Abstract: An autonomous cleaning device and a noise reduction air duct device are provided for autonomous cleaning device. The autonomous cleaning device includes a body and a motor arranged on the body, and the noise reduction air duct device is mounted on the body. The noise reduction air duct device includes an upper housing, a lower housing and a support noise reduction structure made of elastic material. The lower housing and the upper housing enclose to form an air duct, an air inlet is arranged at a position of the air duct corresponding to the motor, and an air outlet is arranged on a side of the air duct away from the air inlet; the support noise reduction structure has a first end fixed on the lower housing, and a second end abutting against a lower surface of the upper housing.

Abstract: A fan braking structure includes a fan including a frame having an upright bearing cup, and a fan impeller having a vertical rotating shaft pivotally received in the bearing cup and provided at a free end with a groove; a braking structure located at a lower part of the bearing cup and including a brake plate and an electromagnet, and the brake plate being provided at one side with a protruded brake pin and at another side with a magnetic member; and an elastic element disposed between and pressed against a top of the shell and the brake plate. When the fan is inactive, the electromagnet is energized to produce magnetic poles that repel the magnetic member and compress the elastic element, such that the brake pin is magnetically pushed toward the rotating shaft to engage with the groove, causing the fan to brake and stop rotating inertially.

Abstract: A method for defect inspection includes receiving a substrate having a plurality of patterns; obtaining a gray scale image of the substrate, wherein the gray scale image includes a plurality of regions, and each of the regions has a gray scale value; comparing the gray scale value of each region to a gray scale references to define a first group, a second group and an Nth group, wherein each of the first group, the second group and the Nth group has at least a region; performing a calculation to obtain a score; and when the score is greater than a value, the substrate is determined to have an ESD defect, and when the score is less than the value, the substrate is determined to be free of the ESD defect.

Abstract: A method for evaluating a risk of a subject getting a specific disease includes steps of: storing a reference database that contains original parameter sets; selecting target alleles from an SNP profile derived from genome sequencing data of a subject; selecting target parameter sets from among the original parameter sets; calculating, for each of the target parameter sets, a race factor based on a global risk allele frequency and a group-specific risk allele frequency included in the target parameter set; calculating a genetic factor based on statistics, global reference allele frequencies, the race factors for the target parameter sets, and numbers of chromosomes in homologous chromosome pairs included in the target parameter sets; calculating a citation factor based on numbers of citation times included in the target parameter sets; and calculating a risk score based on the genetic factor and the citation factor.

Abstract: A fan brake structure includes a fan and a brake device. The fan has a frame body, a fan impeller and a stator. The brake device is disposed under a bottom of a bearing cup. The brake device has a driving member, a brake member and an elastic member. The elastic member abuts against one end of the brake member. The other end of the brake member has a boss body. The driving member has a spiral rail. When the driving member rotates, the boss body moves along the spiral rail, whereby the brake member linearly reciprocally moves upward to brake the fan impeller or linearly reciprocally moves downward to release the fan impeller from the braking.

Abstract: A fan braking structure includes a fan including a frame having an upright bearing cup, and a fan impeller having a vertical rotating shaft pivotally received in the bearing cup and provided at a free end with a groove; a braking structure located at a lower part of the bearing cup and including a brake plate and an electromagnet, and the brake plate being provided at one side with a protruded brake pin and at another side with a magnetic member; and an elastic element disposed between and pressed against the brake plate and the electromagnet. When the fan is powered off, the electromagnet is energized and produces magnetic poles that magnetically repel the magnetic member, such that the brake pin is pushed by a magnetic force and the elastic element toward the rotating shaft to engage with the groove, causing the fan to brake and stop rotating inertially.

Abstract: An intelligent electronic lock for receiving an identification signal and an induction signal includes a housing, a wireless sensor, a current divider, a microcontroller, a driver and at least one blocking element. The wireless sensor, the current divider, the microcontroller and at least one blocking element are disposed in the housing. An induction coil of the wireless sensor senses the induction signal to generate an induction current. The wireless sensor receives the identification signal. The current divider distributes the induction current to the microcontroller and the driver. The microcontroller obtains a target identification information from the identification signal. The microcontroller compares the target identification information with a reference identification information to output a control signal. The driver drives at least one blocking element to move between an unlocking position and a locking position.

Abstract: An optical connector assembly (100) includes a housing (110), an optical ferrule (140); and an optical fiber array (150). The housing (110) has a mating end (111) and an opposite cable end (112) and includes: a first housing portion (120) including a front support (122) proximate the mating end (111) and a rear support (124) disposed between the front support (122) and the cable end (112); and a second housing portion (130) assembled to the first housing portion (120) and including a middle support (133) disposed between the front and rear supports (122,124). The ferrule (140) is supported by the front support (122). Front ends of optical fibers of the optical fiber array (150) are received by and attached to an attachment area of the ferrule (140). When the second housing portion (130) is assembled to the first housing portion (120), the middle support (133) of the second housing portion (130) contacts and bends the optical fiber array (150) about the middle support (133).

