123results about How to "Delayed release time" patented technology

The invention relates to a water cooling temperature control method of the mass concrete of a blast furnace foundation. The method comprises the following steps: (1) embedding circulating water cooling steel pipes on a concrete foundation steel reinforcement holder; connecting the cooling water steel pipes; performing a water-filling pressure test to check whether the leakage point exists; (2) beginning concreting while opening a water pump to circulate the cooling water; (3) monitoring water temperature: adjusting the difference value of the temperature of the water inlet and the temperature of the water outlet to 20-25 DEG C; and (4) controlling the difference value of the maximum temperature in concrete and the temperature on the surface of concrete to 20-25 DEG C. By embedding the cooling water pipes, the temperature difference in and out of concrete can be reduced, the structural crack of concrete can be avoided; and the time for losing heat in concrete is shortened, the maintenance time of the concrete structure is reduced, and the concrete quality is ensured. The work efficiency can be increased by at least four times, the cost is greatly reduced, the work efficiency is increased, and conditions are created for the advance construction of the next procedure.

The invention provides a powerful insect repellent for veterinary use and a preparation method thereof. The insect repellent comprises the following components in parts by weight: 5-8 parts of tripterygium wilfordii, 20-30 parts of radix sophorae flavescentis, 15-25 parts of the fruit of rangoon creeper, 10-15 parts of stone-like omphalia, 20-30 parts of rheum officinale, 10-15 parts of liquorice, and 10-15 parts of beta-cyclodextrin. Effective pharmaceutical ingredients of tripterygium wilfordii and active ingredients of liquorice are separated by using modern pharmacology, meanwhile, scientific composition and preparation are carried out by a modern traditional Chinese medicine principle, stone-like omphalia powder, radix sophorae flavescentis powder, rangoon creeper powder and rheum officinale powder are mixed with the effective pharmaceutical ingredients of the tripterygium wilfordii and the effective ingredients of the liquorice, and the pelleting is carried out through beta-cyclodextrin. Multiple insect repellent ingredients are contained in the prescription to achieve the purpose of thoroughly clearing away protozoon and parasite in vitro and vivo. The insect repellent can be used in the aspects of not only livestock and poultry treatment and prevention but also aquatic parazoon prevention, is simple in production process, definite in treatment effect, and low in cost, and has a certain social application prospect.

The invention discloses a rice crop-residue-derived carbon-based slow release fertilizer coated by lignin-montmorillonoid-chitosan composite and a preparation method thereof. The rice crop-residue-derived carbon-based slow release fertilizer is characterized by being prepared by drying and cutting rice straw and then feeding to a pyrolysis device; after pyrolysis, cooling to room temperature and acquiring biomass charcoal; adding distilled water in the alkali lignin, heating and mixing to acquire A component; adding copper sulfate solution in the montmorillonoid, mixing and acquiring the copper-containing montmorillonoid; adding acetic acid to the chitosan and preparing to be solution; adding glycerinum and mixing with A component and copper-containing montmorillonoid evenly; mixing starch and sodium hydroxide, adding de-ionized water; after water-bathing, heating and mixing at constant temperature, fully mixing with polyving akohol, borax and formaldehyde; reacting and acquiring the crosslinking enveloping liquid; smashing the biomass charcoal and urea by a smashing machine; sieving and mixing with kaoline, placing in a round disk pelletizer; after fully and evenly mixing, spraying the enveloping liquid by a sprayer to mix; after shaping, stopping pelletizing; drying until the constant weight; acquiring the biomass charcoal urea fertilizer.

The invention discloses a safe discharge method of new-energy vehicle capacitor electricity. The safe discharge method includes that when a complete vehicle is subjected to KEYOFF, an MCU (motor control unit) and a VMS (vehicle management system) are delayed for 500 milliseconds to determine that a relay is completely disconnected, the MCU applies 50A of current id to a shaft D of a motor and zero current to a shaft Q to prevent a motor rotor from shaking, and the electricity stored in a capacitor of the MCU is discharged completely by applying voltage to a motor winding. By means of load discharge, time for discharge can be shortened and safety is improved.

