11results about How to "Affect activity" patented technology

This invention relates to the field of cell culture, specifically disclosing a cell culture device for constructing cell models, comprising: a culture unit, a medium circulation unit, and a control unit. This invention achieves differentiated regulation of the microenvironment for different cell types by setting up three independent cell culture chambers in the culture unit. Simultaneously, the medium circulation unit continuously filters and collects cell metabolites through circulating media, preventing the accumulation of metabolic waste that could lead to pH imbalance in the culture medium, further affecting cell survival and experimental reproducibility. Furthermore, this invention includes a partition with a functional membrane between the medium circulation unit and the cell culture chambers, allowing for controlled cell interaction by selecting different types of functional membranes.

The invention discloses a pipeline type multi-stage biological deodorization device which comprises a bio-trickling filter structure section, a connecting device, a pre-wetting structure section and a fine treatment structure section, and the connecting height of the bio-trickling filter structure section and an odor output pipe can be adjusted through the bio-trickling filter structure section; the connecting device is arranged at the rear end of the top of the bio-trickling filter structure section; the pre-wetting structure section is arranged at the left moving end of the connecting device; the biological filtration fine treatment structure section is arranged at the right side moving end of the connecting device and can drive a center component in the top of the biological trickling filtration structure section to rotate and stir in a limiting manner, and the connecting device can drive the pre-wetting structure section and the biological filtration fine treatment structure section to synchronously expand and contract; the fillers in the left end and the right end of the top of the bio-trickling filter structure section are clamped and fixed; in conclusion, flexible adjustment, linkage and quick connection and disconnection of the structural sections are achieved through multiple assemblies, and the odor purification quality and the deodorization efficiency are high.

The utility model discloses a cooling device and energy -conserving air conditioner, cooling device includes fan, condenser and energy -conserving module, and the condenser forms the cooling coil for the refrigerant flow, and the fan's air intake mouth is toward cooling coil, energy -conserving module includes water tank and water outlet pipe, and water outlet pipe and water tank intercommunication, and water outlet pipe is connected in condenser, and water outlet pipe is used for cooling cooling coil. Compared with prior art, the present application combines air cooling and water cooling two kinds of heat dissipation mode, and in water cooling heat dissipation system, liquid medium (water) can directly and cooling coil heat exchange, compared with air cooling heat dissipation, the heat transfer coefficient is higher when liquid and solid heat exchange, and the heat exchange effect is better, when the ambient temperature is high, two kinds of cooling mode work simultaneously, to reduce condensing temperature, reduce the equipment power consumption, realize energy -conserving effect. And when water cooling system breaks down, the device can still rely on air cooling system to continue working, greatly improve the practicality of the device.

The invention relates to a catalyst for preparing 1, 3-propylene glycol through hydrogenation of methyl 3-hydroxypropionate and a preparation method of the catalyst, and mainly solves the problems that the activity of the catalyst is reduced due to agglomeration of an active component Cu, and the selectivity of the 1, 3-propylene glycol is low. The preparation method comprises the following steps: (1) forming an ammonia complex ion solution from a main active component Cu and one or more of assistants Zn, Ni, Co, Cr, Pt and Ag, and forming composite nanoparticles under the action of a reducing agent; (2) adding a silicon source and one or more of carrier assistants Zr, La, Ce, Ga, Ti and Al into the solution containing the composite nanoparticles, and forming a silicon dioxide supported composite catalyst under a hydrothermal condition; and (3) carrying out suction filtration, washing, drying and roasting to obtain the catalyst. According to the present invention, the active auxiliary agent and the main active component Cu effectively form the composite particles, and the composite particles and SiO2 are organically combined under the hydrothermal condition so as to improve the dispersity of Cu, such that the activity and the stability of the catalyst are improved;

The utility model discloses a medicament mixing device, which relates to the technical field of medicament mixing, and comprises a shell, a first mixing cylinder is arranged in the shell, a second mixing cylinder is arranged in the shell on one side of the first mixing cylinder, inner cylinders are arranged in the first mixing cylinder and the second mixing cylinder, and the inner cylinders are arranged in the first mixing cylinder and the second mixing cylinder. Holes are formed in the bottom ends of the two inner barrels, a first stirring roller is arranged in the inner barrel of the first mixing barrel, a spiral stirring roller is arranged in the inner barrel of the second mixing barrel, and a wall scraping assembly is arranged on the outer surface of the upper portion of the spiral stirring roller; the bottom end of the first mixing cylinder and the bottom end of the second mixing cylinder are each provided with an independent discharging opening. By arranging a series of structures, the medicament mixing device can perform medicament mixing operation in different states according to different requirements of tumor growth intervention of traditional Chinese medicines in tumor research, so that the influence of heat generated by material friction and medicament reaction on medicament activity during medicament mixing is avoided.

