439 results about "Oxygen uptake" patented technology

A mobile phone apparatus for performing sports physiological measurements and generating target workout information includes a motion detector, a physiological parameter detector, a portable housing, and a processing module. The motion detector detects motion of a user performing exercise, the physiological parameter detector detects physiological parameters of the user, the portable housing houses the processing module, and the processing module is coupled to the motion detector and the physiological parameter detector. The processing module establishes a series of workout stages having varying exercise intensities, estimates at least one of a maximum oxygen uptake quantity ({dot over (V)}O2max) and an anaerobic threshold (AT) of the user performing exercise with reference to data obtained by the motion detector and the physiological parameter detector, and generates target workout information to the user performing exercise.

Minimally invasive systems and methods are provided for diagnosing conditions in target lung compartments. Using catheters capable of isolating the target lung compartments and measuring one or more of collateral ventilation, pressure, flow rate, and volume, conditions such as hyperinflation, compliance, gas exchange including oxygen uptake, directionality of collateral channels, blood flow, and blood flow per unit lung volume may be assessed.

The present invention provides a performance assay that measures the total antioxidant activity of a composition using oxygen uptake in contrast to prior art methods that measure antioxidant capacity by indirectly measuring degradation of a fluorescent compound by following the disappearance of fluorescence. Using the performance antioxidant assay of the present invention, an antioxidant composition having synergistic activity is provided by the present inventors that includes flavonoids such as the flavonol quercetin, mixed tocopherols or tocotrienols, grape skin extract, green tea extract and bush plum. The antioxidant activity of the present composition exceeds 6,000 micromoles Trolox equivalent units per gram using the present invention.

Disclosed is An exercise guide apparatus comprising: a sensing unit configured to obtain a heart rate of a subject; a strength determining unit configured to determine a maximal oxygen uptake of the subject; an exercise intensity measurement unit configured to determine a current exercise intensity of the subject based on the heart rate obtained by the sensing unit; and an exercise guide unit configured to estimate a fat oxidation rate of the subject, determine whether or not fat oxidation of the subject occurs, generate guide information according to a result of the determination of the occurrence of fat oxidation, and display the guide information generated, wherein the fat oxidation rate is estimated based on a ratio of fat being oxidized at the current exercise intensity to the maximal oxygen uptake, and wherein the occurrence of fat oxidation is determined by checking whether or not the fat oxidation rate estimated is greater than a threshold.

An oxygen scavenging packet containing an iron-based oxygen scavenger and an electrolyte is set forth in which the rate of uptake of oxygen is increased by virtue of the introduction into the packet of an oxygen uptake accelerator containing water. Methods of increasing the rate of oxygen absorption by use of the iron-based oxygen scavenging packet are also set forth.

The performance of a mammal, manifested as a reduced oxygen uptake (VO2) during physical exercise, can be enhanced by administering to said mammal a non-toxic amount of nitrate and / or nitrite. Liquid, semi-solid and solid snack and food products and nutritional supplements, such as sport drinks are made available.

A device for directly measuring a person's respiratory exchange ratio (RER) utilizes a Zn-air battery cell and a constant current load circuit as an O2 pump capable of drawing oxygen from expired air. A thermistor located in the flow path forms a leg of a bridge circuit whose output is proportional to oxygen concentration in the expired air and, therefore, to oxygen uptake. The thermistor flowmeter circuit utilizes the thermal conductivity differences between O2 and CO2 to provide a measure at the relative ratio of the two gases present.

The invention belongs to the field of sports research, in particular to a scientific fitness guidance system. The system realizes the collection on the basic information of human bodies, test on comprehensive sports ability and comprehensive analysis and evaluation on conditions of body functions. The system comprises a total control analytic host machine which is respectively connected with a body composition tester, a balance capacity tester, a bone mineral density tester, a flexibility tester, a physical strength tester, a maximal oxygen uptake tester and a reaction time tester through a local area network; the contribution of the scientific fitness guidance system to the prior art is to simply and rapidly provide comprehensive human body experiment test data for establishing a test program and method of sports function of adults and an evaluation method of comprehensive sports ability and constructing a scientific sports fitness evaluation and guidance system of Chinese citizens; the scientific fitness guide system realizes one-time test on the comprehensive data of human bodies and can rapidly and accurately carry out the comprehensive analysis and evaluation on physical conditions by setting threshold values to finish the formulation of a personalized sports fitness guidance scheme.

