56results about How to "To achieve directed transmission" patented technology

The invention relates to a method for preparing a textile fiber / graphene / Bi2WO6 composite environmental catalytic material. The method comprises the steps: dipping textile fibers into a saturated dispersion solution of graphene oxide, then, carrying out baking, carrying out washing, then, putting the textile fibers into a reducer solution, carrying out a reaction for 0.5 to 1 hour at the temperature of 50 DEG C to 80 DEG C, carrying out washing, and carrying out baking, so as to obtain textile fiber / graphene; and adding the textile fiber / graphene into a solution of Bi(NO3)3 and Na3PO4, carrying out stirring, then, adding Na2WO4 and urea into the solution, carrying out a hydrothermal reaction for 3 to 8 hours at the temperature of 120 DEG C to 180 DEG C, carrying out cooling, then, carrying out washing, and carrying out baking, thereby obtaining the textile fiber / graphene / Bi2WO6 composite environmental catalytic material. The method disclosed by the invention is simple and is adaptable to industrial production; and the obtained composite material has a relatively good environment purification effect.

The invention provides a graphene foam and a preparation method thereof, and a graphene carbon composite material and a preparation method thereof. The graphene carbon composite material comprises graphene and a carbon material filled between the layers of graphene. According to the invention, the graphene carbon composite material with different heat conduction properties can be set according todifferent content of graphene and carbon. The graphene carbon composite material provided by the invention has very high heat conduction performance along a targeted direction.

The invention relates to a fiber / CNT(carbon nano tube) / TiO2 three-dimensional recyclable efficient catalytic material, as well as preparation and application thereof. A three-dimensional continuous structure is constructed on the surface of textile fiber by CNTs, and surfaces of the CNTs are loaded with nano TiO2. Preparation comprises: soaking fiber in a dispersion liquid containing CNT compound TiO2 and polyethylene glycol 2000, lasting reaction for 2-4 h at 60-80 DEG C, drying, washing with water, repeating processes of soaking, drying and washing with water for 3-5 times, and obtaining the material. The fiber / CNT / TiO2 three-dimensional recyclable efficient catalytic material is low in cost, the preparation method is simple, requirements on equipment is are low, and the operability is good; a water treatment agent provided by the invention can remove high-concentration organic pollutants in water, is suitable for advanced treatment of various wastewater, protects the environment, avoids secondary pollution, and has the advantages of being antibacterial, removing odor, absorbing other heavy metal ions, and the like.

The invention discloses a preparation method for a large-area lead iodide thick film and implementation equipment thereof. According to the invention, in a vacuum cavity of the equipment, the raw material high purity lead iodide powder is spread on a raw material carrier graphite sheet, which is placed on a flat heater, a directional heat dissipation plate equipped with a substrate at the bottom is supported by a quartz block over the raw material, in an environment with a vacuum degree of 10<-1>Pa-10<-5>Pa, starting the flat heater to heat the raw material to gasify it, and the raw material gas condenses and deposits at the low temperature substrate, thus forming the dense lead iodide polycrystal film. With the method and equipment provided by the invention, the lead iodide polycrystal thick film with a thickness of 50-1000 micrometers, an area of 5*5cm<2>-50*50cm<2>, uniform thickness and excellent properties can be prepared on the substrate. Also, the preparation process is simple and low in cost, thus being suitable for industrial mass production.

The invention relates to a Janus type material with one-way water transport property as well as a preparation method and application of the Janus type material. According to the preparation method, abase material is soaked in an aqueous solution containing an acidic organic matter and a water-soluble ferric salt for modification treatment, polydimethylsiloxane is sprayed to one surface of the base material under the action of water protection, so that one surface of the prepared Janus material is super-hydrophilic, the other surface of the prepared Janus material is super-hydrophobic, and theJanus material shows an extremely asymmetric wettability; therefore, directional water transmission can be achieved in air or oil. The Janus type material can be applied to the fields of unidirectional moisture conduction or moisture absorption and sweat releasing fabrics, oil-water separation, water collection in oil and the like.

