31 results about "Oxygen level" patented technology

This invention discloses a method for assessing the oxidation state of specialty berry wines based on dissolved oxygen and oxidation-reduction potential (ORP). Using berry wines aged for 8 months with dissolved oxygen levels less than 0.2 mg / L and ORP less than -50 mV as a benchmark, wine samples with different initial dissolved oxygen gradients were prepared and accelerated to 4 weeks at 40°C. Dissolved oxygen, ORP, anthocyanin retention rate, total phenolic retention rate, ΔE, and sensory scores were simultaneously measured. A dissolved oxygen-ORP linear regression model was established, and piecewise linear regression was used to identify two key inflection points. Based on this, the oxidation state was classified into five levels: safe reducing state, transitional state, slightly oxidized state, moderately oxidized state, and heavily oxidized state. Quality index ranges and production recommendations for each level were provided. After 12 months of bottle storage validation, the model's prediction accuracy reached 92.5%. This invention can rapidly assess the oxidation state of specialty berry wines and guide precise oxygen control.

This invention discloses a method for dynamic monitoring of dissolved oxygen and identification of oxidation risks throughout the entire fermentation process of specialty berry wines. For seven berry species—blueberry, raspberry, mulberry, blackberry, black chokeberry, red dragon fruit, and blackcurrant—dissolved oxygen data is systematically collected at 13 key stages, including crushing, fermentation, filtration, fining, aging, cold treatment, and bottling, to create a "dissolved oxygen dynamic spectrum" for each variety. By analyzing the peak dissolved oxygen levels and their rates of change, crushing, fining, cold treatment, and bottling are identified as four high-risk oxidation stages. Furthermore, based on the rate of dissolved oxygen decrease after crushing, the seven berry species are categorized into three types: oxidation buffering, oxidation consuming, and rapid oxygen consuming. This invention achieves a multi-variety, full-chain systematic assessment of oxidation risks, providing a quantitative basis for precise oxidation control in specialty berry wines.

A breathing system that supplies air containing reduced oxygen levels includes a mask, a housing, a valve or other air flow restrictor, and one or more sensors that detect the amount of oxygen present in the system. A user breathes into the mask, after which the air is moved into the housing, and subsequently through an expandable reservoir after which the air can be re-breathed by the user. One or more sensors may be mounted to the user as well as contained within the housing. In the event that the amount of oxygen in the system's recirculated air falls below a predetermined level, the valve may be opened to allow ambient air containing higher levels of oxygen to enter the system. The system may contain a carbon dioxide scrub medium, as well as other filters to maintain desired characteristic of the air within the system.

The present disclosure relates to a method and a system to increase the dissolved oxygen content in a water body having a dissolved oxygen content of between 0 mg / l and 4 mg / l, or to anticipate a future drop of a dissolved oxygen content of a water body to between 0 mg / l and 4 mg / l, wherein the water body is non-stratified, or is stratified and comprises at least an epilimnion, wherein the method comprises a step a, wherein a stream of diluted aqueous nitrate containing liquid droplets of which at least part are diluted oxygenated aqueous nitrate containing liquid droplets are formed, and a subsequent step b, wherein the diluted aqueous nitrate containing liquid droplets of which at least part are oxygenated diluted aqueous nitrate containing liquid droplets are further spread, in case of a non-stratified water body, in a part of the water body or in the whole water body, and in case of a stratified water body, in a part of the epilimnion of the water body or in the whole epilimnion of the water body.

This utility model discloses a ventilation device for chicken houses that combines uniform air supply and oxygenation with temperature regulation. Applied within a chicken house, it includes an air heat exchanger, distribution pipes, air outlets, and a swing mechanism. The air heat exchanger is installed on one side of the chicken house. The distribution pipes are installed inside the chicken house via an air delivery mechanism that delivers fresh air to the vicinity of the livestock and poultry. The air outlets are located at the top of the chicken house and are equipped with an exhaust mechanism to expel hot air from the chicken house. The swing mechanism is installed on multiple distribution pipes to drive them to swing synchronously. This ventilation device for chicken houses combines uniform air supply and oxygenation with temperature regulation, enabling the even delivery of fresh air to the vicinity of the livestock and poultry while expelling hot air from the chicken house. It ensures adequate oxygen levels within the chicken house and achieves temperature regulation.

