Abstract: The present disclosure related to techniques for implementing Chemical Exchange Saturation Transfer-Magnetic Resonance Imaging (CEST-MRI) sequence generation. The techniques include starting a CEST-MRI scanning process, and generating and transmitting a CEST pre-saturation pulse. When transmission of the CEST pre-saturation pulse has ended, the MRI device generates and transmits a fat-suppression pulse. When transmission of the fat-suppression pulse has ended, the MRI device generates and transmits an excitation pulse. When transmission of the excitation pulse has ended, the MRI device generates and transmits multiple non-slice-selective refocusing square-wave pulses. The present disclosure functions to increase the spatial coverage and MR signal acquisition speed of CEST-MRI imaging.

Abstract: Stable dispersions of pesticides in agricultural oil are provided. In particular, the dispersions include a particulate pesticide, agricultural oil, and an agricultural oil-soluble polymer.

Abstract: The present disclosure provides a vacuum pumping device and a food processor. The vacuum pumping device includes an upper cover; a lower cover configured to cooperated with the upper cover to form a receiving cavity and including a connecting part at a lower portion of the lower cover, a wall of the receiving cavity defining an evacuation hole and an exhaust hole; a mounting support located in the receiving cavity and connected to the upper cover and/or the lower cover; a vacuum pump connected to the mounting support, and including an air inlet communicating with the evacuation hole and an air outlet communicating with the exhaust hole; a control circuit board connected to the mounting support and electrically connected to the vacuum pump; and a power supply device located in the receiving cavity and electrically connected to the control circuit board.

Abstract: The present invention discloses a ?-galactosidase mutant, and a preparation method and application thereof, belonging to the fields of gene engineering and enzyme engineering. Amino acids of specific sites in the ?-galactosidase are mutated, the ?-galactosidase is transferred into a recombinant bacterium, and enzymatic transformation is performed under optimized conditions, so that the yield of galactooligosaccharide produced by the mutant reaches 59.8%, which is increased by about 70% as compared with that of wild enzyme, thereby implementing the increase of the galactooligosaccharide yield. The present invention has very high industrialized application value.

Abstract: Disclosed is a flexible screen support device for supporting a flexible screen, the support device comprising a support plate, a first telescopic bracket, several second telescopic brackets located at both sides of the first telescopic bracket, wherein the first telescopic bracket and the several second telescopic brackets couple the support plate and the flexible screen, and the flexible screen forms a curved surface by means of the first telescopic bracket and the several second telescopic brackets.

Abstract: The present disclosure discloses a communication method and a communications apparatus. The method includes: determining, by a first communications device, a first subcarrier spacing corresponding to a first subband; and performing, by the first communications device, signal transmission on the first subband with a second communications device based on the first subcarrier spacing; or determining, by a first communications device, a second subcarrier spacing corresponding to a second subband; and performing, by the first communications device, signal transmission on the second subband with a second communications device based on the second subcarrier spacing. The first subcarrier spacing is different from the second subcarrier spacing, and both the first subcarrier spacing and the second subcarrier spacing are integral multiples of a basic frequency spacing; and both bandwidth of the first subband and bandwidth of the second subband are integral multiples of the basic frequency spacing.

Abstract: The embodiments of the present disclosure provide a multifunctional suitcase. The suitcase may include a suitcase body and a support mechanism. The support mechanism may be configured to support the suitcase body. The support mechanism may be retractable and/or foldable with respect to the suitcase body. The suitcase according to some embodiments of the present disclosure may be transformed into the table while maintaining its storage function.

Abstract: A method of indicating transmit power of a reference signal (RS), a method of receiving transmit power of an RS, a network device, and user equipment are provided. The method includes: configuring a power offset set including a plurality of power offset values, where a power offset value in the power offset set represents a difference between power used to transmit a first RS and power used to transmit a second RS; and transmitting indication information to user equipment, where the indication information carries an actual difference value between the power used to transmit the first RS and the power used to transmit the second RS, and the actual difference value between the power is a power offset value in the power offset set.

Abstract: A method for controlling a photographing apparatus with a display screen includes detecting a sliding operation on the display screen and switching a display interface in response to the sliding operation. If the sliding operation is a first operation mode, the display interface is switched to a photographing mode setting interface. If the sliding operation is a second operation mode, the display interface is switched to a photographing function setting interface. If the sliding operation is a third operation mode, the display interface is switched to a playback control interface.

Abstract: Provided are a multi-sensor-based under-screen fingerprint capturing method and system and an electronic device, where the method is applied to an under-screen fingerprint capturing system including multiple fingerprint sensors, and includes: acquiring fingerprint information of a user captured by the multiple fingerprint sensors, where each fingerprint sensor corresponds to a sensing region, and sensing regions corresponding to the multiple fingerprint sensors form a fingerprint capturing region of the under-screen fingerprint capturing system; and determining an effectively pressed fingerprint sensor among the multiple fingerprint sensors according to the fingerprint information of the user, where the fingerprint information of the user captured by the effectively pressed fingerprint sensor is used for fingerprint authentication of the user.