The invention discloses an anti-fog resin lens with hydrophilic factors in a surface film layer. The anti-fog resin lens is composed of a resin substrate, a hardened storage grid film layer and a hydrophilic factor slow-release anti-fog film layer. The anti-fog resin lens is characterized in that the hardened storage grid film layer is printed on the surface of the resin substrate; and the outside of the hardened storage grid film layer is coated with the hydrophilic factor slow-release anti-fog film layer to form a hydrophilic factor slow-release anti-fog film layer. According to the anti-fog resin lens, an anti-fog coating is stored when the hardness of the surface of the resin lens is ensured; the release time of the hydrophilic factors in the anti-fog coating is retarded; and the targets that the lens has friction and scratch resistance and long-acting anti-fog effect are reached.

The invention discloses a networked system fault-tolerant control method based on a dynamic event triggering mechanism. The invention relates to a networked system fault-tolerant control method basedon a dynamic event triggering mechanism, which comprises the following steps of: 1, modeling an inverted pendulum networked control problem into a state space model with parameter uncertainty by considering network delay; step 2, based on a Lyapunov stability theory and a linear matrix inequality technology, obtaining a sufficient condition that the system is asymptotically stable and meets a fault-tolerant performance index; and step 3, giving a design method of a state feedback controller under a dynamic event triggering mechanism. The invention provides a networked system fault-tolerant control method based on the dynamic event triggering mechanism, which can reduce the network data transmission times and enhance the system fault-tolerant performance.

The invention provides a method for accelerating the dissipation of electrostatic charge on a semi-conductor chip, which in details is that: When the semi-conductor chip is released from the double-pole electrostatic chuck, negative electric potential is applied at the two poles of the double-pole electrostatic chuck so as to accelerate the dissipation of the additional electrostatic charge on the semi-conductor chip. With the implementation of the technical proposal, the dissipation of the additional electrostatic charge on the semi-conductor chip can be accelerated notably, which reduces the dissipation time of the electrostatic charge and thus the release time of the semi-conductor chip as well and improves the production rate. In addition, the invention is easy to operate and strong in reliability without addition of any mechanical structure.

The invention discloses charcoal-based sustained-release compound fertilizer which is composed of, by weight, 600-650 parts of nitrogen phosphorus potassium compound fertilizer, 25-32 parts of boron fertilizer, 25-32 parts of zinc fertilizer, 70-85 parts of magnesium fertilizer and 125-150 parts of charcoal base, a weight ratio of N:P2O5:K2O in the nitrogen phosphorus potassium compound fertilizer is 6-8:6-8:16-19, and the charcoal base is prepared by subjecting rice husk to thermal cracking reaction at 700-800 DEG C. by adopting the charcoal-based sustained-release compound fertilizer, soil structure can be improved effectively, nutritional ingredient release time of the fertilizer in tobacco field soil can be delayed, utilization rate of nutritional ingredients can be increased effectively, and the objective of improving yield and quality of tobacco leaves is achieved finally.

The invention relates to the field of power grid system control management, and provides a scheduling system and a scheduling method based on voice recognition. According to the scheduling system, a voice processor is additionally arranged in an existing scheduling system, and the voice processor at least comprises a voice recognition module, a text analysis module and a scheduling command recognition module. The voice recognition module converts natural voice into text information; the text analysis module converts text information into a text command; the scheduling command recognition module converts the text command into a standard scheduling command; and the standard scheduling command is executed by the existing scheduling system. A more natural and effective operation means is trulyprovided for a dispatcher, and the dispatcher can conveniently carry out management operation in a more natural and more convenient mode.

The invention discloses nifedipine sustained release tablets and a preparation process thereof. The nifedipine sustained release tablets are prepared from nifedipine, a sustained release agent, a bulking agent, a bonding agent, a solubilizer and a lubricant by the steps of pulverizing, sieving, mixing, granulating, drying, tabletting and film coating. The sustained release agent adopts chitosan, and weight percentages of the components are as follows: nifedipine 20%, chitosan 14-24%, bulking agent 50-60%, bonding agent 4%, solubilizer 1%, and lubricant 1%. The nifedipine sustained release tablets of the invention are simple in production process and long in sustained release action, the adverse reactions after administration are less and mild, and the curative effect on mild and moderate hypertension is definite. The nifedipine sustained release tablets can uniformly release nifedipine within 24 hours, can last the effective blood concentration over 24 hours, and only need to be administered once everyday.

