Charge-transporting 3,4-ethylenedioxythiophene-based hydrazone monomers and oligomers

3,4-Ethylenedioxythiophene-based hydrazones, containing reactive functional groups were synthesized and their optical, thermal, photophysical and electrochemical properties were studied. The monomers were subjected to cationic polymerization using boron trifluoride etherate as an initiator. The ionization potentials of the films of the hydrazones, measured by the electron photoemission technique, range from 5.53 to 5.62 eV. Room temperature time-of-flight hole mobilities in the solid solutions of 3,4-ethylenedioxythiophene hydrazone monomers in bisphenol-Z polycarbonate exceed 10^?5 cm² V^?1 s^?1 at high applied electric fields.     

Gaze point estimation on curved display by using session level calibration for flat screen displays

Multimedia Tools and Applications - The advantages of curved screen displays find their place in populations everyday life, therefore it is important to adapt the existing eye tracking systems for...     

Various compositions of burner gas fuel and air streams for lower CO and NOx yield

The maximum temperature can be reduced and fuel combustion with the smallest possible amount of air can be achieved by optimizing the configuration of the fuel and the air streams and by adapting these streams to the firebox geometry. In this work, powerful secondary gas stream systems were modified in three ways in a rectangular prolonged firebox. The measurements established that the flow rate and geometrical distribution of these streams can determine the CO production rate, the excess air ratio must be finely tuned for complete combustion, and all these factors determine the production of NO_x. If CO burn out is not achieved, it is reasonable to separate the gas into finer streams. The calculations demonstrate that long gas streams with higher flow rates along the firebox produce more CO, and a longer firebox is needed for the complete burn off of CO. In a second case, a very fine gas injection with streams grouped in packages near the burner was utilized in a firebox containing curved flame torches. Low CO yields were achieved, and the fuel combustion at nearly stoichiometric conditions resulted in lower NO_x emissions.