1083results about How to "Easy to break away" patented technology

A fluid delivery device having a self-contained stored energy membrane for defining in conjunction with a base a fluid reservoir and for expelling fluids from the reservoir. The device includes novel reservoir filling syringe and filling adapter for conveniently filling the fluid reservoir of the device. Additionally, the device includes a unique crushable or collapsible needle cover which surrounds and protects the infusion cannula until time of use and then readily deforms as the device is connected to the patient so as to permit the needle to cleanly penetrate the patient's skin. The needle cover maintains the cannula in a substantially aseptic condition and enables self-administration by patients, such as young patients or needle adverse patients, which does not require their consciously inserting a needle into the skin.

Systems and methods according to the present invention relate to a substantially extracorporeal pulse generator system for electrical stimulation of one or more target nerve or their branches using one or more preferably percutaneous leads each having one or more electrodes implanted in, on, around, or near the target nerve. Improved systems include a patch assembly configured to be adhesively mounted to a patient's skin and an electrical stimulation assembly configured to be mechanically mounted to the patch assembly. A preferred patch assembly, in addition to provide mechanical mounting of the stimulation assembly, provides a power source for the stimulation assembly, and may further serve as a return electrode. Associated system components and methods of use are also provided.

The invention provides a boiler coal combustion-improving desulfurizing and denitrifying agent composition. The composition comprises the following raw materials in parts by weight: 2-7 parts of sodium carbonate, 1-3 parts of alumina, 2-8 parts of aluminium hydroxide, 2-5 parts of ferric trichloride, 2-6 parts of ferric oxide, 3-10 parts of potassium permanganate, 3-10 parts of potassium chlorate, 10-35 parts of activated attapulgite clay, 15-30 parts of urea, 2-4 parts of ammonium formate, 2-4 parts of ammonium chloride, 6-23 parts of ammonium acetate, 3-9 parts of manganese oxide, 9-12 parts of copper chloride, 1-3 parts of copper oxide, 2-4 parts of zinc sulfate, 1-3 parts of zinc nitrate, 7-18 parts of potassium dichromate, 1.0-1.5 parts of titanium dioxide, 0.5-1.0 part of barium molybdate, 0.5-1.5 parts of cobalt sulfate, 0.5-1.5 parts of vanadium pentoxide, 0.3-0.7 part of cerium oxide, 0.1-0.2 part of sodium dodecyl benzene sulfonate and 0.1-0.2 part of alkyl glyceryl ether. The composition is convenient to use, has stable properties, plays roles of combustion improving, desulfurization and denitrification, has coal saving rate of 8-25% and can remove fixed sulfur by 50-70%.

The invention discloses a stainless steel plate type heat exchanger and a processing molding method thereof. The plate type heat exchanger comprises a snakelike flow channel type and honeycomb flow channel type evaporation plate or a cold plate. The plate type heat exchanger adopts a stainless steel plate and consists of a stainless steel upper plate, a stainless steel lower plate, an inlet pipe and an outlet pipe, wherein the two stainless steel plates are overlapped and connected by a special welding method; the inlet pipe and the outlet pipe are inserted in the upper end and the lower end between the two stainless steel plates and are connected with the stainless steel plate type heat exchanger body by using an electric arc welding method; and then the plate type heat exchanger is finally molded through a mould and high-pressure bulging technology.

The invention relates to an ice coating resistance paint which has the following main components: 20-70% of fluoropolymer resin, 1-7% of fluorine-containing surfactant, 2-7% of aluminum hydroxide, 1-5% of nano-powder, 0.1-2% of metallic drier, 20-80% of solvent. The ice coating resistance paint composition can perform the best effect in ice coating resistance when applied to high-voltage cables, iron towers, communication lines and the like, thus reducing adhesive force of the ice on the surface of base material and ice concentration on the surface of the base material; then under the effect of wind and natural force, the ice is easy to be separated from the surface of the base material. The ice coating resistance paint has very good binding force on metal matrix, relatively high thermal conductivity, what is more, the outer surface of the paint features low surface tension, high hydrophobicity and ice-phobic property, thus reducing hydration adhesive force at utmost and facilitating the ice to fall off extremely easily and realizing the aim of preventing ice-forming and removing the ice. The method features simple and easy feasibility in engineering, convenient control, relatively low cost and good using effect.