The invention provides a file transmission method, apparatus and system. The method is applied to a management and control server cluster and comprises the following steps: sending a file synchronization instruction, first identification information of a first business server and second identification information of a second business server to a first proxy server, and triggering the first proxy server to determine a file transmission type based on the first identification information and the second identification information and to release the file synchronization instruction to the first business server, so that the first business server transmits a to-be-synchronized file to a second proxy server through a preset protocol according to a transmission path corresponding to the file transmission type; sending a downloading instruction and the second identification information to the second proxy server, and triggering the second proxy server to release the downloading instruction to the second business server, so that the second business server downloads the to-be-synchronized file from the second proxy server through the preset protocol. By adoption of the file transmission method, apparatus and system provided by the invention, directional and accurate transmission of the to-be-synchronized file can be realized, and thus the flow and the bandwidth resources are effectively saved.

The invention discloses a photocatalyst, photocatalyst film and their preparation methods and application, wherein the photocatalyst includes a core, a middle layer and an outer layer; the core includes a first semiconductor material, the middle layer covers the outer periphery of the core and includes a piezoelectric material; the outer layer is supported on the outer periphery of the middle layer and includes a second semiconductor material and / or metal nanoparticles having surface plasma effect; the second semiconductor material and the first semiconductor material are the same or different. The photocatalyst is given directional transport of photo-induced carriers by: forming the piezoelectric material between the core including the first semiconductor and the outer layer including thesecond semiconductor and / or metal nanoparticles with surface plasma effect, and subjecting the piezoelectric material to optional polarization; photocatalytic disinfecting efficiency of the photocatalyst prepared herein is further improved.

The invention relates to the field of electrochemistry, in particular to a method for constructing a three-dimensional MXene array by using a liquid crystal MXene, and the three-dimensional MXene array. The method for constructing the three-dimensional MXene array by using the liquid crystal MXene comprises the steps of: etching a MAX phase material to obtain a MXene colloidal solution having goodconductivity; then adding a modifier capable of inducing the MXene to form a three-dimensional network structure into the MXene colloidal solution, and evenly mixing the mixture to obtain a modifiedMxene liquid crystal solution; then evenly coating the surface of a silicon wafer having surface hydrophilicity coated with the Mxene colloidal solution to obtain a layer of MXene film; and placing two silicon wafers oppositely in the modified Mxene liquid crystal solution, and performing rapid cooling under the action of an externally applied electric field. The process is simple, the reaction iseach to control. The arrays in the prepared three-dimensional MXene array have good orientation and are arranged neatly.

The invention relates to a method for preparing a textile fiber / graphene / BiVO4 / BiPO4 composite environmental catalytic material. The method comprises the steps: dipping textile fibers into a saturated dispersion solution of graphene oxide, then, carrying out baking, carrying out washing, then, putting the washed textile fibers into a reducer solution, carrying out a reaction for 0.5 to 1 hour at the temperature of 50 DEG C to 80 DEG C, carrying out washing, and carrying out baking, so as to obtain textile fiber / graphene; and adding the textile fiber / graphene into a solution of Bi(NO3)3 and Na3PO4, carrying out stirring, then, adding NaVO3, NaH2PO4 and urea, carrying out a hydrothermal reaction for 3 to 8 hours at the temperature of 120 DEG C to 180 DEG C, carrying out cooling, then, carrying out washing, and carrying out baking, thereby obtaining the textile fiber / graphene / BiVO4 / BiPO4 composite environmental catalytic material. The method disclosed by the invention is simple and is adaptable to industrial production; and the obtained composite material has a relatively good environment purification effect.

