In view of the problems existed in UNICOL Coloring oxide film>20μm of 6063 aluminum alloy profiles,anaylsis and improvement were carried out and the same colouring quality as AA15 dull black can be obtained for UNICOL coloring finnally.
A specific process is put forward. Effect of application proves that a layer phosphorized membrane of the depth 1～3 μm is produced after phosphating on galvanized steel wire by dipping, the depth of heat coating black LLDPE is 300～500 μm, adhesive force is 70～90 N/cm, and protective ability obtains 30～50 years in the seawater.
Effects of garlic and black grape extracts on the activity of adenosine deaminase from cancerous and noncancerous human urinary
A black-scholes formula for option pricing with dividends
We obtain a Black-Scholes formula for the arbitrage-free pricing of European Call options with constant coefficients when the underlying stock generates dividends.
The impact of different interference substrate materials for improving the color travel effect was studied, and the influence of white and black background on the hue and the color travel effect were studied.
Nutrient Dynamics of Fine Roots in the Mixed Plantation of Poplar and Black Locust