摘要:
A digital computer includes a plurality of processing elements, a command processor, a diagnostic processor and a communications network. The processing elements each performs data processing and data communications operations in connection with commands. The processing elements also performing diagnostic operations in response to diagnostic operation requests and providing diagnostic results in response thereto. The command processor generates commands for the processing elements, and also performs diagnostic operations in response to diagnostic operation requests and providing diagnostic results in response thereto. The diagnostic processor generates diagnostic requests. The communication network includes three elements, including a data router, a control network and a diagnostic network. The data router is connected to the processing elements for facilitating the transfer of data among them during a data communications operation. The control network is connected to the processing elements and the command processor for transferring commands from the command processor to the processing elements. The diagnostic network connected to the processing elements, the command processor and the diagnostic processor for transferring diagnostic requests from the diagnostic processor to the processing elements and the command processor and for transferring diagnostic results from the processing elements and the command processor to the diagnostic processor.
摘要:
A method, apparatus and computer program product for storing data in a disk storage system is presented. A high-performance dictionary data structure is defined. The dictionary data structure is stored on a disk storage system. Key-value pairs can be inserted and deleted into the dictionary data structure. Updates run faster than one insertion per disk-head movement. The structure can also be stored on any system with two or more levels of memory. The dictionary is high performance and supports with full transactional semantics, concurrent access from multiple transactions, and logging and recovery. Keys can be looked up with only a logarithmic number of transfers, even for keys that have been recently inserted or deleted. Queries can be performed on ranges of key-value pairs, including recently inserted or deleted pairs, at a constant fraction of the bandwidth of the disk.
摘要:
A method, apparatus and computer program product for storing data in a disk storage system is presented. A high-performance dictionary data structure is defined. The dictionary data structure is stored on a disk storage system. Key-value pairs can be inserted and deleted into the dictionary data structure. Updates run faster than one insertion per disk-head movement. The structure can also be stored on any system with two or more levels of memory. The dictionary is high performance and supports with full transactional semantics, concurrent access from multiple transactions, and logging and recovery. Keys can be looked up with only a logarithmic number of transfers, even for keys that have been recently inserted or deleted. Queries can be performed on ranges of key-value pairs, including recently inserted or deleted pairs, at a constant fraction of the bandwidth of the disk.
摘要:
A system includes interconnected computers and switching nodes. A source computer for the virtual circuits schedules message transmissions on a round-robin basis. Each switching node also forwards messages in a round-robin manner, and a destination computer schedules processing of received messages in a round-robin manner. In addition, messages are transmitted in cells to reduce delays in short messages if long messages are transmitted for one virtual circuit before transmission of a short message for another virtual circuit. For each virtual circuit, the destination computer and each switching node can generate a virtual circuit flow control message to temporarily limit transmissions if the resources being taken up by messages exceed predetermined thresholds. In addition, each switching node or computer can generate link flow control messages for transmission to neighboring devices to temporarily limit transmissions if the resources taken up by all virtual circuits exceeds predetermined thresholds.
摘要:
Sustained-release compositions for delivering therapeutic concentrations of isovaleramide, isovaleric acid, and certain structurally related compounds are provided for the treatment for a variety of pathological conditions, including epilepsy and spasticity, which are ameliorated by effecting a modulation of CNS activity. The ability of the compositions to sustain relatively constant levels of the drug at a therapeutic dose in the serum for extended periods of time enables a once or twice daily administration schedule.
摘要:
The present invention features a method of making a gel cosmetic stick. The method comprises first mixing a particulate dibenzylidene alditol with a liquid vehicle which contains an antiperspirant salt dissolved therein to form a uniform dispersion. The dibenzylidene alditol is mixed with the liquid vehicle at a temperature sufficiently low, preferably below 50.degree. C., so that substantially none of the dibenzylidene alditol dissolves in the liquid vehicle. This dispersion may comprise a commercial size quantity, typically greater than 200 kg. A portion of this dispersion, typically a relatively small portion, is then heated to a temperature sufficient to dissolve the dibenzylidene alditol therein, then cooled to form a gel. This heating and cooling is conducted sufficiently rapidly so as to minimize degradation of the dibenzylidene alditol. Preferably the heating and cooling is conducted such that said portion is subjected to a temperature greater than 90.degree. C. for not more than two hours, most preferably not more than thirty minutes.
摘要:
A method and apparatus is provided for operating a piston driven, internal combustion engine (10) including a the piston (40) translating in a cylinder (30). The engine (10) has an intake stroke, followed by a partial exhaust stroke, followed by a compression stroke, followed by a power stroke and then an exhaust stroke, all of which are sequentially repeated. The compression stroke has a stroke length that is less than the stroke length of the power stroke.
摘要:
A system includes a plurality of computers interconnected by a network including one or more switching nodes. The computers transfer messages over virtual circuits established thereamong. A computer, as a source computer for one or more virtual circuit(s), schedules transmission of messages on a round-robin basis as among the virtual circuits for which it is source computer. Each switching node which forms part of a path for respective virtual circuits also forwards messages for virtual circuits in a round-robin manner, and, a computer, as a destination computer for one or more virtual circuit(s), schedules processing of received messages in a round-robin manner. Round-robin transmission, forwarding and processing at the destination provides a degree of fairness in message transmission as among the virtual circuits established over the network. In addition, messages are transmitted in one or more cells, with the round-robin transmission being on a cell basis, so as to reduce delays which may occur for short messages if a long messages were transmitted in full for one virtual circuit before beginning transmission of a short message for another virtual circuit. For each virtual circuit, the destination computer and each switching node along the path for the virtual circuit can generate a virtual circuit flow control message for transmission to the source computer to temporarily limit transmission over the virtual circuit if the amount of resources being taken up by messages for the virtual circuit exceeds predetermined thresholds, further providing fairness as among the virtual circuits. In addition, each switching node or computer can generate link flow control messages for transmission to neighboring devices in the network to temporarily limit transmission thereto if the amount of resources taken up by all virtual circuits exceeds predetermined thresholds, so as to reduce the likelihood of message loss.
摘要:
A water-powered aircraft/sprinkler utilizes an airfoil and a water jet nozzle power source to provide a manually maneuverable aircraft/sprinkler supplied with a pressurized water stream through a movable boom and a portable stationary gantry.
摘要:
A method and apparatus is provided for operating a piston driven, internal combustion engine (10) including a the piston (40) translating in a cylinder (30). The engine (10) has an intake stroke, followed by a partial exhaust stroke, followed by a compression stroke, followed by a power stroke and then an exhaust stroke, all of which are sequentially repeated. The compression stroke has a stroke length that is less than the stroke length of the power stroke.