The invention provides a supported ionic liquid catalyst for preparing vinyl acetate in an acetylene method, the catalyst adopts mesoporous molecular sieve as a carrier and adopts zinc acetate as an active component, and the carrier and the active component are connected by imidazole acetate ionic liquid. The invention further provides a preparation method of the catalyst and an application in preparing the vinyl acetate in the acetylene method. The active component of the zinc acetate of the supported ionic liquid catalyst is bond-coupled on the surface of the carrier in a chemical method and is not easy to be lost in the reaction process; the carrier of the mesoporous molecular sieve provides suitable reaction space for catalytic reaction, and carbon deposition is not easy to be generated; the ionic liquid forms a pseudophase liquid microenvironment on the surface of the catalyst, thus improving the mass transfer and heat transfer in the reaction process; and the catalyst has good stability, long service life, high activity and good selectivity.

A pipe clamp 10 for repairing an underwater pipe. The pipe clamp 10 comprises a plurality of part-cylindrical portions 12,14,16 hinged together along a hinge axis or axes 27 along adjacent longitudinal edges 17,18. Two or the longitudinal edges 20,21 of the part-cylindrical portions are free. The part-cylindrical portions 12,14,16 are movable about the hinge axis or axes 27 towards and away from one another between an open position in which the free longitudinal edges 20,21 are spaced apart and the clamp 10 can be placed around a pipe and a closed position in which, in use, the free longitudinal edges 20,21 of the part-cylindrical portions 12,14,16 are brought together around the pipe. Fastening means are provided for holding the free edges 20,21 of the part-cylindrical portions 12,14,16 together, such that, in use, the clamp 10 is held to the pipe.

A process for modifying kaolinite includes such steps as proportionally mixing kaolinite, dispersing modifier, acid solution and deionized water, beating, calcining, cooling, and washing with deionized water. The modified kaolinite has large specific surface area and pore volume, and high catalytic activity.

The present invention is soft template an ultraviolet curing process to prepare surface super hydrophobic material, and belongs to the field of solid material surface modifying technology. The surface super hydrophobic material is prepared through preparation of elastic soft template, setting the pre-polymer between the elastic template and the base board, ultraviolet irradiation to cure and eliminate the elastic template to obtain surface super hydrophobic material. The surface super hydrophobic material of cross-linked polymer is adhered onto the base board and is easy to separate from the elastic template. The surface super hydrophobic material has pattern copied from the elastic template, excellent super hydrophobic performance and surface water contact angle at room temperature greater than 150 deg. The surface super hydrophobic material has simple preparation process, high polymerization efficiency, less pollution, low cost and environment friendship.

The invention provides an automatic batching apparatus and a batching method. The apparatus comprises a control cabinet, batching bins with blanking devices, a mobile weighing disc. The batching bins are provided with quantitative blanking devices, which are connected with the control cabinet; a plurality of batching bins are in linear arrangement; blanking ports of the batching bins are in a straight line, and a conveyor belt is arranged right below the blanking ports of the batching bins; the weighing disc comprises a weighing bucket and an electronic scale; and the electronic scale is placed on the conveyor belt, and is connected with the control cabinet through a circuit. The control cabinet conducts remote blanking control on blanking of batching bins and movement of the weighing disc. Compared with the current automatic blanking apparatus and blanking method, the apparatus and method provided by the invention save manpower and material source, realizes automatic operation, more precise and reliable dropping material control, and greatly improves the efficiency of material proportion.

