Energy reflected in a direction opposite to that of the INCIDENT WAVE. Compare with RETROREFLECTION. Contrast with FORWARD SCATTERING. See also SCATTERING, RADAR SCATTERING.
When suspended particles in the water are illuminated by light from a flash, they reflect the light back at the lens. The particles appear as specks or snow in the photograph
Secondary radiations resulting from the interaction between the primary gamma radiations from the source and the pipe wall.
The communication method between a passive RFID tag and a reader. An RF signal sent by a reader is reflected back to the reader from the tag, which is modulated to transmit data.
1) The portion of a sound wave that is reflected by scatterers directly back toward the source. 2) A qualitative measurement (in decibels) of scatterer concentration which is calculated in the WinRiver software. This calculation corrects the echo intensity data for sound absorption, beam spreading, transducer temperature, etc. and provides an excellent means of tracking relative concentration (e.g. ìIs most of the sediment in the water here or is it there?î). Obtaining a quantitative measurement (e.g. ìHow many mg/L of bottom sediment are in this parcel of water?î) requires a field calibration at the measurement site. There is a third-party software package, Sediview, designed for this task.
Suspended particles in water that are illuminated, and therefore captured on film as a cloud or scattering of light dots, when using a flash underwater near the lens.
radar echo that is reflected, or scattered, at 180 degrees to the direction of the incident wave. Also the scattering of radiant energy into space before it reaches the earth's surface.
That portion of radiation scattered back toward the source.
a phenomenon caused by light from a strobe reflecting back into the camera lens off of small particles in the water between the subject and the lens. This common problem can be minimized with proper strobe positioning and the use of wide angle lenses.
Scattering in directions reverse to the incident beam.
A method of communication between passive tags (ones that do not use batteries to broadcast a signal) and readers. RFID tags using backscatter technology reflect back to the reader radio waves from a reader, usually at the same carrier frequency. The reflected signal is modulated to transmit data.
The scattering of radiant energy into the hemisphere of space bounded by a plane normal to the direction of the incident radiation and lying on the same side as the incident ray; also called backscattering.