This invention discloses a two-dimensional hydrogen germanene nanosheet, its preparation method, and its applications. The two-dimensional hydrogen germanene nanosheet has an ultrathin layered structure, with covalently modified hydrogen atoms on its surface, a lateral dimension of 100–300 nm, and a thickness of 5–10 nm. When activated by a specific wavelength laser, the two-dimensional hydrogen germanene nanosheet can photoexcite and generate singlet oxygen to destroy bacterial biofilms and kill bacteria. Simultaneously, it consumes local oxygen to create a staged hypoxic microenvironment, thereby inhibiting excessive inflammatory responses. After the light exposure ends, as the local oxygen level naturally recovers, it can further enhance the infection clearance function of immune cells, achieving continuous clearance of residual infection. This invention, through staged dynamic regulation of oxygen partial pressure, synergistically integrates direct bactericidal and immune clearance processes, ensuring antibacterial strength while reducing the risk of tissue damage and infection recurrence. It is suitable for the safe and effective treatment of implant-related biofilm infections.

This utility model relates to a solar-powered aeration device, comprising a base, a water pump, a support frame, a solar panel, an inlet pipe, and an aeration assembly. The water pump is installed inside the base, with its input end connected to the inlet pipe. The end of the inlet pipe away from the water pump extends to the outside of the base. The support frame is detachably mounted on the top of the base and supports the solar panel. The aeration assembly is installed on the outside of the base and connected to the output end of the water pump. When the water pump is operating, a negative pressure is created in the inlet pipe, allowing air to automatically enter and mix with the water, achieving the initial water-air mixing process. Furthermore, the aeration assembly can evenly disperse the water-air mixture into the slow-flow box, allowing the air to dissolve more fully in the water, greatly improving aeration efficiency and dissolved oxygen levels in the water.

There is provided an apparatus (120) for aquaculture, comprising at least one processor (610) and at least one memory (620) storing instructions that, when executed by the at least one processing core, cause the apparatus at least to receive, from a first sensor (110), information about an oxygen level in at least one tank (160), wherein the at least one tank is for aquaculture, receive, from at least one second sensor (112, 114), information about carbon dioxide and / or pH level in the at least one tank, determine, based on the information received from the first sensor and the at least one second sensor, how to adjust an oxygen and carbon dioxide levels in the at least one tank, control, based on said determination, aeration of the at least one tank such that at least the carbon dioxide level in the at least one tank is suitable for aquaculture and determine, after controlling said aeration, whether to perform oxygenation of the at least one tank, and in which extent, such that the oxygen and carbon dioxide levels in the at least one tank are suitable for aquaculture.

A demand-adapting and auto-regulatory ECMO system and method is disclosed that may be configured to provide complete cardiopulmonary replacement. The system and method employ a blood gas exchanger having a blood inlet, a blood outlet, a gas inlet, and a gas outlet, an oxygen sensor positioned to detect oxyhemoglobin saturation at the blood inlet, and a carbon dioxide sensor positioned to detect exhaust gas CO2 concentration at the gas outlet. A controller communicates with the oxygen sensor and the carbon dioxide sensor and controls blood flow and gas flow through the blood gas exchanger in response to a sensed oxygen level by the oxygen sensor and a sensed carbon dioxide level by the carbon dioxide sensor, in turn maintaining the sensed oxygen level and the sensed carbon dioxide level within a pre-designated range of values to maintain a patient's metabolic requirements.

The sensors are configured to capture measurement data representing dissolved oxygen (DO) measurements of the environment and capacitance measurements of a medium in the environment. A memory includes computer-executable instructions. One or more processors are communicatively coupled to the one or more sensors and configured to execute the computer-executable instructions to perform operations including: using first measurement data captured by the one or more sensors to generate a model based on a relationship between a first set of DO measurements and a first set of capacitance measurements; receiving second measurement data from the one or more sensors; using the model to predict expected DO measurements based on new capacitance measurements; determining whether to use the expected DO measurements or the new DO measurements; and controlling a valve to flow a determined amount of oxygen input into the environment based on the expected DO measurements.

This utility model discloses a silicon package, including a package body shaped like an inverted frustum, with an open top and an inner diameter at the top larger than that at the bottom; and a core shaped like a frustum, cast and fixed to the center of the inner bottom of the package body. Inside the core, from bottom to top, there is a cylindrical air cylinder and two spiral tubes. The bottom of the cylindrical air cylinder is connected to an air inlet pipe that passes through the package body. Several first air pipes are arranged between the cylindrical air cylinder and the lower spiral tubes, with their ends connected to the top of the cylindrical air cylinder and the lower spiral tube, respectively. Several second air pipes are arranged between the two spiral tubes, with their ends connected to the two spiral tubes, respectively. Several third air pipes are connected to the upper spiral tube, passing through the top of the core and communicating with the interior of the package body. Advantages: Utilizing multiple capillary-like third air pipes increases air distribution and ensures uniform arrangement, increasing oxygen levels while avoiding excessively rapid reactions, allowing the silicon water to react fully and effectively.

