26results about How to "Avoid sex change" patented technology

The utility model belongs to the technical field of material cylinder devices, and particularly discloses a full flow guide material cylinder which comprises an inner cylinder, a jacket sleeved outside the inner cylinder and a first bottom plate fixed at the bottom of the jacket, a first flow guide cavity is formed between the side wall of the inner cylinder and the jacket, and a second flow guide cavity is formed between the bottom wall of the inner cylinder and the first bottom plate. The first flow guide cavity is communicated with the second flow guide cavity, a liquid inlet and a liquid outlet are formed in the bottom and the top of the side wall of the jacket respectively, the liquid inlet is communicated with the second flow guide cavity, and the liquid outlet is communicated with the first flow guide cavity. The flowing path enables the heat exchange medium to act on the bottom and the side wall of the material cylinder in sequence, and a heat exchange interface covering the whole area is formed. The directional flow path shortens the circulation time of the heat exchange medium and improves the heat conduction efficiency, so that the production process cycle is shortened and the product quality stability is improved.

This utility model relates to the field of biomedical technology and discloses a professional shaker for gynecological liquid-based cytopathology, comprising a base, an outer shell, an inner shell, and a support assembly. A vibrating base plate is mounted on the top of the base, and a vibrating assembly is mounted on the bottom of the vibrating base plate, located within the inner cavity of the base. The outer shell is mounted on the top surface of the vibrating base plate, and a top cover is detachably connected to the top of the outer shell. A first magnetic connection part is mounted on the bottom of the inner side wall of the outer shell. The inner shell is located within the inner cavity of the outer shell, and a second magnetic connection part is mounted on the bottom of the outer side wall of the inner shell, magnetically connected to the first magnetic connection part. The top of the inner shell contacts the top cover. The support assembly is mounted on the inner wall of the inner shell, and several cell fluid tubes are detachably connected to the support assembly. This utility model enables precise vibration and temperature control, allowing for the simultaneous and efficient processing of multiple gynecological samples, thus improving work efficiency.

The invention belongs to the technical field of biotechnology and protein determination, and particularly relates to confining liquid as well as a preparation method and application thereof. Modified bovine serum albumin and recombinant casein polypeptide are used as core components of the confining liquid, hydroxypropyl-beta-cyclodextrin, polyglycerol fatty acid ester and other auxiliary components are added, and the confining liquid is prepared through a specific technology. The modified bovine serum albumin and the recombinant casein polypeptide have a synergistic effect, so that active sites of the detection carrier can be efficiently sealed; the stabilizing agent and other components are supplemented, so that the stability and compatibility of the confining liquid are improved. The confining liquid is simple and convenient in preparation process, controllable in cost, suitable for various detection carriers such as elisa plates and nitrocellulose membranes, capable of reducing non-specific binding and improving detection sensitivity, and suitable for various biological detection scenes such as enzyme-linked immunosorbent assay.

The invention relates to the technical field of biomedical detection, and discloses a kit for detecting pancreatic cancer based on a fluorescence labeling method and application of the kit, and the kit is composed of eutectic solvent precursor dispersion liquid containing an interface stabilizer and a polycarboxylate regulator. According to the method, the deep eutectic solvent is driven to be separated out from the water phase by utilizing the strong hydration capability of the polycarboxylate regulator, and the microphase enrichment region with low water content is constructed in situ. In the enrichment area, a compact hydrogen bond network limits free movement of water molecules, and a non-radiative transition channel for transferring excited state energy of fluorescent molecules to a hydroxyl vibration energy level of the water molecules is blocked. The unique microenvironment mechanism significantly reduces the fluorescence quenching effect in an aqueous system, greatly improves the quantum yield and detection sensitivity of the fluorescent probe, and effectively solves the technical problem of weak signal in traditional aqueous phase immunodetection.

This invention provides a recombinant human collagen and its purification method. The method involves expressing recombinant human collagen using microorganisms, then heating the supernatant of the lysate or extract at a temperature above 60°C for at least 15 minutes to achieve solid-liquid separation. Finally, column chromatography using a cation exchange column is performed. Compared to commonly used purification methods employing two chromatographic columns, this invention significantly reduces time and economic costs while further improving the purity and activity of the recombinant human collagen. Furthermore, the entire method can be performed under neutral conditions, avoiding protein denaturation or the introduction of new impurities due to acidic solvents.

