نتایج جستجو برای: risers
تعداد نتایج: 366 فیلتر نتایج به سال:
A highly transient flow regime called riser slugging can develop in pipelines from wellheads to separation tanks which introduces severe oscillations of pressure and flow rates in off-shore processes. Mitigation of the intensity of riser slugging may be achieved via anticipative control actions on valves positioned at the entrance and at gas/oil exits of the separators. In Phase 1, this work is...
The risk of type 2 diabetes (T2D) is increased by abnormalities in sleep quantity and quality, circadian alignment, and melatonin regulation. A common genetic variant in a receptor for the circadian-regulated hormone melatonin (MTNR1B) is associated with increased fasting blood glucose and risk of T2D, but whether sleep or circadian disruption mediates this risk is unknown. We aimed to test if ...
Abstract The dynamics of the installation process marine risers subjected to shoal/deep seawater is studied. riser assumed be a cantilevered Euler‒Bernoulli beam. upper end clamped on vessel or drilling platform. lower connected Blowout Preventer Stack (BOPs) and Lower Marine Risers Package (LMRP). lateral fluid forces induced by sea wave current are introduced into governing equations motion. ...
BACKGROUND Empty screw holes after hardware removal are stress risers that weaken bone and can lead to refracture in an active individual. We sought to reduce these stress risers. We hypothesize that resorbable screws used as hole fillers would (1) provide immediate strength and (2) maintain this strength during resorption. METHODS Randomized, prospective controlled animal laboratory study wi...
44 45 Millions of subsistence farmers cultivate crops on terraces. These farmers face unique challenges 46 including severe shortages of arable land and remoteness leading to poor access to inputs 47 including nitrogen fertilizer. These challenges contribute to human and livestock malnutrition. 48 Terrace walls (risers) as a vertical surface to grow climbing or trailing legumes represents an 49...
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