Abstract: A method and a kit for detecting Mycobacterium tuberculosis are provided. The method includes a step of performing a nested qPCR assay to a specimen. The nested qPCR assay includes a first round of amplification using external primers and a second round of amplification using internal primers and a probe. The external primers have sequences of SEQ ID NOs. 1 and 2, and the internal primers and the probe have sequences of SEQ ID NOs. 3 to 5.

Abstract: A circuit board includes a substrate and a metallic layer. A first area and at least one second area are defined on a portion of the substrate, the second area is located outside the first area. The metallic layer includes first test lines disposed on the first area and second test lines disposed on the second area. A first test pad of each of the first test lines has a first width, and a second test pad of each of the second test lines has a second width. The second width is greater than the first width such that probes of an electrical testing tool can contact the first and second test pads on the circuit board correctly during electrical testing.

Abstract: A mold for manufacturing an artificial shuttlecock from a semi-finished shuttlecock includes a male mold and a female mold. The male mold includes a cone frustum and a plurality of first annular grooves. The semi-finished shuttlecock is placed on an outside of the cone frustum. The first annular grooves are disposed apart on the outside of the cone frustum. The female mold includes a tapered slot, a plurality of second annular grooves and an injection channel. The second annular grooves are disposed apart on an inner surface of the tapered slot. When the semi-finished shuttlecock and the male mold are placed into the female mold, each of the first annular grooves corresponds to each of the second annular grooves to form a plurality of molded grooves. The injection channel communicates with the second annular grooves, and the molded grooves communicate with the injection channel through the second annular grooves.

Abstract: A nebulizer includes a main body (1), a spraying head (2) and an engagement structure (4). The main body (1) includes a body (11). The spraying head (2) includes a spraying seat (21) assembled to the body (11). The engagement structure (4) includes a notch (41) formed on one of the body (11) and the spraying seat (21), a T-shaped trench (42) formed on an inner wall of the notch (41), an engaging trench (43) formed on another one of the body (11) and the spraying seat (21), and a movable member (44) received in the notch (41). The movable member (44) is extended with a handle (441) exposed from the notch (41), a T-shaped block (442) slidably received in the T-shaped trench (42) and an engaging block (443) embedded in or separated from the engaging trench (43).

Abstract: A nebulizer (1) includes a host (10) and a nozzle tube (20). The host includes a main body (11), a control module (12) and a sensor (13). The nozzle tube (20) includes a tube (21), a nozzle (22) and a detecting structure (23). The tube (21) includes a chamber (210). The nozzle (22) is arranged on one side of the tube (21) and communicates with the chamber (210). The detecting structure (23) includes a shutter (231) and a swinging member (232) connected with the shutter (231). The shutter (231) is disposed corresponding to the position of the sensor (13). The air blown from the nozzle (22) flows into the tube (21) and blows the swinging member (232) to drive the shutter (231) to activate the sensor (13).

Abstract: An artificial shuttlecock, a feather and a preparation method thereof are provided. The feather includes a connecting portion, a first portion, a second portion and a concave. The first portion and the second portion are disposed on the opposite sides of the connecting portion. The concave is located at an outer edge of the second portion. The concave is formed by the following steps of: defining an overlapped outline, which is the outline of the adjacent feather overlapping on the second portion; defining a reference point, which is a point where the overlapped outline is closest to the connecting portion; defining a shifting reference line, which passes through the reference point and is parallel to the connecting portion; defining a reference outline, which is located outside the shifting reference line; and cutting the reference outline to form the concave.

Abstract: A mold for manufacturing an artificial shuttlecock from a semi-finished shuttlecock includes a male mold and a female mold. The male mold includes a cone frustum and a plurality of first annular grooves. The semi-finished shuttlecock is placed on an outside of the cone frustum. The first annular grooves are disposed apart on the outside of the cone frustum. The female mold includes a tapered slot, a plurality of second annular grooves and an injection channel. The second annular grooves are disposed apart on an inner surface of the tapered slot. When the semi-finished shuttlecock and the male mold are placed into the female mold, each of the first annular grooves corresponds to each of the second annular grooves to form a plurality of molded grooves. The injection channel communicates with the second annular grooves, and the molded grooves communicate with the injection channel through the second annular grooves.

Abstract: An artificial shuttlecock, a feather and a preparation method thereof are provided. The feather includes a connecting portion, a first portion, a second portion and a concave. The first portion and the second portion are disposed on the opposite sides of the connecting portion. The concave is located at an outer edge of the second portion. The concave is formed by the following steps of: defining an overlapped outline, which is the outline of the adjacent feather overlapping on the second portion; defining a reference point, which is a point where the overlapped outline is closest to the connecting portion; defining a shifting reference line, which passes through the reference point and is parallel to the connecting portion; defining a reference outline, which is located outside the shifting reference line; and cutting the reference outline to form the concave.