Embodiments of the present disclosure relate to a display panel and an electroluminescent display apparatus including the same. More particularly, a display panel and an electroluminescent display apparatus can be provided, which can include a first insulating film including a first hole exposing a portion of an upper surface of an auxiliary electrode, a second insulating film including a second hole overlapping the first hole of the first insulating film, an electrode pattern disposed on a portion of an upper surface of the first insulating film and overlapping the second hole of the second insulating film, a first electrode of a light emitting device disposed on the second insulating film, a bank overlapping a portion of an upper surface of the first electrode and disposed on the second insulating film, a light emitting layer of the light emitting device disposed on a portion of an upper surface of the auxiliary electrode, and a second electrode of the light emitting device contacting a portion of the upper surface of the auxiliary electrode overlapping the first hole of the first insulating film, thereby causing the cathode and the auxiliary electrode to be electrically connected to each other.

The application relates to a soluble silk fibroin pellet quick-freezing, separating and collecting device. The device comprises a low-temperature treatment tank, an external heat preservation tank, a feeding assembly, a separating assembly and an electric control system. The low-temperature treatment tank is nested in the external heat preservation tank and is adiabatic; the feeding assembly is arranged between a top cover plate and an adiabatic plate and comprises a material feeding pipe, a liquid nitrogen feeding pipe and a recovery pipe; a liquid drop pipe is arranged in the material pipe and is provided with a heating device arranged inside the liquid drop pipe to prevent freezing; liquid drops fall through the adiabatic plate into liquid nitrogen to be quickly frozen into small balls. The parameters of a stirring paddle can be adjusted to control the particle diameter, and a peristaltic pump and the specification of the drop pipe are used to control the size. The quick-frozen mixture flows into a separating tank through a low-temperature electromagnetic valve, small balls are intercepted by a screen, and liquid nitrogen is recycled. The electric control system is used for regulating and controlling stirring, the electromagnetic valve and heating power. The device can ensure resolubility through low shear quick freezing, the quick-frozen mixture can be freeze-dried in less than 24 hours due to the high specific surface area of the small balls, the cost is reduced through liquid nitrogen circulation, and the flux and particle diameter can be controlled through multi-parameter adjustment, so that the device is suitable for the preparation of silk fibroin and composite materials.

This invention provides a process and system for preparing cooking wine with targeted aroma enhancement and deodorization. It constructs a closed-loop system that connects targeted functional fermentation to high-purity targeted extraction, flavor-free de-alcoholization, and full-cycle quality stabilization and sterilization. This system addresses the core technical issues in turn and is suitable for the standardized preparation of ordinary cooking wine, low-alcohol or non-alcoholic cooking wine, offering advantages in flavor, storage stability, and feasibility for large-scale production.

The utility model provides a double-blade dispersion machine with optimized dispersion effect, which comprises a machine barrel, a driving motor, a rotating shaft, an upper dispersion piece, a conical flow guide cover and a lower dispersion disc piece, the upper dispersion piece comprises an upper dispersion disc and upper dispersion blades, the conical flow guide cover is arranged on the rotating shaft and is arranged between an upper thread adjusting section and a lower thread adjusting section, and the lower dispersion disc piece comprises a lower dispersion disc and a lower dispersion blade. The lower dispersing disc piece comprises a lower dispersing disc and lower dispersing blades, and the inclination direction between the upper dispersing blades and the upper dispersing disc is opposite to the inclination direction between the lower dispersing blades and the lower dispersing disc. The dispersion device has the beneficial effects that the inclination direction between the upper dispersion blade and the upper dispersion disc is opposite to the inclination direction between the lower dispersion blade and the lower dispersion disc, so that multidirectional shear force can be generated, eddy current can be broken, the dispersion uniformity can be improved, and the distance between the upper dispersion disc and the lower dispersion disc can be adjusted through the arrangement of the upper thread adjusting section and the lower thread adjusting section; the device adapts to materials with different viscosities, and the application range is expanded; the conical flow guide cover can promote material circulation.

