81 results about "High oxygen" patented technology

The invention discloses a molecular film type automotive nitrogen and oxygen separation device which comprises a turbocharger, a nitrogen and oxygen separator, a gas inlet valve, a gas outlet valve, a negative pressure pump and an electric control throttling valve. The turbocharger is driven by a turbine in an automobile turbocharger, so that the air is compressed to be conveyed to two paths of the nitrogen and oxygen separation device, the nitrogen and oxygen separation device can separate oxygen from the air, the air with high oxygen content is output, and the air is supplied to an engine for use through the gas outlet valve. The two paths of the nitrogen and oxygen separation device work alternately, when the temperature of the two paths of the nitrogen and oxygen separation device is too high to influence oxygen production efficiency, a main air inlet pipeline is opened to provide air normally by controlling the opening degree of the electric control throttling valve, and thus the phenomena of gas circuit plugging and engine stalling are avoided. According to the automotive nitrogen and oxygen separation device, the two branch paths work alternately, high concentration oxygen can be supplied to the engine continuously so that fuel can burn and act, and the burning utilization rate of the fuel is improved.

The invention discloses an intelligent cooperative regulation and control method and system for dissolved oxygen in a haematococcus culture solution, relates to the field of bioengineering, and controls a decision-making layer to dynamically switch between a growth promotion regulation and control mode and a stress induction regulation and control mode based on biomass data and physiological status data in a haematococcus culture stage so as to realize cooperative regulation and control of dissolved oxygen, illumination, pH and a carbon source. According to the method, a growth promotion mode and a stress induction mode are dynamically switched, biomass accumulation is promoted through dissolved oxygen sine wave pulse fluctuation in the vegetative period, astaxanthin synthesis is induced through high-oxygen and low-oxygen circulation and blue light regulation in the stress period, and compared with traditional static regulation, the biomass is increased, and the yield of astaxanthin is increased. A light-oxygen synergistic factor k is introduced to dynamically adjust the fluctuation range of dissolved oxygen, the problem of illumination-dissolved oxygen mismatching is solved, and the photosynthetic efficiency is improved; a stress intensity index SI is established, stress parameters are adaptively optimized based on the astaxanthin synthesis rate, cell damage caused by over-stress is avoided, and the stability of the astaxanthin synthesis rate in the stress period is improved.

Existing pulse oximeters have impaired accuracy in measuring blood oxygen levels (SpO2) in patients of color, where the presence of melanin in the skin tends to interfere with measurements of pulse oximetry, resulting in an overestimation of SpO2. Thus, the pulse oximeter often reports a higher oxygen saturation for patients with darker skin tones, often with increasing bias as the actual saturation (SaO2) decreases. This bias is further reinforced by calibration based on individuals with light skin pigmentation, which may lead to inequitable healthcare for patients of color. Our proposed solution is to modify current pulse oximetry calculations—which utilize the relative tissue absorbance of red and infrared light to estimate SpO2—to account for the concentration of melanin by additionally measuring the skin absorbance of UV˜A light. This derived concentration of melanin can then be used to modify the pulse oximetry algorithm output, thus estimating SpO2 more accurately for patients of color.

The invention relates to the technical field of ferrite single-crystal materials, in particular to a treatment method for improving the ferromagnetic resonance line width of spinel NiZn ferrite single-crystal pellets, which comprises the following steps: annealing the spinel NiZn ferrite single-crystal pellets under the conditions of high oxygen pressure and high temperature, slowly cooling to room temperature, and releasing the pressure after the annealing is finished, thereby obtaining the spinel NiZn ferrite single-crystal pellets. According to the method, the NiZn ferrite single crystal pellets are subjected to annealing treatment by adopting a high-oxygen-pressure high-temperature annealing treatment process, the pellet processing stress can be released under the condition of inhibiting Zn element volatilization, the ferromagnetic resonance line width of the NiZn ferrite single crystal pellets can be effectively reduced, and subsequent pellet surface polishing treatment is also facilitated.

