In physics, a closely related quantity called  optical depth  is used instead of absorbance: the natural logarithm of the ratio of incident to transmitted radiant power through a material. The optical depth equals the absorbance times ln(10).The term absorption refers to the physical process of absorbing light, while absorbance does not always measure absorption: it measures attenuation (of transmitted radiant power).he optical depth equals the absorbance times ln(10). The term absorption refers to the physical process of absorbing light, while absorbance does not always measure absorption: it measures attenuation (of transmitted radiant power).
The automated records management system will give the business organization streamlined operations that will reduce paper based transactions to the bare minimum. Simply, the automated records management system is a method that will do all the filing and management of documents for you.
Audio recorder to record audio and sound to MP3, WAV, OGG. 1  Apowersoft Free Audio Recorder. 2  Sound Recorder Professional. 3  Virtual Audio Cable. 4  Fox Magic Audio Recorder. ...udacity makes is very easy for you to remove unwanted noise, static and interference from audio clips. Discover how it's done in this...