Abstract: An acid corrosion inhibitor is provided that is compatible with viscoelastic surfactants and useful for enhancing the production of hydrocarbon bearing formations. The viscoelastic surfactant can used in fracturing of subterranean formations penetrated by an oil or gas well or in connection with acidizing or other treatment processes. The acid corrosion inhibitor can include a viscoelastic surfactant and an active inhibition compound which can comprise a reaction product of thiourea, paraformaldehyde and acetophenone, or amines (linear or cyclic), amine quaternaries (linear or cyclic) or combinations or mixtures thereof.

Abstract: The present invention provides an axial fan including a hub adapted for rotation about a central axis and a plurality of blades extending radially outwardly from the hub and arranged about the central axis. Each of the blades includes a root, a tip, a leading edge between the root and the tip, and a trailing edge between the root and the tip. Each of the blades defines a blade radius between the blade tips and the central axis. Each of the blades defines a decreasing skew angle within the outer 20% of the blade radius. The ratio of blade pitch to average blade pitch increases from a lowest value to a highest value within the outer 20% of the blade radius. The highest value is about 30% to about 75% greater than the lowest value.

Abstract: 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.

Abstract: 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.

Abstract: The present invention provides an axial fan including a hub adapted for rotation about a central axis and a plurality of blades extending radially outwardly from the hub and arranged about the central axis. Each of the blades includes a root, a tip, a leading edge between the root and the tip, and a trailing edge between the root and the tip. Each of the blades defines a blade radius between the blade tips and the central axis. Each of the blades defines a decreasing skew angle within the outer 20% of the blade radius. The ratio of blade pitch to average blade pitch increases from a lowest value to a highest value within the outer 20% of the blade radius. The highest value is about 30% to about 75% greater than the lowest value.

Abstract: 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.

Abstract: A method and apparatus for authenticated recoverable key distribution are described. In one embodiment, an application key is provided to an integrated chip platform. In one embodiment, the integrated chip platform encrypts the application key with a Key Encryption Key, which is stored within the persistent memory on the platform, and outputs a ChipID and the encrypted application key to enable recovery. In one embodiment, the platform can provide the ChipID to a recovery database to replace a lost encrypted application key. In one embodiment, the ChipID is the public key of a public/private key pair, and the application key is provided to the integrated chip platform by encrypting it using this public key. In one embodiment, the ChipID and the Key Encryption Key are derived from a secret random number programmed into the integrated chip. Other embodiments are described and claimed.

Abstract: Mobile communication data received at the sending based transceiver station via a radio frequency transmission is received a packet data network from a sending base transceiver station. The mobile communication data is forwarded to a base station controller via an interface defined at least in part by a third party base station controller vendor.

Abstract: An external rotor motor is disclosed, which features a stator (11) and a rotor (13) surrounding the stator (11) while leaving an air gap. A damper (16) made of an elastic material is arranged on the outside of the rotor (13) in order to dampen resonant rises in airborne sound, which is emitted by the rotor of the external rotor motor and by an assembly coupled to it. In the case of a rotor (13) that is designed to be pot-shaped, the damper (16) is preferably embodied as a damping cap (17), which surrounds the pot jacket (132) and at least partially covers the pot base (131) (FIG. 1).

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: An external rotor motor is disclosed, which features a stator (11) and a rotor (13) surrounding the stator (11) while leaving an air gap. A damper (16) made of an elastic material is arranged on the outside of the rotor (13) in order to dampen resonant rises in airborne sound, which is emitted by the rotor of the external rotor motor and by an aggregate coupled to it. In the case of a rotor (13) that is designed to be pot-shaped, the damper (16) is preferably embodied as a damping cap (17), which surrounds the pot jacket (132) and at least partially covers the pot base (131) (FIG. 1).

Abstract: The present invention relates to a digital DC voltage and horse power multimeter device unitized in determining the voltage and horse power on a locomotive system. The meter is permanently mounted onboard the locomotive and is capable of instantaneous determination of the voltage reading and horse power to provide real time evaluation of the locomotive's functions. The meter is built into the voltage test panel, replacing the test receptacles, and is designed to prevent operator error in that a voltage range is not required to be set before the multimeter reads a desired voltage. The meter is capable of reading the main generator, a load shunt test millivoltage, and is capable of determining the horse power of a locomotive system. The invention is therefore a device for metering electrical energy and calculating the horse power on a locomotive system which is permanently installed which operates off the existing 74V DC accessory power and is safer due to the absence of manual range settings.

Abstract: 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.

Abstract: 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.

Abstract: 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.