The invention relates to the technical field of biological medicines, and particularly discloses a modified sodium alginate self-developing embolization microsphere and a preparation method and application thereof. The modified sodium alginate self-developing embolization microsphere comprises modified sodium alginate and a developing agent, wherein the modified sodium alginate is sodium alginatewhich is firstly subjected to branching modification to introduce a plurality of hydroxyl groups and then subjected to hydrophobic modification and sulfonation modification, and the branching substitution rate of branching modification is 22-81%; the hydrophobic substitution rate of the hydrophobic modification is 5-32%; and the sulfonation substitution rate of sulfonation modification is 57-266%.When the embolization microsphere disclosed by the invention is used as a drug carrier, the drug loading capacity and the drug loading rate of a negatively charged drug can be remarkably improved, the drug release time can be delayed, and the burst release of the drug is reduced.

The invention discloses a long-effective implantation agent of thymic pentapeptide in the drug agent domain, which is characterized by the following: adopting thymic pentapeptide as treating active material and biologically decomposed material as base; making the appearance as fine rob shape or cylinder shape; injecting or surgerying to transplant into body; releasing drug completely without surgery and fetching; obtaining high-packing rate and drug-carrying quantity to approach constant speed to release one to several months; reducing the medical cost; improving the compliance for patients. The invention has simple preparing technique and high safety, which projects he clinical treatment superiority and good applying prospect.

The invention discloses an antistatic master batch for a PP hollow sheet and a preparation method thereof. The antistatic master batch comprises components by the following weight parts: 70-90 parts of polypropylene powder, 3-9 parts of antistatic particles, 5-15 parts of antistatic powder, and 2-6 parts of plastic processing aid. During prepare, the polypropylene power and the antistatic particles are loaded into a high-speed mixing roll to obtain a blend; the antistatic powder and the plastic processing aid are loaded into the high-speed mixing roll to mix, and then a final blend is obtained; the final blend is loaded into a bidirectional screw extruder to extrude and granulate, and a strip-shaped blend is extruded, led into a water tank to be cooled, and then cut into an antistatic master batch by a cutter after cooling. After the antistatic master batch prepared by the method is used for the PP hollow sheet, the surface anti-resistance value of the hollow sheet can be reduced to 108-1011 ohm, the release time of the antistatic components on the surface is reduced to 1-3 days, the duration period of an antistatic effect is increased to 4-6 months, and the preparation method is simple and easy.

The slow releasing urea is produced with polyvinyl acetate as coating polymer material and granular urea in the weight ratio of 1-3.1 to 100, preferably 2.041 to 100. The production process includes the steps of: sieving granular urea to obtain urea with grain size of 2-3 mm, dissolving polyvinyl acetate in solvent to obtain coating solution, coating urea with the coating solution in the required weight ratio, stoving, sieving and packing. The present invention has proper thickness of coating to regulate nitrogen releasing rate and amount for synchronizing the growth period of crop. The present invention has the features of low cost, reduced pollution of nitrogen fertilizer on environment and agricultural product, etc.

A system and method for executing digital publications having video files embedded therein. In one embodiment all of the video segments in the electronic publication shares the same video characteristics, e.g., the video codec used to encode to video, the video codec profile used, the encoded resolution, and the encoded hit rate. When the first video in the electronic publication is encountered, the system instantiates a decoder node in memory. The decoder node is not released until the execution of the last video in the electronic publication. In an alternative embodiment of the present invention, the various videos embedded in the document do not all share the same video characteristics. In this embodiment, the present invention creates a “map” of the video content describing the location, e.g., page, and the type of video, i.e., the characteristics. The device can then use the map to identify adjacent videos which share the same characteristics and obviate the need of setup and release of socket nodes for similar videos.

The invention discloses a nanofiber reinforced superparamagnetic polyvinyl alcohol composite film and a preparation method thereof. The method is characterized by comprising the following steps: adding an aqueous solution of sodium hydroxide and sulfuric acid into reed pulp, and performing ultrasonic crushing to obtain nanocellulose crystal hydrosol; heating and boiling, adding FeSO4.7H2O and FeCl3.6H2O, and ultrasonically dispersing to obtain nano Fe3O4 supported hydrosol after reacting; adding distilled water into alkali lignin so as to obtain a component A; adding acetic acid into chitosan so as to prepare a solution, and adding glycerin to be mixed with the component A; mixing starch and sodium hydroxide, adding deionized water, fully mixing with polyvinyl alcohol and borax, and reacting to obtain a crosslinked coating solution; covering a part of film-forming solution on a polyfluortetraethylene plate, and airing to obtain a bottom film; alternatively depositing and self-assembling the supported hydrosol on the bottom film so as to obtain a magnetic supported interlayer; alternatively depositing and self-assembling another part of film-forming solution on the interlayer so as to obtain another film layer, thereby obtaining the magnetic film material.