Abstract:
A vacuum coating apparatus is disclosed. The apparatus includes a cathode target, a plurality of anodes, a transiting device, a pulsed arc discharge device, and a pulsed laser device. The plurality of anodes is placed on the transiting device and successively passes though a working position by the transiting device. The pulsed arc discharge device is electrically connected to the cathode target and the anode at the operable position to form plasma in a vacuum chamber for film coating. The pulsed laser device is located outside of the vacuum chamber and provides a pulsed laser beam onto the surface of the cathode surface to serve as a plasma trigger. A coating method for the vacuum coating apparatus is also disclosed.
Abstract:
A wheel rim is adapted for mounting of a tire thereon, and comprises an annular frame. The annular frame includes two end surfaces abutting against each other, an annular bottom wall, and a pair of annular left and right sidewalls extending respectively, radially, and outwardly from left and right sides of the bottom wall. Two annular flanges extend respectively and axially from radial outer ends of the left and right sidewalls toward each other. Each of the flanges is formed with a first through hole that extends from one of the end surfaces to the other of the end surfaces.
Abstract:
A wheel rim includes two annular sidewalls and a main connecting wall. The main connecting wall has two ends connected respectively and fixedly to radial inner ends of the sidewalls, and opposite radially inner and outer surfaces. The radially inner surface faces the hub, and has two axial surface portions and a middle surface portion that are preferably concaved toward the tire. The radially outer surface has two axial surface portions and a middle portion. The axial surface portions of the radially inner and outer surfaces define two force-bearing areas having a plurality of mounting holes. The middle surface portions of the radially inner and outer surfaces define a weight-reducing area having a thickness smaller than a thickness of the force-bearing areas. The force-bearing areas and the weight-reducing area are arched.
Abstract:
The present invention relates to a novel nucleic acid encoding a β-1,3-glucanase polypeptide of lily, and an expression vector, host cell and transgenic plant comprising the nucleic acid of the invention. The expression of the nucleic acid of the invention in the plant will enhance resistance against a wide variety of stresses, in particular fungal attack.
Abstract:
A bicycle wheel includes a hub and a plurality of mounting seats arranged around the hub and pivoted to the hub for pivoting about axes parallel to an axis of the hub. A plurality of spokes have outer ends mounted on a wheel rim, and inner ends mounted on the mounting seats for mounting the wheel rim on the hub.
Abstract:
A bicycle wheel rim includes an annular rim body and a plurality of mounting members. The rim body has an axis, and includes a tire retaining portion which has annular left and right tire retaining walls that are spaced apart from each other. Each of the tire retaining walls has a radial inner edge proximate to the axis of the rim body, and a radial outer edge distal to the axis of the rim body. The rim body further includes an annular spoke mounting portion disposed radially inward of the tire retaining portion and interconnecting the radial inner edges of the tire retaining walls. The spoke mounting portion has two opposite lateral outer surfaces, and is formed with a plurality of receiving holes that extend through the lateral outer surfaces and that are distributed along the length of the rim body. The mounting members are received in the receiving holes, respectively. Each of the mounting members has two opposite mounting ends that project from the lateral outer surfaces of the spoke mounting portion. Each of the mounting ends is formed with a spoke mounting hole adapted for mounting a spoke thereon.
Abstract:
A bicycle wheel rim includes an annular frame formed from a metal strip with opposite end portions and having spaced left and right annular tire retaining walls with brake pad contacting surfaces, an annular inner spoke mounting wall interconnecting inner edges of the tire retaining walls, and an annular outer connecting wall disposed around the spoke mounting wall and interconnecting the tire retaining walls. The tire retaining walls, the spoke mounting wall and the outer connecting wall cooperatively confine an annular channel. Each of the left and right annular tire retaining walls, the spoke mounting wall and the outer connecting wall has two confronting end faces that are disposed respectively at the end portions of the metal strip and that are in close contact with each other. A connecting member is fitted in the channel and extends into the end portions of the metal strip. A weld connection is provided on the annular frame to strengthen connection between the end portions of the metal strip. The brake pad contacting surfaces of the tire retaining walls are free of any weld flash.
Abstract:
A bicycle wheel rim includes an annular rim body having a rim axis, and including left and right annular side walls, a pair of annular oblique walls, an annular base wall, left and right annular connecting walls, and a pair of annular tire-retaining ribs. Each of the left and right annular side walls has a radial outer edge. Each of the oblique walls extends obliquely from a respective one of the side walls toward the other one of the side walls. The base wall interconnects the oblique walls and has a radial outer side. Each of the left and right annular connecting walls extends from the base wall to connect to a respective one of the side walls. A radial distance between the radial outer side of the base wall and the radial outer edges,of the side walls ranges from 8.5 millimeters to 12.5 millimeters.
Abstract:
The present invention relates to a novel nucleic acid encoding a β-1,3-glucanase polypeptide of lily, and an expression vector, host cell and transgenic plant comprising the nucleic acid of the invention. The expression of the nucleic acid of the invention in the plant will enhance resistance against a wide variety of stresses, in particular fungal attack.