Not only mathematical statistics, differential equations, and models were used to analyze reduce data, but a rough set model is also employed in medical, engineering, other fields them. The goal of this paper introduce minimal structure concept produce new show that it suitable for analyzing most real-life problems, reduction attributes, decision making. We examine the effectiveness following m...

Saving energy of the portable devices including smartphones have become a critical design problem. Modern components of these devices are suffering from hunger of power. In this purpose, many researchers studied how to minimize the energy consumption. Dynamic voltage and frequency scaling (DVFS) is an effective energy saving technique for these portable devices. This paper proposes a simple but...

Green building is a new building system which based positive cycle of ecological system, green economy, energy-saving society and green technology. [2] The pattern of green building is an important research of architecture style in the present society. The energy-saving in illumination system is an important pattern in energy-saving field and is of great significance. Illumination system is a t...

Saving of energy and time in drying of laundry directly depends upon the residual water content of the fabric at the end of the spinning cycle. If the amount of water left in the fabric is significantly reduced then the time and energy required to dry the fabric is less. Both these factors benefit the consumer and the national energy consumption. For the USA alone, the 30 % reduction in the res...