Abstract: The method for determining sound channels is provided according to the embodiments of the present disclosure, the method includes: determining a number of speakers according to obtained output current and obtained output voltage; determining a system channel according to the number of speakers; determining a target sound effect parameter according to the number of speakers and the system channel, so that the multiple manufacturers can realize the high configuration, the medium configuration or the low configuration of the computer device by providing different number of speakers without setting sound effect parameter for computer device of each model, which reduces the design cost of the multiple manufacturer developing speaker systems, and saves manpower and research and development resources.

Abstract: The audio playing method is provided by embodiments of the present disclosure, applied to on-board audio system (including multiple speaker modules arranged at different positions in a car cabin, the audio playing method includes: obtaining an audio signal to be played; decomposing the audio signal to obtain multiple audio source signals of different categories, where each of the multiple sound source signals includes multiple sub sound source signals of a same category; establishing a route between all sub sound source signals and the multiple speaker modules according to a preset distribution principle indicating rules for playing different sub sound source signals by different speaker modules; and playing each of the multiple sub sound source signals by a corresponding speaker module according to the route. The present disclosure provides more accurate and immersive car multi-channel surround sound playback, which can effectively improve overall acoustic experience of the on-board audio system.

Abstract: The application provides a flexible display panel and an electronic device. The flexible display panel includes a plurality of pixel groups. The pixel groups include a plurality of pixels arranged in a first direction. The flexible display panel also includes: a substrate; a semiconductor layer; a gate electrode; a metal part; and a first insulating layer arranged on the metal part. The first insulating layer is provided with at least one first groove, and a position of the first groove corresponds to a position of a gap between two adjacent pixel groups.

Abstract: The present application provides an OLED display panel, which includes: a substrate layer, an array layer, a light-emitting functional layer, an encapsulation layer, a touch layer, a filter layer, and a protective layer, wherein the filter layer includes a black matrix layer and a color filter layer. There is no adhesive layer between the touch layer and the filter layer and between the filter layer and the protective layer. The OLED display panel according to the present application can realize lightness and thinness of the display panel and increase light extraction rate.

Abstract: An array substrate and a display device are provided. A functional layer of the array substrate is provided with a first opening in a bending region. A filling layer covering the functional layer fills the first opening and provides a second opening at a position of the first opening. A metal layer of the array substrate includes a plurality of metal traces, and the metal traces are bent toward an inside of the second opening in a region overlapping with the second opening.

Abstract: A flexible display panel and a rollable display device are provided. The flexible display panel includes: a base substrate having a display region, a pixel circuit disposed on the base substrate and located in the display region, and a first via hole defined in the display region. Wherein, at least one of the first via holes is provided between two adjacent pixel circuits.

Abstract: The present invention relates to the field of medical titanium alloy materials, and in particular, to a narrow-diameter high-strength implant-specific medical titanium alloy achieving immediate implant placement and a preparation method for the implant-specific medical titanium alloy. The medical titanium alloy is prepared from the following chemical components (by weight percentage), 14%-17% of Zr, 3.0%-10% of Cu, and the balance of Ti. The preparation method for the medical titanium alloy comprises: after cogging and forging and before rolling, performing heat preservation for 0.5-6 h at the temperature of 900-1200° C., and water cooling to the room temperature; and rolling at the temperature of 720-850° C., a strain rate being larger than 0.1 s-1, and a barstock obtained after rolling being used for subsequent implant processing.

Abstract: The application provides a flexible display panel and an electronic device. The flexible display panel includes a plurality of pixel groups. The pixel groups include a plurality of pixels arranged in a first direction. The flexible display panel also includes: a substrate; a semiconductor layer; a gate electrode; a metal part; and a first insulating layer arranged on the metal part. The first insulating layer is provided with at least one first groove, and a position of the first groove corresponds to a position of a gap between two adjacent pixel groups.

Abstract: A flexible display panel and a rollable display device are provided. The flexible display panel includes: a base substrate having a display region, a pixel circuit disposed on the base substrate and located in the display region, and a first via hole defined in the display region. Wherein, at least one of the first via holes is provided between two adjacent pixel circuits.

Abstract: An array substrate and a display device are provided. A functional layer of the array substrate is provided with a first opening in a bending region. A filling layer covering the functional layer fills the first opening and provides a second opening at a position of the first opening. A metal layer of the array substrate includes a plurality of metal traces, and the metal traces are bent toward an inside of the second opening in a region overlapping with the second opening.

Abstract: A pixel driving circuit, a method of driving thereof, and a display panel are provided. The pixel driving circuit includes a driving transistor and a compensation module, which at least includes different types of initialization transistors and compensation transistors. The compensation transistor transmits a data signal with a compensation threshold voltage to the gate of the driving transistor. The initialization transistor transmits the variable potential signal to the gate of the driving transistor to dynamically compensate the gate voltage of the driving transistor during the light-emitting phase, thereby improving the display effect.

