نتایج جستجو برای: volume flux

تعداد نتایج: 397699  

2006
K. BAUMBACH

The aim of this paper is to compare some recent numerical schemes for solving hyperbolic conservation laws. We consider the flux vector splitting finite volume methods, finite volume evolution Galerkin scheme as well as the discontinuous Galerkin scheme. All schemes are constructed using time explicit discretization. We present results of numerical experiments for the shallow water equations fo...

Journal: :Journal of mathematical biology 2011
James D Benson Carmen C Chicone John K Critser

Cell volume and concentration regulation in the presence of changing extracellular environments has been studied for centuries, and recently a general nondimensional model was introduced that encompassed solute and solvent transmembrane flux for a wide variety of solutes and flux mechanisms. Moreover, in many biological applications it is of considerable interest to understand optimal controls ...

Journal: :Physical review letters 2013
M G Aartsen R Abbasi Y Abdou M Ackermann J Adams J A Aguilar M Ahlers D Altmann J Auffenberg X Bai M Baker S W Barwick V Baum R Bay K Beattie J J Beatty S Bechet J Becker Tjus K-H Becker M Bell M L Benabderrahmane S BenZvi J Berdermann P Berghaus D Berley E Bernardini A Bernhard D Bertrand D Z Besson D Bindig M Bissok E Blaufuss J Blumenthal D J Boersma S Bohaichuk C Bohm D Bose S Böser O Botner L Brayeur A M Brown R Bruijn J Brunner S Buitink M Carson J Casey M Casier D Chirkin B Christy K Clark F Clevermann S Cohen D F Cowen A H Cruz Silva M Danninger J Daughhetee J C Davis C De Clercq S De Ridder P Desiati G de Vries-Uiterweerd M de With T DeYoung J C Díaz-Vélez J Dreyer M Dunkman R Eagan B Eberhardt J Eisch R W Ellsworth O Engdegård S Euler P A Evenson O Fadiran A R Fazely A Fedynitch J Feintzeig T Feusels K Filimonov C Finley T Fischer-Wasels S Flis A Franckowiak R Franke K Frantzen T Fuchs T K Gaisser J Gallagher L Gerhardt L Gladstone T Glüsenkamp A Goldschmidt G Golup J A Goodman D Góra D Grant A Groß M Gurtner C Ha A Haj Ismail A Hallgren F Halzen K Hanson D Heereman P Heimann D Heinen K Helbing R Hellauer S Hickford G C Hill K D Hoffman R Hoffmann A Homeier K Hoshina W Huelsnitz P O Hulth K Hultqvist S Hussain A Ishihara E Jacobi J Jacobsen G S Japaridze K Jero O Jlelati B Kaminsky A Kappes T Karg A Karle J L Kelley J Kiryluk F Kislat J Kläs S R Klein J-H Köhne G Kohnen H Kolanoski L Köpke C Kopper S Kopper D J Koskinen M Kowalski M Krasberg G Kroll J Kunnen N Kurahashi T Kuwabara M Labare H Landsman M J Larson M Lesiak-Bzdak J Leute J Lünemann J Madsen R Maruyama K Mase H S Matis F McNally K Meagher M Merck P Mészáros T Meures S Miarecki E Middell N Milke J Miller L Mohrmann T Montaruli R Morse R Nahnhauer U Naumann H Niederhausen S C Nowicki D R Nygren A Obertacke S Odrowski A Olivas M Olivo A O'Murchadha S Panknin L Paul J A Pepper C Pérez de los Heros C Pfendner D Pieloth N Pirk J Posselt P B Price G T Przybylski L Rädel K Rawlins P Redl E Resconi W Rhode M Ribordy M Richman B Riedel J P Rodrigues C Rott T Ruhe B Ruzybayev D Ryckbosch S M Saba T Salameh H-G Sander M Santander S Sarkar K Schatto M Scheel F Scheriau T Schmidt M Schmitz S Schoenen S Schöneberg L Schönherr A Schönwald A Schukraft L Schulte O Schulz D Seckel S H Seo Y Sestayo S Seunarine C Sheremata M W E Smith M Soiron D Soldin G M Spiczak C Spiering M Stamatikos T Stanev A Stasik T Stezelberger R G Stokstad A Stößl E A Strahler R Ström G W Sullivan H Taavola I Taboada A Tamburro S Ter-Antonyan S Tilav P A Toale S Toscano M Usner D van der Drift N van Eijndhoven A Van Overloop J van Santen M Vehring M Voge M Vraeghe C Walck T Waldenmaier M Wallraff R Wasserman Ch Weaver M Wellons C Wendt S Westerhoff N Whitehorn K Wiebe C H Wiebusch D R Williams H Wissing M Wolf T R Wood K Woschnagg C Xu D L Xu X W Xu J P Yanez G Yodh S Yoshida P Zarzhitsky J Ziemann S Zierke A Zilles M Zoll

