ULTRASONIC IMAGING SYSTEM AND ULTRASONIC IMAGING METHOD

Disclosed are an ultrasonic imaging system and an ultrasonic imaging method, in which echo signals of ultrasonic waves of a region of interest are received, shear waves are propagated within the region of interest, the ultrasonic waves are used for detecting the shear waves; an elasticity result of the region of interest is calculated based on the echo signals of ultrasonic waves; a viscosity parameter of the region of interest is calculated based on the echo signals of ultrasonic waves; and the elasticity result is performed with quality control at least based on the viscosity parameter. The present disclosure provides a scheme of quality control prompt for the reliability of the elasticity result by means of tissue viscosity characteristics.

ULTRASOUND TRANSIENT ELASTICITY MEASUREMENT DEVICE AND METHOD

An ultrasound transient elasticity measurement device and a transient elasticity measurement method are provided. The device includes an ultrasound probe including a vibrator, a transmitting/receiving sequence controller, and a data processor. The method includes: transmitting a first ultrasound wave according to a first transmitting/receiving control sequence, and receiving an echo thereof; generating an ultrasound image according to the echo of the first ultrasound wave, and displaying the same; detecting a region of interest on the ultrasound image selected by a user; a vibrator driving the ultrasound probe to vibrate; transmitting a second ultrasound wave according to a second transmitting/receiving control sequence, and receiving an echo thereof, the second transmitting/receiving control sequence being determined according to the region of interest on the ultrasound image selected by the user; and calculating, according to the echo of the second ultrasound wave, the transient elasticity ...

METHOD AND APPARATUS FOR MANAGING MEMORY

A method and apparatus for managing memory are provided. The method for managing memory includes: while a virtual machine is running, receiving, by a virtual machine memory management module, a memory allocation request sent by a user process in the virtual machine; sending, by the virtual machine memory management module according to the memory allocation request sent by the user process, the memory allocation request to a virtual PCIe device in a virtual machine manager to enable the virtual PCIe device to request memory from a host memory management module; and acquiring, by the virtual machine memory management module via the virtual PCIe device, a memory space allocated by the host memory management module and configuring the memory space to the user process. The method for managing memory can improve the efficiency of memory utilization.

ELASTICITY IMAGING METHOD AND DEVICE, AND STORAGE MEDIUM

An elasticity imaging method, device, and storage medium are provided. The method includes: transmitting an ultrasound wave to a target tissue; receiving an ultrasound echo of the ultrasound wave returned from the target tissue; obtaining an interference characteristic information representing the degree of interference to the target tissue; and when the interference characteristic information does not meet a preset condition, stopping determining an elasticity image of the target tissue according to the ultrasound echo. 1. An elasticity imaging method , comprising:transmitting an ultrasound wave to a target tissue;receiving an ultrasound echo of the ultrasound wave returned from the target tissue;obtaining an interference characteristic information, wherein the interference characteristic information represents a degree of interference to the target tissue; andwhen the interference characteristic information does not meet a preset condition, stopping obtaining an elasticity image of the target tissue according to the ultrasound echo.2. The method of claim 1 , further comprising:when the interference characteristic information meets the preset condition, obtaining an elasticity image of the target tissue according to the ultrasound echo.3. The method of claim 1 , after obtaining the interference characteristic information claim 1 , further comprising:displaying the interference characteristic information.4. The method of claim 3 , wherein displaying the interference characteristic information comprises:generating an interference characteristic image according to the interference characteristic information; anddisplaying the interference characteristic image.5. The method of claim 3 , after displaying the interference characteristic information claim 3 , further comprising:receiving a first control instruction, wherein the first control instruction instructs to stop obtaining the elasticity image of the target tissue according to the ultrasound echo.6. The method of ...

ULTRASONIC IMAGING SYSTEM AND VISCOSITY QUALITY CONTROL METHOD

Disclosed are an ultrasonic imaging system and a viscosity quality control method, in which ultrasonic waves for detecting shear waves propagated in a region of interest are transmitted to the region of interest to obtain ultrasonic echo signals, a frequency dispersion distribution diagram is calculated based on the ultrasonic echo signals, a viscosity parameter is calculated based on the frequency dispersion distribution diagram, and the viscosity parameter is performed with quality control based on the frequency dispersion distribution diagram. The present disclosure provides a scheme of quality control on the viscosity parameter.

Method and System for Ultrasonic Fluid Spectral Doppler Imaging

A method and system for ultrasonic fluid spectral Doppler imaging are disclosed. The system comprises: a transmission circuit for transmitting an ultrasonic beam to a detection object; a receiving circuit and a beam synthesis module for receiving an echo of the ultrasonic beam and obtaining an ultrasonic echo signal; an image processing module for obtaining an ultrasonic fluid flow state image of a region of interest in the detection object according to the ultrasonic echo signal, identifying a sampling position in the region of interest, respectively obtaining a Doppler spectrogram corresponding to each sampling position according to the ultrasonic echo signal, and generating position displaying marks for characterizing the sampling positions; and a display for displaying the position displaying marks in the ultrasonic fluid flow state image, and displaying the obtained Doppler spectrogram. The system may simultaneously display spectra of multiple locations on a same time axis. 1. An ultrasonic flow spectral Doppler imaging method , comprising:transmitting an ultrasonic beam to an examination object;receiving echoes of the ultrasonic beam to obtain an ultrasonic echo signal;obtaining an ultrasonic flow state image of a region of interest in the examination object according to the ultrasonic echo signal;determining two or more sampling positions in the region of interest;obtaining two or more Doppler spectrums corresponding to the two or more sampling positions according to the ultrasonic echo signal;displaying position displaying marks on the ultrasonic flow state image, wherein one position displaying mark correspondingly marks one sampling position; anddisplaying the obtained two or more Doppler spectrums.2. The ultrasonic flow spectrum Doppler imaging method of claim 1 , further comprising:extracting pulse wave spectral parameters corresponding to two Doppler spectrums;evaluating a difference between the pulse wave spectral parameters; andoutputting the ...

PULSE OFFSET ULTRASONIC IMAGING

A diagnostic ultrasound image of a region of interest (ROI) of a body is formed by transmitting into the ROI at least a first and a second ultrasound pulse, in which the second pulse is phase-shifted relative to the first pulse by an amount other than 0 or 180 degrees. Discretized receive signals from the pulses are interleaved to form a resultant operating signal that is detected and beamformed as the operating signal.

ULTRASOUND ELASTICITY MEASURING DEVICES AND ELASTICITY COMPARATIVE MEASURING METHODS

An elasticity comparative measuring method includes: controlling an ultrasound probe to transmit a first ultrasound wave to a region of interest in a biological tissue when the biological tissue is deformed; receiving echoes of the first ultrasound wave to obtain a first echo signal; controlling the ultrasound probe to transmit a second ultrasound wave to the region of interest when the biological tissue is deformed; receiving echoes of the second ultrasound wave to obtain a second echo signal; obtaining a first elasticity result corresponding to a first cross section in the region of interest according to the first echo signal; obtaining a second elasticity result corresponding to a second cross section in the region of interest according to the second echo signal; outputting, via a display, the first elasticity result and the second elasticity result. 1. An elasticity comparative measuring method , comprising:controlling, via a processor, an ultrasound probe to transmit a first ultrasound wave to a region of interest in a biological tissue when the biological tissue is deformed;receiving, via the ultrasound probe, echoes of the first ultrasound wave to obtain a first echo signal;controlling, via the processor, the ultrasound probe to transmit a second ultrasound wave to the region of interest when the biological tissue is deformed;receiving, via the ultrasound probe, echoes of the second ultrasound wave to obtain a second echo signal;obtaining, via the processor, a first elasticity result corresponding to a first cross section in the region of interest according to the first echo signal;obtaining, via the processor, a second elasticity result corresponding to a second cross section in the region of interest according to the second echo signal, wherein the first cross section is different from the second cross section;outputting, via a display, the first elasticity result and the second elasticity result.2. The method of claim 1 , wherein outputting the first ...