Abstract: A pixel driving circuit, a method of driving thereof, and a display panel are provided. The pixel driving circuit includes a driving transistor and a compensation module, which at least includes different types of initialization transistors and compensation transistors. The compensation transistor transmits a data signal with a compensation threshold voltage to the gate of the driving transistor. The initialization transistor transmits the variable potential signal to the gate of the driving transistor to dynamically compensate the gate voltage of the driving transistor during the light-emitting phase, thereby improving the display effect.

Abstract: Electroporation is a technique in which an electrical field is applied to cells in order to increase the permeability of the cell membrane. This allows for chemicals, drugs, and/or macromolecules such as proteins and nucleic acids to be introduced into the cells. Embodiments relate to an electroporation apparatus. The electroporation apparatus comprises: a plurality of chambers configured to store a plurality of cells during an electroporation process; a plurality of electrodes configured to generate a plurality of electric fields within the plurality of chambers during the electroporation process, each electric field of the plurality of electric fields corresponding to one chamber of the plurality of chambers; a flow channel configured to transport the plurality cells during a cell collection process after the electroporation process; and a plurality of valves connecting the plurality of chambers to the flow channel.

Abstract: The present invention discloses a terahertz metamaterial. The terahertz metamaterial includes a substrate and an electromagnetic loss resonant ring structure disposed on the substrate, where an electromagnetic modulation function is realized on a terahertz band by adjusting different structural sizes and square resistance of the electromagnetic loss resonant ring structure. In the present invention, the electromagnetic loss resonant ring structure is disposed on the substrate, and the electromagnetic modulation function is realized on the terahertz band by adjusting the different structural sizes and square resistance of the electromagnetic loss resonant ring structure, thereby simplifying processing steps of a terahertz device, reducing a processing cost, and enabling a terahertz technology to be widely used in the field of electromagnetic communication.

Abstract: Embodiments of the present disclosure include compositions and methods related to certain siRNA compositions for the treatment of cancer. In specific embodiments, siRNAs are employed for treatment of cancer, including at least liver cancer. Therapeutic methods, compositions, and kits are encompassed in the disclosure.

Abstract: Embodiments of the present disclosure include compositions and methods related to certain siRNA compositions for the treatment of cancer. In specific embodiments, siRNAs are employed for treatment of cancer, including at least liver cancer. Therapeutic methods, compositions, and kits are encompassed in the disclosure.

Abstract: The present invention discloses a terahertz metamaterial. The terahertz metamaterial includes a substrate and an electromagnetic loss resonant ring structure disposed on the substrate, where an electromagnetic modulation function is realized on a terahertz band by adjusting different structural sizes and square resistance of the electromagnetic loss resonant ring structure. In the present invention, the electromagnetic loss resonant ring structure is disposed on the substrate, and the electromagnetic modulation function is realized on the terahertz band by adjusting the different structural sizes and square resistance of the electromagnetic loss resonant ring structure, thereby simplifying processing steps of a terahertz device, reducing a processing cost, and enabling a terahertz technology to be widely used in the field of electromagnetic communications.

Abstract: A gain-variable trans-impedance amplifier (TIA) in optical device is disclosed. The TIA has an improved dynamic range for receiving electrical signals and is configured to convert current signals from an avalanche photodiode (APD) to voltage signals. A resistor element is between the input and output terminals of the TIA, wherein the resistance of the resistor element can regulate the resistance and/or impedance value of the TIA, and a switch determines or controls the resistance of the resistor element. When the power of an optical signal received by the APD is higher than a predetermined value, the resistance becomes smaller and the gain of the TIA becomes greater. When the power of the optical signal is lower than the predetermined value, the resistance becomes greater. The gain of the TIA is automatically adjusted on the basis of the intensity of received optical signals to obtain a greater dynamic operational range.

Abstract: A gain-variable trans-impedance amplifier (TIA) in optical device is disclosed. The TIA has an improved dynamic range for receiving electrical signals and is configured to convert current signals from an avalanche photodiode (APD) to voltage signals. A resistor element is between the input and output terminals of the TIA, wherein the resistance of the resistor element can regulate the resistance and/or impedance value of the TIA, and a switch determines or controls the resistance of the resistor element. When the power of an optical signal received by the APD is higher than a predetermined value, the resistance becomes smaller and the gain of the TIA becomes greater. When the power of the optical signal is lower than the predetermined value, the resistance becomes greater. The gain of the TIA is automatically adjusted on the basis of the intensity of received optical signals to obtain a greater dynamic operational range.

Abstract: The present invention relates to improved methods for producing adenovirus compositions wherein host cells are grown in a bioreactor and purified by size partitioning purification to provide purified adenovirus compositions.