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31results about How to "Avoid the disadvantages" patented technology

Application of three-dimensional ordered macro-porous perovskite type oxide in preparing hydrogen through carbonic fuel chemical chain

The invention provides an application of a three-dimensional ordered macro-porous perovskite type oxide which is used as an oxygen carrier for preparing hydrogen through a carbonic fuel chemical chain. The three-dimensional ordered macro-porous perovskite type oxide has the characteristics of the perovskite type oxide and has a three-dimensional ordered macro-porous structure of an inverse opal structure. The three-dimensional ordered macro-porous perovskite type oxide is used as an oxygen carrier for preparing the hydrogen through the carbonic fuel chemical chain and has a general formula of ABO3, wherein A is rare-earth metal and B is transition metal. The three-dimensional ordered macro-porous structured perovskite structure has stable properties and longer service life; pore channels and specific surface area are bigger; during a contact process of the oxygen carrier and a carbonic fuel, much more lattice oxygen for participating in reaction can be supplied; the contact of the oxygen carrier and the carbonic fuel can be boosted; the specific surface area of the oxygen carrier can be increased by abundant pore channels; catalytic conversion between small particles and gas molecules is boosted; the three-dimensional ordered macro-porous perovskite type oxide has higher reaction activity in chemical chain combustion and steam pyrolytic decomposition; and compared with the conventional metal oxygen carrier, the three-dimensional ordered macro-porous perovskite type oxide has higher reaction activity and hydrogen yield.
Owner:GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI

Wireless video monitoring system based on wide water domain

The invention discloses a wireless video monitoring system based on a wide water domain. A ship, vehicle and boat hybrid monitoring manner is adopted to establish a monitoring system, a wireless-based network-carrying system is constructed for a ship-vehicle-boat monitoring system, wireless network coverage is carried out by a 3G (The 3rd Generation Telecommunication)+WiMAX (Worldwide Interoperability for Microwave Access)+WiFi (Wireless Fidelity) hybrid architecture mode, servers are erected on a boat, a vehicle and a boat for transmitting and processing videos, and video data acquired by the ship, the vehicle and the boat are transmitted to a monitoring center through the network-carrying system. The monitoring system based on the wide water domain, provided by the invention, has the advantages of good coverage type, flexibility in detection, no influence from weather environment, and the like, can better avoid the defect brought by traditional satellites, can be used for monitoring the wide water domain in real time, has a aerial panorama with the formation time reduced from traditional 3-7 days to about 1-2 days, and can work under weather conditions such as rain, snow, fog and the like that the traditional satellites can not form an image and give a corresponding result image.
Owner:NANJING UNIV

Composite process antibacterial ceramic tile and preparation method thereof

The invention relates to the technical field of new building ceramic materials, and particularly discloses a composite process antibacterial ceramic tile and a preparation method thereof. The composite process antibacterial ceramic tile comprises a green body layer and an antibacterial glaze layer, glaze of the antibacterial glaze layer contains a first antibacterial agent, and surface micropores of the antibacterial glaze layer are filled with an antibacterial antifouling agent; and the first antibacterial agent comprises zinc silicate and / or zinc aluminate, the antibacterial antifouling agent contains a second antibacterial agent, and the second antibacterial agent comprises nano zinc phosphate and / or nano zinc zirconate. The preparation method comprises the following steps: preparing the green body layer, preparing the antibacterial glaze slip, spraying the antibacterial glaze slip on the surface of the green body layer, sintering to obtain a semi-finished product, polishing the semi-finished product, and polishing the surface of the semi-finished product by using an antibacterial antifouling agent to obtain the antibacterial ceramic tile. According to the antibacterial ceramic tile, a composite antibacterial technology combining in-glaze antibacterial and glaze layer surface micropore antibacterial is adopted, efficient and lasting antibacterial of a ceramic tile product is achieved, antibacterial components do not affect permeability of a glaze surface, and the antifouling performance of the glaze surface can be achieved.
Owner:FOSHAN OCEANO CERAMICS +1