ULTRASOUND ELASTOGRAPHY IMAGING SYSTEM AND METHOD

The present disclosure relates to an ultrasound elastography system and method. The system may include a transmitting/receiving unit which transmits ultrasound pulses to a target and receives ultrasound echoes from the target to obtain the ultrasound echo signals; an imaging unit which processes the ultrasound echo signals and displays the obtained image; and an analysis unit which detects a region of interest and a shell region selected by an operator in the image, calculate elasticity parameters in a reference region and the shell region respectively, and analyzes the elasticity parameters to obtain an analysis result.

SYSTEM AND METHOD FOR ULTRASOUND ELASTOGRAPHY AND METHOD FOR DYNAMICALLY PROCESSING FRAMES IN REAL TIME

Disclosed are a system and a method for ultrasound elastography and a method for dynamically processing frames in real time. The system includes an elasticity processing apparatus having an elasticity information detecting module for extracting elasticity information representing the elasticity of a target to be detected; a quality parameter calculating module for calculating at least a quality parameter reflecting quality of each elasticity image corresponding to the elasticity information; and a frame processing module for determining whether to output corresponding elasticity image based on the quality parameter of each elasticity image. When calculating a strain of consecutive images, the parameter reflecting the quality of each image is also computed, through which, the current elasticity image is determined whether to be displayed, thus avoiding the situation that colors of acquired successive elasticity images may vary greatly due to large difference existing in stress.

METHOD AND SYSTEM FOR ULTRASONIC FLUID SPECTRAL DOPPLER IMAGING

A method and system for ultrasonic fluid spectral Doppler imaging are disclosed. The system comprises: a transmission circuit for transmitting an ultrasonic beam to a detection object; a receiving circuit and a beam synthesis module for receiving an echo of the ultrasonic beam and obtaining an ultrasonic echo signal; an image processing module for obtaining an ultrasonic fluid flow state image of a region of interest in the detection object according to the ultrasonic echo signal, identifying a sampling position in the region of interest, respectively obtaining a Doppler spectrogram corresponding to each sampling position according to the ultrasonic echo signal, and generating position displaying marks for characterizing the sampling positions; and a display for displaying the position displaying marks in the ultrasonic fluid flow state image, and displaying the obtained Doppler spectrogram. The system may simultaneously display spectra of multiple locations on a same time axis.

ULTRASOUND IMAGING DEVICE AND METHOD FOR DETECTING PERISTALSIS OF ENDOMETRIUM

An ultrasonic imaging device and a method for detecting endometrial peristalsis. The method comprises: acquiring ultrasound echo data of the endometrium (1), and determining on said basis the peristaltic displacement or peristaltic speed of a point in the endometrium within a preset period of time (2); calculating peristalsis parameters of the endometrium according to the peristaltic displacement or the peristaltic speed of the point in the endometrium within the preset period of time, the peristalsis parameters being used to describe the moving state of endometrial peristalsis (3); and displaying the peristalsis parameters (4). Thus, peristalsis parameters are calculated automatically without relying on the subjective determination of an ultrasound doctor, which improves the accuracy and efficiency of the detection of peristalsis.

MEASURING METHOD FOR PERISTALSIS INFORMATION BASED ON ULTRASONIC SCANNING, MEASURING APPARATUS THEREOF AND MEDIUM

A measuring method for peristalsis information based on ultrasonic scanning, includes: obtaining a second ultrasonic echo signal by performing a second ultrasonic scan on a field of view comprising a junction band, the second ultrasonic scan being different from a first ultrasonic scan as a conventional scan mode; recognizing a portion of interest of the junction band and determining motion information about the portion of interest of the junction band according to the second ultrasonic echo signal or a second ultrasonic image generated therefrom; and determining peristalsis information about the portion of interest of the junction band according to the motion information about the portion of interest of the junction band.

ELASTOGRAPHY METHOD, SYSTEM AND STORAGE MEDIUM

Disclosed are an elasticity imaging method, a system and a storage medium. The method comprises: controlling an ultrasonic probe to transmit first ultrasound waves to a target object to generate shear waves propagating in a region of interest of the target object; controlling the ultrasonic probe to transmit second ultrasonic waves to the ROI to track the shear waves propagating in the ROI and receive echoes of the second ultrasonic waves, and acquiring second ultrasonic echo data based on the echoes of the second ultrasonic waves; generating a shear wave elasticity image and a strain elasticity image based on the second ultrasonic echo data; and displaying the shear wave elasticity image and the strain elasticity image. As such, the strain elasticity data is calculated according to the shear wave detection data, to enable the combination of shear wave elasticity imaging and strain elasticity imaging.

SHEAR WAVE ELASTICITY IMAGING METHOD AND ULTRASONIC IMAGING DEVICE

Shear wave elasticity imaging methods and ultrasound imaging devices are provided. The method may include: generating a shear wave in a target area of an object being examined; transmitting a first ultrasonic wave to the target area and receiving first echo data; determining an elasticity parameter of the target area according to the first echo data; obtaining a motion parameter of the target area; and displaying the elasticity parameter and the motion parameter.

VISCOELASTICITY MEASUREMENT METHOD AND ULTRASONIC IMAGING SYSTEM

A viscoelasticity measurement method and an ultrasonic imaging system. The method comprises: generating a shear wave that propagates in a target area of a measured object (S210); emitting, to the target area, an ultrasonic wave that tacks the shear wave, and receiving an ultrasonic echo returned from the target area, so as to obtain ultrasonic echo data (S220); obtaining tissue motion information in a shear wave propagation process according to the ultrasonic echo data (S230); extracting, from the tissue motion information, tissue motion target information corresponding to shear waves of at least two different frequencies (S240); and outputting the tissue motion target information of the shear waves of the at least two different frequencies, wherein the tissue motion target information is used for reflecting a viscosity feature of the target area (S250). Therefore, a viscosity feature of a tissue is reflected by means of tissue motion target information of shear waves of at least two different frequencies.

METHOD, APPARATUS AND SYSTEM FOR IMAGING IN ULTRASONIC SCANNING

A method comprises: generating a shear wave in a target tissue; selecting an ultrasound transducer group in an ultrasound probe, and determining a focus position and a transmitting aperture corresponding to the ultrasound transducer group, such that a sound field boundary range formed by the ultrasound transducer group completely covers a region of interest in the target tissue; controlling the array elements to transmit ultrasound waves according to the corresponding relative time delays, so as to cause a transmitting focusing effect; receiving ultrasound echoes returned from the region of interest, obtaining echo information of different positions in the region of interest, and obtaining, according to the echo information, shear wave information corresponding to the region of interest. 1. An ultrasound imaging method , comprising:generating a shear wave in a target tissue which propagates in a region of interest in a shear wave propagation direction;selecting at least one ultrasound transducer group in an ultrasound probe and determining a focus position and a transmitting aperture of the ultrasound transducer group according to a depth and width of the region of interest in the target tissue, such that a sound field generated by the at least one ultrasound transducer group completely covers the region of interest in the target tissue;controlling the transducers in the ultrasound transducer group to transmit ultrasound waves to the target tissue which are focused at the focus position;receiving ultrasound echoes from the region of interest to obtain echo information in the region of interest; andobtaining a shear wave information corresponding to the region of interest according to the echo information.2. (canceled)3. The method of claim 1 , wherein receiving the ultrasound echoes from the region of interest comprises: receiving the ultrasound echoes from a lateral range in the region of interest claim 1 , wherein the lateral range is greater than or equal to a ...

