Abstract: The present disclosure provides a method, an apparatus for acquiring blood vessel evaluation parameter based on physiological parameter, and a storage medium. The method for acquiring blood vessel evaluation parameter based on physiological parameter comprises acquiring a physiological parameter (S000); acquiring a blood flow velocity v (S020); acquiring, in real time, an aortic pressure waveform changing over time (S020); acquiring a coronary artery blood vessel evaluation parameter according to the blood flow velocity v, the aortic pressure waveform and the physiological parameter (S030). The coronary artery blood vessel evaluation parameter is acquired according to the blood flow velocity v, the aortic pressure waveform and the physiological parameter.

Abstract: Provided are a method and apparatus for adjusting blood flow velocity in maximum hyperemia state based on index for microcirculatory resistance. The method comprises: acquiring an index for microcirculatory resistance iFMR during a diastolic phase according to a blood flow velocity v, an aortic pressure waveform, and an physiological parameter (S100); making an adjustment parameter r equal to 1 if the index for microcirculatory resistance iFMR during the diastolic phase is less than K; making the adjustment parameter r satisfy a formula r=1?(iFMR?K)/100 if the index for microcirculatory resistance iFMR during the diastolic phase is greater than or equal to K, wherein K is a positive number less than 100 (S200); acquiring a corrected blood flow velocity in a maximum hyperemia state according to a product of the adjustment parameter and a blood flow velocity in the maximum hyperemia state (S300).

Abstract: Embodiments of this application disclose a common aperture antenna and a communication device. The common aperture antenna includes: a reflection panel and a low frequency antenna unit, a frequency selective panel, and a high frequency antenna unit that are disposed on the same side as the reflection panel and are arranged in sequence. In the direction perpendicular to the reflection panel, the distance between the high frequency antenna unit and the reflection panel is greater than the distance between the low frequency antenna unit and the reflection panel, the frequency selective panel is disposed between the high frequency antenna unit and the low frequency antenna unit, and the frequency selective panel is a reflection ground of the high frequency antenna unit and has a total reflection characteristic for the working frequency of the high frequency antenna unit.

Abstract: Embodiments of this application provide an adjustment apparatus, which includes a drive unit; a plurality of adjustment rods correspondingly connected to a plurality of loads, the plurality of adjustment rods are classified into a first adjustment rod group and a second adjustment rod group; a selection unit, where the drive unit is configured to drive the selection unit to be connected to at least one adjustment rod in the first adjustment rod group or at least one adjustment rod in the second adjustment rod group; a shift unit, where the shift unit is configured to enable the selection unit to be switched between the first adjustment rod group and the second adjustment rod group; and an adjustment unit, where the drive unit is configured to drive the adjustment unit to drive the adjustment rod connected to the selection unit to move.

Abstract: A positioning method, a device, a system, a chip, and a storage medium are provided. A network device is externally connected to N antennas, the network device has N receive channels, and the N antennas are in a one-to-one correspondence with the N receive channels. The method includes: A network device receives, by using each of the N antennas, a positioning signal sent by a terminal device, determines TOA information and/or RSSI information of the positioning signal on each of the N receive channels, and sends the TOA information and/or the RSSI information of the positioning signal on each of the N receive channels to a service anchor. The service anchor is configured to position the terminal device based on the TOA information and/or the RSSI information.

Abstract: A method, an apparatus and a system for conveniently measuring coronary artery vascular evaluation parameters are provided by the disclosure.

Abstract: A simplified method, an apparatus and a system for measuring coronary artery vascular evaluation parameters are provided.

Abstract: This application discloses an antenna, an antenna array, and a communications device. The antenna includes a radiation part and a feeding part. The feeding part is coupled to the radiation part and is configured to feed power to the radiation part, so that the radiation part radiates a low-frequency signal outward. The radiation part includes one or more frequency selection units with a bandpass characteristic, and the radiation part is a structure that is capable of exciting, when a high-frequency signal passes through, coupling currents. When the high-frequency signal passes through the radiation part, each pair of coupling currents excited on the radiation part appear in pairs and can cancel each other. This can reduce or even completely eliminate a high-frequency induced current with the same frequency as the high-frequency signal on the radiation part.

Abstract: This application discloses a submarine cable fault determining method and apparatus for realizing detecting whether a fault occurs to a submarine cable, without depending on TTE. The submarine cable fault determining method includes: receiving, by a network management system, first detection information from a first device during a first preset time, and receiving second detection information from a second device during a second preset time, where the second detection information is used to indicate whether the second device receives a first heartbeat signal from the first device through a submarine cable, and the first detection information is used to indicate whether the first device receives a second heartbeat signal from the second device through the submarine cable; and determining, by the network management system based on the first detection information and the second detection information, whether a fault occurs to the submarine cable between the first device and the second device.

