Following the mobile era, the technical architecture and the software development environment of mobile system plat form has been explained, and the future development direction has been summarized in the 5 ways. Closed operating system can be developed in the certain period. However, because of the lack of maintenance of the development infrastructure, it has been met its limit. Android, which is open source mobile, will be greatly spread, As it is the age SNS(Social Network System), I will introduce cases apply to formal community which used Twitter, Facebook, and so on.

풍력발전단지의 운영으로 인한 주된 소음은 풍력발전기의 고체음과 바람을 가르는 마찰 기류음으로 대별된다. 본 원고(原稿)에서는 소음레벨을($L_{PAN}$) 정량적으로 예측, 계산하는데 이용하는 소음예측식을 풍력발전에 맞게 이론적으로 해석하고, 소음발생원의 특성을 분석하여 운영시 소음영향 및 저감방안을 검토하였다. 풍력발전 사업계획시 소음예측식과 소음모델링(CadnaA version4.1, SoundPLAN version7.0 해석 결과 등)을 이용한 예측결과를 서로 비교 검토하고, 운영시(사후환경영향조사 등) 실제 소음레벨과 소음예측 결과를 서로 비교분석하여 데이터를 축척하길 바란다. 제언한 소음저감방안이 불충분한 경우 발전기의 배치와 설치간격, 발전기종 및 발전용량, 설치장소의 재선정 등을 추가 검토할 필요가 있다.

The treatment of city life wastes is headache problem. Now, only small portion of burnable wastes is burnt at modern process incinerators, the other large portion is buried in the soil by landfill method. The burnable wastes will be increased year by year. The dioxin, the cancer-causing agent, produced by incineration of wastes influences harmful effect to national human health. The new idea of burnable wastes treatment is using the city life wastes as auxiliary fuel of fluidizing bed combustion boiler of large scale coal-fired power plant. The dioxin-free treatment of burnable wastes is sucessfully achieved by burning the wastes, in flyash storm at fluidizing bed combustion boiler.