35results about How to "Suitable for commercial application" patented technology

A compact video image recording device which is mountable to a gun and useful for recording video images before and after the firing of the gun. The recording device includes a camera comprising a lens and a video image sensor. The video recording device is mounted on the gun such that the viewing area of the camera includes the target area of the gun. The video image sensor generates an electronic signal representative of a video image impinging the respective sensor. The output of the image sensor is processed and generally employed to produce frame data which are successively stored in successive frame locations of a semiconductor memory organized as a circular buffer memory while the video recording device is in an active state. Upon the firing of the gun, additional frames are stored in the buffer memory for a short period of time and a portion of the buffer memory is employed to preserve a video record of the shooting both before and after the event. Additional frames are successively stored in the unused portion of the buffer memory. In the event of a further firing of the gun, an additional portion of the buffer memory is dedicated to preserving the image data associated with subsequent firing incident. This process may be repeated until the buffer memory is full in the event the gun is repeatedly fired. A video record is thus generated which documents the circumstances preceding and following the firing of the gun.

The invention discloses a vision positioning method and system based on low-precision GPS in automatic driving. Road surface lane lines are detected, extended Kalman filtering is performed on edge points of the lane lines to obtain curves of the lane lines, transverse distance between a vehicle and left and right lane lines is obtained, and based on a high-precision map and GPS, transverse position correction of the vehicle is obtained; road surface traffic signs are detected and identified, longitudinal distance between a vehicle-mounted camera of the vehicle and a target object at a currentmoment is calculated, and based on the high-precision map and GPS, longitudinal position correction of the vehicle is obtained; and finally, accurate vehicle positioning information is obtained basedon the transverse position correction and longitudinal position correction. Thus, by adoption of cooperation of the low-cost low-precision GPS and high-precision map, a high-precision vision auxiliarypositioning function is realized, the positioning is stable, the robustness is high and the cost is low, influence by shielding and reflection by barriers such as city buildings and viaducts does notexist, transverse positioning precision can be within 20 cm, and the vision positioning method and system are suitable for commercial popularization and application.

The invention provides a silicon oxide-carbon composite negative electrode material and a preparation method thereof and a lithium-ion battery. The preparation method comprises the following steps of(a) heating silicon oxide to first temperature in inert atmosphere, adjusting the flow velocity of an inert gas and carrying out heat preservation to obtain a silicon oxide composite material connected with a silicon nanowire, wherein the first temperature is 800-1300 DEG C and the flow velocity of the inert gas is 0-800sccm; and (b) adjusting the silicon oxide composite material, obtained in thestep (a), connected with the silicon nanowire to second temperature, introducing a carbon source gas for chemical vapor deposition under the condition of introducing the inert gas, cooling and then obtaining the silicon oxide-carbon composite negative electrode material, wherein the second temperature is 600-1,000 DEG C. The silicon oxide-carbon composite negative electrode material connected withthe silicon nanowire is obtained by adopting a preparation technology of combining in-situ growth of the silicon nanowire with carbon coating; the electron island effect of a silicon oxide-based material in a charge-discharge cycle process is effectively relieved through building a three-dimensional conductive network; and the silicon oxide-carbon composite negative electrode material has excellent electrochemical properties.

An apparatus and method for the synthesis and treatment of electrocatalyst particles in batch or continuous fashion is provided. In one embodiment, the apparatus is comprised of a three-electrode cell which includes a reference electrode, a counter electrode, and a working electrode. The working electrode is preferably a cylindrical vessel having an electrically conductive region. The electrode assembly is introduced into a slurry containing metal ions and a plurality of particles. During operation an electrical potential is applied and the working electrode is rotated at a predetermined speed. When particles in the slurry collide with the electrically conductive region the transferred charge facilitates deposition of an ad-layer of the desired metal. In this manner film growth can commence on a large number of particles simultaneously. This process is especially suitable as a commercial thin film deposition process for forming catalytically active layers on nanoparticles for use in energy conversion devices.

A semipermeable gas separation membrane is plasma deposited from liquid organosiloxane monomer having at least three silicon atoms and an alpha hydrogen atom. The semipermeable membrane may be employed as a gas-selective membrane in combination with a porous substrate.

