Abstract: A bio-degenerable bone cement is made of a mixture of poly (propylene fumarate) (PPF) and a diphasic material of tetra-calcium phosphate (TTCP)/dicalcium phosphate anhydrous (DCPA). The bone cement produced by a manufacturing method is injectable, bio-degenerable and non-penetrable to radioactive rays and features the advantages of a compressive strength close to the strength of bones, a low polymerization temperature, and a high biological compatibility.

Abstract: A light guide module (10) for use in a flat panel display (21) comprises a light guide pipe (20) having a light emitting surface (21), and a light incident surface (25) orthogonal to the light emitting surface. A light diffusion arrangement (30) is deployed over the light emitting surface and includes organic scattering balls (31) homogenously mixed within a bonding agent (33). At least a light source (60) is arranged adjacent the light incident surface to project light beams into the light guide module.

Abstract: An arc chamber including a reaction chamber, a filament element used to generate electrons, a first power supply means set for providing power to the filament element, a second power supply means utilized for creating a potential to increase the ionization efficiency, a plurality of gas injected openings set to inject suitable gas into the reaction chamber and be ionized in a gaseous plasma by impact from electrons, a first filament insulator, and three second filament insulators used for isolation. The first filament insulator includes a truncated corn portion and a ring portion. The truncated corn portion has a hole formed threrethrough itself. The ring portion is coaxially connected to the smaller surface of the truncated corn portion. The second filament insulator includes a truncated corn portion and two ring portions. Similarily, the truncated corn portion has a hole through formed therethrough. The ring portions are respectively coaxially connected to the two surfaces of the truncated corn portion.

Abstract: A housing of ceiling fan control circuit board is composed of a body and a cover plate. The body is provided respectively at both ends of a longitudinal axis thereof with a recessed arcuate portion extending upwards and obliquely from a bottom plate of the body, and with a protruded arcuate portion extending uprightly from the recessed arcuate portion. The body is further provided respectively at both ends of a short axis thereof with an anterior plate and a posterior plate, which form, in conjunction with the recessed arcuate portion and the protruded arcuate portion, a shape so similar to a boat hull as to fit securely into a receiving space of a suspension cup of a ceiling fan. The body contains a space formed by a plurality of stopping wings, the anterior plate and the posterior plate for mounting therein the circuit board and electronic elements.