Abstract: An auxiliary screening system and an auxiliary screening method for a hip joint of a baby are provided. The auxiliary screening method includes: collecting plural images of the hip joint; performing an image analysis operation on each of the images of the hip joint to extract plural image features of each of the images of the hip joint and determining whether each of the images of the hip joint is a standard image according to the image features of each of the images of the hip joint; and when at least one of the images of the hip joint is determined as the standard image, plural angle parameters are calculated and the at least one of the images of the hip joint that is determined as the standard image is outputted, in which the angle parameters include values of an angle ? and an angle ?.

Abstract: A transistor includes a first semiconductor layer, a second semiconductor layer, a semiconductor nanosheet, a gate electrode and source and drain electrodes. The semiconductor nanosheet is physically connected to the first semiconductor layer and the second semiconductor layer. The gate electrode wraps around the semiconductor nanosheet. The source and drain electrodes are disposed at opposite sides of the gate electrode. The first semiconductor layer surrounds the source electrode, the second semiconductor layer surrounds the drain electrode, and the semiconductor nanosheet is disposed between the source and drain electrodes.

Abstract: A nail positioning member of a nail slot of a nail gun includes a magazine including a horizontal nail slot connected with a perforation for nailing; a nail pushing piece slidably assembled to the nail slot; a plurality of horizontal slot channels parallel to the nail slot; and a plurality of positioning pieces, respectively pivotally assembled to the slot channels to block the head of the nails. The positioning piece forms a protruding portion in a movement path of the nail pushing piece, to be pushed by the nail pushing piece and to drive the positioning piece to oscillate in the direction of the slot channel in order to open the nail slot for placing the nails.

Abstract: A locking mechanism for a nail gun includes a side slot formed on a bottom side of a gun body and a nail supplying slot connected to a drive track of the nail gun. A stopper element is formed on a side of a slider element corresponding to the side slot. The gun also includes a magazine in which a nail pusher facing the nail supplying slot and a lockout element facing the side slot are formed. The nail pusher has an ear portion. The lockout element includes a pushing arm and a moveable guide slot capping with the ear portion to restrict the sliding movement of the lockout element on the nail pusher. As the pushing arm extends towards the corresponding end of the nail supplying slot, a nail is pushed into the drive track to shoot. The lockout element enters into the side slot to block the stopper element when the nail is exhausted, so as to enhance the shooting blocking effect of the nail gun.

Abstract: A locking mechanism for a nail gun includes a side slot formed on a bottom side of a gun body and a nail supplying slot connected to a drive track of the nail gun. A stopper element is formed on a side of a slider element corresponding to the side slot. The gun also includes a magazine in which a nail pusher facing the nail supplying slot and a lockout element facing the side slot are formed. The nail pusher has an ear portion. The lockout element includes a pushing arm and a moveable guide slot capping with the ear portion to restrict the sliding movement of the lockout element on the nail pusher. As the pushing arm extends towards the corresponding end of the nail supplying slot, a nail is pushed into the drive track to shoot. The lockout element enters into the side slot to block the stopper element when the nail is exhausted, so as to enhance the shooting blocking effect of the nail gun.

Abstract: A nail positioning member of a nail slot of a nail gun includes a magazine including a horizontal nail slot connected with a perforation for nailing; a nail pushing piece slidably assembled to the nail slot; a plurality of horizontal slot channels parallel to the nail slot; and a plurality of positioning pieces, respectively pivotally assembled to the slot channels to block the head of the nails. The positioning piece forms a protruding portion in a movement path of the nail pushing piece, to be pushed by the nail pushing piece and to drive the positioning piece to oscillate in the direction of the slot channel in order to open the nail slot for placing the nails.

Abstract: An auto-detection circuit for detecting video signals includes a reception end for receiving a video signal, a synchronization signal detector coupled to the reception end for generating a waveform according to voltage variation of the video signal, a peak value detector coupled to the synchronization signal detector for determining peak value of the wave form, a direct current voltage level switch coupled to the peak value detector for switching output voltage as first direct current voltage level or second direct current voltage level, and an output end coupled to the direct current voltage level switch for outputting the output voltage.

Abstract: An exemplary compressed air filter assembly for nail gun has an end cap at a handle of the nail gun, having an inlet aperture for guiding external compressed air therein, communicating with a main air chamber of the handle; an inlet pipe extending in the inlet aperture and the main air chamber, having a ring-shaped step formed at an inner peripheral surface of a sidewall thereof; and a filter disposed at the inlet pipe. At least one bar is provided at the sidewall of the inlet pipe, transversely disposed in the inlet aperture, and the filter being disposed between the at least one bar and the ring-shaped step. The compressed air filter assembly for nail gun utilize the at least one bar to support a center portion of the filter, which can improve the strength of the filter to resist the blasting of the compressed air.

Abstract: An exemplary compressed air filter assembly for nail gun has an end cap at a handle of the nail gun, having an inlet aperture for guiding external compressed air therein, communicating with a main air chamber of the handle; an inlet pipe extending in the inlet aperture and the main air chamber, having a ring-shaped step formed at an inner peripheral surface of a sidewall thereof; and a filter disposed at the inlet pipe. At least one bar is provided at the sidewall of the inlet pipe, transversely disposed in the inlet aperture, and the filter being disposed between the at least one bar and the ring-shaped step. The compressed air filter assembly for nail gun utilize the at least one bar to support a center portion of the filter, which can improve the strength of the filter to resist the blasting of the compressed air.

Abstract: A driver guiding set for a power nail gun includes a forward plate fixedly disposed at a bottom portion of the gun body, with a surface entirely being flat for supporting the striking blade from one side; a first rearward plate fixedly mounted to the forward plate for supporting the striking blade from the other side; a first magazine rail fixedly disposed on the first rearward plate; a second magazine rail slidably disposed on the first magazine rail; a second rearward plate fixedly mounted to the second magazine rail, which is capable of locating at a first position to engage with the first rearward plate and contact on the forward plate, and locating at a second position to be separated from the forward plate and the first rearward plate, so that the second rearward plate is capable of moving between the first and second positions; and a nail guiding track formed between the first and the second rearward plates when the second rearward plate is located at the first position, for guiding the striking blade

Abstract: A driver guiding set for a power nail gun includes a forward plate fixedly disposed at a bottom portion of a gun body of the power nail gun, a first rearward plate fixedly disposed at the forward plate, a first magazine rail fixed to the first rearward plate, a second magazine rail slidably disposed on the first magazine rail, and a second rearward plate fixedly disposed on the second magazine rail. A nail guiding track is disposed between the first and second rearward plates, which is switched in one of the status of parting and locking. When the second rearward plate contacts with the forward plate and the first rearward plate to lock the nail guiding track, the nail guiding track can induce a striking blade to strike the nail in the nail guiding track. When the second rearward plate moves far away form the forward plate and the first rearward plate to part the nail guiding track, the nail guiding track will be lifted, then the user can conveniently remove the nail locked in the nail guiding track.

Abstract: An auto-detection circuit for detecting video signals includes a reception end for receiving a video signal, a synchronization signal detector coupled to the reception end for generating a waveform according to voltage variation of the video signal, a peak value detector coupled to the synchronization signal detector for determining peak value of the wave form, a direct current voltage level switch coupled to the peak value detector for switching output voltage as first direct current voltage level or second direct current voltage level, and an output end coupled to the direct current voltage level switch for outputting the output voltage.