455results about How to "Wide range of options" patented technology

The invention discloses a packaging base plate of flip chip ball grid array integrated circuit and the making process. The base plate comprises enhanced metal core layer, insulating medium layer, conductive layer of the ball grid array base plate solder ball connection pattern and the lead pattern anti soldering layer and the back enhancing metal copper plate. Form a hollow in the back enhancing metal copper plate of the base plate and set chips. Coating insulating medium on the enhancing metal copper plate and forming the circuit, getting the final required structure by the special line connection structure and the special process of one-way gradually add layers.

The invention discloses a polyimide powder composite material for 3D printing which includes a powder material and an adhesive. The powder material comprises, by weight, 100 parts of polyimide molding powder, 0.5-1 part of a thermal stabilizer and 5-10 parts of a reinforcing agent. The adhesive comprises, by weight, 60-80 parts of main sticky material, 5-20 parts of a pigment, 5-20 parts of filler, 2-10 parts of a flexibilizer, 0.5-1.5 part of a levelling agent and 1-10 parts of a pigment-and-filler dispersing and wetting agent. The powder composite material is used in a manner of matching 1 part by weight of the powder material with 0.1-0.5 parts by weight of the adhesive. The powder composite material broadens a selectable range of present 3D printing materials. The high-performance polyimide molding powder is used as a powder layer of 3D printing and a liquid adhesive is sprayed onto the powder layer to produce a product in a layer-by-layer bonding manner. With addition of the pigment to the adhesive, a full-color prototype product can be produced and a color model can express more useful information. A polyimide product, which is produced through a powder-adhesive 3D printing technology, is excellent in high temperature resistance performance and is high in mechanical strength.

The invention discloses a rapid manufacturing method for sprayed and cured molding sand. The rapid manufacturing method is characterized by comprising the following steps: molding sand is mixed with a curing agent in advance, and diluted resin is sprayed onto the molding sand mixed with the curing agent through a spray; through powder layering and resin spraying, the molding sand with sprayed resin is cured, and then adhesive forming is realized; the formed layers are heated for drying; the entity of a casting mold is formed through layer-by-layer printing, stacking and curing, and then the strength of the casting mold is improved through further drying. Through adoption of the rapid manufacturing method, the problem that the amount of gas evolution of the casting mold is overlarge can be solved through reduction of the resin consumption, the spray is protected from blockage, the curing speed is increased, the assembly quality of the casting mold and a mold core is improved, and finally the casting mold with relatively high strength is obtained.

The invention relates to an aqueous capsule for cigarette and a preparation method of the aqueous capsule. The aqueous capsule for cigarette consists of a capsule wall material and water-soluble core liquid, wherein the water-soluble core liquid is positioned inside the capsule wall material; the strength of the capsule wall material is 0.5-2.2kg; the density of the capsule wall material is 1.0-1.3g / cm<3>; and the density of the water-soluble core liquid is 0.9-1.3g / cm<3>. The aqueous capsule is simple in dripping method process, low in cost, uniform in particle size of a finished capsule product, wide in core liquid solvent optional range, stable in core liquid sealing, high in yield, green and environment-friendly in raw material and whole process procedure, safe and reliable, and applicable to industrial popularization.

The invention discloses a device for measuring dynamic change of friction static electricity and friction property of an insulating material. An electrostatic potential sensing head (1) of a vibration capacitance type electrometer (4) is horizontally placed on a friction abrasion test machine (27) which rotates horizontally, so as to monitor the dynamic change of the friction electrostatic potential of a working surface of a sample (18) to be tested, and lay a signal into a computer; a friction sensor (12) is connected in the tangential direction of a loading sleeve rod (11), and is used for inputting an obtained friction signal of the sample (18) to be tested into the computer through a friction transmission line (13); the temperature change of the working surface of the sample (18) to be tested can be monitored; a glass sealing shade (37) is installed on a base disc (35) through a sealing groove (36); and the sealing groove (36) ensures that the good air tightness between the glass shade (37) and the base disc (35) is achieved. A test platform for accurate measurement is provided for revealing the principle of electrification by friction and analyzing the influencing factor of the friction electrostatic potential of the insulating material.

