Abstract: The present disclosure relates to a chimeric influenza virus hemagglutinin (HA) polypeptide, comprising one or more stem domain sequence, each having at least 60% homology with a stem domain consensus sequence of H1 subtype HA (H1 HA) and/or H5 subtype HA (H5 HA), fused with one or more globular head domain sequence, each having at least 60% homology with a globular head domain consensus sequence of H1 subtype HA (H1 HA) or H5 subtype HA (H5 HA).

Abstract: The present disclosure relates to a chimeric influenza virus hemagglutinin (HA) polypeptide, comprising one or more stem domain sequence, each having at least 60% homology with a stem domain consensus sequence of H1 subtype HA (H1 HA) and/or H5 subtype HA (H5 HA), fused with one or more globular head domain sequence, each having at least 60% homology with a globular head domain consensus sequence of H1 subtype HA (H1 HA) or H5 subtype HA (H5 HA).

Abstract: A single fire-wire bi-directional power fetching and dimmer control system, comprising: a dimmer circuit, that includes at least a dimmer driver and two connected bi-directional power electronic components; a single fire-wire bi-directional power fetching module, connected in series between the two bi-directional power electronic components, to perform single fire-wire power fetching when the dimmer circuit is conducting; a high side buck, connected in parallel to the dimmer circuit; and a DC to DC converter, with input end of the converter used for fetching power connected to the single fire-wire bi-directional power fetching module, and the high side buck; and with output end of the converter used for supplying power connected to the dimmer driver of the dimmer circuit. As such, single fire-wire bi-directional dimming can be performed, to raise significantly its range of control, while fetching enough power to drive Wi-Fi and 5G communication.

Abstract: A single live-wire power fetching system capable of preventing flickering and enhancing power fetching efficiency, that includes a single live-wire power fetching switch module, a High Side Buck ac/dc, and a multifunction rectifying unit. The single live-wire power fetching module is provided with a live-wire input end and a live-wire output end, connected in series to a single live-wire to perform single live-wire power fetching, and to supply power for normal operation of circuits in the single live-wire power fetching switch module. The High Side Buck ac/dc is used to provide part of power for single live-wire power fetching, with input end of the High Side Buck ac/dc connected in parallel to the single live-wire power fetching switch module through multifunction rectifying unit, and with output end of the High Side Buck ac/dc connected to the single live-wire power fetching switch module to provide power.

Abstract: A single fire-wire phase-front dynamic AC power fetching module, comprising: two series-connected type synchronous power fetching circuits connected in parallel, and an electronic switch connected thereto, one series-connected type synchronous power fetching circuit is used to perform positive phase AC power fetching, while the other series-connected type synchronous power fetching circuit is used to perform negative phase AC power fetching. The electronic switch is formed by a relay or a silicon control crystal (TRIAC) controlled by an MCU microprocessor. As such, through adopting bi-directional dynamic full-bridge type power fetching, for a single fire wire, it is able to perform power fetching twice in a cycle. The duration of power fetching can be regulated automatically depending on the load, to compensate for the power, and supply it to an outside circuit as the basic power supply.

Abstract: A middle phase power-fetching type phase front/phase tail synchronized modulation circuit, comprising: a power supply unit, that is used to fetch power from the middle phase of an ordinary AC voltage waveform, and supplies it to a phase front/phase tail modulation unit as a normal operating voltage after rectification; and a phase front/phase tail modulation unit, it includes an MCU microcomputer, to control a driving circuit to turn-on, and control synchronously at least two bi-directional electronic power element, to generate a phase front/phase tail turn-on modulation signal. As such, while performing synchronous modulation from phase middle, phase front/phase tail can be retracted inward or expanded outward at the same time, so that phase front/phase tail turn-on output voltage average values complement each other, hereby achieving stable and modulated power supply.

Abstract: A middle phase power-fetching type phase front/phase tail synchronized modulation circuit, comprising: a power supply unit, that is used to fetch power from the middle phase of an ordinary AC voltage waveform, and supplies it to a phase front/phase tail modulation unit as a normal operating voltage after rectification; and a phase front/phase tail modulation unit, it includes an MCU microcomputer, to control a driving circuit to turn-on, and control synchronously at least two bi-directional electronic power element, to generate a phase front/phase tail turn-on modulation signal. As such, while performing synchronous modulation from phase middle, phase front/phase tail can be retracted inward or expanded outward at the same time, so that phase front/phase tail turn-on output voltage average values complement each other, hereby achieving stable and modulated power supply.

Abstract: A non-contact touch switch comprises an outer cover installed at an outlet of an AC power source, a microcomputer control circuit installed on an inner side of the outer cover, a medium transferring interface installed on the outer cover and connecting with the microcomputer control circuit, a start switch with one end thereof being connected with the microcomputer control circuit and another end thereof being disposed with a control contact connected to the power source so as to control electrifying time of an electrical device connected therewith, and a power interceptor disposed between the microcomputer control circuit and the start switch capable of directly intercepting, rectifying, and stabilizing an external power supply as a power supply available for a normal operation of an internal circuit.

Abstract: An improved structure of serial synchronous chopper mainly includes an external synchronous rectifier power supply unit, an internal synchronous rectifier power supply unit, a synchronous voltage-stabilized control unit, an integrated driving circuit unit, a synchronous load feedback control unit, and a synchronous integrated chopping unit. While operating, the structure is serially connected to a live wire of a power supply to periodically perform synchronous chopping so as to provide a synchronous DC voltage-stabilized output as a fundamental power supply in connection with an external circuit.

Abstract: An improved structure of serial synchronous chopper mainly includes an external synchronous rectifier power supply unit, an internal synchronous rectifier power supply unit, a synchronous voltage-stabilized control unit, an integrated driving circuit unit, a synchronous load feedback control unit, and a synchronous integrated chopping unit. While operating, the structure is serially connected to a live wire of a power supply to periodically perform synchronous chopping so as to provide a synchronous DC voltage-stabilized output as a fundamental power supply in connection with an external circuit.

Abstract: A non-contact touch switch allows a control circuit to do an accurate change-over start to AC switch power supply by using a human body advanced medium induction manner and comprises an outer cover, correspondingly installed at an outlet of a switch power cord; a microcomputer control circuit, installed on an inner side of the outer cover; a medium transferring interface, installed on the outer cover and having an interconnection with the microcomputer control circuit; a start switch, one end thereof being connected with the microcomputer control circuit and another end thereof being disposed with a control contact connected with an AC switch power cord so as to control an electrification time of an electric facility connected therewith afterwards; and a power interceptor, connected between the microcomputer control circuit and the control contact of the start switch, capable of directly intercepting a power supply from a general public power through the switch power cord to act as a power supply of a normal

Abstract: An eyeglasses elastic temple has a first lengthwise hole and a second lengthwise hole in a front portion, a connector connected respectively between one of two ends of a frame of the eyeglasses having a rear portion fitting in the first lengthwise hole and female threads in the rear portion. A spring and a connect rod having front male threads extend in the spring put in the first lengthwise hole, and a clamp bar has its front end fitting tightly in the second hole to keep the connect rod and the spring in place, with the male threads engaging the female threads. Then the temple can be collapsed to bend inward when the eyeglasses is not used, with the clamp bar clamping on a pocket of clothes to prevent the eyeglasses from falling off.