Abstract: A magnetic resonance multi-core radio frequency coil device includes a first birdcage coil and a second birdcage coil coaxially nested. The first birdcage coil includes four first end rings arranged along an axial direction and multiple first leg structures. Each first leg structure is connected to the four first end rings. The second birdcage coil includes two second end rings arranged along the axial direction and multiple second leg structures. Each second leg structure is connected to the two second end rings. The first birdcage coil is configured to transmit and receive radio frequency energy at frequencies corresponding to three different nuclides. The second birdcage coil is configured to transmit and receive radio frequency energy at a frequency corresponding to a nuclide. The nuclides corresponding to the first birdcage coil are different from the nuclide corresponding to the second birdcage coil.

Abstract: A system for causing a display of a video on an original equipment manufacturer (OEM) display of a land vehicle; it has a camera for generating the video, the camera for fastening to the vehicle; and a router for communicating with the camera, comprising a wireless input/output interface; and a controller configured to receive via the input/output interface an Internet signal through tethering using a short-range wireless network generated by the portable computer; generate an Internet signal from the local wireless network generated by a portable computer to enable WiFi by the vehicle; transmit a command to the camera to start producing a video and to transmit the video to the router; receive the video from the camera; and transmit wirelessly the received video to an IP address of a web server hosted locally by the router; and a method of use thereof.

Abstract: A system for causing a display of a video on an original equipment manufacturer (OEM) display of a land vehicle; it has a camera for generating the video, the camera for fastening to the vehicle; and a router for communicating with the camera, comprising a wireless input/output interface; and a controller configured to receive via the input/output interface an Internet signal through tethering using a short-range wireless network generated by the portable computer; generate an Internet signal from the local wireless network generated by a portable computer to enable WiFi by the vehicle; transmit a command to the camera to start producing a video and to transmit the video to the router; receive the video from the camera; and transmit wirelessly the received video to an IP address of a web server hosted locally by the router; and a method of use thereof.

Abstract: A method for rendering hair is provided and includes: obtaining a first rendered result by performing transparent channel test rendering on a specified pixel point in a hair model, wherein the specified pixel point is a pixel point with a pixel depth value less than a preset depth threshold and a transparency channel value greater than a preset transparency threshold; obtaining a second rendered result by performing transparent channel hybrid rendering on a backlight pixel point of the hair model based on the first rendered result; obtaining a third rendered result by performing transparent channel hybrid rendering on a light-oriented pixel point of the hair model based on the second rendered result; obtaining a final rendered result of the hair model by hybridizing the first rendered result, the second rendered result and the third rendered result.

Abstract: Provided in the present invention are a method for identifying HER2-enriched subtype breast cancer or HER2-enriched-like subtype breast cancer by means of measuring and comparing the expression level of ERBB2 mRNA and the expression level of ESR1 mRNA or by means of measuring and comparing the ratio of HER-positive cells and the ratio of ER-positive cells, a kit, an apparatus, and the use of a corresponding detection reagent for identifying HER2-enriched subtype breast cancer or HER2-enriched-like subtype breast cancer.

Abstract: A magnetic resonance multi-core radio frequency coil device includes a first birdcage coil and a second birdcage coil coaxially nested. The first birdcage coil includes four first end rings arranged along an axial direction and multiple first leg structures. Each first leg structure is connected to the four first end rings. The second birdcage coil includes two second end rings arranged along the axial direction and multiple second leg structures. Each second leg structure is connected to the two second end rings. The first birdcage coil is configured to transmit and receive radio frequency energy at frequencies corresponding to three different nuclides. The second birdcage coil is configured to transmit and receive radio frequency energy at a frequency corresponding to a nuclide. The nuclides corresponding to the first birdcage coil are different from the nuclide corresponding to the second birdcage coil.

Abstract: Provided is a quad-core radio-frequency coil circuit. The quad-core radio-frequency coil circuit includes a coil module (1) and a front-end module (2). The coil module (1) is configured to receive a nuclear magnetic test signal and, according to the nuclear magnetic test signal, generate an induction signal. The front-end module (2) is connected to the coil module (1) and configured to generate the nuclear magnetic test signal and collect the induction signal.

