Abstract: Disclosed in embodiments of the present invention are a control method and device for an alternating-current and direct-current conversion circuit, and a computer storage medium. The alternating-current and direct-current conversion circuit comprises a first commutation unit, a second commutation unit, and a coupling unit. By obtaining voltage information and current information of the alternating-current and direct-current conversion circuit, a controllable device of the first commutation unit can be controlled to be turned on in delay or turned off in advance; and the second commutation unit is controlled to work in a controllable rectification state or a controllable inversion state or an uncontrollable rectification state.

Abstract: The invention includes a method including the steps of obtaining a plurality of images, each of the images in the plurality having at least one corresponding region, generating a merged image, the merged image also having the corresponding region. The step of generating includes selecting an image source from the plurality of images to source image data for the corresponding region in the merged image by comparing attributes of the corresponding regions of the plurality of images to identify the image source having preferred attributes.

Abstract: A method, computer system, and a computer program product for filtering at least one element. The present invention may include receiving a user gesture. The present invention may also include determining a requested action based on the received user gesture. The present invention may then include filtering at least one element associated with a webpage based on the determined requested action. The present invention may further include rendering a modified webpage based on the filtered at least one element.

Abstract: A process for manufacturing an iron-based alloy comprising forming targeted fine oxide and/or carbide dispersoids in a melt, and sequentially precipitating transition-metal nitrides on the dispersoids for heterogeneous nucleation of equiaxed grains. An iron-based cast alloy having a highly equiaxed fine grain structure.

Abstract: In one embodiment, a computing system may access a social graph comprising a plurality of nodes and a plurality of edges connecting the nodes, each of the edges between two of the nodes representing a single degree of separation between them, where the nodes comprise a first node corresponding to a first user of an online social network, and a plurality of second nodes that each correspond to a concept or a second user associated with the online social network. The computing system may receive a search query from the first user. The computing system may generate one or more search results corresponding to the search query, where each search result corresponds to a node of the plurality of second nodes. The computing system may score each search result based on a proximity coefficient between the first node and the node corresponding to the search result.

Abstract: In one embodiment, a computing system may access a plurality of content items shared by a plurality of first users on an online social network. The computing system may calculate a content score for each of content items shared by a first user on the online social network, where each content score is based at least in part on a proximity coefficient between a second user and the first user that shared the content item, where the proximity coefficient is a weighted combination of multiple subpart proximity coefficients over a period of time. The computing system may send, to a client device of the second user for display, one or more of the content items based at least in part on the calculated content scores.

Abstract: The invention includes a method including the steps of obtaining a plurality of images, each of the images in the plurality having at least one corresponding region, generating a merged image, the merged image also having the corresponding region. The step of generating includes selecting an image source from the plurality of images to source image data for the corresponding region in the merged image by comparing attributes of the corresponding regions of the plurality of images to identify the image source having preferred attributes.

Abstract: A method, computer system, and a computer program product for filtering at least one element. The present invention may include receiving a user gesture. The present invention may also include determining a requested action based on the received user gesture. The present invention may then include filtering at least one element associated with a webpage based on the determined requested action. The present invention may further include rendering a modified webpage based on the filtered at least one element.

Abstract: A method, computer system, and a computer program product for filtering at least one element. The present invention may include receiving a user gesture. The present invention may also include determining a requested action based on the received user gesture. The present invention may then include filtering at least one element associated with a webpage based on the determined requested action. The present invention may further include rendering a modified webpage based on the filtered at least one element.

Abstract: In one embodiment, a computing system may access a plurality of content items shared by a plurality of first users on an online social network. The computing system may calculate a content score for each of content items shared by a first user on the online social network, where each content score is based at least in part on a proximity coefficient between a second user and the first user that shared the content item, where the proximity coefficient is a weighted combination of multiple subpart proximity coefficients over a period of time. The computing system may send, to a client device of the second user for display, one or more of the content items based at least in part on the calculated content scores.

Abstract: In one embodiment, a computing system may access an image associated with an online social network, where the image is associated with a first user and portrays at least a first person. The computing system may generate one or more tag suggestions for the first person portrayed in the image. Each tag suggestion corresponds to a second user from a set of second users associated with the online social network. The one or more tag suggestions may be generated based at least in part on a proximity coefficient indicating a measure of geographical proximity of the first user with respect to each second users, where the proximity coefficient is based on a location history of the first user and a location history of each second user.

