Abstract: A fuel cell system (100), which includes multiple fuel cell stacks (10, 20) having a pair of adjacent fuel cell stacks (10, 20), namely a first fuel cell stack (10) and a second fuel cell stack (20), each including multiple fuel cells (2), as well as multiple main channels (11, 12, 13) which penetrate the fuel cell stacks (10, 20) for distributing the operating agents to the individual fuel cells (2) is provided. It is provided that the fuel cell stacks (10, 20) of one pair are situated in such a way that a sequence of the main channels (11, 12, 13) is mirror-symmetrical to a plane running between the adjacent fuel cell stacks (10, 20) of the pair, with respect to the different operating agents.

Abstract: A bipolar plate for a fuel cell, including a profiled anode plate and a profiled cathode plate, each having an active region and two distribution regions for feeding and discharging operating media to and from the active region, and each distribution region having a main anode-gas port for supplying and evacuating fuel, a main cathode-gas port for supplying and evacuating oxidant and a main coolant port for supplying and evacuating coolant, the ports being arranged along a lateral edge of the bipolar plate. The plates are stacked so that the bipolar plate has channels interconnecting the main operating media ports of both distribution regions, and the distribution regions have at least one overlapping section, in which the channels overlap such that they do not form fluidic connections. A fuel cell is also provided.

Abstract: A method for monitoring glucose concentration in aqueous humor can include inserting an implantable device into an eye and determining glucose concentration as a function of glucose sensed at the implantable device. The method can optionally include optically detecting glucose concentration as a function of polarimetry and/or fluorescence. A system for monitoring glucose concentration can include devices described herein.

Abstract: The patent discloses a crimp sleeve for the fixation of two or more sections of wire, line, or similar material to each other. The crimp sleeve consists of an outer compressible and permanently deformable layer which is hard and resistant, and an inner cushion layer, which is softer and which conforms to the sections of material to be attached to each other. The multi-layered structure of the crimp sleeve allows for secure fixation without the risk of breakage or slippage of the connection. The invention applies primarily to fishing leaders that have looped ends, but can be applied to other areas where two or more sections of wire or line need to be secured to each other by crimping.

Abstract: A bipolar plate (10) for a fuel cell, including a first half plate (20) having a first thickness (21) and a second half plate (30) having a second thickness (31), the first half plate (20) and the second half plate (30) each being situated with one of their flat sides facing one another, and the first half plate (20) forming a first flow field (22) on its outer side for a first operating medium and the second half plate (30) forming a second flow field (32) on its outer side for a second operating medium is provided. It is provided that the first thickness (21) of the first half plate (20) is on average smaller, at least in sections, than the second thickness (31) of the second half plate (30).

Abstract: A sea water cooling system including a first fluid cooling loop coupled to a first side of a heat exchanger and to a thermal load, a second fluid cooling loop coupled to a second side of the heat exchanger and including a pump for circulating fluid through the second fluid cooling loop, and a controller operatively connected to the pump, wherein the controller is configured to monitor an actual temperature in the first fluid cooling loop and to adjust a speed of the pump based on the monitored temperature to achieve a predetermined temperature in the first fluid cooling loop. The system may be selectively operable in one of a plurality of operating modes, wherein in a first operating mode the pump operates based entirely on cooling demands of the thermal load, and in a second operating mode the pump operates to maintain a fluid pressure above a predefined pressure.

Abstract: A refractory article used at high temperature contains a silica, calcium silicate or mullite matrix with at least a surface having an open porosity filled at least partially with a sulfate, phosphate, or carbonate salt or a mixture of sulfate, phosphate or carbonate salts. The refractory article is resistant to the corrosion and build-up of non-ferrous metals and their alloys.

Abstract: A method and network device are disclosed for multicast forwarding. In one embodiment, the method includes receiving at a node configured to use a bit-indexed forwarding table a multicast message comprising an incoming message bit array. The method further includes comparing the incoming message bit array to a first neighbor bit array within a first forwarding table entry, and determining that for at least one relative bit position in the bit arrays a corresponding destination node is both a destination for the message and a reachable destination from a first neighboring node. The method further includes forwarding toward the first neighboring node a copy of the message, where a first node on the path of the forwarded message is not configured to use a respective bit-indexed forwarding table. An embodiment of the device includes a network interface, a memory and a processor configured to perform steps of the method.

Abstract: Various systems and methods for performing bit indexed explicit replication (BIER) using IPv6. For example, one method involves receiving, at a node, a packet that includes an IP header. The packet also includes a multicast forwarding entry. The method also involves comparing the multicast forwarding entry with forwarding information stored by the node and selecting a neighbor based on the comparing. The method further includes forwarding the packet to the neighbor.

Abstract: A sea water cooling system including a first fluid cooling loop coupled to a first side of a heat exchanger and to a thermal load, a second fluid cooling loop coupled to a second side of the heat exchanger and including a pump for circulating fluid through the second fluid cooling loop, and a controller operatively connected to the pump, wherein the controller is configured to monitor an actual temperature in the first fluid cooling loop and to adjust a speed of the pump based on the monitored temperature to achieve a predetermined temperature in the first fluid cooling loop. The system may be selectively operable in one of a plurality of operating modes, wherein in a first operating mode the pump operates based entirely on cooling demands of the thermal load, and in a second operating mode the pump operates to maintain a fluid pressure above a predefined pressure.

