Abstract: An apparatus for racket sports practice (such as tennis, pickle ball, padel, squash, racquet ball, table tennis and the like) is disclosed. The apparatus being comprised of a tubular frame, lightweight cloth, a swivel bounce board and unique side shields that prevent balls from straying. The curved area of the rebound sheet allows users to hit balls into the apparatus and have them returned at various speeds and angles. The apparatus being of such a size that, when broken down after practice, can be easily transported by a single person. An object of the invention is to provide an affordable means for racket sports enthusiasts to practice independently.

Abstract: The Single Assembly Sports Net Master Frame (also referred to as a portable golf ball return apparatus) that supports existing nets is disclosed. The invention is comprised of a portable golf ball return apparatus having several parts: a first part being a central hub; a second part being a lower frame with telescoping arms and the third part being the outer arms—which connect to these subsequent parts which are not included in the invention; being vertical rods to support the net; and the base mat. An object of the invention is to allow existing golf ball return nets to be supported by a quickly collapsible, support frame that is foldable and compact for transportation based on a single assembly.

Abstract: Version circuitry for use with a semiconductor chip having multiple layers includes multiple status bits. The versioning circuitry includes, for each status bit, gate circuitry, first selector circuitry in a first layer, and second selector circuitry in a second layer. The gate circuitry generates a value for the status bit based at least on a first input and a second input. The first selector circuitry is coupled to the gate circuitry and is configured to select a value for the first input. The second selector circuitry is coupled to the gate circuitry and is configured to select a value for the second input. The gate circuitry generates a default value for the status bit when the first input and the second input each have a default value and generates an opposite value for the status bit when either the first input or the second input has an opposite value.

Abstract: Version circuitry for use with a semiconductor chip having multiple layers includes multiple status bits. The versioning circuitry includes, for each status bit, gate circuitry, first selector circuitry in a first layer, and second selector circuitry in a second layer. The gate circuitry generates a value for the status bit based at least on a first input and a second input. The first selector circuitry is coupled to the gate circuitry and is configured to select a value for the first input. The second selector circuitry is coupled to the gate circuitry and is configured to select a value for the second input. The gate circuitry generates a default value for the status bit when the first input and the second input each have a default value and generates an opposite value for the status bit when either the first input or the second input has an opposite value.

Abstract: An emulsion composition for use as potentiator in a soluble liquid herbicide formulation comprising a natural oil-based ester, a hydrophilic surfactant, a lipophilic surfactant, a natural oil-based ethanol amide co-surfactant and a natural oil-based glyceride ethoxylate co-surfactant.

Abstract: A fiberboard comprising dried plant fibers added with binder resins obtained from a reaction between a diisocyanate and a polyol derived from natural oils or fatty acids, and formed by pressing at a temperature range of 50° C. to 150° C.

Abstract: A fibreboard comprising dried plant fibres added with binder resins obtained from a reaction between a diisocyanate and a polyol derived from natural oils or fatty acids, and formed by pressing at a temperature range of 50° C. to 150° C.

Abstract: Subterranean oilfield sensor systems and methods are provided. The subterranean oilfield sensor systems and methods facilitate downhole monitoring and high data transmission rates with power provided to at least one downhole device by a light source at the surface. In one embodiment, a system includes uphole light source, a downhole sensor, a photonic power converter at the downhole sensor, an optical fiber extending between the uphole light source and the photonic power converter, and downhole sensor electronics powered by the photonic power converter. The photonic power converter is contained in a high temperature resistant package. For example, the high temperature resistant package and photonic power converter may operate at temperatures of greater than approximately 100° C.

Abstract: Hybrid electrical-optical telemetry systems and methods are disclosed. The methods and systems facilitate faster data transmission rates between the surface and downhole tools and sensors. The methods and systems may also include a downhole electrical bus for inter-tool and intra-tool communication to facilitate limited changes to existing downhole equipment. Some embodiments of the hybrid electrical-optical telemetry system include a light source at the surface and a downhole modulator. Some embodiments also include redundant, selectable optical systems. The methods and systems may operate via a single optical input/output cable.

Abstract: Single fiber optical telemetry systems and methods are disclosed. The methods and systems facilitate input and output via a single fiber optic interface. The optical telemetry systems and methods also facilitate faster data transmission rates between surface and downhole equipment in oilfield applications.

Abstract: A process for the recovery of carotenes and the production of carotene concentrate from natural oils and fats. The carotene-containing natural oils and fats is subjected to alcoholic esterification to form a mixture of fatty acid alkyl esters, carotenes, tocopherols and tocotrienols. The alkyl esters mixture is subjected to vacuum distillation at a pressure of less than 60 mTorr and a temperature of less than 180.degree. C. to form a carotene-rich concentrate. The carotenes in the carotene-rich concentrate are adsorptively separated, concentrated and collected as carotene-rich fraction.