186 results about "Target concentration" patented technology

A system and method for controlling the administration of medication to a patient utilizes adaptive feedback to achieve and maintain a target effect in said patient. A sensor package having one or more sensors is used to sense an attribute of the patient and to provide a parameter indicating the attribute being sensed. A medication delivery controller accepts one or more parameters from the sensor package and uses these parameters to determine the effect of a medication on a patient and the concentration level of medication that will achieve a desired effect. The medication delivery controller controls the medication delivery unit to deliver the medication at a rate determined to achieve said target concentration level of said medication in said patient. If the patient's response to a given medication changes as a result of external stimuli, the medication delivery controller can detect this change and determine a new concentration level of medication which will achieve the desired effect. The medication delivery controller can steer the medication delivery unit to administer an amount of medication to reach this new concentration level.

A method quantifies a target compound selected from the group consisting of a polynucleotide or a protein present in a sample solution. The method includes putting into contact a target compound with a capture probe and detecting signals resulting from the binding between the target compound and its corresponding capture probe and resulting from the printed detection molecule in the different discrete regions. The method obtains a detection curve of the detected signals of the detection molecule and converts the signal obtained from the target compound bound to a specific capture probe into a concentration value and quantifies the target compound by converting the concentration value into a target amount using a target concentration curve.

A system, including methods and apparatus, for performing a digital assay on a number of sample-containing replicates, each containing a plurality of sample-containing droplets, and measuring the concentration of target in the sample. Statistical meta-analysis techniques may be applied to reduce the effective variance of the measured target concentration.

A process is provided for producing target concentrations of peroxycarboxylic acids from carboxylic acid esters. More specifically, carboxylic acid esters are reacted with an inorganic peroxide, such as hydrogen peroxide, in the presence of an enzyme catalyst having perhydrolysis activity under conditions where control of reaction pH by selection of buffer concentration and concentration of perhydrolase and reactants produces a targeted concentration of peroxycarboxylic acids. The present perhydrolase catalysts are classified as members of the carbohydrate esterase family 7 (CE-7) based on the conserved structural features. Further, disinfectant formulations comprising the peracids produced by the processes described herein are provided, as are corresponding methods of use.

An infusion system includes a characteristic determining device and an infusion device. The characteristic determining device includes a receptacle for receiving and testing an analyte from the user to determine a concentration of the analyte in the user. The characteristic determining device also includes a communication system for transmitting a communication including data indicative of the determined concentration of the analyte in the user, and the infusion device includes a communication system for receiving the communication from the characteristic determining device. The infusion device further includes a bolus estimator for calculating an estimated amount of fluid to be infused into the body of the user based upon the received data indicative of the determined concentration of the analyte in the user and a target concentration of the analyte in the user, and an indicator to indicate when the estimated amount of fluid to be infused has been calculated.

An infusion system includes a characteristic determining device and an infusion device. The characteristic determining device includes a receptacle for receiving and testing an analyte from the user to determine a concentration of the analyte in the user. The characteristic determining device also includes a communication system for transmitting a communication including data indicative of the determined concentration of the analyte in the user, and the infusion device includes a communication system for receiving the communication from the characteristic determining device. The infusion device further includes a bolus estimator for calculating an estimated amount of fluid to be infused into the body of the user based upon the received data indicative of the determined concentration of the analyte in the user and a target concentration of the analyte in the user, and an indicator to indicate when the estimated amount of fluid to be infused has been calculated.

The invention discloses a method for controlling an etching solution concentration, which comprises the following steps: setting a target concentration value of an etching solution; extracting an etching solution sample; diluting the etching solution sample by using propanediol; measuring the concentration of the etching solution sample to obtain a measured concentration value; and adjusting the concentration of the etching solution to the target concentration value according to a difference value between the target concentration value and the measured concentration value. Without using poisonous substance in an analysis process of the etching solution concentration, the method can reduce the burden on environment in the control process of the etching solution concentration.

