51results about How to "Guaranteed excellent performance" patented technology

The invention relates to a rotor unmanned aerial vehicle coverage search flight path planning method for a polygonal region having a no-fly zone, wherein the method comprises the steps: step 1, determining a coverage direction, wherein the direction from a polygon width-corresponding top point to edge is a coverage direction for realizing shortest-path polygon region coverage searching; step 2, transforming a coordinate, taking an X axis of a new coordinate system (OX'Y') as a coverage direction, and making an origin point of the new coordinate system (OX'Y') the same as an origin point of an original coordinate system; step 3, according to the transformed to-be-covered polygon region and obstacle, carrying out Boustrophedon searching unit decomposition; step 4, determining an alternative optical grating line search flight path set of each searching unit; step 5, determining the sequence and the flight path of each searching unit of the unmanned aerial vehicle based on a greedy strategy; and step 6, carrying out coordinate inverse transformation, transforming flight path points into flight path points in the original coordinate system through coordinate inverse transformation, and thus obtaining an original task searching flight path. The method ensures optimal property of understanding while reducing the time consuming of calculation.

The invention discloses a programmable radio frequency down-conversion device which comprises an external clock, an FPGA, a PROM, a TDM digital tuner chip, an AGC module and an external filtering module; wherein the external clock is used for providing the clock needed in the work of the FPGA, the PROM and the TDM digital tuner chip. The frequency conversion device can realize frequency down-conversion of signals with 51-858 MHz, and is internally integrated with a local oscillator and an SAW filter; an output end is processed by filtering and can output an intermediate frequency signal by difference; and an AGC compensating device and an external filter circuit are arranged outside the output; therefore, the signal performance can be greatly improved. The device has the characteristics oflow cost and high signal output performance, and has the greatest characteristic of a method of combining a special chip module and an FPGA programming device, and is added with an AGC automatic gaincontrol module and the external filtering module, thus ensuring the excellent performance of signal output.

The invention provides a multi-UCAV on-line striking target allocation method of an opposition-based genetic algorithm(GA). The multi-UCAV on-line striking target allocation method is characterized in that design variables capable of satisfying the constraint of the multi-UCAV on-line striking target allocation method of unequal dimension values can be designed, and the customized improvement of the standard genetic algorithm can be carried out by aiming at the multi-UCAV on-line striking target allocation problem, and then the opposition idea can be introduced into the genetic operation, and the diversity of the population can be increased. The method provided by the invention is advantageous in that the opposition idea processing mechanism and the genetic algorithm can be combined together, and the problems of the conventional algorithm such as locally optimal solution and long time during the solution process can be prevented, and therefore the provided method has the strong global convergence capability, and the problem of the prior art of the low efficiency during the solution of the multi-UCAV on-line striking target allocation can be solved.

The invention relates to a Chinese medicinal preparation for treating vaginitis and a preparation method thereof. The Chinese medicinal preparation is prepared by extracting and purifying hawthorn cores serving as a medicinal raw material according to a certain process and then mixing with pharmaceutically acceptable auxiliary materials. The Chinese medicinal preparation has the characteristics of simplicity and feasibility in preparation process, safety, effectiveness and remarkable pharmacological effect.

The invention relates to a Chinese medicinal preparation for treating vaginitis and a preparation method thereof. The Chinese medicinal preparation is an oral Chinese medicinal preparation prepared by extracting and purifying Chinese hawthorn seed serving as a raw material according to a certain process and adding pharmaceutically-acceptable auxiliary materials. The Chinese medicinal preparation has the characteristics that a preparation process is simple, feasible, safe and effective, and a pharmacological effect and a medicinal effect are obvious.

The invention relates to a method for determining the mixing amount of an asphalt mixture regenerant based on the oil absorption rate of coarse aggregate. The method mainly comprises the following steps: screening the recycled aggregate to obtain coarse aggregate in the aggregate, separately testing the apparent gross volume relative density and the apparent relative density of the coarse aggregate, calculating the absorbed asphalt content of the coarse aggregate according to the composition proportion of the coarse aggregate, and then subtracting the total old asphalt content on the basis toobtain the reference asphalt amount for determining the amount of the regenerant; then carrying out an old asphalt regeneration performance test, and preliminarily determining the amount of a regenerant; and finally, comprehensively evaluating the pavement performance of the regenerated asphalt mixture by preparing the regenerated asphalt mixture, and finally determining the amount of the regenerant. According to the method, the excellent performance of the recycled asphalt pavement can be guaranteed, and the recycling level of waste pavement materials and the driving safety of the recycled asphalt pavement are improved.

