Abstract: Disclosed is a virtual haptic assembly and a virtual haptic system. The virtual haptic assembly includes a display screen; an actuator on a light emitting side of the display screen, where the actuator includes a touch panel and a piezoelectric sensor, the touch panel includes a touch area and a non-touch area on at least one side of the touch area, the piezoelectric sensor is located on one side of the touch panel facing the display screen, and the piezoelectric sensor is configured to drive the touch panel to vibrate to form haptic feedback in response to interactive information of a user; and a first cushion, fixed between the display screen and the actuator, where an orthographic projection of the first cushion on the touch panel is located in the non-touch area.

Abstract: In some embodiments, an image is received. The method includes analyzing the image based on a plurality of anchor shapes to generate respective outputs for anchor shapes in the plurality of anchor shapes. The output rates a cropping of the image using a respective anchor shape. The method analyzes respective outputs for the anchor shapes in the plurality of anchor shapes to select an anchor shape. The image is cropped using the anchor shape.

Abstract: The invention provides a process for refining bio-based propylene glycol, wherein impurities having boiling points close to that of propylene glycol are separated. In this process, C5-C20 oleophilic alcohol compounds, C5-C20 alkanes and/or C4-C20 oleophilic ketone compounds are subjected to azeotropism as an azeotropic solvent together with the bio-based propylene glycol to obtain an azeotrope containing propylene glycol. Then the azeotropic solvent in the azeotrope is separated to obtain a crude propylene glycol which is further purified to obtain propylene glycol.

Abstract: Disclosed are a quantum dot material, a quantum dot light emitting device, a display apparatus and a manufacturing method. The quantum dot material includes: a quantum dot, an anionic ligand, and a linking group linking the quantum dot and the anionic ligand, wherein the anionic ligand is configured to bind to a ring molecule by electrostatic force.

Abstract: The disclosure provides a micro-electromechanical system switch and a communication device. The micro-electromechanical system switch includes: a substrate; a DC bias line, arranged on one side of the substrate; a first signal transmission line and a second signal transmission line, arranged on the same side of the substrate as the DC bias line; a cantilever beam, arranged on a side, away from the substrate, of a layer on which the first signal transmission line is located; and a fixing structure, arranged on the side, away from the substrate, of the layer on which the first signal transmission line is located and not in contact with the first signal transmission line, where the fixing structure connects the free end and the substrate.

Abstract: The provided is a remote sensing observation equipment, including a base and a remote sensing observation instrument, the remote sensing observation instrument is located above the base, a lifting mechanism is arranged between the remote sensing observation instrument and the base, a sliding groove is arranged on both sides of the middle part of the base, both of the sliding grooves are slidingly assembled with sliding seats, both of the sliding seats are fixed with a first protective shell, the ends of the two first protective shells are abut against each other and located outside the remote sensing observation instrument, a fixed mechanism is arranged between the sliding seat and the sliding groove; protecting the remote sensing observation instrument through the first protective shell and the second protective shell being closed to each other, avoids the instrument being damaged by collision, and prolongs the service life of the instrument.

Abstract: In some embodiments, a method calculates a reward function for an adaptive bitrate function that is based on a bandwidth and profiles in a profile ladder for a current segment of content. The reward function calculates a first profile should be selected for the current segment and, based on a previously selected profile from a prior segment and profiles in the profile ladder, changes the first profile to a second profile from the profile ladder. The method requests the second profile from the profile ladder for the current segment.

Abstract: In some embodiments, a method generates a first representation of a first relationship between bitrate and quality based on first features of a first portion of a video. The first representation is analyzed to determine a first list of potential bitrates for the first portion of video. The method analyzes potential bitrates and quality associated with the respective potential bitrates to refine the first list of potential bitrates to a second list of bitrates. The second list of bitrates includes a different list of bitrates than the first list of potential bitrates. The method outputs the second list of bitrates for encoding the first portion of video.

Abstract: An electroluminescent device, a display substrate, and a display apparatus. The electroluminescent device comprises: an electron transport layer (1) and a quantum dot light emitting layer (3) that are arranged in a stack mode; and an ionic complex layer (2) located between the electron transport layer (1) and the quantum dot light emitting layer (3), wherein a built-in electric field is formed in the ionic complex layer (2).

Abstract: Embodiments of the present disclosure provide a quantum dot light emitting diode, a method for manufacturing a quantum dot light emitting diode and a display device. The quantum dot light emitting diode includes an anode layer, a cathode layer, a quantum dot light emitting layer between the anode layer and the cathode layer, and an electron transport layer between the cathode layer and the quantum dot light emitting layer, the electron transport layer includes at least a first energy level structure layer, a second energy level structure layer, and another first energy level structure layer, which are sequentially stacked, the first energy level structure layer is different from the second energy level structure layer, and a Lowest Unoccupied Molecular Orbital energy level of the first energy level structure layer is different from that of the second energy level structure layer.

Abstract: In some embodiments, a method receives a first image and a second image for a comparison of film grain. The first image and the second image are converted from a spatial domain to a frequency domain to generate a first frequency domain representation for the first image and a second frequency domain representation of the second image. The method compares a first distribution of frequency components from the first frequency domain representation to a second distribution of frequency components from the second frequency domain representation. A score for an assessment of differences of the film grain in the first image and the second image is generated based on the comparing.

Abstract: In some embodiments, a method receives quality metric values for profile levels in a plurality of profile levels for a segment of content. An available bandwidth and associated bitrates of profile levels in the plurality of profile levels are evaluated to select a first profile level. The quality metric values for profile levels in the plurality of profile levels are evaluated to select a second profile level. The method selects a profile level in the plurality of profile levels based on the first profile level and the second profile level. The profile level that is selected is requested for the segment.

Abstract: Disclosed are a haptic feedback method, a driver circuit of a haptic feedback film layer, and a haptic feedback apparatus. The haptic feedback method includes determining a touch position corresponding to a touch operation received by the haptic feedback film layer; determining a target driving signal corresponding to the touch position, wherein the target driving signal includes a plurality of sub-signals with different signal parameters; and driving the haptic feedback film layer to vibrate through the target driving signal.