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32results about How to "Broad economy" patented technology

High metastatic potential hepatoma cell line capable of steady autophagy indication, and establishment method and application method thereof

InactiveCN102115730AHigh metastatic potentialDynamic observation of autophagy changesMicrobiological testing/measurementMicroorganism based processesMorphological filterIn vivo
The invention belongs to the field of biomedical science, and aims to provide a high metastatic potential hepatoma cell line capable of steady autophagy indication, and an establishment method and an application method thereof. Lentivirus expression vectors containing EGFP (enhanced green fluorescent protein)-LC3 (light chain 3) autophagy reporter genes are constructed and used to infect hepatoma cells with high metastatic potential, so that host cells can express the EGFP-LC3 steadily and efficiently and indicate autophagy changes of the hepatoma cells steadily. To apply the cell line, metastasis research models can be established in vitro and in vivo for the observation on autophagy changes during metastasis, and the cell autophagy changes can be analyzed rapidly and quantitatively by adopting an image analysis method based on Top-hat operators and morphological filter. The high metastatic potential hepatoma cell line has the characteristics that autophagy indication is conducted steadily, reliably and sensitively in a real-time manner, the metastasis occurs definitely, the autophagy is quantified rapidly and accurately, the operation is simple and convenient, and the like, and can greatly facilitate correlation study on autophagy and metastasis.
Owner:ZHONGSHAN HOSPITAL FUDAN UNIV

Pollen-specific promoter and expression vector and application thereof

The invention discloses a pollen-specific promoter and an expression vector thereof. Experiments show that the promoter can drive efficient and specific expression of a target gene in the pollen of transgenic rice. The promoter of the invention can be used for functional analysis and identification of genes related to growth and development of plant pollen, as well as creation of plant male sterile lines, prevention of plant transgenic drift, and the like. Especially, the promoter has an important application value in creation of male sterile lines of rice and other gramineous crops and utilization of heterozygous advantages.
Owner:HUAZHONG UNIV OF SCI & TECH

Anagrus nilaparvatae attractant

The invention discloses an anagrus nilaparvatae attractant. The anagrus nilaparvatae attractant comprises the following components in the weight ratio of gaultherolin to cis-3-hexenoicaldehyde to linalool to cis-3-hexenylacetate to liquid paraffin to 2,6-ditertiary butyl p-cresol to 2-hydroxy-4-methoxy benzophenone of 0.01-0.10:0.01-0.10:0.01-0.10:0.01-0.10:0.2-2:0.01-0.1:0.01-0.1. The anagrus nilaparvatae attractant has induction effect on female adult of the important natural enemy, namely the anagrus nilaparvatae, of rice planthopper at egg stage, so that the number of the anagrus nilaparvatae population is reduced and damage to rice plants is reduced. The anagrus nilaparvatae attractant has the characteristics of low cost, high efficiency, environmental friendliness, safety to people and livestock and the like.
Owner:ZHEJIANG UNIV

Polarization synthetic aperture radar calibration method based on natural bare soil

The invention discloses a polarization synthetic aperture radar calibration method based on natural bare soil. The method comprises the steps that the crosstalk and cross polarization channel imbalance parameters of a POLSAR radar image are estimated and removed at first; then, the POLSAR radar image is parted in the distance direction and the azimuth direction; finally, an optimization function is built with the low spirochete ingredient of real soil as an optimization object, and imbalance of a same polarization channel is solved through the characteristic that blocks in the same distance direction have the identical unknown numbers. The weak scattering characteristic of the spirochete of the natural bare soil is utilized, calibration is carried out on emission and receiving distortion matrixes existing in a POLSAR radar system, biased observed values are re-calibrated to be a real scattering matrix, and powerful guarantees can be provided for a radar in the application aspects of territorial resources surveys, natural disaster emergency responses and the like.
Owner:WUHAN UNIV

Normal-low pressure high-low temperature human body thermal comfort experiment environment cabin

