摘要:
Sponge titanium powder is compacted, advantageously by roll compaction to a density in the range of about 60% to 80% of the density of solid titanium metal, thereafter heat treated in vacuum at about 500.degree. C. to 750.degree. C., cooled in vacuum to 300.degree. C. and quenched to 100.degree. C. to provide a substrate for electrodes useful in electrolytic processes.
摘要:
A system for cooling a gas turbine engine control component comprises a control component, at least one duct in fluid communication with the component and the atmosphere, and a valve assembly located with the duct for modulating airflow to the component. A method for cooling a gas turbine engine control component comprises the steps of: a) providing a system for cooling the component, the system comprising at least one duct in fluid communication with the component and the atmosphere and a valve assembly located with the duct for modulating airflow to the component; b) exposing the system to a first condition where cooling of the component is required; c) opening the valve assembly in response to the first condition; d) exposing the system to a second condition where cooling of the component is not required; and e) closing the valve assembly in response to the second condition.
摘要:
A method for forming a field effect transistor device employs a self-aligned etching of a semiconductor substrate to form a recessed channel region in conjunction with a pair of raised source/drain regions. The method also provides for forming and thermally annealing the pair of source/drain regions prior to forming a pair of lightly doped extension regions within the field effect transistor device. In accord with the foregoing features, the field effect transistor device is fabricated with enhanced performance.
摘要:
In one general aspect, a system for aseptically filling a tray of pharmaceutical containers with a pharmaceutical product is disclosed, which consists of an aseptic chamber, one or more articulated arms within the chamber, a sensor aseptically disposed with respect to the chamber, and a controller. The controller determines the locations of openings of the containers based on the image information from the sensor, and automatically guides one of the arms to fill the containers with the product. In order to obtain suitable contrast for accurately identifying the openings, an illuminator illuminates the tray with substantially collimated light. The sensor images the tray and containers using collimated light reflected from a reflective surface such as a retroreflector under the tray. To this end, the sensor may be disposed at a large enough distance from the retroreflector to collect largely the retroreflected light, or the sensor may employ a telecentric lens or a Fresnel lens. Further articulated arms move the tray and stopper the containers.
摘要:
A preferred embodiment of the invention provides a semiconductor fabrication method. An embodiment comprises forming a MOS device and thermally oxidizing the MOS device to form a gate dielectric substantially thicker at a gate dielectric edge than that at a gate dielectric center. Embodiments further comprise performing a source/drain ion implant to form an asymmetric source/drain, wherein the source region includes a high leakage source junction, and wherein the drain region includes a low leakage drain junction. Other embodiments of the invention comprise a MOS device formed in a semiconductor substrate, wherein the device has improved resistance to floating body effects. Still other embodiments include a CMOS device for low power integrated circuits.
摘要:
A throttle potentiometer adapter provides a direct connection between a pivot nut on a hand throttle linkage and the internal sleeve of a potentiometer. The potentiometer provides a voltage output to an electronic controller, the voltage output corresponding to the position of the hand throttle. The adapter is of one-piece construction and includes a socket engaging the pivot nut and a shaft extending into the internal sleeve.
摘要:
A garage door is connected to a track extending from a front wall of the garage to a side wall within the garage. The garage door is horizontally moveable along the track, such as with a chain-driven mechanism, from a generally closed position within the garage vehicle entrance of the garage to a generally open position away from the garage vehicle entrance and disposed adjacent to a side wall of the garage. A second horizontally moving garage door may be used in conjunction with the first garage door to cooperatively close the garage vehicle entrance.
摘要:
The present invention discloses a system for reducing a leakage current of an integrated circuit coupled to a supply voltage source. The system includes a bias module, and a switch device serially coupled between the bias module and the integrated circuit. The bias module generates a bias voltage and the switch device is turned off for reducing the leakage current of the integrated circuit when the integrated circuit is in a sleep mode.
摘要:
An acoustic guitar is fitted with a fingering display embedded in its fretboard. A fingering-display processor with tempo control allows a user to select a tune to practice and the speed of tempo to use. The user is progressively shown where to finger each successive note and chord in a tune. A fingering extraction processor downloads fingering patterns that have been discerned from input tunes that are whistled, hummed, played on another instrument, or performed by an orchestra. A microphone is used to capture ambient sounds, and an electronic audio input is used to collect recorded or broadcast performances. The fingering extraction processor is implemented with a digital signal processor that samples analog audio inputs. Such inputs are filtered for noise and interstitial breaks indicating start-end of play. Orchestral performances are filtered by voice to create a guitar fingering arrangements. The fingering extraction processor can be collocated with the fingering display processor. And the fingering display processor can be attached to or integrated within a guitar.
摘要:
A semiconductor structure including SRAM cells with improved write margins and a method for forming the same are provided. The semiconductor structure comprises a substrate including a core circuit and an SRAM cell. The SRAM cell includes a pull-up PMOS device that comprises a first source/drain region in the substrate, a first SiGe stressor having a portion overlapping at least a portion of the first source/drain region, and a first current-tuning region having a portion overlapping at least a portion of the first source/drain region. The core circuit comprises a core PMOS device that comprises a second source/drain region in the substrate, and a second SiGe stressor having a portion overlapping at least a portion of the second source/drain region. The core PMOS device is free of current-tuning regions.