32results about How to "Conform to the characteristics" patented technology

The invention discloses application of H22 liver cancer cell autophagosome DRibbles to the preparation of a liver cancer therapeutic vaccine. Liver cancer is one of the most common malignant tumors in China and can be effectively prevented by developing a liver cancer vaccine; and years of research results prove that tumor cell autophagosome is one of effective vectors for tumor antigen cross-presentation. The application comprises a core technology for extracting the autophagosome DRibbles from human liver cancer cells and proves that the autophagosome can effectively induce anti-tumor immune response of organisms and has a good biotherapy prospect.

The embodiment of the invention discloses a flood forecasting method and system based on historical data to solve a problem of low flood forecasting precision and accuracy. The method comprises the following steps: analyzing the GIS (Geographic Information System) data and the DEM (Digital Elevation Model) data of a forecasting drainage basin, and dividing the forecasting drainage basin into various hydrologic units; carrying out rainfall comparison on historical meteorological hydrologic data under each hydrologic unit with corresponding practical meteorological hydrologic data, determining the historical meteorological hydrologic data matched with rainfall, and weighting with runoff volume obtained by analog computation to obtain a forecasting result of each hydrologic unit; if a certainty coefficient of the forecasting result of each hydrologic unit and the corresponding practical meteorological hydrologic data is greater than or equal to an effective threshold value, utilizing the rainfall capacity of each hydrologic unit and a parameter adopted by analog computation under each hydrologic unit to calculate the flood element of each hydrologic unit; and according to the flood element of each hydrologic unit, carrying out flood forecasting. Floor forecasting precision and accuracy can be improved.

The embodiment of the invention discloses a search result recall method, device, server and storage medium. The method includes: recalling a first recall list conforming to the text similarity rule with the query sentence from the data of the whole network; recalling the second recall list of the query sentence from a predetermined recall result database, and storing in the recall result database determined based on user behavior. The historical query statement and the corresponding recall list, and the historical query statement and the corresponding recall list do not conform to the text similarity rule; the first recall list and the second recall list are fused as the recall result. Through the above scheme, the results that conform to the text similarity rule with the query statement can be accurately recalled, and the results that do not conform to the text similarity rule with the query statement but conform to the user's historical behavior can be recalled. The combined recall result is more comprehensive and conforms to the user's characteristics. , making it possible to personalize the display of search results.

The invention discloses a preparation method of CaCu3Ti4O12. The method comprises a preparation method of CaCu3Ti4O12 crystal powder and a preparation method of CaCu3Ti4O12 ceramic. The preparation method of the CaCu3Ti4O12 crystal powder includes: adopting calcium acetylacetonate Ca(acac)2, copper acetylacetonate Cu(acac)2 and titanium oxide acetylacetonate TiO(acac)2 as the raw materials, using anhydrous ethanol as the solvent, taking anhydrous citric acid as the stabilizer, and conducting low temperature calcination to obtain CaCu3Ti4O12 crystal powder; the preparation method of the CaCu3Ti4O12 ceramic includes: conducting tabletting on the CaCu3Ti4O12 crystal powder, and then performing high temperature sintering to obtain CaCu3Ti4O12 ceramic. The method provided by the invention for the first time takes the organic metal compound calcium acetylacetonate, copper acetylacetone and titanium oxide acetylacetonate as the precursor raw materials, adopts anhydrous ethanol as the solvent, employs anhydrous citric acid as the stabilizer, and carries out simple mixing, drying and low temperature calcination to obtain high purity and good crystal form CaCu3Ti4O12 crystal powder. The method solves the technical problem that with a necessary high temperature sintering process, the solid phase oxide method, sol-gel method and liquid phase synthesis method cannot acquire high purity CaCu3Ti4O12 crystal powder at low temperature.

The application provides a heavy hammer type intelligent material level measurement method and system, and belongs to the technical field of material level measurement. In industrial production, whena weight level meter measures the material level of a silo, the meter usually adopts a continuous and uninterrupted measurement mode, the measurement time interval often depends on the experience of the staff, and frequent measurement reduces the service life of the measuring equipment and easily leads to measurement failure. According to the heavy hammer type intelligent material level measuringmethod and system, the material level of materials in the silo is divided into three tap positions according to a percentage, four material level regions are divided, and corresponding measuring timeintervals are adopted for different material level regions, so that the measuring times are reduced, the measuring frequency is reduced, and the cost of human resources is saved. The method and the system can effectively prolong the service life of measuring equipment, is simple and easy to implement, and is suitable for industrial popularization and application.

The invention relates to the field of ferroelectric ceramic materials and discloses a method for preparing BaTiO3 ceramic.The method for preparing the BaTiO3 ceramic comprises the steps that acetylacetone barium and titanium oxide acetylacetonate serve as raw materials, absolute ethyl alcohol serves as solvent, and by means of low-temperature sintering, BaTiO3 crystal powder is obtained; and by means of high-temperature sintering, the BaTiO3 ceramic is obtained.Acetylacetone salt is adopted as a reaction presoma for the first time, the BaTiO3 ceramic is sintered and prepared, and the novel method for preparing BaTiO3 ceramic is provided.According to the method, the technology is simple, requirements for a reaction system are low, and energy consumption is low.A step-by-step temperature rising method is adopted, low-temperature sintering and high-temperature sintering are conducted, and by controlling sintering time at the different temperatures, the prepared BaTiO3 ceramic is good in crystallinity and superior in dielectric property.

The invention provides a novel portable intelligent detection water purifier. The intelligent detection water purifier comprises a water flow splitting mechanism, a filter element, a water quality induction device, a Bluetooth data transmission device and an anti-wearing and corrosion-resisting shell, wherein the water flow splitting mechanism is a main structure of the intelligent detection water purifier and is composed of a raw water and pure water switching switch, a flow splitting valve, a water faucet connector and a raw water outlet which are connected by connection pieces. The water quality induction device comprises a water flow sensor, a power supply battery and a control board. The intelligent detection water purifier is easy to carry and a user can safely and trustingly put the water purifier on water faucets of different environments at any time and anywhere. Data can be transmitted through Bluetooth without a network by using a cell phone app in a short distance, and the use condition of the water purifier also can be monitored in real time from a third party server (such as a cloud) in a network environment and the user is reminded of replacing the filter element in time. Finally, the aims of safety, intelligence and portability are realized.