32results about How to "Meet the requirements of large-scale applications" patented technology

The invention discloses a lithium ion battery silicon / carbon negative electrode composite material. The lithium ion battery silicon / carbon negative electrode composite material is of a core shell structure, wherein a core is porous-structure silicon particle, a shell layer is a zigzagging carbon nanotube cluster having a large amount of gaps, and interfaces of the core and the shell layer are connected by a metal silicide. In the lithium ion battery silicon / carbon negative electrode composite material, the volume expansion of silicon during the charge-discharge process is remarkably reduced byporosity of the silicon particle, and the diffusion performance of lithium ions in the silicon is improved; with high conductivity of the carbon nanotube cluster, the defect of low conductivity of the silicon is overcome, meanwhile, the carbon nanotube cluster is used as a flexible external buffer layer, the volume expansion of the silicon is further reduced; and the metal silicide is used as a compact connection point, an electron transmission passage is built between the silicon and the carbon nanotube, and the carbon nanotube can be prevented from falling off during the charge-discharge process. The novel-structure silicon / carbon negative electrode composite material provided by the invention has the advantages of high specific capacity, good cycle property, excellent rate performanceand the like in application of a lithium ion battery and is low in fabrication cost and simple in method, and industrial production is easily achieved.

The invention discloses a plate-type heat exchanger with heating and refrigerating functions. The plate-type heat exchanger comprises an upper cover plate, first fluid flowing channels, second fluid flowing channels, thermoelectric modules, a lower cover plate and an installing and fastening structure; the upper working face and the lower working face of each thermoelectric module are provided with the corresponding first fluid flowing channel and the corresponding second fluid flowing channel respectively; the upper cover plate is arranged on the uppermost first fluid flowing channel, and the lower cover plate is arranged under the lowermost second fluid flowing channel; all the parts are connected into an integral structure through first fastening holes formed in the upper cover plate, first flowing channel fastening holes, thermoelectric module fastening holes, heat exchanger fastening holes, second flowing channel fastening holes and second fastening holes formed in the lower cover plate. According to the plate-type heat exchanger with the heating and refrigerating functions, two kinds of fluids can be heated and refrigerated at the appropriate temperature; the advantages that the structure is compact and simple, the efficiency is high, the thermoelectric modules are free of moving parts and free from wear, the life is long, and temperature control is precise are achieved; the main parts can be obtained through punch forming, related thermoelectric units do not need to be customized, the production cost is low, and the large-scale application requirements are met.

The invention discloses a method for improving the laccase yield of Trametes versicolor. In the Trametes versicolor laccase fermentation process, fungi are subjected to ultrasonic treatment and continuous fermentation to generate laccase. By directly conducting ultrasonic treatment on the fungi in a shake flask in the fermentation process, operations are simple, and the contamination probability is reduced. In the mycelia growth stage, fungus mycelia have hyperbranched mycelium morphology and bulbous tops through high-intensity ultrasound so as to increase the area of secretion sites, and themembrane permeability is improved so as to accelerate the secretion of laccase. In the laccase generation stage, reactive oxygen type substances can be induced to be generated through low-intensity ultrasound so as to stimulate the expression of a laccase gene, and therefore the laccase yield of Trametes versicolor is effectively improved. It is shown through experiments that the laccase yield canbe improved by three times or above and 5-6 times at most by means of the method. The method is easy to operate, beneficial for scale-up production and suitable for large-scale laccase fermentation,thereby reducing laccase production cot and meeting the large-scale application requirement.

The invention relates to a method for the automatic vectorization of a road network digital raster map in the technical field of image processing. Firstly, the road network digital raster map is read into a computer memory, a road crossing on a road network image, which comprises a crossed road crossing and a road terminal, is detected, and pixels consisting of the road crossing are marked; secondly, each road crossing is used as a center to detect an adjacent road crossing, a pixel chain from the road crossing to each adjacent road crossing is formed simultaneously, and nodes are added at intervals to each pixel chain, thereby obtaining pattern points recording the shape of a road; and finally, redundant nodes which are added in the step two are deleted, and a vectorization result is preserved according to the normal vector map format. The road network vector digital map formed by the invention can bring great convenience for the operation of locus correction of an intelligent transportation system and a vehicle navigation system.