The application provides a device system and a method for preparing isotopically labeled carbon dioxide, and the preparation method comprises the following steps: vaporizing heavy oxygen water, mixing the heavy oxygen water with carbon dioxide, catalyzing through a catalytic material, carrying out oxygen exchange reaction between the heavy oxygen water and the carbon dioxide, carrying out gas-liquid separation after the reaction, and obtaining isotopically labeled carbon dioxide. The device system provided by the application has the advantages of simple structure, wide source and low price of heavy oxygen water as an oxygen isotope source, oxygen exchange, replacement of oxygen-16 of conventional carbon dioxide by oxygen-18 of the heavy oxygen water, oxygen-18 isotopically labeled carbon dioxide products, simple process, green and pollution-free, high oxygen isotope utilization rate, mild separation and purification conditions, good economic benefits and application prospect.

The invention relates to the technical field of solid oxide electrolytic cells, in particular to an A-site high-entropy perovskite oxide with oxygen octahedron distortion and a preparation method and application thereof. The chemical formula of the oxide is Nd < 0.2 > Pr < 0.2 > La < 0.2 > Ba < 0.2 > Sr < 0.2 > CoO < 3-delta >, wherein delta is the oxygen vacancy content. The oxide has lattice oxygen after being subjected to high entropy, so that oxygen ions move more easily, the oxygen evolution reaction activity is improved, meanwhile, the local environment of the oxygen ions is changed after high entropy, local oxygen octahedral distortion occurs, the oxygen ions are more active, the oxygen migration rate is further increased, the high oxygen evolution reaction activity is shown, and the oxygen evolution reaction activity is improved. Therefore, the yield of cathode carbon monoxide is improved.

The invention provides a degradable contact lens and a preparation method thereof, and belongs to the technical field of contact lenses. The preparation method comprises the following steps: firstly, dissolving collagen in an acetic acid solution to obtain a collagen solution; dissolving hyaluronic acid in water to obtain a hyaluronic acid solution; the hyaluronic acid is formed by mixing first hyaluronic acid and second hyaluronic acid, the molecular weight of the first hyaluronic acid is 50-300 kDa, and the molecular weight of the second hyaluronic acid is 800-1500 kDa; and finally, mixing the collagen solution and the hyaluronic acid solution, and sequentially carrying out first crosslinking, second crosslinking and post-treatment to obtain the contact lens. The contact lens prepared by the invention has high oxygen permeability, proper mechanical properties and controllable degradability.

The utility model discloses a plateau heat preservation oxygen generation vest which comprises a vest body, a heating device is arranged on the outer side of the back of the vest body, the heating device is respectively connected with an inlet end and an outlet end of a circulating water pipe, and the circulating water pipe extends between an inner interlayer and an outer interlayer of the vest body and spirally ascends in the interlayers. An oxygen generating device is arranged on one side of the heating device in parallel, the oxygen generating device is connected with an oxygen guide pipe, the oxygen guide pipe extends into the interlayer and surrounds the circulating water pipe, the outlet end of the oxygen guide pipe extends out of the neckline of the vest body, and the extending end of the oxygen guide pipe is connected with a breathing mask. The oxygen generating device has the advantages that oxygen is generated on the basis of chemical reaction, the oxygen generating device is high in oxygen generating efficiency, simple in structure, convenient to use and applicable to special environments, circulating water can be heated by the aid of the heating device, so that a certain heat insulation effect is achieved for users, and oxygen is heated to be conveniently absorbed by the users.

The application discloses a kind of high oxygen storage cerium zirconium solid solution materials and preparation method, belong to rare earth catalytic material technical field, the method includes the following steps: precursor preparation, ultrasonic dispersion, double gradient precipitation, ultrasonic aging, solid-liquid separation, three-stage calcination and cooling with furnace.The application avoids coarse grain and uneven particle size distribution through the synergistic effect of double gradient precipitation and ultrasonic aging, so that the material is not easy to occur grain abnormal growth and structure collapse in long-term high temperature service.At the same time, the gradient calcination process controls the crystal densification and lattice reconstruction by steps, reduces the separation of fluorite phase and pyrochlore phase which is easy to occur in traditional low temperature single-stage calcination, maintains the stable crystal phase structure, ensures that the material can still retain sufficient active surface and pore structure under high temperature, thermal shock alternating working condition, significantly improves the oxygen storage capacity and long-term durability of catalyst carrier.