The performance of a mammal, manifested as a reduced oxygen uptake (VO2) during physical exercise, can be enhanced by administering to said mammal a non-toxic amount of nitrate and / or nitrite. Liquid, semi-solid and solid snack and food products and nutritional supplements, such as sport drinks are made available.

The invention relates to an intelligent servo oxygen therapy control system, which is mainly formed by a blood oxygen measuring device (1), a communication module (2), a control unit (3), an electronic flow valve (4), an information reminding module (5), an oxygen input port (6), and an oxygen output port (7). The anoxia degree of a patient is judged by adopting an oxygen saturation value obtained in real time, and an oxygen therapy scheme is given by a built-in oxygen therapy data model, so the medical treatment of an oxygen uptake link is more precise and scientific; the dynamic oxygen saturation value is adopted, change of the anoxia degree of the patient is judged in a tracing manner, and an oxygen therapy flow value is automatically corrected by the control unit, so not only is the clinical effect of the oxygen therapy ensured, but also unnecessary consumption of oxygen is reduced and a large quantity of cost is saved for medical units.

The invention discloses a heart rate estimation method and device. The heart rate estimation method comprises the following steps: screening heart rate and corresponding speed from historical motion data when sensor signals are reliable in quality; calculating the actual oxygen uptake amount according to speed, heart rate, personal parameters and a running quotient model; establishing a relation model of speed, heart rate and actual oxygen uptake amount; and calculating stable end-point heart rate at the real-time speed according to real-time speed and the relation model. Through relations ofhistorical motion data, a mathematic model is established so that speed, heart rate, personal parameters and the actual oxygen uptake amount are correlated. The real-time speed can be plugged into themathematic model to estimate heart rate of a user. The heart rate estimation method and device can be used in a scenario where signals of a heart rate sensor are not reliable or the heart rate sensorcannot obtain accurate heart rate and other scenarios.

Specific oxygen uptake (OUR) is used as a process control parameter in fermentation processes. OUR is determined during at least the production phase of a fermentation process, and process parameters are adjusted to maintain the OUR within desired ranges. The invention is particularly applicable when the fermentation is conducted using a microorganism having a natural PDC pathway that has been disrupted so that it no longer functions. Microorganisms of this sort often produce poorly under strictly anaerobic conditions. Microaeration controlled by monitoring OUR allows the performance of the microorganism to be optimized.

The invention relates to a soilless cultivation system of capillary hydroponics, comprising a plurality of culturing grooves, a liquid storage tank, a liquid feeding pipe, a water pump, a flowmeter, a timer, a first backflow pipe, a second backflow pipe, a backflow tank, a pressure pump, a water filtering and disinfecting device, and a fertilizer blending tank. The tables for fixing and putting plants in the culturing grooves of the soilless cultivation system of capillary hydroponics are set fixedly, such that there is no damage to the roots of plants because of the liquid level changes of the nutrient solution and no worry about water or power cut because of the 5cm height of the nutrient solution. The invention adopts the root separating method to solve the conflict of oxygen uptake and liquid supplement with low consumption of energy. in addition, The bottom of the culturing groove can be provided with a culturing frame having the function of supporting to completely change the traditional stooping or squatting working way of the workers in the past, which is not only good for easy operation and management, but also for easy cleaning of the residue roots after harvesting. So the labor intensity can be reduced.

In allusion to the fact that currently patient who needs nebulizer therapy also needs oxygen therapy at the same time clinically, a more smooth oxygen conveying device needs to be rapidly used to carry out oxygen therapy after nebulization is finished, and frequent device replacement can apparently increase nursing burden and hospitalization costs. The device of driving liquid to be nebulized by gas can achieve complete and rapid switch between a nebulization state and an oxygen uptake state. A second air outlet is formed in the device, and a sealing part is arranged on the device. When the patient needs the oxygen therapy, sealing to the second air outlet is relieved by adjusting the sealing part, oxygen can go out smoothly, and the patient can receive the oxygen therapy. When the patient needs the nebulizer therapy, the second air outlet is sealed by adjusting the sealing part, liquid medicine in the device is nebulized, and the patient can receive the nebulizer therapy. The device of driving the liquid to be nebulized by the gas not only reduces workload of medical workers, but also meets requirements of safe and rapid switch between the nebulization state and the oxygen uptake state clinically.

