Abstract: Pixels in an organic light-emitting diode (OLED) display may be microcavity OLED pixels having optical cavities. The optical cavities may be defined by a partially transparent cathode layer and a reflective anode structure. The anode of the pixels may include both the reflective anode structure and a supplemental anode that is transparent and that is used to tune the thickness of the optical cavity for each pixel. Organic light-emitting diode layers may be formed over the pixels and may have a uniform thickness in each pixel in the display. Pixels may have a conductive spacer between a transparent anode portion and a reflective anode portion, without an intervening dielectric layer. The conductive spacer may be formed from a material such as titanium nitride that is compatible with both anode portions. The transparent anode portions may have varying thicknesses to control the thickness of the optical cavities of the pixels.

Abstract: The present disclosure provides a display device, a sound-emitting control method, and a sound-emitting control device.

Abstract: A rectifier and a flowmeter, the rectifier including a fairing, wherein a first rectifying section (1) positioned at the upstream, a reducing section (2) positioned at the midstream and a second rectifying section (3) positioned at the downstream, can be arranged in the fairing. The first rectifying section and the second rectifying section are respectively provided with a group of rectifying channels parallel to the flow direction of fluid, and a through-hole (21) can be formed in the reducing section. The rectifier can provide improved rectification effects.

Abstract: The present application relates to a positive electrode active material and a preparation method thereof, a positive electrode sheet and a secondary battery. The positive electrode active material has a composition chemical formula of LixNa1-xAyB1-yO2-nDn, where A is selected from a combination of Ni and Mn, B is selected from at least one non-alkali metal positive-valent element other than Ni, Mn, Co, and S, D is selected from F and/or S, 0.8?x?0.92, 0.90?y<1.0, 0<n?0.2, and a peak position difference between the Ni—O bond and the Mn—O bond of the positive electrode active material in a Raman spectrum is greater than 80 cm?1 and less than 110 cm?1. The positive electrode active material has high specific capacity and high cycle stability at a high voltage window, and low cost, causing the prepared secondary battery to have high cost performance.

Abstract: A manganese-based carbonate precursor of a positive electrode material for a secondary battery has a specific structure and composition and contains a trace amount of uniformly distributed Na element, a content of Na is in a range of 0.5-3 mol %, which range can ensure that the structural integrity and consistency of carbonate crystals are not affected. In addition, the trace amount of Na element is uniformly distributed inside the manganese-based carbonate precursor provided in the present application, and by means of simple mixing with a lithium source and sintering, a lithium-rich manganese-based material uniformly doped with Na element can be directly obtained without the need for introducing other Na source, whereby uneven doping of Na is effectively avoided, the doping effect is improved, and the electrical properties of the material are significantly improved.

Abstract: A driving method and drive circuit of a display panel, a display panel, and a display device. The method includes: receiving initial image data of a frame to be displayed, the resolution of an initial image corresponding to the initial image data being different from the resolution of a display panel; the initial image data including a plurality of pieces of initial gray scale data for displaying the initial image; according to the initial gray scale data in the initial image data, the resolution of the initial image, and the resolution of the display panel, determining target gray scale data corresponding to panel sub-pixels in the display panel; and driving the display panel to display according to the target gray scale data.

Abstract: A fake voice detection method based on dual-track differential modeling includes: converting, by a pre-trained single/dual-track voice conversion model, a single-track audio into a stereo; extracting left and right-track Mel spectrogram features; performing texture enhancement on absolute values of differences between an original single-track Mel spectrogram feature and each of the left and right-track Mel spectrogram features; inputting texture enhancement results into left and right dual-branch feature extractors respectively to acquire a final attention map through feature extraction, processing and fusion; and inputting the final attention map into an attention pooling layer and a final binary classification layer to acquire a fake voice detection result.

