48results about How to "Little impact on shape" patented technology

The invention discloses a mobile terminal housing and a processing method of the mobile terminal housing. The mobile terminal housing is a metal housing, and is provided with interval seams for dividing the mobile terminal housing into antenna areas and a remaining area; each interval seam is internally filled with an insulating layer; a printing layer is arranged on the outer surface of each insulating layer. The mobile terminal housing disclosed by the invention has the advantages that the printing layer is arranged on the outer surface of each insulating layer, and the printing layer can be formed into various types, so that the design of the mobile terminal housing is rich and colorful, and the diversification requirements of users are met; because of the decoration effect of the printing layer, the influence of the texture and color of the insulating layer to the appearance of the mobile terminal housing is reduced, therefore the material selection range of the insulating layer is wider, and a better-performace and cheaper material is beneficially selected.

The invention relates to a hemolytic agent for blood leukocyte five-classification counting and an application thereof. The hemolytic agent comprises a hemolytic agent A and a hemolytic agent B. The hemolytic agent A comprises a polyoxyethylene nonionic surfactant, an organic acid, a quaternary ammonium salt cationic surfactant cosolvent, a stabilizing agent and an osmotic regulator; the hemolytic agent B comprises alkaline inorganic salt and an osmotic regulator. When compared with the result detected by a standard hemolytic agent produced by BeckmanCoulter company, the hemolytic agent of the invention has good correlation and high accuracy. Especially, when abnormal cells exist in a blood specimen, the hemolytic agent has high warning sensitivity and good specificity, and exhibits the most beneficial effect.

The invention discloses a methylprednisolone production device, which comprises a reaction kettle, an elutriation kettle, a centrifugal filtration device, a concentration kettle, a decoloration kettle, a biological fermentation tank and a drying device which are connected in sequence, wherein the drying device comprises an outer cylinder, a drying cylinder and an inner cylinder; a motor is arranged on the bottom surface of the outer cylinder; an exhaust fan blade, a cylinder type impeller and a vortex impeller are arranged on a motor rotating shaft; the exhaust fan blade is arranged between the drying cylinder and the bottom surface of the outer cylinder; the cylinder type impeller is arranged between the drying cylinder and the inner cylinder; the vortex impeller is arranged at the bottomof the inner cylinder; an infrared heating pipe is arranged on the top surface of the inner cylinder; a feeding port is formed in the center of the upper end of the inner cylinder; the side wall of the outer cylinder comprises an inner layer wall and an outer layer wall; an annular interlayer cavity is formed between the inner layer wall and the outer layer wall; an annular baffle is arranged atthe outlet of the upper end of the interlayer cavity, a vent is formed in the baffle, and a rotatable air purification ring is arranged at the upper end of the baffle. According to the method, the preparation time of intermediate products in the production process of the methylprednisolone can be reduced, and rapid and high-quality production of the methylprednisolone can be realized.

The invention provides a method for preparing an Ag / PMMA (polymethyl methacrylate) nano composite material. Particularly, in the method, PMMA is used as a polymer matrix; PMMA is the English abbreviation of polymethyl methacrylate; silver nitrate is used as an Ag source; PVP (Polyvinyl Pyrrolidone) is used as a dispersing agent; PVP is the English abbreviation of polyvinyl pyrrolidone; DMF (N,N-dimethyl formamide) is used as a solution solvent and a reducing agent; and DMF is the English abbreviation of N,N-dimethyl formamide. The method comprises the following steps of: heating the PMMA, the silver nitrate, the PVP and the DMF and performing a reaction to obtain Ag / PMMA nano sol containing Ag nano particles; then removing the reducing agent DMF in the Ag / PMMA nano sol by adopting a solvent precipitation method; drying the obtained product; and carrying out heating and forming on the dried product to obtain the Ag / PMMA nano composite material. The method adopts a simple preparation process, can effectively solve the problem of the aggregation phenomenon when the Ag / PMMA nano composite material is prepared by a conventional method and realizes accurate design, regulation and control of diameter of particles and topography of the Ag nano particles.

