Abstract: A light guide module includes a cover plate, a light-shielding layer, a light guide plate, and at least one light source. The light-shielding layer is disposed under the cover plate and has a width less than about 4 mm. The light guide plate is disposed under the cover plate. The light guide plate has a reflective surface and a light-exiting surface opposite to each other, and a light-incident surface and three side surfaces connected between the reflective surface and the light-exiting surface. The light source is configured to emit light toward the light-incident surface. A surface roughness of the three side surfaces ranges from about 300 nm to about 400 nm, so that a change rate of brightness measured by any adjacent two of measuring points evenly distributed on the light-exiting surface is between about 8% and about 12%.

Abstract: An electronic device includes a middle frame, a first flexible printed circuit FPC, a second FPC and a battery. Projections of the first FPC and the second FPC on the middle frame have a first overlapping region. The first overlapping region is located inside a projection of the battery on the middle frame and is far away from an edge of the battery. A first through hole is disposed on the middle frame. The first overlapping region is located in the first through hole. The electronic device provided in this application can implement reduction of an overall thickness, so that the electronic device provides better user experience.

Abstract: A wearable device includes an annular-shaped wearing member and a first coil. The annular-shaped wearing member includes an outer annular surface, the first coil is accommodated inside the annular-shaped wearing member, and a laying surface of the first coil is arranged along a circumferential direction of the annular-shaped wearing member. An electronic device includes a second coil. In a case that the outer annular surface partially abuts against the electronic device, the first and second coils are disposed opposite to each other, and the first and second coils in an energized state generate magnetic field lines in a same direction. In a wearable system of the embodiments of the present disclosure, the wearable device can be charged while the electronic device is being used, which improves convenience of use of the wearable device.

Abstract: The present disclosure relates to a system and method for matching performance with score. The method may include acquiring performance information in a preset time period, wherein the performance information is related to a musical device. The method may also include analyzing the performance information and obtaining a played music score in the preset time period, wherein the played music score contains the performance information. The method may further include comparing the played music score with one or more standard music scores. The method may still further include identifying a standard music score from the one or more standard music score based on the comparison of the played music score with the one or more standard music scores, wherein a matching degree between the played music score and the identified standard music score reaches a preset value.

Abstract: A nasal irrigation diagnostic assembly comprising an irrigation device including a fluid collection portion structured to retain a biological sample, in the form of waste solution from the nasal cavity resulting from irrigation. A detection member disposed on said irrigation device is exposed to the biological sample and is structured to determine the existence of at least one analyte within the biological sample of the waste solution. The detection member comprises a plurality of detection zones individually structured to analyze the biological sample upon engagement therewith, wherein said plurality of zones include at least a reaction zone and a detection zone, which respectively include reagents cooperatively and collectively formulated to detect the existence of the at least one analyte within biological sample of the waste solution. A control zone may also be included to indicate the intended operability of at least the detection member.

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.

Abstract: Disclosed is a deflector disc of a disc tube membrane module, including a deflector disc body, radial water distribution ribs, an inner support ring and an outer support ring. Bulges are arranged on the front and back sides of the deflector disc body; first and second ends of the radial water distribution rib are respectively fixedly connected with an inner edge of the deflector disc body and an outer edge of the inner support ring, an annular boss is arranged on the front side of the inner support ring, a seal ring groove is respectively arranged at corresponding positions of the front and back sides of the inner support ring, multiple yielding water collecting grooves are annularly and uniformly distributed on the inner surface of the inner support ring; an inner edge of the outer support ring is fixedly connected with an outer edge of the deflector disc body.

Abstract: A terminal device and a sound-emitting apparatus arranged in the terminal device, where the terminal device includes a housing, a display is arranged on a surface of the housing, a notch is formed at an end of the display, and a camera system is arranged inside the housing. The camera system is arranged opposite to the notch in a direction perpendicular to the display, and a camera of the camera system is located inside the notch. A through-hole is arranged opposite to an opening of the notch in the housing in a direction parallel to the display.