The application discloses an air inlet and outlet valve for an oxygen generator, which comprises a fixed valve plate and a movable valve plate, the end face of the fixed valve plate facing the movable valve plate is a fixed end face, the end face of the movable valve plate facing the fixed valve plate is a movable end face, the fixed end face and the movable end face are in contact and sealed, the movable end face is further provided with oxygen conveying grooves which are always in communication with oxygen guide grooves, the oxygen conveying grooves are sequentially communicated with oxygen guide holes when the movable valve plate moves, the oxygen conveying grooves are provided with two, one of the oxygen conveying grooves is simultaneously communicated with an air guide groove and a molecular tower when the movable valve plate moves, the molecular tower realizes air inlet and oxygen outlet, the other oxygen conveying groove is simultaneously communicated with a nitrogen outlet groove and another molecular tower, the other molecular tower realizes nitrogen outlet and oxygen back flushing, and the air inlet and outlet valve for the oxygen generator has the advantages of simple structure, good sealing effect, complete nitrogen analysis, high oxygen production capacity and efficiency and long service life.

The embodiment of the invention provides a monitoring cabin which comprises a containing cabin and an oxygen supply system, and the oxygen supply system comprises a first oxygen conveying assembly and a second oxygen conveying assembly; the first oxygen conveying assembly comprises a first switch valve and a first oxygen conveying pipeline, and when the first switch valve is opened, an external oxygen source can convey oxygen into the monitoring cabin through the first oxygen conveying assembly; the second oxygen conveying assembly comprises a second switch valve and a second oxygen conveying pipeline, and when the second switch valve is opened, the external oxygen source can convey oxygen into the monitoring cabin through the second oxygen conveying assembly; the oxygen flow rate of the first oxygen conveying pipeline when the first switch valve is opened is larger than the oxygen flow rate of the second oxygen conveying pipeline when the second switch valve is opened, and the oxygen flow rate is the flow rate of oxygen input into the containing cabin. The oxygen supply system can supply oxygen into the monitoring cabin at different oxygen flow rates based on the first oxygen supply pipeline and the second oxygen supply pipeline, the flow capacity is high, oxygen can be supplied into the monitoring cabin at a high oxygen flow rate, and the oxygen concentration in the monitoring cabin can be rapidly increased within a short time.

The present application relates to the field of detergent, and discloses a high-oxygen-containing detergent composition with stable viscosity and a preparation method thereof, the detergent composition comprises the following components by mass percentage: 3.5-8.0% hydrogen peroxide, 1-10% anionic surfactant, 5-14% nonionic surfactant, 0.5-3% thickening agent, 0.002-0.02% hydrogen peroxide stabilizer, neutralizer, and water in remainder; the pH of the detergent composition is 4-7. The detergent composition has high effective oxygen content and long-term viscosity stability, the surfactant and hydrogen peroxide can jointly act on stains to quickly remove stains and restore the whiteness of clothes. Moreover, the preparation method has the characteristics of simple process and being conducive to long-term viscosity stability.

The utility model relates to the field of electric appliances, and particularly discloses refrigeration equipment. The refrigeration equipment comprises a box body, a first chamber, a second chamber and an oxygen adjusting device, wherein the first chamber and the second chamber are positioned in the box body; the oxygen adjusting device is positioned between the first chamber and the second chamber; the oxygen adjusting device comprises an oxygen adjusting cavity formed in the oxygen adjusting device and an electrolysis module located in the oxygen adjusting cavity, the first chamber and the second chamber communicate with the oxygen adjusting cavity, and the electrolysis module is used for transferring oxygen in the oxygen adjusting cavity to the outside of the oxygen adjusting cavity so as to reduce the air pressure in the oxygen adjusting cavity. According to the oxygen adjusting device, a fan does not need to be arranged in the oxygen adjusting device, under the action of the electrolysis module, the oxygen content and the air pressure in the oxygen adjusting cavity can be reduced together, and therefore air with the high oxygen content in the first chamber and the second chamber can be diffused into the oxygen adjusting cavity with the low oxygen content. The oxygen content in the first chamber and the second chamber can be reduced, air does not violently move in the first chamber and the second chamber, and freshness retaining of food materials is facilitated.

