Abstract: It discloses a sustained release grouting material, a preparation method and an application thereof; the sustained release grouting material comprises a water swelling core and a water-soluble sustained release coating, the water swelling core is composed of bentonite, SAP and xanthan gum, which is granulated by disc granulator relying on the cohesiveness of xanthan gum; the water-soluble sustained-release coating is prepared by mixing water-soluble starch, polyvinyl alcohol, poloxamer, lubricant and plasticizer with deionized water to obtain a film-forming solution, and the film-forming solution is coated on a coating machine; the invention uses a coating machine to coat a layer of slow-release coating on the surface of the water-absorbing expansion core, and adjusts the coating thickness by controlling the mass ratio of the coating film-forming liquid to the water-absorbing expansion core particles, so as to realize the controllable water absorption onset time of the expansion core.

Abstract: Example implementations relate to managing a resource of a network device. A resource of a network device may be assigned from a first tenant to a second tenant of the network device. Resources of the network device may include an assignment right, an access right, and a configuration right, By assigning the resource to the second tenant, the second tenant may be granted an access right to the assigned resource. Responsive to the assignment of the resource, an access right to the assigned resource may be removed from the first tenant such that the first tenant is isolated from the resource.

Abstract: The pharmacokinetic profile of the SGLT2 inhibitor bexagliflozin can be improved by formulating it as an extended release tablet. Compared with standard immediate-release dosage forms these tablets can permit a lower peak plasma concentration, Cmax, while maintaining plasma concentrations at therapeutic levels for a desired period. This can be used, for instance, to administer lower doses while still providing the same pharmacological effect.

Abstract: In implementations of the present disclosure, there is provided an approach for generating post-quantum pre-shared keys (PPKs). A first device sends a first request including first data generated by the first device to a second device, and the first device receives a first response including second data generated by the second device from the second device. The first device derives a PPK based on the first data, the second data and a seed PPK, and then sends a second request including an identification of the seed PPK to the second device to enable the second device to determine the derived PPK. Then, the first device receives a second response including a confirmation to the second request from the second device. Implementations of the present disclosure can improve the efficiency of the PPK configuration and release the administrator device from tedious manual work.

Abstract: In accordance with an embodiment, a method includes obtaining, by a transmitter, at least one to-be-transferred file, where the to-be-transferred file is a file to be sent to a receiver that establishes a near-field communication connection to the transmitter; sending, by the transmitter, the to-be-transferred file to the receiver; in response to a file transfer being interrupted, determining, by the transmitter, whether at least one file of the interrupted file transfer that has not completed transfer has changed; and in response to a determination that the at least one file of the interrupted file transfer that has not completed transfer is unchanged, resuming, by the transmitter, the transfer from a breakpoint at which the file transfer is interrupted

Abstract: Embodiments of the present disclosure relate to transmission of network access information for wireless devices. A method comprises transmitting an authorization request for the wireless device to a server upon receiving a presence announcement message from a wireless device. The method further comprises receiving an authorization response from the server including network access information and bootstrapping information of the wireless device. The method further comprise performing authentication with the wireless device based on the bootstrapping information. The method also comprises transmitting the network access information to the wireless device. The network access information includes a service set identifier (SSID) for a wireless local area network (WLAN) and credential information for the mobile device to access the WLAN.

Abstract: An example access point may comprise a processing resource; and a memory resource storing machine-readable instructions to cause the processing resource to: perform a management system search using a dynamic host configuration protocol (DHCP); determine, in view of the management system search, whether a management system discovered is a controller; and select one of a first role within a centralized local area network and a second role within a distributed local area network based on determining whether the management system is the controller, wherein the first role within the centralized local area network is selected when the management system is the controller.

Abstract: An electromagnetic stirring device and a method for a secondary cooling zone during slab continuous casting. The device has a main body, an opening adjustment assembly, and a secondary cooling assembly. The main body has a protection housing (3), a phase sequence control assembly, an iron core (4) and an electromagnetic coil (5) for carrying out variable-direction electromagnetic stirring on a molten steel by a three-phase current phase sequence transformation. The opening adjustment assembly has an air cylinder (7), a fixed base (8), a movable joint shaft (12) and a silicon steel sheet group insert (13) for adjusting online opening degree of the closed annular iron core by a movable joint structure. The secondary cooling assembly has a cooling water inlet (9) and a cooling water nozzle (10) for cooling the electromagnetic coil and spraying cooling water to a surface of a cast slab (1).

Abstract: Systems are methods are provided for implementing load balancing of IPsec security associations (SAs) SAs between different heterogeneous cores, for example in a multiple controller systems. The balancing of IPsec SAs are performed using software implementations of IPsec offloading and/or hardware implementations of IPsec offloading. By balancing the processing functions related to orchestration of IPsec SAs between hardware (e.g., IPsec hardware accelerator) and software (e.g., IPsec software accelerator), the methods realize increased optimization, improved user experience, and enhanced product performance in networks using IPsec. For example, an IPsec session is initiated, and it is determined whether a resource limitation for a hardware-based IPsec accelerator has been reached. If the limitation for the hardware-based IPsec accelerator has been reached, processing for the IPsec SA for the initiated IPsec session is offloaded to a software-based IPsec accelerator.