Belonging to the technical field of food processing, the invention discloses a microwave combined heating method for improving surimi product gel strength. According to the invention, firstly conduction is employed for full gelatinization of surimi, then microwave heating is carried out to make surimi gel pass a gel cracking area quickly, the microwave combined heating way not only can improve the surimi gel strength and endow the required elasticity, but also can save a lot of time and improve production efficiency. Compared with ordinary microwave heating, the microwave combined heating method using conduction and microwave heat preservation, i.e. adjustment of the microwave power in a specified temperature interval to maintain the surimi product temperature for a period of time, can effectively improve the surimi gel strength, and follows the current new tendency of application of microwave heating in surimi products.

The invention relates to an optical fiber arrangement and bridge-forming method for a helicopter rotor composite load test and belongs to the technical field of helicopter load measurement. Through the arrangement and bridge-forming method for measurement of the composite load of a blade through optical fibers, load measurement of the optical fibers on a rotary rotor is achieved. The optical fiberarrangement and bridge-forming method for the helicopter rotor composite load test can be directly applied to measurement of the helicopter rotor composite load, and compared with an original measurement mode, the optical fibers in the optical fiber arrangement and bridge-forming method are smaller in size, lower in cost and longer in service life, so that the consumable material cost, the test repair time and the influence of an original test piece on the appearance of parts such as the blade in helicopter rotor load measurement are reduced by a large margin.

The invention discloses a multifunctional adjustable table lamp. The multifunctional adjustable table lamp comprises a base, a lamp holder, a fixed lamp cover and a handle; an atomizer is mounted on the base; a vertical transmission shaft penetrates through a center shaft at the lower end of a fixed cylinder through a bearing; a horizontal transmission gear is coaxially fixed on a corresponding transmission shaft in the base; one side of the transmission gear is in engaged connection with a horizontal driving gear; an arc locking pressure plate is arranged on the other side of the transmissiongear; an adjusting rod extends into the fixed cylinder, and the lower end sleeves the outer side of the transmission shaft; the fixed lamp cover with a longitudinal section as an arc structure is fixedly mounted on one side of the lamp holder; and an arc extension lamp cover is inserted in an extension inner cavity. The table lamp can manually rotate to adjust the height of the lamp holder as needed; and as the direction of the lamp holder is manually rotated, and the opening size of the extension lamp cover is manually adjusted, the influence on the appearance of the whole table lamp is lower, and the indoor decoration beauty is guaranteed.

A method for forming a semiconductor structure comprises the following steps: providing a substrate; forming gate structures on the surface of the substrate; forming an initial stress layer on the surface of the substrate on the two sides of the gate structures, wherein the material of the initial stress layer is amorphous; forming a cover stress layer on the surface of the initial stress layer; and after the cover stress layer is formed, converting the material of the initial stress layer into a crystalline material through a solid-phase process, and forming a source and drain stress layer. The morphology and the performance of the formed semiconductor structure are improved.

A non-woven fabric based PVDF (polyvinylidene fluoride) film preparation method includes the steps: preparing a composite film; adding 2g of PVDF powder into 100mL of butanone in batches; strongly stirring the powder and the butanone; filtering solution for three times by a 500-mesh screen to obtain uniformly clarified coating liquid; soaking a PP (polypropylene) non-woven fabric in the coating liquid for 20 seconds; rapidly taking out the PP non-woven fabric; drying the PP non-woven fabric in butanone atmosphere for 3 hours to obtain a non-woven fabric based PVDF composite film. The composite film is modified, potassium hydroxide (with the mass fraction of 15%) diaphragm treatment liquid is prepared, the ratio of ethyl alcohol to water in the potassium hydroxide is 1:1, a diaphragm is subjected to alkali treatment for 100 minutes at the temperature of 35 DEG C, the treated diaphragm is repeatedly soaked by deionized water until being neutral, and the diaphragm is finally subjected to vacuum drying for 6 hours at the temperature of 80 DEG C to obtain the modified composite diaphragm. The preparation method has the advantages that reaction conditions are mild, production cost is low, repeatability is good, lyophilic and liquid-absorbent properties of the diaphragm can be improved, the structure and the morphology of the diaphragm are less affected, and the method is simple and effective.

