31results about How to "Alleviate the problem" patented technology

The invention provides a novel resonant DC-link soft switching inverter and a modulation method thereof, and relates to the technical field of inverters. The inverter comprises an auxiliary resonant circuit, an inverter bridge, a load circuit and a DC power supply, wherein the auxiliary resonant circuit comprises a bus switch tube, two auxiliary switch tubes, two auxiliary resonant inductors, a primary resonant capacitor, two auxiliary resonant capacitors, an anti-parallel diode of the bus switch tube and four auxiliary diodes; the inverter bridge is of a three-phase bridge structure; the load circuit is a three-phase resistor-inductance load; and various main power switch tubes of the inverter bridge work in manners of sine pulse width modulation and complementary turn-on at a phase difference of 180 degrees. According to the novel resonant DC-link soft switching inverter, a zero-crossing reverse process of current of each auxiliary resonant inductor is avoided, the service life of the inverter is prolonged, and the current stress of the auxiliary switch tubes of the inverter, the conduction loss of the auxiliary resonant circuit and the switching losses of the bus switch tube and the auxiliary switch tubes are effectively reduced.

The invention discloses an airport traffic flow prediction method based on weather data mining, which comprises the following steps: extracting required weather information from the history data of aselected airport according to preset rules, and identifying the weather information according to preset conditions; Obtain the airport flow statistics data in a specific period of time of the selectedairport, and match the airport flow and weather information, in which, the airport flow is divided into take-off, landing and flying three types; Based on BP neural network, the matching informationof airport traffic is trained and learned respectively, and the influence relationship of different weather types on airport traffic is obtained. The influence relationship is analyzed and verified, and the corresponding BP neural network model is finally obtained. Finally, based on the trained BP neural network model and the forecast weather information, the airport's inflow and outflow are classified and forecasted. The method can effectively solve the normal operation of flights in complex weather and improve the air traffic safety level and efficiency of the terminal airspace.

The invention provides an optimal configuration method for a signal control intersection phase green light time induction interval. According to a traffic flow, a signal scheme time period is divided,and the green time induction interval of each phase stage in each time period is subjected to distribution calculation on the basis of non-motor vehicle and pedestrian street crossing requirements, intersection vehicle passage requirements and traffic management requirements. By use of the method, minimum green light time requirements and maximum green light time requirements in the signal phasetime period are summarized, the street-crossing green light time requirements of non-motor vehicles and pedestrians in periodic time and a locking situation of a traffic control signal phase stage areconsidered, the green light time induction interval of each phase stage in the time period is subjected to optimal configuration, so that a green light time use ratio of the interaction traffic signal is effectively improved, intersection passage efficiency is improved, and a traffic user problem is alleviated.

The invention belongs to the field of daily chemicals, and relates to a scalp multidirectional nursing composition. The scalp multidirectional nursing composition is prepared from the following components: a polyhydroxy humectant with a carbon chain length of C3-C6, pyrrolidone carboxylate, a saccharide isomer, dihydroxypropyl arginine HCl, a bacteriostatic agent, an anti-inflammatory agent and water. The composition is mild in formula, has the effects of moisturizing, properly inhibiting bacteria, relieving inflammation, controlling oil and resisting dandruff, has a good scalp barrier repairing function, can help scalp resist the influence caused by external stimulation, grease peroxidation and surfactant residues, effectively relieves scalp problems such as scalp itching, scalp inflammation and scalp tightness, can soften hair and resist static electricity, and has good elasticity and glossiness.

The invention provides an audio and video decoding system and a decoding method thereof. The system comprises at least one communication module which is used for data exchange between the audio and video decoding system and front-end equipment; at least one decoding module which is electrically connected with the communication module and used for acquiring the required audio and video data from the front-end equipment via the communication module and decoding the audio and video data; at least one interface module which is electrically connected with the decoding module and used for providing multiple audio and video output interfaces and outputting the audio and video data decoded by the decoding module to display equipment; a control module which is electrically connected with the communication module, the decoding module and the interface module and used for dynamically controlling loads of all the modules in a balancing way according to the existing loads of all the current modules in the audio and video decoding system and the loads capable of being borne by the system; and a power supply module which is used for supplying power to the audio and video decoding system.