The invention discloses a low-melt-viscosity thermoplastic polyimide material which is used for 3D printing. Molecular structure of the thermoplastic polyimide material is subjected to a modification process (such as introducing a special flexibility structure unit, a large side group or solvophilic group, a twisted and non-coplaner structure, characteristic atoms such as a heterocycle and a fluorine silicon and the like, and carrying out a main chain copolymerization reaction) to enable the polyimide material to be meltable and thus to have good processability a well processing performance. The polyimide material, after being mixed with a heat stabilizer and a reinforcing agent, is manufactured into a high-performance polyimide product in a manner of melting 3D printing technology. The polyimide material widens a selectable range of present 3D printing materials. With the high-performance and low-melt-viscosity thermoplastic polyimide as a 3D printing material, the high-performance polyimide product prepared from the polyimide material has excellent high temperature resistance performance, corrosion resistance performance and mechanical strength.

The invention discloses a micro disperse pump which comprises a pump chamber, a one-way valve, a pump inlet, a pump outlet and a driving device inside the pump chamber; wherein, the one-way valve is between the pump chamber and the pump inlet, and between the pump chamber and the pump outlet; the one-way valve is a wedge disperse tube with different positive and passive fluxes; the fluid of pump chamber can be expanded and contracted to generate pressure difference, and according to the different pressures of positive and passive fluxes in the wedge disperse tube, to generate one-way continuous fluid transmission. The inventive micro disperse pump can drive fluid via adsorbing fluid or directly drive fluid. The production is based on silicon micro-mechanical processing technique and micro-mould technique, with simple process, lower cost, high reliability and the application for integrating other micro-fluid systems. It has wider application in the micro-fluid control analysis chip.

A piezoelectric electret material comprises a composite membrane and an electrode, wherein the composite membrane comprises a polymer layer and an elastic deformation layer which are stacked sequentially; the polymer layer is made of an electret material and used for storing charge; and the elastic deformation layer is made of an elastic material. The electrode is made of a conductive material and comprises a first electrode and a second electrode formed on the two opposite sides of the composite membrane. When the piezoelectric electret material suffers an external mechanical action, the elastic deformation layer deforms, and the induced charge on the electrode is changed, so that an external circuit shows short-circuit current or open-circuit voltage, and the piezoelectric electret material has relatively good piezoelectric property. The piezoelectric electret material forms a closed hole structure without special treatment, so that the charge storage capacity in a piezoelectric electret is not limited. Simultaneously, the invention provides a preparation method of the piezoelectric electret material.

The invention provides a superhydrophobic coating spray for material and facility surface protection and preparation and use methods thereof. The superhydrophobic coating spray is low-viscosity liquid, and is prepared from nanometer structure and micrometer structure particles and hydrophobic substances through a chemical reaction; a layer of superhydrophobic film can be formed on the surface of a base material to be protected through a spray coating process; the film has a micrometer-nanometer composite dual structure similar to the surface of a lotus leaf; the contact angle with water is not smaller than 150 degrees; the rolling angle is smaller than 10 degrees; good hydrophobic performance is realized. The superhydrophobic coating spray provided by the invention has the advantages that the cost is low; the materials and the process achieve the environment-friendly effects; the manufacturing and the spray coating processes are simple and convenient; the limitation by the base material or the facility shape is avoided; the industrialization can be easily realized; the protection effect durability is good. The superhydrophobic coating spray can be widely applied to the hydrophobic protection of the material base material surfaces of concrete, metal, glass and the like, so that the excellent hydrophobic effect can be shown on the surface of the base material; meanwhile, the functions of self-cleaning pollution resistance, the anti-corrosion function, the ice and frost condensing inhibiting function and the like can also be realized.

