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ZERO RATE FLOW [5 records]

Record 1 2004-07-20

English

Subject field(s)
  • Oil Production
DEF

The maximum flow rate a well could theoretically deliver with zero pressure at the middle of the perforations.

CONT

The absolute open flow potential of a gas well must be determined by a method approved by the Chief Operations Officer.

French

Domaine(s)
  • Production pétrolière
CONT

Le débit maximal absolu d'un puits de gaz doit être déterminé selon une méthode approuvée par le délégué aux opérations.

Spanish

Save record 1

Record 2 2001-05-01

English

Subject field(s)
  • Water Pollution
  • Water Treatment (Water Supply)
CONT

Biological Water Treatment Engineering. Theoretical and practical consideration of various processes for the treatment of water, municipal waste water, and industrial waste water using microbiological community. Covers the analysis of reactor rates(zero, first, second-order reactions, enzyme reactions and temperature effect on reaction rate) as well as bioreactor analysis(batch, CFST, plus flow, and arbitrary flow reactor). Some fundamentals of microbiology, organic and inorganic waste characteristics and flows, activated sludge process and its modifications, aeration kinetics, attached-growth biological treatment processes.

French

Domaine(s)
  • Pollution de l'eau
  • Traitement des eaux
DEF

Type de réacteur entre le réacteur à flux piston et le réacteur à mélange intégral.

Spanish

Campo(s) temático(s)
  • Contaminación del agua
  • Tratamiento del agua
DEF

Tipo de tanque para el cual el grado de mezcla del flujo está comprendido entre el flujo de pistón y la mezcla completa.

CONT

La geometría de los reactores de flujo arbitrario es tal que se pueden combinar los movimientos de fluido caracterizados por los que se encuentran en los de flujo en pistón y continuo.

Save record 2

Record 3 2000-11-24

English

Subject field(s)
  • Rheology
CONT

At extremely high shear rates... the flow curve for a polymer solution approaches linearity.... Similarly, the slope at very slow shear rates... approaches linearity and is called viscosity at zero shear rate.

CONT

The remaining constants are used to model the zero-shear rate viscosity ...

French

Domaine(s)
  • Rhéologie
OBS

La hausse du taux de viscosité est un reflet direct de la taille physique des polymères eux-mêmes.

Spanish

Save record 3

Record 4 1992-12-31

English

Subject field(s)
  • Climatology
CONT

A stationary and non-accelerating flow is described with du/dt=dv/dt=0. With this,(7-3) becomes a set of differential equations for u, v whose solution yields the Ekman spiral. However, if we are not interested in accurate solutions and consider one layer only, we can see the meaning of the friction force as first shown by C. M. Guldberg and H. Mohn in 1883. The wind profile near the earth's surface is usually convex, if represented on a graph with wind speed versus height. The wind speed increases from zero at the earth's surface to significant values near the anemometer level, and further increase of wind speed with height continues at a slower rate. In this situation, the second derivatives of u and v may be assumed proportional to-u and-v, respectively :

French

Domaine(s)
  • Climatologie
DEF

Niveau immédiatement au-dessus de la couche limite de surface qui est pris comme point initial de la spirale d'Ekman.

Spanish

Save record 4

Record 5 1988-02-23

English

Subject field(s)
  • Microbiology and Parasitology
CONT

Product concentration can be maximized by decreasing the flow rate or increasing the activity and concentration of the catalyst. In the traditional fermentation industry-exemplified by antibiotic, amino acid, and organic acid production-batch and fed-batch processes are commonly used, in part because they allow high product concentrations to accumulate by letting the flow rate approach zero.

OBS

Process technology in a bioreactor operation.

French

Domaine(s)
  • Microbiologie et parasitologie

Spanish

Save record 5

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