40results about How to "Achieve direct conversion" patented technology

The invention belongs to the field of fuel cells, and particularly relates to a generating and energy storage integrated device based on direct carbon fuel cells (DCFCs) with a liquid metal positive electrode. The generating and energy storage integrated device comprises a metal molten pool, the liquid metal positive electrode, the tubular solid oxide direct carbon fuel cells (SO-DCFCs) and a fluidization air distributing feeding system, wherein the tubular SO-DCFCs can be blind pipes and through pipes and can be inserted into the metal molten pool vertically or horizontally; the feeding system carries a fuel and a positive electrode material into the metal molten pool by virtue of carrier gas, and substances in the molten pool are stirred. The generating and energy storage integrated device provided by the invention has the advantages that chemical energy in the fuel and surplus electric energy in an power grid are changed into chemical energy in the liquid metal positive electrode to be stored, and the integration of a generating device and an energy storage device is realized; the integrated device is simple and compact, the reactivity of the carbon fuel and the metal positive electrode is high, the property of the cell is good, the friction of the cell caused by liquid state positive electrode fluidization is small, the service life of the cell is long, the seal is easy, the collection is convenient, and a large-scale electric pile is convenient to form.

The invention discloses an aviation power supply system reliability modeling method based on Bayesian network, which comprises the following steps of: establishing an input-output relationship description table for each component of the aviation power supply system; Bayesian network node are constructed correspond to that data of each row of N sub-tables; determining a parent node of each node ofthe built Bayesian network; constructing a parent node with the same name for the element Ci in step 2, and determining the conditional probability distribution of each node on the basis of determining the state of each node of the constructed Bayesian network; determining a target node for the power supply bus bar and calculating the power supply reliability of the aviation power supply system. The corresponding target node is determined for each power supply bus bar, and the power supply reliability of the aviation power supply system is calculated. The invention improves the reliability calculation efficiency of the aviation power supply system.

With the SVM gradient analysis, building a technique process to determine former correlation; then, finding out the correlated parameters to sense index, and creating the detection sample. This invention can provide quantitative analysis data for quality evaluation and level partition.

The invention discloses a high-temperature solid oxide electrolytic cell apparatus coupled with solar photovoltaic photo-thermal. The high-temperature solid oxide electrolytic cell apparatus comprisesan SOEC electrolytic cell, a photovoltaic panel, a heat absorption cavity, a water vapor channel, and the like. A structure is as follows: the middle of the photovoltaic panel is provided with an opening and is fixedly connected with one end of the tubular SOEC electrolytic cell, the outer layer and the other end surface of the tubular electrolytic cell are coated with heat-insulating layers, theinner layer of the tubular electrolytic cell is coated with a solar selective absorption coating, the heat absorption cavity is formed in the solar photovoltaic panel and the SOEC electrolytic cell,one part of gathered solar energy directly irradiates the photovoltaic panel to generate electricity, the other part of the gathered solar energy enters the heat absorption cavity through a round holeto heat the SOEC electrolytic cell, photovoltaic power generation is directly connected with the SOEC electrolytic cell to provide electric energy needed by water electrolysis, and the heat absorption cavity provides needed heat energy. The apparatus has the beneficial effects that solar energy can be directly utilized to realize water electrolysis hydrogen production, extra energy input is not needed, the structure is simple, and the solar energy utilization efficiency is high.

The priority message: to treat fuzzy information from small-sample and avoid evaluation difference from expert's experience, the presented method integrates the information diffusion approximate reasoning and fuzzy dot graph to convert the original conflict sample into a new smooth sample for further treatment. This invention can improve the precision of sense evaluation.

The invention belongs to the technical field of lighting, and particularly relates to a white light laser light source packaging method. The white light laser light source packaging method comprises the following steps that (1) a laser chip is welded to a ceramic support in an inversion or eutectic manner, or the chip is pasted to the ceramic support through glue in a positive mounting manner; (2)the ceramic support is covered with a light conversion medium for converting laser light into white light; and (3) the laser light transmitted by the laser chip and passing through blue light is triggered by the light conversion medium to be converted into white light, wherein the light conversion medium can be any one of transparent fluorescent glass, transparent fluorescent ceramic and fluorescent crystal. A real white light laser light source can be provided, and the extremely-high economic value is achieved.

The invention discloses a preparation method of an electrostatic spinning membrane for tissue defect repair, which comprises the following steps: (i) continuously conveying a solution of a high polymer material through a first liquid supply pipe, and continuously conveying a cross-linking agent solution through a second liquid supply pipe; (ii) mixing the high polymer material solution conveyed from the downstream end of the first liquid supply pipe and the cross-linking agent solution conveyed from the downstream end of the second liquid supply pipe in real time in a main liquid supply pipe positioned at the downstream of the first liquid supply pipe and the second liquid supply pipe to form a spinning solution, and then the spinning solution is conveyed to a spinning electrode of electrostatic spinning equipment through the main liquid supply pipe for spinning, and the viscosity of the spinning solution is controlled according to a preset rule to form an electrostatic spinning film with the fiber diameter corresponding to the preset rule. According to the embodiment of the invention, the viscosity of the spinning solution gets rid of the dependence on the crosslinking reaction time and can be stably controlled.

