Abstract: A knob includes a first assembly and a second assembly. The first assembly includes a first sensing element. The second assembly is sleeved at the first assembly and includes a second sensing element. The first sensing element is configured to, when the second assembly rotates around a rotation axis, be fixed relative to the rotation axis. The second sensing element is configured to, when the second assembly rotates around the rotation axis, move around the rotation axis.

Abstract: Provided is a method and a system for accelerated life testing (ALT) of a proton exchange membrane fuel cell (PEMFC). In the present disclosure, a collected voltage-time sequence data of the PEMFC is filtered and subjected to empirical mode decomposition (EMD), such that a voltage data is decomposed to obtain K intrinsic mode functions. A constructed bidirectional long short-term memory-based artificial neural network (BiLSTM) shows majority input characteristics and can model each of the intrinsic mode functions independently, thereby reducing a difficulty of long-cycle life prediction in limited training data scenarios. In addition, optimal parameters of the BiLSTM are optimized through a sparrow search algorithm, which greatly improves a prediction accuracy of a remaining useful life for the PEMFC. The method and the system of the present disclosure exhibit low computing cost, simple parameter setting, and high prediction accuracy, and are extremely suitable for operation and maintenance of the PEMFC.

Abstract: An economizer and an air conditioning system. The economizer includes a housing with a refrigerant inlet for connecting to a first heat exchanger, a refrigerant outlet for connecting to a second heat exchanger, and a suction port for connecting to an intermediate stage of a compressor provided thereon; and a choke portion configured to protrude inwardly from an inner wall of the housing and arranged close to the suction port, such that refrigerant flowing to the suction port is at least partially obstructed. According to the technical solutions of the present application, the refrigerant flowing to the suction port can be at least partially obstructed. When the liquid droplets carried by the refrigerant are obstructed by the choke portion, the liquid droplets are adsorbed on the wall surface to form a liquid film, and the movement of the liquid film is obstructed by the choke portion.

Abstract: An electrochemical cell and battery system including cells, each cell including a catholyte, an anolyte, and a separator disposed between the catholyte and anolyte and that is permeable to the at least one ionic species (for example, a metal cation or the hydroxide ion). The catholyte solution includes a ferricyanide, permanganate, manganate, sulfur, and/or polysulfide compound, and the anolyte includes a sulfide and/or polysulfide compound. These electrochemical couples may be embodied in various physical architectures, including static (non-flowing) architectures or in flow battery (flowing) architectures.

Abstract: The present disclosure provides a fuel cell fault diagnosis method and system.

Abstract: A method in a computing environment for application start up includes: generating a directed acyclic graph (DAG) for tasks that are performed during application start-up; performing topological sorting of the tasks based on the DAG to define an order for the tasks; allocating a tenant-specific priority queue; loading the tasks in the tenant-specific priority queue in the order determined by the topological sorting; allocating a plurality of computing threads to executing the tasks; executing the tasks using the plurality of computing threads that were allocated, wherein a plurality of the tasks are executed in parallel, and the tasks are assigned to the computing threads in an order based on the order in which the task are loaded in the tenant-specific priority queue; preparing a start page for use in accessing the application; and causing the start page to be displayed on a user access device for accessing the application.

Abstract: Approaches for data processing at a database system are described. A method may include identifying a first subset of provisioning tasks associated with a first phase of the multi-phase provisioning procedure and a second subset of provisioning tasks associated with a second phase of the multi-phase provisioning procedure. The method may include running the first subset of provisioning tasks on a plurality of software instances of a pool of software instances prior to a provisioning request for the software instance. The method may include receiving, from a user, the provisioning request. The method may include running, based at least in part on the provisioning request and on the software instance from the pool of software instances, the second subset of provisioning tasks, wherein the second subset of provisioning tasks are specific to the user. The method may include provisioning the software instance to the user.

Abstract: Techniques are disclosed relating to filtering messages. A computer system may detect an occurrence of an event of a particular type. The computer system may determine whether to enqueue, in a message queue, a message that identifies a set of tasks to be performed in relation to the event. The determination may be based on a response received from a cache that stores a subset of filter rules of a filter rules table. Based on the response indicating a cache miss, the computer system may enqueue the message in the message queue. A process that processes the message may be operable to resolve the cache miss by 1) accessing a filter rule from the filter rules table that indicates whether messages for events of the particular type should be enqueued in the message queue and 2) updating the cache to store the filter rule.

