Abstract: Dynamic partitioning of a search space of queries is implemented for flexible, heuristic database querying. Search space partitioning refers to dividing the search space for a submitted query into smaller parts by augmenting the queries to append thereto an additional predicate comprising a dynamic partition key and a value(s) selected based on heuristics (e.g., recency and/or relevancy of the value(s)). A plurality of candidate augmentations of the query and corresponding query plans are generated and evaluated based on additional heuristics to determine which can be executed to yield the best results in terms of result quality and latency. This query plan is selected and executed for retrieval of results that satisfy the query, with pagination utilized for presentation of the results. The procedure of generating candidate query plans, selecting one of the candidates for execution, and paginating results is repeated until a search termination criterion is satisfied.

Abstract: A collision detection method, an electronic device, and a storage medium are provided, which relate to a field of artificial intelligence technology, and in particular to fields of intelligent transportation and autonomous driving technologies. The method includes: determining a predicted travel range of a target object based on a planned travel trajectory of the target object and a historical travel trajectory of the target object; determining, in response to a target obstacle being detected, a predicted travel range of the target obstacle based on a current travel state of the target obstacle; and determining whether the target object has a risk of colliding with the target obstacle, based on the predicted travel range of the target object and the predicted travel range of the target obstacle.

Abstract: There is provided an obstacle detection method, an electronic device and a storage medium, which relates to the field of computer technologies, and particularly to the fields of autonomous driving technologies, intelligent transportation technologies, Internet of Things technologies, deep learning technologies, or the like. The method for detecting obstacle includes: detecting an obstacle in a vehicle traveling process using plural obstacle detection manners to obtain plural initial detection results of the obstacle, the plural initial detection results corresponding to the plural obstacle detection manners; fusing the plural initial detection results to obtain a fusion result; and obtaining a final detection result of the obstacle based on the fusion result.

Abstract: Embodiments of the present disclosure provide a semiconductor processing apparatus and a magnetron mechanism thereof. The magnetron mechanism is applied to the semiconductor processing apparatus and includes a backplane, an outer magnetic pole, and an inner magnetic pole. The outer magnetic pole is arranged on a bottom surface of the backplane and encloses to form accommodation space. The inner magnetic pole is arranged on the bottom surface of the backplane and located in the accommodation space. The inner magnetic pole can move to change corrosion areas of the target material. The distance between the inner magnetic pole and the outer magnetic pole is always greater than a predetermined distance during the movement. With the semiconductor processing apparatus and the magnetron mechanism thereof of embodiments of the present disclosure can achieve the full target corrosion in a sputtering environment in a high-pressure state.

Abstract: A cloud resource join query for join operations across cloud resources is parsed to extract join rules and queries to each cloud resource in the cloud resource join query. Results from the individual cloud queries are dynamically indexed based on pairs of cloud resources indicated in the join rules. A search engine applies first order predicates in the join rules using the dynamic indexes to generate pairwise join results corresponding to the query. A result for the cloud resource join query comprises the pairwise join results after merging.

Abstract: A non-invasive device for simultaneous testing dynamic characteristics and injection law of a gas needle valve and a method therefor are disclosed. The device includes a tested injector, a pressure sensor, a temperature sensor, an eddy current displacement sensor, a constant volume sealed container, and a controller. A nozzle of the tested injector is inserted into a constant volume cavity of the constant volume sealed container; the eddy current displacement sensor is arranged at a lower part of a gas needle valve of the tested injector; the pressure sensor and the temperature sensor are inserted into the constant volume cavity; and the controller is configured to receive displacement data, pressure data, and temperature data, and calculate the injection law of the tested injector based on the pressure data and the temperature data, achieving multi parameters testing of the needle valve lift and injection law in the same time and space.

Abstract: The present invention relates to a marshalled train management method, apparatus, device and medium, the method including: S1: identifying, by a CC, train formation; S2: identifying, by a trackside ZC, coupling marshalling information; S3: when the coupling marshalling information or the train formation is valid, calculating, by the trackside ZC, a valid movement authorization for the marshalled train; S4: checking, by the CC, a currently applied marshalled train parameter state thereof; if the coupling marshalling information or the train formation is valid, setting the formed train parameter state to be available; and if the state is available and the valid movement authorization is received, safely controlling the train to run; S5: verifying, by the CC, an availability state of the marshalled train parameter state in real time according to the coupling marshalling information or the train formation; and S6: when the coupling state of the marshalled train changes during online coupling or dis-marshalling, r

Abstract: The disclosure relates to a method for improving the alkali resistance and oxidation resistance of a benzothiazole disperse dye, and belongs to the field of disperse dyes. In the disclosure, 4 kinds of diazo components and 8 kinds of coupling components are used in designing and synthesizing 28 thiazole heterocyclic azo disperse dyes, and the alkali resistance and oxidation resistance of the disperse dyes are improved. Structure confirmation is performed on the synthetic disperse dyes, and the alkali resistance, oxidation resistance and other dyeing properties of the disperse dyes are tested.

Abstract: A switched reluctance electrical motor comprises a rotor having a substantially circular cylindrical envelope with a diameter in a range of 50 mm to 300 mm and a length in the range of 20 mm to 250 mm. The rotor comprises a plurality of radially extending rotor teeth. A switched reluctance electrical motor further comprises a stator surrounding the rotor and comprising a plurality of stator poles. The rotor teeth are circumferentially-spaced apart from each other to define slots between adjacent teeth that, expressed in normalised angular and radial coordinates, have a cross-sectional profile transverse to an axis of rotation of the rotor, lying within a well-defined polygonal region.