The invention, which belongs to the field of building heating-ventilation air conditioners, relates to a normal-low-pressure high-low-temperature human body thermal comfort experiment environment cabin comprising an environment cabin body, a pressure control system, a temperature and humidity control system, a fresh air control system, an oxygen concentration control system, an illumination control system, an environment monitoring and controlling system and a human body physiological parameter measuring system. The pressure control system, the temperature and humidity control system, the fresh air control system, and the oxygen concentration control system are arranged at the outer side of the environment cabin body; and the illumination control system, the environment monitoring and controlling system and the human body physiological parameter measuring system are arranged in the environment cabin body. The pressure control system is mainly formed by sequentially connecting a vacuumpump and a vacuum tank with the environment cabin body. The temperature and humidity control system is mainly formed by sequentially connecting a direct evaporation surface cooling section, an electric heating section, a fan section and a humidifying section with the environment cabin body. The fresh air control system is mainly formed by sequentially connecting a filter, a dehumidifier, a gas-gasheat exchanger and a silencer with the environment cabin body.
Owner:INST OF DEFENSE ENG ACADEMY OF MILITARY SCI PLA CHINA

S-type pitot tube coefficient calibration method based on CFD numerical calculation

The invention discloses an S-type pitot tube coefficient calibration method based on CFD numerical calculation. The S-type pitot tube coefficient calibration method comprises the steps of constructionof a calibrated S-type pitot tube and a three-dimensional geometric model of a calibration wind tunnel, generation of a calculation grid, solving of a Fluent solver, result post-processing and S-typepitot tube coefficient calculation. According to the invention, a CFD numerical simulation method is adopted to fully consider the influence of the addition of the S-type pitot tube on the flow fieldin the wind tunnel; the complexity of a flow field around the S-shaped pitot tube is considered; the problem of high investment in the original S-shaped pitot tube real-flow test is solved; and the efficiency is low, the real flow mark timing is accurately reproduced; the flow field in the whole wind tunnel and the surrounding flow field form of the S-shaped pitot tube are formed; Therefore, theaccurate calculation of the S-type pitot tube coefficient is realized, a simple, efficient and low-price method is provided for the calibration of the S-type pitot tube in the future, the design costof the new S-type pitot tube and the calibration cost of the S-type pitot tube coefficient in use are greatly reduced, and the application prospect and the economic value are wide.
Owner:SHANGHAI INST OF MEASUREMENT & TESTING TECH

Scale insect and reptile attractive toxicant and application

ActiveCN105746571ANot to be harmedLow costBiocidePest attractantsScale insectThujene
The invention discloses scale insect and reptile attractive toxicant and application. The scale insect and reptile attractive toxicant mainly comprises the following components in parts by weight: 2-20 parts of methyl salicylate, 0.1-2 parts of linalool, 0.1-3 parts of beta-thujene, 1-5 parts of alpha-terpilenol, 0.5-8 parts of leaf aldehyde, 0.1-2 parts of (1,1-dimethyl ethyl)-4-metoxyphenol, 1-5 parts of magnesium aluminum silicate, 2-10 parts of ethanol, 2-15 parts of tween, 1-20 parts of 20% high-efficiency cyhalothrin, 10-20 parts of water and 1-5 parts of additives. The scale insect and reptile attractive toxicant is a slow-release substance with special smell, scale insects and reptiles can be attracted to crawl to insect glue and then can be killed by insecticide, and then plants can be prevented from being damaged by the scale insects. The scale insect and reptile attractive toxicant disclosed by the invention has the characteristics of low cost, high efficiency, good environment-friendliness, safety to humans and livestock and the like, is simple in preparation method and particularly applicable to prevention and treatment on scale insects in frost fruit, and has great economical, social and ecological benefits.
Owner:INST OF PLANT PROTECTION FAAS

Brown rice planthopper insect repellent as well as preparation method and application thereof

