46results about How to "Good potential" patented technology

The invention relates to the technical field of sandstone type uranium ore geological exploration, and particularly discloses a paleovalley type uranium ore exploration method. The method comprises the steps that 1, field core logging is performed, paleovalley sandstone core features are acquired through geological and geophysical prospecting and hydrological logging, and a drilling comprehensive histogram is drawn; 2, mineral features of the paleovalley sandstone core are acquired through sampling the sandstone core and performing geological and geophysical prospecting sampling analysis; 3, a paleovalley planar map and a paleovalley profile map are drawn, and paleovalley sand body strata are divided according to drilling data and sandstone core logging; and 4, an oxidation region and a restoration region are divided according to the paleovalley sand body strata, an oxidation zone front line of an interface of the oxidation region and the restoration region is determined, a delineated uranium ore body is analyzed through drilling, searching and verifying. According to the exploration method, the ore-forming environment of the paleovalley type uranium ore can be effectively judged, division for the paleovalley sand body is performed, a preferable ore-finding area is delineated, and a technical method and a basis are provided for ore-finding of the paleovalley type uranium ore.

The invention relates to preparation of protamine gold nanoclusters and application in analogue enzyme color comparison and fluorescence detection. The protamine gold nanoclusters not only have activity of horseradish peroxidase and oxidase, but also have fluorescent characteristic. Hereby, a protamine gold nanocluster analogue enzyme visual color comparator and a fluorescence sensor are established respectively and are used for detecting heavy metal ions. The protamine gold nanoclusters are prepared simply and conveniently, are low in cost, and have excellent fluorescence stability and chemical stability, and the shortcomings that fluorescence of traditional dyestuff is short in service life, photobleaching occurs easily and the like can be overcome; a fluorescence method is high in sensitivity and good in stability, and expensive instruments are not required; and analogue enzyme catalytic color comparison is sensitive and environment-friendly, and can be used for field real-time monitoring. The protamine gold nanoclusters are expected to be expanded and applied to detection and analysis of related substances in the fields of environment and biomedicines and disease markers, and have wide application prospect.

The invention particularly relates to a xanthine oxidase inhibitory peptide. The amino acid sequence of the xanthine oxidase inhibitory peptide is Glu-Glu-Ala-Lys (EEAK). The IC50 value of the tetrapeptide EEAK on xanthine oxidase inhibitory activity is 173.00+/-0.06 [mu]M, the tetrapeptide EEAK has a continuous and stable inhibitory effect on xanthine oxidase, and the tetrapeptide EEAK has the outstanding advantages of safety, no toxic or side effect, easiness in absorption, industrialization and the like. The active tetrapeptide EEAK or the derivative thereof can be used for preparing gout treatment/prevention medicines or used as a functional food additive for long-term treatment and health care of gout patients, and has a wide application prospect and very important significance.

The invention provides a biomedical metastable beta type Zr-Nb alloy ingot casting. The biomedical metastable beta type Zr-Nb alloy ingot casting is composed of components including, by mass percent, 10% to 50% of Nb, 0.05% to 0.15% of O and the balance Zr and inevitable impurities. In addition, the invention further provides a method for preparing the Zr-Nb alloy ingot casting. The method comprises the steps that firstly, raw materials are weighed and mixed to be pressed into a self-consuming electrode block; secondly, combined welding is carried out to obtain a primary self-consuming electrode; thirdly, smelting is carried out to obtain a primary ingot casting; fourthly, combined welding is carried out to obtain a secondary self-consuming electrode; fifthly, smelting is carried out to obtain a secondary ingot casting; sixthly, combined welding is carried out to obtain a three-time self-consuming electrode; seventhly, smelting is carried out to obtain a finished product ingot casting. According to the alloy ingot casting, the content of Zr in the alloy element is higher than the content of Zr-Nb base alloy for traditional nuclear engineering, the chemical component uniformity is good, an alloy bar obtained through machining treatment of the finished product ingot casting has the good comprehensive mechanical property, and the ingot casting has the good application prospect in the surgical implant field of the orthopedics department, the dentistry and the like.