The invention discloses a method and system for generating an individual recognition identifier combining a plain code and a cipher code. The method comprises the steps of selecting an identifier format; filling an image area of the identifier format with an inputted personal identifier image; converting inputted personal basic information into a binary value, and generating the final filling content; filling a cipher code area of the identifier format with the final filling content; and generating a final identifier according to the obtained image area, the cipher code area and the selected identifier format. According to the invention, a plain code and a cipher code are organically combined, the plain code is convenient for a holder to directly perform natural reading, the cipher code protects private information of the holder, and an individual recognition identifier which has a privacy protection function and is convenient and practical is formed; the identifier generation method can adopt combination of various formats, the number of different individuals identified under the unit area is improved, and the requirement of a large-scale application for identifying a population of 1.3 billion is met; and the method and system can be widely applied to various fields, especially for individual recognition purposes of performing personal privacy protection in the public environment.

The invention relates to the technical field of bioengineering and particularly relates to a method for controlling the growth morphology of mycelia. The method comprises the following steps: at a mycelium growth phase of a filamentous fungus fermentation process, adding farnesol into a fermented solution; and continually fermenting to obtain spherical filamentous fungus mycelia, wherein the final concentration of added farnesol is 150-1000 microns. According to the method provided by the invention, the growth morphology in the filamentous fungus fermentation process can be efficiently and conveniently controlled and the fermentation yield of filamentous fungi is improved; and the method is simple to operate and high in universality and is suitable for being amplified in industrial production.

A provided method for killing viruses in drinking water comprises the following steps: (1) detecting chloride ion concentration and dissolved organic carbon concentration in water by employing a detection instrument; (2) if the chloride ion concentration and the dissolved organic carbon concentration are both 5 mg / L or less, performing no treatment; and if at least one of the chloride ion concentration and the dissolved organic carbon concentration exceeds 5 mg / L, performing pretreatment on to-be disinfected water to enable the two concentration to be both reduced to 5 mg / L or less; and (3) successively adding a trivalent copper ion stabilizing agent, a divalent copper salt and a persulfate into the to-be disinfected water. The method is mile in treatment conditions and free of secondary pollution, and helps to improve the killing efficiency of drinking water on viruses.

The invention relates to a V-shaped slot type micronet assembly and an application method for continuously renewing a dynamic film on line, which comprises a porous filter supporting a dynamic film. The V-shaped slot type micronet assembly is characterized in that the porous filter is a flat-cylindrical micronet net body formed by a plurality of layers of micronets of various calibers which are superposed, fixed into shape and connected sequentially by a plurality of concentric annular V-shaped slots, a sleeve shell is arranged outside the porous filter, and the bottom of the porous filter ishermetically connected with a bottom net; a plurality of closed net chambers internally provided with ceramic granule balls are formed between the micronet net body and the bottom net; the center of the micronet net body is provided with a hollow shaft pipe, a baffle is arranged in the hollow shaft pipe, and the hollow shaft pipe above the baffle is connected with a rotary driving mechanism, a water source and a reverse flushing water pipe with a liquid spray head; the hollow shaft pipe under the baffle is connected with an air source and an air injection pipe arranged under the net body, and0.5 percent or 1 percent of environment mineral material is added into mixed liquid in application. The invention has the advantages of low manufacturing cost, small size, high flux, good out-water quality, high water-outlet rate, power and control system optimization and simplification, low energy consumption and low cost.

The invention discloses a method for improving Trametes versicolor laccase output. The method includes: at the mycelium growth stage of a Trametes versicolor laccase fermentation process, adding farnesol into a fermentation liquor, and further performing fermentation to produce laccase. By applying the method, the laccase output of the Trametes versicolor can be greatly improved. Also, the method is simple in operation, is easy for enlarged production, and is suitable for large-scale laccase fermentation, thereby reducing the laccase production cost, and meeting the requirements of large-scale application.

The invention relates to a continuous damping real-time on-line linear backwashing high-flux disc-type micro-screen assembly and is characterized in that a filtration box is a disc-shaped filtration box formed by a ring enclosure frame and micro-screen matrixes packaged on two end faces of the enclosure frame; a backwashing water conveyance rotating shaft which is perpendicular to the disc surface and is equipped with a middle-set water inlet chamber is arranged at the center of the filtration box; a central rotating disk and micro-screen matrix inner and outer clamping discs are sleeved on the backwashing water conveyance rotating shaft; a radial damping backwashing pipe and a plurality of water collection pipes are uniformly distributed around the inner ring of the box; one end of the damping backwashing pipe is inserted in a slot of the central rotating disk and the other end is fixedly connected with a glider which slides along a slide rail of the ring enclosure frame; two sides of the damping backwashing pipe facing the micro-screen matrixes are equipped with backwashing spray orifices and damping scraper plates which wrap the backwashing spray orifices and close to form duckbilled water nourishing slits; and a produced water flowing channel is formed between the ring enclosure frame and the glider; and a produced water outlet is disposed at the bottom of the ring enclosure frame. The invention has advantages of high flux of produced water, stable water quality and low cost, and is applicable to be applied at scale.