The invention discloses a low-temperature air high-speed centrifugal machine and a control method. The low-temperature air high-speed centrifugal machine comprises an air filter, a sensor I, a centrifugal compressor, a heat exchanger, a sensor II, a centrifugal cavity, a sample disc, a control panel, a temperature transmitter, a turbo expander, a water-cooling heat exchanger, an electric valve and a silencer. Wherein the air outlet end of the centrifugal compressor is divided into two branches through a flow dividing pipeline, the first branch is communicated with the atmospheric environment through an electric valve and a silencer, the second branch is in fluid communication with an air inlet of a heat exchanger, an air outlet of the heat exchanger is communicated with an air inlet of a turbo expander, the turbo expander is coaxially and fixedly connected with a sample disc, and the sample disc is in fluid communication with the air inlet of the turbo expander. The whole sample disc is located in the centrifugal cavity, airflow expanded and cooled by the turbo expander enters the centrifugal cavity, flows out from the other end after flowing through the internal space of the centrifugal cavity, enters the heat exchanger again for secondary heat exchange, and finally returns to an air inlet main path of the centrifugal compressor to form a closed airflow circulating system. The system collects multi-source signals such as temperature and rotating speed through a PID controller in a control panel, closed-loop dynamic regulation and control are implemented based on parameters preset by a user, and finally precise control over the centrifugal working condition is achieved. According to the centrifugal machine, the centrifugal machine can obtain a higher rotating speed and reach a lower temperature, the biological sample separation effect is improved, meanwhile, the biological sample is more effectively prevented from being denatured or inactivated due to temperature rise in the centrifugal process, and the sample inactivation rate is reduced to a large extent.

The utility model belongs to the field of medicine, and particularly relates to a concentration and spray drying all-in-one machine for extracts in kudzuvine roots, which comprises a base, a first support, a concentration chamber, a first temperature control plate, an electric heating wire, a sealing plate and the like, the first support is mounted at the top end of the base, and the concentration chamber is mounted on the upper portion of the first support in a sleeved mode. An annular cavity is formed in the inner wall of the concentrating chamber, the upper end of the annular cavity is closed, the lower end of the annular cavity is open, the first temperature control plate is installed on the front portion of the concentrating chamber, the electric heating wire is installed in the annular cavity and electrically connected with the first temperature control plate, the sealing plate is installed at the lowest position of the annular cavity, and the bottom end of the sealing plate is flush with the bottom end of the annular cavity. The concentration and drying functions are integrated, so that the integrated operation of extract treatment is realized, the occupied area of equipment is reduced, the cost of the equipment is reduced, pollution and loss possibly caused in the process that the extract is transferred among different equipment can be avoided, and the efficiency and the quality of extract treatment are improved.

The invention discloses a medicine inspection sample preparation method and device, and belongs to the technical field of medicine inspection. According to the method, through the key steps of gradient alkalifying pH linkage control, gradient elution, temperature programming drying quality monitoring, pre-enrichment and the like, accurate treatment of a test solution is realized; the core lies in that a capillary microfluidic analysis chip with a multi-layer composite structure is adopted, the channel size matching and connection design is optimized, and the sample treatment efficiency and purity are improved. The corresponding device integrates an intelligent control system, a pH monitoring module, a laser particle size monitoring module and the like, and full-process automatic control is achieved. The defects that in the prior art, operation is tedious, the automation degree is low, sample loss is large, and a micro-fluidic chip is large in dead volume are overcome, the prepared sample is high in purity and accurate in concentration, the method is suitable for various types of samples to be tested, the accuracy and efficiency of drug inspection can be remarkably improved, and the method has important industrial application value.

The application discloses the technical field of high polymer synthesis and functional material modification, and relates to a preparation method of low-molecular-weight polyacrylamide. The method comprises the following steps: firstly, preparing a double-metal doped multi-level pore carbon nanotube-covalent organic framework composite modification material, and the preparation process comprises the following steps: surface functionalization of multi-walled carbon nanotubes, growth of a covalent organic framework layer, doping of double-metal ions, and subsequent reduction and calcination treatment; then, adding deionized water, acrylamide and the modification material into a three-necked flask, stirring under nitrogen to dissolve the acrylamide, preparing an oxidation-reduction initiator solution, and dropping the initiator solution into the system under the protection of nitrogen, and polymerization reaction is carried out in a constant-temperature water bath at 19-21 DEG C. After the polymerization is completed, the product system is washed, filtered, and finally, low-molecular-weight polyacrylamide is obtained by using a vacuum freeze-drying method. The polyacrylamide prepared by the method has low and controllable molecular weight, and has good solubility and salt resistance.

