Abstract: An absorbent wound dressing comprises a hydrophilic porous substrate and polymer-stabilized silver nanoparticles distributed throughout the porous substrate. The silver nanoparticles have a particle size d50 in the range of about 45 nm to about 85 nm and the silver nanoparticles are present in the substrate in an amount of about 0.16% to about 1.5% by weight of the total weight of the substrate. The wound dressing produces a 7-day log reduction of 4 or more for bacteria in accordance with the Modified AATCC Test Method 100. The wound dressing is also non-cytotoxic in accordance with ISO 10993-5 standard procedure for medical device cytotoxicity assessment.

Abstract: A fuel cell system includes grid independent operation with DC microgrid capability. This fuel cell system has a capability of operation with and without the grid, and with DC micro-grid capability.

Abstract: A fuel cell system includes grid independent operation with DC microgrid capability. This fuel cell system has a capability of operation with and without the grid, and with DC micro-grid capability.

Abstract: A method includes receiving a direct current (DC) signal at an inverter control system from a bus. The inverter control system includes an inverter and an inverter controller. The received DC signal is compared to a reference value. Based at least in part on the comparison, the inverter controller determines whether to adjust a magnitude of the DC signal received through the bus. The DC signal is converted to an alternating current (AC) signal with the inverter, and the AC signal is provided to a load.

Abstract: A method for charging electric vehicles includes receiving information regarding an electric vehicle. At least a portion of the information is received through a vehicle interface configured to place a battery of the electric vehicle into electrical communication with a fuel cell system. A charge is delivered from the fuel cell system to the battery of the electric vehicle through the vehicle interface without use of a direct current to alternating current (DC/AC) converter. The charge is delivered based at least in part on the information.

Abstract: Disclosed are filters, smoking devices, related articles and apparatus, and related methods. The filters include porous masses that have an active particle and a binder particle, wherein the active particle comprises carbon and the porous mass has a carbon loading of at least about 6 mg/mm and an encapsulated pressure drop of about 20 mm of water or less per mm of porous mass.

Abstract: A method for charging electric vehicles includes receiving information regarding an electric vehicle. At least a portion of the information is received through a vehicle interface configured to place a battery of the electric vehicle into electrical communication with a fuel cell system. A charge is delivered from the fuel cell system to the battery of the electric vehicle through the vehicle interface without use of a direct current to alternating current (DC/AC) converter. The charge is delivered based at least in part on the information.

Abstract: A polyethylene powder is described having a molecular weight in the range of from 3,000,000 g/mol to less than 4,000,000 g/mol as determined by ASTM 4020 and a bulk density of 0.10 to 0.20 g/cm3. On sintering, the polyethylene powder produces a porous article having an elastic modulus of at least 90 MPa.

Abstract: Disclosed are filters, smoking devices, related articles and apparatus, and related methods. The filters include porous masses that have an active particle and a binder particle, wherein the active particle comprises carbon and the porous mass has a carbon loading of at least about 6 mg/mm and an encapsulated pressure drop of about 20 mm of water or less per mm of porous mass.

Abstract: In one example embodiment, the method includes receiving an X.25 packet at a LAN interface of a network device. Further, the method includes determining whether a local CUG value is associated with the X.25 packet. The local CUG value may be replaced with a network CUG value associated with the X.25 packet. Thereafter, the X.25 packet, and the associated network CUG value, may be formatted to generate an IP packet. The formatting may include the use of at least one formatting regime including encapsulating the X.25 packet, that includes the associated network CUG value, in an XOT, or using protocol translation to translate the X.25 packet that includes the network CUG value into an equivalent IP packet. The method includes transmitting the IP packet using a WAN interface card, the WAN interface card including a primary interface, and at least one backup interface.

Abstract: A polyethylene powder has a molecular weight in the range of about 300,000 g/mol to about 2,000,000 g/mol as determined by ASTM-D 4020, an average particle size, D50, between about 300 and about 1500 ?m, and a bulk density between about 0.25 and about 0.5 g/ml. On sintering, the polyethylene powder produces a porous article having a porosity of at least 45% and a pressure drop less than 5 mbar. The porous article is useful in, for example, wastewater aeration and capillary and filtration applications.

Abstract: A method of providing electrical power using a split bus configuration includes receiving a first direct current at a positive bus of a split bus, where the first direct current originates from a first fuel cell segment. A second direct current is received at a negative bus of the split bus, where the second direct current originates from a second fuel cell segment. A third direct current is also received at the split bus such that a combined direct current is formed including the first direct current, the second direct current, and the third direct current. The third direct current originates from an alternative direct current (DC) source. The combined direct current is provided to an inverter such that an alternating current is generated for a load.

Abstract: A method of providing electrical power using a split bus configuration includes receiving a first direct current at a positive bus of a split bus, where the first direct current originates from a first fuel cell segment. A second direct current is received at a negative bus of the split bus, where the second direct current originates from a second fuel cell segment. A third direct current is also received at the split bus such that a combined direct current is formed including the first direct current, the second direct current, and the third direct current. The third direct current originates from an alternative direct current (DC) source. The combined direct current is provided to an inverter such that an alternating current is generated for a load.

Abstract: Systems, methods and devices for power generation systems are described. In particular, embodiments of the invention relate to the architecture of power conditioning systems for use with fuel cells and methods used therein. More particularly, embodiments of the present invention relate to methods and systems usable to reduce ripple currents in fuel cells.

Abstract: A method for starting up a fuel cell arrangement includes receiving a first electrical signal from an alternative power source. At least a portion of the first electrical signal is provided to a balance of plant (BOP) load, where the BOP load is in electrical communication with a fuel cell system. It is determined whether a startup threshold of the fuel cell system is met. If the startup threshold is met, a second electrical signal is provided from the fuel cell system to the BOP load, where a combination of the first electrical signal and the second electrical signal corresponds to a load demand of the BOP load. A value of the second electrical signal is increased and a value of the first electrical signal is decreased until the load demand of the BOP load is met by the fuel cell system.

Abstract: An exemplary method of providing electrical power is provided. A first alternating current is received from a grid. The first alternating current is converted to a first direct current using a first inverter in electrical communication with the grid. The first inverter is also in electrical communication with a fuel cell system. The first direct current is converted to a second alternating current using a second inverter, and the second alternating current is provided to a load.

Abstract: Methods and systems have been provided for communicating digital voice data. According to various embodiments of the invention, a user interface is provided at a network device in the presence of DSP resources. Selection is made by the user interface about whether to use the DSP resources. Based on the selection, the digital voice data is communicated. Selection of bypassing a DSP resource is made by default if no DSP resources are present.

Abstract: A fuel cell system includes grid independent operation with DC microgrid capability. This fuel cell system has a capability of operation with and without the grid, and with DC micro-grid capability.

Abstract: Systems, methods and devices for power generation systems are described. In particular, embodiments of the invention relate to the architecture of power conditioning systems for use with fuel cells and methods used therein. More particularly, embodiments of the present invention relate to methods and systems usable to reduce ripple currents in fuel cells.

Abstract: A tobacco smoking device comprises a porous mass of active particles adapted to enhance a tobacco smoke flowing over said active particles and binder particles. The active particles comprises about 1-99% weight of the porous mass, and the binder particles comprises about 1-99% weight of said porous mass. The active particles and said binder particles are bound together at randomly distributed points throughout the porous mass. The active particles have a greater particle size than the binder particles.