Abstract: A multiphase flow metering system, comprising a magnetic resonance multiphase flowmeter and a manifold system, comprising a plurality of control valves and a connection pipeline, for controlling a fluid to flow through the magnetic resonance multiphase flowmeter; and the magnetic resonance multiphase flowmeter comprising a plurality of magnet structures, distributed at intervals in an axial direction and are configured to magnetize a fluid, and further comprises two measurement antennas, distributed at intervals in the axial direction and are configured to perform phase state detection on the magnetized fluid. A multiphase flow metering method is implemented with the multiphase flow metering system, and comprises: measuring a phase state parameter of a fluid, the phase state parameter being a content or speed parameter of a target phase state; collecting reflected signals of the fluid using two measurement antennas; and reading the phase state parameter of the fluid according to collected reflected signals.

Abstract: An optical transceiver module includes a housing having an electrical mating end for mating with a mating electrical connector and an opposing optical mating end for mating with a mating optical connector. A circuit board assembly, a ferrule assembly, and a first support are disposed in the housing. The circuit board assembly includes an optical coupler disposed on a circuit board. The ferrule assembly includes an optical ferrule including a first attachment feature for receiving and permanently attaching to at least one optical fiber and a second attachment feature assembled to the optical coupler. A ferrule support is removably assembled to an interior of the housing and includes at least one support feature. The optical ferrule rests on the at least one support feature. The first support makes contact with the at least one optical fiber. The contact causes a bend in the at least one optical fiber.

Abstract: An optical connector assembly (100) includes a housing (110), an optical ferrule (140); and an optical fiber array (150). The housing (110) has a mating end (111) and an opposite cable end (112) and includes: a first housing portion (120) including a front support (122) proximate the mating end (111) and a rear support (124) disposed between the front support (122) and the cable end (112); and a second housing portion (130) assembled to the first housing portion (120) and including a middle support (133) disposed between the front and rear supports (122,124). The ferrule (140) is supported by the front support (122). Front ends of optical fibers of the optical fiber array (150) are received by and attached to an attachment area of the ferrule (140). When the second housing portion (130) is assembled to the first housing portion (120), the middle support (133) of the second housing portion (130) contacts and bends the optical fiber array (150) about the middle support (133).

Abstract: An optical transceiver module includes a housing having an electrical mating end for mating with a mating electrical connector and an opposing optical mating end for mating with a mating optical connector. A circuit board assembly, a ferrule assembly, and a first support are disposed in the housing. The circuit board assembly includes an optical coupler disposed on a circuit board. The ferrule assembly includes an optical ferrule including a first attachment feature for receiving and permanently attaching to at least one optical fiber and a second attachment feature assembled to the optical coupler. A ferrule support is removably assembled to an interior of the housing and includes at least one support feature. The optical ferrule rests on the at least one support feature. The first support makes contact with the at least one optical fiber. The contact causes a bend in the at least one optical fiber.

Abstract: An optical connector assembly (100) includes a housing (110), an optical ferrule (140); and an optical fiber array (150). The housing (110) has a mating end (111) and an opposite cable end (112) and includes: a first housing portion (120) including a front support (122) proximate the mating end (111) and a rear support (124) disposed between the front support (122) and the cable end (112); and a second housing portion (130) assembled to the first housing portion (120) and including a middle support (133) disposed between the front and rear supports (122,124). The ferrule (140) is supported by the front support (122). Front ends of optical fibers of the optical fiber array (150) are received by and attached to an attachment area of the ferrule (140). When the second housing portion (130) is assembled to the first housing portion (120), the middle support (133) of the second housing portion (130) contacts and bends the optical fiber array (150) about the middle support (133).

Abstract: The embodiments of the present application disclose a method and an apparatus for determining flow rates of components of multiphase fluid. The method comprises: performing a first magnetization treatment and a second magnetization treatment on multiphase fluid in a pipeline in a target oil and gas well, respectively, to obtain first magnetized multiphase fluid and second magnetized multiphase fluid; determining a first echo train signal set and a second echo train signal set corresponding to the first magnetized multiphase fluid and the second magnetized multiphase fluid, respectively; determining contents of an oil phase component, a water phase component, and a gas phase component of the multiphase fluid at a specified horizon position, and determining a flow velocity of the multiphase fluid at the specified horizon position; and determining flow rates of the oil phase component, the water phase component and the gas phase component in the multiphase fluid.

Abstract: The embodiments of the present application disclose a method and an apparatus for determining flow rates of components of multiphase fluid. The method comprises: performing a first magnetization treatment and a second magnetization treatment on multiphase fluid in a pipeline in a target oil and gas well, respectively, to obtain first magnetized multiphase fluid and second magnetized multiphase fluid; determining a first echo train signal set and a second echo train signal set corresponding to the first magnetized multiphase fluid and the second magnetized multiphase fluid, respectively; determining contents of an oil phase component, a water phase component, and a gas phase component of the multiphase fluid at a specified horizon position, and determining a flow velocity of the multiphase fluid at the specified horizon position; and determining flow rates of the oil phase component, the water phase component and the gas phase component in the multiphase fluid.