A breathing system that supplies air containing reduced oxygen levels includes a mask, a housing, a valve or other air flow restrictor, and one or more sensors that detect the amount of oxygen present in the system. A user breathes into the mask, after which the air is moved into the housing, and subsequently through an expandable reservoir after which the air can be re-breathed by the user. One or more sensors may be mounted to the user as well as contained within the housing. In the event that the amount of oxygen in the system's recirculated air falls below a predetermined level, the valve may be opened to allow ambient air containing higher levels of oxygen to enter the system. The system may contain a carbon dioxide scrub medium, as well as other filters to maintain desired characteristic of the air within the system.

This patent is about fighting house / apartment / condo / building fires by using dry ice and / or carbon dioxide gas. By the time people call the authorities, the fire has grown so big that it is difficult to control or to extinguish by ordinary fire fighting techniques. Traditional house fire fighting is to spray water into the house so that the flames would disappear and stop burning. This patent involves two methods: 1) throwing, spraying or spreading powder or flakes or pellets of dry ice on or near the fire or around the fire so that the carbon dioxide sublimating from it diffuses and expands to get to the fire or to fill up the house or around the house so that oxygen cannot get into the fire to continue burning; 2) spraying carbon dioxide gas into the house, apartment or building to bring down the oxygen level to stop the fire.

The present disclosure relates to a method to increase the dissolved oxygen content in a water body having a dissolved oxygen content of between 0 mg / l and 4 mg / l, or to anticipate a future drop of a dissolved oxygen content of a water body to between 0 mg / l and 4 mg / l, wherein the water body is non-stratified, or is stratified and comprises at least an epilimnion, wherein the method comprise dispersing a diluted oxygenated aqueous nitrate containing liquid in the form of droplets in the non-stratified water body or in the epilimnion of the stratified water body. The present disclosure further relates to a system configured for performing the method of the present disclosure.

This invention relates to a process through which intravenous fluids, blood, or artificial blood containing high-levels of mechanically-injected dissolved oxygen can be used to maintain appropriate oxygen levels in the venous blood and thereby provide short-term oxygenation support for compromised or trauma patients. In one aspect, there is provided a system and process for oxygenating a biological fluid for use in a compromised or a trauma subject in need of oxygenation support to maintain appropriate oxygen levels in the subject, the process comprising: supplying oxygen gas from an oxygen source; and dissolving an amount of the supplied oxygen into a biological fluid to obtain an oxygen enriched biological fluid.

The present disclosure relates to Oxygen Reduction Disposable kits (ORDKit), devices and methods for the improved preservation of whole blood and blood components. The improved devices and methods for the collection of blood and blood components provide for whole blood and blood components having reduced levels of oxygen. The devices and methods provide for the rapid preparation of deoxygenated blood and blood components for storage that improves the overall quality of the transfused blood and improves health outcomes in patients.

This utility model relates to the field of treadmill technology and discloses an intelligent treadmill with status monitoring function. It includes a base frame, with two support rollers rotatably connected to the upper side of the base frame. A variable-speed motor for driving the support rollers is fixedly installed on the back of the base frame. Running belts are provided on the surfaces of the two support rollers. A support frame is welded to the top of the base frame, and a control panel is provided on the top of the support frame. During training, the user wears a monitoring wristband on their wrist. The device monitors the user's body temperature, heart rate, and blood oxygen concentration. When the blood oxygen concentration drops, a solenoid valve opens, allowing oxygen from the oxygen tank to be ejected from the oxygen outlet through the extension tube, increasing the oxygen concentration at the user's face. This promotes increased blood oxygen levels, allowing for safer extension of training time and providing safety protection for users pushing their physical limits.

