560results about How to "Obvious beneficial effect" patented technology

An ultra-large truss type floating marine platform is composed of floating drums dispersed on water surface, a working platform above water surface, and connecting rods. Its advantage is high stability.

The present invention provides a preparation method for a sample of aluminum-based graphene thermal conductive composite. The method comprises the following steps: (1) grinding the graphene and metal powder with a ball mill, mixing uniformly to form graphene-cladded metal particles; (2) heating the aluminum alloy in a protection furnace with argon therein into semi-solid state, preserving heat and starting stirring; (3) adding the graphene-cladded metal particles prepared in step (2) to the semi-solid aluminum alloy in step (2) and keeping stirring; and (4) after uniformly stirring, heating the semi-solid aluminum alloy into liquid, and casting to obtain a sample of aluminum-based graphene thermal conductive composite. In the sample, the graphene is 0.1-5 wt% of the total amount of the metal. The preparation method avoids the complexity of the powder sintering and nonwetting of the graphene and aluminum. By melting the metal particles into liquid metal with semi-solid viscous force and uniformly mixing the reinforcing phase by stirring, it is possible to prepare a large sample quickly and efficiently with graphene-enhanced aluminum composite in a large scale.

The invention discloses a supercapacitor and a manufacturing method of the supercapacitor. The supercapacitor comprises a positive electrode, a solid electrolyte and a negative electrode. The solid electrolyte is located between the positive electrode and the negative electrode and isolates the positive electrode from the negative electrode, and the solid electrolyte evenly permeates into a hole structure of the positive electrode and a hole structure of the negative electrode. The positive electrode is made of polypyrrole/nano-structured manganese dioxide composite materials. The manufacturing method of the supercapacitor comprises the steps that clean and dry carbon cloth serves as a current collector; a sulfuric acid and manganese sulfate mixed solution is used as an electro-deposition solution, and electrochemical deposition is performed on nano-structured manganese dioxide on the carbon cloth; a sodium perchlorate and pyrrole monomer mixed solution serves as an electro-polymerization solution, electro-polymerization is performed on a polypyrrole film on the surface of the nano-structured manganese dioxide, and the positive electrode is prepared; a phosphoric acid/polyvinyl alcohol electrolyte is prepared; the negative electrode is prepared through active carbon/ graphite materials; the positive electrode and the negative electrode are assembled into the supercapacitor by using the prepared phosphoric acid/polyvinyl alcohol electrolyte.

The invention discloses a sewage biochemical treatment integrated device, system and process method. The sewage biochemical treatment integrated device comprises a pond body (17), wherein an incline guide baffle plate (6) is arranged in the pond body (17), one side of the incline guide baffle plate (6) is provided with an aeration assembly (12) and a vertical gas stripping and reflowing assembly (4), an outer reflowing sludge discharging bucket/trough (13) is arranged between the aeration assembly (12) and the incline guide baffle plate (6), the other side of the incline guide baffle plate (6) is provided with a settling assembly (10) and an incline guide plate/tube (9) parallel with the incline guide baffle plate (6), a chemical spraying perforated pipe (8) is arranged above a water feeding hole of the incline guide plate/tube (9), a settled sludge discharging bucket/trough (14) is arranged below the settling assembly (10), and a movable shielding plate (16) is arranged above the settling assembly (10). The sewage biochemical treatment integrated device has the advantages of small occupation area, low energy consumption, engineering investment reduction, low operation cost and easiness in operation and management because of the combination of gas stripping and reflowing circulating denitrification and suspension cleared sediment dephosphorization.

The invention provides a medicine eluting balloon catheter. The medicine eluting balloon catheter has the characteristics of simple structure, simple production process, less loss of medicines in a conveying process, and less medicine residue amount on a balloon after interventional operation. The medicine eluting balloon catheter has a simple structure and is also suitable for large-scale production.

