In this paper, the development of a fission-gas collecting and physical-analysis-enabling instrument was proposed for small-volume determination. Analysis specifications require design capable accurately repeatably determining volumes in range 0.07–2.5 mL. This system relies on series gas expansions originating from cylinder with known internal volume. The combined law is used to derive unknown...

making capital and investment is the main driving forces of economic development. based on the investment sensitivity to the changes of some of macro-economic variables and risk and uncertainty, the present study evaluated the effective factors on investment in private sector in iran during 1980-2007. at first, the uncertainty variables of real informal exchange rate, nominal interest rate and ...

While sophisticated analytical methods like Morgenstern-Price or finite elementmethods are available for more realistic analysis of stability of slopes, assessment of the exactvalues of soil parameters is practically impossible. Uncertainty in the soil parameters arisesfrom two different sources: scatter in data and systematic error inherent in the estimate of soilproperties. Hence, stability o...

high harmonic generation is a useful tool for the generation of short, intense attosecond pulses. In order to simulate high harmonic generation, we performed a numerical solution to the time dependent Schrödinger equation. by considering dipole approximation, we predicted generation of a 53 attosecond pulse. In order to see the time and frequency of emission of attosecond pulse, we exploit...

in applications there occur different forms of uncertainty. the twomost important types are randomness (stochastic variability) and imprecision(fuzziness). in modelling, the dominating concept to describe uncertainty isusing stochastic models which are based on probability. however, fuzzinessis not stochastic in nature and therefore it is not considered in probabilisticmodels.since many years t...

The purpose of the current research is to provide a performance appraisal system capable of considering the value chain network structure of research and development (R&D) projects for Complex products and systems (CoPS) under uncertainty of data. Therefore, in order to achieve this goal, a network data envelopment analysis (NDEA) approach and the possibilistic programming to provide a new fuzz...

How can we project uncertainty about model variable(s) X through a function f to characterize the uncertainty about Y = f (X) when f itself has not been precisely characterized? Although the general problem of how to quantitatively express and project model uncertainty though mathematical calculations in a risk analysis can be addressed by only a few strategies, all of which seem either dubious...

During the DELPHI project a first attempt was made to standard-ise the way uncertainty analysis was carried out. However, some of the documents that were produced contain errors w.r.t. the treatment of systematic errors and could easily lead to a misinterpretation of the underlying theory. Therefore Philips Research and CQM decided to produce a document that deals with this subject in a more pr...