43 results about "Oxygen Consumptions" patented technology

This invention belongs to the field of iron and steel smelting technology, specifically disclosing an automatic control smelting method for high-silicon and high-manganese molten iron converters with dual slag. The method includes: S1: preparing molten iron with the following conditions: temperature 1220-1400℃, silicon content 0.70%-0.99%, manganese content ≥0.60%, and the molten iron ratio controlled below 74%; S2: using a five-hole oxygen lance for blowing, with the lance lowered in stages during the initial blowing and ignition phases and the rapid oxidation period of silicon and manganese; S3: calculating the timing for slag removal based on the silicon content of the molten iron entering the furnace, and performing slag removal when the preset oxygen consumption is reached, discharging the highly oxidizing slag generated under high-silicon and high-manganese conditions; S4: a second lance lowering, using a phased mode for subsequent smelting; S5: throughout the blowing process, slag-forming raw materials lime, magnesium balls, and sintered ore are added in batches according to set nodes. This method achieves precise control of the slag removal timing through quantitative calculation, stabilizing the residual silicon content within the target range.

This invention discloses a device for regulating oxygen content in a photophytic aquatic body, comprising a culture tube equipped with a light source assembly, a pneumatic piston assembly at the bottom of the culture tube including a dual-function air pump for charging and suction, and a piston plate slidably disposed inside the culture tube; an air box at the top of the culture tube, equipped with a carbon dioxide introduction mechanism and an oxygen removal mechanism. The piston plate reciprocates to circulate the algal solution, facilitating the transfer of oxygen produced by microalgae photosynthesis into the air box. When the oxygen concentration in the air box exceeds a set value, the piston plate automatically accelerates its movement. This accelerated movement of the piston plate also triggers the oxygen removal mechanism to expel the oxygen produced in the air box more quickly, thus regulating the oxygen content and preventing excessive oxygen consumption and carbon dioxide production caused by excessively high oxygen-to-gas mixture concentrations in the air box.

Systems and methods are provided for comprehensive in vivo nanotoxicity testing, as well as fabrication methods of chips used for nanotoxicity testing. A three-dimensional (3D)-printed, automated microfluidic chip can be configured for in vivo nanotoxicity testing, and the chip can allow for multi-route (e.g., waterborne and / or foodborne) exposure of marine organisms to small materials (e.g., plastics such as microplastics and / or nanoplastics (NPLs), or metals), providing real-time, in situ monitoring of bioaccumulation and oxygen consumption.

The application discloses a goaf coal spontaneous combustion three-dimensional dynamic numerical simulation method during working face advancing, relates to the technical field of coal spontaneous combustion three-dimensional dynamic numerical simulation, and comprises the following steps: based on the region of the coded identification, combining the three-dimensional disturbance offset track and the ventilation reverse distribution characteristics in the structure of the boundary disturbance, generating the boundary form uncertainty description body, and determining the boundary form uncertainty grade under the condition of local collapse of the goaf boundary space structure in the advancing process according to the space offset amplitude, disturbance duration and coupling strength in the boundary form uncertainty description body. The application introduces multi-source disturbance identification, boundary form uncertainty quantification, oxygen diffusion dynamic adjustment and oxygen consumption linkage feedback mechanism, realizes the synchronous update of the oxygen diffusion parameters and the coal oxidation reaction process under the boundary mutation condition, and thus improves the accuracy and reliability of the goaf coal spontaneous combustion three-dimensional dynamic numerical simulation.

Systems and methods for determining oxygen consumption using magnetic resonance imaging (MRI) are provided. In some implementations, a method includes steps for applying a pulse sequence using an MRI system to a region of interest (ROI) in a subject, and acquiring magnetic resonance (MR) signal data from the ROI using the MRI system. The method also includes steps for reconstructing the MR signal data using a reconstruction algorithm to derive at least one motion-controlled, blood oxygenation-weighted image, and at least one blood-flow image; and analyzing the at least one motion-resolved, blood oxygenation-weighted image to determine oxygen consumption in the ROI.