This utility model relates to the field of live fish transportation technology, and in particular to a water quality control device for the live transportation of red-eyed trout. The device includes a transport box and a lid covering the top of the transport box. An oxygenation component and a water treatment component are respectively installed on both sides of the bottom of the transport box. A dosing component is installed on the water treatment component. A monitoring component is installed on the side wall of the transport box. A fish outlet with a cover is provided at the rear of the transport box. The water treatment component includes a water pump installed on one side of the bottom of the transport box, with the water inlet connected to the bottom of the transport box via a pumping pipe. This water quality control device for the live transportation of red-eyed trout can ensure water cleanliness and dissolved oxygen levels, improve fish survival rates, and add slow-release agents such as fish-safe agents during the water circulation process to alleviate stress caused by transportation. It can also reduce wave activity in the internal water during transportation, further improving fish survival rates.

This invention provides a natural oxygen energy generator and an oxygen production method. A grow light is activated when the natural light intensity is below a preset value. A placement box is slidably mounted on a mounting frame, housing potted plants, and has multiple light-transmitting holes on its perimeter walls. The top of the placement box has a detachable transparent cover. A lifting mechanism adjusts the height of the placement box on the mounting frame, and a light sensor detects the position of natural light, allowing the lifting mechanism to adjust the height of the placement box accordingly. The grow light, lifting mechanism, and light sensor ensure optimal light exposure for the potted plants throughout the day, guaranteeing photosynthetic efficiency, improving oxygen production efficiency, and ultimately increasing indoor oxygen levels.

This invention discloses a method and application for the acclimation of a methane-nutritional biofilm for the efficient degradation of 3A5MI, belonging to the field of biotechnology for water pollution control. Using methane as the microbial substrate and employing a high-pressure gas source-hollow fiber membrane module gas supply method, this invention conducts targeted enrichment and gradient acclimation of activated sludge microbial communities in a continuous flow reaction system. Using 3A5MI as the environmental selective pressure, by controlling the influent load, dissolved oxygen level, and operating conditions, a methane-nutritional biofilm capable of efficiently converting and removing 3A5MI through a co-metabolic pathway is constructed. The biofilm prepared by this invention can be used for the continuous treatment of low-concentration 3A5MI wastewater, as well as the sequencing batch process treatment of high-concentration 3A5MI and SMX wastewater. It has advantages such as high degradation efficiency, stable operation, strong adaptability, and low accumulation of stubborn intermediate products, providing a new technical route for the biological treatment of stubborn heterocyclic pollutants in organic wastewater.

The present application relates to the technical field of medical rehabilitation and physical therapy, and particularly relates to a highland closed-loop controlled cervical and lumbar deep tissue precise thermotherapy and temperature monitoring system, comprising the following modules: a physiological signal acquisition module, which is used for acquiring the surface temperature, deep tissue temperature, microcirculation blood flow and muscle group electrophysiological signal of the cervical and lumbar region, and synchronously calibrating each signal to form multi-parameter physiological state data; a highland physiological compensation model construction module, which is used for performing highland environment physiological compensation on the tissue heat transfer coefficient and heat dissipation rate according to the blood oxygen level and blood flow velocity in the physiological state data, and obtaining the tissue heat transfer parameters which are corrected by the highland characteristics. In the present application, the multi-parameter physiological signals are acquired and the highland physiological compensation is performed, the deep temperature is controlled by combining the closed-loop thermotherapy and safety monitoring, and then the individualized dynamic adjustment precise thermotherapy is formed, so that the problem that the deep temperature is difficult to stabilize caused by the fixed power heating of the traditional cervical and lumbar thermotherapy is improved.

The disclosure pertains to thermochromic materials, coatings, to coated articles and to preparation methods. In addition, the disclosure relates to thermochromic particulate material comprising vanadium (IV) oxide. A described preparation method involves curing of the coating using two curing stages performed with different oxygen levels.

This invention relates to the field of blast furnace safety control, and provides a method for controlling the safe iron capacity of the blast furnace hearth. When blast furnace tapping is not possible, if the slag and iron accumulation in the hearth reaches or exceeds 45% of the safe iron capacity (during continuous tapping, the slag and iron accumulation in the hearth will always be less than 45% of the safe iron capacity; if tapping is temporarily impossible, and the slag and iron accumulation is less than 45% of the safe iron capacity, it may be due to a tapping gap and requires no intervention), immediately reduce the blast and oxygen levels to control the accumulated slag and iron in the hearth to within 55% of the safe iron capacity. During blast and oxygen reduction, simultaneously adjust the top pressure and pulverized coal injection rate to be 6%-10% higher than normal. The normal top pressure and pulverized coal injection rate are the top pressure and pulverized coal injection rate corresponding to the reduced blast and oxygen levels.