ANTENNA UNIT, ANTENNA ASSEMBLY, MULTI-ANTENNA ASSEMBLY, AND WIRELESS CONNECTION DEVICE

The present invention relates to an antenna unit, including a dielectric substrate and an antenna conductor attached to the dielectric substrate, where a maximum gain direction of the antenna unit is consistent with an extension direction of a surface of the dielectric substrate. The present invention also relates to an antenna assembly with the antenna unit, a multi-antenna assembly, and a wireless connection device with the antenna unit, the antenna assembly or the multi-antenna assembly. The antenna unit of the present invention has high directivity, and has advantages of broad bands, high gains, and easy commissioning, so that both the multi-antenna assembly and the wireless connection device have high performance. 1. An antenna unit , comprising a dielectric substrate and an antenna conductor attached to the dielectric substrate , wherein a maximum gain direction of the antenna unit is consistent with an extension direction of a surface of the dielectric substrate.2. The antenna unit according to claim 1 , wherein the antenna conductor comprises a main element used for connecting to a feeder claim 1 , and a director used to enhance a radio wave on a radio side claim 1 , wherein both the main element and the director are conductor wires attached to the dielectric substrate claim 1 , wherein the conductor wire is a metal wire claim 1 , wherein there are multiple directors claim 1 , which constitute a group of conductor wires that are parallel to each other claim 1 , wherein centers of the multiple directors are on a same straight line claim 1 , and the straight line is vertical to the directors.3. The antenna unit according to claim 2 , wherein the director is a radial structure that is formed of a conductor material and disposed along a propagation direction of an electromagnetic wave claim 2 , wherein the dielectric substrate comprises two surfaces claim 2 , and at least one director is disposed on another surface that is different from a surface on which the ...

ULTRASOUND ELASTOGRAPHY METHOD AND SYSTEM

An ultrasound elastography method and system are provided. The method may include: exciting an ultrasound probe to transmit ultrasound waves to a body tissue under examination and receive ultrasound echoes to obtain a first ultrasound echo signal, wherein the ultrasound probe comprises an ultrasound transducer provided with multiple array elements; obtaining an ultrasound image of a body tissue under examination; displaying the ultrasound image; generating a shear waves within the body tissue under examination; exciting array elements of a ultrasound transducer to transmit the ultrasound waves to form an ultrasound beam covering a first area within the body tissue under examination; receiving the ultrasound echoes from the first area to obtain the second ultrasound echo signal; and obtaining the propagation path of the shear waves within the first area according to the second ultrasound echo signal. 1. An ultrasound elastography method , comprising:exciting an ultrasound probe to transmit ultrasound waves to a body tissue under examination and receive ultrasound echoes to obtain a first ultrasound echo signal, wherein the ultrasound probe comprises an ultrasound transducer provided with multiple array elements;obtaining an ultrasound image of the body tissue under examination according to the first ultrasound echo signal;displaying the ultrasound image;generating a shear waves in the body tissue under examination;exciting at least part of the array elements of the ultrasound transducer to transmit ultrasound waves and control an excitation time of each array element to be excited such that the ultrasound waves transmitted by the excited array elements form an ultrasound beam covering a first area in the body tissue under examination, wherein the shear wave propagates at least partially in the first area;receiving ultrasound echoes from the first area to obtain a second ultrasound echo signal; andobtaining a propagation path of the shear wave in the first area ...

ULTRASOUND IMAGING METHOD AND ULTRASOUND IMAGING DEVICE

Ultrasound imaging methods and ultrasound imaging devices are provided, in which an inter-frame processing may be performed on elasticity echo data or the elasticity images to obtain new elasticity images, thereby improving the display frame rate of the elasticity images. The elasticity echo data comprises an ultrasound echo of an ultrasound wave returned from an object, and the elasticity images comprises at least two frames and obtained according to the elasticity echo data.

METHOD AND SYSTEM FOR ULTRASONIC FLUID SPECTRAL DOPPLER IMAGING

A method and system for ultrasonic fluid spectral Doppler imaging are disclosed. The system comprises: a transmission circuit for transmitting an ultrasonic beam to a detection object; a receiving circuit and a beam synthesis module for receiving an echo of the ultrasonic beam and obtaining an ultrasonic echo signal; an image processing module for obtaining an ultrasonic fluid flow state image of a region of interest in the detection object according to the ultrasonic echo signal, identifying a sampling position in the region of interest, respectively obtaining a Doppler spectrogram corresponding to each sampling position according to the ultrasonic echo signal, and generating position displaying marks for characterizing the sampling positions; and a display for displaying the position displaying marks in the ultrasonic fluid flow state image, and displaying the obtained Doppler spectrogram. The system may simultaneously display spectra of multiple locations on a same time axis. 1. An ultrasonic flow spectral Doppler imaging method , comprising:transmitting an ultrasonic beam to an examination object;receiving echoes of the ultrasonic beam to obtain an ultrasonic echo signal;obtaining an ultrasonic image of a region of interest in the examination object according to the ultrasonic echo signal;determining a first sampling position in the region of interest and obtaining a first Doppler spectrum corresponding to the first sampling position according to the ultrasonic echo signal;determining a second sampling position in the region of interest and obtaining a second Doppler spectrum corresponding to the second sampling position according to the ultrasonic echo signal;evaluating a difference between the first Doppler spectrum and the second Doppler spectrum; andoutputting the difference.2. The ultrasonic flow spectral Doppler imaging method of claim 1 , further comprising simultaneously displaying the first Doppler spectrum and the second Doppler spectrum.3. The ...

PULSE OFFSET ULTRASONIC IMAGING

A diagnostic ultrasound image of a region of interest (ROI) of a body is formed by transmitting into the ROI at least a first and a second ultrasound pulse, in which the second pulse is phase-shifted relative to the first pulse by an amount other than 0 or a multiple of 180 degrees. Discretized receive signals from the pulses are interleaved to form a resultant operating signal that is detected and beamformed as the operating signal. 1. A method for creating an image of a region of interest of a body comprising:transmitting a first ultrasonic pulse into the region of interest;sensing first receive signals corresponding to ultrasonic energy from the first ultrasonic pulse reflected from within the region of interest;transmitting a second ultrasonic pulse into the region of interest;sensing second receive signals corresponding to ultrasonic energy from the second ultrasonic pulse reflected from within the region of interest;interleaving discretized representations of the first and second receive signals to form a resultant operating signal; andcreating the image of the region of interest as a function of the resultant operating signal;wherein the second ultrasonic pulse is phase-shifted relative to the first ultrasonic pulse by an amount other than zero degrees or a multiple of 180 degrees.2. The method of claim 1 , further comprising:extracting a nonlinear component from the operating signal; andbeamforming the nonlinear component to generate a scan line, whereby a series of scan lines form the image.3. The method of claim 1 , in which K receive signals claim 1 , corresponding to echo signals from respective claim 1 , relatively phase-offset transmitted ultrasonic pulses claim 1 , are discretized and interleaved to form the resultant operating signal.4. The method of claim 3 , in which K is greater than two.5. The method of claim 3 , in which:K is two or greater;{'sub': 's', 'the phase shift is chosen such that the second ultrasonic pulse is transmitted with a time ...

