Abstract: The present disclosure is directed to face detection window refinement using depth. Existing face detection systems may perform face detection by analyzing portions of visual data such as an image, video, etc. identified by sub-windows. These sub-windows are now determined only based on pixels, and thus may number in the millions. Consistent with the present disclosure, at least depth data may be utilized to refine the size and appropriateness of sub-windows that identify portions of the visual data to analyze during face detection, which may substantially reduce the number of sub-windows to be analyzed, the total data processing burden, etc. For example, at least one device may comprise user interface circuitry including capture circuitry to capture both visual data and depth data. Face detection circuitry in the at least one device may refine face detection by determining criteria for configuring the sub-windows that will be used in face detection.

Abstract: A dual-diaphragm differential capacitive microphone includes: a back plate, a first diaphragm, and a second diaphragm. The first diaphragm is insulatively supported on a first surface of the back plate, where the back plate and the first diaphragm form a first variable capacitor. The second diaphragm is insulatively supported on a second surface of the back plate, where the back plate and the second diaphragm form a second variable capacitor. The back plate is provided with at least one connecting hole. The second diaphragm is provided with a recess portion recessed towards the back plate, where the recess portion passes through the connecting hole and is connected to the first diaphragm. The dual-diaphragm differential capacitive microphone achieves a higher signal-to-noise ratio.

Abstract: A dust collection box and a robot vacuum cleaner are disclosed. The dust collection box is used in the robot vacuum cleaner. The dust collection box includes a box body, a filter holder arranged in the box body, a dust separation structure configured to block dust, and a filter. The box body defines an air inlet and an air outlet. The filter holder defines an opening in a side surface thereof. The dust separation structure is arranged in the box body and located at an air inlet side of the opening. The filter is arranged to the filter holder and located at an air outlet side of the opening.

Abstract: An electric striking device is provided, including a main body and a striking unit. The main body includes an interior space and an outlet opening; the striking unit is disposed in the interior space, the striking unit includes an electromagnetic device, a driving member, a steering mechanism and an impacting member, the electromagnetic device drives the driving member to move along a direction perpendicular to an open direction of the outlet opening and further drive the impacting member to move along the open direction of the outlet opening.

Abstract: Embodiments of the present disclosure provide a display device, a packaging method thereof and a display apparatus. The display device includes a base substrate; and a light-emitting unit and a packaging unit sequentially disposed on the base substrate, the packaging unit includes a first packaging film layer, a second packaging film layer and a water-absorbing functional layer located between the first packaging film layer and the second packaging film layer; the water-absorbing functional layer is mainly formed of a self-healing material with water absorbability.

Abstract: A fully homomorphic encrypted ciphertext query method, the method including: acquiring a first plaintext, encrypting the first plaintext using a symmetric-key algorithm or a public-key algorithm to yield a first ciphertext, and storing the first ciphertext as a queried object; receiving a second plaintext which corresponds to a query condition, encrypting the second plaintext using a symmetric-key algorithm or a public-key algorithm to yield a second ciphertext, and storing the second ciphertext as a query object; performing bitwise summation on the queried object and the query object, to acquire a ciphertext query result; and decrypting the ciphertext query result to yield a decrypted plaintext, and comparing the decrypted plaintext with the second plaintext, determining, if the decrypted plaintext is the same as the second plaintext, the ciphertext query result is correct, and the query object exists in the queried object; otherwise, determining the ciphertext query result is incorrect.

Abstract: Devices and methods disclosed herein can include a conductive foam having pores disposed within the conductive foam. The conductive foam can be compressible between an uncompressed thickness and a compressed thickness. The compressed thickness can be ninety-five percent or less of the uncompressed thickness. In one example, a filler can be disposed in the pores of the conductive foam. The filler can include a first thermal conductivity. The first thermal conductivity can be greater than a thermal conductivity of air.

Abstract: A high-dimensional data nearest-neighbor query method based on variable-length hash codes is disclosed. Specifically, in this method, hash codes with the same code frequency are taken as a sub-data set, all the sub-data sets are ranked, a compression ratio is set for each sub-data set, the sub-data sets are compressed and trained according to the compression ratios, and hash codes and original codes corresponding to the trained sub-data sets are obtained; the hash code of each trained sub-data sets is copied to obtain multiple replicas, and the original codes and the corresponding replicas are strung to obtain strung hash codes which are integrated to form a final nearest-neighbor query table; and, a query code is obtained, and the nearest-neighbor query table is searched for a nearest-neighbor data set to complete query. The query efficiency and accuracy are greatly improved according to the invention.

Abstract: An anvil piece of a stapler is provided, including a main body, a crimp groove unit recessed on the main body and including at least one crimp groove, and an export unit. Each said crimp groove is for receiving a leg of a staple and has a blocking face which extends along a guiding path, and each said blocking face is for blocking the leg and making the leg bend along the guiding path; the export unit is recessed on the main body and communicates with the crimp groove unit on an extraction direction, the extraction direction is transverse to the guiding path and away from the crimp groove unit, the export unit includes at least exporting groove, each said exporting groove has an exporting face, and each said exporting face is for the leg which is bent to abuttingly slide therealong.

Abstract: A semiconductor structure includes a plurality of stacks, a plurality of active pillars, and an insulating material. The stacks are separated from each other by a plurality of trenches. The active pillars are disposed in the trenches and separated from each other in each of the trenches. Each of the active pillars comprises two n-type heavily doped portions at two sides thereof. Each of the two n-type heavily doped portions extends in a substantially vertical direction. Each of the two n-type heavily doped portions connects corresponding two stacks of the plurality of stack. The insulating material is located in remaining spaces of the trenches between the active pillars. The insulating material is a silicon glass comprising an element which is applicable as a n-type dopant.