Abstract: The invention includes a method including the steps of obtaining a plurality of images, each of the images in the plurality having at least one corresponding region, generating a merged image, the merged image also having the corresponding region. The step of generating includes selecting an image source from the plurality of images to source image data for the corresponding region in the merged image by comparing attributes of the corresponding regions of the plurality of images to identify the image source having preferred attributes.

Abstract: Disclosed is a method and device for switching video streams. The method comprises: acquiring video streams of a video in response to receiving a playback request for the video sent by a terminal, the video streams comprising: a video stream with a first group of pictures (GOP) frame number and a video stream with a second GOP frame number; sending the video stream with the first GOP frame number to the terminal, searching for a third key frame in the video stream with the first GOP frame number, and extracting a decoding time stamp (DTS) of the third key frame; searching the video stream with the second GOP frame number for a frame having an identical DTS; determining whether the frame is a fourth key frame in response to finding the frame having the identical DTS; and sending the video stream with the second GOP frame number to the terminal.

Abstract: In one embodiment, a computing system may access an image associated with an online social network, where the image portrays at least a first person. The computing system may determine, for each user in a first set of users, a facial recognition score with respect to the first person portrayed in the image, where the facial recognition score is based on a facial representation associated with each user of the first set of users, where the facial representation associated with each user is compared with the image, and a comparison of a location history of each user with a location associated with the image. The computing system may generate one or more tag suggestions for the first person portrayed in the image based on the determined facial recognition scores.

Abstract: A process for manufacturing an iron-based alloy comprising forming targeted fine oxide and/or carbide dispersoids in a melt, and sequentially precipitating transition-metal nitrides on the dispersoids for heterogeneous nucleation of equiaxed grains. An iron-based cast alloy having a highly equiaxed fine grain structure.

Abstract: In one embodiment, a computing system may access a social graph of an online social network comprising a plurality of nodes and a plurality of edges connecting the nodes, where each of the edges between two of the nodes represent a single degree of separation between them, and the nodes comprise a first node corresponding to a first user of the online social network, and a plurality of second nodes corresponding to a plurality of second users associated with the online social network. The computing system may calculate a content score for each of one or more content items shared by the second users on the online social network, where each content score is based at least in part on a proximity coefficient between the first user and the content item. The computing system may send one or more of the scored content items for display to the first user.

Abstract: In one embodiment, a mobile-client system may store location history data during a first time period in its memory, where the location history data comprises a plurality of geographic locations during the first time period and one or more time stamps corresponding to each of the geographic locations. The mobile-client system may detect whether it has a current network connection to an online social network. The mobile-client system may determine whether to transmit the stored location history data to a location server of the online social network, where if it is currently connected to the online social network, then the mobile-client system transmits the location history data to a location server using the current network connection, and if it is not currently connected to the online social network, then the mobile-client system refrains from transmitting the location history data to the location server.

Abstract: Disclosed is a method and device for switching video streams. The method comprises: acquiring video streams of a video in response to receiving a playback request for the video sent by a terminal, the video streams comprising: a video stream with a first group of pictures (GOP) frame number and a video stream with a second GOP frame number; sending the video stream with the first GOP frame number to the terminal, searching for a third key frame in the video stream with the first GOP frame number, and extracting a decoding time stamp (DTS) of the third key frame; searching the video stream with the second GOP frame number for a frame having an identical DTS; determining whether the frame is a fourth key frame in response to finding the frame having the identical DTS; and sending the video stream with the second GOP frame number to the terminal.

Abstract: Disclosed is a composition comprising: i) HBsAg, a fragment thereof, a variant thereof, or the mixture of at least two of them, ii) HBcAg1-X, a fragment thereof, a variant of the antigen or the antigen fragment, or the mixture of at least two of them, wherein X is an integer of from 149 to 183, iii) CpG-ODN, 21 bases long, which is a phosphorothioate oligonucleotide and includes two or more copies of 5?-NTCGTT-3? motifs. The use of the composition in the treatment of HBV-infection and HBV-induced diseases, and the therapy methods of HBV-infection and HBV-induced diseases are also disclosed.

Abstract: Examples of the present disclosure provide a contact matching method. The method includes: obtaining a first interest label corresponding to a contact waiting for match and a second interest label corresponding to respective contact other than the contact waiting for match in a matching interface displayed on the client device; comparing the first interest label and the second interest label to obtain at least one contact matching with the contact waiting for match; and displaying a first contact identifier corresponding to the contact waiting for match and a second contact identifier corresponding to respective matching contact or a second contact identifier corresponding to respective matching contact in the matching interface according to a predefined first displaying manner. Examples of the present disclosure also provide a contact matching apparatus. The solution of the present disclosure improves contact matching efficiency and accuracy.