Abstract: Disclosed is a three dimensional mechanical ultrasound probe, which includes a transducer, a driving motor and a transmission mechanism configured to drive the transducer to reciprocatingly oscillate within a predetermined angle. The transmission mechanism includes a transducer base fixed and connected with the transducer, a face gear arranged on the transducer base, and a cylindrical gear meshed with the face gear. A rotating shaft of the face gear is positioned on the transducer base, and the face gear drives the transducer base to reciprocatingly oscillate. A transmission shaft is arranged on the axis of the cylindrical gear, and the transmission shaft is connected with the driving motor. The three dimensional mechanical ultrasound probe provided by the present application aims at simplifying the internal structure of the three dimensional mechanical ultrasound probe, reducing the internal installation complexity and improving motion stability.

Abstract: A stable water based nanofluid of graphene-based amphiphilic Janus nanosheets, where the nanofluid has a high salt-content while retaining the interfacial activities of the nanosheets. Such a nanofluid of amphiphilic Janus nanosheets may be used for enhanced oil recovery.

Abstract: Provided are a networking method, communication method, and communication system for a multi-mode communication device, a device, and a chip. The networking method includes: sending response information about available communication modes between a network access node and a to-be-connected node to the network access node, where the available communication modes are divided into a plurality of sets, and modes in each of the sets are incompatible with each other, and modes in different sets are compatible with each other; and locking an optimal mode, selected from each of the sets based on the response information, as handshake information between the two nodes when a preset negotiation result is met, such that the network access node reports corresponding routing information, and a root node updates networking routing information.

Abstract: A central node of the system is connected to a working node through a network device. The central node generates a plurality of tasks based on a query request input by a user. When allocating execution devices to the plurality of tasks, the central node configures execution devices of some tasks as the network device, configures execution devices of some tasks as the working node, and then sends configuration instructions to the configured network device and working node, to set, on the network device and the working node, tasks configured for the network device and working node. After configuration is completed, the network device executes the set tasks on the data that passes through the network device.

Abstract: Disclosed are a beacon timeslot allocation method, apparatus, and device. The method includes: determining, based on a type of a beacon frame sent by a node in a system on a highspeed radio frequency (HRF) link, a node sending a standard beacon frame as a first-type node, and a node sending a simplified beacon frame as a second-type node; and in a process of sending a beacon frame on the HRF link by one first-type node, scheduling at least one first-type node and/or second-type node that have/has not been scheduled to perform sending on a highspeed power line carrier (HPLC) link yet to send a beacon frame on the HPLC link, where the scheduled first-type node and/or second-type node do/does not include the one first-type node or a node on a path between the one first-type node and a central coordinator (CCO) in the system.

Abstract: Example data query methods, apparatuses, and computer-readable medium are provided. After receiving a data query request, a data processing system queries target data required by a user from second files with a smaller data amount instead of a first file with a larger data amount. The second files are specifically generated based on the first file. Both the first file and the second file may be files formed by aggregated data or files formed by original data that is not aggregated. Alternatively, the first file is a file formed by original data, and the second file is a file formed by aggregated data. When data is queried, the second file with the smaller data amount is traversed.

Abstract: The present disclosure provides a quantitative accuracy evaluation method and system for a result of remote sensing inversion. The method includes the following steps: acquiring measured data of a target element content in a preset zone; acquiring, based on acquired remote sensing image reflectivity of the preset zone, predicted data of the target element content in the preset zone by a remote sensing inversion model; and conducting comprehensive index evaluation of abnormal feature similarity between the measured data and the predicted data. The technical solution adopted in the present disclosure can solve the problem with quantitative accuracy evaluation of remote sensing inversion that inverted object content and measured object content are distributed inconsistently in space.

Abstract: Provided is a chemical solution supply device for which an installation location can be easily ensured, and which can stably supply a chemical solution. The chemical solution supply device includes: a container having an inner space in which a chemical solution to be supplied to a toilet bowl is accommodated; and a flexible tube that is in communication with the inner space and defines a passage for guiding the chemical solution to the inside of the toilet bowl, or to the inside of a water tank for supplying washing water to the inside of the toilet bowl.

