Zobrazeno 1 - 10
of 65
pro vyhledávání: '"Preben Alstrøm"'
Publikováno v:
PLoS ONE, Vol 3, Iss 10, p e3415 (2008)
BACKGROUND: In the field of neuroscience microarray gene expression profiles on anatomically defined brain structures are being used increasingly to study both normal brain functions as well as pathological states. Fluorescent tracing techniques in b
Externí odkaz:
https://doaj.org/article/48188db1fb704c6e937720f3abed66e4
Publikováno v:
IFAC Proceedings Volumes. 47:9359-9363
In many processing plants decanter systems are used for separation of heterogeneous mixtures, and even though they account for a large fraction of the energy consumption, most decanters just runs at a fixed set-point. Here, multi model estimation is
Autor:
Preben Alstrøm, Jens Christian Brings Jacobsen, Niels-Henrik Holstein-Rathlou, Ulrik Beierholm
Publikováno v:
Physica A: Statistical Mechanics and its Applications. 376:387-393
A phenomenon of alternate constrictions and dilatations in blood vessels has been studied for over 50 years. Recently, a theory has been presented involving a Rayleigh type instability. We analyze the model in terms of the lengths of the deformations
Publikováno v:
Physica A: Statistical Mechanics and its Applications. 314:61-68
The reliability with which a neuron is able to create the same firing pattern when presented with the same stimulus is of critical importance to the understanding of neuronal information processing. We show that reliability is closely related to the
Autor:
Jens Christian Brings Jacobsen, Finn Gustafsson, Preben Alstrøm, Niels-Henrik Holstein-Rathlou, René Mikkelsen, Ulrik Beierholm
Publikováno v:
American Journal of Physiology-Regulatory, Integrative and Comparative Physiology. 283:R1118-R1130
Vascular damage induced by acute hypertension is preceded by a peculiar pattern where blood vessels show alternating regions of constrictions and dilations (“sausages on a string”). The pattern occurs in the smaller blood vessels, and it plays a
Autor:
Adelle C.F. Coster, Preben Alstrøm
Publikováno v:
Physica A: Statistical Mechanics and its Applications. 290:251-267
We present a dynamical model that embodies both classical and instrumental conditioning paradigms in the same framework. The model is based on the formation of expectations of stimuli and of rewards. The expectations of stimuli are formed in a recurr
Autor:
Jette Randløv, Preben Alstrøm
Publikováno v:
Physica A: Statistical Mechanics and its Applications. 289:561-573
Publikováno v:
Physica A: Statistical Mechanics and its Applications. 274:111-119
A new instability is proposed to explain the ‘sausage-string’ patterns of alternating constrictions and dilatations formed in blood vessels at high blood pressure conditions. Our theory provides predictions for the conditions under which the cyli
Publikováno v:
The European Physical Journal B. 11:665-676
Significant statistical bias in LDA measurements and how to adequately deal with it is a subtle problem when dealing with turbulent flows. In order to attempt a clarification we have performed measurements on a non-standard “grid experiment” wher
Autor:
Preben Alstrøm, Per Lyngshansen
Publikováno v:
Journal of Fluid Mechanics. 351:301-344
We present a critical review of the Hamiltonian and the Lagrangian theories of pattern formation in driven capillary waves at low viscosity and high aspect ratio. We construct a Hamiltonian perturbation theory in the spirit of Milner's (1991) formula