Abstract: Disclosed is a rotational flow rotation deoiling method for oil-based mud rock debris.

Abstract: The present disclosure discloses a perception data detection method and apparatus. The specific implementation scheme is: acquiring labeled data and perception data, where the labeled data includes a labeled position and a labeled type of at least one first obstacle, and the perception data includes a perception position and a perception type of at least one second obstacle; performing, according to a negative sample in the labeled data, rough filtering on the second obstacle in the perception data to obtain a third obstacle remaining after the rough filtering, where the negative sample is a non-physical obstacle; determining a matching relationship between the third obstacle and the negative sample, and determining the negative sample having the matching relationship with the third obstacle as a target obstacle; and determining, according to the number of the target obstacle and the number of the first obstacle, a detection result of the perception data.

Abstract: The present application discloses a testing method and apparatus for a vehicle perception system, a device and a storage medium, and relates to data processing and, in particular to the field of artificial intelligence such as automatic driving, intelligent transportation, etc. A specific implementation scheme lies in: acquiring an actual speed and a perceptual speed of a test object, where the perceptual speed of the test object is a speed of the test object perceived by the vehicle perception system; determining, according to the actual speed of the test object and the perceptual speed of the test object, speed reporting delay time of the vehicle perception system, where the speed reporting delay time is used to reflect sensitivity of the vehicle perception system to perceive a speed of an obstacle.

Abstract: Embodiments of this application provide a radiation apparatus and a multi-band array antenna, and relate to the field of antenna technologies. The radiation apparatus includes a radiation module, a first conductor balun, and a second conductor balun. The first conductor balun is mechanically connected to the second conductor balun under the radiation module. The radiation module includes a first radiation unit and a second radiation unit in a +45° polarization direction, and a third radiation unit and a fourth radiation unit in a ?45° polarization direction. The first conductor balun is configured to feed a first differential signal to the first radiation unit and the second radiation unit. The second conductor balun is configured to feed a second differential signal to the third radiation unit and the fourth radiation unit. The first conductor balun and the second conductor balun are disposed in the same plane.

Abstract: The present invention discloses a photoelectric joystick assembly composed of a joystick and a substrate, the substrate being provided with three pairs of photoelectric tubes; first and second linkage members are respectively provided with rotatable first and second luminous flux changing members at one end, thereby oscillating in the respective photoelectric tubes, respectively, so that the light received by a photosensitive element from a light-emitting element continuously changes; the second linkage member is further provided with an elastic member with a light path mechanism thereacross. which acts on communication or block of the light path of the photoelectric tubes to provide a switch signal. The solution of the present invention is to replace the mechanical contact switch and potentiometer for transmission with a photoelectric element and an original structure, and design a connection structure and manner originally, by which these photoelectric elements are arranged in the rocker masterly.

Abstract: A switch device, having a reset assistant part arranged at the second end of a male leg, and a ram; the reset assistant part being provided with a holding station, both sidewalls of which are each provided with a saddle, both sides of the ram being provided, with a cam matching with the saddle, the ram is hung from the saddle through two cams. Accordingly, a photoelectrical type switch of scissor-leg structure is realized, and the key is enabled to have an obvious stage sense and sound.

Abstract: The present invention discloses a lifting key and a telescopic folding method. When a cover or handle is closed, the key is in a compressed state, and when the cover or handle of a device is opened, the cover or handle releases a traction mechanism, and the key drives a movable board to move by its own elastic force; after the movable board is displaced, a locked state between the movable board and an X balance frame is released, the X balance frame is unfolded under the force of a reset mechanism, and the key returns to a normal height; by slowly closing the cover or handle, the traction mechanism pulls the movable board under the action of the cover or handle, and the movable board moves back to return to an initial position. At this moment, the movable board is engaged with the X balance frame to make the key in the compressed state.

Abstract: A photoelectrical type of mechanical switch, wherein a chute is provided on the bracket; the ram upper end is provided with a protruding strip arranged in the chute which can freely move along the chute; when the bracket moves up and down, the protruding strip is restricted by the chute and drives the ram to rotate by itself. Adoption of the independent sound optical path structure enables its exhibition of more obvious key-pressing stage sense and key-pressing sound when pressing the press shaft, and can realize good “ON/OFF” function of optical path.

Abstract: This application discloses a submarine cable fault determining method and apparatus for realizing detecting whether a fault occurs to a submarine cable, without depending on TTE. The submarine cable fault determining method includes: receiving, by a network management system, first detection information from a first device during a first preset time, and receiving second detection information from a second device during a second preset time, where the second detection information is used to indicate whether the second device receives a first heartbeat signal from the first device through a submarine cable, and the first detection information is used to indicate whether the first device receives a second heartbeat signal from the second device through the submarine cable; and determining, by the network management system based on the first detection information and the second detection information, whether a fault occurs to the submarine cable between the first device and the second device.