Search results
Results from the WOW.Com Content Network
Example life cycle assessment (LCA) stages diagram. Hence, it is a technique to assess environmental impacts associated with all the stages of a product's life from raw material extraction through materials processing, manufacture, distribution, use, repair and maintenance, and disposal or recycling. The results are used to help decision-makers ...
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate; Help; Learn to edit; Community portal; Recent changes; Upload file
Combining such data sets can enable accounting for long chains (for example, building an automobile requires energy, but producing energy requires vehicles, and building those vehicles requires energy, etc.), which somewhat alleviates the scoping problem of traditional life-cycle assessments. EIO-LCA analysis traces out the various economic ...
Life-cycle assessment (LCA or life cycle analysis) is a technique used to assess potential environmental impacts of a product at different stages of its life. This technique takes a "cradle-to-grave" or a "cradle-to-cradle" approach and looks at environmental impacts that occur throughout the lifetime of a product from raw material extraction, manufacturing and processing, distribution, use ...
Hosted by the National Agricultural Library, the U.S. Life Cycle Assessment Commons (LCA Commons) is a collaboration among federal agencies, private industry, and academic researchers. The intention of LCA Commons is to aggregate and archive life cycle inventory data that represent US economic activities, making it freely available for re-use ...
A direct parallel between these conceptual levels and grade levels is not made because most students would begin at Level A when they are first exposed to statistics regardless of whether they are in primary, middle, or secondary school. [1] [3] A student's level of statistical maturity is based on experience rather than age. [2] [3]
Dynamic assessment is a product of the research conducted by developmental psychologist Lev Vygotsky. It identifies Constructs that a student has mastered (the Zone of Actual Development) Constructs that a student is currently able to understand or tasks a student can do with scaffolding (the Zone of Proximal Development).
The concept of life cycle analysis evolved since the concept was initially considered in the 1970s and 1980s, [3] when life cycle studies focused on the quantifying the energy and raw resources used by a building, and the load on the sewerage and sanitation systems imposed by waste generated in the building, during the operational life of the structure.