The invention discloses a multichannel microfluidic-solid phase extraction-mass spectrum combined device and a preparation method. The combined device comprises a microfluidic chip and a mass spectrometer, wherein the microfluidic chip is provided with upper and lower layers of channels; the upper layer of channel is a cell culture channel; the two ends of the upper layer of channel are provided with a vertical hole and a horizontal hole respectively; the lower layer of channel is a chemical oxygen uptake channel; the two ends of the lower layer of channel are provided with a plurality of groups of vertical holes respectively, and the upper and lower layers of channels are connected through a layer of PDMS (Polydimethylsiloxane) membrane; C18 spherical particles are filled on one side of the upper layer of channel to form a filling column; the horizontal hole of the upper layer of channel is connected with the mass spectrometer. The physiological behaviors of cells under different oxygen environments can be simultaneously observed, and control experiment, multi-concentration gradient parallel stimulation and multi-region detection can be realized at one time. Through separation and enrichment of the solid-phase extraction chip, mass spectrum real-time detection is realized, cell metabolites can be more intuitively and more accurately detected, and a theoretical basis is provided for research of tumor cell hypoxia.

The invention relates to a multi-purpose hydrogen-rich cup and a using method thereof. The multi-purpose hydrogen-rich cup comprises a cup seat and a cup body, wherein the cup seat and the cup body are connected detachably; a fixing ring is inserted in the bottom of the cup body; a cathode and an anode are vertically arranged on the fixing ring; an ion exchange membrane is further arranged between the cathode and the anode; the cathode and the anode are electrically connected with a control circuit board placed in a base; a hollow handle is further arranged on one side of the cup body in a communication manner; the lower end of the handle is arranged at a position, which faces the cathode, in the cup body; the upper end of the handle upwards extends to a position below a water injection line marked on the upper part of the cup body; a cup cover seat is arranged at the upper end of the cup body; a push type atomizing spray head is arranged on the cup cover seat; the lower part of the push type atomizing spray head communicates with a water sucking tube; the water sucking tube downwards extends to a position above the cathode; the cup seat is further hinged to a cup cap for covering the atomizing spray head; and the cup cap is matched with a fastening part on the cup seat and is connected with the fastening part on the cup seat by a buckle. The multipurpose hydrogen-rich cup has the beneficial effects that the multipurpose hydrogen-rich cup has functions of drinking, atomizing beautifying, oxygen uptake, acidic water using and the like, and is convenient to use.

The invention discloses an exercise test scheme and a calculation method for a cardiopulmonary function, and belongs to the field of health assessment. A maximal oxygen uptake is a key assessment index of aerobic exercise ability and a core index to reflect an exercise cardiopulmonary function; moreover, in all-cause death attribution analysis, a low cardiopulmonary function is an all-cause death factor ranked first and therefore the assessment on the exercise cardiopulmonary function is very necessary; however, to directly test an oxygen uptake, a very precise instrument is required; and the equipment is expensive and therefore cannot be applied in the field of public fitness. In the method, by researching the shortages of a previous method in depth, an incremental load scheme that measures the maximal oxygen uptake under a secondary high intensity exercise is formulated; on the basis of observing a heart rate reaction after a small-load (25W) excise, a load at a second level is determined; and meanwhile, in a stage of an open test, effective data can be guaranteed to be collected; and based on this, according to a result obtained by the test, a new calculation method for the maximal oxygen uptake is provided; and the method of multipoint regression is adopted, so the error caused by heart rate fluctuation in previous two-point calculation is greatly reduced.

A device for directly measuring a person's respiratory exchange ratio (RER) utilizes a Zn-air battery cell and a constant current load circuit as an O2 pump capable of drawing oxygen from expired air. A thermistor located in the flow path forms a leg of a bridge circuit whose output is proportional to oxygen concentration in the expired air and, therefore, to oxygen uptake. The thermistor flowmeter circuit utilizes the thermal conductivity differences between O2 and CO2 to provide a measure at the relative ratio of the two gases present.

The performance of a mammal, manifested as a reduced oxygen uptake (VO2) during physical exercise, can be enhanced by administering to said mammal a non-toxic amount of nitrate and / or nitrite. Liquid, semi-solid and solid snack and food products and nutritional supplements, such as sport drinks are made available.

