45results about How to "No nudity" patented technology

The invention provides an ascending aorta repair stent anchored by innominate artery, comprising an ascending aorta stent segment and an innominate artery stent segment, wherein an innominate artery portion of the stent is first released and a body portion is then released; the distal end opening of the body portion facing the distal end of the aortic arch lumen, and the body portion of the stentcovers the dissection at the primary rupture of the ascending aorta. When the release is completed, the main body terminates above the junction of the sinus canal. The longitudinal beam structure is made of a temperature-dependent shape memory metal material extending to the great curvature side of the aortic arch of the innominate artery and to the minor curvature side of the aortic arch, and isreleased so as to satisfy the individualized ascending aortic anatomical arc of different patients to abut against the aortic wall. The stent is anchored only according to the special anatomical shapeof the ascending aorta and the innominate artery and the memory metal longitudinal beam structure. Used in patients with type A aortic dissection in the acute phase of surgical contraindication whenwaiting for the transitional phase of surgery for patients with high surgical risk of acute type A aortic dissection to provide follow-up surgical treatment opportunities.

A modularized thermal insulation device comprises a plurality of thermal insulation modules and connecting structures. Each thermal insulation module is composed of the four parts of a metal shell, a thermal insulation material, a cross-shaped structure and a plurality of sets of bolted connection through holes, each set of connecting structures is composed of nuts, a first gasket, a second gasket and bolts, the adjacent thermal insulation modules are matched with each other through a dislocated mode, and the thermal insulation modules and the outer wall surfaces of equipment and pipelines are compressed by adopting the bolts; aiming at some equipment and pipelines which need to be heated and thermal insulated and also need to be subjected to rapid natural convection cooling after the work of the equipment and the pipelines is completed, the thermal insulation device can ensure the integrity in the mounting and dismounting processes, and can also obviously improve the rapidness of mounting and dismounting; and the thermal insulation device adopts the connecting bolts so that close fit of the thermal insulation modules and the outer wall surfaces of the equipment and the pipelines can be ensured, the thermal insulation effect is greatly improved, and heating elements of the outer wall surfaces of the equipment and the pipelines can be prevented from being burned down due to the fact that the thermal insulation effect is bad.

The invention discloses a plant growth regulator for an oak tree. The plant growth regulator is prepared from the following raw materials by weight: 150-250 parts of 2-4D butyl ester, 250-350 parts of chlormequat chloride, and 900000-1200000 parts of water. Compared with the prior art, after the provided plant growth regulator is used in spraying, a leaf of the oak tree matures 20 days later, the leaf yield of an oak tree garden is increased by more than four times compared with the yield of a tender shoot, the amount of labor used in growing and transferring a tussah is reduced by two thirds, and the plant growth regulator is favorable for large-scale breeding of the tussah. The moisture content and the maturity of the processed leaf of the oak tree are better than those of the tender shoot, and the processed leaf of the oak tree is more suitable for the tussah to eat to grow. The oak tree garden is not exposed, thereby being beneficial for the environmentally friendliness of the oak tree garden.

The invention relates to an energy-saving thermal insulation brick, which solves the technical problems of cumbersome construction, long construction period and high cost of existing building wall energy-saving thermal insulation measures. In the present invention, the raw materials are mixed, stirred, extruded, and maintained. The weight ratio of the raw materials is: 230-320 parts of Portland cement, 35-20 parts of expanded perlite, 430-610 parts of ordinary sand, and 70-15 parts of cinder. 6-3 parts of straw, 4-2 parts of plant ash, 1.6-2 parts of wool felt fiber, and 97-135 parts of water. The invention has good energy-saving heat preservation performance and compressive strength.

