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نتایج جستجو برای Transient response

تعداد نتایج: 735582  
2016
WILLIAM SULIS,

Synchronization has a long history in physics where it refers to the phase locking of identical oscillators. This notion has been applied in biology to such widely varying phenomena as the flashing of fireflies and the binding problem in the brain. The relationship between neural activity and the behaviour of the organism is complex and still poorly understood. There have been attempts to expla...

Journal: :Biophysical journal 2003
Andrej Vilfan, Thomas Duke,

We investigate the isometric transient response of muscle using a quantitative stochastic model of the actomyosin cycle based on the swinging lever-arm hypothesis. We first consider a single pair of filaments, and show that when values of parameters such as the lever-arm displacement and the cross-bridge elasticity are chosen to provide effective energy transduction, the T(2) curve (the tension...

Journal: :Neurocomputing 2000
Alix Herrmann, Wulfram Gerstner,

A good approximation to the integrate-and-fire model with diffusive noise can be obtained using a noisy threshold model. This allows the response of a population of noisy neurons to a current transient to be described using a linear filter. Here we apply these analytical results to the peristimulus time histogram (PSTH) of a single neuron. The effect of the noise on the PSTH in our model is sim...

2008
S. Sree Ranjani, Utpal Roy, P. K. Panigrahi, A. K. Kapoor,

The response of bright and dark solitons to rapid variations in an expulsive longitudinal trap is investigated. We concentrate on the effect of transient changes in the trap frequency in the form of temporal delta kicks and the hyperbolic cotangent functions. Exact expressions are obtained for the soliton profiles. This is accomplished using the fact that a suitable linear Schrödinger stationar...

2009
J. R. MACDONALD,

is desirable ‘in many k.J high-frequency and switching applications of transistors. A single transient response measurement can, in principle, yield frequency response information over a range of frequencies of width determined by the short-time resolution of the transient response measurement and the duration of the measurement. Further, measurement of the response to a unit step or unit impul...

2013
Chengbin Ma, Yue Qiao, Junyi Cao,

In this paper, a general discussion on the controller design for transient response control is first conducted based on the polynomial method. It is shown for general all-pole close-loop systems, their step responses have zero or nearly zero overshoot under the nominal characteristic ratio assignment [2.5, 2, 2, . . .]; while the time constant τ determines the speed of response. The control of ...

2013
Arun Kumar Pandey, S. K. Misra, Sumit Kumar Misra,

Sliding mode (SM) and Proportional-integral-derivative (PID) controller are implemented for Buck converter in a continuous conduction mode. A closed-loop controller system is implemented and goes through the transient time response of buck converter. Sliding mode controller is worked as robust controller and can be used to reduce the Delay time and settling time of the system. In power drives c...

2003
R. Gutierrez-Osuna, A. Gutierrez-Galvez, N. Powar,

This article presents a sensor excitation and signal processing approach that combines temperature modulation and transient analysis to enhance the selectivity and sensitivity of metal-oxide gas sensors. A staircase waveform is applied to the sensor heater to extract transient information from multiple operating temperatures. Four different transient analysis techniques, Pade–Z-transform, multi...

Journal: :Theoretical population biology 2002
Otso Ovaskainen, Ilkka Hanski,

Transient time in population dynamics refers to the time it takes for a population to return to population-dynamic equilibrium (or close to it) following a perturbation in the environment or in population size. Depending on the direction of the perturbation, transient time may either denote the time until extinction (or until the population has decreased to a lower equilibrium level), or the re...