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137results about How to "Closely linked" patented technology

High-speed railway subgrade structure for saline soil areas

The invention belongs to the technical field of high-speed railway subgrade engineering, and particularly relates to a high-speed railway subgrade structure for saline soil areas. The high-speed railway subgrade structure comprises a road cutting structure, wherein the road cutting structure comprises a subgrade bed surface layer and a subgrade bed bottom layer; a partition layer is arranged at the bottom of the subgrade bed bottom layer; a surface drain system is arranged at each of two sides of the road cutting structure, an underground drain system is arranged at the bottom of the surface drain system; the partition layer extends outwards along two sides of the longitudinal direction to intersect the surface drain system or underground drain system. Based on the compact connection of the surface drain system, the underground drain system, the partition layer and the like with the components thereof to achieve special purposes, the high-speed railway subgrade structure is simple, and can effectively cut off capillary water migration pathways between subgrade soil and the road cutting subgrade bed structure, thereby avoiding the problems of salt expansion, break-up expansion, melt sinking and the like and guaranteeing the long-term normal use of high-speed railway subgrade engineering.
Owner:CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP

Method for implementing airborne variable pressure hydraulic energy system

The invention discloses a method for implementing an airborne variable pressure hydraulic energy system. A hydraulic energy system is provided with a hydraulic pump, a hydraulic energy management control unit, and a vibration, temperature, pollution and pressure sensor group, wherein the management control unit consists of a hydraulic energy controller and a hydraulic pump controller; the hydraulic energy controller receives a plane bus signal and a flight state signal transmitted by a flight control system and sends a working state command to the hydraulic pump; the vibration, temperature, pollution and pressure sensor group senses the working state of the hydraulic pump and transmits monitored data to the hydraulic pump controller and performs fault diagnosis and fault isolation on the hydraulic pump; and the airborne variable pressure hydraulic energy system adopts a dual-pump parallel design mode. By using the method, the system can automatically regulate output flow and output pressure according to external load demand and can convert and work reliably in a plurality of working modes, thereby improving the energy utilization efficiency of a hydraulic system, reducing the thermal power loss of the system, and prolonging the service lives of the hydraulic system and accessories.
Owner:XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA

Lattice type steel reinforced concrete superposed beam

The invention discloses a lattice type steel reinforced concrete superposed beam, and belongs to the field of architectural structures. The lattice type steel skeleton of the lattice type steel reinforced concrete superposed beam consists of combined profile steels and reinforcing steel bars; the combined profile steels are formed by connecting upper square steel pipes with middle and bottom profile steel pieces; the reinforcing steel bars consist of upper reinforcing steel bars and lower reinforcing steel bars; the upper reinforcing steel bars are arranged above the upper square steel pipes; the lower reinforcing steel bars are arranged at the lower parts of the combined profile steels; vertical inner stirrups are hooped around the reinforcing steel bars above the upper square steel pipes of the combined profile steels and the bottom profile steel pieces or the reinforcing steel bars below the bottom profile steel pieces to form a cage; concrete is cast in casting holes of the square steel pipes of the lattice type combined profile steels and a transverse outer stirrup hooped cage to form a prefabricated lattice type steel reinforced concrete lower beam; after a prefabricated floor is built on the formed prefabricated lattice type steel reinforced concrete lower beam, a lattice type steel reinforced concrete upper beam is cast in situ to form an integral superposed beam. The lattice type steel reinforced concrete superposed beam improves the torsion resistance, satisfies the bearing capacity requirement of the beam body in the construction and use phase, and effectively increases the building clearance.
Owner:HUBEI HONGYI BUILDING DECORATION ENG

Connection structure of porous surface structure and substrate, preparation method and prosthesis

The invention discloses a connection structure of a porous surface structure and a substrate, a preparation method and a prosthesis. A high polymer material layer is arranged in a gap between the porous surface structure and the substrate, so that the porous surface structure is tightly connected with the substrate, the basic strength of the connecting structure is ensured, the stress shielding phenomenon is improved, and the problem of postoperative osteolysis is solved; wherein a pre-connected complex is arranged on the substrate, the pre-connected complex comprises another porous structureand an intermediate which are connected in advance, the pre-connected complex and the substrate are combined in advance through various methods, and then the substrate with the pre-connected complex is tightly connected with the porous surface structure through a high polymer material layer. Relative movement and even falling between a structure body formed by the high polymer material layer and the porous structure on the surface of the high polymer material layer and the substrate with a smooth surface can be prevented; on the basis of the surface of the porous structure, it can be guaranteed that the surface of the artificial implant prosthesis has excellent bone ingrowth performance, the strength of the substrate is not substantially affected, and the rigidity of the overall compositestructure is optimized to reduce the stress shielding risk.
Owner:YBNX MEDICAL TECH SUZHOU CO LTD

