RAPID ECONOMIC GROWTH AT THE COST OF ENVIRONMENT DEGRADATION? – PANEL DATA EVIDIENCE FROM BRIC ECONOMIES

The paper investigates whether the decline in environmental quality in BRIC economies is due to high energy consumption level which is a resultant of rapid economic growth. We answer this using environmental, macroeconomic and financial variables along with Kyoto Protocol indicators based on panel data from 1992 to 2004.CO2 Emissions, Energy Consumption, Economic Growth, BRIC economies.

Determinants Of Barries To Quality Of Direct Foreign Investments Evidences From South & East Asian Economies

The objective of this paper is to examine whether FDI inflows in South & East Asian economies posses any barriers which are deterring to attract FDI of their actual potential? If so, what are those various set of barriers? These questions are addressed in this study using cross section time series data for 17 South and East Asian economies from 1996 to 2005.http://deepblue.lib.umich.edu/bitstream/2027.42/64376/1/wp910.pd

An analytical and experimental investigation of aerofoil-turbulence interaction noise for plates with spanwise-varying leading edges

This paper presents an analytic solution for gust–aerofoil interaction noise for flat plates with spanwise-varying periodic leading edges in uniform mean flow. The solution is obtained by solving the linear inviscid equations via separation of variables and the Wiener–Hopf technique, and is suitable for calculating the far-field noise generated by any leading edge with a single-valued piecewise linear periodic spanwise geometry. Acoustic results for homogeneous isotropic turbulent flow are calculated by integrating the single-gust solution over a wavenumber spectrum. The far-sound pressure level is calculated for five test-case geometries; sawtooth serration, slitted $v$-root, slitted $u$-root, chopped peak and square wave, and compared to experimental measurements. Good agreement is seen over a range of frequencies and tip-to-root ratios (varying the sharpness of the serration). The analytic solution is then used to calculate the propagating pressure along the leading edge of the serration for fixed spanwise wavenumbers, i.e. only the contribution to the surface pressure which propagates to the far field. Using these results, two primary mechanisms for noise reduction are discussed; tip and root interference, and a redistribution of energy from cuton modes to cutoff modes. A secondary noise-reduction mechanism due to nonlinear features is also discussed and seen to be particularly important for leading edges with very narrow slits.</jats:p

Optical parametric generator based on orientation-patterned gallium phosphide

We report the first pulsed optical parametric generator based on Orientation-patterned Gallium Phosphide. The output is tunable from 1721-1850 nm (signal) and 2504-2787 nm (idler), providing a total output power of 18 mW.Peer ReviewedPostprint (author's final draft