ULTRASONIC IMAGING APPARATUS AND METHOD, AND ULTRASONIC ELASTIC TESTING APPARATUS AND METHOD

A method and apparatus for generating a shear wave. The method comprises: transducers transmit ultrasound waves to a region of interest once; the ultrasound waves focus on at least two focal points in an acoustic field; and with shear wave sources corresponding to the at least two focal points that propagates in a direction perpendicular to a transmission direction of the ultrasound waves. A method and apparatus for detecting an ultrasound elasticity of a shear wave discloses, in a same ultrasound transmission, multiple focal points are gathered in an acoustic field by the ultrasound waves, under the joint effect of the multiple focal points, and a shear wave zone propagated in a direction perpendicular to a direction in which the ultrasound waves is transmitted is formed, so as to expand a propagation range of the shear wave in a tissue, so that detecting ultrasound waves can perform elasticity detection on the tissue in a large range. 1. (canceled)2. A method for detecting an elasticity with a shear wave , comprising:transmitting ultrasound waves to a region of interest through transducers disposed in an ultrasound probe and configured to transmit ultrasound waves, wherein the ultrasound waves are focused on at least two focal points in an acoustic field and drive a tissue to form a shear wave zone with shear wave sources corresponding to the at least two focal points, wherein the shear wave zone is propagated in a direction perpendicular to a transmission direction of the ultrasound waves;continuously transmitting detection ultrasound waves for a predetermined duration to a propagation path of the shear wave zone through transducers configured to transmit detection ultrasound waves, and receiving echo signals of the detection ultrasound waves; andcalculating elastic characteristics value based on the echo signals.3. The method of claim 2 , wherein the transducers are divided into at least two groups claim 2 , wherein ultrasound waves transmitted by each group are ...

SHEAR WAVE ELASTICITY MEASUREMENT METHOD AND SHEAR WAVE ELASTICITY IMAGING SYSTEM

A shear wave elasticity measurement method and a shear wave elasticity imaging system are disclosed. For each pair of corresponding shear waves, an echo signal within a continuous period of time can be obtained only at a third position, so that an elasticity parameter corresponding to the target area can be obtained according to the echo signal within the continuous period of time. Not only the position required for obtaining an echo signal is few, but also the total data volume required for obtaining the echo signal is few. The calculation method is also easy, which significantly reduces the system performance requirement. 1. A shear wave elasticity measurement method , comprising:generating a first shear wave at a first position on a boundary of a target area;generating a second shear wave at a second position on the boundary of the target area, wherein the second position is located on a propagation path of the first shear wave;transmitting an ultrasound wave to a third position to detect the first shear wave and the second shear wave, and receiving echoes of the ultrasound wave to obtain an echo signal, wherein the third position is located outside the target area and the first shear wave propagates to the third position through the second position;obtaining a first time when the first shear wave reaches the third position and a second time when the second shear wave reaches the third position according to the echo signal; andcalculating an elasticity parameter of the target area according to the first time when the first shear wave reaches the third position, the second time when the second shear wave reaches the third position, and a distance between the first position and the second position.2. The shear wave elasticity measurement method of claim 1 , wherein the second position is different from the first position.3. The shear wave elasticity measurement method of claim 2 , wherein the distance between the first position and the second position is maximum on ...

ULTRASOUND IMAGING METHODS

Ultrasound imaging methods are provided. The method includes: determining a region of interest in a target tissue; determining at least one ultrasound transducer group in an ultrasound probe and a focus position according to the region of interest in the target tissue; controlling, according to the determined focus position and the at least one ultrasound transducer group, transducers in the at least one ultrasound transducer group to transmit, to the target tissue, ultrasound waves that arrive at the corresponding focus point simultaneously, to form a sound field that completely covers the region of interest in the target tissue; and receiving ultrasound echoes of the ultrasound waves from the region of interest to obtain echo information in the region of interest.

ULTRASOUND IMAGING METHOD AND ULTRASOUND IMAGING DEVICE

Ultrasound imaging methods and ultrasound imaging devices are provided, in which an inter-frame processing may be performed on elasticity echo data or the elasticity images to obtain new elasticity images, thereby improving the display frame rate of the elasticity images. The elasticity echo data comprises an ultrasound echo of an ultrasound wave returned from an object, and the elasticity images comprises at least two frames and obtained according to the elasticity echo data.

ULTRASOUND ELASTICITY MEASUREMENT DEVICE AND METHOD

An ultrasound elasticity measurement device includes an ultrasound probe. The ultrasound probe includes a vibrator and a transducer. The ultrasound elasticity measurement device further includes a vibration controller, a transmission/receiving controller and a data processor. When simultaneously performing the strain detection and the vibration elasticity detection, the vibration controller generates a vibration control sequence and transmits the same to the vibrator. The ultrasound probe vibrates when driven by the vibrator, and transmits ultrasound waves to the biological tissue and receives the ultrasound echoes, so as to obtain the ultrasound echo data for strain detection and the ultrasound echo data for vibration elasticity detection. The data processor calculates the strain elasticity result according to the ultrasound echo data for strain detection calculates the vibration elasticity result according to the ultrasound echo data for vibration elasticity detection, thereby realizing ...

ULTRASOUND-BASED LIVER EXAMINATION DEVICE, ULTRASOUND APPARATUS, AND ULTRASOUND IMAGING METHOD

An ultrasound apparatus, ultrasound-based liver examination device and ultrasound imaging method are provided. The ultrasound apparatus may include: an ultrasound probe, a transmission and receiving controller, an ultrasound echo signal processor, a data processor and a display device. The ultrasound echo signal processor may perform different processes on an ultrasound echo signal according to usage of the ultrasound echo signal. A gain compensation for enhancing image quality may be performed on a first ultrasound echo signal to be used for obtaining the ultrasound image, and a gain compensation for preserving original information may be performed on a second ultrasound echo signal to be used for calculating a quantitative parameter of a liver. The data processor may generate the ultrasound image according to the processed first ultrasound echo signal, calculate the quantitative parameter according to the processed second ultrasound echo signal, and output the ultrasound image and the quantitative parameter.

ULTRASOUND ELASTOGRAPHY IMAGING SYSTEM AND METHOD

The present disclosure relates to an ultrasound elastography system and method. The system may include a transmitting/receiving unit which transmits ultrasound pulses to a target and receives ultrasound echoes from the target to obtain the ultrasound echo signals; an imaging unit which processes the ultrasound echo signals and displays the obtained image; and an analysis unit which detects a region of interest and a shell region selected by an operator in the image, calculate elasticity parameters in a reference region and the shell region respectively, and analyzes the elasticity parameters to obtain an analysis result. 1. An ultrasound elastography system , comprising:an ultrasound probe;a transmitting/receiving unit which excites the ultrasound probe to transmit ultrasound pulses to a target to be inspected, and receive ultrasound echoes from the target through the ultrasound probe to obtain ultrasound echo signals;an imaging unit which processes the received ultrasound echo signals to obtain an ultrasound image of the target, and display the ultrasound image obtained; andan analysis unit which detects a region of interest and a shell region in the ultrasound image and calculates elasticity parameters in a reference region and the shell region to obtain an analysis result;wherein the shell region is a region obtained by subtracting the region of interest from an expanded region of the region of interest or a region obtained by subtracting a narrowed region of the region of interest from the region of interest; and wherein the reference region is the region of interest, a region for reference selected by the operator in the ultrasound image or a region preset by the system.2. The system of claim 1 , wherein the imaging unit comprises:an elasticity parameter calculation unit which processes the received ultrasound echo signals to obtain elasticity parameters representing elasticity of the target and generates an elastic image of the target based on the elasticity ...

MAGNETIZED POWDER STRENGTHENED METHOD FOR REMOVING NITRATE NITROGEN AND INORGANIC PHOSPHORUS

The present invention belongs to the technical field of water treatment, and in particular to a magnetic powder strengthened method for removing nitrate nitrogen and inorganic phosphorus, which includes the following steps: (1) mixing permanent magnetic material powder with paramagnetic Fe3O4 powder, and magnetizing the mixture in a magnetic field to prepare magnetic powder; (2) adding the magnetic powder directly or in a form of granular filler into a water treatment reaction vessel; and (3) allowing the to-be-treated water to enter the water treatment reaction vessel, performing a chemical reaction of removing nitrate nitrogen and inorganic phosphorus in the presence of a reducing agent, and discharging the water after the reaction is completed. By adopting the method of the present invention, a uniform and fine magnetic field can be provided, thus the reaction efficiency is improved, and the process is simplified and the cost is lowered.

