Abstract: A system for simulating operation of a stringed instrument using a combination of water and light steams. The system includes a nozzle configured for outputting a falling laminar water stream. The system includes a light transmitter configured to inject light into a first end of the water stream and a light receiver configured to receive the light injected into the water stream and, in response, generate a signal. The system includes a controller configured for processing the signal and, in response to a lack of the signal, for operating an audio system to play a musical note or audio file. The system may include an optical fiber with a first end proximate to the nozzle oriented to receive the light injected into the water stream at the second end of the water stream, and the light receiver can be a photodetector coupled to the second end of the optical fiber.

Abstract: A disclosed apparatus may include (1) a retractable guide rail movably coupled to a chassis, wherein the retractable guide rail is configured to support a field-replaceable unit when the field-replaceable unit is installed in the chassis, (2) a support bracket coupled to the chassis and aligned with the retractable guide rail within the chassis, and (3) a locking bracket movably coupled to the support bracket, wherein the locking bracket is configured to (A) engage the retractable guide rail in an expanded position within the chassis when the field-replaceable unit is not installed in the chassis and (B) disengage the retractable guide rail such that the retractable guide rail moves to a retracted position when the field-replaceable unit is installed in the chassis. Various other apparatuses, systems, and methods are also disclosed.

Abstract: A disclosed apparatus may include (1) a retractable guide rail movably coupled to a chassis, wherein the retractable guide rail is configured to support a field-replaceable unit when the field-replaceable unit is installed in the chassis, (2) a support bracket coupled to the chassis and aligned with the retractable guide rail within the chassis and (3) a locking bracket movably coupled to the support bracket, wherein the locking bracket is configured to (A) engage the retractable guide rail in an expanded position within the chassis when the field-replaceable unit is not installed in the chassis and (B) disengage the retractable guide rail such that the retractable guide rail moves to a retracted position when the field-replaceable unit is installed in the chassis. Various other apparatuses, systems, and methods are also disclosed.

Abstract: A disclosed apparatus may include (1) a retractable guide rail movably coupled to a chassis, wherein the retractable guide rail is configured to support a field-replaceable unit when the field-replaceable unit is installed in the chassis, (2) a support bracket coupled to the chassis and aligned with the retractable guide rail within the chassis and (3) a locking bracket movably coupled to the support bracket, wherein the locking bracket is configured to (A) engage the retractable guide rail in an expanded position within the chassis when the field-replaceable unit is not installed in the chassis and (B) disengage the retractable guide rail such that the retractable guide rail moves to a retracted position when the field-replaceable unit is installed in the chassis. Various other apparatuses, systems, and methods are also disclosed.

Abstract: Methods of treating eyelid swelling in a subject comprising administering to the ocular surface of the subject an effective amount of glycerol and naphazoline. The glycerol can be present at a concentration of about 7.5% w/v and the naphazoline can be present at a concentration of about 0.01% to about 0.5% w/v. The compositions do not comprise an antihistamine.

Abstract: The invention features topical formulations comprising an osmotically active agent and/or a vasoconsgtrictor and/or an astringent agent for the treatment and prevention of eyelid swelling, and methods of use thereof.

Abstract: The invention features topical formulations comprising an osmotically active agent and/or a vasoconsgtrictor and/or an astringent agent for the treatment and prevention of eyelid swelling, and methods of use thereof.

Abstract: The invention features topical formulations comprising an osmotically active agent and/or a vasoconstrictor and/or an astringent agent for the treatment and prevention of eyelid swelling, and methods of use thereof.

Abstract: The invention features novel topical ophthalmic formulations comprising an osmotically active agent and a vasoconstrictor. Suitable osmotically active agents for use in the ophthalmic formulations of the invention include, without limitation, sodium chloride, dextrose, glycerine, sucrose, mannitol, and sorbitol; suitable vasoconstritors include, without limitation, naphazoline and oxymetazoline. Also provided are methods of using the ophthalmic formulations of the invention for the treatment and prevention of eyelid swelling by administering the ophthalmic formulations of the invention to the eye surface of a subject in need thereof.

Abstract: The invention features topical formulations comprising an osmotically active agent and/or a vasoconstrictor and/or an astringent agent for the treatment and prevention of eyelid swelling, and methods of use thereof.

Abstract: Nano-scale DMC catalyst complexes are highly active alkylene oxide polymerization catalysts. Thy show a greatly improved ability to catalyze the formation of EO-capping onto secondary hydroxyl-terminated polyethers. The catalysts can be prepared by precipitation in the dispersed adequous phase of a water-in-oil emulsion.

