Abstract: This invention discloses a pneumatic and cable-driven hybrid artificial muscle, comprising pneumatic actuator, pneumatic pressure regulating assembly, and cable drive assembly. The pneumatic pressure regulating assembly is connected to the pneumatic actuator to regulate air pressure in the pneumatic actuator for controlling the pneumatic actuator to extend or contract. The cable actuation assembly comprises a cable fixedly connected to the pneumatic actuator for controlling the pneumatic actuator to contract. In this invention, the artificial muscle employs a dual pneumatic and cable actuation mechanism. By leveraging the inherent stiffness of the pneumatic actuator, it can provide substantial actuation force for joint movement. Simultaneously, the cable actuation assembly can provide significant pulling force, effectively ensuring safety in human-machine interaction and offering sufficient bidirectional aiding force to individuals with disabilities who use the artificial muscle as an aiding actuation device.

Abstract: A medium heavy alloy (MHA) and a fabrication method thereof are disclosed. The MHA includes a composition designed and processed such that the MHA has properties comprising a tensile strength of about 1527 MPa, a proof strength of about 1337 MPa, and an impact toughness of about 180 J, when the MHA is forged, and the tensile strength of about 1746 MPa, the proof strength of about 1571 MPa, and the impact toughness of about 55 J, when the MHA is agedly treated. The method includes providing a composition designed according to design specifications of the MHA; forming a cast alloy from the composition by a metallurgy process; and forged the cast alloy at a first temperature to form the MHA having properties that are the design specifications.

Abstract: A method and apparatus for aiming at a virtual object in a virtual environment, which: displays a user interface (UI), the UI including a picture of a virtual environment including a first virtual object and at least one second virtual object located in the virtual environment; displays a dot aiming indicator in the virtual environment in response to an aiming instruction, the dot aiming indicator being used for indicating an aiming point selected by an aiming operation on a ground plane of the virtual environment; and controls the first virtual object to aim at a target virtual object, which is a virtual object selected from a second virtual object in a target selection range which is a selection range determined by using the aiming point as a benchmark.

Abstract: Provided are a vibration object monitoring method and apparatus, a computer device, and a storage medium. The method includes: in response to detecting that a vibration object exists in a monitoring video picture for a target monitoring region, a vibration object region in the monitoring video picture is determined, where the vibration object region is a region where the vibration object is located in the monitoring video picture; displacement information of a key point of the vibration object in the vibration object region is recorded; vibration information of the vibration object in the monitoring video picture is determined based on the displacement information; and a vibration object monitoring result for the target monitoring region is generated according to the vibration information. The abnormal vibration monitoring can be performed on the vibration object in the target monitoring region in time according to this method.

Abstract: The invention proposes a nursing bra, which comprises a bra body, wherein the bra body comprises two cups and shoulder straps, and the two cups are composed of inner and outer layers; the outer layer is provided with oblique outer opening seams, and the inner layer is provided with oblique inner opening seams, the two sides of the outer opening seam are provided with zipper strips to cooperate with the zipper to open and close the outer opening seam; the top of the shoulder strap is provided with an eye, the connection between the shoulder strap and the cup is provided with a hook, the hook is adaptively connected with the eye, and one side of the shoulder strap extends to the bottom of the cup.

Abstract: The present invention relates to the technical field of mine fire prevention and extinguishing, in particular to a liquid nitrogen direct injection and low-temperature foaming intelligent filling system based on mine fire area characteristics and an application method, comprising a liquid nitrogen storage tank, a liquid nitrogen direct injection system and a low-temperature foaming system, wherein the liquid nitrogen storage tank communicates with a liquid nitrogen pressurizing device through a main pipeline; a temperature control unit is arranged on the main pipeline; and the liquid nitrogen pressurizing device is connected with the liquid nitrogen direct injection system and the low-temperature foaming system, respectively, liquid nitrogen is directly injected into a foam liquid, to prepare a low-temperature foam type fire preventing and extinguishing material by means of forced convection, membrane boiling, explosion boiling and nucleate boiling between the liquid nitrogen and water.

Abstract: A method for determining tobacco-specific nitrosamines (TSNAs) in cigarette smoke using one-step clean-up coupled with LC-MS/MS is provided, including the following steps: collecting a particulate matter of mainstream cigarette smoke with a Cambridge filter pad, mixing the particulate matter of mainstream cigarette smoke, an internal standards solution and water in a 50 mL plastic centrifuge tube, and vortexing the resulting mixture at room temperature to allow extraction; transferring an extraction solution after filtration to a new centrifuge tube, adding dichloromethane, and vortexing the resulting mixture; centrifuging to collect a dichloromethane extraction solution in a lower layer to another centrifuge tube, and placing the centrifuge tube in a water bath to remove dichloromethane; dissolving the resulting extraction solution in water, and transferring the resulting solution to an autosampler vial for LC-MS/MS analysis.

Abstract: This application discloses a method for updating a virtual environment picture performed by a computer device. The method includes: displaying a first virtual environment picture of a virtual environment using a first observation position as an observation center, wherein a virtual character is located at a first position in the first virtual environment picture; in response to receiving a first directional operation on the virtual character, displaying a skill indicator in accordance with the first directional operation; and when at least a portion of the skill indicator is going to exceed the first virtual environment picture, replacing the first virtual environment picture with displaying a second virtual environment picture, wherein the virtual character is relocated from the first position in the first virtual environment picture to a second position in the second virtual environment picture so as to present the skill indicator in the second virtual environment picture.

