Abstract: A speech wakeup method, apparatus, and electronic device are disclosed in embodiments of this specification. The method includes: inputting speech data to a speech wakeup model trained with general speech data; and outputting, by the speech wakeup model, a result for determining whether to execute speech wakeup, wherein the speech wakeup model includes a Deep Neural Network (DNN) and a Connectionist Temporal Classifier (CTC).

Abstract: Disclosed is a system including a substrate having a first side and a second side and a layer of photoacoustic material disposed on the first side of the substrate. The layer of photoacoustic material is configured to generate a directional ultrasound wave in response to a laser beam impinging on the layer. A conduit may be coupled to the housing and have an opening adjacent to the layer of photoacoustic material; the directional ultrasound wave may be directed through fluid that is contained in the conduct to generate a liquid jet in a liquid.

Abstract: There is disclosed a method (400) of ejecting a molded article (310, 312) from an injection mold (100). The method (400) comprises: during a second portion of the mold opening cycle of the injection mold (100), the second portion occurring later in time relative to a first portion of the mold opening cycle of the injection mold (100): controlling velocity of at least one of: (i) the moveable mold half (102, 502) relative to the stationary mold half (104, 504), (ii) the ejector (230) relative to the moveable mold half (102, 502); and (iii) an ejector actuator linked to the core insert (112, 114, 512, 514); and (iv) a stripper actuator that is linked to the stripper sleeve (116, 516); the controlling executed such that the molded article (310, 312, 506) is ejected from the molding component with a substantially zero departure-velocity along the first axis of operation.

Abstract: A speech wakeup method, apparatus, and electronic device are disclosed in embodiments of this specification. The method includes: inputting speech data to a speech wakeup model trained with general speech data; and outputting, by the speech wakeup model, a result for determining whether to execute speech wakeup, wherein the speech wakeup model includes a Deep Neural Network (DNN) and a Connectionist Temporal Classifier (CTC).

Abstract: A Ziegler-Natta catalyzed ethylene/alpha-olefins copolymer is provided having sporadic long chain branches and reversed comonomer composition distribution or short chain branching distribution (SCBD) in the high molecular weight fractions. According to the invention, polyethylene film made with the inventive copolymer has a balance of improved physical, optical, mechanical properties as well as processability. In one aspect, the film includes a 1% secant modulus of greater than 25,000 psi, a film haze of less than 10, a film clarity of greater than 90, a dart impart resistance of greater than 500 g/mil, and a MD tear strength of greater than 500 g/mil.

Abstract: Discussed herein are methods of orienting one-dimensional and two-dimensional materials via the application of stationary and rotating magnetic fields. The oriented one-dimensional and two-dimensional materials may exhibit macroscopic properties, and may be employed in various measurement devices as well as thermal and electrical shielding applications or battery devices. A single 1D or 2D material may be suspended in another material such as dionized water, polymer(s), or other materials during the orientation, and the suspension may remain as a liquid or may be solidified or partially solidified to secure the oriented material(s) into place. The 1D and 2D materials that respond to the magnetic orientation may further cause other elements of the suspension to be oriented in a similar manner.

Abstract: The present invention relates to a process for the (co)polymerization of olefins to make polyethylene (co)polymers having sporadic long chain branches in high molecular weight fractions and a high molecular weight tail along with reversed comonomer composition distribution for improving processability, melt strength and optical properties. Such polyethylene (co)polymers have been prepared with a process comprising the reaction of at least the following components: (a) an advanced Ziegler-Natta catalyst precursor comprising titanium; (b) an activator comprising organohalogenous aluminum compounds; (c) ethylene; and (d) one or more alpha-olefins.