Abstract: A method for generating a musical score based on user performance during playing a keyboard instrument may include detecting a status change of a plurality of execution devices of the keyboard instrument. The method may include generating a first signal according to the detected status change. The method may include generating a second signal indicating a plurality of timestamps. The method may include determining a tune of the musical score based on the first signal. The method may include determining a rhythm of the musical score based on the second signal. The method may further include generating the musical score based on the tune and the rhythm of the musical score.

Abstract: The present disclosure relates to systems, methods, and devices for music simulation. The methods may include determining one or more simulation actions based on data associated with one or more simulation actions acquired by at least one sensor. The methods may further include determining, based on at least one of the one or more simulation actions and a mapping relationship between simulation actions and corresponding musical instruments, a simulation musical instrument that matches with the one or more simulation actions. The methods may further include determining, based on the one or more simulation actions, one or more first features associated with the simulation musical instrument. The methods may further include playing music based on the one or more first features.

Abstract: The present disclosure is related to systems and methods for assisting a user in practicing a smart musical instrument. The method includes obtaining a real-time image of the user playing the smart musical instrument. The method also includes obtaining information associated with a current key being pressed and information associated with a plurality of reference fingerings from the smart musical instrument. The method also includes displaying the real-time image in real-time. The method also includes determining whether a current fingering associated with the current key being pressed matches with a reference fingering, of the plurality of reference fingerings, associated with the current key being pressed. In response to a determination that the current fingering associated with the current key being pressed does not match the reference fingering, the method further includes generating a reminder. The method still further includes displaying the reference fingering corresponding to the current fingering.

Abstract: Disclosed is a method for treating wastewater containing heavy metal. First, the wastewater containing heavy metal is subjected to a homogenization treatment, such that the water quality of the wastewater containing heavy metal from different processes is homogenized. The homogenized wastewater containing heavy metal is subjected to an anaerobic-aerobic circulating treatment in a membrane bioreactor (2), in which heavy metal ions are reduced by the action of microorganisms in the anaerobic treatment process. The membrane bioreactor (2) is filled with a hollow fiber membrane (3) containing a quinone group, which serves as an electron mediator that can accelerate the enzymatic reduction of heavy metal ions during the anaerobic treatment. During the aerobic treatment, the COD and SS in the wastewater are further removed.

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: The present disclosure relates to systems, methods, and devices for music simulation. The methods may include determining one or more simulation actions based on data associated with one or more simulation actions acquired by at least one sensor. The methods may further include determining, based on at least one of the one or more simulation actions and a mapping relationship between simulation actions and corresponding musical instruments, a simulation musical instrument that matches with the one or more simulation actions. The methods may further include determining, based on the one or more simulation actions, one or more first features associated with the simulation musical instrument. The methods may further include playing music based on the one or more first features.

Abstract: The present disclosure is related to systems and methods for assisting a user in practicing a smart musical instrument. The method includes obtaining a real-time image of the user playing the smart musical instrument. The method also includes obtaining information associated with a current key being pressed and information associated with a plurality of reference fingerings from the smart musical instrument. The method also includes displaying the real-time image in real-time. The method also includes determining whether a current fingering associated with the current key being pressed matches with a reference fingering, of the plurality of reference fingerings, associated with the current key being pressed. In response to a determination that the current fingering associated with the current key being pressed does not match the reference fingering, the method further includes generating a reminder. The method still further includes displaying the reference fingering corresponding to the current fingering.

Abstract: A display screen and an electronic device are provided. The display screen comprises a substrate, an encapsulation layer, and a display layer located between the substrate and the encapsulation layer. The display layer has at least one first through hole that penetrates to both side surfaces of the display layer. A first transparent filler is arranged within the at least one first through hole. In the display screen, arrangement of the transparent filler within the first through hole effectively reduces deformation of the substrate and the encapsulation layer, thereby preventing undesirable phenomena such as rainbow patterns.

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 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: 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.