Abrégé

A chemical modification method for extending the half-life of theanine in vivo. The half-life of theanine in vivo is extended by forming a specific theanine glycoside compound by means of modification of specific monosaccharides, which can be used to prepare a sustained-release drug, extend a duration of drug action, reduce a number of doses, and improve patient compliance. The theanine glycoside compound obtained following said modification may have broad application prospects and high commercial value in scientific research and clinical practice.

Classes IPC  ?

• C07H 15/12 - Radicaux acycliques non substitués par des structures cycliques liés à un atome d'azote d'un radical saccharide
• A61K 47/54 - Préparations médicinales caractérisées par les ingrédients non actifs utilisés, p. ex. les supports ou les additifs inertesAgents de ciblage ou de modification chimiquement liés à l’ingrédient actif l’ingrédient non actif étant chimiquement lié à l’ingrédient actif, p. ex. conjugués polymère-médicament l’ingrédient non actif étant un agent de modification l’agent de modification étant un composé organique
• A61K 31/198 - Alpha-amino-acides, p. ex. alanine ou acide édétique [EDTA]
• A61P 29/00 - Agents analgésiques, antipyrétiques ou anti-inflammatoires non centraux, p. ex. agents antirhumatismauxMédicaments anti-inflammatoires non stéroïdiens [AINS]
• A61P 39/06 - Antiradicaux libres ou antioxydants
• A61P 5/28 - Antiandrogènes
• A61P 9/12 - Antihypertenseurs
• A61P 35/00 - Agents anticancéreux
• C07H 1/00 - Procédés de préparation des dérivés du sucre

Abrégé

A long-distance sampling device for feces in a poultry house is provided. The device includes an unmanned aerial vehicle body including a wireless controller, supporting feet arranged on the unmanned aerial vehicle body, and a sampling unit arranged on the unmanned aerial vehicle body for collecting fecal samples. The sampling unit further includes a sampling power portion arranged in the unmanned aerial vehicle body and a sampling portion arranged on the unmanned aerial vehicle body. The sampling portion further includes a cylindrical sampling tube and a sampling shaft rotatably connected to the sampling tube, spiral blades are fixedly connected to the sampling shaft, and the sampling power portion drives the sampling shaft to rotate. According to the device, it is convenient for workers to take samples in the poultry house, thereby the convenience of sampling is improved, and the workers do not need to get into the breeding areas.

Classes IPC  ?

• G01N 1/08 - Dispositifs pour prélever des échantillons à l'état solide, p. ex. par coupe à l'outil impliquant un outil d'extraction, p. ex. mèche cylindrique creuse ou trépan
• A01K 31/04 - Planches inclinéesDispositifs pour retirer les excréments
• B64U 30/299 - Protections de rotor
• B64U 101/00 - Véhicules aériens sans pilote spécialement adaptés à des utilisations ou à des applications spécifiques
• B64U 101/70 - Véhicules aériens sans pilote spécialement adaptés à des utilisations ou à des applications spécifiques à l’utilisation à l’intérieur d’espaces clos, p. ex. dans les bâtiments ou dans les véhicules

Abrégé

Disclosed is a portable telescopic push-pull vibrating-shaking type Camellia oleifera fruit picking and beating machine. The machine includes a picking and beating head, a gear shifting mechanism, a power transmission and picking and beating rod, a direct current motor, a control system, a handheld grip, and a lithium battery. A battery supplies power to enable the direct current motor to rotate, the direct current motor drives a worm and worm wheel mechanism in the gear shifting mechanism to rotate through a power transmission rod, the worm and worm wheel mechanism drives the picking and beating head to achieve reciprocating push-pull motion, such that the picking and beating rod can pull a branch to generate push-pull and vibration to pick Camellia oleifera fruit down. The picking and beating head is provided with a force sensor capable of monitoring picking and beating strength at any time.

Classes IPC  ?

• A01D 46/26 - Dispositifs pour secouer les arbres ou les arbustesDispositifs pour recueillir les fruits utilisés avec ces dispositifs de secousse

Abrégé

The present disclosure relates to the technical fields of agriculture and environmental microbiology, and provides Agrobacterium for reducing uptake of heavy metals by wheat. The Agrobacterium is strain NJ20, which is deposited in China General Microbiological Culture Collection Center under Accession CGMCC No. 26197. The present disclosure also provides a bacterial agent which is prepared by the aforementioned Agrobacterium. The Agrobacterium and bacterial agent thereof are used for reducing uptake of heavy metals in heavy metal contaminated soil by wheat. The strain NJ20 of the present disclosure can grow well under the stress of lead and cadmium, and remove soluble lead and cadmium in the culture solution by adsorption; meanwhile the strain NJ20 can generate indoleacetic acid, dissolve insoluble tricalcium phosphate and improve phosphorus nutrition in soil. Inoculation of the strain NJ20 into heavy metal contaminated soil can reduce the contents of lead and cadmium in wheat grains and straws.

Classes IPC  ?

• C12N 1/20 - BactériesLeurs milieux de culture
• B09C 1/10 - Régénération de sols pollués par des procédés microbiologiques ou utilisant des enzymes
• C12R 1/01 - Bactéries ou actinomycètes

Abrégé

The present disclosure provides a slope reinforcing and protecting device for hydraulic engineering. The device includes a connecting base body, where an upper end of the connecting base body is fixedly connected to a protection assembly, and a fastening assembly is arranged in the protection assembly for supporting. A protection net is connected around an outer side of the connecting base body.

Classes IPC  ?

• E02D 17/20 - Stabilisation de talus ou de rampes
• E02B 11/02 - Appareils pour la mise en place de dispositifs de drainage, p. ex. charrues de drainage

Abrégé

The application includes a Brevundimonas and a use thereof in tea plant planting, belonging to the technical field of microorganisms. The Brevundimonas is Brevundimonas sp. AnNong-1 which is preserved in China Center for Type Culture Collection with a preservation number CCTCC M 20221537. The culture solution of the strain can significantly increase the function of the total amount of L-Theanine in first and second leaves of tea plants after being inoculated around a distance of about 5 cm from the roots of tea seedlings. The Brevundimonas sp. AnNong-1 of the present invention is easy to operate in fermentation conditions and can also be used for preparing a natural microbial fertilizer, which can significantly increase the content of L-Theanine without greatly affecting the content of tea polyphenol, thereby providing a choice for the tea market. The microbial fertilizer is an environmental-friendly fertilizer, and can greatly reduce environmental pollution.

