Abstract: A thickness detector device and method, a detector system and a slot device are provided, and the thickness detector device includes: a base, which has a side wall provided with a through slot that penetrates through the base; a slot component at the base and has n slots, n being an integer greater than 1, and a width of each slot being less than a width of the through slot; a driver component which is provided on the base, is in a fixed connection with the slot component, and is configured to change the slot that is in the slot component and is in communication with the through slot by driving the slot component to move.

Abstract: Provided are a ground fault protection method and apparatus for a photovoltaic station output transmission line. A circuit breaker on a photovoltaic side is controlled by a control element. Whether measured zero sequence impedance on the photovoltaic side of a segment line has a large variation before and after an action of power grid side distance protection is determined, the variation of the measured zero sequence impedance is inputted into the control element, in condition that the variation of the measured zero sequence impedance is less than a setting value, a tripping signal is outputted to the circuit breaker on the photovoltaic side to isolate the fault; and in condition that the variation of the measured zero sequence impedance is greater than the setting value, photovoltaic side distance protection is not started.

Abstract: A coherent optical receiving apparatus includes a polarization beam splitting unit, an optical frequency mixing unit, and a combining unit. The polarization beam splitting unit is configured to receive local oscillator light in any polarization state, and perform polarization state split on the received local oscillator light to obtain first polarized light in a linear polarization state. The optical frequency mixing unit is configured to perform frequency mixing on the first polarized light and second polarized light, and output mixed light to the combining unit. The second polarized light is polarized light in a linear polarization state obtained by splitting signal light. The combining unit is configured to combine every two paths of light output by the optical frequency mixing unit into one path for output.

Abstract: Provided is a determination method of differential protection suitable for an electricity transmission line with multi-terminal T-connection.

Abstract: A thickness detector device and method, a detector system and a slot device are provided, and the thickness detector device includes: a base, which has a side wall provided with a through slot that penetrates through the base; a slot component at the base and has n slots, n being an integer greater than 1, and a width of each slot being less than a width of the through slot; a driver component which is provided on the base, is in a fixed connection with the slot component, and is configured to change the slot that is in the slot component and is in communication with the through slot by driving the slot component to move.

Abstract: A rehabilitation training system for lower limb rehabilitation comprises a function module comprising: a sensing unit that collects body function data comprising pedal pressure, exercise duration, and exercise mileage; and a mechanical structure module comprising: a driving unit and a linkage unit arranged on a frame; a groove plate for supporting a cam roller, a pedal for supporting the weight of the training object and driving the lower limb of the training object to move; a link for transmitting kinetic energy to the pedal; a rocker for supporting the link; a connecting bulge driving a guide shaft to rotate; a linear bearing supporting the guide shaft and an axis pin for connecting the link and the slider.

Abstract: A method for performing lower limb rehabilitation training comprises the steps of: (a) placing a training object's feet on a pedal in a limb rehabilitation training system, wherein the pedal comprises a pressure sensor and a location information sensor; (b) standing stably on the pedal to enable the pressure sensor on the pedal to record the body weight of the training object; and (c) sitting down on the saddle, thereby enabling: the pressure sensor on the pedal to monitor pressure variation between the training object and the pedal throughout the training of the training object, wherein the rehabilitation evaluating unit evaluates the physical status and rehabilitation status of the training object according to the physiological information and exercise information of the same collected by the sensing unit, and adjusts the exercise frequency and the exercise duration of the training object according to the physical status.

Abstract: A method and device for inspection or analysis of a semiconductor sample is provided. The method includes: sandwiching a processed semiconductor sample between two blocks of a semiconductor material; polishing the sandwiched sample such that an even surface is obtained; and measuring the surface of the sandwiched sample. The blocks of a semiconductor material comprise the same semiconductor material as the semiconductor sample.

Abstract: A prokaryotic expression system or a recombinant adenovirus system is used to highly efficiently express VZV envelope gE glycoprotein and the flagellin fusion protein thereof. The produced recombinant gE protein, gE flagellin fusion protein and recombinant adenovirus vector, or composition thereof is used to immunize a mouse so as to promote the body to generate gE and VZV-specific antibody titer, as well as gE-specific and VZV-specific cell immunity.

Abstract: A method for monitoring a solenoid valve, the method including: applying a test signal on one side of the solenoid valve, the solenoid valve having a control coil for controlling an air pressure in a brake cylinder of an electro-pneumatic brake, wherein the solenoid valve has a supply voltage side, at which the control coil takes up an electric supply current, and a reference potential side, at which the control coil delivers the electric supply current; tapping a measurement signal on the other side of the solenoid valve; and determining the state of the solenoid valve based on a juxtaposition of the test signal and of the measurement signal. Also described are a related control apparatus, an electro-pneumatic brake, and a computer readable medium.

Abstract: Embodiments of the present invention provide an optical transceiver including an optical interface, an optical receiver, and a polarization-maintaining optical waveguide, where the optical receiver includes a mixer, an optical-to-electrical converter, and a digital signal processor.

