18 results about "Oxygen decrease" patented technology

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.

The utility model relates to the technical field of plastic storage, in particular to a liquid plastic sealed storage device which comprises a supporting frame, a storage cylinder and a discharging port, the storage cylinder is fixedly connected into the supporting frame, a gas conveying port is formed in the top of the storage cylinder, and the discharging port is formed in the bottom of the storage cylinder. The liquid plastic is isolated from oxygen in air, oxidation reaction of the liquid plastic is reduced, stability of the liquid plastic is kept, and the effective service life of the liquid plastic is prolonged. As the nitrogen is not easy to burn, the risks of fire and explosion can be reduced, and the safety is higher; the bottom of the device is provided with a discharge port, and through protection of multiple layers of fixing blocks and a vent valve, the storage device is not prone to leakage and better in sealing performance.

The application discloses a kind of viscous damper component processing device operation method, it is related to mechanical processing field, including rack, base, feeding rollway, transfer arrangement, positioning rotating device, heating device and preheating oxygen removal device, the rear end of the transfer arrangement is equipped with feeding rollway, and its front end is equipped with discharging rollway, transfer arrangement can automatically transport down the cylinder on feeding channel, and be arranged into equidistance state for positioning rotating device positioning use;When two rotating tables are clamped, cylinder can be automatically lifted to the oblique upward direction of feeding rollway, to ensure that inductive coil can be linear motion in the case of being wrapped in cylinder;Preheating oxygen removal device can remove oxygen in cylinder by the characteristics of combustion oxygen consumption, reduce the scale that appears when heat treatment in cylinder, and by heating to heat-conducting plate, so that circulating hot air can preheat inside cylinder, avoid the influence caused by heating too fast.

The utility model discloses an improved oxygen generator working in a low-temperature environment, and relates to the technical field of oxygen generators. The device mainly comprises an installation frame, a transmission part, an air source separation part, an air exhaust part and an oxygen exhaust part are arranged on the installation frame, the transmission part comprises an air compressor and an air heater, an air inlet pipe is connected to the air heater, an exhaust pipe is connected between the air heater and the output end of the air compressor, and the air source separation part is connected with the air outlet pipe. And the air heater is adjusted in real time through a control system on the oxygen generator. According to the oxygen generator, the molecular sieve is ensured to work at the optimal temperature through real-time feedback regulation of the inlet air temperature, so that the yield of oxygen is improved, the proper inlet air temperature is beneficial to more effectively separating oxygen by the molecular sieve, reducing mixing of other gases and improving the purity of the oxygen, and the oxygen generator can adapt to different low-temperature environments through a feedback regulation mechanism; and stable operation under various low-temperature conditions can be ensured.

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.

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 invention discloses a neck-worn sleep apnea and blood oxygen monitoring necklace device and its monitoring method, belonging to the field of sleep monitoring technology. The device includes: a flexible, skin-friendly neck ring, which integrates a reflective blood oxygen sensor, a piezoelectric thin film sensor, and an accelerometer; a pendant-style main control box, which has a built-in battery, microprocessor, wireless communication module, and alarm unit. This invention also includes: (1) a method for extracting weak respiratory vibration signals from the neck, which removes cardiac pulsation interference through adaptive filtering; (2) an adaptive filtering method for turning over interference, which identifies changes in body position in real time based on an accelerometer and dynamically adjusts the judgment window; (3) a multi-parameter fusion method for judging and classifying apnea events, which automatically classifies OSA, CSA, and MSA based on snoring energy and blood oxygen decrease; (4) a graded low-power all-night monitoring method; and (5) an apnea event trend early warning method. This invention adopts a necklace-style, imperceptible wearing design, which has the advantages of high sensitivity, anti-interference, automatic classification, and long battery life, and is suitable for long-term continuous monitoring and forward-looking early warning of sleep apnea in the home.

