Abstract: A device and a method for recovering by-product oxygen from water-electrolysis hydrogen production using a low-temperature method are provided, solving the waste problem of by-product oxygen in the green water-electrolysis hydrogen production system. The device according to the present disclosure comprises an oxygen clarifying system, a pressurizing and heat exchanging system, and a circulating gas compression and expansion refrigeration system. The recovering method according to the present disclosure comprises the following steps: first clarifying and purifying the by-product oxygen from water-electrolysis hydrogen production is to remove hydrogen, carbon monoxide, carbon dioxide, water and other impurities in the oxygen; and then, liquefying, pressurizing and heat exchanging the pure oxygen to obtain the product oxygen and liquid oxygen with required pressure. In the whole process, the cooling capacity is provided by the circulating gas expansion refrigeration system.

Abstract: A camshaft tone wheel, system, and method are provided for determining a rotational position of an internal combustion engine. Sensors detect unique features positioned around the camshaft tone wheel in conjunction with a tooth count on a crankshaft tone wheel, or in conjunction with elapsed time for passage of the unique features during rotation of the camshaft tone wheel, to resolve engine position and enable accurately timed combustion.

Abstract: An operator learning model generator is provided for training a smooth operator learning model for predicting airflow dynamics in a room used by a controller connected to a heating, ventilation and air conditioning (HVAC) system. The operator learning model generator includes an interface circuit configured to receive a training dataset via a network connected to a simulation computer, wherein the training dataset includes solution trajectories of airflow in the room for various times series of control actions given to the HVAC system, a memory configured to store the smooth operator learning model comprising an auto-encoder and a neural ordinary differential equation, the training dataset, and training instructions for the smooth operator learning model, and a processor configured to train the smooth operator learning model stored in the memory, wherein the training instructions comprise a jerk regularization that enforces smoothness of the dynamics predicted by the smooth operator learning model.

Abstract: A Hierarchical Deep Learning Neural Networks-Artificial Intelligence system for data processing, comprising a data collection module collecting data; an analyzing component extracting at least one feature from the data, and processing the extracted at least one feature to produce at least one reduced feature; and a learning component producing at least one mechanistic equation based on the at least one reduced feature.

Abstract: A device and a method for producing hydrogen and byproduct oxygen by using green electricity electrolyzed water are provided. The device comprises an oxygen purifying system, a heat exchange system, an air separation compression and expansion system, an air separation rectification system and a liquid oxygen storage system. The method comprises the following steps: first, purifying oxygen prepared by electrolyzing water by green electricity to remove impurities such as hydrogen, carbon monoxide, carbon dioxide and water in the oxygen, then feeding the pure oxygen into the heat exchange system, performing heat exchange liquefaction to obtain liquid oxygen, coupling the liquid oxygen generated by rectification of the air separation rectification system, and obtaining pressurized oxygen through the heat exchange system and the air separation compression and expansion system.

Abstract: A device and a method for recovering by-product oxygen from water-electrolysis hydrogen production using a low-temperature method are provided, solving the waste problem of by-product oxygen in the green water-electrolysis hydrogen production system. The device according to the present disclosure comprises an oxygen clarifying system, a pressurizing and heat exchanging system, and a circulating gas compression and expansion refrigeration system. The recovering method according to the present disclosure comprises the following steps: first clarifying and purifying the by-product oxygen from water-electrolysis hydrogen production is to remove hydrogen, carbon monoxide, carbon dioxide, water and other impurities in the oxygen; and then, liquefying, pressurizing and heat exchanging the pure oxygen to obtain the product oxygen and liquid oxygen with required pressure. In the whole process, the cooling capacity is provided by the circulating gas expansion refrigeration system.

Abstract: A method and system for updating nodes in a hierarchical data structure is described. The system receives an update to a first node representing a record in a hierarchical data structure. The system determines at least one other node that needs updating based on the update to the first node. The system compares the number of nodes that need updating based upon the update to the first node to a maximum number to determine whether the number of nodes that need updating is less than, equal to and greater than the maximum number. The system performs a synchronous update of the nodes that need updating in response to a determination that the number of nodes is less than or equal to the maximum number and an asynchronous update of the nodes that need updating in response to a determination that the number of nodes is greater than the maximum number.

Abstract: A method and system for generating a hierarchical data structure is described. The hierarchical data structure is comprised of a plurality of nodes, wherein each node represents a record. The system monitors the generation of the hierarchical data structure to determine if the number of nodes in the hierarchical data structure exceeds a predetermined maximum number of nodes for the hierarchical data structure. The maximum number of nodes is independent of a width and a height of the hierarchical data structure. The system generates a notification in response to a determination that the number of nodes in the hierarchical data structure exceeds the maximum number of nodes.

