Abstract: An airfoil (10) for a gas turbine engine in which the airfoil (10) includes an internal cooling system (14) with one or more internal cavities (16) having an insert (18) contained therein that forms nearwall cooling channels (20) having enhanced flow patterns is disclosed. The flow of cooling fluids in the nearwall cooling channels (20) may be controlled via a plurality of cooling fluid flow controllers (22) extending from the outer wall (24) forming the generally hollow elongated airfoil (26). The cooling fluid flow controllers (22) may be collected into spanwise extending rows (28), and the internal cooling system (14) may include one or more bypass flow reducers (30) extending from the insert (18) toward the outer wall (24) to direct the cooling fluids through the channels (20) created by the cooling fluid flow controllers (22), thereby increasing the effectiveness of the internal cooling system (14).

Abstract: An airfoil (10) for a gas turbine engine in which the airfoil (10) includes an internal cooling system (14) with one or more internal cavities having an insert (18) contained within an aft cooling cavity (76) to form nearwall cooling channels having enhanced flow patterns is disclosed. The flow of cooling fluids in the nearwall cooling channels may be controlled via a plurality of cooling fluid flow controllers (22) extending from the outer wall (24) forming the generally hollow elongated airfoil (26). The cooling fluid flow controllers (22) may be collected into spanwise extending rows. In at least one embodiment, the cooling fluid flow controllers (22) may be positioned within a pressure side nearwall cooling channel (48) and a suction side nearwall cooling channel (50) that are both in fluid communication with a trailing edge channel (30). The trailing edge channel (30) may also include cooling fluid flow controllers (22) extending between the outer walls (12, 13) forming the pressure and suction sides.

Abstract: An airfoil (10) for a gas turbine engine in which the airfoil (10) includes an internal cooling system (14) with one or more internal cavities (16) having an insert (18) contained therein that forms nearwall cooling channels (20) having enhanced flow patterns is disclosed. The flow of cooling fluids in the nearwall cooling channels (20) may be controlled via a plurality of cooling fluid flow controllers (22) extending from the outer wall (24) forming the generally hollow elongated airfoil (26). The cooling fluid flow controllers (22) may be collected into spanwise extending rows (28), and the internal cooling system (14) may include one or more bypass flow reducers (30) extending from the insert (18) toward the outer wall (24) to direct the cooling fluids through the channels (20) created by the cooling fluid flow controllers (22), thereby increasing the effectiveness of the internal cooling system (14).

Abstract: An Advanced Biopsy Needle is disclosed that provides both fine needle aspiration and core biopsy with a single insertion, thus reducing trauma and pain to the patient. An inner needle for aspiration and an outer needle for core biopsy are in coaxial relation to each other, thus providing both histology and cytology functions with a single medical device and also with a single insertion. Lateral cutting edges along fenestration openings in the outer needle ensure that adequate tissue samples are taken. A syringe is attached to the inner needle for collection of aspirate.

Abstract: A vehicle indicator system includes a sensor provided on a base vehicle to measure a distance of an adjacent vehicle from the base vehicle, and an indicator provided on the base vehicle at a position to emit an indicator signal displayed towards the adjacent vehicle, which indicator signal can be ascertained by an operator of the adjacent vehicle. An intensity of the indicator signal is inversely proportional to a distance of the adjacent vehicle from the base vehicle. The vehicle indicator system also includes circuitry provided at the base vehicle and configured to receive an input signal from the sensor and to provide an output signal to the indicator for generating the indicator signal.

Abstract: A vehicle indicator system includes a sensor provided on a base vehicle to measure a distance of an adjacent vehicle from the base vehicle, and an indicator provided on the base vehicle at a position to emit an indicator signal displayed towards the adjacent vehicle, which indicator signal can be ascertained by an operator of the adjacent vehicle. An intensity of the indicator signal is inversely proportional to a distance of the adjacent vehicle from the base vehicle. The vehicle indicator system also includes circuitry provided at the base vehicle and configured to receive an input signal from the sensor and to provide an output signal to the indicator for generating the indicator signal.

Abstract: The invention provides a dust repellant and anti-reflective inorganic coating and the method for preparing the coating. The dust repellant and anti-reflective inorganic coating includes nano-porous silica (SiO2) network of about 5 nm to about 35 nm and is characterized by cracks. The method of preparing the dust repellant and anti-reflective inorganic coating on a substrate includes mixing of aqueous SiO2 solution with a solvent. The aqueous SiO2 solution with the solvent is stirred to form a solution. The solution is coated on the substrate to form a film on the surface of the substrate. Thereafter, the film is annealed by heating the film to a temperature of about 500° C. to about 700° C. within a period of about 2 minutes to about 2 hours. Finally, the film is allowed to cool down.

Abstract: A keyboard system with changeable key displays includes a keyboard having multiple keys, each key having a transparent housing and a display panel disposed inside the transparent housing. The display panels are capable of displaying different indicia based on different control signals triggered by a user of the keyboard system. The keyboard system includes a printed circuit board (PCB) membrane connected to each display panel using one or more connectors, such as spring loaded pins, solid connectors, or flexible connectors. The PCB membrane receives data signals relevant to the indicia of the key displays and processes the data signals for display of the indicia by the display panels.