The invention provides an indium zinc sulfide/zinc ferrite composite photocatalyst as well as a preparation method and application thereof. The preparation method comprises the following steps: a) mixing an iron source, a zinc source and polyvinylpyrrolidone in the presence of a first solvent, performing electrostatic spinning, and calcining to obtain ZnFe2O4 nanofibers; and b) mixing a zinc source, an indium source and a sulfur source in the presence of a second solvent, adding the ZnFe2O4 nanofiber obtained in the step a), and carrying out solvothermal reaction, so that the obtained ZnIn2S4 nanosheet is loaded on the ZnFe2O4 nanofiber to obtain the indium zinc sulfide/zinc ferrite composite photocatalyst. Compared with the prior art, the preparation method provided by the invention has the advantages that a two-dimensional ZnIn2S4 nanosheet photocatalyst is loaded on one-dimensional zinc ferrite (ZnFe2O4) nanofibers through a low-temperature solvothermal method, so that the ZnIn2S4/ZnFe2O4 nano composite material is obtained, and the composite material can be used for carrying out photocatalytic degradation on waste gas so as to effectively treat the waste gas.

The invention relates to the technical field of oil field oil production engineering and belongs to a combined type double jet flow nozzle used for an oil-water well oil layer ground control underground level drilling device. The nozzle is designed for solving problems that a prior nozzle can only produce common continuous jet flows and rock crushing efficiency is low. The nozzle is composed of a pressing cap 1, a rotation body 2 and a nozzle base 3, wherein the right end of the pressing cap 1 is threaded to the left end of the nozzle base 3; the rotation body 2 is disposed in the nozzle base 3 and is pressed with the aid of the pressing cap 1. The nozzle is mainly applied to field construction of the oil-water well oil layer ground control underground level drilling device and has advantages of being simple in structure and capable of converting common continuous jet flows into rotation jet flows and thus achieving high rock crushing efficiency and the like.

The invention discloses a halogen-free flame retardant polycarbonate (PC) composite material and a preparation method thereof. The halogen-free flame retardant polycarbonate (PC) composite material is prepared from the following components in percentage by mass: 75%-95% of polycarbonate (PC), 0.05%-0.1% of a halogen-free flame retardant, 5%-15% of organic montmorillonite, 0.1%-1% of anti-dropping agent, 0.1%-1% of a hydrolysis-resistant stabilizer, 0.1%-0.5% of an antioxidant and 0.1%-1% of a lubricant. Compared with the prior art, a sulfonate halogen-free flame retardant and organic montmorillonite adopted by the preparation method have good flame-retardant synergistic effect, so that the prepared polycarbonate (PC) composite material has high flame resistance, is halogen-free, non-toxic, safe, efficient, capable of achieving UL-94V-0 level and preventing melting and dropping and also capable of improving the performances such as impact strength, rigidity, heat resistance and processing performance of the material, and has good potential and application prospect.

The invention relates to an environmental protection PVC color cake. The environmental protection PVC color cake comprises 38 to 45 parts of PVC paste resin, 33 to 42 parts of PVC resin powder, 28 to35 parts of poly amino resin, 32 to 39 parts of a pigment, 20 to 32 parts of diatomite, 8 to 13 parts of zinc stearate, 12 to 16 parts of stearic acid, 6 to 11 parts of nanometer zinc oxide, 3 to 6 parts of organic tin, 2 to 5 parts of organic antimony, 11 to 15 parts of epoxy soybean oil, 6 to 12 parts of cellulose, 4 to 9 parts of silica, 30 to 45 parts of deionized water, and 16 to 23 parts ofglycerin. Novel materials are added into an obtained base material, and dispersion grinding is carried out so as to obtain the environmental protection PVC color cake. The environmental protection PVCcolor cake is prepared from the novel environment-friendly materials at a scientific and reasonable ratio, the common environment-friendly safe raw materials are adopted in the formula, so that the obtained environmental protection PVC color cake is high in safety, uniform in coloring, low in manufacturing cost, and excellent in application potential, is convenient to use, and is economical.

