Abstract: A light-emitting diode includes a light-emitting epitaxial layer having a first surface as a light-emitting surface and a second surface opposing the first surface, a first type semiconductor layer, an active layer, and a second type semiconductor layer; a transparent dielectric layer located on the second surface and in direct contact with the light-emitting epitaxial laminated layer, and having conductive through-holes therein; a transparent conductive layer located on one side surface of the transparent dielectric layer that is distal from the light-emitting epitaxial laminated layer; and a metal reflective layer located on one side surface of the transparent conductive layer that is distal from the transparent dielectric layer; wherein the transparent dielectric layer includes a first layer and a second layer; and wherein the first layer is thicker than the second layer, and a refractivity of the first layer is less than a refractivity of the second layer.

Abstract: Provided are a display panel and a display device. The display panel includes a display region, a non-display region bordering two sides of the display region at least in a first direction and a hole-digging region. The distance from the hole-digging region to the non-display region on a first side of the display region is smaller than the distance from the hole-digging region to the non-display region on a second side of the display region. The display region includes pixel circuits and initialization signal lines. The non-display region includes cascaded initialization signal shift register units. The initialization signal shift register unit includes a first initialization signal shift register unit located in the non-display region on the first side of the display region. The first initialization signal shift register unit is electrically connected to a corresponding initialization signal line having a partial line segment extending around the hole-digging region.

Abstract: A leakage protection circuit and a dimming drive circuit are provided. A leakage detection circuit is configured to detect whether leakage occurs between two input terminals that receive an external signal. When leakage occurs, leakage protection measures are taken. A pulse generation circuit receives the sampling signal characterizing the voltage between the two input terminals to compare the sampling signal with two thresholds to control a detection path of the leakage detection circuit to be turned on or off according to a comparison result. The leakage detection path is enabled to be turned on twice by setting two pulse signals in a power frequency period, which can consider the leakage detection of the front-edge phase-cutting dimming and rear-edge phase-cutting dimming of the dimming drive circuit and has a wide range of applications.

Abstract: A light-transmitting display panel, a manufacturing method thereof and a display device. The light-transmitting display panel includes a substrate and a light-emitting device layer disposed on the substrate, the light-emitting device layer including a plurality of pixel units and a shielding layer with a plurality of openings, each of the pixel units disposed correspondingly in one of the openings, and each pixel unit including a transparent light transmission portion and a plurality of sub-pixels emitting light of at least three colors distributed around the transparent light transmission portion.

Abstract: Implementations are directed to methods, systems, and computer-readable media for obtaining videos and extracting, from each video, a key frame for the video including a timestamp. For each key frame, a scene graph is generated. Generating the scene graph for the key frame includes identifying, objects in the image, and extracting a relationship feature defining a relationship between a first object and a second, different object of the objects in the key frame. The scene graph for the key frame is generated that includes a set of nodes and a set of edges. A natural language query request for a video is received, including terms defining a relationship between two or more particular objects. A query graph is generated for the natural language query request, and a set of videos corresponding to the set of scene graphs matching the query graph are provided for display on a user device.

Abstract: An evaluation method and an evaluation device for evaluating a health state of well site equipment, and a storage medium are provided. The evaluation method for evaluating the health state of the well site equipment includes: obtaining operating parameters of a component to be tested of equipment to be tested in at least one dimension, the at least one dimension including an operating data dimension, an environmental data dimension, and a maintenance data dimension; obtaining evaluation values of a health state of the component to be tested in various dimensions based on the operating parameters of the various dimensions; obtaining a comprehensive evaluation value of the health state of the component to be tested based on the evaluation values of the health state of the component to be tested in the various dimensions.

Abstract: A shower device comprises a body wash storage container for storing a body wash, a multi-waterway switching valve for switching waterways, at least one showerhead capable of expelling clean water, a mixer for mixing the body wash with clean water, and a foam dispenser. The multi-waterway switching valve comprises at least one primary water outlet and a secondary water outlet, the at least one primary water outlet is connected with the at least one showerhead, the mixer communicates with the body wash storage container, when water passes through the mixer, the mixer is capable of generating a negative pressure with respect to a communicating passage disposed between the body wash storage container and the mixer, the secondary water outlet is connected with a water inlet of the mixer, and the foam dispenser is only connected with a body wash outlet of the mixer.

Abstract: A light emitting diode includes: a light emitting layer arranged on at least part of a first semiconductor layer, and a second semiconductor layer; a local defect region over a portion of the second semiconductor layer and extending downward to the first semiconductor layer; a metal layer over a portion of the second semiconductor layer; an insulating layer covering the metal layer, the second and first semiconductor layers in the local defect region, with opening structures over the local defect region and the metal layer, respectively; and an electrode structure over the insulating layer and having a first layer and a second layer, and including a first-type electrode region and a second-type electrode region; wherein an upper surface and a lower surface of the first layer are not flat, and a lower surface of the second layer are both flat.

Abstract: A method of processing audio data, an electronic device, and a storage medium, which relates to a field of artificial intelligence, in particular to a field of speech processing technology. The method includes: processing spectral data of the audio data to obtain a first feature information; obtaining a fundamental frequency indication information according to the first feature information, wherein the fundamental frequency indication information indicates valid audio data of the first feature information and invalid audio data of the first feature information; obtaining a fundamental frequency information and a spectral energy information according to the first feature information and the fundamental frequency indication information; and obtaining a harmonic structure information of the audio data according to the fundamental frequency information and the spectral energy information.

Abstract: A method of recommending data, a device, and a medium, which relate to a field of an artificial intelligence technology, in particular to fields of deep learning, natural language processing and intelligent recommendation technologies. The method of recommending the data includes: acquiring operation data of an operation object, and the operation data is associated with first content data and first target object data; determining an operation object feature, a content feature and a target object feature based on the operation data; determining a fusion feature based on the operation object feature and the content feature; and recommending second content data and second target object data in an associated manner based on the fusion feature and the target object feature.

