Abstract: A depolymerizer is formed by grafting thiol groups on parts of the double bonds of a polymer of linear conjugated diene monomer. The linear conjugated diene monomer can be 1,3-butadiene, isoprene, 1,3-pentadiene, 2,3-dimethyl-1,3-butadiene, 2-methyl-1,3-pentadiene, 2,3-dimethyl-1,3-pentadiene, 2-phenyl-1,3-butadiene, or 4,5-diethyl-1,3-octadiene. The depolymerizer has a weight average molecular weight of 1000 to 400000.

Abstract: A curriculum optimisation method, apparatus, and system are provided. The method at least includes: collecting lecture information, the lecture information includes a lecture video; performing knowledge point recognition on the lecture video to obtain knowledge point information; segmenting the lecture video according to the knowledge point information; evaluating the lecture video segmented to obtain an optimum video of each of knowledge points; and making courseware according to structural information corresponding to the optimum video of each of the knowledge points, to obtain optimized courseware.

Abstract: The present invention relates to a phase coded unsaturated modulation method and apparatus, distance and velocity measurement method using lidar and lidar system, by using phase-unsaturated modulation, a modulated laser signal includes both a single-frequency component and a phase-modulated component with the same or close energy ratio, wherein the single-frequency component can be used to obtain the velocity of relative motion between the platform and the target and to compensate for the frequency drift of a seed laser, the obtained relative Doppler frequency is used to construct a matched filter function to perform pulse compression of the phase-coded signal, and further to obtain the distance information between the target and the platform. The invention can simultaneously complete distance and velocity measurement with high accuracy, low error, small calculations and low system complexity.

Abstract: Embodiments are generally directed to a Conditional Kernel Prediction Network (CKPN) for image and video de-noising and other related image and video processing applications. Disclosed is an embodiment of a method for de-noising an image or video frame by a convolutional neural network implemented on a compute engine, the image including a plurality of pixels, the method comprising: for each of the plurality of pixels of the image, generating a convolutional kernel having a plurality of kernel weights for the pixel, the plurality of kernel weights respectively corresponding to pixels within a region surrounding the pixel; adjusting the plurality of kernel weights of the convolutional kernel for the pixel based on convolutional kernels generated respectively for the corresponding pixels within the region surrounding the pixel; and filtering the pixel with the adjusted plurality of kernel weights and pixel values of the corresponding pixels within the region surrounding the pixel to obtain a de-noised pixel.

Abstract: Some embodiments of the present application disclose an auxiliary orthodontic device for a shell-like dental appliance. The auxiliary orthodontic device including: a functional component and a retaining component provided separately from the functional component. The retaining component is connected to the functional component, at least one of the functional component and the retaining component passes through a shell-like dental appliance, the functional component is retained on the shell-like dental appliance, and the functional component is provided on an outer surface of the shell-like dental appliance. The auxiliary orthodontic device for a shell-like dental appliance provided by the present application enables a shell-like dental appliance and an auxiliary device to be assembled together easily and stably, and a corresponding auxiliary device can be selected and used based on orthodontic requirements, thereby achieving a corresponding orthodontic function.

Abstract: A method for testing medical data is provided. Each medical datum includes a plurality of information units and a plurality of separators, and the method includes the following steps: a. matching the medical data against a standard library including a plurality of patterns, a matching expression being: [\s\S][number/sequence/relation]&[\b|\B] (S101); and b. determining, based on a matching result of the step a, whether the medical datum is qualified (S102). A standardized standard library is first established, a matching result is obtained by matching the medical datum and the standard library for a non-initial boundary, an initial boundary, an information quantity, information sequences, a semantic relationship quantity, a character boundary, and a non-character boundary, and whether the medical datum meets a requirement is further determined according to the matching result.