Classes IPC  ?

• C05F 11/08 - Engrais organiques comportant l'addition de cultures bactériennes, de mycélium ou similaires
• A01G 29/00 - Dispositifs pour l'alimentation des racinesInjection d'engrais dans les racines
• C05G 5/23 - Solutions
• C12N 1/20 - BactériesLeurs milieux de culture
• C12R 1/01 - Bactéries ou actinomycètes

Abrégé

Disclosed in the present disclosure are a vertical-height gauge and a measuring method, relating to the field of surveying and mapping tools, and including a measuring plate, a support fixing plate, a plumb, a steel tape and a plumb rope. The measuring plate includes a reference plate, an auxiliary reference plate and a reference ruler; the support fixing plate includes a fixing base plate, two racks are oppositely arranged on a side surface of the fixing base plate, a slide plate is arranged between the two racks, a first gear meshing with the single rack and rotating is arranged on two sides of the slide plate separately, a control assembly is arranged on the slide plate, and the control assembly is configured to control a rotating state of the first gears; and the reference plate is perpendicularly connected to the slide plate.

Classes IPC  ?

• G01B 5/06 - Dispositions pour la mesure caractérisées par l'utilisation de techniques mécaniques pour mesurer la longueur, la largeur ou l'épaisseur pour mesurer l'épaisseur
• G01C 15/10 - Fils à plomb

Abrégé

The present application relates to a method, apparatus, device and medium for identifying candidate genes that regulate the shape of bacteria. The method includes: obtaining reference genome data of bacteria and performing protein domain analysis on the reference genome data of bacteria; determining the feature value dataset for each bacterium based on the structural domains of all proteins obtained from the analysis; obtaining shape information of each bacterium; training a bacterial shape prediction model based on the shape information of each bacterium and the feature value dataset, and determining the weights of each protein domain in influencing the shape of the bacterium according to the bacterial prediction model; determining candidate genes that regulate the shape of bacteria based on the weights. This method can be used to rapidly screen out the candidate genes that regulate the shape of bacteria, and establish a new method for mining biofunctional genes.

Classes IPC  ?

• C12Q 1/689 - Produits d’acides nucléiques utilisés dans l’analyse d’acides nucléiques, p. ex. amorces ou sondes pour la détection ou l’identification d’organismes pour les bactéries
• G16B 5/00 - TIC spécialement adaptées à la modélisation ou aux simulations dans la biologie des systèmes, p. ex. réseaux de régulation génétique, réseaux d’interaction entre protéines ou réseaux métaboliques
• G16B 20/00 - TIC spécialement adaptées à la génomique ou protéomique fonctionnelle, p. ex. corrélations génotype-phénotype
• G16B 25/10 - Profilage de l’expression de gènes ou de protéinesEstimation ou normalisation de ratio d’expression
• G16B 40/20 - Analyse de données supervisée

Abrégé

chinensis from embryonic tip tissues, including the following steps. A seed is inoculated to a germination medium for dark culture for 60 h. The testa, root tip, two cotyledons and middle growing point of the resultant germinated seed are removed, and an embryonic tip with a length of 3-5 mm is retained as an explant. The explant is sequentially subjected to low-temperature pre-culture in a pre-culture medium for 36 h, room-temperature shaking culture in a liquid bud induction culture medium for 10 min, and bud induction culture in a bud induction culture medium for 20 d. A regenerated plant with 5-6 leaves is transferred to a rooting medium for rooting culture for about 2 weeks, and a well-rooted plant is collected, and subjected to hardening and transplantation into a filed.

Classes IPC  ?

• A01H 4/00 - Reproduction de plantes par des techniques de culture de tissus

Abrégé

The present disclosure provides an antimicrobial peptide (AMP) for controlling Pseudomonas syringae pv. actinidiae (PSA) and a preparation method and use thereof, belonging to the technical field of biological control. In the present disclosure, the AMP has an amino acid sequence of Trp-Trp-Lys-Leu-Leu-Arg-Lys-Leu-NH2, and has a typical amphiphilic structure. The AMP can target a cell membrane of the PSA, increasing permeabilization and dissipating a membrane potential, which leads to calcium ion leakage. The AMP also acts on intracellular targets, affects DNA functions, reduces an activity of esterases, and induces the generation of reactive oxygen species (ROS). The AMP has a minimal inhibitory concentration (MIC) of 3.13 μg/mL and a half maximal effective concentration (EC50) of 1.67 μg/mL for the PSA, showing an activity significantly higher than that of agricultural streptomycin.

Classes IPC  ?

• C07K 7/06 - Peptides linéaires ne contenant que des liaisons peptidiques normales ayant de 5 à 11 amino-acides
• A61P 31/04 - Agents antibactériens

Abrégé

A cavity-type seed-metering device with a magnetic seed protection assembly is provided, which includes a seed-metering device shell, a seeding plate and a seeding shaft. The seeding plate rotatably mounted in the seed-metering device shell through the seeding shaft. A seeding channel is formed in the seed-metering device shell. Multiple cavities are formed in the seeding plate. Seed filling orifices connected with the cavities are formed in one side of the seeding plate. Seeding outlets connected with the cavities are formed in a circumferential surface of the seeding plate. A magnetic hinge is rotatably connected with the seeding outlet. A notched magnetic ring is fixed in the seed-metering device shell. The magnetic hinge can close the seeding outlet under a magnetic force of the notched magnetic ring. A magnetic block that can attract the magnetic hinge for opening the seeding outlets is arranged in the seeding channel.

Classes IPC  ?

