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80results about How to "Overcome cumbersome" patented technology

Method for objectively and quantifiably evaluating noise fret degree in vehicle based on auditory model

The invention relates to a method for objectively and quantifiably evaluating noise fret degree in a vehicle based on an auditory model, in particular to an evaluation method of psychoacoustics and vehicle sound quality. The method comprises the following steps: designing a dummy head model; imitating a processing mechanism of the middle ear and the inner ear of a human body to the sound by usingan auditory peripheral calculation model; collecting vehicle noise signals under the working conditions of uniform, accelerated and idle speed; pre-treating the noise sample and processing the loudness in specification; obtaining a psychoacoustics parameter by using a sound quality calculation model; obtaining subjective evaluation result test data by using a grouped and paired comparison method;calculating and painting a correlated scatter plot chart between each parameter and the ranking value of the subjective evaluation result; and analyzing and calculating to obtain the objectively quantifiable model of the subjective fret degree under each working condition. The invention can realize the psychoacoustic parameter calculation of objectively evaluating the sound quality with differentvehicle types, gears and speeds, wherein the calculated value has good pertinence and consistency with the evaluated result of the subjective evaluation method. The invention has stable evaluated result and high reliability, and can improve the sound quality and competitiveness of vehicles combined with the design of new CAE cars.
Owner:JILIN UNIV

Equipment for enabling copper pipe to pass through fin of condenser

The invention discloses equipment for enabling a copper pipe to pass through a fin of a condenser. The equipment comprises a support, as well as a push plate driving system, a copper pipe collector, a fin collecting disc and a traction device which are sequentially positioned on the support, wherein the copper pipe is placed on a supporting base of the copper pipe collector, and clearance layers formed between clapboards or partition posts are stacked; a push plate passes through the upper part of the supporting base which can reciprocate up and down so as to push the copper pipe into the fin hole of the fin collecting disc; meanwhile a draw rod enters into the fin hole from the other side of the fin collecting disc under the effect of a guide mechanism, so as to draw the copper pipe, and a drawing head is inserted into the opening end of the copper pipe; when the draw rod is retreated from the fin hole, the copper pipe is synchronously guided into the fin hole, after that, the push plate and the draw rod are reset, the upper-layer copper pipe orderly falls to the supporting base so as to be subjected to the next round of pipe passing. The equipment is simple in operation and high in stability and safety, and can be used for improving the pipe passing efficiency and the alignment accuracy, reducing the equipment stagnation period in a pipe passing process and reducing the human cost and the equipment loss.
Owner:广州绅特模具制造有限公司

A dynamic partition electricity price calculation method based on partition clustering analysis

The invention discloses a dynamic partition electricity price calculation method based on partition clustering analysis. The method comprises constructing a direct-current optimal power flow optimization target, determining a power system operation constraint condition, solving to obtain optimized hydroelectric output, and then solving node electricity price, conventional unit and new energy unitoutput, power flow data, an active dual factor and node injection power; generating an effective clustering attribute; determining an optimal clustering number; generating a dissimilarity matrix through standardization processing and a Euclidean distance method, and dividing a clustering algorithm to realize clustering; dividing each electricity price area according to the clustering result, and finally determining the unified pricing of each area; feeding back a calculation result of the regional electricity price, and carrying out settlement on market participants in each region according tothe regional electricity price. According to the invention, the electricity price of each subarea can be determined, and finally, each node in the same area is settled in a unified pricing manner, sothat the practical operability is improved, and the demand of obtaining relatively stable price by most users is met.
Owner:XI AN JIAOTONG UNIV

Biological age step-by-step predication method based on support vector machine

The invention discloses a biological age step-by-step predication method based on a support vector machine, and relates to the biological age step-by-step predication method based on the support vector machine. The invention aims to solve the problems that a conventional biological age predication method is low in predication efficiency, low in accuracy, high in cost, and complex. According to the technical scheme, the biological age step-by-step predication method comprises: step I, preparing a biological age data set; step II, distinguishing a biological sample with known ages from a biological sample with unknown ages; step III, carrying out inter-group classifying; step IV, generating a corresponding support vector machine model; step V, establishing an optimal support vector machine model; step VI, establishing an optical characteristic sub set; step VII, obtaining the group type of an age group corresponding to the biological sample with known ages in the test set; step VIII, carrying out inter-group classifying; step IX, generating an inter-group classified support vector machine model; and step X, obtaining the exact age of a test set sample in certain age group. The biological age step-by-step predication method is applied to the biological age predication field.
Owner:HARBIN INST OF TECH

LAMP detection primer composition for phytophthotacactorum, as well as LAMP detection kit and LAMP detection method of LAMP detection primer composition

The invention discloses an LAMP detection primer composition for phytophthotacactorum, as well as an LAMP detection kit and an LAMP detection method of the LAMP detection primer composition. The LAMP detection primer composition consists of a positive inner primer FIP, a reverse inner primer BIP, a positive outer primer F3, a reverse outer primer B3 and a reverse loop primer LB; detailed sequences of all the primers are as follows: FIP: 5'-TCTGGGCACAACCGCAAAAA-TTTGCGAGCTCCAGATTTCC-3'; BIP: 5'-AATCCGTACGATCGAGCTGGAC-ACACGCCACGTCTGCT-3'; F3: 5'-TTCTGCGCTAGGCGACC-3'; B3: 5'-CACACAAGTGGACCGTTAG3'; LB: 5'-GGAAAGACCATCAAGCTCCAGAT-3'. The detection method disclosed by the invention is high in accuracy, high in specificity, convenient to operate and good in practicability; constant-temperature amplification is realized; meanwhile, a novel technology platform is provided for detection of the phytophthotacactorum; the detection method can be applied to high-sensitivity rapid detection of the phytophthotacactorum; simultaneously, pathogens can be identified in initial stage of invasion of diseases, and the phytophthotacactorum soil of a field can be detected. The LAMP detection primer composition for the phytophthotacactorum, as well as the LAMP detection kit and the LAMP detection method of the LAMP detection primer composition, disclosed by the invention, play an important role in epidemic treatment caused by the phytophthotacactorum, reduction of sightless usage of pesticides, reduction of production cost and reduction of environmental pollution caused by the pesticides as well.
Owner:瑞测精准医学检测(上海)有限公司

