Abstract: An arrowhead assembly comprises a connector element configured to connect to a forward end of a shaft; an arrowhead body movably connected to the connector element; the arrowhead body including a center portion and a plurality of blades each extending from the center portion; the center portion movable axially with respect to the connector element between a forward position and a rearward position; when in the forward position the center position being constrained against lateral movement with respect to the connector element; and when in the rearward position the center position being enabled to move laterally with respect to the connector element.

Abstract: Performance on a storage device may be improved when executing a write command with sequential host data. The storage device optimizes logical-to-physical table updates for fixed granularity logical-to-physical tables that are populated when writing the sequential host data. A host interface module on the storage device may receive, from a host, a command to store the host data on a memory device and classify the host data as sequential host data or random host data. A flash translation layer on the storage device predetermines open contiguous blocks on the memory device where the sequential host data is to be written and provides a beginning address of the open contiguous blocks to the host interface module. The host interface module populates an address translation table with logical-to-physical mappings starting at the beginning address with an appropriate offset. Each entry in the address translation table corresponds to a fixed granularity.

Abstract: A lens driving module is configured to provide an imaging lens system with auto-focus functionality. The imaging lens system is disposed between a preloading element and a driving base of the lens driving module. The preloading element includes an injection molded part and a ferromagnetic part partially embedded in the injection molded part. A rollable element is disposed in each of mounting structures of the injection molded part and in contact with a displaceable lens carrier of the imaging lens system. The ferromagnetic part and a magnet disposed on the displaceable lens carrier together generate a magnetic attraction force, such that the displaceable lens carrier exerts a preloading force on the rollable element. The driving base includes a driving coil and an electrical wiring pattern. The driving coil corresponds to the magnet for generating a driving force to drive the displaceable lens carrier to move along the optical axis.

Abstract: A storage device is communicatively coupled to a host that stores data on a primary memory package on the storage device. A controller on the storage device may monitor the temperature of components on the storage device and determine when the temperature exceeds a thermal temperature limit. When the temperature exceeds a thermal temperature limit, the controller may suspend certain operations on the primary memory package and write host data to the secondary memory package on the storage device. The controller may continue to monitor the temperature on the storage device, determine when the temperature on the storage device returns to an acceptable level, transfer data from the secondary memory package to the primary memory package, and resume writing host data to primary memory package.

Abstract: The embodiments of the present application disclose a method and apparatus for calculating carbon emission intensities, and a terminal and a storage medium thereof, which belong to the field of energy management. The method includes: acquiring basic attribute data of a power system, and acquiring an active power generation amount of a power generator set based on the basic attribute data; acquiring an initial value of a carbon emission factor of power generation fuel of the power generator set according to a life cycle type of the power generator set, wherein the initial value is defined to indicate a carbon emission amount caused by a unit power generation amount; and acquiring a carbon intensity of the power generator set based on the active power generation amount and the initial weight value of the power generator set.

Abstract: A photovoltaic power generation system includes an inverter, a controller, and at least two direct current branch circuits. The leakage current detection apparatus is configured to: detect a leakage current of the direct current branch circuit on which the leakage current detection apparatus is located and send the leakage current to the controller. The controller is further configured to: when the photovoltaic power generation system runs and a value of a leakage current of the direct current branch circuit exceeds a preset range, determine that an insulation fault occurs on the direct current branch circuit. The system can determine the direct current branch circuit on which the insulation fault occurs in the photovoltaic power generation system, so that measures are taken in time for the direct current branch circuit on which the insulation fault occurs, to eliminate a potential safety hazard.

Abstract: Embodiments of the application disclose a battery. A first current collector in the battery is brought into a contact with a battery housing, so that a part of heat generated by a cell can be directly conducted to the battery housing through the first current collector. The battery includes a battery housing, a first current collector, a separator, and a second current collector. The first current collector, the separator, and the second current collector are stacked and disposed inside the battery housing. The polarities of the first current collector and the second current collector are different. The first current collector is in contact with the battery housing.

Abstract: Disclosed are a privacy-protection-based data processing model acquisition method and apparatus, a terminal device and a storage medium. The method includes: acquiring sensor data of a plurality of sensors of a preset Internet of Things device; training an initial data model corresponding to each of the sensors through the sensor data corresponding to the sensor to obtain an intermediate data model corresponding to each of the sensors, and integrating the intermediate data models corresponding to the sensors to form an integrated data model; processing new data through the integrated data model and random noise to acquire a label category corresponding to the new data; and training the integrated data model according to the new data and the label category of the new data to acquire a data model. The method solved the technical problem of poor privacy protection of Internet of Things data.