The invention relates to a Chinese herbal preparation for treating vaginitis and a preparation method thereof. The Chinese herbal preparation for treating the vaginitis is prepared by that the hawthorn seed serves as a raw material, and the hawthorn seed and pharmaceutically-acceptable auxiliary materials are mixed after the hawthorn seed is extracted and refined according to a certain technology. The Chinese herbal preparation disclosed by the invention has a simple and feasible preparation technology and obvious pharmacology and drug efficacy action and is safe and effective.

The invention discloses an agricultural seed storage device. The agricultural seed storage device comprises a box body, the interior of the box body is divided into a disinfection chamber and an object storage chamber through a separation plate, ultrasonic disinfection lamps are fixed to the side walls of both opposite sides inside the disinfection chamber, multiple bottle grooves are uniformly formed in the inner surface of the bottom of the object storage chamber, seed bottles are clamped to the bottle grooves, labels are attached to the surfaces of the seed bottles, bottle lids are in threaded connection with the tops of the seed bottle, the tops of the bottle lids are in a grid shape, an air pipe is communicated with the side, close to the object storage chamber, of the box body through a through hole, and a stepping air blower is communicated with the end, away from the box body, of the air pipe. The agricultural seed storage device is simple and reasonable in structural design, and convenient to operate; seeds can be disinfected and sterilized, the fine properties of the seeds is guaranteed, the environment in the box body is improved, the seeds are conveniently stored, it isavoided that the storage of the seeds is influenced and the phenomenon of mildew is caused due to humid air, the seed storage device is conveniently moved, and the labor is saved.

The invention discloses silica gel for filling a chest pad and a preparation method of the silica gel. The silica gel comprises the following components in parts by weight: 100 parts of a base material, 3-8 parts of a crosslinking agent, 0.1 part of a catalyst and 0.02 part of an inhibitor. According to the silica gel for filling the chest pad provided by the invention, the base material comprises three different linear siloxane polymers at tail ends in synergistic effect, so that the excellence of the final performance of the product is ensured. The silica gel for filling the chest pad provided by the invention has the characteristics of good flexibility, high plasticity and no oil leakage, is low in cost and simple in preparation method, and has a very high economic value.

The invention discloses a display driving circuit, and relates to the technical field of display equipment. According to the main technical scheme, the display driving circuit comprises a power module, light-emitting assemblies and a control module, and the power module provides positive and negative driving voltages; the plurality of light-emitting assemblies are arranged in a matrix manner, theplurality of light-emitting assemblies are all electrically connected with the power supply module, and the driving voltage polarities of the light-emitting assemblies in adjacent rows/adjacent columns are opposite; the control module is electrically connected with the power module and is used for controlling the power module to provide a positive/negative driving voltage for the light-emitting assemblies in the corresponding rows/columns; and the control module receives an image signal, is electrically connected with the plurality of light-emitting assemblies and is used for providing an equal gate voltage/source voltage for the light-emitting assemblies in the same row/column according to the image signal.

The invention discloses a zero-energy-consumption solar annular thermoelectric sunshade, comprising an umbrella fabric (6), an umbrella slotware (7), an umbrella pole (4) and an umbrella handle, wherein the umbrella slotware (7) of the umbrella fabric (6) is arranged at an upper end of the umbrella pole (4), and the umbrella handle is arranged at a lower end of the umbrella pole (4). A thin film solar panel (1) is arranged on the umbrella fabric (6); the umbrella pole (4) is a hollow structure, a pore is formed in the upper end, and a horse throat tube (5) is sleeved on an outer ring of the pore; a semiconductor chilling plate I (21) is installed at the middle of the umbrella pole (4); a semiconductor chilling plate II (22) is installed on a lower surface of the umbrella fabric; the semiconductor chilling plate I and II are electrically connected to the thin film solar panel (1); a centrifugal exhaust fan (3) is arranged in the umbrella handle, and an air outlet of the exhaust fan (3)communicates with a lower port of the umbrella pole (4); and the exhaust fan (3) is electrically connected to the thin film solar panel (1). The zero-energy-consumption solar annular thermoelectric sunshade disclosed by the invention can create a relatively closed mobile local refrigeration environment to improve the somatosensory comfort of human body.