Abstract: Photonic controlled-phase gates that include a dipole emitter chirally coupled to a plurality of photonic qubit pairs in a waveguide are disclosed herein. Each photonic qubit pair includes a two-qubit state |xy, wherein the two-qubit state |xy comprises a combination of single-qubit states |0 and |1, and may be |00, |01, |10, and |11. The dipole emitter is configured to interact with the single-qubit state |0 to impose a ? phase shift, and the dipole emitter interacts with states |00, |01, and |10 to impose the ? phase shift.

Abstract: The present disclosure provides a packaging apparatus. The packaging structure may include a main body including one or more base plates and one or more elastic sheets. Each of the base plates may have two opposite first side edges, two opposite second side edges, and an opening. Each of the one or more elastic sheets may correspond to one of the one or more base plates. The one or more elastic sheets may be physically connected with the main body, and each of the one or more elastic sheets may cover at least a part of the opening. The main body may further include a first side plate disposed beside at least one of the two opposite first side edges and a second side plate disposed beside each of the two opposite second side edges.

Abstract: A compressor includes a housing, in which a compression chamber is provided; an injection pipeline installed in the housing and configured to inject a fluid into the compression chamber; and a solenoid valve installed on the injection pipeline in the housing and configured to allow or block off the injection of the fluid through the injection pipeline.

Abstract: An alternating stack of first material layers and second material layers is formed over a substrate. A hard mask layer is formed over the alternating stack. Optionally, an additional hard mask layer can be formed over the hard mask layer. A photoresist layer is applied and patterned, and cavities are formed in the hard mask layer by performing a first anisotropic etch process that transfers a pattern of the openings in the photoresist layer through the hard mask layer. Via openings are formed through an upper portion of the alternating stack by performing a second anisotropic etch process. A cladding liner can be optionally formed on sidewalls of the cavities in the hard mask layer. The via openings can be vertically extend through all layers within the alternating stack by performing a third anisotropic etch process.

Abstract: A redistribution structure includes a first dielectric layer, a pad pattern, and a second dielectric layer. The pad pattern is disposed on the first dielectric layer and includes a pad portion and a peripheral portion. The pad portion is embedded in the first dielectric layer, wherein a lower surface of the pad portion is substantially coplanar with a lower surface of the first dielectric layer. The peripheral portion surrounds the pad portion. The second dielectric layer is disposed on the pad pattern and includes a plurality of extending portions extending through the peripheral portion.

Abstract: Disclosed is a microwave photonic Ising machine, including: a closed loop including a phase and electro-optical conversion module and a storage, correlation and photoelectric conversion module connected in turn; a laser light source configured to generate and input an optical signal to the phase and electro-optical conversion module; and a microwave pulse local oscillator source configured to generate and input a microwave pulse signal to the phase and electro-optical conversion module. The phase and electro-optical conversion module is configured to modulate the microwave pulse signal, the optical signal, and a phase-specific two-phase microwave pulse spin electrical signal input from the storage, correlation and photoelectric conversion module to obtain and input a phase-specific two-phase microwave pulse spin optical signal to the storage, correlation and photoelectric conversion module for storage and correlation.

Abstract: A method for switching clock sources is provided. In the method, Precision Time Protocol, PTP, packets are monitored using each of PTP ports which connect to a new grandmaster (401). A frequency and a phase for the PTP port are calculated based on the PTP packets (402). In response to a successful check for the frequency and the phase, the PTP port is added to a candidate list (403). A phase calibration and a phase stability check may be introduced prior to the alternate BMCA.

Abstract: A power module can include a casing mounted to a baseplate that contains a substrate with circuitry. The circuitry can include pins for coupling signals to/from the circuitry. These pins can extend through a cover portion of the casing so that an electronic substrate, such as a printed circuit board (PCB) can be press-fit onto the pins. When press-fit, the electronic substrate is supported and positioned by support pillars that extend from the base plate to above the cover portion of the casing. If the pins and the support pillars have different coefficients of thermal expansion, damage to connection points between the pins and the circuitry may occur. Here, a power module is disclosed that has thermally matched pins and support pillars so that when the system is thermally cycled over a range of temperatures, the connection points are not damaged by forces induced by thermal expansion.