The invention relates to an artificial lens with drug sustained release micro-capsules inlaid on a loop and a manufacturing method of the artificial lens. The artificial lens can suppress microbial infection and the like after a cataract surgery effectively. The manufacturing method is simple, mature and practical. The artificial lens with the drug sustained release micro-capsules inlaid on the loop is characterized in that at least one loop hole is formed in the loop, and the sustained release micro-capsules are inlaid in the loop holes. The manufacturing method comprises the following steps: 1) the loop holes are carved in the loop of the artificial lens, ultrasonic cleaning is conducted to the holes and the holes are reserved; 2) inner cores of the micro-capsules are prepared; 3) a plurality of layers of nanometer films are arranged on the inner surface layer of the inner core of each micro-capsule in a self-assembly mode; 4) the obtained micro-capsules are stored in cold, vacuum drying is conducted to the micro-capsules so that dry capsules without water are obtained; 5) the dry micro-capsules are inlaid in the loop holes of the artificial lens under a microscope, and therefore the artificial lens with the drug sustained release micro-capsules inlaid on the loop is manufactured; and then ethylene oxide sterilization and sealed package are conducted.

The invention discloses a system supporting VOIP and CS telephone, which comprises a terminal gateway equipment, a wireless broadband module, SLIC, SWITCH and a telephone set; the SLIC is used for bidirectional transmission of SPI and PCM line signal between the telephone set and the terminal gateway equipment; the SWITCH is used for transmitting VOIP voice code stream between the terminal gateway equipment and the SLIC, and establishing PCM line from the SLIC to the terminal gateway equipment or the wireless broadband module to transmit CS voice code stream; the terminal gateway equipment is used for communicating with the wireless broadband module to accomplish the voice signal transmission between infinite broadband network and the terminal gateway equipment; and the wireless broadband module is used for the network registration and connection of VOIP telephone and the establishing of CS telephone. The invention further discloses a method for supporting VOIP and CS telephone, By using the system and the method, user can enjoy different voice services according to different service scenes on one telephone set, and mobile service provider can dispose services according to different situations, improves increment capability, and saves communication cost.

The invention relates to a lithium ion battery cathode material and a preparation method thereof. The cathode material comprises a carbon-coated nano-metal oxide composite material, wherein a carbon-coated nano-metal oxide has a nuclear shell structure, grains are uniformly dispersed, the diameter range of the grains is 10-80nm, and the thickness of a carbon coating is 2.5-10nm. An electrode made of the cathode material has higher reversible capacity and excellent cyclical stability.

The invention relates to a drug sustained-release microsphere capable of being embedded in intraocular lens loop and a preparation method of the drug sustained-release microsphere. The drug sustained-release microsphere prepared by the provided method can be used for effectively preventing and treating microorganism infection and antagonistic inflammatory reaction after a cataract surgery, reducing the occurrence rate of intraocular inflammation infection after the cataract surgery, and preventing and inhibiting after-cataract, so as to improve visual quality after the surgery. The technical scheme is that according to the drug sustained-release microsphere capable of being embedded in the intraocular lens loop, the drug sustained-release microsphere is formed by mixing drugs and a carrier at the ratio of 1 to (10000-1), and the drug sustained-release microsphere is 100-800mm in diameter. The preparation method of the drug sustained-release microsphere capable of being embedded in the intraocular lens loop sequentially comprises the following steps: (1) mixing the drugs and the carrier according to the ratio and stirring to obtain mixed liquid; (2) condensing fog-like materials in a collecting room to obtain microspheres; and (3) collecting the microspheres and screening the microspheres by virtue of a screen to obtain the microspheres with required diameters; disinfecting, sealing and packaging the microspheres.

The invention discloses a charcoal-coated metal fluoride nano material with a core-shell structure, a preparation method and application of the nano material in the field of lithium ion battery positive electrodes. The nano material is of a core-shell structure; the shell layer is charcoal; the core layer is metal fluoride; the nano material has high specific capacity and good cyclic stability by being taken as the positive electrode material of a lithium ion battery. The nano material with the core-shell structure can be prepared through the processes of mixing, pyrolysis and solvent washing of a raw material metal compound and a fluorine-containing compound, has the characteristics of abundant source of raw material, simple process, low material preparation cost, high purity, wide metal choice range and the like, and facilitates large-scale production.

