Abstract: A staggered spread OFCDM scheme is utilized that improves channel estimation. In a first embodiment, each chip stream is time shifted by a predetermined amount and then transmitted on a predetermined subcarrier. This results in time-spread symbols being staggered (time-offset) on different subcarriers allowing for more frequent sampling of the channel. In a second embodiment a staggered spreading approach is applied in the frequency dimension to improve the performance of a system with spreading in the frequency dimension.

Abstract: A method for detecting a presence of an excess delay spread within a received signal is provided. First, a quantitative estimation of a similarity of two segments of the received signal is performed. Thereafter, the presence of the excess delay spread within the received signal based upon the quantitative estimation is determined. In determining the presence of an excess delay spread, the quantitative estimation can be compared to a detection threshold.

Abstract: A process for the synthesis of hydrogen cyanide by the Andrussow process by reaction of methane or methane-containing natural gas, ammonia and oxygen or oxygen-enriched air on a catalyst at an elevated temperature, wherein O 2 O 2 + N 2 = 0.25 - 1.0 ⁢   ⁢ ( vol / vol ) .

Abstract: A process for the synthesis of hydrogen cyanide by the Andrussow process by reaction of methane or methane-containing natural gas, ammonia and oxygen or oxygen-enriched air on a catalyst at an elevated temperature, wherein 1 O 2 O 2 + N 2 = 0.25 - 1.0 ⁢   ⁢ ( vol / vol ) .

Abstract: A Menu Building Component (MBC) builds menus during a computer's idle time. The MBC builds a menu for each menu title on a Menu Bar and stores each built menu in the computer's random access memory (RAM). The MBC requests an allocation of idle time by registering with a Component Manager. The Component Manager notifies the MBC of the availability of idle time by sending a notification signal to the MBC. When the MBC receives the notification signal, the MBC builds the next unbuilt menu corresponding to a menu title on the Menu Bar. When the last menu has been built, the MBC unregisters with the component manager. If a user makes a menu demand for an unbuilt menu, the MBC will build the demanded menu on demand, rather than during an idle time. If the user makes a menu demand for a built menu, the built menu is recalled from RAM and displayed for use by the user. Because the MBC builds menus during idle times, start-up delays and menu demand delays are minimized.