摘要:
An alloy for use as a welding overlay for boiler tubes in a low NOx coal-fired boiler comprising in % by weight: 36 to 43% Cr, 0.2 to 5.0% Fe, 0-2.0% Nb, 0-1% Mo, 0.3 to 1% Ti, 0.5 to 2% Al, 0.005 to 0.05% C, 0.005 to 0.020% (Mg+Ca), 0-1% Mn, 0-0.5% Si, less than 0.01% S, balance substantially Ni and trace additions and impurities. The alloy provides exceptional coal ash corrosion resistance in low partial pressures of oxygen. The alloy also increases in hardness and in thermal conductivity at service temperature over time. The increased hardness improves erosion resistance of the tubes while the increased thermal conductivity improves the thermal efficiency of the boiler and its power generation capabilities.
摘要:
A method of roll-forming sheet or plate into a round hollow, welding the round hollow with a welding alloy that matches the alloy of the round hollow to form a welded pipe, annealing the welded pipe at a minimum of 1950° F. to provide a carbide-free microstructure, ultrasonic inspecting to assure sound welds, and cold-working the annealed and inspected pipe via drawing or pilgering to the desired tensile strength. The compositional range alloys suitable for use in the method of the present invention in weight % is: 25.0-65.0% Ni, 15.0-30.0% Cr, 0-18.0% Mo, 2.5-48.0% Fe, 0-5.0% Cu, 0-5.0% Mn, 0-5.0% Nb, 0-2.0 Ti, 0-5.0% W, 0-1.0% Si, and 0.005-0.1% C. The process has been most preferably optimized for an alloy range consisting of 32.0-46% Ni, 19.5-28.0% Cr, 18.0-40.0% Fe, 3.0-8.0% Mo, 1.0-3.0% Cu, 0.6-1.2% Ti, 0.5-2.0% Mn, 0.1-0.5% Si, 0.01-0.08% C. The present invention also includes the pipe made thereby.
摘要:
There is disclosed a process for encrypting a data stream to secure the data stream for single viewing and to protect copyrights of the data stream. Specifically, there is disclosed a process for protecting streaming multimedia, entertainment and communications in an Internet-type transmission. There is further disclosed a streaming server component operably connected with a streaming server that interacts with a client system to affect the inventive process.
摘要:
A method, computer program product and system for controlling the maximum turbo mode of a processor in a turbo boost state. The method comprises limiting a maximum turbo mode available to the processor by over-reporting the amount of current drawn by the processor to the current monitoring feedback line to the processor, wherein the processor uses the over-reported current to maintain operation of the processor within performance specifications of the processor. An automatic calibration routine may be used to determine nominal amounts of current over-reporting that may be used to prevent the processor performance from exceeding the maximum turbo mode. In one embodiment, a digital potentiometer is included in the voltage regulator circuit to over-report the current as instructed.
摘要:
A method, apparatus, and system are directed towards providing advertisement insertions at a point of consumption into digital content, such as broadcast television content. A content provider may initially mark the content for advertisement insertion, and create a metadata file indicating constraints, targets, expirations, or the like. A downstream user employs a plug-in component and provides an initial user profile, in part, to access the content with advertisements. As the content is played, and an advertising marker is encountered, fast forwarding or other skipping features are disabled, and an advertisement stream is spliced into the content stream. The advertisement stream is determined based on the user profile and/or other metadata. Moreover, the advertisement stream may be obtained over a network such that advertisements may be refreshed even years after the content has been acquired by the user. In one embodiment, the advertisement consumption may be tracked and reported.
摘要:
Printed circuit boards for countering signal distortion are disclosed that include: a conductive pathway on a printed circuit board between a transmitter and a receiver, the conductive pathway comprised of traces and vias connected together for conductive transfer of a signal from the transmitter to the receiver; a parasitic element on the printed circuit board, the parasitic element having a parasitic effect that distorts the signal; and one or more passive elements mounted adjacent to the conductive pathway without connecting to the conductive pathway, the passive elements having a corrective effect to reduce the distortion from the parasitic effect on the signal.
摘要:
A method, apparatus, and system are directed towards providing advertisement insertions at a point of consumption into digital content, such as broadcast television content. A content provider may initially mark the content for advertisement insertion, and create a metadata file indicating constraints, targets, expirations, or the like. A downstream user employs a plug-in component and provides an initial user profile, in part, to access the content with advertisements. As the content is played, and an advertising marker is encountered, fast forwarding or other skipping features are disabled, and an advertisement stream is spliced into the content stream. The advertisement stream is determined based on the user profile and/or other metadata. Moreover, the advertisement stream may be obtained over a network such that advertisements may be refreshed even years after the content has been acquired by the user. In one embodiment, the advertisement consumption may be tracked and reported.
摘要:
A method, computer program product and system for controlling the maximum turbo mode of a processor in a turbo boost state. The method comprises limiting a maximum turbo mode available to the processor by over-reporting the amount of current drawn by the processor to the current monitoring feedback line to the processor, wherein the processor uses the over-reported current to maintain operation of the processor within performance specifications of the processor. An automatic calibration routine may be used to determine nominal amounts of current over-reporting that may be used to prevent the processor performance from exceeding the maximum turbo mode. In one embodiment, a digital potentiometer is included in the voltage regulator circuit to over-report the current as instructed.
摘要:
A high temperature, high strength Ni—Co—Cr alloy possessing essentially fissure-free weldability for long-life service at 538° C. to 816° C. contains in % by weight about: 23.5 to 25.5% Cr, 15-22% Co, 1.1 to 2.0% Al, 1.0 to 1.8 % Ti, 0.95 to 2.2% Nb, less than 1.0% Mo, less than 1.0% Mn, less than 0.3% Si, less than 3% Fe, less than 0.3% Ta, less than 0.3% W, 0.005 to 0.08% C, 0.01 to 0.3% Zr, 0.0008 to 0.006% B, up to 0.05% rare earth metals, 0.005% to 0.025% Mg plus optional Ca and the balance Ni including trace additions and impurities. The strength and stability is assured at 760° C. when the Al/Ti ratio is constrained to between 0.95 and 1.25. Further, the sum of Al+Ti is constrained to between 2.25 and 3.0. The upper limits for Nb and Si are defined by the relationship: (% Nb+0.95)+3.32(% Si)
摘要:
An earth boring bit has an outer row of inserts located within extra deep holes. Each of the holes has a cylindrical sidewall with a depth greater than the length of the barrel of the insert mounted within. The difference in depth is at least equal to a distorted entry zone in the hole. A portion of the sidewall that includes the entry zone surrounds the cutting end, reducing the projection of the cutting end from the land.