\contentsline {subsection}{Fundamental Parameters from O-Type Binaries}{133} \contentsline {section}{\numberline {1.}Introduction}{134} \contentsline {section}{\numberline {2.}Tools}{135} \contentsline {subsection}{\numberline {2.1.}Cross-Correlation}{135} \contentsline {subsection}{\numberline {2.2.}Doppler Tomography}{135} \contentsline {subsection}{\numberline {2.3.}Spectral Classification}{136} \contentsline {section}{\numberline {3.}Placement in the HRD}{136} \contentsline {subsection}{\numberline {3.1.}HD\nobreakspace {}93205}{136} \contentsline {subsection}{\numberline {3.2.}HD\nobreakspace {}149404}{137} \contentsline {subsection}{\numberline {3.3.}HD\nobreakspace {}152248}{137} \contentsline {section}{\numberline {4.}Light-Curves}{138} \contentsline {subsection}{\numberline {4.1.}DH Cephei}{138} \contentsline {subsection}{\numberline {4.2.}HD\nobreakspace {}152248}{139} \contentsline {subsection}{\numberline {4.3.}HD\nobreakspace {}93205}{139} \contentsline {subsection}{\numberline {4.4.}HD\nobreakspace {}149404}{139} \contentsline {section}{\numberline {5.}Conclusion}{139} \contentsline {paragraph}{\relax Acknowledgments.}{139}