نتایج جستجو برای: carbonate ramp
تعداد نتایج: 30896 فیلتر نتایج به سال:
From a hydrocarbon perspective, the Caney Shale has historically been evaluated as sealing unit, which resulted in limited studies characterizing rock properties of and its suitability for hydraulic fracturing. The objective our research is to help bridge current knowledge gap through integration multiscale laboratory techniques characterize macro- microscale Shale. We employed an integrated ap...
Both calcium-containing and noncalcium-containing phosphate binders can increase gastrointestinal calcium absorption. Previously, we observed that lanthanum carbonate administration to rats with renal failure is not associated with increased calciuria. Additionally, lanthanum carbonate treatment in dialysis patients has been associated with a less pronounced initial decrease in serum parathyroi...
Frequency control, as an ancillary service, is usually provided by generation reserves. In modern generating units the ramp rate limit can be selected; e.g. their ramp rate can be selected to be either normal or fast. In this paper, the impact of selecting the fast ramp rate of generating units on electricity price and its volatility is investigated in simultaneous scheduling of energy and prim...
Abstract. Via 11 years of high-frequency measurements, we calculated the probability space expected offshore wind-speed ramps, recasting it compactly in terms relevant load-driving quantities for horizontal-axis wind turbines. A statistical ensemble events reduced ramp-parameter (ramp acceleration, mean speed after ramp, upper-level shear) was created to capture variability ramp parameters and ...
We present an adaptive iterative learning based flow imputation algorithm, to estimate missing flow profiles in on ramps and off ramps using a freeway traffic flow model. We use the LinkNode Cell transmission model to describe the traffic state evolution in freeways, with on ramp demand profiles and off ramp split ratios (which are derived from flows) as inputs. The model based imputation algor...
Improvement in airport operations using optimization schemes has been an active research area in the recent years. Particular attention has been given to improve taxiway and runway queue operations. However, once these operations are improved by an efficient taxiway schedule, its execution relies on the planning of ramp-area aircraft movements. An important step in the integration of the taxiwa...
To control the traffic flows near on-ramps and off-ramps, ramp metering installations can be used. We compare on-ramp metering and off-ramp metering, with respect to queue forming and total time spent. Both control measures are used to improve traffic flow on freeways, and both have influence on the route choice of the drivers. Although the two measures are very similar, there are some major di...
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