The invention discloses a brown rice planthopper insect repellent as well as a preparation method and application thereof. The brown rice planthopper insect repellent comprises the following components by weight: 1-80mg of pepper extract, 1-80mg of water hyacinth extract and 0.01-0.10mg of farnesene which are dissolved in each ml of methanol solvent. According to the invention, the insect repellent prepared from the methanol extract of plants and a volatile matter preparation can repel the feeding of female brown rice planthopper adult insects and nymph and the laying of the female adult insets, thereby reducing the hazard and the population quantity of the brown rice planthopper insect. The insect repellent has the characteristics of low cost, high efficiency, environment friendliness, no harm to human beings and livestock and the like and broad industrial prospect. With the simple preparation method, the insect repellent is especially suitable for non-polluted production of rice and has broad economic, social and biological benefits.
Owner:ZHEJIANG UNIV

Preparing method of partly-oxidized SnS2 sheet and product and application of sheet

ActiveCN109133158AExcellent photocatalytic reduction of CO <sub>2</sub> Performance to COEfficient photocatalytic reductionTin compoundsPhysical/chemical process catalystsPolymer scienceSolvent
The invention discloses a novel method for preparing a partly-oxidized SnS2 sheet through a hydrothermal method and a product and application of the sheet. More specifically, the method includes the steps of sequentially dissolving dodecyl benzene sulfonate, soluble tin salt and L-cysteine with the mass ratio of (3-5):1:(2-4) in a mixed solvent of water and ethylene glycol with the volume ratio of5.5:1 to 1:4.5 to be mixed, carrying out a reaction in a sealed reactor at 150-170 DEG C, and finally conducting separating, washing and drying to obtain the partly-oxidized SnS2 sheet. The obtainedpartly-oxidized SnS2 sheet can be used for photocatalytically reducing CO2 into CO. The partly-oxidized SnS2 sheet obtained through the method has more excellent performance of photocatalytically reducing CO2 into CO. Through the partly-oxidized SnS2 sheet obtained through the method, carbon dioxide can be efficiently and photocatalytically reduced at normal temperature and normal pressure, and the speed of generating CO from CO2 under the illumination of visible light is about three times that of an unoxidized SnS2 sheet.
Owner:UNIV OF SCI & TECH OF CHINA

Attractant for Anagrus nilaparvatae (natural enemies of rice planthoppers) for effectively controlling quantity of rice planthopper adults

The invention discloses an attractant for Anagrus nilaparvatae (natural enemies of rice planthoppers), which comprises components including gaultherolin, cis-3-hexenal, liquid paraffin, 2, 6-di-tert-butyl-p-cresol and 2-hydroxy-4-methoxybenzophenone in a weight ratio of (0.01-0.10): (0.01-0.10):(0.2-2):(0.01-0.1):(0.01-0.1). In the invention, the attractant is made by artificially synthetic pest attracting volatile matters and can attract female adults of Anagrus nilaparvatae which are important natural enemies of rice planthoppers in ovigerm stage to reduce the quantity of rice planthopper colonies and reduce the damage of the rice planthoppers. The attractant has the characteristics of low cost, high efficiency, environmental friendliness, safety for human beings and livestock and the like.
Owner:ZHEJIANG UNIV

Lymph gland targeted metastatic human hepatoma cell strain and establishing method thereof

The invention provides a lymph gland targeted metastatic human hepatoma cell strain. The mother cell is a red fluorescent protein-expressed hepatoma cell HCCLM3-R. The human hepatoma cell strain is characterized in that the cell is named as lymph gland targeted metastatic human hepatoma cell strain HCCLM3-R-LnM1 according to the classified nomenclature with a preservation number of 3645, and has the following biological characteristics: the cell is polygonal epithelioid and is in adherent growth and loss of contact growth inhibition, is of a hypo-triploid karyotype, and has 50-58 of chromosomes each of which secretes AFP proteins. The establishing method comprises the following steps: using subcutaneous and liver orthotopic transplantation tumor models of a nude mouse to carry out spontaneous lymphatic metastasis screening, and then carrying out in-vitro cloning, amplification and purification on the lymphatic metastasis human hepatoma cell. The invention has wide application prospects and potential social and economic values in the basic research on hepatoma and the pre-clinic research on medicament.
Owner:ZHONGSHAN HOSPITAL FUDAN UNIV