Abstract: The present invention provides pharmaceutical compositions, for storage and administration, comprising an anti-human B7-H3 (“hB7-H3”) antibody (“enoblituzumab”) and buffering agents. The invention provides containers and kits comprising such pharmaceutical compositions. The invention further provides the use of such pharmaceutical compositions, containers, and kits containing enoblituzumab for the treatment of a cancer, and in certain aspects, treatment of a cancer expressing B7-H3.

Abstract: The present disclosure provides a method of training a deep learning model for text detection and a text detection method, which relates to the technical field of artificial intelligence, and in particular, to the technical field of computer vision and deep learning and can be used in scenarios of OCR optical character recognition. A method of training a deep learning model for text detection is provided, in which a single character segmentation sub-network outputs a single character segmentation prediction result, a text line segmentation sub-network outputs a text line segmentation prediction result, the trained deep learning model can be used for detecting a text area; and, can at the same time achieve single character segmentation and text line segmentation, and thus is capable to perform text detection by combining two ways of text segmentation, which further improves the accuracy of text area detection.

Abstract: A device and a method for determining a microvibration effect on a millisecond-level space optical sensor are provided. The device includes: a light source, a star simulator, an air flotation vibration isolation platform, a suspension system/air flotation system, a zero stiffness system, a supporting system, a six-degree-of-freedom microvibration simulator, a signal driving apparatus, and a data acquisition and processing system. In the device for determining a microvibration effect on a space pointing measurement apparatus, a free boundary condition and a zero gravity environment are simulated by using a suspension system and a zero stiffness system. A light source and a star simulator simulate a star at infinity. A six-degree-of-freedom microvibration simulator simulates an on-orbit microvibration mechanical environment which is used as an input of a test. Extremely high-precision sensors collect system response data.

Abstract: A circuit board assembly and an electronic is provided. The circuit board assembly includes at least a frame plate and circuit boards. The frame plate includes a frame body, first soldering portions, and second soldering portions. The frame body has a middle accommodating hole, an inner wall facing the middle accommodating hole, and an outer wall facing away from the middle accommodating hole. The first soldering portions are provided in an intermediate region located on the frame body between the inner wall and the outer wall. At least one of the inner wall and the outer wall is provided with accommodating grooves. The accommodating grooves extend along a thickness direction of the frame plate. The second soldering portions are provided in the accommodating grooves and connected to the frame body. Two circuit boards are respectively provided on two opposite sides of the frame plate along the thickness direction. The circuit board includes pads.

Abstract: The present disclosure relates to gutta-percha containing carbon nanotubes and a preparation method therefor. The gutta-percha is prepared by mixing a raw material, prepared from the following components of eucommia ulmoide gum, zinc oxide and carbon nanotubes, and extruding the mixed raw material. An orientation factor of the carbon nanotubes in the gutta-percha is greater than 10.8. The preparation method comprises: mixing the components according to dosages, and extruding a mixed product to prepare the gutta-percha containing carbon nanotubes.

Abstract: Dynamic partitioning of a search space of queries is implemented for flexible, heuristic database querying. Search space partitioning refers to dividing the search space for a submitted query into smaller parts by augmenting the queries to append thereto an additional predicate comprising a dynamic partition key and a value(s) selected based on heuristics (e.g., recency and/or relevancy of the value(s)). A plurality of candidate augmentations of the query and corresponding query plans are generated and evaluated based on additional heuristics to determine which can be executed to yield the best results in terms of result quality and latency. This query plan is selected and executed for retrieval of results that satisfy the query, with pagination utilized for presentation of the results. The procedure of generating candidate query plans, selecting one of the candidates for execution, and paginating results is repeated until a search termination criterion is satisfied.

Abstract: A cloud resource join query for join operations across cloud resources is parsed to extract join rules and queries to each cloud resource in the cloud resource join query. Results from the individual cloud queries are dynamically indexed based on pairs of cloud resources indicated in the join rules. A search engine applies first order predicates in the join rules using the dynamic indexes to generate pairwise join results corresponding to the query. A result for the cloud resource join query comprises the pairwise join results after merging.

Abstract: A flyback converter control architecture is provided in which primary-only feedback techniques are used to ensure smooth startup and detection of fault conditions. During steady-state operation, secondary-side regulation is employed. In addition, current limits are monitored during steady-state operation using primary-only feedback techniques to obviate the need for a secondary-side current sense resistor.

Abstract: Dynamic partitioning of a search space of queries is implemented for flexible, heuristic database querying. Search space partitioning refers to dividing the search space for a submitted query into smaller parts by augmenting the queries to append thereto an additional predicate comprising a dynamic partition key and a value(s) selected based on heuristics (e.g., recency and/or relevancy of the value(s)). A plurality of candidate augmentations of the query and corresponding query plans are generated and evaluated based on additional heuristics to determine which can be executed to yield the best results in terms of result quality and latency. This query plan is selected and executed for retrieval of results that satisfy the query, with pagination utilized for presentation of the results. The procedure of generating candidate query plans, selecting one of the candidates for execution, and paginating results is repeated until a search termination criterion is satisfied.