The finite wavelength instability generates trigger and packet waves in an extended three-variable Brusselatortype model. The trigger waves account for experimentally observed stacking (shock) structures and acceleration of oncoming waves before collision observed in the Belousov-Zhabotinsky system. Packet waves exhibit specular reflection from surfaces. The mouth of a narrow tube connected to ...

INTRODUCTION Ocular injuries commonly involve the lacrimal system. CASE A 14-year-old male had an eyelid injury with a canalicular tear. An angiocatheter tube was used as a stent for canalicular reconstruction. The focus of this report is on the method used, as well as the material for the repair in a rural hospital. CONCLUSION Angiocatheter tube can be a suitable alternative to silicone tu...

Cr4+:YAG double-clad crystal fiber with an uniform 10-microm core was fabricated by using a sapphire tube as a heat capacitor to stabilize the power fluctuation of the CO2 laser in the co-drawing laser-heated pedestal growth system. The uniformity of the fiber core showed a factor of 3 improvement compared to that without the use of sapphire tube. The variation of the core diameter is within th...

Uniform Design, Finite Element Simulation, Artificial Neural Networks, Genetic Algorithm had been integrated to optimize the die geometric parameters of copper tube produce. The browser, WEB server and database structure of copper tube processing quality information management system were designed, The SPC technology of intelligent diagnosis analysis and processing were realized quality informa...