Chlorination method for sucrose-6-ethyl ester

The invention relates to a chlorination method for sucrose-6-ethyl ester. The chlorination method comprises the following steps: (1) respectively preparing a chlorination reagent and a solution of sucrose-6-ethyl ester from a polar non-proton solvent; (2) chlorinating the sucrose-6-ethyl ester solution by a chlorination reagent solution; (3) refluxing under reduced pressure; and (4) evaporating the polar non-proton solvent by distilling, recycling, neutralizing the sucrose-6-ethyl ester solution in a distillation kettle, removing the solvent, adding water to dissolve, discoloring and crystallizing to obtain a sucrose-6-ethyl ester crude product, wherein the recycled a polar non-proton solvent is used for the chlorination reagent solution prepared in the step (1). According to the chlorination method, generated hydrogen chloride and sulfur dioxide are discharged by refluxing under reduced pressure to promote reaction to positively perform, and the final reaction temperature is reduced to 105 DEG C which is lower than the highest holding temperature in the existing chlorination technology by 10 DEG C, so that the defects generated by carbonization in the chlorination process are completely avoided; and the used polar non-proton solvent can be recycled for a next-batch chlorination reaction process, and therefore, the chlorination method is especially suitable for industrial production.
Owner:NANTONG CHANGHAI FOOD ADDITIVE

Fence type shock insulation structure and design method thereof

The invention discloses a fence type shock insulation structure and a design method thereof, and belongs to the technical field of shock insulation structures. The fence type shock insulation structure comprises a plurality of anti-seismic units, and the multiple anti-seismic units are arranged and distributed on the outer side of a protected building with the protected building as the circle center to form a circular shock insulation structure. The bottom surface of an anti-seismic unit is fixed with a foundation; the anti-seismic unit is of a block-shaped structure with a rectangular section. According to the design method of the fence type shock insulation structure, the shock insulation structure and the foundation are modeled and simulated through a finite element method. A parametric modeling method is adopted when the anti-seismic units and the circular arrangement of the anti-seismic units are designed and calculated, and simulation results of different geometric dimensions and different materials can be obtained only by scanning designed parameters. According to the fence type shock insulation structure and the design method thereof, the arrangement mode is simple and easy to implement, and the problems that a traditional anti-seismic structure is complex in design and large in installation difficulty are solved; the problem that according to a traditional anti-seismic scheme, the anti-seismic performance of an existing building cannot be upgraded under the condition that the structure of the existing building is not changed at all is solved.
Owner:XI AN JIAOTONG UNIV

Jacket platform

InactiveCN112112182ASave construction period and construction costEnsure smooth insertionFoundation engineeringGroutSeabed
The invention discloses a jacket platform. The jacket platform is mainly suitable for shallow water leg inner piles and comprises a jacket and steel piles, wherein the steel piles are downwards inserted into jacket legs of the jacket and fixed to a seabed; the jacket platform further comprises crown plates and gap plates, the crown plates are connected to the outer walls of the steel piles in a sleeving mode, the bottoms of the crown plates are fixed to the top ends of the jacket legs to connect the jacket legs and the steel piles into a whole, and then environmental loads borne by the jacketand dead weight are transmitted to the steel piles; the gap plates are arranged between the inner walls of the jacket legs and the outer walls of the steel piles, the plurality of gap plates are arranged surrounding the steel piles at intervals and are fixed to the inner walls of the jacket legs. Furthermore, when the jacket platform is in a working state, the loads between the jacket and the steel piles are transmitted, the design that the loads of the jacket are transmitted to the steel piles through the crown plates and the gap plates and finally transmitted to pile foundations fully utilizes the strength of the jacket legs, the steel piles and the crown plates, due to the fact that grouting is not needed, the defects of a traditional grouting scheme are avoided, and meanwhile, the construction period and the construction cost can be greatly saved.
Owner:OFFSHORE OIL ENG

A kind of composite process antibacterial ceramic tile and preparation method thereof

The invention relates to the technical field of new building ceramic materials, and specifically discloses a compound process antibacterial ceramic brick and a preparation method thereof. The composite process antibacterial ceramic tile includes a green body layer and an antibacterial glaze layer, the glaze of the antibacterial glaze layer contains a first antibacterial agent, and the micropores on the surface of the antibacterial glaze layer are filled with an antibacterial and antifouling agent; the first antibacterial agent includes silicic acid Zinc and / or zinc aluminate, the antibacterial antifouling agent contains a second antibacterial agent, and the second antibacterial agent includes nanometer zinc phosphate and / or nanometer zinc zirconate. The preparation method is as follows: first prepare the green body layer, then prepare the antibacterial glaze slurry and pour it on the surface of the green body layer, and make a semi-finished product after firing, polish the semi-finished product, and polish it with an antibacterial antifouling agent. Grinding to produce antibacterial ceramic tiles. The invention adopts the composite antibacterial process of antibacterial in glaze combined with microporous antibacterial on the surface of glaze layer to realize efficient and durable antibacterial of ceramic tile products, and the antibacterial components do not affect the permeability of the glaze surface, and can realize the antifouling performance of the glaze surface.
Owner:FOSHAN OCEANO CERAMICS +1