This invention discloses a method and system for controlling the biochemical cycle balance in marine aquaculture, belonging to the field of control and regulation technology. The invention includes: a statistical end for continuously recording daily water temperature, aquaculture depth, number of aquaculture days, feed amount, and total pollutant content during the aquaculture process; a detection end for sampling fish to detect their oxygen consumption rate; a correlation analysis end for analyzing the numerical correlation between the fish's oxygen consumption rate and water temperature, aquaculture depth, and number of aquaculture days, and verifying this correlation using feed amount and total pollutant content; and a control end for acquiring the daily water temperature, aquaculture depth, and number of aquaculture days, and substituting these values ​​into the aforementioned numerical correlation to derive the daily oxygen consumption rate of the fish; and calculating the pumping power of the aerator based on the daily oxygen consumption rate of the fish to ensure that the nitrogen pollutant concentration in the aquaculture water meets the standards. This invention effectively maintains the biochemical balance during the aquaculture process.

This invention belongs to the field of oxygen supply technology, specifically a differential pressure pulse oxygen valve, comprising a valve body and a lower shell. The lower shell is installed at the bottom of the valve body. A C-shaped component is installed inside the valve body, with an upper countersunk hole and a lower countersunk hole respectively. A sealing plastic ball is installed in both the upper and lower countersunk holes. An oblique hole is formed within the C-shaped component and communicates with the upper countersunk hole. The oblique hole is wider at the top and narrower at the bottom. An air outlet is installed on the lower shell. Compared to traditional oxygen valves, this invention's structural design results in lower oxygen consumption, thereby increasing oxygen utilization and reducing consumption during use. For hospitals, this allows the same oxygen canister to last longer, reducing the frequency of oxygen procurement and indirectly lowering hospital costs. For mountaineers and high-altitude tourists, it allows their oxygen to last longer, which is of great significance to their safety.

The application belongs to the technical field of water quality safety intelligent monitoring, and discloses a single smell substance intelligent detection and self-checking system based on an electronic nose sensor array and multi-source information cooperation, which comprises an electronic nose sensor array module (containing a geosmin specificity sensor, a dimethyl isochroman specificity sensor and a dimethyl trisulfide specificity sensor), a multi-parameter monitoring module, a machine learning data processing module and a result output module; the multi-parameter monitoring module collects the dissolved oxygen consumption rate, pH value, conductivity and water temperature of water bodies in real time; and the machine learning data processing module establishes a dynamic correlation model of the single smell substance concentration and characteristic parameters through a machine learning algorithm. The application effectively solves the false positive misjudgment problem under the interference of a complex matrix, improves the detection accuracy to more than 95%, and has a concentration prediction error of less than or equal to 5%, thereby providing reliable technical support for the prevention and control of single smell pollution in drinking water, surface water and other water bodies.

This invention discloses an oxygen pressure leaching method and apparatus. The oxygen pressure leaching method includes at least one stage of oxygen pressure leaching process. This stage includes grinding underflow pretreatment, a first-stage oxygen pressure leaching treatment, a first-stage slurry heat exchange and depressurization, a first-stage slurry gas separation, and a first-stage slurry separation to obtain a first-stage concentrated supernatant and a first-stage concentrated underflow. Compared to existing processes, the method of this invention can effectively reduce oxygen and steam consumption. Using a single-stage oxygen pressure leaching process can reduce steam consumption by 70-100%, and using a two-stage oxygen pressure leaching process can reduce oxygen consumption by 27.5-36% and steam consumption by 58-100%.

The present application relates to the technical field of ship fire safety, and specifically discloses a ship fire situation prediction digital twin identification method, based on a radiation diffusion stop time point, obtaining oxygen concentration in each smoldering merging area, comparing oxygen consumption concentration in multiple continuous historical smoldering working conditions monitoring periods, evaluating oxygen consumption concentration types, realizing identification of smoldering oxygen consumption change types, providing data support for subsequent different prediction strategies for different types of smoldering, and according to the evaluated oxygen consumption concentration type, obtaining an attenuation prediction value, combining the oxygen concentration in the current ship engine room smoldering merging area, and predicting the smoldering attenuation duration of the ship engine room, which can provide a clear safety waiting time window for firefighters, guide firefighters to take correct response strategies within the window, and avoid misjudgment leading to flashover.

