Abstract: The present disclosure provides a full-duplex digital self-interference clear method, including: before a signal is transmitted with a peer device in a full-duplex mode, performing a calculation by a self-adaptive algorithm to obtain a pre-distortion processing coefficient; under the condition that the signal is transmitted with the peer device in the full-duplex mode, performing pre-distortion processing on a first signal sent by the transmit link to the peer device according to the pre-distortion processing coefficient to obtain a second reconstructed interference signal; and performing self-interference clear according to the second reconstructed interference signal and a second interference signal of the receive link, with the second interference signal being a signal obtained through superimposition of an interference signal generated by the first signal in the receive link and a second signal received by the receive link from the peer device.

Abstract: The present disclosure provides a linearity calibration method for digital time converter, including: acquiring a phase prediction parameter and a locked phase error, and calculating a control word of a digital time converter according to the phase prediction parameter, the locked phase error, a pre-configured nonlinear predistortion function, and a pre-configured calibration order n, with the control word being configured to enable the digital time converter to adjust a delay of a reference clock, so as to keep the reference clock and a feedback clock which are input to a time digital converter in a tracked state. The present disclosure further provides a linearity calibration apparatus for digital time converter and a digital phase lock loop.

Abstract: The present application provides a clock switching method, a clock switching apparatus, an electronic device, and a readable storage medium, the clock switching method includes: in a case where a first reference clock is determined to be in a locked state, determining an average control word according to a preset duration and an obtained real frequency tuning word; in a case where the first reference clock is determined to be in an invalid state, determining a compensation phase difference by using the average control word as a frequency control word of a digital phase locked loop; performing a phase compensation on a second reference clock according to the compensation phase difference to obtain an updated second reference clock; and switching the first reference clock to the updated second reference clock.

Abstract: Machine-learning (ML) techniques and models are described for predicting the number and severity of network attacks within a specified timeframe, such as the next fifteen minutes. In some embodiments, the techniques including training a ML model based on features extracted from a training dataset and applying the trained ML model to estimate (a) the probability of an attack happening on an account within a specified timeframe; (b) how many attacks are predicted to occur in the specified timeframe (if any); and/or (c) the severity of the attacks predicted to occur. A system may deploy preventative measures based on the ML model output to counter or mitigate the effects of predicted and coordinated network attacks.

Abstract: Machine-learning techniques and models are described for alerting users to attacks on accounts in real-time or near real-time. In some embodiments, an attack detection model uses Natural Language Processing (NLP) and multi-level classification techniques to monitor login attempts and detect attacks. The model may use NLP to convert text associated with account activity to numerical vectors, where the vectors include scores and/or other numerical values computed based on the meaning of the converted text. The model may further include a set of classifiers trained to learn patterns in the numerical vectors that are predictive of a network attack. The model may assign labels to events based on the predicted likelihood that the event is an attack. The system may deploy real-time preventative or corrective measures based on the ML model output to counter or mitigate the effects of an attack.

Abstract: This application discloses a container. The container comprises a base, two pairs of opposite side plates and a lid. The two pairs of opposite side plates are both connected to the base. The lid can be locked to the top of the side plate via a locking device. Each of the four top corners of the container is provided with one locking device. The four locking device are arranged opposite to each other tin pairs along the corresponding diagonal of the lid, and each of the locking device includes one locking tongue member provided on the lid and one locking groove provided on the corresponding side plate. The locking tongue member has a locking tongue and is arranged to be movable relative to the lid so that the locking tongue is insertable into the locking groove to lock the lid to the side plate and is detachable from the locking groove to unlock the lid. Each of the locking grooves extends outwardly from the side plate along the corresponding diagonal direction of the lid.

Abstract: The present disclosure provides a method of preparing a silver alloy composite nanomaterial. The preparation method comprises forming a silver alloy comprising at least one of copper, zinc, magnesium, aluminum and titanium into a composite metal rod; evaporating the silver alloy of the composite metal rod, resulting in a gaseous alloy; rapidly cooling the gaseous alloy so as to condense the silver alloy into a solid state; and collecting the cooled powder so as to obtain the silver alloy composite nanomaterial.

Abstract: This application discloses a container. The container comprises a base, two pairs of opposite side plates and a lid. The two pairs of opposite side plates are both connected to the base. The lid can be locked to the top of the side plate via a locking device. Each of the four top corners of the container is provided with one locking device. The four locking device are arranged opposite to each other tin pairs along the corresponding diagonal of the lid, and each of the locking device includes one locking tongue member provided on the lid and one locking groove provided on the corresponding side plate. The locking tongue member has a locking tongue and is arranged to be movable relative to the lid so that the locking tongue is insertable into the locking groove to lock the lid to the side plate and is detachable from the locking groove to unlock the lid. Each of the locking grooves extends outwardly from the side plate along the corresponding diagonal direction of the lid.

Abstract: A time information coding method is provided, to solve the problem of coded values low calculation efficiency, which is resulted by adopting the existing time information coding schemes. The method comprises: determining time information to be coded; coding the time information to be coded to a first integer with a specified number of bits under a first time scale; coding the first integer into a second integer with a specified number of bits under a second time scale, the second integer being as a coded value under the second time scale of the time information to be coded. A time information coding device, a searching method for coded values, a decoding method and device are also provided.

