42results about "Gas dispersion analysis" patented technology

The application provides a method, an apparatus and a device for evaluating a dynamic diffusion of natural hydrogen in rock pores. The method includes: performing, at a target pressure and a target temperature, a simulation calculation of a natural hydrogen adsorption based on a pre-constructed pore model of a rock to be evaluated, and determining an average number of hydrogen molecules adsorbed in the rock pores when the natural hydrogen is saturated at the target pressure and the target temperature; determining a natural hydrogen content, based on lithologic parameters, the average number of hydrogen molecules, the target pressure and the target temperature; adding one or more preset gases to the pre-constructed pore model, determining a loss content of the natural hydrogen, and determining a diffusion coefficient of the natural hydrogen; determining a diffusion evaluation parameter, based on the natural hydrogen content, the loss content and the diffusion coefficient.

The invention relates to a method for particle detection in liquid medium, wherein an excitation light is applied to the liquid medium, the excitation liquid generating a respective bubble around one or more particles. An ultrasonic wave is used in order to expand the size of the bubbles. The bubbles are then detected. The invention relates further to a corresponding apparatus.

The present invention relates to a method for measuring a remaining amount of a liquid within a liquid storage container, the method including: discharging the liquid within the liquid storage container to the outside through a suction tube inserted into the liquid storage container; observing a size of a bubble or the number of bubbles contained in the liquid passing through the light transmitting part through a vision device that emits light toward the light transmitting part of the suction tube; and estimating the remaining amount of liquid based on the size and number of observed bubbles. Furthermore, the method may further include estimating the remaining amount using an ultrasonic carrier wave, wherein the estimating of the remaining amount using the ultrasonic carrier wave may include: oscillating ultrasonic waves from an ultrasonic generator to the inside of the liquid storage container; receiving the ultrasonic waves returned after the oscillation to analyze a waveform of the ultrasonic waves; and comparing the waveform of the ultrasonic waves to previously provided reference data to estimate the remaining amount of liquid.

The present disclosure provides apparatuses, systems, and methods for performing particle analysis through flow cytometry at comparatively high event rates and for gathering high resolution images of particles.

A computer-implemented method for characterizing a heterogeneous material comprising dispersed components, particularly particulate components, dispersed within a continuous phase of a condensate comprises the steps of: a) providing or selecting a sample of the heterogeneous material to be analyzed; b) acquiring at least one digital image of the sample by a camera of a computing device, particularly a mobile computing device, or by a camera connected to a computing device, particularly a mobile device, and / or by reading into the computing device at least one digital image previously recorded by a stand-alone camera; and c) determining the following characteristics: size parameters, particularly granularity parameters, shape parameters, and the like, determined by image analysis in the at least one digital image. performing image analysis, in particular image particle analysis, of at least one digital image to extract one or more of the following characteristics: particle shape parameters, in particular particle distribution, orientation parameters, in particular particle orientation parameters, surface parameters, in particular particle surface parameters, roughness parameters, in particular particle roughness parameters, packing density, uneven distribution parameters, color, and / or area fraction of components, in particular particulate components; and / or area fraction of continuous phases identified by image analysis in the at least one digital image; d) making one or more of the extracted characteristics in step c) available via a user interface, via a machine interface, and / or on a data storage medium.

A device comprising a gel-coupled force sensor for detecting bubbles and / or blockages in fluids using light sources and / or ultrasonic transducers is provided. The devices may include a housing having a gel-coupled force sensor, wherein the gel-coupled force sensor comprises a substrate, at least one force sensing element, at least one application-specific integrated circuit (ASIC), a cover for the at least one force sensing element and the at least one ASIC, a gel for covering the force sensing element, a mesh layer proximate to the top of the gel, a barrier layer proximate to the mesh layer, and a membrane layer proximate to the barrier layer protruding at least a distance past an edge of the cover. The gel-coupled force sensor may surround a fluid flow tube. The housing may comprise a first light source and a second light source and / or an ultrasonic transducer.

The invention relates to a system (1) for producing bubbles (2) and / or drops (32), wherein the system (1) comprises a production device (3) for the bubbles (2) and / or drops (32) which has a nozzle (4) and a monitoring device (5) for monitoring a production operation of the production device (3).In order to produce bubbles (2) and / or drops (32) with a desired defined buoyancy neutrality and consistency, and to be able to selectively adjust the properties of the bubbles (2) and / or drops (32) during production, it is proposed that the monitoring device (5) includes a sound transducer (6) which is configured to generate signals depending on sound waves (7) produced by the production of the bubbles (2) and / or drops (32), wherein the monitoring device (5) includes an evaluation device (8) which is configured to evaluate the signals generated by the sound transducer (6) to determine a characteristic property of the bubbles (2) and / or drops (32) produced by the production device (3) and / or to determine a characteristic parameter of the production.

