527 research outputs found
Bigeye (Thunnus obesus) by-catch estimates from the albcore Spanish surface fishery in the North East Atlantic,2014
IEO, PNDB-UEVersión del edito
Statistics from the Spanish albacore (Thunnus alalunga) surface fisherry on the North Eastern Atlantic in 2014.
En prens
STANDARDIZED NORTH EAST ATLANTIC ALBACORE (Thunnus alalunga) CPUE´S FROM THE SPANISH BAIT BOAT FLEET, PERIOD 1981-2014.
En prens
STANDARDIZED NORTH EAST ATLANTIC ALBACORE (Thunnus alalunga) CPUE´S FROM THE SPANISH TROLL FLEET, PERIOD 1981-2014
En prens
Boundary effects on the nonequilibrium structure factor of fluids below the Rayleigh-Benard instability
We consider a horizontal fluid layer between two rigid boundaries, maintained in a stationary thermal nonequilibrium state below the convective Rayleigh-Benard instability. We derive an explicit expression for the nonequilibrium structure factor in a first-order Galerkin approximation valid for negative and positive Rayleigh numbers R up to the critical Rayleigh number R(c) associated with the appearance of convection. The results obtained for rigid boundaries by the Galerkin-approximation method are compared with exact results previously derived for the case of free boundaries. The nonequilibrium structure factor exhibits a maximum as a function of the wave number q of the fluctuations. This maximum is associated with a crossover from a q(-4) dependence for larger q to a q(2) dependence for small q. This maximum is present at both negative and positive R, becomes pronounced at positive R and diverges as R approaches the critical value R(c)
- …