SYSTEM AND METHOD FOR ULTRASOUND ELASTOGRAPHY AND METHOD FOR DYNAMICALLY PROCESSING FRAMES IN REAL TIME

Disclosed are a system and a method for ultrasound elastography and a method for dynamically processing frames in real time. The system includes an elasticity processing apparatus having an elasticity information detecting module for extracting elasticity information representing the elasticity of a target to be detected; a quality parameter calculating module for calculating at least a quality parameter reflecting quality of each elasticity image corresponding to the elasticity information; and a frame processing module for determining whether to output corresponding elasticity image based on the quality parameter of each elasticity image. When calculating a strain of consecutive images, the parameter reflecting the quality of each image is also computed, through which, the current elasticity image is determined whether to be displayed, thus avoiding the situation that colors of acquired successive elasticity images may vary greatly due to large difference existing in stress.

Modeling method and apparatus for diagnosing ophthalmic disease based on artificial intelligence, and storage medium

The present disclosure proposes a modeling method and apparatus for diagnosing an ophthalmic disease based on artificial intelligence, and a storage medium. The modeling method includes: establishing a data collection of ophthalmic images and a data collection of non-image ophthalmic disease diagnosis questionnaires; training a first neural network model by employing the data collection of the ophthalmic images to obtain a first classification model; training a second classification model by employing the data collection of non-image ophthalmic disease diagnosis questionnaires; and merging the first classification model and the second classification model to obtain a target classification network model, in which, a test result outputted by the target classification network model is used as a diagnosis result of the ophthalmic disease.

CONTEXTUAL SEARCH INPUT FROM ADVISORS

Embodiments of the invention comprise systems, computer program products, and methods for providing a contextual search tool to a user. The contextual search tool receives a search from the user and provides search results, content, and dynamic contextual information (e.g., dynamic contextual questions, user information, and account information) to the user. The contextual search tool then receives contextual information input from the user with an indication that the user would like to communicate with an advisor, and a communication channel is opened between the user and the advisor. The advisor has access the user's search and provides contextual information input, which allows the contextual search tool to update the search results and the dynamic contextual information. As such, the invention of the present invention improves the ability of the contextual search tool to provide tailored, customized, and relevant search results to the user based in part on advisor input. 1. A system for providing a contextual search tool that improves search results presented to a user based on advisor input , the system comprising:one or more memory devices; and receive a search from a user through a contextual search interface;', 'determine search results and dynamic contextual information based on the search from the user, wherein the dynamic contextual information comprises at least a dynamic contextual question;', 'display the search results in a search results section, content in a content section for at least one of the search results from the search results section, and the dynamic contextual information in a dynamic contextual information section of the contextual search interface, wherein the search results section, the content section, and the dynamic contextual information section are different sections;', 'determine a notification request for a communication with an advisor type based at least on the search from the user;', 'display the notification request to the ...

LINKING CUSTOMER PROFILES WITH HOUSEHOLD PROFILES

Embodiments of the invention comprise systems, computer program products, and methods for generating a response to a user search. User input is received to create a household profile, wherein the household profile comprises information related to the members of the household. The user also provides a search for information in which the user may be interested. The household profiles may be utilized along with the search, and with other information, such as user profile information, account information, or dynamic contextual questions to provide search results or updated search results, and dynamic contextual information or updated dynamic contextual information for tailoring the search results to the user. The user may select which households, which individuals in the households, and/or information about the individuals to use in the search. As such, the search results for the user may be more tailored to the results in which the user is interested. 1. A system for providing a contextual search tool that improves search results presented to a user , the system comprising:one or more memory devices; and receive a search from the user;', 'determine the search results to display in a contextual search interface based on the search;', 'display the search results in a search results section of the contextual search interface, wherein the search results comprise a list of the search results;', 'display content in a content section of the contextual search interface, wherein the content is for at least one of the search results from the search results section, and wherein the content section and the search results section are different sections;', 'determine dynamic contextual information based on the search from the user and the household profile information, wherein the dynamic contextual information comprises household profile information associated with the user;', 'display the dynamic contextual information in a dynamic contextual information section of the contextual ...

CONTEXTUAL SEARCH TOOL

Embodiments of the invention comprise systems, computer program products, and methods for providing a contextual search tool to a user. The contextual search tool receives a search from the user and provides search results, content, and dynamic contextual information (e.g., dynamic contextual questions, user information, and account information) to the user. The contextual search tool then receives contextual information input from the user (input for the dynamic contextual information, selection of the search results, or the like) and updates the search results and the dynamic contextual information. As such, the invention of the present invention improves the ability of the contextual search tool to provide tailored, customized, and relevant search results to the user based not only on the search terms provided by the user, but based on dynamic contextual information that changes as the user takes actions within the contextual search interface. 1. A system for providing a contextual search tool that improves search results presented to a user , the system comprising:one or more memory devices; and receive a search from the user;', 'determine the search results to display in a contextual search interface;', 'display the search results in a search results section of the contextual search interface, wherein the search results comprise a list of the search results;', 'display content in a content section of the contextual search interface, wherein the content is for at least one of the search results from the search results section, and wherein the content section and the search results section are different sections;', 'determine dynamic contextual information based on the search from the user, wherein the dynamic contextual information comprises at least one dynamic contextual question;', 'display the dynamic contextual information in a dynamic contextual information section of the contextual search interface, wherein the dynamic contextual information section is ...

SYSTEM AND METHOD FOR ULTRASOUND ELASTOGRAPHY AND METHOD FOR DYNAMICALLY PROCESSING FRAMES IN REAL TIME

Disclosed are a system and a method for ultrasound elastography and a method for dynamically processing frames in real time. The system includes an elasticity processing apparatus having an elasticity information detecting module for extracting elasticity information representing the elasticity of a target to be detected; a quality parameter calculating module for calculating at least a quality parameter reflecting quality of each elasticity image corresponding to the elasticity information; and a frame processing module for determining whether to output corresponding elasticity image based on the quality parameter of each elasticity image. When calculating a strain of consecutive images, the parameter reflecting the quality of each image is also computed, through which, the current elasticity image is determined whether to be displayed, thus avoiding the situation that colors of acquired successive elasticity images may vary greatly due to large difference existing in stress. 1. A system for ultrasound elastography , comprising:an ultrasonic probe that emits an ultrasonic beam to a target to be detected and receives ultrasonic echoes from the target to obtain received signals;a processor that performs an elasticity process on the received signals from the ultrasonic probe to obtain a plurality of elasticity images; anda display device that displays one or more of the plurality of elasticity images; extract elasticity information representing the elasticity of the target from a plurality of elasticity images corresponding to the received signals from the ultrasonic probe;', 'calculate at least a quality parameter reflecting quality of each elasticity image of the plurality of elasticity images corresponding to the elasticity information;', 'identify whether a dynamic process start point frame exists in a sequence of corresponding frames of the plurality of elasticity images; and', 'determine whether to output a corresponding elasticity image of the plurality of ...

