Sustainable Engineering may be defined as engineering for human development that meets the needs of the present without compromising the ability of future generations to meet their own needs. Examples of Sustainable Engineering include: Using methods that minimize environmental damage to provide sufficient food, water, shelter, and mobility for a growing world population, Designing products and processes so that wastes from one are used as inputs to another, Incorporating environmental and social constraints as well as economic considerations into engineering decisions. High-impact journals are those considered to be highly influential in their respective fields. The impact factor of journal provides quantitative assessment tool for grading, evaluating, sorting and comparing journals of similar kind. It reflects the average number of citations to recent articles published in science and social science journals in a particular year or period, and is frequently used as a proxy for the relative importance of a journal within its field. It is first devised by Eugene Garfield, the founder of the Institute for Scientific Information. The impact factor of a journal is evaluated by dividing the number of current year citations to the source items published in that journal during the previous two years.