Abstract: A control method and apparatus for displaying multimedia content, an electronic device, and a medium. The method includes: displaying a first-type multimedia content on a first content display layer of a first-type multimedia content display interface, the first-type multimedia content display interface including: a first user interaction layer and the first content display layer, the first user interaction layer being superimposed and displayed on the first content display layer; and receiving a first swiping operation inputted by a user on the user interaction layer, and exiting the first-type multimedia content display interface. That is, a swiping operation triggers to exit the first-type multimedia content display interface, as the swiping operation is significantly different from a click operation, the user is provided with a multimedia content display control method that is more consistent with the user's operation habit, improving the user experience.

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: Distributed system resources may be managed by applying user created policies to the resources. To ensure that valid policies are applied, remote validation for the policies may be implemented. A validation event for a policy may be detected. A remote validation agent may be identified for the policy and a validation request sent to the remote validation agent that includes information for validating the policy. The remote validation agent may return a validation result for the policy. If valid, a policy action that triggered the remote validation event for the policy may be allowed. If invalid, the policy action that triggered the remote validation event for the policy may be denied.

Abstract: Multiple edits to a hierarchical data structure may be atomically applied. A request to perform modifications with respect to a portion or the entire hierarchical data structure may be received. A copy of the requested portion of the hierarchical data structure may be created separate from the hierarchical data structure. The portion of the hierarchical data structure may remain available for read access. Modifications may be applied to the copy of the portion of the hierarchical data structure. In response to a request to commit the modifications to the portion of the hierarchical data structure, the copy of the portion of the hierarchical data structure may atomically replace the portion of the hierarchical data structure.

Abstract: Resource data objects describing resources in a system may be maintained in multiple different hierarchies for applying policies to manage the resources. Lookup requests may access the different hierarchies to determine which policies are applicable to a given resource based on the policies identified in each of the hierarchies. Modifications to hierarchies may be performed in isolation so that the application of policies in other hierarchies is unchanged by modifications to a different hierarchy. Access restrictions may be enforced with respect to hierarchies so that different users may be permitted access to different hierarchies for system resource management.

Abstract: A connector assembly includes a connector and a fixing device. The connector has a housing, a ferrule mounted in the housing, and a rear body inserted into a rear end of the housing. The fixing device is connected to the rear body of the connector. The fixing device has a fixture formed in a single integrated piece. The fixture includes a connection part located at a front end of the fixture and configured to be connected to the rear body of the connector and a flexible protection part disposed adjacent to the connection part and configured to protect a cable passing therethrough.

Abstract: This application provides a mode division multiplexer, which includes a metasurface of an electromagnetic resonance unit that has a plurality of sub-wavelengths disposed in an array. The electromagnetic resonance unit is configured to perform phase modulation on a beam transmitted to the electromagnetic resonance unit, to convert a spatial mode order of the beam. Because a size of the electromagnetic resonance unit is a sub-wavelength, and a pixel size of the electromagnetic resonance unit is smaller than a pixel size of a spatial light modulator in the prior art, crosstalk between different spatial modes after phase modulation performed by the mode division multiplexer is comparatively low. In this way, the crosstalk is comparatively small when beams in different spatial modes are multiplexed into a few-mode/multi-mode fiber. The mode division multiplexer in this application can implement polarization-independent phase modulation.

Abstract: An electrical connector adapted to be electrically connected with a cable includes a fixing assembly, an insulation body, and a conductive terminal overmolded in the insulation body. The fixing assembly includes a receiving portion extending in an axial direction of the electrical connector. An end of the cable is inserted into the receiving portion from a first end of the receiving portion. The insulation body extends from a second end of the receiving portion. The conductive terminal includes a mounting portion mounted in the insulation body and a contact portion extending out of the insulation body. The mounting portion is electrically connected with a conductor of the cable by a bolt member.

Abstract: A method for extracting polyol from a fermentation process is disclosed. The preparing method includes rectifying and purifying PDO (1,3-propanediol) from a polyol fermentation broth after concentration to form a steam condensate, wherein the concentration is a evaporative dehydration; and filtering the steam condensate through a reverse osmosis membrane to form a concentrated solution, wherein the retentate of the reverse osmosis flows back to the evaporative dehydration, and the penetrant of the reverse osmosis can be reused as a fermentation ingredient, as cleaning water or for sewage treatment; and the water content of the concentrated solution after the evaporative dehydration is 5-25 wt %; and the yield of PDO is ?99.5%. The preparing method meets the requirements of water resources recycling, reduces the production loss of PDO and BDO (2,3-butanediol) during the concentration, and greatly cuts down on the amount of wastewater.

Abstract: A method for extracting polyol from a fermentation process is disclosed. The preparing method includes rectifying and purifying PDO (1,3-propanediol) from a polyol fermentation broth after concentration to form a steam condensate, wherein the concentration is a evaporative dehydration; and filtering the steam condensate through a reverse osmosis membrane to form a concentrated solution, wherein the retentate of the reverse osmosis flows back to the evaporative dehydration, and the penetrant of the reverse osmosis can be reused as a fermentation ingredient, as cleaning water or for sewage treatment; and the water content of the concentrated solution after the evaporative dehydration is 5-25 wt %; and the yield of PDO is 99.5%. The preparing method meets the requirements of water resources recycling, reduces the production loss of PDO and BDO (2,3-butanediol) during the concentration, and greatly cuts down on the amount of wastewater.