The invention discloses a ceramic polished brick and a production method and a production line of the ceramic polished brick. The production line comprises a range-shaped texture forming set, a material block forming set, an atomization spraying system, a third material distributing device, a first roll pressing device, a cutting device, a gorge-shaped texture forming set, a sixth material distributing device, a second roll pressing device, a seventh material distributing device and a press device, all of which are sequentially connected through a belt. According to a preparing method, color attaching pulp is attached to a micro powder stack jointly formed by material blocks formed by a range-shaped texture material belt subjected to the action of a texture manufacturing device and tooth roller crushing, the poking operation and super-through line material filling procedures are carried out on pressed powder through two sets of different mechanical arm combinations, wherein the pressed powder is formed through material supplementing, prepressing and cutting and edge removing. The polished brick obtains the polished brick decoration texture jointly composed of the range-shaped texture, the lava-shaped texture and the gorge-shaped texture. The range-shaped texture is smooth and natural, the edge of the lava-shaped texture has color lines fine like silk yarn, the texture is infinitely close to the difference texture of natural stone, and the stone imitating effect is extremely good.

The invention relates to a hydraulic type aligning device inside a pipeline, which is used for the welding construction of a long-distance oil and gas transporting pipeline and mainly comprises a shell, a hydraulic power station, a sliding mechanism, an expanding mechanism, a running mechanism and a straightening mechanism. Furthermore, the hydraulic type aligning device inside a pipeline is characterized in that a jacket of a hydraulic station is internally fixed with the hydraulic power station, a jacket of a liquid tank is internally provided with a hydraulic cylinder, a main shaft is sleeved with a rear sliding sleeve and a front sliding sleeve, and the other end of a traction frame is fixed to the end part of the rear sliding sleeve. Furthermore, the rear sliding sleeve is driven by the hydraulic cylinder to reciprocate on the main shaft, each sliding sleeve adopts an articulated axle fixed with two main top plates and a parallel top plate, an isoceles triangle is formed by the two main top plates, and the parallel top plate is fixed with two support pillars and a jacking. The invention can realize pipe opening alignment, stable and reliable positioning, large pushing force and pipe opening shaping, and can slightly adjust the lifting height and enhance the centric precision of fitted up pipe openings. In addition, the invention has light weight, low price and simple structure.

The invention relates to a fibre optic gas detector for the fire hazard of a coal gab area, comprising a light source, a probe, a photodetector and a signal processing unit, wherein light emitted by the light source is led into the photodetector by the probe so as to be converted into electrical signals, and the electrical signals are led into the signal processing unit to be processed. The fibre optic gas detector is characterized in that an optical circulator is arranged on a light path between the light source and the probe, the light source is connected with the first port of the optical circulator, the probe is connected with the second port of the optical circulator, the third port of the optical circulator is connected with a photoelectric converter, the probe is of a multi-time reflection type white cell structure, and a terminal optical fiber collimator and a fibre reflecting mirror are arranged on the exit end of the white cell.

The invention discloses a battery management system and a balanced state online monitoring method thereof. The battery management system comprises a micro-control unit, a battery voltage detection circuit controlled by the micro-control unit, a battery voltage balancing circuit controlled by the micro-control unit and a battery. The battery management system has the remarkable advantages of being capable being supported to be a large current balancing system; reducing the effect of balancing current on the voltage detection accuracy; being capable of completely separating voltage detection and battery balancing by aid of the framework design mode that single harness and dual channels are adopted for balancing harnesses and voltage detection harnesses which do not affect each other functionally, and meanwhile, not affecting complexity of system harness distribution due to the fact that the single harness and dual channel design is adopted for the harnesses and the quantity of the harnesses is as same as that of the original harnesses performing balancing by aid of the voltage detection harnesses; and being capable of monitoring balancing circuit impedance in real time and accordingly finding whether the balancing harnesses are opened or damaged timely.

The invention relates to unsaturated phosphate ester for producing a high-slump-retaining type polycarboxylic acid water reducing agent. The unsaturated phosphate ester is prepared through the following steps of firstly, performing an esterification reaction on one or a mixture of one or more of the unsaturated acid and the unsaturated acid anhydride, and alcohol; then performing a phosphorylation reaction on the prepared unsaturated acid ester and a bonderite so as to obtain unsaturated phosphate ester; and finally performing a radical polymerization reaction on the prepared phosphate ester, and methyl-2-propen-1-ol or one or a mixture of one or more of TPEG, a chain-transfer agent, unsaturated acid and an unsaturated acid derivative at the room temperature so as to obtain the phosphoric acid base high-slump-retaining type polycarboxylic acid high-performance water reducing agent. The unsaturated phosphate ester disclosed by the invention can be used for synthesizing the water reducing agent, so that the water reducing agent is excellent in properties, and has the advantages of being low in mixing quantity, high in water reducing rate, excellent in slump-retaining capacity, good in adaptability to cement, insensitive to mud content of concrete materials and the like.

