نتایج جستجو برای: eor
تعداد نتایج: 1208 فیلتر نتایج به سال:
Although cigarette smoking and alcohol consumption increase risk for head and neck cancers, there have been few attempts to model risks quantitatively and to formally evaluate cancer site-specific risks. The authors pooled data from 15 case-control studies and modeled the excess odds ratio (EOR) to assess risk by total exposure (pack-years and drink-years) and its modification by exposure rate ...
ESMO Clinical Practice Guidelines on high-grade gliomas dismiss impact of surgical resection on overall survival (OS) in treatment of recurrent glioblastoma (GBM), citing two pooled analyses as evidence of no effect. Neither analysis considered one critical factor in analyzing efficacy of re-resection—the extent of resection (EOR)—known to be important at first surgery. Furthermore, only 12% (3...
Enhanced-Oil Recovery (EOR) for asset acquisition or rejuvenation involves intertwined decisions. In this sense, EOR operations are tied to a perception of high investments that demand EOR workflows with screening procedures, simulation and detailed economic evaluations. Procedures have been developed over the years to execute EOR evaluation workflows. We propose strategies for EOR evaluation w...
This study focuses on the mechanisms responsible for enhanced oil recovery (EOR) from fractured carbonate reservoirs by surfactant solutions, and methods to screen for effective chemical formulations quickly. One key to this EOR process is the surfactant solution reversing the wettability of the carbonate surfaces from less water-wet to more water-wet conditions. This effect allows the aqueous ...
Lack of climate policy and CO2 markets along with a global economic slowdown suggest that we need to rethink our approach to demonstrating CCS at a commercial scale. Austerity measures make it likely that public funding will be tight in coming years, and there is a striking need to ensure that limited funds are spent optimally. Quantitative tools exist for aiding decision making under uncertain...
Recently, nano-EOR has emerged as a new frontier for improved and enhanced oil recovery (IOR & EOR). Despite their benefits, the nanoparticles tend to agglomerate at reservoir conditions which cause their detachment from the oil/water interface, and are consequently retained rather than transported through a porous medium. Dielectric nanoparticles including ZnO have been proposed to be a good r...
Branched Pd nanodendrites have been synthesized by a very simple method, which have displayed substantially enhanced oxygen reduction reaction (ORR) activity compared with that of commercial Pd/C catalysts. The Pd nanodendrites show 4.8 times more activity on the basis of an equivalent noble metal mass for the ORR than the commercial Pd/C catalysts. Moreover, the Pd nanodendrite catalysts also ...
BACKGROUND There is rising evidence that in glioblastoma (GBM) surgery an increase of extent of resection (EoR) leads to an increase of patient's survival. Based on histopathological assessments tumor depiction of Gd-DTPA enhancement and 5-aminolevulinic-acid-fluorescence (5-ALA) might be synergistic for intraoperative resection control. OBJECTIVE To assess impact of additional use of 5-ALA i...
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