Laser induced breakdown spectroscopy (LIBS) provides a useful technique for food security as well as determining nutrition contents. In this paper, optical emission studies of laser induced plasma on commercial tea samples were carried out. The spect
The output characteristics of a TEA CO2 laser for various gas mixtures and various pump levels are quantitatively calculated using time-varying electron excitation coefficients. The calculation results are in good agreement with those of experiments.
To achieve good trade-off between access performance and memory efficiency, it is appropriate to adopt replication and erasure coding to keep popular and unpopular in-memory datasets, respectively. An issue of redundancy transition from replication t
Irradiating the mixture of methane and bromine with 9.6m 5(22) line of TEA C02 laser, we excite CH2D3 selectively and increase the rate of the bromination reaction of CH3D2 so that deuterium is enriched. The reaction mixture consists of 30 Torr CH4,
A TEA CO2 laser with air as gas source is reported. Its parameters are comparable to those obtained with industrial CO2 and N2 as gas source. A descr iption is given of the structure and the features of the gas generator and the experimental results.
In this paper we introduce a Marx bank which has low inductance and the characteristics of high repetition rate discharge, and can be used in TEA CO2 lasers. Its construction is illustrated in detail. The inductance of Marx bank is less than 60 nH, t