The invention belongs to the technical field of energy and chemical industry and discloses a method and a device for preparing methane-enriched gas from carbon-containing raw materials. By the circulation of solid particles used as both heat carriers and catalysts, the decoupling-optimizing control reintegration of the gasification of the carbon-containing raw materials and the methanation process of gasification products are achieved so as to obtain the methane-enriched gas, the direct conversion of solid carbon-containing raw materials to the methane-enriched gas is achieved and the device cost and the operating cost are decreased. By the heat-carrying functions of the solid heat carriers and the catalysts, the high conversion rate of the methanation process in a single-section adiabatic reactor is achieved, the circulation of a large number of product gas and multi-section methanation adopted in the conventional fixed-bed methanation process are avoided and the production cost is decreased. The catalysts has the characteristics of in-situ regeneration, convenience in renewal and the like, and thus the requirements of the process on such performances as sulfur tolerance, carbon deposition resistance and service life are greatly reduced.

The invention discloses a coal-fired magnetofluid supercritical CO2 combined cycle power generation system and method. The system comprises a coal-fired magnetofluid generator, an air preheating system, a waste heat boiler and a supercritical CO2 cycle power generation system. The coal-fired magnetofluid generator does not need rotating equipment, is simple in structure, and achieves direct conversion from heat energy to electric energy. The supercritical CO2 power cycle is coupled to the exhaust side of the coal-fired magnetofluid generator, the power generation efficiency and the operation flexibility of the system can be greatly improved, the compactness degree of the system is increased, and the initial investment and the power generation cost of a power station are reduced. Meanwhile, the system is simple in structure and less in equipment, and the control operation difficulty of the system can be reduced. Cold oxygen-enriched air is preheated through the waste heat of a supercritical CO2 power cycle cold end, the cold source loss of the system can be reduced, and the energy utilization efficiency is improved. Energy cascade quality-divided utilization is achieved.

The invention relates to a steroid compound and a preparation method thereof, and in particular relates to a pregnenolone pyrrole compound and a preparation method thereof. The starting raw material is cheap and easily available, the conditions of the reaction process are mild, the equipment has no special requirements and the compound is suitable for industrialized production. The method uses a new synthetic intermediate for synthesis, thus the obtained compound can inhibit the wheat scab pathogen, the chili fusarium oxysporum and the apple Valsa mali.

The invention provides a method and system for eliminating the visual perception perspective effect of the working environment in front of an agricultural machine, and the method comprises the steps: carrying out camera calibration, and obtaining internal parameters of a camera and the installation parameters of the camera; constructing a single-point perspective coordinate conversion formula according to the internal parameters of the camera and the installation parameters of the camera; wherein the single-point perspective coordinate conversion formula is used for converting the coordinate of any point in the perspective picture into a coordinate corresponding to a world coordinate system and a coordinate corresponding to an inverse perspective drawing; in the agricultural machinery operation process, selecting ROI vertexes from perspective pictures collected by the camera, and determining an inverse perspective transformation matrix according to a single-point perspective coordinate transformation formula and ROI vertexes; and according to the inverse perspective transformation matrix, performing inverse perspective transformation on each single point in the region range determined by the ROI vertexes to obtain an inverse perspective drawing after the perspective effect is eliminated. Therefore, end-to-end direct conversion from the spatial ROI to the image ROI can be realized, and the image operand is significantly reduced.

The invention discloses a fully automatic production equipment for glutinous rice cakes. The equipment includes a steaming device, a conveying dragon mechanism and a glutinous rice cake production device arranged in sequence. The cooking device includes a cooking cabinet, a conveying mechanism and a steam generator arranged in the cooking cabinet , the glutinous glutinous rice making device comprises a waxy forming cabinet, and a feeding mechanism arranged in the waxy forming cabinet according to the processing sequence, an extrusion waxy mechanism and a cutting and forming mechanism, and also includes a glutinous waxy mechanism for extruding and waxing. chemical heating device. The automatic glutinous rice cake preparation equipment provided by the present invention can simulate manual production of glutinous rice cakes by setting a steaming device and a glutinous rice cake production device, and can directly convert raw materials into glutinous rice cakes, which has a high degree of automation and saves manpower.

The invention relates to a method for preparing diesel fraction, and particularly relates to a method for preparing diesel fraction through direct conversion of methanol/dimethyl ether. In the invention, the methanol and/or dimethyl ether are/is converted into diesel fraction under certain reaction conditions by the catalyst effect. The catalyst consists of a molecular sieve and an adhesive, wherein the molecular sieve accounts for 60-90% of the catalyst by mass. In the reaction, the conversion rate of the raw material is greater than 90%, and the diesel fraction selectivity in the total hydrocarbon product is 3-56% by weight. The method provided by the invention has the remarkable characteristics of convenience in operation, mild reaction conditions, concentrated product distribution and convenience in subsequent separation operation, and further can obtain the diesel fraction with relatively high output; meanwhile, the problems of diesel shortage and supply tension are relieved to a certain degree.