The invention relates to an etching liquid replenishing device, an etching liquid replenishing method and wet etching equipment with the etching liquid replenishing device. The etching liquid replenishing device disclosed by the invention comprises a liquid inlet pipe, a liquid outlet pipe, a liquid storage tank, a liquid replenishing unit, a concentration detection unit and a processing unit, wherein the liquid inlet pipe and the liquid outlet pipe are communicated with an etching tank; the liquid storage tank is communicated with the etching tank through the liquid inlet pipe and the liquid outlet pipe; the liquid replenishing unit is used for replenishing spare solutions of various components of the etching liquid to the liquid storage tank; the concentration detection unit is used for detecting concentrations of various components of at least one of the liquid storage tank, the etching tank, the liquid inlet pipe and the liquid outlet pipe; the processing unit is used for calculating volumes of the spare solutions of various components needing to be replenished into the liquid storage tank according to a concentration detection result, target concentration ranges of various components in the etching liquid, volume of the etching liquid in the liquid storage tank and concentrations of the spare solutions of various components; and the liquid replenishing unit is used for replenishing the spare solutions of various components to the liquid storage tank according to a calculation result, so that the concentrations of various components are adjusted to be in the target concentration ranges. According to the invention, stability of the concentrations of various components of the etching liquid can be effectively ensured.

An oxygen concentration in the interior of a container is detected by an oxygen concentration detection sensor. If the oxygen concentration detected by the oxygen concentration detection sensor is higher than that of a gas mixture, the container is supplied with the gas mixture having an oxygen concentration lower than that of the outside air and higher than a target concentration. The oxygen concentration in the interior of the container is reduced to the vicinity of the oxygen concentration of the gas mixture by supplying the interior of the container with the gas mixture, and then is further reduced to the target concentration by respiration of plants. This appropriately controls the oxygen concentration in the interior of the container, and reduces a decrease in the degree of freshness of the plants.

The invention provides a vehicle interior ventilation control method and device and belongs to the technical field of vehicles. By means of the vehicle interior ventilation control method and device, the problem that in the prior art, the degree of comfort of the driving environment is not high is solved. The vehicle interior ventilation control method comprises the steps that when a vehicle static ventilation mode is started, a vehicle air conditioner is controlled to enter the external cycle work mode and an air blower of the air conditioner is started when the oxygen concentration and the concentration of carbon dioxide are changed in the first preset time value; and when a high-speed driving ventilation mode is started, according to the detected oxygen concentration, the concentration of carbon dioxide, environment temperatures inside and outside a vehicle as well as the set target temperature, a temperature motor is controlled to work on the promise of ensuring that the oxygen concentration and the concentration of carbon dioxide are maintained at the target concentration values, so that the temperature in the vehicle is maintained at the target temperature. The vehicle interior ventilation control device is used for implementing the vehicle interior ventilation control method. According to the control method and device, the comfort and safety of the environment in the vehicle can be effectively improved when the vehicle is in a running or stop state.

This disclosure describes systems, methods, and apparatus for forming concentrates of platelet-rich plasma or bone marrow cells having user-defined concentrations, concentration ranges, and / or volumes. Whole blood or bone marrow samples can be passed through one or two separation operations in which platelets or bone marrow cells are separated from red blood cells and concentrated in a plasma. During this separation and concentrating, a total number of platelets or bone marrow cells or a concentration of either is determined and then used to ascertain what volumes and concentrations need be mixed in order to produce a platelet-rich plasma concentrate or a bone marrow-rich plasma concentrate having a target concentration and / or volume.

This invention is directed to various protocols for reprocessing off-spec gas to produce a concentration of off-spec gases to a desired target concentration. A combination of source gases is blended with the off-spec gas. This technique has the effect of enabling relatively small adjustments to the concentration of off-spec gas. Processes are also described that incorporate the blending protocols.

A toner dispensing system and a method for controlling the same. A toner dispensing amount is determined using a pixel dispensing time related to a pixel count adjusted according to the ratio of a transition count to a pixel count per page, a Δ automatic concentration control dispensing time relating to the difference between the toner concentration of a developer material and target concentration, and a dispensing rate corresponding to a print job length. The determined amount of toner is dispensed into a developer housing. This method can maintain a toner concentration in order to obtain an accurate image density. A remaining toner ratio (%) determined from a total dispensing time, a dispensing rate, and a toner capacity can also be displayed so that the user can monitor the remaining amount of toner, the used amount of toner, etc., during the life of the toner cartridge.