• A01C 7/04 - Semoirs à graines isolées avec ou sans dispositifs à succion
• A01C 7/10 - Dispositifs de réglage de la caisse à semences

Abrégé

A sowing device changes a depth of wheat sowing includes an external skeleton, where one side of the external skeleton is fixedly connected with a connection part for articulated with a tractor; a main board slidably connected to an interior of the external skeleton and a seeding unit below the main board; a support frame fixedly connected to the main board; a plow blade for slotting land rotatably connected to a bottom of the support frame; a rotary roller below the external skeleton and rotationally connected thereto. The main board is moved downwards to drive a straight toothed plate fixedly connected to the main board to move downwards; the straight toothed plate is moved upwards through a meshing effect of a gear to cause L-shaped toothed plate to move upwards to squeeze a horizontal plate to move upwards.

Classes IPC  ?

• A01C 7/06 - Semoirs combinés avec des appareils de fertilisation
• A01C 5/04 - Machines pour ouvrir ou recouvrir des trous pour l'ensemencement ou la plantation
• A01C 7/18 - Machines pour déposer une quantité de semence de distance en distance (semoirs en poquets)
• A01C 7/20 - Éléments de semoirs pour guider et déposer les graines

Abrégé

A graft copolymer and a preparation method and use thereof. The method for preparing a graft copolymer includes: dissolving an N-ethyl-2-pyrrolidinone-substituted flavan-3-ol (EPSF) and a starch in a polar organic solvent, to obtain a raw material solution; and mixing the raw material solution with ascorbic acid and hydrogen peroxide to obtain a mixture, and subjecting the mixture to a grafting reaction, to obtain the graft copolymer. The graft copolymer has a structural formula represented by formula I or formula II,

Classes IPC  ?

• C08B 31/12 - Éthers contenant des radicaux alkyle ou cycloalkyle substitués par des hétéro-atomes

Abrégé

The present invention belongs to the technical field of molecular breeding in maize. Provided are a maize dwarfing-related molecular marker having semi-dominance and the use thereof. The maize dwarfing-related molecular marker is caused by the non-synonymous mutation of G into A in a maize gene Zm00001d013465. The molecular marker is a nucleotide sequence consisting of the non-synonymous mutation site and bases upstream and downstream thereof. A dwarfing mutant named E5779 is identified from an EMS mutagenesis population with maize B73 as the genetic background. Through genomic resequencing and Mutmap mapping, it is found that the mutant is caused by the non-synonymous mutation of G into A in the Zm00001d013465 gene. The E5779 mutant has a significant decrease in plant height and ear position height, has semi-dominant characteristics, and can significantly reduce the height of F1 generation plants, and accordingly the molecular marker is developed. Analysis and utilization of E5779 are helpful for maize plant height improvement and high-density-tolerance breeding, having an important breeding application potential.

Classes IPC  ?

• C12Q 1/6895 - Produits d’acides nucléiques utilisés dans l’analyse d’acides nucléiques, p. ex. amorces ou sondes pour la détection ou l’identification d’organismes pour les plantes, les champignons ou les algues
• C12N 15/11 - Fragments d'ADN ou d'ARNLeurs formes modifiées
• A01H 1/02 - Méthodes ou appareils d'hybridationPollinisation artificielle
• A01H 1/04 - Procédés de sélection

Abrégé

E. grisescens and offering new microbial resources to address pesticide residue problems.

Classes IPC  ?

• C12N 1/20 - BactériesLeurs milieux de culture
• C05F 11/08 - Engrais organiques comportant l'addition de cultures bactériennes, de mycélium ou similaires
• C05G 3/40 - Mélanges d'un ou plusieurs engrais avec des additifs n'ayant pas une activité spécifique d'engrais pour influer sur le dosage de l’engrais ou sur sa vitesse de libérationMélanges d'un ou plusieurs engrais avec des additifs n'ayant pas une activité spécifique d'engrais pour influer sur la solubilité
• C12R 1/01 - Bactéries ou actinomycètes

Abrégé

A welfare-oriented raising house for meat-type ducks, including a raising house, is provided. The raising house is internally provided with a support frame which is of a U-shaped structure and arranged in a length direction of the raising house, a raising net arranged at a top of the support frame, a cleaning and storing mechanism arranged at one end of the support frame for cleaning and storing the raising net, a traction mechanism arranged at the other end of the support frame for the traction of the raising net, blocking mechanisms which are of a zigzag structure and arranged at both sides of the support frame, and tensioning vibration mechanisms arranged at bottoms of the blocking mechanisms and fixedly connected to a side edge of the support frame.

Classes IPC  ?

• A01K 31/04 - Planches inclinéesDispositifs pour retirer les excréments
• A01K 31/22 - Volières

Abrégé

The present disclosure provides a Cellulosimicrobium cellulans strain and use thereof in straw field composting, belonging to the technical field of microorganisms. In the present disclosure, the Cellulosimicrobium cellulans strain is named Cellulosimicrobium cellulans MC29-GFP, and is deposited in the China General Microbiological Culture Collection Center (CGMCC), with a deposit number of CGMCC No. 25013. The Cellulosimicrobium cellulans MC29-GFP can promote the compost decomposition of straw in field. The experimental results show that the Cellulosimicrobium cellulans MC29-GFP significantly increases activities of cellulase and peroxidase in the straw during the decomposition compared with Bacillus amyloliquefaciens SQR9, thereby achieving rapid decomposition.

Classes IPC  ?

• C05F 17/20 - Emploi de microorganismes ou de substances, p. ex. d'enzymes, pour activer ou stimuler le traitement
• C05F 11/08 - Engrais organiques comportant l'addition de cultures bactériennes, de mycélium ou similaires
• C05G 3/80 - Conditionneurs de sol
• C12N 1/20 - BactériesLeurs milieux de culture

Abrégé

Disclosed is a top surface wave antenna of a spherical Tokamak, comprising a feedback waveguide, a brim, sub-waveguides, and a metal base. The lower end of the feed waveguide is connected to one end of the metal base, and one side of the feed waveguide is connected to the brim. The brim is towards a length direction of the metal base. A plurality of sub-waveguides are arranged on the metal base at equal intervals, the tops of the sub-waveguides are not higher than the height of the metal base, and the sub-waveguides are arranged in a rising line trend. The feed waveguide serves as a microwave input port. The top surface wave antenna of the spherical Tokamak is mainly used in a high-power Tokamak system and acts on the low-hybrid wave current driving together with an external antenna so as to obtain a better effect.