The invention discloses a drug for treating cervical spondylosis, belonging to the technical field of medicines. The drug comprises 30g of kudzuvine root, 15g of radix clematidis and 15g of zedoary. The drug disclosed by the invention has the advantages of effectively relieving a problem caused by spondylosis, being obvious in curative effect and effectively treating focus fundamentally.

The invention provides an auxiliary alarm device, system and method. The auxiliary alarm device comprises a processor module, and a wireless communication module, a sound-light alarm module and a man-machine interaction module which are connected with the processor module, and is in wireless communication connection with at least one medical alarm source device. The auxiliary alarm method comprises the following steps: receiving alarm information of the medical alarm source device; classifying the alarm information to obtain alarm parameters; presenting an alarm priority and medical care parameters of the alarm information in the form of image-text, sound and/or light according to the alarm mode, and finally sending the alarm feedback of the medical care personnel to the medical alarm source device. According to the auxiliary alarm device and method provided by the invention, a plurality of pieces of alarm information can be classified and filtered, and alarm feedback is provided; and therefore, more emergency alarm information is preferentially provided for a medical staff, and a more comprehensive, safer and more efficient alarm mechanism is provided for intelligent medical treatment.

The invention discloses baking soda toothpaste, which is prepared from the following raw materials in parts by weight: 67.0-67.2 wt% of nanometer sodium bicarbonate powder, 3.0-3.2 wt% of xylitol, 1.6-1.8 wt% of polyethylene glycol, 1.2-1.3wt% of calcium pyrophosphate, 2.8-3.0 wt% of poly (oxypropylene) olefinic ether sodium phosphate having a mass concentration of 30%, 0.2-0.3 wt% of sodium alginate, 0.2-0.3 wt% of guar gum, 0.2-0.3 wt% of stevioside, 0.1-0.11 wt% of sodium fluoride, an appropriate amount of perfume and 4-6% of fatty acid alkanolamide borate and potassium phosphate, with thebalance being water, wherein that weight part ratio of fatty acid alkanolamide ester to potassium phosphate is 3-5:1. The baking soda toothpaste provided by the invention adopts the unique dental baking soda formula, can inhibit dental plaque, reduce gingival swelling, bleeding, alleviate gingival problems, and strengthen gingiva and teeth. Can effectively prevent the formation of dental calculi,remove odor, prevent tooth decay. The baking soda toothpaste provided by the invention has stable property and does not cause baking soda decomposition after long-term storage.

The invention discloses a ginger planting soil conditioner which comprises the following raw materials in parts by weight: 4-9 parts of siliceous petrified powder, 4-9 parts of perlite powder, 3-8 parts of calcium magnesium phosphate fertilizer, 2-6 parts of microbial mixture, 0.3-0.8 parts of fulvic acid, 6-9 parts of perlite powder, 7-15 parts of rapeseed meal, 0.3-0.8 parts of sodium citrate, 5-10 parts of vitamin complex, 4-10 parts of borax, 0.2-0.7 parts of calcium hydroxide, 0.3-0.8 parts of sodium lignin sulfonate, 5-10 parts of plant ash, 3-7 parts of zeolite powder, 1-5 parts of bamboo powder, 4-8 parts of biological straw and 0.3-0.7 parts of disodium octoborate tetrahydrate. The conditioner has the advantages of improving soil properties, facilitating plant growth and achievinghigh and stable yields.

The invention provides a motor rotor and a motor. The motor rotor comprises a rotor core (1). The rotor core (1) is provided with a first installation groove (2) perpendicular to the d axis of the motor and two second installation grooves (3) located in the two sides of the first installation groove (2). A first permanent magnet (4) is arranged in the first installation groove (2). Second permanent magnets (5) are arranged in the second installation grooves (3). The two second installation grooves (3) are symmetrical about the d axis of the motor. An included angle alpha is formed between thefirst installation groove (2) and the second installation grooves (3), and alpha is larger than or equal to 155 degrees and smaller than or equal to 170 degrees. According to the motor rotor providedby the invention, the demagnetization resistance of the motor rotor can be effectively improved, and the output torque of the motor is ensured.

