Abstract: A LED lighting device, comprising: a base which has a bottom plate and a side wall, a cavity being formed between the bottom plate and the side wall; an optical component which covers one side of the base in a light-emitting direction of the LED lighting device; and a light source which is provided in the cavity of the base and comprises a circuit board and several LED arrays, the LED arrays comprising LED lamp beads fixed on the circuit board. The optical component comprises an optical unit, and the optical unit comprises a plurality of first optical components and a plurality of second optical components which correspond to the first optical components.

Abstract: A cable arrangement mechanism is provided, which is disposed inside the housing of an electronic device. The cable arrangement mechanism includes a first tube, a second tube, and a plurality of first resilient elements. The first tube includes a first base, a first extension connected to the first base and extending from a first inner surface, and a first extrusion connected to the first base and extending from a first outer surface. The second tube includes a second base, a second extension connected to the second base and extending from a second inner surface, and a second extrusion connected to the second base and extending from a second outer surface. The first resilient elements respectively connect the first extrusion and the second extrusion to the housing, so that the first tube and the second tube are rotatably connected to the housing.

Abstract: A LED lighting device, comprising: a base which has a bottom plate and a side wall, a cavity being formed between the bottom plate and the side wall; an optical component which covers one side of the base in a light-emitting direction of the LED lighting device; and a light source which is provided in the cavity of the base and comprises a circuit board and several LED arrays, the LED arrays comprising LED lamp beads fixed on the circuit board. The optical component comprises an optical unit, and the optical unit comprises a plurality of first optical components and a plurality of second optical components which correspond to the first optical components.

Abstract: Disclosed is a method of manufacturing a three dimensional (3D) metal-insulator-metal (MIM) capacitor in the back end of line, which can provide large and tunable capacitance values and meanwhile, does not interfere with the existing BEOL fabrication process.

Abstract: A method for predicting student performance in interactive question pools, comprising: a data processing and feature extraction module for: extracting from historical score data records statistical student features reflecting the students' past performances on the questions; and statistical question features indicating a question popularity of each question and the average students' scores on each question; and extracting from the pointing device movement data records a plurality of interactive edge features representing the characteristics of the students' problem-solving behaviors; a network construction module for: performing an Edge2Node transformation to transform the interactive edge features into one or more interaction nodes; and constructing a heterogeneous student-interaction-question (SIQ) network; and a prediction module for processing the SIQ network using a residual relational graph neural network to predict a student's score on unattempt questions.

Abstract: A touch operation processing method includes detecting a touch operation of a user, which starts from a border of a screen display area to the screen display area, using the first point touched by the touch operation in the screen display area as a starting point, and performing, according to the touch operation, reduction processing on an operation interface displayed in the screen display area, where one edge of an operation interface after the reduction processing includes the starting point.

Abstract: A cable arrangement mechanism is provided, which is disposed inside the housing of an electronic device. The cable arrangement mechanism includes a first tube, a second tube, and a plurality of first resilient elements. The first tube includes a first base, a first extension connected to the first base and extending from a first inner surface, and a first extrusion connected to the first base and extending from a first outer surface. The second tube includes a second base, a second extension connected to the second base and extending from a second inner surface, and a second extrusion connected to the second base and extending from a second outer surface. The first resilient elements respectively connect the first extrusion and the second extrusion to the housing, so that the first tube and the second tube are rotatably connected to the housing.

Abstract: Provided is a light-emitting device including a substrate, a first light-emitting unit, a second light-emitting unit, a third light-emitting unit, a blue light absorbing photoresist layer and an atomic layer deposition (ALD) gas barrier layer. The first light-emitting unit includes a first micro LED device and a first light conversion layer wrapping the first micro LED device, the second light-emitting unit includes a second micro LED device and a second light conversion layer wrapping the second micro LED device, and the third light-emitting unit includes a third micro LED device and the third light conversion layer wrapping the third micro LED device. The blue light absorbing photoresist layer covers the first and second light-emitting units, while exposing the third light-emitting unit. The ALD gas barrier layer wraps the first, second, and third light-emitting units, and the blue light absorbing photoresist layer.

