Results 41 to 50 of about 110,790 (301)

More Evidence for the WDVV Equations in N=2 SUSY Yang-Mills Theories [PDF]

, 1997
We consider 4d and 5d N=2 supersymmetric theories and demonstrate that in general their Seiberg-Witten prepotentials satisfy the Witten-Dijkgraaf-Verlinde-Verlinde (WDVV) equations.
A. MARSHAKOV, A. MIRONOV, A. MOROZOV, Donagi R., Dubrovin B., Martinec E.   +5 more
core   +2 more sources

Stresses in isostatic granular systems and emergence of force chains

, 2004
Progress is reported on several questions that bedevil understanding of granular systems: (i) are the stress equations elliptic, parabolic or hyperbolic? (ii) how can the often-observed force chains be predicted from a first-principles continuous theory?
C. Liu, C. Thornton, D. Howell, D. F. Bagster, F. H. Hummel, J. Smid, J. R. Melrose, K. Liffman, P. Dantu, Raphael Blumenfeld, S. B. Savage, T. Jotaki   +11 more
core   +1 more source

Two-loop integrals for t t ¯ $$ t\overline{t} $$ +jet production at hadron colliders in the leading colour approximation

Journal of High Energy Physics
We compute the differential equations for the two remaining integral topologies contributing to the leading colour two-loop amplitudes for pp → t t ¯ j $$ t\overline{t}j $$ .
Simon Badger, Matteo Becchetti, Nicolò Giraudo, Simone Zoia   +3 more
doaj   +1 more source

Well-posedness and regularity for a generalized fractional Cahn-Hilliard system [PDF]

, 2018
In this paper, we investigate a rather general system of two operator equations that has the structure of a viscous or nonviscous Cahn--Hilliard system in which nonlinearities of double-well type occur.
Colli, Pierluigi, Gilardi, Gianni, Sprekels, Jürgen   +2 more
core   +3 more sources

Unrolling of Syngonium podophyllum: Functional Anatomy, Morphology and Modelling of Its Peltate Leaves

Advanced Biology, EarlyView.
The unrolling of the peltate leaves in Syngonium podophyllum is analyzed and quantified (left‐hand side to center). These measurements serve to verify a mathematical model for leaf unrolling based on the model used in Schmidt (2007). An additional formula for obtaining a layer mismatch from a prescribed radius is derived.
Michelle Modert, Nick Seinsche, Sören Bartels, Tom Masselter, Thomas Speck   +4 more
wiley   +1 more source

BOUNDARY VALUE PROBLEMS AND GENERAL SYSTEMS OF NONLINEAR EQUATIONS ELLIPTIC IN THE SENSE OF LAVRENT'EV

Demonstratio Mathematica, 1984
This work deals with boundary value problems of the type \(Re[\overline{a(t)} w(t)]=\gamma (t)\) and \(w^+(t)=g(t) w^-(t)+h(t)\) for the general form of the systems of nonlinear equations in two dimensional domains.
openaire   +3 more sources

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

Advanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat, Mojtaba Karamimoghadam, Mohammadreza Lalegani Dezaki, Ali Zolfagharian, Giuseppe Casalino, Antonio Mateo, Mahdi Bodaghi   +6 more
wiley   +1 more source

Localized boundary-domain singular integral equations based on harmonic parametrix for divergence-form elliptic PDEs with variable matrix coefficients [PDF]

, 2013
This is the post-print version of the Article. The official publised version can be accessed from the links below. Copyright @ 2013 Springer BaselEmploying the localized integral potentials associated with the Laplace operator, the Dirichlet, Neumann and
A.E. Taigbenu, C. Miranda, D. Natroshvili, E. Shargorodsky, G. Grubb, G.C. Hsiao, J. Chazarain, J. Sladek, J.-L. Lions, L. Boutet de Monvel, M. Costabel, M.S. Agranovich, M.S. Agranovich, O. Chkadua, O. Chkadua, O. Chkadua, O. Chkadua, O. Chkadua, O. Chkadua, P. Grisvard, S. E. Mikhailov, S. Rempel, S.E. Mikhailov, S.E. Mikhailov, S.E. Mikhailov, S.E. Mikhailov, S.E. Mikhailov, S.G. Mikhlin, T. Zhu, T. Zhu, T.G. Ayele, W. McLean   +31 more
core   +2 more sources

Multiscale Modeling of Process‐Induced Defects in Fused Filament Fabrication‐Printed Materials

Advanced Engineering Materials, EarlyView.
This study presents a predictive multiscale modeling tool for defect analysis of fused filament fabricated‐printed materials and their performance prediction using a mechanistic data science‐based reduced‐order modeling approach. Process‐induced defects are inherent to additively manufactured parts and significantly influence the performance of printed
Satyajit Mojumder, Derick Suarez, Trevor Abbott, Wing Kam Liu   +3 more
wiley   +1 more source

Residual Stress States in Microstructurally Graded PBF–LB/M Austenitic Steel Components

Advanced Engineering Materials, EarlyView.
This study examines microstructurally graded 316L rectangular tube profiles fabricated via PBF–LB/M using a dual‐laser system. A 1 kW top‐hat and a 400 W Gaussian laser create distinct grain sizes and crystallographic texture. Mechanical properties are linked to microstructural evolution driven by processing conditions.
Nico Möller, Florian Loebich, Thomas Wegener, Julia Richter, Jens Gibmeier, Thomas Niendorf   +5 more
wiley   +1 more source