10results about How to "Moderate concentration" patented technology

The embodiment of the invention discloses a tea steaming control method based on capacitance liquid level detection, and relates to the technical field of tea steaming, the tea steaming control method is applied to the tea steaming function of a tea bar machine, the tea bar machine comprises a liquid container, a water suction pump and a water level detection area arranged on the side wall of the liquid container, and a plurality of longitudinally distributed electrode plates are arranged in the water level detection area; the method comprises the following steps: executing a heat preservation process after executing a first tea boiling and steaming operation according to a preset first tea steaming parameter; after the user performs at least one time of tea water taking operation, the real-time remaining water level in the liquid container is collected through the water level detection area; when the real-time residual water level meets a preset tea making parameter adjusting threshold value, the first tea steaming parameter is adjusted according to the real-time residual water level and the pre-obtained tea steaming frequency corresponding to the first tea boiling and steaming operation, and tea steaming control is conducted according to the adjusted second tea steaming parameter. By dynamically adjusting the tea steaming parameters, it is ensured that the appropriate tea water concentration can be obtained in each time of tea steaming, and therefore the tea drinking experience of a user is remarkably improved.

The application relates to the technical field of blood drug concentration detection, and discloses a blood drug concentration analysis method based on mass spectrometric detection, which comprises the following steps: adopting microfluidic technology in combination with solid-phase extraction to pretreat a blood sample to obtain a concentrated solution, so as to remove interfering components and concentrate target drug molecules; according to the physicochemical properties of the target drug molecules, the concentrated solution is selected to flow through a biosensor or is directly introduced into a chromatographic unit, and the target drug molecules in the liquid phase are converted into gas-phase ions when flowing through the biosensor; chromatography-mass spectrometry is adopted to detect the gas-phase ions or the concentrated solution, so as to obtain mass spectrum data; a machine learning model is used to analyze the spectrum data, to identify the drug types and calculate the concentration of the target drug molecules, and to generate an analysis report. The method is suitable for target drugs with different physicochemical properties, simplifies the detection process, and improves the applicability and accuracy of detection.

This invention discloses an effective method for removing residual silicon from the sample introduction system of an inductively coupled plasma mass spectrometer (ICP-MS), belonging to the field of ICP-MS cleaning technology. The method includes the following steps: Step a, introducing a mixed acid solution into the ICP-MS and rinsing the instrument with acid for a period of time, wherein the mixed acid solution comprises HF, HNO3, and H2O; Step b, introducing ultrapure water into the ICP-MS and rinsing the instrument with water for a period of time. This invention can clean the instrument by introducing the mixed acid solution as a sample, eliminating the need for repeated disassembly and cleaning by personnel, thus ensuring accurate quantification of samples by the instrument.

This invention discloses a macrophage digestion solution and a method specifically for macrophage digestion, comprising the following components: 3-6 parts ethylenediaminetetraacetic acid (EDTA), 4-8 parts ethylene glycol bis(2-aminoethyl ether)tetraacetic acid (EDTA), 8-12 parts fetal bovine serum (FBS), and 90-100 parts phosphate buffer. The method specifically for macrophage digestion includes the following steps: preparing a stock solution of digestion solution, filtering it, and storing it at low temperature for 6 months to obtain the macrophage digestion solution; adding the macrophage digestion solution to a macrophage culture flask; shaking the macrophage culture flask containing the digestion solution to ensure even coverage; adding DMEM culture medium to the settled macrophage culture flask to neutralize the digestion solution, and transferring it to a centrifuge tube; centrifuging the solution in the centrifuge tube at room temperature for 3 minutes; and adding DMEM culture medium to the centrifuge tube after centrifugation to complete the macrophage digestion. This invention achieves high macrophage digestibility and low differentiation rate.

The utility model relates to a cigar tobacco leaf fertilization puncher which comprises an openable punching shovel, the cross section of the punching shovel is in a long rectangular shape, the punching shovel is formed by splicing a left shovel shell and a right shovel shell, a first rod arm and a second rod arm which are used for controlling opening and closing of the punching shovel are arranged above the punching shovel, and the first rod arm and the second rod arm are hinged in a crossed mode. The lower ends of the first lever arm and the second lever arm are fixedly connected with the left shovel shell and the right shovel shell respectively. The cigar tobacco leaf fertilization puncher is novel in structure and reasonable in design, can effectively enlarge fertilizer inlet holes, ensures proper local fertilizer concentration, is not easy to damage roots, and promotes normal growth and development of tobacco plants; meanwhile, the amount of received rainwater can be effectively increased, the fertilizer is fully dissolved, tobacco plants fully absorb nutrients, nutrient residues are effectively reduced, and the utilization efficiency of the fertilizer is improved.

