Abstract: An apparatus includes a silicon (Si) optical phase shifter. In an embodiment, the optical phase shifter comprises a planar optical waveguide having a silicon optical core, and a pair of biasing electrodes located along opposite sides of a segment of the silicon optical core. The segment of the silicon optical core comprises a series of p-n junctions. The series extends in a direction transverse to an optical propagation direction in a segment of the planar optical waveguide including the segment of the silicon optical core. At least two of the p-n junctions are configured to be reverse biased by applying a voltage across the biasing electrodes.

Abstract: This disclosure provides a query task execution method, apparatus, computer device, storage medium. The method includes: receiving a query task for a target data table; determining at least one candidate degree of parallelism for executing the query task based on a first number of child tables obtained by pre-partitioning the target data table; selecting a target degree of parallelism within a preset range of degrees of parallelism from the at least one candidate degree of parallelism; and determining required computing units according to the target degree of parallelism, and evenly allocating the child tables to the computing units which concurrently execute the query task based on the allocated child tables.

Abstract: A compost and planting system and a method thereof are disclosed, wherein a sewage produced from the organic waste contained in a composting container during decomposition is drained into circulation hubs positioned below a filtering bottom of a composter arrangement and flows into an air-water flowing chamber of an air-water source arrangement through liquid slots of a plurality of circulation hubs positioned in the air-water flowing chamber. A liquid is fed into the air-water flowing chamber of the air-water source arrangement via a liquid inlet to carry the sewage to flow in a lower portion of the air-water flowing chamber while an upper portion of the air-water flowing chamber is maintained to have a flow of air, such that the liquid in the lower portion of the air-water flowing chamber enters the circulation hubs through the liquid slots thereof to be absorbed by the planting soil contained in a soil tub and the circulation hubs positioned below the soil tub.

Abstract: A method for manufacturing a tubular enclosure for a battery cell includes bending a steel sheet into a tubular body. The steel comprises iron; carbon in a range from 0.01 wt % to 0.1 wt %; niobium in a range from 0.01 to 0.2 wt %; and at least one of a first group and a second group. The first group comprises copper in a range from 0.01 to 2.0 wt %; nickel in a range from 1 to 6.0 wt %; aluminum in a range from 0.1 to 1.0 wt %; manganese in a range from 0.1 to 1.0 wt %; and molybdenum in a range from 0.1 to 2.0 wt %. The second group comprises titanium in a range from 0.1 to 1.5 wt %; and silicon in a range from 0.1 to 1.5 wt %. Edges of the tubular body are welded and the tubular body is age hardened.

Abstract: A sensorless control method and a system for PMSM based on Luenberger observer. The system includes a power supply circuit, a sampling circuit, a main control circuit and a drive circuit. The power supply circuit supplies power to other circuits. The sampling circuit is used to obtain the three-phase current of the motor. The main control circuit outputs the control signal to the drive circuit to run the PMSM. The present invention uses an improved method for selecting the feedback coefficient of Luenberger observer, which makes the selection of Luenberger observer feedback coefficient more convenient and effective. Moreover, it can select optimal parameters globally based on this method, leading to adaptive adjustment of feedback coefficients for better observer performance when the rotational speed influences the position of the pole of the observer.

Abstract: The present invention relates to a crystal form A of a compound of formula (I), and a preparation method therefor and the use thereof. The crystal form A has good properties in terms of physical and chemical stability, water solubility, bioavailability and processing adaptability.

Abstract: A method for manufacturing a tubular enclosure for a battery cell includes roll forming a sheet of steel into a tubular body. The steel comprises carbon in a range from 0.02 to 0.3 wt %, manganese in a range from 0.2 to 2.0 wt %, at least one of chromium and molybdenum in a range from 0.5 wt % to 3.0 wt %, silicon in a range from 0.2 wt % to 2.0 wt %, at least one of niobium, titanium, and vanadium in a range from 0.01 wt % to 0.2 wt %, and iron. The method includes welding sides of the tubular body to form a weld seam, heating the tubular body to a temperature in a range from 900° C. to 950° C., and quenching the tubular body.

Abstract: Technologies are described and recited herein for producing controllable synthesized images include a geometry guided 3D GAN framework for high-quality 3D head synthesis with full control on camera poses, facial expressions, head shape, articulated neck and jaw poses; and a semantic SDF (signed distance function) formulation that defines volumetric correspondence from observation space to canonical space, allowing full disentanglement of control parameters in 3D GAN training.

Abstract: An image management method includes: receiving information about a signer and information about a target image that are sent by a first terminal device, where the signer is an object designated to sign the target image; obtaining a signature file based on the information about the signer and the information about the target image; and if a first digest that is of the target image and is returned by a container platform matches a second digest obtained based on the signature file, indicating the container platform to allow use of the target image to start a container.