The invention provides a column chromatography device with a warning function. The device solves the problem that the existing chromatography device cannot alarm when the liquid is too much or too little. The device comprises a column body, an upper end socket, a lower end socket and a liquid level alarm, wherein a filler is filled in the column body, the column body is provided with a filler inlet and a filler outlet, the upper end socket is arranged on the upper end of the column body and provided with a liquid inlet, an exhaust port and a back-flushing liquid outlet, the lower end socket is arranged at the lower end of the column body and provided with the liquid outlet, the liquid level alarm is arranged on the upper end socket, and the column body is fixedly connected with the upper end socket and the lower end socket. By arranging the liquid level alarm, the column chromatography device with the warning function provided by the invention is capable of providing the warning function when the liquid is too much or too little under the unwatched state, and the device is reasonable in structure, convenient to operate, low in equipment cost, and suitable for commercial popularization and application.

The invention relates to a metal dot color optical filter, a manufacturing method thereof and a liquid crystal display device. The metal dot color optical filter comprises a green light metal dot material with a fluorescence peak close to 530 nanometers or a red light metal dot material with a fluorescence peak close to 635 nanometers, wherein the particle size of the green light metal dot material and the particle size of the red light metal dot material are less than 2 nanometers. The manufacturing method of the metal dot color optical filter comprises the steps of: step 10, preparing the green light metal dot material; step 20, preparing the red light metal dot material; and step 30, preparing the metal dot optical filters by using the green light metal dot material and the red light metal dot material respectively. The liquid crystal display device comprises the metal dot color optical filter. The metal dot material adopted by the metal dot color optical filter has a quantum size effect, and the light color is simple to adjust; the adopted metal dot material has good solubility and can be prepared into ink; and the adopted metal dot material is simple to synthesize, free of toxic elements such as lead and cadmium, environmentally friendly, low in cost and suitable for commercial application.

The invention discloses selenium-rich loquat syrup. Every 1000 mL of the loquat syrup contains 75-500 micrograms of selenium. The selenium-rich loquat syrup is mainly prepared from the following raw materials in parts by weight: 10-20g of loquat leaves, 20-30g of loquat flowers, 80-120g of pears, 5-6g of orange peel, 4-6g of raw ginger, 80-120g of rock candy, 0.1-0.5 g of vitamin C and 0.15-10g ofselenium-rich vegetables. The product has the functions of activating the antioxidant system of a human body and improving the immune function of the human body, and improves the disease resistance;and meanwhile, the loquat syrup disclosed by the invention is suitable for infants and young children, has very good positive practical significance, and solves the urgent problem of the public.

The invention provides a graphene oxide-based nano composite material for amino acid enantiomer separation analysis and a preparation method thereof. The method comprises the steps of: dispersing an L-amino acid derivative gelator into a metal ion solution, and heating and cooling to obtain composite hydrogel; dropwise adding a graphene oxide solution into the composite hydrogel, oscillating and uniformly mixing, and standing for layering at room temperature;and performing filtration to obtain products. The method provided by the invention solves the problems of low separation efficiency, complex operation, difficult recycling and low repeatable utilization rate in the existing enantiomer separation process. The composite material disclosed by the invention can realize chiral conversion under the regulation and control of metal ions, and adsorption of different types of amino acid enantiomers is realized according to different chiral structures, so that effective separation is realized. The solid composite material is easy to recycle, can be repeatedly used, is convenient to operate and has practical application value. The preparation method of the material does not need complex synthesis steps, and is suitable for commercial application of enantiomer chiral separation analysis.

The invention provides a bismuth-based nano-particle catalyst as well as a preparation method and application thereof. The bismuth-based nano-particle catalyst comprises ellagic acid and N, methyl pyrrolidone molecules and bismuth nano-particles which are mutually independent and uniformly distributed around the two molecules. The bismuth-based nano-particle catalyst disclosed by the invention has a specific structure and morphology, salt containing bismuth metal is mixed with ellagic acid and N, methyl pyrrolidone, the three materials are self-assembled into hierarchical metal-phenolic mesocrystal with an ordered quaternary structure, and the bismuth-based nano-particle catalyst is obtained after electrochemical in-situ reduction; the invention also discloses a preparation method of the bismuth nanoparticle-based catalyst and application of the catalyst in carbon dioxide electroreduction reaction, under the action of the bismuth nanoparticles, single selective electrocatalytic reduction from carbon dioxide to formic acid is realized, and the bismuth nanoparticle-based catalyst is expected to be applied to efficient conversion of carbon dioxide gas.

