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Thermography, or thermal imaging, measures the heat gradient of skin by detection of infrared radiation. Because heat is a cardinal sign of inflammation, thermal imaging can be used to detect inflammation that may be the cause of lameness, and at times discover a subclinical injury. [53] When used, horses must be placed in an area free of ...
Infrared signature, as used by defense scientists and the military, is the appearance of objects to infrared sensors. [1] An infrared signature depends on many factors, including the shape and size of the object, [2] temperature, [3] and emissivity, reflection of external sources (earthshine, sunshine, skyshine) from the object's surface, [4] the background against which it is viewed [5] and ...
Through mathematical calculations, at a distance of 8 cm, vampire bats should be able to detect humans who emit radiation of 80 μW/cm 2. [1] Temperature threshold measurements were directly measured by stimulating nerve fibers of thermoreceptors in the nose-leaf and upper lip with a water-circulated brass thermode and recording the impulses ...
Leakage detection at dikes and dams; Temperature monitoring in plant and process engineering, including transmission pipelines; Storage tanks and vessels; More recently, DTS has been applied for environmental monitoring as well: Stream temperature; Groundwater source detection and sediment scouring and deposition
A residential heat detector. A heat detector is a fire alarm device designed to respond when the convected thermal energy of a fire increases the temperature of a heat sensitive element. The thermal mass and conductivity of the element regulate the rate flow of heat into the element. All heat detectors have this thermal lag. Heat detectors have ...
Electroreception is the ability to detect electric fields or currents. Some fish, such as catfish and sharks, have organs that detect weak electric potentials on the order of millivolts. [24] Other fish, like the South American electric fishes Gymnotiformes, can produce weak electric currents, which they use in navigation and social communication.
A mare may be in heat for 4 to 10 days, followed by approximately 14 days in diestrus. Thus, a cycle may be short, totaling approximately 3 weeks. [21] Horses mate in spring and summer; autumn is a transition time, and anestrus occurs during winter.
For pipelines carrying fluids at temperatures above or below the ambient ground temperatures (i.e., steam, oil, liquefied gases, or chemicals), an alternative is to use the heat sinking ability of the earth to draw heat from the pipeline under test. The crucial point to remember is that the energy must be flowing through the ground and fluids.