Abstract: A spinning-drawing-winding device for industrial polylactic-acid fiber includes a double-surface oiling mechanism, a filament shearing-suctioning device, a pre-interlacer and a splitting filament roller disposed in sequence according to a production process; a drawing-winding device cooperates with a spinning device, a tow passing from the spinning device through the double-surface oiling mechanism, the filament shearing-suctioning device, and the pre-interlacer in sequence until the tow is conveyed to the splitting filament roller; the drawing-winding device and the spinning device are configured as a parallel configuration, so that the tow between the spinning device and the splitting filament roller are arranged in a vertical direction and is tangential to the splitting filament roller, and therefore the tow is without deflection, thereby avoiding damaging the tow due to a friction caused by a higher deflection.

Abstract: In a method for calibrating a signal, a calibration parameter corresponding to a signal having a preset bandwidth is obtained and a calibrated signal is obtained by calibrating, based on a frequency of a signal to be calibrated and the calibration parameter, the signal to be calibrated.

Abstract: The present application relates to the field of underwater power supply technologies, and provides a long-distance underwater power supply system that is applied to a submarine observation system including a plurality of load nodes. The power supply system includes at least one terminal power supply and a plurality of branching nodes. The terminal power supply is sequentially electrically connected to the plurality of branching nodes through a trunk cable, and may output a constant current to the trunk cable. The plurality of branching nodes are respectively connected to at least one corresponding load node, and each of the branching nodes and the corresponding load node are connected to an ocean ground, respectively. The branching node may convert the constant current transmitted from the trunk cable into a constant-voltage current, and output the constant-voltage current to the load node.

Abstract: Systems, devices, computer-implemented methods, and tangible non-transitory computer readable media for performing multilayered generation and processing of computer instructions are provided. For example, a computing device may receive a request with instructions in a first computer language, parse the instructions in the first computer language, analyze the instructions in the first computer language in view of information describing structure of a first application, generate instructions in a second computer language different from the first computer language where the instructions in the second computer language are generated based on the instructions in the first computer language and the information describing structure of the first application, obtain a result from a second application where the result comprises information based on the instructions in the second computing language, and provide the result in response to the request comprising the instructions in the first computer language.

Abstract: In a method for calibrating a signal, a calibration parameter corresponding to a signal having a preset bandwidth is obtained and a calibrated signal is obtained by calibrating, based on a frequency of a signal to be calibrated and the calibration parameter, the signal to be calibrated.

Abstract: In a spinning-drawing-winding device and a combined machine for industrial bio-based polyamide, according to a traveling direction of a tow, two adjacent rotational directions among a rotational direction of the tow winding through the first pair of drawing hot rollers, a rotational direction of the tow winding through the second pair of drawing hot rollers, a rotational direction of the tow winding through the third pair of drawing hot rollers, a rotational direction of the tow winding through the fourth pair of drawing hot rollers are in opposite to spin an industrial bio-based polyamide filament of 55 dtex-2222 dtex.

Abstract: A spinning-drawing-winding device for industrial polylactic-acid fiber includes a double-surface oiling mechanism, a filament shearing-suctioning device, a pre-interlacer and a splitting filament roller disposed in sequence according to a production process; a drawing-winding device cooperates with a spinning device, a tow passing from the spinning device through the double-surface oiling mechanism, the filament shearing-suctioning device, and the pre-interlacer in sequence until the tow is conveyed to the splitting filament roller; the drawing-winding device and the spinning device are configured as a parallel configuration, so that the tow between the spinning device and the splitting filament roller are arranged in a vertical direction and is tangential to the splitting filament roller, and therefore the tow is without deflection, thereby avoiding damaging the tow due to a friction caused by a higher deflection.

Abstract: Methods and computer systems for storing a query plan in a cache are provided. The method can include: determining a use frequency of the query plan; determining a target storage layer for storing the query plan based on the determined use frequency, wherein the cache includes at least two storage layers and each of the storage layers is associated with a compression level of query plans; processing the query plan according to the compression level of the target storage layer; and storing the processed query plan in the target storage layer.

Abstract: Systems, devices, computer-implemented methods, and tangible non-transitory computer readable media for performing multilayered generation and processing of computer instructions are provided. For example, a computing device may receive a request with instructions in a first computer language, parse the instructions in the first computer language, analyze the instructions in the first computer language in view of information describing structure of a first application, generate instructions in a second computer language different from the first computer language where the instructions in the second computer language are generated based on the instructions in the first computer language and the information describing structure of the first application, obtain a result from a second application where the result comprises information based on the instructions in the second computing language, and provide the result in response to the request comprising the instructions in the first computer language.

Abstract: The present disclosure provides a high-strength and high-plasticity casting high-entropy alloy (HEA), having a general formula of AlaCobCrcTidFeeNifCug, where 6.0<a?8.0, 18.0<b?23.0, 7.5?c<12.5, 2.0<d?8.5, 15.5<e?20.0, 28.0<f?37.0, 0.2<g?10.0, and a+b+c+d+e+f+g=100. The casting HEA can be prepared in one step and has excellent mechanical properties. The various metal raw materials are environmental-friendly and suitable for large-scale industrial production.

Abstract: Systems, devices, computer-implemented methods, and tangible non-transitory computer readable media for performing multilayered generation and processing of computer instructions are provided. For example, a computing device may receive a request with instructions in a first computer language, parse the instructions in the first computer language, analyze the instructions in the first computer language in view of information describing structure of a first application, generate instructions in a second computer language different from the first computer language where the instructions in the second computer language are generated based on the instructions in the first computer language and the information describing structure of the first application, obtain a result from a second application where the result comprises information based on the instructions in the second computing language, and provide the result in response to the request comprising the instructions in the first computer language.