PULSE OFFSET ULTRASONIC IMAGING

A diagnostic ultrasound image of a region of interest (ROI) of a body is formed by transmitting into the ROI at least a first and a second ultrasound pulse, in which the second pulse is phase-shifted relative to the first pulse by an amount other than 0 or a multiple of 180 degrees. Discretized receive signals from the pulses are interleaved to form a resultant operating signal that is detected and beamformed as the operating signal. 1. A method for creating an image of a region of interest of a body comprising:transmitting a first ultrasonic pulse into the region of interest;sensing first receive signals corresponding to ultrasonic energy from the first ultrasonic pulse reflected from within the region of interest;transmitting a second ultrasonic pulse into the region of interest;sensing second receive signals corresponding to ultrasonic energy from the second ultrasonic pulse reflected from within the region of interest;interleaving discretized representations of the first and second receive signals to form a resultant operating signal; andcreating the image of the region of interest as a function of the resultant operating signal;wherein the second ultrasonic pulse is phase-shifted relative to the first ultrasonic pulse by an amount other than zero degrees or a multiple of 180 degrees.2. The method of claim 1 , further comprising:extracting a nonlinear component from the operating signal; andbeamforming the nonlinear component to generate a scan line, whereby a series of scan lines form the image.3. The method of claim 1 , in which K receive signals claim 1 , corresponding to echo signals from respective claim 1 , relatively phase-offset transmitted ultrasonic pulses claim 1 , are discretized and interleaved to form the resultant operating signal.4. The method of claim 3 , in which K is greater than two.5. The method of claim 3 , in which:K is two or greater;{'sub': 's', 'the phase shift is chosen such that the second ultrasonic pulse is transmitted with a time ...

Method and device for detecting displacement in elastography

Disclosed are a method and a device for detecting displacement in elastography. The method comprises: acquiring a target point, acquiring a cross-correlation phase calculation location of the target point in a second frame image; calculating a cross-correlation phase according to the cross-correlation phase calculation location; calculating a longitudinal displacement result according to the cross-correlation phase; and calculating a gradient of the displacement result to obtain a strain result. Through the elastography method and device, I/Q-channel echo baseband signals, obtained by downsampling, of two frames before and after compression are acquired, displace information between the two frames is rapidly detected by guiding phase estimation, and axial gradient calculation is performed to obtain strain information, which can not only obtain a strain image of high quality but also reduce the calculation amount, thereby satisfying the clinical real-time requirement.

METHOD AND SYSTEM FOR DISPLAYING ULTRASONIC ELASTIC MEASUREMENT

A method for displaying an ultrasonic elastic measurement, comprising a probe (), a receiving circuit and a beam-forming unit (), and an elasticity related result calculation unit (). The probe () generates a shear wave inside a target tissue, and allows the sear wave to pass through regions of interest (CCCCC), and sends a tracking pulse to the regions of interest (CCCCC) through which the shear wave passes. The receiving circuit and beam-forming unit () receive echo information of the tracking pulse. The elasticity related result calculation unit () calculates shear wave parameters according to the echo information of the tracking pulse, so as to obtain a corresponding elastic measurement result (C) of the regions of interest (CCCCC), obtains a corresponding relationship between the elastic measurement result (VC) and statistical variables and generates graphic marks (, Sa, Sb, SC, SC, SC, SC, SC, SC′, SC′, SC′, SC′, SC), wherein attributes of the graphic marks measurement result (C). Further disclosed is a method for displaying an ultrasonic elastic measurement. The method and system can provide elasticity measurement statistical data that are more intuitive and more informative. 157-. (canceled)58. An elastic ultrasonic measurement display method , comprising:generating a shear wave inside a target tissue which passes through a region of interest;transmitting a tracking pulse to the region of interest through which the shear wave passes, and receiving an echo information of the tracking pulse;calculating a shear wave parameter according to the echo information of the tracking pulse to obtain an elastic measurement result corresponding to the region of interest;obtaining a correspondence relationship between the elastic measurement result and a statistical variable;generating a graphic mark, wherein an attribute of the graphic mark is determined by the elastic measurement result; anddisplaying a relationship between the graphic mark and the statistical variable ...

Pulse offset ultrasonic imaging

A diagnostic ultrasound image of a region of interest (ROI) of a body is formed by transmitting into the ROI at least a first and a second ultrasound pulse, in which the second pulse is phase-shifted relative to the first pulse by an amount other than 0 or a multiple of 180 degrees. Discretized receive signals from the pulses are interleaved to form a resultant operating signal that is detected and beamformed as the operating signal.

Methods and apparatus for hprf doppler ultrasonic imaging

A method for High Pulse Repeat Frequency (HPRF) Doppler ultrasonic imaging comprises: collecting parameters including a selected PRF level, real sample volume depth and sampling gate size; setting a selectable PRF range according to a standard PRF value corresponding to the selected PRF level; evaluating each PRF successively selected from the selectable PRF range with a preset step; and taking the PRF with best evaluation as the best PRF of the selected PRF level to be used in ultrasonic pulses transmission.

Body of electric toothbrush

Method and system for ultrasonic fluid spectral doppler imaging

A method and system for ultrasonic fluid spectral Doppler imaging are disclosed. The system comprises: a transmission circuit for transmitting an ultrasonic beam to a detection object; a receiving circuit and a beam synthesis module for receiving an echo of the ultrasonic beam and obtaining an ultrasonic echo signal; an image processing module for obtaining an ultrasonic fluid flow state image of a region of interest in the detection object according to the ultrasonic echo signal, identifying a sampling position in the region of interest, respectively obtaining a Doppler spectrogram corresponding to each sampling position according to the ultrasonic echo signal, and generating position displaying marks for characterizing the sampling positions; and a display for displaying the position displaying marks in the ultrasonic fluid flow state image, and displaying the obtained Doppler spectrogram. The system may simultaneously display spectra of multiple locations on a same time axis.

Electric toothbrush

Body of electric toothbrush

Electric toothbrush

Body of electric toothbrush

Ultrasound elasticity measurement device and method

An ultrasound elasticity measurement device includes an ultrasound probe. The ultrasound probe includes a vibrator and a transducer. The ultrasound elasticity measurement device further includes a vibration controller, a transmission/receiving controller and a data processor. When simultaneously performing the strain detection and the vibration elasticity detection, the vibration controller generates a vibration control sequence and transmits the same to the vibrator. The ultrasound probe vibrates when driven by the vibrator, and transmits ultrasound waves to the biological tissue and receives the ultrasound echoes, so as to obtain the ultrasound echo data for strain detection and the ultrasound echo data for vibration elasticity detection. The data processor calculates the strain elasticity result according to the ultrasound echo data for strain detection calculates the vibration elasticity result according to the ultrasound echo data for vibration elasticity detection, thereby realizing simultaneously to strain elasticity imaging and the vibration elasticity measurement.

Ultrasound-based liver examination device, ultrasound apparatus, and ultrasound imaging method

An ultrasound apparatus, ultrasound-based liver examination device and ultrasound imaging method are provided. The ultrasound apparatus may include: an ultrasound probe, a transmission and receiving controller, an ultrasound echo signal processor, a data processor and a display device. The ultrasound echo signal processor may perform different processes on an ultrasound echo signal according to usage of the ultrasound echo signal. A gain compensation for enhancing image quality may be performed on a first ultrasound echo signal to be used for obtaining the ultrasound image, and a gain compensation for preserving original information may be performed on a second ultrasound echo signal to be used for calculating a quantitative parameter of a liver. The data processor may generate the ultrasound image according to the processed first ultrasound echo signal, calculate the quantitative parameter according to the processed second ultrasound echo signal, and output the ultrasound image and the quantitative parameter.

Method and system for ultrasonic fluid spectral doppler imaging

A method and system for ultrasonic fluid spectral Doppler imaging are disclosed. The system comprises: a transmission circuit for transmitting an ultrasonic beam to a detection object; a receiving circuit and a beam synthesis module for receiving an echo of the ultrasonic beam and obtaining an ultrasonic echo signal; an image processing module for obtaining an ultrasonic fluid flow state image of a region of interest in the detection object according to the ultrasonic echo signal, identifying a sampling position in the region of interest, respectively obtaining a Doppler spectrogram corresponding to each sampling position according to the ultrasonic echo signal, and generating position displaying marks for characterizing the sampling positions; and a display for displaying the position displaying marks in the ultrasonic fluid flow state image, and displaying the obtained Doppler spectrogram. The system may simultaneously display spectra of multiple locations on a same time axis.