The invention discloses an identity authentication method used for logistics sign-off, a logistics sign-off method, a logistics sign-off system and electronic equipment. The identity authentication method used for logistics sign-off comprises the steps that an identity authentication request of a specific user for performing sign-off operation is received; the biological feature data to be verified of the specific user and the reference biological feature data associated with a preset sign-off user are acquired according to information carried in the identity authentication request; whether the biological feature data to be verified conform to the reference biological feature data is judged; and if the judgment result is yes, a reply indicating passing of authentication is returned to the initiator of the identity authentication request, or a reply indicating no passing is returned. According to the technical scheme, the biological feature identification technology is applied to the logistics sign-off link for the first time so that the problem of coexistence of legality, accuracy, authenticity and convenience in the logistics sign-off link can be solved, the user experience can be effectively enhanced and the working efficiency of delivery personnel can also be enhanced.

The invention discloses a method for producing an aluminum-magnesium alloy by utilizing a liquid aluminum cathode method. The method is used for high-efficiently producing the high-quality aluminum-magnesium alloy. The method comprises the following steps of dissolving the high-purity magnesium oxide (MgO) in an electrolyte system consisting of Na3PO3-MgF2-NaCl in an electrolytic cell under the electrolytic temperature of 850DEG C to 900DEG C, wherein the aluminum liquid which is formed by melting a high-purity aluminum ingot is used as a liquid cathode; and applying a coil magnetic field with the intensity of 30mT to 40mT outside the electrolytic cell so as to enable the aluminum liquid to rotate under the electrolytic conditions that the anode current density is 0.47 to 0.52A/cm<2> and the high-purity graphite is adopted as an anode, reducing the magnesium ions on the rotating aluminum liquid cathode into elemental magnesium under the electromagnetic stirring effect to be uniformly dispersed into the aluminum liquid so as to form the aluminum-magnesium alloy product, and producing CO2 gas on the anode. The alloy prepared through the method is uniform in components and contains no impurity. The production process is continuous and easy to control.

The invention provides a novel drug eluting balloon catheter. The novel drug eluting balloon catheter comprises a catheter body, a balloon body (1) and a balloon surface (2) and further comprises a hydrophilic and lipophilic bottom layer (3) and a drug loading coating layer (4). The hydrophilic and lipophilic bottom layer (3) is arranged on the upper surface of the balloon surface (2), the drug loading coating layer (4) is arranged on the upper surface of the hydrophilic and lipophilic bottom layer (3), and the drug loading coating layer (4) is composed of polymer and drug. The novel drug eluting balloon catheter has the advantages of simple structure, simple production process and procedures, low drug loss during delivery and low drug residues on the balloon after interventional operation.

The invention aims to solve the problem that there is few study on effective and lasting improvement methods of sandy clay loam saline-alkaline land in the prior art and provides an improvement methodof sandy clay loam saline-alkaline soil. Improver iron tailings are added into the sandy clay loam saline-alkaline soil, and the iron tailings are utilized to change proportion of sand, powder and clay particles in sandy clay loam and reasonably adjust texture composition to modify the sandy clay loam saline-alkaline soil into loam, so that a lot of capillary pores can be retained, a lot of non-capillary pores and macrocracks can be formed, permeability is improved, water draining and salt washing are facilitated, capillary water can be blocked from going up, salt accumulation is reduced, andsoil salinity can be lowered effectively; by adding organic acid, composted sludge or composted biogas residue, compatibility between iron tailings sand and natural soil is improved, differential settlement and stratification in the process of saline-alkaline soil improvement are avoided or reduced to form soil structure uniform in texture, and lasting improvement of the saline-alkaline soil andstability of soil texture are realized.