Abstract: A verification method of an allelopathic inhibition mechanism based on ecological stoichiometric equilibrium interference is disclosed. By taking ecological stoichiometric characteristics and growth characteristics of Phalaris arundinacea under an equilibrium state as a control, a relative coefficient of variation (RCv) is used to characterize an interference intensity of different intensities of allelopathic stress on ecological stoichiometric equilibrium of the P. arundinacea and an inhibitory intensity of different intensities of allelopathic stress on growth of the P. arundinacea. Then, through correlation analysis among parameters including the intensity of the allelopathic stress, the ecological stoichiometric equilibrium interference, and growth inhibition, a method is provided to verify whether a new mechanism of allelopathic inhibition based on the ecological stoichiometric equilibrium interference exists.

Abstract: Various embodiments of the invention enable an ADV to dynamically adjust its behaviors to emulate behaviors of a vehicle operated by a human driver when the ADV encounters an obstacle. A dynamic cost function can be used to collect real-time values of a set of parameters, and use the real-time values to constantly adjust a preferred safety distance where the ADV can be stopped ahead of the obstacle. An method includes determining a first distance to the obstacle in response to detecting an obstacle ahead of the ADV; and for each of a number of iterations, collecting a real-time value for each of a set of parameters, determining an offset to the first distance using the real-time value for each of the set of parameters, calculating a second distance based on the first distance and the offset, and controlling the ADV in view of the second distance using an expected value of each of the set of parameters, such that the ADV can stop at a point having the second distance to the obstacle.

Abstract: Methods, systems, devices, and tangible non-transitory computer readable media facilitating assignment and/or dynamic application of a permission rule to a group of entities. In an example embodiment, the disclosed technology can: define a group of entities having a common attribute; assign a permission rule to the group of entities based at least in part on the common attribute; project the permission rule onto one or more entities in the group of entities based at least in part on assignment of the permission rule to the group of entities; obtain data indicative of a change in group membership status of an entity in the group of entities; and/or update a projection of the permission rule onto the entity to modify an association of the entity with the group of entities and/or the permission rule based at least in part on receipt of the data.

Abstract: Citric acid is purified to remove metal ions through a two-step filtration process. A first filter is used to perform a first filtration, then a second filter is used to perform a second filtration on citric acid solution that has been subject to the first filtration. The first and second filters can include the same filter membrane material. The filter used as the first filter can be a relatively dirtier, more loaded filter compared to the filter used as the second filter. The first filtration can be performed over four hours of recirculating the citric acid solution through the first filter, and the second filtration can be performed over approximately two and one half hours of recirculating the citric acid solution through the second filter. Such a purification process can remove calcium and magnesium ions to render citric acid suitable as a cleaning solution in semiconductor processing.

Abstract: Methods, systems, devices, and tangible non-transitory computer readable media facilitating assignment and/or dynamic application of a permission rule to a group of entities. In an example embodiment, the disclosed technology can: define a group of entities having a common attribute; assign a permission rule to the group of entities based at least in part on the common attribute; project the permission rule onto one or more entities in the group of entities based at least in part on assignment of the permission rule to the group of entities; obtain data indicative of a change in group membership status of an entity in the group of entities; and/or update a projection of the permission rule onto the entity to modify an association of the entity with the group of entities and/or the permission rule based at least in part on receipt of the data.

Abstract: A verification method of an allelopathic inhibition mechanism based on ecological stoichiometric equilibrium interference is disclosed. By taking ecological stoichiometric characteristics and growth characteristics of Phalaris arundinacea under an equilibrium state as a control, a relative coefficient of variation (RCv) is used to characterize an interference intensity of different intensities of allelopathic stress on ecological stoichiometric equilibrium of the P. arundinacea and an inhibitory intensity of different intensities of allelopathic stress on growth of the P. arundinacea. Then, through correlation analysis among parameters including the intensity of the allelopathic stress, the ecological stoichiometric equilibrium interference, and growth inhibition, a method is provided to verify whether a new mechanism of allelopathic inhibition based on the ecological stoichiometric equilibrium interference exists.

Abstract: The present disclosure provides a high-strength and high-plasticity casting high-entropy alloy (HEA), having a general formula of AlaCobCrcTidFeeNifCug, where 6.0<a?8.0, 18.0<b?23.0, 7.5?c<12.5, 2.0<d?8.5, 15.5<e?20.0, 28.0<f?37.0, 0.2<g?10.0, and a+b+c+d+e+f+g=100. The casting HEA can be prepared in one step and has excellent mechanical properties. The various metal raw materials are environmental-friendly and suitable for large-scale industrial production.

Abstract: Systems, devices, computer-implemented methods, and tangible non-transitory computer readable media for performing multilayered generation and processing of computer instructions are provided. For example, a computing device may receive a request with instructions in a first computer language, parse the instructions in the first computer language, analyze the instructions in the first computer language in view of information describing structure of a first application, generate instructions in a second computer language different from the first computer language where the instructions in the second computer language are generated based on the instructions in the first computer language and the information describing structure of the first application, obtain a result from a second application where the result comprises information based on the instructions in the second computing language, and provide the result in response to the request comprising the instructions in the first computer language.

Abstract: Methods and apparatus are provided for using machine learning to estimate query resource consumption in a massively parallel processing database (MPPDB). In various embodiments, the machine learning may jointly perform query resource consumption estimation for a query and resource extreme events detection together, utilize an adaptive kernel that is configured to learn most optimal similarity relation metric for data from each system settings, and utilize multi-level stacking technology configured to leverage outputs of diverse base classifier models. Advantages and benefits of the disclosed embodiments include providing faster and more reliable system performance and avoiding resource issues such as out of memory (OOM) occurrences.