The invention relates to an image super-resolution method based on a cascade network framework and a cascade network, and the method comprises the steps: obtaining a preliminary upsampling result of atarget image based on a basic super-resolution network; and based on the detail refinement network, obtaining a super-resolution image result according to the preliminary up-sampling result. Two networks are cascaded, a task facing a peak signal-to-noise ratio and a task facing subjective feeling are separated and are respectively processed by two models, a basic super-resolution network firstlycompletes preliminary up-sampling, and the result of the preliminary up-sampling ensures content consistency with an original high-resolution image to a great extent; then, a preliminary up-sampling result is sent to a refinement network to further improve sensory loss, and the refinement network has the input of the preliminary up-sampling result, so that the content consistency of the whole super-resolution result is not excessively sacrificed; in addition, the training difficulty of a refinement network and a discriminator is reduced through refinement on a preliminary up-sampling result, the training speed is increased, and the problem of an existing model is effectively relieved.

The invention discloses a transaction processing method and device which can be used in the financial field or other fields, and the method comprises the steps: determining a to-be-processed transaction from transactions corresponding to all accounts in an online banking database in a polling mode, and when each account is polled, determining the to-be-processed transaction according to the to-be-processed transaction; if the numerical value on the transaction quantity counter corresponding to the account does not exceed the current threshold value, N transactions corresponding to the account in the online banking database are selected as the transactions to be processed, if the numerical value on the transaction quantity counter corresponding to the account exceeds the current threshold value, the account is skipped in the polling, and if the numerical value on the transaction quantity counter corresponding to the account exceeds the current threshold value, the N transactions corresponding to the account in the online banking database do not exceed the current threshold value. N is a positive integer; and processing the to-be-processed transaction, and subtracting one from the numerical value on the transaction quantity counter of the account corresponding to the processed transaction for each processed transaction. According to the method, the problem of the hotspot account is effectively relieved, and the situation that the processing speed of a core accounting system is slowed down by the hotspot account is effectively reduced.

The invention relates to a method for synthesizing cyclohexanone by accelerating hydrogenation of aromatic compounds with carbon dioxide. The method comprises the following steps: dissolving CO2 in water to produce H2CO3 molecules, further forming hydrogen bonds through aromatic nitro compounds (such as nitrobenzene), accelerating to be adsorbed onto the surface of metal nanoparticles, activatinghydrogen by the metal nanoparticles, and reducing into corresponding cyclohexanone. According to the method, the greenhouse gas CO2 is effectively utilized, and the wastes are changed into valuable materials. The method disclosed by the invention has the characteristics of being simple in process operation, green, safe and low in cost, can realize large-scale continuous production, and has obviouseconomic benefits and environmental benefits.

The invention discloses a prostate magnet therapy rod assembly and a use method thereof. The prostate magnet therapy rod assembly comprises a first magnet therapy rod and a second magnet therapy rod,wherein the first magnet therapy rod generates a first magnetic field which extends in a length direction of the first magnet therapy rod, a first limiting and abutting part used for limiting the anusinsertion depth of the first magnet therapy rod is arranged on the first magnet therapy rod, and the plane where the first limiting and abutting part is located is at an oblique angle to the first magnet therapy rod; and the second magnet therapy rod generates a second magnetic field which extends in a circumferential direction of the second magnet therapy rod, a second first limiting and abutting part used for limiting the anus insertion depth of the second magnet therapy rod is arranged on the second magnet therapy rod, and the plane where the second limiting and abutting part is located isat an oblique angle to the second magnet therapy rod. Through the first magnet therapy rod and the second magnet therapy rod, blood vessels can be effectively expanded, blood flows can be effectivelyaccelerated, and the problems of deformation and twisting of a urethra of a prostatic part, hyperaemia and dysuria are eased.