Abstract: Provided are a multi-sensor-based under-screen fingerprint capturing method and system and an electronic device, applied to an under-screen fingerprint capturing system including multiple fingerprint sensors, where the method includes: determining an effectively pressed fingerprint sensor among the multiple fingerprint sensors according to a pressing region of a user on a display screen, where each fingerprint sensor corresponds to a sensing region, and sensing regions corresponding to the multiple fingerprint sensors form a fingerprint capturing region of the under-screen fingerprint capturing system; controlling the effectively pressed fingerprint sensor to be in a working state and another fingerprint sensor other than the effectively pressed fingerprint sensor to be in a non-working state; and capturing fingerprint information of the user via the effectively pressed fingerprint sensor.

Abstract: The present application discloses a method for producing piperonal by using a recombinant engineered bacterium co-expressing trans-anethole oxygenase and formate dehydrogenase, and an engineered bacterium thereof, including constructing a formate dehydrogenase gene fdh and trans-anethole oxygenase gene tao or trans-anethole oxygenase mutant gene co-expression recombinant vector; inductively expressing recombinant genetically engineered bacterium; and producing piperonal by using the recombinant genetically engineered bacterium. 15.91 g/L of piperonal with a transformation rate of 79.55% and a time-space transformation rate of 2.27 g/L/h can be finally obtained during catalysis, and the yield is significantly improved compared with the existing piperonal, thereby being more conducive to the smooth realization of industrial production.

Abstract: Spike noise in a k-space dataset acquired in magnetic resonance imaging may be removed by generating a mask including a set of data points which constitute spike noise in the k-space dataset based on the acquired k-space dataset via a trained deep learning network, the mask corresponding to a location of the spike noise in the acquired k-space dataset. An image reconstructed based on the acquired k-space dataset and the mask may be displayed.

Abstract: An electronic device includes a first display module and a second display module. The first display module includes a first display surface. The second display module includes a second display surface. The first display surface and the second display surface face the same side of the electronic device. The second display module is slidably connected and stacked to the first display module, and an area of a display surface of the electronic device formed by the first display surface and the second display surface by adjusting overlapping degree between the second display module and the first display module.

Abstract: Provided are a method and a device for generating a thermodynamic diagram. The method includes: access data of identical display areas of a plurality of web pages is acquired, wherein the plurality of web pages are identical in page structure, and the identical display areas are areas having identical display content and identical display locations in the plurality of web pages; and the thermodynamic diagram of the identical display areas is generated according to the access data of the identical display areas of the plurality of web pages. The technical problem in the related art of impossibility in monitoring access data of identical display areas of the plurality of web pages via a single thermodynamic diagram is solved.

Abstract: This application discloses a reference signal transmission method and apparatus. The method includes: generating one or more OFDM symbols, where at least one OFDM symbol includes a PTRS resource block, the PTRS resource block includes at least two of three sequences: a PTRS sequence of Y elements, X elements after the PTRS sequence, and Z elements before the PTRS sequence, and the PTRS resource block occupies a plurality of consecutive resource elements REs, where X, Y, and Z are all integers; and sending the one or more OFDM symbols. According to the foregoing method and apparatus, inter-carrier interference is reduced, thereby improving spectral efficiency.

Abstract: Embodiments of the present disclosure disclose a fingerprint identification apparatus which is applied to an electronic device having a display screen, where the fingerprint identification apparatus includes an optical fingerprint sensor module configured to be disposed under the display screen so that a fingerprint capturing area of the optical fingerprint sensor module is at least partially located in a display area of the display screen, where the optical fingerprint sensor module includes a plurality of sensor chips, sensing areas of which correspond to a plurality of sub-areas in the fingerprint capturing area, respectively, and where each of the plurality of sensor chips is configured to detect an optical signal from above a sub-area corresponding to the each of the plurality of sensor chips. Technical solutions of embodiments of the present disclosure could improve user experience in the process of fingerprint identification, and meanwhile, improve security of fingerprint identification.

Abstract: This application provides a communication method, a terminal, and a network device. The communication method includes: repeating, by a first terminal, to-be-transmitted uplink control information for N times to obtain a first data segment, where N is a positive integer; determining, by the first terminal, an orthogonal cover code based on N; multiplying, by the first terminal, the first data segment by the orthogonal cover code to obtain a second data segment; and sending, by the first terminal, the second data segment. By using the communication method, the terminal, and the network device provided in this application, frequency diversity gains of the uplink control information can be increased, transmission flexibility of the uplink control information can be improved, and resource utilization can be increased.

Abstract: The present disclosure is directed to a method and device for generating anatomical labels for a physiological tree structure. The method may include receiving a 3D model and a 3D skeleton line of the physiological tree structure. The 3D model is restructured based on medical image data of the physiological tree structure acquired by an imaging device. The method further includes selecting at least one level from extracting geometrical features from a pool of selectable levels. The method also includes extracting, by a processor, geometrical features from the 3D model of the physiological tree structure along the 3D skeleton line at the selected at least one level. The method also includes generating, by the processor, anatomical labels for the physiological tree structure using a trained learning network based on the extracted geometrical features.

Abstract: Disclosed is a flexible screen support device for supporting a flexible screen, the support device comprising a support plate, a first telescopic bracket, several second telescopic brackets located at both sides of the first telescopic bracket, wherein the first telescopic bracket and the several second telescopic brackets couple the support plate and the flexible screen, and the flexible screen forms a curved surface by means of the first telescopic bracket and the several second telescopic brackets.