Abstract: Disclosed is a permanent magnet rotor magnetic coupling based on a double-sided stepped structure and a three-dimensional Halbach magnetic pole arrangement, including a conductor outer rotor assembly (1), and a magnet inner rotor assembly (2). The conductor outer rotor assembly (1) includes a right outer rotor assembly (3), and a bearing connected to the right outer rotor assembly (3). The right outer rotor assembly (3) includes a right conductor yoke (301), and multiple conductive rings. The magnet inner rotor assembly (2) includes a right inner rotor assembly (4), and a bearing connected to the right inner rotor assembly (4). The right inner rotor assembly (4) includes a right magnet yoke (401), and multiple magnetic rings. A stepped structure adopted by the present disclosure can make magnetic blocks have multiple polarity arrangement modes, thereby generating multiple different spatial magnetic field distributions, which are used in scenes with different power transfer requirements.

Abstract: Disclosed is a transient-state THz spectrometer applied to cells and biological macromolecules, including a femtosecond laser amplifier. A femtosecond laser output by the femtosecond laser amplifier is divided into two beams of pump light and probe light after passing through a beam splitter of which a transmission-reflection ratio is 7:3, the pump light is focused to irradiate a gap between electrodes of a nonlinear photoconductive antenna and emit a terahertz wave after successively passing through a half wave plate, a silver-plated reflector and a first lens, the terahertz wave forms a terahertz wave collineation after successively passing through a second lens, a slab waveguide, a third lens and an ITO film, the terahertz wave collineation and the probe light form a probe light collineation of wavefront tilt which is perpendicularly incident on a ZnTe crystal and detected and recorded by using a CCD camera.

Abstract: Disclosed is a transient-state THz spectrometer applied to cells and biological macromolecules, including a femtosecond laser amplifier. A femtosecond laser output by the femtosecond laser amplifier is divided into two beams of pump light and probe light after passing through a beam splitter of which a transmission-reflection ratio is 7:3, the pump light is focused to irradiate a gap between electrodes of a nonlinear photoconductive antenna and emit a terahertz wave after successively passing through a half wave plate, a silver-plated reflector and a first lens, the terahertz wave forms a terahertz wave collineation after successively passing through a second lens, a slab waveguide, a third lens and an ITO film, the terahertz wave collineation and the probe light form a probe light collineation of wavefront tilt which is perpendicularly incident on a ZnTe crystal and detected and recorded by using a CCD camera.

Abstract: Disclosed is a hardware-based protection group switching method and optical communication equipment.

Abstract: Disclosed is a home bus system (HBS) circuit, applicable to home bus (HB) communication implemented using a Microchip chip. The circuit includes the Microchip chip, an HBS communication chip, a resistor, a capacitor, and a transistor, the Microchip chip includes a universal asynchronous receiver/transmitter (UART) input pin and a serial peripheral interface (SPI) output pin, and the HBS communication chip includes an input pin. The transistor has a base coupled to the SPI output pin and a first end of the capacitor, a collector coupled to a first end of the resistor and the input pin of the HBS communication chip, and an emitter grounded, wherein a second end of the resistor is coupled to a power supply, and a second end of the capacitor is grounded.

Abstract: Disclosed is a home bus system (HBS) circuit, applicable to home bus (HB) communication implemented using a Microchip chip. The circuit includes the Microchip chip, an HBS communication chip, a resistor, a capacitor, and a triode, the Microchip chip includes a universal asynchronous receiver/transmitter (UART) input pin and a serial peripheral interface (SPI) output pin, and the HBS communication chip includes an input pin. The triode has a base coupled to the SPI output pin and a first end of the capacitor, a collector coupled to a first end of the resistor and the input pin of the HBS communication chip, and an emitter grounded, wherein a second end of the resistor is coupled to a power supply, and a second end of the capacitor is grounded.

Abstract: The present disclosure provides a protection group superposition switching method, a control apparatus, and an optical communication device. Multiple protection state machines are implemented by using a field programmable gate array (FPGA). Each protection state machine independently performs an automatic protection switching (APS) protocol operation for at least one protection group that is pre-associated with the protection state machine. At least one protection status table for recording a status of each protection group is updated according to a result of the APS protocol operation, and a cross-connection table for traffic cross-connection between communication units is updated according to the protection status table; the updated cross-connection table is configured into a cross-connection chip, so that the cross-connection chip performs traffic cross-connection according to the updated cross-connection table.

Abstract: A method and a device for each network element node in a transoceanic multiplex section shared protection ring to automatically discover a cross-node service topology. According to the present invention, the method for automatically discovering a cross-node service topology comprises the following steps: at the node, generating a message containing service identification information of the node, the service identification information being used for identifying a service flow configured for a protection group; sending the message containing the service identification information through the transoceanic multiplex section shared protection ring; and at at least one of other nodes, determining a cross-node service crossing topology according to the message containing the service identification information.