Abstract: Techniques for a circuit board for an input device are described. In at least some embodiments, an input device is integrated into a circuit board of an apparatus. For instance, a touch interaction region of the input device is formed by cutting and/or etching a portion of the circuit board such that the touch interaction region is moveable with respect to adjacent portions of the circuit board. According to one or more embodiments, an input device includes a switch such that movement of the touch interaction region actuates the switch to generate a click input event.

Abstract: A method and system for re-configuring a schedule for maintenance of an asset by use of a software product, which includes: defining, at a server, an asset object for receiving usage data of the asset wherein the usage data is generated by sensing devices associated with activities of the asset; configuring, at the server, a task relating to maintenance of the asset based on a pre-configured schedule, wherein the task is dependent on the usage data; receiving the usage data at the server for storing in the asset object; and analyzing, at the server, the usage data stored in the asset object for determining applicability of the task or changes in the task for re-configuring the pre-configured schedule.

Abstract: The description relates to devices having sensing tips and releasably retaining the sensing tips. One example includes a tip holder that defines a cavity that receives the sensing tip. This example also includes first and second clamps positioned radially around the tip holder and extending through holes in the tip holder into the cavity to contact the sensing tip. The example further includes a flexible clamp band positioned around the first and second clamps and biasing the first and second clamps inwardly against the sensing tip.

Abstract: The present disclosure discloses system resource allocating method and device based on account activity level, wherein the method includes: acquiring an account activity level parameter of a user and calculating an account activity level of each user according to the account activity level parameter of the user; determining an account activity level rank of each user according to the account activity level of the user and a preset account activity level rank dividing manner; establishing an account activity level index of each user according to a user number, the account activity level and the account activity level rank of the user; allocating the system resource for performing the information processing to a target user according to the account activity level index of the target user, where the information processing is to be performed on the target user.

Abstract: Techniques for a circuit board for an input device are described. In at least some embodiments, an input device is integrated into a circuit board of an apparatus. For instance, a touch interaction region of the input device is formed by cutting and/or etching a portion of the circuit board such that the touch interaction region is moveable with respect to adjacent portions of the circuit board. According to one or more embodiments, an input device includes a switch such that movement of the touch interaction region actuates the switch to generate a click input event.

Abstract: A method and system for updating nodes in a hierarchical data structure is described. The system receives an update to a first node representing a record in a hierarchical data structure. The system determines at least one other node that needs updating based on the update to the first node. The system compares the number of nodes that need updating based upon the update to the first node to a maximum number to determine whether the number of nodes that need updating is less than, equal to and greater than the maximum number. The system performs a synchronous update of the nodes that need updating in response to a determination that the number of nodes is less than or equal to the maximum number and an asynchronous update of the nodes that need updating in response to a determination that the number of nodes is greater than the maximum number.

Abstract: A method and system for generating a hierarchical data structure is described. The hierarchical data structure is comprised of a plurality of nodes, wherein each node represents a record. The system monitors the generation of the hierarchical data structure to determine if the number of nodes in the hierarchical data structure exceeds a predetermined maximum number of nodes for the hierarchical data structure. The maximum number of nodes is independent of a width and a height of the hierarchical data structure. The system generates a notification in response to a determination that the number of nodes in the hierarchical data structure exceeds the maximum number of nodes.

Abstract: The description relates to devices having sensing tips and releasably retaining the sensing tips. One example includes a tip holder that defines a cavity that receives the sensing tip. This example also includes first and second clamps positioned radially around the tip holder and extending through holes in the tip holder into the cavity to contact the sensing tip. The example further includes a flexible clamp band positioned around the first and second clamps and biasing the first and second clamps inwardly against the sensing tip.

Abstract: Techniques for a touch input in a circuit board are described. In at least some embodiments, a touch input device is integrated into a circuit board of an apparatus. For instance, a touch interaction region of the touch input device is formed by cutting and/or etching a portion of the circuit board such that the touch interaction region is moveable with respect to adjacent portions of the circuit board. According to one or more embodiments, a touch input device includes a switch such that movement of the touch interaction region actuates the switch to generate a click input event.

Abstract: Techniques for a touch input in a circuit board are described. In at least some embodiments, a touch input device is integrated into a circuit board of an apparatus. For instance, a touch interaction region of the touch input device is formed by cutting and/or etching a portion of the circuit board such that the touch interaction region is moveable with respect to adjacent portions of the circuit board. According to one or more embodiments, a touch input device includes a switch such that movement of the touch interaction region actuates the switch to generate a click input event.