Results 271 to 280 of about 4,425,780 (307)

Modes of onset of epilepsy and differential diagnosis

2013
Epilepsy has protean manifestations and may be diagnosed when two unprovoked seizures have occurred. This determination is nearly always based on the available history because most seizures have stopped long before patients arrive at medical care. Great care must be taken, even by experts, to correctly interpret the history and there is strong evidence
Camfield, Peter, Carol, Camfield
openaire   +2 more sources

Frequency characteristics of Levant's differentiator and adaptive sliding mode differentiator

International Journal of Systems Science, 2007
Sliding mode control has been used for the control of industrial processes. The usual controller designed requires the estimates of state variables which are given by the derivatives of the output. Levant's sliding mode differentiator has been found effective to estimate derivatives of signals.
Alessandro Pisano, Elio Usai
openaire   +1 more source

Differential fertility as a major mode of selection

Trends in Ecology & Evolution, 1988
Population genetic models have focused Primarily on the differential survival of genotypes as the vehicle through which selection can lead to evolutionary change. A growing body of diverse evidence suggests that differential fertility is an equally important mode of selective action.
openaire   +2 more sources

On the dependence of differential mode delay in few-mode fibers on the number of modes

2013 15th International Conference on Transparent Optical Networks (ICTON), 2013
This paper presents the design of few-mode fibers (FMFs) with low differential mode delay (DMD) over the C-band, considering a refractive index profile with a graded core and a cladding trench. By optimizing the core grading exponent and the dimensioning of the trench, the lowest DMD achievable is obtained for different numbers of linearly polarized ...
Filipe Ferreira, Daniel Fonseca, Henrique Silva   +2 more
openaire   +1 more source

Digital sliding-mode-based differentiation

2012 12th International Workshop on Variable Structure Systems, 2012
Homogeneous Sliding Mode (HSM) differentiators provide for the high-accuracy robust finite-time-exact estimation of derivatives. It is shown that their digital implementation misses the homogeneity, and respectively features much worse accuracy. A novel HSM differentiator is proposed, improving the accuracy of its digital one-Euler-step implementation.
openaire   +2 more sources

Common mode, differential mode and baluns : the secrets

2009
No ...
Neto, A., Cavallo, D., Gerini, G.
openaire   +1 more source

Calculation And Measurement Of Mode Transition Matrices For Differential Mode Attenuation And Differential Mode Delay Characterization Of Optical Fibers

Optical Engineering, 1988
A method is described to characterize multimode fiber-optic devices in terms of differential mode attenuation (DMA), differential mode delay (DMD), and mode coupling. It is important to describe these complex properties with only a few data. This is accomplished by the mode transition matrix method, in which each fiber optic component is characterized ...
openaire   +1 more source

Test Method to Differentiate Common Mode and Differential Mode Noise

3rd Symposium and Technical Exhibition on Electromagnetic Compatibility, Rotterdam, 1979
openaire   +1 more source

Differential Diagnosis of Hypercalcemia and Cancer

Ca-A Cancer Journal for Clinicians, 1977
W P Myers, W P Laird Myers
exaly  

Differential Diagnosis of Anemia and Cancer

Ca-A Cancer Journal for Clinicians, 1977
B Hoogstraten, Barth Hoogstraten
exaly