Classes IPC  ?

• H05H 1/46 - Production du plasma utilisant des champs électromagnétiques appliqués, p. ex. de l'énergie à haute fréquence ou sous forme de micro-ondes
• G21B 1/05 - Réacteurs de fusion thermonucléaire avec confinement magnétique ou électrique du plasma

Abrégé

Disclosed is a Tokamak outer antenna, comprising feed waveguides, brims, sub-waveguides and a metal base. The metal base is in a W shape, both ends of the metal base are connected to the lower surfaces of feed waveguides, respectively. Opposite sides of two feed waveguides are connected to the brims, respectively, and a plurality of sub-waveguides are arranged on the upper surface of the metal base at equal intervals. The height of each sub-waveguide is not higher than the height of the feed waveguide, one feed waveguide serves as a microwave input port, and the other feed waveguide serves as a microwave output port. The Tokamak outer antenna disclosed by the present disclosure is a novel antenna which is simple in feed, low in reflection and transmission coefficients and high in directivity.

Classes IPC  ?

• H01Q 13/10 - Antennes à fentes résonnantes

Abrégé

The present disclosure provides a tea plant CsVAAT3 gene and use thereof. The tea plant CsVAAT3 gene has a nucleotide sequence shown in SEQ ID NO: 1 in sequence listing. A protein coded by the tea plant CsVAAT3 gene has an amino acid sequence shown in SEQ ID NO: 2 in the sequence listing. An expression pattern of CsVAAT3 in tea plant is significantly positively correlated with the nitrogen level in tea roots. The CsVAAT3 is highly expressed in tea roots. A pDR196-CsVAAT3 plasmid constructed from this gene is transformed into a vacuolar amino acid uptake-deficient yeast strain ypq2, which can restore the growth ability of the yeast mutant on a high-concentration theanine medium. Cloning of the gene is beneficial to analysis of a molecular mechanism of theanine storage in tea roots, providing an important target gene resource and a theoretical basis for cultivation of new tea cultivars with high theanine content.

Classes IPC  ?

• C12N 15/81 - Vecteurs ou systèmes d'expression spécialement adaptés aux hôtes eucaryotes pour champignons pour levures
• C12N 1/16 - LevuresLeurs milieux de culture

Abrégé

dendrobium dry powder, adding water for performing ultrasonic treatment, and then adding a composite enzyme for enzymolysis to obtain an enzymolysis solution; adding acidity alcohol into the enzymolysis solution, extracting for 1 min under an ultra-high pressure, and then taking filtrate; and concentrating the filtrate in vacuum, then purifying using a mixed-mode cation exchanger (MCX) extraction column, eluting with a methanol-acetonitrile solution, collecting eluent, blowing with nitrogen until no water, and then dissolving with methanol and filtering to obtain the to-be-detected solution.

Classes IPC  ?

• G01N 30/72 - Spectromètres de masse
• G01N 1/34 - PurificationNettoyage
• G01N 30/06 - Préparation
• G01N 30/02 - Chromatographie sur colonne

Abrégé

The present disclosure provides a molecular marker for identifying traits of efficiency of duck feed utilization based on a neuropeptide gene NPY, a method and use thereof. The NPY gene has a nucleotide sequence shown in SEQ ID NO: 1, the molecular marker is T or C, and the molecular marker is located at position 577 of the nucleotide sequence. In the present disclosure, mutation of the NPY gene is detected using a polymerase chain reaction-single strand conformation polymorphism (PCR-SSCP) method, the traits of efficiency of duck feed utilization are selected based on genotypes, and a breeding method for early selection of efficiency of poultry feed utilization is established. The method is simple, rapid, and low-cost, does not need special instrument, and satisfies experimental needs.

Classes IPC  ?

• C12Q 1/6888 - Produits d’acides nucléiques utilisés dans l’analyse d’acides nucléiques, p. ex. amorces ou sondes pour la détection ou l’identification d’organismes

Abrégé

The present disclosure provides a tea plant CsFAAH6 gene and use thereof. The tea plant CsFAAH6 gene has a nucleotide sequence shown in SEQ ID NO: 1 in sequence listing. A protein coded by the tea plant CsFAAH6 gene has an amino acid sequence shown in SEQ ID NO: 2 in the sequence listing. The CsFAAH6 is highly expressed in mature leaves of tea plants; there is significant negative correlation between theanine content in shoots (one bud and two leaves) of different tea cultivars in different months and expression level of the CsFAAH6; instantaneous silencing of CsFAAH6 expression can significantly increase the theanine content, indicating that CsFAAH6 has a physiological function of theanine degradation and a molecular mechanism thereof.

Classes IPC  ?

• C12N 9/80 - Hydrolases (3.) agissant sur les liaisons carbone-azote autres que les liaisons peptidiques (3.5) agissant sur les liaisons amides des amides aliphatiques
• C12N 15/82 - Vecteurs ou systèmes d'expression spécialement adaptés aux hôtes eucaryotes pour cellules végétales

Abrégé

The present disclosure provides a pyraclostrobin microcapsule based on sodium alginate, which is prepared by mixing pyraclostrobin original drug dissolved in ethyl acetate, 1% aqueous sodium alginate solution, and 5% aqueous calcium carbonate solution at 25° C., and mixing the mixed solution with liquid paraffin containing 10% emulsifier A-110, maintaining a shear rate of 1000 r/min to emulsify for 10 min; using 87.5 mmol/L glacial acetic acid to reduce the pH of the mixed phase, such that the cross-linking reaction between ions can be formed into microcapsules; finally using pH 4.5 acetate buffer to wash and separate the microcapsule slurry, and then centrifuging and freeze-drying to prepare the pyraclostrobin SA microcapsules. The microcapsules prepared by the present disclosure have excellent formulation performance and can be used for the control of Fusarium pseudograminearum.

Classes IPC  ?