Abstract: The present disclosure provides a method of preparing a silver alloy composite nanomaterial. The preparation method comprises forming a silver alloy comprising at least one of copper, zinc, magnesium, aluminum and titanium into a composite metal rod; evaporating the silver alloy of the composite metal rod, resulting in a gaseous alloy; rapidly cooling the gaseous alloy so as to condense the silver alloy into a solid state; and collecting the cooled powder so as to obtain the silver alloy composite nanomaterial.

Abstract: The invention discloses a method for rapidly quantitative and qualitative analyzing active ingredients of mushrooms. The method for analyzing mushrooms uses a 3-D fluorescence-detecting system to analyze a sample of mushrooms, with an excitation wavelength and an emission wavelength being 250 nm and 310 nm, respectively.

Abstract: A package-integrated EMI compartment shielding structure includes an encapsulating member disposed on a mounting surface of a substrate. The substrate has a ground pad exposedly arranged thereon. The encapsulating member, who defines a peripheral surface, covers the ground pad and encapsulates at least one electronic element. A compartment structure is disposed in the encapsulating member, electrically connecting the ground pad and substantially dividing the encapsulating member into at least two package compartments. The terminal portions of the compartment structure are arranged within the encapsulating member proximal to yet without compromising the peripheral surface. A notch is disposed into the encapsulating member from the peripheral surface corresponding to the location of the terminal portions of the compartment structure to expose the lateral surface thereof across the thickness of the encapsulating member.

Abstract: The invention discloses a method for rapidly quantitative and qualitative analyzing active ingredients of mushrooms. The method for analyzing mushrooms uses a 3-D fluorescence-detecting system to analyze a sample of mushrooms, with an excitation wavelength and an emission wavelength being 250 nm and 310 nm, respectively.

Abstract: A package-integrated EMI compartment shielding structure includes an encapsulating member disposed on a mounting surface of a substrate. The substrate has a ground pad exposedly arranged thereon. The encapsulating member, who defines a peripheral surface, covers the ground pad and encapsulates at least one electronic element. A compartment structure is disposed in the encapsulating member, electrically connecting the ground pad and substantially dividing the encapsulating member into at least two package compartments. The terminal portions of the compartment structure are arranged within the encapsulating member proximal to yet without compromising the peripheral surface. A notch is disposed into the encapsulating member from the peripheral surface corresponding to the location of the terminal portions of the compartment structure to expose the lateral surface thereof across the thickness of the encapsulating member.

Abstract: A method for manufacturing a zipper without shift in injection molding comprises the steps of forming a bank of continuous zipper teeth at an edge of each of two parallel zipper strips by molding injection; wherein an inner side of each zipper strip has a respective connecting strip; scraping a part of zipper teeth on the zipper strip; melting two layers of films and coating the films on the upper and lower sides of the zipper strip; punching holes at inner lateral sides of the films, but the connecting strips are remained; guiding two zipper strips into an upper and a lower engaging piece molds; and tensioning the zipper strips within the molds; injection-molding engaging pieces; moving the molds from the zipper strips; cutting the zipper strips along the holes, thus forming the upper and lower engaging pieces of a zipper.

Abstract: A method for manufacturing a zipper without shift in injection molding comprises the steps of forming a bank of continuous zipper teeth at an edge a zipper strip; scraping a part of zipper teeth on the zipper strip; melting two layers of films and coating the films on the upper and lower sides of the zipper strip; punching holes at an inner lateral sides of the films; guiding two zipper strips into an upper and a lower engaging piece molds; and expanding the zipper strips; injection-molding engaging pieces; moving the molds from the zipper strips; cutting the zipper strips along the holes, thus forming the upper and lower engaging pieces of a zipper. When forming the hole, a connecting strip at an edge having the films must be retained. Thereby, the zipper strips can be precisely positioned in the upper engaging piece mold and the lower engaging piece mold.

Abstract: A locking device for a rotatable chair or table includes a middle vertical tube, an annular closing member fixed on an upper end of the middle vertical tube, a protective outer tube fitting around the middle vertical tube, having an inner wall provided with the same shape of as the annular closing member and having a plurality of screw holes formed in an upper end portion, and screws screwing in the screw holes of the protective outer tube. The screws can be screwed inward tightly against an outer surface of a piston rod extending out of the air pressure bar contained in the middle vertical rod. When the piston rod is locked immovable by the screws, the chair or table is also locked immovable, being fixed tightly with an upper end of the piston rod.

Abstract: An adjustable armrest assembly has a fixed seat, a control seat disposed on the fixed seat, a pad seat disposed on the control seat, a main body disposed on the pad seat, and a cover plate covering the main body. The fixed seat has two through apertures. The control seat has two stepped holes, two threaded apertures, and two upper grooves. The main body has a lower recess receiving the pad seat and the control seat, an upper recess receiving an elastic plate, and a separation plate. Two slide seats are inserted in the stepped holes. Two hollow cylinders are inserted in the upper grooves.