52results about How to "Good industry prospects" patented technology

The invention discloses an alumina supported type cerium oxide powder material preparation method which comprises: chemical vapor deposition method is adopted, a cerium metal organic precursor is effectively decomposed in an oxygen atmosphere and in a temperature range of 500-700 DEG C, and CeO<2> nano particles are generated and uniformly dispersed on the support alumina. Experiment parameters of reaction of organic materials and oxygen are changed to accelerate the CeO<2> precursor decomposition, powder size and microstructure are controlled, then cerium oxide nanoparticles are prepared and uniformly dispersed, and toxic waste liquid is prevented from being created. The alumina supported type cerium oxide powder material of the invention has a simple preparation method and short preparation cycle; the produced cerium oxide nanoparticle are uniformly dispersed and widely used as catalytic materials and functional materials in a plurality of fields.

The invention discloses a multi-span greenhouse rainwater collecting and treating reusing device which comprises a water gathering pipe, initial rainwater filtering devices, a double power supply programming controller, a safety diverting well, a modular water storage pond, a pressurizing pump, a multi-medium filter, an ozone generator, a Venturi ejector and a clean water pond, wherein the initial rainwater filtering devices are used for initially realizing filtration of rainwater of 2-5mm; the double power supply programming controller is used for controlling the liquid level of the water storage pond and switching of the initial rainwater filtering devices; the safety diverting well is used for precisely filtering rainwater and controlling the water quantity; the ozone generator and the Venturi ejector are used for generating ozone water. The invention further discloses a rainwater collecting and treating reusing method based on the device. According to the device and method disclosed by the invention, the collected rainwater is disinfected and sterilized by using the ozone water so as to solve the problem that the water quality in the water storage pond is deteriorated, so that the rainwater is recycled, and therefore, the utilization efficiency of a water resource is improved, the regional ecological environment is improved, and an extra economical benefit is further generated.

The invention relates to the technical field of metallurgy, and particularly discloses a biochar-containing composite iron ore pellet for microwave reduction. The composite iron ore pellet comprises apellet core and a pellet shell wrapping the pellet core; the pellet core comprises iron ore powder 1, iron ore powder 2 and biochar; the pellet shell comprises iron ore powder 1; the specific surfacearea of the iron ore powder 1 is greater than or equal to 1656.0 cm<2> / g; and the specific surface area of the iron ore powder 2 is greater than or equal to 853.0 cm<2> / g. Preparation and applicationmethods of the pellet are also disclosed. The composite iron ore pellet has a core-shell structure, the biochar is only distributed on the pellet core, the two kinds of iron ore powder meet the particle size grading requirement in the pellet core, the ubiquitous problem that the performance indexes of a biochar-containing composite iron ore pellet green pellet are relatively poor can be synergistically solved, the microwave reduction performance of the pellet can be improved, and the iron grade, the metallization rate and the reducibility of the reduced metallized pellet are improved.

The invention discloses a Mg2Ge / Mg3Sb2 thermoelectric material with a nanocomposite structure and a preparation method thereof. The thermoelectric material is composed of a Mg3Sb2 matrix phase and a Mg2Ge nanophase, wherein the Mg2Ge nanophase is dispersed in the Mg3Sb2 matrix phase, and the size of the Mg2Ge is 10- 20nm. The present invention prepares thermoelectric materials by melting, melt spinning and sintering combined with discharge plasma sintering. The obtained thermoelectric material belongs to p-type thermoelectric material, which increases phonon scattering, greatly reduces thermal conductivity, and improves Seebeck coefficient. It has good thermoelectric performance.

The invention provides a plant lactobacillus expressing an antimicrobial peptide gene, which belongs to the technical field of genetic engineering. The invention optimizes the nucleotide sequence of the CRAMP protein and can combine with the Usp45 signal peptide to promote the secretion and expression of the CRAMP gene, so that the lactic acid bacteria expression system becomes a food-grade expression system, which can be taken together with the bacterium. The recombinant Lactobacillus plantarum of the present invention can be used as a new type of oral vaccine product with good industrial prospects, which plays a positive role in reducing intestinal inflammation and has important practical significance in promoting the healthy development of the intestinal tract.