A packaging film which contains pigment particles randomly distributed in a low surface-area density is used for the authentication of products. An imaging device is used to record a first digital image of a packaged product. The positional coordinates, and optionally the color values, of the pigment particles contained in the packaging film are determined from the digital image by means of a computer program and an identification code is calculated from the coordinate or color values and stored in a database. To authenticate the product at a later time, a second digital image is recorded and a test code is determined and compared with the recorded identification code.

The invention discloses a preparation method of an organic fertilizer for loquat trees, wherein the method comprises the following steps: (1) collecting residues containing loquat leaves and/or loquatflowers and ginger as main components, adding bean dregs and water, putting in a cell wall breaking device, carrying out wall breaking treatment to obtain a residue mixture; (2) adjusting the pH value to 5.5-6.5, and adding bacillus thuringiensis and monascus purpureus for fermentation; and (3) drying and crushing the fermented product, adding zinc sulfate, and uniformly mixing to obtain the organic fertilizer for the loquat trees. According to the method, the organic fertilizer with good metal element matching can be obtained, fermentation of plant residues is facilitated, and the organic fertilizer which is more completely fermented is obtained.

The transparent perovskite thin film transistor comprises a transparent substrate, a source electrode, a drain electrode, a gate electrode, an insertion layer, a semiconductor layer and a ferroelectric dielectric layer, the insertion layer is a transparent metal oxide and is arranged between the source electrode, the drain electrode and the semiconductor layer; the ferroelectric dielectric layer is located between the gate electrode and the semiconductor layer; the semiconductor layer is a transparent perovskite thin film. A layer of metal oxide thin film is inserted between the source electrode, the drain electrode and the transparent perovskite thin film to serve as an electron injection layer so as to reduce the electron injection barrier and improve the electron injection efficiency. Meanwhile, a ferroelectric material is used as a dielectric layer to inhibit a gate voltage shielding effect caused by ion migration of the transparent perovskite thin film; the transparent perovskite thin film transistor prepared on the basis can work at room temperature and is good in stability.

The invention discloses a logistics packaging bag, which comprises a bag body with a bag opening, and a sealing tongue for sealing and capping the bag opening. The sealing tongue and the bag body areintegrated; a first pasting area is arranged on the area, close to the bag opening, on the bag body; a second pasting area is arranged on the sealing tongue; and the first pasting area is provided with a pasting belt which is composed of a plurality of adhesive layers and isolation layers, wherein the adhesive layers and the isolation layers are arranged alternately. According to the logistics packaging bag, by arranging the multiple alternate adhesive layers and isolation layers, one adhesive layer and one isolation layer are consumed when the packaging bag is used once, the integrity of thepackaging bag is not damaged, and the purpose of multiple-time reuse is achieved.

The invention discloses a preparation method of a fishing net thread with high fish catching performance, and belongs to the technical field of fishing net thread processing and manufacturing. The preparation method comprises the following steps of (1) inner thread fiber preparation, (2) inner thread fiber coating agent preparation, (3) finished fishing net inner thread preparation, and (4) finished fishing net thread preparation. The preparation method of the high-quality fishing net thread is reasonable in process step matching and easy to apply and popularize, and the prepared fishing net thread has the advantages of being high in strength, good in stability and high in fish catching performance.

The invention discloses a pressurization-heat preservation pre-sealing pressing high-pressure and high-temperature device. The pressure of a primary assembly of a cubic press is increased to 12 GPa from 6 GPa. The high-pressure assembly comprises the following parts: (1) six holding-up hammers which are made of special materials and are synchronously driven by the cubic press, (2) a pyrophyllite pressure transfer medium with a pre-sealing edge or a gradient component, (3) two high-hardness material pressurizing plugs, (4) two high-hardness material pressurizing columns, (5) a sealing pressingmetal cylinder, (6) a sealing pressing heat preservation cylinder, (7) a sealing pressing unit composed of the sealing pressing metal cylinder and the sealing pressing heat preservation cylinder and (8) a pressure boosting unit composed of the pressurizing plugs and the pressurizing columns. The heating and heat preservation units are made of materials with low thermal conductivity and high resistivity. The high-pressure device can reach the pressure of 12 GPa. Compared with the existing device, the device provided by the invention increases pressure by 100% and increases the temperature by 1800 DEG C or above. The device has the advantages of stable and reliable high-pressure and high-temperature performance, large sample cavity size, high pressure generation efficiency and the like.