This invention belongs to the field of iron and steel metallurgical technology, specifically disclosing an automatic control smelting method for a low-silicon, high-manganese molten iron converter. The method includes: adjusting the lance position by adjusting the oxygen lance in stages (high-low-high); adjusting material and temperature parameters by selecting qualified molten iron with a temperature of 1220-1400℃, a silicon content ≤0.20%, a manganese content ≥0.60%, controlling the molten iron ratio at 83%, and controlling the initial molten pool temperature at 1380-1430℃ and the middle and later stages at 1620-1680℃; and controlling the oxygen supply intensity by stabilizing the initial oxygen level below 8% and maintaining the converter oxygen supply intensity stably at 3.2m. 3 / t·h; In the medium term, starting from an oxygen supply of 15%, the oxygen supply intensity will be increased from 3.2m 3 / t·h decreased to 3.08m 3 The oxygen supply intensity is maintained at 3.2 m / t·h until the final carbon extraction stage; later, when the oxygen step reaches 25%, the oxygen supply intensity is increased back to 3.2 m / t·h. 3 / t·h.

An oxygen level monitoring method is a method for monitoring an oxygen level in a welding atmosphere during welding of a workpiece. The oxygen level monitoring method includes: a step of measuring a color of welding light produced during welding of the workpiece; and a step of determining whether the oxygen level in the welding atmosphere is less than or equal to a predetermined level in accordance with the measured color of the welding light.

Apparatuses and methods are described for improving blood flow and oxygen levels within an ear of a person for treatment of tinnitus, sudden sensorineural hearing loss, vertigo, temporomandibular joint disorder, or middle ear effusion using a head-worn appliance containing magnetic material that generates a magnetic field. The methods include placing the appliance on the person's head so that the magnetic material is in close proximity to a user's ear. The wearable appliance may be a configured as a headband, a headset, or in-ear inserts. If treating both of the person's ears, the wearable appliance should include two sets of magnets disposed on opposite sides of the person's head and in close proximity to the person's inner ears. The wearable appliance is oriented so that the north pole of the magnets faces the person's inner ear, and the south pole of the magnets faces away from the person's inner ear.

According to an example aspect of the present disclosure, there is provided an apparatus (120) for aquaculture, comprising at least one processor and at least one memory storing instructions that, when executed by the at least one processing core, cause the apparatus (120) at least to receive, from a first sensor (110), information about an oxygen level in at least one tank (160), wherein the at least one tank (160) is for aquaculture, receive, from at least one second sensor (112, 114), information about carbon dioxide and / or pH level in the at least one tank (160), determine, based on the information received from the first sensor (110) and the at least one second sensor (112, 114), how to adjust an oxygen and carbon dioxide levels in the at least one tank (160), control, based on said determination, aeration of the at least one tank (160) such that at least the carbon dioxide level in the at least one tank (160) is suitable for aquaculture and determine, after controlling said aeration, whether to perform oxygenation of the at least one tank (160), and in which extent, such that the oxygen and carbon dioxide levels in the at least one tank (160) are suitable for aquaculture.

Embodiments of the invention relate to a cell culture incubator having a gas flow regulation system that exerts control over atmospheric parameters within the incubator. Particular embodiments include an enclosed environmental chamber and a control unit operably linked thereto, the control unit having an oxygen module and a pressure module. Control unit embodiments, by way of these modules, are configured to regulate both oxygen partial pressure and total gas pressure within the enclosed environmental chamber. Embodiments of the control unit are adapted (a) to provide instructions to the oxygen module to regulate an oxygen level to an instructed hypoxic oxygen level and (b) to provide instructions to the pressure module to regulate total gas pressure to an instructed positive pressure level. The regulation of oxygen to the instructed hypoxic level prevails despite an oxygen partial pressure-increasing effect of the positive pressure condition associated with the instructed positive pressure level.

During childbirth process, trauma to an infant can readily arise, ultimately resulting in fetal hypoxia, academia, and brain damage. Such unfavorable conditions can be prevented by measuring the fetus' blood-oxygen level and heart rate. Without a fetal pulse oximeters, blood oxygen level cannot be monitored non-invasively reliably, which reduces the chance for birth complications to be recognized in time. A noninvasive system to implement such goals and maximize the potential welfare of the fetus may include devices to measure oxygen saturation of hemoglobin (SpO2). Such a device may be an oxy probe that uses a trans-reflective method of SpO2 measurement where oxygen saturation data can be transmitted through wire, fiber optics, and or using a radio frequency link, fetal monitor data can be analyzed, compared to existing data base, and or transmitted via radio waves or internet.