The invention relates to a preparation method for a textile fiber / graphene / Ag3PO4 composite environment catalysis material. The preparation method comprises the following steps: dipping textile fibers in a saturated solution of graphene oxide, then drying the textile fibers, cleaning the textile fibers, placing the textile fibers in a solution of a reducing agent, carrying out a reaction at 50 to 80 DEG C for 0.5 to 1 h and then successively carrying out cleaning and drying so as to obtain textile fiber / graphene; and adding the textile fiber / graphene into a AgNO3 solution, carrying out stirring, then adding Na3PO4 and urea, carrying out a hydrothermal reaction at 120 to 180 DEG C for 3 to 8 h and successively carrying out cooling, cleaning and drying so as to obtain the textile fiber / graphene / Ag3PO4 composite environment catalysis material. The preparation method provided by the invention is simple and is suitable for industrial production; and the obtained textile fiber / graphene / Ag3PO4 composite environment catalysis material has good environment purifying effect.

The invention relates to a preparation method of a textile fiber / graphene / NaTaO3 composite environmental catalytic material. The preparation method comprises the steps of dipping textile fibers into saturated dispersing liquid of graphene oxide, then conducting drying and cleaning, then placing the textile fibers into a reducing agent solution, conducting a reaction for 0.5-1 hour at the temperature of 0-80 DEG C, and conducting cleaning and drying, so that textile fiber / graphene is obtained; adding the textile fiber / graphene into a solution containing Ta2O5 and Na3PO4, conducting stirring, then NaOH and urea, conducting a hydrothermal reaction for 3-8 hours at the temperature of 120-180 DEG C, and after the materials are cooled, conducting washing and drying, so that the textile fiber / graphene / NaTaO3 composite environmental catalytic material is obtained. The method is simple and suitable for industrialized production; the obtained composite material has a good environment purification effect.

The invention relates to a jet flow rotor gyroscope based on an expansion-shrinkage pipe micropump, which belongs to the field of inertia measurement. The detection cavity of the jet flow rotor gyroscope is respectively communicated with a corresponding vibration cavity by a corresponding air outlet; each air outlet is radially staggered; the air outlet is a taper-shaped channel; the small end of the air outlet is connected with the detection cavity; the big end of the air outlet is connected with the vibration cavity; meanwhile, the vibration cavity is communicated with outside by a taper-shaped air inlet; a small taper-shaped end is connected with the outside; and a big end is connected with the vibration cavity. According to the jet flow rotor gyroscope based on the expansion-shrinkage pipe micropump, which is disclosed by the invention, the characteristics of synthetic jet flow are fully utilized, the directed transmission and the unidirectional flow of air, i.e. transmission and flow from the air inlet to the air outlet as well as from the vibration cavity to the detection cavity, are realized by different resistances on an airflow on the air inlet and the air outlet. The jet flow rotor gyroscope is communicated with outside via air vents so as to solve air temperature rise caused by piezoelectric sheet vibration and improve the precision of the jet flow rotor gyroscope. When the vibration phase difference of the vibration cavities is zero, a generated airflow rotor shaft has a better consistency with a shell shaft.

The invention relates to a method for preparing an intelligent liquid conveying control line. 0.01D-100D monofilament fiber bundles, multifilament fiber bundles, yarn or fiber bundles combining the monofilament fiber bundles, the multifilament fiber bundles and the yarn are selected, two or more monofilaments of the fiber bundles are woven together or twisted into a strip through the knitting method or the weaving method or the braiding method or the twisting method or the false-twist setting method, then every two or more woven strips are woven again or twisted to form a large strip, in the similar way, a three-dimensional structural ribbon is woven or ribbons in the space pore distribution change are arranged in the fiber bundle section by section in the opposite direction, and 0.01D-100D monofilament fiber bundles, multifilament fiber bundles, yarn or fiber bundles combining the monofilament fiber bundles, the multifilament fiber bundles and the yarn are externally used and twined into a thread in a wrapping mode. The method is simple and convenient to operate, and the prepared control line can achieve the intelligent liquid conveying function and can be widely used in the fields of maternity-child hygienic products, adult paper diapers, sports clothes, shoes, medical operation clothes, dressings and the like.