A system for monitoring municipal saprobia inhibitive ability in real time based on oxygen uptake rate (OUR) comprises an aeration siphon device communicated with a sewage supplying system and a sludge supplying system. The aeration siphon device is composed of an aeration groove and a siphon groove in adjoining mode, the wall of the aeration groove is higher than that of the siphon groove, the aeration groove is communicated with the sewage supplying system and the sludge supplying system, and the siphon groove is communicated with an inlet of a closed coiler flow-pushing type bioreactor through a siphon tube. A dissolved oxygen (DO) detection system detects DO values of the inlet and an outlet of the closed coiler flow-pushing type bioreactor, and the signal output end of the DO detection system is connected onto a programmable logic controller (PLC) control system which is connected with an alarm system. The core part of system for monitoring municipal saprobia inhibitive ability in real time adopts the closed coiler flow-pushing type bioreactor so as to monitor the DO value of the inlet and the DO of the outlet in real time, automatically calculate mutation condition of activated sludge OUR, determines OUR mutation rate with different inhibition degree through plenty of experiments, and judge inhibitable degree of the saprobia by comparing automatically calculated OUR mutation rate with a preset value.

In an apparatus having an internal combustion engine, a catalytic device for treating emissions from the engine, an upstream oxygen sensor positioned upstream of the catalytic device, a downstream oxygen sensor positioned downstream of the catalytic device, and a controller configured to determine a NOx storage capacity of the catalytic device from a difference between a signal received from the upstream oxygen sensor and a signal received from the downstream oxygen sensor, a method of operating the engine is disclosed, the method including operating the engine at a rich air / fuel ratio for a first interval; adjusting a temperature of the catalytic device to a diagnostic temperature for measuring an oxygen uptake by the catalytic device; operating the engine at a lean air / fuel ratio for a second interval; and adjusting the temperature of the catalytic device to an operating temperature.

The invention discloses a method for determining activated sludge treatment capacity. The method comprises the steps that 1, respiration map analysis is conducted on activated sludge of an aeration tank of a sewage plant, and the oxygen uptake rate (OUR) value is determined; 2, the activated sludge of the aeration tank of the sewage plant is mixed with raw water for an aeration test; 3, the value of sludge concentration of the aeration tank of the sewage plant is tested, all the oxygen uptake rates (OUR) are divided by the sludge concentration MLSS, and the specific oxygen uptake rate (SOUR) is obtained; 4, an SOUR curve obtained through the aeration test is drawn, and two time points t1 and t2 are obtained according to derivative change characteristic points; 5, if t2 is in a defined safe area, effluent of a sludge treatment system can reach the standard safely. According to the method for determining the activated sludge treatment capacity, the activated sludge treatment capacity can be analyzed and determined according to an activated sludge respiration map and aeration test data. By means of the method, technical staff of the sewage plant can understand the treatment capacity of current activated sludge treatment, operating parameters are adjusted in time, and guiding suggestions are provided for reasonable operation, energy saving and consumption reduction of the sludge plant.

The invention relates to a soilless cultivation groove of capillary hydroponics, comprising a groove body, a seepage prevention film, a table for fixing plant, a hydrophilic non-woven fabric, and a groove cover. The table for fixing and putting plants in the culturing groove of the soilless cultivation system of capillary hydroponics is set fixedly, such that there is no damage to the roots of plants because the liquid level of the nutrient solution is changed by the influence of external temperature and no worry about water or power cut because of the 5cm height of the nutrient solution. The invention adopts the root separating method to solve the conflict of oxygen uptake and liquid supplement in the way of making one part of roots on the surface of the non-woven cloth to adsorb oxygen in air and the other part in nutrient fluid to adsorb nutrition and water. The bottom of the culturing groove can be provided with a culturing frame having the function of supporting to completely change the traditional stooping or squatting working way of the workers in the past, which is not only good for easy operation and management, but also for easy cleaning of the residue roots after harvesting. So the labor intensity can be reduced.

