Abstract: A host system initiates an abort of a command that has been placed into a submission queue (SQ) of the host system. The host system identifies at least one of a first outcome and a second outcome. When the first outcome indicates that the command is not completed and the second outcome indicates that the SQ entry has been fetched from the SQ, the host system sends an abort request to a storage device, and issues a cleanup request to direct the host controller to reclaim host hardware resources allocated to the command. The host system adds a completion queue (CQ) entry to a CQ and sets an overall command status (OCS) value of the CQ entry based on at least one of the first outcome and the second outcome.

Abstract: A gun aiming device includes a base body, an aimer, a first and second rotating adjuster and an elastic blade. The positioning base body has a through hole. The aimer installs in the through hole. A first plane disposes on the aimer's one side. A second plane disposes on a side of the aimer perpendicular to the first plane. The first rotating adjuster penetrates the positioning base body's one side and the first rotating adjuster's distal end abuts against the first plane. The second rotating adjuster penetrates the positioning base body's one side and the second rotating adjuster's distal end abuts against the second plane. The elastic blade disposes in the through hole and the elastic blade's distal end abuts against the aimer. The elastic blade locates on a side corresponding to the first and second rotating adjusters to jointly achieve three-point supporting and positioning of the aimer.

Abstract: A gun having a gas cartridge retaining device comprises a gun device having a hand grip, and a gas cartridge retaining device disposed at the bottom of the hand grip. The hand grip has a cartridge holding chamber for receiving a gas cartridge. Pull up a camshaft lever of a gas cartridge retaining device to push the upper piston element upwardly, such that the gas cartridge is retained in a gun. Pull open the camshaft lever to release the upper piston element, such that the gas cartridge can be taken off. In this way, the gas cartridge can be installed or detached from the gun quickly.

Abstract: A collapsible bicycle includes a handlebar, a tubular portion, a front wheel portion, a saddle portion, a first frame, a second frame, a rear wheel portion, and supporting coasters. The saddle portion has a rod body. The rod body is fixed obliquely on one end of the second frame, and the other end of the second frame is rotatably pivoted on the tubular portion. One end of the first frame is rotatably pivoted with a clamping element on the tubular portion, and a middle portion of the second frame is rotatably pivoted on a middle portion of the first frame. A supporting element extends from the end of the first frame near the rear wheel portion allowing supporting the collapsible bicycle.

Abstract: A gun having a gas cartridge retaining device comprises a gun device having a hand grip, and a gas cartridge retaining device disposed at the bottom of the hand grip. The hand grip has a cartridge storing groove for receiving a gas cartridge. Pull up a camshaft lever of a gas cartridge retaining device to push the pushing portion rising, such that the gas cartridge is retained in a gun. Pull open the camshaft lever to release the pushing portion, such that the gas cartridge can take off. In this way, the gas cartridge can be install or detached from the gun quickly.

Abstract: A shield device for an exhaust pipe includes a socket, a shield board and a fastening device. The socket defines a connecting portion extending crookedly downwards from two ends thereof The socket is attached onto the exhaust pipe by the connecting portion. A shield board defines a shield piece and a plug. A fastening portion extends backwards from the shield piece. The plug is set on the inside wall of the shield piece, and the fastening device is set on the fastening portion of the shield piece. The shield board is attached onto the exhaust pipe by inserting the plug into the socket and fixing the fastening device onto the exhaust pipe. The shield device is easily assembled, its appearance is attractive, and the shield device and the exhaust pipe are integrated together stably. The shield device isn't prone to shaking, noise is reduced, and its life-span is protracted.

Abstract: An exhaust pipe structure improvement includes a bifurcation pipe, a first muffling pipe, a second muffling pipe, a control device and a heat-insulating block. One end of the bifurcation pipe is divided into a first branch pipe and a second branch pipe, the first muffling pipe and the second muffling pipe are separately connected with the first branch pipe and the second branch pipe of the bifurcation pipe, the second muffling pipe has a valve piece therein. The control device is installed on one side of the second muffling pipe for controlling the valve piece to open or close an exhaust section of the second muffling pipe, and the heat-insulating block is clipped between the control device and the second muffling pipe for controlling the control device without easily being burnt out and effectively controlling exhaust volume of the exhaust pipe so as to increase practicability of the exhaust pipe.