Abstract: A method and an apparatus for estimating an image fuzziness are provided. The method may comprise: acquiring an image; obtaining a multi-scale representation of the image by performing a multi-scale transform on the image; calculating gradients of the image and a normalized histogram of the gradients at each scale based on the multi-scale representation; calculating error vectors between the normalized histogram of gradients at each scale and a normalized original histogram of gradients of the image; performing a weighted summing on the error vectors by using respective weights to obtain a summed result, wherein the weights are determined based on a reciprocal of the sums of squares of the gradients of the image at each scale; estimating the ambiguity of the image based on the summed result.

Abstract: Electronic-photonic integrated circuits (EPICs), such a monolithically integrated circuit, are considered to be next generation technology that takes advantage of high-speed optical communication and nanoscale electronics. Atomically thin transition metal dichalcogenides (TMDs) may serve as a perfect platform to realize EPIC. The generation and detection of light by a monolayer TMD at nanoscale through surface plasmon polaritons (SPPs) may be utilized to provide optical communication. The bidirectional nature of the TMDs allow such a layer to be utilizes as part of emitters or photodetectors for EPICs.

Abstract: Embodiments of the present invention provide a Raman spectroscopic inspection method, comprising the steps of: measuring a Raman spectrum of an object to be inspected successively to collect a plurality of Raman spectroscopic signals; superposing the plurality of Raman spectroscopic signals to form a superposition signal; filtering out a florescence interfering signal from the superposition signal; and identifying the object to be inspected on basis of the superposition signal from which the florescence interfering signal has been filtered out. By means of the above method, a desired Raman spectroscopic signal may be acquired by removing the interference caused by a florescence signal from a Raman spectroscopic inspection signal of the object. It may inspect correctly the characteristics of the Raman spectrum of the object so as to identify the object effectively.

Abstract: A method of evaluating an image quality for an imaging system and the imaging system are provided. The method in some examples includes: acquiring an image to be evaluated which is generated by the imaging system; extracting a number of sub-images from the image; obtaining a coefficient vector indicating a degree of sparsity by applying a sparse decomposition on the sub-images based on a pre-set redundant sparse representation dictionary; and performing a linear transformation on the coefficient vector so as to obtain an evaluation value for the image quality. The sparse dictionary is learned by only using a few high quality perspective images, and then the image quality is evaluated based on the sparse degree of the image obtained by using the sparse dictionary. A convenient and rapid no-reference image quality evaluation is achieved.

Abstract: A non-polar rectifying circuit includes two input terminals, two output terminals, two P-channel MOS transistors, and two N-channel MOS transistors. The two input terminals are respectively connected with a drain of one of the two P-channel MOS transistors and a drain of one of the two N-channel MOS transistors. One of the output terminals is electrically connected with the source of two P-channel MOS transistors, and the other output terminal is electrically connected with the source of two N-channel MOS transistors. In application, regardless of the two input terminals which is the positive polarity or negative polarity, one of the output terminals will output high level, and another will also output low level. As a result, it make the power plug no need to divide the positive and negative, which can reduce the installation time of LED lamps, especially for installing a large number of LED lightings.

Abstract: The present invention relates to a process for the (co)polymerization of olefins to make polyethylene (co)polymers having sporadic long chain branches in high molecular weight fractions and a high molecular weight tail along with reversed comonomer composition distribution for improving processability, melt strength and optical properties. Such polyethylene (co)polymers have been prepared with a process comprising the reaction of at least the following components: (a) an advanced Ziegler-Natta catalyst precursor comprising titanium; (b) an activator comprising organohalogenous aluminum compounds; (c) ethylene; and (d) one or more alpha-olefins.

Abstract: A movement control apparatus for a heliostat device may include a step motor, a decelerating motor, a ball screw assembly, a nut, a connecting shaft, and a linear moving shaft. In one embodiment, the nut is movably connected with the ball screw assembly and is secured on a first connecting board and a second connecting board through the connecting shaft. The nut is driven by the ball screw assembly to travel along the screw shaft and since the nut is connected to the connecting boards through the connecting shaft, and the connecting boards are connected to the moving shaft, the movement of the nut can further drive the connecting shaft to rotate to drive the moving shaft to move in a linear manner on the sliding rail to rotate a mirror assembly of the heliostat around a post.