Abstract: Testing devices for testing target test devices each composed of one or more battery cells, such as battery cells and battery packs. In some embodiments, a testing device may be considered self-contained in that it may include sufficient onboard systems and features to allow the testing device to conduct testing on one or more target test devices with minimal inputs, such as electrical power, higher-level instructions, and/or control inputs. In some embodiments, a testing device may include an explosion- and/or fire-proof or -resistant enclosure. In some embodiments, components of a testing device may be modularized for easy reconfiguring for different testing and/or different target test devices. In some embodiments, a plurality of testing devices can be controlled by a central testing controller. Related methods and systems are also disclosed.

Abstract: Compounds having formula (I), and enantiomers, and diastereomers, stereoisomers, pharmaceutically-acceptable salts thereof, are useful as kinase modulators, including RIPK1 modulation. All the variables are as defined herein.

Abstract: A slider may include a first side-edge surface, a second side-edge surface, and an air-bearing surface (ABS) comprising: a first side cavity adjacent to the first side-edge surface, and a first island side blocker situated at a mouth of the first side cavity, wherein: a first outer surface of the first island side blocker forms a portion of the first side-edge surface, a second outer surface of the first island side blocker is recessed from the first side-edge surface, a first side opening is situated on a leading side of the first island side blocker, and a second side opening is situated on a trailing side of the first island side blocker.

Abstract: Provided is a SARS-CoV-2 mRNA vaccine, and the preparation method and use thereof. The present invention provides an mRNA molecule capable of encoding a target polypeptide, wherein the target polypeptide comprises an NTD-RBD natural domain in the Spike (S) protein of SARS-CoV-2, and wherein the NTD-RBD natural domain comprises an NTD fragment and an RBD fragment, the NTD fragment and the RBD fragment being linked together via a natural amino acid sequence derived from the S protein as a linker. The present invention provides an mRNA encoding a NTD-RBD natural domain in the Spike protein of SARS-CoV-2, which achieves an immune effect against SARS-CoV-2 mutant strains and is widely applicable.

Abstract: An interface circuit and an electronic apparatus, including: a programmable current array (1), generating a first current and a second current transmitted to a common mode and differential mode generation circuit (2) according to an input code, and a third current and a fourth current transmitted to a driving bias generation circuit (3) according to the input code; the common mode and differential mode generation circuit (2), generating a common mode voltage according to the first current, and generating a high level voltage and a low level voltage according to the second current and the common mode voltage; a driving bias generation circuit (3), simulating a load according to the third and fourth currents, and generating a bias voltage based on the load and the low and high level voltages; an output driving circuit (4), converting an input signal into a differential signal in which the common mode voltage and a differential mode amplitude are configurable.

Abstract: The present invention relates to monobactam compounds of Formula I: and pharmaceutically acceptable salts thereof. The present invention also relates to compositions which comprise a monobactam compound of structural formula I or a pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable carrier. The invention further relates to methods for treating a bacterial infection comprising administering to the patient a therapeutically effective amount of a compound of structural formula I, either alone or in combination with a therapeutically effective amount of a second beta-lactam antibiotic.

Abstract: Systems, methods, and processor-readable media for elastic allocation of resources for deep learning jobs are described. A machine-learning-as-a-service (MLaaS) of a cloud computing system includes an elastic training module which includes resource allocator for allocating resources to training jobs that optimizes overall estimated time to completion (ETC) for all training jobs received by the system and uses node-based resource allocation. The elastic training module may realize a combination of high resource utilization, short training times, and low queueing delay relative to existing approaches, thereby potentially enabling the realization of higher profits for a cloud computing system which provides MLaaS to users (i.e. customers). An improved user interface is described, enabling users to specify a range of resources to elastically allocate to the user's training job, and/or informing users of training time saved through the use of elastic resource allocation.

Abstract: A method for determining tobacco-specific nitrosamines (TSNAs) in tobacco using one-step clean-up coupled with liquid chromatography-tandem mass spectrometry (LC-MS/MS) is provided, including the following steps: destemming flue-cured tobacco or sun-cured tobacco, drying, milling, and passing through a sieve; mixing the resulting tobacco, an internal standards solution and water in a plastic centrifuge tube, and vortexing the resulting mixture at room temperature to allow extraction; transferring an extraction solution after filtration to a new centrifuge tube, adding dichloromethane, and vortexing the resulting mixture; centrifuging to collect a dichloromethane extraction solution in a lower layer to another centrifuge tube, and placing the centrifuge tube in a water bath to remove dichloromethane; dissolving the resulting extraction solution in water, and transferring the resulting solution to an autosampler vial for LC-MS/MS analysis.

Abstract: A display substrate has a display region and a peripheral region. The display substrate includes a substrate, a first dam, a second dam and a connection portion. The first dam and the second dam are located on a side of the substrate, and are located in the peripheral region. The second dam is farther from the display region than the first dam. A height of the second dam is greater than a height of the first dam. The connection portion is located between the first dam and the second dam. The connection portion connects the first dam and the second dam, and a height of the connection portion is less than the height of the first dam. At least a portion of the first dam, at least a portion of the connection portion and at least a portion of the second dam are of an integrative structure.

Abstract: Provided is a SARS-CoV-2 mRNA vaccine, and the preparation method and use thereof. The present invention provides an mRNA molecule capable of encoding a target polypeptide, wherein the target polypeptide comprises an NTD-RBD natural domain in the Spike (S) protein of SARS-CoV-2, and wherein the NTD-RBD natural domain comprises an NTD fragment and an RBD fragment, the NTD fragment and the RBD fragment being linked together via a natural amino acid sequence derived from the S protein as a linker. The present invention provides an mRNA encoding a NTD-RBD natural domain in the Spike protein of SARS-CoV-2, which achieves an immune effect against SARS-CoV-2 mutant strains and is widely applicable.

Abstract: This application discloses a method for operating virtual characters within a virtual environment performed by a computer device.