Abstract: The present disclosure provides a method for processing intelligent question-answering, an intelligent question-answering system, an electronic device and a storage medium, and relates to the field of artificial intelligence technologies, such as machine learning technologies, natural language processing technologies, or the like. An implementation includes: acquiring an input question and input data information; and based on the question, the data information and a plurality of knowledge bases, deciding an answer to the question by multilayer appreciation using a plurality of understanding module layers.

Abstract: A power supply conversion topology of a multiphase switch capacitor resonant cavity conversion circuit with full-wave output rectification. The power supply conversion topology includes at least k conversion switch capacitors and one output switch capacitor which are sequentially connected in series through conductors and are connected to two ends of input power supply. When a transformer ratio N is an even number, k=N/2; when transformer ratio N is not an even number, k is smallest integral greater than N/2; and lower end of output switch capacitor is grounded, and two ends of output switch capacitor are connected with output interfaces. Power supply conversion topology further includes k switch resonant cavity converters. When transformer ratio N is even number, k=N/2; and when transformer ratio N is not even number, k is smallest integral greater than N/2. The invention further discloses two power supply conversion structures based on power supply conversion topology.

Abstract: A display device driving method and the display device are provided. The display device driving method determines a driving voltage value of each backlight unit based on a content to be displayed by a display unit corresponding to each backlight unit, achieving dynamic adjustment of luminous brightness of the backlight unit according to the display content of the corresponding display unit. Meanwhile, the driving voltage value is related to a noise in an image. Therefore, a better backlight brightness value can be obtained by reducing an influence of the noise on the adjustment of the luminous brightness.

Abstract: A method of detecting an event, an electronic device, and a storage medium, which are related to a field of computer technology, in particular to a field of artificial intelligence technology, such as image processing and cloud computing. The method includes: determining a first target object according to a first image; determining a second target object and a category of the second target object according to a second image; associating a first target object with the category of the second target object to obtain a first event information; and comparing the first event information with a detection threshold to obtain a first event detection result.

Abstract: A semantic understanding method, includes: acquiring a query statement and a preceding dialogue; rewriting the query statement based on a preset rule to generate a target query statement if it is recognized that the query statement meets a rule rewriting condition according to the query statement and the preceding dialogue; rewriting the query statement based on a rewriting model to generate the target query statement if it is recognized that the query statement does not meet the rule rewriting condition according to the query statement and the preceding dialogue; and performing intention recognition according to the target query statement to generate an intention recognition result.

Abstract: A level conversion circuit and a display panel are provided. The level conversion circuit includes a signal generation circuit configured to output driving signals through a plurality of signal output terminals, a first operational amplification circuit configured to level-convert a voltage of an input terminal and output the voltage through an output terminal, and signal output terminals of the signal generation circuit are in one-to-one correspondence with input terminals of the first operational amplification circuit; a plurality of switching circuits connected between the signal output terminal and the input terminal, connected to a control signal terminal, and configured to communicate the signal output terminal with the input terminal in response to a signal of the control signal terminal. At least part of the switching circuits are connected to different control signal terminals.

Abstract: A display panel comprising a display region, a non-display region around the display region, and a transition display region located between the display region and the non-display region, wherein the display panel comprises: a display base plate; an encapsulation cover plate located on the display base plate and configured to seal the display base plate; a support column disposed between the display base plate and the encapsulation cover plate, and configured to support the encapsulation cover plate. In the transition display region, a surface of the encapsulation cover plate close to the display base plate is provided with a first groove, and/or a surface of the display base plate close to the encapsulation cover plate is provided with a second groove.

Abstract: The present disclosure provides speech recognition and codec methods and apparatuses, an electronic device and a storage medium, and relates to the field of artificial intelligence such as intelligent speech, deep learning and natural language processing. The speech recognition method may include: acquiring an audio feature of to-be-recognized speech; encoding the audio feature to obtain an encoding feature; truncating the encoding feature to obtain continuous N feature fragments, N being a positive integer greater than one; and acquiring, for any one of the feature segments, corresponding historical feature abstraction information, encoding the feature segment in combination with the historical feature abstraction information, and decoding an encoding result to obtain a recognition result corresponding to the feature segment, wherein the historical feature abstraction information is information obtained by feature abstraction of recognized historical feature fragments.

Abstract: A three-level converter includes a high-voltage side unit, a low-voltage side unit, a flying capacitor, a first switch to a fourth switch, and a control unit. When a voltage of the flying capacitor falls outside a safe target voltage range, the control unit may control the third switch and the fourth switch to be normally open, and control, based on the voltage of the flying capacitor and a voltage of the low-voltage side unit, each of the first switch and the second switch to be turned on or off, so that the voltage of the flying capacitor falls within the target voltage range. Alternatively, the control unit may control the first switch and the second switch to be normally open, and control, based on the voltage of the flying capacitor and a voltage of the low-voltage side unit.

Abstract: A method for measuring and analyzing the productivity of Angora rabbit is provided. Firstly, the Angora rabbit to be tested are simultaneously sheared at the age of 18 weeks, and are reared in a single cage to the age of 29 weeks according to standard conditions for test, and the individual consumption of Angora rabbit during the test period is recorded; secondly, the wool samples were sheared from the middle and upper part of the body side of the Angora rabbit with an electric wool clippers. The weight of the Angora rabbit, the weight of the wool sample, and the length of the wool fiber were measured and bagged for recording; in the third step, the wool fiber diameter of each wool sample was measured by fiber projection method; in the fourth step, the measured values were substituted into the given estimation formula.