Generative parametric CSG models, introduced by Snyder in 1992, have many desirable properties. Their functional representation is generally quite compact and resolution independent, since surfaces are represented as piecewise continuous functional programs. However, in practice they have proven impractical for real time rendering because of the difficulty of compactly and exactly representing ...

With a greater number of real-time graphics applications moving over to parametric surfaces from the polygonal domain, there is an inherent need to address various rendering bottlenecks that could hamper the move. Scaling the polygon count over various hardware platforms becomes an important factor. Much control is needed over the tessellation levels, either imposed by the hardware limitations ...

A novel solar-based combined system which is consisting of a concentrated PV, a double effect LiBr-H2O absorption chiller, and a Proton Exchange Membrane (PEM) is proposed for hydrogen production. A portion of the received energy is recovered to run a double effect absorption chiller and the rest is turned into electricity, being consumed in the PEM electrolyzer for hydrogen producti...

This study investigated the relationship among Iranian English teachers’ adversity quotient, personal growth initiative, and pedagogical success. The participants comprised 28 male and female English teachers and a total of 336 male and female EFL learners who attended the abovementioned teachers’ classes (12 for each teacher). Stoltz’ (1997) Adversity Response Profile (ARP) and Robitsc...

Thermal modeling of an automotive cabin was performed in this paper to predict the inside cabin air temperature. To implement this task, thermal and ventilation loads were estimated and the mass and energy balance conservation equations for dry air and water vapor with considering a new parameter (air circulation ratio) as well as the balance equations of internal components of a cabin were de...

During recent years, several groups have shown that parametric model reduction is possible in general. In particular, it has been shown that it allows us to generate compact thermal models while preserving film coefficients as parameters. Unfortunately, in order to run algorithms, a user should specify how many moments and what type to generate in advance and there were no formal rules to this ...

In source-filter models of speech production, the residual signal what remains after passing the speech signal through the inverse filter contains important information for the generation of naturally sounding re-synthesized speech. Typically, the voiced regions of residual signals are regarded as a mixture of glottal pulse and noise. This paper introduces a novel approach to represent the nois...