For accurate and repeatable results, PCR thermal cycling conditions must be optimized to ensure that the desired DNA region is amplified with high specificity and minimal bias between sequence variants.
32.
Over time, though, if subjected to thermal cycling or pressure ( say from a thick layer of ice ) the brine pockets merge and eventually are expelled from the ice.
33.
There are two major factors that can cause the non-moving parts of a computer to fail : thermal cycling causing crack propogation in chips, and electron wind eroding wires within the chips.
34.
One is to use a wind turbine and harvest energy from the airflow generated by the gliding motion, the other is a thermal cycle to extract energy from the differences in air temperature at different altitudes.
35.
Aluminium is near its upper technological limit to accommodate higher temperatures and thermal stress levels because the tensile strength of the metal declines rapidly at 150�C and repetitive thermal cycling between 150�C and 200�C substantially weakens it.
36.
:With electronics where the chips are not soldered in or clamped in position ( ie those in sockets like the ones in the picture to the right ) thermal cycling will gradually work the chips out of their sockets.
37.
Imry and Wortis showed that quenched disorder can broaden a first-order transition in that the transformation is completed over a finite range of temperatures, but phenomena like supercooling and superheating survive and hysteresis is observed on thermal cycling.
38.
On the other hand, if actinides are destroyed using a fast reactor, such as an Integral Fast Reactor, then the fuel will most likely not be exposed to many more thermal cycles than in a normal power station.
39.
Also, cycling temperatures and pressures from starting up and shutting down certain processes ( line kilns, boilers, blast furnaces, pressure vessels, etc . ) may cause metal fatigue or other wear from pressure or thermal cycling.
40.
This increase in the popularity of UV curable conformal coatings is due to its rapid cure speed, level of processing ease, environmental friendliness and thermal cycling resistance, which have never before been achieved with UV conformal coating materials.
