Analysis of the Main Indicators of the Bucharest Stock Exchange
The goal of this article is to achieve an analysis of the evolution and significance of the main indicators of the Bucharest Stock Exchange (stock exchange capitalization, BET index, value of the concluded transactions) over the last fifteen years. One of the significant elements in analyzing the performances of the capital market consist of the stock exchange capitalization which an essential indicator for characterizing of this domain of activity, mainly if considering the fact that it is used as weighing factor in the calculation of the stock exchange indices. Therefore, I have studied the connection between this one and the other analyzed indicators, applying in this respect the econometric model of regression.
Analysis Model of the Capital Market in Romania
This article aims to use the existing statistical-econometric instrument in order to achieve a complex analysis of the Romanian capital market evolution as well as to identify certain econometric models capable to reflect the correlation between the main indicators and, mainly, to identify some general tendencies concerning their subsequent evolution. Actually, we accomplished an analysis of the characteristic, the actual modality to organize the financial instruments being used and of the activity carried on by the capital market in Romania during the year 2014. In this respect, there are submitted aspects concerning its structure as well as the value and the monthly evolution of the main indicators recorded. Since the stock exchange capitalization represents one of the most significant indictors utilized for featuring a stock exchange market, by applying the regression econometric model we have studied the correlation between this one and other analysed indicators.
An analytical approach to the design of electrodes in high-power, fast-transverse-flow CO2 lasers
Abstract Usually, the design of the electrodes of fast-transverse-flow CO 2 lasers relies more on experimental data than on theoretical analysis. Traditional systems sustain a stable, high-power discharge but the current distribution generates a peaked, non-uniform small-signal-gain pattern. We present a theoretical model suitable for the design of electrodes that achieves a quasi uniform gain distribution. The analysis, based on a two-temperature model and the gas-transport equations, computes the electron density that supports a flat gain pattern. Combining the desired electron density with the electron-balance equations, the model determines the required electric field. The results were used to design a new set of electrodes for a home-made fast transverse flow CO 2 laser. A stable, large volume discharge ( 4 × 8 × 90 cm 3 ) with very good uniformity was obtained. The resulting gain distribution was registered in a bi-dimensional map. The peak gain rose from 1.2 m - 1 , attained with the old electrode set, to 1.6 m - 1 with the new one and the gain showed a homogeneous profile.