Publish in OALib Journal
APC: Only $99
A method is introduced to stabilize unstable discrete
systems, which does not require any adjustable control parameters of the
system. 2-dimension discrete Fold system and 3-dimension discrete hyperchaotic
system are stabilized to fixed points respectively. Numerical simulations are
then provided to show the effectiveness and feasibility of the proposed chaos
and hyperchaos controlling scheme.
This paper aims to study the mechanism of how economic growth and
tax reform affect total tax revenue and structure over the period (1950-2011).
On the basis of the introduction of China’s previous main measures in tax
reform, this paper uses methods as descriptive statistics, multi-segment linear
regression model and principal component analysis to analyze how economic
growth and tax reform affect the total tax revenue and structure mainly from
three aspects as the total amount of the tax, the value-added tax and the
corporate income tax, which are under the background of tax reform. The
empirical results show that economic growth not only has a significant impact
on the total tax revenue and structure changes, but also has a long-term
stability relationship with total tax revenue. And in a long term, there is no
extraordinary growth of tax revenue. In addition, every tax reform shows a
clear impact on the tax structure, while the impact of changes in the total tax
revenue is diminishing over time.
As ITU-R Recommendations is widely
implemented for countries all over the world, the role and status of ITU-R
Recommendations are increasingly prominent in the field of radio engineering.
ITU and ITU-R Study Groups are summarized. Furthermore, the operating mode of
the third study group, and the input documents are interpreted in detail.
Lastly, from both wireless system design and electromagnetic compatibility
analysis perspective, all of 79 P-series Recommendations are analyzed and
classified, and the main contents of each Recommendation are summarized. The
above research promote P-series Recommendations are widely used in China.