Algae can be used to harness the carbon dioxide, nitrogen, make oxygen and be refined for biofuel.Cyanobacteria is the most common type of microalgae used for biofuel (“Massachusetts company making,” 2011) The biofuel from algae can be cost effective, only costing ten to twenty dollars a barrel to produce....Radiocarbon dating: radioactive carbon decays to nitrogen with a half-life of 5730 years.
To obtain a truly absolute chronology, corrections must be made, provided by measurements on samples of know age.
The most suitable types of sample for radiocarbon dating are charcoal and well-preserved wood, although leather, cloth, paper, peat, shell and bone can also be used.
A shellfish alive today in a lake within a limestone catchment, for instance, will yield a radiocarbon date which is excessively old.
The reason for this anomaly is that the limestone, which is weathered and dissolved into bicarbonate, has no radioactive carbon.
Because of the somewhat short half-life of 14C, radiocarbon dating is not applicable to samples with ages greater than about 50,000 years, because the remaining concentration would be too small for accurate measurement.
Thermoluminescence dating: this method is associated with the effect of the high energy radiation emitted as a result of the decay or radioactive impurities.
In this page, we consider natural reservoir variations and variations brought about by human interaction].
Radiocarbon samples which obtain their carbon from a different source (or reservoir) than atmospheric carbon may yield what is termed apparent ages.
The fiber type, fiber amount, fiber orientation, etc can all be changed to achieve certain properties, whether for mechanical reasons (strength, stiffness) or for other reasons, such as low CTE (coefficient of thermal expansion).
Metals and other materials do not have this tailor ability.
To new users of carbon fiber, understanding the properties of carbon fiber is often challenging. We understand the materials down the fiber level and we know how best to tailor the carbon fiber design to achieve your needs.