The application relates to the field of clean energy and chemical industry cogeneration technology in the coal chemical industry, in particular to a dry pulverized coal gasification coupled green hydrogen cogeneration methanol-sulfur system, which comprises a coal gasification unit, a purification unit, a methanol synthesis unit connected in sequence through pipelines, a hydrogen preparation unit for preparing green hydrogen by electrolyzing water by using renewable energy, and a sulfur recovery cogeneration sulfur unit connected with the purification unit and used for recovering regenerated sulfur-containing waste gas in the purification unit. The application constructs a closed-loop production system of 'dry pulverized coal gasification-green hydrogen coupling-sulfur hydrogen cogeneration', compared with traditional coal water slurry gasification, the dry pulverized coal gasification furnace is combined with green hydrogen coupling, oxygen consumption and coal consumption are significantly reduced, and the high-carbon emission water gas shift process is eliminated from the source; and through the set waste heat recovery device, the sensible heat of high-temperature crude synthesis gas is converted into electric energy to provide power supplement for subsequent driving equipment in the system, realizing internal circulation and cascade utilization of energy.

1. Name of the product in this design: Intelligent Oxygen Consumption Regulator. 2. Purpose of this design: This design is for health management. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The application provides a multi-parameter coordinated control pressurized cabin system and a control method, and belongs to the technical field of pressurized cabins; the system comprises: a pressurized cabin body, which comprises an equipment cabin, a transition cabin and a living cabin, and a camera with a people counting function is arranged in the transition cabin; an environment monitoring unit, which is arranged in each cabin and is used for collecting multiple environmental parameters in real time; a control execution unit, which comprises a controller and an executor driven by the controller, and the executor comprises an electric valve for adjusting air flow, a pressurizing pump and a heater; the controller constructs a multi-index comprehensive evaluation model according to the parameters collected by the environment monitoring unit, calculates oxygen consumption and carbon dioxide generation in combination with the number information counted by the camera, dynamically adjusts the operation parameters of each executor through a closed-loop control instruction, and realizes the coordinated control of the oxygen partial pressure, temperature and humidity and air quality in the cabin. The application can realize multi-parameter coordinated control, has dynamic adaptability, and can take into account energy efficiency and comfort.

The present application relates to the technical field of river regulation, and discloses a storm post-river recovery scheduling method based on digital twin reverse multi-objective optimization, wherein in the present application, river water quality indexes are classified into three categories, namely, fast oxygen consumption related indexes, slow oxygen consumption related indexes, and suspended matter related indexes, and a representative index is selected from each category of indexes, so that the output of the model is reduced to all output parameters without coupling, forming uncoupled river water quality indexes as the output of the model; then, based on the decoupled output, a time series neural network model is trained using a model training method that can decouple the input, to obtain reliable prediction of the response of the river water quality index that most needs human intervention to rainfall and recovery means, which is used as a design function for reverse optimization. A constrained Pareto frontier is used as a target function to generate a set of Pareto optimal scheduling parameters and develop a scheduling scheme; thereby realizing efficient scheduling in the post-storm river recovery process.

The present invention provides a real-time cell monitoring system capable of improving the accuracy and convenience of real-time cell analysis by simultaneously measuring various electrical signals and an oxygen consumption rate of a cell in a non-destructive manner.

This application provides a cell culture container, belonging to the technical field of cell culture equipment. The culture container includes a container tank, an air intake and exhaust controller, a gas guiding component, a detector group, a fluorescence detection module, and a computer controller. The computer controller receives the fluorescence intensity signal detected in real time by the fluorescence detection module. After filtering and temperature drift compensation, it calculates the current cell oxygen consumption rate using a preset fluorescence intensity-cell oxygen consumption rate correlation model, and controls the air intake pump according to this rate to achieve on-demand oxygen supply. The correlation model can be a linear proportional model, a piecewise linear model, or a dynamic correction model. Preferably, the fluorescence detection module uses multi-wavelength excitation, which can simultaneously detect the first fluorescence signal characterizing cell activity and the second fluorescence signal characterizing cell death, and stops air intake and alarms when the dead cell signal exceeds a threshold. This invention achieves precise gas control based on cell metabolic activity, improving the success rate of culture.