The invention relates to a point cloud segmentation method for a power corridor scene, which comprises the following steps of: training and adjusting a convolutional neural network with a structure with six stages, and transmitting disordered point clouds as input to the convolutional neural network which is trained and adjusted for segmentation. The method has high change adaptability to angle and shape changes of objects in an electric power corridor scene; moreover, the convolutional neural network does not add artificial preset characteristics, and the object is segmented through a learning method, so that the objective facts are reflected better. The work of using the convolutional neural network method is to design a network architecture, which is time-saving and labor-saving compared with the design of manual features. In addition, compared with a deep learning network using voxels, the used convolutional neural network directly uses point cloud input, and the calculated amountand the intermediate variable storage space are greatly reduced. And finally, as there are few data sets of the electric power scene, the data sets are increased by using a transfer learning method, and the generalization ability of the model is improved.

The invention discloses a sprint training machine which comprises a running machine frame. Small carrier rollers are arranged between running frames of the running machine frame, a running belt attached to the small carrier rollers is arranged outside the small carrier rollers, the two ends of the running belt are respectively provided with a fixing roller in belt transmission fit with the running belt, the fixing rollers are installed at the two ends of the running frames respectively, the two ends of the running frames are respectively provided with a damping adjustment mechanism, a tension sensor is installed on a support of the running machine frame, a tying strip is connected to the tension sensor, and a display device is installed at the top of the support of the running machine frame. The sprint training machine is simple in structure and convenient to operate, an actual competition can be conveniently simulated in the training process, the training efficiency of sprinters is improved, particularly, tension values generated in the running process of the sprinters can be led out through the tension sensor, and effective reference data are provided for the aim that coaches more scientifically adjust the exercise training methods and better exploit potential of the sprinters.

The invention relates to a synthetic method for a cyanophenyl compound. The method comprises the following steps: reacting a compound as shown in a formula (I) which is described in the specification with a compound (i.e., N-cyano-N-phenyl-p-toluenesulfonamide) as shown in a formula (II) which is described in the specification in an organic solvent in the presence of a catalyst, ligand and an auxiliary agent, and carrying out treatment after completion of the reaction so as to obtain a compound as shown in a formula (III) which is described in the specification. In the formula (III), R is selected from H, C1-6 alkyl groups, C1-6 alkyloxy groups, a nitro group, a cyano group or a phenyl group. The method employs cooperation of a specific reaction substrate, the catalyst, the ligand, the auxiliary agent and the organic solvent to realize high yield of the cyanophenyl compound; so a novel synthetic method for the cyanophenyl compound is provided, and the method has good industrial production prospect and potential.

The invention provides an S-shaped bent waveguide structure with offset and grooves. The S-shaped bent waveguide structure comprises an input straight waveguide, two bent waveguides with opposite curvatures and the same radius, an output straight waveguide, offset at each waveguide joint and the grooves filled with low-refractive-index media. The S-shaped bent optical waveguide structure with the offset and the grooves is characterized in that certain offset is introduced into the connection part of the input straight waveguide and a first bent waveguide section, the connection part of bent waveguide sections with opposite curvatures and the same radius and the connection part of a second bent waveguide section and an output straight waveguide section in an S-shaped waveguide respectively; two grooves with the same shape are added to the outer sides of two bent arc sections respectively, the grooves are filled with air, waveguide core widths are consistent, and a small difference value exists between the refractive indexes of a waveguide core layer and a wrapping layer. The S-shaped waveguide with a small refractive index difference can generate obvious bending loss under a small bending radius, transition loss and radiation loss existing in the S-shaped bent waveguide can be correspondingly reduced by introducing the offset and grooves with proper sizes, and therefore the low-loss transmission of the S-shaped bending waveguide is achieved. According to the invention, compact-size and low-loss optical path design in optical interconnection can be realized.

The invention discloses an immobilized Helianthus tuberosus L. fructan excision hydrolytic enzyme and a preparation method thereof. The method includes any one of the following methods that in the first method, D201 macroporous anion resin serves as a carrier of Helianthus tuberosus L. fructan excision hydrolytic enzyme liquor, after adsorption and cooling under the conditions that the temperature is 10-45 DEG C and pH is 4.0-6.0, a glutaraldehyde solution with the final concentration being 0.1-0.5% serves as a cross-linking agent, and immobilized enzyme is obtained after cross-linking, washing and drying at 2-25 DEG C; in the second method, Helianthus tuberosus L. fructan excision hydrolytic enzyme liquor is added into a sodium alginate solution to be evenly mixed, a mixed solution is prepared, the mixed solution is added into a calcium chloride solution dropwise, filtering is conducted after the mixture stands still and is immobilized, and filter cakes are washed and dried to obtain immobilized enzyme. The enzyme recycling and utilizing rate, operation stability and storage stability of the immobilized enzyme prepared through the technical scheme are remarkably increased, and accordingly the prepared immobilized enzyme has good potentials in actual industrial application.