Ultrasonic imaging apparatus and method, and ultrasonic elastic testing apparatus and method

A method and apparatus for generating a shear wave. The method comprises: transducers transmit ultrasound waves to a region of interest once; the ultrasound waves focus on at least two focal points in an acoustic field; and with shear wave sources corresponding to the at least two focal points that propagates in a direction perpendicular to a transmission direction of the ultrasound waves. A method and apparatus for detecting an ultrasound elasticity of a shear wave discloses, in a same ultrasound transmission, multiple focal points are gathered in an acoustic field by the ultrasound waves, under the joint effect of the multiple focal points, and a shear wave zone propagated in a direction perpendicular to a direction in which the ultrasound waves is transmitted is formed, so as to expand a propagation range of the shear wave in a tissue, so that detecting ultrasound waves can perform elasticity detection on the tissue in a large range.

Body of electric toothbrush

Body of electric toothbrush

Body of electric toothbrush

Shear wave elasticity imaging method and ultrasonic imaging device

Shear wave elasticity imaging methods and ultrasound imaging devices are provided. The method may include: generating a shear wave in a target area of an object being examined; transmitting a first ultrasonic wave to the target area and receiving first echo data; determining an elasticity parameter of the target area according to the first echo data; obtaining a motion parameter of the target area; and displaying the elasticity parameter and the motion parameter.

一种箱式干燥装置

本新型提供了一种箱式干燥装置，包括用于容纳物料的箱体，箱体顶部一侧设有进料口，箱体内的底部设有能在底部均匀曝气的曝气机构和将物料卸出的出料机构，曝气机构连接外部的供气管，所述供气管上设有加热器，箱体上设有一抽气管；所述箱体下部设有进料口的对侧设有出料口，所述出料机构包括至少一根设于箱体内底部并穿过出料口的滑架，滑架能够在沿其长度方向往复移动，滑架包括一根主梁和设于主梁两侧的拨翅，主梁的外端连接能带动滑架往复移动的动力装置。本实用新型能够利用热风对箱体内底部的物料进行干燥，可以实现连续进料和出料，干燥效率高；采用箱体内干燥方式，受环境条件的影响小，不论在南方或北方都可以使用，适用范围广。

Shear wave elasticity measurement method and shear wave elasticity imaging system

A shear wave elasticity measurement method and a shear wave elasticity imaging system are disclosed. For each pair of corresponding shear waves, an echo signal within a continuous period of time can be obtained only at a third position, so that an elasticity parameter corresponding to the target area can be obtained according to the echo signal within the continuous period of time. Not only the position required for obtaining an echo signal is few, but also the total data volume required for obtaining the echo signal is few. The calculation method is also easy, which significantly reduces the system performance requirement.

Storage of content associated with a resource locator

A method can be performed by a browser. The method can include presenting at least a portion of a resource address; presenting a rendered webpage in a browser content window, the rendered webpage being associated with the resource address; presenting an annotation area, the annotation area being outside the browser content window; receiving, in association with a user account, an annotation in the annotation area; and storing the annotation in association with the user account and the resource address.

Oilseed rape green revolution gene bgr and use thereof

The present application discloses an oilseed rape green revolution gene bgr and usethereof. The gene bgr can significantly reduce the height of oilseed rape plants, make the stemsthick and strong, realize lodging resistance, reduce the branching angle, compact the plantarchitecture, and effectively improve the harvest index. The gene 5 has a significant heterosis,and the heterozygous bgr can enable tetraploid oilseed rapes (Brassica napus and Brassicajuncea) to have more ideal plant architecture characteristics, wherein the plant height is 120to 160 cm, the plant architecture is compact, and the branching angle is small (<30°), theposition of the first branching is lowered, the harvest index is improved by about 29.03%, the10 method is suitable for dense planting, the yield is significant increased by 11% to 27%. Theoil content of hybrid Brassica napus with bgr is substantially increased up to 51.7% to 54.86%,which is 9.14% to 19.26% higher than that of common high-oil oilseed rape varieties. Thepresent application contributes valuable gene resources for oilseed rape breeding, and providesan effective means for the creation of new oilseed rape germplasm.

一种换热装置

本新型提供了一种换热装置，包括壳体，所述壳体内设有至少一个显热换热器，所述显热换热器将腔室分成两个相互气密的热风风道和冷风风道，热风风道和冷风风道分别连接设于壳体内的显热换热器的两个换热风道。本实用新型有益效果：本实用新型能够使进入换热装置的热风的和冷风进行热交换，冷风吸收热风的热量升温，然后进入烘干装置的进风口，提高进风温度，防止进风温度过低影响微生物活性，同时为微生物有氧活动提供氧气，提高微生物产热量，加快物料水分的蒸出；壳体内设置多个显热换热器，可以实现多级换热的目的，使冷风和热风进行充分热交换，显著提高换热效率。

Storage of content associated with a resource locator

A method can be performed by a browser. The method can include presenting at least a portion of a resource address; presenting a rendered webpage in a browser content window, the rendered webpage being associated with the resource address; presenting an annotation area, the annotation area being outside the browser content window; receiving, in association with a user account, an annotation in the annotation area; and storing the annotation in association with the user account and the resource address.

一种干燥装置的布风板结构

本新型提供了一种干燥装置的布风板结构，包括进风部和布风部，进风部与外部风动力设备连接，布风部为与进风部连接的中空的板状且内设风腔，布风部的两侧面设有与风腔连通的风孔。本实用新型配合热风动力装置后能够实现对料垛热量导入和水汽的导出，实现对燃料或物料的主动强热干燥，布风板设计合理，布风均匀；由于埋在料垛内，热损失小，热量导入效率更高；两个布风板之间形成单向的抽吹气流，能够利用很小的风量完成料垛内水汽的迁移，减少风动力设备的能耗。

Method for inducing spawning of single individuals of parent apostichopus japonicus

Shear wave elasticity imaging method and ultrasound imaging device

Shear wave elasticity imaging methods and ultrasound imaging devices are provided. The method may include: generating a shear wave in a target area of an object being examined; transmitting a first ultrasonic wave to the target area and receiving first echo data; determining an elasticity parameter of the target area according to the first echo data; obtaining a motion parameter of the target area; and displaying the elasticity parameter and the motion parameter.

New method for breeding abalone spat

Ultrasound imaging method and ultrasound imaging device

Ultrasound imaging methods and ultrasound imaging devices are provided, in which an inter-frame processing may be performed on elasticity echo data or the elasticity images to obtain new elasticity images, thereby improving the display frame rate of the elasticity images. The elasticity echo data comprises an ultrasound echo of an ultrasound wave returned from an object, and the elasticity images comprises at least two frames and obtained according to the elasticity echo data.

Magnetized powder strengthened method for removing nitrate nitrogen and inorganic phosphorus

The present invention belongs to the technical field of water treatment, and in particular to a magnetic powder strengthened method for removing nitrate nitrogen and inorganic phosphorus, which includes the following steps: (1) mixing permanent magnetic material powder with paramagnetic Fe3O4 powder, and magnetizing the mixture in a magnetic field to prepare magnetic powder; (2) adding the magnetic powder directly or in a form of granular filler into a water treatment reaction vessel; and (3) allowing the to-be-treated water to enter the water treatment reaction vessel, performing a chemical reaction of removing nitrate nitrogen and inorganic phosphorus in the presence of a reducing agent, and discharging the water after the reaction is completed. By adopting the method of the present invention, a uniform and fine magnetic field can be provided, thus the reaction efficiency is improved, and the process is simplified and the cost is lowered.

