present worth
1.In this paper based on density control model of \%P. massoniana\% plantation established by dynamic programming, Genetic Algorithm was applied to select optimal decision in determining thinning age, optimal density and cutting age during stand management, which was on the basis of the density effect model, took the stand density as objective function and maximal present net worth ( PNW ) as standard.
6.With regard to the war as a whole, the Red Army led by the Chinese Communist Party can at present only play a vanguard role, it cannot yet play a decisive role on a national scale. Nevertheless its political, military and organizational merits are well worth acquiring by friendly armies throughout the country.
9.For example, the investor needs $60 (Floor) for retirement and is not willing to risk this amount in any investment. His present wealth is $100., Assume that m=2, he will invest 2X($100-60) or $80 in stocks and save $20. If the market drops by 10%, his stock investment will be worth $72 and his total wealth will be $92 ($72 stocks and $20 savings).
10.Especially is the viewpoint of the research model, advocated the development of the curriculum with the assessment should conformity be one, the teacher during development curriculum, namely should do action research to evaluate self-teaching with introspection, extremely is worth at present carrying out the school -based curriculum development as well as the teachers of emphasizing professional independent in school to refer.