The invention discloses a preparation method and application of a graphite phase carbon nitride nanosheet visible-light-induced photocatalyst synthesized by promotion of ionic liquid and belongs to the technical field of material preparation and photocatalysis. A graphite phase carbon nitride nanosheet material is formed by using room-temperature ionic liquid of urea and dialkyl imidazolium tetrafluoroborate as a precursor through high-temperature co-polymerization. The graphite phase carbon nitride prepared by the preparation method has a low-dimensional nanosheet layer microstructure and a suitable forbidden bandwidth and shows more efficient photocatalytic hydrogen production performance than that of conventional body phase carbon nitride under the visible light. The graphite phase carbon nitride nanosheet visible-light-induced photocatalyst synthesized by promotion of the ionic liquid is simple in synthetic process, is low in cost, has high photocatalytic efficiency, accords with the actual production requirement and has a wide application prospect in the field of photocatalysis.

A metal nano particle / carbon composite material is prepared from hydrocarbon compound and transition metal compound in a weight ratio of 1:(0.01-1) through proportional mixing, charring reaction at 400-550 deg.C in inert gas for 6 hr, and extracting by hot fusion. Said hydrocarbon compound may be paraffine, olefin, etc. Said transition metal compound may be cyclopentadienyl transition metal compound, carbonyl transition metal compound, etc. Its advantages are simple preparing process and high purity.

The invention discloses an emulsion multi-dimensional rapid preparation microfluidic device, and discloses a compound medicine microcarrier with a core-shell structure, and applications thereof. The compound medicine microcarrier with the core-shell structure is characterized by being prepared through taking W / O / W or O / W / O double emulsion as templates by adopting a microfluidic method, a core and a shell are respectively made of two degradable polymer materials with biocompatibility and are respectively hydrophilic and hydrophobic. The hydrophilic part can be loaded with various hydrophilic medicines, the hydrophobic part can be loaded with various hydrophobic medicines; along with the degradation of the core-shell material, the hydrophilic and hydrophobic drugs loaded internally can be sustainably released, and the purpose that the hydrophilic and hydrophobic medicines are simultaneously delivered and synergically slow-released can be achieved. In addition, the release rate of the medicine can be controlled by controlling the thickness of the shell layer. The microcapsule with the core-shell structure has the characteristics that the preparation method is low in cost, easy to operate and convenient to produce on large scale, and the like, the prepared medicine microcarrier has good biocompatibility, is high in medicine encapsulation rate, and good in controllability.

The invention discloses a preparation method of modified silicon dioxide obtained via super-hydrophobic modification. The preparation method comprises following steps: 1) a raw material A (a silicon dioxide base material, dry powder) is delivered into a mixer, a mixed state is maintained, a raw material C (a super-hydrophobic modification accessory ingredient prepared via mixing of 1.5% acetic acid aqueous solution and isopropanol at a mass ratio of 1-3:4-10) is atomized, and is sprayed into the mixed uniformly, and stirring is kept; 2) a raw material B (a hydrophobic modification agent organic silane coupling agent) is atomized, and is sprayed into the mixer uniformly, and stirring is kept; 3) aging is carried out; and 4) ultrafine grinding is carried out so as to obtain a finished product. Fewer processing steps are needed; energy consumption is low; requirements of industrialized large-scale production can be satisfied; particle size distribution of the modified silicon dioxide obtained via super-hydrophobic modification is uniform; pore structures are stable; and hydrophobic performance is stable. The prepared super-hydrophobic silicon dioxide prepared via the preparation method is taken as a flatting agent, and can be used for providing paint with super hydrophobic performance; film forming coating particle arrangement is uniform; and luster is soft.

The invention relates to a liquid lens array capable of discretely zooming and a method for manufacturing the same. The method comprises the following steps: coating a layer of transparent conducting film serving as a first electrode on a glass substrate of the lens array and discretely distributing the transparent conducting film in a form of mesh openings with pins through photo-etching; coating a layer of hydrophobic insulating medium on the glass substrate and forming mesh opening distribution corresponding to the shape of the first electrode so as to expose the first electrode below the insulating medium; injecting nonvolatile insulating liquid into the openings, depositing a layer of transparent Parylene elastic membrane on the liquid and encapsulating the liquid in an enclosed space; and coating a layer of transparent conducting membrane serving as a second electrode on the Parylene membrane. The liquid lens array has the characteristics of compact structure, wide zooming range, high efficiency, wide selection range of filled liquid, electric control, easy array manufacturing, capability of making each lens unit in the array discretely zoom, simple manufacturing method and high efficiency. The device is widely used in the aspects of high-resolution, large visual field, high field depth, three-dimensional imaging and the like.