An all digital wideband frequency synthesizer

The invention provides a programmable logic controller in the circuit of the frequency synthesizer, which can adjust the parameters of the loop filter according to the actual input signal of the frequency synthesizer, thereby enriching the function and adaptive range of the traditional frequency synthesizer. Secondly, the invention also provides a phase / frequency decider for judging the phase andfrequency of the input signal, thereby avoiding arithmetic operation and code conversion, and effectively reducing the complexity and power consumption of the circuit.
Owner:ARMY ENG UNIV OF PLA

Lung-targeting metastatic human hepatoma cell strain and establishing method thereof

The invention provides a lung-targeting metastatic human hepatoma cell strain and an establishing method thereof. The lung-targeting metastatic human hepatoma cell strain is characterized in that the mother cell is a red fluorescent protein expression hepatoma cell HCCLM3-R; the cell is named as a lung-targeting metastatic human hepatoma cell strain HCCLM3-R-LM1 by classifying, has the preservation number of 3644, and has the following biological characteristics that the cell is in polygonal epithelium shape, grows clinging to the wall, loses contact growth inhibition, has a hypo-triploid caryogram with the chromosome number of 50-58, secretes AFP protein, and has lung-targeting metastatic clonal selection advantage. The establishing method comprises the following steps of: sieving by adopting nude mouse subcutis and liver orthotopic implantation tumour model autogenetic lung metastasis, and then carrying out in-vitro cloning, purifying and propagating on the lung-targeting metastatic human hepatoma cell. The invention has wide application potential and potential societal and economic benefits in basic research of hepatoma and clinic previous research of medicines.
Owner:ZHONGSHAN HOSPITAL FUDAN UNIV

Foot mat applied to air purification in automobile

InactiveCN106188986AExtended service lifeExtend bright as newVehicle arrangementsEpoxyDecomposition
The invention discloses a foot mat applied to air purification in an automobile. The foot mat is prepared from the following raw materials in parts by weight: 20 to 40 parts of PVC (polyvinyl chloride), 10 to 30 parts of nanometer modified bamboo charcoal, 5 to 15 parts of diatomaceous earth, 5 to 10 parts of high-viscosity attapulgite clay, 5 to 8 parts of nano-silver, 1 to 5 parts of eucalyptus oil, 3 to 8 parts of rosin resin, 3 to 8 parts of epoxy resin, 5 to 10 parts of phthalate, 2 to 6 parts of chitosan and 5 to 10 parts of peach gum. According to the foot mat, air purification components are ingeniously combined with the PVC, so that the prepared conventional foot mat has the effects of formaldehyde, ammonia and phenol removal, smell removal deodorization, sterilization and bacteriostasis in the automobile, effective air purification in the automobile, adsorption and decomposition, and is natural and environment-friendly; the foot mat can be washed by a water gun to conveniently and rapidly wash away the formaldehyde adsorbed by the foot mat every time when the automobile is washed, so that two purposes of the foot mat are achieved.
Owner:鄢海军

Yak meat tenderizing and color-improving technology

The invention discloses a yak meat tenderizing and color-improving technology. The yak meat tenderizing and color-improving technology comprises the following steps: (1) shaping yak meat chunks, namely shaping acid-excreted mature yak meat chucks, and removing connective tissues such as sinews and tendons; (2) injecting tenderizing liquid, namely preparing tenderizing liquid, and uniformly injecting the tenderizing liquid into the yak meat chunks to be treated by using rowed syringe needles; (3) carrying out rolling-massage, namely performing rolling-massage on the yak meat chunks injected with the tenderizing liquid in a rolling machine so as to have the fiber of the yak meat infiltrated with the tenderizing liquid, and carrying out full reaction; (4) carrying out cutting and packaging, namely cutting the yak meat chunks after rolling-massage into pieces, and carrying out vacuum packaging; and (5) carrying out liquid high-hydrostatic-pressure treatment, namely performing liquid high-hydrostatic-pressure treatment on the vacuum-packaged yak meat so as to improve meat texture, and completing the tenderizing and color-improving processes. The yak meat tenderizing and color-improvingtechnology is capable of achieving the goal of tenderizing yak meat under the premise of preserving original color and luster of the yak meat; moreover, the yak meat tenderizing and color-improving technology is simple in processes, obvious in effects, low in processing cost, and significant in economic benefits.
Owner:XIHUA UNIV

