Search results
Results from the WOW.Com Content Network
Combustion. The flames caused as a result of a fuel undergoing combustion (burning) Air pollution abatement equipment provides combustion control for industrial processes. Combustion, or burning, [1] is a high-temperature exothermic redox chemical reaction between a fuel (the reductant) and an oxidant, usually atmospheric oxygen, that produces ...
Life expectancy, more technically called the curtate expected lifetime and denoted , [a] is the mean of —that is to say, the expected number of whole years of life remaining, assuming survival to age . [146] So, (2) Substituting ( 1) into the sum and simplifying gives the final result [147]
e. Globalization, or globalisation ( Commonwealth English; see spelling differences ), is the process of interaction and integration among people, companies, and governments worldwide. The term globalization first appeared in the early 20th century (supplanting an earlier French term mondialisation ), developed its current meaning sometime in ...
Eutrophication can be a natural process and occurs naturally through the gradual accumulation of sediment and nutrients. Naturally, eutrophication is usually caused by the natural accumulation of nutrients from dissolved phosphate minerals and dead plant matter in water. Natural eutrophication has been well-characterized in lakes.
Mimicry. Plate from Henry Walter Bates (1862) illustrating Batesian mimicry between Dismorphia species (top row, third row) and various Ithomiini ( Nymphalidae, second row, bottom row) In evolutionary biology, mimicry is an evolved resemblance between an organism and another object, often an organism of another species.
Population momentum is a consequence of the demographic transition. Population momentum explains why a population will continue to grow even if the fertility rate declines. Population momentum occurs because it is not only the number of children per woman that determine population growth, but also the number of women in reproductive age.
Corrosion. Corrosion on exposed metal, including a bolt and nut. Corrosion is a natural process that converts a refined metal into a more chemically stable oxide. It is the gradual deterioration of materials (usually a metal) by chemical or electrochemical reaction with their environment. Corrosion engineering is the field dedicated to ...
Demographic momentum. Demographic momentum is the tendency for growing populations to continue growing after a fertility decline because of their young age distribution. This is important because once this happens a country moves to a different stage in the demographic transition model .