A detergent composition having cold water solubility and exhibiting high calcium tolerance can be produced from biodegradable branched ether derivative compositions derived from a branched ether primary alcohol represented by the formula: . Moreover, virtual routers in the IO switch fabric, which have associated routing tables, provide types of service andor routes for different source-destination pairs based on link-layer information and network-layer information in the packets. Exemplary materials are Si and SixGe1-x, wherein 78<x<92. One of the control signals is transmitted from a source external to the SUT, first logic section, second logic section, and third logic section. The dynamic range of the medical imaging system is adjusted accordingly. The in-plane switching liquid crystal display uses at least one A-plate and adjusts the optical axis direction and the retardation value of the A-plate, thereby improving the contrast characteristic at a front and at a predetermined inclination angle of the in-plane switching liquid crystal display while minimizing a color shift according to viewing angles in the black state.