Endurance test failure judgment method for automobile transmission system

The invention provides an endurance test failure judgment method for an automobile transmission system. The endurance test failure judgment method includes the steps that i different working condition points t are set according to different rotating speeds n and different torques M, testing is carried out on a traditional system test piece at each working condition point t, the transmission efficiency at each working condition point t is obtained, then the i working condition points t are repeatedly tested, the transmission efficiency is calculated, an efficiency matrix is formed, and data filtering is carried out on the efficiency matrix; the mean values (please see the specification) and the variances sigma of the transmission efficiency of the working condition points t in the efficiency matrix are calculated, and a mean value change curve and a variance change curve are drawn; a mean value threshold value and a variance threshold value are set, when the mean values (please see the specification) are lower than the set mean value threshold value or the variances sigma are larger than the set variance threshold value, an alarm signal is emitted out, a device is notified to take stopping measures, and it is judged that the test piece fails. By means of the endurance test failure judgment method, interference can be effectively reduced, the foreboding generated before the transmission system fails can be effectively found, and early diagnosis can be achieved.
Owner:CHINA AUTOMOTIVE ENG RES INST +1

Attractant for Anagrus nilaparvatae which are natural enemies of rice planthoppers

The invention discloses an attractant for Anagrus nilaparvatae which are natural enemies of rice planthoppers, which comprises components including linalool, liquid paraffin, 2, 6-di-tert-butyl-p-cresol and 2-hydroxy-4-methoxybenzophenone in a weight ratio of (0.01-0.10):(0.2-2):(0.01-0.1):(0.01-0.1). The attractant can attract female adults of Anagrus nilaparvatae which are important natural enemies of rice planthoppers in ovigerm stage, so as to reduce the quantity of rice planthopper colonies and reduce the damage of the rice planthoppers to rice plants. The attractant has the characteristics of low cost, high efficiency, environmental friendliness, safety for human beings and livestock, and the like. The attractant for Anagrus nilaparvatae which are the natural enemies of the rice planthoppers have a bright industrialization prospect; and as the preparation method is simple, the attractant is particularly suitable to be used in pollution-free production of rice and can create great economic, social and ecological benefit.
Owner:ZHEJIANG UNIV

Integrated transfer learning classification method and system for single-view full-polarization SAR data

The invention provides an integrated transfer learning classification method for single-view fully polarized SAR data, and the method comprises the steps of employing full-image segmentation and local windowing segmentation, and employing the context information of an image space to concentrate the labeled sample size of a source domain and expand the labeled sample size of a target domain; then, setting a source domain labeled sample selection process by combining a scattering vector similarity coefficient and a fitness function, and adjusting source domain sample distribution used by a training evaluator model according to a target domain category center; introducing reference information of the reliability of the weak classifier as a weight factor, performing category soft prediction by using the migration weak classifier in a weighting form, and giving a target domain unlabeled pixel false label with a consistent prediction result to expand the labeled sample size of the target domain and train a new weak classifier; and completing ensemble classification of all pixels in the target domain by iteratively utilizing the generated migration weak classifier set. The invention can significantly reduce the high dependence of a radar image classification task on target domain label information, and improves the classification efficiency and the automation level.
Owner:WUHAN UNIV

