Objectives: The Energy Expenditure Prediction ProgramTM (EEPP) has been considered as a simple and quantitative method to evaluate physical work load. However, the adoption of EEPP directly to Korean workers is problematic because it was developed i
Geothermal energy is easy to take advantage of renewable energy stored in the earth and the heat exchanger can be collected through a heat exchange piping system. In this study, have been developed a heat exchange pipe loop system which it could be
1. 실험 제목
Cantilever Beam을 이용한 Energy Harvesting Modeling
1) Energy Harvesting
거대 용량의 전기를 발생시키기 위한 전통적인 수력 발전, 화력 발전, 풍력 발전, 조력 발전, 태양광/태양열 발전 기술보다도 음파, 초음파, 또는 주위에서 쉽게 발생할 수 있는 소음, 떨림, 구부러짐, 수축, 신장과
We organized stakeholder groups
new power supplier of glucometer.
Harvesting energy by converting walking motion from the human body into electric power
1. Piezoelectric sheet is easy to be
torn by the outer pressure.
3. Ratio analysis
Test of Profitability
1) Return on Equity (ROE)
Return on equity relates income earned to the investment made by owner. This ratio reflects the simple fact that investors expect to earn more money if they invest more money. SK Energy’s ROE in 2008 is 13.1% (I already explained this measure above). As a result, SK Energy earned 13.1 percent on the owner’s investment. By co