30results about How to "Increase the route of transmission" patented technology

The invention discloses a silicon carbide nanometer heat-insulating wave-absorbing composite material and a preparation method thereof. The template forms the reinforced interface of the SiC coating with discontinuous and discontinuous distribution on the surface. During the chemical vapor infiltration process, the initial SiC nanowires are prepared by the first ventilation and then the heating technology, and the reinforced interface with the SiC coating forms a "T"-shaped pinning structure. , and then use high-temperature oxidation and high-speed carrier gas flow to remove the residual catalyst, and the prepared secondary silicon carbide nanowires and the initial silicon carbide nanowires form a "T"-shaped pinning structure, which is intertwined to form a silicon carbide nanowire network structure. The silicon carbide coating enhances the continuous fusion of the interface and the silicon carbide nanowires penetrate through the cells, which effectively prolongs the heat transmission path, promotes the reflection and absorption of electromagnetic waves, and synergistically improves the thermal insulation performance.

The invention provides a simple method for preparing a carbon-wrapped porous cobaltous oxide nanomaterial with a shell-core structure and its electrochemical performance as an anode of a lithium ion battery. The specific preparation steps include: preparing solid cobalt trioxide nano Cube: After the surface of the prepared nanocube is wrapped with PDA, the carbon-wrapped porous cobaltous oxide shell-core nanomaterial is obtained by medium-high temperature calcination, and finally the shell-core structure carbon-wrapped porous cobaltous oxide nanomaterial is formed by hydrochloric acid etching. The method of the present invention does not add any directing agent and surfactant to participate, the whole synthesis process has mild conditions, environmental protection, cheap raw materials, low requirements on equipment, and is convenient for industrial production. It has great advantages in the preparation of anode materials for lithium ion batteries. Great application prospects.

The invention discloses a preparation method of a graphene quantum dot modified metalloporphyrin nanotube-cadmium sulfide composite photosensitive sensing material. The preparation method comprises the following steps: firstly preparing tetraphenylporphyrin, then preparing water soluble manganese tetrasulfophenyl porphyrin by taking fuming sulfuric acid as a sulfur source, and growing manganese tetrasulfophenyl porphyrin nanotubes on a porous alpha-alumina substrate; then by taking thioacetamide and cadmium acetate as sources, growing cadmium sulfide nanosheet blades on stems of the manganesetetrasulfophenyl porphyrin nanotubes by utilizing a hydrothermal method, and dropwise adding polydimethylsiloxane solution dissolved with graphene quantum dots on the surface of a composite material,and reserving a manganese tetrasulfophenyl porphyrin nanotube / cadmium sulfide composite material after the porous alpha-alumina substrate is removed, so that protective effect of a support material istaken, and then stability of the sensing material and electron conductivity are improved.

A method and an apparatus for playing push information during a video live broadcast are provided. The method for playing push information during a video live broadcast comprises the following steps: reading data from a first server during a video live broadcast, and determining whether the data comprises a push information insertion tag; if the data comprises the push information insertion tag, initiating a push information playing request with respect to a second server, wherein the push information playing request carries a video identifier of the data; receiving a push information playing address corresponding to selected push information; obtaining the push information according to the push information playing address; and playing the push information. The method and apparatus for playing push information during a video live broadcast enable push information to be played during a video live broadcast, and provide another method of propagating push information.

The invention discloses a wear-resistant low-noise automobile brake pad and a manufacturing method thereof. The wear-resistant low-noise automobile brake pad comprises a semimetal framework and modified filler. The semimetal framework is filled with the modified filler. The semimetal framework is prepared from, by weight, 10-25 parts of brass powder, 5-10 parts of nitrile rubber powder, 3-5 partsof foamed iron powder and 1-5 parts of graphite powder. The modified filler is prepared from, by weight, 5-15 parts of boron phenolic resin, 5-10 parts of glass fibers, 5-15 parts of steel wool, 1-5 parts of silicon carbide, 1-5 parts of a silane coupling agent, 5-15 parts of modified natural ore and 0.5-2 parts of titanium dioxide. The wear-resistant low-noise automobile brake pad is good in wearresistance and low in noise and has an obvious noise reduction effect; the manufacturing method is simple, and the manufacturing process is easy to operate; and the wear-resistant low-noise automobile brake pad and the manufacturing method thereof are suitable of large-scale popularization.

The invention relates to the technical field of semiconductors, and discloses an image sensor and a preparation method thereof. In the image sensor, a plurality of columnar through holes are distributed in a dielectric layer above a photosensitive device of each photosensitive area to form a light guide area which is used for guiding light into a photosensitive device, and incident light can be bound in the light guide area to prevent light rays from being shot into adjacent pixel photosensitive areas during propagation to cause light crosstalk, so that the propagation route of the incident light in the light guide area is improved; and the transmission characteristics of the light guide area can be adjusted by controlling the parameters such as the pore size, the dielectric material, the distribution density and the like of the through holes in the light guide area, and controlling the arrangement mode of the through holes, so that an effect of improving the light intensity of the light shot into the light guide area is achieved. Moreover, based on the conventional image sensor circuit, a plurality of through holes are formed in the dielectric layer above the photosensitive area by using an etching and mat accumulation process, so that the image sensor is easy and convenient to operate and easy for mass production.

The invention relates to the field of heat-sensitive sensing materials, and discloses a method for preparing a tetramethoxyphenyl zirconium porphyrin nanotube-selenium trioxide nanosheet composite heat-sensitive sensing material. The invention firstly prepares tetramethoxy Benzaldehyde reacts with chloroform under a hydrogen chloride atmosphere to prepare tetramethoxyphenylporphyrin; then add tetramethoxyphenylporphyrin and anhydrous zirconium chloride to a mixture of benzoic acid and polyethylene glycol react in the solution to obtain tetramethoxyphenyl zirconium porphyrin; then prepare selenium trioxide and use hydrothermal method to produce selenium trioxide nanosheets on the stem of tetramethoxyphenyl zirconium porphyrin nanotubes, and The surface of tetramethoxyphenyl zirconium porphyrin nanotubes-selenium trioxide nanosheets is spin-coated with polymethylphenylsiloxane film, which ensures that the tetramethoxyphenyl zirconium porphyrin nanotubes-selenium trioxide nanosheets The regularity of the structure of the composite material also plays a certain role in protecting the material.