Abstract: A fan braking structure includes a fan including a frame having an upright bearing cup, and a fan impeller having a vertical rotating shaft pivotally received in the bearing cup and provided at a free end with a groove; a braking structure located at a lower part of the bearing cup and including a brake plate and an electromagnet, and the brake plate being provided at one side with a protruded brake pin and at another side with a magnetic member; and an elastic element disposed between and pressed against a top of the shell and the brake plate. When the fan is inactive, the electromagnet is energized to produce magnetic poles that repel the magnetic member and compress the elastic element, such that the brake pin is magnetically pushed toward the rotating shaft to engage with the groove, causing the fan to brake and stop rotating inertially.

Abstract: A fan brake structure includes a fan and a brake device. The fan has a frame body, a fan impeller and a stator. The brake device is disposed under a bottom of a bearing cup. The brake device has a driving member, a brake member and an elastic member. The elastic member abuts against one end of the brake member. The other end of the brake member has a boss body. The driving member has a spiral rail. When the driving member rotates, the boss body moves along the spiral rail, whereby the brake member linearly reciprocally moves upward to brake the fan impeller or linearly reciprocally moves downward to release the fan impeller from the braking.

Abstract: A fan braking structure includes a fan including a frame having an upright bearing cup, and a fan impeller having a vertical rotating shaft pivotally received in the bearing cup and provided at a free end with a groove; a braking structure located at a lower part of the bearing cup and including a brake plate and an electromagnet, and the brake plate being provided at one side with a protruded brake pin and at another side with a magnetic member; and an elastic element disposed between and pressed against the brake plate and the electromagnet. When the fan is powered off, the electromagnet is energized and produces magnetic poles that magnetically repel the magnetic member, such that the brake pin is pushed by a magnetic force and the elastic element toward the rotating shaft to engage with the groove, causing the fan to brake and stop rotating inertially.

Abstract: A liquid cooling heat dissipation system is provided. The system includes a first heat dissipation device, a first heat absorption device, a second heat dissipation device, a second heat absorption device, and a pump connected with the first heat dissipation device, the first heat absorption device, the second heat dissipation device or the second heat absorption device. The first heat dissipation device, the first heat absorption device, the second heat dissipation device and the second heat absorption device are connected in sequence.

Abstract: An automatic cleaning apparatus includes: a chassis; a front housing arranged at a front end of the chassis; and a sensing device capable sensing movement of the front housing and sending a signal to a control mainboard of the automatic cleaning apparatus when the front housing touches an obstacle and moves relative to the chassis. The sensing device includes a dust blocking member and a rocker arm that triggers the sensing device to send the signal. The rocker arm has a first end rotatably arranged inside the sensing device, and a second end passing through the dust blocking member and extending out of the sensing device. A front housing reset device is arranged on the chassis and capable of biasing the front housing toward an initial position of the front housing.

Abstract: The present invention provides a clock buffer, wherein the clock buffer receives an input signal at a first node and generate an output signal at a second node. The clock buffer includes a P-type transistor, a first N-type transistor, a resistor, a transistor and a switch. A source electrode, a gate electrode and a drain electrode of the P-type transistor are coupled to a supply voltage, the first node, and the second node, respectively. A gate electrode, a drain electrode and a source electrode of the first N-type transistor are coupled to the first node, the second node and a third node, respectively. The resistor is coupled between the first node and the second node. The transistor is coupled between the first N-type transistor and a ground voltage. The switch is configured to selectively connect the third node to the ground voltage.

Abstract: A low-dropout regulator circuit includes a reference circuit, an amplifying circuit, a power switch circuit, a feedback circuit, and a control circuit. The reference circuit is configured to generate a reference voltage. The amplifying circuit is configured to generate an amplifying voltage according to the reference voltage and a feedback voltage. The power switch circuit is configured to receive the amplifying voltage and generate an output voltage at an output terminal according to an input voltage. The feedback circuit is configured to generate the feedback voltage according to the output voltage. The control circuit is configured to control the power switch circuit according to the input voltage and a signal from the reference circuit.

Abstract: A bendable joint includes a first articulation pipe, a second articulation pipe, and a lock. The first articulation pipe includes a first articulation portion at one end. The second articulation pipe includes a second articulation portion at one end. The first articulation portion is articulated with the second articulation portion so that the first articulation pipe is rotatable relative to the second articulation pipe. The lock is on the first articulation pipe and is configured to lock and adjust relative positions of the first articulation pipe and the second articulation pipe.

Abstract: A display panel and an electronic device are provided. The display panel includes a substrate including a display area and a frame area surrounding the display area, a plurality of sub-pixels located in the display area, and a plurality of pins and a plurality of alignment marks located in the frame area. The plurality of pins includes a first pin and a second pin. At least one alignment mark of the plurality of alignment marks is a first photosensitive element. The first photosensitive element is connected to the first pin. The second pin is connected to the plurality of sub-pixels.