Retinal photoreceptors are noisy. They generate discrete electrical events in the dark indistinguishable from those evoked by light and thereby limit visual sensitivity at low levels of illumination. The random spontaneous events are strongly temperature-dependent and have been attributed to thermal isomerizations of the vitamin A chromophore of rhodopsin,… (More)
Retinal photoreceptors generate discrete electrical events in the dark indistinguishable from those evoked by light and the resulting dark signals limit visual sensitivity at low levels of illumination. The random spontaneous events are strongly temperature dependent and in both vertebrate and invertebrate photoreceptors require activation energies usually… (More)
—In this paper we study protein based memories. We present a model of computing based on protein based processors and also offer constant time algorithms for many fundamental problems. We also propose elegant solutions for the diffraction effects associated with protein based memories thus solving a long-standing open problem.
—With an ever increasing volume of digital data there is a huge increase in the demand for much faster, smaller, and denser storage technologies. Conventional two dimensional (surface) storage/memory technologies may soon be replaced with much faster and denser three dimensional volumetric (holographic) storage technologies. Photo sensitive protein… (More)
2001. Piece-by-piece approach for solving large nonlinear water resources management model. A model of investment under uncertainty: Modern irrigation technology and emerging markets in water.
The photovoltaic signal associated with the primary photochemical event in an oriented bacteriorhodopsin film is measured by directly probing the electric field in the bacteriorhodopsin film using an ultrafast electro-optic sampling technique. The inherent response time is limited only by the laser pulse width of 500 fs, and permits a measurement of the… (More)