This utility model discloses an odor sample preparation device, including an odor source storage chamber and bases disposed at the four corners of the lower side of the odor source storage chamber. The odor source storage chamber has a storage space inside, and an anti-volatility sealing cover is provided on the rear exterior of the storage space. A temperature control module is disposed inside the upper rear left side of the odor source storage chamber, a suction pump is disposed inside the left side of the odor source storage chamber, and a controller is disposed on the upper right front side of the odor source storage chamber. This device supports the rapid replacement of different types of adsorption materials (such as activated carbon and molecular sieves) to meet the directional enrichment needs of diverse odor samples (such as explosives, plant fragments, food, etc.), avoiding the limitations of a single material. The temperature control module is electrically connected to the external heating structure and can flexibly adjust the heating mode according to the odor source form (solid or liquid), improving the volatile efficiency of odor molecules while supporting standardized and streamlined operation.

The utility model discloses a kind of industrialized processing equipment of momordica grosvenori, it belongs to drying equipment field, it includes shell and object carrier tray, drying source is arranged in the shell, box mouth is arranged on shell side wall, box door is arranged at box mouth, object carrier mechanism is arranged in the shell, and the object carrier tray is placed on object carrier mechanism;The object carrier tray moves along transverse under the drive of transverse drive mechanism, placing hole is arranged on the upper end of the object carrier tray, crossbeam is arranged above the object carrier tray in the shell, the lower end of the crossbeam is provided with the push part for pushing material in placing hole, the push part is movably arranged, so that the lower end of push part can be rotated upwards and can be automatically reset after passing through placing hole.The utility model aims to provide a kind of industrialized processing equipment of momordica grosvenori, can make momordica grosvenori as far as possible heated evenly, to improve the drying quality of momordica grosvenori.

The invention discloses an active peptide capable of directionally inducing IPSCS cracking, a preparation method of the active peptide and application of the active peptide in a preparation for repairing liver injury. Experiments prove that the active peptide provided by the invention has a remarkable protective effect on a liver injury model induced by cyclophosphamide and shows a definite anti-oxidative stress effect. The result shows that a key path of chemotherapy injury can be intervened from the source by simulating or enhancing an endogenous protection mechanism of the liver. Compared with the existing exogenous synthetic drugs or single-component natural products, the product provided by the invention has the potential advantages of more comprehensive action mechanism and better biogenic property. Meanwhile, the extract is derived from directionally differentiated functional cells, and a brand new thought and material basis are provided for developing a novel chemotherapy liver protective agent which does not affect the chemotherapy curative effect and has good biocompatibility.

This application discloses an atomizer, including an atomizing gas output component, an atomizing plate, and a temperature control component. The atomizing gas output component includes an atomizing chamber and an output channel communicating with the atomizing chamber. One end of the atomizing chamber has an opening, and the output channel is used to output atomized gas. The atomizing plate is disposed at the end of the atomizing chamber with the opening. The side of the atomizing plate facing away from the atomizing gas output component is used to contact the liquid to be atomized. The atomizing plate is used to prepare the liquid to be atomized into atomized gas. The atomizing plate is provided with pores for the atomized gas to pass through. The temperature control component is disposed on the side of the atomizing plate facing away from the atomizing gas output component, and the temperature control component is used to change the temperature of the liquid to be atomized.

The invention provides a Clanis bilineata tsingtauica thick soup and a preparation method thereof, and particularly belongs to the technical field of seasonings. Clanis bilineata larva powder and pig bone soup-stock dry powder are used as core raw materials, and are matched with egg white powder, papaya powder and various seasoning, thickening and freshening auxiliary materials. Through electronic nose detection, W1C, W3S and other sensor response values corresponding to the characteristic fishy smell of the clanis bilineata tsingtauica are all smaller than or equal to 1.0, and effective fishy smell removal of the papaya powder is achieved; meanwhile, the product is outstanding in palatable taste dimension response, balanced in taste dimension response of salty taste, aftertaste and the like, free of obvious irritation to bitter taste and astringent taste, and coordinated in salty and sweet flavors. The fishy smell of the clanis bilineata tsingtauica is removed by using the natural components of the papaya powder, the fresh and fragrant base of the pig bone soup-stock and the freshness enhancing effect of the disodium 5 '-ribonucleotide are combined, so that the thick soup is fresh, fragrant and mellow in taste and good in solubility, meanwhile, the balance of nutrition and flavor is realized through scientific proportioning, the product is convenient to store and ready to eat, and the category of deeply processed clanis bilineata tsingtauica food is enriched.