The invention discloses gypsum powder for construction and belongs to the field of chemical industry. Acrylic acid and methyl acrylate are introduced and then sodium methallyl sulfonate and methyl alkenyl polyoxyethylene polypropylene oxide block ether are copolymerized; four components are combined, and a polycarboxylic acid macromolecular substance is formed through initiator polymerization; after the polymerization, the hydrophobicity of a molecule is enhanced through a polypropylene oxide group; the gypsum powder has foam inhibition and foam elimination effects to that the macromolecular branching degree of polycarboxylic acid is higher and the stability of a structure is enhanced; a polymer is added into the gypsum powder, and the strength of gypsum is enhanced through changing the porosity and average pore diameter of the later-period gypsum. The problems of current gypsum powder that the compression strength is low and the dispersion performance is poor are solved.

The invention relates to a high-applicability ring. The high-applicability ring comprises a finger ring, an annular groove is arranged on the inner wall of the finger ring, an annular air bag is fixedat the bottom of the annular groove, the side surface of the finger ring is provided with an air inlet hole and air outlet hole communicated with the annular groove, the annular air bag is provided with an air inlet nozzle corresponding to the air inlet hole, and an air outlet nozzle corresponding to the air outlet hole, a one-way air inlet valve is arranged in the air inlet nozzle, a one-way airoutlet valve is disposed in the air outlet nozzle, an elastic film is disposed in the air inlet hole, the side of the elastic film is provided with an air hole, a sealing plug is arranged in the airoutlet hole, and after a finger wears the ring, if the ring is found to be loose, the elastic film can be pressed so that air is inflated to the air inlet nozzle and the air bag is inflated and expands to adaptively extrude the human finger, the extrusion position is located on the contact surface of the ring and the finger so that the influence on the ring shape is small, and if the ring is foundto be tight, the sealing plug is opened to discharge gas so that the ring adapts to a thicker finger. The high-applicability ring greatly improves the adaptability of the ring.

The invention relates to a novel supported metallocene catalyst and application thereof. The supported metallocene catalyst is prepared by using titanium dioxide nano tubes as carriers and used for catalyzing olefin polymerization. The supported catalyst can be used for preparing polyolefin of different forms under different polymerization conditions.

The present invention provides a synthesis method of cobaltous oxide nano tube. Said method includes the following steps: (a), in a soluble salt solution in which the cobaltous ions are dissolved, under the condition of stirring slowly-adding ammonia water solution until the precipitate is formed; (b), centrifugally washing the formed precipitate to make the pH value of washing liquor be neutral; (c), making the washed precipitate be again dispersed in the solvent, then adding reducing agent according to the weight portion ratio of washed precipitate: reducing agent=1:0.1-10, stirring them until they are completely dissolved; and (d), placing the above-mentioned materials into a closed reactor, making reaction for 5-30 h at 100-250 deg.C, cooling to room temperature, washing and drying so as to obtain the invented cobaltous oxide nano tube.

The invention provides a novel crystal inorganic salt drying device simple in structure and convenient to operate. The novel crystal inorganic salt drying device comprises a roller, and is characterized in that two rotation devices A are arranged on the roller, a rotation device B is connected below the rotation devices A, a bottom seat is arranged below the rotation device B, one end of the roller is connected with a cavity, the other end of the roller is connected with a material discharging box, a feed hopper is arranged on the cavity, a dust collector is arranged on one side of the cavity, the dust collector is connected with the cavity through a collection pipe, a collection bag and a suction ventilator are arranged in the dust collector, the suction ventilator is located on the exterior of the collection bag, an opening is formed in the material discharging box, a push and pull plate is arranged on the open portion of the material discharging box, a heat dissipation plate is arranged on the material discharging box, and an air fan A is arranged in the material discharging box. By adopting the above technology, the novel crystal inorganic salt drying device is high in heat efficiency, and evenly heats materials, the materials after being dried are easy to clot, products obtained by using the novel crystal inorganic salt drying device are stable in quality, the novel crystal inorganic salt drying device generates small influences on morphology of inorganic salt crystals, and furthermore the novel crystal inorganic salt drying device is simple in structure and convenient to operate.

