Abstract: In a mass spectrometry method, a deuterium-resolved mass spectrum of a gas sample comprising volatile metabolites that have been excreted from a human or animal subject (50) after ingestion of deuterated water is determined. The deuterium-resolved mass spectrum to determine a presence or amount of at least one deuterated metabolite. Also disclosed is a corresponding mass spectrometry system.

Abstract: A lighting fixture sealing ring base device is provided, relating to the technical field of lighting fixtures. The lighting fixture sealing ring base device includes a supporting assembly and a sealing assembly; the supporting assembly includes a base body, a sealing ring plate, and a bearing seat; the bearing seat is arranged in an upper center of the base body; the sealing ring plate is arranged on a circumferential side of the bearing seat; the sealing assembly includes a sealing ring body and fins; and the sealing ring body abuts against the sealing ring plate.

Abstract: A heat dissipation system and a medical system are provided. The heat dissipation system includes a circulation pipeline and a cooling device. The circulation pipeline is configured for conveying a cooling medium to a medical system. The medical system includes at least two electric units, and the at least two electric units have different rated cooling temperatures. The cooling device is in communication with the circulation pipeline and is configured for adjusting a temperature of the cooling medium, so as to dissipate heat of the at least two electric units.

Abstract: The present invention relates to a cloud software service resource allocation method based on QoS model self-correction, the method comprising: step S1: performing online self-learning to obtain a QoS prediction model; step S2: collecting runtime data under a certain workload, and improving the accuracy of the QoS prediction model under a current workload through self-correction control; step S3: constructing a fitness function in combination with the quality of service (QoS) and the cloud resource cost (Cost), and searching for a target resource allocation scheme by using an improved particle swarm optimization algorithm; step S4: comparing the current resource allocation situation with the searched target resource allocation scheme to obtain a difference therebetween, and then adjusting resources according to a certain proportion; and step S5: repeating steps S2 to S4 until the current resource allocation situation is the same as the target resource allocation scheme which means that resource adjustment is

Abstract: A projection apparatus, a display method of a projection apparatus, and a storage medium are provided. The projection apparatus includes a light valve, a first controller, and a second controller. The light valve is configured to modulate incident beams. The first controller is configured to receive and output image data. The output image data includes at least one of first data or second data. The second controller is configured to receive and process the image data. The first controller is further configured to perform color gamut conversion on the first data and not perform color gamut conversion on the second data. The second controller is further configured to perform color gamut conversion on the second data, so as to make a color gamut of a second image be same as a color gamut of a first image.

Abstract: A method for rapidly calculating intersection over union (IOU) between a target region and a designated region in an image is used in an electronic device. The electronic device detects a target object from an image received from a monitored location, and determines a designated region, a target region, and a combined region from the image, the target region including the target object. The electronic device calculates a first area of the designated region, a second area of the target region, and a third area of the combined region, and calculates a value of IOU according to formula of SIOU=(S1+S2?S3)/S2. S1 represents the first area, S2 represents the second area, and S3 represents the third area. The electronic device issues an intrusion warning in or concerning a monitored region according to a comparison result between the value of IOU and a preset threshold.

Abstract: A computer-implemented method executed by one or more processors includes receiving interconnection data for a proposed interconnection to a power grid; accessing a power grid model including a topological representation of the power grid, electrical specifications of grid components, and empirical operation characteristics; and generating, using the interconnection data for the proposed interconnection to the power grid, and the power grid model, simulated power grid data. The simulated power grid data is based on simulating operation of the power grid with the proposed interconnection coupled to a location of the power grid identified by the interconnection data during a simulated time period. The simulated power grid data includes a plurality of different temporal and spatially dependent characteristics of the power grid. The method includes evaluating, using one or more metrics, the simulated power grid data; and outputting evaluation results of the one or more metrics.

Abstract: Photodetector and forming method thereof are provided. The photodetector includes a substrate including a plurality of photosensitive areas and isolation areas between adjacent photosensitive area; a diode structure in a photosensitive area of the plurality of photosensitive areas; a deep trench isolation structure in an isolation area of the isolation areas; a protruding portion at least on a top surface of the deep trench isolation structure, a surface of the protruding portion protruding relative to a surface of the substrate, and a center of the protruding portion being higher than edges of the protruding portion; and a passivation layer on surfaces of protruding portions, a refractive index of the passivation layer material being greater than a refractive index of a material of the protruding portions.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a transmitter network node may generate a grouping descriptor, for a transport block, that indicates grouping information for a plurality of protocol data units (PDUs) in the transport block. The transmitter network node may transmit the grouping descriptor with the transport block. Numerous other aspects are described.

Abstract: Provided are a battery heating control method and apparatus, an electric vehicle, and a storage medium. The method includes: detecting whether the state of a battery meets a preset state condition when a first signal is detected; and performing heating control on the battery according to the situation in which the state of the battery meets the preset state condition. The pre-detection logic of a battery heating function is triggered by detecting the first signal. Since the first signal includes an interaction signal between a person and a vehicle, the pre-detection logic of the state of the battery is prior to the in-place condition of a driver. As a result, after it is determined that the state of the battery meets the condition, the battery heating function can be quickly started at any time.

