Browsing by Subject "DYNAMICS"
Now showing items 120 of 52

The application of complex network time series analysis in turbulent heated jets
(2014)In the present study, we applied the methodology of the complex networkbased time series analysis to experimental temperature time series from a vertical turbulent heated jet. More specifically, we approach the hydrodynamic ... 
Assessing marine ecosystem response to nutrient inputs
(2001)The response of the Pagasitikos Gulf to enrichment caused by runoff fertilizers and the development and evolution of harmful algal blooms is investigated through ecosystem modelling. A standard generic complex model has ... 
Assessment of genetic structure of Greek brown hare (Lepus europaeus) populations based on variation in random amplified polymorphic DNA (RAPD)
(2002)The RAPD method was used to assess the genetic differentiation of brown hare (Lepus europaeus) populations from Central Greece. Greek wild populations were compared with samples from Austria, Poland, Germany, France, and ... 
Assessment of pressures and impacts on surface water bodies of the Mediterranean. Case study: Pamvotis Lake, Greece
(2013)The aim of the study presented in this article is to assess the ecological status of a surface water body in the Mediterranean using the methodological approach of DriverPressureStateImpactResponse. Based on this ... 
Backorder penalty cost coefficient "b": What could it be?
(2010)The classical economic order quantity (EOQ) model with planned penalized backorders (PB) relies on postulating a value for the backorder penalty cost coefficient, b, which is supposed to reflect the intangible adverse ... 
Boundstate formation in interfacial turbulence: direct numerical simulations and theory
(2013)We examine pulse interaction and boundstate formation in interfacial turbulence using the problem of a falling liquid film as a model system. We perform direct numerical simulations (DNSs) of the full NavierStokes equations ... 
Boundarydriven nonequilibrium gas flow in a grooved channel via kinetic theory
(2007)The nonequilibrium flow of a gas in a twodimensional grooved channel, due to the motion of the wall of the channel, is investigated based on kinetic theory. The presence of the rectangular grooves that are placed periodically ... 
Bubbles growing in supersaturated solutions at reduced gravity
(2004)This work investigates bubbles growing in a liquid saturated with a dissolved gas when its temperature is locally raised above its saturation value, yet below boiling. Local supersaturation is realized by giving heat pulses ... 
Cannabinoid 1 receptordependent transactivation of fibroblast growth factor receptor 1 emanates from lipid rafts and amplifies extracellular signalregulated kinase 1/2 activation in embryonic cortical neurons
(2011)Gprotein coupled receptors may mediate their effects on neuronal growth and differentiation through activation of extracellular signalregulated kinases 1/2 (ERK1/2), often elicited by transactivation of growth factor ... 
A comparison of alternative unit root tests
(2005)In this paper we evaluate the performance of three methods for testing the existence of a unit root in a time series, when the models under consideration in the null hypothesis do not display autocorrelation in the error ... 
Conditional symmetries and the canonical quantization of constrained minisuperspace actions: The Schwarzschild case
(2013)A conditional symmetry is defined, in the phase space of a quadratic in velocities constrained action, as a simultaneous. conformal symmetry of the supermetric and the superpotential. Iris proven that such a symmetry ... 
Deforestation processes in Greece: A spatial analysis by using an ordinal regression model
(2010)Forest land use changes in Greece have been the outcome of combining forces with mostly economic and institutional origin. Interactions between the major land uses have diachronically resulted in spatial patterns of great ... 
Design optimization of quartercar models with passive and semiactive suspensions under random road excitation
(2005)A methodology is presented for optimizing the suspension damping and stiffness parameters of nonlinear quartercar models subjected to random road excitation. The investigation starts with car models involving passive ... 
Ecosystem modelling: Towards the development of a management tool for a marine coastal system partII, ecosystem processes and biogeochemical fluxes
(2012)Pagasitikos gulf is a semienclosed basin highly influenced both by anthropogenic activities (inflow of nutrients at the north and west parts) as well as by water exchange between the gulf and the Aegean Sea at its south ... 
The effects of muscle damage following eccentric exercise on gait biomechanics
(2007)To examine the effects of knee extensors muscle damage on walking and running biomechanics in healthy males. Muscle damage was caused by 60 (6 x 10) maximal eccentric knee flexions of both legs, selected in a random order, ... 
Effects of Pea Cultivation as Cover Crop on NitrogenUse Efficiency and Nitrogen Uptake by Subsequent Maize and Sunflower Crops in a Sandy Soil in Central Greece
(2013)The longterm positive effects of cropping systems involving rotation with cover crops on soil properties and the environment are well recognized. The present work concerns a 3year field experiment focusing on two cropping ... 
Endocrinological profile and follicular development in cyclic ewes subjected to repeated ovum pickup
(2013)Blood concentrations of progesterone, FSH and oestradiol in Karagouniko ewes subjected to laparoscopic ovum pickup (OPU) at specific stages of induced oestrous cycle, were measured. Twentyfour cyclic ewes were randomly ... 
Extreme solitary waves on falling liquid films
(2014)Direct numerical simulation (DNS) of liquid film flow is used to compute fully developed solitary waves and to compare their characteristics with the predictions of lowdimensional models. Emphasis is placed on the regime ... 
Fault detection and optimal sensor location in vehicle suspensions
(2003)A statistical system identification methodology is applied for performing parametric identification and fault detection studies in nonlinear vehicle systems. The vehicle nonlinearities arise due to the function of the ... 
Finite element analysis of discrete edge dislocations: Configurational forces and conserved integrals
(2015)We present a finite element description of Volterra dislocations using a thermal analogue and the integral representation of dislocations through stresses in the context of linear elasticity. Several analytical results are ...