The invention relates to a Czochralski zone melting gas doping method for preparing a zone-melted silicon single crystal. The method is characterized by comprising the following steps of: doping, pulling polycrystalline silicon by a Czochralski method, machining and annealing the polycrystalline silicon, putting into a zone melting furnace, pulling the single crystal by a zone melting method, and introducing a certain amount of dopant gas in the process of pulling the crystal by the zone melting method, wherein the introduction amount of the dopant gas is gradually reduced or increased; and if the target concentration of a dopant of the zone-melted silicon single crystal is c0, controlling the concentration of the dopant at the tail of the polycrystalline silicon to be c0, wherein k is the segregation coefficient of the dopant. The concentration of the dopant of the polycrystalline rod is uniform, and gas doping is not required to be performed at a retention stage, so the concentration uniformity of a silicon melt is extremely high. Therefore, compared with a neutron transmutation doping (NTD) method, the method is low in cost and short in production period; and compared with a zone melting gas doping method and a Czochralski zone melting method, the method has the advantage that: the radial resistivity uniformity of the zone-melted single crystal is effectively improved.

The present invention makes it easy to control the amount of material gas led out of a tank. Accordingly, carrier gas is introduced into a tank containing a material and together with the carrier gas, from the tank, material gas produced by vaporization of the material is led out. A control part controls the flow rate of the carrier gas so that a concentration index value obtained by measuring mixed gas led out of the tank and indicating the concentration of the material gas in the mixed gas comes close to a predetermined target concentration index value. In addition, the control part controls the flow rate of the carrier gas to change at a predetermined change rate, and then controls the flow rate of the carrier gas on the basis of the deviation between the concentration index value and the target concentration index value.

Disclosed herein is a container refrigeration apparatus (10) for cooling air in a container (11). The container refrigeration apparatus (10) includes: a gas supply device (30) which produces nitrogen-enriched air having a higher nitrogen concentration than outside air and supplies the nitrogen-enriched air into the container (11) via a supply passage (44); an oxygen concentration sensor (51) which measures an oxygen concentration of the air in the container (11); and a controller which controls the operation of the gas supply device (30) so that the oxygen concentration measured by the oxygen concentration sensor (51) reaches a target concentration. The container refrigeration apparatus (10) is provided with a measurement passage (88) which guides part of the nitrogen-enriched air passing through the supply passage (44) to the oxygen concentration sensor (51), and an on-off valve (82) is provided for the measurement passage (88).

A method is provided for determining the concentration of target in a fluid sample using a magnetic label and a magnetic sensor for detection. It was surprisingly found that efficient and accurate measurements can be carried out by determination of a signal as soon as the signal has reached a specified threshold level. In an alternative embodiment, a displacement step is used as soon as the signal has reached a pre-defined threshold level.

The invention discloses an information obtaining method, which comprises the following steps of determining a time period to be analyzed and the preset time interval in the time period to be analyzed,wherein the time period to be analyzed comprises N preset time intervals; then, obtaining the contaminant concentration information set in each preset time interval; next, determining a target concentration value meeting the preset conditions in the contaminant concentration information set as the region background concentration, wherein the region background concentration is the target contaminant concentration value which is simultaneously observed from all monitoring units in the preset designated cell, is from the accumulated contaminants from the upwind direction on the units and is diffused into the cells through transmission; finally, determining the region background concentration in each preset time interval. The method and the device have the advantages that the information reflecting the region background concentration and the information reflecting the local discharge contribution can be distinguished; the discharge responsibility is strictly distinguished; the targeted improvement on atmospheric pollution can be facilitated.

The invention discloses a method for preparing an epoxy compound standard solution, which comprises the following steps: a, accurately weighing a certain quantity of epoxy compound lyosorption by a weight reduction weighing method; b, adsorbing epoxy compound gas into the epoxy compound lyosorption obtained in the step a so as to obtain a primary epoxy compound solution and determining the quantity of the adsorbed epoxy compound by the weight reduction weighing method; c, adding a certain quantity of epoxy compound lyosorption into the primary epoxy compound solution obtained in the step b and determining the quantity of the added epoxy compound lyosorption by the weight reduction weighing method so as to obtain the epoxy compound standard solution with the target concentration. The invention also discloses a method for measuring the concentration of the epoxy compound by utilizing the epoxy compound standard solution. The methods disclosed by the invention are simple and safe to operate and have high accuracy and good repeatability.