Abstract: A flexible intelligent manufacturing and production system for a customized denture includes a server, a processing system, a cutting device, a tooth unloading device and a sintering device. The processing system, the cutting device, the tooth unloading device and the sintering device all have a function of receiving/sending commands, and are all connected to the server signal. The processing system is used for processing a three-dimensionality (3D) tooth model file and a 3D zirconium block graphic file, and generating a file. The server is used for receiving/sending the file; the cutting device is used for receiving a tool path file and cutting a zirconium block according to the tool path file. The tooth unloading device is used for receiving/sending a coordinate file and cutting a connecting rod according to the coordinate file. The sintering device is used for sintering a denture.

Abstract: A photovoltaic system includes an inverter and a plurality of photovoltaic units connected to the inverter. Each photovoltaic unit includes a controller and one or more photovoltaic modules connected to the controller. The controller in each photovoltaic unit is further configured to obtain a power carrier signal sent by a controller in another photovoltaic unit of the plurality of photovoltaic units, determine an attenuation reference factor of the power carrier signal based on the obtained power carrier signal, and send the attenuation reference factor to the inverter. The inverter is further configured to group the plurality of photovoltaic units based on the attenuation degree of the power carrier signal obtained by each photovoltaic unit. This application can implement automatic grouping of photovoltaic units.

Abstract: According to one embodiment, a skill platform system includes a data acquisition unit, a model creation unit and a skill provision unit. The data acquisition unit is configured to acquire data on work of a skilled worker at a first site. The model creation unit is configured to perform modeling a skill of the skilled worker using the data acquired by the data acquisition unit. The skill provision unit is configured to provide the skill of the skilled worker to a second site by using the model created by the model creation unit.

Abstract: An electronic device includes a heat dissipation part, a plurality of electronic components, and a fixed potential part. The electronic component is fastened to the heat dissipation part, and an insulation pad is disposed between the electronic component and the heat dissipation part. The fixed potential part has a fixed potential, and the heat dissipation part is electrically connected to the fixed potential part. The heat dissipation part has the fixed potential, a potential difference between the electronic component and the heat dissipation part is reduced, and a requirement of a safety specification between the electronic component and the heat dissipation part is reduced. The electronic component can be relatively close to the heat dissipation part, and a surrounding energized component of the heat dissipation part can also be closer to the heat dissipation part.

Abstract: Systems, methods, and apparatuses for providing dynamic, prioritized spectrum utilization management. The system includes at least one monitoring sensor, at least one data analysis engine, at least one application, a semantic engine, a programmable rules and policy editor, a tip and cue server, and/or a control panel. The tip and cue server is operable utilize the environmental awareness from the data processed by the at least one data analysis engine in combination with additional information to create actionable data.

Abstract: A storage device performs error handling using asymmetric blocks in a memory device. The memory may be divided into blocks of varying sizes. A controller on the storage device may process instructions by writing data to a first block on the memory device. If the controller determines an error occurred with a write operation to the first block and if the controller is unable to find a second block that is the same size as the first block, the controller may replace the first block with a second block that is larger than the first block. The controller may mark the second block and continue with the write operation.

Abstract: Disclosed are a semantic reasoning method and a terminal for a learning target in an education metaverse. The method includes receiving a description text of a learning target, segmenting the description text into a lexical item sequence, extracting an entry from the lexical item sequence, extracting a semantic lexical item based on the entry, and mapping the semantic lexical item into a first word vector. By capturing the semantic feature vector in the word vector, the subject and knowledge points in the learning target are obtained by reasoning, the target knowledge points of the learning target are determined and positioned, and the association relationship between the target knowledge points is obtained, so that the semantic information of the learning target can be fully mined, and the accuracy of the learning target extraction can be improved. It matches with the corresponding teaching scene based on the learning targets.

Abstract: Techniques regarding manufacturing one or more digital product designs are provided. For example, one or more embodiments described herein can include a system, which can comprise a memory that can store computer executable components. The system can also comprise a processor, operably coupled to the memory, and that can execute the computer executable components stored in the memory. The computer executable components can comprise a user interface component that generates a manufacturability report regarding a product design in relation to a manufacturing process. The manufacturability report can indicate whether a product feature included in the product design is permissible based on a plurality of manufacturing considerations associated with the manufacturing process.

Abstract: Disclosed herein are an antenna device and a smart television. The antenna device includes a first WIFI antenna, a Bluetooth antenna, and a second WIFI antenna, the Bluetooth antenna is provided between the first WIFI antenna and the second WIFI antenna, conductor portions are provided between the Bluetooth antenna and the first WIFI antenna, and between the Bluetooth antenna and the second WIFI antenna, respectively, and the conductor portions are grounded.

Abstract: Disclosed are a cultivation data managing platform and a managing method using a dynamic output function. The present invention can generate a plant cultivation recipe on the basis of plant cultivation data and control data by using a communication application, and trade and distribute the generated plant cultivation recipe.