Abstract: A cable fixing apparatus adapted to be fixed to an end of a cable includes a first sleeve having a first thread portion at a first end of the first sleeve, a second sleeve having a bottom portion with a through hole at first end of the second sleeve, and a clamp mechanism disposed in the second sleeve between the first thread portion of the first sleeve and the bottom portion of the second sleeve. The cable is inserted into the second sleeve and the first sleeve through the through hole in an insertion direction. The second sleeve is threaded onto the first thread portion at a second end of the second sleeve. The clamp mechanism clamps the cable in response to an engagement of the second end of the second sleeve to the first thread portion to prevent the cable from moving in the first sleeve and the second sleeve.

Abstract: A connector assembly includes a connector and a fixing device. The connector has a housing, a ferrule mounted in the housing, and a rear body inserted into a rear end of the housing. The fixing device is connected to the rear body of the connector. The fixing device has a fixture formed in a single integrated piece. The fixture includes a connection part located at a front end of the fixture and configured to be connected to the rear body of the connector and a flexible protection part disposed adjacent to the connection part and configured to protect a cable passing therethrough.

Abstract: A near-eye display (NED) has an orientation detection device and a display block. The orientation detection device collects orientation data that describe an orientation of the NED. The display block has a display assembly, a focusing assembly, and a controller. The controller determines an orientation vector of the NED based in part on the orientation data and computes an angular difference between the orientation vector of the NED and a gravity vector. After comparing the angular difference to a threshold value, the controller generates multifocal instructions that adjusts the optical element to display an augmented scene at the selected image plane corresponding to the multifocal instructions.

Abstract: An electrical connector adapted to be electrically connected with a cable includes a fixing assembly, an insulation body, and a conductive terminal overmolded in the insulation body. The fixing assembly includes a receiving portion extending in an axial direction of the electrical connector. An end of the cable is inserted into the receiving portion from a first end of the receiving portion. The insulation body extends from a second end of the receiving portion. The conductive terminal includes a mounting portion mounted in the insulation body and a contact portion extending out of the insulation body. The mounting portion is electrically connected with a conductor of the cable by a bolt member.

Abstract: A cable fixing apparatus adapted to be fixed to an end of a cable includes a first sleeve having a first thread portion at a first end of the first sleeve, a second sleeve having a bottom portion with a through hole at first end of the second sleeve, and a clamp mechanism disposed in the second sleeve between the first thread portion of the first sleeve and the bottom portion of the second sleeve. The cable is inserted into the second sleeve and the first sleeve through the through hole in an insertion direction. The second sleeve is threaded onto the first thread portion at a second end of the second sleeve. The clamp mechanism clamps the cable in response to an engagement of the second end of the second sleeve to the first thread portion to prevent the cable from moving in the first sleeve and the second sleeve.

Abstract: Multiple edits to a hierarchical data structure may be atomically applied. A request to perform modifications with respect to a portion or the entire hierarchical data structure may be received. A copy of the requested portion of the hierarchical data structure may be created separate from the hierarchical data structure. The portion of the hierarchical data structure may remain available for read access. Modifications may be applied to the copy of the portion of the hierarchical data structure.

Abstract: An optical indicating device, a vehicle lamp including the optical indicating device, and a motor vehicle are provided. The optical indicating device includes: at least one light source emitting a light beam; and a patterning device arranged to form an indicating pattern when a light beam emitted from the light source is transmitted through the patterning device; the patterning device includes an patterning unit arranged to pattern the light beam, and a plurality of light deflecting portions arranged adjacent to each other are formed on a side of the patterning unit facing towards the light source or facing away from the light source.

Abstract: A light distribution element for a light emitting device, including a plurality of first light deflecting portions and a plurality of second light deflecting portions, wherein a pattern formed by the plurality of first light deflecting portions is superposed with a pattern formed by the plurality of second light deflecting portions to form a final display pattern. The present invention also provides a light emitting device including the light distribution element. According to the light distribution element and the light emitting device provided by the present invention, it is possible to generate a personalized, three-dimensional, dynamic lighting effect.

Abstract: Resource data objects describing resources in a system may be maintained in multiple different hierarchies for applying policies to manage the resources. Lookup requests may access the different hierarchies to determine which policies are applicable to a given resource based on the policies identified in each of the hierarchies. Modifications to hierarchies may be performed in isolation so that the application of policies in other hierarchies is unchanged by modifications to a different hierarchy. Access restrictions may be enforced with respect to hierarchies so that different users may be permitted access to different hierarchies for system resource management.

Abstract: The present disclosure provides a light guide assembly. The assembly includes: a light guide body part having a light exit face and a light distribution face; a first light incidence part having a first end and a second end on which at least one first light guiding unit is provided, the first light guiding unit being arranged to receive a first light and direct the first light into the light guide body part; a second light incidence part having a first end and a second end on which at least one second light guiding unit is provided, the second light guiding unit being arranged to receive a second light and direct the second light into the light guide body part, wherein the light distribution face is arranged to reflect the first/second light directed into the light guide body part towards the light exit face.