نتایج جستجو برای: grade uncertainty
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In dense, urban environments, GPS by itself cannot be relied on to provide accurate positioning information. Signal reception issues (e.g. occlusion, multi-path effects) often prevent the GPS receiver from getting a positional lock, causing holes in the absolute positioning data. In order to keep assisting the driver, other sensors are required to track the vehicle motion during these periods o...
I examine investors' within ESG investment preferences during the COVID-19 pandemic by investigating return spillover effects across three different corporate bonds and equities-based strategies. Investors prefer making investments in leaders investment-grade bond market over equity high yield markets times of uncertainty. It suggests that capital flows away from to market. find refuge firms wi...
The Impact of Uncertainty in Economic Policies on Energy Intensity in Iran Feyzollah Morad MA student of Economics, Department of Economic Development and Planning, Tarbiat Modares University, [email protected] Lotfali Agheli Associate Professor of Economics, Institute of Economics, Tarbiat Modares University, [email protected] Abbas Asari Arani Associate Professor of Economics, Departme...
A suitable design of state estimators requires a representative model for capturing the plant behavior and knowledge about the noise statistics, which are generally not known in practical applications. While the measurement noise covariance can be directly derived from the measurement device reproducibility, the choice of the process noise covariance is much less straightforward. Further, proce...
I n fluidized-bed gas-phase polymerization reactors, several grades of polyethylene are produced in the same equipment by changing the operating conditions. Transitions between the different grades are rather slow and result in the production of a considerable amount of off-specification polymer. Grade transition improvement is viewed here as a dynamic optimization problem, for which numerous a...
The aim of this research is to codify scenario-based strategies in the Land and Housing Organization that has been done with drawing pictures of the future. In the present study, we used Schwartz and simultaneous methods in order to determine the strategies. The present study has been done in the year 2015 within the time horizon of 10 years. The statistical population included all senior munic...
Uncertainty quantification is the state-of-the-art framework dealing with uncertainties arising in all kind of real-life problems. One of the framework’s functions is to propagate uncertainties from the stochastic input factors to the output quantities of interest, hence the name uncertainty propagation. To this end, polynomial chaos expansions (PCE) have been effectively used in a wide variety...
this paper provides a review on major ergodic features of semi-independent hyper mv {algebra dynamical systems. theorems are presentedto make contribution to calculate the entropy. particularly, it is proved that thetotal entropy of those semi-independent hyper mv {algebra dynamical systemsthat have a generator can be calculated with respect to their generator ratherthan considering all the par...
slope stability analysis is a geotechnical engineering problem characterized by many sources ofuncertainty. in slope stability computations, some of these sources are encountered, such as geologicaldetails missed in the exploration program, estimation of soil properties that are difficult to quantifyand many other relevant factors. therefore, accurate reproduction of the spatial variability in ...
this paper investigates the relationship between inflation and inflation uncertainty for the period of 1990-2009 by using monthly data in the iranian economy. the results of a two-step procedure such as granger causality test which uses generated variables from the first stage as regressors in the second stage, suggests a positive relation between the mean and the variance of inflation. however...
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