Abstract: A buzzer circuit includes a control unit, a constant current unit, and a buzzer. The buzzer circuit is coupled to a drive circuit. The buzzer includes a power pin and a ground pin. The constant current unit includes a constant voltage component and a first resistor. When the power pin of the buzzer receives a high level drive signal, the constant voltage component provides a constant voltage, controlled by the control unit, to the first resistor, and the ground pin is coupled to ground through the first resistor, and the buzzer buzzes steadily.

Abstract: A buzzer circuit includes an amplifier U, a first electronic switch and a second electronic switch, a first resistor and a second resistor, and a buzzer. The buzzer circuit is coupled to a drive circuit for receiving a drive signal. The first electronic is turned on and when the power pin of the buzzer receives a high level drive signal, the second electronic switch is turned on, and the buzzer buzzes steadily.

Abstract: An hnRNP A2* protein, including an amino acid sequence represented by SEQ ID NO. 1. The protein is a complete protein, a protein fragment, a protein analogue or a protein derivative.

Abstract: An alignment method for liquid crystal panel is disclosed. The method includes: providing a first substrate with a first alignment layer and a second substrate with a second alignment layer; dividing both of the first alignment layer and the second alignment layer to at least one subarea, each subareas comprises a plurality of alignment areas, a predetermined alignment direction of the alignment area of the first alignment layer is vertical to that of the corresponding alignment area of the second alignment layer; radiating each alignment areas of the first alignment layer and the second alignment layer by polarized beams of different directions so as to form the alignment films with predetermined alignment direction corresponding to each alignment areas. In addition, a corresponding liquid crystal device is disclosed. The above-mentioned method and device have good alignment results, and the color shift issue at wide viewing angle is enhanced.

Abstract: An example method includes capturing, by an image capture device of a computing device, an image of a face of a user. The method further includes detecting, by the computing device, whether a distance between the computing device and an object represented by at least a portion of the image is less than a threshold distance, and, when the detected distance is less than a threshold distance, denying authentication to the user with respect to accessing one or more functionalities controlled by the computing device, where the authentication is denied independent of performing facial recognition based at least in part on the captured image.

Abstract: Disclosed is an air conditioning system, comprising M outdoor units (101) for providing warm or cold sources, M being a positive integer; N indoor units (102) for receiving a warm or cold source supplied by one or more of the at least one outdoor unit (101), N being a positive integer; a control system (103) comprising a lubricating oil distributing subsystem (1031) connected to the M outdoor units (101); a cold medium distributing subsystem (1032) connected to the M outdoor units (101); and a control subsystem (1033) connected to the M outdoor units (101), the N indoor units (102), the lubricating oil distributing subsystem (1031) and the cold medium distributing subsystem (1032). Further disclosed are a control system and an air-conditioning control method.

Abstract: Methods and apparatus are disclosed co-culturing stem cells with mononuclear cells and/or lymphocytes to modulate their function. The invention also discloses the use of stem cells to educate autoreactive immune cells as a mechanism to treat autoimmune diseases and immune disorder-related diseases, such as diabetes. In one aspect of the invention, bioreactors are disclosed closed for modulating lymphocytes and suppressing autoreactive T cells. The bioreactors can include a chamber having at least one positively charged and/or hydrophobic substrate surface, a population of stem cells attached to the substrate surface, an inlet conduit for introducing lymphocytes into the chamber, and an outlet conduit for extracting treated lymphocytes following co-culturing with the stem cells.

Abstract: A liquid crystal device is disclosed. The liquid crystal device includes a TFT array substrate, a CF substrate, and a liquid crystal layer. The TFT array substrate includes a first electrode layer and a first alignment layer covering the first electrode layer. A color CF layer is formed between a glass substrate and a passivation layer of the TFT array substrate. The TFT array substrate further includes a black matrix and a photo spacer arranged thereon. The CF substrate includes a second electrode layer and a second alignment layer covering the second electrode layer. The liquid crystal layer is arranged between the first alignment layer and the second alignment layer. In addition, a manufacturing method of the liquid crystal device is disclosed. In this way, the liquid crystal devices have good alignment effects, and the color shift issues at wide viewing angle and the aperture rate are enhanced.

Abstract: Systems and methods for providing constant airflow based on direct motor power control and advanced motor system modeling are described. A power and speed of a motor may be determined based on static pressure in the system. A target airflow rate for the system may be obtained, and a target motor power that yields the target airflow rate in the system may be determined based on the determined speed of the motor and the obtained target airflow rate for the system. A determination of whether the determined motor power is approximately equal to the target motor power may be made, and the power of the motor may be adjusted when the motor power is not approximately equal to the target motor power.

Abstract: A DC permanent magnet synchronous motor, including: a motor body including a rotating shaft, a permanent rotor assembly, a stator assembly, and a housing assembly; a motor controller including a first microprocessor for drive control, an inverter circuit, and a detection circuit for detecting operating parameters of the motor; and an external control card including a second microprocessor for application control. The operating parameters of the motor are input into the first microprocessor by the detection circuit. The first microprocessor outputs a PWM signal to control the inverter circuit. An output end of the inverter circuit is connected to a coil winding. The external control card is disposed outside the motor body and is connected to the motor body via an electric wire. The second microprocessor and the first microprocessor are interconnected so that they can communicate.