The invention discloses a low-ice-adhesion anti-icing coating, and a preparation method and application thereof. The low-modulus polymer elastic network structure is prepared by cure-crosslinking, and the boundary lubrication established by transfer of free chains in the network structure is utilized to achieve the goal of low adhesion. Compared with other anti-icing paints, the coating disclosed by the invention has the characteristics of low-temperature / high-humidity environment resistance, abrasion resistance, environmental protection and the like. The low-ice-adhesion anti-icing coating is a flexible substrate; and according to the JKR adhesion theory on the flexible substrate, the low elastic adhesion of the flexible substrate is implemented by reducing the elastomer modulus and increasing the thickness. Free chains are maintained in the polymer network, and the free chains transfer to the surface to implement boundary lubrication, so that the ice can easily depart from the substrate surface under the action of gravity or wind; and thus, the low-ice-adhesion anti-icing coating has great application value in the field of anti-icing. The preparation method is simple, is easy to operate and low in cost, and is green and environment-friendly.

The invention relates to a thawing technology, in particular to an ultrasonic thawing device and method and application in ice breaking and defrosting. The ultrasonic thawing device comprises a machine body and a freezing area arranged on the machine body, wherein the freezing area comprises a thawing cabinet and a cold storage cabinet capable of freezing food, the thawing cabinet is provided with an ultrasonic thawing apparatus, the ultrasonic thawing apparatus breaks ice on the frozen food in the thawing cabinet under the freezing environment, so that nutritional substances of the food can be prevented from being lost along with the water, the original taste of the food is ensured, the taste is good, and the thawing efficiency is improved. The ultrasonic thawing method can be used for ice breaking of ocean, rivers, roads, railways, bridges, electric power and telecommunication circuits, can also be used for defrosting of fast-freezing tunnels, subzero storages, refrigerators, and air conditioner condensers, is not only short in ice breaking time and high in efficiency, but also low in energy consumption and convenient in operation.

A bionic-tentacle-based robot autonomous navigation method is disclosed, according to the autonomous navigation method, a ''bionic tentacle'' model is disclosed from the point of view of bionics for understanding of sensor information, the autonomous navigation method comprises four walking behavior manners and six behavior trigger conditions, the walking behavior manners comprise aligned steering, straight advancing, avoiding and turning and arc circumvent, the behavior trigger conditions comprise alignment condition, yawing condition, meeting condition, avoiding condition, breaking-away condition and end condition, a bionic tentacle is used for perception of unknown environment around for real-time stimulation and triggering of a corresponding walking behavior, the whole process is designed based on bionics, the bionic-tentacle-based robot autonomous navigation method is suitable for a determined-target-point autonomous navigation task for a robot in unknown environment, can ignore obstacle edge shape restrictions, and is well adaptable to complex obstacle situations.

The invention relates to a binding material, in particular to an automobile sound deadening film which is used on metal plates for locally reinforcing the metal plates and particularly on automobile doors to reduce noises generated by the vibration of a running automobile. The automobile sound deadening film is prepared by mixing and extruding 10-25 percent of synthetic rubber, 5-15 percent of thermoplastic resin, 5-20 percent of thickening resin, 10-25 percent of plasticizing agent, 25-50 percent of vibration damping and sound deadening agent, 10-20 percent of oil absorbing and filling agent and 5-10 percent of reinforcing filling material. The automobile sound deadening film can be used for the large-area sound deadening and vibration damping of the metal plates during the automobile manufacturing process. When being used, the automobile sound deadening film can be operated by hands, is innoxious and odorless, is easy to separate from release paper, has good manufacturability, can not shift after being pasted, is less susceptible to oil washing, phosphating process, electrophoresis, paint spraying and drying, and other subsequent automobile body manufacturing processes and is convenient to use.

The invention relates to a split heads for binding reinforcing steel bars in building engineering, in particular to a height-adjustable recyclable reinforcing steel bar split heads. The height-adjustable recyclable reinforcing steel bar split heads comprises a lifting hook, a lifting mechanism and a bracket. The bracket comprises a tray with a central through hole, and three supporting legs which are distributed in a triangular shape are hinged to the lower portion of the tray. The lifting mechanism is a lead screw lifting mechanism, a screw of the lead screw lifting mechanism is sleeved by a handle sleeve integrally and fixedly connected with a nut, the screw is inserted into the central through hole of the tray to enable the lead screw lifting mechanism to be wholly assembled on the bracket, and the lifting hook for lifting reinforcing steel bars is welded at the lower end of the screw. The height-adjustable recyclable reinforcing steel bar split heads enables reinforcing steel bar meshes to be adjusted continuously and is light and convenient to adjust. Angles of the supporting legs can be adjusted to enable the split heads to be placed at will. The height of the lifting hook and the angles can be reduced and changed at will to enable the lifting hook and the supporting legs to be conveniently pulled out of concrete. After the concrete is poured, the split heads is easy to dismount. The split heads can be manufactured by using corner waste materials in construction sites, so that the materials are convenient to obtain. The split heads saves materials and is simple to manufacture.