In response to an engine temporary stop request, a quantity of oxygen stored in a catalytic converter is reduced by controlling an in-cylinder air fuel ratio to be richer than stoichiometric. The quantity of stored oxygen is calculated while the engine is operating. An amount of air fuel ratio enrichment is set based on the quantity of stored oxygen calculated when the stop request occurs, such that the amount of air fuel ratio enrichment decreases as the quantity of stored oxygen decreases. An opening of a throttle valve is reduced in response to the stop request. Engine stop is permitted when the reduction of the opening of the throttle valve causes an internal pressure of an intake passage downstream of the throttle valve to reach a predetermined negative pressure, and the air fuel ratio enrichment operation causes the quantity of stored oxygen to reach a predetermined target value.

The present invention discloses an operating method for removing oxygen from bottle caps, relating to the technical field of beverage packaging. The present invention includes methods for removing oxygen from bottle caps for hanging caps and methods for removing caps for detachable caps. Specifically, the present invention utilizes carbon dioxide gas to spray the interior of the bottle cap, creating forced convection, displacing oxygen with carbon dioxide gas, thereby reducing the total amount of oxygen introduced during the sealing process and thereby reducing the oxygen content in bottled beverages such as wine, drinking water, and beverages. The present invention can effectively reduce the oxygen content in bottled beverages such as wine, drinking water, and beverages, thereby extending the shelf life of bottled beverages such as wine, drinking water, and beverages, and has high market application value.

The application discloses a multi-rotor intelligent unmanned plane, and relates to the technical field of unmanned planes, which comprises an unmanned plane body, and side plates are fixedly connected to the two sides of the unmanned plane body. The multi-rotor intelligent unmanned plane is provided with a first safety block, a second safety block and a safety air bag. Inert gas in a gas cylinder enters a connecting head inside through a pipeline, enters an air bag cover inside through a connecting pipe, enters an air bag cover inner cavity through a gas hole, enters a first driving air bag inside through another connecting pipe, and the first driving air bag pushes a baffle to move out of a storage cavity. At this time, another connecting pipe enters the safety air bag inside, the safety air bag bounces out of the storage cavity, the safety air bag is rapidly inflated, the top and the bottom of the unmanned plane body are protected, the unmanned plane is protected when the unmanned plane falls, and thus loss can be reduced as much as possible. The battery is arranged in a chamber in the air bag cover filled with inert gas, oxygen is isolated, and loss is reduced.

A SOx concentration acquiring apparatus of an internal combustion engine of the invention acquires sensor currents as SOx concentration currents after a sensor voltage reaches an oxygen decreasing voltage in a reoxidation voltage decreasing control, acquires the sensor current as a base current when the sensor voltage is equal to or lower than the oxygen decreasing voltage in the reoxidation voltage decreasing control, acquires an integration value of differences between the base current and each of the SOx concentration currents, and acquires a SOx concentration of an exhaust gas discharged from an internal combustion engine on the basis of the integration value.

A method for retaining the freshness of cut cabbage according to the present invention includes: a step (I) for storing cut cabbage (A) and an atmosphere adjusting agent package (B), which has oxygen absorbing capacity, in a packaging material (C) to obtain a vegetable package (X); and a step (II) for holding the vegetable package (X). In step (I), the vegetable package (X) satisfies the following requirements (i) and (ii). Requirement (i) is that the ratio of the oxygen reduction rate to the oxygen exchange rate is 0.4 to 2.0. Requirement (ii) is that the ratio of the rate of carbon dioxide increase to the rate of carbon dioxide exchange is 0.2 to 2.0.

The present application relates to the technical field of oxygen-containing tail gas treatment, and discloses a method for treating oxygen-containing tail gas generated in the preparation of epichlorohydrin by hydrogen peroxide method. The method comprises the following steps: condensing and separating the oxygen-containing tail gas generated in the preparation of epichlorohydrin by hydrogen peroxide method, diluting the gaseous phase obtained after condensation and separation with explosion suppression gas, washing the obtained mixed gaseous phase, and then performing deoxidation treatment on the washed mixed gaseous phase in the presence of a catalyst and a reducing gas; wherein the catalyst contains a carrier, an active component supported on the carrier, and an additive, the active component is at least one of oxides of Pd, Pt, Ru and Rh, and the additive is at least one of oxides of Zn, Na, K, Mg and Cu. The method can efficiently remove oxygen at a low temperature by catalytic deoxidation, thereby reducing the amount of VOCs to be treated and achieving safety and environmental protection.