The oxygen supply intervention system comprises a rack, an oxygen bottle, an airflow control valve, a corrugated pipe, an oxygen mask, a first square pipe, a limiting plate, a limiting hole, a second square pipe and a sliding assembly, a mounting table is arranged at the top of the second square pipe, a rotating plate is rotatably arranged on the mounting table, and a sliding plate is horizontally and slidably arranged on the rotating plate; an alarm assembly is arranged on the sliding plate, an opening is formed in the sliding plate, a first pipe clamp is arranged in the opening, a mounting rod is horizontally arranged on one side of the rotating plate, and a guide pipe is arranged at the end, away from the rotating plate, of the mounting rod. The corrugated pipe is limited through the limiting hole, the first pipe clamp and the guide pipe, so that the corrugated pipe droops from the upper portion of the front side of the user to be connected with the oxygen mask, the situation that when the corrugated pipe is accidentally pulled by interfering with movement actions of the user, the first pipe clamp and the sliding plate move is avoided, and when the alarm assembly detects that the sliding distance of the sliding plate is large, the alarm assembly reminds the user.

This invention relates to a barrier paper comprising a paper base material and a carboxymethyl cellulose coating layer formed on a surface of the paper base material, wherein the paper base material is a cellulosic paper and the carboxymethyl cellulose coating layer comprises 80-100% by weight of carboxymethyl cellulose, based on dry weight.

A refrigeration apparatus, comprising a container and an oxygen control module, wherein the oxygen control module is in communication with the container for adjusting the oxygen content in the container. The oxygen concentration inside the container of the refrigeration apparatus provided in the present application can be controlled by the oxygen control module, so as to create a low-oxygen or high-oxygen environment, thereby meeting the freshness preservation storage requirements of different food materials.

The application discloses a method for efficiently oxidizing benzaldehyde by using the high oxygen dissolving capacity of fluorocarbon compounds. The method uses the high oxygen dissolving capacity of fluorocarbon compounds, so that the oxygen dissolved in the fluorocarbon compounds and the benzaldehyde dissolved in the alkane can efficiently perform the oxidation reaction under normal temperature, normal pressure and low-speed stirring. Meanwhile, the fluorocarbon compounds can be separated by standing due to the chemical reaction inertness of the fluorocarbon compounds and the difference characteristics of the physical and chemical properties of the fluorocarbon compounds and the hydrocarbon compounds, so that the recycling of the fluorocarbon compounds is realized. The oxygen dissolved in the fluorocarbon compounds is used as a weak oxidizing agent, and the oxidation reaction occurs in the liquid phase, so that the effect of no residue of the oxidizing agent is realized. Compared with no addition of the fluorocarbon compounds, the conversion rate of the benzaldehyde is increased by 4 times, and the efficient oxidation of the benzaldehyde is realized.

The application discloses a preparation method of high-purity calcium fluoride. The application provides a synthesis method of calcium fluoride, which comprises the following steps: Ca(LIGAND)2 is reacted with a fluorination reagent to generate calcium fluoride in an organic solvent; wherein LIGAND is a beta-diketone ligand. The synthesis method provided by the application avoids the problems of severe reaction conditions and easy corrosion and impurity introduction in a traditional dry method, and the problems of high oxygen content and filtration difficulty caused by a wet method containing a water system, and high-purity, anhydrous, low-oxygen, high-crystallinity calcium fluoride can be obtained.

The application provides an animal model of high-oxygen-induced retinal neovascular disease and a preparation method thereof. The method comprises the following steps: placing a mouse born for 3-7 days in an environment with an oxygen concentration of 75-85%, and maintaining for 10-30 days. The method can successfully induce a long-acting retinal neovascular disease model, has a high modeling rate, fewer complications, more persistent retinal neovascular lesions, and a model duration of 55 days. The animal model provides a more optimal model for exploring long-acting anti-retinal neovascular related drugs.

The invention relates generally to an insert intended to be embedded in a silicone hydrogel contact lens. The insert is made of crosslinked materials that are rigid in the dry state at room temperature (approximately 22°C to approximately 26°C), have high oxygen permeability and a high refractive index in the fully hydrated state, and can be softened at temperatures above 32°C. Such materials are useful in the manufacture of embedded contact lens inserts for correcting corneal astigmatism, presbyopia, and color blindness, and for imparting photochromic characteristics to the lenses. The invention also relates to a method for manufacturing embedded silicone hydrogel contact lenses comprising an insert of the invention, and embedded silicone hydrogel contact lenses comprising an insert of the invention.

