To decide whether the same method can be used to measure the specific heat capacity of a sample, the following factors that affect measurement during thermal diffusivity tests need to be analyzed: 1  Rise in temperature. 2  Laser pulse magnitude. 3  Reflection by other media. 4  Sample-related problems.
Extreme Lateral Interbody Fusion (XLIF) Extreme lateral interbody fusion (XLIF) is a minimally invasive procedure performed through the side of the body to treat spinal disorders and reduce long-term back or leg pain that has not responded to other treatments, such as steroid injections, physical therapy and pain medication.
The COUNTIF function allows you to count how many times you have an item in a list. But when you want to do a count on several criteria, the function COUNTIF shows its limits. Thatâs why Microsoftâs development teams have built since Office 2007 a new feature of counting multiple criteria, itâs the COUNTIFS function.