• B01J 13/14 - Polymérisation, réticulation
• A01N 25/28 - Microcapsules
• A01N 43/56 - Diazoles-1,2Diazoles-1,2 hydrogénées

Abrégé

The present disclosure is suitable for the technical field of grain seed sowing, and provides a precision grain seed sowing device capable of uniformly discharging grain seeds. The sowing device comprises a grain seed supplying mechanism, a grain seed conveying mechanism and a grain seed discharging mechanism, wherein the grain seed supplying mechanism is used for providing grain seeds to the grain seed conveying mechanism for sowing, and the grain seed discharging mechanism is used for discharging the grain seeds uniformly provided by the grain seed conveying mechanism; the grain seed conveying mechanism comprises a grain seed conveying assembly and a grain seed replenishing assembly, the grain seed conveying assembly is used for uniformly providing the grain seeds for the grain seed discharging mechanism, and when an empty groove condition appears in the process that the grain seed conveying assembly provides the grain seeds for the grain seed discharging mechanism.

Classes IPC  ?

• A01C 7/10 - Dispositifs de réglage de la caisse à semences
• A01C 7/20 - Éléments de semoirs pour guider et déposer les graines

Abrégé

2; releasing microspores, filtering and centrifuging to obtain purified microspores; diluting the microspores with a NLN medium, subpackaging into culture dishes, and adding phytic acid; finally, subjecting to heat shock treatment and transferring to culture in the dark until embryoids appear, and then conducting shaking culture; transferring the cultured embryos in a cotyledon stage onto a MS medium for differentiation culture, wherein the culture conditions are: 4° C., 14 h of illumination by blue-red compound light/day, and 14 days of culture; and then continuing to culture under the condition of 25° C. and 14 h of illumination by blue-red compound light/day until seedlings.

Classes IPC  ?

• A01H 4/00 - Reproduction de plantes par des techniques de culture de tissus
• C12N 5/04 - Cellules ou tissus végétaux

Abrégé

The disclosure relates to the technical field of soybean breeding, in particular to a method for improving soybean hybrid yield. In the method, fertile soybean is taken as a male parent, and pollen from the male parent is prepared into a pollen compound solution, which is carried with a spraying device to be directionally spayed to a female parent for hybridization, where the female parent is a genic male sterile soybean plant. By preparation of an appropriate proportion of pollen compound solution and pollination assisted by artificial spraying, the disclosure may not only enhance the pollen activity, but also improve the pollen utilization rate and greatly improve the efficiency of soybean hybrid production, thereby improving the soybean yield. It effectively saves human resources, improves the efficiency of soybean hybrid production, and meets the needs of soybean industry development.

Classes IPC  ?

• A01H 1/02 - Méthodes ou appareils d'hybridationPollinisation artificielle
• A01H 6/54 - Leguminosae ou Fabaceae, p. ex. soja, luzerne ou arachide

Abrégé

A preparation method of a low-glycemic index (GI) rice includes: S1. washing indica rice grains to remove impurities, soaking the indica rice grains, and subjecting the indica rice grains to an ultrasonic treatment in excess water; S2. filtering out the indica rice grains, and cooking the indica rice grains for 20 min to 40 min; S3. subjecting indica rice grains obtained after the cooking to an ultra-high pressure treatment at 300 MPa to 600 MPa for 30 min to 35 min in a high-pressure container filled with water; S4. air-cooling indica rice grains obtained after the ultra-high pressure treatment, and refrigerating the indica rice grains; S5. after the refrigerating is completed, oven-drying the indica rice grains at 30° C. to 35° C. until a moisture content is less than 16%; and S6. shelling resulting indica rice grains to obtain the desired low-GI rice.

Classes IPC  ?

• A23L 7/143 - Céréales sous forme granulée ou flocons à cuire et à consommer chaud, p. ex. flocons d'avoineProduits à base de riz reconstitué
• A23L 7/10 - Produits dérivés des céréales
• A23L 33/00 - Modification de la qualité nutritive des alimentsProduits diététiquesLeur préparation ou leur traitement

Abrégé

Disclosed is a tea leaf and tea stem separating device. The tea leaf and tea stem separating device comprises a machine shell, wherein a collecting mechanism, a peeling mechanism, a separating mechanism, a rocker mechanism and recycling mechanisms are sequentially arranged on the machine shell in the falling direction of materials, a driving mechanism is arranged at the position, corresponding to the separating mechanism, of the inner wall of the machine shell, the driving mechanism is provided with a conveyor belt mechanism connected with the peeling mechanism, the separating mechanism and the rocker mechanism, and the driving mechanism can drive the conveyor belt mechanism to move so as to pull the peeling mechanism, the separating mechanism and the rocker mechanism to synchronously reciprocate.

Classes IPC  ?

• B07B 1/16 - Appareils ayant uniquement des éléments parallèles les éléments étant mobiles autrement que par des rouleaux
• B07B 1/42 - Mécanismes d'entraînement, dispositifs de régulation ou de commande, ou dispositifs d'équilibrage, spécialement adaptés aux tamis
• B07B 11/06 - Dispositifs d'alimentation ou de déchargement

Abrégé

A preparation method of a branched polyamide copolymer with ultra-high toughness is disclosed. The preparation method includes: (1) dissolving a linear dibasic acid in a solvent A to obtain a linear dibasic acid solution, dissolving a diamine B in a solvent B to obtain a diamine solution B, and dissolving a diamine C in a solvent C to obtain a diamine solution C; (2) adding the diamine solution B to the linear dibasic acid solution to obtain an amide salt solution B; and adding the diamine solution C to the linear dibasic acid solution, and collecting a precipitate to obtain an amide salt C; and (3) mixing the amide salt solution B with the amide salt C, adding a catalyst, and conducting melt polycondensation. The prepared branched copolymer has excellent mechanical performance and is suitable for melt blending toughening, melt extrusion spinning, blow-extruded films, hot melt adhesives, and other fields.

Classes IPC  ?

