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What is Decibel level?
A unit used to measure the intensity of a sound or the power level of an electrical signal. Someones voice could raise by a decibel.
How do laser bar code scanners work?
Barcode scanners begin by illuminating the code with red light. The sensor of the barcode scanner detects the reflected light from the illumination system and generates an analog signal with varying voltage that represent the intensity (or lack of intensity) of the reflection.
How do you derive kirchhoff's equation thermodynamics?
for the rxn A ---> B, where A is at temp T1 and B at temp T2 1) At constant pressure H1= HB - HA A first converts to B at temp T1 and reh temp rises to T2, thus the heat supplied for this change is Cp(T2-T1), Cp is the heat capacity of products. Hence the heat change will be given by H(path1)= Cp(T2-T1)+H1 2) first the temp of A is raised to T2. the heat supplied for this change is Cp'(T2-T1) , Cp' is the heat capacity of reactants. now A is changed to B with an enthalapy change of H2. H(path2)= Cp'(T2-T1)+H2. H(path1)=H(path2) H2-H1/T2-T1=Cp-Cp'
What does the term attenuate mean in physics?
The term attenuate when related to physics means the reduction of strength of a signal, flow of a current or energy in other electrical systems. It relates to the gradual loss of intensity.
A ball is dropped from a window 64 feet high How long will it take to reach the ground?
The formula for position is x = 1/2at2. If we start at a distance of 40 feet, and gravity is 32 feet per second squared. So in this instance: 40 = 1/2 (32) t2 40 = 16 t2 40/16 = t2 2.5 = t2 t = 1.58 seconds
What is T2 signal in MRI?
The T2 signal is used by MRI machines to help identify different characteristics of tissues within the brain. For example, the T2 signal can help identify if the tissue contains too much water.
What is a t2 signal in the left paraspinous muscle?
There are a multitude of electrical signal released by neurons to activate a response in a muscle. A t2 signal in the left paraspinous muscle refers to the impulse from the t2 vertebrae to the muscle on the left of the spine .
Brain T2 signal abnormal?
What does it mean when the MRI states Marked patchy to confluent abnormal T2 signal white matter? increase brain T2 signal from white matter in MRI might be due to AIDS dementia complex
What is a Hyperintense T2 signal mass in the region of the head of the pancreas?
what is hyper intense t2 lesion in the right liver lobe
What does loss of signal intensity and disc space height mean?
What does loss of signal intensity and disc space height mean
What does it mean the brain parenchyma shows periventricular T2 hyperintensity and a few scattered subcortical foci of increased T2 and flair signal intensity in the frontal lobes that are nonspecifi?
what does this mean? Impression: There are scattered foci of T2/FLAIR hyperintensity within the periventricular, deep and subcortical white matter. The findings are nonspecific but may be seen in mild to moderate small vessel ischemic changes. No evidence for acute infarct or hemorrhage.
Are T2 and Flair signal hyperintensities associated with the white matter in the brain?
yes
What is decreased signal intensity?
A fudge i give
How is a signal able to travel in fiber optics?
The signal is encoded as light; the light changes intensity, for example a higher intensity for a one, or a lower intensity for a zero. (In practice, more complicated encoding schemes are used.)
How does proton density within the tissues affect signal intensity in MRI?
Proton density within the tissue will affect the signal intensity on an MRI. The thicker the tissue, the more intense the return signal will be upon detection.
What is T2 Hyperintensity in an elbow joint?
T2 hyperintesities is a medical term used to describe high intensity areas viewed on an MRI image. In the elbow, it basically means that there is reduced blood flow to that area of the body.
What does low t1 signal intensity mean?
I just had an MRI done and one of the comments was that an area of the scan showed a low signal intensity...as in, something is wrong with the tissue. I just had an MRI done and one of the comments was that an area of the scan showed a low signal intensity...as in, something is wrong with the tissue.