The invention discloses an automatic brick production line. By means of the automatic brick production line, stability and reliability of production and operation of the automatic brick production line are improved. The automatic brick production line comprises a conveying device used for conveying brick molds, a positioning device and a discharging device. The conveying device comprises a machine frame, a conveying caterpillar band and a transmission mechanism. The discharging device comprises a material barrel, a discharging baffle and a quantitative discharging gate plate. Material outlet holes are formed in the bottom of the material barrel. Discharging holes are formed in the discharging baffle. Material containing holes are formed in the quantitative discharging gate plate. According to the positioning device, block strips are arranged on the conveying caterpillar band, the conveying caterpillar band inclines so that the brick molds can lean on the block strips, the plurality of block strips are evenly distributed in the length direction of the conveying caterpillar band at fixed intervals, a variable frequency motor is adopted as a power source in the transmission mechanism, and the brick molds during conveying can be accurately and correspondingly arranged below the discharging device by controlling the working frequency of the variable frequency motor.

The invention relates to a manganese based SCR (selective catalytic reduction) catalyst for low temperature denitration and belongs to the technical field of industrial denitration. The manganese based SCR catalyst for low temperature denitration is prepared by mixing the active components containing 3-10 wt.% of MnO2, 0.1-2 wt.% of CeO2 and 0.1-1 wt.% of Nb2O5, and the balance of a carrier TiO2. According to the technical scheme, MnO2, CeO2 and Nb2O5 are mixed to overall achieve the active window of the manganese based metal oxide catalyst within 150 DEG C to 260 DEG C, and the SCR reactor can be arranged after a dust removal device and a desulfurization device, in order to avoid hole plugging and poisoning in the use process of the catalyst improve the service life of the catalyst, and reach the removal denitrification efficiency of the catalyst to above 90%. The invention also relates to a preparation method of the catalyst. The preparation method has good practicality, and is easy for industrialized popularization and application.

The invention discloses a method for quickly assembling an assembled corrugated culvert. The method comprises the following steps: a. assembling the corrugated pipe unit pieces into single pipes; b. longitudinally assembling the single pipes into the culvert; c. coating waterproofing agent on the joint of the culvert; d. coating waterproofing agent on the outside of the culvert; e. inspecting and accepting the assembled culvert. The method has the following beneficial effects: the corrugated pipe unit pieces in the step a are placed on assembling equipment to be assembled, with the axes being horizontal, and when the corrugated pipe unit pieces are assembled on the assembling equipment, the operators stand to operate, so the operation labor intensity is low and the efficiency is high; in the step b, the roller type prong forklift is adopted to transport the single pipes, so the equipment utilization ratio is high and the single pipes are fast and convenient to transport, meanwhile, dislocation adjustment is carried out on the roller type prong forklift, so the adjustment speed is high and the electroplated anticorrosive coating of the corrugated pipe can not be damaged, and bolted connection is carried out on the lifting working platform of the forklift and the crawling ladders at the two sides, so the operation is safe and the efficiency is high; and the waterproofing agent and a preservative are coated on the culvert, so the quality of the culvert can be ensured, and finally the culvert is inspected and accepted, so the quality of the culvertcan be further ensured.

The invention discloses a fault detection system for multiple speakers. The fault detection system for multiple speakers is characterized by comprising a differential amplification circuit, a second-stage operational circuit, a voltage comparator and a fault alarm circuit, wherein two signal terminals of the differential amplification circuit are connected in series in an audio loop of a multi-speaker system, after a rectifying and filtering circuit rectifies and filters signals output by the second-stage operational circuit, the signals are input to an in-phase input end of the voltage comparator, and an anti-phase input end of the voltage comparator is connected to a power source through a potentiometer; the fault alarm circuit does not give an alarm by adjusting the potentiometer at the anti-phase input end of the voltage comparator; when one speaker is broken down and disconnected, differential signals input into the differential amplification circuit are reduced, and output level of the voltage comparator is overturned to trigger alarm. The system has simple circuits and low cost and is convenient to mount, all that is required is to connect the system into the speakers in series, and the operation can be performed; the system can be mounted to a master control room, can also be mounted on each speaker, and can detect whether speaker damage exists in real time.

The invention relates to a method for designing a code book precoded by a multi-input and multi-output system. The method comprises the following steps: according to feedback overhead of the code book, setting uniform quantization reference; according to the uniform quantization reference, constructing a first layer of the code book; calculating quantization error phi of the first layer of the code book; and using the quantization error phi as input for further quantization so as to obtain a second layer of the code book. Through the treatment of the technical proposal, the method can homogenize the quantization error caused by the limitation of the feedback overhead, thereby obtaining diversity using gain of the code book. In addition, in the presence of redundant information of a channel coding module, the advantage of the method is more obvious under the condition of low coding speed.

