نتایج جستجو برای: operating reserve
تعداد نتایج: 186560 فیلتر نتایج به سال:
BACKGROUND Recent studies using stress-rest perfusion cardiovascular magnetic resonance (CMR) demonstrated a close correlation between myocardial ischemia and reduced fractional flow reserve (FFR). However, its diagnostic concordance may be reduced in patients with multivessel disease. We sought to evaluate the concordance of adenosine stress-rest perfusion CMR for predicting reduced FFR, and t...
Objective: To compare head to head the indices of left ventricular contractile reserve assessed by highdose dobutamine in the five-year prognosis of patients with idiopathic dilated cardiomyopathy. Design and setting: Prospective study in a tertiary care centre. Patients: 63 consecutive patients with idiopathic dilated cardiomyopathy. Interventions: High-dose dobutamine stress echocardiography ...
The Crew Reserve Assignment Problem (CRAP) considers the assignment of the crew members to a set of reserve activities covering all the scheduled flights in order to ensure a continuous plan so that operations costs are minimized while its solution must meet hard constraints resulting from the safety regulations of Civil Aviation as well as from the airlines internal agreements. The problem con...
eographic markets are currently defined by market analysts at each of the twelve Federal Reserve Banks, with oversight by the Federal Reserve Board and even the U.S. Supreme Court. In 1963, in U.S. v. Bank of Philadelphia, the Court ruled that the market for bank deposits is local. That 1963 ruling still unifies market analysis at each of the twelve Reserve Banks. The flavor of analysis differs...
This paper compares the coherent groups of load buses based on Reactive Reserve Margin (RRB) obtained from the V-Q curve analysis and a novel generator sensitivity based method for optimal placement of STATCOM. The V-Q curve is one of the popular methods to study voltage instability problems in power systems during the post transient period or critical peak loads. The reactive reserve margin ob...
Expectation has an important role in oil price fluctuation and it seems which one of the important factors is for changing supply behaviour however oil price changes. Identification of mentioned expectation could help us for partly and continuously control the oil market situation.one of the important factor that could have effects on future oil price expectation is volume of current reserve oi...
Nowadays, increasing the renewable energy applications in power system, especially wind power, has caused higher imbalance probability between generation and demand. Therefore, an accurate estimation of wind farm reserve requirements and the reserve cost reduction in power systems with high wind power penetration is very important. In this paper, the reserve requirements of a wind farm are esti...
It is commonly believed that the Fed’s ability to control the federal funds rate stems from its ability to alter the supply of liquidity in the overnight market through open market operations. This paper uses daily data compiled by the author from the records of the Trading Desk of the Federal Reserve Bank of New York over the period March 1, 1984, through December 31, 1996: He analyzes the Des...
BACKGROUND Humans are able to compensate for low-volume blood loss with minimal change in traditional vital signs. We hypothesized that a novel algorithm, which analyzes photoplethysmogram (PPG) wave forms to continuously estimate compensatory reserve would provide greater sensitivity and specificity to detect low-volume blood loss compared with traditional vital signs. The compensatory reserve...
There have been very few performance studies of hardware-managed translation look-aside buffers (TLBs).The major reason is the lack of efficient and accurate analysis tools. Newer operating systems, applications, and the popularity of the client-server model of computation place a greater burden than their predecessors on memory system components such as TLBs. Thus it is becoming more important...
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