The invention relates to a traditional Chinese medicament for curing cough and a preparation method thereof. 100 parts of ephedra, 10 parts of fritillaria cirrhosa, 50 parts of loguat leaves, 50 parts of radix asteris, 60 parts of pericarpium papaveris, 50 parts of scutellaria baicalensis, 50 parts of liquorice and 0.3 part of menthol crystal are taken as raw materials of the traditional Chinese medicament. The traditional Chinese medicament is prepared by the raw materials after extraction for purification according to a certain process and auxiliary materials accepted by pharmaceutics. The traditional Chinese medicament for curing the cough has the advantages of being simple, practicable, safe and effective in preparation process and remarkable in pharmacodynamic effects.

The invention relates to a Chinese medicinal preparation for treating vaginitis and a preparation method thereof. According to the Chinese medicinal preparation, hawthorn fruit kernels are used as medicinal raw materials, and after being extracted and purified according to a certain process, the hawthorn fruit kernels are prepared into the Chinese medicinal preparation with a pharmaceutically-acceptable auxiliary material. The Chinese medicinal preparation has the characteristics of simple preparation process, safety, effectiveness and obvious pharmacological and medicinal effects.

The invention relates to a traditional Chinese medicament for curing cough and a preparation method thereof. 100 parts of ephedra, 10 parts of fritillaria cirrhosa, 50 parts of loguat leaves, 50 parts of radix asteris, 60 parts of pericarpium papaveris, 50 parts of scutellaria baicalensis, 50 parts of liquorice and 0.3 part of menthol crystal are taken as raw materials of the traditional Chinese medicament. The traditional Chinese medicament is prepared by the raw materials after extraction for purification according to a certain process and auxiliary materials accepted by pharmaceutics. The traditional Chinese medicament for curing the cough has the advantages of being simple, practicable, safe and effective in preparation process and remarkable in pharmacodynamic effects.

The invention relates to the technical field of dam concrete mixing and pouring, and discloses a dam concrete mixing material for water conservancy projects. The dam concrete mixing material consistsof the following raw materials in parts by weight: 90-120 parts of low-heat Portland cement, 120-140 parts of fine sand of 100-120 meshes; 100-120 parts of medium-coarse sand of 60-80 meshes, 20-40 parts of coarse sand of 10-20 meshes, 10-20 parts of silicon oxide particles, 4.5-6 parts of silica fume powder, 6.6-8.6 parts of an additive and the balance of water. According to the dam concrete mixing material for water conservancy projects and a stirring and pouring construction method, strength of the whole concrete can be better improved by utilizing sand with different grain diameters; the purposes of high permeability resistance and frost resistance can be achieved through the match of the additive; excellent performance of Yellow River dams in preventing river water erosion is guaranteed through a strict construction technology, and safety of the dams is ensured.

The invention discloses a solvent mixing device for petroleum asphalt production. The solvent mixing device specifically comprises a working frame which is provided with a supporting rack body, a butt joint mounting frame arranged above the working frame, and a supporting foot stool arranged at the bottom of the working frame; a mixing box which is provided with a mixing box body and a butt joint sleeve frame arranged on the side of the upper part of the mixing box; and a pretreatment box which is provided with a side treatment box body and a drainage pipe arranged on the inner side of the pretreatment box. The invention relates to the technical field of petroleum asphalt production. According to the solvent mixing device for petroleum asphalt production, the problems that a solvent cannot be mixed and stirred in multiple directions, and the produced solvent is non-uniformly mixed and is easy to adhere during mixing are solved, a device arranged at the bottom of the mixing box is matched with an internal mixer, so that the solvent at the bottom can be prevented from adhering, and the solvent can be uniformly mixed and rolled to flow upwards again during high-speed rotation.

