Abstract: A method for preparing low-background cement includes: uniformly mixing a seed crystal of cement, C4AF whiskers, and high-magnesium raw material to yield a first mixture, calcining the first mixture at 1400-1500° C., to yield a low-background clinker, the first mixture including 1.0-5.0 wt. % of the seed crystal of cement, 1.0-5.0 wt. % of the C4AF whiskers, and the balance is the high-magnesium raw material; and grinding a second mixture of the low-background clinker and gypsum, to yield low-background cement. The seed crystal of cement is a high-magnesium and low hydration heat clinker, has a specific activity of Ra-226 radioactive nuclides within 50 Bq/kg, and the MgO content of the clinker is between 4.0 wt. % and 5.0 wt. %, with 50 wt. %?C3S?55.0 wt. %; and the high-magnesium raw material has a MgO content between 2.5 wt. % and 3.0 wt. %.

Abstract: A method for preparing Portland cement includes: respectively weighing iron slag, copper slag, vanadium slag, and nickel slag and grinding, to yield prefabricated iron slag, prefabricated copper slag, prefabricated vanadium slag, and prefabricated nickel slag; weighing mica and kaolinite, mixing, and grinding to obtain aluminous raw materials; evenly mixing the prefabricated iron slag and the aluminous raw materials, and calcining, to yield an iron-aluminum eutectic mineral; weighing the marble, fluorite, dolomite, and quartz, evenly mixing the marble, fluorite, dolomite, and quartz with the prefabricated copper slag, prefabricated vanadium slag, and prefabricated nickel slag to yield a first mixture; grinding the iron-aluminum eutectic mineral to yield powders, and calcining a second mixture of the first mixture and the powders, to yield the cement clinker; and cooling the cement clinker, and grinding a third mixture of the cooled cement clinker and the gypsum, to yield the Portland cement.

Abstract: A method for preparing Portland cement includes: respectively weighing iron slag, copper slag, vanadium slag, and nickel slag and grinding, to yield prefabricated iron slag, prefabricated copper slag, prefabricated vanadium slag, and prefabricated nickel slag; weighing mica and kaolinite, mixing, and grinding to obtain aluminous raw materials; evenly mixing the prefabricated iron slag and the aluminous raw materials, and calcining, to yield an iron-aluminum eutectic mineral; weighing the marble, fluorite, dolomite, and quartz, evenly mixing the marble, fluorite, dolomite, and quartz with the prefabricated copper slag, prefabricated vanadium slag, and prefabricated nickel slag to yield a first mixture; grinding the iron-aluminum eutectic mineral to yield powders, and calcining a second mixture of the first mixture and the powders, to yield the cement clinker; and cooling the cement clinker, and grinding a third mixture of the cooled cement clinker and the gypsum, to yield the Portland cement.

Abstract: A method for preparing low-background cement includes: uniformly mixing a seed crystal of cement, C4AF whiskers, and high-magnesium raw material to yield a first mixture, calcining the first mixture at 1400-1500° C., to yield a low-background clinker, the first mixture including 1.0-5.0 wt. % of the seed crystal of cement, 1.0-5.0 wt. % of the C4AF whiskers, and the balance is the high-magnesium raw material; and grinding a second mixture of the low-background clinker and gypsum, to yield low-background cement. The seed crystal of cement is a high-magnesium and low hydration heat clinker, has a specific activity of Ra-226 radioactive nuclides within 50 Bq/kg, and the MgO content of the clinker is between 4.0 wt. % and 5.0 wt. %, with 50 wt. % <C3S <55.0 wt. %; and the high-magnesium raw material has a MgO content between 2.5 wt. % and 3.0 wt. %.

Abstract: Transient computing clusters can be temporarily provisioned in cloud-based infrastructure to run data processing tasks. Such tasks may be run by services operating in the clusters that consume and produce data including operational metadata. Techniques are introduced for tracking data lineage across multiple clusters, including transient computing clusters, based on the operational metadata. In some embodiments, operational metadata is extracted from the transient computing clusters and aggregated at a metadata system for analysis. Based on the analysis of the metadata, operations can be summarized at a cluster level even if the transient computing cluster no longer exists. Further relationships between workflows, such as dependencies or redundancies, can be identified and utilized to optimize the provisioning of computing clusters and tasks performed by the computing clusters.

