Abstract: An aircraft may include a control lever movable along a lever path and configured to control a system of the aircraft, and a selectively engageable detent feature configured to inhibit travel of the control lever and operable in a disengaged configuration in which the control lever is movable along the lever path without restriction by the selectively engageable detent feature, and an engaged configuration in which the selectively engageable detent feature inhibits travel of the control lever at a particular location along the lever path.

Abstract: An aircraft may include a control lever movable along a lever path and configured to control a system of the aircraft, and a selectively engageable detent feature configured to inhibit travel of the control lever and operable in a disengaged configuration in which the control lever is movable along the lever path without restriction by the selectively engageable detent feature, and an engaged configuration in which the selectively engageable detent feature inhibits travel of the control lever at a particular location along the lever path.

Abstract: An aircraft may include a control lever movable along a lever path and configured to control a system of the aircraft, and a selectively engageable detent feature configured to inhibit travel of the control lever and operable in a disengaged configuration in which the control lever is movable along the lever path without restriction by the selectively engageable detent feature, and an engaged configuration in which the selectively engageable detent feature inhibits travel of the control lever at a particular location along the lever path.

Abstract: Systems, methods, and computer media are described for index-based join size estimation. For a join operation between two tables, a filter is applied to the first table, resulting in a filter output. The filter output is then sampled. For each sample, an index for a second table is accessed and counts of records in the second table that match the sample are retrieved. Using the sample size and the retrieved counts from the index of the second table, a data size for the join operation can be efficiently and accurately estimated. Statistical confidence in the estimate can also be assessed using variance-based calculations.

Abstract: Systems, methods, and computer media are described for index-based join size estimation. For a join operation between two tables, a filter is applied to the first table, resulting in a filter output. The filter output is then sampled. For each sample, an index for a second table is accessed and counts of records in the second table that match the sample are retrieved. Using the sample size and the retrieved counts from the index of the second table, a data size for the join operation can be efficiently and accurately estimated. Statistical confidence in the estimate can also be assessed using variance-based calculations.

Abstract: A testing apparatus includes a chamber, having an interior maintained at a predetermined pressure, a rotor rotatably disposed within the interior of the chamber, and a sensor disposed within the interior of the chamber. When the rotor rotates, the at least one sensor measures a testing characteristic of an object disposed within the interior of the chamber as the object interacts with the rotating rotor. A method includes setting a predetermined pressure of a chamber, rotating a rotor, and maintaining a gap between a surface of an object to be tested and a surface of the rotor by adjusting, with an actuator, the object to be tested or the rotor based upon a change, as measured by a laser, in the dimension of the object to be tested or the rotor.

Abstract: A structure having at least one flexible material structured and arranged to withstand a tensile load, at least one support structure configured to support the flexible material and structured and arranged to withstand a compressive load, and at least one enclosed volume at least partially defined by the at least one flexible material, the at least one enclosed volume being configured to be maintained as a low-pressure environment.

Abstract: A testing apparatus includes a chamber, having an interior maintained at a predetermined pressure, a rotor rotatably disposed within the interior of the chamber, and a sensor disposed within the interior of the chamber. When the rotor rotates, the at least one sensor measures a testing characteristic of an object disposed within the interior of the chamber as the object interacts with the rotating rotor. A method includes setting a predetermined pressure of a chamber, rotating a rotor, and maintaining a gap between a surface of an object to be tested and a surface of the rotor by adjusting, with an actuator, the object to be tested or the rotor based upon a change, as measured by a laser, in the dimension of the object to be tested or the rotor.

Abstract: A locking mechanism in a delta-store-based database to support long running transactions across multiple RID spaces is described. An example method includes establishing a column-based in-memory database including a main store and a delta store. A delete or an update statement is executed with a transaction on a table having plurality of table versions. The table versions are represented by bitmaps in the delta store and the bitmaps and table fragments corresponding to the table versions implement RID spaces for the table. A lock on a row of the table manipulated by the delete or the update statement is requested to preclude other transaction from deleting or updating an obsolete version of data. Upon a successful validation that the row to be locked is not the obsolete version in the RID spaces of the table, a lock is granted to the transaction.

Abstract: A locking mechanism in a delta-store-based database to support long running transactions across multiple RID spaces is described. An example method includes establishing a column-based in-memory database including a main store and a delta store. A delete or an update statement is executed with a transaction on a table having plurality of table versions. The table versions are represented by bitmaps in the delta store and the bitmaps and table fragments corresponding to the table versions implement RID spaces for the table. A lock on a row of the table manipulated by the delete or the update statement is requested to preclude other transaction from deleting or updating an obsolete version of data. Upon a successful validation that the row to be locked is not the obsolete version in the RID spaces of the table, a lock is granted to the transaction.

Abstract: An apparatus, system and method for a go/no go tester that uses various data patterns to assure that equipments, systems and networks using data links, receivers and transmitters are working within the range of predetermined requirements of standards, specifications and protocols. The apparatus, system and methods can be used in at least one of SAS/SATA and Fiber Channel systems based on integrated circuit devices used within the apparatus of the invention.

Abstract: A paintball has one or more dimples or depressions formed on the outer surface of the paintball. In some embodiments, the depressions can have a uniform or non-uniform shape and be spaced equally about the circumference of the paintball. In some embodiments, each depression may provide increased lift and/or fragility to the paintball.

Abstract: A paintball has one or more dimples or depressions formed on the outer surface of the paintball. In some embodiments, the depressions can have a uniform or non-uniform shape and be spaced equally about the circumference of the paintball. In some embodiments, each depression may provide increased lift and/or fragility to the paintball.

Abstract: The present invention contemplates a novel and unique pneumatic paintball marker with a variety of novel features the first being an on/off compressed air control valve at the front of the marker below the barrel adjacent to the inline pressure regulator. Major innovations have been made in reducing the size and weight of the body of the marker along with the construction of the new fuse bolt assembly consisting of just four components and only one moving part. An anti-chop eye electronic system insures the paintballs are in the proper position with the addition of rubber ball detents to hold the paintballs in place so that they will not roll out the barrel prior to firing the marker.

Abstract: The present invention is directed to a unique small electronic audio timing device that attaches within a goggle system, helmet, or any other face or head-covering unit. The device is mounted adjacent to one or both ears and is to be activated at the beginning of a game or event. At set intervals throughout the game or event the device gives an audio indication of the remaining time of the game or event. The audio is generated by means of an integrated circuit voice synthesizer within the device. The device also contains a liquid crystal display that provides a visual image for initially setting the time sequence, which is activated though the pressing of a start/stop button and a timer set button.