Abstract: A method for increasing rotational speed range of an ECM motor, including: 1) starting the motor and initializing parameters; 2) reading the rotor position signal from the hall sensor by the microprocessor and updating the rotor angle; 3) reading the DC bus current I and the rotational speed n of the motor; 4) inputting a target rotational speed S from an external device, acquiring the target rotational speed S by the microprocessor, calculating the rotational difference e, and utilizing a rotational speed PI regulator to output a regulating parameter V_D; 5) calculating an advance angle ?=F(I, n) by the microprocessor, and calculating a real-time angle of the rotor ?=?×t by the microprocessor; and 6) calculating a PWM signal input into the inverter circuit, and outputting a PWM chopper voltage U by the inverter circuit, where U=F(V_D, ?+?).

Abstract: A daughter circuit board of an electronically commutated motor for interface signal conversion, including circuit units integrated on the daughter circuit board and five ports for communicating with a control system of a user terminal. The five ports include: a R/T port, a Vcc port, a Common port, a Vsp port, and an FG port.

Abstract: A controlling circuit for a fan includes three comparators, a capacitor, and a thermistor. When the temperature around the thermistor changes, the resistance of the thermistor changes. The comparators control the charging and discharging time of the capacitor, thereby generating a corresponding pulse width modulation signal to the fan according to the temperature, to adjust the speed of the fan.

Abstract: The present disclosure relates to liquid crystal displays, particularly a liquid crystal display panel and a method for manufacturing the same. The liquid crystal display panel according to the present disclosure includes an array substrate, a color filter substrate, and a liquid crystal layer between the array substrate and the color filter substrate, wherein a polarizer is arranged on one side of the color filter substrate away from the liquid crystal layer and provided with a polarizing film layer for filtering the polarizing direction of light and a phase retardation film layer fixed on the polarizing film layer, and the phase retardation film layer is made of triacetate cellulose, and can convert linearly polarized light entering the phase retardation film layer into circularly polarized light.

Abstract: A liquid crystal device is disclosed. The liquid crystal device includes a TFT array substrate, a CF substrate, and a liquid crystal layer. The TFT array substrate includes a first electrode layer and a first alignment layer covering the first electrode layer, and a black matrix and a photo spacer arranged thereon. The CF substrate includes a second electrode layer and a second alignment layer covering the second electrode layer. The liquid crystal layer is arranged between the first alignment layer of the TFT array substrate and the second alignment layer of the CF substrate. In addition, a manufacturing method of the liquid crystal device is disclosed. In this way, the liquid crystal devices have good alignment effects, and the color shift issues at wide viewing angle and the aperture rate are enhanced.

Abstract: A liquid crystal device is disclosed. The liquid crystal device includes a TFT array substrate, a color film (CF) substrate, and a liquid crystal layer. The TFT array substrate includes a first electrode layer and a first alignment layer covering the first electrode layer. A CF layer is formed between a glass substrate and a passivation layer of the TFT array substrate, and a black matrix is arranged on the TFT array substrate. The CF substrate includes a second electrode layer and a second alignment layer covering the second electrode layer. The liquid crystal layer is arranged between the first alignment layer of the TFT array substrate and the second alignment layer of the CF substrate. A manufacturing method of the liquid crystal device is disclosed. The liquid crystal devices have good alignment effects, and the color shift issues at wide viewing angle and the aperture rate are enhanced.

Abstract: The present disclosure proposes a type of three-dimensional eyeglasses, including a polarizer and a first wave plate on one side of the polarizer, the first wave plate is a quarter-wavelength wave plate and includes a first left lens and a first right lens corresponding to the left eye and the right eye of a user respectively, the optical axis of the first left lens is vertical to that of the first right lens, and the angles formed between the direction of the transmission axis of the polarizer and those of the optical axes of the first left lens and the first right lens are both 45 degrees, wherein, a second wave plate is arranged on the side of the polarizer away from the first wave plate, the light from a screen passes through the first wave plate, the polarizer and the second wave plate and is then emitted, and the second wave plate is arranged in such a manner that the light emitted after passing through the three-dimensional eyeglasses is circularly polarized light.

Abstract: Systems and techniques are disclosed for visually rendering a requested scene based on a virtual camera perspective request as well as a projection of two or more video streams. The video streams can be captured using two dimensional cameras or three dimensional depth cameras and may capture different perspectives. The projection may be an internal projection that maps out the scene in three dimensions based on the two or more video streams. An object internal or external to the scene may be identified and the scene may be visually rendered based on a property of the object. For example, a scene may be visually rendered based on where an mobile object is located within the scene.

Abstract: Example methods and devices are disclosed for generating life-logs with point-of-view images. An example method may involve: receiving image-related data based on electromagnetic radiation reflected from a human eye, generating an eye reflection image based on the image-related data, generating a point-of-view image by filtering the eye reflection image, and storing the point-of-view image. The electromagnetic radiation reflected from a human eye can be captured using one or more video or still cameras associated with a suitably-configured computing device, such as a wearable computing device.

Abstract: Aspects of the present disclosure relate to controlling the functions of various devices based on spatial relationships. In one example, a system may include a depth and visual camera and a computer (networked or local) for processing data from the camera. The computer may be connected (wired or wirelessly) to any number of devices that can be controlled by the system. A user may use a mobile device to define a volume of space relative to the camera. The volume of space may then be associated with a controlled device as well as one or more control commands. When the volume of space is subsequently occupied, the one or more control commands may be used to control the controlled device. In this regard, a user may switch a device on or off, increase volume or speed, etc. simply by occupying the volume of space.