نتایج جستجو برای: funnel

تعداد نتایج: 3771  

Journal: :Continuum Mechanics and Thermodynamics 2021

Abstract In this paper, the solution to a coupled flow problem for micropolar medium undergoing structural changes is presented. The occur because of grinding in funnel-shaped crusher. standard macroscopic equations mass and linear momentum are solved combination with balance equation microinertia tensor containing production term. constitutive describe viscous material viscosity coefficient de...

2013
THOMAS BERGER TIMO REIS

We consider electrical circuits containing linear resistances, capacitances, inductances. The circuits can be described by differential-algebraic input-output systems, where the input consists of voltages of voltage sources and currents of current sources and the output consists of currents of voltage sources and voltages of current sources. We generalize a characterization of asymptotic stabil...

Journal: :Int. J. Control 2009
Achim Ilchmann Eugene P. Ryan

Tracking of an absolutely continuous reference signal (assumed bounded with essentially bounded derivative) is considered in the context of a class of nonlinear, single-input, single-output, dynamical systems modelled by functional differential equations satisfying certain structural hypotheses (which, interpreted in the particular case of linear systems, translate into assumptions – ubiquitous...

2000
P. Hackenberg E. Marsch G. Mann

Funnels are open magnetic structures connecting the chromosphere with the solar corona (Axford & McKenzie 1997; Marsch & Tu 1997; Hackenberg et al. 1999). We investigate the stationary plasma flow out of funnels with a flux-tube model. The funnel area function is derived from an analytical 2-D magnetic field model. Since the funnel height is only approximately 15 Mm, the area function for great...

2014
Mohamed Jama Madar Oso Willis

E-learning is the application of information technology in the teaching and learning process. This paper presents the Funnel model as a solution for the problems of implementation of E-learning in tertiary education institutions. While existing models such as TAM, theory-based E-learning and pedagogical model have been used over time, they generally been found to be inadequate because of their ...

Journal: :Biophysical journal 2008
Anatoly M Ruvinsky Ilya A Vakser

Studies of intermolecular energy landscapes are important for understanding protein association and adequate modeling of protein interactions. Landscape representation at different resolutions can be used for the refinement of docking predictions and detection of macro characteristics, like the binding funnel. A representative set of protein-protein complexes was used to systematically map the ...

Journal: :Journal of economic entomology 2008
Christopher J Hayes Tom E DeGomez Karen M Clancy Kelly K Williams Joel D McMillin John A Anhold

Lindgren funnel traps baited with aggregation pheromones are widely used to monitor and manage populations of economically important bark beetles (Coleoptera: Scolytidae). This study was designed to advance our understanding of how funnel trap catches assess bark beetle communities and relative abundance of individual species. In the second year (2005) of a 3-yr study of the bark beetle communi...

2011
Bernard J. Jansen

In this research, we evaluate the effectiveness of the buying funnel as a model for understanding consumer interaction with keyword advertising campaigns on web search engines. We analyze data of nearly 7 million records from a 33 month, $56 million (US) search engine marketing campaign of a major US retailer. We classify key phrases used in this campaign into stages of the buying funnel (i.e.,...

2012
Sandy Steffany Pineda David Wilson John S. Mattick Glenn F. King

Australian funnel-web spiders are generally considered the most dangerous spiders in the world, with envenomations from the Sydney funnel-web spider Atrax robustus resulting in at least 14 human fatalities prior to the introduction of an effective anti-venom in 1980. The clinical envenomation syndrome resulting from bites by Australian funnel-web spiders is due to a single 42-residue peptide kn...

Journal: :Journal of economic entomology 2006
E M Hansen J C Vandygriff R J Cain D Wakarchuk

We compared naturally baited trapping systems to synthetically baited funnel traps and fallen trap trees for suppressing preoutbreak spruce beetle, Dendroctonus rufipennis Kirby, populations. Lures for the traps were fresh spruce (Picea spp.) bolts or bark sections, augmented by adding female spruce beetles to create secondary attraction. In 2003, we compared a naturally baited system ("bolt tr...

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