introduction as a tumor grows, the demand for oxygen and nutrients increases and it grows further if acquires the ability to induce angiogenesis. in this study, we aimed to present a two-dimensional continuous mathematical model for avascular tumor growth, coupled with a discrete model of angiogenesis. materials and methods in the avascular growth model, tumor is considered as a single mass, wh...

graphite oxide constitutes carbon network with oxygen atoms both on hexagonal arrangement and the edge sites. structural and electronic properties for graphite-oxygen complexes have been explored using first-principles total-energy calculations within the local density approximation (lda). band structures and density of states for the propose carbon 3d models are reported. a finite energy gap and...

The article describes the TSAR tool for system availability and availability analysis. Failure and repair model is based on Markov chain defined by states and transitions. Each state can be interpreted as working or broken. Transitions are defined by transition probabilities and transition time probability density functions. Availability and reliability analysis is based on discrete event Monte...