Abstract: The disclosure relates to a guide configured to allow moving at least a portion of the beam delivery system, to adjust an orientation of at least the movable portion to different orientations of the patient's head measured around an axis of the eye to be treated. The system has an orientation analysis system for acquiring orientation-related data using one or more body portions of the patient. The ophthalmic laser system allows a user and/or the controller, using the orientation-related data, to move the movable portion of the beam delivery system so that during the laser treatment, the movable portion has an orientation around the axis of the eye and relative to the patient's head, which corresponds or substantially corresponds to a pre-determined target orientation; or which is within or substantially within a pre-determined target range.

Abstract: An anti-force brake testing platform for an electric vehicle based on model predictive control (MPC) includes a first testing unit; a second testing unit; a third testing unit; a fourth testing unit; a wheelbase adjustment device; and a control cabinet system. The first and second testing units are structurally identical and have the same height, and are provided at the same horizontal foundation plane, with each including a first driving device, a first roller group, a first lifting device, a steering device, a frame, and a first control and test device. The third and fourth testing units are structurally identical, with each including a second driving device, a second roller group, a second lifting device, an anti-slip stopping mechanism, a first fixed base frame, a locking mechanism, and a second control and test device. The wheelbase adjustment device includes a second fixed base frame and a movable stand.

Abstract: An apparatus includes a first switch connected between an input voltage bus of a hybrid switched capacitor converter and an input of a bias power regulator, a second switch connected between a first switching node of the hybrid switched capacitor converter and the input of the bias power regulator, wherein the second switch is configured such that when the second switch is turned on, a voltage on the first switching node is equal to (N/M) of a voltage on the input voltage bus, a third switch connected between a second switching node of the hybrid switched capacitor converter and the input of the bias power regulator, wherein the third switch is configured such that when the third switch is turned on, a voltage on the second switching node is equal to (L/M) of the voltage on the input voltage bus.

Abstract: Described herein are polymeric fluorophores that include a dye, a polymer, and optionally a bioconjugate group. A polymeric fluorophore may have a structure represented by: A-B-C or C-A-B, wherein A is a dye; B is a polymer comprising one or more hydrophobic unit(s) and one or more hydrophilic unit(s); and optionally C, wherein C, when present, comprises a bioconjugate group. Also described herein are compositions comprising the polymeric fluorophores and methods of preparing and using the same.

Abstract: The present application discloses a lithium nickel manganate positive electrode material, a preparation method therefor and an application thereof. The lithium nickel manganate positive electrode material has a molecular formula of Li?Ni?Mn2-?M?O4-?/N, where 0.95???1.1, 0.4???0.6, 0.0005???0.02, 0???0.2, M is a single-crystal dispersing element, and M is at least one of V, Nb, Ta, Mo or W; N represents a coating layer, and the coating layer includes a P compound and/or an Al compound, and a coating amount of N is 500-10000 ppm. By means of adding a small amount of a single-crystal dispersing element (V, Nb, Ta, Mo or W), a high-voltage nickel manganese material having good dispersity of single crystals is prepared. By means of uniformly coating the P compound and/or the Al compound to the lithium nickel manganate positive electrode material, the direct contact between the positive electrode material and an electrolyte, is avoided.

Abstract: The present disclosure provides a preparation method of a yak hide-derived oligopeptide ferrous chelate with a high antioxidant activity. The preparation method includes preparing a yak hide-derived oligomeric collagen peptide and subjecting the yak hide-derived oligomeric collagen peptide as a protein source to chelation with an iron source in water. A pretreated yak hide is subjected to enzymatic hydrolysis under a pH value of 7 at 50° C. for 4 h with an amount of an enzyme added at 2% to obtain a yak skin-derived collagen with a molecular weight of less than 2 kDa; the chelation is conducted in a peptide-to-iron mass ratio of 1:1 to 5:1 with a peptide concentration of 1% to 5% at 30° C. to 70° C. for 20 min to 60 min under a pH value of 3 to 8; and an iron chelating capacity is 42.72 mg/g under optimal preparation conditions.