The invention belongs to but not limited to the technical field of biological extraction, and discloses a high-activity eggshell membrane composite enzymatic hydrolysis extraction process and an extract, the process adopts a composite enzyme system of alkaline protease and papain for directional hydrolysis, and is combined with low-temperature ultrafiltration purification and freeze drying technologies, the total amount of amino acid in the obtained extract is greater than or equal to 79g / 100g, and the total amount of amino acid in the extract is greater than or equal to 79g / 100g. The sodium hyaluronate content is greater than or equal to 4.4 g / 100g, the collagen content is greater than or equal to 6.8%, the water solubility is greater than or equal to 95%, no skin and eye irritation is caused, the method can be widely applied to the fields of food health care, cosmetics, pet food and the like, the technical problems of loss of active ingredients and poor water solubility of a traditional process are solved, and the method is stable and controllable and suitable for industrial production. Through detection, the total amount of amino acid in the extract reaches 79.3 g / 100g, the content of sodium hyaluronate is 4.4 g / 100g, the content of collagen is 6.8%, and the extract is free of skin and eye irritation, can meet the application requirements in the fields of food health care, cosmetics and the like, is mature and controllable in process and is suitable for industrial large-scale production.

The application discloses injectable long-acting collagen and a preparation method and application thereof, and belongs to the technical field of collagen preparation. The application solves the problems of rapid degradation and insufficient mechanical property of collagen after injection into the body, and the problem of inability to have biological safety, good biological activity and injectability. The long-acting collagen is prepared by taking methoxypolyethylene glycol active ester and collagen as raw materials. Amide reaction is caused between the methoxypolyethylene glycol active ester and lysine residues on the collagen, hydrophilic PEG is introduced on the surface of the collagen, a hydration layer is formed, biological enzymes are hindered from contacting the collagen, collagen degradation is delayed, and the single-arm structure of the methoxypolyethylene glycol active ester can avoid product agglomeration and abnormal viscosity caused by excessive cross-linking. The long-acting collagen has a long retention time in the body, has no obvious cytotoxicity, has high biological safety, and maintains cell proliferation, migration and adhesion activity and biological repair functions.

The utility model relates to the technical field of chemical agent discharging leakage-proof equipment, in particular to a chemical agent discharging leakage-proof device, which is provided with a leakage-proof device for protecting a leakage position of a machine and preventing workers from being hurt, and is provided with a cooling device for cooling a liquid agent during discharging and preventing the liquid agent from being denatured, so that the leakage-proof effect is improved. The applicability of the machine is improved; comprising a moving device; the device further comprises a buffering device, a pumping device, a leakage-proof device, a cooling device and a cleaning device, and the buffering device, the pumping device, the leakage-proof device, the cooling device and the cleaning device are all installed on the moving device. The moving device is convenient to move and use the machine, the buffering device buffers the liquid medicament during discharging, the pumping device pumps the liquid medicament, the leakage-proof device prevents workers from being harmed when the pumping device leaks, the cooling device cools the pumping device, and the cleaning device is convenient to clean the buffering device and the pumping device.

The application discloses a portable medicine conveying device and belongs to the technical field of medical product transportation, which comprises a shell, an upper cover rotatably connected to the top of the shell, an inner container placed in the shell, and a plurality of storage grooves formed in the upper surface of the inner container; a heat preservation groove is formed in the shell, a storage battery and an electric heating device are mounted in the heat preservation groove, the electric heating device is powered by the storage battery, and the start and stop of the electric heating device are controlled by a control panel to adjust the temperature in the shell, so that the required thermal environment of medicines is maintained, the stability of the medicines in the transportation process is ensured, the inner container is provided with a plurality of independent storage grooves, a medicine storage cylinder is slidably inserted in the storage grooves, and a sealing cover is arranged, the modular partition storage avoids the mixing of medicines, the classification of different medicines is clear, easy to identify and take, the disorder problem of traditional cloth bags or plastic boxes is solved, and the sealing design of the medicine storage cylinder can effectively isolate moisture, dust or microbial pollution.