The invention discloses a method for improving the sugar utilization rate of clostridium acetobutylicum in fermentation of mixed sugar. The method comprises the following steps of: performing gene engineering modification on clostridium acetobutylicum, so that compared with wild type clostridium acetobutylicum, the clostridium acetobutylicum has the advantages that expression of g1cG gene can be inhibited, and the expression and activity of xylose transportprotein, xylose isomerase, and / or xylulokinase can be improved; and applying the obtained clostridium acetobutylicum which is subjected to gene engineering to fermentation of sugar. By the method, more xylose and arabinose can be used by clostridium acetobutylicum in the fermentation of the mixed sugar, a solvent product with high concentration can be produced, and the product yield can be improved; and the method has excellent industrial application prospect.

The invention discloses a preparation method of a high thermal conductivity aluminum matrix composite. The preparation method comprises the following steps of: adopting carbon nano tubes and aluminum alloy powder as ground mass, taking the carbon nano tube in percentage by weight; adding alcohol and surface dispersant to the carbon nano tubes, and treating by ultrasonic wave to obtain carbon nano liquid; baking the carbon nano liquid, then adding the aluminum alloy powder for ball-milling, stirring at high speed in a stirrer, and dispersing and uniformly distributing the carbon nano tubes in the aluminum alloy powder body to obtain a powdery material; slightly pressing the powdery material in a mould, and adopting a magnetic orientation method for compression molding forming to obtain a semi-finished product; low-temperature sintering the semi-finished product, high-temperature sintering the semi-finished product, wherein inert gas is adopted for protection during sintering; and reducing the temperature of the inside of the furnace to room temperature to obtain a finished product. The magnetic orientation method not only is simple but also enables the aluminum matrix composite or the aluminum alloy matrix composite to internally acquire oriented carbon nano tubes, and induces the carbon nano tubes to distribute axially as much as possible. The invention can highlight the extremely unique and anisotropic micro structural characteristic of the carbon nano tubes.

Production of polymer base carbon ball is carried out by taking polymer micro-sphere resin containing halogen element with 100nm-100ª–m as raw material, alkalizing treating, oxidizing treating, carbonizing treating, graphite treating and obtaining polymer base carbon micro-sphere with 100nm-100ª–m grain size; taking polymer micro-sphere resin containing halogen element < 100nm, alkalizing treating, oxidizing treating, graphite treating and obtaining polymer base carbon micro-sphere with grain size <100nm. Alkalizing treating is carried out by agitating polymer micro-sphere and alkaline solvent under 60-280deg.C for 6-72hrs, drying and obtaining presoma. Oxidizing temperature is 180-240deg.C, and oxidizing time is 1-3hrs. It achieves simple process, low cost, and high purity.

The preparation process of porous oxide molecular sieve with plant template includes the following steps: soaking the selected plant material powder in ammonia water for 1-24 hr to deglue and drying; soaking the plant material powder in the water solution of strong acid salt of metal for 1-24 hr to pre-treat and drying; high temperature treating the plant material powder in oxidation atmosphere at 200-1200 deg.c for 1-10 hr at the temperature raising speed of 1-20 deg.c / min to obtain the porous oxide molecular sieve. The porous oxide molecular sieve MxOy has pore diameter in 2-50 nm, where, M is one of Ni, Fe, Co, Zn, Al and other seven kinds one metal, x is 1, 2 or 3, and y is 1, 2, 3 or 4. The present invention has the features of low cost, wide material source and simple technological process.

