Results 101 to 110 of about 22,502 (309)

Topological Properties of International Commodity Market: How Uncertainty Affects the Linkages?

open access: yesAgribusiness, EarlyView.
ABSTRACT The study aims to explore the network topology of the international commodity market by examining the interconnections among 21 commodity futures across various categories, including energy, precious and industrial metals, and agriculture. We analyze the market structure of these commodity futures under both low and high uncertainty conditions
Ibrahim Yagli, Bayram Deviren
wiley   +1 more source

Transition to turbulence in the floating half zone convection [PDF]

open access: yes, 2003
The transition process to turbulence is studied experimentally in thermocapillary convection of floating half zone. The onset of temperature oscillations in the liquid bridge of floating half zone and further transitions of the temporal convective ...
阿燕, 胡文瑞, 曹重华
core  

Phase transitions in wave turbulence

open access: yesPhysical Review E, 2012
We consider turbulence within the Gross-Pitaevsky model and look into the creation of a coherent condensate via an inverse cascade originating at small scales. The growth of the condensate leads to a spontaneous breakdown of statistical symmetries of overcondensate fluctuations: First, isotropy is broken, then a series of phase transitions marks the ...
Natalia, Vladimirova   +2 more
openaire   +3 more sources

Mechanics of inhomogeneous turbulence and interfacial layers

open access: yes, 2006
The mechanics of inhomogeneous turbulence in and adjacent to interfacial layers bounding turbulent and non-turbulent regions are analysed. Different mechanisms are identified according to the straining by the turbulent eddies in relation to the strength ...
Hunt, J.C.R.   +5 more
core  

Turbulence modelling of turbulent buoyant jets and compartment fires [PDF]

open access: yes, 2001
Turbulent buoyant jets are a major feature in fire hazards. The solution of the Reynolds Averaged Navier-Stokes (RANS) equations through computational fluid dynamic (CFD) techniques allow such flows to be simulated.
Sanderson, V. E.
core  

Return and Volatility Spillovers Among Major Cotton Markets

open access: yesAgribusiness, EarlyView.
ABSTRACT This study explores return and volatility transmission among major cotton markets. Several events have disrupted cotton supply and demand in recent years, leading to heightened price volatility and significant shifts in market interconnections.
Susmitha Kalli   +3 more
wiley   +1 more source

Cost Pass‐Through in Crisis: Evidence From the German Malt‐Beer Supply Chain

open access: yesAgribusiness, EarlyView.
Abstract Global agri‐food supply chains are increasingly exposed to geopolitical shocks, climate volatility, and market consolidation, factors that disrupt traditional price relationships and reshape market power dynamics. Nowhere is this more visible than in the brewing sector, where agricultural raw materials meet complex industrial processing and ...
Nikolas Bublik, Lukáš Čechura
wiley   +1 more source

The Transition from Spatiotemporal Modulation Instability to Optical Turbulence

open access: yes, 2010
調制不穩定性〈modulation instability〉是許多領域所關注的議題,諸如流體動力學、電漿物理以及光學。在光學中,調變不穩定性將使得微小的振幅或相位上的擾動被放大;也就是一道強度均勻分布的平面光,會因為其上的微小雜訊受非線性效應和散射的交互作用,而使得強度相對較大的部分變得更大,因此強度分布發生變化,出現亮條紋。當非線性超過某個臨界點,原先的亮條紋會變成較小的亮點,這就是光學紊流〈optical turbulence〉。本論文主要在探討由調制不穩定性轉變到光學紊流時,所會發生的有趣現象 ...
To, Orchid, 杜台蘭
core  

Quantum-inspired information entropy in multifield turbulence

open access: yesPhysical Review Research
An information entropy for turbulence systems with multiple field quantities is formulated, as a new paradigm to explore the nonlinear dynamics and pattern formations.
Go Yatomi, Motoki Nakata
doaj   +1 more source

A new drag and lift correlation for spherocylinders from fully resolved Immersed Boundary Method

open access: yesAIChE Journal, EarlyView.
Abstract Many industrial processes deal with non‐spherical particles, e.g., mineral mining and biomass conversion. It is crucial to understand the particles' hydrodynamics to control and optimize these processes. To extend the current state‐of‐the‐art from arrays of spherical particles to spherocylindrical particles, we performed extensive particle ...
A. H. Huijgen   +4 more
wiley   +1 more source

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