Method for extracting small-molecular oyster polypeptides

The invention discloses a method for extracting small-molecular oyster polypeptides; biological enzymatic hydrolysis and membrane technique are scientifically and reasonably integrated, the raw material is biologically enzymatically hydrolyzed through a specific composite enzyme, activated carbon may remove color and fishy smell and remove heavy metals and harmful substances, separation, concentration and purification are performed successively with an ultrafiltration membrane and a nanofiltration membrane having specific molecular weight cut-offs to obtain concentrate with small-molecular oyster polypeptides, and the concentrate is spray-dried to obtain the finished small-molecular oyster polypeptide; the method is highly operable, has an extraction rate of 0.8-3.0% for small-molecular oyster polypeptides, the prepared small-molecular oyster polypeptides are high in purity, the bioactivity of the small-molecular oyster polypeptides can be effectively guaranteed, the small-molecular oyster polypeptides belong to third-generation functional food made with oyster and may then act as a material for various high-added-value products, such as various functional peptide effervescent tablets, health products, nutrients and pharmaceuticals, and the richer forms of oyster downstream products are provided.
Owner:冯群力 +2

Centrifugal automatic lubrication bearing protection system

The invention relates to a centrifugal automatic lubrication bearing protection system. The system includes a cylinder body, two ends of the cylinder body are respectively provided with a cylinder cover, the inner end surface of the cylinder cover is provided with a groove, a rotating shaft is arranged in the cylinder body, two end portions of the rotating shaft are respectively arranged in the grooves of the cylinder covers through a bearing, a bearing back cover for supporting the bearing is sleeved on each of the two end portions of the rotating shaft, one or two end surfaces of the rotating shaft is or are respectively provided with a liquid storage chamber, a penetrating hole is arranged in the rotating shaft along an axial center line, the sidewalls at two end portions of the rotating shaft are respectively provided with a through hole connected with the liquid storage chamber or the penetrating hole, and the through holes are arranged between the end surfaces of the rotating shaft and the bearings respectively. The system has a simple structure, can be used in high speed rotating devices, such as a motor and a transmission box, makes the bearing lubricated and cooled constantly, and greatly prolongs the life of the bearings in order to ensure the running life of a whole apparatus.
Owner:NINGDE QIANJIN MOTOR

Sealed fixing structure of vehicle leading up wire and sealed fixing method thereof

ActiveCN106992480AOutstanding tightnessProminent fixityPipesElectric/fluid circuitNoise reductionButyl rubber
The invention provides a sealed fixing structure of a vehicle leading up wire. The structure comprises a leading up wire hole arranged on a vehicle body and a leading up wire passing through the leading up wire hole. A bottom of the leading up wire hole is provided with a butyl rubber belt sealing portion. A gap between the leading up wire and an inner wall of the leading up wire hole is provided with a sealant filling portion. The invention also provides a sealed fixing method of the vehicle leading up wire. The sealed fixing structure and the sealed fixing method can be applied to automobile and rail transit fields, such as the vehicle leading up wires of a subway, a high speed rail, a haulage motor and the like; and purposes of waterproof performance, dustproof performance, flame retardation, sound insulation, noise reduction, damping and the like are achieved, and later maintenance is simple. Used materials are environment-friendly type products, construction is simple, an appearance is beautiful, and a wide application prospect and an economic value are possessed in the automobile and rail transit field.
Owner:ZHENGZHOU ZHONGYUAN SILANDE HIGH TECH CO LTD +1

Method for recovering and using aluminum-plastic composite film

The invention discloses a method for recovering and using an aluminum-plastic composite film, which comprises the following steps: 1)crushing waste and old aluminum-plastic composite films, introducing in a bunker by a conveying system; 2)introducing the crushed waste and old aluminum-plastic composite films through a charging system into a reaction vessel for pyrolysis, wherein the reaction temperature is 350-500 DEG C; and 3)dedusting on oil gas and separating the oil gas, removing carbon black in the oil gas to respectively obtain heavy oil, light oil and combustible gas; cooling the crude aluminium powder in the reaction vessel through an ash-discharging system, and separating by a sorting system to obtain aluminium powder. The method is carried out under anoxic condition, aluminium foil can be recovered, plastic can be reduced to oil gas, the heat transfer effect is good, processing amount is large, no secondary pollution is generated, continuous large-scale production can be realized, and a brand new technology is created. The method has wide economic meaning and social meaning.
Owner:HANGZHOU DIANZI UNIV