Disclosed are a sinking-floating control device and a multi-working-condition sea cucumber search fishing device capable of sinking and floating. The multi-working-condition sea cucumber search fishing device capable of sinking and floating comprises open type buoys, a high pressure gas cylinder, control valves, a chassis framework, electric wheels, a driven wheel, a steering vertical shaft, a tail vane, a propeller, motors, a mechanical arm, a suction tube, a camera, warehouse and an umbilical cable. The top of each buoy is provided with the normally closed type control valve, and the bottom of the buoy is provided with a normally open opening; the high pressure gas cylinder is connected with a tee joint, one opening of the tee joint is normally closed, the other opening of the tee joint is firstly connected with the normally closed type control valve and then is connected with a high pressure air duct continuously; the other end of the high pressure air duct is communicated with the corresponding buoy. Every motor and the camera are all connected with the umbilical cable through wires. The suction tube is attached to the mechanical arm, and the front end of the mechanical arm is provided with the camera and a clamp. The multi-working-condition sea cucumber search fishing device capable of sinking and floating is multifunctional and has strong environmental suitability, can achieve the floating movement, searching and fishing by sinking to the bottom, and sea floor travelling of the fishing device; can adapt to multiple seabed environments of mud, sand, reef, rock and the like, and can suck and catching sea floor objects such as sea cucumbers quickly, stably and accurately both in still water and running water.

The present invention provides preparation and application methods of a carbon fiber mat surface antioxidation coating; after chemical modification of matrix resin by use of an inorganic acid salt, the matrix resin is used as a precursor for blending with inorganic powder, and then coats the surface of a carbon fiber mat thermal insulation material by a brush, and then a high temperature coating with antioxidation and thermal erosion resistance is prepared by curing, carbonization, high temperature and other processes. The raw materials are easy to get, the optional range is wide, the preparation process is simple, the cost is low, the prepared coating structure reduces the specific surface area of the carbon fiber mat thermal insulation material, and further suppresses the aerobic oxidation phenomenon of the carbon fiber mat thermal insulation material at a low temperature, in the environment of high temperature and inert atmosphere, the material surface has a certain of thermal erosion resistance, the service life and long-acting thermal insulation ability of a carbon fiber mat can be prolonged, in addition, the slag-off phenomenon of the coated carbon fiber mat in the use process is suppressed, and the application scope of the carbon fiber mate is broaden.

The invention discloses a method and a device for adjusting page layout, belonging to the field of information processing. The method comprises the steps of: detecting dragging action; determining a mobile object to be dragged, storing original information of the mobile object; and filling vacancy in an inverse dragged direction of the mobile direction according to the dragging amplitude, and displaying corresponding original information after filling the vacancy. The device comprises a detection module, a storage module, a filling module and a display module. Under the condition of not increasing the hardware cost, by detecting the dragging action and filling the vacancy at the inverse dragged direction of the mobile object, the invention realizes the adjustment of the page layout, and has the advantages of avoiding the problem of difficultly selecting a boundary point and improving the operation accuracy of the boundary point.

The invention relates to a furniture choosing method based on a database. The furniture choosing method is characterized by referring to the data base and a software front desk interface at least, the database is used for modeling existing furniture of different brands and different styles and building different light effect models of the furniture, the software front desk interface is used for modeling rooms where furniture is to be arranged and displaying result images according to different furniture and light effect. According to the furniture choosing method, proper furniture can be conveniently chosen from furniture in the type-in furniture database through an intuitive three-dimensional display method on the software platform based on the database according to conditions, like the size and the orientation, of a house to be spruced up.

The invention provides a carbon-silicon composite material and a preparation method and application thereof. The preparation method includes following steps: dispersing a silicon nanomaterial, a carbon nanomaterial and a binder into a solvent to form size, and preparing to obtain carbon-silicon composite macro body; thermally treating the obtained carbon-silicon composite macro body in a non-oxidative atmosphere to obtain the carbon-silicon composite material. The carbon-silicon composite material has a covalent carbon grid structure, and the silicon nanomaterial is embedded in the covalent carbon grid structure, so that the carbon-silicon composite material integrates advantages of the covalent carbon grid structure composed of the silicon nanomaterial, carbon converted by part of the binder and the carbon nanomaterial, mechanical performance and electron transmission stability of the composite material are improved, and the composite material presents extremely excellent charging-discharging specific capacity and circulating stability when serving as a lithium ion battery electrode and has good industrial application prospect.