9results about How to "Direct use" patented technology

The invention discloses a molecular property prediction method based on a molecular line graph structure. The method comprises the following steps: firstly, collecting SMILES molecular formulas of drug molecules, and carrying out pretreatment to extract molecular fingerprints and molecular descriptors; then, the molecular line graph structure serves as model input, feature representation of a molecular line graph is calculated through a graph neural network MolGraphTrans based on Transformer, and molecular properties are predicted. According to the method, substructure masks, a multi-head attention mechanism, path coding and distance coding are introduced, so that molecular structure characteristics can be better captured. And finally, the prediction performance is optimized through a low-rank linear layer and a multi-head attention layer. Compared with the prior art, the accuracy and efficiency of molecular property prediction are improved, and the method is suitable for drug screening and optimization.

The invention provides a direct air carbon capture and dual-alkali method carbon capture coupling system, which comprises a DAC device and a dual-alkali method carbon capture device, the dual-alkali method carbon capture device performs primary capture on flue gas and then exhausts the gas into the DAC device through a fan, the dual-alkali method carbon capture device uses an alkaline solution as a CO2 absorption liquid, the CO2 absorption liquid is used as a CO2 absorption liquid, and the CO2 absorption liquid is used as a CO2 absorption liquid. CO2 absorption rich liquid absorbed by the dual-alkali method carbon capture device is conveyed to the DAC device through a pump to be sprayed, the CO2 absorption rich liquid generated by the DAC device flows back to the dual-alkali method carbon capture device to generate an alkaline solution, the exhausted flue gas in the implementation process of the dual-alkali method carbon capture technology serves as capture inlet gas of the DAC system, and the capture efficiency of CO2 is improved; cO2 absorption rich liquid in a dual-alkali method carbon capture technology is used as alkaline spray liquid required in a DAC system desorption process, so that the comprehensive utilization efficiency of alkaline raw materials is improved.

The invention discloses an extract, the extract is from viscum platanifolium, and the extract can improve the content of amino acid in leaves in the growth process of tea trees. The invention also discloses a preparation method and an application method of the extract, and the preparation method comprises the following steps: carrying out vacuum freeze drying on a fresh mistletoe sample, and carrying out ultrasonic extraction with 75% ethanol to obtain a crude extracting solution; freeze-drying the crude extract into powder to obtain crude extract powder; re-dissolving the crude extract powder, and pouring the re-dissolved crude extract powder into medium-pressure chromatographic separation gel to remove fat-soluble substances in the crude extract powder so as to obtain eluent; and concentrating the eluent under reduced pressure, and freeze-drying in vacuum to obtain the extract for increasing the amino acid content of the tea leaves. The extract and the preparation method thereof provided by the invention are simple in steps and convenient to use, the amino acid content of the tea can be increased after the extract is sprayed on the surface of the tea, the improvement rate reaches 35% or above, and the yield and quality of the tea are specifically improved.

The application belongs to the field of household appliances, and discloses an oven, which comprises a box body, a fan cover, a first heating element, a first fan, a second heating element and a heat dissipation element. The fan cover divides the inside of the box body into a cooking cavity and a hot air cavity, and the hot air cavity is provided with an air inlet and an air outlet. The second heating element is arranged at the top of the cooking cavity, and the air outlet comprises a first air outlet facing the second heating element. The heat dissipation element is connected with the second heating element, and the side of the heat dissipation element facing the first air outlet is provided with a wind guide surface for guiding the airflow flowing through the second heating element downward to a food placement area. The oven guides the hot air circulation airflow to the second heating element and the heat dissipation element, expands the heat exchange area by using the heat dissipation element, forces the airflow to carry away heat and is directionally guided through the wind guide surface, reduces the accumulation and dissipation of heat at the top, improves the thermal efficiency, shortens the preheating time, improves the temperature uniformity of the cooking cavity, and helps to prolong the service life of the second heating element and the nearby devices.

The invention discloses a blow-down water recycling device of a coke oven raw gas waste heat utilization system. The blow-down water recycling device comprises a steam pocket, a deaerator, a blow-down flash tank and a blow-down water tank, a drain outlet at the bottom of the steam drum is communicated with the blowdown flash tank, one end of the steam drum continuous blowdown pipeline extends into the steam drum and is higher than the drain outlet at the bottom of the steam drum, the steam drum is further communicated with the blowdown flash tank through a steam drum overflow pipeline, and one end of the steam drum overflow pipeline extends into the steam drum; a drain outlet in the bottom of the deaerator is communicated with a blowdown flash tank, and the inside of the steam pocket is communicated with the blowdown flash tank; sewage draining outlets in the bottoms of the sewage draining flash tanks are all higher than a water seal system of the coke oven ascending pipe; the blowdown flash tank is communicated with a blowdown water tank, and a blowdown outlet of the blowdown water tank is communicated with a water seal system of the coke oven riser. According to the invention, sewage enters the steam pocket and is introduced into the blowdown flash tank through the continuous blowdown pipeline and the periodic blowdown pipeline, and after the blowdown flash tank is expanded, high-concentration salt-containing water in the blowdown water is fed into the recovery system, so that the cyclic utilization of heat energy and demineralized water is realized.

The invention relates to the technical field of curing agent and solidified soil preparation, in particular to a composite curing agent and a solidified soil preparation method thereof.The solidified soil is prepared from Portland cement, calcium oxide, fly ash, gypsum, chopped fibers, zeolite, a microbial agent, ethylenediamine tetraacetic acid and alkyl sulfonate; the function of decomposing harmful substances in the polluted soil can be achieved while the strength of the solidified soil is met, and direct utilization of the polluted soil is achieved.

The two links of acid-containing steam output and direct absorption and utilization are completed in the same closed space, a high-temperature solution containing acid steam and low-temperature spraying liquid used for absorbing steam are output, the two solutions are located in two different containers in the same space, the acid-containing steam leaving the surface of the high-temperature solution is directly absorbed by the low-temperature spraying liquid, and the acid-containing steam is directly absorbed by the low-temperature spraying liquid. Acid, water and heat energy in the acid-containing steam are completely transferred to the spraying liquid to obtain a mixed liquid capable of being recycled, so that the closed space for producing and absorbing the acid-containing steam is in a normal-pressure state or a certain-vacuum-degree negative-pressure state, and as long as the steam produced by the high-temperature solution can be absorbed by the low-temperature spraying liquid, the acid-containing steam can be absorbed by the low-temperature spraying liquid; therefore, the most direct and efficient recovery and utilization of heat energy are completed, and the recovery and utilization of steam can be completed while the low-temperature spraying liquid is directly used to form negative pressure through the ejector.

The utility model provides a multifunctional dust removal gun suitable for a rail operation vehicle, which belongs to the technical field of rail operation vehicles and comprises a power source device, the power source device is connected with the dust removal gun through a connecting pipe, and the dust removal gun is aligned with a filter element. Direct utilization of high-pressure air is achieved, and the dust removal efficiency and convenience are improved.