No abstract

The transient properties of the organic light-emitting diodes (OLEDs) with a 0.05-nm-thick 4-(dicyanomethylene)-2-i-propyl-6-(1,1,7,7-tetramethyljulolidyl-9-enyl)-4H-pyran (DCJTI) partial doping layer in different regions of tris(8-hydroxyquinoline) aluminum (Alq 3 ) were examined. For the device with a 0.05-nm-thick DCJTI partial doping layer at the interface between the diamine and Alq 3 , excitons are confined within the narrow region of the interface. The maximum luminance of more than 30,000 cd/m 2 was obtained from all devices. Different transient behaviors between host and guest molecules were found. The transient electroluminescence waveform at 620 nm has an initial overshooting peak compared with that at 520 nm. An OLED with a DCJTI partial doping layer at the interface between the diamine and Alq 3 layers shows a higher initial overshooting peak and faster decay time due to the accumulated charges and the narrow emission regions than the OLEDs with a DCJTI partial doping layer in the Alq 3 layer.

PURPOSE:The purpose of this study is to investigate the effect of the physical therapy treatment room environment using microwave diathermy on the autonomic nervous system of human body. METHODS: Participants were 24 healthy adults. Standard deviation of all normal R-R intervals(SDNN), root mean square of successive differences(RMSSD), low frequency(LF), high frequency(HF), LF/HF ratio were compared in microwave irradiation and non-irradiation group. Data were analyzed in Wilcoxon's signed-ranks test and Mann-Whitney U test.

No abstract

No abstract