• C08L 77/06 - Polyamides dérivés des polyamines et des acides polycarboxyliques

Abrégé

Disclosed are a tea type differentiation method and system, belonging to the technical field of detection. The method comprises: building a differentiation function by using ionic strengths of 20 compounds as evaluation indexes to discriminate tea types. According to the disclosure, the tea types are discriminated by using relative abundance of 20 compounds in tea, problems in sensory differentiation can be solved, the tea is classified more objectively and scientifically, and the reliability and accuracy of differentiation results are improved. By using three algorithms, the feasibility and accuracy of using 20 discovered compounds for tea type differentiation in a combined manner are validated.

Classes IPC  ?

• G01N 30/86 - Analyse des signaux
• G01N 30/14 - Préparation par élimination de certains composants
• G01N 30/72 - Spectromètres de masse

Abrégé

Erysipelothrix rhusiopathiae primer set.

Classes IPC  ?

• C12Q 1/689 - Produits d’acides nucléiques utilisés dans l’analyse d’acides nucléiques, p. ex. amorces ou sondes pour la détection ou l’identification d’organismes pour les bactéries
• C12Q 1/6837 - Couplage enzymatique ou biochimique d’acides nucléiques à une phase solide utilisant des réseaux de sondes ou des puces à sondes

Abrégé

Bacillus sp., the DW1 strain is deposited in the China Center for Type Culture Collection on Jul. 16, 2021, and the deposit number is CCTCC NO: M 2021889. The growth-promoting bacterial agent of the present disclosure has the ability to dissolve insoluble phosphorus and insoluble potassium and can increase content of readily available phosphorus and readily available potassium in the soil, which has an obvious promoting effect on the growth of soybean and improves soybean yield. The growth-promoting bacterial agent of the present disclosure promotes bacteria and can significantly improve the content of soybean oil. At the same time, it has an affinity of soybean agglutinin and can agglutinate with the soybean agglutinin.

Classes IPC  ?

• A01N 63/22 - Bacillus
• A01C 1/06 - Enrobage ou préparation des semences
• A01C 21/00 - Méthodes de fertilisation
• C12N 1/20 - BactériesLeurs milieux de culture

Abrégé

The present invention relates to the technical field of polyamides. Disclosed is a preparation method for an ultra-high toughness branched polyamide copolymer, comprising the following steps: (1) dissolving a straight-chain dibasic acid with a solvent A to obtain a straight-chain dibasic acid solution, dissolving a diamine B with a solvent B to obtain a diamine solution B, and dissolving a diamine C with a solvent C to obtain a diamine solution C; (2) dropwise adding the diamine solution B into the straight-chain dibasic acid solution to obtain an amide salt solution B; dropwise adding the diamine solution C into the straight-chain dibasic acid solution, and collecting a precipitate being an amide salt C; and (3) mixing the amide salt solution B with the amide salt C, adding a catalyst, and performing melt polycondensation. The present invention also provides a product prepared by means of the method above and an application of the product. The beneficial effects of the present invention are as follows: the prepared branched copolymer has excellent mechanical properties, and is suitable for the fields of melt blending and toughening, melt extrusion spinning, blown film and hot melt adhesive, etc.

Classes IPC  ?

• C08G 69/26 - Polyamides dérivés, soit des acides amino-carboxyliques, soit de polyamines et d'acides polycarboxyliques dérivés de polyamines et d'acides polycarboxyliques
• C08L 77/02 - Polyamides dérivés des acides oméga-aminocarboxyliques ou de leurs lactames
• C08L 77/06 - Polyamides dérivés des polyamines et des acides polycarboxyliques
• C08L 67/04 - Polyesters dérivés des acides hydroxycarboxyliques, p. ex. lactones
• D01F 6/90 - Filaments, ou similaires, faits par l’homme, à un seul composant, formés de polymères synthétiquesLeur fabrication à partir de mélanges de produits de polycondensation comme constituant majeur avec d'autres polymères ou des composés de bas poids moléculaire de polyamides

Abrégé

A green rice insect pest control apparatus (001) comprises an underground insect pest cleaning assembly (1), a rice insect pest cleaning assembly (2), a lifting mounting assembly (3), an insect pest collecting assembly (4), a regulating assembly (5), and a reinforced cleaning assembly (6). The green rice insect pest control apparatus (001) can not only kill insect pests on rice, but also kill insect pests and eggs in the soil, so as to improve the pesticidal efficiency. The pest control apparatus does not need to be classified according to the species of the pest, and has strong applicability.

Classes IPC  ?

• A01M 17/00 - Appareils pour la destruction de la vermine dans le sol ou dans les denrées alimentaires

Abrégé

The present disclosure belongs to the field of livestock molecular biotechnology, and provides kits and methods for pedigree division and paternity testing of domestic pigs. The kits and methods specifically select 14 SSR loci of domestic pigs, especially Anqing six-end-white pigs, and synthesize primers for corresponding loci. Through capillary electrophoresis detection of the ear tissue DNA of 98 Anqing six-end-white pigs, the count of effective alleles, heterozygosity, polymorphism information content, and genetic distance, and exclusion probability at each locus are calculated, the pedigree division of domestic pigs, especially Anqing six-end-white pigs, and paternity testing are conducted. The cumulative exclusion probability of 14 microsatellite loci is 99%. The 14 microsatellite loci selected are polymorphic in Anqing six-end-white pig population, which can be used as effective genetic markers in the production practice of domestic pigs, especially in the pedigree division and paternity testing of Anqing six-end-white pig population.

Classes IPC  ?

• C12Q 1/6888 - Produits d’acides nucléiques utilisés dans l’analyse d’acides nucléiques, p. ex. amorces ou sondes pour la détection ou l’identification d’organismes
• C12Q 1/6858 - Amplification spécifique d’allèles

Abrégé

A theaflavin composition for promoting wound healing, and a preparation method therefor and the use thereof. The main component of the composition is a theaflavin-3-3'-digallate monomer or a theaflavin crude product. When the main component is the theaflavin-3-3'-digallate monomer, the composition further comprises a component A (comprising sodium acetate, chitosan and gelatin), or a component B (comprising glycerol, propylene glycol, triethanolamine and carbomer 940), or both the component A and the component B. When the main component is the theaflavin crude product, the composition further comprises the component B. The composition significantly promotes wound healing in a diabetic mouse.

