Abstract: Provided are a spot-size converter structure and a photonic device. The spot-size converter structure comprises: a first end face configured to be coupled to an integrated optical waveguide, and a second end face parallel to the first end face configured to be coupled to an optical fiber and. The spot-size converter structure comprises: a substrate; an isolation layer located on one side of the substrate; a waveguide layer located on one side of the isolation layer away from the substrate; and a covering layer located on one side of the waveguide layer away from the substrate and covering the waveguide layer.

Abstract: The present disclosure generally relates to methods and user interfaces for authentication, including providing authentication at a computer system in accordance with some embodiments.

Abstract: A frequency domain feedforward compensation method based on a power exponential method for a seismic simulation shaking table is provided. According to the method, a frequency domain amplitude transfer function of a system is identified, the frequency domain amplitude transfer function is modified by adjusting the power and limiting an amplitude, then an inverse frequency domain amplitude transfer function is obtained, an amplitude and a phase of a driving acceleration signal are computed, finally a time domain driving acceleration signal is obtained by using the Euler's formula for computation in a complex domain and conducting inverse Fourier transform, the shaking table is driven again to collect an acceleration signal output by a table top, whether the acceleration signal meets a shaking table test waveform use requirement is determined, a test is finished under the condition that the acceleration signal meets the shaking table test waveform use requirement.

Abstract: A method using an endogenous retrovirus (ERV) as a biomarker for detecting a degree of aging of an object or a cell, tissue or organ or isolated cell thereof. A method using an ERV as a target for treating, preventing or delaying aging of the subject or a cell, tissue or organ or isolated cell thereof.

Abstract: A display panel and a display device are provided. The present disclosure reduces the magnitude of an electric field formed between a second active layer and a first gate, and improves the stability of a thin film transistor (TFT) formed by the second active layer, the first gate, a second source, and a second drain. Accordingly, the present disclosure solves a problem in conventional oxide TFTs by preventing a TFT device formed by a bottom gate from having poor reliability.

Abstract: A dynamic balance type vertical vibration isolator includes slide blocks, balance springs, mass blocks, a fixed block, rotation shafts, stiffness-adjustable springs, etc. When an earthquake force is upward, the stiffness-adjustable springs are compressed, upward forces of the stiffness-adjustable springs are increased, meanwhile, the slide blocks and the mass blocks move away from the fixed block, the balance springs are stretched to generate pull forces, and the pull forces have vertically upward components, so as to reduce compression degrees of the stiffness-adjustable springs, and further to reduce the upward forces of the stiffness-adjustable springs.

Abstract: The present invention discloses an application of a substance that reduces the content or activity of KAT7 in preventing senescence and treating hepatic fibrosis. The present invention finds out that knockdown KAT7 genes have a definite effect on delaying senescence and treating hepatic fibrosis; and WM-3835 as a KAT7 inhibitor has a definite effect on delaying the senescence of hepatocytes. The present invention provides a new idea for developing genes for delaying senescence and treating hepatic fibrosis, and expands the options of clinical gene therapy and drug therapy.

Abstract: A dynamic balance type vertical vibration isolator includes slide blocks, balance springs, mass blocks, a fixed block, rotation shafts, stiffness-adjustable springs, etc. When an earthquake force is upward, the stiffness-adjustable springs are compressed, upward forces of the stiffness-adjustable springs are increased, meanwhile, the slide blocks and the mass blocks move away from the fixed block, the balance springs are stretched to generate pull forces, and the pull forces have vertically upward components, so as to reduce compression degrees of the stiffness-adjustable springs, and further to reduce the upward forces of the stiffness-adjustable springs.

Abstract: A frequency domain feedforward compensation method based on a power exponential method for a seismic simulation shaking table is provided. According to the method, a frequency domain amplitude transfer function of a system is identified, the frequency domain amplitude transfer function is modified by adjusting the power and limiting an amplitude, then an inverse frequency domain amplitude transfer function is obtained, an amplitude and a phase of a driving acceleration signal are computed, finally a time domain driving acceleration signal is obtained by using the Euler's formula for computation in a complex domain and conducting inverse Fourier transform, the shaking table is driven again to collect an acceleration signal output by a table top, whether the acceleration signal meets a shaking table test waveform use requirement is determined, a test is finished under the condition that the acceleration signal meets the shaking table test waveform use requirement.

Abstract: A fuel cell electrode with catalysts grown in situ on an ordered structure microporous layer and a method for preparing a membrane electrode assembly (MEA) are disclosed. The fuel cell electrode includes an electrode substrate layer, a hydrophobic layer, an ordered structure hydrophilic layer and catalysts. The hydrophobic layer is prepared on the electrode substrate layer. The ordered structure hydrophilic layer is prepared on the hydrophobic layer. The catalysts are uniformly distributed on the ordered structure hydrophilic layer.

Abstract: A display panel comprising a front surface area and a back surface area is provided. The back surface area is disposed on a back side of the front surface area through a bending area having a bending structure. The display panel comprises a substrate layer, a barrier layer, a first electrode layer, a first organic layer, and a second electrode layer. In the bending area, it can make the second electrode layer cause a less bending deformation by disposing openings respectively in the barrier layer, the first electrode layer, and the first organic layer and disposing the second electrode layer along a bevel of the opening of the first organic layer to the substrate layer, thereby reducing a bending stress of the second electrode layer in the bending area, reducing the risk of breaking the second electrode layer, and improving quality of display panels and the yield of the process.