The invention discloses a coal spontaneous combustion tendency identification method based on double-oxygen uptake. The coal spontaneous combustion tendency identification method comprises the following steps: putting a broken and filtered coal sample in a spiral reactor, putting the reactor in a set constant temperature furnace, introducing in dry air, determining oxygen concentrations at the outlet of the reactor under the conditions of 30 DEG C and 90 DEG C respectively, converting the physical oxygen consumption and the chemical oxygen consumption in every gram of coal sample in the low-temperature oxidation process respectively according to the change of the oxygen concentrations, and carrying out weight calculation through the two parameters to obtain a coal spontaneous combustion tendency determination index, wherein the larger the value of the index is, the easier the spontaneous combustion is. Through the obtained technical effect, the physical oxygen consumption and the chemical oxygen consumption in the low-temperature oxidation process are effectively combined to identify coal spontaneous combustion tendency, therefore, the disadvantage that the coal spontaneous combustion tendency cannot be comprehensively evaluated by a physical oxygen adsorption method singly depending on coal is effectively overcome. A double-oxygen uptake method can be used for identifying the coal spontaneous combustion tendency more scientifically and reasonably, the implementation method and the test process are easy and feasible, and the standard of classification is unified.

The present invention provides a human body maximum oxygen uptake evaluation method based on a BP neural network. The method comprises the following steps: collecting subject's data, wherein the data includes the weight, the age, the sex, the time of running 1600m and the instant heart rate after running; obtaining the subject's sex information at the same time; and performing standard conversion of the sex, the age, the time of running 1600m and the instant heat rate after running to take as parameters, inputting the maximum oxygen uptake BP neural network, and measuring the subject's maximum oxygen uptake, wherein the maximum oxygen uptake BP neural network is provided with an input layer, an output layer and one hiding layer, the input is provided with 5 input nerve cells, the hiding layer is provided with 11 nerve cells, and the output layer is provided with one nerve cell. The human body maximum oxygen uptake evaluation method can rapidly obtain the accurate maximum oxygen uptake result with no need for expensive device investment and is suitable for population cardiopulmonary function analysis in a large sample size.

The invention discloses a multifunctional hydrogen water oxygen generation drinking machine, which belongs to the field of water dispensers. The multifunctional hydrogen water oxygen generation drinking machine at least comprises a base assembly, a hydrogen-oxygen separating assembly, a shell assembly, a water dispenser assembly and a water storage assembly, wherein the hydrogen-oxygen separating assembly and the shell assembly are installed on the base assembly, the water dispenser assembly is arranged on the upper part of the shell assembly, and the water storage assembly is arranged on the upper part of the water dispenser assembly. The hydrogen-oxygen separating assembly is used for electrolyzing water in a tank room, oxygen generated by anode electrolysis is used for supplementing oxygen uptake for people through an oxygen output pipe of the water dispenser assembly or is filled in an air conditioner to improve indoor air environment; hydrogen generated by cathode electrolysis is filled in the water dispenser assembly to provide hydrogenated drinking water for people so as to remove radicals, balance human body pH value and improve the human body microcirculation, and the hydrogenated drinking water has the functions of regulating intestines and stomach, reinforcing blood flow speed, preventing thrombosis, protecting the heart and improving human immunity. The oxygen generated by electrolysis of the multifunctional hydrogen water oxygen generation drinking machine disclosed by the invention can be directly used after being generated, thereby being convenient to use.

An on-line respirometer and method for using the same is disclosed for determining the oxygen uptake of respiring samples. An overflow drain in the side portion of an enclosed reaction vessel is located to define an operational volume of slurry sample and headspace gases. The slurry sample is agitated using a mixer and / or a pump which recirculates the headspace gases through the slurry. Oxygen probes inserted into the headspace and the slurry sample determine the level of dissolved oxygen within the slurry sample and the headspace. The fixed ratio of available oxygen to oxygen demand is sufficient to measure the oxygen uptake directly, without the need for oxygen supplementation, for simple, fast and accurate analysis.

The invention discloses an aeration control system. The system comprises a data acquisition unit, a PLC (programmable logic controller) control unit and an aeration unit, wherein the data acquisition unit comprises an OUR (oxygen uptake rate) tester and a DO (dissolved oxygen) tester, and the aeration unit comprises an air blower, a micropore aeration head and a flowmeter. The invention further provides an aeration control method adopting the aeration control system. System automatic control software calculates the aeration quantity required to be supplied in combination with the OUR value and DO value automatically acquired by an online tester as well as the OTE value calculated according to the OUR value and the aeration quantity by inputting an automatic control algorithm, a signal is output to change the flow of air blowing, the DO is stabilized at the set value, the deviation doesn't exceed 0.5 mg / L, dynamic balance of supply and demand of oxygen is realized, the problem of poorer effluent quality due to insufficient oxygen supply can be solved completely, besides, energy waste caused by excessive aeration can also be reduced, and the function of evaluating the performance of the aeration system is realized.