Method for extracting and purifying vitexin and isoviextin from cajanus cajan branches and leaves

Gene for regulating and controlling flowering phase of plant, recombinant vector and application

The invention belongs to the field of plant growth, and relates to a gene for regulating and controlling the flowering phase and disease resistance of plants, in particular to a gene for regulating and controlling the flowering phase of plants, a recombinant vector and application. In the research process of disease-resistant breeding, an NBS-LRR type gene NbLOV1 of nicotiana benthamiana is cloned by a research group. A biosignal analysis result shows that the gene is closely related to the response of a plant to fungal pathogens, and an experiment for verifying gene functions by knocking out the gene through gene editing discovers that compared with a contrast, a knockout vector aiming at the NbLOV1 constructed by the method and a plant created by an agrobacterium-mediated transformation method have obvious differences: after the NbLOV1 is knocked out, the NbLOV1 is knocked out, the NbLOV1 is knocked out, the NbLOV1 is knocked out, and the NbLOV1 is knocked out, so that the NbLOV1 is knocked ...

Kiln cleaning machine

The invention discloses a kiln cleaning machine which comprises a guide accelerating pipe, one end of the guide accelerating pipe is provided with a kiln door connecting assembly in butt joint with a kiln door, and the other end of the guide accelerating pipe is provided with a high-pressure air supply assembly, a filling assembly and a filling support assembly which are connected with the guide accelerating pipe. According to the device, the lead column is placed through the filling assembly, the lead column is guided to the accelerating pipe through the high-pressure air supply assembly to be injected into the kiln door, so that coke in the kiln head is cleaned, compared with manual coke cleaning, formed rings can be cleaned under the condition of normal calcining of the kiln, the influence on calcining is very small, the cleaning efficiency is high, and the production period of the rotary kiln is prolonged.

Organic-inorganic hybrid polyoxomolybdate crystal material and preparation method thereof

The invention discloses an organic-inorganic hybrid polyoxomolybdate crystal material and a preparation method thereof. The organic-inorganic hybrid polyoxomolybdate crystal material comprises a polyoxomolybdate crystal, and the chemical formula of the polyoxomolybdate crystal is [Ni(H2O)(C12H8N2)2]2(PMo12O40(VO)2].2H2O, the polyoxomolybdate crystal belongs to a triclinic system, and the space group of the polyoxomolybdate crystal is P-1. The organic-inorganic hybrid polyoxomolybdate crystal material is prepared by adopting a hydrothermal synthesis method. The preparation method of the organic-inorganic hybrid polyoxomolybdate crystal material comprises the following steps: and stirring and mixing molybdenum oxide, ammonium metavanadate, 1, 10-phenanthroline, nickel acetate, phosphoric acid and water, and then putting the mixture in a closed container, reacting for at least 1 hour at least 160 DEG C, and carrying out solid-liquid separation, thus obtaining the organic-inorganic hybrid polyoxomolybdate ...

Steps for breeding high production southern yew to increase pacilitaxel through directional inducement

Piston mechanism of air pressure type sprayer and sprayer provided with same

The invention discloses a piston mechanism of an air pressure type sprayer and the sprayer provided with the piston mechanism. The piston mechanism comprises a cylinder body, a piston and a piston rod, wherein the piston and the piston rod are arranged inside the cylinder body in a connected mode, the piston comprises a base body and an annular elastic part arranged surrounding the outer side of the base body, the base body is connected with the piston rod, an annular protruding edge used for preventing the annular elastic part from deforming is arranged at the upper end of the base body, the annular elastic part is arranged below the annular protruding edge, and an annular sealing wall adjacent to the inner wall of the cylinder body is further arranged on the edge of the annular elastic part. The piston mechanism of the air pressure type sprayer and the sprayer provided with the piston mechanism have the advantages that the elastic force of materials and the opening force generated by ...

