5results about How to "Uniform characteristics" patented technology

The application relates to the technical field of performance evaluation of a biological aerosol sampler, and provides a biological aerosol sampler performance evaluation method, which comprises the following steps: environment construction: adjusting and maintaining the temperature, humidity, air pressure and air cleanliness in a calibration cabin to a preset target range; aerosol generation and homogenization: generating standard aerosols containing a target tracer in the calibration cabin, and mixing the air in the cabin to form a test aerosol environment with uniform spatial concentration distribution in a sampling area; dynamic sampling: making the detected sampler and a comparative sampler sample at multiple different spatial points in the calibration cabin; data comparison and analysis: performing performance calibration on the detected sampler according to the sampling data of the detected sampler and the comparative sampler. The environment conditions highly close to actual application scenarios are constructed, and the comprehensive performance of the biological aerosol sampler can be scientifically, systematically and quantitatively evaluated and calibrated.

The invention relates to the technical field of plant extracts, and particularly discloses a composite composition containing polypeptide and a plant extract and a preparation method of the composite composition. The preparation method of the composite composition containing the polypeptide and the plant extract comprises the following steps: 1) uniformly mixing the plant extract, pyrroloquinoline quinone, fructo-oligosaccharide, fermented mulberry juice, fermented rhizoma polygonati powder, vitamin B6, vitamin B12, citric acid, pectin and a first stable phase to prepare a prepad solution A; 2) uniformly mixing oyster peptide, sea cucumber peptide, earthworm protein peptide and a second stable phase to prepare prepad fluid B; and (3) adding the prepad fluid A and the prepad fluid B into water by adopting a micro-fluidic process, continuously mixing for a period of time after all the materials are added, putting into a cold trap, rapidly cooling to room temperature, and standing to obtain the composite composition containing the polypeptide and the plant extract. The prepared composite composition containing the polypeptide and the plant extract has the advantage of being good in stability.

The utility model discloses resin drying equipment, which belongs to the technical field of resin drying and comprises a first drying box, a screening mechanism for separating resin material particles is arranged in an inner cavity of the first drying box, and a pushing mechanism for discharging is arranged at the top of the screening mechanism. A second drying box used for containing resin materials is arranged on the side portion of the pushing mechanism, and the side portion of the first drying box and the side portion of the second drying box are fixedly connected with an air outlet of an external air blower through a first air pipe and a second air pipe correspondingly. According to the resin screening device, the frame plate and the screen mesh can be driven to generate vibration for screening by driving the vibration machine, small resin particles can flow out through the screen mesh, large resin particles can stay at the top of the screen mesh, the resin particles with the same size are located in the same space, and the resin particles with the same size can be conveniently stored and used; the production efficiency and the resource utilization rate are improved.

The embodiment of the present invention relates to a soil sealing herbicide adjuvant and a herbicide including the same, a method of use and an application thereof, belonging to the field of pesticide adjuvants, and comprising the following raw materials in parts by weight: 1 to 3 parts by weight of a water retainer, 4 to 18 parts by weight of a film former, 0.5 to 3 parts by weight of an antioxidant, 1 to 6 parts by weight of a dispersant, 4 to 30 parts by weight of a penetrant, 5 to 20 parts by weight of an emulsifier, 0.2 to 2 parts by weight of a suspending agent and 20 to 90 parts by weight of a solvent, wherein the weight ratio of the water retainer to the film former is 1:4 to 7; the weight ratio of the dispersant to the penetrant is 1:4 to 8. The adjuvant of the present invention can effectively improve the weed sealing effect of the soil sealing herbicide, prolong the weed sealing time, and reduce the risk of pesticide damage.

A manufacturing method of a three-dimensional laminated fabric comprises the following steps that an nth piece of fabric is knitted through an nth set of fabric, n is a positive integer arithmetic progression with the tolerance being 2, an (n + 1) th piece of fabric is knitted through an (n + 1) th set of fabric, and the left half side of the (n + 1) th piece of fabric is located above the right half side of the nth piece of fabric; after the nth piece of material and the (n + 1) th piece of material are woven into a section of length of 1, the nth piece of material and the (n + 1) th piece of material are sewn by yarn at the overlapping position of the nth piece of material and the (n + 1) th piece of material to form a sewing point; all the woven sheet materials form a three-dimensional laminated fabric, and the three-dimensional laminated fabric is cut and processed to form the three-dimensional laminated fabric. A sewing point is generated after the sheet materials are woven for a certain distance, at the moment, the positions of the sheet materials are limited by a flat knitting machine or a knitting needle, the stress and position differences of the sheet materials are not large in the sewing process of the sewing points, the overall characteristics of the three-dimensional laminated fabric composed of the multiple sheet materials are uniform and consistent, the overall shape of the manufactured three-dimensional laminated fabric is stable, and the three-dimensional laminated fabric has the advantages of being simple in structure and convenient to use. And no abrupt change exists.