174results about How to "Address resource shortages" patented technology

The invention relates to a virtual reality platform based lateral ventricle puncture training system. The system comprises a CT (computed tomography) scanning/MRI (magnetic resonance imaging) image data importing unit, a CT scanning/MRI image reconstruction unit, a virtual reality head-mounted display device, a joystick and a virtual reality processing unit. The CT scanning/MRI image data importing unit is used for providing CT scanning information of patients and patient information; the CT scanning/MRI image reconstruction unit is used for constructing a three-dimensional model, the virtualreality head-mounted display device provides virtual display environment display, and the joystick provides virtual reality environment operating information. The virtual reality processing unit comprises a VR (virtual reality) environment unit, a VR voice recognition unit and a VR surgical unit, wherein the VR environment unit is used for providing a virtual environment matched with a reality surgical environment, the VR voice recognition unit is used for operator voice recognition, and the VR surgical unit is used for executing surgical operations. The virtual reality platform based lateralventricle puncture training system has advantages that the problem of resource shortage in experiment teaching is solved, reality in doctor training is enhanced, training cost is reduced, experience summarization is facilitated for doctors, and patient-doctor disputes can be avoided.

The present invention discloses the process of making artificial board with the crop stalk and timber. The process includes the following steps: mixing processed timber material and processed crop stalk material in a dry material bin, mixing with glue in a glue mixing machine, spreading in a spreading machine to form board blank, pre-pressurizing in a continuous pre-pressurizing machine, hot pressing in a hot press to form coarse board, cooling in a board cooling machine, and cutting in a margin cutting machine to obtain artificial board. Making artificial board with the crop stalk and timber can save timber and make artificial board with high quality.

The invention relates to a special unconventional protein compound duck feed for meat ducks of a fattening period, belonging to special feeds for specific animals. According to the special unconventional protein compound duck feed, a raw material formula is low in corn content, does not contain bean dregs, fish meal and meat and bone meal and consists of the following raw materials in parts by mass: 0.05-0.3 part of compound enzyme preparation, 10-40 parts of corn, 20-50 parts of wheat, 4-8 parts of corn protein feed, 6-9 parts of grain stillage, 3-7 parts of citric acid sludge, 3-6 parts of feed corn protein powder, 1-5 parts of peanut meal, 1-3 parts of germ meal, 1-4 parts of cottonseed meal, 1-3 parts of rapeseed meal, 1-3 parts of mountain meal, 0-1.5 parts of feather meal, 1.0-1.4 parts of lysine, 0.5-1.1 parts of calcium hydrophosphate, 0-1 part of fat, 0.28-0.33 part of salt, 0.1-0.15 part of threonine, 0-0.5 part of methionine and 0.5 part of premix material; and the special unconventional protein compound duck feed is prepared through the steps of mixing the raw materials to be uniform, carrying out heat treatment at the temperature of 85-90 DEG C, and then pelleting. The prepared special unconventional protein compound duck feed for the meat ducks of the fattening period is applicable to the daily feed supplying of fattening-period meat ducks of 6 to 7 weeks old.

The invention relates to a micrografting method for a tetraploid acacia. The method includes the steps of selecting a seedling of a diploid acacia seed as a rootstock, selecting a tissue culture seedling of the tetraploid acacia as a scion, subjecting the scion and the rootstock to cambium alignment by using a cleft grafting method, twining the interface area with silver paper slips, fixing the silver paper twining area with a grafting clamp, planting the grafted seedling into a potted tray containing matrix, then processing a routine management for 20 - 30 days, and acquiring the plant regeneration. By means of the micrografting method, an integral plant is obtained after cultivating the grafted seedling for 20 - 30 days, and accordingly the high efficiency of rapid planting is achieved. The plant regeneration cultivated by the micrografting method has the advantages of stable genetic character, healthy plant, strong growth, short seedling period, fast plant growing and high survival rate ( with a survival rate over 90% in a field planting production land).

The invention relates to a thermal-state mending material taking forsterite as a raw material for converters and a preparation method thereof. The technical scheme is as follows: adopting 45-70wt% of sintered magnesia particles, 5-15wt% of graphite and 15-40wt% of forsterite fine powder as raw materials; adding simple substance silicon powder accounting for 1-10wt% of the weight of the raw materials and liquid pitch modified phenolic resin accounting for 15-25wt% of the weight of the raw materials; and stirring for 5 to 30 minutes to obtain the slurry thermal-state mending material taking forsterite as the raw material for converters. While being used, the thermal-state mending material is poured into the converter, the converter is rotated to enable the mending material to flow to the charging position, the tapping position, the bedding face and the furnace bottom of the steelmaking converter which are in need of thermal-state mending and the mending material is sintered by the heat in the converter. The material has the characteristics of abundant raw materials, low production cost, excellent hydration-proof performance, easiness in sintering at a high temperature and convenience in combination with the converter lining and is beneficial for prolonging the service life of materials of the converter lining.