This application relates to the field of converter smelting technology, and more particularly to a converter smelting method based on hot-pressed iron blocks. The converter smelting method includes the following steps: desulfurizing and transferring the converter to obtain a tapping converter; determining the oxygen consumption based on the loading capacity of the tapping converter; determining the gradient preset oxygen blowing ratio and the blowing oxygen ratio based on the oxygen consumption and the smelting cycle of the tapping converter; adding limestone and a first hot-pressed iron block to the tapping converter as pre-feeding material to obtain pre-molten iron; under the gradient preset oxygen blowing ratio conditions, adding batch materials to the pre-molten iron in batches for slag pressing to obtain slag-containing molten iron; under the blowing oxygen ratio conditions, adding process materials to the slag-containing molten iron for blowing treatment to obtain tapped steel; the process materials include a second hot-pressed iron block; and tapping the tapped steel to complete the converter smelting process. This converter smelting method improves the stability of the converter blowing process through raw material substitution and adaptation, precise process control, process risk prevention and control, and equipment and cost synergy.

This invention discloses a method for determining the oxygen concentration in the calcination atmosphere of ternary lithium-ion battery cathode materials, belonging to the field of lithium-ion battery cathode material preparation technology. Addressing the problems of high cost, low oxygen utilization, and unreasonable matching of oxygen concentration and material layer thickness in existing ternary cathode material calcination with pure oxygen, this invention sets a minimum oxygen concentration threshold inside the calcination material layer. Based on a modified Becquerel number and Darcy number, a quantitative correlation model for inlet oxygen concentration is constructed. The minimum inlet oxygen concentration is calculated by combining this model with the actual material layer thickness. The calcination atmosphere is prepared by mixing oxygen and air, and can be controlled uniformly throughout the furnace or in segments, maintaining a constant total inlet air flow rate. This invention effectively reduces oxygen consumption and production costs, improves gas utilization, and reduces oxidation losses in high-temperature equipment while ensuring the electrochemical performance of ternary cathode materials. It is applicable to various ternary cathode materials and mainstream calcination kilns, exhibiting excellent industrial applicability and universality.

The present application relates to the technical field of industrial furnace intelligent regulation, and particularly relates to an oxygen regulation method and system for an oxygen-enriched combustion system. The method comprises the following steps: obtaining limited measurement point operation data and fuel feeding state data of an oxygen-enriched combustion furnace; performing furnace space measurement point scope matching according to the limited measurement point operation data to obtain furnace space correlation data; positioning a fuel reaction interval in combination with the fuel feeding state data to obtain fuel reaction interval data; performing oxygen consumption space backstepping according to the limited measurement point operation data, the furnace space correlation data and the fuel reaction interval data to obtain furnace oxygen consumption distribution data; identifying local oxygen deficiency risk based on the furnace oxygen consumption distribution data to obtain local oxygen deficiency risk data; and generating partitioned oxygen supply control data according to the local oxygen deficiency risk data. The present application can improve the local oxygen deficiency risk identification accuracy and the oxygen regulation pertinence under the condition of limited measurement points, and reduce excessive oxygen supply and insufficient combustion.

This invention discloses a system and method for monitoring the remaining duration of a compressed oxygen respirator. It constructs a dynamic oxygen consumption calculation model by real-time collection of physiological parameters such as firefighters' breathing rate, expiratory volume, inspiratory volume, and exhaled carbon dioxide content, combined with equipment operating parameters such as cylinder replenishment pressure changes, replenishment rate, airbag capacity, and replenishment time. This method calculates real-time oxygen consumption based on the oxygen consumption per breath and breathing rate, and calculates the remaining protection time of the compressed oxygen respirator by comparing the relationship between replenishment rate and real-time oxygen consumption, categorized by mode. Furthermore, this invention provides a monitoring system integrating physiological data collection, environmental monitoring, core processing, and early warning feedback. By integrating multi-source information, dynamically adapting to changes in firefighters' workload, and conforming to the actual workflow of the compressed oxygen respirator, this invention significantly improves the accuracy and real-time performance of remaining duration prediction, providing reliable data support for safe operations and command decisions by firefighters.