Abstract: A system for proctoring online exams includes a client-side computing system and a visual analytics system. The client-side computing system includes a camera configured to obtain video data corresponding to a user while taking an exam and one or more input devices configured to obtain interaction data, wherein the interaction data includes mouse movements of the user while taking the exam. The visual analytics system is configured to obtain the video data and the interaction data from the client-side computing system, analyze the exam data to detect abnormal behavior by the user based at least in part on mouse movement data, and generate one or more visualizations of the analyzed exam data to be used in determining whether or not the user has cheated during the exam.

Abstract: An embodiment semiconductor device includes an interposer, a semiconductor die electrically connected to the interposer, an integrated passive device die electrically connected to the interposer, the integrated passive device die including two or more seal rings, and a first alignment mark formed on the integrated passive device die within a first area enclosed by a first one of the two or more seal rings. The integrated passive device die may further include two or more integrated passive devices located within respective areas enclosed by respective ones of the two or more seal rings. Each of the two or more integrated passive devices may include electrical connections that are formed as a plurality of micro-bumps, and the first alignment mark may be electrically isolated from the electrical connections, and the first alignment mark and the electrical connections may share a common material.

Abstract: A backlight module and a display apparatus are provided. The backlight module includes a quantum fluorescent film. The quantum fluorescent film includes a light conversion layer. The light conversion layer includes a resin material, a plurality of quantum dots and a plurality of phosphors. The plurality of quantum dots and the plurality of phosphors are dispersed in the resin material.

Abstract: A touch operation processing method includes detecting a touch operation of a user, which starts from a border of a screen display area to the screen display area, using the first point touched by the touch operation in the screen display area as a starting point, and performing, according to the touch operation, reduction processing on an operation interface displayed in the screen display area, where one edge of an operation interface after the reduction processing includes the starting point.

Abstract: A bicycle seat post structure includes an upper tube, a lower tube, a height adjusting mechanism and at least one sliding member. The upper tube includes at least one stopping member. The lower tube has a first edge. The sliding member is movably disposed in the lower tube. The stopping member does not abut against the sliding member as the stopping member is in a first position. When the height adjusting mechanism is operated to allow the upper tube to move along an axial direction, the stopping member is switched to a second position and is restricted by the sliding member. The sliding member is operated to move along the axial direction so as to be positioned from one of a plurality of positions to another one of the plurality of positions, thereby changing a distance between the stopping member in the second position and the first edge.

Abstract: A touch operation processing method includes detecting a touch operation of a user, which starts from a border of a screen display area to the screen display area, using the first point touched by the touch operation in the screen display area as a starting point, and performing, according to the touch operation, reduction processing on an operation interface displayed in the screen display area, where one edge of an operation interface after the reduction processing includes the starting point.

Abstract: A system for proctoring online exams includes a client-side computing system and a visual analytics system. The client-side computing system includes a camera configured to obtain video data corresponding to a user while taking an exam and one or more input devices configured to obtain interaction data, wherein the interaction data includes mouse movements of the user while taking the exam. The visual analytics system is configured to obtain the video data and the interaction data from the client-side computing system, analyze the exam data to detect abnormal behavior by the user based at least in part on mouse movement data, and generate one or more visualizations of the analyzed exam data to be used in determining whether or not the user has cheated during the exam.

Abstract: Quantum dot is a semiconductor nanomaterial. The quantum dot includes a core constituted of InP, a first shell constituted of ZnSe, a second shell constituted of ZnS, and a gradient alloy intermediate layer. The core is wrapped by the first shell. The first shell is wrapped by the second shell, and the first and second shells have different materials. The gradient alloy intermediate layer is between the core and the first shell. The gradient layer includes an alloy constituted of In, P, Zn and Se. A content of the In and P gradually decreases from the core to the first shell. A content of the Zn and Se gradually increases from the core to the first shell. A particle size of the quantum dot is greater than or equal to 11 nm. The quantum dot is capable of emitting light upon excitation with a photoluminescence quantum yield equal to or more than 50%.

Abstract: Provided is a backlight module including a light source, a light guide plate, and a composite color-conversion layer. The light source emits a blue light. The light guide plate is optically coupled to the light source and the blue light transmits through the light guide plate. The composite color-conversion layer is disposed on the light guide plate. The composite color-conversion layer includes at least three different populations of quantum dots. The at least three different populations of quantum dots at least include a plurality of cyan quantum dots or a plurality of yellow quantum dots.