Passive and active responses to intracellular and extracellular stimulation were studied in the canine papillary muscle. The electrotonic potential produced by extracellular polarization with the partition chamber method fitted the time course and the spatial decay expected from the cable theory (the time constant, 3.3 msec; the space constant, 1.2 mm). Contrariwise, spatial decay of the electr...

A study of the aging characteristics of evaporated ZnS:Mn alternating-current thin-film electroluminescent (ACTFEL) devices is undertaken by monitoring the capacitance-voltage (C-v) characteristics at various temperatures as a function of aging time. Short-term ACTFEL aging is characterized by a rigid shift in the C-V curve to higher turn-on voltage with aging time. Additionally, the insulator ...

Speed distributions, and spatial anisotropy and atomic angular momentum polarization parameters have been determined for the O((3)P(J)) products following the photodissociation of ozone at 248 and 226 nm using velocity map ion imaging. The data have been interpreted in terms of two dissociation mechanisms that give rise to fast and slow products. In both cases, excitation is believed to occur t...

We consider a Fabry-Perot resonance a transmission band edge resonance in periodic layered structures involving birefringent layers. In a previous publication Phys. Rev. E 72, 036619 2005 we have shown that the presence of birefringent layers with misaligned in-plane anisotropy can dramatically enhance the performance of the photonic-crystal resonator. It allows us to reduce its size by an orde...

In the present work, the non-spherical dust grain characteristics of comet Hale-Bopp are studied using the T-matrix method and the modified power law distribution function. It is found that the observed data fits very well with the power index (α) = −3. The best fit values of complex refractive index (n, k) and the aspect ratio (E) at α = −3 are calculated to be (1.382, 0.035, 0.936) and (1.379...

We present polarimetric observations of the afterglow of gamma-ray burst (GRB) 021004, obtained with the Nordic Optical Telescope (NOT) and the Very Large Telescope (VLT) between 8 and 17 hours after the burst. Comparison among the observations shows a 45 degree change in the position angle from 9 hours after the burst to 16 hours after the burst, and comparison with published data from later e...

The origin of the multiple horizontal charge layers observed in the trailing stratiform region of mesoscale convective systems is explained for the first time on the basis of energy considerations and stability calculations. The latter indicate the presence of a cloud-instability with respect to formation of horizontal polarization layers and associated space charge layers. The author's polariz...