This paper also calculates the luminous flex and luminous efficiency of high pressure sodium lamp, which is commended by standard of road lighting as primary lighting source, based on the spectral luminous effi.

Through measuring and analyzing of the electro-optical properties of the gas with various mixing ratio and gas pressure, the optimisation of discharge gas was (investigated), from which the following conclusions can be obtained that adding Kr to Ne-Xe discharge gas can significantly increase the luminance, luminous efficiency and can improve chromaticity of white-field .

To overcome PDP’S shortage of low luminous efficiency, many important modifications are accomplished in panel structure, phosphors material, working gas, manufacturing process and drive circuit.

An organic light-emitting diodes(OLEDs) with improved efficiency by inserting a buffer layer using perylenetetracarboxylates(TMEP) between the emitting layer and cathode has been fabricated.

To improve the emitting efficiency is one of the most important research aspects.

The apple wine aroma compositions and fermentation efficiency by mixed species culture were investigated in this paper.

Study on luminescent efficiency of light emitting diode in the vacuum condition;

This paper introduces systematically the factors affecting the electro-luminescent efficiency of organic light-emitting de- vices(OLED).

The maximum luminescent efficiency and power eff.

Calculating material balance and evaporating efficiency ofdouble decomposition reaction produce KNO_3;