Executive Certificate Requirements. To earn your Executive Certificate in Public Leadership, you must finish three programs within six years. At least two of which must be from the list of core ...

Regarding economic classification, according to the Brazilian Association of Research Companies (ABEP) (), it was found that 33.1% of the caregivers fit in the economic classes C1 and C2.However, ...

Foam drainage gas recovery technology is a chemical method to solve the serious bottom-hole liquid loading in the middle and late stages of gas well production, and the optimization of foam drainage ...