The Impact of Development on CO2 Emissions: A Case Study for Bangladesh until 2050

Bangladesh, a country with a population of 160 million, is currently contributing 0.14 percent to the world’s emission of carbon dioxide (CO2). However, mostly due to a growing population and economic growth (which both lead to an increase in energy consumption), Bangladesh’s share in CO2 emissions is—despite the increasing use of alternative energy—expected to rise sharply. This study uses the example of Bangladesh to illustrate the impact of low-income countries’ energy neutral development on global CO2 emissions in 2050 by using a set of alternative assumptions for population growth and GDP growth. It also shows how complex the determinants for (a) gains in energy efficiency and (b) changes in carbon intensity are in low-income countries.climate change, carbon dioxide emission, Bangladesh, Copenhagen Accord

Mineral Extraction in Bangladesh: Some Fundamental Reform Suggestions

This paper proposes some fundamental reforms of the way the extraction of minerals are managed in Bangladesh. It suggests a Mineral Management Initiative that consists of three components: (i) the creation of Mineral Oversight Committee, (ii) the establishment of a Mineral Revenue Program, and (iii) a comprehensive Mineral Capacity Building Program. The purpose of the Mineral Oversight Committee (MOC) would be to oversee all decisions of Petrobangla’s Board of Directors as well as to monitor all major transactions of Petrobangla, including especially the use of mineral revenues and royalties. The establishment of a Mineral Revenue Program (MRP) is proposed to ensure that the revenues and royalties from the extraction of Bangladesh’s minerals will accrue to all the people of Bangladesh, while a comprehensive Mineral Capacity Building Program (MCBP) would provide specialized resource and management training.Bangladesh, mineral extraction, natural gas, oil, management

Does the HIPC Initiative Achieve its Goal of Debt Sustainability?

Debt sustainability, Structural change, Growth

Optical enhancement of photomultiplier sensitivity

Transmission and reflection light losses are reduced by introducing light into end-window of device at an angle large enough to normal so total internal reflection occurs at both photocathode-vacuum and window-air interfaces

The effect of support flexibility and damping on the dynamic response of a single mass flexible rotor in elastic bearings

The dynamic unabalance response and transient motion of the single mass Jeffcott rotor in elastic bearings mounted on damped, flexible supports are discussed. A steady state analysis of the shaft and the bearing housing motion was made by assuming synchronous precession of the system. The conditions under which the support system would act as a dynamic vibration absorber at the rotor critical speed were studied. Plots of the rotor and support amplitudes, phase angles, and forces transmitted were evaluated by the computer and the performance curves were plotted by an automatic plotter unit. Curves are presented on the optimization of the support housing characteristics of attenuate the rotor synchronous unbalance response

Quasi-Normal Modes of Brane-Localised Standard Model Fields

We present here a detailed study of the quasi-normal spectrum of brane-localised Standard Model fields in the vicinity of D-dimensional black-holes. A variety of such backgrounds (Schwarzschild, Reissner-Nordstrom and Schwarzszchild-(Anti) de Sitter) are investigated. The dependence of the quasi-normal spectra on the dimensionality D, spin of the field s, and multipole number l is analyzed. Analytical formulae are obtained for a number of limiting cases: in the limit of large multipole number for Schwarzschild, Schwarzschild-de Sitter and Reissner-Nordstrom black holes, in the extremal limit of the Schwarzschild-de Sitter black hole, and in the limit of small horizon radius in the case of Schwarzschild-Anti de Sitter black holes. We show that an increase in the number of hidden, extra dimensions results in the faster damping of all fields living on the brane, and that the localization of fields on a brane affects the QN spectrum in a number of additional ways, both direct and indirect.Comment: 13 pages, 4 figures, to be published in Phys. Rev.

Transient journal bearing analysis

Transient response of fluid film journal bearin

Optical enhancement of sensitivity in laser Doppler velocity systems

Utilization of optical enhancement techniques prevents loss of light by reflections at the photocathode of a photomultiplier and increases signal detection sensitivity