Abstract: The present invention relates to the technical field of agricultural pest control, and more particularly, to the application of pyrrole-2-carboxaldehyde in controlling plant root-knot nematodes. Pyrrole-2-carboxaldehyde and agronomically acceptable salts thereof have strong insecticidal activity against root-knot nematodes. Pyrrole-2-carbaldehyde shows the advantages of high efficiency, low toxicity and low residue compared to other insecticides and is more compatible with the environment, which meets the needs of green plant protection and sustainable agricultural production and development.

Abstract: The present invention discloses a smart terminal and a smart wrist watch.

Abstract: Disclosed are a wearable device and a smart watch. A printed circuit board (PCB) is provided in the wearable device. An antenna and an extension component for extending a reference ground of the antenna are assembled on the PCB board, the extension component being disposed outside the PCB board, and being connected to the PCB board by using a metal connector. A first connection end of the metal connector is connected to the PCB board, and a second connection end of the metal connector is connected to the extension component. The technical solutions provided in the present invention can overcome the shortcomings of low transmit power of an antenna and poor receiving sensitivity of the antenna in a current wearable device.

Abstract: A glue coating device for laying stealth optical cables, comprising an outer housing and an inner housing sheathed inside the outer housing. A glue chamber is provided inside the inner housing. One end of the outer housing is a mounting end and the other end is a glue injection end by which the device is mounted on a glue injection gun. A glue injection zone is provided at an end surface of the glue injection end and runs through the glue chamber. The glue injection end has a front preprocessor which comprises two separating and guiding sides forming an angle of 120° therebetween and protruding from the outer housing. A cable positioning groove is provided on the end surface of the outer housing. The device is simple in structure, convenient for constructing, and provides quantitative glue injection and has a favorable coating effect.

Abstract: A method and device for activating a preset function in a wearable electronic terminal are disclosed. The method comprises: setting a quick activation command corresponding to a preset function of the wearable electronic terminal in the electronic terminal, so that the quick activation command responds to the touching operation of predetermined type by the user on the touch screen of the electronic terminal; when the electronic terminal is in a working state, detecting a touching event received by the touch screen and confirming that a touching operation of predetermined type happened; and invoking the quick activation command corresponding to the touching operation of predetermined type so as to activate the corresponding preset function. The technical solutions of the present disclosure can quickly activate the preset function simply by touching operations of predetermined type on the touch screen of the electronic terminal.

Abstract: The present disclosure discloses a smart wearable device and an information input method thereof.

Abstract: The present invention discloses an electronic apparatus and an antenna setting method for electronic apparatus, wherein the electronic apparatus comprises a metal appearance surface; the metal appearance surface consists of a plurality of mutually separated metal pieces; an insulating piece is provided between the two adjacent metal pieces; each metal piece is provided thereon with one or more antennas, each antenna is connected with a communication module on a master chip of the electronic apparatus.

Abstract: The present invention discloses a smart terminal and a smart wrist watch.

Abstract: Disclosed are a wearable device and a smart watch. A printed circuit board (PCB) is provided in the wearable device. An antenna and an extension component for extending a reference ground of the antenna are assembled on the PCB board, the extension component being disposed outside the PCB board, and being connected to the PCB board by using a metal connector. A first connection end of the metal connector is connected to the PCB board, and a second connection end of the metal connector is connected to the extension component. The technical solutions provided in the present invention can overcome the shortcomings of low transmit power of an antenna and poor receiving sensitivity of the antenna in a current wearable device.

Abstract: The invention provides a glue coating device for laying stealth optical cables, comprising an outer housing and an inner housing sheathed inside the outer housing. A glue chamber is provided inside the inner housing. One end of the outer housing is a mounting end and the other end is a glue injection end by which the device is mounted on a glue injection gun. A glue injection zone is provided at an end surface of the glue injection end and runs through the glue chamber. The glue injection end has a front preprocessor which comprises two separating and guiding sides forming an angle of 120° therebetween and protruding from the outer housing. A cable positioning groove is provided on the end surface of the outer housing. The device is simple in structure, convenient for constructing, and provides quantitative glue injection and has a favorable coating effect.

Abstract: The present invention discloses an electronic apparatus and an antenna setting method for electronic apparatus, wherein the electronic apparatus comprises a metal appearance surface; the metal appearance surface consists of a plurality of mutually separated metal pieces; an insulating piece is provided between the two adjacent metal pieces; each metal piece is provided thereon with one or more antennas, each antenna is connected with a communication module on a master chip of the electronic apparatus.

Abstract: The present disclosure discloses a method and system for access control monitoring.

Abstract: The present disclosure discloses a method and system for access control monitoring.

Abstract: A method and device for activating a preset function in a wearable electronic terminal are disclosed. The method comprises: setting a quick activation command corresponding to a preset function of the wearable electronic terminal in the electronic terminal, so that the quick activation command responds to the touching operation of predetermined type by the user on the touch screen of the electronic terminal; when the electronic terminal is in a working state, detecting a touching event received by the touch screen and confirming that a touching operation of predetermined type happened; and invoking the quick activation command corresponding to the touching operation of predetermined type so as to activate the corresponding preset function. The technical solutions of the present disclosure can quickly activate the preset function simply by touching operations of predetermined type on the touch screen of the electronic terminal.

Abstract: The present disclosure discloses a smart wearable device and an information input method thereof.

Abstract: Disclosed is a method of determining causes of intrinsic oscillations in a double-barrier quantum-well intrinsic oscillator comprising developing an emitter quantum-well (EQW) from a double-barrier quantum-well system (DBQWS); coupling the EQW to a main quantum-well (MQW), wherein the MQW is defined by double-barrier heterostructures of a resonant tunneling diode; using energy subband coupling to induce quantum-based fluctuations in the EQW; creating intrinsic oscillations in electron density and electron current in the DBQWS; forming a distinct subband structure based on the intrinsic oscillations; and identifying a THz-frequency signal source based on the quantum-based fluctuations, wherein the intrinsic oscillations comprise maximum subband coherence, partial subband coherence, and minimum subband coherence, wherein the energy subband is a quantum mechanical energy subband, wherein the intrinsic oscillations occur proximate to a bias voltage point in the range of 0.224 V and 0.