The invention relates to a bicycle with a retracting bracket. The bicycle is characterized in that the bicycle comprises a bicycle body, the bicycle body comprises a handlebar body, and a bracket component is installed on the handlebar body; the bracket component comprises a fixed block, a cover board, a carrying press board and balls; the fixed block is fixed to a transverse frame, and a groove is formed in the upper portion of the fixed block; the cover board is installed on the fixed block through fasteners; an insertion groove is formed between the fixed block and the cover board; the carrying press board is inserted in the insertion groove and located in the groove, an L-shaped hook part opposite to the groove is arranged at the upper end of the carrying press board, and a balance weight part is arranged at the lower end of the carrying press board; and the balls are embedded in the cover board in a rolling mode, and the two balls are embedded in the cover board and located in theinsertion groove.

The invention relates to a bicycle handlebar with a bracket. The bicycle handlebar is characterized in that the bicycle handlebar comprises a handlebar body and a bracket component; the bracket component comprises a fixed block, a cover board, a carrying press board and balls; the fixed block is fixed to a transverse frame, and a groove is formed in the upper portion of the fixed block; the coverboard is installed on the fixed block through fasteners; an insertion groove is formed between the fixed block and the cover board; the carrying press board is inserted in the insertion groove and located in the groove, an L-shaped hooking part opposite to the groove is arranged at the upper end of the carrying press board, and a balance weight part is arranged at the lower end of the carrying press board; and the balls can be embedded in the cover board in a rolling mode, and the two balls are embedded in the cover board and located in the insertion groove. The bracket component in the bicycle handlebar is simple in structure and small in occupied space above the handlebar when in a folded and not used state, normal use of a bicycle cannot be affected, and the influence on the appearanceof the bicycle is small.

The invention relates to a hemolytic agent for blood leukocyte five-classification counting and an application thereof. The hemolytic agent comprises a hemolytic agent A and a hemolytic agent B. The hemolytic agent A comprises a polyoxyethylene nonionic surfactant, an organic acid, a quaternary ammonium salt cationic surfactant cosolvent, a stabilizing agent and an osmotic regulator; the hemolytic agent B comprises alkaline inorganic salt and an osmotic regulator. When compared with the result detected by a standard hemolytic agent produced by BeckmanCoulter company, the hemolytic agent of the invention has good correlation and high accuracy. Especially, when abnormal cells exist in a blood specimen, the hemolytic agent has high warning sensitivity and good specificity, and exhibits the most beneficial effect.

The invention relates to an optical fiber arrangement and bridge-forming method for a helicopter rotor composite load test and belongs to the technical field of helicopter load measurement. Through the arrangement and bridge-forming method for measurement of the composite load of a blade through optical fibers, load measurement of the optical fibers on a rotary rotor is achieved. The optical fiberarrangement and bridge-forming method for the helicopter rotor composite load test can be directly applied to measurement of the helicopter rotor composite load, and compared with an original measurement mode, the optical fibers in the optical fiber arrangement and bridge-forming method are smaller in size, lower in cost and longer in service life, so that the consumable material cost, the test repair time and the influence of an original test piece on the appearance of parts such as the blade in helicopter rotor load measurement are reduced by a large margin.

