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Is correlation dimension a reliable indicator of low-dimensional chaos in short hydrological time series?

The reliability of the correlation dimension estimation in short hydrological time series is investigated using an inverse approach. According to this approach, first predictions are made using the phase-space reconstruction technique and the artificial neural networks. The correlation dimension is estimated next independently and is compared with the prediction results. A short hydrological serie

Systematic investigation of the thermodynamics of HSA adsorption to N-iso-propylacrylamide/N-tert-butylacrylamide copolymer nanoparticles. Effects of particle size and hydrophobicity

Nanoparticles in biological fluids almost invariably become coated with proteins that may confer nanomedical and nanotoxicological effects. Understanding these effects requires quantitative measurements using simple systems. Adsorption of HSA to copolymer nanoparticles of varying hydrophobicity and curvature was studied using ITC, yielding stoichiometry, affinity, and enthalpy changes upon binding

Prediction model for the impact sound level of lightweight floors

Lightweight floors are often troubled by poor impact-sound insulation. In order to develop and explain structures with acceptable insulation, a deterministic prediction model was developed. The paper considers transmission through the system and the response of the model. Excitation (as caused by the ISO-tapping machine) is considered in a separate paper [1]. The system description employs a spati

A Reacidification Model for Acidified Lakes Neutralized With Calcite

In lake liming operations in Sweden, acidified lakes are reclaimed by neutralization with calcite powder. The amount added is intended to neutralize the water column as well as to delay the reacidification. The reacidification of limed lakes is dependent on the dilution of the dissolved calcium carbonate with time and, for a limited period of time, the dissolution of calcite from the lake sediment

Influence of ionic calcium concentration on fouling during the cross-flow microfiltration of b-lactoglobulin solutions.

The microfiltration (MF) fouling behaviour of -lactoglobulin solutions containing various levels of ionic calcium was investigated on a constant-flux, computer-controlled, cross-flow rig using zirconium oxide membranes. Fouling behaviour was highly dependent on both permeate flux and calcium concentration. At 200 l/(m2 h) on a 50 nm membrane the presence of 8.0 mmol/dm3 (8.0 mM) ionic calcium in t

Reducing power consumption in liquid-crystal displays

Power consumption in liquid-crystal displays is analyzed by including frequent polarity reversals and duty-cycle control. A multistep voltage profile is proposed to reduce the power consumption of multiplexed and nonmultiplexed displays. The authors have also shown that the reduction in the power consumption can be achieved with a minimal increase in hardware complexity of the drive electronics.

Analysis of photon count data from single-molecule fluorescence experiments

We consider single-molecule fluorescence experiments with data in the form of counts of photons registered over multiple time-intervals. Based on the observation schemes, linking back to works by Dehmelt [Bull. Am. Phys. Soc. 20 (1975) 60] and Cook and Kimble [Phys. Rev. Lett. 54 (1985) 1023], we propose an analytical approach to the data based on the theory of Markov-modulated Poisson processes (

Detrusor contraction - Focus on muscarinic receptors

Stimulation of muscarinic receptors is a main mechanism for contractile activation of the detrusor from both animals and humans. Muscarinic receptors are coupled to G-proteins, but the signal transduction systems may vary. In general, M-1 , M-3 and M-5 receptors are considered to couple preferentially to G(q/11) , activating phosphoinositide hydrolysis, in turn leading to mobilization of intracell