This invention relates to a method for enhancing the stirring intensity during vanadium extraction, belonging to the field of steel pretreatment. The method includes the following three steps: first, vanadium-containing molten iron is added to a converter; then, a top-and-bottom blowing process is used for smelting; coolant is added according to the composition and temperature at the smelting endpoint; finally, semi-steel is removed from the lance at the smelting endpoint. The top-blown gas is an oxygen-nitrogen mixture, and the total flow rate of the oxygen-nitrogen mixture is 31,000~35,000 Nm³. 3 / h; the oxygen consumption per ton of iron, the top blowing lance position, and the nitrogen consumption per ton of iron are controlled in segments according to the blowing period; the bottom blowing gas is nitrogen, and the nitrogen supply intensity is controlled in segments according to the blowing period. This invention significantly enhances the stirring intensity of the molten pool without significantly increasing the temperature rise rate through the synergistic effect of the high-flow-rate oxygen-nitrogen mixed gas from the top and the variable-flow-rate nitrogen from the bottom, thereby shortening the mixing time and enhancing the slag-metal reaction, further increasing the vanadium oxidation amount and further reducing the TFe content in the vanadium slag.

The application discloses a kind of childbirth process energy consumption monitoring and individualized energy demand management system, including multimodal perception layer, transmission layer, computing layer and application decision layer, multimodal perception layer includes multimodal data acquisition module and non-invasive metabolism monitoring module, and the physiological sign parameter of pregnant woman is collected using wearable sensor array in multimodal data acquisition module, and non-invasive metabolism monitoring module carries out collection to tissue oxygenation data, body fluid distribution and metabolism data and oxygen consumption and carbon dioxide production data, computing layer establishes individual basal metabolic rate model by intelligent computing module, and calculates total energy consumption of labor, and then balanced state is calculated by dynamic energy demand prediction model, and application decision layer generates individualized nutrition supplement scheme according to the data of computing layer, triggers multi-level early warning and pushes clinical decision suggestion, and the application realizes real-time accurate monitoring of childbirth process energy consumption, individualized energy demand prediction and dynamic nutrition supplement.

The present application relates to the field of semiconductor thin film coating process control, in particular to a chip ITO coating vacuum degree adjusting method, comprising: constructing a multi-source perception input layer, collecting and integrating macro vacuum degree data, target material discharge electrical parameters, plasma spectral characteristic parameters and wafer real-time temperature; constructing a micro-environment digital twin layer, calculating transient oxygen consumption rate and predicting wafer surface local real oxygen partial pressure; constructing a collaborative decision-making and execution layer, according to the deviation of local real oxygen partial pressure and target oxygen partial pressure, adopting a feedforward feedback collaborative control mechanism, adjusting the local reaction gas flow of the air inlet device and the opening degree of the chamber main exhaust valve, and performing independent mathematical solution through action decoupling; the present application realizes direct constraint on the real oxygen partial pressure of the wafer surface micro-environment, improves the photoelectric performance stability and batch consistency of the ITO thin film.

This invention proposes an apparatus and method for evaluating the thermal oxidative stability of liquid compounds based on pressure measurement, belonging to the technical field of chemical analysis experimental apparatus. The apparatus includes an oxygen supply unit, a reaction unit, a cooling unit, and a pressure measurement unit. The oxygen supply unit controls the vacuuming and oxygenation of the apparatus. The reaction unit achieves precise temperature control and homogenization of the reaction liquid through a high-temperature heating circulating bath and a magnetic stirrer. The cooling unit eliminates interference from volatile products on pressure measurement through a cryogenic trap. The pressure measurement unit collects system pressure data in real time using a high-sensitivity pressure transmitter and transmits it to a computer. The method involves evacuating the apparatus and then oxygenating it to a set pressure, heating and maintaining the reaction temperature, monitoring system pressure changes through the pressure transmitter, and recording data and calculating oxygen consumption on the computer. This invention can track the oxygen consumption rate in real time, reveal the oxidation pattern, and is suitable for rapid and accurate evaluation of the thermal oxidative stability of various liquid compounds.

