Abstract: An output device for outputting drive signals to a surgical instrument and a surgical system. The device includes an ultrasonic energy source and a high-frequency electric energy source located in the same casing, a signal port, an ultrasonic signal acquisition circuit, a high-frequency electric signal acquisition circuit, and a control module, and the control module is configured to obtain adjustment parameters based on the feedback signals, and control the ultrasonic energy source and the high-frequency electric energy source to output drive signals based on the adjustment parameters. The surgical instrument includes one or more of an ultrasonic-electric scalpel, an ultrasonic scalpel, a monopolar electrotome, and a bipolar electrotome.

Abstract: A preparation method of nitrogen-phosphorus doped porous carbon for oxygen reduction electrocatalysis within a wide pH range, which uses natural mineral-based carbon sources as raw material and uses a sequential nitrogen and phosphorus doping process for synthesizing in two paths. The method provided may be highly cost-effective, sustainable, and suitable for large-scale utilization.

Abstract: An unmanned aerial vehicle includes a fuselage body, a foldable wing assembly and a gear assembly. The foldable wing assembly, including a pair of opposing wing members, is coupled to the fuselage body and positionable in a stowed position and a deployed position. The gear assembly positions the wing members in a stowed position and a deployed position and include a support bracket assembly and a pair of opposing hinge members. The support bracket assembly is coupled to the fuselage body and including first and second support brackets forming a cavity therebetween and a pair of opposing hinge members. The pair of opposing hinge members are pivotably coupled to the support bracket assembly and positioned within the cavity. Each hinge member is coupled to a corresponding wing member and includes a set of gear teeth extending outwardly from an arcuate radially outer surface and coupled in a meshed arrangement.

Abstract: An unmanned aerial vehicle includes a fuselage body, a foldable wing assembly and a gear assembly. The foldable wing assembly, including a pair of opposing wing members, is coupled to the fuselage body and positionable in a stowed position and a deployed position. The gear assembly positions the wing members in a stowed position and a deployed position and include a support bracket assembly and a pair of opposing hinge members. The support bracket assembly is coupled to the fuselage body and including first and second support brackets forming a cavity therebetween and a pair of opposing hinge members. The pair of opposing hinge members are pivotably coupled to the support bracket assembly and positioned within the cavity. Each hinge member is coupled to a corresponding wing member and includes a set of gear teeth extending outwardly from an arcuate radially outer surface and coupled in a meshed arrangement.

Abstract: The present application is applicable to laser technology field and provides a dual-wavelength synchronous pulsed fiber laser based on rare earth ions co-doped fiber, which includes a continuous light LD pumping source, a rare earth ions co-doped fiber and two resonant cavities. Sensitizing ions in the rare earth ions co-doped fiber absorb the pumping light and radiate laser of one wavelength. Meanwhile, sensitized ions in the rare earth ions co-doped fiber radiate laser of another wavelength. Laser generated by sensitizing ions is subjected to Q-switching or mode locking with the saturable absorber inserted in the cavity to generate pulsed laser. Generation and partial reabsorption for the pulsed laser modulates gain of the laser radiated by sensitized ions periodically and generates synchronous pulsed laser, thereby implementing a dual-wavelength synchronous pulsed fiber laser.

Abstract: The present application is applicable to laser technology field and provides a dual-wavelength synchronous pulsed fiber laser based on rare earth ions co-doped fiber, which includes a continuous light LD pumping source, a rare earth ions co-doped fiber and two resonant cavities. Sensitizing ions in the rare earth ions co-doped fiber absorb the pumping light and radiate laser of one wavelength. Meanwhile, sensitized ions in the rare earth ions co-doped fiber radiate laser of another wavelength. Laser generated by sensitizing ions is subjected to Q-switching or mode locking with the saturable absorber inserted in the cavity to generate pulsed laser. Generation and partial reabsorption for the pulsed laser modulates gain of the laser radiated by sensitized ions periodically and generates synchronous pulsed laser, thereby implementing a dual-wavelength synchronous pulsed fiber laser.