Abstract: A detection apparatus configured for PCR testing includes a carrier structure and a temperature detection module. The carrier structure is configured to carry a test tube, and the test tube is configured for containing a reagent and a specimen. The temperature detection module is disposed on the carrier structure and includes a heat transfer medium and a temperature sensor. The heat capacity of the heat transfer medium is approximately equal to a preset value, so as to match heat capacity of the reagent. The temperature sensor is configured to sense a temperature of the heat transfer medium. In addition, a method for detecting a temperature of the detection apparatus is also provided.

Abstract: A fully automatic online aero aluminum sorting and recovery system based on LIBS (Laser Induced Breakdown Spectroscopy) technology, which belongs to the field of aero aluminum sorting and recovery technology, and is suitable for online sorting, detection and recovery of large batch of aero aluminum. The fully automatic online aero aluminum sorting system based on LIBS technology provided in the present invention consists of six portions: a sample feeding unit (1), a surface treatment unit (2), a material positioning unit (3), a LIBS analysis and detection unit (4), a transfer unit (5) and a sorting and recovery unit (6). The system according to the invention can be used to realize the automatic online detection, sorting and recovery of aero aluminum, and the system does not have requirements on the surface condition of the recovered aero aluminum samples. The sorting accuracy rate is greater than 90% and the sorting rate is not less than 1 block per second.

Abstract: A crystal oscillator and a phase noise reduction method thereof are provided. The crystal oscillator includes a crystal oscillator core circuit, a bias circuit coupled to an output terminal of the crystal oscillator core circuit, a pulse wave buffer coupled to the output terminal of the crystal oscillator core circuit, and a phase noise reduction circuit coupled to the output terminal of the crystal oscillator core circuit. The crystal oscillator core circuit may generate a sinusoidal wave. The bias circuit may provide a bias voltage of the sinusoidal wave. The pulse wave buffer may generate a pulse wave according to the sinusoidal wave. The phase noise reduction circuit may provide an alternating current (AC) ground path for noise on the bias voltage according to a reset pulse, wherein a position of the reset pulse is set by a control voltage on a control terminal of the phase noise reduction circuit.

Abstract: A relay coil assembly includes a bobbin having flanges on two ends, an enameled wire wound around bobbin, a coil pin mounted to the flange and having an insertion portion, an enameled wire fixing portion and a signal wire fixing portion, and a signal wire. The signal wire fixing portion is provided with a first engagement recess with an opening facing downward, in which the signal wire is engaged. An inverted hook is provided at one of two recess sidewalls of the first engagement recess, and a slope section is provided at one of the two recess sidewalls of the first engagement recess. The opening gradually enlarges from inside to outside along the slope section, which is capable of squeezing the signal wire into the first engagement recess and the inverted hook is capable of preventing the signal wire from coming out.

Abstract: A transformer device includes a first and a second trace, a first and a second connection member, and a first input/output member. A second sub-trace of the first trace is coupled to a first sub-trace of the first trace at a first and a second area. The first connection member is coupled to the first and the second sub-trace. The first and a third sub-trace of the second trace are disposed in turn. A fourth sub-trace of the second trace is coupled to the third sub-trace at the first and the second area. The second and the fourth sub-trace are disposed in turn. The second connection member is coupled to the third and the fourth sub-trace. The first sub-trace includes first wires, and the first input/output member is coupled to the first wire which is located at an inner side among the first wires.

Abstract: A processing element architecture adapted to a convolution comprises a plurality of processing elements and a delayed queue circuit. The plurality of processing elements includes a first processing element and a second processing element, wherein the first processing element and the second processing element perform the convolution according to a shared datum at least. The delayed queue circuit connects to the first processing element and connects to the second processing element. The delayed queue circuit receives the shared datum sent by the first processing element, and sends the shared datum to the second processing element after receiving the shared datum and waiting for a time interval.