44results about How to "Good material basis" patented technology

The invention discloses a transverse-furrow and sequential-ridge mellow soil anti-corrosion farming method of a purple soil slope farmland and particularly relates to the field of a soil erosion management technique of the purple soil slope farmland. In the method disclosed by the invention, a transverse furrow is excavated along the contour line on the purple soil slope farmland at the slope length interval which is less than the rill erosion generation critical length of the modified slope surface; the cross section of the transverse furrow is in an arc shape; the formed transverse furrow divides the whole slope farmland plot into multiple small farming units in the transverse slope direction; the two ends of the transverse furrow are connected with the original drainage furrows at the two ends of the slope farmland plot; and the integral farming terrain conditions with alternate furrows and ridges are formed by adopting a sequential-slope ridging farming mode, i.e. alternately farming and ridging in the sequential slop direction and reverse slop direction. The method disclosed by the invention can reduce the water and soil loss and prevent and control the soil erosion of the slope farmland, is beneficial to the enhancement of the water content in the soil of the farmland plot in the descending direction of the transverse furrow, improves the drought resistance of crops, maintains the agricultural productivity of the slope farmland and realizes the sustainable utilization of slope farmland water and soil resources.

The invention discloses a preparation method of fresh and fragrant green tea. The preparation method comprises the following steps of S1: spreading fresh tea leaves in a room for 16-24 hours at the temperature of 16-24 DEG C with the spreading thickness being 4-8cm, thereby obtaining fresh leaves with the water content being 50-65%; S2: removing green: taking the fresh leaves treated in the S1, removing green by using a green removing machine with the rotating speed being 28-32r / min, the temperature being 340-440 DEG C and green removing time being 3-8min, thereby obtaining green-removed leaves with the water content being 45-55%; S3: modeling: kneading and twisting for modeling the green-removed leaves by using a tea kneading machine; S4: drying: by using a tea-leaf drying machine, treating the modeled tea leaves with the temperature of an air inlet of the drying machine being 150-200 DEG C, the upper-leaf thickness being 3-6cm and the drying time being 8-15 min, thereby obtaining the formed leaves with the water content being 15-25%; S5: extracting fragrance: putting leaves treated by S4 into a box body type fragrance extracting machine for extracting fragrance, spreading the leaves till the thickness if 1-3cm, firstly drying for 10-20 min by adopting the temperature of 80-90 DEG C, then drying for 40-60 min by adopting the temperature of 60-70 DEG C, thereby obtaining the tea leaves with the water content being 4.5-6.5%. The preparation method disclosed by the invention is simple in process, short in production period, low in cost and suitable for industrial and large-scale production.

The invention relates to 5-(1H-indolyl-3-methylene)-1,3-thiazolidinyl-4-one derivatives, and a synthesis method and application thereof. By using ethanol and / or water as a solvent, substituted 2-substituted-imino-1,3-thiazolidinyl-4-one and 1H-indolyl-3-formaldehyde are subjected to reflux reaction under the catalytic condition of piperidine through intermolecular dehydration condensation reaction to form methylene linking group, thereby obtaining the 5-(1H-indolyl-3-methylene)-1,3-thiazolidinyl-4-one derivatives. The intermediate 2-substituted-iminothiazolidinyl-4-one is prepared by carrying out cyclization reaction on various monosubstituted ethyl thiocarbamide chloroacetates or chloroacetic acids in a low-boiling solvent under reflux conditions, and the intermediate 2-substituted-imino-3-substituted-1,3-thiazolidinyl-4-one is prepared by carrying out a green environment-friendly synthesis technique on various disubstituted symmetric thiocarbamides and chloroacetic acids. The bioactivity preliminary screening experiment result of all the target compounds on the enzyme molecular level indicates that the target products have certain inhibition activity on PTP1B and CDC25B to different degrees.

The invention discloses a recombinant MSG1 protein monoclonal antibody and a blocked ELISA (Enzyme-linked Immuno Sorbent Assay) method for detecting a haemophilus parasuis mycoplasma specific antibody. A hybridoma cell line 1A7 of an excretion haemophilus parasuis mycoplasma recombinant MSG1 protein monoclonal antibody is preserved with preservation number of CGMCC NO. 4860 and the preservation date of May 13th, 2011. The monoclonal antibody of the haemophilus parasuis mycoplasma recombinant MSG1 protein is excreted by the hybridoma cell line 1A7 with preservation number of CGMCC NO. 4860. The monoclonal antibody as well as the haemophilus parasuis mycoplasma MSG1 recombinant protein and an etiology protein are provided with good reaction specificities. According to the invention, the monoclonal antibody is applied to the blocked ELISA (Enzyme-linked Immuno Sorbent Assay) method for detecting the haemophilus parasuis mycoplasma specific antibody; and the detection condition is optimized through a large quantity of experiments so that the method has the advantages of good repeatability, sensitivity and specificity.