Classes IPC  ?

• A61K 31/353 - 3,4-Dihydrobenzopyranes, p. ex. chromane, catéchine
• A61K 47/36 - PolysaccharidesLeurs dérivés, p. ex. gommes, amidon, alginate, dextrine, acide hyaluronique, chitosane, inuline, agar-agar ou pectine
• A61K 47/42 - ProtéinesPolypeptidesLeurs produits de dégradationLeurs dérivés p. ex. albumine, gélatine ou zéine
• A61K 47/32 - Composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone, p. ex. carbomères
• A61K 9/06 - OnguentsExcipients pour ceux-ci
• A61P 17/02 - Médicaments pour le traitement des troubles dermatologiques pour traiter les blessures, les ulcères, les brûlures, les cicatrices, les cheloïdes, ou similaires

Abrégé

Disclosed are a heat shock-related gene ZmHsf11 and an application thereof in regulating plant heat tolerance, which belong to the technical field of biology. The present invention reports for the first time a heat tolerance negative regulation related gene ZmHsf11 and a protein thereof. Studies have found that the expression of the ZmHsf11 gene can be induced by high temperature and other adversity stresses. In the present invention, by performing functional identification on the ZmHsf11 gene, it has been discovered that after the ZmHsf11 gene is overexpressed in rice, the survival rate of overexpressed rice plants under heat treatment conditions is significantly reduced. Functional identification is performed on a ZmHsf11 gene mutant obtained in the present invention, and it is discovered that the heat resistance of the mutant that has undergone heat treatment is significantly improved, indicating that the ZmHsf11 gene has a negative regulatory effect on the heat resistance ability of plants, thereby providing a new technical basis for high temperature resistance breeding of maize.

Classes IPC  ?

• C12N 15/29 - Gènes codant pour des protéines végétales, p. ex. thaumatine
• C07K 14/415 - Peptides ayant plus de 20 amino-acidesGastrinesSomatostatinesMélanotropinesLeurs dérivés provenant de végétaux
• C12N 15/82 - Vecteurs ou systèmes d'expression spécialement adaptés aux hôtes eucaryotes pour cellules végétales
• C12N 15/11 - Fragments d'ADN ou d'ARNLeurs formes modifiées

Abrégé

Provided are a homologous recombination mechanism-mediated precise sequence replacement gene editing method, and an element structure. The method comprises: (1) on the basis of the 300-400 bp DNA sequence of a target region, inserting or deleting a plurality of DNA fragments to form an MsDFID sequence, wherein the MsDFID sequence is simultaneously taken as a guide RNA and donor template, and is also known as an MsDFID guide and donor RNA; (2) linking clustered regularly interspaced short palindromic repeats, namely PCRISR, or a Cas9 guide RNA skeleton, or an Escherichia coli CRISPR-Cas3 palindromic repeat sequence to the 3' end of an MsDFID donor template, and the latter three sequences are all used as guide RNA skeletons; and (3) constructing a donor vector by means of using the above-mentioned fusion sequence, and transforming same into Escherichia coli, wherein the inserted or deleted DNA fragments contained in the donor site in the MsDFID donor template are replaced to a corresponding site of the target region.

Classes IPC  ?

• C12N 15/113 - Acides nucléiques non codants modulant l'expression des gènes, p. ex. oligonucléotides anti-sens
• C12N 9/22 - Ribonucléases
• C12N 15/70 - Vecteurs ou systèmes d'expression spécialement adaptés à E. coli
• C12N 15/90 - Introduction stable d'ADN étranger dans le chromosome

Abrégé

A method for determining a grade of black tea by HPLC detection belongs to the field of tea grade determination. The specific steps are as follows: adding known black tea powder samples of different grades into boiling water of 95-100° ° C. for extraction, and filtering with a filter membrane with a pore size in a range of 0.20-0.25 um to obtain black tea sample liquid; measuring contents of ten components by peak area normalization method; standardizing data of the contents of the ten components in a black tea sample solution; carrying out unsupervised principal component analysis; carrying out supervised partial least squares discriminant analysis; carrying out hierarchical clustering analysis on the basis of partial least squares discriminant analysis, and finally establishing a tea grade discrimination model based on HPLC.

Classes IPC  ?

• G01N 30/86 - Analyse des signaux
• G01N 30/30 - Contrôle des paramètres physiques du fluide vecteur de la température
• G01N 33/14 - Boissons
• G01N 30/02 - Chromatographie sur colonne

Abrégé

The present invention relates to the technical field of polyester amide resins, and disclosed is a preparation method for a reprocessable thermosetting polyester amide. The present invention comprises the following steps: (1) heating and dissolving 30-200 parts by weight of a liquid dicarboxylic acid and 15-95 parts by weight of a diamine compound containing β-hydroxyl to form a reaction liquid; (2) adding 0.05-0.5 parts by weight of a catalyst, heating same to 65-100°C in a nitrogen atmosphere and reacting same for 1-6 h; (3) heating the reaction liquid to 100-180°C, and reacting same for 3-18 h; (4) reheating the reaction system of the reaction liquid to 180-240°C, and reacting same for 0.5-4 h; and (5) cooling the reaction system of the reaction liquid to 100-180°C. Further provided is a polyester amide prepared by means of the preparation method. The present invention has the beneficial effect of an amido bond, ester bond and hydroxyl in the polyester amide of the present invention being simultaneously present, such that the polyester amide can be repeatedly processed while having high heat resistance.

Classes IPC  ?

• C08G 69/44 - Polyesteramides

Abrégé

A phosphate-solubilizing microbial agent for maize is provided. The phosphate-solubilizing microbial agent is obtained by fermentation of a strain CR50; and the strain CR50 is Bacillus stratosphericus (B. stratosphericus), which was deposited in the China Center for Type Culture Collection (CCTCC) on Nov. 10, 2020, with a deposit number of CCTCC M 2020721. The phosphate-solubilizing microbial agent has the ability to solubilize insoluble inorganic phosphorus and insoluble organic phosphorus such as calcium phosphate and calcium phytate, which can increase an available phosphorus content in soil, significantly promote the growth of maize, and increase a maize yield. The phosphate-solubilizing strain also has the ability to produce indoleacetic acid (IAA) and siderophore, and can undergo an agglutination reaction with maize agglutinin due to maize agglutinin affinity. The strain CR50 can colonize at maize roots for a long time under the mediation of agglutinin and stably exert the growth-promoting effect.