The invention relates to the technical field of building environments, in particular to a low-energy-consumption non-contact targeted oxygen supply system which comprises an oxygen supply device body, a static pressure box, an oxygen supply hose, a fan, a personalized oxygen supply terminal and an oxygen detection device used for sampling oxygen concentration in a sampling area. The personalized oxygen supply terminal comprises a plurality of air outlet pipes, and the air outlet pipes have adjustable oxygen supply parameters; the system further comprises a joint optimization module which is used for carrying out iterative optimization on the oxygen supply concentration and the oxygen supply parameters according to a Kriging-multi-island genetic algorithm to obtain an optimal oxygen supply parameter combination so as to realize optimal oxygen supply. According to the method, through combined optimization of side type multi-angle jet flow, local encryption grid CFD analysis and the Kriging-multi-island genetic algorithm, the problems that in the prior art, oxygen conveying energy consumption is large, the oxygen supply effect is poor, and testing means are lacked are solved, accurate oxygen supply only for the breathing area is achieved, energy consumption is remarkably reduced, and comfort and safety are improved.

The invention discloses a flow control device for improving the oxygen concentration of a PSA oxygen generator under the low flow condition. The flow control device comprises a compressor, a diverter valve, an oxygen tank and a standby molecular sieve tank and a usable molecular sieve tank, an oxygen inlet, a first outlet and a second outlet are formed in a valve body of the flow dividing valve, a valve assembly is arranged on the valve body, and the valve assembly can adjust the gas path sectional area of a first gas path and the gas path sectional area of a second gas path. An outlet of the compressor is connected with an inlet of the molecular sieve tank, an outlet of the molecular sieve tank is connected with an inlet of the oxygen tank, an outlet of the oxygen tank is connected with an inlet of the diverter valve, and the first outlet is connected with the downstream assembly. By arranging the flow divider valve, the flow of oxygen discharged from the molecular sieve tank is not limited, flow division operation is carried out, redundant oxygen is discharged or recycled, gas output is not limited, the oxygen generator is made to run within the working flow range with the highest oxygen concentration all the time, the nitrogen breakdown effect is avoided, and the service life of the oxygen generator is prolonged. And it is ensured that the oxygen concentration can meet the use requirement under the low-flow condition.

The invention belongs to the technical field of biological medicine, and particularly relates to application of a CCL20 / CCR6 axis in bronchial pulmonary dysplasia. According to the application of the targeted CCL20 / CCR6 shaft in the aspect of preparing the medicine for treating bronchial pulmonary dysplasia, it is proved that CCL20 can cause damage to the normal pulmonary development process of newborn mice; and the neutralizing antibody of CCL20 or the antagonist of CCR6 can effectively improve the pulmonary alveoli development retardation of the BPD mouse induced by high oxygen exposure. The invention provides a new thought for preparing the medicine for treating the BPD, and a method for better treating the BPD is realized by applying the targeted CCL20 / CCR6 to the development process of the medicine related to the BPD; meanwhile, the selection field of medicines for treating BPD is widened, and contributions are made to the development of the technical field.

The invention relates to a high-oxygen environment stomach tube device for anastomotic stoma healing after an esophageal cancer operation and a dynamic control method, and belongs to the technical field of medical device.The high-oxygen environment stomach tube device comprises a main catheter, positioning bags, a filling tube, an oxygen filling tube, an esophagus suction tube and a blood oxygen saturation monitoring sensor, and the positioning bags are divided into an esophagus positioning bag and a stomach positioning bag; the dynamic control method comprises the steps of preoperative evaluation, equipment preparation, intraoperative precise tube implantation and positioning, postoperative high-oxygen environment dynamic regulation and control, esophagus and stomach secretion management, nutrition support, healing index evaluation and tube withdrawal. By integrating the high-oxygen environment, negative pressure suction and nutrition / drug delivery functions, comprehensive support is provided for healing of an anastomotic stoma after an esophageal cancer operation, and by monitoring the blood oxygen saturation degree in real time and dynamically adjusting the oxygen flow and concentration, the continuous high-oxygen environment is provided for an anastomotic stoma area, the oxygenation state of local tissue is enhanced, and the occurrence rate of complications is greatly reduced.

