نتایج جستجو برای: ciency
تعداد نتایج: 4609 فیلتر نتایج به سال:
STRUK, M., SOUKOPOVÁ, J.: Effi ciency of the current municipal waste expenditure – methodology approach and its application. Acta univ. agric. et silvic. Mendel. Brun., 2011, LIX, No. 7, pp. 379–386 The paper introduces methodology designed in order to evaluate and compare effi ciency of chosen municipal waste expenditure via calculating effi ciency ratings. First part of the paper briefl y des...
in some data envelopment analysis (dea) applications, some inputs of dmus have negative values with positive cost. this paper generalizes the global cost malmquist productivity index to compare the productivity of dierent dmus with negative inputs in any two periods of times under variable returns to scale (vrs) technology, and then the generalized index is decomposed to several components. th...
the main objective of this study was to investigate the effi ciency of biological treatmentof azo dye-containing wastewater with a sequencing batch reactor system, followed by ultrafi ltration.the performance of the system was quantifi ed by measuring the chemical oxygen demand and azo dyeconcentration. the biodegradation was carried out under combined alternating anaerobic and aerobiccondition...
Based on concentration probability of estimators about a true parameter, third-order asymptotic e ciency of the rst-order bias-adjusted MLE within the class of rst-order bias-adjusted estimators has been well established in a variety of probability models. In this paper we consider the class of second-order bias-adjusted Fisher consistent estimators of a structural parameter vector on the basis...
| In this paper, we analytically derive an exact expression for the SINR of the two-stage parallel interference cancellation (PIC) multiuser detector in a synchronous , nonorthogonal, binary, CDMA communication system. In order to obtain an intuitive understanding, we consider an approximation to the SINR expression that is well justiied in scenarios where the error probability of the matched l...
Due to their narrow power spectrum between idle and full utilization [2], satisfactory energy e ciency of servers can only be reached in the peak-performance range, whereas energy e ciency obtained for lower activity levels is far from being optimal. Hence, this hardware property obviates a desired energy proportionality or minimal energy use for the entire range of system utilization. To appro...
Suppose that a random variable X of interest is grouped or censored or missing so that one only observes a coarsening of X, i.e., a random set containing X with probability 1. It is assumed that the coarsening mechanism has the coarsening at random property. Suppose furthermore that the coarsening either equals X itself or that is a set with positive X-probability. We modify the NPMLE of the di...
here, a new method called aboodh transform homotopy perturbation method(athpm) is used to solve nonlinear partial dierential equations, we presenta reliable combination of homotopy perturbation method and aboodh transformto investigate some nonlinear partial dierential equations. the nonlinearterms can be handled by the use of homotopy perturbation method. the resultsshow the eciency of this...
in this work, we present a numerical method for solving nonlinear fredholmand volterra integral equations of the second kind which is based on the useof block pulse functions(bpfs) and collocation method. numerical examplesshow eciency of the method.
iamine is a water-soluble vitamin that plays a pivotal role in carbohydrate metabolism. In acute defi ciency, pyruvate accumulates and is metabolized to lactate, and chronic defi ciency may cause polyneuropathy and Wernicke encephalopathy. Classic symptoms include mental status change, ophthalmoplegia, and ataxia but are present in only a few patients [1]. Critically ill patients are prone to t...
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