Abstract: A smart medical rehabilitation device comprises a driving unit, a linkage unit, a sensing unit and a rehabilitation evaluating unit that are mounted on a frame, wherein the linkage unit comprises a link mechanism and a slide mechanism linked thereto so that the slide mechanism can be moved together with the link mechanism, wherein the slide mechanism is driven by the driving unit to slide along the groove plate, the link mechanism is linked to move with the slide mechanism thus the link mechanism moves to the corresponding position so that the slide mechanism can assist a training object in performing lower limb rehabilitation training, and the rehabilitation evaluating unit evaluates the physical status and rehabilitation status of the training object according to the physiological information and exercise information of the same collected by the sensing unit, and adjusts the exercise frequency and the exercise duration of the training object according to the physical status in real time.

Abstract: A method and device for inspection or analysis of a semiconductor sample is provided. The method includes: sandwiching a processed semiconductor sample between two blocks of a semiconductor material; polishing the sandwiched sample such that an even surface is obtained; and measuring the surface of the sandwiched sample. The blocks of a semiconductor material comprise the same semiconductor material as the semiconductor sample.

Abstract: A medical apparatus for standing aid includes a backrest (4) that has at least one side thereof provided with a crank rocker mechanism that includes a crank mechanism (1), a triangle linkage mechanism (2), and a rocker mechanism (3), the crank mechanism (1) is rotatably connected to the triangle linkage mechanism (2) such that an included angle between a second driven link (BE) of the triangle linkage mechanism (2) and the crank mechanism (1) is always smaller than 90°, and the crank mechanism (1) driving the triangle linkage mechanism (2), the rocker mechanism (3) and the backrest (4) connected to the triangle linkage mechanism to perform interactive movement repeatedly along a predetermined curve trajectory in response to a driving force from a drive effect of a driving unit (100), so that the backrest (4) connected to the second driven link (BE) assists a trainee in standing up repeatedly by obliquely supporting the trainee's waist.

Abstract: A medical apparatus for standing aid includes a backrest (4) that has at least one side thereof provided with a crank rocker mechanism that includes a crank mechanism (1), a triangle linkage mechanism (2), and a rocker mechanism (3), the crank mechanism (1) is rotatably connected to the triangle linkage mechanism (2) such that an included angle between a second driven link (BE) of the triangle linkage mechanism (2) and the crank mechanism (1) is always smaller than 90°, and the crank mechanism (1) driving the triangle linkage mechanism (2), the rocker mechanism (3) and the backrest (4) connected to the triangle linkage mechanism to perform interactive movement repeatedly along a predetermined curve trajectory in response to a driving force from a drive effect of a driving unit (100), so that the backrest (4) connected to the second driven link (BE) assists a trainee in standing up repeatedly by obliquely supporting the trainee's waist.

Abstract: In a wireless charging system, a power-transmitting node (TX), has a processor, a memory, a power transmitter for transmitting power wirelessly to a power-receiving node (RX), and a signal receiver for receiving signals from the RX. After the processor detects the presence of a foreign object (FO) during a power-transfer session, the processor places the TX in a protection state. The processor detects whether the FO has been removed using quality factor (QF) values for the TX that the processor measures before and after detecting the presence of the FO, and without requiring any QF values calibrated off-line. The QF values include a QF value measured before the FO is present, a QF value measured just after the TX enters the protection state, and a current QF value that is repeatedly updated as long as the TX remains in the protection state.

Abstract: Provided are a differential protection method and system, applied to a multi-terminal T-connection transmission line. The method includes: selecting two slaves without a connection and connecting the two slaves to construct a slave group; determining a target slave and an auxiliary slave in the slave group, where a first communication path is connected along a channel one, a channel two and a channel three, and a second communication path is connected along the channel three, the channel two and the channel one; transmitting, by the target slave, two frames of messages, and acquiring a delay difference between a transceiving delay of the first communication path and a transceiving delay of the second communication path, where a first frame of messages is transmitted to the target slave via the first communication path, a second frame of messages is transmitted to the target slave via the second communication path.

Abstract: A compressor system (10) and an intake pipe (300) used for the compressor system (10), wherein the intake pipe (300) comprises: a lubricant separator (310), which is configured to separate a lubricant which is in a compression fluid flowing through the intake pipe (300); and a first lubricant supply pipe (340), which is configured to supply the separated lubricant to a first compressor (100) or a second compressor (200) in the compressor system (10).

Abstract: Provided are a differential protection method and system, applied to a multi-terminal T-connection transmission line. The method includes: selecting two slaves without a connection and connecting the two slaves to construct a slave group; determining a target slave and an auxiliary slave in the slave group, where a first communication path is connected along a channel one, a channel two and a channel three, and a second communication path is connected along the channel three, the channel two and the channel one; transmitting, by the target slave, two frames of messages, and acquiring a delay difference between a transceiving delay of the first communication path and a transceiving delay of the second communication path, where a first frame of messages is transmitted to the target slave via the first communication path, a second frame of messages is transmitted to the target slave via the second communication path.

Abstract: In a wireless charging system, a power-transmitting node (TX) has a transmitter for transmitting power wirelessly to a power-receiving node (RX), and a signal receiver for receiving signals from the RX. During a power-transfer session, the TX accumulates data corresponding to its transmitted power level, detects an end of a received power (RP) packet from the RX, and then identifies a subset of the accumulated data. The TX calculates its transmitted power level using the subset of the accumulated data. The TX extracts a received power level of the RX from the received RP packet and compares its calculated transmitted power level with the RX's received power level to determine a presence of a foreign object. Accuracy of FO detection when packets from the RX are not properly received by the TX is improved.