In this dissertation, the DSCs with overall conversion efficiencies over 8% were attained under illumination of simulated AM1.5 sunlight (light intension 376W/m2) by means of substrate electrodeposit pre-treatment, TiCl4 post-treatment, blending sol with larger TiO_2 particles, using of TiO_2 nanotube and nanorod and reducing the resistance of substrate.
The parametrization of mesh generation is presented to analyze the magnetic fields of salient pole synchronous machine and to calculate its loop parameters. By using the technique,the pre processing work can be simplified in the finite element analysis of large salient pole synchronous machines with different dimensions,pole numbers and winding types.
The present results indicate that heat stress pretreatment can improve the spatial learning and memorizing function through protection to hippocampal neurons.
The flowering frequency can be further increased to 82.8 % on the average by pre-treatment of protocorms in an ABA-containing medium followed by transfer onto MS medium with BA.
A sample pre-treatment with a column filled with mixed cation-exchange resin in Ag, Ba and H forms was needed before pre-concentration of bromate on alumina.
The optimal temperature programs are defined according to the pre-treatment and atomization curves constructed in the presence of different types of wines.
Pretreatment of the larvae with ascorbic acid for 3 h protects from radiation-induced delay whereas pretreat ment with caffeine does not have any effect.
Out of 17 patients who received radiotherapy, 9 showed a significant decrease (p>amp;lt;0.005) while 8 showed significant increase (p>amp;lt;0.004) in post radiotherapy glutathione-S-transferase values as compared to pre treatment values respectively.
This paper studies a technology process of electroless nickel plating on aluminium.The pretreatment consists of cleaning, etching, rinsing, zincate. The relation between the plating rate and primary factors in electroless nickel plating is developed.It is found that increasing the concentrations of nickel sulfate and sodium hypophosphite,temperature and pH improves the plating rate.There is a maximum of plating rate with the complexing agent increasing. The plating rate,stability of bath,hardners and solder...
The reason of explosive accident of 110 kV voltage transformer was analyzed, which was caused by internal existentdefect of transformer. But the handling before explosive accident of voltage transformer was not resolute and capable,and the problems discovered in the preventive high voltage test were not be prompted to relevant department,and no reform opinions and measures were put forward. It is worth while to summarize and absorb the lesson.