The invention relates to a new material for a modified ANFO explosive, and in particular relates to a modified ANFO explosive and a preparing method thereof by using rice hull powder and sunflower seed hide powder as a combustible agent. The modified ANFO explosive comprises, by matched group, 91.5%-93.5wt% of ammonium nitrate, 0.2-0.4wt% of compound modifying agent, 3.0-4.0wt% of compound oil phase and 3.5-4.5wt% of combustible agent, wherein the matching ratio total of raw materials is 100%, the compound modified agent is one or more of octadecylamine phosphate, sulfonate or borate, the compound oil phase is one or more of paraffin, soap wax, asphalt, three line oil and microcrystalline wax, and the combustible agent is a mixture of the rice hull powder and the sunflower seed hide powder. According to the modified ANFO explosive and the preparing method thereof, rice hull powder serves as the combustible agent of the modified ANFO explosive, not only the explosion performance of the explosive is improved, but also the product physical property is improved, and the product storage life is prolonged.

The invention provides unconventional protein compound chicken feed special for young broilers, belonging to the feed special for particular animals. The feed comprises the following components according to the parts by weight: 0.1-0.2 part of enzyme preparation, 30-40 parts of corns, 30-38 parts of wheat, 3-5 parts of peanut meal, 1-5 parts of albumen powder, 0-2 parts of hydrolyzed feather meal, 2-4 parts of cottonseed meal, 0-3 parts of waste starch size, 0-4 parts of alcohol lees, 0-3 parts of cottonseed protein, 1-3 parts of rapeseed meal, 0-3 parts of germ meal, 1.8-2.0 parts of fat, 1.48-1.56 parts of stone meal, 1.0-1.3 parts of dicalcium phosphate, 0.3-0.32 part of salt, 1.7-2.0 parts of lysine, 0.12-0.15 part of threonine, 1.3-1.8 parts of methionine, 0.1 part of choline chloride and 0.5 part of premix. The feed solves the problem of shortage of conventional protein chicken feedstuff resources and uses the industrial wastes as raw materials formulas, thus saving the energy and protecting the environment. The feed is suitable for the daily ration of the 0-21-day old broilers.

The invention discloses a process for selectively extracting valuable metals in a waste power lithium battery and repreparing a ternary positive electrode material. The method comprises the followingsteps: (1) carrying out complete discharge, disassembly, ultrasonic stripping, calcination and grinding treatment on a recycled waste lithium battery to obtain a required LiNi1/3Mn1/3CoO2 positive electrode material; (2) leaching the LiNi1/3Mn1/3CoO2 positive electrode material through a wet metallurgy method by using mild acid and reducing agent, wherein the ratio of the positive electrode material to the added acid is controlled to be 20-60 mL/g, so as to obtain a leaching solution rich in lithium and a precipitate containing nickel-cobalt-manganese; (3) leaching the precipitate again by using a trace amount of acid and reducing agent, wherein the ratio of the precipitate to the added acid is controlled to be 20-60mL/g to obtain a metal-rich salt solution; and (4) carrying out coprecipitation on the metal salt solution to obtain a ternary precursor, adding excessive 3-10% of a lithium source according to the amount of substance of the precursor, and calcining the material at a selected temperature to obtain the ternary positive electrode material with good electrochemical performance. According to the method, metal resource utilization can be achieved, the problem of harmful garbage pollution is solved, and the cost is low.

The invention discloses a cultivation method for inducing scutellaria baicalensis hairy root based on agrobacterium rhizogenes infection, which uses an agrobacterium rhizogenes bacteria liquid to infect root of a scutellaria baicalensis explant and induces the scutellaria baicalensis explant to form a hairy root, the scutellaria baicalensis hairy root presents yellow hairy on a MS solid medium, so that scutelloside can be stably synthesized, an ITS sequencing is performed and the hairy root can be identified as the scutellaria baicalensis hairy root of a scutellaria. Then seed selection is performed for further in a seed selection medium and a cultivation condition can be optimized to select lines which raise the content of active ingredient scutelloside used for hairy root traditional Chinese medicines. Hairy root can be obtained through scutellaria of a scutellaria introduced by agrobacterium rhizogenes, wherein the inductivity can reach 10 - 40%, the obtained scutellaria baicalensis hairy root presents yellow hairy which is capable of stably synthesizing scutelloside. According to the invention, the scutellaria baicalensis hairy root of a scutellaria is cultivated on the optimized medium, the growth is rapid and the biomass can be increased for 23 -35 times in 30 - 35 days, and the cultivation is performed under the dark conditions. The invention has the characteristics of low energy consumption and low cost, which is suitable for industrialization production.

The invention relates to a paper making pulp manufacture method which includes that the fiber material after dipped is arranged into a cylinder; the material rotates at a high speed between a rotary shaft and the inner wall of the cylinder under the action of the rotary shaft; the material generates high temperature high pressure phase transition under kneading and extruding; pressure is released suddenly at the discharge opening of the cylinder to lead the cylinder to blow up, thus finishing fiber dissociation and fibrillating; the pulp is extruded out from the discharge opening. The paper making pulp manufacture device includes a main motor body and a motor. A feed opening is arranged on the main motor body; the cylinder is arranged on the main motor body; a spiral shaft is arranged in the cylinder; one end of the spiral shaft is connected with the motor; the shaft rod of the spiral shaft is a conical structure with a diameter gradually increasing from the feed opening to the discharge opening; a spiral slot is arranged on the inner wall of the cylinder; the depth of the spiral slot is decreased gradually from the feed opening to the discharge opening. The invention finishes the fiber dissociation and fibrillating during the pulp manufacture process and has the advantages of low energy consumption and no pollution.