The present application provides a kind of converter energy consumption and carbon emission diagnosis and optimization method based on production rhythm, belong to steel metallurgical process intelligent diagnosis technical field.Input with converter process production rhythm parameter, operating parameter and material structure parameter, oxygen consumption, converter gas recovery and steam recovery are predicted by long short-term memory network, and energy consumption and carbon emission of current converter working condition are calculated accordingly;Based on multidimensional production data, the reference working condition is obtained by clustering algorithm;The deviation index between the current working condition and the reference working condition is constructed and the working condition is diagnosed, and the influencing factors are sorted according to the contribution degree;On this basis, the converter production is optimized combined with working condition deviation and influence weight.This method uses entropy weight method, integrates energy efficiency and carbon emission index, constructs working condition evaluation system, selects the reference working condition with optimal energy efficiency and carbon emission by clustering algorithm, and realizes converter production optimization.

Techniques and apparatuses are described for determining an estimated cardiac output of a patient during a dialysis treatment. In one embodiment, for example, an apparatus can include a memory and logic coupled with the memory. The logic can be configured to determine an upper body oxygen consumption of the patient, determine, during the dialysis process, a hemoglobin concentration and a venous oxygen saturation, as measured via an optical blood monitor operably coupled to an extracorporeal circuit of a dialysis system performing the dialysis process, an arterial oxygen saturation as measured via a pulse oximeter operably coupled to the patient, an arterial-venous oxygen content difference based on the arterial oxygen saturation and the venous oxygen saturation, and an upper body blood flow (UBBF) as (the upper body oxygen consumption) / (the arterial-venous oxygen content difference), and determine a treatment recommendation based on the upper body blood flow. Other embodiments are also described.

The application relates to the technical field of lithium ion batteries, and discloses a ternary / manganese iron phosphate lithium composite positive electrode sheet with a rapid oxygen absorption function and a lithium ion battery, the electrode sheet comprising a current collector and a bottom coating and an upper coating coated in sequence; the bottom coating is mainly composed of high-content ternary materials to guarantee high specific capacity; the upper coating comprises manganese iron phosphate lithium, ternary materials and a rapid oxygen absorption composite component containing low-oxidation-state elements; when the battery is under abnormal working conditions such as high temperature or overcharging, the ternary materials are phase changed to precipitate free oxygen, the oxygen absorption component in the upper coating can rapidly capture oxygen and generate in-situ oxidation reaction to convert gaseous oxygen into stable solid substances. The application utilizes the synergistic mechanism of physical blocking and chemical oxygen consumption to cut off the oxygen source of electrolyte oxidation and decomposition, reduces the gas production and heat production in the battery cell, can delay the triggering of thermal runaway, and improves the safety performance of high-specific-capacity batteries.

The utility model relates to the technical field of plant culture, and specifically discloses a hydroponic plant oxygen supply device, which comprises a bottle body, a plurality of input through holes are formed in the lower part of the outer ring of the bottle body, a lower partition plate is fixedly connected to the middle part of the inner cavity of the bottle body, and a cover plate is arranged above the bottle body, the input through holes, the square through holes and the butt joint through holes are arranged, the hydroponic liquid flows along a predetermined path and fully contacts with an oxygen generator, the oxygen utilization efficiency and the dissolving effect are effectively improved, the problem that the concentration of dissolved oxygen in the hydroponic liquid is too high or too low due to the excessively high or low oxygen dissolving and diffusing rate is avoided, the circular ring, the inner disc, the support one, the sleeve rod and the thin rod are connected to form a linkage adjusting mechanism, the opening and closing control of the butt joint through hole is combined, the oxygen dissolving rate and the concentration of dissolved oxygen are accurately adjusted, and the oxygen supply amount is matched with the oxygen consumption demand of different plants.