Abstract: A method and apparatus for measuring and calculating a full life cycle carbon emission equivalent of a power battery, and medium. The method comprising: acquiring a first carbon emission equivalent of a raw material acquisition stage of a power battery; acquiring a second carbon emission equivalent of a production stage of the power battery; acquiring a third carbon emission equivalent of a usage stage of the power battery; acquiring a fourth carbon emission equivalent of a cascading utilization stage and a regeneration stage of the power battery; measuring and calculating the full life cycle carbon emission equivalent of the power battery on the basis of the first carbon emission equivalent, the second carbon emission equivalent, the third carbon emission equivalent, and the fourth carbon emission equivalent.

Abstract: An electric grid includes feed-ins, loads, and a distribution grid, which is arranged therebetween. The distribution grid comprises at least one busbar and at least one device for opening or closing a DC circuit. The at least one device includes an electric switch for opening or closing the DC circuit, a fault current detector, a trigger unit, a precharging device, and a control unit for automatically closing the electric switch after the precharging process. The electric switch opens the DC circuit via the trigger unit if a fault current is detected by the fault current detector, and the precharging device restores the voltage on the busbar prior to closing the electric switch.

Abstract: A method for detecting internal short circuit of a power battery, comprising: simulating a triggered internal short circuit fault during operation process of the battery, sorting the parameters according to the order of the abnormal value occurrence time, calculating a weight coefficient of each characteristic parameter through the abnormal value occurrence time and analytical hierarchy process to ensure calculation consistency ratio is less than 0.1; collecting data of battery parameters during operation; if a certain judgement characteristic parameter exceeds the set threshold, a risk coefficient of the characteristic parameter is calculated; a risk value of the internal short circuit of the battery is calculated according to the weight coefficient and the risk coefficient; if the risk value continues to rise, it is determined that the battery has internal short circuit.

Abstract: A computing device operating on a Linux or Android platform for adding features to an in-vehicle infotainment system of a vehicle; it has an input/output interface; a power source input; a processor; and memory storing program code that, when executed by the processor, causes the processor to receive an Android-based smartphone infotainment application program; scan program code of the Android-based smartphone infotainment application program using a predefined pattern to locate a base certificate in the program code of the Android-based smartphone infotainment application program; generate a certificate-key pair from the base certificate; transmit the certificate of the certificate-key pair to the infotainment system for authentication and to enable communication with an Android protocol between the computing device and the infotainment system; and cause a display of information associated with a feature application program for display on the infotainment system; methods of use thereof.

Abstract: A computing device operating on a Linux or Android platform for adding features to an in-vehicle infotainment system of a vehicle; it has an input/output interface; a power source input; a processor; and memory storing program code that, when executed by the processor, causes the processor to receive an Android-based smartphone infotainment application program; scan program code of the Android-based smartphone infotainment application program using a predefined pattern to locate a base certificate in the program code of the Android-based smartphone infotainment application program; generate a certificate-key pair from the base certificate; transmit the certificate of the certificate-key pair to the infotainment system for authentication and to enable communication with an Android protocol between the computing device and the infotainment system; and cause a display of information associated with a feature application program for display on the infotainment system; methods of use thereof.

Abstract: A hybrid circuit breaker includes a semiconductor circuit breaker, connected between a first output end of a converter of a power supply or a source branch and a first end of a damping module; a first mechanical circuit breaker, connected in parallel to the semiconductor circuit breaker, an energy absorber, connected in parallel to the semiconductor circuit breaker, and a controller coupled to the semiconductor circuit breaker and the first mechanical circuit breaker, and when a current flowing through the converter is greater than a safe current, the controller is configured to control the first mechanical circuit breaker to be disconnected, and control the semiconductor circuit breaker to be closed.

