the transmission of radiation/energy refers to the fraction of incident radiation that is absorbed by and passes through a substance or body +++ whereas emission refers to the amount of thermal radiation released or given off by a substance. for a substance to emit energy it does not necessarily need to have absorbed from another source, it may as well be its own internal energy.for instance i myself emit energy to the surroundings all the time, thus im able to set off the PIR detectors inside the special light bulbs my mum installed outside the house. however, a body or substance can only be said to transmit energy if the energy has come from another source, been absorbed by the substance and allowed to pass through it. so its basically the fraction of the absobed energy that leaves the body without being captured.
hope this helps
miet b4-303
The acronyms are synonyms. AES = Atomic Emission Spectroscopy OES = Optical Emission spectroscopy
The difference is one between an cumulative signal vs a transient signal. Oxygen uptake reflects metabolic activity in the neurons. Areas of the brain that participate in a task will be preferentially marked by the tracer, but that signal will dissipate fairly quickly as the oxygen leaves the cell as carbon dioxide. The FDG-PET-CT is a cumulative signal as the active tissue will have an increased glucose transport into the neurons, but as the glucose is cleaved inside the neuron to supply metabolic needs the tracer part of the molecule stays inside the active neurons. So since most of the brain is active at some level this results in a background staining and a poor signal to noise ratio.
Emission spectrum: lines emitted from an atom.Absorption spectrum: absorbed wavelengths of a molecule.
Impulse conduction refers to passage of impulse within the same cell. Where as transmission as the name implies, is concerned about passage of impulses either chemical or electrical from one cell to another.
there isnt a difference moron
stimulated emission causes due to the energy difference between the higher and lower energy level state, but it doesn't depends in the case of spontaneous emission . spontaneous emission causes without any stimulation .In stimulated emission energy transfer is twice the energy transfer of spontaneous emission.
miet b4-303
stimulated emission causes due to the energy difference between the higher and lower energy level state, but it doesn't depends in the case of spontaneous emission . spontaneous emission causes without any stimulation .In stimulated emission energy transfer is twice the energy transfer of spontaneous emission.
reflecttion is a part of incidentradiant but emission may be different of incident radiant.
Fish
Emission nebula glow and reflection nebula reflect the light form other stars
Emission is something be spread out, while absorption is something being taken in.
The acronyms are synonyms. AES = Atomic Emission Spectroscopy OES = Optical Emission spectroscopy
The difference is in the type of radiation used to form the image. A Computed Axial Tomography (CAT) scan can use any type of radiation to create the image, the specific type is not specified in the name, but most often uses X-rays; but a Positron Emission Tomography (PET) scan specifically uses positrons as the radiation form. A third type, Magnetic Resonance Imaging (MRI) uses the miniscule magnetic fields of naturally occurring compounds within the human body to create its images.
* emisssion of electron from the surface of the metal when light of suitable frequency falls-photoelectric emission. * emision of electron from the metal by quantum tunnling of electron.
The difference between continuous spectrum and the atomic emission espectrum of an element is that in emission spectrum, only certain specific frequencies of light are emitted while in a continuous spectrum, a continuous range of colors are seen in the visible light.