The invention provides a beam-column joint structure and a mounting method thereof, and belongs to the field of steel structures. The problem that the existing beam-column connecting strength is low is solved. The beam-column joint structure comprises a column body and four beam bodies, the column body is a circular tube, and the beam bodies are square tubes; the beam-column joint structure further comprises square tube connecting tubes, the connecting tubes sleeve the outer side of the column body and are connected with the column body through connecting pieces, each connecting tube comprisesfour connecting plates, the connecting pieces are formed in an integrated bending mode and each comprises four internal-connecting plates and four corner connection pieces, and each corner connectionpiece comprises two connection plates and two external-connecting plates; the beam-column joint structure further comprises four steel channel connecting seats, and each connecting seat comprises a bottom plate and two side plates; the beam-column joint structure further comprises a pouring seat located in the column body, the pouring seat comprises an upper baffle and a lower baffle, the upper baffle and the lower baffle are connected through a reinforcement cage, and an upper connecting ring and a lower connecting ring are fixed to the bottom face of the upper baffle and the top face of thelower baffle correspondingly; and the four beam bodies sleeve the four connecting seats in a matched mode. According to the beam-column joint structure, the beam-column connecting strength and stability can be improved.

The invention discloses a non-corrosive electricity conduction and resistance reduction material and a maintenance-free grounding device comprising the non-corrosive electricity conduction and resistance reduction material. The non-corrosive electricity conduction and resistance reduction material is mainly composed of raw material asphalt, graphite or / and calcined coke and cement. The maintenance-free grounding device comprising the non-corrosive electricity conduction and resistance reduction material comprises 4-8 grounding electrodes which are horizontally arranged or vertically buried under the ground. The grounding electrodes are mutually connected through metal grounding down leads and horizontal metal grounding bodies to form a metal grounding looped network. Each grounding electrode comprises a metal grounding body and a non-corrosive electricity conduction and resistance reduction material layer, wherein the thickness of the non-corrosive electricity conduction and resistance reduction material layer is 30-45 millimeters, and the use amount of the non-corrosive electricity conduction and resistance reduction material wrapped around the outer surface of every one-meter long portion of the metal grounding body is 6-8 kilograms. The metal grounding down leads, the horizontal metal grounding bodies and the metal grounding bodies are connected in a welded mode. By means of the technical scheme of the non-corrosive electricity conduction and resistance reduction material and the maintenance-free grounding device comprising the non-corrosive electricity conduction and resistance reduction material, the corrosion problem of an existing grounding device can be solved effectively.

An ascending aorta repair stent anchored by the innominate artery, including the ascending aorta stent segment and the innominate artery stent segment, the innominate artery part of the stent is first released, and then the main part is released, and the distal opening of the main part is facing the aortic arch lumen far away end, the main part of the stent covers the primary tear of the ascending aorta with dissection. After release, the body portion terminates above the sinotubular junction. The longitudinal beam structure is made of temperature-dependent shape-memory metal materials extending to the greater curvature of the aortic arch and the lesser curvature of the aortic arch that continue to the innominate artery. Stick to the aortic wall. The stent is anchored only by the special anatomical shape of the ascending aorta and the innominate artery and the memory metal stringer structure. It is used for patients with type A aortic dissection who are waiting for surgery when there are surgical contraindications in the acute stage, and provides opportunities for follow-up surgical treatment for patients with acute type A aortic dissection with high surgical risk.

The invention discloses an antimicrobial nylon powder for a trolley coating and a preparation process of the antimicrobial nylon powder. The antimicrobial nylon powder for the trolley coating comprises the following components: a nylon resin, an antibacterial silver ion masterbatch, organic fillers, an adhesion promoting agent, a high-temperature resistant antioxidant, an ultraviolet stabilizer, a leveling agent and a nucleating agent, wherein the nylon resin is PA11 or PA12 or PA1012 or PA1212. The invention also relates to the preparation process of the antimicrobial nylon powder for the trolley coating. The invention has the beneficial effects that the antimicrobial nylon powder has a good antimicrobial effect and is a very good environment-friendly material, and the adhesion of the nylon coating and a trolley metal layer is good by adding the adhesion promoting agent to the antimicrobial nylon powder, so that a trolley can be protected for a long term.