The invention provides a smelting method for dephosphorization in a converter, which comprises the following steps: carrying out oxygen blowing smelting on molten steel in the converter to obtain first molten steel when the end point of oxygen blowing smelting is reached, the carbon content in the first molten steel is 0.02-0.05%, and the temperature of the first molten steel is 1580-1630 DEG C; oxygen blowing is switched into nitrogen blowing, nitrogen blowing smelting is conducted on the first molten steel, after the molten steel in the converter reaches the preset temperature, the nitrogen blowing smelting end point is reached, converter molten steel is obtained, and the preset temperature ranges from 1550 DEG C to 1570 DEG C. According to the smelting method, the phosphorus content of the molten steel can be stably controlled to be smaller than or equal to 0.01% by controlling the oxygen blowing end point parameters and the nitrogen blowing technology, and the production requirement of the ultra-low phosphorus steel is met; oxygen does not need to be reblown, steel loss is reduced, and the production cost is remarkably reduced; the problems of reblowing and too thin slag are reduced, the erosion rate of the furnace lining is reduced, the service life of the furnace lining is prolonged, and the operation rate and production efficiency of the converter are improved.

In response to an engine temporary stop request, a quantity of oxygen stored in a catalytic converter is reduced by controlling an in-cylinder air fuel ratio to be richer than stoichiometric. The quantity of stored oxygen is calculated while the engine is operating. An amount of air fuel ratio enrichment is set based on the quantity of stored oxygen calculated when the stop request occurs, such that the amount of air fuel ratio enrichment decreases as the quantity of stored oxygen decreases. An opening of a throttle valve is reduced in response to the stop request. Engine stop is permitted when the reduction of the opening of the throttle valve causes an internal pressure of an intake passage downstream of the throttle valve to reach a predetermined negative pressure, and the air fuel ratio enrichment operation causes the quantity of stored oxygen to reach a predetermined target value.

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.

Provided is a method for maintaining the freshness of cut lettuce, said method comprising: a step (I) for accommodating cut lettuce (A) and an atmosphere adjuster package (B) that has an oxygen absorption ability in a packaging material (C), thereby obtaining a vegetable package (X); and a step (II) for holding the vegetable package (X), wherein in the step (I), the vegetable package (X) satisfies requirement (i) and requirement (ii). Requirement (i) is that the ratio of an oxygen reduction rate to an oxygen exchange rate is 2.0-4.0. Requirement (ii) is that the ratio of a carbon dioxide increase rate to a carbon dioxide exchange rate is 2.0-4.0.

The invention relates to the technical field of snore monitoring and snore stopping, in particular to a snore stopping instrument control system and a snore stopping method thereof.The snore stopping method comprises the steps that snore audio signals and blood oxygen saturation signals are collected based on a sensor, environmental noise is removed through band-pass filtering, trend extraction is conducted on a blood oxygen curve, and an effective signal set is determined; frequency spectrum features of snore are extracted based on the audio signals, and in combination with the fluctuation trend of the oxyhemoglobin saturation signals, the feature frequency of airway obstruction is determined; anti-phase compensation sound waves are generated on the basis of the characteristic frequency locked in the obvious oxygen deficit state of the airway, and are matched with the resonant frequency of the airway through Huffman coding optimization; compensation sound waves are directionally transmitted to a narrow position to form standing waves through a phased array loudspeaker array and an acoustic lens, and an airway is triggered to vibrate and expand. The initial amplitude is set in combination with the blood oxygen decreasing rate, the array element phase difference is adjusted through the phased array loudspeaker array according to a preset airway three-dimensional model, and the compensation sound waves are directionally focused on the blocked part.