Abstract: Transient computing clusters can be temporarily provisioned in cloud-based infrastructure to run data processing tasks. Such tasks may be run by services operating in the clusters that consume and produce data including operational metadata. Techniques are introduced for tracking data lineage across multiple clusters, including transient computing clusters, based on the operational metadata. In some embodiments, operational metadata is extracted from the transient computing clusters and aggregated at a metadata system for analysis. Based on the analysis of the metadata, operations can be summarized at a cluster level even if the transient computing cluster no longer exists. Further relationships between workflows, such as dependencies or redundancies, can be identified and utilized to optimize the provisioning of computing clusters and tasks performed by the computing clusters.

Abstract: Transient computing clusters can be temporarily provisioned in cloud-based infrastructure to run data processing tasks. Such tasks may be run by services operating in the clusters that consume and produce data including operational metadata. Techniques are introduced for tracking data lineage across multiple clusters, including transient computing clusters, based on the operational metadata. In some embodiments, operational metadata is extracted from the transient computing clusters and aggregated at a metadata system for analysis. Based on the analysis of the metadata, operations can be summarized at a cluster level even if the transient computing cluster no longer exists. Further relationships between workflows, such as dependencies or redundancies, can be identified and utilized to optimize the provisioning of computing clusters and tasks performed by the computing clusters.

Abstract: The invention provides an implantable vagal nerve stimulator having a “passive” generating power source that harvests the stomach's movements to transform kinetic energy to electrical charge without the need for a battery. In this regard, the invention is self-powering and is automatically timed to stomach peristalsis. While sporadic stimulation to the vagal nerve would seem too infrequent to cause weight loss effects, electrical stimulation delivered at the optimal time (e.g., during food consumption) has been found to optimize the effects of vagal nerve stimulation, giving the user's brain a “full stomach” signal before the user over-consumes food.

Abstract: Embodiments of a method, device, and terminal apparatus for load balancing and a storage medium are provided. The method can include acquiring a service traffic of a service request received by at least one load balancer configured for an equipment room of a plurality of equipment rooms, acquiring a dispatching result of the load balancer, according to the service traffic of the service request and a service capacity of the equipment room, and pushing the dispatching result to a distribution proportion configuration center configured to send the dispatching result to the load balancer, where the dispatching result is used to indicate the load balancer to distribute the service request to one or more equipment rooms.

Abstract: The present disclosure relates to systems, methods, and non-transitory computer readable media that implement a peer-to-peer social media recommendation system. For example, the peer-to-peer recommendation process can involve providing social media accounts to a recommender to recommend to a recommendee. For example, based on determining triggering criteria, the disclosed systems can determine social media accounts for a recommender to recommend to a recommendee based on recommender features and recommendee features. In addition, the disclosed systems can provide a recommender user interface for display on a recommender device that includes a listing of social media accounts together with selectable options to recommend the social media accounts to a recommendee. The disclosed systems can further provide a recommendee user interface to a recommendee device to display social media accounts recommended by the recommender together with selectable options to follow the social media accounts.

Abstract: Transient computing clusters can be temporarily provisioned in cloud-based infrastructure to run data processing tasks. Such tasks may be run by services operating in the clusters that consume and produce data including operational metadata. Techniques are introduced for tracking data lineage across multiple clusters, including transient computing clusters, based on the operational metadata. In some embodiments, operational metadata is extracted from the transient computing clusters and aggregated at a metadata system for analysis. Based on the analysis of the metadata, operations can be summarized at a cluster level even if the transient computing cluster no longer exists. Further relationships between workflows, such as dependencies or redundancies, can be identified and utilized to optimize the provisioning of computing clusters and tasks performed by the computing clusters.

Abstract: Transient computing clusters can be temporarily provisioned in cloud-based infrastructure to run data processing tasks. Such tasks may be run by services operating in the clusters that consume and produce data including operational metadata. Techniques are introduced for tracking data lineage across multiple clusters, including transient computing clusters, based on the operational metadata. In some embodiments, operational metadata is extracted from the transient computing clusters and aggregated at a metadata system for analysis. Based on the analysis of the metadata, operations can be summarized at a cluster level even if the transient computing cluster no longer exists. Further relationships between workflows, such as dependencies or redundancies, can be identified and utilized to optimize the provisioning of computing clusters and tasks performed by the computing clusters.