The invention belongs to the technical field of a concrete admixture in building materials and provides a slow-release type polycarboxylic water reducing agent, a preparation method thereof and application. The slow-release type polycarboxylic water reducing agent is synthesized by adopting a free-radical polymerization method in an aqueous solution. The slow-release type polycarboxylic water reducing agent is prepared by unsaturated polyoxyethylene ether, unsaturated acid or a mixture of unsaturated acid ester and the unsaturated acid, a chain transferring agent, an oxidizing agent, a reducing agent and water. The slow-release type polycarboxylic water reducing agent has the advantages of low doping amount, good plasticity-maintaining effect, good cement adaptability and good energy-saving and environmental-friendly effects and the like; the production process is simple; the equipment investment is less and the cost is low; by the adoption of the water reducing agent, water reducing components can be gradually released, and the content of the effective water reducing components in the concrete is guaranteed, and the plasticity of the concrete is maintained, and the cement hydration can be delayed, further the maintaining capability for the slump and the fluidity is excellent for concrete with large slump and concrete with medium and small slump respectively, and the large-volume concrete cracks generated by over-high hydration temperature can be reduced, and the mixability and the mechanical property of the concrete can be improved.

The optical axis offset error compensation method of the present invention comprises the following steps: first, in the process of an optical imaging system changes from the longest focal length to the shortest focal length or from the shortest focal length to the longest focal length, several zooming positions are uniformly selected and the offset amount of a lower optical axis in the corresponding position is marked; then, the zooming position and the offset amount are stored as a compensation reference value; when using the compensation reference value, find the offset amount that should be compensated from the compensation reference value based on the current focal length value of the optical imaging system to compensate the optical imaging system. The determination apparatus of the present invention comprises an installation platform, a fixing device and a dividing indicator panel. According to the optical axis offset error compensation method and the determination apparatus, a holder servo-actuated system finds the corresponding offset amount from the compensation reference value based on the current focal length value to compensate the optical imaging system and to correct the instability of the optical axis of the optical imaging system. In this way, the center of the field of view is kept aligned with the object always, and the beneficial effect is substantial.

The invention provides a solar street lamp control system based on time, illuminance and visibility. The system comprises a solar photovoltaic module, a controller, a storage battery and a lighting street lamp. The input end of the controller is connected with a photosensitive probe and a camera. Time, illumination intensity and visibility serve as trigger conditions of the controller, wherein the trigger conditions are used for controlling the lighting street lamp to be turned off and turned on. A solar street lamp control method includes the steps that (a), a located period is judged; (b), illumination intensity is judged; (c), a grey level image is collected; (d), visibility is judged, and if V is smaller than Vi, the step (e) is executed; (e), the street lamp is turned on. By the adoption of the solar street lamp control system and method, the turn-on state of the lighting street lamp can be controlled in the aspect of time, the lighting street lamp can be turned on when external illumination intensity and external visibility are lower than set values, the lighting function on overcast and rainy days, foggy days and hazy days is achieved, and traffic accidents are avoided.

The invention discloses a shedding device of a weaving machine, which adopts an electric machine to independently drive each heald frame. The device comprises a plurality of sets of driving mechanisms (3) for driving heald frames (4). The driving mechanisms (3) comprise electric machines (5), driving swing arms (6) and parallelogram linkages (7). The output ends of the driving swing arms are hinged with connecting rods (11) of the parallelogram linkages (7), the driving swing arms (6) and side links (9) are not only of the same length but also are parallel to each other. The electric machines (5) drive the driving swing arms (6), the output ends of the driving swing arms drive the connecting rods (11), and the connecting rods (11) transmit the driving power to the side links (9) at the left sides and right sides of the parallelogram linkages (7) so as to enable the heald frames (4) to complete reciprocating linear motion. In the invention, the driving mechanisms (3) do not occupy any space expect that of a weaving machine rack (12), so that the weaving machine (1) occupies obviously reduced space, the sizes of the driving mechanisms (3) are uniform and only electronic setting is required to adjust heald frame (4) stroke.