Ray tracing and rasterization have long been considered as two fundamentally different approaches to rendering images of 3D scenes, although they compute the same results for primary rays. Rasterization projects every triangle onto the image plane and enumerates all covered pixels in 2D, while ray tracing operates in 3D by generating rays through every pixel and then finding the closest interse...

Each Medical Imaging system has features that are more suitable to be used in certain medical situations than other systems. This motivates the continuous development of imaging systems with better features and fewer drawbacks. Some of the drawbacks are related to the radiation energy. For instance, X-ray is widely used in many imaging modalities such as CT, fluoroscopy and mammography. The abi...

a critical protection requirement for grid connected distributed generators (dg) is anti-islanding protection. in this paper, a new islanding detection method for any possible network loading is proposed based on utilizing and combining various system parameter indices. in order to secure the detection of islanding, eight intentional disturbances are imposed to the system under study in which t...

in the restructured environment of electricity market, firstly the generating companies and the customers are looking for maximizing their profit and secondly independent system operator is looking for the stability of the power network and maximizing social welfare. in this paper, a one way auction in the electricity market for the generator companies is considered in both perfect and imperfec...

In this research program, we use modern x-ray scattering techniques to study structures and phase transitions in thin films and on surfaces. We have two principal experimental facilities, one at MIT and the other at the National Synchrotron Light Source at Brookhaven National Laboratory. At MIT, we have four high-resolution computer-controlled x-ray spectrometers. The angular resolution can be ...