Abstract: Disclosed are a method and an apparatus for setting an access privilege. The method includes: acquiring Internet Protocol (IP) addresses having a access frequency to a target application greater than or equal to a frequency threshold, selecting IP addresses accessing more than one applications per time unit from the IP addresses as to-be-processed IP addresses to generate a to-be-processed IP address set; acquiring access information, related to an access of a target application, of the to-be-processed IP address; acquiring a plurality of target IP addresses in the to-be-processed IP address set based on the access information, determining a probability of access through a gateway by a terminal pointed by each target IP address; and selecting a preset proportion or a preset number of target IP addresses from the plurality of target IP addresses in a descending order of the probability to set the access privilege.

Abstract: The invention provides an implantable vagal nerve stimulator having a “passive” generating power source that harvests the stomach's movements to transform kinetic energy to electrical charge without the need for a battery. In this regard, the invention is self-powering and is automatically timed to stomach peristalsis. While sporadic stimulation to the vagal nerve would seem too infrequent to cause weight loss effects, electrical stimulation delivered at the optimal time (e.g., during food consumption) has been found to optimize the effects of vagal nerve stimulation, giving the user's brain a “full stomach” signal before the user over-consumes food.

Abstract: Embodiments of a method, device, and terminal apparatus for load balancing and a storage medium are provided. The method can include acquiring a service traffic of a service request received by at least one load balancer configured for an equipment room of a plurality of equipment rooms, acquiring a dispatching result of the load balancer, according to the service traffic of the service request and a service capacity of the equipment room, and pushing the dispatching result to a distribution proportion configuration center configured to send the dispatching result to the load balancer, where the dispatching result is used to indicate the load balancer to distribute the service request to one or more equipment rooms.

Abstract: A method and apparatus for controlling data transmission includes: obtaining an amount of data, the data requested by a requesting server, an instructed deadline, and candidate source servers storing the requested data; obtaining, based on the amount of data, a minimum bandwidth required for transmitting the requested data before the deadline as a required bandwidth corresponding to the requested data; and selecting one of the candidate source servers as a source server for transmitting the requested data, based on the required bandwidth, bandwidth resources of the candidate source servers and the requesting server, and remaining bandwidth of links between the candidate source servers and the requesting server. This implementation implements the selection of the most appropriate source server from the holistic perspective, ensures that data transmission can be completed before the deadline, and effectively utilize the link bandwidth.

Abstract: Transient computing clusters can be temporarily provisioned in cloud-based infrastructure to run data processing tasks. Such tasks may be run by services operating in the clusters that consume and produce data including operational metadata. Techniques are introduced for tracking data lineage across multiple clusters, including transient computing clusters, based on the operational metadata. In some embodiments, operational metadata is extracted from the transient computing clusters and aggregated at a metadata system for analysis. Based on the analysis of the metadata, operations can be summarized at a cluster level even if the transient computing cluster no longer exists. Further relationships between workflows, such as dependencies or redundancies, can be identified and utilized to optimize the provisioning of computing clusters and tasks performed by the computing clusters.

Abstract: The present application discloses a method and an apparatus for setting an access privilege, a server and a storage medium, comprising: acquiring Internet Protocol (IP) addresses having a access frequency to a target application greater than or equal to a frequency threshold, selecting IP addresses accessing a plurality of applications per time unit from the IP addresses as to-be-processed IP addresses to generate a to-be-processed IP address set; acquiring access information, related to an access of a target application, of the to-be-processed IP address; acquiring a plurality of target IP addresses in the to-be-processed IP address set based on the access information, determining a probability of access through a gateway by a terminal pointed by each target IP address; selecting a preset proportion or a preset number of target IP addresses from the plurality of target IP addresses in a descending order of the probability to set the access privilege.

Abstract: Technologies are generally described for methods and systems effective to generate an alert in a data center. In some examples, a device may detect an execution of a virtual machine in the data center. The device may also analyze traffic data at a port that may be in the data center. The traffic data may be associated with a communication from the virtual machine to a destination address through the port. The device may also compare the destination address with a data center address of the data center. The device may also generate the alert based on the comparison.

Abstract: Technologies are generally described for systems, devices and methods effective to compare network element instructions and network control instructions. In some examples, first instructions may be identified and may be related to flow of network traffic. The first instructions may be stored in a data structure of a memory of a network element. The network element may generate a first network instruction signature based on the first instructions. A network controller device may identify second instructions. In some examples, the second instructions may be related to control of the network traffic, and may be stored in a memory of the network controller device. The network controller device may generate a second network instruction signature based on the second instructions. The network controller device may compare the first network instruction signature to the second network instruction signature to produce a comparison between the first instructions and the second instructions.