The invention belongs to the technical field of preparation and application of functional nano materials, a gold nano-cluster synthesized by taking cellulase as a template is successfully prepared byadopting a one-pot method, the nano-cluster shows red fluorescence under the irradiation of a 365nm ultraviolet lamp, the maximum excitation wavelength is 560nm, and the maximum emission wavelength is680nm. The invention also provides a method for fluorescence quantitative detection of metal ions, papain and ascorbic acid by utilizing the cellulase gold nano-cluster. The method is simple and convenient to operate, short in time consumption and easy to realize. The cellulase-coated gold nano-cluster prepared by the invention not only enhances the activity of the cellulase, but also can be applied to the aspects of environmental monitoring, food and medicine, agricultural production and the like on the basis of the capability of tracking biomolecules by strong red fluorescence.

The invention discloses an urban black and odorous water body grading method based on spectral matching. The method comprises the following steps: dividing actually measured water body remote sensingreflectivity into six grades according to chromaticity judged in the field; taking the mean value of the actually measured water body remote sensing reflectivity of each grade as a standard spectrum of each grade; performing spectral analysis on the six levels of standard spectra to obtain spectral difference waveband ranges among different levels of water bodies; and constructing an urban black and odorous water body grading method based on spectral matching to distinguish water bodies of all grades one by one; and classifying the distinguished urban water bodies with various chromaticity grades into water body grades with different black and odorous degrees, wherein the overall grading precision is 77.03%.

The invention relates to environment-friendly PVC plastic dipping liquid. The environment-friendly PVC plastic dipping liquid comprises the following raw materials of: 37-42 parts of PVC resin powder,23-32 parts of PVC paste resin, 25-34 parts of pigment, 15-23 parts of butyl rubber powder, 12-18 parts of rubber oil, 11-15 parts of silicon crude rubber, 9-13 parts of vinyl silica gel, 8-15 partsof light nano calcium carbonate, 5-9 parts of nano zinc oxide, 7-14 parts of milk crude rubber, 7-18 parts of tripalmityl citrate, 3-5 parts of organic stabilizer and 30-46 parts of ionic liquid, newmaterials are added to the basic raw materials, and dispersion and grinding are performed, so that the environment-friendly PVC plastic dipping liquid. The environment-friendly PVC plastic dipping liquid has good safety, no pollution, uniform coloring, convenient use, good economy, low manufacturing cost, good potential, a good plastic dipping effect and a good plastic dipping property, and is environmentally friendly.

The invention provides an orally-administered decoction and an externally-applied poultice for treating cholelithiasis. The orally-administered decoction and the externally-applied poultice have the advantages that precise cholelithiasis treatment and prevention effect is achieved; due to non-invasion property and low side effect of traditional Chinese medicine as well as compressive synergistic effects such as effect on biliary tract dynamics, proportion change of components in bile, bile duct infection reduction and application in a perioperative period, the traditional Chinese medicine has good potential and promising development prospect in cholelithiasis treatment.

The invention discloses a tripeptide with ACE (angiotensin converting enzyme) inhibiting activity and an application thereof. The amino acid sequences of the ACE inhibiting tripeptide are separately HGR, WAK, CMK, AMR, LEW and FPK, the molecular weights of which are separately 368.40, 403.49, 380.52, 376.48, 446.51 and 390.49 Da. The ACE inhibiting peptide has a remarkable inhibiting effect to theACE, has the characteristics being safe, free of toxic and side effects, easy to absorb and the like, can be applied to foods, health-care products and blood pressure reducing drugs as functional components, and has a wide application prospect and quite important significance.

The invention provides a method for measuring mercury element content of gangue or fly ash. The method comprises the following steps of S1, test sample digestion, S2, electrochemical detection, and S3, mercury content calculation. The method utilizes unique processes and technological parameter selection, produces a good measurement result, has high accuracy and sensitivity, provides a brand new measurement method for mercury element content determination, and has good application value and prospect in industry and scientific research.