Abstract: The present Disclosure discloses an artificial shuttlecock, which includes a base portion, a plurality of stems, a plurality of feathers, a first connecting element, a second connecting element and at least one third connecting element. The base portion includes a concave portion. One end of the stem connects to the base portion, and the feather connects to the other end of the stem. The first connecting element connects to the stems, and is close to the base portion. The second connecting element connects to the stems, and is close to the feathers. The third connecting element connects to the stems, and is located between the first connecting element and the second connecting element.

Abstract: The present Disclosure discloses an artificial shuttlecock, which includes a base portion, a plurality of stems, a plurality of feathers, a first connecting element, a second connecting element and at least one third connecting element. The base portion includes a concave portion. One end of the stem connects to the base portion, and the feather connects to the other end of the stem. The first connecting element connects to the stems, and is close to the base portion. The second connecting element connects to the stems, and is close to the feathers. The third connecting element connects to the stems, and is located between the first connecting element and the second connecting element.

Abstract: The present disclosure discloses a synthetic shuttlecock, which includes a base portion, a plurality of stems, and a plurality of feathers. One end of each of the stems is inserted into the base portion. Two of the feathers are connected to one of the stems. A connecting portion is formed on the stem, respectively. Each of the feathers has a first length and a first width. Each of the feathers has two holes, the two holes are located on the two sides of the connecting portion respectively, and the holes are close to a front end of the connecting portion. Each of the holes has a second length and a second width. The ratio of the second length to the first length is between 0.22 and 0.31, and the ratio of the second width to the first width is between 0.06 and 0.28.

Abstract: The present invention discloses a badminton racket, which includes a frame, a grip, a cap and a shaft. The grip includes a gripping portion, a sleeved portion, and a fastening element connected to the gripping portion. The sleeved portion has a first top surface and a first opening. The fastening element is connected to the first top surface, and the fastening element extends from the first opening to the inside of the gripping portion. The cap is sleeved onto the sleeved portion and has a second top surface and a second opening. There is a spacing length between the first top surface and the second top surface, and the cap has a cap length. The ratio of the spacing length to the cap length is between 0.39 and 0.83. One end of the shaft is connected to the frame, and another end is inserted into the fastening element.

Abstract: The present disclosure discloses a synthetic shuttlecock, which includes a base portion, a plurality of stems, and a plurality of feathers. One end of each of the stems is inserted into the base portion. Two of the feathers are connected to one of the stems. A connecting portion is formed on the stem, respectively. Each of the feathers has a first length and a first width. Each of the feathers has two holes, the two holes are located on the two sides of the connecting portion respectively, and the holes are close to a front end of the connecting portion. Each of the holes has a second length and a second width. The ratio of the second length to the first length is between 0.22 and 0.31, and the ratio of the second width to the first width is between 0.06 and 0.28.

Abstract: The present invention discloses a badminton racket, which includes a frame, a grip, a cap and a shaft. The grip includes a gripping portion, a sleeved portion, and a fastening element connected to the gripping portion. The sleeved portion has a first top surface and a first opening. The fastening element is connected to the first top surface, and the fastening element extends from the first opening to the inside of the gripping portion. The cap is sleeved onto the sleeved portion and has a second top surface and a second opening. There is a spacing length between the first top surface and the second top surface, and the cap has a cap length. The ratio of the spacing length to the cap length is between 0.39 and 0.83. One end of the shaft is connected to the frame, and another end is inserted into the fastening element.

Abstract: A plurality of artificial feathers connects to a plurality of stems and a base portion to form a shuttlecock. Each of the artificial feathers includes a connecting portion and a resistance portion. The connecting portion connects to one of the stems. The resistance portion connects to the connecting portion, and the resistance portion includes a plurality of low-wind-resistance areas and a high-wind-resistance area. The low-wind-resistance areas are surrounded by the high-wind-resistance area.

Abstract: A plurality of artificial feathers for a shuttlecock is disclosed. The artificial feathers connect to a plurality of stems and a base portion to form the shuttlecock. Each of the artificial feathers comprises a connecting portion and a resistance portion. The connecting portion connects to one of the stems. The resistance portion connects to the connecting portion, and the resistance portion comprises a plurality of low-wind-resistance areas and a high-wind-resistance area. The low-wind-resistance areas are surrounded by the high-wind-resistance area.