The application discloses a three-dimensional charcoal column-shaped biofilm filler, a preparation method and a sewage treatment system, and relates to the technical field of water treatment and environmental engineering materials. The whole is a six-prism structure, comprising a first structure layer and a second structure layer; the first structure layer is an annular closed structure; the second structure layer is an annular closed structure and is located on the inner side of the first structure layer; the first structure layer and the second structure layer are divided into a plurality of grids by a connecting rib, and a plurality of short fin plates are arranged on the inner wall of the grid. The filler has a large specific surface area and good biofilm formation capacity, can effectively avoid internal blockage, and has more microporous structures and functional groups on the surface of the filler, can release some organic substances and nutrients, can not only optimize the community structure of denitrifying microorganisms, but also can improve the denitrifying enzyme activity and functional gene abundance, so that the surface microorganism's sewage treatment capacity is effectively enhanced.

This invention discloses a high-temperature aerobic fermentation fertilizer made from livestock and poultry manure and straw suitable for saline-alkali land, and its preparation method, relating to the field of mixed fertilizer technology. The apparatus for preparing this high-temperature aerobic fermentation fertilizer made from livestock and poultry manure and straw suitable for saline-alkali land includes a fermentation drum. A feed cover is movably connected inside the fermentation drum, and a discharge cover is movably connected to the outer wall of the fermentation drum. A feed cover is fixedly connected to the right side of the fermentation drum. The method for preparing this high-temperature aerobic fermentation fertilizer made from livestock and poultry manure and straw suitable for saline-alkali land involves rotating the fermentation drum around a fixed axis, turning over the internal pile. An inner convex plate scoops up the bottom pile material and then throws the corresponding pile material downwards, dispersing the bottom pile material onto the top. This allows the pile to maintain a more even temperature during fermentation, resulting in higher microbial activity and significantly improved fermentation efficiency.

The utility model relates to the technical field of sapling cultivation, especially to a fruit tree sapling cultivation device convenient to move, solves the problem that when needing to transplant in the prior art, the operator often needs to spend a lot of time and effort to loosen the soil, disassemble the fixed structure, and even possibly damage the root system of the fruit tree sapling, thereby greatly reducing the efficiency of fruit tree transplanting planting. A fruit tree sapling cultivation device convenient to move, including frame, the inside upper portion and lower portion of frame are all slidingly connected with the bearing plate, and the top two sides of two bearing plates are all slidingly connected with the bearing frame, and the inside of all bearing frames is slidingly connected with a plurality of seedling frames. The utility model solves the problem that the root system of the fruit tree sapling is easily damaged in the traditional transplanting process, affecting the survival rate and growth quality of the sapling. The seedling frame can be smoothly pulled out through the pull frame and the pull block, avoiding damage to the root system and ensuring the healthy growth of the sapling.

The batching tank comprises an aluminum alloy tank body of a hollow cylindrical structure, a feeding pipeline is fixedly installed above the aluminum alloy tank body in a penetrating mode, and a discharging pipeline is fixedly installed on the side face of the lower end of the aluminum alloy tank body in a penetrating mode. A central rotating shaft is rotationally mounted in the middle of the interior of the aluminum alloy tank body, stirring blades with hole structures are fixedly mounted outside the central rotating shaft, and the central rotating shaft is driven by a driving motor fixedly mounted on the upper surface of the aluminum alloy tank body. According to the batching tank for efficiently preparing the ammonia nitrogen degrading microbial preparation, a novel structural design is adopted, preparation raw materials are conveyed into the aluminum alloy tank body through the feeding pipeline, and then a driving motor is used for driving stirring blades to rotate to achieve the purpose of sufficient mixing; in the process, the air is pumped in by the delivery pump and is sprayed out from the oxygen supply nozzle through the connecting hose, so that the oxygen content in the solution is increased, and the influence of insufficient oxygen on flora activity is avoided.

The invention discloses a calcium-based desulfurizing agent and a preparation method thereof. The calcium-based desulfurizing agent is prepared from the following raw materials in percentage by mass: 53-61% of modified calcium hydroxide, 22-27% of modified activated carbon, 4-8% of an alkali metal compound, 3-5% of a metal oxide and 7-10% of a composite adhesive, the modified calcium hydroxide is obtained by carrying out multi-stage hydrothermal reaction on calcium hydroxide and treating and modifying silicon dioxide and sodium silicate; the modified activated carbon is oxidized activated carbon loaded with iron oxide and magnesium oxide. The calcium-based desulfurizing agent prepared by the method has very high activity, the removal efficiency of SO2 in flue gas can be improved, and the utilization rate of the calcium-based desulfurizing agent can also be improved.

The utility model provides a kind of freeze-dried powder's storage device of freeze-dried powder storage field, comprising: jar body and the jar cover of sealing jar body, the annular chute is opened in the outside of jar body, the inside sliding installation of chute is equipped with movable ring, the outside of movable ring is fixed with sleeve block, sleeve block is rotated in the outside of jar body by movable ring and the chute of cooperation;The inside wall of jar body is fixed with semicircular plate, the top of jar body has a semicircular gap by the segmentation of semicircular plate, the top of sleeve block is equipped with semicircular groove. The utility model is rotated by sleeve block to adjust the state between semicircular groove and semicircular plate, and cooperate jar cover, when freeze-dried powder is taken, jar body is closed state, so prevent freeze-dried powder from being influenced activity by external microorganism when taking;Jar body is designed to facilitate subsequent recycling, to avoid pollution environment, and jar cover can also play the role of quantitative taking under the premise of sealing jar body, convenient for user to use.