Abstract: A wireless communication device includes a single baseband processor and RF chain for servicing a first and second SIM. Each of the SIMs connects to a different network, and one may be used for one data type while the other is used for another data type. In order to track the connectivity of an inactive first SIM, a controller periodically interrupts service to the second SIM. During its connection, the first SIM monitors the connection to its network. A triggering mechanism and trigger threshold define when a switch to a new cell is needed. The device receives the mechanism and threshold from the network and calculates a modified threshold and/or mechanism is order to reduce a number of potentially missed calls.

Abstract: A centralized multicast session management system is provided for managing resources in a multicast environment. The session management system includes: at least one multicast application that initiates a request for a multicast session; a session manager is configured to receive the session request from the multicast application and to assign a multicast address for the requested multicast session; and a routing and network manager for managing network resources, where the session manager interacts with the routing and network manager to allocate network resources for the requested multicast session before the multicast address is communicated to the multicast application.

Abstract: A multicast relay system for use in a wide area network, includes an input receptive of multicast data specifying a multicast channel having a multicast address. A proxy election module is adapted to elect a multicasting server proxy disposed within a subnet associated in memory with the multicast channel, wherein the multicasting server proxy is adapted to receive the multicast data and multicast the multicast data on the multicast address within the subnet. A multicast data relay module is adapted to transmit the multicast data to the multicasting server proxy.

Abstract: An automated and distributed method is provided for configuring addressing of nodes in a wireless network, where the nodes includes at least one wireless interface and a network interface which connects to an external network. Briefly, the method includes: assigning a wireless network address to the wireless interface associated with the node; assigning another external network address to the external network interface associated with the node in a manner where a subnet identifier of the network address for the external interface correlates to a host identifier of the network address for the wireless network. The method may further include assigning further network addresses to one or more network devices which share the same subnetwork as the external network interface of the node.

Abstract: A method is provided for mobile wireless ad hoc network, where network nodes using the same routing protocol are uniformly sharing a single contention channel. Network nodes are able to dynamically and distributedly switch roles according to surrounding network environment so that routing functions can be either activated or de-activated in order to improve routing efficiency and increase network capacity by reducing unnecessary routing overhead (which is caused by excessive redundant routing nodes). In addition, the nodes are able to self organize themselves into hierarchies or different roles according to different routing strategies. The proposed role-switching method can be implemented on network nodes which support existing routing protocols or native routing protocol proposed herein to further exploit the proposed role-switching method.

Abstract: A method is provided for selecting a route for transmitting data packets amongst nodes in an ad hoc network. The method includes determining a metric which is indicative of link stability between the nodes in the network; initiating a route discovery procedure that generates a plurality of candidate transmission paths between a source node and a destination node; and selecting a transmission path from amongst the plurality of candidate paths using the metric for nodes associated with each candidate path. The metric may be further defined as link duration (i.e., an amount of time the node maintains a link with neighboring nodes link duration).

Abstract: Improved algorithms are provided for performing path management for a plurality of select data transmission sessions in a multicast network. The algorithms include: constructing a weighted graph which represents topology of the network; assigning load correlated costs to network links; and computing least cost paths for each of the data transmission sessions which accounts for global bandwidth utilization.

Abstract: Distributed modules in a network dynamically select communication protocols to communicate in a secure or firewall-protected network. Applications register with a lookup service. The lookup service maintains a lookup table including registration information for multiple applications. Registration information may include, but is not limited to, IP address, firewall restrictions, tunnel protocol, port information, and proxy queue capabilities. An application seeking to communicate acquires the registration information for a desired recipient from the lookup table. The application uses the registration information to select communication protocols necessary to communicate with the recipient.

Abstract: An improved method is provided for switching paths at a network routing device residing in a multicast distribution environment. The method includes: maintaining a plurality of predetermined path sets in a data store associated with the network routing device, where each path set corresponds to a given network condition and defines a path for each data transmission session; receiving a message indicative of a current network condition at the network routing device; selecting a path set from the plurality of predetermined path sets, where the selected path set correlates to the current network condition; and configuring the network routing device in accordance with the selected path set.

Abstract: A multicasting network route provisioning system for use in allowing an in-session multicast application to switch its path on need includes a datastore of multicast addresses operable to route multicasting traffic over different network paths. It also includes a datastore of multicasting sessions having flows of various flow patterns, wherein a flow pattern is defined in terms of a set of source and destination network nodes, and corresponds to multiple routing network paths. Further, a session management module is adapted to aggregate multicasting session flows by allocating multicast addresses to multicasting sessions based on correspondence between the network paths and flow patterns of the multicasting sessions, thereby ensuring that flow patterns corresponding to different sets of network paths do not share a same multicast address.

Abstract: A centralized multicast session management system is provided for managing resources in a multicast environment. The session management system includes: at least one multicast application that is able to initiate a request for a multicast session; a session manager adapted to receive the session request from the multicast application and operable to assign a multicast address for the requested multicast session; and a routing and network manager for managing network resources, where the session manager interacts with the routing and network manager to allocate network resources for the requested multicast session before the multicast address is communicated to the multicast application.

Abstract: Improved algorithms are provided for performing path management for a plurality of select data transmission sessions in a multicast network. The algorithms include: constructing a weighted graph which represents topology of the network; assigning load correlated costs to network links; and computing least cost paths for each of the data transmission sessions which accounts for global bandwidth utilization.