摘要:
An airfoil having a suction surface and a pressure surface, the surfaces joined together at leading and trailing portions of the airfoil, the pressure surface converging toward the suction surface at a corner, the surface converging at the corner by an angle approximately equal to or greater than at least 30.degree., such that an air stream flowing from the leading edge and over the pressure surface separates from the pressure surface at the corner. The fan therefore has a thick nose section and is substantially thinner over the majority of its chord length. One or more guide ribs extend from the pressure surface to control the flow of boundary layer air.
摘要:
A digital, DC voltage meter device utilized for metering electric power on a locomotive system. This invention will eliminate the need to use a hand held meter to perform these functions. The meter is permanently built into the Voltage test panel, replacing test receptacles with a large 7/10' LED display that can be read day or night. It is designed to operate in temperatures from -32 degrees Fahrenheit to 158 degrees Fahrenheit. A three position spring loaded switch returning to the off position is used to operate the meter. The present invention is a custom DC voltage meter that is capable of measuring two voltage ranges on a locomotive system; 0-1500 Volts ("V") for main generator voltage can be measured when the switch is in the top position; and 0-75 millivolts ("mV") for load test shunt millivoltage can be measured when the switch is in the bottom position. The meter is also capable of displaying the Dynamic Braking Voltage when the locomotive's dynamic brake is engaged.
摘要:
Embodiments of methods and systems for improving boot-up time in computer systems utilize RAM in devices separate from the main memory, normally dedicated to another function, to provide a stack and temporary storage during BIOS execution, enabling BIOS to call subroutines and execute in a multi-threading fashion, speeding system boot-up.
摘要:
Methods and apparatus to migrate a temporary memory location to a main memory location are disclosed. In one example, a disclosed method may include copying the content from the temporary memory location to the main memory location, calculating a migration factor between the temporary memory location and the main memory location and modifying a value in main memory that identifies the temporary memory location to identify the main memory location.
摘要:
The present invention provides an axial fan assembly including a motor having an output shaft rotatable about a central axis and a shroud coupled to the motor. The shroud includes a substantially annular outlet bell centered on the central axis. The axial fan assembly also includes an axial fan having a hub coupled to the output shaft for rotation about the central axis, a plurality of blades extending radially outwardly from the hub and arranged about the central axis, a substantially circular band coupled to the tips of the blades, and a plurality of leakage stators positioned radially outwardly from the band and adjacent the outlet bell.
摘要:
In some embodiment, an arrangement is provided to prevent a loss of data in a memory due to a power failure for a computing system. When the power failure occurs, any pending memory write operations may be completed and dirty cache lines may be flushed back to the memory. Subsequently, the computing system may be put into a loss-prevention state, under which power may be turned off for all components in the computing system except the memory. The memory is powered by a battery pack which includes batteries and is in a self refresh state. When the power returns, applications and operating systems running in the computing system may resume what is left out when the power supply failure occurs, based at least in part on data retained in the memory. Other embodiments are described and claimed.
摘要:
Embodiments include monitoring a computing system to determine whether firmware of the computing system is corrupted, hung up, or requires automatic update. The computing system may then request firmware update data over a network. Moreover, the computing system may include a controller with capability to determine whether the firmware is corrupted or hung and request and receive firmware update data over a network. In addition, the controller may have the capability operate when the firmware is corrupted or hung up, if the processor is held up, and if the operating system is halted, hung up, or soft-off. In addition, if the controller detects that the firmware is corrupted or hung up, the controller may halt the processor while updating the firmware.
摘要:
Compounds of the invention, such as compounds of formula (I): where n, m, A, B, R1, R2, R3, R4 and R5 are defined herein, are useful as modulators of the activity of liver X receptors. Pharmaceutical compositions containing the compounds and methods of using the compounds are also disclosed.
摘要:
A panic-proof lockset includes a deadbolt and a spring latch. An interior escutcheon supports a knob for operating the spring latch and a second knob for operating the deadbolt. A crank is coupled to the second knob and a slide member is adapted to turn the crank either selectively clockwise or counterclockwise to a position generally corresponding to the open position of the deadbolt. The slide is in tension when acting on the crank to turn the crank to a position generally corresponding to the open position of the deadbolt. A cam means is provided for moving the slide member in response to rotary motion of the knob whereby the deadbolt and the spring latch are simultaneously retracted by turning the knob. This construction enables a user to rotate one knob to simultaneously retract the deadbolt and the spring latch, thereby providing easy exit in a panic situation.
摘要:
A method for updating platform firmware is disclosed. This capability is facilitated by a standard software abstraction for a firmware storage device, known as Firmware Volume (FV) that is managed through a Firmware File System (FFS). The FFS enables firmware files to be created, deleted, and updated individually. The FFS also enables a plurality of firmware files to be updated atomically by managing file state information via state bits stored in a file header of each firmware file, whereby an atomic change to a single state bit simultaneously causes the FFS to use an updated set of firmware files in place of an original set of firmware files.