The present disclosure describes an apparatus (612), a method (200), a system (600), and a computer program product (642) for detecting bubbles in an image of a sample in a well of a well plate. In an exemplary embodiment, a computer-implemented method, system, and computer program product includes receiving, by a computer system (600), at least one image (210) of at least one well of a well plate containing a liquid sample; performing, by the computer system (600), a set of logical operations (212) of cropping the image to include the hole of interest; and performing, by the computer system (600), a set of logical operations of processing the cropped image by the trained convolutional neural network, thereby obtaining a probability (214) that the image depicts at least one bubble.

A method for measuring a remaining amount of a liquid within a liquid storage container includes: discharging the liquid within the liquid storage container to outside through a suction tube, observing a size or a number of bubbles contained in the liquid passing through a light transmitting part; and estimating the remaining amount of liquid based on the size and number of observed bubbles. Furthermore, the method may further include estimating the remaining amount using an ultrasonic carrier wave, wherein the estimating of the remaining amount using the ultrasonic carrier wave may include: oscillating ultrasonic waves from an ultrasonic generator to the inside of the liquid storage container; receiving the ultrasonic waves returned after the oscillation to analyze a waveform of the ultrasonic waves; and comparing the waveform of the ultrasonic waves to previously provided reference data to estimate the remaining amount of liquid.

To detect bubbles formed in a medical procedure.SOLUTION: A system for visualizing one or more bubbles formed by a catheter includes a fluid container, a pulse generator, a schlieren imaging assembly, and a processor. The fluid container is configured to (i) contain a fluid, and (ii) receive, in the fluid, the catheter having one or more electrodes. The pulse generator is configured to apply one or more pulses to at least one of the electrodes. The schlieren imaging assembly is configured to acquire schlieren images of the bubbles occurring in the fluid when applying the one or more pulses, and the processor is configured to visualize the bubbles using the schlieren images.SELECTED DRAWING: Figure 1

The present invention relates to a method for measuring a remaining amount of a liquid within a liquid storage container, the method including: discharging the liquid within the liquid storage container to the outside through a suction tube inserted into the liquid storage container; observing a size of a bubble or the number of bubbles contained in the liquid passing through the light transmitting part through a vision device that emits light toward the light transmitting part of the suction tube; and estimating the remaining amount of liquid based on the size and number of observed bubbles. Furthermore, the method may further include estimating the remaining amount using an ultrasonic carrier wave, wherein the estimating of the remaining amount using the ultrasonic carrier wave may include: oscillating ultrasonic waves from an ultrasonic generator to the inside of the liquid storage container; receiving the ultrasonic waves returned after the oscillation to analyze a waveform of the ultrasonic waves; and comparing the waveform of the ultrasonic waves to previously provided reference data to estimate the remaining amount of liquid.

A bubble forming device (500) according to an embodiment, a bubble growing nozzle (100) has a tip portion (110) to be disposed in a liquid (LQ) to grow a bubble (BS) at the tip portion (110). A large-bubble holding member (300) holds a large bubble (BL) at a position facing the tip portion (110) of the bubble growing nozzle (100) in the liquid (LQ), the large bubble (BL) being larger than the bubble (BS). By an attraction force (AF) due to a hydrophobic interaction between the bubble (BS) at the tip portion (110) of the bubble growing nozzle (100) and the large bubble (BL) held by the large-bubble holding member (300), the bubble (BS) is detached from the tip portion (110) of the bubble growing nozzle (100) and the detached bubble BS is released into the liquid (LQ).

There is described a method for detecting a bubble (150), in particular a gas bubble, in an analytical device (10), the method comprising: i) detecting in a fluid path an electromagnetic signal (110) in response to a provided flow / pressure signal (120); and ii) determining the presence of the bubble (150) in the fluid path based on the detected electromagnetic signal (110).

The invention relates to an apparatus for detecting and / or analyzing particles which comprises a sample chamber (2), within which the particles are to be detected, and a light source (3) emitting light into the sample chamber. According to the invention, the apparatus (1) comprises an imaging system (4) configured for capturing an imaging region (5) provided for imaging light from the light source (3) that is deflected by the particles, and a device (6) for evaluating a recording of the imaging region (5) created by means of the imaging system (4). The sample chamber (2) is expediently formed within a container (7), which preferably contains a medium (8), in particular a liquid. In one embodiment of the invention, the imaging region (5) is formed by a wall (9) of the container (7), the wall preferably being at least partially light-transmissive, preferably transparent or translucent. The invention furthermore relates to a method and a computer program product for detecting and / or analyzing particles.