The invention relates to a main rotor shaft of a single rotor unmanned aerial vehicle. The main rotor shaft comprises a main shaft and an auxiliary shaft, wherein the main shaft and the auxiliary shaft are cylindrical; the main shaft comprises a shaft head, a shaft body and a shaft tail; the diameter of the shaft tail is smaller than that of the shaft body; the shaft head and the shaft tail are spline shafts; an inner hole formed along the direction of a central shaft is formed in the main shaft; the auxiliary shaft comprises a body and a connecting part and a fixing part arranged at two endsof the body; the body of the auxiliary shaft is connected to the inner hole in transition fit; the concentricity of the main shaft and the auxiliary shaft is 0.01mm; the fixing part is connected to the inner hole in the shaft tail in transition fit; nitriding layers are arranged on the surfaces of the shaft head and the shaft tail; and chromium coatings are arranged on the surface of the shaft body, the surface of the inner hole and the surface of the auxiliary shaft. The invention provides the main rotor shaft of the single rotor unmanned aerial vehicle simple in structure, high in precisionand impact resistant. Moreover, the main rotor shaft is excellent in processing technology and high in precision and meets the high standard demand.

The invention discloses a method for screening a high-yield strain of a biological dust suppressant, which utilizes the hemolysis characteristic in the process of producing the dust suppressant by the strain and the capability of synthesizing the dust suppressant by the strain for screening, and mainly comprises two parts of screening the high-yield strain and verifying the screened strain. The method comprises the following steps: fully diluting original strains subjected to enlarged culture, inoculating the original strains to a blood agar plate for culture, quantitatively screening the strains according to the sizes of hemolytic rings formed on the blood agar plate by the strains, carrying out fermentation culture on the strains with larger hemolytic rings, extracting the biological dust suppressant subjected to fermentation culture by an acidification precipitation method, and purifying the extracted biological dust suppressant to obtain the biological dust suppressant. And measuring the final dust suppressant yield synthesized by different strains to determine the optimal high-yield strain. Screening is carried out according to the characteristics of the strains, green and environment-friendly culture is selected, the final yield serves as the evaluation standard, the screening method has the advantages of being simple, green and environment-friendly in process and high in screening efficiency, and a new method is provided for screening of high-yield strains in the biological dust suppressant preparation process.

The invention discloses a method for preparing an ordered porous TC4 alloy. TiH2 powder and Al-V alloy powder are mixed according to the standard ingredient proportion of the TC4 alloy, a template agent acetone solution is added, and high-energy ball milling is carried out; then vacuum hot pressing sintering is carried out, and finally the ordered porous TC4 alloy is obtained. According to the method, the template agent and the TiH2 powder, multiple ordered holes can be formed in the sintering process, holes in the alloy and the surface of the alloy can be effectively cleaned through hydrogenreleased by TiH2 in the dehydrogenation process, the good performance of the produced product is guaranteed, and the production process of the product is effectively shortened; and the pore morphologyof the titanium alloy is reasonably improved and optimized.

The invention discloses BMW grey finishing coat for a motorcycle fuel tank. The BMW grey finishing coat is prepared from a component A and a component B, and the mass ratio of the component A to the component B is (10-20):1. The component A is prepared from, by weight, 3-8 parts of pearl powder, 1-2 parts of iron oxide red, 1.5-2.5 parts of aluminum-silver pulp, 10-20 parts of diluent, 65-85 parts of hydroxy acrylic resin, 0.1-1 part of anti-settling agent and 0.5-1.5 parts of flatting agent. The component B is a polyurethane curing agent. A preparation method of the BMW grey finishing coat for the motorcycle fuel tank comprises the following steps that 1, a base material is prepared; 2, mixed pigment filler is prepared; 3, the base material in the step 1 is added into the mixed pigment filter in the step 2, and the BMW grey finishing coat for the motorcycle fuel tank is obtained after uniform mixing; 4, the component B is prepared. The BMW grey finishing coat for the motorcycle fuel tank has the advantages of being good in performance and color stability, low in cost and the like.

The invention provides a shell, a manufacturing method of the shell and a household appliance. The shell comprises a body, a first foaming layer and an isolating layer, wherein the first foaming layerand the body are integrally formed in a foaming manner, the isolating layer is arranged between the body and the first foaming layer, and adhesive force of a material of the isolating layer is largerthan adhesive force of a material of the first foaming layer. According to the shell, the isolating layer is arranged between the body and the first foaming layer, the adhesive force of the materialof the isolating layer is larger than the adhesive force of the material of the first foaming layer, thus the isolating layer and the body have high adhesive force, the situations that in the relatedtechnology, a first foaming layer directly makes contact with a body, due to vacuoles between the first foaming layer and the body, foam flowing cracks and the difference between shrinkage coefficients of the first foaming layer and the body, appearance of the body is poor can be avoided, and the appearance quality of the body is improved greatly.