Abstract: A hydrocarbon feedstock is hydrocracked in a hydrocracking zone and the effluent is fractioned to recover a light fraction, a middle fraction containing aromatic compounds and a heavy fraction. The heavy fraction is recycled to the hydrocracking zone for further hydrocracking. The middle fraction is introduced to an aromatic separation zone. A product stream is recovered from the aromatic separation zone comprising a middle fraction having a reduced content of aromatic compounds as compared to the middle fraction recovered from the fractionator. Aromatics from the aromatic separation zone are recycled to the hydrocracking zone for further hydrogenation and cracking.

Abstract: An Advanced Biopsy Needle is disclosed that provides both fine needle aspiration and core biopsy with a single insertion, thus reducing trauma and pain to the patient. An inner needle for aspiration and an outer needle for core biopsy are in coaxial relation to each other, thus providing both histology and cytology functions with a single medical device and also with a single insertion. Lateral cutting edges along fenestration openings in the outer needle ensure that adequate tissue samples are taken. A syringe is attached to the inner needle for collection of aspirate.

Abstract: A method for temporarily protecting a hard surface by selecting a surface, applying a dose of liquid solution on the selected surface, waiting for the dose of liquid solution to solidify into a sheet, and removing the sheet from the surface. At least one dose of liquid solution is stored in a solid form in a container, and the sheet of solidified material can be removed by peeling.

Abstract: An airfoil for a gas turbine engine in which the airfoil includes an internal cooling system formed from one or more midchord cooling channels with a corrugated insert positioned therein and creating nearwall leading edge, pressure side and suction side nearwall cooling channels.

Abstract: A system and a method for applying 13C or 1H NMR spectroscopy to a sample of crude oil in order to calculate the cetane number, pour point, cloud point, aniline point and octane number of a gas oil fraction of the crude oil.

Abstract: The invention provides method for preparing an epoxy-carbon nanomaterial coating which includes a base of a two-pack epoxy coating material, a hardener of the two-pack epoxy coating material and about 0.0125 wt % to about 0.2 wt % of carbon nanomaterial. The invention also provides a method for preparing the epoxy-carbon nanomaterial coating. More specifically, the invention provides a method for preparing epoxy based coating materials as anti-corrosive coating composition.

Abstract: The invention provides a method for preparing an epoxy based coating composition. The method includes preparing a first dispersion including one or more colorants, one or more fillers and an epoxy based paint work material dispersed in a first portion of one or more solvents. The first dispersion is prepared by dispersing the one or more colorants and the one or more fillers in the epoxy based paint work material dispersed in the first portion of the one or more solvents. The method further includes preparing a second dispersion including one or more types of carbon nanotubes, a second portion of the one or more solvents and a hardener. The second dispersion is prepared by dispersing the one or more types of carbon nanotubes and the second portion of the one or more solvents in the hardener. Additionally, the method includes mechanically mixing the first dispersion and the second dispersion.

Abstract: The invention is related to a building block for use in interlocking with a plurality of similar building blocks for constructing a building. The building block includes a front face, a rear face, an upper face, a lower face, a first end and a second end. The building block also includes at least one substantially vertical hollow (web) and at least one substantially horizontal channel, wherein the at least one horizontal channel is disposed along one of the upper face and the lower face. In addition, each of the first end and the second end includes at least one header face, wherein at least one the header face can be one of a substantially planar face, a male header face and a female header face. Each of the male header face and the female header face includes one or more patterns for interlocking.

Abstract: The present disclosure relates to a computer-implemented method for electronic design visualization. The method may include providing, using at least one computing device, an electronic design and identifying a plurality of power domains associated with the electronic design. The method may further include associating, using the at least one computing device, at least two of the plurality of power domains with a particular group and displaying one or more of the plurality of power domains in a hierarchical manner.

Abstract: The invention provides a method for preparing a Polyurethane-Carbon Nanotube (PU-CNT) based coating composition. More specifically, the invention provides a method for preparing a PU-CNT based anti-corrosive coating composition. The method comprises preparing a dispersion comprising one or more types of Carbon Nanotubes (CNTs). The dispersion is prepared by dispersing the one or more types of CNTs in a dispersant comprising at least one polar solvent and at least one surfactant. The method further comprises mechanically mixing a hardener with the dispersion comprising the one or more types of CNTs. In addition, the method comprises mechanically mixing polyurethane with the dispersion prepared by mechanically mixing the hardener with the dispersion comprising the one or more types of CNTs.

Abstract: A surgical retractor designed for wounds and incisions located on curved areas of the body. The clamp assembly comprising the present surgical retractor comprises multiple hinges and other types of movable joints allowing it to be adjusted to any number of positions in order to conform to various areas of the body as well as wounds or incisions of different sizes. In particular, the clamp assembly can comprise hinges located in the middle of at least two of its sides allowing it to be bent into multiple angles both above and below the flat horizontal position allowed by nearly all existing surgical retractors. Multiple retracting hook assemblies can be mounted at various positions along the sides of the clamp assembly allowing the hook comprising each to hold tissue in a variety of positions as needed.

Abstract: Data communication systems and methods are described. In one aspect, data is communicated to a data receiver via a data communication network. An error discriminator receives a confirmation response from the data receiver indicating receipt of the data. A round-trip transmission time is determined for the data and used to predict network congestion associated with the data communication network. A data communication rate is adjusted if the predicted network congestion exceeds a threshold value.