds, and structural columns / beams are connected to two ends of the light steel keel framework in an assembly mode through connectors; separators are arranged between the internal molds and the external molds, and the separators, the internal molds and the external molds are fixedly connected with each other; the external molds are provided with meshes,a leaf wall material is sprayed on the external molds to form a leaf wall, and the leaf wall material penetrates through the meshes of the external molds to connect and cover the internal molds. According to the structure, the wall body framework has high strength and good embedment between the leaf wall material and the wall body framework, and a flexible connection and a special expansion jointare formed by the wall body and the structural columns / beams, so that the wall body material is controlled inside the expansion joint through the stress caused by the temperature difference change, and the cracking defect of the wall body is effectively overcome.

The invention discloses a flammulina velutipes medium, which is composed of palm fiber, rice straw, potato starch, glycerol, ethylene glycol, a 5-8wt% NaOH solution, peanut shell, humic acid powder, plant ash, Chinese medicine residue, sodium alginate, soybean powder, citric acid, amino acid, mushroom residue, fish oil and water. The invention utilizes the principle of liquid fermentation, organic matters are firstly subjected to fermentation, the fermentation broth is rich in nutrition, and can quickly be absorbed by flammulina velutipes. The flammulina velutipes medium also contains straw fiber, and belongs to a fibrous matter with good toughness and strong water absorption after structural treatment, and can be used cooperatively with the added liquid nutritional components to play a storage role, and high toughness endows the medium with a good structural framework, and the medium can still maintain a fluffy state after a long time. The medium provided by the invention is suitable for use as a flammulina velutipes medium.