Abstract: Embodiments include monoclonal antibodies (mAbs) that recognize SARS-Cov-2 spike protein. The mAbs are capable of distinguishing among variants of the virus. The present disclosure also provides a composition and methods of making and using such a composition for treating, preventing, and/or detecting SARS-CoV-2 infection.

Abstract: In a solution for accessing a storage system, a client sends, based on an obtained start address that is of a queue of an NVMe storage device and to which an access request points and an obtained logical address that is of the NVMe storage device and to which the access request points, a remote direct memory access command to a storage node in which the NVMe storage device is located.

Abstract: The present disclosure provides antibodies that bind to the SARS-CoV-2 spike protein, as well as compositions containing the same, and methods of making and using such a composition for treating, preventing, and/or detecting SARS-CoV-2 infection.

Abstract: A light detecting device includes first pixel circuitry including a first avalanche photodiode, and second pixel circuitry including a second avalanche photodiode, a first delay circuit including an input coupled to a cathode of the second avalanche photodiode, a first circuit including a first input coupled to the cathode of the second avalanche photodiode, and a second input coupled to an output of the first delay circuit. The light detecting device includes a control circuit coupled to an output of the first circuit and configured to control a potential of an anode of the first avalanche photodiode based on the output of the first circuit. The control circuit is configured to control a potential of an anode of the second avalanche photodiode based on the output of the first circuit.

Abstract: The present invention states a method of producing new cathode materials for lithium ion batteries by recycling metals from depleted lithium-ion batteries using green reagents, and a method of deriving green reagents from agricultural products. The green reagents are used to replace corrosive acids that are used in the recycling process of depleted lithium-ion batteries. Metal ions, such as nickel, cobalt, manganese, and lithium are recovered as precipitates from the depleted lithium-ion batteries which can further be sintered to produce lithium-containing transition metal oxides that can be used as new cathode material for lithium-ion batteries.

Abstract: In a limiting circuit that limits an output voltage of an operational amplifier, the signal quality of the output voltage is improved. The limiting circuit includes a short-circuit transistor and a gate voltage supply unit. In the limiting circuit, the short-circuit transistor short-circuits a path between an input terminal and an output terminal of the operational amplifier in a case where a voltage between the input terminal of the operational amplifier and the gate is higher than a predetermined threshold voltage. Furthermore, in the limiting circuit, the gate voltage supply unit supplies a voltage to the gate, the voltage depending on the threshold voltage and the output voltage of the output terminal.

Abstract: In a solution for accessing a storage system, a client sends, based on an obtained start address that is of a queue of an NVMe storage device and to which an access request points and an obtained logical address that is of the NVMe storage device and to which the access request points, a remote direct memory access command to a storage node in which the NVMe storage device is located.

Abstract: This disclosure relates to generation of dynamic materials having an ordered structure and artificial metabolism. The approach disclosed herein allows autonomous and dynamic generation of materials with structural hierarchy by simultaneously coupling both irreversible synthesis (and optionally decomposition) and dissipative assembly processes, but in an artificial fashion. As an exemplary embodiment, DNA-based Assembly and Synthesis of Hierarchical (or “DASH”) materials have been generated. Systems, devices, reagents and methods for generating the materials, as well as additional applications of the present methodology, are disclosed.

Abstract: A facile and scalable method to prepare graphene-based amphiphilic Janus nanosheets with high efficiency utilizing the formation of hydrogen bonding to immobilize graphene oxide (GO) on the surfaces of starch microspheres. After selective functionalization of the exposed surface using alkylamine, amphiphilic Janus nanosheets (AJN) were obtained by releasing the nanosheets from the starch microspheres.

Abstract: In a method for managing a storage device in a storage system, a client may send, based on an obtained start address that is of a queue of an NVMe storage device and to which an access request points and an obtained logical address that is of the NVMe storage device and to which the access request points, a remote direct memory access command to a storage node in which the NVMe storage device is located.