Abstract: A luggage rack able to illuminate includes a body portion (101), fixed on a top of a vehicle. A plurality of illuminators (103) is further included and arranged with the illuminating luggage rack. By arranging the illuminators (103), surrounding vehicles and drivers may easily notice the vehicle having the illuminating luggage rack, ensuring driving safety.

Abstract: A roof luggage rack, a roof luggage rack assembly, and a vehicle having a roof luggage rack are provided. The roof luggage rack includes a body portion, defining a receiving chamber, and an illuminator, arranged in the receiving chamber. According to present the roof luggage rack, a lighting effect is provided to illuminate a side of the vehicle. A driver can observe a traffic condition or check articles carried on the luggage rack at night. Further, the luggage rack may have a dazzling lighting effect, and the vehicle may have an aesthetic appearance.

Abstract: A fully transparent luggage rack having a color illuminant includes a transparent longitudinal rod, an illuminant, a mounting base, a wire and a hollow bolt. The longitudinal rod is connected to the mounting base; the illuminant is arranged in the longitudinal rod; the mounting base is also fixed to a vehicle roof by means of the hollow bolt; and the wire penetrates the hollow bolt and is connected to the illuminant. A vehicle which is arranged with the fully transparent luggage rack having the color illuminant may be provided.

Abstract: The present invention provides an on-line method for stabilizing surface compressive stress of chemically-tempered glass, which comprises the steps of: placing glass to be tempered together with a stabilizer in a tempering furnace containing a molten salt bath for glass tempering; and after reacting at a temperature for a period of time, removing the glass and the stabilizer from the tempering furnace. The stabilizer is capable of chemically reacting with impurity ions in the molten salt bath for glass tempering, to remove the impurity ions in the molten salt bath. Therefore, the presence of the stabilizer allows the impurity ion content in the molten salt bath for glass tempering to be stable without gradual accumulation.

Abstract: An upright vacuum cleaner (1) includes: a brushroll assembly (100) including a brushroll casing (12) and a brushroll (11), the brushroll casing (12) defining a brushroll air-suction channel (122) therein; a motor assembly (200) including a motor housing (21) and a motor (22), the motor housing (21) having an air exhaust hole (213), a dirty air outlet (211) and a clean air inlet (212) and defining a motor air-suction channel (216) and a motor air-exhaust channel; and a body assembly (300) including a body (31) and a dirt cup (37) mounted to the body (31), the dirt cup (37) having a separating chamber (371) communicating with the dirty air outlet (211) and the clean air inlet (212) respectively.

Abstract: Methods of preparing cast-in-place geopolymer piles using electrical heating wire (130) to provide heat to cure the piles are described. The heating wire (130) can be associated with a reinforcement cage (120) inserted in the pile shaft. Rod-shaped heating units comprising electrical heating wire (130) can be inserted into a pile shaft and can be reusable. Geopolymer piles with high compressive strength can be prepared from mixtures of class F fly ash and aqueous sodium hydroxide by heating the piles with the heating wire to a stable curing temperature for at least about 24 hours.

Abstract: A mobile electronic smartphone device having a wedge-shaped body comprised of a curved and slanted display gradually tapered towards the thin end, and a thick head section comprised of a battery compartment and a modular, rotatable or replaceable camera module. The display may be rigid LCD, OLED, microLED with a rigid glass cover. Optionally, flexible, bendable display with stretch-rigid circuit backing and flexible cover screen may be used for a foldable or rollable device, comprised of a bending hinge located at or below the mid-section of the display body, wherein the thinner display section is bendable against the thicker section of the front display. Another embodiment of the wedge body is comprised of rollable housing slats and a flexible display in the lower half thinner display section that can be rolled up like a scroll or lie-flat against the thicker part of the device body.

Abstract: This method comprises: —accessing (2) a point cloud (PC) comprising a plurality of points defined by attributes, said attributes including a spatial position of a point in a 3D space and at least one feature of the point;—segmenting (2) the point cloud into one or more clusters (Ci) of points on the basis of the attributes of the points; and for at least one cluster (Ci):—constructing (4) a similarity graph having a plurality of vertices and at least one edge, the similarity graph representing a similarity among neighboring points of the cluster (Ci) in terms of the attributes, the plurality of vertices including vertices Pi and Pj corresponding to points of the cluster (Ci);—assigning one or more weights wi,j to one or more edges connecting vertices Pi and Pj of the graph;—computing (6) a transform using the one or more assigned weights, said transform being characterized by coefficients; and—quantizing (8) and encoding (10) the transform coefficients.

Abstract: A memory device includes a channel element, a gate electrode layer and a memory element. The channel element has a U shape. The gate electrode layer is electrically coupled to the channel element. The memory element surrounds a sidewall channel surface of the channel element.

Abstract: The present invention provides a method for extracting heat-sensitive Antarctic krill oil comprising the following steps. Firstly, frozen Antarctic krill is thawed and minced; a surfactant is added to the minced Antarctic krill to form a supercritical micelle system; extract the Antarctic krill multiple times after pressurizing and liquefying mixed gases; at the same time, a low-carbon alcohol solvent is added to strip the material in the critical micelle; after the extraction is completed, the extractant is removed; the extraction product and the residue after the extraction are subsequently collected; the heat-sensitive Antarctic krill oil can be obtained by high-speed centrifugal separation of the oil-water mixed extraction product. The present method has the advantages of simple operation, low extraction pressure and high safety. The extraction method of gas pressure liquefaction is completed under low temperature sealing conditions.