Special balanced nutrition fertilizer for cultivation of millet

The invention discloses a special balanced nutrition fertilizer for cultivation of millet. The provided balanced nutrition fertilizer comprises the ingredients of KNO3, KH2PO4 or Ca(H2PO4)2.H2O, KCl,MgSO4.7H2O or MgSO4.H2O, Ca(NO3)2.4H2O or 5Ca(NO3)2NH4NO3.10H2O, and FeSO4.7H2O. The experiment result shows that: compared with the current conventional fertilizing methods of farmers (compound fertilizers, urea, ammonium sulfate, potassium chloride and potassium sulphate), the yield per mu of the millet is increased by 1-8%, a use method is simple and convenient, the plant grows robustly and canresist diseases and insect pests, the use level of the pesticide is reduced, the pesticide and manpower costs are lowered, meanwhile, the quality and the taste of the millet are improved, the original flavors of the different millet varieties are recovered, and meanwhile, the storage endurance of the millet is also improved.
Owner:郭婧 +1

Special balanced nutrient fertilizer for cultivating beet

The invention discloses a special balanced nutrient fertilizer for cultivating beet. The special balanced nutrient fertilizer disclosed by the invention consists of components of KH2PO4 or Ca(H2PO4)2.H2O, KCl or K2SO4, MgSO4.7H2O or MgSO4.H2O, Ca(NO3)2.4H2O or 5Ca(NO3)2NH4NO3.10H2O and FeSO4.7H2O. Experiment results show that when the yield per mu of the special balanced nutrient fertilizer for cultivating beet is compared with that of a conventional common fertilization method (composite materials, urea, potassium sulfate, biological fertilizers and organic fertilizers) of farmers, the special balanced nutrient fertilizer is simple and convenient in use method, plants can grow strongly, good disease resistance is achieved, insecticide spraying times are reduced, the insecticide and laborcost is reduced, the yield per mu is increased by 1-6%, and the sugar content of the beet is increased.
Owner:郭婧 +1

Micromolecular shellfish polypeptide extraction method

The invention discloses a micromolecular shellfish polypeptide extraction method. By scientific and reasonable integration of biological enzymolysis technology and membrane technology, the method includes: subjecting raw materials to biological enzymolysis with a complex enzyme formed by compounding of collagenase and papain; performing separation, concentration and purification sequentially through an ultrafiltration membrane and a nanofiltration membrane specific in molecular weight cutoff to obtain micromolecular shellfish polypeptide containing concentrated liquid; finally subjecting the concentrated liquid to spray drying to obtain a micromolecular shellfish polypeptide product. The extraction method is high in operability; the micromolecular shellfish polypeptide prepared according to the method is high in purity, bioactivity of the micromolecular shellfish polypeptide can be guaranteed effectively, and the micromolecular shellfish polypeptide can be used as a raw material of various high-added-value products subsequently and has a wide market space and high economic value.

Extracting method of small-molecular sea cucumber-oyster polypeptide

The invention discloses an extracting method of a small-molecular sea cucumber-oyster polypeptide. A biological enzymolysis technology and a membrane technology are scientifically and reasonably integrated, and raw materials are subjected to biological enzymolysis through specific compound enzyme; active carbon can have the effects of removing color and fishiness and removing heavy metal and harmful substances; a concentrated solution containing the small-molecular sea cucumber-oyster polypeptide is obtained by sequentially separating, concentrating and purifying through an ultra-filtration membrane and a nano-filtration membrane, which have specific molecular weight cutoff; and finally, the concentrated solution is sprayed and dried to obtain a small-molecular sea cucumber and oyster polypeptide finished product. The method disclosed by the invention has high operability and the extracting rate on the small-molecular sea cucumber-oyster polypeptide is 1.0%-3.8%; the prepared small-molecular sea cucumber-oyster polypeptide has high purity and the bioactivity of the small-molecular sea cucumber-oyster polypeptide can be effectively guaranteed; and the small-molecular sea cucumber-oyster polypeptide cab be used as the raw material of various high-additional-value products in future, and has a wide market space and economic value.
Owner:冯群力 +2