The application provides a method, an apparatus and a device for evaluating a dynamic diffusion of natural hydrogen in rock pores. The method includes: performing, at a target pressure and a target temperature, a simulation calculation of a natural hydrogen adsorption based on a pre-constructed pore model of a rock to be evaluated, and determining an average number of hydrogen molecules adsorbed in the rock pores when the natural hydrogen is saturated at the target pressure and the target temperature; determining a natural hydrogen content, based on lithologic parameters, the average number of hydrogen molecules, the target pressure and the target temperature; adding one or more preset gases to the pre-constructed pore model, determining a loss content of the natural hydrogen, and determining a diffusion coefficient of the natural hydrogen; determining a diffusion evaluation parameter, based on the natural hydrogen content, the loss content and the diffusion coefficient.

A measuring method and a measuring system of a microbubble dispersion liquid for measuring characteristics of the microbubble dispersion liquid while distinguishing between fine particles and differentiating them into microbubbles and solid particles is disclosed. A measuring system measures characteristics of a microbubble dispersion liquid under test, and the system includes a microcapillary holding the liquid under test, a laser device irradiating the liquid under test inside the microcapillary with laser light, a magnetic device that applies a time-varying magnetic field to the liquid under test within the irradiation area with laser light, a digital microscope detecting scattered light generated from fine particles contained in the liquid under test by irradiation with laser light, and a measurement device that measures characteristics of the test liquid by distinguishing between the fine particles and differentiating them into microbubbles and solid particles based on the brightness of scattered light detected by the microscope.

The present invention relates to a method for determining the median radius R0 of a collection of bubbles contained in a foamed liquid medium suitable for curing and, after curing, for forming a solid construction material or a solid polymer foam. The method comprises the steps of transporting the foamed medium into a cavity, emitting an ultrasonic wave pulse towards the cavity, detecting the pulse, measuring a component selected from an amplitude of the detected pulse and a phase of the pulse, and then determining the median radius R0 of the bubbles in the foamed medium within the cavity from the determined component. Figure for the abstract: Fig. 1

The liquid chemical detection device of the present application includes: a base portion formed with an inlet for inflow of a liquid chemical; a flow passage portion including: a first region portion disposed adjacent to the inlet of the base portion, and in which the liquid chemical inflowing from the inlet moves at a changed fluid velocity; and a second region portion in series communication with the first region portion, and in which the liquid chemical discharged from the first region portion moves; a sensing portion including: a first sensing member that senses a first signal as an electrical signal of the first region portion; and a second sensing member that senses a second signal as an electrical signal of the second region portion; and a discriminating portion that receives the signals from the sensing portion, judges that a particle and a bubble are sensed when the electric currents of the first signal and the second signal change with respect to a reference value, and discriminates the particle and the bubble according to the electric current difference of the first signal and the second signal or the time difference of the electric current change.

Device (10) for measuring the particle characteristics of a particle (12) located in a measuring volume (14) of the device (10). The device (10) has a light source (16) for generating a light beam (18) that passes through the measuring volume (14) and whose polarization in a cross-sectional plane (30) can be described by a spatially dependent Stokes vector that has a spatially dependent S3 Stokes parameter. Furthermore, the device (10) has a detector unit (34) configured to measure an S3 Stokes parameter of the light beam (18) reflected and / or scattered by the particle (12) and to output a measurement signal as a function of the measured S3 Stokes parameter, and an evaluation unit (82) configured to determine the particle characteristics as a function of the measurement signal from the detector unit (34).

To provide a method of detecting bubbles in a fluid path, in particular one in an analytical device (e.g., HPLC).SOLUTION: A method of detecting bubbles, in particular gas bubbles, in an analytical device is provided, the method comprising: i) detecting an electromagnetic signal 110 responding to a provided flow / pressure signal in a fluid path, and ii) determining the presence of bubbles in the fluid path based on the detected electromagnetic signal 110. Iii) The electromagnetic signal responding to the flow / pressure signal is an output of a detector, such as a fluorescence detector, of an analytic device.SELECTED DRAWING: Figure 2

The present disclosure describes an apparatus (612), method (200), system (600) and computer program product (642) of detecting bubbles in images of a sample in wells of a well plate. In an exemplary embodiment, In an exemplary embodiment, the computer implemented method, the system, and the computer program product include receiving, by a computer system (600), at least one image of at least one well of a well plate containing a liquid sample (210), executing, by the computer system (600), a set of logical operations cropping the image to include a well of interest (212), and executing, by the computer system (600), a set of logical operations processing, by a trained convolutional neural network, the cropped image, resulting in a probability that the image depicts at least one bubble (214).

The present disclosure provides apparatuses, systems, and methods for performing particle analysis through flow cytometry at comparatively high event rates and for gathering high resolution images of particles.

