Abstract: A method for expanding functions of an ultrasonic imaging device, comprising: identifying and comparing functions of an integrated imaging device and a to-be-expanded ultrasonic imaging device; on the basis of a comparison result, configuring operating parameters and modes of the integrated imaging device and the to-be-expanded ultrasonic imaging device which serves as a host machine; enabling the integrated imaging device to be in communication with the host machine; and operating the integrated imaging device and displaying ultrasound data by means of a user terminal of the host machine. There is no need to make any changes to the hardware of the existing host machine, and new functions can be integrated into the existing device only by upgrading or making minor modifications to the software, such that a new application is derived from a traditional ultrasonic imaging device.

Abstract: A multi-frequency and multi-beam independent electrically adjustable antenna includes: a first electromagnetic lens, a second electromagnetic lens, a mounting plate, a reflecting plate, oscillator units, oscillator units, and phase shifters. The oscillator units have a higher operating frequency than the oscillator units. The first electromagnetic lens, the second electromagnetic lens, the reflecting plate and the mounting plate are fixed relative to each other. The oscillator units and the oscillator units are all mounted on a reflecting surface of the reflecting plate. The phase shifters are all mounted on the mounting plate. The present application is characterized by simple structure, scientific design, small size, flexible setting of beam direction and etc.

Abstract: A multi-frequency and multi-beam independent electrically adjustable antenna includes: a first electromagnetic lens, a second electromagnetic lens, a mounting plate, a reflecting plate, oscillator units, oscillator units, and phase shifters. The oscillator units have a higher operating frequency than the oscillator units. The first electromagnetic lens, the second electromagnetic lens, the reflecting plate and the mounting plate are fixed relative to each other. The oscillator units and the oscillator units are all mounted on a reflecting surface of the reflecting plate. The phase shifters are all mounted on the mounting plate. The present application is characterized by simple structure, scientific design, small size, flexible setting of beam direction and etc.

Abstract: The present invention relates to pesticide preparations and methods based on RNAi technology. The invention discloses target genes (fragments) useful in the control of Lepidoptera insects. Nucleic acid inhibitors or hosts expressing the nucleic acid inhibitors, based on the nucleic acid sequences of these target genes, can effectively kill Lepidoptera insects. The invention also discloses applications using the nucleic acid inhibitors or hosts expressing the nucleic acid inhibitors.

Abstract: Provided are an endo-xylanase and a coding gene and the use thereof. Also provided are an expression vector and a host cell containing the coding gene, a method for forming a simple sugar by using the xylanase, a xylanase mutant with an improved thermal stability and a method for improving the thermal stability of the xylanase.

Abstract: The present invention relates to pesticide preparations and methods based on RNAi technology. The invention discloses target genes (fragments) useful in the control of Lepidoptera insects. Nucleic acid inhibitors or hosts expressing the nucleic acid inhibitors, based on the nucleic acid sequences of these target genes, can effectively kill Lepidoptera insects. The invention also discloses applications using the nucleic acid inhibitors or hosts expressing the nucleic acid inhibitors.

Abstract: The present disclosure provides a method, device and system for implementing emergency call override service; wherein the implementation method comprise: a first application server (AS) on a called side receives an initial request message, carrying a service identifier indicating an emergency call override service, from a second AS on a calling side; and the first AS implements the emergency call override service according to the service identifier. In the IMS network architecture, by adding a service identifier, indicating emergency call override service, in an initial request message based on SIP, an AS network element on a called side can implement emergency call override service according to the service identifier, thereby solving the problem that the emergency call override service cannot be implemented in the current IMS network architecture.

Abstract: The present disclosure provides a method, device and system for implementing emergency call override service; wherein the implementation method comprise: a first application server (AS) on a called side receives an initial request message, carrying a service identifier indicating an emergency call override service, from a second AS on a calling side; and the first AS implements the emergency call override service according to the service identifier. In the IMS network architecture, by adding a service identifier, indicating emergency call override service, in an initial request message based on SIP, an AS network element on a called side can implement emergency call override service according to the service identifier, thereby solving the problem that the emergency call override service cannot be implemented in the current IMS network architecture.