car body acceleration is an important factor affecting track safety and ride comfort, which are two primary aspects of railway systems. though track level is an important source of wagon body acceleration, no quantitative relation between them is available and the aim of this paper is to propose a method to address this issue. to do so, car body acceleration is determined using a 10 dof simulat...

in the management of river basins, prediction of river water quality is essential to maintain water quality within standard limits. this study performed a time-series analysis of the prediction of chlorine concentration and electrical conductivity time series data for the period of 1991-2005 from sefidrood river in northern iran. the seasonal prediction of chlorine and electrical conductivity t...

this study aims to investigate the effect of information technology on quality performance. the research model has been proposed based on relationships among research variables and previous studies on information technology. population was all of department’s managers and personnel of marketing and sale, manufacturing and quality control in iran khodro and saipa companies. to collect data, a fi...

this study aimed at investigating the effect of intellectual capital and organizational performance on service quality. research method was descriptive and correlation, structural equation modeling. the population consisted of all 219 male and female staff of sport and youth general offices in west azerbaijan province. 180 subjects were selected as the sample by purposive non-random sampling me...

Car body acceleration is an important factor affecting track safety and ride comfort, which are two primary aspects of railway systems. Though track level is an important source of wagon body acceleration, no quantitative relation between them is available and the aim of this paper is to propose a method to address this issue. To do so, car body acceleration is determined using a 10 DOF simulat...

introduction: scattered photon is one of the main defects that degrade the quality and quantitative accuracy of nuclear medicine images. accurate estimation of scatter in projection data of spect is computationally extremely demanding for activity distribution in uniform and non-uniform dense media. methods: the objective of this paper is to develop and validate a scatter correction technique t...

Scaffolding is an approach used by some modern web frameworks in order to generate an initial version of applications code based on domain model meta data. Since this temporary code should be customized by programmers to implement real systems, its quality metrics are important aspects. In this paper, a methodology is proposed and applied in order to relate domain model size and a quality metri...

With the development of Internet, the availability of various types of data (multimedia, data from databases, ) has increased. These data which present different forms and semantics (we name them ”complex data”) may be unstructured, structured, or semi-structured. In order to prepare them for proper analysis, a multidimensional modeling layer is needed. To be efficient in terms of quality of se...