According to Leonard Cohen's song "Anthem",
Ring the bells that still can ring
Forget your perfect offering
There is a crack, a crack in everything
That's how the light gets in.
Obviously, to detect the crack, you look for the light shining in.
(Or on a plumber, you wait for him to bend over, and then you take a look.)
ADVANTAGES OF IDS
Detection theory allows one to quantify the ability to discern between information bearing patterns and random patterns that causes confusion in the patterns. In electronics, detection theory is often called signal recovery.
Ultrasonic sound is of a frequency that is above our hearing (>20kHz). +++ The question asks for applications. They are numerous but include cleaning (by cavitation in a liquid in which the work-piece is suspended), certain types of welding / soldering, crack detection in welds, encouraging certain chemical or physical reactions... Medically, ultrasound is used for diagnostic imaging such as of the foetus, and the destruction of "stones".
If the crack has enlarged as a result of the freezing water, it is an example of a type of physical weathering known as ice wedging.
Heroin and methamphetamine are both much more addictive than crack.
1PPM
The LAL test is a method for the detection of bacterial endotoxins.
A bioautography is a form of chromatography employing a biological detection method.
A bioautography is a form of chromatography employing a biological detection method.
a pee test.
Sensitivity is the smallest change in concentration of the analyze that can be detected by using that method. This is the slope of the calibration curve. Detection limit is the lowest concentration that can be detected by the particular method.
Reconnaissance
Control systems are synchros which are used in error detection. They provide a voltage to be converted to torque through an amplifying method.
latex CONDOMS for gloves pickle
reconosissance
There are many species , including prewitt sobel robort
SONAR is actually an abbreviation for SOund Navigation And Ranging. RADAR is correspondingly an abbreviation for RAdio Detection And Ranging. LIDAR is correspondingly an abbreviation for LIght Detection And Ranging.