As the data obtained from the medical centres says that the time it takes for an object to cool down from 100º C to 50ºC. It is a rule that a smaller object cools faster than a larger object of the same material and shape which means that the smaller target has a shorter thermal relaxation time. This fact is important when the tissue needs to be heated to a desired temperature at a certain fluence setting. If the pulse width is too long, the tissue will start cooling itself via thermal conduction prior to the completion of a pulse causing a negative clinical effect. The second parameter that should be taken into consideration when estimating the TRT is the shape of the target tissue. A sphere (skin cells) having 360 degrees of cooling surface area cools faster than a cylinder (hair follicles). This allows hair follicle to retain its heat while the skin cells can cool itself much more efficiently. For this reason, parameters can be selected to destroy the follicle without causing damage to the skin. For targeting smaller structures, a shorter pulse duration and higher fluence are recommended.
what is thermal plastics..?
i like pie and thermal energy does too.
The interior thermal shell is the inside of a cabinet (a refrigerator, or the like) that preserves the coldness and keeps the cold air inside it.
thermal
thermal, and kinetic
The relaxation back to thermal equilibrium of one very dilute species of charged particle in a heat bath of different neutral particles, with which they collide elastically.
Momentum
Relaxation time= mean collision time/(1-) where A is the average angle of scattering that the electron makes with its initial direction
average time, an electron spends between two successive collision, is called relaxation time and time spent by electron at point of contact, is called collision time
Rest and Relaxation or, Rest and Recreation.
Drift velocity refers to a particle's average velocity being influenced by its electric field. Momentum relaxation time is the time required for the inertial momentum of a particle to become negligible.
Leisure means time available for ease and relaxation.
no idea,help me as well
In chemistry, the term relaxation is used to describe a reaction's return to equilibrium and can be measured in temperature change, changes in the electronic filed, or a jump or drop in pressure. The RELAXATION METHOD is used to determine the RELAXATION TIME.
It differs between different polymers. Relaxation Modulus is the time dependent change in stress while maintaining a constant strain.
Yes, when the AV valves open and blood begins to enter the ventricles they are in isotonic relaxation. This is why the pressure does not increase in the ventricles during this time.
Thermal death point is the temperature at which an organism will be killed by heat, and thermal death time is the concept used to determine what that time and temperature must be. These ideas are frequently used in the food and cosmetic industries to eliminate bacterial contamination.