Tác giả: Rachel C. F Sun

Young people are regarded as future assets of the society. Hence, adolescent prevention programs are commonly developed to tackle adolescent risk behavior and positive youth development programs are …

In the prevention science approach, focus is put on identifying risk and protective factors in adolescent risk behavior. Based on this approach, many research and prevention programs have been …

Adolescent substance abuse is a growing concern in Hong Kong and there has been several peaks in adolescent substance abuse in the past two decades. In fact, these peaks mirrored the global trend of …

This book is based upon a special issue published in the International Journal on Disability and Human Development and permission has been obtained from the publisher De Gruyter in Berlin to publish …

There is co-morbid occurrence of adolescent problem behaviors, and these behaviors manifest differently and vary in severity. For instance, some adolescents who suffer from stress and distress become …

This book is based upon a special issue published in the International Journal on Disability and Human Development and permission has been obtained from the publisher De Gruyter in Berlin to publish …

Fuel cell system is an advanced power system for the future that is sustainable, clean and environmental friendly. Fuel cells are electrochemical devices that convert the chemical energy of hydrogen …

This book deals with an analysis of materials issues, status of technologies and potential applications of direct methanol fuel cells. The principle of operation of direct methanol fuel cells and the …

Energy supplies and prices are major economic factors in the U.S., and energy markets are volatile and unpredictable. As an aid in policy making, this book presents a current and historical view of …

This new book examines the production potential of biofuels in the world. World biofuels production was assessed over the 2010 to 2030 timeframe using scenarios covering a range of U.S. policies (tax …

Natural gas markets in North America had a tumultuous year in 2008. This contrasted with the relative stability of 2007. In early 2008, the market tightened and prices moved up. In the summer, supply …

Combined Heat and Power (CHP) is the sequential or simultaneous generation of multiple forms of useful energy (usually mechanical and thermal) in a single, integrated system. CHP systems consist of a …