The invention relates to a method for preparing a textile fiber / graphene / BiPO4 composite environmental catalytic material. The method comprises the steps: dipping textile fibers into a saturated dispersion solution of graphene oxide, then, carrying out baking, carrying out washing, then, putting the textile fibers into a reducer solution, carrying out a reaction for 0.5 to 1 hour at the temperature of 50 DEG C to 80 DEG C, carrying out washing, and carrying out baking, so as to obtain textile fiber / graphene; and adding the textile fiber / graphene into a solution of Bi(NO3)3 and Na3PO4, carrying out stirring, then, adding NaH2PO4 and urea into the solution, carrying out a hydrothermal reaction for 3 to 8 hours at the temperature of 120 DEG C to 180 DEG C, carrying out cooling, then, carrying out washing, and carrying out baking, thereby obtaining the textile fiber / graphene / BiPO4 composite environmental catalytic material. The method disclosed by the invention is simple and is adaptable to industrial production; and the obtained composite material has a relatively good environment purification effect.

The invention relates to a fiber / CNT(carbon nano tube) / Ag3PO4 three-dimensional recyclable efficient catalytic material, as well as preparation and application thereof. A three-dimensional continuous structure is constructed on the surface of textile fiber by CNTs, and surfaces of the CNTs are loaded with nano Ag3PO4. Preparation comprises: soaking fiber in a dispersion liquid containing CNT compound Ag3PO4 and polyethylene glycol 2000, lasting reaction for 2-4 h at 60-80 DEG C, drying, washing with water, repeating processes of soaking, drying and washing with water for 3-5 times, and obtaining the material. The fiber / CNT / Ag3PO4 three-dimensional recyclable efficient catalytic material is low in cost, the preparation method is simple, requirements on equipment is are low, and the operability is good; a water treatment agent provided by the invention can remove high-concentration organic pollutants in water, is suitable for advanced treatment of various wastewater, protects the environment, avoids secondary pollution, and has the advantages of being antibacterial, removing odor, absorbing other heavy metal ions, and the like.

The invention provides a synthesis method of a PLGA (poly(lactic-co-glycolic acid)) chemically modified material and a method for preparing nanoparticles from the material. PLGA reacts with a gallic acid derivative, an amino group on a gallic acid derivative molecule and a carboxyl group on PLGA are subjected to a condensation reaction to form an amido bond, and PLGA is structurally modified, so that PLGA can specifically recognize and combine HDACs (histone deacetylases). Then the nanoparticles are prepared from gallic acid derivative-modified PLGA through ultrasonic treatment, can be specifically combined with the HDACs, have smooth and complete surfaces, are large in entrapment capability, uniform in particle size distribution, stable in property and capable of realizing directional delivery of carried drugs and have the bright application prospect.

The invention provides a wireless communication method. The wireless communication method includes generating a message frame and sending the message frame. The message frame comprises a physical frame head portion, an MAC (medium access control) frame portion and a transmission identification position. As the transmission identification position is a first value, the physical frame head potion of the message frame employees the omnidirectional antenna transmission, the MAS frame portion employees directional antenna transmission. The invention further provides a wireless communication device. According to the technical scheme, the physical frame head portion and the MAC frame portion are separably transmitted, in this way, directional transmission of message is achieved to increase throughput capacity in the area; and by receiving the physical frame head portion of omnidirection transmission, the STA with directional transmission unsupported also learns the current channel occupation condition, accordingly avoiding influence to the directional transmission.

The invention discloses an integrally packaged ultra-thin flexible antenna loaded with an AMC structure. The antenna comprises a monopole antenna, an AMC structure and an intermediate substrate, wherein the monopole antenna comprises a first radiation unit, a first floor, a microstrip feed line and a first base; the AMC structure comprises a second radiation unit, a second base and a second floor;the first floor and the second radiation unit are respectively bonded on both sides of the intermediate substrate; the front surface of the first substrate is printed with the first radiation unit and the microstrip feed line, and the back surface is printed with the first floor; the first radiation unit and the microstrip feed line are connected; the bottom edge of the microstrip feed line is connected to the bottom edge of the first base; the bottom edge of the first floor and the bottom edge of the first base are connected and collinear; the front side of the second base is printed with the second radiation unit, and the back side is printed with the second floor; and the bottom edge of the second radiation unit and the bottom edge of the second base are connected and collinear. The AMC structure is used as the backplane of the omnidirectional radiation monopole antenna, and its in-phase reflection phase characteristics are used to keep the antenna low profile, increase the radiation toward the surface of the human body, and improve the radiation gain and efficiency.

