VAR support should be supplied as close to the load as possible to minimize transmission losses. For voltage control and for improvement of total power factor in a distribution system the circuit- breaker switched capacitor banks can be used. The problems with this solution are the voltage steps caused by the large sizes of the capacitor banks as well as the transients caused on insertion. Thyr...

background china is a country with a high prevalence of hepatitis b. as a special population, migrant workers are more vulnerable to hepatitis b. objectives the present study was conducted to gain insight into the prevalence of hepatitis b and knowledge about hepatitis b among migrant workers in shandong province, china, as well as to explore a series of strategies for preventing and controllin...

The purpose of the study is to investigate average and local surface heat transfer coefficients in a cylinder packed with spheres. Here the term «local» applies to a single sphere within the bed. Averages are derived from the sixteen different spheres that were instrumented and distributed throughout the bed. The experimental technique consisted of introducing a step - wise change in the temper...

The effect of the cholinergic agonist carbachol (CCh) on backpropagating action potential (bAP)-evoked Ca transients in distal apical and basal dendrites of layer 2/3 pyramidal neurons in the primary visual cortex of rats was studied using whole-cell recordings and confocal Ca imaging. In the presence of CCh (20 μM), initial bAP-evoked Ca transients were followed by large propagating secondary ...

This paper presents time-frequency multiresolution wavelet analysis on power system transients. Since it is difficult to analyze transients on-site due to a vast amount of data recorded from a digital transient recorder, it is imperative to develop an intelligent recorder which has the ability to detect and classify different types of power system transients. In order to develop a good approach...

Brief fluctuations in dopamine concentration (dopamine transients) play a key role in behavior towards rewards, including drugs of abuse. Drug-evoked dopamine transients may result from actions at both dopamine cell bodies and dopamine terminals. Inhibitory opsins can be targeted to dopamine neurons permitting their firing activity to be suppressed. However, as dopamine transients can become un...

Cho K-H, Jang H-J, Lee E-H, Yoon SH, Hahn SJ, Jo Y-H, Kim M-S, Rhie D-J. Differential cholinergic modulation of Ca transients evoked by backpropagating action potentials in apical and basal dendrites of cortical pyramidal neurons. J Neurophysiol 99: 2833–2843, 2008. First published April 16, 2008; doi:10.1152/jn.00063.2008. The effect of the cholinergic agonist carbachol (CCh) on backpropagatin...