Abstract: A method for controlling a solid state circuit breaker includes detecting a direction of a current flowing through the solid state circuit breaker, obtaining a breaking current value of the solid state circuit breaker according to the detected direction of the current, obtaining a value of a maximum threshold current to flow through the solid state circuit breaker, obtaining a predicted current value within a next sampling period of a present sampling period of the solid state circuit breaker, comparing the predicted current value with the breaking current value, and upon the predicted current value being greater than the breaking current value, delaying the solid state circuit breaker, and upon the predicted current value being greater than the maximum threshold current value, controlling the solid state circuit breaker to disconnect a circuit in which the solid state circuit breaker resides.

Abstract: Provided are a grid fault detection method and a device. The grid includes at least one AC power source provided by a public grid. The AC power source is coupled to a plurality of parallel circuits, each including a plurality of parallel branches. The parallel branches are each connected with a load and/or a DC power source. The grid fault detection method having the distributed energy resource includes: selecting a first collection point between the AC power source and the plurality of parallel circuits, and collecting a current value and a current direction of the first collection point; comparing an output current and an input current of the first collection point, and upon the input current being greater than the output current, it is determined that the plurality of parallel circuits are faulty. Accordingly, the plurality of collection points check the fault, so as to trigger a protection device.

Abstract: A method for rendering hair is provided and includes: obtaining a first rendered result by performing transparent channel test rendering on a specified pixel point in a hair model, wherein the specified pixel point is a pixel point with a pixel depth value less than a preset depth threshold and a transparency channel value greater than a preset transparency threshold; obtaining a second rendered result by performing transparent channel hybrid rendering on a backlight pixel point of the hair model based on the first rendered result; obtaining a third rendered result by performing transparent channel hybrid rendering on a light-oriented pixel point of the hair model based on the second rendered result; obtaining a final rendered result of the hair model by hybridizing the first rendered result, the second rendered result and the third rendered result.

Abstract: A computing device operating on a Linux or Android platform for adding features to an in-vehicle infotainment system of a vehicle; it has an input/output interface; a power source input; a processor; and memory storing program code that, when executed by the processor, causes the processor to receive an Android-based smartphone infotainment application program; scan program code of the Android-based smartphone infotainment application program using a predefined pattern to locate a base certificate in the program code of the Android-based smartphone infotainment application program; generate a certificate-key pair from the base certificate; transmit the certificate of the certificate-key pair to the infotainment system for authentication and to enable communication with an Android protocol between the computing device and the infotainment system; and cause a display of information associated with a feature application program for display on the infotainment system; methods of use thereof.

Abstract: Provided is a quad-core radio-frequency coil circuit. The quad-core radio-frequency coil circuit includes a coil module (1) and a front-end module (2). The coil module (1) is configured to receive a nuclear magnetic test signal and, according to the nuclear magnetic test signal, generate an induction signal. The front-end module (2) is connected to the coil module (1) and configured to generate the nuclear magnetic test signal and collect the induction signal.

Abstract: The present disclosure belongs to the technical field of separation and purification of glycolic acid, and in particular, to a method and device for separation and purification of glycolic acid by a rectification-crystallization coupling process and use. Bio-based platform compound molecules are used as raw materials to synthesize the glycolic acid, and the obtained crude glycolic acid is separated and purified using the rectification-crystallization coupling process to obtain high-purity glycolic acid. The method initiates system separation and purification under a new glycolic acid synthesis route, which has the difficulty that the glycolic acid is easy to polymerize during concentration, so there are technical barriers to equipment design of vacuum rectification and adjustment of process parameters. In addition, during crystallization, there are technical barriers to equipment design of a crystallization kettle and adjustment of process parameters.

Abstract: A nanogrid and a virtual inverter controller for the nanogrid are disclosed. The nanogrid includes at least one parallel branch, and at least one branch is equipped with a protector. At least one of the protectors is equipped with one virtual inverter controller. The virtual inverter controller includes a sensor component configured to detect at least one characteristic parameter on the branch, and a control component affecting the electrical connection state of the corresponding protector of the virtual inverter controller according to the characteristic parameter.