The invention relates to a fiber / CNT(carbon nano tube) / BiVO4 three-dimensional recyclable efficient catalytic material, as well as preparation and application thereof. A three-dimensional continuous structure is constructed on the surface of textile fiber by CNTs, and surfaces of the CNTs are loaded with nano BiVO4. Preparation comprises: soaking fiber in a dispersion liquid containing CNT compound BiVO4 and polyethylene glycol 2000, lasting reaction for 2-4 h at 60-80 DEG C, drying, washing with water, repeating processes of soaking, drying and washing with water for 3-5 times, and obtaining the material. The fiber / CNT / BiVO4 three-dimensional recyclable efficient catalytic material is low in cost, the preparation method is simple, requirements on equipment is are low, and the operability is good; a water treatment agent provided by the invention can remove high-concentration organic pollutants in water, is suitable for advanced treatment of various wastewater, protects the environment, avoids secondary pollution, and has the advantages of being antibacterial, removing odor, absorbing other heavy metal ions, and the like.

An embodiment of the invention provides an auxiliary plug board for a circuit breaker test. The auxiliary plug board for the circuit breaker test comprises a board body, wherein a contact plane is arranged on the board body; connection holes which correspond to pins on an aviation plug are formed in the contact plane and are connected with an output end of the auxiliary plug board; fixed columns which are in clamped connection with fixed bolts on the aviation plug are arranged on two sides of the board body; waterproof projections are arranged at the edge of the contact plane on the board body; and an infrared sensing module is further arranged on the contact plane. The auxiliary plug board is arranged between the aviation plug and followed-up power supply and control equipment, and directional transmission of different data in the aviation plug can be realized, so that a cover plate of a circuit breaker mechanism does not require to be opened during test; the number of operators is reduced; labor and time costs are reduced; closing and locking are not required to be relieved manually in a test process; and therefore, operation risks of maintainers are reduced.

The invention discloses a loudspeaker and a loudspeaking system applying the same, the loudspeaker comprises a shell and a function module arranged in the shell, and the shell is an annular body withan opening, so that the loudspeaker can be arranged at a preset position in a sleeving manner to produce sound. The appearance of the loudspeaker is set to be the annular body with the opening, the loudspeaker can be arranged on the neck in a sleeving mode for sound production, and therefore the use comfort of the loudspeaker can be improved.

The invention discloses a wireless communication method between an information processing terminal and an another information processing terminal. The information processing terminal comprises: an unmanned aerial vehicle and a control station, and the information processing terminal comprises a processor; a memory coupled to the processor, the memory storing instructions; a transceiver coupled with the antenna array; a beamformer coupled with the transceiver; a global positioning system; and a rotation sensor which is used for sensing the rotation direction information of the information processing terminal. According to the information processing terminal, directional transmission or receiving is achieved through beam forming, the power of received signals is enhanced, and therefore the high signal-to-noise ratio is provided.

The invention discloses a composite cross-linked structure reinforced sludge coagulation modifier. The composite cross-linked structure reinforced sludge coagulation modifier comprises, by mass, 100 parts of a structural material, 1-3 parts of a reinforcing agent, 15-20 parts of a dehydrating agent, 1-3 parts of a coagulation agent, 0.5-3.5 parts of an accelerant, 2-4 parts of a dispersing agent and 0.5-1 part of a biocide. The invention also discloses application of the composite cross-linked structure reinforced sludge coagulation modifier in sludge treatment. All the components have strictaddition and mixing sequences in the application, and the sludge treatment effect is seriously influenced by improper addition. The composite cross-linked structure reinforced sludge coagulation modifier provided by the invention has good sludge reinforcement and modification effects on sludge, is simple and convenient in application method, and easy to construct, has no secondary pollutants in the application process, has good application and popularization value, meets various application requirements of sludge recycling, and has important significance in green treatment and application of sludge.

