منابع مشابه
Evaluating the Efficiency of Iranian Regional Railways
Railway transportation plays an important role in the economic development of Iran. National Iranian Railways includes fifteen regional railways which operate independently, but under the supervision of National Iranian Railways Company. Evaluating the efficiency of regional railways is an important issue in Iran and is one of the bases for budget and resource allocation for further developmen...
متن کاملThe Effect of Prolonged Ischemia upon Regional Energy Reserves in the Experimental Glioblastoma1
Changes in levels of known anaerobic energy reserves [glucose, glycogen, adenosine triphosphate (ATP), and phosphocreatine and lactic acid] have been determined in microgram quantities of three different but homogeneous cytologie zones of the experi mental glioblastoma during prolonged ischemie incubation. Xormal murine white matter was studied under identical conditions. Lightly anesthetized w...
متن کاملThe effect of prolonged ischemia upon regional energy reserves in the experimental glioblastoma.
Changes in levels of known anaerobic energy reserves [glucose, glycogen, adenosine triphosphate (ATP), and phosphocreatine and lactic acid] have been determined in microgram quantities of three different but homogeneous cytologie zones of the experi mental glioblastoma during prolonged ischemie incubation. Xormal murine white matter was studied under identical conditions. Lightly anesthetized w...
متن کاملSpectral Analysis of Energy-Constrained Reserves
The definition of a service is key to the ability to meter it, measure it, regulate it, price it, or otherwise take it into consideration. Reserves (a form of power supply insurance) are key to power system operability. Traditionally, reserves have been characterized in terms of time domain quantities such as ramping rate capabilities and the like. Also, traditionally such measures have not con...
متن کاملassessment of the efficiency of s.p.g.c refineries using network dea
data envelopment analysis (dea) is a powerful tool for measuring relative efficiency of organizational units referred to as decision making units (dmus). in most cases dmus have network structures with internal linking activities. traditional dea models, however, consider dmus as black boxes with no regard to their linking activities and therefore do not provide decision makers with the reasons...
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ژورنال
عنوان ژورنال: Economy of Region
سال: 2013
ISSN: 2072-6414
DOI: 10.17059/2013-3-16