We report the first measurement of the atmospheric electron neutrino flux in the energy range between approximately 80 GeV and 6 TeV, using data recorded during the first year of operation of IceCube's DeepCore low-energy extension. Techniques to identify neutrinos interacting within the DeepCore volume and veto muons originating outside the detector are demonstrated. A sample of 1029 events is...

2006
STEFAN DIEHL S. Diehl

Abstract. The main purposes of a clarifier-thickener unit is that it should produce a high underflow concentration and a zero effluent concentration. The main difficulty in the control of the clarification-thickening process (by adjusting a volume flow) is that it is non-linear with complex relations between concentrations and volume flows via the solution of a PDE – a conservation law with a s...

2008
D. Lüst

We use F-theory to derive a general expression for the flux potential of type II compactifications with D7/D3 branes, including open string moduli and 2-form fluxes on the branes. Our main example is F-theory on K3 × K3 and its orientifold limit T /Z2× K3. The full scalar potential cannot be derived from the bulk superpotential W = ∫ Ω ∧G3 and generically destabilizes the orientifold. Generical...

Journal: :Ecology letters 2018
Martino E Malerba Craig R White Dustin J Marshall

Size imposes physiological and ecological constraints upon all organisms. Theory abounds on how energy flux covaries with body size, yet causal links are often elusive. As a more direct way to assess the role of size, we used artificial selection to evolve the phytoplankton species Dunaliella tertiolecta towards smaller and larger body sizes. Within 100 generations (c. 1 year), we generated a f...

2000
Michael Junk Jens Struckmeier

Based on general partitions of unity and standard numerical flux functions, a class of mesh-free methods for conservation laws is derived. A Lax-Wendroff type consistency analysis is carried out for the general case of moving partition functions. The analysis leads to a set of conditions which are checked for the finite volume particle method FVPM. As a by-product, classical finite volume schem...

1999
Matthew P. Reed Jonathan D. Rupp Warren N. Hardy Lawrence W. Schneider

Two new techniques for investigating the thermal skinburn potential of airbags are presented. A reduced-volume airbag test procedure has been developed to obtain airbag pressures that are representative of a dynamic ridedown event during a static deployment. Temperature and heat flux measurements made with this procedure can be used to predict airbag thermal burn potential. Measurements from th...

2004
Dan MATEESCU

This invited paper presents efficient solutions of the Euler and Navier-Stokes equations based on finite difference and finite volume formulations. They were obtained with several methods recently developed for the efficient analysis of steady and unsteady external flows. (i) A biased-flux method based on an explicit finite volume formulation is first presented for the solution of the Euler equ...

Journal: :journal of membrane science and research 0
neil thomas stacey university of the witwatersrand diane hildebrandt university of south africa david glasser university of south africa mark peters university of south africa

comnode classification within membrane residue curves (m-rcms) currently hinges on lyapunov’s theorem and therefore the computation of mathematically complex eigenvalues. this paper presents an alternative criterion for the classification of nodes within m-rcms based on the total membrane flux at node compositions. this paper demonstrates that for a system exhibiting simple permeation behaviour...

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