The invention relates to chiral nonracemic liquid crystal compounds having achiral tails comprising a perfluoroalkyl terminal portion which are useful as components in liquid crystal to impart high polarization to the mixture. In one embodiment, it is determined, at a first network device, whether to define a network socket with a custom or a default retransmission timeout value to transmit data to a second network device. at a pressure of 760 mm of mercury, have molecular weights within the range of 70 atomic mass units to 175 atomic mass units, and have ClogP values between 0. Generally, the reference counter is initialized to a predetermined number, and altered based on the execution of synchronized code. Therefore, the present invention addresses the needs of engines desiring injection of two distinct quantities of fuel, such as dual fuel engines, by utilizing a direct control fuel injector having a dual concentric check having separate orifices for the pilot and main injections.