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Amphiphilic Bistable Rotaxanes

Chemistry – A European Journal, 2003
AbstractTwo molecular shuttles/switches—a slow one and a fast one—in the shape of amphiphilic, bistable [2]rotaxanes have been synthesized and characterized. Both [2]rotaxanes contain a hydrophobic, tetraarylmethane and a hydrophilic, dendritic stopper.
Jeppesen, J.O.   +10 more
openaire   +3 more sources

Bistability and Electrokinetic Oscillations

Journal of Colloid and Interface Science, 1999
Nonlinear dynamic behavior and electrokinetic oscillations have been investigated for the membrane systems (a) 0.1 N NaCl/KCl parallel Millipore filter parallel 0.01 N NaCl/KCl; (b) 0.1 N NaCl/KCl parallel Whatman Inorganic filter parallel 0.01 N NaCl/KCl; and (c) 0.1 N NaCl/KCl parallel silver-coated filter parallel 0.01 N NaCl/KCl, from the viewpoint
, Rastogi   +4 more
openaire   +2 more sources

Bistability in bubble formation

Physical Review E, 2004
We obtain experimental data on time intervals of a bubble train generated from a nozzle with the air flow rate as the control parameter. Varying the length of the hose that connects the proportionating solenoid valve to the nozzle, we generate bifurcation diagrams showing period-adding cascades, among other dynamical phenomena.
Eduardo, Colli   +3 more
openaire   +2 more sources

A Study of Quantum Bistability

Turkish Journal of Physics, 1996
We report the preliminary results of a numerical simulation of bistable switching in a one dimensional resonant system within the mean-field approximation. The problem is intriguing because of the peculiarity of the existence of a non-unique transport properties of the system, although the scattering states of the potential is expected to be unique.
Ecemiş, M.I., Yalabik, M.C.
openaire   +2 more sources

Loss and recovery of bistability of organic bistable devices

Organic Electronics, 2009
Abstract The effect of voltage exceeding Vmin, the voltage corresponding to the local current minimum, on organic bistable devices is investigated. It is found that when the termination voltage VT exceeds Vmin, with the increasing VT, the bistable effect gets worse and finally lost at VT about 2Vmin.
M.L. Wang   +7 more
openaire   +1 more source

Optical bistability in CuCl

Journal of Luminescence, 1984
Abstract Optical bistability due to biexcitons in CuCl is discussed with respect to its physical origin. We show that switching times and switching intensities are functions of the photon energy of the exciting light beam.
J.B. GRUN, B. HÖNERLAGE, R. LEVY
openaire   +1 more source

Bistable Sigmoid Networks

2019
It is commonly known that Hopfield Networks suffer from spurious states and from low storage capacity. To eliminate the spurious states Bistable Gradient Networks (BGN) introduce neurons with bistable behavior. The weights in BGN are calculated in analogy to those of Hopfield Networks, associated with Hebbian learning.
Stanislav Uschakow   +2 more
openaire   +1 more source

Theory of absorptive bistability

Journal of Luminescence, 1985
Abstract A model for a resonatorless absorptive optical bistability in laser-excited semiconductors is presented. The intensity-dependent absorption coefficient is calculated microscopically taking into account band-gap renormalization and band filling due to formation of an electron-hole plasma.
S.W. KOCH, H.E. SCHMIDT, H. HAUG
openaire   +1 more source

Bistable Solitons

Physical Review Letters, 1986
, Enns, , Rangnekar
openaire   +2 more sources

Bistable carbon nanobracelets

Journal of Molecular Modeling
Existence of bistability for carbon nanobracelets (cyclic molecules with alternating polycyclic regions and double carbon chains) is predicted using calculations based on density functional theory (DFT). It was found that two stable states have the same topological structure of covalent bonds, but different symmetries, with the total energy of the low ...
Sergey A. Vyrko   +6 more
openaire   +2 more sources

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