Abstract: Provided are an image fusion method and apparatus, and a portable terminal. The method comprises: obtaining several aligned images; respectively calculating gradient information of each image; setting a mask image of each image, and generating a target gradient image; performing a gradient operation on the target gradient image, and obtaining a target Laplacian image; performing a deconvolution transform on the Laplacian image, and generating a fused panoramic image. The technical solution generates a Laplacian image by performing gradient information calculations on several images, and then performs a deconvolution transform to generate a fused panoramic image, thereby eliminating image stitching color differences, and implementing a better image fusion effect.

Abstract: The present invention relates to an aqueduct leakage repairing method, a formwork is provided within an aqueduct body; a reinforcing layer is formed by using the formwork through casting at inner sides of the aqueduct body; the formwork comprises side formwork plates, bottom formwork plates, and axillary angle formwork plates; the side formwork plates are arranged at inner vertical walls of the aqueduct body, the bottom formwork plates are arranged on a bottom of the aqueduct body, the bottom formwork plates are connected with the side formwork plates through the axillary angle formwork plates; and the axillary angle formwork plates are each provided with a plurality of ribs. The aqueduct leakage repairing method effectively reinforces penetration damage of the aqueduct, and the construction process is simple since the formwork is free from dismantling after construction.

Abstract: Techniques are disclosed relating to filtering messages. A computer system may detect an occurrence of an event of a particular type. The computer system may determine whether to enqueue, in a message queue, a message that identifies a set of tasks to be performed in relation to the event. The determination may be based on a response received from a cache that stores a subset of filter rules of a filter rules table. Based on the response indicating a cache miss, the computer system may enqueue the message in the message queue. A process that processes the message may be operable to resolve the cache miss by 1) accessing a filter rule from the filter rules table that indicates whether messages for events of the particular type should be enqueued in the message queue and 2) updating the cache to store the filter rule.

Abstract: Methods, computer readable media, and devices for dynamically identifying and associating disparate records are disclosed. One method may include receiving a first set of association criteria, identifying a first source object and a first target object based on the first set of association criteria, creating a first association object indicating an association between the first source object and the first target object, storing the first association object, receiving a second set of association criteria, identifying a second source object and a second target object based on the second set of association criteria, and creating a second association object.

Abstract: The present disclosure discloses a method, device, electronic equipment and storage medium for generating a super night scene image. The method includes the following steps: acquiring consecutive multiple frames of original images, which include a frame of underexposed image and multiple frames of normally exposed images; performing stacked noise reduction processing on the multiple frames of normally exposed images to obtain a frame of normally noise-reduced image; performing gray scale transformation processing on the normally noise-reduced image to obtain a frame of overexposed image; fusing the underexposed image, the normally noise-reduced image and the overexposed image to obtain a frame of super night scene image.

Abstract: Methods, computer readable media, and devices for dynamically identifying and associating disparate records are disclosed. One method may include receiving a first set of association criteria, identifying a first source object and a first target object based on the first set of association criteria, creating a first association object indicating an association between the first source object and the first target object, storing the first association object, receiving a second set of association criteria, identifying a second source object and a second target object based on the second set of association criteria, and creating a second association object.

Abstract: A method for medical detection implemented in a medical detection device, includes a detection instruction being received by the device, the device detecting a temperature of a test strip and determining a measurement error rate corresponding to the actual temperature of the test strip, a relationship having been established between temperatures and measurement error rates for test strip temperatures. When the medical detection device receives the test strip that carries blood of a user, at least one physiological parameter based on the blood on the test strip is measured, and a measurement value of the at least one physiological parameter is obtained. And the measurement value is compensated according to the measurement error rate, and a correction value of the physiological parameter is thus obtained.

Abstract: The present invention provides a video decoding method and a camera. Said method comprises: loading a video, and decoding each frame from the video; calculating, for any two adjacent frames, a first optical flow field; calculating, according to the first optical flow field, a second optical flow field of a position where a frame is to be inserted, the position being located between two adjacent frames; using the second optical flow field to calculate a corresponding pixel position, in a previous frame of two adjacent frames, of each pixel of the frame to be inserted, and assigning the pixel value of the previous frame to the pixel of the frame to be inserted; and placing the inserted frame and the decoded original frame together according to a time sequence, so as to reconstitute a video having a high frame rate. The present invention eliminates or improves discrete motion, providing a more fluent viewing experience.