摘要:
A system and method for identifying a failed storage device in a storage system comprising a plurality of storage devices connected by a ring-type network is disclosed. In one embodiment, when a storage device fails, all storage devices on the ring-type network are disconnected to re-establish communication on the ring-type network. An iterative process of connecting a subset of storage devices to the ring-type network and testing communication on the ring-type network is performed until communication on the ring-type network is re-established. Then, individual storage devices are connected to the ring-type communication until the connection of a storage device causes communication on the ring-type network to fail, thereby identifying the failed storage device. In another embodiment, devices in a reporting group are tested on a shelf-by-shelf basis.
摘要:
A controller for positioning on a shelf of a cabinet within a mass storage system for controlling communication among device enclosures in a reporting group. The controller includes an interface to a data communication loop linking device enclosures each including disk drives positioned on one or more cabinets. The interface is used to transmit control commands. A cabinet bus interface controller is provided and linked to a cabinet bus in the cabinet to receive enclosure reporting messages from the device enclosures to collect environment information. The cabinet bus interface transmits reporting messages onto the cabinet bus to provide environmental information. The interface controller determines the shelf location of the controller within the cabinet from signals on the cabinet bus and receives the cabinet identifier over the cabinet bus. A processor is linked to the interface controller and functions to create and issue the control commands to the loop interface.
摘要:
A multi-cabinet mass storage system with unified management features. The system includes a first reporting group and a second reporting group each having enclosure with processors, such as an environmental monitoring units (EMUs), for generating and transmitting environmental messages pertaining to the particular enclosures. The enclosures are positioned on shelves within cabinets. A bus or cabinet cable links each enclosure to facilitate broadcasting the environmental messages. The environmental messages identify the sending device's reporting group and its physical location within the system. Additional enclosures are included in this reporting group with enclosures of each reporting group located all in one cabinet, in two or more cabinets, and each cabinet may house one, two, or more reporting groups. A network links all of the cabinets to concurrently broadcast the environmental messages throughout the system and allows enclosures in a single reporting group to be positioned in differing cabinets.
摘要:
A system and method for producing bitumen or heavy oil from a clastic or carbonate reservoir. The mobility of the bitumen or heavy oil is increased by conductive heating to reduce the viscosity. The bitumen or heavy oil is heated to temperatures below the thermal cracking temperature of the bitumen or heavy oil. As the bitumen or heavy oil is produced, evolved gases or evaporated connate water or both form a gas chamber to at least partially the voids left by the produced bitumen or heavy oil.
摘要:
A ballast circuit (6) comprises a rectifier circuit (8) and dual starting circuits (11, 13) that ensure ballast startup and lamp ignition regardless of input waveform half cycle. The first starting circuit comprises resonant circuit (10), and the second starting circuit includes a resistor (11). The resistor (11) comprising the second startup circuit provides a bias resistance to the second switches (72) to ensure ballast startup when an oscillating input waveform is in a negative phase.
摘要:
Disclosed is a lamp transformer and method of assembling a lamp transformer within an igniter module or housing. The lamp transformer comprising a potted bar core transformer; and a carrier attached to the potted bar core transformer, the carrier adapted to position the potted bar core transformer on a pc board at a predetermined location.
摘要:
Disclosed is a lamp transformer and method of assembling a lamp transformer within an igniter module or housing. The lamp transformer comprises a potted bar core transformer; and a carrier attached to the potted bar core transformer, the carrier adapted to position the potted bar core transformer on a pc board and/or within a housing at a predetermined location. In addition, disclosed is a transformer winding and potting method utilizing a transformer carrier.
摘要:
A steam turbine rotor has at least a first stage and a last stage. The rotor is optimised for operation in a wet steam environment at steam temperatures of less than 300° C. by being made more resistant to stress corrosion cracking (SCC). The yield strength of the rotor varies along its axial length such that the yield strength of the rotor in the region of the last turbine stage is more than the yield strength of the rotor in the region of at least one earlier turbine stage.
摘要:
In order to obtain a novel binding protein against a chosen target, DNA molecules, each encoding a protein comprising one of a family of similar potential binding domains and a structural signal calling for the display of the protein on the outer surface of a chosen bacterial cell, bacterial spore or phage (genetic package) are introduced into a genetic package. The protein is expressed and the potential binding domain is displayed on the outer surface of the package. The cells or viruses bearing the binding domains which recognize the target molecule are isolated and amplified. The successful binding domains are then characterized. One or more of these successful binding domains is used as a model for the design of a new family of potential binding domains, and the process is repeated until a novel binding domain having a desired affinity for the target molecule is obtained. In one embodiment, the first family of potential binding domains is related to bovine pancreatic trypsin inhibitor, the genetic package is M13 phage, and the protein includes the outer surface transport signal of the M13 gene III protein.
摘要:
A hand held tool about the size of a conventional screwdriver that facilitates the installation and removal of circuit board test points. A first socket member at the distal end of the tool engages the outer part of a test point and a second socket member in axial alignment with the first engages the inner part of the test point. The first socket member has an inner diameter greater than the outer diameter of the second socket member so that the second socket member is retractable into the first when the outer and inner parts of a test point are simultaneously engaged by the first and second socket members, respectively. A spring maintains the second socket member forwardly of the first socket member when the tool is not in use. The socket members are independently rotatable under the control of separate handle members.