Abstract: The invention features topical formulations comprising an osmotically active agent and/or a vasoconstrictor and/or an astringent agent for the treatment and prevention of eyelid swelling, and methods of use thereof.

Abstract: A software system having a multi-layer architecture for controlling a hardware system including a latch layer, a hardware control layer, an access layer, and an orchestration layer. The latch layer includes a latch object for each of a set of control points of the hardware system. Each latch object provides a common interface in the software system for accessing the corresponding control point. The hardware control layer includes a hardware control object for each of a set of sub-portions of the hardware system. Each hardware control object coordinates accesses to the control points of the corresponding sub-portion through the latch layer. The access layer includes an access object for each of a set of groupings of the sub-portions. Each access object coordinates accesses to the corresponding grouping of the sub-portions. The orchestration layer includes an orchestration object for each of a set of functional features of the hardware system.

Abstract: A helical drive system for seating and unseating a removable component, such as a printed circuit board, into a slot is described. The helical drive system includes a receptacle fixed to a housing proximate the slot. A handle and drive shaft are attached to the printed circuit board. The drive shaft has a helical groove that mates with a pin included in the receptacle. Rotation of the drive shaft pulls the printed circuit board into the slot and fully seats the printed circuit board. Rotation in the other direction unseats the printed circuit board. The helical groove has an enlarged entry that terminates in one or more points. This configuration facilitates the automatic alignment of the pin with the helical groove.

Abstract: A cover fastening system for a boat, the system including a groove formed along a side of the boat. A plurality of expandable anchors is positionable within the groove. Also included are a plurality of fastening members, each fastening member including a threaded portion and a snap portion, the threaded portion of each fastening member being screwed within a respective anchor to expand and fix the anchor at a desired position along the groove, and the snap portion being adapted to engage a corresponding snap structure of a boat cover.

Abstract: A cover fastening system for a boat, the system including a groove formed along a side of the boat. A plurality of expandable anchors is positionable within the groove. Also included are a plurality of fastening members, each fastening member including a threaded portion and a snap portion, the threaded portion of each fastening member being screwed within a respective anchor to expand and fix the anchor at a desired position along the groove, and the snap portion being adapted to engage a corresponding snap structure of a boat cover.

Abstract: A cable manager is attached to a device, connected to a number of cables. The cables are engaged by the cable manager in order to appropriately guide and organize the cables. The cable manager is sized and positioned so that when in a normal operating position, certain components remain freely accessible. When so desired, a technician or other user can easily raise and secure the cable manager without disconnecting the cables, thereby moving the coupled cables out of the way of various components of the device. Thus, components obstructed by the cable manager when in the normal operating position can be accessed and serviced, or otherwise utilized.

Abstract: A software system having a multi-layer architecture for controlling a hardware system including a latch layer, a hardware control layer, an access layer, and an orchestration layer. The latch layer includes a latch object for each of a set of control points of the hardware system. Each latch object provides a common interface in the software system for accessing the corresponding control point. The hardware control layer includes a hardware control object for each of a set of sub-portions of the hardware system. Each hardware control object coordinates accesses to the control points of the corresponding sub-portion through the latch layer. The access layer includes an access object for each of a set of groupings of the sub-portions. Each access object coordinates accesses to the corresponding grouping of the sub-portions. The orchestration layer includes an orchestration object for each of a set of functional features of the hardware system.

Abstract: A tapered plug valve having a plug provided with a separate drive shaft and formed with a channel not connected to the plug but connecting the ends thereof to enable pressure equalization. The channel may be formed by being directly drilled through the plug, or comprise a tube, secured in position by welding in a groove cast in the outer surface of the plug. A non return valve is positioned in the channel to limit pressure equalization from the wider end to the smaller end of the plug.

Abstract: A multichannel automatic test system for an electronic circuit utilizes a "true tester-per-pin" architecture; each channel of the tester operates as if it were an independent tester. Each channel of the tester has a memory circuit which stores instructions for operating that channel of the tester. Each of these memories is cycled to the next address to provide a new instruction for that channel, only when it is necessary to change the state of operation of that channel. Thus, the timing of the events on one channel are independent of the timing on the events of any other channel in the tester. The architecture permits the use of dynamic random access memory (DRAM) circuits and allows for backward looping in the test sequence through the use of a cache memory circuit in each channel. The instructions for operating each channel of the tester are context-dependent; that is, the present state of operation of that channel of the tester is utilized in interpreting the next instruction for that channel.