A device comprising a gel-coupled force sensor for detecting bubbles and / or blockages in fluids using light sources and / or ultrasonic transducers is provided. The devices may include a housing having a gel-coupled force sensor, wherein the gel-coupled force sensor comprises a substrate, at least one force sensing element, at least one application-specific integrated circuit (ASIC), a cover for the at least one force sensing element and the at least one ASIC, a gel for covering the force sensing element, a mesh layer proximate to the top of the gel, a barrier layer proximate to the mesh layer, and a membrane layer proximate to the barrier layer protruding at least a distance past an edge of the cover. The gel-coupled force sensor may surround a fluid flow tube. The housing may comprise a first light source and a second light source and / or an ultrasonic transducer.

Method for detecting a bubble, in particular a gas bubble, in an analytical device 10, the method comprising: i) detecting in a fluid path an electromagnetic signal in response to a provided flow / pressure signal; and ii) determining the presence of the bubble in the fluid path based on the detected electromagnetic signal. A device comprising: a pressurizing device 20, in particular a pump or metering device, configured to provide a pressure signal to a fluid path; an electromagnetic signal detector 50 configured to detect an electromagnetic signal in response to a flow / pressure signal; and a control device 70 configured to determine the presence of a bubble in the fluid path based upon the detected electromagnetic signal.

A device for particle sensing is disclosed. The device includes a sensor including a bulk acoustic wave resonator having a resonant frequency, an acoustic mirror arranged to support the resonator, and a heater in thermal communication with the resonator such that a resonator temperature is based on a heater temperature. The device also includes circuitry connected to the sensor. The circuitry comprises a driver configured to drive the heater with a driver signal having a constant periodic cycle, and an oscillator configured to generate an output signal indicative of the resonant frequency. The resonant frequency is modulated by the resonator temperature.

A device (10) for measuring the particle characteristics of a particle (12) located in a measuring volume (14) of the device (10), comprising: a light source (16) for generating a first light beam (18) and a second light beam (20), each passing through the measuring volume (14); a detector device (69) configured to detect the first light beam (18) and the second light beam (20) reflected and / or scattered by the particle (12) and to output an intensity signal; and an evaluation unit (82) configured to determine the particle characteristics as a function of the intensity signal. The first light beam (18) and the second light beam (20) propagate within the measuring volume (14) along a beam axis (30, 32).The ray axis (30) of the first light ray (18) and the ray axis (32) of the second light ray (20) define between them a propagation angle (34) which is not equal to 0°.

Methods and systems for convolutional neural network-based, soft-sensor controller for microfluidics are described herein. In one aspect, a method can include: receiving image data of an output of a droplet generator; inputting the image data into a trained image classification model; determining, based on the image data and via the image classification model, a flow regime of the droplet generator, wherein the flow regime comprises one of: (a) a dripping regime, (b) a non-production regime, and (c) a jetting regime; and adjusting a parameter of the droplet generator when the flow regime comprises either (b) or (c).

Device for particle analysis of fluid mixtures containing a carrier fluid and particles entrained therein. A measurement zone acquisition section (7) receives the fluid mixture. An optical detection device (10, 11, 12, 13) with illumination device (10, 11) and digital camera (13) is directed at the measurement zone acquisition section. The digital camera (13) is coupled to an evaluation unit (14), which repeatedly evaluates individual frames extracted from the image signals in order to distinguish first image areas (20), in which particles are depicted, from second image areas (22), in which particle-free fluid is depicted. The evaluation unit determines envelopes (21) for each of the first image areas (20), which enclose the first image areas according to predefined criteria.The evaluation unit determines a coverage measure for the evaluated individual images, which is determined from the total areas of the envelope (21) and the area (7a) of the entire captured image area of ​​the measurement zone detection section (7).

In an analytical device, a bubble, in particular a gas bubble, is detected by detecting in a fluid path an electromagnetic signal in response to a provided flow / pressure signal, and determining the presence of the bubble in the fluid path based on the detected electromagnetic signal.

The present application provides an evaluation method and apparatus for dynamic diffusion of natural hydrogen in rock pores, and a device. The method comprises: performing hydrogen adsorption simulation calculation at a target pressure and a target temperature on the basis of a pre-constructed pore model of a rock to be evaluated, and determining the average number of hydrogen molecules adsorbed in pores when hydrogen reaches saturation at the target temperature and the target pressure; on the basis of lithological parameters of said rock, the average number of hydrogen molecules adsorbed in the pores at the target temperature and the target pressure, the target pressure, and the target temperature, determining the content of natural hydrogen in the rock pores; adding a preset gas into the pore model, and when the pore model is saturated at the target pressure and the target temperature, determining the loss content of natural hydrogen, and determining a diffusion coefficient of natural hydrogen; and determining a diffusion evaluation parameter on the basis of the content of natural hydrogen in the rock pores, the loss content of natural hydrogen, and the diffusion coefficient of natural hydrogen. The present application can improve the accuracy of evaluation for diffusion of natural hydrogen.