Training system and method for fully mechanized coal mining face

The invention provides a training system and method for a fully mechanized coal mining face, and the system comprises modeling equipment and a control console, the modeling equipment is used for building a virtual model, corresponding to a plurality of pieces of face equipment, of the fully mechanized coal mining face, and the control console comprises various types of virtual function controls and is connected with construction equipment. The virtual function controls correspond to the operation parts of the working face devices, so that independent operation is carried out on the virtual models of the working face devices through the virtual function controls, and/or cooperative operation is carried out on the virtual models of the working face devices, and the virtual function controls correspond to the operation parts of the working face devices. Through virtual independent operation and cooperative operation of a virtual model of a plurality of working face devices, the learning efficiency ...

Coal conveyor

The coal conveyor comprises a conveying belt, a first protection assembly and a second protection assembly, the conveying belt is provided with a conveying face, the conveying face is used for conveying coal in the first direction, the first protection assembly comprises at least two first blocking pieces, and the at least two first blocking pieces are arranged on the conveying face at intervals in the second direction; the conveying face can move relative to the first blocking pieces, the first blocking pieces extend in the first direction, coal is suitable for being located between every two adjacent first blocking pieces, the second protection assembly comprises at least two second blocking pieces, the second blocking pieces are arranged at one end of the conveying belt, and the at least two second blocking pieces are arranged on the conveying face in the second direction at intervals; the conveying surface can move relative to the second blocking pieces, the at least two second blocking ...

Method for building simple bisporous mushroom cultivation house on deep groove for improving alkaline land

The invention provides a method for putting up simple double-spore mushroom culture rooms on deep-groove improved saline and alkaline land. In order to put up the double-spore mushroom culture rooms, deep-groove zonal land preparation is carried out on the saline and alkaline land first; straw curtains are vertically spread on four walls of a groove and two sides of an operation channel; two layers of corn straw, cow dung, corn straw and alfisol layers are laid on the bottom of the groove to ground surface, and then are irrigated with saline-alkaline reducing agents; four walls of each culture room are built by use of wall building blocks; partition walls are set up on the long side of each rectangular culture room; shed frames are laid between the partition walls; each culture room is provided with a front door, a back door and two side doors; the roof of each culture room is constructed by use of straw; a drainage ditch is arranged between the adjacent culture rooms; a reservoir is arranged ...

Artificial cultivation method for taxus chinenesis containing high content taxol

The present invention relates to an artificial cultivation method of southern Taxus chinensis with high taxol content, belonging to the agricultural planting field using high and new technology. It is characterized by that according to the characteristics of southern Taxus chinensis which has stronger adaplation for weather, humidity resistance and whose seedlings and young forest growth have need of shade environment said invention can artificially construct a stereoscopic composite community for providing a shade environment for southern Taxus chinensis growth.

Method for extracting and purifying vitexin and isoviextin from cajanus cajan branches and leaves

The invention relates to an extraction and purification method of the component with the Chinese herbal medicine functionality, and aims at providing a method of obtaining monomeric compound Vitexin and Isovitexin through extraction and purification from pigeon pea branches and leaves in a simple, safe, economical and high-efficient manner. The invention has the technical proposal of using the fresh and dried pigeon pea branches and the leaves as raw materials, and adopting the combination of a homogenate extraction technique, an ultrasonic assistance extraction technique, an ultrasonic oscillation flocculation technique, a negative pressure cavitation suspension extraction technique, a macropore absorbing resin collecting technique, an ODS-C18 reversed phase medium pressing silicagel column chromatography technique, a low temperature recrystallization and a recrystallization technique, and then the Vitexin and the Isovitexin with the purity of more than 90 percent are obtained, and the ...

Vapour -pressure type atomizer piston mechanism and install atomizer of piston mechanism

The utility model discloses a vapour -pressure type atomizer piston mechanism and the atomizer of installing the piston mechanism, including cylinder body, piston and piston rod, piston and piston rod link to each other and are provided inside the cylinder body, and the piston includes the base member and encircle the annular elastomeric element in the base member outside, and the base member links to each other with the piston rod, and the base member upper end is provided with and is used for keeping out the annular flange that annular elastomeric element warp, below that annular elastomeric element is provided annular flange, and its advantage of ring packing wall that annular elastomeric element's edge also was provided with near the cylinder body inner wall combines the power that the gentle raw of cutting down output of the elasticity of material itself strutted, under the effect of dual power, strengthens the piston packaging effect, the improvement availability factor.