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    Using fractional factorial design and its application to study of effective factors on amount of chest drainage by gomco suction pumps after cardiac surgery
    (Maltepe Üniversitesi, 2009) Moghadam, S. S.; Heidari, R.; Ahadpour, M.
    Because of the nature Cardiac surgery, the bleeding during and after surgery are inevitable. Chest drainage is the removal of excess fluid, air, blood, pus, or other secretions from the chest cavity and space surrounding the lung(s). the accumulated drainage is very dangerous and can stop the heart beat. The amount of chest drainage is depends on some body factors. These factors, their relation to each other and CD, the amount of their effects are important for experts. The DOE methods (Design Of Experiment) can solve these problem. Factorial designs are most efficient methods for experiments involve in the study of the effects of two or more factors. In this paper, we consider fractional factorial design for an amount of Chest Drainage with Gomco suction pumps after Cardiac Surgery which is a medical pump device that help doctors to exit patient’s chest drainage with negative pressure. The objective of this problem is examining factors of the human body that suppose to influence the amount of Chest Drainage ”CD”. There is one response variable for this problem: amount of chest drainage. The fractional factorial design is applied for this problem and then with the normal probably plot we determine the significant factors that influence the chest drainage and finally we analysis the main effect and the relationship between factors and response variable and interaction between factors.