Preparation method of high-mechanical-strength fiber membrane material for artificial blood vessel

The invention relates to a preparation method of a high-mechanical-strength fiber membrane material for an artificial blood vessel, and belongs to the technical field of a biological material. According to the technical scheme, primary hydroxyl in carbohydrate cellulose macromolecules is selectively oxidized by a nitrosyl free radical material, a collagen molecular chain is crosslinked to a certain degree through reaction between an oxidized cellulose material and amino of the collagen molecular chain, ad a three-dimensional net-shaped crosslinked structure is formed in the collagen molecule through the oxidized cellulose material, so that the membrane-forming property and the mechanical strength of the fiber membrane material are effectively improved; tannic acid internally contains a large amount of hydroxyl groups and has an antioxidation function, the tannic acid and protein are subjected to multi-point hydrogen bonding, so that connection in a collagen membrane is tight and the structure is changed to be more compact; furthermore, the tannic acid is a polyphenol substance and has tanning property, so a certain filling effect is achieved, the compactness of the collagen membrane is improved and the tensile strength of the modified collagen membrane is obviously improved.
Owner:FOSHAN WANYANG BIOLOGICAL TECH CO LTD

SSR molecular marker primers interlinked with cabbage yellow testa gene Brsc-ye and application of primers

The invention discloses SSR molecular marker primers interlinked with a cabbage yellow testa gene Brsc-ye and an application of the primers. The marker primer is prepared by the following steps: with genome DNA of yellow-seed cabbages and ordinary brown-seed cabbage as well as a Fe segregation group thereof as a template, carrying out polymorphic primer screening on a yellow-seed cabbage parent and a brown-seed cabbage parent by using 520 SSR primer pairs, subsequently analyzing single plant of the F2 group, screening molecular markers interlinked with the cabbage yellow testa gene Brsc-ye so as to successfully obtain 7 pairs of SSR marker primers interlinked with Brsc-ye gene, and building a molecular genetic map of the cabbage yellow testa gene Brsc-ye. The interlink analysis discovers that the genetic distances of two SSR markers which are in close linkage with two sides of the Brsc-ye gene are 0.17cM and 0.29cM respectively; the molecular markers have the advantages of convenience in detection, stability in amplification and high in repeatability and accuracy; the reference is provided for molecular-assisted selective breeding of the yellow testa characteristics of cabbage and rape; the seed breeding process is accelerated.
Owner:NORTHWEST A & F UNIV

Fixed-post multi-direction electric wire winder

The invention relates to electric wire winding equipment, in particular to an electric wire winder, which has a fixed-post structure, can almost adapt to any external direction and is used for tightly connecting bundles of electric wires and statically and stably conducting current. The electric wire winder consists of a base module and a locking hoop module, and comprises dozens of parts such as a retaining post seat, a limiting screw, a spring inner sleeve, an elastic jacking bush, a sliding barrel cap, a sliding barrel, a locking hoop spring and a locking hoop bolt. The defects of single wire winding direction, excessively small wire winding quantity, lead looseness, unstable current conducting performance and the like in a current well-known electric wire winder are overcome, and a unique fixed-post multi-direction electric wire winding device is provided for people. Apart from the function of conducting current among a plurality of strands of electric wires of well-known electric wire winding equipment, the electric wire winder further has the beneficial effects of extensive connection, compact connection, static and stable conduction, wide use and the like. Moreover, the electric wire winder is easy to implement, and is easy to manufacture. A formed product is attractive, elegant, firm and durable, and has a wide market space and high practical value and economical added value.
Owner:江苏瑞特钢化玻璃制品有限公司

Air-drop type storage-transportation packaging box convenient to stack and preparation method of packaging box

The invention relates to an air-drop type storage-transportation packaging box convenient to stack and a preparation method of the packaging box, belonging to the package and transportation fields. The packaging box comprises a box body and a box cover which are mutually buckled, wherein the box body and the box cover are prepared from the following raw materials in parts by weight through rotational molding: 50-70 parts of linear low density polyethylene, 50-70 parts of low density polyethylene, 40-80 parts of high density polyethylene, 10-30 parts of medium density metallocene polyethylene and 1-6 parts of a coupling agent; and rig grids are arrayed at the bottom of the box body or the top of the box body or the box cover in a matrix manner, the rig grids at the top of the box body or the box cover are mutually seamed and clamped with the rig grids at the bottom of the box body on an upper layer so as to form embedding and splicing type anti-dislocation stacking structure. The packaging box is produced from the polyethylene materials with different densities through mixing and rotational molding, and modularized rid grid structures are arranged at the top and the bottom of the packaging box, so that the strength, impact resistance and packaging efficiency of the packaging box are improved, and the mutual stable stacking of different specifications of packaging boxes is realized.
Owner:河北金后盾塑胶有限公司
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