This paper is intended to evaluate the wall effects in the pure-drag case of plane cavity flow past an arbitrary body held in a closed tunnel, and to establish a n accurate correction rule. The three theoretical models in common use, namely, the open-wake, Riabouchinsky and re-entrant-jet models, are employed t o provide solutions in the form of some functional equations. From these theoretical...

Results of measurements of control-surface oscillatory derivatives on a sweptback, tapered half-model of a lifting surface of aspect ratio 2 are presented. The measurements were obtained during the development of a derivative rig which measures normal force, pitching moment, wing bending moment and hinge moment due to control surface oscillation. They were made in the 18 in. × 14 in. (0.46 m × ...

High sodium intake has been associated with a higher blood pressure level. Resistance arteries are the main determinants of blood pressure. They are largely regulated by pressure (tensile stress)-induced tone (myogenic tone, MT) and by flow (shear stress)-induced dilation (FD). Thus, we studied the effect of NaCl (8%) intake for 8 weeks on FD and MT in mesenteric resistance arteries of spontane...

The pressure-regulating valve can realize the rapid adjustment and precise controlling of operating pressure Mach number, to stabilize flow field avoid test interference such as air source loss or unstable flow. This paper takes design optimization in trisonic intermittent wind tunnel research object investigate its special characteristic performance tunnel. According requirement tunnel, annula...

The association of blood pressure with reported intake of salt, saturated fats, and alcohol was studied in a sample of 8479 subjects based on a cross sectional survey in a population aged 30 to 64 years. A consistent association was found between the mean arterial pressure and the intake of alcohol (p less than 0.001) and saturated fats (p less than 0.01). There was also a weak association betw...

Endoscopic carpal tunnel syndrome surgery is a modern minimally invasive method of carpal tunnel decompression. However, the method does also have its critics, who emphasize that there is an increased rate of complications in comparison to open procedures. To further improve and optimize results of endoscopic surgery we used an intracarpal pressure sensor to verify the effect of carpal tunnel d...

Suboptimal maternal dietary intake during pregnancy might lead to fetal cardiovascular adaptations and higher blood pressure in the offspring. The aim of the present study was to investigate the associations of maternal first-trimester dietary intake with blood pressure in children at the age of 6 years. We assessed first-trimester maternal daily dietary intake by a FFQ and measured folate, hom...

Experiments were designed to test the hypothesis that cyclooxygenase-2 (COX-2) activity attenuates the blood pressure increase during high NaCl intake by stimulation of endothelial nitric oxide synthase (eNOS)-mediated NO synthesis in the kidney medulla. COX-2(-/-) (C57BL6) an COX-2(+/+) mice were fed a diet with 0.004% (low salt, LS) or 4% (high salt, HS) NaCl for 18 days. Arterial blood press...

We studied the association between the prenatal diets of 212 mothers assessed by a semiquantitative food frequency questionnaire and the blood pressure of their infants. Prenatal potassium, calcium, and magnesium intakes were measured and adjusted for total caloric intake. Infant blood pressure was measured at 2-3 days and at 1, 6, and 12 months of age by using an ultrasonic-auscultatory device...