Method for preparing artificial seeds of submerged plant, vallisneria natans

The invention discloses a method for preparing artificial seeds of a submerged plant, vallisneria natans. The method comprises the following steps: (1) washing seedlings of vallisneria natans by water to remove plankton on the surfaces of the seedlings; (2) cutting plant leaves and long roots, and washing remaining tail stems and few roots of the plant by distilled water; (3) putting the washed remains in a gel solution formed by mixing calcium chloride, starch, a Hoagland's nutrient solution of anhydrous magnesium sulfate and naphthylacetic acid; and (4) dropwise adding the gel solution containing the buds of vallisneria natans into a solution of sodium alga acid and magnesium sulfate for carrying out a curing reaction by a dropper, taking out the buds after the curing reaction, and rinsing by sterile distilled water, thereby obtaining the artificial seeds of vallisneria natans after the reaction is ended. According to the method, plant tissue culture is omitted, the method does not need to be performed under sterile conditions, and thus the preparation processes are greatly reduced; the Hoagland's nutrient solution serves as artificial endosperm, the cost is greatly reduced, the period is shortened, and the survival rate is high. Moreover, a hollow capsule coating system is adopted, a liquid envelope is formed around a propagule, and thus the plant propagule is well protected.
Owner:LINGNAN LANDSCAPE +1

Breeding method for rape

InactiveCN103461098AShort production application cycleEasy to operatePlant genotype modificationHybrid seedBest disease
The invention discloses a breeding method for rape. The breeding method comprises the steps as follows: selecting a rape variety Zhenyou No.5 which is planted in a large area in production, and has the characteristics of high yield, good disease resistance and lodging resistance, outstanding comprehensive characters and wide applicability, and performing purification and rejuvenation; collecting and screening an excellent variety (line) which has relatively far genetic relationship with the Zhenyou No.5, and has the characteristics of double-low quality, good yielding ability, outstanding stress resistance and high oil content and performing purification and rejuvenation; taking the Zhenyou No.5 purification and rejuvenation line as a female parent and taking the screened distant related purification and rejuvenation line as a male parent, and performing castration and hybridization manually; harvesting seeds and planting in the same year to perform yield identification, performing field screening to obtain hybrid seeds with good comprehensive characters, high yield and strong advantages, and performing indoor seed test and quality determination in a combination way on the selected target combination; adopting a chemical hybridizing agent to perform chemical hybridizing on the Zhenyou No.5, and planting the male parent to perform seed production, so as to product hybrid seeds; performing a multi-point test on the produced seed target combination through chemical hybridizing, and testing the advantages and the wide adaptability of the produced seed target combination; performing pre-production, demonstration and popularization.
Owner:江苏丰源种业有限公司

Chopping board round edge processing machine and chopping board round edge processing method

The invention relates to the technical field of chopping board processing, and discloses a chopping board round edge processing machine and a chopping board round edge processing method. The chopping board round edge processing machine comprises a bracket, a locating device and a cutter device; the bracket comprises a tray used for placing a chopping board and a tray bracket used for supporting the tray; the locating device comprises an ejector pin and an ejector pin lifting mechanism; the ejector pin is arranged above the tray; the ejector pin lifting mechanism is connected with the ejector pin and is used for driving the ejector pin to move up and down; the cutter device comprises a milling cutter and a milling cutter rotating mechanism used for driving the milling cutter to rotate around the self center axis; the milling cutter is arranged at one side of the tray, at least one out of the milling cutter and the tray can translate relative to the other one; when the round edge of the chopping board is processed, the milling cutter makes circular motion along the horizontal direction around the tray, and/or the tray rotates around the self center axis. The chopping board round edge processing machine is capable of automatically cutting the round edge of the chopping board, the problems that the existing manual chopping board round edge processing method is complicated in process, low in efficiency and poorer in product quality can be solved, and the working efficiency is greatly improved.
Owner:泰州市海鑫高新技术投资发展有限公司

Weather radar levelness automatic measuring system

PendingCN112505706ARealize automatic measurementRealize long-term automatic non-contact measurementTransmission systemsIncline measurementWeather radarSide lobe
The invention discloses a weather radar levelness automatic measuring system which comprises an on-duty device, an antenna pedestal levelness measuring device, a feed source levelness measuring deviceand a wireless communication module. The on-duty device is used for sending an awakening signal at set time; the antenna pedestal levelness measuring device is used for starting to measure the antenna pedestal levelness in different directions when the pitch angle is 0 degree according to the wake-up signal; the feed source levelness measuring device is used for starting to receive a radar sidelobe radiation signal according to the wake-up signal and calculating the feed source levelness according to the radar sidelobe radiation signal; and the wireless communication module is used for sending the levelness of the antenna pedestal and the levelness of the feed source in different directions to an upper computer for display. By arranging the antenna pedestal levelness measuring device andthe feed source levelness measuring device, the feed source levelness and the antenna pedestal levelness in different directions can be automatically measured, and the problems of long time, complicated process and high labor intensity of traditional measurement are solved.
Owner:CMA METEOROLOGICAL OBSERVATION CENT
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