Results 61 to 70 of about 15,943 (261)
Covariantising the Beltrami equation in W-gravity [PDF]
Letters in Mathematical Physics, 1996 Recently, certain higher dimensional complex manifolds were obtained in [hep-th/9412078] by associating a higher dimensional uniformisation to the generalised Teichmüller spaces of Hitchin. The extra dimensions are provided by the ``times'' of the generalised KdV hierarchy. In this paper, we complete the proof that these manifolds provide the analog of
openaire +3 more sources
Structural gravity equations with intensive and extensive margins [PDF]
Canadian Journal of Economics/Revue canadienne d'économique, 2010 Abstract Recent trade models with heterogeneous firms have changed the interpretation of gravity equations. Chaney (2008) shows that the effect of distance on the number of exporters and average exports depends on key parameters characterizing the elements of market structure.
Crozet, Matthieu, Koenig, Pamina
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Pickering‐Engineered Microparticles for Magnetically Guided Motion and Light‐Triggered Catalysis
Advanced Functional Materials, EarlyView.Magnetically responsive wax microparticles stabilized by hematite cubes through the Pickering emulsification strategy are developed, showing controlled size, motion, and light‐activated catalytic activity. Annealing under a magnetic field enhances their mobility and steering.
Chiara Ferlito +6 more
wiley +1 more source
Nambu-Goto equation from three-dimensional gravity
Journal of High Energy PhysicsWe demonstrate that the solutions of three-dimensional gravity obtained by gluing two copies of a spacetime across a junction constituted of a tensile string are in one-to-one correspondence with the solutions of the Nambu-Goto equation in the same ...
Avik Banerjee +2 more
doaj +1 more source
Advanced Functional Materials, EarlyView.We introduce a capillary‐filtering‐based particle‐filling (CFPF) process that simultaneously forms vertical thermal pathways and electrical vias within µ‐pores. In situ microfluidic analysis reveals that capillary‐driven velocity gradients generate vorticity that governs µ‐platelet rotation and vertical alignment.
Yujin Mun +11 more
wiley +1 more source
International trade and monopolistic competition without CES : estimating translog gravity [PDF]
, 2010 This paper derives a micro-founded gravity equation in general equilibrium based on a translog demand system that allows for endogenous markups and rich substitution patterns across goods.
Novy, Dennis
core
Economia Aplicada, 1998 This article discusses the trade flow from the Northeast to the others regions of Brazil and to the others countries of the world, using the gravity equation as the theoretical support.
Álvaro Barrantes Hidalgos +1 more
doaj
Gravity Chains: Estimating bilateral trade flows when parts and components trade is important
Journal of Banking and Financial Economics, 2014 Trade is measured on a gross sales basis while GDP is measured on a net sales basis, i.e. value added. The rapid internationalisation of production in the last two decades has meant that gross trade flows are increasingly unrepresentative of the value ...
Richard E. Baldwin, Daria Taglioni
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Advanced Functional Materials, EarlyView.An architecture‐enabled bottom‐heated 3D solar convective evaporator spatially decouples photothermal heating from evaporation, triggering natural convection that intensifies sidewall vapour removal and heat transfer. The system achieves significantly enhanced evaporation rates over 2D and conventional 3D designs while confining salt precipitation to ...
Xiaolong Ma +7 more
wiley +1 more source
Lunin-Maldacena backgrounds from the classical Yang-Baxter equation - Towards the gravity/CYBE correspondence [PDF]
, 2014 We consider γ-deformations of the AdS5×S5 superstring as Yang-Baxter sigma models with classical r-matrices satisfying the classical Yang-Baxter equation (CYBE).
Kentaroh Yoshida +5 more
core +1 more source