This invention discloses an operation method for a high-oxygen-utilization-rate aerobic MBBR system, belonging to the field of water treatment technology. The operating system includes a reaction tank, within which, along the water flow direction, are sequentially arranged a first corridor, a first reaction tank, a second corridor, a second reaction tank, a third corridor, a third reaction tank, and a defoaming tank. Nano-aerators are installed on the bottom surface of the first, second, and third corridors, each connected to a nano-gas generator. Suspended carriers and agitators are installed in the first, second, and third reaction tanks. A perforated pipe aerator is installed at the bottom of the defoaming tank. Wastewater to be treated enters through the first corridor. The aeration rate of the first corridor is greater than that of the second corridor, and the aeration rate of the second corridor is greater than that of the third corridor. This invention achieves higher nano-bubble oxygen utilization, further reduces energy consumption, and exhibits high removal rates and stable treatment of oxygen-consuming pollutants.

The invention relates to the technical field of machine vision and intelligent safety monitoring, in particular to a high oxygen partial pressure environment personnel state monitoring system based on machine vision. A data acquisition module, a feature processing module and a reliability analysis module; the system determines a stimulated stochastic resonance enhancement coefficient by acquiring environment pressure, oxygen partial pressure and image features; the core of the method is that according to the coefficient and the time sequence parameter, the interruption decoupling probability of the environmental noise and the personnel semantic primitive is calculated, so that the effective recognition intensity is determined, and the personnel consciousness state is evaluated; a stimulated stochastic resonance mechanism is utilized, resonance is induced by actively injecting auxiliary noise, the detection rate of weak signals is improved, weak sign loss caused by traditional filtering is avoided, and the detection limit in an extreme signal-to-noise ratio environment is remarkably improved.

1. The name of the design product: intermittent high-low oxygen training instrument. 2. The use of the design product: by simulating high-low oxygen environment, alternating low oxygen and high oxygen gas, thereby improving the user's aerobic endurance and cardiopulmonary function, promoting their metabolism and accelerating fat burning. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective drawing.

To provide a multilayer film that allows for the heat sealing of containers that have high oxygen permeability and are resistant to tearing from impacts such as dropping when containing liquid. [Solution] The device comprises a heat-seal layer containing polyolefin, a core layer containing styrene-based elastomer, and an outer layer containing 4-methyl-1-pentene copolymer, with an oxygen permeability of 3.0 L / (m³) at 23°C. 2 ·day · atm) or more 100.0L / (m 2 A multilayer film that is less than or equal to (day·atm).

The present invention belongs to the field of packaging materials, and relates to a high oxygen barrier type multilayer container, and a related preform thereof and a preparation method therefor. In particular, the present invention relates to a multilayer container and a preparation method therefor. The multilayer container comprises: an outer layer defining an outer surface and an inner layer defining an inner surface and an inner space, wherein optionally, a middle layer is further sandwiched between the outer layer and the inner layer. The outer layer, the middle layer and / or the inner layer comprise an oxygen-barrier molding material; the oxygen-barrier molding material is a combination of a 2,5-furandicarboxylate polyester material and an oxygen-absorbing material; the other corresponding layer materials comprise polyethylene terephthalate (PET); and the weight percentage of the oxygen-barrier molding material in the container is not higher than 5 wt%.

This invention belongs to the field of fermentation tank technology, specifically a high-oxygen-rate aerobic fermentation tank. It includes a tank body with an inlet and an outlet. An oxygenation mechanism is installed on the tank body, comprising an oxygenation component and a stirring motor for driving the oxygenation component to rotate. A rotating shaft is connected to the stirring motor. The oxygenation component is located inside the tank body, and the stirring motor is mounted on the upper part of the tank body via a motor frame. The oxygenation component includes a connecting seat, which is fixedly connected to the rotating shaft. A movable frame is horizontally slidably connected to the connecting seat, and stirring frames are connected to both ends of the movable frame. A drive mechanism is installed on the rotating shaft to drive the movable frame to reciprocate. In this invention, the oxygenation component rotates while simultaneously reciprocating radially through the drive mechanism, forming a complex stirring trajectory. Combined with the active breaking of bubbles by a crushing rod, dynamic stirring and bubble breaking are achieved, significantly increasing the dissolved oxygen rate compared to traditional equipment.