Abstract: This invention refers to surface modification/functionalization of Nitride nanomaterials and electrochemistry and optical measurement based upon such functionalized Nitride materials. With this invention a variety of bio-molecules such as DNA, protein, and antigens can be immobilized on the surface for measurement to realize ultra-sensitive chemical- and bio-sensing applications.

Abstract: This invention refers to surface modification/functionalization of Nitride nanomaterials and electrochemistry and optical measurement based upon such functionalized Nitride materials. With this invention a variety of bio-molecules such as DNA, protein, and antigens can be immobilized on the surface for measurement to realize ultra-sensitive chemical- and bio-sensing applications.

Abstract: A handlebar assembly for a cycle includes a post having a number of teeth formed in the upper end, a wedge engaged with the lower end of the post, a shank having a number of teeth formed in one end for engaging with the teeth of the post, a stub rotatably engaged in the shank, a bolt is threadedly engaged with the stub, engaged through the post and threadedly engaged with the wedge, so that the post can be fixed in the bicycle and the shank can be fixed to the post when the bolt is threaded.

Abstract: A bicycle seat adjusting assembly includes a seat tube having a bore extending transversely through an upper part thereof, a balance tube received in the transverse bore with two ends thereof exposed outside the transverse bore, a mounting member adapted to hold bicycle seat supporting rods therein, having an arcuate bottom surface pivotally received in the arcuate surface in the upper end of the seat tube and two ears each with a vertical hole therein in alignment with a vertical bore in each of the exposed ends of the balance tube, a positioning block mounted on each ear and having a threaded hole in alignment with the associated vertical hole in each ear, and an adjusting bolt passing through each vertical bore and associated vertical hole to engage with the associated threaded hole. Rotation of the two adjusting bolts in opposite directions causes a change of the inclination of the bicycle seat supporting rods.

Abstract: A shock absorbing assembly includes a block securely mounted in a bicycle seat tube and having a vertical threaded bore through which an adjusting bolt passes. A fixed block is mounted in the seat tube above the block, having an upper side and a lower side to which a distal end of the adjusting bolt is securely attached. An upper block is slidably mounted in the seat tube above the fixed block. A spring is mounted between the fixed block and the upper block. A seat post is received in the seat tube with a bottom end thereof resting on the upper side of the movable upper block. A transverse bore is formed in the seat post at a section above the seat tube. A seat mechanism includes an upper ring element, a lower ring element, and a pair of guiding rods extending therebetween. A balance rod passes through the transverse bore in the seat post and has two vertical holes through which the guiding rods pass.

Abstract: A method for manufacturing a seat post of a bicycle includes the following processes: tapering a free end of a cylindrical tube so as to form a tapered end; bending the tapered end of the cylindrical tube so as to form a bent end; forming the bent end of the cylindrical tube so as to form a seat support; and drilling a hole in the seat support.