The invention discloses boilproof alumen-free sheet jellies and a processing method thereof. The boilproof alumen-free sheet jellies comprise the raw materials of starch, oxidized starch, sodium alginate, sodium dihydrogen phosphate, disodium hydrogen phosphate, sodium carbonate, salt and water. The boilproof alumen-free sheet jellies have the advantages that: the oxidized modified starch is applied to the process for preparing the sheet jellies for the first time; the paste liquid of the oxidized starch is transparent; the paste strip is short; and gelatinous property and film-forming property are high. The oxidized starch has a coordinated compatible and complementary action with the sodium alginate, the sodium dihydrogen phosphate, the disodium hydrogen phosphate, the sodium carbonate and the salt to form a good network structure. Therefore, the prepared sheet jellies have the characteristics of good mouthfeel, boiling resistance, no turbid soup, no broken strips and high transparency. The used oxidized starch has the advantages of simple preparation, eating safety and low cost.

The invention relates to the light reflection material technology field and provides a micron order prism pyramid monomer and a manufacturing method thereof. The prism pyramid is capable of accommodating both the light flashing and light reflecting effects, and can exist independently without being attached to a carrier film. Only with adhesive glue, oil painting, hair glue and nail polishing oil and other colorless or colored transparent fluid or liquid media, it is possible to let the prism pyramid monomer to be attached on objects such as films, cloth, wires and plates requiring to be added with light or to realize light flash so that these materials can present the lighting effect. The monomer can be applied widely in great practical use, and the manufacturing method for the monomer is also simple and easy to implement. Therefore, with the method, batched monomer can be produced and used.

A high-safety injector with withdrawn needle is disclosed. The elastic supporting jaws with external convex step and supporting legs with flange at lower end are formed at lower end of elastic needle holder. The injection tube with internal slot matched with said convex step of supporting jaw. A supporting seat has the external convex step is contact with said supporting jaws, the internal upper flange matched with the flange of said supporting leg, and the lower supporting arm with elastic ratchets and close to said supporting leg. The fastening core has a conic table matched with said elastic ratchets.

The invention relates to the field of cable winding plates, in particular to a cable winding plate of manual multiple-linked fast cable coiling and uncoiling, comprising cable winding plates, a bracket, a rotation shaft and a rotation handle. The cable winding plate of manual multiple-linked fast cable coiling and uncoiling is characterized in that: one pair or more pairs of cable winding plates are provided; a manual clutches is arranged between a pair of the cable winding plates; the cable winding plates are connected with the rotation shaft by a ball bearing; cable separating baffles are arranged in the middle of the cable winding plates; middle parts of the cables are connected with the cable separating baffles; both ends of the cables are respectively arranged at both sides of the cable separating baffles; and when the rotation handle is rotated to one side, both ends of the cables are coiled or uncoiled at the same time. Compared with the prior art, the cable winding plate of manual multiple-linked fast cable coiling and uncoiling has the beneficial effects of that the cable coiling plate is suitable for occasions where a plurality of cables are needed to be used at the same time in production, such as site test of a large-scale project, temporary power supply, temporary multiple-cable fast cable arrangement of site monitoring and control of large-scale military equipment, and the like due to that a plurality of pairs of the cable winding plates are arranged on one rotation shaft so that selective coiling and uncoiling of a plurality of the cables can be realized, and the switching use modes of double link and multiple link can be conveniently realized by the manual clutch.

