This paper presents a non-uniform cubic C spline framework that unifies three scenarios for incorporating data from basic curves, such as spirals and conics. In the first scenario, no parameterization of the basic curves is available, only well-spaced samples; in the second, a parameterization is available but cannot be used directly in a spline framework; only in the third scenario can pieces ...

This paper highlights algebraic curves and surfaces and illustrates its use in geometric design applications. It contrasts the implicit and parametric representations for algorithms in Geometric Modelling, Scattered Data fitting and Computer Graphics/Mesh Generation. In this framework the choice of which of the two representations to use is determined entirely by the desired optimality of the g...

pinch technology is one of the best methods for designing a multi stream heat exchanger(mshe) through a network; current pinch-based methods, however, lead to a larger and more complicateddesign problems. the major drawback of the current methods is they result in designs having more individual mshe sections than essential, correspond to the enthalpy intervals on temperature vs. enthalpy diagra...

background: palladium-103 (103pd) is a brachytherapy source for cancer treatment. the monte carlo codes are usually applied for dose distribution and effect of shieldings. monte carlo calculation of dose distribution in water phantom due to a med3633 103pd source is presented in this work. materials and methods: the dose distribution around the 103pd model med3633 located in the center of 30×30...

Many researches report that the mobility in organic material is dependent on not only the gate field but also the grain size. There is also some evidence to prove that the gate length is strongly related to the carrier mobility. We construct both the analytical model of organic thin film transistor and the large signal circuit model designed by T-CAD to fit the measured DS DS V I − curves. We f...

in this paper, we study spacelike dual biharmonic curves. we characterize spacelike dual biharmonic curves in terms of their curvature and torsion in the lorentzian dual heisenberg group . we give necessary and sufficient conditions for spacelike dual biharmonic curves in the lorentzian dual heisenberg group . therefore, we prove that all spacelike dual biharmonic curves are spacelike dual heli...

Given the growing spread of glass as a construction material, knowledge structural response must be ensured, especially under dynamic accidental loads. In this regard, an increasingly popular method to probabilistically characterize seismic given structure is based on use “fragility” or “seismic vulnerability” curves. Most existing applications, however, typically refer and members composed tra...