[1] Saturated soil column experiments were conducted to explore the influence of colloid size and soil grain size distribution characteristics on the transport and fate of colloid particles in saturated porous media. Stable monodispersed colloids and porous media that are negatively charged were employed in these studies. Effluent colloid concentration curves and the final spatial distribution ...

Planar straining and destraining of turbulence is an idealized form of turbulencemeanflow interaction that is representative of many complex engineering applications. This paper studies experimentally the response of turbulence subjected to a process involving planar straining, a brief relaxation and destraining. Subsequent analysis quantifies the impact of the applied distortions on model coef...

The present study aimed to evaluate adipose tissue blood flow (ATBF) by means of laser-Doppler flowmetry (LDF) in humans. Lower body negative pressure (LBNP) and straining known to affect epidermal blood flow through the autonomic nervous system were performed in 11 lean and 11 obese female volunteers. ATBF changes were compared between both groups and also discriminated from skin blood flow (S...

Straining of magnetic fields by large-scale shear flow, generally assumed to lead intensification and generation small scales, is re-examined in light the persistent observation astrophysics. It shown that, magnetohydrodynamic turbulence, unstable flows have unexpected effect sequestering energy at large due counteracting straining motion nonlinearly excited stable eigenmodes. This quantified v...

BACKGROUND Many patients with idiopathic constipation do not respond to conventional medical treatments. Recently biofeedback has been proposed as an alternative treatment but the long-term results, and which patients benefit, are unknown. Treatment has usually been restricted to patients with normal colonic transit and impaired pelvic floor coordination on straining. AIMS To determine the ef...

It is well documented that women are prone to constipation-type symptoms premenstrually. An increase in nonstarch polysaccharide intake of 5.9 g/d in the form of palatable drink has proved to be of symptomatic benefit during the premenstrual phase of the cycle resulting in a significant increase in stool frequency, significant decreases in straining at the end of defecation and feelings of inco...