Abstract:
A casing includes a main body and a covering layer. The main body has a first transparent area and a second transparent area disposed as mirror images. Light passes through the first transparent area and the second transparent area. The covering layer covers the second transparent area and has a transmittance gradient. A method for manufacturing the casing and an electronic device having the casing are also disclosed.
Abstract:
A portable electronic device includes a casing, a key, a loudspeaker, a soft insulating material, and an actuating unit. The key is disposed at the casing. The loudspeaker is embedded into the casing flatly. The soft insulating material covers the casing and the loudspeaker. The actuating unit is coupled to the key and the loudspeaker, and it actuates the loudspeaker to protrude from the casing in response to an actuation of the key.
Abstract:
The present invention discloses a DNA vaccine and its method of preparation, which employs DNA recombination technique to co-incorporate a fragment of tumor-associated gene and a fragment of cytokine gene into a vector. The administration of such DNA vaccine may enhance the immune response of the host through the co-expression of tumor-associated antigen and cytokine, and thereby achieve the therapeutic effect of inhibiting or retarding tumor growth.