Approach to Pollution-Free Pulping Processes

non-corrective approach to pronunciation

the aim of this study has been to find answers for the following questions: 1. what is the effect of immediate correction on students pronunciation errors? 2. what would be the effect of teaching the more rgular patterns of english pronunciation? 3. is there any significant difference between the two methods of dealing with pronuciation errore, i. e., correction and the teaching of the regular ...

Pollution Control in Industrial Processes

Air Pollution and Tropospheric Processes

Nonmethane hydrocarbons (NMHCs) play an important role in the atmosphere. Photochemical oxidation of hydrocarbons leads to ozone (O3), organic acid, and carbon dioxide (CO2) production, with major implications for local and regional air quality, acid deposition, and the greenhouse effect. In addition, emissions of atmospheric NMHCs lead to an increased aerosol loading, which has major implicati...

Character-free approach to progression-free sets

We present an elementary combinatorial argument showing that the density of a progression-free set in a finite r-dimensional vector space is O(1/r).

Dynamical approach to Lévy processes.

We derive the diffusion process generated by a correlated dichotomous fluctuating variable y starting from a Liouville-like equation by means of a projection procedure. This approach makes it possible to derive all statistical properties of the diffusion process from the correlation function of the dichotomous fluctuating variable Fy(t). Of special interest is that the distribution of the times...