Abstract: In embodiments of the present disclosure, there is provided an approach for connecting an access point (AP) to a wireless multi-hop network. An electronic device obtains device information of the AP in a wireless manner, and the electronic device and the AP can establish a wireless trusted connection based on the device information. Then, the electronic device transmits a configuration to the AP over the wireless trusted connection, wherein the configuration at least indicates an identifier of a wireless multi-hop network and a network role of the AP in the wireless multi-hop network. The AP then connects to the wireless multi-hop network according to the configuration. Embodiments of the present disclosure provide a wireless trusted way to provision an AP, which requires little manual intervention and technical expertise, while ensuring the safety of the provisioning.

Abstract: Examples described herein relate to a selection of a network device in a network installation for a forwarder operation. Selection may include computing a performance score based on a set of performance parameters. Broadcasting the computed performance score to other network devices. Receiving performance scores from the other network devices. Comparing the received performance scores with the computed performance score. Continuing in the forwarder mode based on a determination that the received performance scores are less than its computed performance score. Receiving multicast Domain Name Service (mDNS) packets from one or more client devices. Sending the received mDNS packets to a central service.

Abstract: In embodiments of the present disclosure, there is provided a solution for managing a USB connection between a USB device and a host device. According to embodiments of the present disclosure, a USB management server receives, from a USB management client at a host device, USB ID information for identifying a USB device that is plugged into the host device. Whether the USB ID information is valid is determined based on an authentication policy for authenticating the USB device. If the USB ID information is valid, the USB management client is instructed to permit a connection between the USB device and the host device. Accordingly, the connection may be managed by the USB management server. Embodiments of the present disclosure present an effective way for managing USB connections in a centralized way, which provides various flexible authentication policies and requires less manual operations.

Abstract: Systems and methods are provided for implementing a centralized configurator server/service in the cloud that can take the place of conventional mobile devices used for provisioning IoT devices or WiFi clients in a network. In order to provision the IoT devices or WiFi clients, a mobile device or access point (AP) may be used to relay Device Provisioning Protocol (DPP) messages and/or information between the centralized configurator server/service and the IoT devices or WiFi clients.

Abstract: Example implementations relate to connecting an IoT device to a wireless network using Device Provisioning Protocol (DPP). An authentication server receives a DPP network access authorization request including a connector identifier from an Access Point (AP) in communication with the IoT device. The connector identifier is a hash of the public network access key of the IoT device. If the connector identifier is valid, the authentication server determines a configurable policy from a set of configurable policies that is applicable to the IoT device. The authentication server transmits network permissions defined in the configurable policy to the AR The IoT device is connected to the wireless network by the AP based on the network permissions.

Abstract: Disclosed are an electromagnetic stirring device and a method for a secondary cooling zone during slab continuous casting. The device comprises an electromagnetic stirring device main body comprising a protection housing (3), a phase sequence control assembly, an iron core (4) and an electromagnetic coil (5) for carrying out variable-direction electromagnetic stirring on molten steel by means of three-phase current phase sequence transformation; an opening adjustment assembly comprising an air cylinder (7), a fixed base (8), a movable joint shaft (12) and a silicon steel sheet group insert (13) for adjusting online the opening degree of the closed annular iron core by means of a movable joint structure; and the secondary cooling assembly comprising a cooling water inlet (9) and a cooling water nozzle (10) for cooling the electromagnetic coil and spraying cooling water to a surface of a cast slab (1).

Abstract: An example access point may comprise a processing resource; and a memory resource storing machine-readable instructions to cause the processing resource to: perform a management system search using a dynamic host configuration protocol (DHCP); determine, in view of the management system search, whether a management system discovered is a controller; and select one of a first role within a centralized local area network and a second role within a distributed local area network based on determining whether the management system is the controller, wherein the first role within the centralized local area network is selected when the management system is the controller.

Abstract: Example implementations relate to managing a resource of a network device. A resource of a network device may be assigned from a first tenant to a second tenant of the network device. Resources of the network device may include an assignment right, an access right, and a configuration right, By assigning the resource to the second tenant, the second tenant may be granted an access right to the assigned resource. Responsive to the assignment of the resource, an access right to the assigned resource may be removed from the first tenant such that the first tenant is isolated from the resource.

Abstract: The invention includes, in part, storing a seed image having instructions to communicate with devices of a predetermined device type, but not instructions to provision a network device to be fully operational in a network. A processor boots a network device in the network for a first time, detects if another network device exists in the network, and downloads a full version of a product image from the other network device. The full version of the product image uniquely corresponds to network devices deployed in the network that include at least one device of the predetermined device type, replaces the seed image with the full version of the product image, and provisions the network device to a particular device type of the network.

Abstract: An example access point may comprise a processing resource; and a memory resource storing machine-readable instructions to cause the processing resource to: perform a management system search using a dynamic host configuration protocol (DHCP); determine, in view of the management system search, whether a management system discovered is a controller; and select one of a first role within a centralized local area network and a second role within a distributed local area network based on determining whether the management system is the controller, wherein the first role within the centralized local area network is selected when the management system is the controller.

Abstract: In embodiments of the present disclosure, there is provided a solution for managing a USB connection between a USB device and a host device. According to embodiments of the present disclosure, a USB management server receives, from a USB management client at a host device, USB ID information for identifying a USB device that is plugged into the host device. Whether the USB ID information is valid is determined based on an authentication policy for authenticating the USB device. If the USB ID information is valid, the USB management client is instructed to permit a connection between the USB device and the host device. Accordingly, the connection may be managed by the USB management server. Embodiments of the present disclosure present an effective way for managing USB connections in a centralized way, which provides various flexible authentication policies and requires less manual operations.