Abstract: The present disclosure provides a compound eye-based in-situ monitoring unit, a micro-adjustment unit, and a multi-spectral imaging system thereof. The compound eye-based in-situ monitoring unit includes a spherical installation cover and an imaging assembly disposed on the spherical installation cover, where the spherical installation cover is provided with a spherical grid array, the spherical grid array includes 20 installation points (five rows and four columns), one imaging assembly is installed on each installation point, the imaging assemblies include a charge coupled device (CCD) optical digital camera assembly, a digital image correlation (DIC) light source assembly, an infrared (IR) spectrum assembly, a Raman spectrum assembly, and a terahertz light source assembly.

Abstract: A method for measuring equivalent circuit parameters and resonant frequency of a piezoelectric resonator, by which the phase-frequency curve of the piezoelectric resonator is measured, and the resonant frequency and the anti-resonant frequency are obtained. Then, the slopes of the phase-frequency curve at the resonant frequency and the anti-resonant frequency are respectively measured. The resonant angular frequency and the anti-resonant angular frequency are also calculated. Finally, the equivalent circuit parameters of the piezoelectric resonator are obtained by solving a system of nonlinear equations.

Abstract: A method for treating domestic sewage includes: preliminarily treating the domestic sewage through a grating and a grit chamber, so as to remove large-particle solids in the domestic sewage; and subjecting the domestic sewage after the preliminary treatment to circulating anaerobic-oxic treatment in a membrane bioreactor (MBR). In the oxic treatment process, microorganisms oxidize nitrogen in the sewage into nitrite or nitrate. Under anaerobic conditions, denitrifying bacteria in the microorganisms reduce the nitrate, releasing molecular nitrogen or nitrous oxide. In the present invention, the MBR is filled with a quinone-based hollow fiber membrane. During the microbial denitrification, the quinone acts as an electron transfer carrier to participate in the denitrification to promote the reduction of the nitrate (nitrite), increasing the denitrification rate under anaerobic conditions, and achieving the purpose of efficient denitrification.

Abstract: A method for identifying body representation information in an image, includes: determining a skeleton-like line of a body in the image; and then performing identification of the body representation information according to the skeleton-like line. An apparatus, and a device for identifying body representation information in an image and a storage medium are also provided.

Abstract: An electric vehicle computing sharing system (100) is adapted to receive a signal indicating the electric vehicle (110, 120, 130) is connected to a charging station (115, 125, 135). The computing sharing system (100) may be further adapted to receive information about the electric vehicle (110, 120, 130). The computing sharing system (100) may be further adapted to determine a predicted charging duration (535) for the electric vehicle (110, 120, 130). The computing sharing system (100) may be further adapted to identify a task for execution by a computing resource of the electric vehicle (110, 120, 130) based on the predicted charging duration (535). The computing sharing system (100) may be further adapted to transmit the task to the electric vehicle (110, 120, 130). The computing sharing system (100) may be further adapted to receive a result for the task from the electric vehicle (110, 120, 130).

Abstract: A dovetail-type embedded connecting piece and an office desk are provided. The dovetail tenon type embedded connecting piece includes a dovetail groove and a dovetail tenon in a mortise-tenon connection with the dovetail groove. The dovetail groove includes a main plate and an auxiliary plate detachably connected with the main plate. A first clamping groove and the dovetail groove are formed by the main board and the auxiliary plate in use. The dovetail tenon includes a left side plate and a right side plate detachably connected to the left side plate, and in a use state, a second clamping groove is formed by the left side plate and the right side plate.

Abstract: Systems and methods for musical performance are provided. In some embodiments, a system for musical performance includes a processing device to: receive performance information related to a first performance of a piece of music on a first musical instrument; generate at least one control signal based on the performance information; and produce a second performance based on the control signal, wherein to produce the second performance, the processing device is further to: control at least one tone generating device of a second musical instrument to perform the music using the control signal.

Abstract: Autonomous robots and methods of operating the same are disclosed. An autonomous robot includes a sensor and memory including machine readable instructions. The autonomous robot further includes at least one processor to execute the instructions to generate a velocity costmap associated with an environment in which the robot is located. The processor generates the velocity costmap based on a source image captured by the sensor. The velocity costmap includes velocity information indicative of movement of an obstacle detected in the environment.

Abstract: A concrete inside interface processing structure for secant pile construction, including secant concrete pile, formed plain concrete pile, rotary jet grouting piles, steel mesh sheet, ribbed steel bar, Y-shaped connecting piece, reinforced concrete pile, and U-shaped connecting piece; drilled holes are arranged at intervals along axis of the formed plain concrete pile; the ribbed steel bar is anchored in each drilled hole; the steel mesh sheet is formed by connecting longitudinal bars and transverse bars, and driven into a soil body between the formed plain concrete piles; the concrete layer is formed by spraying concrete on the steel mesh sheet; the reinforced concrete pile is cast at outside of the formed plain concrete pile, and tangent to the formed plain concrete pile, and interlocked with the rotary jet grouting piles; the rotary jet grouting piles are tangent to the formed plain concrete pile or secant concrete pile.

Abstract: A permeability-enhancing flooding system for tight oil reservoirs and preparation and use thereof are disclosed. The permeability-enhancing flooding system is present in a state of oil-in-water droplet and composed of a surfactant, an oil-soluble substance and water, and has an outer phase that is an aqueous solution containing the surfactant, and an inner phase that is the oil-soluble substance; and the surfactant comprises one of nonionic gemini surfactants and anionic gemini surfactants, or a combination of two or more thereof. The preparation process for the permeability-enhancing flooding system is simple to operate, suitable for industrialized production, and low in overall cost, and has obvious application prospects in the field of tight oil reservoirs for an enhanced oil recovery.