The invention provides a poly glycidyl methacrylate microsphere synthesis and surface modification method, and relates to a solid phase carrier surface modification method. The method comprises: 1) adding polyvinylpyrrolidone, azobisisobutyronitrile and a monomer GMA to a container filled with an ethanol and water mixing solvent, vacuumizing, introducing nitrogen gas, and carrying out a reflux reaction to obtain a milky white liquid; 2) carrying out centrifugation washing on the milky white liquid obtained in the step 1), and drying to obtain the white solid powder PGMA microspheres; 3) adding the PGMA microspheres obtained in the step 2) to ethylene diamine and deionized water, carrying out a reflux reaction, carrying out centrifugation washing, and drying to white solid powder PGMA-NH2 microspheres; and 4) adding the PGMA-NH2 microspheres obtained in the step 3) to a methanol solvent of zwitterionic carboxy betaine, carrying out a reaction, carrying out centrifugation washing, and drying to the solid powder poly glycidyl methacrylate microspheres. According to the present invention, the poly glycidyl methacrylate microspheres have good dispersion property, the reaction conditions are mild, the influence on the morphology of the microspheres is low, the operation is simple, and the reaction cost is low.

The invention provides a method for preparing an Ag / PMMA (polymethyl methacrylate) nano composite material. Particularly, in the method, PMMA is used as a polymer matrix; PMMA is the English abbreviation of polymethyl methacrylate; silver nitrate is used as an Ag source; PVP (Polyvinyl Pyrrolidone) is used as a dispersing agent; PVP is the English abbreviation of polyvinyl pyrrolidone; DMF (N,N-dimethyl formamide) is used as a solution solvent and a reducing agent; and DMF is the English abbreviation of N,N-dimethyl formamide. The method comprises the following steps of: heating the PMMA, thesilver nitrate, the PVP and the DMF and performing a reaction to obtain Ag / PMMA nano sol containing Ag nano particles; then removing the reducing agent DMF in the Ag / PMMA nano sol by adopting a solvent precipitation method; drying the obtained product; and carrying out heating and forming on the dried product to obtain the Ag / PMMA nano composite material. The method adopts a simple preparation process, can effectively solve the problem of the aggregation phenomenon when the Ag / PMMA nano composite material is prepared by a conventional method and realizes accurate design, regulation and control of diameter of particles and topography of the Ag nano particles.

The invention relates to a handlebar structure of a bicycle. The handlebar structure of the bicycle is characterized in that the handlebar structure comprises a handlebar body and a bracket assembly;the bracket assembly includes a fixed block, a cover plate, a support-pressing plate and ball bearings; the fixed block is fixed to a cross frame, and a groove is formed in the upper portion of the fixed block; the cover plate is installed on the fixed block through fasteners; an inserting slot is formed between the fixed block and the cover plate; the support-pressing plate is installed in the inserting slot in an inserting mode, the support-pressing plate is located in the groove, an L-shaped hook part opposite to the groove is arranged at the upper end of the support-pressing plate, and a counterweight part is arranged at the lower end of the support-pressing plate; the ball bearings are installed on the cover plate in an inserting and rolling mode, the two ball bearings are installed on the cover plate in an inserting mode, and the ball bearings are located in the inserting slot. The bracket assembly is simple in structure and occupies a small space above a handlebar under the condition that the bracket assembly is closed and not in use, the normal use of the bicycle is not affected, and the influence on the appearance of the bicycle is small.

The present invention provides a synthesis method of cobaltosic oxide nano tube. Said method includes the following steps: (a), in a soluble salt solution in which the cobaltous ions are dissolved, under the condition of stirring slowly-adding ammonia water solution until the precipitate is formed; (b), centrifugally washing the formed precipitate until the pH value of said washing liquor is neutral; (c), making the washed precipitate be again dispersed in the solvent, adding inorganic salt as mineralization agent according to be weight portion ratio of washed precipitate; inorganic salt=1:0-3, stirring them to make them be completely dissolved; and (d), placing the above-mentioned materials into a closed reactor, making reaction for 5-30 h at 100-250 deg.C, cooling to room temperature, washing and drying so as to obtain the invented cobaltosic oxide nano tube.

