10 results about "Diffusion" patented technology

The invention relates to the technical field of photocatalytic materials, and relates to a preparation method and an application of bimetallic photocatalytic functional POM/MOFs. Bimetallic photocatalytic functional POM/MOF target materials with a porous structure are prepared through a hydrothermal synthesis technology or a layered diffusion technology with polyoxometalate POM as a functional group, L as a connection ligand and Cu<2+>, Co<2+> or Fe<2+> in a transition metal salt Tm as nodes, and the target materials POM/MOFs are applied in a functional photocatalytic carbon- carbon coupling reaction. The preparation method has the advantages of simple synthetic steps, easy operation, low energy consumption and high yield, and the obtained functional materials have the advantages of stable chemical properties, and easy large-area popularization and application. The MOF photocatalytic materials have a large specific surface area, have a very good conversion rate and reusability under the irritation of a 18W energy saving lamp when the use amount is 6/1000 of the amount of a substrate, and are suitable for the needs of large-scale industrial production.

The trading rights facility of the present invention comprises guaranteeing an access for the quantity and price of a potential imbalanced or complex order, which price is acceptable to both the buyer, the seller, and the market as a whole; and agreeing to fully deliver the quantities at the discovered price within a pre-set delayed time frame. In effect, the trading rights facility of the present invention creates a secondary “liquidity base” that augments the ordinary access liquidity base, and allows for that initial liquidity base to remain untouched by the complex order itself, which is in sharp contrast to current experience where it would take all and ask for more. The initial liquidity base would be there to cushion the access community. The complex access would be at a premium to current market price and would be competitively bid in relation to the whole of the initial liquidity base environment. The trading rights facility of the present invention ensures the transparency of all operations. The trading rights facility of the present invention further allows for the creation for a variable access index product that also provides a supply zero sum diffusion base. In a further embodiment, the trading rights facility of the present invention allows a contract on a settlement price to be traded before the settlement price has been derived.

The invention provides a compact infrared optical gas absorption tank. The tank mainly comprises an upper cavity cover, a lower cavity cover, an infrared light source and a detector, wherein a first reflecting surface, a second reflecting surface, an optical incidence hole and an optical emergence hole are arranged on the lower cavity cover, the infrared light source is mounted at the optical incidence hole, and the detector is mounted at the optical emergence hole; the inner wall of the upper cavity cover is formed by sequentially connecting a third reflecting surface, a fourth reflecting surface, a fifth reflecting surface and a sixth reflecting surface, and a central gas diffusion hole is formed in the center of the upper cavity cover. The invention also provides an infrared gas sensorusing the compact infrared optical gas absorption tank. According to the compact infrared optical gas absorption tank, the first reflecting surface is repeatedly used, the absorption tank and the sensor can be as small as possible under the condition that longer light paths are guaranteed, and the compact infrared optical gas absorption tank and the infrared gas sensor have the advantages of beingsimple in structure, convenient to assemble, small and exquisite in appearance and long in light path.

The invention relates to an optical diffusion film and a liquid crystal display device which uses the optical diffusion film, wherein, the optical diffusion film consists of single-layer polymer material and comprises a polymer material body; furthermore, the upper surface and/or lower surface of the polymer material body respectively forms patterns which consists of n bulges higher than the body by 5um to 350um and are randomly arranged or arranged by prearranged rules. Compared with the prior art, the optical diffusion film of the invention has the advantages that by controlling the dimension, shape and arrangement of the bulges on the upper surface of the film, the optical diffusion film of the invention has good optical diffusion effect and higher light gathering power so as to achieve the optical brightening; furthermore, the liquid crystal display device which uses the optical diffusion film of the invention has few number of the combined components and high optical uniformity and brightness, and reduces the cost of the liquid crystal display device.

The invention provides full-automatic equipment and method for testing the helium diffusion coefficient of a reactor material. The equipment comprises a gas source control valve, a mass flow controller, a flow control valve, a low-vacuum-side vacuum gauge, a gas discharging control valve, a data acquisition card, a test pond control valve, a sample test pond, a sample to be tested, a high-vacuum-side vacuum gauge, a vacuum pump, a vacuum pump control valve, a helium detector, a computer, a helium gas source, a relay and pipelines; a test system comprises a data acquisition card and a computer; the computer is used for receiving, storing and analyzing data of the low-vacuum-side vacuum gauge, the high-vacuum-side vacuum gauge, the mass flow controller and the helium detector, and performing the process flow control on a system through controlling parts, so as to finally realize the automatic testing and result outputting. According to the equipment and the test method, the helium diffusion coefficient of the reactor material can be automatically tested and the problems of complexity in operation and poor test result repeatability in conventional test equipment are solved.

A method for detecting the penetration type water vapor diffusion coefficient of a large-thickness low-porosity asphalt mixture is disclosed. The method includes molding a large-thickness close-gradedcylinder asphalt mixture test piece to be detected; adding a proper amount of distilled water controlling 100% relative humidity in an opened glass container into the container to prepare a water vapor diffusion device; putting the device into a vacuum drying oven capable of controlling a constant temperature, with P2O5 being disposed in the oven to provide stable humidity in the oven; vacuumizing the vacuum drying oven according to a set negative pressure by utilizing a vacuum pump; weighing everyday and recording the reduced mass of the device, namely the mass of water vapor penetrating theasphalt mixture; and calculating the vapor diffusion coefficient at the specific temperature and in the relative humidity gradient according to an equation. The method can achieve testing of the penetration type water vapor diffusion coefficient of the asphalt mixture at specific temperature in relative humidity gradient and under different negative pressures, significantly shortens testing time,and increases the efficiency. A test material is simple to prepare, the test method is simple and convenient to operate and testing precision is high.

According to the present invention an electronic device, which is to be installed in an engine room, comprises a circuit board 11, electronic elements, which are carried by the circuit board 11 and function when electricity is applied from the circuit board 11 to them, a case 3 that accommodates the circuit board 11 on which the electronic elements are disposed, and a cover 6 that covers an opening of the case 3, the entire surface of a conductor pattern formed of a conductive material on the circuit board is covered with a barrier metallic film made of a metal other than the metal of the conductive material having a property of mutual diffusion with a solder material, and the barrier metallic film is further covered with a protective insulating film.