Wireless video monitoring system based on wide water domain

The invention discloses a wireless video monitoring system based on a wide water domain. A ship, vehicle and boat hybrid monitoring manner is adopted to establish a monitoring system, a wireless-based network-carrying system is constructed for a ship-vehicle-boat monitoring system, wireless network coverage is carried out by a 3G (The 3rd Generation Telecommunication)+WiMAX (Worldwide Interoperability for Microwave Access)+WiFi (Wireless Fidelity) hybrid architecture mode, servers are erected on a boat, a vehicle and a boat for transmitting and processing videos, and video data acquired by the ship, the vehicle and the boat are transmitted to a monitoring center through the network-carrying system. The monitoring system based on the wide water domain, provided by the invention, has the advantages of good coverage type, flexibility in detection, no influence from weather environment, and the like, can better avoid the defect brought by traditional satellites, can be used for monitoring the wide water domain in real time, has a aerial panorama with the formation time reduced from traditional 3-7 days to about 1-2 days, and can work under weather conditions such as rain, snow, fog and the like that the traditional satellites can not form an image and give a corresponding result image.
Owner:NANJING UNIV

Brake pad stamping die with good heat dissipation performance

The invention discloses a brake pad stamping die with good heat dissipation performance, and relates to a brake pad stamping die. The brake pad stamping die comprises a bottom plate, wherein supporting stand columns are fixedly connected to the upper portions of the two sides of the bottom plate; a driving mechanism is fixedly connected to the lower portion of the supporting stand column on the left side; the driving mechanism is rotationally connected with a fan-shaped gear rotating handle; a fixing block is fixedly connected to the upper portion of the middle of the bottom plate; a sliding rack is connected to the middle of the fixing block in a sliding mode; the upper end of the sliding rack is fixedly connected with a mounting frame; fixing plates are fixedly connected to the lower portions of the two sides of the mounting frame; an electric push rod is fixedly connected to the upper portion of one side of each fixing plate; the upper end of each electric push rod is rotationally connected with a swing plate; the lower portion of the other side of each swing plate is rotationally connected with a vertical rod fixedly connected to the upper portion of the corresponding fixing plate; and a connecting shaft is fixedly connected to the upper portion of each swing plate. The electric push rods drive the swing plates to swing, then the connecting shafts are driven to swing, then a refrigerator is driven to swing, so that the interior of the mounting frame is fully cooled and subjected to heat dissipation, and a series of defects caused by too high temperature are effectively avoided.
Owner:ANHUI GUIDA AUTO PARTS

Tunnel portal earth retaining device as well as underground pedestrian passageway construction system and method

The invention provides a tunnel portal earth retaining device, which is used for utilizing a tube push bench and tube joints to conduct the construction of an underground pedestrian passageway, and the tunnel portal earth retaining device comprises an upper embedded steel plate which is arranged on the inner side upper end of a tunnel portal and a lower embedded steel plate which is arranged on the inner side lower end of the tunnel portal, a plurality of vertical profile steels which are vertically arranged are welded between the upper embedded steel plate and the lower embedded steel plate, every two adjacent vertical profile steels are connected with each other in a welding way through a transverse profile steel which is horizontally arranged, the vertical profile steels and the transverse profile steels form a plurality of square holes in the vertical direction, and the square holes are used for the tube joints and the tube push bench to pass through in construction. The vertical profile steels and the transverse profile steels are used for substituting H-shaped steels, the tube joints are pushed into earth by passing through the vertical profile steels and the transverse profile steels, so that not only can an earth retaining effect be realized, but also the defects caused by the gas cutting of a great number of profile steels can be avoided, and the tunnel portal earth retaining device as well as the underground pedestrian passageway construction system and method, which can improve the construction efficiency, reduce the construction difficulty and save the construction cost, are provided.
Owner:SHANGHAI MECHANIZED CONSTR GRP