Ultrasound viscoelasticity measurement method and apparatus and storage medium

Disclosed are an ultrasonic viscoelasticity measuring method, an apparatus and a storage medium. The method comprises: outputting a first transmitting/receiving sequence to a transducer of an ultrasonic probe to control the transducer to transmit a first ultrasonic wave to a target object and acquire a first ultrasonic echo signal; generating and displaying an ultrasonic image based on the first ultrasonic echo signal and acquiring a region of interest on the ultrasonic image; outputting different drive signals to a vibrator of the ultrasonic probe to perform viscoelasticity measurement, and exerting various mechanical vibrations on the target object by the transducer driven by the vibrator based on at least two different vibration signals; outputting a second transmitting/receiving sequence to the transducer to control the transducer to transmit a second ultrasonic wave to the region of interest to acquire a second ultrasonic echo signal; and acquiring and displaying elasticity parameter(s) and viscosity parameter(s) of the region of interest based on the second ultrasonic echo signal of the region of interest under the various mechanical vibrations. The proposed scheme can effectively improve the accuracy and stability of measured result.

Ultrasound elasticity measuring devices and elasticity comparative measuring methods

An elasticity comparative measuring method includes: controlling an ultrasound probe to transmit a first ultrasound wave to a region of interest in a biological tissue when the biological tissue is deformed; receiving echoes of the first ultrasound wave to obtain a first echo signal; controlling the ultrasound probe to transmit a second ultrasound wave to the region of interest when the biological tissue is deformed; receiving echoes of the second ultrasound wave to obtain a second echo signal; obtaining a first elasticity result corresponding to a first cross section in the region of interest according to the first echo signal; obtaining a second elasticity result corresponding to a second cross section in the region of interest according to the second echo signal; outputting, via a display, the first elasticity result and the second elasticity result.

Storage of content associated with a resource locator

A method can be performed by a browser. The method can include presenting at least a portion of a resource address; presenting a rendered webpage in a browser content window, the rendered webpage being associated with the resource address; presenting an annotation area, the annotation area being outside the browser content window; receiving, in association with a user account, an annotation in the annotation area; and storing the annotation in association with the user account and the resource address.

Storage of content associated with a resource locator

A method can be performed by a browser. The method can include presenting at least a portion of a resource address; presenting a rendered webpage in a browser content window, the rendered webpage being associated with the resource address; presenting an annotation area, the annotation area being outside the browser content window; receiving, in association with a user account, an annotation in the annotation area; and storing the annotation in association with the user account and the resource address.

Shear wave elasticity measurement method and shear wave elasticity imaging system

Disclosed are a shear wave elasticity measurement method and a shear wave elasticity imaging system. For each pair of corresponding shear waves, an echo signal within a continuous period of time can be obtained only at a third position, so that an elasticity parameter corresponding to the target area can be obtained according to the echo signal within the continuous period of time. Not only the position required for obtaining an echo signal is few, but also the total data volume required for obtaining the echo signal is few; the calculation method is also easy, which significantly reduces the system performance requirement.

Rape green revolution gene bgr and use thereof

Provided are a rape green revolution gene bgr and a use thereof. The gene bgr can significantly reduce the height of rape plants, achieve thick and strong stems, lodging resistance, a reduced branching angle, and a compact plant type, and can effectively increase the harvest index. The gene has remarkable heterosis, heterozygous bgr can enable tetraploid rape (Brassica napus and Brassica juncea) to have more ideal plant type characteristics, the plant height is 120-160 cm, the plant type is compact, the branching angle is small (less than 30°), the first branching position is lowered, the harvest index is increased by about 29.03%, the gene is suitable for close planting, and the yield is greatly increased by 11-27%. The oil content of hybrid Brassica napus having bgr is greatly increased and can reach 51.7-54.86%, and compared with the oil contents of common high-oil-content rape varieties, the oil content is increased by 9.14-19.26%. A valuable genetic resource is provided for rape breeding, and an effective means is provided for creation of new rape germplasm.

Ultrasound elastography imaging system and method

The present disclosure relates to an ultrasound elastography system and method. The system may include a transmitting/receiving unit which transmits ultrasound pulses to a target and receives ultrasound echoes from the target to obtain the ultrasound echo signals; an imaging unit which processes the ultrasound echo signals and displays the obtained image; and an analysis unit which detects a region of interest and a shell region selected by an operator in the image, calculate elasticity parameters in a reference region and the shell region respectively, and analyzes the elasticity parameters to obtain an analysis result.

Ultrasound imaging device and method for detecting peristalsis of endometrium

An ultrasonic imaging device and a method for detecting endometrial peristalsis. The method comprises: acquiring ultrasound echo data of the endometrium (1), and determining on said basis the peristaltic displacement or peristaltic speed of a point in the endometrium within a preset period of time (2); calculating peristalsis parameters of the endometrium according to the peristaltic displacement or the peristaltic speed of the point in the endometrium within the preset period of time, the peristalsis parameters being used to describe the moving state of endometrial peristalsis (3); and displaying the peristalsis parameters (4). Thus, peristalsis parameters are calculated automatically without relying on the subjective determination of an ultrasound doctor, which improves the accuracy and efficiency of the detection of peristalsis.

Contextual search tool

This invention provides a contextual search tool to a user. The contextual search tool receives a search from the user and provides search results, content, and dynamic contextual information (e.g., dynamic contextual questions, user information, and account information) to the user. The contextual search tool then receives contextual information input from the user (input for the dynamic contextual information, selection of the search results, or the like) and updates the search results and the dynamic contextual information. As such, the invention of the present invention improves the ability of the contextual search tool to provide tailored, customized, and relevant search results to the user based not only on the search terms provided by the user, but based on dynamic contextual information that changes as the user takes actions within the contextual search interface.

Contextual search input from advisors

This invention provides a contextual search tool to a user. The contextual search tool receives a search from the user and provides search results, content, and dynamic contextual information (e.g., dynamic contextual questions, user information, and account information) to the user. The contextual search tool then receives contextual information input from the user with an indication that the user would like to communicate with an advisor, and a communication channel is opened between the user and the advisor. The advisor has access the user's search and provides contextual information input, which allows the contextual search tool to update the search results and the dynamic contextual information. As such, the invention of the present invention improves the ability of the contextual search tool to provide tailored, customized, and relevant search results to the user based in part on advisor input.

Linking customer profiles with household profiles

Embodiments of the invention comprise systems, computer program products, and methods for generating a response to a user search. User input is received to create a household profile, wherein the household profile comprises information related to the members of the household. The user also provides a search for information in which the user may be interested. The household profiles may be utilized along with the search, and with other information, such as user profile information, account information, or dynamic contextual questions to provide search results or updated search results, and dynamic contextual information or updated dynamic contextual information for tailoring the search results to the user. The user may select which households, which individuals in the households, and/or information about the individuals to use in the search. As such, the search results for the user may be more tailored to the results in which the user is interested.

Method and device for detecting displacement in elastography

Disclosed are a method and a device for detecting displacement in elastography. The method comprises: acquiring a target point, acquiring a cross-correlation phase calculation location of the target point in a second frame image; calculating a cross-correlation phase according to the cross-correlation phase calculation location; calculating a longitudinal displacement result according to the cross-correlation phase; and calculating a gradient of the displacement result to obtain a strain result. Through the elastography method and device, I/Q-channel echo baseband signals, obtained by downsampling, of two frames before and after compression are acquired, displace information between the two frames is rapidly detected by guiding phase estimation, and axial gradient calculation is performed to obtain strain information, which can not only obtain a strain image of high quality but also reduce the calculation amount, thereby satisfying the clinical real-time requirement.