摘要:
A flade exhaust nozzle for a high thrust jet engine is configured to form an acoustic shield around the core engine exhaust flowstream while supplementing engine thrust during all flight conditions, particularly during takeoff. The flade airflow is converted from an annular 360.degree. flowstream to an arcuate flowstream extending around the lower half of the core engine exhaust flowstream so as to suppress exhaust noise directed at the surrounding community.
摘要:
This invention relates to a vehicle brake lighting system having a novel brake delay lighting system utilized with a conventional vehicle brake lighting system. The conventional vehicle brake lighting system includes a battery member being a power source connected through a brake pedal switch to brake light members. Depression of a brake pedal closes the brake pedal switch to energize the brake light members in a conventional manner. The brake delay lighting system includes a delay timer member which is interconnected by a timer circuit means to the conventional vehicle brake lighting system. The delay timer member is operable on release of contact with the brake pedal and opening of the brake pedal switch to provide for the continued illumination of the brake light members for a set time period such as plus or minus eight seconds. The brake delay lighting system is provided with a fail-safe system so that the conventional vehicle brake lighting system continues to operate in a normal conventional manner even on mechanical or electrical failure of the brake delay lighting system. The brake delay lighting system automatically resets to zero if the brake pedal is depressed during a timing cycle and again times out after release of the brake pedal for the full time cycle.
摘要:
Pig-iron is refined into steel by blowing oxygen and a protective screen of an encasing gas through injecting means located at or near the bottom of a converter containing a melt of molten metal. The encasing gas while protecting the injecting means, allows it to be consumed at substantially the same rate as the bottom of the converter so that the injecting means is not left projecting from the bottom of the converter. The encasing gas can be one which is inert to the melt or the metal of the injecting means or both, or it can be a gas which reacts sluggishly with the melt or the material of the oxygen feed pipe or both. Desirably, the oxygen jet is circular in cross-section and the encasing gas is in the form of a concentric jet.A converter for carrying out the method is made up of a pear-shaped sheet-steel casing having a refractory lining and an inserted bottom provided with nozzles in the form of metal tubes for the oxygen and encasing gas. Preferably, a substantial portion (for example about half) of the converter bottom is free of nozzles. The nozzles can be arranged in groups and there can be rows running parallel with the tilting axis of the converter. The nozzles may also be arranged to cause circulation of the molten metal in the converter. The nozzles can be constructed to provide for swirling movement of the encasing gas. Examples of encasing gas which may be used are hydrogen, nitrogen, noble-gases, carbon monoxide, carbon dioxide, ammonia, hydrogen-fluoride, furnace-mouth gas, coke-oven gas, natural gas and other gases containing hydrocarbons.
摘要:
In various example embodiments, a system and method for data mesh visualization are presented. Attribute data associated with a user may be received from a plurality of attribute sources. User characteristics may be inferred based on an analysis of at least a portion of the attribute data. A visualization may be generated based, at least in part, on the user characteristics. The visualization may be representative of the attribute data. The visualization may be caused to be presented to the user.
摘要:
A system and method for data mesh-based zero effort shopping is provided. In example embodiments, attribute data associated with a user is received from a plurality of attribute sources. Demand indications are extracted from the attribute data. The demand indications may be indicative of anticipatory demand by the user for a particular item. An item is identified from the attribute data based on the extracted demand indications. User characteristics pertaining to the user are inferred from the attribute data. A purchase associated with the identified item is facilitated based, at least in part, on the user characteristics.
摘要:
An orthodontic appliance may include an archwire and multiple orthodontic brackets. The archwire may fit within a human mouth and contain multiple male connectors. Each orthodontic bracket may have a configuration that facilitates attaching the orthodontic bracket to a single tooth. Each orthodontic bracket may allow one of the male connectors to be locked into the orthodontic bracket with a snapping action. The male connector may be unable to slide with respect to the orthodontic bracket after being locked in the orthodontic bracket. A manual unlocking action may allow the male connector to disengage from the orthodontic bracket.
摘要:
Compressible and concentrated suspensions containing gas-filled microbubbles, uses thereof for delivering gas into a subject in need thereof, and systems for delivering the compressible suspensions. The gas-filled microbubbles each comprise a gas core surrounded by a lipid membrane, which includes (a) one or more lipids, such as 1,2-disteroyl-sn-glycero-3-phosphocholine (DSPC) or dipalmitoylphosphatidylcholine (DPPC), and (b) one or more stabilizing detergents, such as poloxamer 188, Pluronic F108, Pluronic F127, polyoxyethylene (100) stearyl ether, cholesterol, gelatin, polyvinylpyrrolidone (PVP), and sodium deoxycholate (NaDoc).
摘要:
The present invention relates to a holder for items such as a cane or umbrella which attaches to a wheelchair or walker to allow easy access to the items when required for use. The present invention provides a utility holder comprising a tubular body extending vertically with a hollowed center, an opening at a top portion of the tubular body where the opening enables the tubular body to accept an elongated item, a cap attached to a base of the tubular body, and a set of attachment means affixed to the tubular body wherein the set of attachment means enable the tubular body to attach to a mobility assistance device and carry the elongated item.
摘要:
An interface system includes a first driver module that communicates through a bus with a first peripheral card when the bus is in a first mode. A second driver module communicates through the bus with a second peripheral card when the bus is in a second mode. A bus control module receives a communication notification signal from the second peripheral card when the first peripheral card is communicating with the first driver module. The communication notification signal does not interfere with the communication of the first peripheral card and the first driver module. The bus control module switches the bus between first and second modes in response to the communication notification signal.
摘要:
Systems and methods for settling credit default swap contracts upon occurrence of a credit event are provided. In the first stage an inside market price and imbalance between net sell and buy positions are determined. When there is an imbalance between net sell and buy positions, a second stage is employed to determine a final price for settling the imbalance.