On the political and policy front, interest has increased in making communities more "age-friendly", an ongoing trend since the World Health Organization launched its global Age-Friendly Cities project. We conceptualize age-friendly communities by building on the WHO framework and applying an ecological perspective. We thereby aim to make explicit key assumptions of the interplay between the pe...

Most of the CO2 emissions are the product of heat generated by computer and various peripheral. Reducing carbon emission is the main task to create environment friendly system devices. The concept of green computing has begun to spread in the past few years, gaining popularity. Besides the widespread sensitivity with ecological issues, such interest also seems from economic needs, since both en...

Multicommodity flows belong to the class of primal block-angular problems. An efficient interior-point method has already been developed for linear and quadratic network optimization problems. It solved normal equations, using sparse Cholesky factorizations for diagonal blocks, and a preconditioned conjugate gradient for linking constraints. In this work we extend this procedure, showing that t...

Energy and environment issues such as the reduction of greenhouse gas emissions and ecological-friendly buildings are increasingly of interest in the Korean housing market. A number of technologies are considered appropriate in the Korean context, including roof-top gardens, low energy underfloor heating and renewable energy (RE) systems. To successfully adopt such technologies into domestic bu...