Abstract: A roasting drum has a main body and at least one opening formed through the main body. The main body has a first end, a second end opposite the first end, and multiple drums. The multiple drums are mounted around one another in sequence, are fastened to one another, and communicate with one another. Each one of the multiple drums has a blending blade formed on an inner surface of the drum. The blending blade is spiral and extends from the first end toward the second end. The blending blade of one of the multiple drums twists along a clockwise direction from the first end toward the second end. The blending blade of another one of the multiple drums that is mounted around the drum twists along a counter-clockwise direction from the first end toward the second end.

Abstract: A roasting drum has a main body and at least one opening formed through the main body. The main body has a first end, a second end opposite the first end, and multiple drums. The multiple drums are mounted around one another in sequence, are fastened to one another, and communicate with one another. Each one of the multiple drums has a blending blade formed on an inner surface of the drum. The blending blade is spiral and extends from the first end toward the second end. The blending blade of one of the multiple drums twists along a clockwise direction from the first end toward the second end. The blending blade of another one of the multiple drums that is mounted around the drum twists along a counter-clockwise direction from the first end toward the second end.

Abstract: A DNA vaccine, which comprises a DNA construct comprising an expression vector which is expressible in a eukaryotic cell, and a nucleotide fragment which comprises an IL-6-encoding sequence and an HPV E7(detox)-encoding sequence. A pharmaceutical composition and a method for preventing or treating HPV-related (-induced) diseases are included.

Abstract: A dartboard consists of an electronic plate (40), a base board (42) mounted on the electronic plate (40), a frame (10) having multiple compartments (12), multiple dart blocks (20) loosely mounted inside the respective compartments (12) and a window frame (70) mounted on the frame (10). Improvements of the dartboard include multiple cutouts (14) being defined in the frame (10) division walls (11) around the compartments (12) allow the frame (10) to accommodate slight variations in the size of dart blocks (20); each dart block (20) having a dart box (21) with smooth outer surfaces to make the dart block (20) easily move inside the compartment (12); and a contact pin (241) formed under the dart block (20) to actuate the electronic plate (40). All improvements in configuration make the dartboard precisely calculate scores.

Abstract: A sectional target board of a dartboard consists of a grid frame having a plurality of receiving spaces for different score sectors, a plurality of target plates movably received in the plurality of receiving spaces, and a grid fixed on a the grid frame. The grid has a ring recess to receive the front end of the grid frame, and provides with a plurality of fastening pins which are respective inserted into corresponding plurality of fastening holes of the grid fame. The grid can be easily detached from the grid frame to free the target plates, thus the soft target blocks can be easily replaced, and then the grid can be reassembled on the grid frame. In such a way the soft target blocks are saved, and only the worn blocks need to be replaced. Thus, the sectional target board of the dartboard is economical.

Abstract: A dartboard has a plurality of auto-returning target plates fitted in a grid frame which is enclosed in an outer ring, and has a grid fixed on a front end of the grid frame, a rear board mounted on rear ends of the grid frame and the outer ring, and an electric circuit board mounted on a rear end of the rear board. Each spring has a first end thereof positioned by a corresponding guide element, and a second end thereof extended through the corresponding hole of the rear board and lightly contacted with the electric circuit board. The auto-returning target plates are able to be depressed when darts are thrown and stick on the target plate and automatically returned to an original position by resilience of the springs.

Abstract: A dartboard has a plurality of auto-returning target plates fitted in a grid frame which is enclosed in an outer ring, and has a grid fixed on a front end of the grid frame, a rear board mounted on rear ends of the grid frame and the outer ring, and an electric circuit board mounted on a rear end of the rear board. Each spring has a first end thereof positioned by a corresponding guide element, and a second end thereof extended through the corresponding hole of the rear board and lightly contacted with the electric circuit board. The auto-returning target plates are able to be depressed when darts are thrown and stick on the target plate and automatically returned to an original position by resilience of the springs.

Abstract: A sectional target board of a dartboard consists of a grid frame having a plurality of receiving spaces for different score sectors, a plurality of target plates movably received in the plurality of receiving spaces, and a grid fixed on a the grid frame. The grid has a ring recess to receive the front end of the grid frame, and provides with a plurality of fastening pins which are respective inserted into corresponding plurality of fastening holes of the grid fame. The grid can be easily detached from the grid frame to free the target plates, thus the soft target blocks can be easily replaced, and then the grid can be reassembled on the grid frame. In such a way the soft target blocks are saved, and only the worn blocks need to be replaced. Thus, the sectional target board of the dartboard is economical.