Future electrodynamic-tether missions are expected to be long duration (from several months to years); hence, these missions can expect possibly significant performance degradation due to breaches in tether insulating material caused by hazards such as mi-crometeoroids. In order to accurately predict this performance degradation, the collection of plasma current to these small breaches must be ...

A bound-exciton-induced current bistability is observed under forward bias in an efficient silicon light-emitting diode at low temperatures. Two stable states of the S-type differential conductivity correspond to empty and filled states of bound excitons, respectively. The relationship between the current–voltage characteristic and the bound-exciton population can be accounted for using a rate ...

The kinetic theory of precipitating electrons with Maxwellian source plasma yields the well-known current-voltage relationship (CV-relationship; Knight formula), which can in most cases be accurately approximated by a reduced linear formula. Our question is whether it is possible to obtain this CV-relationship from ̄uid theory, and if so, to what extent it is physically equivalent with the more...

This report describes the class of static translinear circuits, which are capable of accurately implementing a wide range of static nonlinear relationships in the current signal domain, such as products, quotients, fixed power-law relationships, vector magnitude, and rational functions. After a brief historical account of the emergence of the class of translinear circuits, we examine the repres...

The study of dynamic behaviour of circuits containing one or more energy-storing circuit elements powered by photovoltaic (PV) generator has been an intriguing aspect to the PV module design engineer. A PV module constitutes a special power source that has a transcendental current-voltage relationship. As can be expected this makes the transient response analysis for such circuits far more comp...

Membrane Fusion, Large Liposomes, Planar Bilayer, Hemocyanin Channel, Asymmetrical Insertion Large unilamellar vesicles were prepared by detergent removal from micelles containing phosphatidylcholine, phosphatidylethanolamine and phosphatidylserine. Liposomes were then interacted with Megathura crenulata hemocyanin, a well studied channel former. Incubation of the resulting proteoliposomes on o...

The properties of the fast Na inward current of the aminergic neurosecretory dorsal unpaired median (DUM) cells isolated from the sixth abdominal ganglion of the cockroach Periplaneta americana were studied with the whole-cell clamp technique in the presence of Ca and K channel blockers. In about 80 % of the cells, the current activated at -35 mV, was maximal at lOmV and reversed at +48mV (Vrev...

A 200-eV electron beam is incident on an electrode in a laboratory plasma. The emission of secondary electrons produces a region of negative differential resistance in the current-voltage characteristic of the electrode. Spontaneous dynatron oscillations are driven by the negative differential resistance when a resonant circuit is placed in series with the electrode. The instability is driven b...

We have investigated the current-voltage characteristic of monolayers of seperated metal clusters of a size of 1.4 nm with a low-temperature ultrahigh vacuum scanning tunneling microscope. Apart from the usual charge-quantization phenomena, such as Coulomb blockade and staircase, negative differential resistance was observed by performing measurements at distinct locations on the cluster layers...

The aim of this paper is to give a formulation of the dynamics of nonlinear RLC circuits as a geometric Birkhoffian system and to discuss in this context the concepts of regularity, conservativeness, dissipativeness. An RLC circuit, with no assumptions placed on its topology, will be described by a family of Birkhoffian systems, parameterized by a finite number of real constants which correspon...