Abstract: A Cr—Mn—N austenitic heat-resistant steel is provided. The heat-resistant steel comprises, in weight percentage, carbon 0.20% to 0.50%, silicon 0.50% to 2.00%, manganese 2.00% to 5.00%, phosphorus less than 0.04%, sulphur less than 0.03%, chromium 20.00% to 27.00%, nickel 6.00% to 8.00%, molybdenum less than 0.50%, niobium less than 0.60%, tungsten less than 0.60%, vanadium less than 0.15%, nitrogen 0.30% to 0.60%, zirconium less than 0.10%, cobalt less than 0.10%, yttrium less than 0.10%, boron less than 0.20%, with the balance iron. The heat-resistant steel has high temperature strength, high thermal conductivity, low thermal expansion coefficient, good dimensional stability, good ductility, heat resistance, impact resistance, and low production costs, and meets the requirements for high performance engines.

Abstract: An air containment system (22) is configured to span an aisle (12) formed by two rows of racks (14,16) or by one row of racks (14) and a wall (56) to form a ceiling. The air containment system (22) includes a frame structure (24) configured to be supported by the two rows of racks (14,16) or by the one row of racks (14) and the wall (56). The air containment system (22) further includes at least one ceiling panel (30) releasably supported by the frame structure (24), and a lock assembly (64) coupled to the frame structure (24) and configured to release the at least one ceiling panel (30) upon detecting a predetermined condition. Embodiments of the air containment system (22) and methods for releasing ceiling panels (30) are further disclosed.

Abstract: An air containment system (22) is configured to span an aisle (12) formed by two rows of racks (14,16) or by one row of racks (14) and a wall (56) to form a ceiling. The air containment system (22) includes a frame structure (24) configured to be supported by the two rows of racks (14,16) or by the one row of racks (14) and the wall (56). The air containment system (22) further includes at least one ceiling panel (30) releasably supported by the frame structure (24), and a lock assembly (64) coupled to the frame structure (24) and configured to release the at least one ceiling panel (30) upon detecting a predetermined condition. Embodiments of the air containment system (22) and methods for releasing ceiling panels (30) are further disclosed.

Abstract: The present invention concerns content searches in a distributed environment such as in an IPv6 network. This is achieved by deriving a multicast address from a string associated with the content to be searched. The searching party and the server owning the content use a common function for deriving this multicast address. The content owner listens to this multicast address and the searching party sends requests for the content on that multicast address.

Abstract: Methods and systems for using a device as a wireless hotspot service provider are disclosed. An exemplary method for providing a hotspot service provider includes performing a first registration of a first device as a first hotspot service provider in a first coverage are of the first device. The first registration includes identifying an account of an owner of the first device. A second registration of a second device as a hotspot service consumer is also performed. The second registration includes identifying an account of an owner of the second device. A first amount is charged against an account of the owner of the second device based on a resource usage by the second device via the first device. At least a portion of the first amount is credited to the account of the owner of the first device.

Abstract: The present invention concerns content searches in a distributed environment such as in an IPv6 network. This is achieved by deriving a multicast address from a string associated with the content to be searched. The searching party and the server owning the content use a common function for deriving this multicast address. The content owner listens to this multicast address and the searching party sends requests for the content on that multicast address.