Second-order linear differential equations with constant coefficients
How to solve second-order linear DE using the characteristic equation method, including the different cases for real and complex roots.
engineering calculus readEntries tagged with engineering (3 entries): The vapor-compression refrigeration cycle uses a carefully chosen refrigerant substance to transfer heat from the inside of the box to the surroundings. It uses four devices to make it happen. I will describe the cycle from the throttle, but since it's a cycle any other starting point is valid. Many explanations of the vapor-compression cycle use the expressions "high/low pressure, high/low temperature" (HP, LP, HT, LT) without saying compared to what, causing confusion. I tried to clarify the use of those expressions every time there might be some doubt. An introductory example to applying XRD diffraction, as I learned it in university.Vapor-compression refrigeration cycle
X-Ray Diffraction: determine unit cell parameter $a$ and interplanar spacing $d$ from the diffraction peaks