Abstract: The present invention provides a trabecular porous tantalum dental implant and a preparation method thereof. The trabecular porous tantalum dental implant provided by the present invention has a cylindrical structure, and sequentially includes a top functional area, a middle functional area and a bottom functional area from top to bottom. The top functional area has a compact structure. The middle functional area has a porous bionic trabecular structure. The bottom functional area has a compact structure. The trabecular porous tantalum dental implant is integrally prepared through an additive manufacturing technology by using pure tantalum or medical tantalum alloy powder as a raw material. The trabecular porous tantalum dental implant provided by the present invention has a high friction force, strength and modulus close to those of human bones, an excellent bone ingrowth effect, high implantation stability and long service life.

Abstract: A lens-free microscopic imaging system (11), which is used to image microbeads (15) with pattern codes, includes an illumination system (11a) and an imaging system (11b). The illumination system (11a) includes an illumination light source (111) and an excitation light source (112). The imaging system (11b) includes an image sensor (113). The illumination light source (111) is used to emit illumination light to irradiate the microbeads (15), causing the irradiated microbeads (15) to be imaged on the image sensor. The excitation light source (112) is used to emit excitation light to excite the microbeads (15) to generate specific signals. The image sensor (113) is used to collect the images of the microbeads (15) and the specific signals to generate images. The imaging system (11) does not require a lens system. The present disclosure improves a detection efficiency of the microbeads (15).

Abstract: The present disclosure discloses a controlling device and an electronic atomization device, the controlling device includes an atomizing output circuit, a protecting circuit and a controller. The atomizing output circuit is configured to be electrically connected with the atomizer and apply a voltage to the atomizer. The protecting circuit includes a temperature sensitive unit, and the temperature sensitive unit is configured to sense a temperature of the atomizer. The controller is electrically connected with the atomizing output circuit, and configured to control the atomizing output circuit. The protecting circuit is configured to control the atomizing output circuit according to the temperature of the atomizer sensed by the temperature sensitive unit. In response to the temperature of the atomizer is higher than a predetermined value, the protecting circuit makes the electrical connection between the atomizing output circuit and the atomizer being disconnected.

Abstract: A stent graft comprises a plurality of wavy rings sequentially arranged in a spaced manner, and membranes fixed to the plurality of wavy rings, wherein the stent graft comprises, in a circumferential direction, at least one keel region and a non-keel region connected to the keel region, the keel region having an axial shortening rate that is less than that of the non-keel region, and the axial shortening rate of the keel region is 10-40%. The stent graft can be bent in all directions, and the keel region on the stent graft can provide a sufficient amount of an axial support force for the stent.

Abstract: Embodiments of this application provide a data processing method and apparatus, a computer device, and a readable storage medium.

Abstract: The present invention discloses a live stream screen display method performed by an electronic device. The method includes: obtaining a running screen of a target application displayed in a display screen of a target mobile terminal used by a live streamer account, and pushing the running screen to a user device corresponding to a user account watching the live streamer account as a live stream screen; and when the running screen of the target application in the display screen is affected by a running screen of a first application that does not belong to at least one preset target application, stopping pushing the running screen of the target application to the user device and pushing a live stream prompt screen to the user device, the live stream prompt screen indicating that the live streamer account has currently paused the live stream.

Abstract: An oscillator acceleration circuit, configured to accelerate the start-up of an oscillator, wherein the oscillator has an input terminal and an output terminal. The oscillator acceleration circuit includes an inverting amplifier, a feedback resistor and an acceleration circuit; the inverting amplifier has an input terminal and an output terminal correspondingly coupled to the input terminal and the output terminal of the oscillator. The feedback resistor is coupled between the input terminal and the output terminal of the oscillator, and the acceleration circuit is coupled between the input terminal and the output terminal of the oscillator. The acceleration circuit is configured to provide a transfer function, wherein the transfer function is the same as the transfer function provided by a resistor and a capacitor connected in parallel; wherein the resistance of the resistor is less than zero.

Abstract: A resolution test card for camera module includes a central region and a plurality of corner regions surrounding the central region. Both the central region and each corner region includes color blocks arranged in an array without gap. Each color block includes at least two straight edges. Any adjacent two color blocks sharing one straight edge in both the central region and each corner region have different colors. Any of the at least two straight edges is inclined relative to a first direction and a second direction perpendicular to the first direction; the at least two straight edges includes a first straight edge and a second straight edge perpendicular to each other.

Abstract: The present disclosure relates to an optimization method and system for hybrid FRP and steel bars. The optimization method includes: determining a cross-sectional bending bearing capacity, a maximum cross-sectional bending bearing capacity, and a minimum cross-sectional bending bearing capacity according to basic material parameters and a design value of a bending moment; determining whether the cross-sectional bending bearing capacity, the maximum cross-sectional bending bearing capacity, and the minimum cross-sectional bending bearing capacity meet a first preset condition; if yes, determining a maximum steel bar area according to the basic material parameters; determining a maximum ductility of a steel bar beam; determining whether the maximum ductility and the target ductility meet a second preset condition; if yes, determining a minimum steel bar area and a maximum FRP bar area according to the maximum steel bar area; and determining an actual steel bar area and an actual FRP bar area.

Abstract: The disclosure is suitable for the technical field of photo booth, and provides a photographic device holder convenient for angle adjustment and tablet computer replacement.

Abstract: A loudspeaker device may include a speaker component, a circuit housing configured to accommodate a control circuit, and a key module disposed on the core housing. The speaker component may include an earphone core and a core housing for accommodating the earphone core. The control circuit may drive the earphone core to vibrate to generate a sound, and the vibration of the earphone core may include at least two resonance peaks. The key module may include a key and an elastic bearing for supporting the key. The elastic bearing may include an integrally formed bearing body and a support column.