Classes IPC  ?

• A01N 63/22 - Bacillus
• A01N 25/02 - Biocides, produits repoussant ou attirant les animaux nuisibles, ou régulateurs de croissance des végétaux, caractérisés par leurs formes, ingrédients inactifs ou modes d'applicationSubstances réduisant les effets nocifs des ingrédients actifs vis-à-vis d'organismes autres que les animaux nuisibles contenant des liquides comme supports, diluants ou solvants
• A01N 61/00 - Biocides, produits repoussant ou attirant les animaux nuisibles, ou régulateurs de croissance des végétaux, contenant des substances de composition non connue ou indéterminée, p. ex. des substances caractérisées uniquement par leur mode d'action
• C12P 1/04 - Préparation de composés ou de compositions, non prévue dans les groupes , utilisant des micro-organismes ou des enzymesProcédés généraux de préparation de composés ou de compositions utilisant des micro-organismes ou des enzymes utilisant des bactéries

Abrégé

A dovetail-type embedded connecting piece and an office desk are provided. The dovetail tenon type embedded connecting piece includes a dovetail groove and a dovetail tenon in a mortise-tenon connection with the dovetail groove. The dovetail groove includes a main plate and an auxiliary plate detachably connected with the main plate. A first clamping groove and the dovetail groove are formed by the main board and the auxiliary plate in use. The dovetail tenon includes a left side plate and a right side plate detachably connected to the left side plate, and in a use state, a second clamping groove is formed by the left side plate and the right side plate.

Classes IPC  ?

• F16B 12/44 - Joints pour pieds de meublesJoints d'angle

Abrégé

A method and a system for distinguishing tea type, relating to the technical field of detection. The method comprises using the ionic strength of 20 compounds as an evaluation index to establish a discriminant function in order to identify the type of tea leaves; the relative abundance of the 20 compounds present in tea leaves is used to distinguish the type of tea leaves, overcoming the problems that exist in sensory discrimination, classifying the tea leaves more objectively and scientifically, and increasing the reliability and accuracy of the determining results; three algorithms were used to verify the feasibility and accuracy of using the combination of the discovered 20 compounds for distinguishing tea leaves.

Classes IPC  ?

• G01N 30/86 - Analyse des signaux

Abrégé

13244 is a backbone structure bearing thioether. Also provided is a preparation method for the composite material. The beneficial effects of the present invention lie in that the bio-based composite material containing lignin prepared by the present invention has a relatively good toughness when having 80% of lignin, the utilization rate of lignin is greatly increased, the application field of lignin is greatly widened, and the material has an excellent ultraviolet resistance, and has great industrial prospects and commercial value.

Classes IPC  ?

• C08L 97/00 - Compositions contenant des matières contenant de la lignine
• C08L 77/06 - Polyamides dérivés des polyamines et des acides polycarboxyliques
• C08G 69/42 - Polyamides contenant des atomes autres que le carbone, l'hydrogène, l'oxygène et l'azote

Abrégé

A method for anti-counterfeit inspection of a QR code of an agricultural product based on a watermark library. The method includes establishing a watermark-containing QR code library; tracing a QR code watermark image; and verifying the QR code watermark image. Watermark-containing QR codes are generated by a QR code generation module and a watermark library, and the watermark-containing QR codes are constructed as the watermark-containing QR code library. The watermark-containing QR code library is used to verify the QR code watermark image, and the QR code watermark image is obtained by tracing the watermark-containing QR codes. In the method for anti-counterfeit inspection of a QR code of an agricultural product based on a watermark library, an image watermark library is designed, so that the embedding of a watermark is no longer single.

Classes IPC  ?

• G06Q 30/00 - Commerce
• G06K 19/06 - Supports d'enregistrement pour utilisation avec des machines et avec au moins une partie prévue pour supporter des marques numériques caractérisés par le genre de marque numérique, p. ex. forme, nature, code

Abrégé

A method for preparing field muskmelon oil includes the following steps: S1, removing foreign matter, including: removing the foreign matter in field muskmelon seeds; S2, low-temperature pressing, including: performing the low-temperature pressing on the field muskmelon seeds after removing the foreign matter in step S1 to obtain an oil residue mixture; S3, filtering and removing impurities: filtering the oil residue mixture obtained by the low-temperature pressing in step S2 to remove the impurities to obtain a primary oil; and S4, centrifugal separation, including: centrifugally separating the primary oil obtained by filtering and removing impurities in step S3 to obtain the field muskmelon oil. The new method avoids using high-temperatures resulting in optimal yield of nutritional content and no harmful byproducts.

Classes IPC  ?

• C11B 1/06 - Production des graisses ou huiles à partir de matières premières par pressage
• C11B 3/04 - Raffinage des graisses ou huiles par réaction chimique avec des acides
• B01D 21/26 - Séparation du sédiment avec emploi de la force centrifuge
• C11B 3/00 - Raffinage des graisses ou huiles
• B07B 15/00 - Combinaisons d'appareils à séparer les solides par voie sèche, applicables aux matériaux en vrac, p. ex. aux objets manipulés en vrac
• B01D 29/11 - Filtres à éléments filtrants stationnaires pendant la filtration, p. ex. filtres à aspiration ou à pression, non couverts par les groupes Leurs éléments filtrants avec des éléments filtrants en forme de sac, de cage, de tuyau, de tube, de manchon ou analogue
• A23D 9/04 - Traitement
• C11B 3/16 - Raffinage des graisses ou huiles par des moyens mécaniques
• C11B 1/04 - Traitement préliminaire des matières premières végétales
• C11B 1/10 - Production des graisses ou huiles à partir de matières premières par extraction