Abstract: A neuroprosthetic system for substituting a sensory modality of a mammal by electrical stimulation of a region of the cerebral cortex corresponding to the neural modality to be substituted. The system includes at least one sensor for generating a sensed data feed by sensing a neural modality to be substituted, an electrode unit including a plurality of three-dimensional arrays of flexible electrode shafts for implantation of a region of the cerebral cortex, a rigid electrode support structure for guiding the flexible electrode shafts into the region of the cerebral cortex and for retraction after implantation, a driving unit for electrically driving the electrode, a recording unit, and a processing unit for analysing sensed data feed for providing stimulation patterns for electrically driving groups of electrical contacts of the electrode unit corresponding to subsets of locations in the region of the cerebral cortex, for substituting the sensory modality.

Abstract: A method for rapidly calculating intersection over union (IOU) between a target region and a designated region in an image is used in an electronic device. The electronic device detects a target object from an image received from a monitored location, and determines a designated region, a target region, and a combined region from the image, the target region including the target object. The electronic device calculates a first area of the designated region, a second area of the target region, and a third area of the combined region, and calculates a value of IOU according to formula of SIOU=(S1+S2?S3)/S2. S1 represents the first area, S2 represents the second area, and S3 represents the third area. The electronic device issues an intrusion warning in or concerning a monitored region according to a comparison result between the value of IOU and a preset threshold.

Abstract: The present application relates to the technical field of motors, and specifically relates to a stator and a motor with the same. The present application is intended to solve a technical problem that a motor stator on the market has a complex fixing structure of a neutral wire. To this end, the present application provides a stator, comprising: a stator yoke portion provided with a plurality of windings; an insulating base arranged on a periphery of the plurality of windings; and a neutral wire arranged on the insulating base and connected to the plurality of windings.

Abstract: The present disclosure is related to a multi-stage control negative Poisson self-expanding anchor apparatus. The apparatus is constructed to solve the problem of poor effect or even failure of anchor bolts owing to insufficient force area of the bolt and easy damage of the locking section under the action of large tension in the existing technology. The anchorage section mainly comprises a plurality of circular platform bodies spaced with larger outward and smaller inward along the axial direction. The axial inner segment of the round platform body is coaxial connected with the force resistant body, and the axial outer segment of the round platform body is opened with an axial inward through the hole of the force resistant body. The axial inner part of the force resistant body is fixed on the anchorage segment.

Abstract: Systems and computer-implemented methods for tracking movement of a subject comprise and perform the steps of: Obtaining depth image data of a subject's body during a predefined time period and tracking locations of a plurality of anatomical landmarks of the body based on the depth image data. In addition, a location of a predefined point is tracked in an environment, in which the subject is moving. The location of the one or more of the plurality of anatomical landmarks is adjusted relative to the location of the predefined point to obtain adjusted locations. A movement of the subject's body is determined based on the adjusted locations during the predefined time period.

Abstract: An application migration method from client-server architecture to blockchain architecture is provided. The application migration method includes the following steps: S1: modeling an application program of a conventional client-server architecture and abstracting the application program to a program call tree; S2: defining a taint propagation rule for taint analysis by taking key data as tainted data, to acquire all taint variables in the application program; and S3: identifying a key module of the application program on the program call tree according to a tainted path, and setting a code refactoring rule to perform code refactoring on a method in the key module according to a special program structure.

Abstract: Techniques for expanding a storage device cluster involve acquiring identity information of a first storage device to be added to the storage device cluster and expansion configuration information. Such techniques further involve acquiring corresponding identity information of a plurality of storage devices in a network in which the storage device cluster is located. Such techniques further involve adding, in response to one piece of identity information in the corresponding identity information being the same as the identity information of the first storage device, the first storage device to the storage device cluster based on the expansion configuration information to form an expanded storage device cluster.

Abstract: A curiosity-driven Android app automatic testing method includes the following steps: 1) a left part represents a pre-processing assembly which achieves abstraction of an Android app state based on an Android interface structure; 2) a right part is curiosity-driven reinforcement learning module which maintains a historical access state set and optimizes an exploration policy constantly to guide a test to find more new states under the guidance of a reward function based on a curiosity thought; and 3) a middle part represents an advanced guidance module of a deterministic finite automaton (DFA), where the DFA is constructed during operation to record all access states and frequencies thereof; and if the new states are not explored within a given time budget, an AndroidExplore selects the most curious state as a starting point of a next exploration according to global information of the DFA.

Abstract: Certain aspects of the present disclosure provide techniques for packet buffering. A method that may be performed by a receiving node includes dynamically determining one or more time durations to buffer packets. The one or more time durations can be different than a time duration of a configured timer for buffering the packets. The receiving node may input one or more parameters to a machine learning algorithm and obtain, as output of the machine learning algorithm based on the input one or more parameters, one or more time durations to buffer packets. The receiving node buffers packets for the determined one or more time durations. The receiving node may use machine learning to dynamically determine the one or more time durations to buffer packet. The buffering may be at a radio link control (RLC) reassembling buffer and/or a packet data convergence protocol (PDCP) buffer.