نتایج جستجو برای: decline curve analysis
تعداد نتایج: 2982700 فیلتر نتایج به سال:
past earthquakes have demonstrated that old rc bridges may be seismically vulnerable. bridge responses during the last decades illustrated the necessity of the seismic assessment of bridges especially those which were designed with old codes. in this research an existing concrete bridge representative of the most common bridges in the highway system in iran are studied. push over and nonlinear ...
the performance of a decision making unit (dmu) can be evaluated in either across-sectional or a time-series manner, and data envelopment analysis (dea) is a useful method for both types of evaluation. the malmquist productivity index (mpi) evaluates the change in efficiency of a dmu between two time periods. it is defined as the product of the catch-up and frontier-shift terms. in this paper, ...
V2540 Oph (Nova Oph 2002) was independently discovered by Katsumi Haseda and Yuji Nakamura at magnitude 9.0 on 2002 January 24 (Haseda et al. 2002). Retter et al. (2002) detected emission lines of hydrogen and Fe II, indicating that the object is an Fe II class nova caught in the early decline stage. Later examination of photographs revealed that the nova was already at magnitude 8.9 on 2002 Ja...
Compound action potential (CAP) of spinal cord represents valuable properties of neural fibers including excitability, rate of myelination and membrane integrity. These properties are measured using amplitude, latency and area under curve of CAPs recorded from spinal cord. Here, the isolated spinal cord was set in a double sucrose gap (DSG) chamber and its response to intracellular stimulation ...
Background and Objectives: Disorders of height and weight growth are the most important health disorders affecting children younger than two in developing societies. Failure to treat these disorders can lead to the increased mortality and mental, emotional or physical disability. The objective of this study was to investigate the growth trends of children and the factors affecting it. Method...
The impact factor is only one of three standardized measures created by the Institute of Scientific Information (ISI), which can be used to measure the way a journal receives citations to its articles over time. The build-up of citations tends to follow a curve like that of Figure 1. Citations to articles published in a given year rise sharply to a peak between two and six years after publicati...
Recently, vitamin E has been proposed to protect against Adriamycin-induced cardiotoxicity. We studied contractile decline and ultramicroscopic alterations of the heart of rabbits chronically treated with Adriamycin up to a cumulative dose of 400 mg/sq m. High doses of vitamin E did not protect against the Adriamycin-induced development of severe contractile decline as evaluated by means of mea...
background it has been found that itpase deficiency is caused by itpa gene polymorphisms. it was observed that itpa polymorphisms have impact on hematological changes, including hemoglobin (hb)-decline during treatment of chronic hepatitis c (chc) patients with pegylated-interferon (peg-ifn) plus ribavirin (rbv). conclusions in patients with chc, who were treated with peg-ifn plus rbv, hb-decli...
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