The invention discloses a control method for gas concentration in a freshness-retaining drawer. The control method comprises the following steps: acquiring current freshness-retaining gas concentration in a storage room, and comparing the acquired current freshness-retaining gas concentration with a preset threshold value to determine whether to input freshness-retaining gas into the storage room or not; or adopting a timing input method to control whether to input the freshness-retaining gas into the storage room or not. According to the control method, the freshness-retaining gas is selectively input into the storage room, so that the freshness-retaining gas concentration in the storage room can be controlled to be higher than target concentration, thereby greatly prolonging the freshness-retaining service life of food; and meanwhile, economical efficiency of the freshness-retaining gas is also taken into consideration.

An infusion system includes a characteristic determining device and an infusion device. The characteristic determining device includes a receptacle for receiving and testing an analyte from the user to determine a concentration of the analyte in the user. The characteristic determining device also includes a communication system for transmitting a communication including data indicative of the determined concentration of the analyte in the user, and the infusion device includes a communication system for receiving the communication from the characteristic determining device. The infusion device further includes a bolus estimator for calculating an estimated amount of fluid to be infused into the body of the user based upon the received data indicative of the determined concentration of the analyte in the user and a target concentration of the analyte in the user, and an indicator to indicate when the estimated amount of fluid to be infused has been calculated.

The invention provides a portable type multi-component gas diluting device. The portable type multi-component gas diluting device comprises a diluting pipeline, a first to-be-diluted pipeline and a second to-be-diluted pipeline, wherein the diluting pipeline is used for conveying diluting gas; the first to-be-diluted pipeline is used for conveying first to-be-diluted gas; the second to-be-diluted pipeline is used for conveying second to-be-diluted gas; the first to-be-diluted pipeline, the second to-be-diluted pipeline and the diluting pipeline are communicated by a tee valve, and the flows of the first to-be-diluted pipeline, second to-be-diluted pipeline and diluting pipeline are collected onto an exit pipeline after passing through a mass flowmeter, and discharged through a standard gas outlet. The portable type multi-component gas diluting device has the advantages that by arranging multiple to-be-diluted pipelines and diluting gas, multiple types of gases with target concentrations can be prepared simultaneously; the multi-component gas can be simultaneously prepared, and the study problem of crossing interference of gas in the smoke detection field is solved.

The invention discloses a layering remediation method for heavy metal contaminated soil. The layering remediation method comprises the following steps: carrying out geological investigation on contaminated soil; dividing the soil into upper-layer metal severely contaminated soil and bottom-layer metal mildly contaminated soil according to the longitudinal concentration distribution of pollutants,and determining a middle boundary line; digging out the upper-layer metal severely contaminated soil by a machine, removing construction waste and sundries through screening equipment, transferring the metal severely contaminated soil into a remediation reaction tank, adding a reducing agent A according to a ratio to remediate the upper-layer metal severely contaminated soil, applying a reducing agent B on the surface of the metal mildly contaminated soil, uniformly mixing the contaminated soil 20-25cm below the surface layer of the contaminated soil with the reducing agent B through plowing,and carrying out reacting for 8-20 days; and periodically detecting the concentration change of metal pollutants until the detected concentration is lower than a restoration target concentration. Thelayering remediation method for the heavy metal contaminated soil is good in remediation effect, and cost is greatly saved.

The embodiment of the invention discloses a monitoring video target concentration expression method and system in a three-dimensional geographic scene model, and relates to the technical field of visual fusion, and the method comprises the steps: reading a monitoring video for a period of time, obtaining image coordinates and geographic coordinates of a homonymous point pair, and establishing a mapping relation between a video image and a three-dimensional geographic space; detecting and processing the video target to obtain a video target subgraph and an image space position in the image; reordering the playing time of the video targets; and finally, dynamically mapping the reordered video target subgraphs into a geographic scene model according to the mapping relationship to realize video target concentration expression. The mapping relation between the video target and the geographic scene is established, the expression duration of the video target is compressed, the expression efficiency of the video moving target in the three-dimensional environment is improved, the fusion expression effect of the monitoring video in the geographic scene is enhanced, and great convenience is provided for integrated rapid retrieval and efficient understanding of video geographic scene information.