Abstract: The present disclosure relates to a method and system for calibrating a musical device. In some embodiments, a method for calibrating a musical device includes: energizing an actuator to actuate a key using a force corresponding to a first intensity level; obtaining, from a sensor, a first sensor signal representing motion information of the key corresponding to application of the force; and calibrating the musical device based on the first sensor signal.

Abstract: The present invention discloses a film for a medicine packaging and a method of preparing the same. The film for the medicine packaging includes a polymer film layer, a graphene composite layer and a light-curable adhesive, wherein the polymer film layer is bonded with a graphene composite layer by a light-curable adhesive, the graphene composite layer includes multiple graphene layers bonded by the light-curable adhesive; and the light-curable adhesive includes a hyperbranched cationic mussel-imitated polymer including a multi-hydroxylbenzoylbenzamide ene amide monomer, a cationic monomer and a photo-responsive monomer. The present invention provides strong adhesion with reduced adhesive layer, allowing greatly increasing the number of the graphene layers in the graphene composite layer without obvious increase in the total thickness and mass.

Abstract: A present invention provides a nitrite rubber composite, a preparation method thereof and a sealing ring using the composite are provided. The nitrile rubber composite provided by the present invention contains the following preparation raw materials in parts by mass: 100 parts of raw nitrile rubber, 0.1-5 parts of liquid nitrite rubber modified graphene oxide, 60-90 parts of liquid nitrite rubber modified carbon black, 1-3 parts of anti-aging agent, 2-6 parts of compound vulcanizing agent, and 1-3 parts of accelerant.

Abstract: A method for treating dye wastewater includes: firstly, homogenizing the dye wastewater to balance the quality of the dye wastewater from different processes; then subjecting the homogenized dye wastewater to anaerobic treatment to remove most of chemical oxygen demand (COD) and total suspended solids (SS) in the wastewater; and finally subjecting the dye wastewater after the anaerobic treatment to circulating anaerobic-oxic treatment in a membrane bioreactor (MBR). In the present invention, the MBR is filled with a quinone-based hollow fiber membrane. The quinone acts as an electron mediator to accelerate an enzymatic reaction for dye decolorization during the anaerobic process, thereby achieving the purpose of efficient decolorization. The oxic treatment process further removes the COD and SS in the wastewater, so that the effluent meets a first-level discharge standard.

Abstract: A liquid crystal display (LCD) includes several transparent material layers and several non-transparent material layers that are disposed in a stacked mode. The LCD also has a local transparent region, and no non-transparent material is applied to the several non-transparent material layers in the local transparent region. This forms a transparent channel in the local transparent region along a stacking direction. An optical component is completely or partially disposed in the transparent channel of the LCD display. The optical component may be a camera, an ambient light sensor, an optical fingerprint sensor, or another component disposed under the display by using the local transparent region on the LCD display.

Abstract: A piano system is provided. A system including a keyboard including a plurality of keys; a plurality of sensors connected to the plurality of keys; a screen; at least one processor, and a non-transitory computer readable medium comprising instructions, the instructions, when executed by the at least one processor, causing the system to effectuate a method comprising: dividing the plurality of sensors into a first group and a second group; receiving a first sensor signal from the first group and a second sensor signal from the second group; generating a first parameter for the first group and a second parameter for the second group; generating a first sound control signal for the first group and a second sound control signal for the second group; generating visual information related to the first and the second sensor signal; and displaying the visual information on the screen.

Abstract: A display component includes a display panel. The display panel includes an array substrate and a counter substrate, and the display panel includes a display region, where the display region includes a pixel region, a transparent region, and a light shielding region. A first light shielding pattern located in the light shielding region is disposed on a side that is of the array substrate and that is away from the counter substrate, and the first light shielding pattern is disposed around the transparent region.

Abstract: A liquid crystal display (LCD) includes several transparent material layers and several non-transparent material layers that are disposed in a stacked mode. The LCD also a local transparent region, and no non-transparent material is applied to the several non-transparent material layers in the local transparent region. This forms a transparent channel in the local transparent region along a stacking direction. An optical component is completely or partially disposed in the transparent channel of the LCD display. The optical component may be a camera, an ambient light sensor, an optical fingerprint sensor, or another component disposed under the display by using the local transparent region on the LCD display.

Abstract: A display screen includes a display panel, a back light system, and an optical device concealed under the display panel, where a transmission light path formed by light rays received or transmitted by the optical device passes through the display screen. The display screen includes the fill-in light system, where the fill-in light system is disposed between the back light system and the optical device. The fill-in light system includes a first light source and a light guide member configured to transmit a light ray emitted by the first light source.

Abstract: A method for calculating an optimal wheel position control angle of passenger boarding bridge automatic docking system includes collecting ranging information of a sensor to rotate the bridgehead direction via a distance measuring sensor on both sides of the bridgehead of the passenger boarding bridge, making the bridgehead parallel to the aircraft fuselage; collecting information of an aircraft door by a camera at the bridge head of the passenger boarding bridge to obtain a center position D of the aircraft door; in an ideal docking situation, the aircraft door should appear at the bridge head position as D?; the position where D? is projected vertically onto the aircraft fuselage is D?, that is, the line segment DD? is the horizontal distance deviation between the current passenger boarding bridge and the aircraft door, the line segment D?D? is the distance between the current boarding bridge and the aircraft fuselage.