Abstract: A display panel and a display device are provided. The display panel includes sub-pixels, data lines and gate lines. The sub-pixels include pixel circuits connected to the data lines and the gate lines. The display panel includes display subregions and selection signal line groups in one-to-one correspondence, each display subregion includes at least two sub-pixels, each selection signal line group includes selection signal lines, and the selection signal lines corresponding to different display subregions are insulated from each other; the pixel circuit includes a transistor in which an active semiconductor layer includes a first part and a second part, the first part overlaps with the gate line electrically connected with the transistor, and the second part overlaps with at least one selection signal line, and the gate line and the selection signal line are both configured to turn on the transistor upon being input with a turn-on voltage.

Abstract: Disclosed are a brightness control apparatus and method, and a display apparatus. The brightness control apparatus includes an optical detection circuit and an integrated circuit chip connected with the optical detection circuit. The optical detection circuit includes at least one transistor, configured to detect a light intensity of light to be detected corresponding to an environment where a display panel is located, and generate an electrical signal corresponding to the light intensity of the light to be detected.

Abstract: A dual connection re-establishment method, a non-transitory computer-readable storage medium, and a node are disclosed. The dual connection re-establishment method may include: sending a configuration information request to a target secondary node (SN) in response to a RRC connection re-establishment completion instruction sent by a UE (S1); receiving first configuration information fed back by the target SN (S2); and sending the first configuration information, and second configuration information corresponding to the MN to the UE for the UE to complete the RRC connection reconfiguration with the MN and the target SN according to the first configuration information and the second configuration information (S3).

Abstract: Pixels in an organic light-emitting diode (OLED) display may be microcavity OLED pixels having optical cavities. The optical cavities may be defined by a partially transparent cathode layer and a reflective anode structure. The anode of the pixels may include both the reflective anode structure and a supplemental anode that is transparent and that is used to tune the thickness of the optical cavity for each pixel. Organic light-emitting diode layers may be formed over the pixels and may have a uniform thickness in each pixel in the display. Pixels may have a conductive spacer between a transparent anode portion and a reflective anode portion, without an intervening dielectric layer. The conductive spacer may be formed from a material such as titanium nitride that is compatible with both anode portions. The transparent anode portions may have varying thicknesses to control the thickness of the optical cavities of the pixels.

Abstract: The present disclosure provides an automatic driving test method. The method includes: acquiring test configuration information input by a user; generating test cases according to the test configuration information, and allocating the test cases to corresponding test types, wherein test types comprise a virtual simulation test, a whole vehicle in-loop test, a closed site test, and an open road test; and under each test type, testing a to be tested vehicle based on the corresponding test cases to obtain test results corresponding to each of the test type, and the test results comprise a simulation test result, a whole vehicle in-loop test result, a closed road test result, and an open road test result. Thus obtaining rich comprehensive test evaluation results makes the test results for autonomous vehicles more accurate.

Abstract: Provided is a method for transmitting image data. The method includes acquiring initial image data of a to-be-displayed image in a display panel, wherein the display panel includes a plurality of pixels, and the initial image data includes pixel data of the plurality of pixels; compressing pixel data of a plurality of first pixels in the initial image data to acquire at least one piece of compressed pixel data, wherein the plurality of first pixels are disposed in a non-foveal region of the display panel, and a plurality of second pixels are disposed in a foveal region of the display panel; sending compressed image data to a driver chip of the display panel, wherein the compressed image data comprises the at least one piece of compressed pixel data and pixel data of the plurality of second pixels.

Abstract: The present disclosure provides a display device, a sound-emitting control method, and a sound-emitting control device. The device includes: a display screen which includes a first display region, a middle display region, and a second display region; a plurality of sound-emitting units, which include: a plurality of first sound-emitting units, a plurality of second sound-emitting units and a plurality of third sound-emitting units; the plurality of first sound-emitting units and the plurality of second sound-emitting units respectively include a sound-emitting unit which emits sounds at a first frequency band, a sound-emitting unit which emits sounds at a second frequency band, and a sound-emitting unit which emits sounds at a third frequency band; the first, second, and third frequency bands increase in turn; and all of the plurality of third sound-emitting units are the sound-emitting units emitting sound in the second frequency band.