Abstract: An interconnection mechanism for LED bar lighting includes a plug mechanism and a socket mechanism. The plug mechanism includes a hollow socket, a plug, and a connection pin. The hollow socket includes a hollow plug barrel, a stop ring, a wedge importing ring, and at least one opening. A slope of the wedge importing ring extends toward a free end of the hollow plug barrel. The connection pin includes at least one plug locating ring, at least one socket locating ring, and at least one socket locating bar. The plug locating ring is arranged between the stop ring and the wedge importing ring for fixing the relative position of the connection pin and the hollow socket. The socket mechanism includes a hollow socket barrel, and a locating slot. The socket locating bar is engaged with the locating slot so as to fix the relative position of the connection pin and the hollow socket barrel.

Abstract: The present disclosure relates to a method and device for estimating a point spread function. In one implementation, a method includes capturing, by a scanning device, an image by scanning a plurality of rectangle blocks which are same sized and closely arranged, wherein the plurality of rectangle blocks are made of different materials and/or have different mass thicknesses, and an incident direction of rays is perpendicular to a scanning direction and a surface of the plurality of rectangle blocks arranged closely during scanning; obtaining line spread functions for two directions along a length side and a width side of each of the rectangle blocks based on the scanned image, and obtaining standard deviation parameters of the line spread functions; and combining the standard deviation parameters for the two directions to obtain a two dimensional Point Spread Function (PSF) parameter so as to estimate the point spread function.

Abstract: An LED strip-shaped lamp with a connecting structure includes a first lamp housing, a plug disposed on the first lamp housing, a second lamp housing coupled with the first lamp housing, and a socket on the second lamp housing coupled to the plug. The plug includes a first magnet disposed at an end of the first lamp housing and a first electrical connector fixed in the first pad. The socket includes a second magnet at an end of the second lamp housing and a second electrical connector fixed in the second pad. When the magnets are coupled, the first and the second electrical connector are coupled to connect electrically. The magnets used in the connecting structure of the LED strip-shaped lamp of the present invention can be used as a structure for connecting the first and second lamp housing so as to simplify the connection of the strip-shaped lamps.

Abstract: An LED strip-shaped lamp with a connecting structure includes a first lamp housing, a plug disposed on the first lamp housing, a second lamp housing coupled with the first lamp housing, and a socket on the second lamp housing coupled to the plug. The plug includes a first magnet disposed at an end of the first lamp housing and a first electrical connector fixed in the first pad. The socket includes a second magnet at an end of the second lamp housing and a second electrical connector fixed in the second pad. When the magnets are coupled, the first and the second electrical connector are coupled to connect electrically. The magnets used in the connecting structure of the LED strip-shaped lamp of the present invention can be used as a structure for connecting the first and second lamp housing so as to simplify the connection of the strip-shaped lamps.

Abstract: Disclosed is a system including a substrate having a first side and a second side and a layer of photoacoustic material disposed on the first side of the substrate. The layer of photoacoustic material is configured to generate a directional ultrasound wave in response to a laser beam impinging on the layer. A conduit may be coupled to the housing and have an opening adjacent to the layer of photoacoustic material; the directional ultrasound wave may be directed through fluid that is contained in the conduct to generate a liquid jet in a liquid.

Abstract: Electronic-photonic integrated circuits (EPICs), such a monolithically integrated circuit, are considered to be next generation technology that takes advantage of high-speed optical communication and nanoscale electronics. Atomically thin transition metal dichalcogenides (TMDs) may serve as a perfect platform to realize EPIC. The generation and detection of light by a monolayer TMD at nanoscale through surface plasmon polaritons (SPPs) may be utilized to provide optical communication. The bidirectional nature of the TMDs allow such a layer to be utilizes as part of emitters or photodetectors for EPICs.