The invention belongs to the technical field of material surface engineering, and in particular relates to an organic silicon gel anti-ice-covering coating, and a preparation method and application of the organic silicon gel anti-ice-covering coating. The low-ice-adhesion organic silicon gel anti-ice-covering coating consists of crosslinkable polysiloxane, a crosslinking agent, a catalyst, a promoter, non-volatile hydrophobic liquid and an inorganic material. The preparation method comprises the following steps: performing mixing and uniform ball-milling on polysiloxane, the crosslinking agent, the catalyst, the promoter, the non-volatile hydrophobic liquid and the inorganic material, then coating on a base material, and curing to obtain an anti-ice-covering coating, wherein crosslinkable polysiloxane, the crosslinking agent, the catalyst and the promoter form an organic silicon rubber network by virtue of reaction, and the non-volatile hydrophobic liquid is effectively fixed in the anti-ice-covering coating; gel formed by the non-volatile hydrophobic liquid and the crosslinkable organic silicon rubber network is a main anti-icing functional layer which can delay the surface icing of water and reduce the binding force between an ice layer and a substrate material so as to ensure that the coating surface achieves an anti-ice-covering effect, and the mechanical performance of the anti-ice-covering coating also can be effectively improved.

The present invention provides a preparing method of a human hepatic progenitor cell which is amplified and cultivated in vitro, including: a. separating the human hepatic progenitor cell; b. co-cultivating a feeder cell and the human hepatic progenitor cell separated from the step a by a medium having no serum on an extracellular matrix containing human fibrin sealant or other analogues, obtaining a human hepatic progenitor cell colony by amplification. The human hepatic progenitor cell colony is easy to separate from the surface of human fibrin sealant by the simple gelatinolytic band process, purified or / and subcultured by further single cell preparation technology process such as enzymatic degradation etc. The human hepatic progenitor cell prepared by the method is hepatic progenitor cell treatment, including a cell transplantation and a bioartificial liver support system, providing excellent human hepatocyte source for cytotoxicity test platform in the drug screening, virus infection and drug screening platform etc.

The present invention discloses polishing liquid for grinding and polishing optical lithium niobate wafer. The polishing liquid consists of silica sol 30-90 vol%, organic amine alkali 1-10 vol%, inorganic alkali 1-5 vol%, activator 0.5-5 vol%, chelating agent FA / O 0.5-5 vol%, and deionized water for the rest. Under CMP and high pH condition, lithium is formed into stable complex and water soluble niobate to raise polishing efficiency and surface quality. The present invention has organic alkali and lithium niobate surface matter to form soluble amine salt easy to separate from the reaction surface, and this avoids the increase in the abrasive granularity and polishing liquid viscosity to ensure no scoring, high flatness and no adsorbate.

The invention discloses a low-volatile silicone rubber compound. The low-volatile silicone rubber compound is characterized by comprising the following raw materials in part by weight: 100 parts of raw silicone rubber, 20-70 parts of white carbon black, 1-12 parts of hydroxy silicone oil, 1-10 parts of ethylhydroxy silicone oil, 0.5-8 parts of hydrogen-containing silicone oil and 0.1-1.5 parts of release agent. The invention also discloses a preparation method of the low-volatile silicone rubber compound. The invention has the advantages that: the hydroxy silicone oil and the ethylhydroxy silicone oil are mixed as a structure control agent, so that after vulcanization of the rubber compound, the content of volatiles is low and physical properties are fundamentally changed; and the prepared silicone rubber compound is low in volatile content, good in processing performance and environment-friendly, has better tearing strength on the premise of ensuring good other physical and mechanical properties, and meets requirements of some special products.