This application relates to the technical field of silicon wafer processing, specifically disclosing a pre-cleaning method for high-efficiency gettering in crystalline silicon heterojunction solar cells. This method includes steps such as pre-cleaning with a mixed acid solution, texturing, post-cleaning with a mixed acid solution and hydrofluoric acid, followed by phosphorus diffusion gettering treatment of the resulting silicon wafer. The mixed acid solution can micro-etch the silicon wafer surface to remove metallic impurities. During the micro-etching texturing process, the silicon wafer surface develops a pyramidal morphology, increasing the specific surface area and thus expanding the gettering area. Simultaneously, because the texturing process uses micro-etching to preserve the mechanically damaged areas on the silicon wafer surface, the combination of texturing and the mechanically damaged areas creates dual gettering centers in the subsequent gettering process. Even if the back side of the silicon wafer is not subjected to phosphorus diffusion gettering, the presence of the mechanically damaged areas on the back side can still achieve a good gettering effect, thereby enabling gettering on both the diffused surface and the non-diffused back side of the silicon wafer, improving the gettering efficiency.

The invention relates to the technical field of constructional engineering, in particular to a drilling and bottom expanding cast-in-place pile construction device and method.The drilling and bottom expanding cast-in-place pile construction device comprises a fixing frame, a positioning rod and a cleaning pipe and further comprises an adjusting plate, the adjusting plate is located on the positioning rod, and the opening sizes of a water inlet and a water outlet in a pile hole during hole cleaning are adjusted through the adjusting plate; when the construction device and the construction method for the bored bottom-expanded cast-in-place pile are used, different from the prior art, the arrangement of the regulation and control assembly has the advantages that in the hole cleaning process, when the water level in the pile hole is close to the underground water level, the water inlet hole can be automatically expanded, the water outlet hole can be shrunk at the same time, and the speed of underground water entering the pile hole can be increased by expanding the water inlet hole; the water outlet is shrunk, so that the speed of discharging water from the pile hole is slowed down, the water level in the pile hole can be ensured to be always higher than the underground water level, and in the hole cleaning process, due to the fact that the water level in the pile hole has the risk of falling due to mud pumping and drilling slag removing, the water level can be effectively prevented from falling below the underground water level through the measure.

The invention discloses a traditional Chinese medicine formula for conditioning female endocrine dyscrasia. The traditional Chinese medicine composition comprises the following raw materials in parts by weight: Chinese angelica, white paeony root and the like, and has a definite range and a preferable formula. The preparation method comprises the following steps: washing, drying, crushing, sieving, decocting twice with water, combining, filtering and concentrating to obtain an extract, and preparing into various dosage forms such as powder. The radix bupleuri and the like have the effects of soothing the liver and regulating qi, the poria cocos and the like have the effects of tonifying the spleen, the glossy privet fruit and the like have the effects of nourishing the liver and the kidney, the moutan bark and the like have the effects of clearing heat, and the gentiana apiata and the like have the abundant effects of comprehensively coping with etiology and symptoms. The accurate dosage range can be adjusted according to individual differences, the dissolution rate of effective components can be improved by medicinal material pretreatment and a unique water decoction process, complete extraction is ensured, and concentration and dosage form diversification meet different requirements. The formula has scientificity, pertinence and reasonability from composition to preparation, and a safe, effective and diversified traditional Chinese medicine scheme is provided for treatment of female endocrine dyscrasia.

The invention discloses a double-rib induction quenching process for a steel track shoe, which comprises the following steps: mounting a positioning device on a machine tool worktable, and sleeving two pin shaft holes of the machined track shoe into a round pin shaft and a prismatic pin to fix the track shoe, so that the surface of the track, which is provided with a landing rib, is vertically arranged; connecting the intermediate-frequency inductor with a moving part of the machine tool so that the intermediate-frequency inductor can move; adjusting the angle of the base to enable the landing rib plane of the track shoe to be parallel to the working surface of the magnetizer of the intermediate-frequency inductor, and adjusting the gap between the landing rib of the track shoe and the magnetizer of the intermediate-frequency inductor; before each section of the landing rib is heated, a water sprayer is started to spray and heat each section of the landing rib, and a medium-frequency inductor is lifted to spray the section of the landing rib; and the track shoe is subjected to tempering treatment. The method is easy to operate and high in machining efficiency, the production cost can be reduced, thermal diffusion during heating of the landing rib can be reduced, thermal deformation of a transition zone between the landing rib and a base body and a pin shaft hole can be reduced, and the depth consistency of a hardening layer is good.

The utility model provides an organic silicon fertilizer irrigation device for asparagus roots, which relates to the technical field of agricultural irrigation and comprises a stirring tank, a connecting pipe and a waterproof shell. The upper end of the stirring tank is provided with a storage tank, the stirring tank is provided with connectors, the outer side of the lower end of the stirring tank is provided with a fixing support, the lower end of the stirring tank is connected with a drainage pipe, the drainage pipe is provided with a filtering tank, the front side of the drainage pipe is connected with a fertilization pump, the fertilization pump is connected with a main pipe, and the main pipe is provided with four sets of sealing connectors. Positioning rods on two groups of elastic plates at the lower end of a T-shaped pipe correspond to positioning holes in the two sides of the center end of a positioning pipe, so that the height positions of the T-shaped pipe and a spray head can be changed, and the irrigation precision is improved; the organic silicon fertilizer solution is directly irrigated to the roots of the asparagus, and the problem that an existing organic silicon fertilizer irrigation device for the roots of the asparagus is prone to being affected by the planting environment in the using process is solved.