The invention provides a water conservancy bridge flood-fighting protection device which comprises a mounting hoop, the back face of the mounting hoop is in threaded connection with a mounting bolt, the position, close to the front face, of the top of the mounting hoop is fixedly connected with a material shaking limiting mechanism, the two sides of the material shaking limiting mechanism are each provided with a protection baffle through a transmission connecting rod, floating buffer mechanisms are uniformly and rotatably connected with the surfaces of the tops of the protection baffles, an adjusting guide mechanism is fixedly connected with the middle of the interior of each protection baffle, one end of each transmission connecting rod is rotatably connected with the interior of the corresponding adjusting guide mechanism, and limiting sliding rods are symmetrically and fixedly connected with the positions, close to the front faces, of the inner sides of the protection baffles. The invention relates to the technical field of water conservancy. According to the water conservancy bridge flood-fighting protection device, the impact force of flood can be buffered through contact resistance, and damage caused by the flood to the protection device is avoided.

The invention provides an IC radio frequency antenna packaging structure manufacturing method and an IC radio frequency antenna packaging structure and relates to the technical field of semiconductor packaging. The manufacturing method comprises the following steps of respectively providing a first substrate and a second substrate, mounting a functional chip on the first substrate, forming a first hemispherical groove in the first substrate, and arranging a first dielectric layer in the first hemispherical groove to form a first packaging piece; mounting a radio frequency chip on the second base material, and performing plastic package and exposing a second line bonding pad of the radio frequency chip; arranging a radio frequency connection end on the second line bonding pad; an antenna being arranged at the radio frequency connection end; a second hemispherical groove being formed in the second base material, a second dielectric layer being arranged in the second hemispherical groove, and a second packaging piece being formed; and pressing the first packaging piece and the second packaging piece to enable the notch of the first hemispherical groove and the notch of the second hemispherical groove to be oppositely combined into a sphere, so a signal of the antenna is transmitted outwards through the sphere, and directional transmission of the signal of the antenna is realized.

The invention relates to a fiber / CNT(carbon nano tube) / MgFe2O4 three-dimensional recyclable efficient catalytic material, as well as preparation and application thereof. A three-dimensional continuous structure is constructed on the surface of textile fiber by CNTs, and surfaces of the CNTs are loaded with nano MgFe2O4. Preparation comprises: soaking fiber in a dispersion liquid containing CNT compound MgFe2O4 and polyethylene glycol 2000, lasting reaction for 2-4 h at 60-80 DEG C, drying, washing with water, repeating processes of soaking, drying and washing with water for 3-5 times, and obtaining the material. The fiber / CNT / MgFe2O4 three-dimensional recyclable efficient catalytic material is low in cost, the preparation method is simple, requirements on equipment is are low, and the operability is good; a water treatment agent provided by the invention can remove high-concentration organic pollutants in water, is suitable for advanced treatment of various wastewater, protects the environment, avoids secondary pollution, and has the advantages of being antibacterial, removing odor, absorbing other heavy metal ions, and the like.

The invention discloses a biochemical test stirring device. The biochemical test stirring device comprises a stirring kettle, a limiting supporting plate is fixedly connected to the position, close to the top end, in the stirring kettle, a driver is fixedly connected to the middle position of the top of the limiting supporting plate, swing rod mechanisms are uniformly and fixedly connected to the outer side of an output shaft of the driver, and air pressurizing mechanisms are uniformly and fixedly connected to the surface of the inner wall of the stirring kettle. The invention relates to the technical field of chemical machinery. According to the biochemical test stirring device, the contact resistance between a mechanical mechanism and the surfaces of biological cells is reduced, and excessive damage of mechanical force to the biological cells is avoided.