The utility model provides a kind of refrigeration tube-picking mechanism and frozen storage device, refrigeration tube-picking mechanism includes driving assembly, jaw assembly and refrigeration structure, driving assembly is used to output in the movement of first direction, second direction and third direction, the first direction, the second direction and the third direction are pairwise arranged at angle, jaw assembly is used to grab box release cryopreserved sample, refrigeration structure has the storage space for placing multiple the cryopreserved sample and can refrigerate the storage space, the top of the storage space has the opening for the jaw assembly to extend into.The refrigeration tube-picking mechanism and frozen storage device provided by the utility model, the process of jaw assembly selecting cryopreserved sample is always carried out inside refrigeration structure, and then the cryopreserved sample can be kept in low-temperature environment all the time, prevent cryopreserved sample denaturation, ensure the safety of sample.

The utility model relates to the technical field of traditional Chinese medicine treatment, in particular to a grinding device for monitoring traditional Chinese medicine ingredients, which comprises a medicine grinder, the medicine grinder consists of a grinding groove and a grinding wheel, and the grinding groove is wide in the middle, narrow in two ends and ship-shaped in the interior; the grinding wheel is oblate, a shaft penetrates through the circle center of the grinding wheel, and the two ends of the shaft exceed the edge of the grinding wheel; electric sliding rails are fixedly mounted on the two sides of the medicine roller through mounting blocks, and guide frames are arranged on electric sliding blocks of the electric sliding rails. According to the device, traditional Chinese medicinal materials are treated by adopting a mode of mechanically driving the medicine roller to grind instead of high-speed rotary cutting, so that the problem of temperature rise caused by friction heat generated by high-speed rotary cutting is avoided, and the method can effectively prevent heat-sensitive components in the medicinal materials from being damaged or denatured; the effective components of the medicinal materials are kept to the maximum extent, and meanwhile, the grinding efficiency is also ensured.

The utility model discloses a material storage module for capsule coffee machine and coffee machine, the material storage module comprises a turntable assembly, a plurality of goods channels are arranged on the turntable assembly along the circumferential direction, each goods channel comprises a material storage channel extending along the vertical direction, the two sides of the material storage channel are provided with limiting parts, the distance between the limiting parts is smaller than the diameter of the opening end of the capsule, and the material storage channel extends along the vertical direction. And the limiting part and the storage channel jointly form a limiting space for accommodating a plurality of capsules. The distance between the limiting parts arranged on the turntable assembly is smaller than the diameter of the open end of the capsule, so that the capsule can be transversely and stably arranged, and the problem that the posture of the capsule is unstable is effectively solved. And secondly, the separation structure can be inserted into the gap between the lowest capsule and the upper capsule when the rotary disc assembly rotates to the preset release position, physical isolation is formed, it is ensured that only the lowest capsule is released, the upper capsule is reliably blocked, and therefore the situation that the multiple capsules fall off at the same time is prevented.

The utility model relates to a knee-joint-imitating anti-impact structure based on shear thickening fluid, and belongs to the technical field of buffering and energy absorption. The structure comprises a main body block body, a soft shell cavity and shear thickening liquid, the shear thickening fluid is sealed in the soft shell cavity, and the soft shell cavity is assembled and filled into the main body block; the main body block body is formed by connecting an upper block body, a lower block body and a thin-wall connecting curved beam and is integrally manufactured by a 3D printing technology; the bottom surfaces of the upper block body and the lower block body are square; the inner side interfaces of the upper block body and the lower block body are formed by stretching a cosine function curve of one cycle along the direction vertical to the paper surface; and the internal interface of the thin-wall connecting curved beam is formed by stretching a cosine function curve of one period along the direction vertical to the paper surface. The special rigidity characteristic of the knee joint structure is utilized, the shear thickening fluid is flexibly packaged, a deformation area is expanded, excellent impact resistance is achieved, and the knee joint structure has the advantages of being light in weight, controllable in size and easy to assemble.