The invention discloses a heat-exchange tube and belongs to the field of heat enhancement of heat transfer and energy saving. The heat-exchange tube comprises a tube body and a helical fin group, wherein the helical fin is formed by a first helical fin, a second helical fin and a third helical fin, first grooves are formed on the upper portion of the first helical fin, helical fin top portions among the first grooves form first T-shaped fin platforms; second grooves are formed on the upper portion of the second helical fin, helical fin top portions among the second grooves form second T-shaped fin platforms; third grooves are formed on the upper portion of the third helical fin, and helical fin top portions among the third grooves form third T-shaped fin platforms. The heat-exchange tube is characterized a first distance between the top surfaces of the first T-shaped fin platforms and a fin root portion of the first helical fin is smaller than a second distance between the top surfaces of the second T-shaped fin platforms and a fin root portion of the second helical fin, the second distance is smaller than a third distance between the top surfaces of the third T-shaped fin platforms and a fin root portion of the third helical fin, and find grooves are formed in the spaces between the first helical fin and the second helical fin, the second helical fin and the third helical fin, and between the third helical fin and the first helical fin. By the aid of the heat-exchange tube, heat exchange efficiency for falling film evaporation is improved.

The invention discloses a preparation method of a gecko structure simulating adhesive and relates to a preparation method of a gecko foot simulating microarray. The preparation method of the gecko structure simulating adhesive, disclosed by the invention comprises the following steps of: (1) preparing a porous metal film by using a hydrogen bubble template method; (2) mixing a high polymer with a cross-linking agent, vacuumizing, pouring the mixed liquor on a template of the porous metal plate for curing; and (3) removing a base and the porous metal template by using chemical and electrochemical methods. The preparation method disclosed by the invention is easy to operate and needs no complex instruments; experiment parameters are controllable; and a prepared gecko foot simulating microarray structure has very high adsorption capacity, also can be easily separated from the absorptive surface and simultaneously has super-hydrophobicity and self-cleaning capability. For the gecko foot simulating microarray prepared by using the hydrogen bubble template method and taking porous metal as a template, the area is 0.1-5 square centimeters, the diameter is 0.5-100 micrometers, the height is 0.5-20 micrometers, the elasticity modulus of a material is 1-15GPa, and the shear strength is 1-150kPa.

The invention relates to a cooking-resistant polyvinylidene chloride coating film and a preparation method thereof. The cooking-resistant polyvinylidene chloride coating film comprises a substrate and a coating layer on the surface of the substrate, wherein a primer layer is formed between the coating layer and the substrate; the coating layer is a modified polyvinylidene chloride coating which is formed by coating a cooking-resistant polyvinylidene chloride emulsion on the surface of the primer layer and drying; the cooking-resistant polyvinylidene chloride coating film is prepared from the following raw materials in parts by weight: 25-95 parts of polyvinylidene chloride blending emulsion, 0-70 parts of softened water, 0-15 parts of slip agent and 0.1-5 parts of adhesive; and the polyvinylidene chloride blending emulsion is prepared form the following raw materials in parts by weight: 88-98.5 parts of polyvinylidene chloride emulsion and 1.5-12 parts of tetraethylenepentamine. The coating film has the advantages of cooking resistance, transparency, environment friendliness, safety, innocuity and low cost and can be used for packaging foods directly through compounding; the foods and a packaging bag are cooked together and subjected to high-temperature disinfection, and a customer can directly eat after opening the packaging bag.

The invention discloses an aluminum honeycomb type evaporation plate and a processing molding method thereof. The evaporation plate adopts a high strength aluminum alloy plate and consists of an upper plate, a lower plate, an inlet pipe and an outlet pipe, wherein the two high strength aluminum alloy plates are overlapped and welded together by a solid-phase stir friction connecting method; the inlet pipe and the outlet pipe are inserted in the upper end and the lower end between the two high strength aluminum alloy plates and are connected with the high strength aluminum alloy evaporation plate body by using an electric arc welding method; and then the evaporation plate is finally molded through a mould and high-pressure bulging technology.

The invention discloses a stainless steel snakelike flow channel cold plate and a processing molding method thereof. The snakelike flow channel cold plate adopts a stainless steel plate and consists of a stainless steel upper plate, a stainless steel lower plate, an inlet pipe and an outlet pipe, wherein the two stainless steel plates are overlapped and connected by a water-cooling resistance welding method; the inlet pipe and the outlet pipe are inserted in the upper end and the lower end between the two stainless steel plates and are connected with the stainless steel snakelike flow channel cold plate by using an electric arc welding method; and then the snakelike flow channel cold plate is finally molded through a mould and high-pressure bulging technology.