The invention relates to a bicycle with a triangle front fork frame. The bicycle is characterized by comprising a bicycle body, wherein the bicycle body comprises a handlebar body; a bracket assemblyis mounted on the handlebar body; the bracket assembly comprises a fixing block, a cover plate, a supporting and pressing plate and balls; the fixing block is fixed on a horizontal frame; a groove isarranged at the upper part of the fixing block; the cover plate is mounted on the fixing block by fasteners; an insertion groove is formed between the fixing block and the cover plate; the supportingand pressing plate is inserted in the insertion groove; the supporting and pressing plate is positioned in the groove; an L-shaped hook part opposite to the groove is arranged at the upper end of thesupporting and pressing plate; a counterweight part is arranged at the lower end of the supporting and pressing plate; the balls are mounted on the cover plate in a rollable manner; the two balls areembedded in the cover plate; and the balls are positioned in the insertion groove.

The invention relates to a liquid suspension control device and method. The liquid suspension control device comprises a suspension channel, a draught fan, spray nozzles and an air hose used for conveying airflow generated by the draught fan. The spray nozzles are located on one or both sides of the suspension channel. The suspension channel comprises a water channel and an air channel, wherein the air channel is located at the upper portion of the suspension channel and provided with an air inlet, and the air inlet is opposite to the spray nozzles and is used for inflowing of airflow; the water channel is located at the lower portion of the suspension channel; sealing plates are arranged on the two sides of the water channel; airflow enters the suspension channel through the air inlet and forms an airflow field in the suspension channel; air films updating continuously are formed between liquid drops and liquid under the action of the airflow field, so that the liquid drops suspend over the liquid surface and move along the suspension channel. Through renewal of air in the air films, the air pressure of the air films is increased, the stability of the air films is enhanced, and liquid drops can both stop and move. The liquid suspension control device and method can be used for storage and transportation of liquid.

The invention relates to the technical field of folding machines, and discloses an automatic multifunctional folding machine. The automatic multifunctional folding machine comprises a folding box, a paper feeding system is fixedly connected to the interior of the folding box, a paper discharging mechanism is fixedly connected to the lower portion of the right side of the interior of the folding box, and a paper discharging plate is rotatably connected to one side of the paper discharging mechanism. A supporting disc is detachably connected to the left side of the interior of the folding box, a battery box is fixedly connected to the interior of the supporting disc, a storage battery is installed in the battery box, and a button is fixedly connected to the left side of the battery box. When the improved device is used, a worker can directly place a pile of paper on the supporting disc, due to the fact that the supporting disc is provided with an arc-shaped face, the paper is naturally bent after being placed, the situation that the paper is manually bent by the worker is simulated, tight attachment of the paper can be reduced, a U-shaped strip is rotated to be located above the paper, and the paper does not make contact with the U-shaped strip; and the U-shaped strip can play a role in shielding, so that hard paper is prevented from standing.

The invention discloses a methylprednisolone production device, which comprises a reaction kettle, an elutriation kettle, a centrifugal filtration device, a concentration kettle, a decoloration kettle, a biological fermentation tank and a drying device which are connected in sequence, wherein the drying device comprises an outer cylinder, a drying cylinder and an inner cylinder; a motor is arranged on the bottom surface of the outer cylinder; an exhaust fan blade, a cylinder type impeller and a vortex impeller are arranged on a motor rotating shaft; the exhaust fan blade is arranged between the drying cylinder and the bottom surface of the outer cylinder; the cylinder type impeller is arranged between the drying cylinder and the inner cylinder; the vortex impeller is arranged at the bottomof the inner cylinder; an infrared heating pipe is arranged on the top surface of the inner cylinder; a feeding port is formed in the center of the upper end of the inner cylinder; the side wall of the outer cylinder comprises an inner layer wall and an outer layer wall; an annular interlayer cavity is formed between the inner layer wall and the outer layer wall; an annular baffle is arranged atthe outlet of the upper end of the interlayer cavity, a vent is formed in the baffle, and a rotatable air purification ring is arranged at the upper end of the baffle. According to the method, the preparation time of intermediate products in the production process of the methylprednisolone can be reduced, and rapid and high-quality production of the methylprednisolone can be realized.