Abstract: Methods and systems for time marking of media items at a platform using machine-learning are provided herein. An indication of a identified media item is provided as input to a machine-learning model and one or more outputs of the machine-learning model is obtained. The one or more obtained outputs comprise time marks identifying each of the plurality of content segments of the media item. Each of the plurality of content segments is associated with a segment start indicator for a timeline of the media item. A resulting duration is determined of a combination of the plurality of content segments for which the time marks were obtained from the one or more of outputs of the machine-learning model. Responsive to determining that the resulting duration is less than the duration of the media item, one or more further inputs is provided to the machine learning model.

Abstract: Embodiments of the present disclosure relate to a method and apparatus for sidelink based wireless sensing. According to some embodiments of the disclosure, a first user equipment (UE) may receive, from an upper layer of the first UE, a base station (BS) or a network node, a request to perform a PC5 based sensing; and perform the PC5 based sensing with a second UE in response to the request to perform the PC5 based sensing.

Abstract: The present disclosure relates to laser hybrid welding device and method for aluminum alloy based on in-situ self-generated reinforcing particle, comprises a fiber laser, a control system, a laser hybrid welding device, a powder feeder and a semiconductor laser. The laser hybrid welding device comprises a gantry crane, a partition, a first guide rail, a second guide rail, a workbench, a first laser welding head and a second laser welding head. The first laser welding head is connected to the semiconductor laser, and the second laser welding head is connected to the fiber laser. The powder feeder can accurately control the conveying speed and proportion of the powder to ensure that the powder particles are located at the to-be-welded position. A semiconductor laser is used for irradiating a to-be-welded position, and a high-temperature condition is generated, so that the particle reinforced phase is promoted to be generated in situ.

Abstract: Embodiments of the disclosure provide a method, apparatus, device, and storage medium for content capturing. The method includes, presenting a first capturing page corresponding to a single-segment capturing mode to capture a first video segment; in response to an indication of capturing completion being detected while the first capturing page is being presented, presenting a first editing page for editing at least the first captured video segment; and presenting a second capturing page to capture a second video segment based on an indication of new capturing being detected while the first editing page is being presented. In this way, it is possible for users to conduct content creating more easily and quickly, and different capturing requirements can further be met.

Abstract: A hybrid transactional/analytical processing (HTAP) database includes an online transaction processing (OLTP) engine, an online analytical processing (OLAP) engine provided separately from the OLTP engine, and a shared storage holding data of multiple tenants. The shared storage is configured to receive a request from the OLAP engine for evaluation of a predicate against the data stored on the shared storage. The shared storage is further configured to determine that a CPU utilization of the shared storage exceeds a predicate refusal threshold. Upon determining that the CPU utilization of the shared storage exceeds the predicate refusal threshold, the shared storage is further configured to refrain from evaluating at least a portion of the predicate.

Abstract: A irradiation welding apparatus including an irradiation welding generator having at least one irradiation welding head configured to apply an irradiation treatment to end contact surfaces of a first profile and a second profile to join the first profile and the second profile, where the at least one irradiation welding head forms a planar cross-sectional shape in an x-y directional plane relative to the irradiation welding generator.

Abstract: A metal alloy suitable for hot stamping comprises between about 0.05 wt % and about 0.45 wt % carbon; between about 0.5 wt % and about 4.5 wt % manganese; between about 0.5 wt % and about 6 wt % chromium; between about 0.5 and about 2.5 wt % Si, between about 0.1 wt % and about 0.3 wt % yttrium, the balance being iron and impurities. Structural parts with improved weldability are made by hot stamping a blank of the metal alloy.

Abstract: A device and a method for dynamic crack detection are provided. The device includes a probe configured to acquire permanent magnetic perturbation (PMP) data and motion-induced eddy current (MIEC) data of an inner surface of a pipe, and a controller, in communication with the probe, configured to: receive the PMP data and the MIEC data from the probe; determine the PMP data and the MIEC data as data of a crack in a case where the PMP data and the MIEC data conform to characteristics of a crack defect signal; and determine characteristic data of the crack based on the MIEC data. The PMP data and MIEC data of the inner surface of the pipe are acquired by a probe, which can detect crack defects in gas pipes under high-speed movement, thus improving the efficiency and stability of dynamic crack detection.

Abstract: In an example method for detecting indole, an indole producing bacterium, or an indole producing chemical, a polymeric detection tool is exposed to a sample and the polymeric detection tool is monitored for a red color change. The polymeric detection tool includes an acidic and oxygen soluble polymer and a nitrosation agent impregnated in walls of the acidic and oxygen soluble polymer. This example method can be used for detecting an indole producing bacterium in a body fluid sample.