Billiard table library wrapping bag structure

ActiveCN103949049BGuaranteed wrappingAvoid the disadvantagesBilliardsEngineeringCushion
The invention relates to a pool table, in particular to an easily detached pool table cushion edged tablecloth wrapping structure. The pool table cushion edged tablecloth wrapping structure comprises a metal cushion, a tablecloth depression bar, an ethylene vinyl-acetate adhesive tape and a cushion edged tablecloth, wherein the bottom surface of the metal cushion which is in contact with a table board surface is provided with a groove; a cloth nailing batten is embedded in the groove; after the cushion edged tablecloth wraps the ethylene vinyl-acetate adhesive tape onto the metal cushion, one end of the cushion edged tablecloth is pressed in the groove on the outer side face of the metal cushion by the tablecloth depression bar, and the other end of the cushion edged tablecloth is fixed with the bottom surface of the cloth nailing batten through code nails. Two ends of the cushion edged tablecloth are firmly fixed to ensure a cushion edged tablecloth wrapping effect; when the cushion edged tablecloth is replaced, the ethylene vinyl-acetate adhesive tape embedded in the groove on the outer side face of the metal cushion and the cloth nailing batten embedded in the groove in the bottom surface of the metal cushion are simultaneously taken out, and the cloth nailing batten is replaced, so that the cushion edged tablecloth is replaced conveniently in a labor-saving manner; as a gluing part does not exist between the cushion edged tablecloth and the bottom surface of the metal cushion, defects brought by tearing the gluing part in the traditional structure are overcome.
Owner:陈峥

Installation structure for assembly type buckle top corner line

The invention provides an installation structure for an assembly type buckle top corner line. The installation structure for the assembly type buckle top corner line comprises a top corner line and aconnecting card, wherein the top corner line comprises a support strip and a decorative strip, the two ends of the support strip are connected with the two ends of the decorative strip, and the support strip is located in the decorative strip, the top and the bottom of the support strip are respectively provided with a hook and a card strip; the connecting card comprises a first connecting memberand a second connecting member perpendicular to the first connecting member, the outer end of the first connecting member is provided with a buckle protruding upwards, the bottom of the second connecting member is provided with a card slot; the hook is engaged with the buckle, the card strip is inserted into the card slot; the first connecting member is fixed at the bottom of a ceiling, the secondconnecting member is fixed on a side wall. Compared with the prior art, the installation structure provided by the invention has the following advantages: the buckle installation method replaces theinstallation method of traditional gluing or nail fixing connection, the invention not only has convenient installation, saves process, saves time and labor, and has good installation effect and highstrength, better waterproof and moisture resistance, environmental protection and no pollution.
Owner:GOLD MANTIS FINE DECORATION TECH SUZHOU CO LTD

Tunnel portal earth retaining device as well as underground pedestrian passageway construction system and method

The invention provides a tunnel portal earth retaining device, which is used for utilizing a tube push bench and tube joints to conduct the construction of an underground pedestrian passageway, and the tunnel portal earth retaining device comprises an upper embedded steel plate which is arranged on the inner side upper end of a tunnel portal and a lower embedded steel plate which is arranged on the inner side lower end of the tunnel portal, a plurality of vertical profile steels which are vertically arranged are welded between the upper embedded steel plate and the lower embedded steel plate, every two adjacent vertical profile steels are connected with each other in a welding way through a transverse profile steel which is horizontally arranged, the vertical profile steels and the transverse profile steels form a plurality of square holes in the vertical direction, and the square holes are used for the tube joints and the tube push bench to pass through in construction. The vertical profile steels and the transverse profile steels are used for substituting H-shaped steels, the tube joints are pushed into earth by passing through the vertical profile steels and the transverse profile steels, so that not only can an earth retaining effect be realized, but also the defects caused by the gas cutting of a great number of profile steels can be avoided, and the tunnel portal earth retaining device as well as the underground pedestrian passageway construction system and method, which can improve the construction efficiency, reduce the construction difficulty and save the construction cost, are provided.
Owner:SHANGHAI MECHANIZED CONSTR GRP

A boron-containing gradient cemented carbide with a shell structure and its preparation method

The invention discloses a boron-containing gradient cemented carbide with a shell structure and a preparation method thereof. The method is to perform boronizing heat treatment on a sintered dense cemented carbide matrix in a boron-containing filler, and the temperature of the heat treatment is slightly lower than that of the hard alloy. The liquidus point of the alloy matrix. The boron-containing gradient cemented carbide has a three-layer structure of surface layer, subsurface layer and core; the surface layer is a shell structure with a uniform distribution of boron-containing phases, the subsurface layer is a gradient transition structure with uniform changes in boron-containing phases, and the core is a structure that does not contain Boron-containing cemented carbide structure; and the concentration of boron-containing phase gradually decreases from the interface between the surface layer and the subsurface layer inwards, and completely disappears at the interface between the subsurface layer and the core. The service performance of the boron-containing gradient cemented carbide is obviously higher than that of ordinary cemented carbide, and the existence of the gradient layer avoids sudden failure caused by the performance difference between the boronizing shell layer and the alloy matrix.
Owner:XIAMEN TUNGSTEN
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