The passive electrical properties of glycerol-treated muscle fibers, which have virtually no transverse tubules, were determined. Current was passed through one intracellular microelectrode and the time course and spatial distribution of the resulting potential displacement measured with another. The results were analyzed by using conventional cable equations. The membrane resistance of fibers ...

We present a general study on a high performance supercapacitor based on intercalated reduced graphene oxide with carbon black nanoparticles. Graphene oxide sheets were synthesized by oxidation and exfoliation of natural graphite and were reduced using hydroiodic acid in the presence of carbon black nanoparticles. Graphene paper was fabricated by one-step procedure via simultaneous reducing and...

The mouse is an important model system for understanding the molecular basis of neuronal signaling and diseases of synaptic communication. However, the best-characterized retinal ribbon-style synapses are those of nonmammalian vertebrates. To remedy this situation, we asked whether it would be feasible to track synaptic vesicle dynamics in the isolated mouse rod bipolar cell using time-resolved...

The effect of water contamination in 1 mol L -1 Et4NBF4 dissolved in acetonitrile or in propylene carbonate as electrolyte on the capacitance fading of activated carbon based electrochemical double layer capacitors has been investigated during constant voltage load tests at 2.75 V and 3.5 V cell voltage. For a cell voltage of 2.75 V, water contamination in the PC based electrolyte led to a fast...

Twist-spun yarns made of carbon nanotubes have been shown to work as electrochemical actuators and force sensors. The electrochemical response of these yarns at different bias potentials was studied using electrochemical impedance spectroscopy EIS and compared with results from cyclic voltammetry. Based on the EIS results, the capacitance is estimated first by directly fitting a resistance–capa...

Postembryonic developmental changes in electrophysiological properties of the AIY interneuron class were investigated using whole cell voltage clamp. AIY interneurons displayed an increase in cell capacitance during larval development, whereas steady-state current amplitude did not increase. The time course of the outward membrane current, carried at least in part by K+ ions, matured, from a sl...

Capacitance between terminals of a power semiconductor device substantially affects on its switching operation. This paper presents a capacitance–voltage (C–V) characterization system for measuring high voltage SiC–JFET and the results. The C–V characterization system enables one to impose high drain-source voltage to the device and extracts the capacitance between two of three terminals in FET...

 This article presents an analysis for two related concepts of a capacitive incremental position sensor. In Incremental Capacitance Measurement Mode the periodic change in capacitance is measured to determine the relative displacement between two periodic geometries S1 and S2 with gap-distance of ~ 1 μm. In Constant Capacitance Measurement Mode the distance between S1 and S2 is controlled to k...

The capacitance of a parallel plate capacitor is formulated in basic electrostatics, assuming that the separation between the two electrode plates is very narrow and the fringe field of the edges is negligible. However, in practical problems of electrical and electronic engineering there are many cases where the plate separation is wide and the fringe field effect cannot be neglected. In our pr...

In this paper, we propose an analytical model to compute parasitic coupling capacitance between interconnects on different layers and substrate capacitance. In this method, electric flux is geometrically approximated to model the different capacitive components which combine to determine the overall equivalent capacitance. Based on our approach, capacitances of typical interconnect geometries c...