Constant-temperature and constant-humidity unfreezing device based on Internet of Things and control method thereof

InactiveCN111919880AUnfreeze GuaranteeGood defrosting qualityTransmission systemsMeat/fish preservation by freezing/coolingThe InternetHeat conservation
The invention relates to a constant-temperature and constant-humidity unfreezing device based on the Internet of Things and a control method thereof. The unfreezing device comprises a heat preservation and insulation warehouse body, an electric heating system, a humidifying system, a refrigerating system, a control system and a remote control system. The device comprises two working modes, namelyan unfreezing mode and a fresh-keeping mode. In the unfreezing mode, the electric heating system and the refrigerating system are jointly controlled to achieve variable-temperature unfreezing control,the humidifying system conducts humidity control according to the set target humidity, and it is guaranteed that the unfreezing process is conducted in the constant high-humidity environment. And inthe fresh-keeping mode, the refrigerating system performs constant-temperature control. Corresponding food thawing and fresh-keeping treatment can be carried out according to different requirements, remote online parameter configuration and control can be realized, thawing parameters are greatly convenient to set and update, the quality of thawed food is guaranteed, and the economic benefit is considerable.
Owner:NANKAI UNIV

Graphene-based handheld hair follicle detection method and equipment thereof

The invention discloses a graphene-based handheld hair follicle detection method and equipment thereof, a graphene sensor has the advantages of high precision, small size, low power consumption and the like, and by arranging a graphene humidity sensor on the traditional hair follicle detection equipment , the functions of the hair follicle detection equipment can be greatly enriched, secondly, according to the method, on the basis that traditional hair follicle detection equipment can only provide image data, the scalp humidity data can also be provided, the scalp humidity is also important scalp data, and more effective information can be provided for diagnosis of doctors.
Owner:广西中医药大学附属瑞康医院

Pattern recognition adaptive full waveform inversion method

The invention discloses a pattern recognition adaptive full waveform inversion method. The method comprises the following steps: 1, completion of each shot gather record comprises the following sub steps: 1-1, the positive propagation wave field at each moment is calculated; 1-2, an adjoint source deltas is calculated and is backpropagated to obtain back propagation data; and 1-3, the correlationbetween the back propagation wave field and the positive propagation wave field is calculated to obtain the gradient of the single shot; 2, gradient superposition is solved from all shots, and a global gradient of the model space is thus obtained; and 3, the modification amount of a speed model is obtained through a steepest descent method or a local inversion algorithm, and an optimized speed model is further obtained. The method disclosed in the invention has no limitation of only using the low frequency component of seismic data, can use the intermediate frequency and high frequency components of the seismic record, such as a frequency component in a main frequency range, and does not have the defect of wrong solution caused by cycle jump and the like by the conventional full waveform inversion technique.
Owner:国油伟泰(北京)科技有限公司

Preparation method of fermented beverage rich in soybean isoflavone aglycone

The invention discloses a preparation method of a fermented beverage rich in soybean isoflavone aglycone. The preparation method comprises the following steps: 1) constructing recombinant lactic acid bacteria with high yield of beta-glucosidase; and 2) pretreating soybean-related raw materials, inoculating the recombinant lactic acid bacteria for fermentation, and performing sterilization and canning. According to the preparation method disclosed by the invention, the lactic acid bacteria are transformed by utilizing a genetic engineering technology, so that the blindness of a traditional technology is avoided, a large amount of screening and detection work is reduced, the recombinant lactic acid bacteria with high yield of beta-glucosidase are obtained, the lactic acid bacteria are promoted to produce a large amount of beta-glucosidase in the fermentation process, conversion of glycoside type soybean isoflavone to aglycone type soybean isoflavone is greatly promoted, and a new idea is provided for preparing a functional beverage rich in soybean isoflavone aglycone.
Owner:SUZHOU UNIV
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