Abstract: The present disclosure provides a protection group superposition switching method, a control apparatus, and an optical communication device. Multiple protection state machines are implemented by using a field programmable gate array (FPGA). Each protection state machine independently performs an automatic protection switching (APS) protocol operation for at least one protection group that is pre-associated with the protection state machine. At least one protection status table for recording a status of each protection group is updated according to a result of the APS protocol operation, and a cross-connection table for traffic cross-connection between communication units is updated according to the protection status table; the updated cross-connection table is configured into a cross-connection chip, so that the cross-connection chip performs traffic cross-connection according to the updated cross-connection table.

Abstract: Disclosed is a hardware-based protection group switching method and optical communication equipment.

Abstract: A method and a device for each network element node in a transoceanic multiplex section shared protection ring to automatically discover a cross-node service topology. According to the present invention, the method for automatically discovering a cross-node service topology comprises the following steps: at the node, generating a message containing service identification information of the node, the service identification information being used for identifying a service flow configured for a protection group; sending the message containing the service identification information through the transoceanic multiplex section shared protection ring; and at at least one of other nodes, determining a cross-node service crossing topology according to the message containing the service identification information.

Abstract: A shower head with rotary bottom cover assembly includes a water passage member with a third inlet and an outlet chamber communicating with each other, a rotator mounted inside the outlet chamber and having a first rotator inlet, a first outlet and a diverting channel, a rotator cover, a bottom cover assembly. The first rotator inlet is mounted inside the third inlet of the water passage member and communicates with a center portion of the diverting channel. The diverting channel has two second outlets formed on two ends thereof and oppositely located. The rotator cover hermetically covers and seals the outlet chamber and has a hole for an outlet hose to be mounted through. A top of the outlet hose is connected with the center portion of the diverting channel. A bottom of the outlet hose engages the bottom cover assembly. The water head is structurally simple and has massaging effect.

Abstract: A hollow magnetic fixing structure of a showering device, comprising: a column shower; a connection lower main body, connected to a wall or a shower component; a connection upper main body, disposed under the connection lower main body, and having insertion holes provided at its center; a main body cover, disposed in the insertion hole, and a through hole being provided on the main body cover, to facilitate the column shower to pass through, a diameter of the through hole is greater than an outer diameter of the column shower, an outer magnetic body, disposed between the main body cover and the insertion hole; and an inner magnetic body, disposed in a center of the column shower, having its magnetism opposite to that of the outer magnetic body.

Abstract: A method for generating a search result includes: receiving, by an information search system, a search request; obtaining, by searching, a plurality of pieces of matching information that match the search request; obtaining a respective amount of user response associated with each of the plurality of pieces of matching information and further obtaining a total amount of user response associated with a respective categories to which each of the plurality of pieces of matching information belongs; and ranking the plurality of pieces of information to generate a search result based on the total amount of user response associated with the respective category to which each of the plurality of pieces of matching information belongs. By using the above technical scheme, a result of more rational ranking of matching information can be displayed to a user when the user performs a search, thus improving experience of the user.

Abstract: A shower head with rotary bottom cover assembly includes a water passage member with a third inlet and an outlet chamber communicating with each other, a rotator mounted inside the outlet chamber and having a first rotator inlet, a first outlet and a diverting channel, a rotator cover, a bottom cover assembly. The first rotator inlet is mounted inside the third inlet of the water passage member and communicates with a center portion of the diverting channel. The diverting channel has two second outlets formed on two ends thereof and oppositely located. The rotator cover hermetically covers and seals the outlet chamber and has a hole for an outlet hose to be mounted through. A top of the outlet hose is connected with the center portion of the diverting channel. A bottom of the outlet hose engages the bottom cover assembly. The water head is structurally simple and has massaging effect.

Abstract: A search method is disclosed. In the method, a data rewriting system obtains, from a database, one or more search term candidates that are relevant to a present search term. The data rewriting system retrieves properties of the present search term and the one or more search term candidates, where the properties describe respective matching results of the present search term and the one or more search term candidates. Based on the matching results, the data rewriting system determines whether the present search term needs to be rewritten, and rewrites the present search term based on the matching results to provide a rewritten present search term in response to determining that the present search term needs to be rewritten. A search engine performs a search based on the rewritten present search term.

Abstract: An iced conductor sleet jump simulation testing method is disclosed, where after an initial tension of a conductor and an initial displacement of the conductor in a static state are obtained by using a combination of a given meteorological condition and a typical meteorological condition, displacement and tension states of the conductor in a dynamic state at each discrete moment can be accurately and reliably predicted until a specific time arrives.

Abstract: A water outlet valve core of a wall mounted shower head and a water output device each includes an inlet, two outlets, an annular channel, and a flow channel. Water enters the water outlet valve core through the inlet, and most of the water passes through the flow channel and flows out of the outlets. The remaining water passing through the flow channel then enters the annular channel, and is mixed with the most of the water out of the flow channel to flow out of the outlets. Based on concepts of jet switching within a same element, strong water flow and weak water flow switch alternatively to implement the effect of hydro massage, such that conventional rotor-type shower heads won't be easily stuck or worn out to cause loss of massage functions.