The invention relates to a novel compound fertilizer and a preparation method thereof. The novel compound fertilizer is prepared from, by weight, 10-15 parts of ammonium phosphate, 8-12 parts of phosphorus nitrate, 2-6 parts of TBHQ, 3-5 parts of potassium nitrate, 3-5 parts of monopotassium phosphate, 20-25 parts of urea, 3-5 parts of monopotassium phosphate, 2-5 parts of diammonium phosphate, 20-25 parts of rape seed cakes, 10-20 parts of tea seed cakes, 10-20 parts of chicken manure and 3-8 parts of fermentation powder. The novel compound fertilizer is easy in material acquisition, low in cost, sufficient, rich in nutrition component, less prone to causing soil acidification and basification and effective in alleviation of soil problems, absorption capacity of crops is improved, growth acceleration and yield increase are realized, and freeness of caking, easiness in decomposition and absorption, high oxidation resistance, stability improvement and long retention time are realized.

The invention particularly relates to a bedsore-preventing defecation-assisting automatic bed trolley. A first cushion body is installed on the upper surfaces of a seat frame and a back frame. A first pushing frame and a first connecting rod are arranged on the seat frame. A first rotating shaft is arranged on the back frame. The first pushing frame is connected with the first connecting rod. A second connecting rod and a second pushing frame are arranged on the back frame. The second pushing frame is connected with a second connecting rod, the other end of the first pushing frame is connected with the other end of the second pushing frame through a force-bearing flexible belt, the other end of the second connecting rod is connected with a rotating rod, the rotating rod is connected with a second motor, and one end of the second motor is fixed to the back frame. A tough drawstring is arranged on the bottom surface of the first cushion body, one end of the tough drawstring is connected to the first rotating shaft, and the other end of the tough drawstring is connected to the seat frame. The automatic bed trolley has the beneficial effects that through combined use of the back frame, the second connecting rod, the second pushing frame, the rotating rod and the motor, the first cushion body is in an arched state, contact between a human body and the first cushion body is reduced, and therefore the bedsore problem is relieved.

The invention discloses an intelligent traffic management system capable of alleviating traffic congestion. The system comprises a congestion data acquisition module, an upper computer system, a central processing unit and a field data calling module. The field data calling module communicates with the central processing unit through a communication network, and is used for acquiring video information of a congestion site to enable personnel to judge the cause and position of congestion. The congestion data acquisition module communicates with the central processing unit through the communication network. The beneficial effect of the system is as follows: the congestion condition of a certain road section is acquired through a navigation client, the central processing unit immediately acquires video information of a congestion site through the field data calling module after receiving alarm information, the field personnel at the upper computer system judges the cause and position of congestion according to the situation and generates a decision (for example, police at the congestion position is immediately notified to rush to the site for handling the congestion), the police can quickly judge the cause of an accident and handle the accident, and thus, the problem of traffic congestion can be alleviated.

The invention discloses a method for strengthening vanadium extraction from vanadium slags of a converter through calcification. The method comprises the following steps of crushing vanadium-containing slags which are used as raw materials after industrial iron separation, and then performing magnetic separation so as to obtain fine vanadium slag powder; then performing ball milling and activation on the fine vanadium slag powder so as to obtain activated vanadium slags; then adding powdery calcium-containing compound powder to the activated vanadium slags in a matching manner, and performing uniform mixing so as to obtain calcium matching mixed materials; then performing oxidizing roast on the calcium matching mixed materials in an oxidizing roaster, and then performing air cooling and crushing so as to obtain roasted clinker; and leaching the roasted clinker in a weak acid solution so as to obtain a vanadium-containing leaching solution, wherein the vanadium-containing leaching solution is used for subsequent purification and vanadium extraction. Through the adoption of the method disclosed by the invention, the oxidizing roast temperature of the vanadium slags of the converter can be reduced, and the leaching rate of vanadium in the roasted clinker is increased.