Abstract: A high-efficiency clean burning method of a macromolecular substance, wherein the macromolecular substance comprises biomass and solid organic waste; the method comprises the following steps: generating a first gaseous substance and a red-hot carbon residue layer from biomass carbon residue or charcoal or coke or a mixture thereof by anoxic combustion; leading the heat generated by anoxic combustion to the macromolecular substance, preheating and drying the macromolecular substance and carrying out pyrolysis gasification, so as to generate a second gaseous substance; taking red-hot carbon residue as a pyrolysis catalyst, leading the second gaseous substance to the red-hot carbon residue layer to carry out oxygen catalytic cracking, so as to generate a third gaseous substance; leading the third gaseous substance and the first gaseous substance to an oxygen-enriched combustion zone in a heat preservation manner to carry out oxygen-enriched combustion, so as to achieve substantial complete combustion of all gasi

Abstract: The present invention relates to the field of laser frequency-mixing technologies, and in particular, to an all-fiber laser frequency mixer and a frequency-mixing fiber laser thereof. In the all-fiber laser frequency mixer and the frequency-mixing fiber laser thereof, a graded index fiber coupling technology is used to implement an all-fiber laser frequency mixer, and the all-fiber laser frequency mixer is further combined with a fiber laser to implement an all-fiber frequency-mixing fiber laser. The apparatus can implement all-fiber frequency doubling, sum frequency or difference frequency on any one or two of the following linearly polarized narrow linewidth fiber lasers: a 1 ?m fiber laser, a 1.5 ?m fiber laser, a 1.9 ?m thulium-doped fiber laser, a 2 ?m thulium holmium co-doped fiber laser, a Raman fiber laser, and a frequency-mixing fiber laser and implement an all-fiber fiber laser covering ultraviolet, visible, near-infrared, mid-infrared bands.

Abstract: The present invention relates to the field of laser frequency-mixing technologies, and in particular, to an all-fiber laser frequency mixer and a frequency-mixing fiber laser thereof. In the all-fiber laser frequency mixer and the frequency-mixing fiber laser thereof, a graded index fiber coupling technology is used to implement an all-fiber laser frequency mixer, and the all-fiber laser frequency mixer is further combined with a fiber laser to implement an all-fiber frequency-mixing fiber laser. The apparatus can implement all-fiber frequency doubling, sum frequency or difference frequency on any one or two of the following linearly polarized narrow linewidth fiber lasers: a 1 ?m fiber laser, a 1.5 ?m fiber laser, a 1.9 ?m thulium-doped fiber laser, a 2 ?m thulium holmium co-doped fiber laser, a Raman fiber laser, and a frequency-mixing fiber laser and implement an all-fiber fiber laser covering ultraviolet, visible, near-infrared, mid-infrared bands.

Abstract: A high-efficiency clean burning method of a macromolecular substance, wherein the macromolecular substance comprises biomass and solid organic waste; the method comprises the following steps: generating a first gaseous substance and a red-hot carbon residue layer from biomass carbon residue or charcoal or coke or a mixture thereof by anoxic combustion; leading the heat generated by anoxic combustion to the macromolecular substance, preheating and drying the macromolecular substance and carrying out pyrolysis gasification, so as to generate a second gaseous substance; taking red-hot carbon residue as a pyrolysis catalyst, leading the second gaseous substance to the red-hot carbon residue layer to carry out oxygen catalytic cracking, so as to generate a third gaseous substance; leading the third gaseous substance and the first gaseous substance to an oxygen-enriched combustion zone in a heat preservation manner to carry out oxygen-enriched combustion, so as to achieve substantial complete combustion of all gasi

Abstract: A method for designing uniform illumination reflector, which has a light entering opening and a light emitting opening, includes the steps of: determining a light source, the diameter of an illuminated surface and the distance between the light source and the illuminated surface, determining the maximum emitted half-angle of the reflector, and determining an aperture of the light entering opening; in a two-dimensional plane, forming multiple line segments by using one end point of the light entering opening as the start point, determining the slope and the end point for each line segment using the reverse tracing method and the iterative method and forming one curved line by the multiple line segments; and rotating the generating line around the axis of the reflector to obtain the reflective curved surface of the inner wall of the reflector.

Abstract: A method of generating an area light source by scanning, an area light source and a laser projection television using the same. The method comprising the steps of illuminating a light beam onto a rotating polygon mirror rotating at a high speed on which each plane mirror has a predetermining slope angle with respect to it own rotating axis, and generating a 2-D scanning area. The invention provides a scanning area light source having uniform brightness, non-interference and high efficiency by uniform illumination of the spatial light modulator in a video display. Its scanning characteristics are that each of scanning points can cover many pixels, and that the adjacent scanning lines overlap a relatively large part to ensure uniform luminance of the scanning plane.

Abstract: A method of generating an area light source by scanning, an area light source and a laser projection television using the same. The method comprising the steps of illuminating a light beam onto a rotating polygon mirror rotating at a high speed on which each plane mirror has a predetermining slope angle with respect to it own rotating axis, and generating a 2-D scanning area. The invention provides a scanning area light source having uniform brightness, non-interference and high efficiency by uniform illumination of the spatial light modulator in a video display. Its scanning characteristics are that each of scanning points can cover many pixels, and that the adjacent scanning lines overlap a relatively large part to ensure uniform luminance of the scanning plane.