Abstract: A supported radiation protective garment is presented that can be worn by a medical provider under a standard surgical gown during procedures that involve the use of radiation. When used by the provider, the protective garment is lifted by vertical support members which can be extended downward and retracted upward. Rolling or sliding means at the lower end of the vertical support members allow the provider to move unhindered while wearing the radiation protective garment. The provider has access to a control mechanism that allows the shifting between retracted and extended positions of the vertical support members without breaking sterility. An alternative embodiment presents an upper apron portion of the protective garment, which can be manually connected by an assistant to a lower rolling base portion. The invention allows the provider to wear a heavy protective garment, offering significantly better radiation protection than standard ‘lead aprons’, while not being burdened by the weight of the garment.

Abstract: Methods and network devices are disclosed for multicast forwarding. In one embodiment, a method includes receiving at a node a multicast message comprising a message header, where the message header comprises an incoming message bit array and a set identifier value associated with the incoming message bit array. The method further comprises selecting a first forwarding table entry, the first forwarding table entry comprises a set identifier value matching that of the message header. The method further comprises comparing at least a portion of the incoming message bit array to a corresponding portion of a neighbor bit array of the first forwarding table entry, determining that for at least one relative bit position a corresponding destination node is both a destination for the message and a reachable destination from a first neighboring node, and forwarding a copy of the message to the first neighboring node.

Abstract: A sea water cooling system including a first fluid cooling loop coupled to a first side of a heat exchanger and to a thermal load, a second fluid cooling loop coupled to a second side of the heat exchanger and including a pump for circulating fluid through the second fluid cooling loop, and a controller operatively connected to the pump, wherein the controller is configured to monitor an actual temperature in the first fluid cooling loop and to adjust a speed of the pump based on the monitored temperature to achieve a predetermined temperature in the first fluid cooling loop. The system may be selectively operable in one of a plurality of operating modes accordance, wherein in a first operating mode the pump is operated based entirely on cooling demands of the thermal load, and in a second operating mode the pump is operated to maintain a fluid pressure above a predefined pressure.

Abstract: Various systems and methods for performing bit indexed explicit replication (BIER) using IPv6. For example, one method involves receiving, at a node, a packet that includes an IP header. The packet also includes a multicast forwarding entry. The method also involves comparing the multicast forwarding entry with forwarding information stored by the node and selecting a neighbor based on the comparing. The method further includes forwarding the packet to the neighbor.

Abstract: A combination of a fuel tank assembly and a tool for opening an outlet of the fuel tank assembly. The assembly includes a tank for storing a liquid hydrocarbon; and an operator-openable valve arrangement configured to move between a closed flow condition in which flow through the valve arrangement is prevented and an open flow condition in which liquid is allowed to drain out of the tank. The tool is connectable to the valve arrangement, such that in a connected condition of the tool and the arrangement a liquid flow path exists between the interior and the exterior of the tank. The liquid flow path is at least partly defined by a conduit in the tool. A filter, in the flow path, includes a water-permeable member configured to enable water to pass through the water-permeable member and substantially prevent passage of liquid hydrocarbon.

Abstract: An intelligent sea water cooling system including a first fluid cooling loop coupled to a first side of a heat exchanger and to a thermal load, a second fluid cooling loop coupled to a second side of the heat exchanger, a pump for circulating fluid through the second fluid cooling loop, and a controller connected to the pump. The controller may monitor a temperature in the first fluid cooling loop and may adjust a speed of the pump to keep the temperature within a preferred operating range. If the speed of the pump is reduced to a predefined minimum pressure pump speed, the controller may start a timer t1 having a predefined duration. If the timer t1 expires and the temperature has not increased relative to when the timer t1 was started, the controller may reduce the speed of the pump below the minimum pressure pump speed.

Abstract: Computer systems and methods for improving a computer's ability to interface with a user to configure one or more internetworking services provided by a first group of computers for a second group of computers using a pictorial graph with nodes that represent logical network objects.

Abstract: Various systems and methods for performing bit indexed explicit replication (BIER). For example, one method involves receiving a packet at a node. The packet includes a multicast forwarding entry. The multicast forwarding entry has a plurality of elements, and each element corresponds to a particular node. The method also involves comparing the multicast forwarding entry with forwarding information stored by the node. The method involves selecting a neighbor node based on the comparing, updating the multicast forwarding entry in the packet, and forwarding the packet to the neighbor node.

Abstract: The invention concerns a method of sustainably producing an aquaculture meat product by feeding a fish over its dietary cycles an aquaculture feed composition, said method comprising the step of formulating an aquaculture feed composition by replacing all or part of fish oil in the composition with a single microbial source of eicosapentaenoic acid (“EPA”) and docosahexaenoic acid (“DHA”). In a preferred embodiment, the microbial source comprising DHA and EPA derives from a microorganism/microbe of the genus Schizochytrium or Thraustochytrium.

Abstract: The invention relates to a fuel cell (10) having a stack comprising a bipolar plate (20) which has a flow field (22) formed by a profiled section of the bipolar plate (20), and an elongated sealing element (21) which at least partially surrounds the flow field (22), and a membrane electrode assembly (30). It is provided that, inside a cavity (25) formed between the membrane electrode assembly (30) and the bipolar plate (20) in a region between the sealing element (21) and the flow field (22), a filling agent (24) is arranged which extends in the extension direction of the cavity (25).